| 1. | Mechanism for unfolding and folding of folding keyboards of portable computers and other similar devices with a keyboard and a tiltable cover 131 optionally containing a display, wherein the cover/3/and at least one keyboard movable section/1/and/or keyboard fixed section/5/are connected by means of a mechanical link for both horizontal and vertical moving the keyboard movable section/1/and/or for vertical moving the keyboard fixed section/5/. <BR> <BR> <P>2. |
| 2. | Mechanism for unfolding and folding of folding keyboards as in claim 1 wherein said<BR> mechanism contains an auxiliary part/4/at which the keyboard movable section/1/is mounted and relatively to which it is vertically displacable or tiltable about an axis that is approximately parallel to the cover 131 rotation axis, this auxiliary part 141 being movable relatively to the device case/2/. |
| 3. | Mechanism for unfolding and folding of folding keyboards as in claims 1 and 2 wherein said mechanism contains folding hand rests connected to the cover/3/or to the keyboard movable section/1/by means of a mechanical link. |
| 4. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 3 wherein said mechanism contains a deformation energy spring accumulator connected to the cover/31 or to the keyboard movable section/1/and to the device case/2/or to the keyboard fixed section/5/. |
| 5. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 4 wherein the cover/3/or the keyboard movable section/1/is connected to at least one electric motor. |
| 6. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 5 wherein said mechanism contains friction members or mechanical locks connectable to the keyboard section /1,5/or to the folding hand rests, either directly or through some other movable part, e. g. the cover/3/. |
| 7. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 6, wherein the angle between the plane of the cover/3/and the plane of keyboard fixed section/5/, i. e. the cover /3/tilt angle, is changeable without affecting the position and function of other movable parts of the device. |
| 8. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 7, wherein the cover/3/is automatically tiltable towards its closed position independently of the cover/3/tilt <BR> <BR> angle value, a mechanical centrifugal brake or a viscous brake being optionally connected to the<BR> pivotable mounting of the cover/3/and/or of the cover/3/double rotary hinge/6/pivotably mounted at the device case/2/, cover/3/being pivotably mounted at the said double rotary hinge /6/, said brake being connected to device case/2/and its brake effect progressively increasing with the cover/3/or the cover/3/double rotary hinge 161 rotation angular speed and progressively decreasing with decreasing of the angular speed. |
| 9. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover 131 and of the keyboard section/1,5/consists of a rotary joint/9/between the cover/3/and the keyboard section/1, 5/or an auxiliary part/4/, the rotary joint 191 axis being parallel to the cover/3/rotation axis and the keyboard section/1,5/or an auxiliary part 141 is mounted either at an arm/7/pivotably mounted at the device case/2/, the axes of each rotary joint 191 being parallel to the cover/3/rotation axis, or led through an eye/19/or at a rotary translating joint/11/at the device case/2/, optionally at least one of the links of the keyboard section/1, 5/, the cover/3/and device case/2/is made as at least two ball joints/8/with the centers lying at the line parallel to the cover/3/rotation axis. |
| 10. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and of the keyboard section/1,5/consists of a ball joint/8/between the cover/3/and the keyboard section/1,5/or an auxiliary part/4/. |
| 11. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and of the keyboard section/1, 5/consists of a rod/13/spherically fitted to the cover/3/at one end and to the keyboard section/1,5/or to an auxiliary part/4/at the other end and in case of the keyboard section/1, 5/or an auxiliary part 141 being mounted pivotably about an axis parallel to the cover/3/rotation axis or straightly slidingly perpendicularly to the cover/3/rotation axis the rod/13/can be fitted to the keyboard section/1, 5/or to an auxiliary part/4/and/or to the cover/3/by means of rotary joints 191 with axes parallel to the cover/3/ rotation axis. |
| 12. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/consists of a cam joint/12/one of the members of which, i. e. a cam/15/, cam follower/16/, guide/18/, slide block/17/or bar/24/is fixed to the cover/3/and the other is fixed to the keyboard section/1,5/or to the auxiliary part /4/, the cam follower/16/being always fitted to a part so that it does not lie at part rotation axis and the cam/15/trajectory lies approximately on the lateral area of the cylinder the axis of which is coincident with the cover/3/rotation axis in case the keyboard movable section/1/or the auxiliary part 141 is approximately linearly translating parallelly to the cover/3/rotation axis, at the plane perpendicular to the cover 131 rotation axis in case the keyboard movable section/1/or the auxiliary part/4/is movable at the plane perpendicular to the cover/3/rotation axis or if the keyboard fixed section 151 is linked and in case of the keyboard movable section/1/or the auxiliary part 141 being mounted pivotably the cam/15/trajectory is created approximately on the surface created with basic curve rotation about the rotation axis of the part at which the cam /15/trajectory is created, the basic curve being a circular arc identical with the cam follower/16/ motion trajectory between its limit positions. |
| 13. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover 131 and the keyboard section/1, 5/consists of a lever/14/one of the ends of which is spherically or pivotably connected to the cover/3/or to the keyboard section/1,5/or to the auxiliary part/4/, the lever/14/being led at an eye/19/or a rotarytranslating joint/11/or a translation guideway/10/at the device case/2/, or spherically or pivotably fitted to an arm/7/ that is spherically or pivotably mounted at the device case/2/and the lever/14/second end is connected to the keyboard section/1, 5/, to the auxiliary part/4/or to the cover/3/by means of cam joint/12/, the cam follower/16/of the cam/15/or the slide block/17/of the guide/18/and a rotary joint/9/or a ball joint/8/are located always not at the rotation axis of the part they are fitted to. |
| 14. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover 131 and the keyboard section/1,5/consists of a lever/14/one of the ends of which is connected to the cover/3/by means of a cam joint/12/and the second to the keyboard section/1, 5/or to the auxiliary part/4/by means of a cam joint/12/, too, the lever/14/being mounted at device case/2/by means of one degree of freedom mounting or by means of two degree of freedom mounting in case the keyboard movable section/1/is movable at approximately horizontal plane, this second degree of freedom is eliminated by a guiding of the keyboard movable section/1/or of the auxiliary part/4/for determining the vertical position or the tilt of the keyboard movable section/1/. |
| 15. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1,5/consists of a lever/14/one of the ends of which is connected to the cover/3/pivotably about an axis that is approximately parallel to the cover/3/rotation axis and slidingly along this axis and the second end to the keyboard section/1, 5/or to the auxiliary part/4/pivotably about and slidingly along an axis approximately parallel to the keyboard movable section ! 1/ or auxiliary part/4 ! rotation axis, or there is a rotary translating joint/11/at one end and a ball joint/8/at the other end of the lever/14/, if the keyboard movable section 111 or. the auxiliary part/4/is approximately straightly sliding approximately parallelly to the cover 131 rotation axis, the lever/14/and the cover/3/must be connected by means of the ball joint/8/, if the keyboard movable section/1/or the auxiliary part /4/is straightly sliding approximately perpendicularly to the cover/3/rotation axis and <BR> <BR> horizontally or the keyboard fixed section 151 is to be connected the lever/14/can be connected<BR> to the cover/3/by means of a rotary joint/9/and to the keyboard movable section/1/or to the auxiliary part/4/by means of a translation guideway/10/vertically, or to the keyboard fixed section/5/perpendicularly to the cover 131 rotation axis and horizontally. |
| 16. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3 and the keyboard section/1, 5/consists of two levers/14/one of which is connected to the cover/3/pivotably about an axis that is approximately perpendicular to the cover 131 rotation axis and the second to the keyboard section/1, 5/or to the auxiliary part/4/ pivotably about an axis approximately perpendicular to the keyboard movable section/1/or auxiliary part 141 rotation axis, or if the keyboard movable section/1/or the auxiliary part/4/is approximately straightly sliding the lever/14/is connected pivotably about an approximately vertical axis to it or if the keyboard fixed section/5/is to be connected then the lever/14/is connected pivotably about an axis approximately perpendicular to the cover/3/rotation axis and horizontal and the levers/14/are mutually connected by means of a ball joint/8/. |
| 17. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard movable section 111 consists of a thread transmission, a thread of which is created at the cover/3/, this thread being full or segmental and either outer, the bolt/27/, or inner, the nut/28/, so that the thread axis is identical with cover/3/rotation axis and the second member of the thread couple is geared with the first one, this thread, again, being full or segmental and connected to keyboard movable section/1/or to the auxiliary part/4/ rigidly, vertically displacably or tiltably in case the keyboard movable section/1/or the auxiliary part 141 is approximately straightly sliding along the cover/3/rotation axis, or pivotably about an axis approximately parallel to the keyboard movable section/1/or the auxiliary part/4/rotation axis, optionally slidingly along this axis, or the second member of the thread couple can be connected to the keyboard movable section/1/or to the auxiliary part/4/by means of a ball joint /8/or a cam joint/12/and to be led at the translation guideway/10/at the device case/2/, its revolving and optionally tilting being disabled by means of this translation guideway/10/. |
| 18. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard movable section 111 consists of two members one of which is a bar/24/connected to the cover/3/by means of a cam joint/12/, a ball joint/8/or a rotary joint/9/with an axis parallel to the cover/3/rotation axis, this bar/24/having at its second end radial projections/26/that are geared with helical slots/20/at a hub/25/connected to and coaxial with the keyboard movable section/1/or with the auxiliary part/4/, or the arrangement can be inversed, i. e. the hub/25/being connected to the cover/3/and the bar/24/being fitted to the keyboard movable section/11 or to the auxiliary part/4/and if the bar/24/is fitted to the cover/3/by means of the ball joint/8/or by means of the cam joint/12/it must be led at the translation guideway/10/at the device case/2/, its revolving and optionally tilting being disabled by means of this translation guideway/10/. |
| 19. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard movable section 111 consists of a pair of complete or segmentshaped gears of which a worm, conical, hypoid or spiral gearing consists the pinion/29/ of which that can have deleted some of teeth, or the worm/31/, is fixed to the cover/3/so that it is coaxial with cover/3/rotation axis and the axis of the toothed wheel/30/, or of the worm wheel/32/optionally made as a lever/14/with a sheave/34/, is identical with the keyboard movable section 111 or the auxiliary part/4/rotation axis and the toothed wheel 130/, or the worm wheel/32/optionally made as a lever/14/with a sheave/34/is fitted to the keyboard movable section 11/or to the auxiliary part/4/rigidly in case the keyboard movable section/1/or the auxiliary part 141 rotation axis is approximately horizontal and rigidly or slidingly if this axis is approximately vertical. |
| 20. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover 131 and the keyboard section/1, 5/consists of a pair of complete or segment shaped gears of which a spur gearing consists the pinion/29/of which that can have deleted some of teeth is fixed to the cover/3/so that it is coaxial with cover 131 rotation axis and the toothed wheel/30/the axis of which is identical with the keyboard section/1, 5/or the auxiliary part 141 rotation axis is fixed to the keyboard section/1,5/or to the auxiliary part/4/. |
| 21. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1,5/consists of a rack gearing with straight or helical teeth the pinion/29/of which, that can have deleted some of teeth or to be made as a toothed segment, is fixed to the cover/3/so that it is coaxial with cover/3/rotation axis and to the keyboard section/1, 5/or to the auxiliary part/4/a toothed rack/33/is connected, this toothed rack/33/being mounted at the device case/2/slidingly along its axis only or vertically displacably or led at an eye/19/or at a rotarytranslating joint/11/at a place under the pinion /29/and slightly tiltable about an axis approximately perpendicular to cover/3/rotation axis or about an axis approximately perpendicular to the toothed rack/33/teeth front profile plane and connected to the keyboard section/1,5/or to the auxiliary part/4/rigidly, vertically displacably or tiltably in case the keyboard section/1, 5/or the auxiliary part 141 is approximately straightly sliding, or pivotably about an axis approximately parallel to the keyboard movable section/1/or the auxiliary part/4/rotation axis, optionally slidingly along this axis or tiltably about an axis approximately perpendicular to it, or the toothed rack/33/can be connected to keyboard movable section/1/or to the auxiliary part/4/by means of a ball joint/8/or a cam joint/12/. |
| 22. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1,5/is based on a toothed pliable component/36/, i. e. a chain or a toothed belt the driving pulley/3 8/of which, that can have deleted some teeth, is fixed to the cover/3/so that its axis is identical with cover 131 rotation axis and the driven pulley /39/is fitted to the keyboard section/1, 5/or to the auxiliary part/4/rigidly in case the keyboard section/1, 5/or the auxiliary part/4/rotation axis is approximately horizontal and rigidly or slidingly if this axis is approximately vertical, if the driven pulley/39/rotation orientation shall be opposite to that of the driving pulley/38/the toothed pliable component/36/must be able to work at twisted or slightly transversely bent state, too, the same in case the pulley axes are not parallel, in such case the toothed pliable component/36/is led across sheaves/34/or sliders/40/. |
| 23. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover 131 and the keyboard section/1, 5/or of the keyboard movable section/11 and the keyboard fixed section/5/consists of cables/37/, one or two in case the keyboard section/1, 5/vertical displacement or tilting is controlled through them, orin other casesof two that are fitted to the cover/3/or keyboard movable section/1/at one end and to the keyboard section/1, 5/or auxiliary part/4/at the other, always not at the part rotation axis, the cables/37/can be fitted to the pivotable parts by means of the sheaves/34/that are unrevolvably fitted to these parts, the cables/37/being fitted to the sheaves/34/and can be coiled several times around them and in case the keyboard movable section/1/or the auxiliary part 141 is approximately straightly sliding or in case the keyboard section/1, 5/vertical displacement or tilting is bound with the cover/3/or the keyboard movable section/1/and the keyboard fixed section 151 are bound together by means of the cables/37/at least one of the cables/37/is led across a sheave/34/, a slider/40/or a doublearm lever/14/. |
| 24. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/or the keyboard fixed section 151 and the keyboard movable section/1/ consists of a torsionally stiff and pliable component/41/fitted to the cover/3/or to the keyboard fixed section/5/at one end and to the keyboard movable section/1/or to the auxiliary part/4/at the other end. |
| 25. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover 131 and the keyboard movable section 111 consists of two fully or partially circular plates/49/or of the first plate/49/and the bar/24/, the first plate/49/being fixed to the cover/3/so that its rotation axis is identical with that of the cover/3/and the second is unrevolvably fitted to keyboard movable section/1/or to the auxiliary part/4/, the rotation axis of the keyboard movable section/1/or auxiliary part/4/, with which the second plate/49/ rotation axis is identical, being approximately perpendicular to the cover 131 rotation axis, the bar /24/being sliding approximately along the cover 131 rotation axis and connected to the keyboard movable section/1/or to the auxiliary part/4/that is approximately straightly sliding along the cover 131 rotation axis, the second plate/49/or the bar/24 lying at a plane containing the cover<BR> /3/rotation axis or that is parallel and close to the cover 131 rotation axis or such that the angle between this plane and the cover 131 rotation axis is small and their intersection point is close to the plates/49/, and the second plate/49/or the bar/24/is connected to the elastic component /3 5/, both the plates/49/or the bar/24/and the first plate/49/having such cut/50/at their perimeters that the circular edge of the neighboring plate/49/or the bar/24/edge is able to pass through the cut/50/. |
| 26. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/consists of two fully or partially circular plate /49/or of the first plate/49/and the bar/24/, the first plate/49/being fixed to the cover/3/so that its rotation axis is identical with that of the cover 131 and the second is fitted unrevolvably to keyboard section/1,5/or to the auxiliary part/4/, the bar/24/being sliding approximately horizontally and connected to the keyboard section/1, 5/or to the auxiliary part/4/that is approximately straightly sliding, the second plate/49/or the bar 124/lying so far from the first plate/49/that the plate/49/perimeters or the first plate/49/and the bar/24/perimeters have no intersection and the second plate/49/or the bar/24/is connected to the elastic component/35/, the plate/49/circular edges or the first plate/49/circular edge and the bar/24/edge having cuts /50/at their perimeters for the ends of the lever/14/that is mounted at the device case/2/at such mounting with one degree of freedom that when one end of the lever/14/is supported at the plate/49/circular edge or at the bar/24/edge its second end is at the cut/50/at the opposite plate/49/or at the bar/24/, or the first plate/49/has a projection/26/at its perimeter, the projection/26/shape being such that when one end of the lever/14/is supported at the first plate /49/circular edge the lever/14/second end is at the cut/50/at the opposite plate/49/circular edge or at the bar/24/edge and when one end of the lever/14/is supported at the projection/26/ at the first plate/49/circular perimeter the lever/14/second end is out of the cut/50/at the second circular plate/49/or at the bar/24/. |
| 27. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard movable section 111 consists in the connection of a shaft /42/that is approximately horizontal and connected to the cover 131 rigidly or through the transmission/43/, at which the cover/3/rotations are multiplied and optionally their orientation reversed, to a shaft/42/connected rigidly or radially slidingly and/or pivotably to the keyboard movable section/1/, always not at the rotation axis of each of both parts, by means of a cam joint /12/, a ball joint/8/or a Cardan joint/22/, the joint being kinematically arranged so that during all the turning of the shaft/42/connected to the cover/3/or at least during some phase of it not only the keyboard movable section 111 turn angle is dependent on the turn angle of the shaft/42/ connected to cover/3/but also keyboard movable section 111 vertical position. |
| 28. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein it contains two support surfaces/51/, one of them being at the device case/2/and the second at the keyboard movable section/1/or at the auxiliary part/4/, these support surfaces/51/being segmented or having cutouts and can be in contact and the maximum possible distance or angular distance between the rear edge of the support surface/5 1/located at the movable part and the front edge of the support surface/51/located at the device case/2/relatively to the direction of the keyboard movable section/1/motion towards the operation position is approximately equal to the value of the keyboard movable section/1/approximately horizontal translation or rotation and at the keyboard movable section/1/plan operation position, the approximately vertical distance of the keyboard movable section/11 or the auxiliary part/4/and the device case/2/is not less than the keyboard movable section/1/vertical displacement in case the keyboard movable section/1/is vertically displacable, or the angular distance of the keyboard movable section 111 or the auxiliary part/4/and the device case 121 relatively to the keyboard movable section/1/tilt axis is not less than the keyboard movable section/1/tilt angle in case the keyboard movable section 111 is tiltable. |
| 29. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the mounting of the keyboard movable section/1/or of the auxiliary part/4/that is pivotable about an axis that is approximately perpendicular to the cover 131 rotation axis is done by means of a Cardan joint/22/so that the keyboard movable section/1/is mounted at the auxiliary part/4/ pivotably about an axis approximately perpendicular to the cover/3/rotation axis, the auxiliary part/4/being mounted at the device case/2/pivotably about an axis approximately parallel to the cover/3/rotation axis or the keyboard movable section/1/is mounted at the auxiliary part/4/ pivotably about an axis that is approximately parallel to the cover/3/rotation axis when both the keyboard movable section/1/and the auxiliary part/4/are at the operation position, the auxiliary part/4/being mounted at the device case/2/pivotably about an axis that is approximately perpendicular to the cover 131 rotation axis. |
| 30. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein at the keyboard movable section/1/, there is approximately straight or circular translation guideway /10/that is ended with approximately vertically displacable segment or a vertical pin/21/ mounted at device case/2/, or with a segment approximately tiltable about an axis approximately parallel to the cover 131 rotation axis or a pin/21/of the same direction fitted at the device case /2/, or with a segment displacable along a circular arc that lies at a plane that is approximately perpendicular to the cover/3/rotation axis or a pin/21/mounted at the device case/2/, its axis being a circular arc that lies at a plane that is approximately perpendicular to the cover/3/ rotation axis and at the translation guideway/10/there is a slide block/17/optionally having a hole/55/that is connected with the keyboard movable section/1/and is sliding at the translation guideway/10/along its axis and the mechanism contains a member connected to keyboard movable section/1/or to the slide block/17/connected to keyboard movable section/1/or to the displacable or tiltable segment of the translation guideway/10/, the member being linked to the cover/3/or to the device case/2/and optionally the mechanism contains an elastic component /35/connected to the translation guideway/10/displacable or tiltable segment or connectable to the slide block/17/or the mechanical lock of the empty displacable or tiltable segment position or of the keyboard movable section/1/position. |
| 31. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein an approximately straightly sliding keyboard movable section/1/is fitted to a slide block/17/that is only sliding at a Tor Lshaped slot/20/that is approximately parallel to the direction of the keyboard movable section/1/plan motion and has a widened lower part inclined downwards at its outer end and the slide block/17/has a projection/26/at the bottom, the projection/26/being wider than the upper part of the slot/20/and the slide block/17/shape when viewed perpendicularly to the slot/20/axis and horizontally is a rhomboid, the angle between the rhomboid inclined walls and a horizontal plane being the same as the angle of the slot/20/lower part inclination downwards and the slide block/17/horizontal wall length is by the necessary clearance smaller than the distance between the upper and the lower surface of the slot/20/ inclined lower part measured at a horizontal plane and near the slot/20/an auxiliary part/4/is located, the auxiliary part/4/being only sliding along the same or nearly the same direction as that of the slot/20/inclined lower part and having an approximately horizontal pin/21/for which the respective opening is at the slide block/17/. |
| 32. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein a keyboard movable section/1/that is pivotable about an approximately vertical axis is fitted to a slide block/17/that is only sliding at a Tor Lshaped slot/20/that is approximately circular and created around the keyboard movable section l11 rotation axis and has a widened lower part inclined downwards at one its end and the slide block/17/has a projection/26/at the bottom, the projection/26/being wider than the upper part of the slot/20/and the slide block/17/shape when viewed at the cylindric section the axis of which is identical with the keyboard movable section/1/rotation axis is a rhomboid, the angle between the rhomboid inclined walls and a horizontal plane being the same as the angle of the slot/20/lower part inclination downwards and the slide block/17/inclined front surfaces, same as the upper and lower surfaces of the slot /20/widened part, are helical surfaces and the arc length of the horizontal walls of the slide block /17/is by the necessary clearance smaller than the length of the arcs from the upper to the lower surface of the slot/20/inclined lower part measured at a horizontal plane and near the slot/20/ an auxiliary part/4/is located, the auxiliary part/4/being pivotable and sliding along the same or nearly the same helicoid as the slot/20/inclined lower part axis is and having an approximately horizontal pin/21/for which the respective opening is at the slide block/17/. |
| 33. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein an inclined surface/56/or a helical surface/57/is created at the place of contact between the keyboard movable section 11/mounted at the auxiliary part/4/and the device case/2/or the <BR> <BR> keyboard fixed section/5/for binding together the approximately horizontal motion of the<BR> keyboard movable section 11/and approximately vertical displacement of the keyboard section /1, 5/, or the keyboard section/1, 5/tilting. |
| 34. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard movable section/1/or the auxiliary part/4/is connected with the device case/2/by means of the bar/24/that is connected with the cover/3/and sliding approximately along the direction of the straightly sliding keyboard movable section/11 or auxiliary part 141 motion direction or pivotable approximately about the keyboard movable section 11/or auxiliary part/4/ rotation axis that is approximately vertical and this bar/24/is connected to the keyboard movable section/1/or to the auxiliary part/4/so that it is sliding along its own axis or. pivotable about an approximately vertical axis and approximately vertically displacable or tiltable about an axis that is approximately parallel to the cover/3/rotation axis, all this relatively to the keyboard movable section/1/or the auxiliary part/4/, the bar/24/having an inclined surface/56/or a helical surface/57/at its end, this surface being approximately identical with the surface that is at the keyboard movable section 111 or the auxiliary part/4/, or a projection/26/and the distance of the ends of the inclined surface/56/or helical surface/57/or projection/26/at the bar/24/is less than the distance of the surfaces at the keyboard movable section/1/or at the auxiliary part /4/located opposite to the ends of the surface at the bar/24/, the distance of the surfaces at approximately straightly sliding keyboard movable section/1/or at the auxiliary part/4/is higher than that of the surfaces at the bar/24/by such value of the bar/24/translation relatively to the keyboard movable section/1/or to the auxiliary part/4/that results at the demanded value of the keyboard movable section/1/or auxiliary part/4/vertical displacement or tilting after transmission through a couple of the inclined surfaces/56/or helical surfaces/57/or a couple of the surface and the projection/26/, or the angular distance of the surfaces at the keyboard movable section/1/or the auxiliary part/4/pivotable about approximately vertical axis is higher than that of the surfaces at the bar/24/by such value of the bar/24/rotation relatively to the keyboard movable section/1/or to the auxiliary part 141 that results at the demanded value of the keyboard movable section/1/or auxiliary part/4/vertical displacement or tilting after transmission through a couple of the inclined surfaces/56/or helical surfaces/57/, next, the distance or angular distance of the surfaces at the keyboard movable section/1/or at the auxiliary part/4/is higher by the clearance that is necessary from the technology aspect, an elastic component/35/can be connected between the keyboard movable section/1/or the auxiliary part 14/and the bar/24/, or the arrangement can be opposite, i. e. the projection/26/is at the keyboard movable section 111 or the auxiliary part/4/and the inclined surface/56/or the helical surface/57/with the higher distance of the ends is at the bar/24/. |
| 35. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein approximately straightly sliding keyboard movable section/1/is fitted to at least one lever/14/ pivotably about an axis that is approximately perpendicular to the direction of the keyboard movable section 111 approximately straight motion and horizontal or to at least two levers/14/by means of ball joints/8/or by means of some combination of these arrangements, the levers/14/ being mounted pivotably about axes that are approximately perpendicular to the direction of the keyboard movable section 111 approximately straight motion and horizontal at one or more auxiliary part/4/sliding at the same direction as the keyboard movable section 111 is and are connected to the cover/3/by means of any link for the connection between the cover/3/and a straightly sliding keyboard movable section/1/and there are projections/26/at the levers/14/ near their mounting at the auxiliary part or parts/4/, either under or above the lever/14/ mounting rotation axis and at the value of keyboard movable section 111 translation from the transportation position towards the operation position that is less than maximum or equal to it and at least such that the vertical distance between the keyboard movable section 111 and the device case 121 and keyboard fixed section/5/is higher than the keyboard movable section/1/ vertical displacement value these projections/26/are in contact with a surface of the device case /2/stated for it, the lever/141 and the auxiliary part or parts/4/being connected by means of an elastic component/35/if the keyboard movable section/1/is above keyboard fixed section/5/at the transportation state. |
| 36. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein approximately straightly sliding keyboard movable section 111 is fitted to at least one lever/14/ pivotably about an axis that is approximately perpendicular to the direction of the keyboard movable section 111 approximately straight motion and horizontal or to at least two levers/14/by means of ball joints/8/or by means of some combination of these arrangements, the levers/14/ being mounted pivotably about axes that are approximately perpendicular to the direction of the keyboard movable section 111 approximately straight motion and horizontal at one or more auxiliary part/4/sliding at the same direction as the keyboard movable section/1/is and are connected to the cover/3/by means of any link for the connection between the cover 131 and a straightly sliding keyboard movable section 111 and there are projections/26/at the levers/14/ near their mounting at the auxiliary part or parts/4/, either under or above the lever/14/ mounting rotation axis and at the value of keyboard movable section 111 translation from the transportation position towards the operation position that is at least zero and maximum such that the vertical distance between the keyboard movable section 11/and the device case/2/and keyboard fixed section/5/is higher than the keyboard movable section 111 vertical displacement value these projections/26/are in contact with a surface of the device case/2/stated for it, the lever/14/and the auxiliary part or parts/4/being connected by means of an elastic component /35/if the keyboard movable section/1/is under keyboard fixed section/5/at the transportation state. |
| 37. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard section/1,5/is tiltable about an axis approximately parallel to the cover/3/rotation axis by means of the scissors mechanism the arms/7/of which are located at a plane approximately perpendicular to the cover/3/rotation axis, one arm 171 being fitted to the keyboard movable section/1/at one its end and at the other end to an approximately straightly sliding auxiliary part/4/at which also the second arm/7/is mounted, this second arm/7/being pivotably connected to the first arm/7/at approximately half of its length, one of the arms/7/ being mounted at approximately straightly sliding auxiliary part/4/spherically or pivotably about an axis that is approximately parallel to the cover/3/rotation axis and the second at a slot /20/pivotably and slidingly approximately perpendicularly to the cover/3/rotation axis and the keyboard movable section 111 is mounted at the abovementioned straightly sliding auxiliary part /4/, one of the joints between the keyboard movable section/1/and the arm/7/and between the keyboard movable section/1/and the straightly sliding auxiliary part/4/being a ball joint/8/or a rotary joint/9/with an axis approximately parallel to the cover/3/rotation axis and the other pivotable and approximately straightly sliding at the slot/20/that is approximately perpendicular to the cover 131 rotation axis, or the keyboard movable section 111 is mounted at the device case /2/, in such case it is also sliding approximately along cover/3/rotation axis and the position of an end of at least one arm/7/that is pivotable or spherical or pivotable and sliding at the slot/20/ is controlled by means of a connection of this end to the cover/3/or to the device case/2/and in case of the keyboard fixed section/5/tilt control the shorter arm/7/is pivotably connected to the cover/3/and fitted to the keyboard fixed section 151 and to the device case/2/. |
| 38. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard section/1,5/is tiltable about an axis approximately parallel to the cover/3/rotation axis by means of the scissors mechanism the arms/7/of which are located at the plane approximately parallel to the cover/3/rotation axis, one arm 171 being fitted spherically or pivotably about an axis that is approximately perpendicular to the cover/3/rotation axis to the keyboard movable section/1/at one its end and at the other end pivotably and slidingly at a slot /20/that is approximately parallel to the cover/3/rotation axis, the slot/20/being made at an approximately straightly sliding auxiliary part/4/and the joints at the ends of the second arm/7/ are arranged inversely, the arms/7/being pivotably connected together at approximately halves of their lengths, the keyboard movable section 111 being mounted at the abovementioned approximately straightly sliding auxiliary part/41 pivotably about an axis that is approximately parallel to the cover/3/rotation axis and optionally slidingly horizontally and perpendicularly to this axis or at the device case/2/in the same way and slidingly approximately parallelly to the cover 131 rotation axis and the position of an end of at least one arm/7/that is pivotable or spherical or pivotable and sliding at the slot/20/is controlled by means of a connection of this end to the cover/3/or to the device case/2/and in case of the keyboard fixed section/5/tilt control the arms/7/are fitted to the device case 121 and the sliding end controlled by means of a connection to the cover/3/. |
| 39. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard section/1,5/is approximately vertically displacable or sliding approximately parallelly to the cover 131 rotation axis by means of the scissors mechanism one arm/7/of which is fitted at one its end to the keyboard movable section/11 pivotably about an axis approximately perpendicular to the scissors mechanism arm 171 plane and at the other end slidingly at a slot/20/ that lies approximately at this plane and is made at an approximately straightly sliding auxiliary part/4/or at the device case/2/and the joints at the ends of the second arm/7/are arranged inversely, the arms/7/being pivotably connected together at approximately halves of their lengths and the position of an end of at least one arm/7/that is pivotable or sliding at the slot /20/is controlled by means of a connection of this end to the cover/3/or to the device case/2/ and in case of the keyboard fixed section/5/vertical displacement control the arms/7/are fitted at the device case/2/and the sliding end is pivotably connected to the cover/3/in case the scissors mechanism lies approximately at the plane perpendicular to the cover/3/rotation axis or by some other way in case the scissors mechanism lies approximately at the plane parallel to the cover/3/rotation axis. |
| 40. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard fixed section 151 is vertically displacable by means of one or more members, their points of application at the keyboard fixed section 151 being located at approximately uniform distance from the cover 131 rotation axis, the members being connected to the cover/3/and the mechanism contains the keyboard fixed section 151 guiding at the device case/2/. |
| 41. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard fixed section 151 is vertically displacable by means of two or more members, their points of application at the keyboard fixed section/5/being located at at least two significantly different distances from the cover/3/rotation axis, the members being connected to the cover/3/, the keyboard fixed section/5/being horizontally led at the device case/2/by them or the mechanism contains a guiding of the keyboard fixed section/5/at the device case/2/and in case the members are located so that their points of application lie approximately at a single plane perpendicular to the cover/3/rotation axis, the mechanism also contains a guiding of the keyboard fixed section 151 at the device case/2/in order to disable its tilting. |
| 42. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard fixed section/5/is tiltable about an axis that is approximately parallel to the cover/3/ rotation axis by means of at least one member connected to the cover/3/. |
| 43. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein an elastic component/35/is connected at the link of the cover/3/and the keyboard movable section /1/or of the cover/3/and the keyboard fixed section 151 or at the link of the keyboard movable section/1/and the keyboard fixed section/5/. |
| 44. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard movable section/1/and the keyboard fixed section/5/are bound together by means of an optionally divisible transmission of the keyboard movable section/1/approximately vertical displacement or tilting about an axis approximately parallel to the cover/3/rotation axis and the keyboard fixed section/5/approximately vertical displacement or tilting about an axis approximately parallel to the cover/3/rotation axis. |
| 45. | Mechanism for unfolding and folding of folding keyboards as in claim 44, wherein one member of a rotary joint/9/is made at the keyboard movable section/1/tiltable about an axis approximately parallel to the cover/3/rotation axis and the second member of a rotary joint/9/is made at the keyboard fixed section/5/tiltable about an axis approximately parallel to the cover /3/rotation axis, this member at the keyboard fixed section/5/being located approximately at the end of the trajectory of the rotary joint/9/member at the keyboard movable section/1/. |
| 46. | Mechanism for unfolding and folding of folding keyboards as in claim 44, wherein members of rotary joints/9/with axes approximately parallel to the cover/3/rotation axis are made at the keyboard movable section 111 vertically displacable or tiltable about an axis approximately parallel to the cover/3/rotation axis and at the keyboard fixed section/5/vertically displacable or tiltable about an axis approximately parallel to the cover/3/rotation axis, the members of the rotary joints/9/that are made at the ends of a rod/13/being respective to the members made at the keyboard section/1, 5/, the rod/13/being mounted at the keyboard fixed section 151 so that the member of the rotary joint/9/to the keyboard movable section/1/at the rod/13/is located approximately at the end of the trajectory of this rotary joint/9/member located at the keyboard movable section/1/or in case the rod/13/is mounted at the keyboard movable section/1/the rotary joint/9/member at the keyboard fixed section/5/is located approximately at the end of the trajectory of this rotary joint/9/member located at the rod/13/, in both cases the rod/13/can be mounted by means of one rotary joint/9/that is assembled permanently. |
| 47. | Mechanism for unfolding and folding of folding keyboards as in claim 44, wherein both at the keyboard movable section/11 vertically displacable or tiltable about an axis approximately parallel to the cover 131 rotation axis and at the keyboard fixed section/5/vertically displacable or tiltable about an axis approximately parallel to the cover/3/rotation axis, one member of a rotary joint/9/with an axis approximately parallel to the cover/3/rotation axis or of a rotary translating joint/11/, that can be made as a projection/26/at an eye/19/or at a slot/20/, or of a cam joint/12/is made, the second members of these joints being located at ends of a lever/14/ mounted at the device case/2/or at an auxiliary part/4/at which the keyboard movable section /11 is mounted, the lever/14/being mounted pivotably and optionally slidingly if its arms are movable approximately at a plane perpendicular to the cover/3/rotation axis or the lever/14/is mounted pivotably, spherically, at a Cardan joint, pivotably and slidingly or led at an eye/19/if its arms are movable approximately at a plane parallel to the cover/3/rotation axis, the members of the joints that are made at a keyboard section/1,5/being located approximately at the ends of the trajectories of the members of the joints located at the lever/14/, one of the joints can be assembled permanently. |
| 48. | Mechanism for unfolding and folding of folding keyboards as in claim 44, wherein pulleys /38, 39/ of a transmission with a toothed pliable component/3 6/are mounted pivotably about axes approximately parallel to the cover/3/rotation axis at the device case/2/or at the auxiliary part/4/at which the keyboard movable section 11/tiltable about an axis approximately parallel to the cover 131 rotation axis is mounted, one pulley/38, 39/ being fixed to the keyboard section/1, 5/and one member of an unrevolvable joint being made at the other, the second member being located at the keyboard fixed section 151 approximately at the trajectory end of the joint member made at the pulley/38, 39/ in case the pulleys/38, 39/ are mounted at the auxiliary part/4/, or the unrevolvable joint member at the pulley/38, 39/ is located approximately at the trajectory end of this joint member made at the keyboard movable section/1/in case the pulleys/38, 39/ are mounted at the device case/2/. |
| 49. | Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1,5/consists of any combination of the joints mentioned at the foregoing claims that can be combined with hydraulic, pneumatic or electromechanic joints, the keyboard section/1,5/can be linked not only with the cover/3/but also with other movable parts. |
| 50. | Mechanism for unfolding and folding of folding keyboards as in claim 3 to 49, wherein the spring accumulator consists of one or more elastic component/35/that can be an axial spring connected to the cover/3/not at its rotation axis, lying approximately at a plane perpendicular to the cover/3/rotation axis or approximately parallel to the cover 131 rotation axis and connected to the cover/3/by means of a translation to rotation transmission, a torsion spring, or any elastic component/3 5/connected to the cover/3/either directly or through some suitable mechanism. |
| 51. | Mechanism for unfolding and folding of folding keyboards as in claim 50, wherein the cover /3/is connected to the elastic component/35/, the elastic component/35/second end being fitted at the device case/2/so that its position relatively to the device case 121 is constant. |
| 52. | Mechanism for unfolding and folding of folding keyboards as in claim 50, wherein the cover /3/is connected to the elastic component/35/, the elastic component/35/second end being fitted at the device case/2/so that its position is changeable relatively to the device case/2/either manually by the user or automatically by means of a small electric motor, either directly or through some suitable control component. |
| 53. | Mechanism for unfolding and folding of folding keyboards as in claim 52, wherein the control component the position of the elastic component/3 5/end is changeable with is a cam /15/, the elastic component/35/end being supported at the cam/15/curved surface or led at a slot/20/at the cam/15/, the elastic component/35/end can optionally be mounted at the device case/2/so that it is only or predominantly movable approximately perpendicularly to the direction of an approximately straightly sliding cam/15/or at approximately radial plane or approximately parallelly to the axis of a pivotable cam/15/. |
| 54. | Mechanism for unfolding and folding of folding keyboards as in claim 52, wherein the control component the position of the elastic component/35/end mounted at the device case/2/ is changeable with is a cam follower/16/of a cam/15/or a slide block/17/of a guide/18/, mounted at the device case/2/by means of one degree of freedom mounting and connected to the elastic component/35/end spherically, pivotably about an axis approximately perpendicular to its motion plane or the elastic component/35/is supported at the cam follower/16/or at the slide block/17/. |
| 55. | Mechanism for unfolding and folding of folding keyboards as in claim 52, wherein the control component the position of the elastic component 1351 end mounted at the device case/2/ is changeable with is a worm wheel/32/or a lever/14/with a sheave/34/controlled by a worm /31/, both the members of the worm gearing being pivotably mounted at the device case/2/and the worm wheel/32/or the lever/14/with the sheave/34/is directly connected to the torsion spring end or to the end of some other pivotable member connected to the elastic component/35/ end or to the end of an axial spring through the transmission of a rotation to a translation. |
| 56. | Mechanism for unfolding and folding of folding keyboards as in claim 52, wherein the control component the position of the elastic component/35/end mounted at the device case/2/ is changeable with is one member of a thread transmission, this member being mounted at the device case/2/slidingly and connected to the axial spring end or to the end of some other sliding member connected to the elastic component/35/end or to the end of a torsion spring through the transmission of a translation to a rotation, the second member of a thread transmission being mounted at the device case/2/pivotably. |
| 57. | Mechanism for unfolding and folding of folding keyboards as in claim 52, wherein the control component the position of the elastic component/3 5/end mounted at the device case/2/ is changeable with is a hub/25/with helical slots/20/or a bar/24/with radial projections/26/ that are geared with the helical slots/20/at the hub/25/, the hub/25/or the bar/24/being pivotably mounted at the device case/2/and connected to the torsion spring end or to the end of some other pivotable member connected to the elastic component/35/end or to the end of an axial spring through the transmission of a rotation to a translation, the second member of the couple being mounted at the device case/2/movably approximately along its axis. |
| 58. | Mechanism for unfolding and folding of folding keyboards as in claim 52, wherein the control component the position of the elastic component/35/end mounted at the device case/2/ is changeable with is a lever/14/mounted at the device case/2/pivotably about an axis that is approximately perpendicular to the elastic component/35/end motion plane or direction, the lever/14/being connected through a cam joint/12/, spherically or pivotably about the axis approximately parallel to the axis of the lever/14/rotation to the elastic component/3 5/end, the lever/14/mounting being equipped with end stops and optionally with a lock. |
| 59. | Mechanism for unfolding and folding of folding keyboards as in claim 50, wherein the cover /3/is connected to two elastic components/35/, the first elastic component/35/second end is fitted at the device case/2/and the second elastic component/3 5/second end is fitted at an end block/58/that is lockable at the device case/2/and can be relocated manually by the user or automatically by means of a small electric motor within the range corresponding with the difference between the end block/58/positions respective to the transportation configuration and operation configuration of the device. |
| 60. | Mechanism for unfolding and folding of folding keyboards as in claim 50, wherein the cover /3/is connected to two elastic components/35/, the first elastic component/3 5/second end is fitted at the device case/2/and the second elastic component/3 5/second end is fitted at an end block/58/that is lockable at the device case/2/and connectable to the cover/3/through a lock when the second elastic component/35/length or angular length is the same as at the device operation configuration and at the same time the end block/58/locked at the device case/2/or the same as at the device transportation configuration and when the end block/ 8/released from the device case/2/this connection can be kept, the end block/58/can be relocated manually by the user or automatically by means of a small electric motor within the range corresponding with the difference between the positions of the end block/58/connected to the cover/3/by means of the lock that are respective to the transportation configuration and operation configuration of the device, the lock is unlockable when the end block/58/motion direction is towards the position at which the end block/58/is lockable at the device case/2/. |
| 61. | Mechanism for unfolding and folding of folding keyboards as in claims 6 to 60, wherein it contains pins/21/automatically extractable or swivelling out from the device case/2/into the keyboard movable section/1/or vice versa, the pins/21/being retractable or swivelling in manually by the user or automatically and the respective holes/55/or niches being made at the keyboard movable section/1/or at the device case/2/for the pins/21/. |
| 62. | Mechanism for unfolding and folding of folding keyboards as in claims 6 to 61, wherein it contains pins/21/automatically extractable or swivelling out from the keyboard section/1, 5/to the position under folding hand rest and retractable or swivelling in manually by user or automatically. |
| 63. | Mechanism for unfolding and folding of folding keyboards as in claims 7 to 62, wherein the cover/3/is pivotably mounted at a double rotary hinge/6/that is pivotably mounted at the. device case/2/, the axes of the rotary joints/9/between the double rotary hinge/6/and the cover /3/and between the double rotary hinge/6/and the device case/2/being approximately parallel and the double rotary hinge/6/being connected to the keyboard movable section/1/or to some other movable parts. |
| 64. | Mechanism for unfolding and folding of folding keyboards as in claim 63, wherein the cover /3/is connected to the device case/2/by means of a pliable component, e. g. a cable/37/, that is led across the cover/3/, the device case/2/and optionally across the double rotary hinge/6/. |
| 65. | Mechanism for unfolding and folding of folding keyboards as in claims 7 to 62, wherein the cover/3/is pivotably mounted at the device case/21 and an auxiliary part/4/is pivotably mounted at the device case/2/coaxially with the cover/3/, the auxiliary part 141 being connected to the keyboard movable section/1/and optionally to. some other movable parts, the cover/3/ being connected to the auxiliary part/4/by means of a slide block/17/or a pin/21/the axis of which lies approximately at the plane that contains the cover 131 rotation axis, the slide block/17/ or the pin/21/can be split. AMENDED CLAIMS [received by the International Bureau on 27 November 2003 (27.11. 03); original claims 165 replaced by amended claims 166 (13 pages)] Claims +STATEMENT 1. Mechanism for unfolding and tolling ot folding Keyboards of portal) le computers and other similar devices with a folding keyboard at which at least one keyboard movable section/1/lies above or under the keyboard fixed section 151 at the device transportation configuration so that the plan outline of the keyboard movable section/1/is fully enclosed at the plan outline of the keyboard fixed section/5/and a tiltable cover/3/optionally containing a display, wherein the cover/3/and at least one keyboard movable section/1/and/or keyboard fixed section/5/are connected by means of a mechanical link for both horizontal and vertical moving the keyboard movable section/1/and/or for vertical moving the keyboard fixed section/5/. |
| 66. | 2 Mechanism for unfolding and folding of folding keyboards as in claim 1 wherein said mechanism contains an auxiliary part/4/at which the keyboard movable section/1/is mounted and relatively to which it is vertically displacable or tiltable about an axis that is approximately parallel to the cover/3/rotation axis, this auxiliary part/4/being movable relatively to the device case/2/. |
| 67. | 3 Mechanism for unfolding and folding of folding keyboards as in claims 1 and 2 wherein said mechanism contains folding hand rests connected to the cover/3/or to the keyboard movable section/1/by means of a mechanical link. |
| 68. | 4 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 3 wherein said mechanism contains a deformation energy spring accumulator connected to the cover/3/or to the keyboard movable section/1/and to the device case/2/or to the keyboard fixed section/5/. |
| 69. | 5 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 4 wherein the cover/3/or the keyboard movable section/1/is connected to at least one electric motor. |
| 70. | 6 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 5 wherein said mechanism contains friction members or mechanical locks connectable to the keyboard section /1, 5/or to the folding hand rests, either directly or through some other movable part, e. g. the cover/3/. |
| 71. | 7 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 6, wherein the angle between the plane of the cover/3/and the plane of keyboard fixed section/5/, i. e. the cover /3/tilt angle, is changeable without affecting the position and function of other movable parts of the device. |
| 72. | 8 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 7, wherein the cover/3/is automatically tiltable towards its closed position independently of the cover/3/tilt angle value, a mechanical centrifugal brake or a viscous brake being optionally connected to the pivotable mounting of the cover/3/and/or of the cover/3/double rotary hinge/6/pivotably mounted at the device case/2/, cover/3/being pivotably mounted at the said double rotary hinge /6/, said brake being connected to device case/2/and its brake effect progressively increasing with the cover/3/or the cover/3/double rotary hinge/6/rotation angular speed and progressively decreasing with decreasing of the angular speed. |
| 73. | 9 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and of the keyboard section/1,5/consists of a rotary joint/9/between the cover/3/and the keyboard section/1, 5/or an auxiliary part/4/, the rotary joint/9/axis being parallel to the cover/3/rotation axis and the keyboard section/1, 5/or an auxiliary part/4/is mounted either at an arm/7/pivotably mounted at the device case/2/, the axes of each rotary joint/9/being parallel to the cover/3/rotation axis, or led through an eye/19/or at a rotary translating joint/11/at the device case/2/, optionally at least one of the links of the keyboard section/1,5/, the cover/3/and device case/2/is made as at least two ball joints/8/with the centers lying at the line parallel to the cover 131 rotation axis. |
| 74. | 10 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and of the keyboard section/1, 5/consists of a ball joint/8/between the cover/3/and the keyboard section/1,5/or an auxiliary part/4/. |
| 75. | 11 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and of the keyboard section/1, 5/consists of a rod/13/spherically fitted to the cover/3/at one end and to the keyboard section/1, 5/or to an auxiliary part/4/at the other end and in case of the keyboard section/1,5/or an auxiliary part/4/being mounted pivotably about an axis parallel to the cover/3/rotation axis or straightly slidingly perpendicularly to the cover/3/rotation axis the rod/13/can be fitted to the keyboard section/1, 5/or to an auxiliary part/4/and/or to the cover/3/by means of rotary joints/9/with axes parallel to the cover/3/ rotation axis. |
| 76. | 12 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/consists of a cam joint/12/one of the members of which, i. e. a cam/15/, cam follower/16/, guide/18/, slide block/17/or bar/24/is fixed to the cover/3/and the other is fixed to the keyboard section/1, 5/or to the auxiliary part /4/, the cam follower/16/being always fitted to a part so that it does not lie at part rotation axis and the cam/15/trajectory lies approximately on the lateral area of the cylinder the axis of which is coincident with the cover/3/rotation axis in case the keyboard movable section/1/or the auxiliary part/4/is approximately linearly translating parallelly to the cover/3/rotation axis, at the plane perpendicular to the cover/3/rotation axis in case the keyboard movable section/1/or the auxiliary part/4/is movable at the plane perpendicular to the cover/3/rotation axis or if the keyboard fixed section 151 is linked and in case of the keyboard movable section/1/or the auxiliary part/4/being mounted pivotably the cam/15/trajectory is created approximately on the surface created with basic curve rotation about the rotation axis of the part at which the cam /15/trajectory is created, the basic curve being a circular arc identical with the cam follower/16/ motion trajectory between its limit positions. |
| 77. | 13 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/consists of a lever/14/one of the ends of which is spherically or pivotably connected to the cover/3/or to the keyboard section/1, 5/or to the auxiliary part/4/, the lever/14/being led at an eye/19/or a rotarytranslating joint/11/or a translation guideway/10/at the device case/2/, or spherically or pivotably fitted to an arm/7/ that is spherically or pivotably mounted at the device case/2/and the lever/14/second end is connected to the keyboard section/1, 5/, to the auxiliary part/4/or to the cover/3/by means of cam joint/12/, the cam follower/16/of the cam/15/or the slide block/17/of the guide/18/and a rotary joint/9/or a ball joint/8/are located always not at the rotation axis of the part they are fitted to. |
| 78. | 14 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/consists of a lever/14/one of the ends of which is connected to the cover/3/by means of a cam joint/12/and the second to the keyboard section/1, 5/or to the auxiliary part/4/by means of a cam joint/12/, too, the lever/14/being mounted at device case/2/by means of one degree of freedom mounting or by means of two degree of freedom mounting in case the keyboard movable section/1/is movable at approximately horizontal plane, this second degree of freedom is eliminated by a guiding of the keyboard movable section/1/or of the auxiliary part/4/for determining the vertical position or the tilt of the keyboard movable section/1/. |
| 79. | 15 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/consists of a lever/14/one of the ends of which is connected to the cover 131 pivotably about an axis that is approximately parallel to the cover/3/rotation axis and slidingly along this axis and the second end to the keyboard section/1, 5/or to the auxiliary part/4/pivotably about and slidingly along an axis approximately parallel to the keyboard movable section/1/or auxiliary part/4/rotation axis, or there is a rotary translating joint/11/at one end and a ball joint/8/at the other end of the lever/14/, if the keyboard movable section/1/or the auxiliary part/4/is approximately straightly sliding approximately parallelly to the cover/3/rotation axis, the lever/14/and the cover/3/must be connected by means of the ball joint/8/, if the keyboard movable section/1/or the auxiliary part /4/is straightly sliding approximately perpendicularly to the cover/3/rotation axis and horizontally or the keyboard fixed section 151 is to be connected the lever/14/can be connected to the cover/3/by means of a rotary joint/9/and to the keyboard movable section/1/or to the auxiliary part/4/by means of a translation guideway/10/vertically, or to the keyboard fixed section/5/perpendicularly to the cover/3/rotation axis and horizontally. |
| 80. | 16 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/consists of two levers/14/one of which is connected to the cover/3/pivotably about an axis that is approximately perpendicular to the cover/3/rotation axis and the second to the keyboard section/1, 5/or to the auxiliary part/4/ pivotably about an axis approximately perpendicular to the keyboard movable section/1/or auxiliary part/4/rotation axis, or if the keyboard movable section/1/or the auxiliary part/4/is approximately straightly sliding the lever/14/is connected pivotably about an approximately vertical axis to it or if the keyboard fixed section/5/is to be connected then the lever/14/is connected pivotably about an axis approximately perpendicular to the cover/3/rotation axis and horizontal and the levers/14/are mutually connected by means of a ball joint/8/. |
| 81. | 17 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard movable section 111 consists of a thread transmission, a thread of which is created at the cover/3/, this thread being full or segmental and either outer, the bolt/27/, or inner, the nut/28/, so that the thread axis is identical with cover/3/rotation axis and the second member of the thread couple is geared with the first one, this thread, again, being full or segmental and connected to keyboard movable section/1/or to the auxiliary part/4/ rigidly, vertically displacably or tiltably in case the keyboard movable section/1/or the auxiliary part/4/is approximately straightly sliding along the cover/3/rotation axis, or pivotably about an axis approximately parallel to the keyboard movable section/1/or the auxiliary part/4/rotation axis, optionally slidingly along this axis, or the second member of the thread couple can be connected to the keyboard movable section/1/or to the auxiliary part/4/by means of a ball joint /8/or a cam joint/12/and to be led at the translation guideway/10/at the device case/2/, its revolving and optionally tilting being disabled by means of this translation guideway/10/. |
| 82. | 18 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard movable section 111 consists of two members one of which is a bar/24/connected to the cover/3/by means of a cam joint/12/, a ball joint 181 or a rotary joint/9/with an axis parallel to the cover/3/rotation axis, this bar/24/having at its second end radial projections/26/that are geared with helical slots/20/at a hub/25/connected to and coaxial with the keyboard movable section/1/or with the auxiliary part/4/, or the arrangement can be inversed, i. e. the hub/25/being connected to the cover/3/and the bar/24/being fitted to the keyboard movable section/1/or to the auxiliary part/4/and if the bar/24/is fitted to the cover/3/by means of the ball joint/8/or by means of the cam joint/12/it must be led at the translation guideway/10/at the device case/2/, its revolving and optionally tilting being disabled by means of this translation guideway/10/. |
| 83. | 19 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard movable section 111 consists of a pair of complete or segmentshaped gears of which a worm, conical, hypoid or spiral gearing consists the pinion/29/ of which that can have deleted some of teeth, or the worm/31/, is fixed to the cover/3/so that it is coaxial with cover/3/rotation axis and the axis of the toothed wheel/30/, or of the worm wheel/32/optionally made as a lever/14/with a sheave/34/, is identical with the keyboard movable section/1/or the auxiliary part/4/rotation axis and the toothed wheel/30/, or the worm wheel/32/optionally made as a lever/14/with a sheave/34/is fitted to the keyboard movable section/1/or to the auxiliary part/4/rigidly in case the keyboard movable section/1/or the auxiliary part/4/rotation axis is approximately horizontal and rigidly or slidingly if this axis is approximately vertical. |
| 84. | 20 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/consists of a pair of complete or segment shaped gears of which a spur gearing consists the pinion/29/of which that can have deleted some of teeth is fixed to the cover/3/so that it is coaxial with cover/3/rotation axis and the toothed wheel/30/the axis of which is identical with the keyboard section/1, 5/or the auxiliary part/4/rotation axis is fixed to the keyboard section/1, 5/or to the auxiliary part/4/. |
| 85. | 21 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/consists of a rack gearing with straight or helical teeth the pinion/29/of which, that can have deleted some of teeth or to be made as a toothed segment, is fixed to the cover/3/so that it is coaxial with cover/3/rotation axis and to the keyboard section/1, 5/or to the auxiliary part/4/a toothed rack/33/is connected, this toothed rack/33/being mounted at the device case/2/slidingly along its axis only or vertically displacably or led at an eye/19/or at a rotarytranslating joint/11/at a place under the pinion /29/and slightly tiltable about an axis approximately perpendicular to cover/3/rotation axis or about an axis approximately perpendicular to the toothed rack/33/teeth front profile plane and connected to the keyboard section/1, 5/or to the auxiliary part/4/rigidly, vertically displacably or tiltably in case the keyboard section/1, 5/or the auxiliary part/4/is approximately straightly sliding, or pivotably about an axis approximately parallel to the keyboard movable section/1/or the auxiliary part/4/rotation axis, optionally slidingly along this axis or tiltably about an axis approximately perpendicular to it, or the toothed rack/33/can be connected to keyboard movable section/1/or to the auxiliary part/4/by means of a ball joint/8/or a cam joint/12/. |
| 86. | 22 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/is based on a toothed pliable component/36/, i. e. a chain or a toothed belt the driving pulley/38/of which, that can have deleted some teeth, is fixed to the cover/3/so that its axis is identical with cover/3/rotation axis and the driven pulley /39/is fitted to the keyboard section/1, 5/or to the auxiliary part/4/rigidly in case the keyboard section/1, 5/or the auxiliary part/4/rotation axis is approximately horizontal and rigidly or slidingly if this axis is approximately vertical, if the driven pulley/39/rotation orientation shall be opposite to that of the driving pulley/38/the toothed pliable component/36/must be able to work at twisted or slightly transversely bent state, too, the same in case the pulley axes are not parallel, in such case the toothed pliable component/36/is led across sheaves/34/or sliders/40/. |
| 87. | 23 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/or of the keyboard movable section/1/and the keyboard fixed section 151 consists of cables/37/, one or two in case the keyboard section/1, 5/vertical displacement or tilting is controlled through them, orin other casesof two that are fitted to the cover/3/or keyboard movable section/1/at one end and to the keyboard section/1, 5/or auxiliary part/4/at the other, always not at the part rotation axis, the cables/37/can be fitted to the pivotable parts by means of the sheaves/34/that are unrevolvably fitted to these parts, the cables/37/being fitted to the sheaves/34/and can be coiled several times around them and in case the keyboard movable section/1/or the auxiliary part/4/is approximately straightly sliding or in case the keyboard section/1, 5/vertical displacement or tilting is bound with the cover/3/or the keyboard movable section 111 and the keyboard fixed section/5/are bound together by means of the cables/37/at least one of the cables/37/is led across a sheave/34/, a slider/40/or a doublearm lever/14/. |
| 88. | 24 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/or the keyboard fixed section/5/and the keyboard movable section/1/ consists of a torsionally stiff and pliable component/41/fitted to the cover/3/or to the keyboard fixed section 151 at one end and to the keyboard movable section/1/or to the auxiliary part/4/at the other end. |
| 89. | 25 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard movable section 111 consists of two fully or partially circular plates/49/or of the first plate/49/and the bar/24/, the first plate/49/being fixed to the cover/3/so that its rotation axis is identical with that of the cover/3/and the second is unrevolvably fitted to keyboard movable section/1/or to the auxiliary part/4/, the rotation axis of the keyboard movable section/1/or auxiliary part/4/, with which the second plate/49/ rotation axis is identical, being approximately perpendicular to the cover 131 rotation axis, the bar /24/being sliding approximately along the cover/3/rotation axis and connected to the keyboard movable section/1/or to the auxiliary part/4/that is approximately straightly sliding along the cover/3/rotation axis, the second plate/49/or the bar/24/lying at a plane containing the cover /3/rotation axis or that is parallel and close to the cover/3/rotation axis or such that the angle between this plane and the cover/3/rotation axis is small and their intersection point is close to the plates/49/, and the second plate/49/or the bar/24/is connected to the elastic component /35/, both the plates/49/or the bar/24/and the first plate/49/having such cut/50/at their perimeters that the circular edge of the neighboring plate/49/or the bar/24/edge is able to pass through the cut/50/. |
| 90. | 26 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/consists of two fully or partially circular plate /49/or of the first plate/49/and the bar/24/, the first plate/49/being fixed to the cover/3/so that its rotation axis is identical with that of the cover/3/and the second is fitted unrevolvably to keyboard section/1,5/or to the auxiliary part/4/, the bar/24/being sliding approximately horizontally and connected to the keyboard section/1, 5/or to the auxiliary part/4/that is approximately straightly sliding, the second plate/49/or the bar/24/lying so far from the first plate/49/that the plate/49/perimeters or the first plate/49/and the bar/24/perimeters have no intersection and the second plate/49/or the bar/24/is connected to the elastic component/35/, the plate/49/circular edges or the first plate/49/circular edge and the bar/24/edge having cuts /50/at their perimeters for the ends of the lever/14/that is mounted at the device case/2/at such mounting with one degree of freedom that when one end of the lever/14/is supported at the plate/49/circular edge or at the bar/24/edge its second end is at the cut/50/at the opposite plate/49/or at the bar/24/, or the first plate/49/has a projection/26/at its perimeter, the projection/26/shape being such that when one end of the lever/14/is supported at the first plate /49/circular edge the lever/14/second end is at the cut/50/at the opposite plate/49/circular edge or at the bar/24/edge and when one end of the lever/14/is supported at the projection/26/ at the first plate/49/circular perimeter the lever/14/second end is out of the cut/50/at the second circular plate/49/or at the bar/24/. |
| 91. | 27 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard movable section 111 consists in the connection of a shaft /42/that is approximately horizontal and connected to the cover/3/rigidly or through the transmission/43/, at which the cover/3/rotations are multiplied and optionally their orientation reversed, to a shaft/42/connected rigidly or radially slidingly and/or pivotably to the keyboard movable section/1/, always not at the rotation axis of each of both parts, by means of a cam joint /12/, a ball joint 181 or a Cardan joint/22/, the joint being kinematically arranged so that during all the turning of the shaft/42/connected to the cover/3/or at least during some phase of it not only the keyboard movable section/1/turn angle is dependent on the turn angle of the shaft/42/ connected to cover/3/but also keyboard movable section 111 vertical position. |
| 92. | 28 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein it contains two support surfaces/51/, one of them being at the device case/2/and the second at the keyboard movable section/1/or at the auxiliary part/4/, these support surfaces/51/being segmented or having cutouts and can be in contact and the maximum possible distance or angular distance between the rear edge of the support surface/ 1/located at the movable part and the front edge of the support surface/51/located at the device case/2/relatively to the direction of the keyboard movable section 111 motion towards the operation position is approximately equal to the value of the keyboard movable section 111 approximately horizontal translation or rotation and at the keyboard movable section 111 plan operation position, the approximately vertical distance of the keyboard movable section/1/or the auxiliary part/4/and the device case/2/is not less than the keyboard movable section 111 vertical displacement in case the keyboard movable section/1/is vertically displacable, or the angular distance of the keyboard movable section/1/or the auxiliary part/4/and the device case/2/relatively to the keyboard movable section/1/tilt axis is not less than the keyboard movable section 111 tilt angle in case the keyboard movable section 111 is tiltable. |
| 93. | 29 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the mounting of the keyboard movable section/1/or of the auxiliary part/4/that is pivotable about an axis that is approximately perpendicular to the cover/3/rotation axis is done by means of a Cardan joint/22/so that the keyboard movable section/1/is mounted at the auxiliary part/4/ pivotably about an axis approximately perpendicular to the cover 131 rotation axis, the auxiliary part/4/being mounted at the device case/2/pivotably about an axis approximately parallel to the cover/3/rotation axis or the keyboard movable section/1/is mounted at the auxiliary part/4/ pivotably about an axis that is approximately parallel to the cover/3/rotation axis when both the keyboard movable section/1/and the auxiliary part/4/are at the operation position, the auxiliary part/4/being mounted at the device case/2/pivotably about an axis that is approximately perpendicular to the cover/3/rotation axis. |
| 94. | 30 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein at the keyboard movable section/1/, there is approximately straight or circular translation guideway /10/that is ended with approximately vertically displacable segment or a vertical pin/21/ mounted at device case/2/, or with a segment approximately tiltable about an axis approximately parallel to the cover/3/rotation axis or a pin/21/of the same direction fitted at the device case /2/, or with a segment displacable along a circular arc that lies at a plane that is approximately perpendicular to the cover/3/rotation axis or a pin/21/mounted at the device case/2/, its axis being a circular arc that lies at a plane that is approximately perpendicular to the cover/3/ rotation axis and at the translation guideway/10/there is a slide block/17/optionally having a hole/55/that is connected with the keyboard movable section/1/and is sliding at the translation guideway/10/along its axis and the mechanism contains a member connected to keyboard movable section/1/or to the slide block/17/connected to keyboard movable section/1/or to the displacable or tiltable segment of the translation guideway/10/, the member being linked to the cover/3/or to the device case/2/and optionally the mechanism contains an elastic component /35/connected to the translation guideway/10/displacable or tiltable segment or connectable to the slide block/17/or the mechanical lock of the empty displacable or tiltable segment position or of the keyboard movable section 111 position. |
| 95. | 31 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein an approximately straightly sliding keyboard movable section/1/is fitted to a slide block/17/that is only sliding at a Tor Lshaped slot/20/that is approximately parallel to the direction of the keyboard movable section 111 plan motion and has a widened lower part inclined downwards at its outer end and the slide block/17/has a projection/26/at the bottom, the projection/26/being wider than the upper part of the slot/20/and the slide block/17/shape when viewed perpendicularly to the slot/20/axis and horizontally is a rhomboid, the angle between the rhomboid inclined walls and a horizontal plane being the same as the angle of the slot/20/lower part inclination downwards and the slide block/17/horizontal wall length is by the necessary clearance smaller than the distance between the upper and the lower surface of the slot/20/ inclined lower part measured at a horizontal plane and near the slot/20/an auxiliary part/4/is located, the auxiliary part/4/being only sliding along the same or nearly the same direction as that of the slot/20/inclined lower part and having an approximately horizontal pin/21/for which the respective opening is at the slide block/17/. |
| 96. | 32 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein a keyboard movable section/1/that is pivotable about an approximately vertical axis is fitted to a slide block/17/that is only sliding at a Tor Lshaped slot/20/that is approximately circular and created around the keyboard movable section 111 rotation axis and has a widened lower part inclined downwards at one its end and the slide block/17/has a projection/26/at the bottom, the projection/26/being wider than the upper part of the slot/20/and the slide block/17/shape when viewed at the cylindric section the axis of which is identical with the keyboard movable section 111 rotation axis is a rhomboid, the angle between the rhomboid inclined walls and a horizontal plane being the same as the angle of the slot/20/lower part inclination downwards and the slide block/17/inclined front surfaces, same as the upper and lower surfaces of the slot /20/widened part, are helical surfaces and the arc length of the horizontal walls of the slide block /17/is by the necessary clearance smaller than the length of the arcs from the upper to the lower surface of the slot/20/inclined lower part measured at a horizontal plane and near the slot/20/ an auxiliary part/4/is located, the auxiliary part/4/being pivotable and sliding along the same or nearly the same helicoid as the slot/20/inclined lower part axis is and having an approximately horizontal pin/21/for which the respective opening is at the slide block/17/. |
| 97. | 33 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein an inclined surface/56/or a helical surface/57/is created at the place of contact between the keyboard movable section/1/mounted at the auxiliary part/4/and the device case/2/or the keyboard fixed section/5/for binding together the approximately horizontal motion of the keyboard movable section/1/and approximately vertical displacement of the keyboard section /1, 5/, or the keyboard section/1,5/tilting. |
| 98. | 34 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard movable section/1/or the auxiliary part/4/is connected with the device case/2/by means of the bar/24/that is connected with the cover/3/and sliding approximately along the direction of the straightly sliding keyboard movable section/1/or auxiliary part/4/motion direction or pivotable approximately about the keyboard movable section/1/or auxiliary part/4/ rotation axis that is approximately vertical and this bar/24/is connected to the keyboard movable section/1/or to the auxiliary part/4/so that it is sliding along its own axis or pivotable about an approximately vertical axis and approximately vertically displacable or tiltable about an axis that is approximately parallel to the cover/3/rotation axis, all this relatively to the keyboard movable section/1/or the auxiliary part/4/, the bar/24/having an inclined surface/56/or a helical surface/57/at its end, this surface being approximately identical with the surface that is at the keyboard movable section/1/or the auxiliary part/4/, or a projection/26/and the distance of the ends of the inclined surface/56/or helical surface/57/or projection/26/at the bar/24/is less than the distance of the surfaces at the keyboard movable section/1/or at the auxiliary part /4/located opposite to the ends of the surface at the bar/24/, the distance of the surfaces at approximately straightly sliding keyboard movable section/1/or at the auxiliary part/4/is higher than that of the surfaces at the bar/24/by such value of the bar/24/translation relatively to the keyboard movable section/1/or to the auxiliary part/4/that results at the demanded value of the keyboard movable section/1/or auxiliary part/4/vertical displacement or tilting after transmission through a couple of the inclined surfaces/56/or helical surfaces/57/or a couple of the surface and the projection/26/, or the angular distance of the surfaces at the keyboard movable section/1/or the auxiliary part/4/pivotable about approximately vertical axis is higher than that of the surfaces at the bar/24/by such value of the bar/24/rotation relatively to the keyboard movable section/1/or to the auxiliary part/4/that results at the demanded value of the keyboard movable section/1/or auxiliary part/4/vertical displacement or tilting after transmission through a couple of the inclined surfaces/56/or helical surfaces/57/, next, the distance or angular distance of the surfaces at the keyboard movable section/1/or at the auxiliary part/4/is higher by the clearance that is necessary from the technology aspect, an elastic component/35/can be connected between the keyboard movable section/1/or the auxiliary part/4/and the bar/24/, or the arrangement can be opposite, i. e. the projection/26/is at the keyboard movable section/1/or the auxiliary part/4/and the inclined surface/56/or the helical surface/57/with the higher distance of the ends is at the bar/24/. |
| 99. | 35 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein approximately straightly sliding keyboard movable section/1/is fitted to at least one lever/14/ pivotably about an axis that is approximately perpendicular to the direction of the keyboard movable section 111 approximately straight motion and horizontal or to at least two levers/14/by means of ball joints/8/or by means of some combination of these arrangements, the levers/14/ being mounted pivotably about axes that are approximately perpendicular to the direction of the keyboard movable section 111 approximately straight motion and horizontal at one or more auxiliary part/4/sliding at the same direction as the keyboard movable section/1/is and are connected to the cover/3/by means of any link for the connection between the cover/3/and a straightly sliding keyboard movable section/1/and there are projections/26/at the levers/14/ near their mounting at the auxiliary part or parts/4/, either under or above the lever/14/ mounting rotation axis and at the value of keyboard movable section 111 translation from the transportation position towards the operation position that is less than maximum or equal to it and at least such that the vertical distance between the keyboard movable section/1/and the device case/2/and keyboard fixed section 151 is higher than the keyboard movable section/1/ vertical displacement value these projections/26/are in contact with a surface of the device case /2/stated for it, the lever/14/and the auxiliary part or parts/4/being connected by means of an elastic component/35/if the keyboard movable section/1/is above keyboard fixed section 151 at the transportation state. |
| 100. | 36 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein approximately straightly sliding keyboard movable section/1/is fitted to at least one lever/14/ pivotably about an axis that is approximately perpendicular to the direction of the keyboard movable section/1/approximately straight motion and horizontal or to at least two levers/14/by means of ball joints/8/or by means of some combination of these arrangements, the levers/14/ being mounted pivotably about axes that are approximately perpendicular to the direction of the keyboard movable section 111 approximately straight motion and horizontal at one or more auxiliary part/4/sliding at the same direction as the keyboard movable section/1/is and are connected to the cover/3/by means of any link for the connection between the cover/3/and a straightly sliding keyboard movable section/1/and there are projections/26/at the levers/14/ near their mounting at the auxiliary part or parts/4/, either under or above the lever/14/ mounting rotation axis and at the value of keyboard movable section 111 translation from the transportation position towards the operation position that is at least zero and maximum such that the vertical distance between the keyboard movable section/1/and the device case/2/and keyboard fixed section/5/is higher than the keyboard movable section 111 vertical displacement value these projections/26/are in contact with a surface of the device case/2/stated for it, the lever/14/and the auxiliary part or parts/4/being connected by means of an elastic component /35/if the keyboard movable section/1/is under keyboard fixed section 151 at the transportation state. |
| 101. | 37 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard section/1, 5/is tiltable about an axis approximately parallel to the cover 131 rotation axis by means of the scissors mechanism the arms/7/of which are located at a plane approximately perpendicular to the cover/3/rotation axis, one arm/7/being fitted to the keyboard movable section/1/at one its end and at the other end to an approximately straightly sliding auxiliary part/4/at which also the second arm/7/is mounted, this second arm/7/being pivotably connected to the first arm/7/at approximately half of its length, one of the arms/7/ being mounted at approximately straightly sliding auxiliary part/4/spherically or pivotably about an axis that is approximately parallel to the cover/3/rotation axis and the second at a slot /20/pivotably and slidingly approximately perpendicularly to the cover/3/rotation axis and the keyboard movable section/1/is mounted at the abovementioned straightly sliding auxiliary part /4/, one of the joints between the keyboard movable section 111 and the arm/7/and between the keyboard movable section/1/and the straightly sliding auxiliary part/4/being a ball joint/8/or a rotary joint/9/with an axis approximately parallel to the cover/3/rotation axis and the other pivotable and approximately straightly sliding at the slot/20/that is approximately perpendicular to the cover/3/rotation axis, or the keyboard movable section/1/is mounted at the device case /2/, in such case it is also sliding approximately along cover/3/rotation axis and the position of an end of at least one arm/7/that is pivotable or spherical or pivotable and sliding at the slot/20/ is controlled by means of a connection of this end to the cover/3/or to the device case/2/and in case of the keyboard fixed section 151 tilt control the shorter arm/7/is pivotably connected to the cover/3/and fitted to the keyboard fixed section/5/and to the device case/2/. |
| 102. | 38 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard section/1,5/is tiltable about an axis approximately parallel to the cover/3/rotation axis by means of the scissors mechanism the arms/7/of which are located at the plane approximately parallel to the cover 131 rotation axis, one arm/7/being fitted spherically or pivotably about an axis that is approximately perpendicular to the cover/3/rotation axis to the keyboard movable section/1/at one its end and at the other end pivotably and slidingly at a slot /20/that is approximately parallel to the cover/3/rotation axis, the slot/20/being made at an approximately straightly sliding auxiliary part/4/and the joints at the ends of the second arm/7/ are arranged inversely, the arms/7/being pivotably connected together at approximately halves of their lengths, the keyboard movable section 111 being mounted at the abovementioned approximately straightly sliding auxiliary part/4/pivotably about an axis that is approximately parallel to the cover/3/rotation axis and optionally slidingly horizontally and perpendicularly to this axis or at the device case/2/in the same way and slidingly approximately parallelly to the cover/3/rotation axis and the position of an end of at least one arm/7/that is pivotable or spherical or pivotable and sliding at the slot/20/is controlled by means of a connection of this end to the cover/3/or to the device case/2/and in case of the keyboard fixed section 151 tilt control the arms/7/are fitted to the device case/2/and the sliding end controlled by means of a connection to the cover/3/. |
| 103. | 39 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard section/1,5/is approximately vertically displacable or sliding approximately parallelly to the cover/3/rotation axis by means of the scissors mechanism one arm/7/of which is fitted at one its end to the keyboard movable section 111 pivotably about an axis approximately perpendicular to the scissors mechanism arm/7/plane and at the other end slidingly at a slot/20/ that lies approximately at this plane and is made at an approximately straightly sliding auxiliary part/4/or at the device case/2/and the joints at the ends of the second arm/7/are arranged inversely, the arms/7/being pivotably connected together at approximately halves of their lengths and the position of an end of at least one arm/7/that is pivotable or sliding at the slot /20/is controlled by means of a connection of this end to the cover/3/or to the device case/2/ and in case of the keyboard fixed section 151 vertical displacement control the arms/7/are fitted at the device case/2/and the sliding end is pivotably connected to the cover/3/in case the scissors mechanism lies approximately at the plane perpendicular to the cover/3/rotation axis or by some other way in case the scissors mechanism lies approximately at the plane parallel to the cover/3/rotation axis. |
| 104. | 40 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard fixed section/5/is vertically displacable by means of one or more members, their points of application at the keyboard fixed section/5/being located at approximately uniform distance from the cover/3/rotation axis, the members being connected to the cover/3/and the mechanism contains the keyboard fixed section/5/guiding at the device case/2/. |
| 105. | 41 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard fixed section 151 is vertically displacable by means of two or more members, their points of application at the keyboard fixed section 151 being located at at least two significantly different distances from the cover/3/rotation axis, the members being connected to the cover/3/, the keyboard fixed section 151 being horizontally led at the device case/2/by them or the mechanism contains a guiding of the keyboard fixed section/5/at the device case/2/and in case the members are located so that their points of application lie approximately at a single plane perpendicular to the cover/3/rotation axis, the mechanism also contains a guiding of the keyboard fixed section 151 at the device case/2/in order to disable its tilting. |
| 106. | 42 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard fixed section 151 is tiltable about an axis that is approximately parallel to the cover/3/ rotation axis by means of at least one member connected to the cover/3/. |
| 107. | 43 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein an elastic component/35/is connected at the link of the cover/3/and the keyboard movable section /1/or of the cover/3/and the keyboard fixed section 151 or at the link of the keyboard movable section/1/and the keyboard fixed section 151. |
| 108. | 44 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the keyboard movable section/1/and the keyboard fixed section 151 are bound together by means of an optionally divisible transmission of the keyboard movable section 111 approximately vertical displacement or tilting about an axis approximately parallel to the cover/3/rotation axis and the keyboard fixed section 151 approximately vertical displacement or tilting about an axis approximately parallel to the cover/3/rotation axis. |
| 109. | 45 Mechanism for unfolding and folding of folding keyboards as in claim 44, wherein one member of a rotary joint/9/is made at the keyboard movable section 111 tiltable about an axis approximately parallel to the cover/3/rotation axis and the second member of a rotary joint/9/is made at the keyboard fixed section/5/tiltable about an axis approximately parallel to the cover /3/rotation axis, this member at the keyboard fixed section/5/being located approximately at the end of the trajectory of the rotary joint/9/member at the keyboard movable section/1/. |
| 110. | 46 Mechanism for unfolding and folding of folding keyboards as in claim 44, wherein members of rotary joints/9/with axes approximately parallel to the cover/3/rotation axis are made at the keyboard movable section 111 vertically displacable or tiltable about an axis approximately parallel to the cover/3/rotation axis and at the keyboard fixed section 151 vertically displacable or tiltable about an axis approximately parallel to the cover/3/rotation axis, the members of the rotary joints/9/that are made at the ends of a rod/13/being respective to the members made at the keyboard section/1, 5/, the rod/13/being mounted at the keyboard fixed section 151 so that the member of the rotary joint/9/to the keyboard movable section/1/at the rod/13/is located approximately at the end of the trajectory of this rotary joint/9/member located at the keyboard movable section/1/or in case the rod/13/is mounted at the keyboard movable section/1/the rotary joint/9/member at the keyboard fixed section/5/is located approximately at the end of the trajectory of this rotary joint/9/member located at the rod/13/, in both cases the rod/13/can be mounted by means of one rotary joint/9/that is assembled permanently. |
| 111. | 47 Mechanism for unfolding and folding of folding keyboards as in claim 44, wherein both at the keyboard movable section 111 vertically displacable or tiltable about an axis approximately parallel to the cover/3/rotation axis and at the keyboard fixed section 151 vertically displacable or tiltable about an axis approximately parallel to the cover/3/rotation axis, one member of a rotary joint/9/with an axis approximately parallel to the cover/3/rotation axis or of a rotary translating joint/11/, that can be made as a projection/26/at an eye/19/or at a slot/20/, or of a cam joint/12/is made, the second members of these joints being located at ends of a lever/14/ mounted at the device case/2/or at an auxiliary part/4/at which the keyboard movable section /1/is mounted, the lever/14/being mounted pivotably and optionally slidingly if its arms are movable approximately at a plane perpendicular to the cover/3/rotation axis or the lever/14/is mounted pivotably, spherically, at a Cardan joint, pivotably and slidingly or led at an eye/19/if its arms are movable approximately at a plane parallel to the cover/3/rotation axis, the members of the joints that are made at a keyboard section/1, 5/being located approximately at the ends of the trajectories of the members of the joints located at the lever/14/, one of the joints can be assembled permanently. |
| 112. | 48 Mechanism for unfolding and folding of folding keyboards as in claim 44, wherein pulleys /38, 39/ of a transmission with a toothed pliable component/36/are mounted pivotably about axes approximately parallel to the cover/3/rotation axis at the device case/2/or at the auxiliary part/4/at which the keyboard movable section 111 tiltable about an axis approximately parallel to the cover/3/rotation axis is mounted, one pulley/38, 39/ being fixed to the keyboard section/1, 5/and one member of an unrevolvable joint being made at the other, the second member being located at the keyboard fixed section 151 approximately at the trajectory end of the joint member made at the pulley/38, 39/ in case the pulleys/38, 39/ are mounted at the auxiliary part/4/, or the unrevolvable joint member at the pulley/38, 39/ is located approximately at the trajectory end of this joint member made at the keyboard movable section/1/in case the pulleys/38, 39/ are mounted at the device case/2/. |
| 113. | 49 Mechanism for unfolding and folding of folding keyboards as in claims 1 to 8, wherein the link of the cover/3/and the keyboard section/1, 5/consists of any combination of the joints mentioned at the foregoing claims that can be combined with hydraulic, pneumatic or electromechanic joints, the keyboard section/1, 5/can be linked not only with the cover/3/but also with other movable parts. |
| 114. | 50 Mechanism for unfolding and folding of folding keyboards as in claim 3 to 49, wherein the spring accumulator consists of one or more elastic component/35/that can be an axial spring connected to the cover/3/not at its rotation axis, lying approximately at a plane perpendicular to the cover/3/rotation axis or approximately parallel to the cover/3/rotation axis and connected to the cover/3/by means of a translation to rotation transmission, a torsion spring, or any elastic component/35/connected to the cover/3/either directly or through some suitable mechanism. |
| 115. | 51 Mechanism for unfolding and folding of folding keyboards as in claim 50, wherein the cover /3/is connected to the elastic component/35/, the elastic component/35/second end being fitted at the device case/2/so that its position relatively to the device case/2/is constant. |
| 116. | 52 Mechanism for unfolding and folding of folding keyboards as in claim 50, wherein the cover /3/is connected to the elastic component/35/, the elastic component/35/second end being fitted at the device case/2/so that its position is changeable relatively to the device case/2/either manually by the user or automatically by means of a small electric motor, either directly or through some suitable control component. |
| 117. | 53 Mechanism for unfolding and folding of folding keyboards as in claim 52, wherein the control component the position of the elastic component/35/end is changeable with is a cam /15/, the elastic component/35/end being supported at the cam/15/curved surface or led at a slot/20/at the cam/151, the elastic component/35/end can optionally be mounted at the device case/2/so that it is only or predominantly movable approximately perpendicularly to the direction of an approximately straightly sliding cam/15/or at approximately radial plane or approximately parallelly to the axis of a pivotable cam/15/. |
| 118. | 54 Mechanism for unfolding and folding of folding keyboards as in claim 52, wherein the control component the position of the elastic component/35/end mounted at the device case/2/ is changeable with is a cam follower/16/of a cam/15/or a slide block/17/of a guide/18/, mounted at the device case/2/by means of one degree of freedom mounting and connected to the elastic component/35/end spherically, pivotably about an axis approximately perpendicular to its motion plane or the elastic component/35/is supported at the cam follower/16/or at the slide block/17/. |
| 119. | 55 Mechanism for unfolding and folding of folding keyboards as in claim 52, wherein the control component the position of the elastic component/35/end mounted at the device case/2/ is changeable with is a worm wheel/32/or a lever/14/with a sheave/34/controlled by a worm /31/, both the members of the worm gearing being pivotably mounted at the device case/2/and the worm wheel/32/or the lever/14/with the sheave/34/is directly connected to the torsion spring end or to the end of some other pivotable member connected to the elastic component/35/ end or to the end of an axial spring through the transmission of a rotation to a translation. |
| 120. | 56 Mechanism for unfolding and folding of folding keyboards as in claim 52, wherein the control component the position of the elastic component/35/end mounted at the device case/2/ is changeable with is one member of a thread transmission, this member being mounted at the device case/2/slidingly and connected to the axial spring end or to the end of some other sliding member connected to the elastic component/35/end or to the end of a torsion spring through the transmission of a translation to a rotation, the second member of a thread transmission being mounted at the device case/2/pivotably. |
| 121. | 57 Mechanism for unfolding and folding of folding keyboards as in claim 52, wherein the control component the position of the elastic component/35/end mounted at the device case/2/ is changeable with is a hub/25/with helical slots/20/or a bar/24/with radial projections/26/ that are geared with the helical slots/20/at the hub/25/, the hub/25/or the bar/24/being pivotably mounted at the device case/2/and connected to the torsion spring end or to the end of some other pivotable member connected to the elastic component/35/end or to the end of an axial spring through the transmission of a rotation to a translation, the second member of the couple being mounted at the device case/2/movably approximately along its axis. |
| 122. | 58 Mechanism for unfolding and folding of folding keyboards as in claim 52, wherein the control component the position of the elastic component/35/end mounted at the device case/2/ is changeable with is a lever/14/mounted at the device case/2/pivotably about an axis that is approximately perpendicular to the elastic component/35/end motion plane or direction, the lever/14/being connected through a cam joint/12/, spherically or pivotably about the axis approximately parallel to the axis of the lever/14/rotation to the elastic component/35/end, the lever/14/mounting being equipped with end stops and optionally with a lock. |
| 123. | 59 Mechanism for unfolding and folding of folding keyboards as in claim 50, wherein the cover /3/is connected to two elastic components/35/, the first elastic component/35/second end is fitted at the device case/2/and the second elastic component/35/second end is fitted at an end block/58/that is lockable at the device case/2/and can be relocated manually by the user or automatically by means of a small electric motor within the range corresponding with the difference between the end block/58/positions respective to the transportation configuration and operation configuration of the device. |
| 124. | 60 Mechanism for unfolding and folding of folding keyboards as in claim 50, wherein the cover /3/is connected to two elastic components/35/, the first elastic component/35/second end is fitted at the device case/2/and the second elastic component/35/second end is fitted at an end block/58/that is lockable at the device case/2/and connectable to the cover/3/through a lock when the second elastic component/35/length or angular length is the same as at the device operation configuration and at the same time the end block/58/locked at the device case/2/or the same as at the device transportation configuration and when the end block/58/released from the device case/2/this connection can be kept, the end block/58/can be relocated manually by the user or automatically by means of a small electric motor within the range corresponding with the difference between the positions of the end block/58/connected to the cover/3/by means of the lock that are respective to the transportation configuration and operation configuration of the device, the lock is unlockable when the end block/58/motion direction is towards the position at which the end block/58/is lockable at the device case/2/. |
| 125. | 61 Mechanism for unfolding and folding of folding keyboards as in claims 6 to 60, wherein it contains pins/21/automatically extractable or swivelling out from the device case/2/into the keyboard movable section/1/or vice versa, the pins/21/being retractable or swivelling in manually by the user or automatically and the respective holes/55/or niches being made at the keyboard movable section/1/or at the device case/2/for the pins/21/. |
| 126. | 62 Mechanism for unfolding and folding of folding keyboards as in claims 6 to 61, wherein it contains pins/21/automatically extractable or swivelling out from the keyboard section/1, 5/to the position under folding hand rest and retractable or swivelling in manually by user or automatically. |
| 127. | 63 Mechanism for unfolding and folding of folding keyboards as in claims 7 to 62, wherein the cover/3/is pivotably mounted at a double rotary hinge/6/that is pivotably mounted at the device case/2/, the axes of the rotary joints/9/between the double rotary hinge/6/and the cover /3/and between the double rotary hinge/6/and the device case/2/being approximately parallel and the double rotary hinge/6/being connected to the keyboard movable section/1/or to some other movable parts. |
| 128. | 64 Mechanism for unfolding and folding of folding keyboards as in claim 63, wherein the cover /3/is connected to the device case/2/by means of a pliable component, e. g. a cable/37/, that is led across the cover/3/, the device case/2/and optionally across the double rotary hinge/6/. |
| 129. | 65 Mechanism for unfolding and folding of folding keyboards as in claims 7 to 62, wherein the cover/3/is pivotably mounted at the device case/2/and an auxiliary part/4/is pivotably mounted at the device case/2/coaxially with the cover/3/, the auxiliary part/4/being connected to the keyboard movable section/1/and optionally to some other movable parts, the cover/3/ being connected to the auxiliary part/4/by means of a slide block/17/or a pin/21/the axis of which lies approximately at the plane that contains the cover/3/rotation axis, the slide block/17/ or the pin/21/can be split. |
| 130. | Mechanism for unfolding and folding of folding keyboards as in claims 25 and 26, wherein the keyboard movable section/1/and/or the auxiliary part/4/are fitted with an elastic component/35/that is in contact, direct or through some intermediate parts, with the cover/3/ during the cover/3/closing, the elastic component/35/characteristics being such that its moment acting at the cover/3/is of the same orientation as the orientation of the cover/3/ closing motion and higher than the sum of other moments acting at the cover/3/during closing if this sum is of the orientation opposite to the elastic component/35/moment orientation, the elastic component/35/being out of contact with the cover/3/during the cover/3/opening. Statement under Article 19 (1) I) Claim 1 amendment: not newly createdit origins from the"Summary of the invention" : the first paragraphthe terminology explanation, i. e. what the terms"keyboard movable section"and"keyboard fixed section"mean the second paragraph/first sentencethe description of the transportation configuration of the device my invention is aplicable to: the keyboard movable section being above or under the fixed sectionthis was not explicitly stated at the claim No. l as filed; now put in accordance. Also the drawings Nos. 1 to 6, showing examples of the devices my invention is applicable to, clearly show that the keyboard movable section is always above or under the keyboard fixed section when the device is at the transportation configuration. This amendment excludes any interference between my invention and that of 1) Mr. CloudU. S. Pat. No. 5588759first cited at the report as"X"that (claim 1) : considers the wrist rest (fixed) the essential part of the device: my inventionno mention of it considers at least part of at least one keyboard section being at the cavity under the fixed wrist rest at the transportation configurationi. e. not fully under or above the keyboard fixed section (in description, no fixed section considered), but also in front of it: for my invention the keyboard movable section considered fully above/under the fixed section at the transportation configuration, thus allowing the device to have much smaller plan dimensions than the cited. |
| 131. | Mr. RoylanceU. S. Pat. No. 5982612second cited at the report as"X"that (claim 1 and 3): considers two beltconnected keyboard sections (no fixed section) lying one above the other at the transportation position, both them movablethis could cause higher weight and lower stiffness: my inventionconsiders a large fixed section. the mechanical link of the cover and the keyboard sections (the object of my invention) not described in detail: one variant fully avoids it (electric motorno mechanical link), the other applies springno description of the springcover mechanical connection and the closing of the springdriven version not automatic (i. e. not oneaction only) three user actions necessary: partially cover closing/keyboard section ends pressing/cover closing: my inventionat the claim 1 the invention basic attribute explicitly defined : linking the cover and the keyboard section (s) movement during both cover opening and cover closingto avoid any unclearnesses that could consider springdriven variants (claims Nos. 25 and 26) closing now explicitly described at the: II) new claim 66: closing automatizationone variant; similar text should be added into the description; other variants also possiblee. g. application of the elastic component connected to the second circular plate/bar: the component end can be reconnectable for opening from the cover to the device case, or fixed to the cover. two new subdrawings: direct/indirect contact (springcover). |
Prior art The portable computer keyboard size is limited by its plane dimensions. The portable computers usually called notebook (plane dimensions approx. 20 cm x 30 cm) have the keyboards with a key arrangement different from that of a desktop computer keyboard. The user that works both at the desktop computer keyboard and at the portable computer one can become disoriented, press <BR> <BR> wrong keys, start unwanted action execution through hotkeys etc. , thus reducing the work speed and quality. At the portable computers usually called subnotebook (plane dimensions approx. 15 cm x 20 cm) the key spacing reduction is added-from the conventional 19 mm to the values around 15 mm. This very negatively affects especially the users that write very quickly (with ten fingers) and are used to the standard key spacing. The desktop computer keyboard without arrangement changes can be built at the portable computers usually called laptop-but these ones are large and their carrying is not comfortable. The same applies to other devices of a similar arrangement-e. g. projector displays fitted with a keyboard, portable network terminals and other ones at which a demand of small dimensions is connected with a need to give user a possibility of typing at the standard keyboard. The problem solution was a keyboard foldable for transportation into two layers but these keyboards were uncomfortable and not prompt at <BR> <BR> common operation-they needed tedious reconfiguration before and after using them and the key<BR> arrangement was not always identical with that of the desktop computer keyboard. Currently, the automatic keyboard reconfiguration was solved by IBM company only-see patent No. US 5 543 787-but this regards only the keyboard section movement at a single plane, the same both for the transportation and for the operation.
Summary of the invention The above-mentioned imperfection shall be eliminated through fitting the folding keyboard with the mechanism for its reconfiguration. The basis of this mechanism is the connection of the device cover optionally containing a display through some mechanical link to at least one keyboard movable section or parts this section is fitted at. By means of this mechanical link, the keyboard movable section is transferable both at horizontal and at vertical direction. If need be, the fixed keyboard section is connected to the cover through this mechanical connection-this fixed keyboard section is not transferable at the horizontal direction but can be slightly vertically displacable or tiltable about the axis approximately parallel to the cover rotation axis-i. e. to be movable at the vertical direction.
The mechanism is used for an automatic reconfiguration of the keyboard movable sections to the operation position by the side or in front of the keyboard fixed section during the device cover opening and to the transportation position above or under the keyboard fixed section during the cover closing to the transportation position. As the keyboard sections shall lie at the same plane at the operation state, in case the keyboard movable section located by the side of the keyboard fixed section, the keyboard fixed section shall be vertically displacable in case the- keyboard movable section is movable at the horizontal plane only and tiltable in case the keyboard movable section is movable at the approximately horizontal plane only and tiltable about the axis approximately parallel to the cover rotation axis, and in case the keyboard movable section located in front of the keyboard fixed section at least one of the couple the keyboard movable section and the keyboard fixed section shall be tiltable about the axis approximately parallel to the cover rotation axis in case the keyboard movable section is movable at the approximately horizontal plane only and of course the same rules are applicable to the keyboard movable section located at the operation state in front of the keyboard fixed section as the ones for the keyboard movable section located at the operation state by the side of the keyboard fixed section. Vertical displacement value or the angle value of tilt about the axes or axis approximately parallel to the cover rotation axis are chosen so as both the keyboard movable section and the keyboard fixed section lie approximately at the same plane at the operation position. This demand is met when the sum of the vertical displacements of the keyboard movable section and the keyboard fixed section is equal either to the keyboard movable section thickness if the keyboard movable section lies above the keyboard fixed section at the transportation position, or to the keyboard fixed section thickness if the keyboard movable section lies under the keyboard fixed section at the transportation position, at keyboard tiltable sections when the tilt angles of both the keyboard movable section and the keyboard fixed section are the same and the positions of the axes and the tilt orientations are arranged in order to meet the demand of both the keyboard movable section and the keyboard fixed section lying approximately at the same plane at the operation position. If the keyboard movable section lies in front of the keyboard fixed section at the operation position, the keyboard movable section and the keyboard fixed section tilt angles can be different or one of the sections is not tiltable at all and, subsequently, the keyboard sections do not lie at the same plane, but it is good when the section planes intersect at their common edge-i. e. at the keyboard fixed section front edge that is also the keyboard movable section rear edge. At the mechanism practical workmanship, the keyboard movable section vertical displacability or tiltability shall be applied especially in case of the keyboard movable section transferable from the transportation position to the operation position through the approximately horizontal motion only. This is valid when the keyboard movable section is pivotable about an approximately vertical axis or approximately straightly sliding parallelly or perpendicularly to the cover rotation axis. The mechanism controls either translation or rotation of the keyboard section.
Especially at the keyboard movable section transferable from the transportation position to the operation position through an approximately horizontal motion it is practical to fit it at an auxiliary part that is movable approximately horizontally only and relatively to which the keyboard movable section is vertically displacable or tiltable.
For user higher comfort during the work, the device can be equipped with folding hand rests and the above-mentioned mechanism supplied with mechanical link between cover or the keyboard movable section and the folding hand rest.
Folding hand rests are also automatically extended to the operation position during the device cover opening and automatically retracted to the transportation position during the device cover tilting to the closed position.
Next, to reduce the force needed from the user during transferring the big movable mass of the cover, the keyboard movable section and possible folding hand rests, retractable keys and cursor position devices, it is useful to supply the mechanism with a deformation energy spring accumulator connected at one end to the keyboard fixed section or device case and to the cover or the keyboard movable section at the other end.
This accumulator helps to transfer the device movable parts from the transportation position to the operation position and/or vice versa as at least part of the energy necessary to it is stored in it.
The supply of the energy necessary through little electric motors that are connected with the cover or the keyboard movable section can be considered at more luxury variants of the device.
These motors can be rotary and connected through reductor to rotating parts-e. g. through toothed gears, chain, toothed belt or cables-and through reductor with rack and pinion, thread transmission or a pair of cables or other transmission of rotary motion to translation one with translating parts, or linear and connected through e. g. rack and pinion with rotating parts and through rod, lever transmission, cam joint or a couple of cables with parts mounted anyway.
In order to get the better stability of the device during the work and safety during carrying, it is useful to fit the mechanism with means for locking the movable parts at their transportation and/or operation position-probably made as friction members or mechanical locks connectable with a keyboard section directly or through some other movable part, e. g. the cover.
In order to get the cover-with-display opening angle optimum it is useful this angle being changeable without influence at the position and function of other movable parts.
So the purpose of the cover-keyboard movable section and optionally other movable parts connection modification for the changeability of the cover-with-display opening angle is that the operation configuration angle of the planes at which the cover and the keyboard fixed section lie could be bigger than the minimum of this angle at the keyboard movable section and possibly other movable parts operation position.
For maximum easiness and time reduction during the reconfiguration from the device operation state to the transportation state the cover should be automatically closing independently from the opening angle value. In order to protect the movable parts from the damage due to too high speeds during their opening and/or closing it is possible to connect the mechanical centrifugal or viscous brake connected with the device case to the cover rotary mounting and/or to the hinge mounted pivotably to the device case at which the cover is pivotably mounted.
The brake braking effect progressively grows with the cover or cover hinge rotation angular speed during the device reconfiguration from the transportation state to the operation state and/or vice versa and is progressively reduced when the angular speed decreases and is fully or nearly zero at the cover or cover hinge rotation angular speed that is acceptable from the aspect of the cover or cover hinge deceleration when the cover opening or closing is finished.
The link simple type is a rotary joint of the cover and a keyboard section or the auxiliary part, the rotary joint axis being parallel to the cover rotation axis. The keyboard section or the auxiliary part is mounted either pivotably at an arm pivotably mounted at the device case, the axes of the joints, again, being parallel to the cover rotation axis, or led through an eye or rotary-translating joint at the device case, optionally at least one of the links of keyboard sections, cover and device case is made as at least two ball joints the centres of which lie on the line parallel to the cover rotation axis. The keyboard movable section possible vertical displacement or tilting is enabled through the geometry of the auxiliary part or the keyboard movable section mounting at the device case or at the parts of the keyboard movable section mounting. If a rotary joint is applied to control the keyboard movable section vertical displacement or tilting, the joint can be divisible - the shaft can be pulled out of the hub-and the rotary joint component fixed at the cover is located at the end of the trajectory of the component fixed at the keyboard movable section.
The keyboard movable section, especially pivotable about the axis approximately perpendicular to the cover rotation axis, can be linked to the cover through ball joint, too. In such case it is necessary to solve properly the keyboard movable section mounting-e. g. at the ball joint, too and with a support guideway at the device case, at the pivotably mounted auxiliary part connected to the keyboard movable section through rotary-translating joint, or some other way.
At the rod link, a rod is fitted through a ball joint to the cover at its one end and to the keyboard section or the auxiliary part at the other. The rod is always fitted to a part so that the joint centre does not lie at the part rotation axis. If the keyboard movable section or the auxiliary part is mounted pivotably about the axis parallel to the cover rotation axis or linearly translating perpendicularly to the cover rotation axis, the rod can be fitted to the cover and to the keyboard section or the auxiliary part through rotary joints the axes of which are parallel to the cover rotation axis. The keyboard movable section possible vertical displacement or tilting is enabled at the keyboard movable section mounting. If the rod link is applied to control the keyboard movable section vertical displacement or tilting, it can be divisible-the shaft can be pulled out of the hub at a rotary joint, the rod end is movable at the slot-and the divisible joint component at the rod fitted at the cover is located at the end of the trajectory of the component fixed at the keyboard movable section or the divisible joint component located at the cover is located at the end of the trajectory of the component fitted at the rod fitted at the keyboard movable section.
The link of the cover and the keyboard section can be executed through a cam joint. One of its members (a cam, or a cam follower) is made on or fixed to the cover and the other is made on or fitted to the keyboard section or the auxiliary part. The cam follower is always fitted to a part so that it does not lie at the part rotation axis and the cam trajectory lies approximately on the lateral area of a cylinder the axis of which is identical with the cover rotation axis in case the keyboard movable section or the auxiliary part is approximately linearly sliding parallelly to the cover rotation axis, or at the plane perpendicular to the cover rotation axis in case the keyboard movable section or the auxiliary part is movable at the plane perpendicular to the cover rotation axis or in case of the keyboard fixed section. If the keyboard movable section or the auxiliary part is mounted pivotably the cam trajectory is created approximately on the surface created with a basic curve rotation about the rotation axis of the part at which the cam trajectory is created, the basic curve being a circular arc identical with the cam follower motion trajectory between its limit locations. If the cam is one-sided, usually a pre-load spring connected to the cam follower is used. The cam joint can also be executed as a couple of a guide and a slide block sliding at the guide, the block is always fitted to a part so that it does not lie at the part rotation axis, too, or as a couple of a guide and a bar movable at the guide. The keyboard movable section possible vertical displacement or tilting is enabled at the keyboard movable section mounting parts or at the cam mechanism itself.
Cam joints can be used for connection of one or both ends of a lever mounted at the device case to the cover and/or to the keyboard section. If the cam joint is at the lever one end only, the lever is at the other end connected to the cover and/or to the keyboard section or the auxiliary part through a rotary or a ball joint. Next, the lever is led at the device case at an eye or a rotary- translating joint, or spherically or pivotably fitted to an arm that is spherically or pivotably mounted at the device case. The cam follower or slide block and rotary or ball joint are always fitted to a part so that they do not lie at the part rotation axis. The keyboard movable section possible vertical displacement or tilting is enabled at the cam mechanism itself, or at the eye at the device case made e. g. as a vertical slot, or at the arm mounting at the device case through fitting the arm at the device case pivotably and vertically sliding or spherically or at a Cardan joint mounted at the device case pivotably about approximately horizontal axis, or at the keyboard movable section mounting parts.
If the cam joint is at both lever ends, the lever must be mounted through one degree of freedom mounting at the device case. This can be executed e. g. through mounting the lever at the device case pivotably or through a thread joint, or it is possible to fit the lever slidingly either at a slot- both lever and slot must then be straight or shaped as a circular arc, or slidingly at at least two eyes-in such case the lever can be of a general shape. Another way is to mount the lever spherically or pivotably at a pair of arms pivotably or spherically mounted at the device case so that it forms with them a four-joint mechanism, or a combination of sliding and a four-joint mechanism, i. e. leading at one eye and pivotable or spherical mounting at one arm. The cam followers or slide blocks are always fitted to a part so that they do not lie at the part rotation axis.
If the keyboard movable section is vertically displacable or tiltable, the degrees of freedom can be two, one of them taken away just through the joint that determines the keyboard movable section vertical displacement or tilt angle in any its position. The keyboard movable section possible vertical displacement or tilting is enabled at the cam joint of the lever and the keyboard movable section or at the keyboard movable section mounting parts or, if the lever mounting at the device case-i. e. slots or guides and/or pivotable mounting of the lever or the arms-is modified in order to enable the lever vertical displacement, or at the cover and lever cam joint, or at the lever mounting parts, if tilting and possible vertical displacement of the lever ends enabled at the cam joints, this can be reached e. g. at slots or guides that enable the lever tilting about an approximately horizontal axis, or through pivotable mounting of both arms the lever is fitted at, the arms must lie at an approximately horizontal plane and are fitted at a pin mounted pivotably about an approximately horizontal axis at the device case, or through fitting one arm spherically or at a Cardan joint, both Cardan joint axis of pivotable mounting at the device case and the arm must lie approximately at the horizontal plane, or mounting the lever at the Cardan joint that is mounted at the device case pivotably about approximately horizontal axis the direction of which makes the lever end approximately vertically displacable during the lever turning about it.
The link consisting of a lever and two rotary-translating joints at the lever ends, the axis of the rotation and translation of the lever-cover joint being approximately parallel to the cover rotation axis and the axis of rotation and translation of the joint between the lever and the keyboard movable section or the auxiliary part being approximately parallel to the rotation axis of the keyboard movable section or the auxiliary part, is similar to the rod link. If the keyboard movable section or the auxiliary part is approximately straightly sliding, the axis of rotation and translation of the joint between the lever and the keyboard movable section or the auxiliary part being approximately vertical. Or, there can be a rotary-translating joint at lever one end and a ball joint at the other. The ball joint must be used to link the cover and the lever in case the keyboard movable section or the auxiliary part is approximately straightly sliding approximately parallelly to the cover rotation axis. On the contrary, in case the keyboard section or the auxiliary part is approximately straightly sliding approximately perpendicularly to the cover rotation axis or if the keyboard fixed section is connected, the connection of the lever and the cover can be rotary only and the connection of the lever and the keyboard section only translating perpendicularly to the cover rotation axis and horizontally in case of the keyboard fixed section and vertically in case of the keyboard movable section or the auxiliary part. The keyboard movable section possible vertical displacement is enabled at the keyboard movable section mounting parts or at the rotary-translating joint of the lever and the keyboard movable section.
The keyboard movable section possible tilting is enabled at the keyboard movable section mounting parts or at the rotary-translating joints.
Another link consists of two levers, one of them being mounted at the cover, the other at the keyboard section or the auxiliary part-in both cases pivotably about an axis approximately perpendicular to the part rotation axis. If the keyboard section or the auxiliary part is approximately straightly sliding, the lever is mounted at it pivotably about an axis that is approximately vertical or, in case of the keyboard fixed section, the lever can be mounted at it about an axis that is approximately horizontal and perpendicular to the cover rotation axis. The levers are connected through a ball joint, the keyboard movable section possible vertical displacement or tilting is enabled at the keyboard movable section mounting parts.
Another two links are based on a thread transmission principle. The first consists of a thread couple, at the cover a thread, either outer-bolt or inner-nut being created so that the thread axis is identical to the cover rotation axis. The other member of the thread couple is paired with the first and is connected with the keyboard movable section or the auxiliary part, this connection being fixed, vertically displacable or tiltable in case the keyboard movable section or the auxiliary part is approximately straightly sliding along the cover rotation axis. In other case the second member of the thread couple can be fitted pivotably about an axis parallel to the keyboard movable section or the auxiliary part rotation axis, optionally with the possibility of translation along this axis. Or the second member of the thread couple can be connected to the keyboard movable section or the auxiliary part through the ball joint or cam joint, the latter being completed with the guideway at the device case that has to disable this second member turning and optionally tilting. Both thread couple members can be of course made either complete or as thread segments. Only in case the keyboard movable section or the auxiliary part is straightly translating parallelly to the cover rotation axis, the fixed connection of this part and thread couple second member together with the thread variant that does not enable mutual tilting of thread couple members, is possible. In other case either the thread shape must enable this tilting or the cam joint needs to be used. The keyboard movable section possible vertical displacement is enabled in case of the keyboard movable section or the auxiliary part approximately straightly sliding parallelly to the cover rotation axis through application of vertically translating joint or- if the bolt is tiltable relatively to the nut-through the rotary joint the axis of which is horizontal and perpendicular to the cover rotation axis, in case of the keyboard movable section or the auxiliary part that is pivotable about approximately vertical axis, by the way of supplying the rotary joint with the possibility of vertical translation along its axis or through tilting the thread couple member enabled at the ball joint, or at the cam joint, or-at any case-at the keyboard movable section mounting parts. The keyboard movable section possible tilting is enabled at the keyboard movable section mounting parts or through similar modifications like those for the vertical displacement, e. g. a Cardan joint, in case of the keyboard movable section or the auxiliary part approximately straightly sliding parallelly to the cover rotation axis through fitting the keyboard movable section at the crank connected with the thread couple member, too.
The second link consists of two members, one of them being a bar that is fitted to the cover through cam joint, ball joint or rotary joint the axis of which is parallel to the cover rotation axis, the other end of the bar having radial projections that are coupled with helical slots at a hub that is fixed at and coaxial with the keyboard movable section or the auxiliary part. If the bar is fitted to the cover through the ball joint or the cam joint, the bar must be led at the device case in order to disable its turning and optionally tilting. The cam joint advantage is a possibility of the bar translating motion without tilting which is inevitable at other joints and which must not make the mechanism function impossible. Or the arrangement can be inversed-the hub is fitted to the cover and the bar to the keyboard movable section. This link is applicable at the devices at which the keyboard movable section or the auxiliary part is pivotable about an axis that is approximately perpendicular to the cover rotation axis. The keyboard movable section possible vertical displacement or tilting is enabled at the keyboard movable section mounting parts or the upper ends of the slots can be used-the keyboard movable section can be liftable upwards using the projections at the bar.
If there is a need to transmit the cover rotation to that of the keyboard movable section or the auxiliary part about an axis that is approximately perpendicular to the cover rotation axis, the link of the cover and the keyboard movable section can be made as a couple of toothed wheels or segments that are worm, conical, hypoid or spiral gear transmission. Its pinion or worm is fixed to the cover so that its axis is identical with the cover rotation axis. If there is a demand of the keyboard movable section motion beginning delay relative to the cover motion beginning, or of a possibility of subsequent cover opening when the device is at its operation state, some teeth of the pinion or worm can be deleted. The axis of the worm wheel that can be made as a lever with a sheave, or of the tooth wheel, is identical with the keyboard movable section or the auxiliary part rotation axis and the wheel is fitted to the keyboard movable section or the auxiliary part rigidly if the keyboard movable section or the auxiliary part rotation axis is approximately horizontal and rigidly or slidingly if this axis is approximately vertical-in such case the keyboard movable section possible vertical displacement or tilting must be enabled at the wheel and the keyboard movable section connection or through the gearing workmanship, or the keyboard movable section possible vertical displacement or tilting is enabled at the keyboard movable section mounting parts.
If there is a need to transmit the cover rotation to that of the keyboard section or the auxiliary part about an axis that is approximately parallel to the cover rotation axis, the link of the cover and the keyboard section can be made as a couple of toothed wheels or segments that are spur gear transmission the pinion of which can have deleted some teeth for the same reasons as in case of worm, conical, hypoid or helical gear and is fixed to the cover so that its axis is identical with the cover rotation axis and the wheel is fixed to the keyboard section or the auxiliary part, the wheel axis being identical with the keyboard section or the auxiliary part rotation axis.
The link can be executed as rack and pinion with straight or helical gearing, the pinion that can have deleted some teeth for the same reasons as in case of spur, worm, conical, hypoid or helical gear and can be made as toothed segment, too, is fixed to the cover so that its axis is identical with the cover rotation axis. A toothed rack is connected to the keyboard section or the auxiliary part and mounted at the device case so that it is sliding along its axis only or optionally vertically displacable or led at an eye or rotary-translating joint under the pinion and slightly tiltable about an axis that is approximately perpendicular to the cover rotation axis-in such case the tooth transverse profile of the rack, the pinion or both must be modified in order to enable this tilting- or about an axis that is approximately perpendicular to rack tooth front profile plane-in such case a clearance must be at the gearing or the rack must be led under the pinion at the cylindrical surface coaxial with the pinion axis. The connection of the keyboard movable section or the auxiliary part and the rack can be rigid if the keyboard movable section or the auxiliary part is approximately straightly sliding, rotary, spherical or cam. Only in case the keyboard movable section or the auxiliary part is straightly sliding it is possible to apply fixed connection of this part with the rack together with gear shape that does not enable mutual tilting of gear couple members. In other case it is necessary either to enable this tilting through the gear design or to use a cam joint for the connection of the rack and the keyboard section or the auxiliary part. The keyboard movable section possible vertical displacement is enabled in case of the keyboard movable section or the auxiliary part approximately straightly sliding through its connection with the rack through vertically sliding joint or-if the rack is tiltable about an axis approximately perpendicular to rack tooth front profile plane-through the rotary joint the axis of which is horizontal and perpendicular to the keyboard movable section or the auxiliary part translation direction. If the part is pivotable about approximately vertical axis, the vertical displacement is enabled by the way of supplying the rotary joint with the possibility of vertical translation along its axis or through tilting the rack enabled at a ball joint, a Cardan joint or cam joint, or-at any case-at the keyboard movable section mounting parts. The keyboard movable section possible tilting is enabled at the keyboard movable section mounting parts or at the rack mounting at the device case or at the rotary joint of the rack and the keyboard movable section that is straightly sliding, the rack axis being parallel to the cover rotation axis, or-in case of the pivotable keyboard movable section-through a Cardan joint application. If the link connects the cover and the keyboard fixed section, the rack is fixed to the keyboard fixed section.
Next three links use pliable components. It is first the link based on a toothed pliable member, i. e. toothed belt or chain the driving pulley of which is fixed to the cover so that its axis is identical with the cover rotation axis. If there is a demand of the keyboard section motion beginning delay relative to the cover motion beginning, or of a possibility of subsequent cover opening when the device is at its operation state, some of the driving pulley teeth can be deleted.
The driven pulley is connected to the keyboard section or the auxiliary part rigidly if the keyboard movable section or the auxiliary part rotation axis is approximately horizontal and rigidly or slidingly if this axis is approximately vertical-in such case the keyboard movable section possible vertical displacement or tilting must be enabled at the pulley and the keyboard movable section or the auxiliary part connection, or the keyboard movable section possible vertical displacement or tilting is enabled at the keyboard movable section mounting parts or enabled through the toothed pliable component flexibility. If the driven pulley rotation orientation has to be changed relatively to the driving one, the toothed pliable component has to be functional when twisted or slightly transversely bent, too, same as in case the pulley axes are not parallel-in such case it must be led over guiding sheaves or sliders.
Another link that uses the pliable component consists of cables that are always fitted to a part so that they do not lie at the part rotation axis and are connected to the cover at one end and to the keyboard section or the auxiliary part at the other. The cables can be fitted to pivotable parts through sheaves unrevolvably fitted to these parts, the sheave axes being identical with these parts rotation axes. The cables are fixed to the sheaves. If necessary, the cables can be turned about the sheaves several times, e. g. in case the sheave turning angle demanded is so big that the cable end, i. e. the point at which the cable is fixed to the sheave, gets out of the revolution range - i. e. the length of the cable part coiled at the sheave is zero and it is still insufficient. If the keyboard section or the auxiliary part is approximately straightly sliding, or if the keyboard section vertical displacement or tilting is bound to the cover through the cable, or if the keyboard fixed section and the keyboard movable section are bound together through the cable, at least one cable must be led over the sheave or slider or two arm lever, thus enabling the link of cover opening and the keyboard movable section sliding out. The keyboard movable section possible vertical displacement or tilting must be enabled at the pulley and the keyboard movable section or the auxiliary part connection, or the keyboard movable section possible vertical displacement or tilting is enabled at the keyboard movable section mounting parts or enabled through the cable transmission geometry or through the cable or the sheave fitting. If the keyboard section vertical displacement or tilting is controlled through the cables, one cable only can be used.
The last type of link using the pliable component is the link of the cover and the keyboard movable section or of the keyboard movable section and the keyboard fixed section that uses a torsionally stiff but pliable component. It is connected to the cover or the keyboard fixed section at its one end and to the keyboard movable section or the auxiliary part at the other. The keyboard movable section possible vertical displacement or tilting is enabled at the keyboard movable section mounting parts.
If the mechanism for unfolding and folding of the keyboard movable section shall comply with the demand of the keyboard movable section motion beginning delay after the cover opening beginning and the keyboard movable section motion may be finished after cover motion finish, the link of the keyboard movable section and the cover that consists of two plates or a plate and a bar can be used. The plate edge or at least its part is circular and coaxial with the axis of the part the plate is fixed to. One of the plates is fixed to the cover and the other is unrevolvably fitted to the keyboard movable section or the auxiliary part. The rotation axis of this part is approximately perpendicular to the cover rotation axis and approximately horizontal or approximately vertical.
If the bar is used, it is sliding along the cover rotation axis and connected to the keyboard movable section or the auxiliary part that is approximately straightly sliding in the same direction. The second plate or the bar lies at the plane that intersects the cover rotation axis or is parallel to it or the angle of the cover rotation axis and the plane is small and they intersect each other near the plates. The second plate or the bar is connected to the spring. The plates or the first plate and the bar have cuts at their perimeters, the cuts are shaped so as to enable passing of the other plate circular edge or the bar straight edge. The angle of the first plate cut or, if the cut is not radial, of the first plate cut mouth at the plate edge, the cover rotation axis and the plane the second plate or the bar lies at, or, if the plane does not intersect the cover rotation axis, the intersection of the plane and the first plate circular edge, is lesser or equal to the angle of the cover turning about its axis during the cover transfer from the transportation position to the operation position and the orientation of the cut-cover rotation axis-plane angle is the same as the direction of the cover motion from the transportation position to the operation position. The keyboard movable section possible vertical displacement or tilting is enabled at its mounting parts or at its fitting to the plate or the bar.
The first plate circular edge passes through the cut at the second plate circular edge or at the bar at the transportation configuration. The spring connected to the second plate or to the bar contains the energy stored at its elastic deformation at the transportation configuration. The energy is released at the moment when the cut at the first plate is approximately at the plane of the second plate or of the bar. The keyboard movable section final position is set through its motion stop that can use the cut at the second plate or at the bar.
An extension of this link type for the cases where the distance of the plates or the plate and the bar is so far that their edges have no intersection, the keyboard section or the auxiliary part can be pivotable about an axis parallel to the cover rotation axis or sliding approximately perpendicularly to this axis, is the link consisting of two plates with fully or partially circular edges, the axes of the circular sections of the plates being coaxial with the axes of the parts the plates are fitted to, or of the first of these plates and the bar. The first plate is fixed to the cover so that its axis is coaxial to the cover rotation axis and the other is unpivotably connected to the keyboard movable section or the auxiliary part. The bar is approximately straightly sliding and connected to the keyboard movable section or the auxiliary part that is straightly sliding, too. The second plate or the bar is connected to the spring. There is a cut at the second plate circular edge or the bar straight edge that is stated for the second end of the lever connected with a spring and mounted at the device case at the mounting that has one degree of freedom. There are cuts at the edges of the plates or of the plate and the bar, the cut depths are made so that if the lever first end is in the cut at the first plate, the lever second end touches the second plate circular edge or the bar straight edge and vice versa. The angle of the first plate cut, the cover rotation axis and the point the lever first end touches the first plane, is lesser or equal to the angle of the cover turning about its axis during the cover transfer from the transportation position to the operation position and the orientation of the cut, the cover rotation axis and the lever first end touch point angle is the same as the direction of the cover motion from the transportation position to the operation position. Or the first plate has a projection at its perimeter, the projection being shaped so that if the lever first end touches the first plane circular edge the lever second edge is in the cut at the second plate or the bar and if the lever first end touches the projection at the first plate perimeter, the lever second end is out of the cut at the second plate or the bar. The keyboard movable section possible vertical displacement or tilting is enabled at its mounting parts or at its fitting to the plate or the bar.
At the transportation configuration, the lever second end is in the cut at the second plate circular edge or at the bar and the lever first end touches the first plate edge. The spring connected to the lever contains the energy stored at its elastic deformation at the transportation configuration, this energy pushing the lever first end to the first plate. The spring connected to the second plate or to the bar contains the energy stored at its elastic deformation at the transportation configuration.
The energy is released at the moment when the lever first end is in the cut or at the projection at the first plate, the lever second end being out of the cut at the second plate or of the bar. The keyboard section final position is set through its motion stop that can use the cut at the second plate or at the bar.
The link of the cover and the keyboard movable section pivotable about approximately vertical axis that at the same time determinates the vertical displacement at the keyboard movable section is the link of the approximately horizontal shaft connected to the cover either rigidly or through a transmission that multiplicates the cover revolutions, and the shaft that is fitted to the keyboard movable section rigidly or radially slidingly and/or pivotably, always not at the rotation axis of both parts, the shafts being connected through a cam joint, ball joint or Cardan joint. The link kinematics arrangement ensures that during all the rotation of the shaft connected with the cover or at least during a part of it not only the keyboard movable section turn angle but also its vertical position is dependent on the turn angle of the shaft connected with the cover.
If the keyboard movable section is vertically displacable or tiltable about an axis approximately parallel to the cover rotation axis, it can be in contact with the device case through two support surfaces, one of them at the device case and the other at the keyboard movable section or the auxiliary part. These support surfaces are in contact and they are segment-shaped or with cut- outs so that the maximum possible distance or angular distance between the rear end of the surface on the movable part and the front end of the surface at the device case with regard to the direction of the keyboard movable section motion to the operation position is approximately equal to the value of the keyboard movable section horizontal translation or rotation. At the keyboard movable section plan operation position, the approximately vertical distance of the keyboard movable section or the auxiliary part and the device case is not less than the keyboard movable section vertical displacement in case the keyboard movable section is vertically displacable, or their angular distance relatively to the keyboard movable section tilt axis is not less than the keyboard movable section tilt angle in case the keyboard movable section is tiltable.
The support surfaces are in the contact from the device operation configuration at least to the position at which the distance of the support surfaces that are opposite in the direction of the keyboard movable section approximately vertical motion and other mutually vertically movable parts is at least equal to the keyboard movable section vertical displacement value, or to the position at which the distance of the support surfaces that are opposite in the direction of the keyboard movable section tilting about an axis approximately parallel to the cover rotation axis and other mutually tiltable parts is at least equal to the arc length that is equal to the product of tilt angle and distance from tilt axis.
The keyboard movable section can be mounted at the auxiliary part to which it is vertically displacable or tiltable about an axis approximately parallel to the cover rotation axis, this auxiliary part being usually approximately straightly sliding or pivotable about an axis that is approximately perpendicular to the cover rotation axis.
If the keyboard movable section or the auxiliary part is mounted pivotably about an axis approximately perpendicular to the cover rotation axis and shall be tiltable about an axis approximately parallel to the cover rotation axis, the Cardan joint can be used at the mounting so that the keyboard movable section is mounted pivotably about an axis approximately perpendicular to the cover rotation axis at the auxiliary part mounted at the device case pivotably about an axis approximately parallel to the cover rotation axis, or the keyboard movable section is mounted pivotably about an axis that is approximately parallel to the cover rotation axis in the keyboard movable section or the auxiliary part operation position at the auxiliary part mounted at the device case pivotably about an axis approximately perpendicular to the cover rotation axis.
It is possible to use an approximately linear or circular guideway of the keyboard movable section, the guideway being ended with an approximately vertically displacable segment or a vertical pin, the pin length or the mentioned segment vertical displacement value being equal to the keyboard movable section vertical displacement value, or with a segment that is tiltable about an axis that is approximately parallel to the cover rotation axis or a pin the axis of which is of the same direction, the segment tilt angle value being equal to that of the keyboard movable section angle of tilt about the cover rotation axis, or with a segment movable along a circular arc lying at a plane approximately perpendicular to the cover rotation axis, the circular arc length is equal to the product of the keyboard movable section tilt angle and the segment distance from the tilt axis or a pin the axis of which is a circular arc lying approximately at the same plane and of the same length. There is a slider-optionally with a hole-at the guideway, the slider is connected to the keyboard movable section and sliding at the guideway along its axis. The mechanism contains also a member that is connected to the keyboard movable section or to the slider connected to the keyboard movable section or to the guideway displacable or tiltable segment that is linked to the cover or to the device case and optionally an elastic component connected to the guideway displacable or tiltable segment or connectable to the slider or a mechanical lock of the empty guideway displacable or tiltable segment.
If the fitting arrangement of an approximately straightly translating keyboard movable section or an auxiliary part permits the motion along an inclined trajectory during the keyboard movable section vertical displacement, the keyboard movable section can be fitted to a slider that is only sliding in the T or L shaped slot that is approximately parallel to the keyboard movable section horizontal motion direction. The slot has a lower part widened and inclined downwards at its outer end and there is a projection at the slider bottom part that is wider than the slot upper part and the slide block shape when viewed perpendicularly to the slot axis and horizontally is a rhomboid with inclined walls sloping angle equal to the slot outer end downwards inclination sloping angle. The slider horizontal walls length is shorter by the necessary clearance than the distance between the upper and lower slot inclined segment lower part sides measured at a horizontal plane. There is an auxiliary part near the slot that is only sliding at the same or slightly different direction as that of slot inclined segment lower part axis and there is an approximately horizontal pin at this the auxiliary part for which the respective cut-out at the slider is created.
The pin is at the cut-out made for it at the slider when the projection at the slider lower part is at the slot inclined segment lower part.
If the fitting arrangement of the keyboard movable section or the auxiliary part that is pivotable about an approximately vertical axis permits the motion along a helical trajectory during the keyboard movable section vertical displacement, the keyboard movable section can be fitted to a slider that is only sliding in the T or L shaped slot that is approximately circular, with the center at the keyboard movable section rotation axis. The slot has a lower part widened and inclined downwards at one its end and there is a projection at the slider bottom part that is wider than the slot upper part and the slider section at a cylindrical cut the axis of which is identical to the keyboard movable section rotation axis is a rhomboid with inclined walls sloping angle equal to the sloping angle of the slot outer end downwards inclination. The slider end walls and the slot widened part upper and lower walls are the helical surfaces and the slider horizontal wall arc length is shorter by the necessary clearance than the length of circular arcs between upper and lower slot inclined segment lower part sides measured at the horizontal plane. There is an auxiliary part near the slot that is only movable along the same or only slightly different helical curve as the slot inclined segment lower part axis is and there is an approximately horizontal pin at this auxiliary part for which the respective cut-out at the slider is created.
The pin is at the cut-out made for it at the slider when the projection at the slider lower part is at the slot inclined segment lower part.
A simple variant of the link between the keyboard section vertical displacement and the keyboard movable section horizontal motion or between keyboard section tiltings is the keyboard movable section fitting at the auxiliary part and its contact with the device case or the keyboard fixed section through properly located and shaped inclined or helical surface.
At least at some keyboard movable section motion phase between the transportation position and the operation position the keyboard movable section is movable not approximately horizontally only but also approximately vertically or about an axis that is approximately parallel to the cover rotation axis, these two motions being bound together through the mentioned inclined surface.
Or, the keyboard movable section is not vertically displacable and the approximately horizontal keyboard movable section motion is bound with the keyboard fixed section approximately vertical motion through the inclined or helical surface. Or, the keyboard movable section tilting and the keyboard fixed section tilting are bound through the inclined or helical surface.
The more complex subversion of this variant is the link between the keyboard movable section or the auxiliary part and the device case through the bar that is connected to the cover and sliding approximately at the approximately linearly sliding keyboard movable section or auxiliary part motion direction, or pivotable approximately about the keyboard movable section or auxiliary part axis of revolution that is approximately vertical. This bar is connected to the keyboard movable section or the auxiliary part in order to be sliding approximately along the bar axis or pivotable about an approximately vertical axis relatively to the keyboard movable section or the auxiliary part and to be approximately vertically displacable or tiltable about an axis approximately parallel to the cover rotation axis and an inclined or helical surface that is created at the bar end is approximately of the same shape as the surface created at the keyboard movable section or the auxiliary part, or there is a projection at the bar end. The distance of the ends of the projection or the inclined or helical surface is lower than the distance of the surfaces that are created at the keyboard movable section or the auxiliary part and are opposite to the ends of the surface at the bar. At the keyboard movable section that is approximately straightly sliding, the distance of the surfaces at the keyboard movable section or the auxiliary part is higher than the distance of the surfaces at the bar by by such value of the bar translation relatively to the keyboard movable section or to the auxiliary part that, after transmission through the couple of inclined or helical surfaces or of the inclined or helical surface and the projection, gives the keyboard movable section or the auxiliary part tilt angle or vertical displacement value. At the keyboard movable section that is pivotable about an approximately vertical axis, the angular distance of the surfaces at the keyboard movable section or the auxiliary part is higher than the angular distance of the surfaces at the bar by such value of the bar rotation relatively to the keyboard movable section or the auxiliary part that, after transmission through the couple of inclined or helical surfaces, gives the keyboard movable section or the auxiliary part tilt angle or vertical displacement value. Next, the distance or angular distance of the surfaces at the keyboard movable section or the auxiliary part is increased by the clearance that is necessary from the technology aspect. Some elastic component can be fitted between the keyboard movable section or the auxiliary part and the bar. Or, the arrangement can be inverted-the projection can be at the keyboard movable section or the auxiliary part and the inclined or helical surface with the end higher distance at the bar.
During the device reconfiguration from the operation arrangement to the transportation arrangement, approximately horizontal bar motion is first transformed to the keyboard movable section or the auxiliary part vertical motion or tilting and after reaching its needed value is transformed to the horizontal motion. The elastic component is useful especially at the systems where the keyboard movable section transportation location is under the keyboard fixed section; its force effect being slightly higher than the weight of the keyboard movable section and possible auxiliary part and of the opposite orientation.
Approximately straightly sliding keyboard movable section can be fitted to at least one lever pivotably about an axis approximately perpendicular to the keyboard movable section approximately straight translation direction and horizontal or to at least one pair of levers by means of ball joints or the keyboard movable section is fitted to the levers by means of some combination of the above-mentioned variants, the levers being fitted to at least one auxiliary part pivotably about axes that are approximately perpendicular to the keyboard movable section approximately straight translation direction and horizontal, the auxiliary part (s) being sliding at the same direction as the keyboard movable section and connected to the cover by means of any link for connection of the cover and a straightly sliding keyboard movable section. There are projections at the levers near their joints to the auxiliary part (s), the projections are above or under the axis of rotary joint of the lever and the auxiliary part (s) and when the auxiliary part (s) translation from the transportation position to the operation position is less than or equal to the maximum and at least such that neither the keyboard fixed section nor the device case limits the keyboard movable section vertical displacement, the projections are in contact with a device case part designed for it. If the keyboard movable section is above the keyboard fixed section in the transportation position, the lever is connected to the auxiliary part by means of an elastic component, too.
There is some energy accumulated at the elastic component when the device is at the transportation configuration, the energy causing the elastic component torque acting at the lever is slightly higher and of the opposite orientation than the keyboard movable section gravity force torque acting at the lever.
Or, the projections can be in contact with a device case part designed for it when the auxiliary part (s) translation from the transportation position to the operation position is zero or more and not higher than such that neither the keyboard fixed section nor the device case limits the keyboard movable section vertical displacement. If the keyboard movable section is under the keyboard fixed section in the transportation position, the lever is connected to the auxiliary part by means of an elastic component, too.
There is some energy accumulated at the elastic component when the device is at the transportation configuration, the energy causing the elastic component torque acting at the lever is slightly higher and of the opposite orientation than the keyboard movable section gravity force torque acting at the lever.
Another possibility of the cover and a keyboard section connection is a scissors mechanism. The first variant is a keyboard section that is tilting about an axis approximately parallel to the cover rotation axis by means of the scissors mechanism with the arms lying in a plane approximately perpendicular to the cover rotation axis. One arm is fitted to the keyboard movable section at one end and to approximately straightly sliding part at which the second arm is fitted, too, this second arm being connected pivotably at its second end to the first arm approximately at a half of the first arm length. One of the arms is fitted to the approximately straightly sliding part by means of a ball joint or a rotary joint with the axis approximately parallel to the cover rotation axis and the other at the slot pivotably and slidingly approximately perpendicularly to the cover rotation axis and the keyboard movable section is mounted at the mentioned straightly sliding part. One of the joints of the keyboard movable section to an arm and the keyboard movable section to straightly sliding part is a ball joint or a rotary joint with an axis approximately parallel to the cover rotation axis and the other is a rotary-translating joint, the translation being executed at the slot approximately perpendicular to the cover rotation axis. Or, the keyboard movable section is mounted at the device case being also sliding approximately along the cover rotation axis and the position of a ball end, a rotary end or an end sliding in the slot of at least one of the arms is controlled by the joint of this end to the cover or to the device case. In case of the control of the keyboard fixed section tilt the shorter arm is pivotably connected to the cover and the longer to the keyboard fixed section and to the device case.
The second variant is a keyboard section that is tilting about an axis approximately parallel to the cover rotation axis by means of the scissors mechanism with the arms lying in a plane approximately parallel to the cover rotation axis. One arm is fitted to the keyboard movable section at one end by means of a ball joint or a rotary joint with an axis approximately perpendicular to the cover rotation axis and at the other end to approximately straightly sliding part by means of a rotary-translating joint, the translation being executed at a slot approximately parallel to the cover rotation axis. The joints at the second arm are arranged vice versa and the arms are pivotably connected together approximately at the halves of their lengths. The keyboard movable section is mounted at the mentioned straightly sliding part pivotably about an axis approximately parallel to the cover rotation axis and optionally slidingly horizontally and perpendicularly to this axis or at the device case by the same way and sliding approximately along the cover rotation axis. The position of a ball end, a rotary end or an end sliding in the slot of at least one of the arms is controlled by the joint of this end to the cover or to the device case.
In case of the control of the keyboard fixed section tilt the arms are mounted at the device case and the sliding end is controlled by the joint to the cover.
A keyboard section can be movable approximately vertically or approximately parallelly to the cover rotation axis by means of the scissors mechanism. Then one arm is fitted to the keyboard movable section at one end by means of a rotary joint with an axis approximately perpendicular to the plane of scissors mechanism arms and the other end is sliding at a slot which lies at this plane and is created at approximately straightly sliding part or at the device case. The joints at the second arm are arranged vice versa, the arms are pivotably connected together approximately at the halves of their lengths. The position of a rotary end or an end sliding in the slot of at least one of the arms is controlled by the joint of this end to the cover or to the device case. In case of the control of the keyboard fixed section vertical displacement the arms are mounted at the device case and the sliding end is pivotably connected to the cover if the scissors mechanism lies at the plane approximately perpendicular to the cover rotation axis, or by means of some other joint if the scissors mechanism lies at the plane approximately parallel to the cover rotation axis.
To check the motion of the keyboard fixed section that is vertically displacable or tiltable about an axis that is approximately parallel to the cover rotation axis, the same links are applicable as those for the connection of the cover and the keyboard movable section. In such case the arrangement with one or more links with the link members connected to the keyboard fixed section at approximately the same distance from the cover rotation axis can be used for the keyboard fixed section vertical displacement together with the guideway for ensuring the keyboard fixed section horizontality and its position at the horizontal plane.
A different possibility is the arrangement with more links with the members connected to the keyboard fixed section at at least two distances from the cover rotation axis, the guideway being not necessary in case of the keyboard fixed section positioning through these links. If the link acting points lie at the same plane that is approximately perpendicular to the cover rotation axis, the links are added with the keyboard fixed section guideway at the device case for the disabling of the keyboard fixed section tilting about an axis that is approximately horizontal and perpendicular to the cover rotation axis.
One or more links with the members connected to the keyboard fixed section at approximately the same distance from the cover rotation axis is applied at a tiltable keyboard fixed section together with the keyboard fixed section rotary mounting, optionally with the possibility of the translation perpendicular to the cover rotation axis and approximately horizontal.
An elastic component can be built into the link between the cover and the keyboard section or between the keyboard movable section and the keyboard fixed section.
This elastic component is usually connected so that the energy contained at it at the device transportation configuration is of such quantity that the elastic component force effect at the keyboard movable section or the keyboard fixed section is approximately of the same size and of the opposite orientation as the force effect of the keyboard movable section or the keyboard fixed section own weight. The mechanism is thus released, the friction losses are smaller etc.
Optionally, such energy is accumulated at the elastic component at some configuration of the mechanism between the transportation one and operation one, due to the movable parts position changes. This can be used e. g. if the keyboard movable section or the keyboard fixed section has to be vertically unmovable till the keyboard movable section and the keyboard fixed section plan outlines do not intersect and the keyboard movable section or the keyboard fixed section is connected to the cover through the link that is rigid itself and does not permit to set the transmission phasing, e. g. a rod.
The keyboard movable section must be tiltable in case neither the keyboard movable section nor the keyboard fixed section is vertically displacable. Also, if the keyboard movable section and the keyboard fixed section shall lie at the same plane at the operation position, both them must be tiltable. In such case, or if both the keyboard movable section and the keyboard fixed section are vertically displacable, or if the keyboard fixed section is vertically displacable and the keyboard movable section lying in front of it at the operation position is tiltable, a link of the vertical displacements or tilts of the keyboard movable section and the keyboard fixed section can be useful. The vertical displacements or tilts of the keyboard movable section and the keyboard fixed section can be linked through e. g. a rotary joint, rod, lever, some mechanism with toothed pliable component, cable or torsionally stiff and pliable component. If a rotary joint, rod, lever, or a transmission with toothed pliable component is used for the keyboard movable section and the keyboard fixed section binding together, the joint or one of the joints can be divisible.
It is assembled only when the device configuration, i. e. the keyboard movable section horizontal position, is close to the operation configuration and optionally at the operation configuration itself.
If a rotary joint is used for the keyboard movable section and the keyboard fixed section binding together, one its member is created at the keyboard movable section tiltable about an axis approximately parallel to the cover rotation axis and the other rotary joint member is created at the keyboard fixed section tiltable, this member being located approximately at the trajectory end of the rotary joint member located at the keyboard movable section.
If a rod is used for the keyboard section binding together, rotary joint members are created at the keyboard movable section vertically displacable or tiltable about an axis approximately parallel to the cover rotation axis and at the keyboard fixed section vertically displacable or tiltable, the axes of the rotary joints being approximately parallel to the cover rotation axis. These members correspond with the other rotary joint members that are created at the rod ends, the rod being fitted at the keyboard fixed section so that the member of the rotary joint to the keyboard movable section is located at the rod approximately at the trajectory end of this rotary joint member located at the keyboard movable section, or, if the rod is fitted at the keyboard movable section, the rotary joint member at the keyboard fixed section is located approximately at the trajectory end of this joint member that is located at the rod. In both cases, the rod can be mounted through one of the rotary joints that is permanently assembled and when the divisible joint is disassembled, the rod position needs to be fixed through rod supporting at the keyboard movable section, the auxiliary part, the device case or by some other means.
At the keyboard section connection through a rotary joint or a rod, this means application of the joint with the shaft able of pulling out from the hub if the keyboard movable section lies at the side of the keyboard fixed section at the operation position, or of the joint with the shaft sliding in the slot approximately perpendicularly to the shaft axis if the keyboard movable section lies in front of the keyboard fixed section at the operation position.
If a lever is used for the keyboard movable section and the keyboard fixed section binding together, one rotary joint member is created both at the keyboard movable section vertically displacable or tiltable about an axis approximately parallel to the cover rotation axis and at the keyboard fixed section vertically displacable or tiltable, the axes of the rotary joints being approximately parallel to the cover rotation axis, or there are rotary-translating joints that can be made as a projection at an eye or at a slot, or cam joints, the other members of which are located at the ends of a lever mounted at the device case or at the auxiliary part at which the keyboard movable section is mounted, can be applied if the lever arms are movable at a plane approximately perpendicular to the cover rotation axis, the lever mounting is rotary and optionally sliding, if the lever arms are movable at the plane approximately parallel to the cover rotation axis, the lever is mounted at a rotary, ball, Cardan or rotary-translating joint, or guided at an eye. The joint members at a keyboard section are located approximately at the trajectory ends of the joint members at the lever, one of the joints can be assembled permanently. When the divisible joint is disassembled, the lever position needs to be fixed through supporting at the keyboard movable section, the auxiliary part, the device case or by some other means.
At a toothed pliable component transmission, pulleys of this transmission are mounted at the device case or at the auxiliary part at which the keyboard movable section tiltable about an axis approximately parallel to the cover rotation axis is mounted, the pulleys are mounted by means of rotary joints with axes parallel to the cover rotation axis. One of the pulleys is fixed to a keyboard section and there is one member of an unpivotable joint created at the other pulley, the other member of the unpivotable joint being created at the keyboard fixed section, approximately at the trajectory end of the unpivotable joint member at the pulley, in case the pulleys are mounted at the auxiliary part. Or, if the pulleys are mounted at the device case, the unpivotable joint member at the pulley is located approximately at the trajectory end of the unpivotable joint member at the keyboard movable section. The unpivotable joint is able of torque transfer and can be made e. g. as two pins with the respective holes or a couple of a shaft and a hub of a non- circular section.
At the most general variant of the mechanism of the keyboard movable section folding and unfolding, the connection of the cover and a keyboard section consists of any combination of the links stated at the previous claims, be this combination serial, when the particular links described above are sequenced between the cover and the keyboard section or the auxiliary part in the configuration where the output of one link is the input of the next one, or parallel, where the keyboard section or the auxiliary part is connected with the cover by means of several links, identical or different, or there are several keyboard movable section and each of them is connected to the cover through its own link or links, or serial-parallel, where there is at least one serial connection in the parallel one. The links can be combined with the hydraulic, pneumatic or electromechanical connections and the keyboard movable section can be connected not with the cover only, but with other movable parts, too.
If the mechanism is equipped with an energy spring accumulator, this is most often executed as one or more elastic components. These can be an axial spring connected to the cover not at its rotation axis and lying approximately at a plane perpendicular to the cover rotation axis, or lying approximately parallelly to the cover rotation axis and connected to the cover through a transmission of a translation to a rotation, or a torsion spring, or any elastic component connected to the cover either directly or by means of some proper mechanism.
If the cover is connected to one elastic component only, the other end of this component can be fixed at the device case.
In such case, the energy amount contained at it at the device transportation configuration is approximately the same or slightly more than the energy amount necessary for the transfer of the cover and all the movable parts connected to the cover from the transportation position to the operation position and the force effect produced by this energy is of the opposite orientation than the force effect of the cover and optionally other movable parts weight at the device transportation configuration and/or the energy amount contained at the elastic component at the device operation configuration and the elastic component position of zero energy contained and the orientation of the force effect produced by this energy corresponds with a demand of a rapid and reliable transfer of the cover and all the movable parts connected to the cover from the operation position to the transportation position.
An improvement of the previous variant is a version with the elastic component second end fitted at the device case in such way that its position relatively to the device case is changeable either manually by user or automatically by a small electric motor, this change being either direct or through some control component connected with the elastic component end. In case of a torsion spring this means either spring end turning approximately about its axis or such a translation of a spring end or of a part connected with this end that this turning is got, in case of an axial spring this means a spring end translation approximately along the spring axis.
In general, this elastic component end position change at the device operation state is such that the energy amount that stayed at the elastic component after moving the cover and the movable parts connected with it from the transportation position to the operation position, the orientation of the force effect the elastic component applies at the cover and the elastic component position of zero energy contained are changed to those corresponding with the demand of rapid and reliable transfer of the cover and all the movable parts connected to the cover from the operation position to the transportation position and/or the elastic component end position change at the device transportation state is such that the energy amount that stayed at the elastic component after moving the cover and the movable parts connected with it from the operation position to the transportation position, the orientation of the force effect the elastic component applies at the cover and the elastic component position of zero energy contained are changed to such ones that the energy amount contained at the elastic component is approximately the same or slightly more than the energy amount necessary for the transfer of the cover and all the movable parts connected to the cover from the transportation position to the operation position and the force effect produced by this energy is of the opposite orientation than the force effect of the cover and optionally other movable parts weight at the device transportation configuration.
The control component the position of the elastic component end fitted at the device case is changeable with can be a cam. The cam can be frontal or circumferencial, sliding or pivotable.
The elastic component end is supported at its curved surface or guided at its curved slot. The elastic component end optional fitting is such that the elastic component end is only or predominantly movable at the direction approximately perpendicular to the sliding cam motion direction or approximately at the radial plane or approximately along the axis of the pivotable cam, i. e. e. g. guided at an eye at the device case or fitted through a ball joint or a rotary joint with the axis approximately perpendicular to the elastic component end motion direction to a lever mounted at the device case pivotably about an axis approximately perpendicular to the elastic component end motion direction. Besides, the cam is either fixable with a lock or an end piece at its limit positions or the contact angles of the elastic component end and the segments of the cam surface or slot at which the elastic component end is at its limit positions differ from the 90 deg not more than by the angle of friction between the cam surface or slot and the elastic component end, or the cam is at its limit position unblocked unless the control force is applied.
The control component the position of the elastic component end fitted at the device case is changeable with can be a cam follower or a slide block of a guide that is connected with the elastic component end through a ball joint or a rotary joint with the axis approximately perpendicular to the cam follower/slide block motion plane, or the elastic component end is supported at the cam follower or the slide block. The cam follower or the slide block is mounted at the device case pivotably or slidingly at a guideway or at two eyes, or at two arms mounted at the device case pivotably or through ball joints, the cam follower or the slide block and the two arms being together a four-joint mechanism, or at one such arm and guided through an eye at the device case, or through a thread joint, or with any other mounting system of one degree of freedom. If the cam follower or the slide block is not fixed at one and/or the other limit position by means of two-side contact joint or the elastic component end force effect, it must be fixed at this position by a lock and the cam or the guide must be either fixable at its limit positions with a lock or an end piece against which the cam follower or the slide block force effect acts or the contact angles of the cam follower or the slide block and the segments of the cam/guide surface or slot at which the cam follower or the slide block is at its limit positions differ from the 90 deg not more than by the angle of friction between the cam/guide surface or slot and the cam follower or the slide block, or the cam/guide is at its limit position unblocked unless the control force is applied.
The control component the position of the elastic component end fitted at the device case is changeable with can be a worm wheel controlled by a worm. The worm wheel can be made as a lever with a sheave. Both the members of the worm gear are pivotably mounted at the device case and the worm wheel can be directly connected to a torsion spring end or to any other pivotable component connected to the elastic component, or through the rotation to translation transmission to the end of an axial spring.
Next, a thread transmission can be applied: in the first case thread transmission one member, i. e. a bolt or a nut that can be made as full or as a thread segment, is the control component the position of the elastic component end fitted at the device case is changeable with, this thread transmission member being slidingly mounted at the device case and connected to an axial spring end or to any other sliding component connected to the elastic component, or through the translation to rotation transmission to the end of a torsion spring. The thread transmission second member is pivotably mounted at the device case.
In the second case the control component the position of the elastic component end fitted at the device case is changeable with is a hub with helical slots or a bar with radial projections coupled with these slots. The hub or the rod is pivotably mounted at the device case and connected to a torsion spring end or to any other pivotable component connected to the elastic component, or through the rotation to translation transmission to the end of an axial spring. The transmission second member is mounted at the device case movably approximately along its axis.
It is useful to made the described worm and thread mechanisms as self-locking-then the controlled member is the worm, thread transmission pivotable member in the first case or sliding member in the second case. If so, they are automatically locked in any position.
The control component the position of the elastic component end fitted at the device case is changeable with can be also a lever mounted at the device case pivotably about an axis approximately perpendicular to the direction or the plane of the elastic component end motion and connected with the elastic component end through a cam joint, ball joint or a rotary joint with the axis approximately parallel to the axis the lever is pivotable about. Besides, the lever position at each of the limit positions is either set with an end piece the lever is pressed to due to the spring reaction or the cam joint, or the lever is fixed at this position by means of a lock.
A device variant with the cover connected to two elastic components has similar function. At first version, the first elastic component second end is fitted at the device case. The second elastic component second end is fitted at an end block. This end block is lockable at the device case, is controlled either manually by user or automatically by a small electric motor and can be relocated within the range corresponding with the difference between the device transportation configuration and operation configuration positions of the end block connected with a cover through a lock.
At the second version, the end block is also connectable with the cover by means of a lock when the second elastic component length or angular length is the same as at the device operation configuration and at the same time end block locked at the device case or the same as at the device transportation configuration and when the end block released from the device case this connection can be kept, the end block being controlled either manually by user or automatically by a small electric motor and can be relocated within the range corresponding with the difference between the device transportation configuration and operation configuration positions of the end block connected with a cover through a lock. The lock is automatically or manually unlocked when the end block motion direction is towards the position at which the end block is lockable at the device case.
For both variants, it is valid either that the energy amount contained at the first elastic component at the device operation state, the orientation of the force effect the elastic component applies at the cover and the elastic component position of zero energy contained correspond with the demand of rapid and reliable transfer of the cover and all the movable parts connected to the cover from the operation position to the transportation position. The end block is lockable at the device case at such a position that when the cover is at the transportation position, the energy amount contained at the second elastic component is approximately the same or slightly more than the energy amount necessary for the transfer of the cover and all the movable parts connected to the cover from the transportation position to the operation position and the force effect produced by this energy is of the opposite orientation than the force effect of the cover and optionally other movable parts weight at the device transportation configuration including the energy to be transferred to the first elastic component.
Or the energy amount contained at the first elastic component at the device transportation state is approximately the same or slightly more than the energy amount necessary for the transfer of the cover and all the movable parts connected to the cover from the transportation position to the operation position and the force effect produced by this energy is of the opposite orientation than the force effect of the cover and optionally other movable parts weight at the device transportation configuration. The end block is lockable at the device case at such a position that when the cover is at the operation position, the energy amount contained at the second elastic component, the orientation of the force effect the elastic component applies at the cover and the elastic component position of zero energy contained correspond with the demand of rapid and reliable transfer of the cover and all the movable parts connected to the cover from the operation position to the transportation position including the energy to be transferred to the first elastic component.
For the keyboard movable section operation position locking and for the keyboard movable section-cover mechanical connection excessive loading elimination, extractable-most often horizontally-or swiveling out pins can be applied, their motion being either from the device case into the keyboard movable section or vice versa. The pins can be extractable or swiveling out by means of springs or of rigid links to the cover or to the keyboard movable section or to the device case or to other movable parts, these links transmission ratio being not constant, or by means of electromagnets. If the pins are extractable or swiveling out by means of springs, they are lockable at their retracted position by the keyboard movable section or by the device case, stops unlockable with these parts or mechanically linked to the cover or to these parts or controlled by electromagnets. The pins are retractable or swiveling in by the user through a mechanical link or electromagnet, or automatically. There are the respective niches made at the keyboard movable section or at the device case for the pins. The optional stops are unlockable when the keyboard movable section at the operation position, by this section itself or by means of some other part connected to it.
The pins are extracted or swiveled out during the keyboard movable section transfer to the operation position and retracted or swiveled in during the keyboard movable section transfer to the transportation position, at the operation state the pins are located at the holes or niches made for them at the keyboard movable section or the device case.
For folding hand rest operation position locking and for folding hand rests and folding hand rests - the keyboard movable section or the cover mechanical connection excessive loading elimination, extractable-most often horizontally or slopingly upwards-or swiveling out pins can be applied, the swiveling axis being most often vertical or parallel to the cover rotation axis and the pin motion being from the keyboard movable section or from the device case under the folding hand rests. The pins can be extractable or swiveling out by means of springs or of rigid links to the cover or to the keyboard movable section or to the device case or to other movable parts, these links transmission ratio being not constant, or by means of electromagnets and if the pins are extractable or swiveling out by means of springs, they are lockable at their retracted positions by the keyboard movable section, stops unlockable with the keyboard movable section and/or folding hand rest, either directly by the folding hand rest or through some mechanical link to the pins for the keyboard movable section locking at the operation position or through some other proper mechanism or by electromagnets. Next, the pins are retractable or swiveling in by user either through a mechanical link directly to the pins or to the pin-controlling mechanism or indirectly to the pins for the keyboard movable section locking at the operation position if the pins for hand rest operation position locking are controlled by the pins for the keyboard movable section locking at the operation position or by electromagnets.
The pins are extracted or swiveled out when folding hand rest transferred to the operation position. The optional stops are unlockable with the keyboard movable section or some other part connected to it and/or folding hand rest at the operation position. At the operation position, the pins extractable or swiveling out from the keyboard movable section or the device case are located under the folding hand rests, being either in contact with them or distanced downwards from them by a small clearance only.
If, due to the cover to the keyboard movable section link arrangement, there is impossible enabling the cover further tilting at the device operation state, the cover can be pivotably fitted at a hinge pivotably mounted at the device case. Axes of the rotary joints between the hinge and the cover and between the hinge and the device case are approximately parallel and the cover hinge is connected with the keyboard movable section and optionally with another movable parts.
In such case a pliable member connection of the cover and the device case is useful, the pliable member being led at the cover, the device case and optionally at the cover hinge.
The pliable member is led in such way that at the cover hinge transportation position the trajectory along which the pliable member is led is the shortest when the cover at the transportation position and the pliable member length is equal to this shortest trajectory length, while at the cover hinge operation position the trajectory along which the pliable member is led is shorter then at the cover hinge transportation position. That is why there is no other cover position possible than fully closed when the hinge at the transportation position, but at the operation configuration the cover opening angle is changeable.
Another variant is fitting the cover pivotably at the device case and fitting an auxiliary part coaxially with it and pivotably, the auxiliary part being connected with the keyboard movable section and optionally other movable parts. Both the auxiliary part and the cover have holes or niches at them at which a slide block or a pin can be, this slide block or pin being split or not split and its axis lying approximately at the plane passing through the cover rotation axis. The slide block or the pin can be sliding approximately along its axis or perpendicularly to it, or pivotable about an axis perpedicular to its axis-at these cases it is movable approximately at the plane passing through the cover rotation axis-or pivotable about its axis. There are slots, guides or support surfaces made at the device case near the slide block or the pin, at them being located or supported ends of or projections at the slide block or at the pin.
The ends of or projections at the slide block or at the pin are shaped so that when the cover and the auxiliary part located between trasportation and operation positions or at the trasportation positi-on, the auxiliary part is connected with the cover through the slide block or the pin. At the opera-tion position, the slide block or the pin is located out of the cover, or the split plane of the slide block or pin lies at the cover and the auxiliary part contact plane. The cover and the auxiliary part contact plane is shaped so that the cover opening angle from the transportation position can be equal to or higher than the auxiliary part opening angle from the transportation position.
Brief description of the drawings The invention will be explained by means of drawings. The arrow always marks the motion from the transportation position to the operation position and-..-..-line means the operation position.
At fig. 1 there are three examples of portable computers with the folding keyboard at the transportation state: upper left PC with the keyboard movable section that is in front of the keyboard fixed section at the operation state, right, PC with the keyboard movable section that is at side of the keyboard fixed section at the operation state and above the keyboard fixed section at the transportation state and lower left PC with the keyboard movable section that is at side of the keyboard fixed section at the operation state and under the keyboard fixed section at the transportation state. Next, at fig. 2 the operation state of PC with the keyboard movable section that is at side of the keyboard fixed section at the operation state and above the keyboard fixed section at the transportation state and that of PC with the keyboard movable section that is in front of the keyboard fixed section at the operation state are.
Under it, at fig. 3, PC is with the keyboard movable section fitted at a rotary arm and a slider-the keyboard movable section position can be controlled either through slider translation or through rotary arm rotation at this variant.
At fig. 4 plan views are of three versions of the keyboard movable section fitted at the device case with rotary joints with approximately vertical axes: the first one is fitted at a double rotary hinge with approximately vertical axis along which it can be vertically displacable (rolling of the keyboard movable section cylindrical segment at the device case cylindrical segment without sliding is ensured through cables AA and BB, gearing or other proper means). Another one is the keyboard movable section pivotable and optionally vertically displacable and the last one is the keyboard movable section fitted at a four-joint mechanism with approximately vertical arm axes and vertically displacable along these axes.
At fig. 5 examples are of fitting the keyboard movable section with approximately horizontal axes, parallel with or perpendicular to the cover rotation axis. Up, the keyboard movable section fitted at a double rotary hinge, center, at a four-joint mechanism, down, at a rotary pin. This pin is replaced with a pliable strap at fig. 6.
At fig. 7a and 7b the examples are of the link between the cover and the keyboard movable section with divisible rotary joint. The keyboard movable section is tiltable at version a and vertically displacable at version b. Fig. 8 are the examples of the keyboard movable section and the cover connection with a rotary joint and fig. 9 the link through a rotary joint between the cover and the keyboard fixed section tiltable or vertically displacable.
At fig. 10 two examples of the keyboard movable section to the cover connection through a ball joint are.
Fig. 11 are two ways of connection between the cover and the keyboard movable section through a rod with a divisible rotary joint at one end. Figs. 12 to 16: examples of the links through a rod connected to the cover and to the keyboard movable section by means of a ball joint. The versions with rotary joints are at fig. 13, right, and 15. Fig. 17 shows the connection of the cover and the keyboard fixed section vertically displacable.
Fig. 18: a portable PC with the keyboard movable sections fitted at a double rotary hinge with horizontal axis perpendicular. to the cover rotation axis, the joint of the cover and the double rotary hinge is through a guide-details E and D are two equal variants, shaped so as to enable the cover further tilting at the operation state. Fig. 19: a portable PC with two keyboard movable sections fitted at a four-joint mechanism the arms of which are pivotable about vertical axes and connected to the cover through a cam joint with two-sided circumferential cams, at fig. 20 a detail of a portable PC with the keyboard movable section at a double rotary hinge with horizontal axis perpendicular to the cover rotation axis, the joint of the cover and the double rotary hinge is through a two-sided circumferential cam and at fig. 21 a portable PC with the keyboard movable section fitted at a four-joint mechanism the arms of which are pivotable about horizontal axes perpendicular to the cover rotation axis, the cam joint to the cover through a two-sided circumferential cam. Fig. 22: a portable PC with the keyboard movable section sliding along the cover rotation axis and connected through a cam joint to the cover, this joint being applied for the keyboard movable section vertical displacement, too. Fig. 23: a portable PC with keyboard movable sections fitted pivotably about vertical axes and connected to the cover through cam (right) and guide (left) joints. At fig. 24 a side view of a computer with the keyboard movable section sliding perpendicularly to the cover rotation axis and connected to the cover through two cam joints. PCs with guide joints-the keyboard movable section sliding perpendicularly to the cover rotation axis, fig. 26, and fig. 25 with the keyboard movable section fitted at a double rotary hinge pivotable about an axis parallel to the cover rotation axis. Except for the var. at fig. 20, cam curves or guide couples of all other variants are shaped so as to enable the cover further tilting at the operation state. Next, various versions of mechanism with a lever connected through a ball joint or a rotary joint at one end and a cam joint at the other end. At fig. 27 it is a version with the keyboard movable section fitted at a double rotary hinge with horizontal axis perpendicular to the cover rotation axis, connected with the lever through a guide joint, the lever being connected through a ball joint to the cover and led in an eye at the device case. Fig. 28 is the same except for the keyboard movable section is pivotable about a vertical axis. At fig. 29, the keyboard movable section is straightly sliding along the cover rotation axis and the lever pivotably mounted at an arm that is pivotably mounted at the device case. Fig. 30 (the keyboard movable section pivotable about an axis parallel to the cover rotation axis and two keyboard movable sections straightly sliding perpendicularly to the cover rotation axis) the lever is pivotably and slidingly fitted at the device case and to the cover (30a and 30b) connected through a rotary joint and to the keyboard movable section through a guide joint, or (30c) the lever is connected to the cover through a guide joint and to the keyboard movable section through a rotary joint. Mechanisms with the transmission through a lever with guide joints at both ends: fig. 31-with the keyboard movable section at a double rotary hinge that is pivotable about a horizontal axis perpendicular to the cover rotation axis and fig. 35-version with the keyboard movable section at a double rotary hinge that is pivotable about an axis parallel to the cover rotation axis, at both pictures the lever is fitted pivotably, fig. 32-the keyboard movable section at a four-joint mechanism with arms pivotable about horizontal axes perpendicular to the cover rotation axis and fig. 33-version with the keyboard movable section at a four-joint mechanism with arms pivotable about axes parallel to the cover rotation axis, at both pictures the lever is fitted slidingly, fig. 34-the lever at two arms that are pivotable about axes of the same direction, fig. 38-lever fitted at two eyes, at both pictures the keyboard movable section is pivotable about a horizontal axis perpendicular to the cover rotation axis, fig. 36-the lever fitted pivotably about an axis parallel to the cover rotation axis and fig. 37-the lever fitted at a rotary arm and led in a rotary-translating joint, at both pictures the keyboard movable section is pivotable about an axis parallel to the cover rotation axis, fig. 39-the lever fitted at two rotary arms and fig. 40-the lever led at two eyes, at both pictures the keyboard movable section is straightly sliding perpendicularly to the cover rotation axis. Fig. 41-the lever mounted pivotably about a vertical axis, fig. 44-the lever fitted at two pivotable arms, each of them having a rotary joint at one end and a ball joint at the other, figs. 42 and 43-the lever mounted slidingly, at all four pictures the keyboard movable section is straightly sliding along the cover rotation axis, fig. 46-the keyboard movable section mounted at a four-joint mechanism the arms of which are pivotable about vertical axes, the lever mounted slidingly, fig. 45-the lever fitted pivotably about a vertical axis at an arm pivotably about a horizontal axis mounted at the device case, fig. 47-the lever fitted at two arms that are connected through rotary joints with approximately vertical axes with the lever and with a pin mounted at the device case pivotably about a horizontal axis, fig. 48-the lever mounted at a pivotable arm and led at an eye, at all three last pictures the keyboard movable section is mounted pivotably about a vertical axis. Figs. 49 to 55: various versions of the cover and the keyboard fixed section connection, fig. 56-the connection of the keyboard movable section and the keyboard fixed section for mutual tilt transfer, fig. 58-ensuring the keyboard movable section vertical displacement and fig. 57-ensuring the keyboard movable section tilting.
Figs. 59 to 63: cover and the keyboard movable section connection by means of a lever with rotary-translating joints at its ends, at figs. 59 to 61 one of the joints is a ball joint and at fig. 61 the joints between the lever and the keyboard movable section are translation joints. Fig. 64: the cover and the keyboard movable section double rotary hinge connection, at fig. 65 the connection of the cover and the hub in which the keyboard movable section is slidingly mounted-at both cases through a pair of levers mounted pivotably and connected with a ball joint, at figs. 66 and 67 the connection of the cover and the keyboard movable section straightly sliding and fig. 68- the connection of the cover and the keyboard fixed section vertically displacable, through the same way. At fig. 69 there is a connection of the cover and the keyboard movable section tiltable about an axis parallel to the cover rotation axis and straightly sliding along the same axis, the connection being a thread transmission. The same way is used for the connection of the cover and the keyboard movable section pivotable about a vertical axis-fig. 70. At fig. 71 the keyboard movable section is mounted at a four-joint mechanism the arms of which are pivotable about horizontal axes perpendicular to the cover rotation axis, one of them being connected through a ball joint with a nut that is secured against rotation by means of a guideway at the device case.
Figs. 72 to 75: the connection of the cover and the keyboard movable section through slotted hub and a bar with projections. Fig. 74 shows the variant with the hub connected with the cover, fig. 75 the variant with the bar connected with the cover through a ball joint-in such case the bar must be secured against rotation by means of a guideway at the device case. The cover and the keyboard movable section connection by means of gears : Figs. 76 and 77 show various versions of conical gear transmission between the cover and the keyboard movable section pivotable about a vertical axis respective to the keyboard movable section vertical displacement solution.
The same transmission type is at fig. 78-gear ratio approximately 3: 1-the pinion of which has deleted some teeth-after reaching the necessary turn angle of the keyboard movable section, this is no further movable, the cover being tiltable on. The transmission through spiral gearing-at fig. 79 it has gear ratio approximately 2: 1, at fig. 80 1: 1. Figs. 82 and 81 : worm gearing transmissions-the keyboard movable section fitted at four-joint mechanisms with the arms pivotable about vertical axes, at fig. 81 the worm wheel is designed as a lever with a sheave. At fig. 83 the link between the cover and the keyboard movable section double rotary hinge pivotable about an axis parallel to the cover rotation axis is a spur gearing. At fig. 84 the rack transmission is between the cover and the keyboard movable section straightly sliding perpendicularly to the cover rotation axis, the rack being only sliding along its axis. Fig. 85 : <BR> <BR> similar version, but with the rack fixed to the keyboard movable section and tilted by means of a<BR> cam connected with a cover. At figs. 86 and 87 the rack gearing has tooth angle 45 deg, at fig. 86 it controls the keyboard movable section vertical displacement and at fig. 87 both the rack and the keyboard movable section are sliding along the cover rotation axis. At figs. 88 and 89 the links of the cover and the keyboard fixed section vertically displacable (through rack gearing) or tiltable (through cylindrical gearing) are. The transmissions with a toothed pliable component and with cables: for the keyboard movable section pivotable about a vertical axis, at fig. 95 the transmission with a toothed pliable component (right) and with cables (left), for the keyboard movable section at a double rotary hinge pivotable about a horizontal axis perpendicular to the cover rotation axis, at fig. 94 the transmission with a toothed pliable component (left) and with cables (right), at fig. 93 a cable transmission for the keyboard movable section straightly sliding along the cover rotation axis and at fig. 92 the keyboard movable section vertical displacement is controlled through a cable. At figs. 90 and 91 a cable transmission for the keyboard fixed section vertically displacable (at fig. 90 simple one with a guideway and at fig. 91 double) or tiltable (similarly as at fig. 90) is. At fig. 98 a cable transmission for the keyboard movable section straightly sliding perpendicularly to the cover rotation axis and vertically displacable is. Fig. 97 shows a cable transmission for the keyboard movable section at a double rotary hinge pivotable about an axis parallel to the cover rotation axis. At fig. 96 a transmission with a toothed pliable component, a toothed belt or a chain is, including a detail of the crossover for the belt or the chain-the keyboard movable section is pivotable about an axis parallel to the cover rotation axis. At figs. 99 to 101 a connection of the cover and the keyboard movable section or the keyboard movable section double rotary hinge through torsionally stiff and pliable member, the same being used at fig. 102 for binding together the keyboard movable section and the keyboard fixed section tilting.
A variants with plates with cuts at their perimeters: at figs. 103 to 105 the first plate perimeter is at the cut at the second plate/bar perimeter-the cover and the keyboard movable section motion is drawn phased at: transportation state-cover opened-the keyboard movable section at the operation state. The arrow always marks the motion from the previous phase. Fig. 103 is a portable PC with the keyboard movable section pivotable about a horizontal axis perpendicular to the cover rotation axis, fig. 104 is a portable PC with the keyboard movable section pivotable about the vertical axis, where the keyboard movable section motion is drawn at two phases-the keyboard movable section turn and the keyboard movable section vertical displacement. Fig. 105 is a portable PC with the keyboard movable section straightly sliding along the cover rotation axis. Next, a lot of variants with the plates more distanced and connected via lever is drawn. At fig. 106 it is a version for the keyboard movable section straightly sliding perpendicularly to the cover rotation axis (two versions), at fig. 107 versions for the keyboard movable section pivotable about an axis parallel to the cover rotation axis, the lever being movable approximately at the plane of the plates, at fig. 108 the versions are for the same keyboard movable section arrangement, the lever being movable outside the plane of the plates. Fig. 109 are the examples for the plates pivotable about concurrent or skew axes.
Fig. 110 : various versions of the connection of the cover and the keyboard movable section pivotable about a vertical axis, where the cover is either directly or via some transmission connected with a shaft connected to the keyboard movable section through a ball joint or some other connection that is arranged so that the keyboard movable section vertical position is fully or partially given by the lever turn angle. At the picture beginning, above, a portable PC is with marking of the section views used at particular variant sketches and a general kinematics scheme of this variant of connection between the cover and the keyboard movable section pivotable about a vertical axis. Next, various variants of this link are sketched, always with a kinematics scheme and a technical sketch.
At fig. 111 an example is of a support surface application-the keyboard movable section lower surface and the keyboard fixed section upper surface are used for this. Figs. 112 and 113 are the examples of auxiliary part application-for a vertically displacable part in the first case and for a tiltable one in the second case. Fig. 114-two versions of mounting the keyboard movable section pivotable about an approximately vertical axis at the Cardan joint. Figs. 115 and 116 are the examples of the keyboard movable section mounting with a vertically displacable segment-the first of them for the keyboard movable section mounted pivotably about an approximately vertical axis and the second for the keyboard movable section approximately straightly sliding along the cover rotation axis, same as at fig. 117, at which the keyboard movable section is mounted at the slot with an inclined segment. Figs. 118 to 121 show the versions of the keyboard movable section mounting with the vertical displacement (figs. 118 and 120) or tilt (figs. 119 and 121) control through an inclined surface at the device case and figs. 122 to 124, always in the version a for the keyboard movable section straightly sliding along the cover rotation axis and the version b for the keyboard movable section pivotable about a vertical axis, show the vertical displacement or tilt control by means of the auxiliary part, the keyboard movable section vertical displacement or tilt and a horizontal motion being sequenced. At figs. 125 to 128, the keyboard movable section straightly sliding is mounted at levers at auxiliary parts. Fig. 129 shows the cover connection to the tiltable keyboard fixed section through a scissors mechanism with one arm of a half length, the arms lying at a plane perpendicular to the cover rotation axis and figs. 130 to 134 the keyboard movable section tilt control through the same mechanism. Version of the keyboard movable section tilt control through the scissors mechanism, but with the equally long arms lying at a plane parallel to the cover rotation axis are at figs. 135 to 140-at fig. 138 is also the version b with the keyboard movable section vertical displacement control, which is also at figs. 141 and 142-the arms lie at the first case at a plane parallel with and at the second case at a plane perpendicular to the cover rotation axis. At fig. 143 a link is between the cover and the keyboard fixed section vertically displacable. The examples of an elastic component fitted between the cover and the keyboard section are at fig. 144-the keyboard fixed section vertically displacable and at fig. 145-the keyboard movable section straightly sliding. A rotary joint between the keyboard movable section and the keyboard fixed section is at fig. 146. The link of the keyboard movable section and the keyboard fixed section through a lever is at figs. 147 to 157, from them figs. 151 and 152 show the keyboard movable section vertically displacable and straightly sliding perpendicularly to the cover rotation axis, at the rest of the pictures the keyboard movable section is sliding along the cover rotation axis and tiltable about an axis parallel to it. At figs. 147 to 152,156 and 157 the lever arms are movable at a plane perpendicular to the cover rotation axis, at the rest of the pictures at the plane parallel to this axis. At figs. 147, 149,151, 153 and 157 the lever is pivotably mounted at the auxiliary part, at figs. 148,152 and 154 pivotably at the device case, at figs. 150 and 156 pivotably and slidingly at the device case and at fig. 155 at the device case through a ball joint. The link between the keyboard movable section and the keyboard fixed section through a rod is at figs. 158 to 161. At the first two of them the keyboard movable section is sliding along the cover rotation axis, at the last two ones perpendicularly to this axis. At the pictures of an odd number the rod is fitted at the keyboard fixed section, at the rest of them at the keyboard movable section. Figs. 162 to 165 show the link between the cover and the keyboard movable section through a toothed pliable component-the first three for the keyboard movable section sliding along the cover rotation axis, the last for the keyboard movable section pivotable about approximately vertical axis. At figs. 162,163 and 165 one pulley is fixed to the keyboard movable section and the other pivotably mounted at the auxiliary part and connectable to the keyboard fixed section through a couple rectangular shaft- hub (fig. 162) or through a pair of curved pins mounted at the keyboard fixed section and pivotably about approximately vertical axis and slidingly (fig. 163) or slidingly only (fig. 165) insertable into holes at the pulley when the keyboard movable section is at plan operation position. At fig. 164 one pulley is fixed to the keyboard fixed section and the other pivotably mounted at the device case and connectable to the keyboard movable section through a pin vertically insertable into the niche at the keyboard movable section.
At figs. 166 to 171 the links of the cover and the device case with an elastic component fixed at the device case are. Fig. 172 and the detail at fig. 174 show the connection of the cover and the device case with an elastic component the position of the end of which is changeable directly by user, at figs. 173 to 176 the spring end position at the connection of the cover and the device case with an elastic component is changeable by means of a cam, at figs. 177 to 185 by means of a cam follower, at fig. 186 by means of a worm transmission, at figs. 187 and 188 by means of thread transmissions and at fig. 189 by means of a lever. At fig. 190 two versions of the connection of the cover and the device case with two elastic components are, drawn at motion particular phases (marked at the picture fl to f5, or to f6): at left the version a is, where the spring connected to the cover and to the device case is in operation during the cover opening and the end block is translated at the operation state, at right the version b is, where the spring connected to the cover and to the device case is in operation during the cover closing and the end block is translated at the transportation state. The force at the spring is marked F and its direction is shown by the arrow. Figs. 191 to 194 are the examples of the keyboard movable section locking at the operation position with pins extractable or swiveling out from the keyboard movable section or from the device case. At fig. 195 a connection of the device case to the cover mounted at the hinge is, the connection being through a pliable member. Fig. 196 shows coaxial fitting of the cover and the auxiliary part that is connected with the keyboard movable section and their shape for ensuring of their mutual connection and connection to the device case by means of a split pin that is movable along its axis approximately at the plane passing through the cover rotation axis. Fig. 197 shows the same for a pin that is not split and led at the projections at one its end. Fig. 198 shows various versions of the connection of the coaxially fitted cover and the auxiliary part by means of a pin that is sliding perpendicularly to its axis or pivotable about an axis perpendicular to its axis and fig. 199 shows the connection of the coaxial fitted cover and the auxiliary part by means of a pin with a projection, the pin being pivotable about its axis.
Detailed description of the invention Fig. 7-a divisible rotary joint 9 between the cover 3 and the keyboard movable section 1 for the control of tilting (fig. 7a) or of the vertical displacement (fig. 7b) of the keyboard movable section 1 sliding along the cover 3 rotation axis and guided at the rotary-translating joint 11 (fig. 7a), or at the sliding guideway 10 (fig. 7b). Fig. 8-the keyboard movable section 1 fitted at the device case either through the rotary-translating joint 11 or at the arm 7 with rotary joints 9 at both ends or at the sheave 34 fitted at the device case pivotably. Fig. 9, the rotary joint 9 is the connection of the cover 3 and the keyboard fixed section 5 that is vertically displacable and fitted at the device case by means of the translation guideway 10, this being double, or the keyboard fixed section 5 that is tiltable and fitted at the device case by means of the rotary-translating joint 11.
At fig. l0a the keyboard movable section 1 is connected through the ball joint 8 to the cover 3 and fitted at the device case by means of the ball joint 8, which in this case is vertically displacable at the translation guideway 10, and by means of guiding at an eye 19 through which the strap 23 fitted at the keyboard movable section 1 bottom is led. The variant 10b shows the keyboard movable section 1 fitted at the auxiliary part 4 by means of the rotary-translating joint 11. At this variant, the keyboard movable section 1 is not tiltable about the axis parallel with the direction of the translation possible at this joint. At this case the keyboard movable section 1 is vertically displacable as the auxiliary part 4 is fitted at the device case by means of the rotary- translating joint 11.
Rod links at figs. 11 to 17: fig. 11-through the rod 13 with the rotary joint 9 at each end, one of them being divisible and made in the form of an eye 19 at the rod 13 end, the tilting or the vertical displacement of the keyboard movable section 1 is controlled. At fig. 1 la, the rod 13 is fitted at the keyboard movable section 1, at fig. 1 lb at the cover 3. At figs. 12 to 16 one end of the rod 13 is fitted through the ball joint 8 to the cover 3 at one end and at the other end to the keyboard movable section 1 or to the arm 7 or to the double rotary hinge 6. At figs. 13 and 15 there are also variants with the rotary joint 9 at the rod 13 ends and at fig. 17 the connection of the cover 3 by means of the rod 13 to the keyboard fixed section 5.
The link between the cover 3 and the keyboard movable section 1 using the cam joint is at figs. 19, 21,22, 23 right and 24. The cam trajectory lies on the lateral area of the cylinder the axis of which is coincident with the cover 3 rotation axis in case the keyboard movable section 1 or the auxiliary part 4 is approximately linearly translating parallelly to the cover 3 rotation axis- fig. 22 where the cam joint is used also to control the keyboard movable section 1 vertical displacement at its plan operation position. The cam trajectory lies at the plane perpendicular to the cover 3 rotation axis in case the keyboard movable section 1 and/or the auxiliary part 4 is movable at the plane perpendicular to the cover 3 rotation axis-fig. 24, where there are two cam joints, one of them locating the keyboard movable section 1 in the horizontal plane and the other vertically. If the keyboard movable section 1 or the auxiliary part 4 is mounted pivotably the cam trajectory is created approximately on the surface created with basic curve rotation about the rotation axis of the part at which the cam trajectory is created, the basic curve being a circular arc identical with the cam follower 16 motion trajectory between its limit locations-see the figs. 19, 21 and 23 right. It is also possible to make the cam joint 12 as a couple of the guide 18 and the slide block 17. This is at fig. 20 and 25. If the keyboard movable section 1 or the auxiliary part 4 is pivotable about an axis approximately perpendicular to the cover 3 rotation axis, the guide 18 can be geared with the bar 24, their axes being approximately concurrent lines lying at the planes perpendicular to the respective part rotation axes-fig. 23 left and 26, where the couples of the guide 18 and the bar 24 are modified to give the vertical displacement possibility to the keyboard movable section 1, and fig. 18.
The cam joint 12 can be used to connect one or both ends of the lever 14, which is mounted at the device case 2, to the cover 3 and/or the keyboard movable section 1 or the auxiliary part 4. If the lever 14 has the cam joint at one end, it is led at the eye 19 at the device case 2, see the figs. 27 and 28 or fitted pivotably or spherically to the arm 7 that is spherically or pivotably mounted at the device case 2, see the fig. 29. If the keyboard movable section 1. is movable perpendicularly to the cover 3 rotation axis, one joint is pivotable about an axis that is parallel to the cover 3 rotation axis and the lever 14 is mounted at the device case 2 by means of the rotary- translating joint 11, see the fig. 30. If the cam joint 12 is at both ends of the lever 14, the lever 14 must be mounted at the device case 2 so that it has one degree of freedom. This can be got e. g. when the lever 14 is mounted at the device case 2 pivotably-see figs. 31, 35, 36,41 and 45, or the lever 14 can be mounted slidingly either at the slot 20-in such case both the lever 14 and the slot 20 are straight-figs. 33 and 42, or have the shape of the circular arc-figs. 32,43 and 46, or slidingly at least at two eyes 19-in such case the lever 14 can be shaped anyway-see the figs. 38 and 40. Another possibility is mounting of the lever 14 pivotably or spherically at two arms 7 spherically or pivotably mounted at the device case 2 so that they together are the four- joint mechanism-figs. 34, 39, 44 and 47, or using a combination of a sliding and a four-j oint mounting, i. e. leading at the eye 19 and spherical or pivotable mounting at the arm 7 that is mounted pivotably-fig. 48 and if the keyboard movable section 1 or the auxiliary part 4 is movable perpendicularly to the cover 3 rotation axis, the eye 19 can be replaced by the rotary- translating joint 11-fig. 37. The possible vertical displacement of the keyboard movable section 1 can be enabled by the arrangement of the lever 14 mounting itself, if there is a possibility of tilting and optionally a vertical displacement of its ends at the cam joints. This can be got e. g. when both the arms 7 at which the lever 14 is fitted lie approximately at the horizontal plane and are mounted pivotably at the pin 21 that is mounted at the device case 2 pivotably about approximately horizontal axis-fig. 47 or when some joints of the arm 7 mounting is spherical- fig. 44 or at the Cardan joint, or mounting the lever 14 at the arm 7 that is approximately horizontal and mounted at the device case pivotably about approximately horizontal axis, so the end of the lever 14 is vertically displacable during turning the arm 7-fig. 45. The cam joints or the links using the lever 14 with the cam joints at one or both ends that are used for the connection of the cover 3 and the keyboard fixed section 5 are at the figs. 49 to 55. At the figs. 49 and 55 a connection through a guide couple is shown, at the first of them the keyboard fixed section 5 is vertically displacable and mounted at two arms 7 and at the other the joint is double and the keyboard fixed section 5 is led at the eye 19 at the device case 2 at the horizontal plane only. At the figs. 50 a 52 the cam joints are, at the first one with the cam 15 one-sided and at the second one with two-sided, always for the keyboard fixed section 5 that is vertically displacable and led by the translation guideway 10 at the device case 2 and for the keyboard movable section 1 tiltable and fitted at the device case 2 by means of the rotary joint 9. At both cases, the cam 15 is fixed to the cover 3. At fig. 51 the cam 15 is straightly sliding, connected to the cover 3 by means of divisible joint, the rotary joint 9. At fig. 53 the lever 14 is connected to the cover 3 by means of the rotary joint 9 and to the keyboard fixed section 5 through a guide couple, mounted at the device case 2 through the rotary-translating joint 11, the keyboard fixed section 5 being mounted at the device case 2 by means of two arms 7. At fig. 54 the lever 14 is connected to the cover 3 by means of the cam joint and to the keyboard fixed section 5 through a guide couple, the keyboard fixed section 5 being mounted at the device case 2 by means of the translation guideway 10 and the lever 14 being led at the slot 20 the shape of which is circular and one side of which consists of two sheaves 34. A similar arrangement is at fig. 58, used for the keyboard movable section 1 vertical displacement control-the lever 14 is mounted at the auxiliary part 4.
The application of the cam joint for the control of the keyboard movable section 1 tilting is at fig. 57. At fig. 56 the tilting of the keyboard movable section 1 and the keyboard fixed section 5 is bound together by means of two guide couples (the guide 18 at the keyboard fixed section 5 is extruded parallelly to the cover rotation axis and at the guide 18 at the keyboard movable section 1 tilting of two slide blocks 17 connected together is disabled).
The link at figs. 59 to 63 consists of the lever 14 fitted at the cover 3 pivotably about an axis that is approximately parallel to the cover 3 rotation axis and slidingly along this axis and at the other end mounted at the keyboard movable section 1 or the auxiliary part 4 pivotably about and slidingly along an axis approximately parallel to the keyboard movable section 1 or the auxiliary part 4 rotation axis or, if the keyboard movable section 1 or the auxiliary part 4 is approximately straightly sliding, about and along a vertical axis. Instead of one of the rotary-translating joints 11 a ball joint 8 can be used (fig. 61)-this arrangement of the connection of the lever 14 and the cover 3 is necessary in case the keyboard movable section 1 or the auxiliary part 4 is approximately straightly sliding approximately parallelly to the cover 3 rotation axis-fig. 59, on the contrary in case the keyboard section 1, 5 or the auxiliary part 4 is approximately straightly sliding approximately perpendicularly to the cover 3 rotation axis, this connection can be simplified to the rotary joint 9 and the connection of the lever and the keyboard section to the translation guideway 10-fig. 60.
At the figs. 64 to 68 another link is shown that consists of two levers 14, one of them being fitted to the cover 3 and the other to the keyboard movable section 1 or to the auxiliary part 4 (fig. 64 where the auxiliary part is the double rotary hinge 6 and fig. 65), in both cases through a rotary joint 9 the axis of which is approximately perpendicular to the rotation axis of the part at which the lever 14 is fitted. The levers 14 are connected together by means of a ball joint 8. If the keyboard movable section 1 or the auxiliary part 4 is approximately straightly and horizontally sliding, the lever 14 is fitted at it by means of a rotary joint 9 the axis of which is approximately vertical-see the figs. 66 and 67. If the cover 3 and the keyboard fixed section 5 are connected through the link with two levers 14, the keyboard fixed section 5 being vertically displacable or tiltable, the lever 14 is connected to it by means of the rotary joint 9 the axis of which is approximately perpendicular to the cover 3 rotation axis and horizontal, as shown at fig. 6 8.
The links at the figs. 69 to 75 are based on the thread transmission principle. The first one, consisting of a thread transmission, is shown at the figs. 69 to 71. At the cover 3 a thread is created, either outer-the bolt 27, or inner-the nut 28, so that the thread axis is identical with the cover 3 rotation axis. The second member of the thread couple, connected with the keyboard movable section 1 or the auxiliary part 4, is geared with the first one. At fig. 69 the bolt 27 is connected to the keyboard movable section 1 by means of the arm 7 of the crank shape and the rotary joint 9 and the keyboard movable section 1 is mounted at the auxiliary part 4 through the translation guideway 10 (double) and tiltable relatively to the device case 2. In another case, shown at fig. 70, the second member of the thread couple is mounted pivotably about an axis parallel to the keyboard movable section 1 rotation axis and slidingly along this axis-by means of the rotary-translating joint 11. At fig. 71 the nut 28 is connected by means of a ball joint 8 with one of the arms 7 that are-together with the keyboard movable section 1-the members of the four-joint mechanism. The second link based on the helical principle, shown at the figs. 72 to 75, consists of two members, one of them being a bar 24 with radial projections 26 that is fitted to the cover 3 by means of the ball joint 8 like at fig. 75, or by means of the rotary joint 9 with the axis parallel to the cover 3 rotation axis, or-at fig. 74-fixed to the keyboard movable section 1 at one end and having the projections 26 at the other end, the projections being geared with the slots 20 of a helical shape in the hub 25 that is fixed to and coaxial with the keyboard movable section 1 or-at fig. 74-with the cover 3 by means of the rotary joint 9 with the axis parallel to the cover 3 rotation axis. At fig. 75 where the bar 24 is fitted spherically to the cover 3, it is led at the device case 2 in the translation guideway 10 through which a rotation of the bar 24 about its own axis is disabled.
The link of the cover 3 and the keyboard movable section 1 can consist of a pair of gears or geared segments, the gearing being worm-figs. 81 and 82, conical or hypoid-figs. 76,77 and 78, or spiral type-figs. 79 and 80. The pinion 29 or the worm 31 is fixed to the cover 3 so that its axis is identical with the cover 3 rotation axis. Some teeth can be deleted at the pinion 29 or the worm 31, see fig. 78. The axis of the toothed wheel 30 or of the worm wheel 32 that can be made as the lever 14 with the sheave 34, see fig. 81, is identical with the keyboard movable section 1 or the auxiliary part 4 rotation axis, and the toothed wheel 30 or the worm wheel 32 is fitted to the keyboard movable section 1 or the auxiliary part 4, either rigidly like at figs. 78 and 79 if the keyboard movable section 1 or the auxiliary part 4 rotation axis is approximately horizontal and the keyboard movable section 1 is not tiltable and rigidly or slidingly if this axis is approximately vertical-in such case the keyboard movable section 1 vertical displacement or tilting must be possible at the connection of the keyboard movable section 1 and the toothed wheel 30 or the worm wheel 32 like at fig. 76, or this vertical displacement-figs. 80 and 82 or tilting-fig. 81 must be enabled with the keyboard movable section 1 fitting arrangement, or with the gearing arrangement like at fig. 77.
The link of the cover 3 and the keyboard movable section 1 can consist of a pair of gears or geared segments, the gearing being spur type and the pinion 29 of it can have deleted some teeth and is fixed to the cover 3 so that its axis is identical with the cover 3 rotation axis and the toothed wheel 30 is fixed to the keyboard fixed section 5 that is tiltable-at fig. 89, the keyboard movable section 1 or the auxiliary part that is the double rotary hinge 6 at fig. 83.
The link can consist of a rack gearing with straight-see the figs. 84,85 and 88-or helical-see the figs. 86 and 87-teeth, the pinion 29 of it can have deleted some teeth or be made as toothed segment and is fixed to the cover 3 so that its axis is identical with the cover 3 rotation axis. And the toothed rack 33 is fixed to the keyboard fixed section 5 that is vertically displacable like at fig. 88, to the keyboard movable section 1-at fig. 85 or to the auxiliary part 4-fig. 84 and is mounted at the device case 2 in order to be only sliding along its axis like at fig. 84, or tiltable about an axis that is perpendicular to the plane of the toothed rack 33 teeth profile, fig. 85, where the tilting is controllable by means of the cam 15 connected to the elastic component 35 and with the position determined by the rod 13 that is in contact with the projection 26 at the cam 15 at the state close to the operation state and at the operation state and connected through the rotary joint 9 to the cover 3. The vertical displacement or tilting of the keyboard movable section 1 is possible in case of the keyboard movable section 1 that is straightly sliding by using the translation guideway 10 like at figs. 87 and 84. At fig. 86 there is a link of the cover 3 and the keyboard movable section 1 vertically displacable that consists of the rack gearing with helical teeth through which the keyboard movable section 1 vertical displacement is controlled. The gearing helix angle resulted from the ratio between the cover 3 opening speed and the speed of approximately horizontal translation of the keyboard movable section 1 mounted at the auxiliary part 4, from the need of the toothed rack 33 teeth insertion among the pinion 29 teeth.
Another three links are based on pliable component. First, it is the link through the toothed pliable component 36, the driving pulley 38 of it can have deleted some teeth and is fixed to the cover 3 so that its axis is identical with the cover 3 rotation axis. This link is at figs. 95 right, 94 left and 96. And the driven pulley 39 is connected to the keyboard movable section 1 or to the auxiliary part 4 either rigidly-like at fig. 96 and fig. 94 left, where it is fixed to the double rotary hinge 6-if the rotation axis of the keyboard movable section 1 or the auxiliary part 4 is approximately horizontal and rigidly or slidingly if this axis is approximately vertical-in such case approximately vertical motion or tilting of the keyboard movable section 1 must be enabled at the connection of the driven pulley 39 to the keyboard movable section 1 or the auxiliary part 4 like at fig. 95 right-here the translation guideway 10 is applied. At the same time, if the driven pulley 39 rotation orientation shall be opposite to that of the driving pulley 38 like at fig. 96, the toothed pliable component 36 must be able to work at twisted or slightly transversely bent state, too, the same is needed if the axes of the driving pulley 38 and the driven pulley 39 are not parallel-fig. 95 right and 94 left-in such case it must be led across sheaves 34 (at fig. 95 right and at fig. 94 left) or sliders 40 (fig. 94 left and 96-variant for the chain).
Another link that uses the pliable component is based on cables 37 fixed always not at the rotation axis to the cover 3 at one end and to the keyboard movable section 1 at the other-fig. 92, where through the cable 37 led across the sheave 34 at the auxiliary part 4 the vertical displacement of the keyboard movable section 1 is controlled, fig. 95 left and 93, or to the auxiliary part 4 at which the keyboard movable section 1 is mounted (fig. 98 and two figs. where the auxiliary part is the double rotary hinge 6-97 a 94 right), or to the keyboard fixed section 5- figs. 90 and 91, where at fig. 90 one cable 37 and the translation guideway 10 is applied and at fig. 91 two cables 37 are applied and the translation guideway 10 is used only for the keyboard section stabilization. The locations of LI and L2 cables fixing at the sheave 34 near the cover 3 are marked by the short line and the numbers 1 and 2. The same like at fig. 92, only one cable 37 is used. If the keyboard movable section 1 or the auxiliary part 4 is straightly sliding, at least one of the cables 37 must be led across the sheave 34 or the slider 40 or the lever 14 with two arms, which enables the link between the cover 3 opening and the keyboard movable section 1 sliding out. This arrangement is shown at figs. 92 and 98. The optional vertical displacement of the keyboard movable section 1 is enabled due to the cable transmission geometry like at fig. 95 left (suitably shaped sliders 40 applied) or through fitting the cable 37 or the sheave 34 or is possible due to the keyboard movable section 1 mounting parts arrangement like at figs. 92 and 98.
The last type of the link that uses the pliable component is the connection of the cover 3 and the keyboard movable section 1 or the keyboard movable section 1 and the keyboard fixed section 5 through the torsionally stiff and pliable component 41 one end of which is fitted at the cover 3 or at the keyboard fixed section 5-fig. 102 and the other at the keyboard movable section 1 or the auxiliary part 4-at fig. 99 and figs. 100 and 101, where the auxiliary part is the double rotary hinge 6. The optional vertical displacement of the keyboard movable section 1 is enabled at its mounting parts-fig. 99.
At figs. 103 and 104 the examples are shown of the link of the cover 3 and the keyboard movable section 1 consisting of two plates 49 with circular edges. One of them is fitted at the cover 3 so that its axis is identical with the cover rotation axis and the second is connected to the keyboard movable section 1 unrevolvably and lies at a plane passing through the cover 3 rotation axis.
Next, the second plate 49 is connected to the elastic component 35-at both pictures a spiral spring is used. The circular edge of the first plate 49 has a cut 50 at its perimeter, the shape of the cut 50 being such that edge of the second plate 49 is able to pass through it. At the second plate 49, the cut 50 through which the circular edge of the first plate 49 is able to pass is used for a lock for locking the keyboard movable section 1 at the operation position. At the shown examples the lock consists of the arm 7 with the projection 26 and the pushing spring 35. At fig. 103 the keyboard movable section 1 is pivotable about the axis that is horizontal and perpendicular to the cover rotation axis, at fig. 104 it is pivotable about vertical axis and vertically displacable. At each picture several states are shown: the first is the transportation one, where the circular edge of the first plate 49 passes through the cut 50 at the circular edge of the second plate 49, at the second the beginning of the keyboard movable section 1 opening is and the third is the operation one (at fig. 104 the operation state is at the forth picture and the third is the horizontal position of the keyboard movable section 1 that is identical with that of the operation state, at both these pictures the lock is in action). At fig. 105 the version is with the keyboard movable section 1 that is straightly sliding along the cover 3 rotation axis, the bar 24 being fixed to the keyboard movable section 1. The circular edge of the first plate 49 has a cut 50 at its perimeter, the shape of the cut 50 being such that the straight edge of the bar 24 is able to pass through it. With the bar 24, the elastic component 35 is connected-here it is a pushing spring. At the bar 24, the cut 50 through which the circular edge of the first plate 49 is able to pass is used for a lock: it consists of the pin 21. The phases are the same as at fig. 103.
If the edges of the first and the second plate 49 or of the first plate 49 and the bar 24 have no intersection, the lever 14 mounted at the device case 2 at the mounting with one degree of freedom is inserted between them. The circular edge of the first plate 49 has the cut 50 or the projection 26 at its perimeter, the shape of the cut 50 or the projection 26 being such that one end of the lever 14 was able to be in it or at it, the second end being supported at the circular edge of the second plate 49 or the bar 24, them having such the cut 50 at the perimeter that if the second end of the lever 14 is in it, its first end is supported at the first plate 49 edge. Fig. 106-two variants of this link workmanship for the keyboard movable section 1 straightly sliding perpendicularly to the cover 3 rotation axis : with the cut 50 (the lever 14, one end of which is in the cut 50 at the bar 24, is mounted at the leaf spring at two supports, the lock is the end of the pushing spring 35) and with the projection 26 (the lever 14 at the pushing spring 35). At fig. 107 there are variants for the keyboard movable section 1 pivotable about an axis parallel to the cover 3 rotation axis, the lever 14 being movable at the plane of the first and the second plate 49, at fig. 108 there are variants for the same the keyboard movable section 1, the lever 14 being movable out of the plate plane. Fig. 109 are the examples of the workmanship for the plates 49 pivotable about concurrent or skew axes.
At fig. 110 there is a link of the cover 3 and the keyboard movable section 1 pivotable about approximately vertical axis. It is arranged according to the kinematics scheme drawn beside the sketch of a portable PC with marking of the used views and sections. The link basic components are the shaft 42, that is approximately horizontal and connected to the cover 3 rigidly or through the transmission 43 at which the cover 3 rotation is multiplied, and connected with the shaft 42 that is connected rigidly or radially slidingly and/or pivotably to the keyboard movable section 1, always not at the rotation axis of each part, by means of the ball joint 8 (the basic scheme), the cam joint 12 (var. b, d, e, f and g), or the Cardan joint 22 (var. a and c). The kinematics of the joint is such that during all the rotation of the transmission 43 connected to the cover 3 or at least during a part of it not only the keyboard movable section 1 turn angle is dependent on turn angle of the shaft 42 connected to the cover 3 but also the keyboard movable section 1 vertical position. This means that the keyboard movable section 1 is mounted at the device case 2 always pivotably about and slidingly along the vertical axis. More detailed description of particular variants : 110a : Drawn at the operation state. The shaft 42 connected to the cover 3 has at its end the slide block 17 of the guide couple for the cover 3 rotation multiplication by the factor 2. The guide 18 of this couple is mounted at the device case 2 and connected through the rotary joint 9, the axis of which is parallel to the cover 3 rotation axis, to the eye 19 which is through the rotary joint 9 with vertical rotation axis connected to the shaft 42 mounted at the keyboard movable section 1 slidingly perpendicularly to the keyboard movable section 1 rotation axis by means of the translation guideway 10, the keyboard movable section 1 being mounted at the device case 2 by means of a shoulder 44.
Var. 1 lOb : Drawn at the transportation state. Here the shaft 42 connected to the cover 3 through the transmission 43 for transfer of the cover 3 turning to the shaft 42 turning of the same orientation and double size (e. g. through a guide couple according to the detail B) and mounted pivotably about an axis that is parallel to the cover 3 rotation axis at the pillar 47 mounted at the device case 2 has the slide block 17 of the guide couple at its end, the guide 18 of which is fitted pivotably about an axis that is perpendicular to the keyboard movable section 1 rotation axis by means of the shim 45 to the keyboard movable section 1 that is put on the pillar 47 by means of the pin 21 that is hollow and has the cut-outs 48 for the shaft 42 passing through during the keyboard movable section 1 rotation and vertical displacement in the direction shown by the arrow towards the operation position. The shape of the guide 18 of this link is pipe with longitudinal cut-out with the central angle 90 deg and the slide block 17 is ball-shaped. The sealing of the device case 2 is the ring 46 with the inner hole of the same shape as vertical the pin 21 with the shim 45 and is not pivotable relatively to them. Relatively to the device case 2, the ring 46 is pivotable and vertically displacable-above its operation position only-and has the cut-out 48 that can be sealed by elastic foam material and is purposed for passing the slide block 17 of the guide couple, and the shoulder 44-the limitation of its raising above its position at the operation configuration. For the guide 18 passing through there is the cut 50 at the device case 2, too, sealed at the transportation state by means of the projection 26 at the ring 46.
1 lOc : Drawn at the transportation state. Here the shaft 42, connected to the cover 3 by means of spur gearing with outer teeth for the cover 3 rotation multiplication by the factor 2 and reversing of its direction, is connected with the hub 25 at which the pin 21 is mounted by means of the rotary-translating joint 11, the pin 21 being connected by means of the rotary joint 9 with vertical rotation axis to the projection 26 at the keyboard movable section 1 mounted at the device case 2 at the shoulder 44.
1 lOd : Drawn at the transportation state. Here the shaft 42 connected to the cover 3 by means of the toothed pliable component 36 based link, that is used for the cover 3 rotation multiplication by the factor 2, is connected to the guide 18, the slide block 17 of which is the end of the projection 26 at the keyboard movable section 1. The shape of the projection 26 is approximately bar of circular section with the axis perpendicular to the keyboard movable section 1 rotation axis, the keyboard movable section 1 being mounted at the device case 2 at the shoulder 44. The edges of the guide 18 are chamfered for the slide block 17 easier passing through.
11 Oe : Drawn at the transportation state. Here the shaft 42 is fixed to the cover 3 and at its end the guide 18 is at which the slide block 17 of the ball shape is, the slide block 17 being connected to the double rotary hinge 6 of the keyboard movable section 1 by means of the projection 26 that at the same time is the slide block of the guide 18 created at the device case 2 at which the keyboard movable section 1 is mounted at the shoulder 44. The drawn variant is for the keyboard movable section 1 that is located above the keyboard fixed section 5 at the transportation state.
For the keyboard movable section 1 that is located under the keyboard fixed section 5 at the transportation state, the ball-shaped slide block 17 trajectory is sketched with dashed line and the marks PI and P2 mark the start position and the end position of the projection 26.
1 l Of : Drawn at the transportation state-the keyboard movable section 1 is under the keyboard fixed section 5. Here the shaft 42 connected to the cover 3 by means of the toothed pliable component 36 based link (a spur gearing with inner teeth is also applicable), that is used for the cover 3 rotation multiplication by the factor 2, is connected to the guide 18, the slide block 17 of which is at the keyboard movable section 1 that is mounted at the device case 2 at the shoulder 44. Here the edges of the hole at the guide 18 for the slide block 17 are rounded.
1 lOg : the combination of the perimeter cam joint (for rotation) and front one (for lifting) with the cam follower 16 at the keyboard movable section 1 and the cam 15 at the cover 3.
At fig. 111 an example is of the support surface 51 application-it is the keyboard movable section 1 bottom surface and the device case 2 upper surface. Figs. 112 and 113 are the examples of the auxiliary part 4 application-at the first one for the keyboard movable section 1 vertically displacable by the wedge 53 and mounted at the auxiliary part 4 by means of the translation guideway 10 and at the second for the keyboard movable section 1 tiltable by the cam joint 12 and mounted at the auxiliary part 4 by means of the rotary joint 9. Fig. 114-two variants of mounting the keyboard movable section 1 pivotable about approximately vertical axis at the Cardan joint 22. Figs. 115 and 116 are the examples of the keyboard movable section 1 mounting at the slot 20 with the slot vertical segment 52, at which the slide block 17 is movable. At fig. 115 the keyboard movable section 1 is mounted pivotably about a vertical axis-above the slide block 17 is the projection 26 made at the keyboard movable section 1. At fig. l 16 the keyboard movable section 1 is straightly sliding along the cover 3 rotation axis. At the version 116a there is the cut-out 48 at the slide block 17 for the projection 26 made at the keyboard movable section 1. At the version 116b a couple of the pin 21 at the device case 2 and the projection 26 with the hole 55 at the keyboard movable section 1 is applied. At fig. l 17 the keyboard movable section 1 is mounted at the device case 2 through the slot 20 with the slot inclined segment 54, where at the slide block 17 is the hole 55 for the pin 21 at the slide block 17 of the guide 18 (the variant with the slot 20 with the inclined end for the keyboard movable section 1 pivotable about a vertical axis is not drawn-it is the same as the one at fig. 117, only coiled at a cylinder lateral area). Figs. 118 to 121 show the variant of the keyboard movable section 1 mounting with the keyboard movable section 1 vertical displacement control (figs. 118 and 120-the keyboard movable section 1 straightly sliding) or tilting control (fig. 121-the keyboard movable section 1 straightly sliding along the cover 3 rotation axis, fig. 119-the keyboard movable section 1 sliding perpendicularly to the cover 3 rotation axis) through the inclined surface 56 at the device case 2 and/or at the keyboard movable section 1. At figs. 122 to 124 the keyboard movable section 1 vertical displacement or tilt is controlled by the bar 24 and the inclined surface 56 or the helical surface 57, the keyboard movable section 1 horizontal motion and its vertical displacement or tilt have to be performed subsequently. At fig. 122 the keyboard movable section 1 is vertically displacable (version a-the keyboard movable section 1 straightly sliding along the cover 3 rotation axis, a couple of the projection 26 and the inclined surface 56 is applied, b and c - the keyboard movable section 1 pivotable about a vertical axis, at the version b a pair of the helical surfaces 57 is applied, at c the projection 26 and the helical surface 57), at fig. 123 (with pairs of the helical surfaces 57) and 124 (the inclined surface 56 and the projection 26 or the second inclined surface 56) it is tiltable (version a-straightly sliding along the cover 3 rotation axis, version b-pivotable about a vertical axis). At figs. 125 to 128 the keyboard movable section 1 is straightly sliding and mounted at at least one the lever 14, at least one of the levers having the projection 26, at the auxiliary part 4. Fig. 129 shows the connection of the cover 3 and the keyboard fixed section 5 through the scissors mechanism with one of the arms 7 being of a half length of the other, the arms 7 lying at a plane perpendicular to the cover rotation axis and figs. 130 to 134 the keyboard movable section 1 tilt control by means of the same mechanism.
Various versions of the keyboard movable section 1 tilt control by means of the scissors mechanism, but with the arms 7 of equal length and lying at a plane parallel to the cover 3 rotation axis are at figs. 135 to 140-at fig. 138 the version 138b is, where the keyboard movable section 1 vertical displacement is controlled by means of the scissors mechanism, the same at figs. 141 and 142 (at the former the arms 7 lie at a plane parallel to, at the latter at a plane perpendicular to the cover 3 rotation axis). At fig. 143 the scissors mechanism link is between the cover 3 and the keyboard fixed section 5 that is vertically displacable. Fig. 144 shows the elastic component 35 fitted between the cover 3 and the keyboard fixed section 5 (vertically displacable) and fig. 145 shows the elastic component 35 fitted between the cover 3 and the keyboard movable section 1 (it is a push spring that is led at the bar 24 from the reason of stability). The connection of the keyboard movable section 1 and the keyboard fixed section 5 through a divisible rotary joint 9 is at fig. 146. The link of the keyboard movable section 1 and the keyboard fixed section 5 through the lever 14 is at figs. 147 to 157, at figs. 151 and 152 the keyboard movable section 1 is vertically displacable and straightly sliding perpendicularly to the cover 3 rotation axis, at figs. 156 and 157 the keyboard movable section 1 is vertically displacable and straightly sliding along the cover 3 rotation axis and at the rest of the pictures the keyboard movable section 1 is straightly sliding along the cover 3 rotation axis and tiltable about an axis parallel to it. At figs. 147 to 152,156 and 157 the lever 14 is movable at a plane perpendicular to the cover 3 rotation axis, at the rest of the pictures the lever 14 is movable at a plane parallel to this axis. At figs. 147,149, 151,153 and 157 the lever is mounted at the auxiliary part 4 by means of the rotary joint 9, at figs. 148,152 and 155 at the device case by means of the rotary joint 9, at figs. 150 and 156 at the device case by means of the rotary- translating joint 11 and at fig. 155 at the device case by means of a ball joint 8. The links to the keyboard movable section 1 and to the keyboard fixed section 5 are the leading at an eye 19 (figs. 147,148, 153 and 154) and the rotary joint 9 (figs. 149,150, 152 and 154) or a rotary- translating joint 11-figs. 149, 150, 151,155 and 156, support surface-153 and 154, guide couple at fig. 157 and leading at a slot-147,148, 156 and 157. The link of the keyboard movable section 1 and the keyboard fixed section 5 through the rod 13 is at figs. 158 to 161. At the first two pictures the keyboard movable section 1 is straightly sliding along the cover 3 rotation axis, at the last two ones perpendicularly to this axis. At figs. 159 and 161 the rod 13 is permanently fitted to the keyboard fixed section 5 and through the divisible joint to the keyboard movable section 1, at the rest of them permanently to the keyboard movable section 1. The end of the rod 13 is sliding at a slot 20 (figs. 160 and 161), or is at an eye 19 at the operation position (figs. 158 and 159). Figs. 162 to 165 show the link of the keyboard fixed section 5 and the keyboard movable section 1 through a toothed pliable component 36-the first three for the keyboard movable section 1 sliding along the cover 3 rotation axis, the last for the keyboard movable section 1 pivotable about a vertical axis. At figs. 162,163 and 165 one driving/driven pulley 38/39 is permanently fitted to the keyboard movable section 1 and pivotably mounted at the auxiliary part 4 and the other is. mounted through the rotary joint 9 at the auxiliary part 4 and connectable to the keyboard fixed section 5 when the keyboard movable section 1 is at the operation horizontal position, either through the couple the shaft 42-the hub 25, both them of a rectangular cross section (fig. 162) or a pair of the pins 21 that are curved and mounted at the keyboard fixed section 5 pivotably about approximately vertical axis and slidingly (fig. 163) or by means of the translation guideway 10 only (fig. 165) and the respective holes 55 at which the pins 21 are extractable. At fig. 164 one driving/driven pulley 38/39 is permanently fitted to the keyboard fixed section 5 and the other pivotably mounted at the device case 2 and connectable to the keyboard movable section 1 by means of the pin 21 that is vertically extractable into the cut- out 48 at the keyboard movable section 1.
At figs. 166 to 171 the cover 3 and the device case 2 are connected through the elastic component 35. It is a spring-at fig. 166 spiral torsional one, at fig. 167 axial-at the whole view connected to the cover 3 and the device case 2 by means of the rotary joint 9, at the detail fixed to the device case 2 and supported by the projection 26 at the cover 3, at fig. 168 leaf spring-fixed to the device case 2 and led through the eye 19 at the cover 3, at fig. 169 axial hydraulic or gas one, at fig. 170 helical torsional-at the whole view led through the eye 19 at the cover 3 and through the eye 19 and coiled around the bar 24 at the device case 2, at the detail fixed to the device case 2 and led through the eye 19 at the cover 3 and at fig. 171 torsion bar.
At fig. 172 the elastic component 35-a torsion bar-is fixed to the cover 3 at one end and at the other it is fixed to the circular plate 49, it is also led at the device case 2 through the eye 19. At the circular plate 49 there are holes 55, in some of them being the projection 26 at the end of the lever 14 that is pivotably mounted at the device case 2. At fig. 173 a slide block 17 is at the end of the elastic component 35 that is a spiral torsional one, the slide block 17 being at the slot 20 of the cam 15 straightly sliding at the translation guideway 10 by means of the rod 13, that is fitted to the cam 15 through the rotary joint 9. At fig. 174 the elastic component 35 that is a leaf one is led at the cover 3 through the eye 19 and pivotably mounted at the device case 2. At the variant 174a its end is located at the slot 20 of the cam 15 that is a rotary one mounted at the shaft 42 that is mounted at the device case 2 by means of the rotary joints 9 and locked at the constant position with the arm 7 that is pivotably connected to it and has the projection 26 at the end, the projection 26 being hold in the hole 55 at the device case 2 by means of the elastic component 35. At the variant 174b the lever 14 is fixed to the elastic component 35, the lever 14 being connected to the rod 13 by means of the rotary joint 9. At fig. 175 the end of the elastic component 35 that is axial type is connected by means of the rotary joints 9 to the cover 3 and by the same way to the rod 13 pivotably mounted at the device case 2. The end of the elastic component 35 is supported at the cam 15 that is rotary and has the projection 26 that is in the eye 19 at the lever 14 that is led at the device case 2 in the translation guideway 10. At fig. 176 the end of the elastic component 35 that is a leaf one is led at the cover 3 through the eye 19 and supported at the cam 15 that is straightly sliding and has the eye 19 in which the lever 14 end is located, the lever 14 being pivotably mounted at the device case 2. At fig. 177 the elastic component 35 of axial helical type is connected to the cover 3 by means of the rotary joint 9 and is sliding on the cam follower 16, the cam 15 being of a rotary type. Here the cam follower 16 is led by means of the rod 13, that is through the rotary joints 9 connected to the cam follower 16 and the device case 2. At the cam 15 perimeter the cut 50 and the cut-out 48 are for the projection 26 at the elastic component 35 end, the spring being of a leaf type and fixed to the device case 2. At fig. 178 one end of the elastic component 35 that is helical torsional and sliding on the bar 24 is led through the eye 19 at the cover 3 and the other is connected to the cam follower 16 by means of the rotary joint 9, the cam 15 being mounted pivotably at the device case 2. The cam follower 16 is led through the eye 19 at the device case 2. At fig. 179 the end of the elastic component 35 that is of a leaf type, pivotably mounted at the device case 2 and led through an eye 19 at the cover 3 is connected through the rotary-translating joint 11 to the cam follower 16, the cam 15 being straightly sliding and mounted at the device case 2 in the same way as the cam follower 16, i. e. at the translation guideway 10 and connected to the rod 13 through the rotary joint 9. At fig. 180 the same way is applied for the elastic component 35 mounting, the elastic component 35 being of a leaf type and fixed to the arm 7 that is led through the hole 55 at the projection 26 that is at the cam follower 16, the cam 15 being of a rotary type.
Here the cam follower 16 is in contact with the cam 15 through the slider 40 and at the device case 2 it is led at an eye 19 and hung at the rod 13 that has the rotary joint 9 at both ends. At fig. 181 the end of the elastic component 35 that is a spiral torsional one is supported at the cam follower 16, the cam 15 being pivotably mounted at the device case 2 by means of the shaft 42 and the cam follower 16 is fitted at the device case 2 by means of a pair of the rods 13 with the rotary joints 9 at both ends. At fig. 182 one end of the elastic component 35 of a helical torsional type is led through the eye 19 at the cover 3, the elastic component 35 itself is coiled around the bar 24 at the device case 2 and connected to the cam follower 16 by means of the rotary- translating joint 11 at its second end, the cam 15 is straightly slidingly mounted at the device case 2 by means of the translation guideway 10 and fixed to the arm 7. Here the cam follower 16 is led at the device case 2 through two eyes 19. Fig. 183 shows the connection of the cover 3 and the cam follower 16 by means of the rotary joint 9 with the elastic component 35 of an axial type, the cam 15 is rotary one and the cam follower 16 is led at the translation guideway 10. At fig. 184 the elastic component 35 of an axial type is connected by means of the rotary joint 9 to the cover 3 and to the lever 14 and ended with the slider 40 that is supported at the cam follower 16 that is, same as the cam 15, of a sliding type and led at the translation guideway 10 and the cam follower 16 is fitted to the device case 2 by means of a pair of the rods 13 with the ball joints 8 at both ends, the lever 14 is mounted at the device case 2 by means of the rotary joint 9.
Fig. 185 shows the connection of the cover 3 to the elastic component 35-a torsion bar-the forked end of which is located at two holes 55 at the cam follower 16, the cam 15 being pivotably mounted at the device case 2 by means of the shaft 42. Here the cam follower 16 is mounted at the device case 2 pivotably and coaxial to the cover 3. At fig. 186 the cover 3 is connected by means of the elastic component 35 of a spiral torsional type with the worm wheel 32, that is geared with the worm 31 connected to the shaft 42. Fig. 187 shows the connection of the elastic component 35 of an axial type by means of the rotary joint 9 to the cover 3 and to the nut 28, that is coupled with the bolt 27 and unpivotably led at the device case 2 by means of the translation guideway 10. Fig. 188 is the application of the elastic component 35 that is of a helical torsional type and led at the cover 3 through the eye 19 and connected with the hub 25 at the slots 20 of which the radial projections 26 are located, the radial projections 26 being made at the end of the bar 24 led at the device case 2 by means of the translation guideway 10, the hub 25 is mounted at the device case 2 by means of the rotary joint 9. At fig. 189 the elastic component 35 of an axial type is connected through the rotary joint 9 to the cover 3 and to the lever 14 pivotably mounted at the device case 2, the opposite end of the lever 14 being connected by means of the rotary joint 9, again, to the elastic component 35 that is pull-type and pivotably mounted at the device case 2, the mechanism geometry being arranged so that at the limit positions the position of the lever 14 end connected to the elastic component 35 that is connected to the cover 3 is stated by the support surface 51 location and by pulling of the elastic component 35 mounted at the device case 2. At fig. 190 two versions of the system with two springs: both at 190a and at 190b variants the cover 3 is connected by means of the rotary joint 9 with two springs 35, one of them being fixed to the device case 2 and the other to the end block 58 mounted at the device case 2 by means of the translation guideway 10. At the end block 58, there are two cuts 50 for the projections 26, one of the projections 26 is at the lever 14 pivotably mounted at the device case 2 and the second at the bar 24 connected to the cover 3 by means of the rotary joint 9 that is coaxial with the rotary joint 9 between the cover 3 and the two springs 35. The bar 24 is supported by the elastic component 3 5 of a leaf type. At the variant 190a there is the cut 50 at the cover 3 at which the projection 26 at the end of the lever 14 is located at the operation configuration, the lever 14 being pushed onto the cover 3 by means of the elastic component 35 of a spiral torsional type. At the variant 190b there is the cut 50 at the cover 3 at which the projection 26 at the end of the elastic component 35 of a leaf type is located at the transportation configuration.
At fig. 191 there are two versions of the keyboard movable section 1 locking at the operation configuration by means of the pin 21-at the left there is the pin 21 extractable into the hole 55 at the keyboard movable section 1 and actuated by the cam 15 that is straightly sliding horizontally and perpendicularly to the cover 3. Here the pin 21 is sliding along the cover 3 rotation axis and pushed onto the cam 15 by the elastic component 35. At the right there is a variant with the pin 21 mounted at the shaft 42 pivotably about a vertical axis and controlled by the cam 15 fixed to the cover 3 at the slot 20 of which the projection 26 is located that is fitted at the shaft 42 not at its rotation axis and there is the cut 50 made at the keyboard movable section 1 for the pin 21. At fig. 192 there is the guide 18 made in the pin 21 at which the slide block 17 is located that is fixed at one end of the lever 14 pivotably mounted at the keyboard movable section 1 fitted at the double rotary hinge 6 at which the projection 26 is made that is located at the slot 20 at the other end of the lever 14. At the transportation configuration the pin 21 is hidden in the hole 55 at the keyboard movable section 1 and at the operation configuration the pin 21 is in the cut-out 48 at the device case 2. At fig. 193 the pin 21 is fixed to the cam follower 16 of the cam 15 fixed to the cover 3. Here the cam follower 16 is pivotably mounted at the device case 2 and the pin 21 is located in the cut 50 at the keyboard movable section 1 (drawn at the operation configuration).
Fig. 194 shows the keyboard movable section 1 that is straightly sliding along the cover 3 rotation axis and vertically displacable at the auxiliary part 4 led at the translation guideway 10.
Here the pin 21 is pivotable about an axis that is horizontal and perpendicular to the cover 3 rotation axis and at the drawn position, i. e. at the operation configuration it is located at the cut 50 at the keyboard movable section 1 and in contact with the projection 26 at the keyboard movable section 1. And the pin 21 is connected with the elastic component 35 (a pulling spring).
At fig. 195 the cover 3 is fitted at the double rotary hinge 6 and connected to the device case 2 by means of the cable 37. At fig. 196 there is a scheme of the cover 3 and the auxiliary part 4 connection by means of a pair of the pins 21 located in the holes 55 at the cover 3 and the auxiliary part 4 (drawn at the transportation configuration). The axes of the holes 55 are parallel to the cover 3 rotation axis. The position of the pin 21 front surfaces results from the shape of the cut 50 and the cut-out 48 at the device case 2 around this assembly. Here the auxiliary part 4 is connected to the keyboard movable section 1 and optionally to other movable parts and mounted at the device case 2 pivotably about the same axis as the cover 3.
At fig. 197 a similar version is like that at fig. 196 but the pin 21 is not split and its position at the direction parallel to its axis depends on the shape of the cuts 50 at the slot 20, at each of the cuts 50 is the projection 26 located at the end of the pin 21. A version with the pin 21 movable not parallelly to the cover 3 rotation axis but perpendicularly to it would be absolutely identical like that at figs. 196 and 197-in such case the section A-A would not be cylindrical but planar and perpendicular to the cover 3 rotation axis and the horizontal lines that are the edges of the cover 3, the auxiliary part 4 and the slot 20 or the cut 50 and the cut-out 48 would be replaced by circular arcs-or with the pin 21 movable along any other axis lying approximately at the plane containing the cover 3 rotation axis. Fig. 198 shows various versions of the connection of the auxiliary part 4 and the cover 3 by means of the pin 21 with the ends located at the slots 20 and movable perpendicularly to its axis. The main picture is drawn at the transportation configuration, the little views of the particular variants at the operation configuration. Var. 198a shows the version with the pin 21 the ends of which are at a pair of the slots 20, var. 198b shows the version with the pin 21 one end of which has the projection 26 and is located at one slot 20, e. g. T-shaped. At both the pictures a version with the pin 21 sliding is at the left and with the pin 21 tiltable is at the right. Also the pin 21 at var. 198c is tiltable-here one its end is led at the slot 20 of a simple shape and the pin 21 is mounted at the auxiliary part 4 by means of the rotary joint <BR> <BR> 9. At fig. 199 the projection 26 is at the end of the pin 21 pivotably mounted at the auxiliary part<BR> 4, the projection 26 being located in the hole 55 at the cover 3 at the transportation position and at the positions between the transportation position and the operation position. The tilt angle of the pin 21 is given by the shape of a pair of the slots 20, at each of them being located the slide block 17 connected with the pin 21. For the variants of the connection between the cover 3 and the auxiliary part 4 drawn at figs. 198 and 199 it is also possible that the axis of the pin 21 is not only parallel to the cover 3 rotation axis but can be also perpendicular to it or be of any direction and lie approximately at the plane containing the cover 3 rotation axis.
Feature list: l. keyboard movable section 2. device case 3. cover 4. auxiliary part 5. keyboard fixed section 6. double rotary hinge 7. arm 8. spherical joint 9. rotary joint l0. translation guideway 11. rotary-translating joint 12. cam joint 13. rod 14. lever 15. cam 16. cam follower 17. slide block 18. guide 19. eye 20. slot 21. pin 22. Cardan joint 23. strap 24. bar 25. hub 26. projection 27. bolt 28. nut 29. pinion 30. toothed wheel 31. worm 32. worm wheel 33. toothed rack 34. sheave 35. elastic component 36. toothed pliable component 37. cable 38. driving pulley 39. driven pulley 40. slider 41. torsionally stiff and pliable component 42. shaft 43. transmission 44. shoulder 45. shim 46. ring 47. pillar 48. cut-out 49. circular plate 50. cut 51. support surface 52. slot vertical segment 53. wedge 54. slot inclined segment 55. hole 56. inclined surface 57. helical surface 58. end block
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