Tooth cleaning and gum massaging the brush head achieves multi-way movement.

Brush head movement can be generated manually or machinely. The brush can be used for cleaning or massaging another parts of human body or other surfaces, too.

Existing technique stage For manual tooth cleaning and gum massaging in oral cavity tooth brush of different design, shapes and applied materials is used till now. Tooth brush movement is naturally limited just in certain axial reversing direction. This activity is executed even more badly in backsides of oral cavity, resp. both on external and internal tooth line.

In order to increase effectivenes of tooth cleaning and gum massaging with manual tooth brush and eventual prevention from damage of gum tissue passing to the tooth necks the stomatologists recommend to change movement direction of tooth cleaning, the coordination and variation in movement directions with tooth brush is, however, more difficult here.

Besides different electromechanic instruments are used to this goal, enabling to perform recommended multi-way movements and vibrations of tooth cleaning and gum massaging. These instruments are more capacious, costly incl. needed reserve cleaning and massaging heads, want of power source and necessity of securing the safety service. To these cleaning and massaging electric instruments belong for example tooth brushes with rotary heads etc.

Manual tooth brush with rotary, resp. rotary and simultaneously movable bristled sections in tooth head the content of US pat. document Nr. 5186627, Int. Cl. 5 A 61 C 17/32 is granted on 16.02. 1993. Tooth brush head contains one bristled section at least fixed on cylindrical holder being equipped on its lower part with teeth, which are in gear with movable toothed slat. Toothed slat enables straight reversing movement, whereby it comes to alternate turning one cylindric bristled holder at least to the right and to the left.

Design of manual tooth brush according to US pat. document Nr. 5186627 is complicated and difficult from viewpoint of production, especially by reason of small- size construction of separate constituent parts and accessories.

Object of solution according to the invention is therefore proposal of tooth brush design arrangement resulting from another principle, technically unpretensious, easily controllable by the service, enabling in addition to perform together with straight reversing movement another simultaneous movement of brush head namely swivelling reversing or lateral reversing movement.

Invention principle Brush consists of movable bristled head, which is connected in takable-apart way with handpiece, whereby principle of brush solution consists in that in head body is created oblique slot, the axis of which makes angle done in range from 1° to 80° with head body direct axis whereas area of handpiece one end is equipped with guiding projection placed in head body oblique slot. The mentioned brush design can be performed in such a way that it comes to kinematic reversion of oblique slot and guiding pin. Then in this case guiding projection is formed in head body and placed in <BR> <BR> oblique slot located in area of handpiece one end. Oblique slot axis makes again<BR> angle selected in range from 1° to 80 with handpiece direct axis.

In head body can be formed one or also more guiding projections, resp. one or more oblique slots. Also in area of handpiece one end is created one oblique slot or one guiding projection at least. Guiding projection or oblique slot is formed advantageously partly in head body and partly in area of handpiece one end covered with wall belonging to head body or wall belonging to handpiece.

Exemplary concrete brush execution is realized in such a way that oblique slot is formed in wall of concave prolongation of head body whereas guiding projection is formed on handpiece stem whereby takable-apart connection of head and handpiece is realized by means of concave prolongation of head body and stem on handpiece. This design arrangement enables simultaneous reversing advance axial and simultaneously reversing lateral swivelling movement of head body to the left and to the right.

In alternative concrete brush execution compared to previous variant, oblique slot is created in wall of handpiece concave stem whereas guiding projection is created on prolongation of head body whereby the takable-apart connection of head and handpiece is realized by means of handpiece concave stem and prolongation of head body whereby is enabled simultaneous reversing advance axial and reversing lateral swivelling movement of head body.

Another concrete brush execution according to the invention is realized in such a way that one oblique slot is created in handpiece stem whereas on internal surface of the head body concave prolongation wall one guiding projection at least is formed whereby the takable-apart connection of head and handpiece is realized by means of head body concave prolongation and stem on handpiece. This takable-apart connection of brush head and brush handpiece enables simultaneous reversing advance axial and reversing lateral swivelling movement of head body namely to the left and to the right from head body central position.

In alternative concrete brush execution compared to previous variant one oblique slot at least is created in prolongation of head body and one guiding projection at least is created on internal surface of handpiece concave stem wall whereby the takable- apart connection of head and handpiece is realized by means of handpiece concave stem and head body prolongation. Takable-apart connection of brush head and brush handpiece enables simultaneous reversing advance axial and lateral swivelling movement of head body.

In one tooth brush execution oblique slots show linear shape, in another execution oblique slots show shape of screw section, in other tooth brush variant oblique slots can form internal screw surface and guiding projections external screw line whereby external spiral line is placed in internal screw surface. Guiding projection in execution based on the invention can be created in shape resembling cylinder oriented vertically with its rotary axis or it can be created also in oblong shape where guiding projection length transcends multiply its thickness resp. its cross dimension.

According to another attribute of the invention beginning of one oblique slot at least is created in wall of concave prolongation of head body or made in wall of handpiece concave stem formed directly from external edge of head body concave prolongation resp. directly from external edge of handpiece concave stem. In alternative tooth brush execution beginning of one oblique slot at least is created again in wall of concave prolongation of head body or made on wall of handpiece concave stem realized in selected distance from external edge of concave prolongation of head body resp. in selected distance from external edge of handpiece concave stem. In these two mentioned cases of tooth brush design execution, which concerns beginning the oblique slot placing in concave prolongation of head body resp. in handpiece concave stem both external edge of head body concave prolongation resp. handpiece concave stem and area behind external edge of head body concave prolongation resp. handpiece concave stem are eqipped with stop termination. Stop termination prevents from extension of guiding projection from oblique slot in its one extreme position. In stop termination are created partly guiding and partly stripping apertures whereby guiding and stripping functions mutually overlap. Brush handpiece stem resp. prolongation of brush head body passes through guiding and stripping apertures.

According to another attribute of the invention place of head body and brush handpiece connection is overlapped either with flexible cup or telescopic cover whereby flexible cup is connected in takable-apart way with brush handpiece and telescopic cover is connected also in takable-apart way partly with head body and partly with brush handpiece. In case of overlaying the place of head body and brush handpiece connection with flexible cup resp. telescopic cover it is possible to exclude stop termination from tooth brush set.

Another concrete brush execution according to the invention is realized in such a way that oblique slot created in head body and guiding projection created in area of handpiece end are completed partly in head body and partly in area of handpiece end with dovetail guiding passing parallel with oblique slot. By means of dovetail guiding the takable-apart connection of head and brush handpiece is realized enabling simultaneous reversing advance axial and reversing lateral movement of head body.

In alternative concrete brush execution compared with precedent variant oblique slot is created in area of handpiece end and guiding projection formed in head body completed partly in area of handpiece end and partly in head body with dovetail guiding directing parallel with oblique slot. Takable-apart connection of head and handpiece is realized by means of this dovetail guiding, which enables simultaneous reversing advance axial and reversing lateral movement of head body.

Brush according to the invention can be designed also in such a way that head body is equipped with stem, on which is created screw surface and stem is placed in pushing way in guiding cover, which is handpiece constituent part. Pushing connection of head and handpiece enables advance axial and simultaneously lateral swivelling movement of head body. The mentioned brush design can be executed also in such a way that it comes to kinematic reversion of screw and guiding surface functions. Then in this case screw surface is created in guiding cover cavity, which is handpiece constituent part and in guiding cover cavity the head body stem is placed in pushing way whereby the pushing connection of head and handpiece enables simultaneous reversing axial and lateral swivelling movement of head body.

According to another attribute of the invention screw surface can be created both on stem and in guiding cover cavity. With design arrangement like this function of brush does not change and pushing connection of head and handpiece enables again simultaneous advance axial and lateral swivelling movement of head body.

According to alternative brush design compared to precedent arrangement the stem on body can be replaced with guiding cover and guiding cover can be replaced with stem whereby stem is placed again in pushing way in guiding cover. With design arrangement like this brush function does not change and pushing connection of brush head and handpiece enables advance axial and simultaneously lateral swivelling movement of head body. Rising screw surface is selected in the way preventing from self-locking connection of brush head and handpiece at axial reversing movement of brush handpiece.

In order to specify length of head body movement in gudiding cover the free stem end is equipped with stop termination. Head body achieves simultaneously with reversing axial movement in guiding cover alternating lateral swivelling movement namely to the left and to the right.

Advantage of tooth brush design arragement according to the invention is its design interpretation and at the same time reach effects at its use. Its qualities distinguish especially at the variants in execution when are quite covered its separate motional elements represented with oblique slots and guiding projections and next at overlaying connection of movable head with cleaning and massaging bristles and handpiece. For this purpose elastomer materials are used permitting certain mutual movement of brush head and handpiece but at the same time prevent from unwanted disconnetion of tooth brush both parts in situation of inadequate active load whereby they contribute to higher rigidity of product complete design.

Summary of pictures on drawings Invention is schematically and in exemplary executions specified on drawings, on which pict. 1 means top view to completed set of tooth brush in one exemplary execution, when its head is found in center neutral postition, pict. 2 then top view to tooth brush from pict. 1, when its head is found in one extreme position and its is deflected to the left, pict. 3 then second extreme position of tooth brush from pict. 1 deflected to the right, pict. 4 top view to tooth brush completed set in alternative exectution, when brush head is in neutral center position whereby guiding projection is modified for prolongation of head body and oblique slot is created in wall of brush handpiece concave stem, pict. 5 then composition of tooth brush set at side view in partial section, when dovetail guiding is used for mutual connection of brush head and handpiece, pict. 6 top view to completed set of tooth brush from pict. 5, when brush head is deflected to the left, pict. 7 top view to completed set of tooth brush from pict. 5, when brush head is deflected to the right, pict. 8 composition of tooth brush set in alternative execution at the side view and partial section, when dovetail guiding is used again for mutual connection of brush head and handpiece, pict. 9 top view to tooth brush completed set in another possible exemplary execution, when its head is found in center neutral position and with dash-and-dot. line are indicated both extreme positions of brush head at its deflection partly to the left and partly to the right, pict. 10 side view to tooth brush from pict. 9, when its head is equipped with one oblique slot, in which guiding projection is found, pict. 11 side view to tooth brush in partial section, in whose wall of head body concave prolongation are formed two oblique slots with guiding projection modified symetrically against each other, pict. 12 top view to completed set of tooth brush in alternative execution, when brush head is found in neutral center position, pict. 13 completion of tooth brush set at top view in partial section, when flexible cup is used to overlay connection of head body and handpiece, pict. 14 tooth brush with telescopic cover in partial section between head body and handpiece, pict. 15 top view to tooth brush completed set in partial section and in other alternative possible brush execution, when axis of oblique slot makes with longitudinal axis of tooth brush the angle bigger than 45°, pict. 16 top view to tooth brush completed set in different execution than shown on pict. 15, pict. 17 top view to completion of the tooth brush set with center neutral position of head, when guiding projection is formed on external surface of handpiece stem concave wall and oblique slot in prolongation of head body, pict. 18 top view and in partial section to tooth brush completed set in another possible exemplary execution, when its head is found in center neutral position with dashedly indicated position of head deflected partly to the left and partly to the right and pict. 19 side view to the brush from pict. 18.

Examples of the invention execution <BR> <BR> Tooth brush according to pict. 1 to 3 consists of head 1, which is advantageously<BR> connected in takable-apart way with handpiece 2. Connection of head 1 and<BR> handpiece 2 is performed by means of concave prolongation 8 of head 1 body and<BR> stem 3 formed at the end of handpiece 2. This connection enables straight movement of head 1 and handpiece 2 in direction of their longitudinal axis 7. For specification of <BR> <BR> movement in direction of longitudinal axis 7 it is formed in wall 20 of concave<BR> prolongation 8 of head 1 body the oblique slot 5 and on stem 3 of handpiece 2 is<BR> formed guiding projection 4 placed in oblique slot 5. Axis 6 of oblique slot 5 makes with of their longitudinal axis 7 angle a and oblique slot 5 shows line shape. Oblique slot 5 passes through wall 20 of concave prolongation 8 of head 1 body in such a<BR> way that is visible on external surface of concave prolongation 8 of head 1 body together with guiding projection 4.

Longitudinal dimension of oblique slot 5 determines extent of mutual movement of head 1 to handpiece 2 in direction of first arrow 10 (pict. 1). Pict. 1 shows standing<BR> head 1 to handpiece 2 in basic starting position.

On pict. 2 is illustrated position of head 1 deflection to the left namely in direction of second arrow 11. Deflection is consequence of handpiece 2 displacement with guiding projection 4 in oblique slot 5 in direction of third arrow 12 to upper extreme position. <BR> <BR> <P>Pict. 3 shows position of head 1 deflection to the right namely in direction of fourth<BR> arrow 13 whereby head 1 deflection is consequence of handpiece 2 displacement<BR> with guiding projection 4 in oblique slot 5 in direction of fifth arrow 14 to lower extreme position. <BR> <BR> <P>With movement of handpiece 2 in direction of third arrow 12 and fifth arrow 14 it<BR> comes to deflection of bristled head 1 to lateral directions, i. e. to the left and to the right namely in consequence of the head 1 bristle pressure to the cleaned resp. massaged surface. Alternate deflection of brush head 1 to lateral directions ensures guiding projection 4 conducted in oblique slot 5. This brush design arrangement is achieved from reversing advance movement guided in direction of longitudinal axis 7 of handpiece 2 of simultaneous derivation of head 1 body swivelling motion.

On pict. 4 is shown alternative execution of this above described brush design. <BR> <BR> <P>Oblique slot 5 is created this time in wall 200 of concave stem 3 of handpiece 2 and<BR> guiding projection 4 is realized on the prolongation 8 of head 1 body. With its<BR> functional position brush on pict. 4 corresponds with brush on pict. 1. Guiding projection 4 is placed in oblique slot 5 and takable-apart connection of head 1 and handpiece 2 is realized by means of concave stem 3 of handpiece 2 and prolongation 8 of head 1 body. Brush function according to pict. 4 is consistent with brush function according to pict. 2 and 3.

On pict. 5 is illustrated tooth brush design arrangement, which contains guiding projection 4 on head 1 body placed in oblique slot 5 created at one end of handpiece <BR> <BR> 2 on stem 3. Brush is completed again with head 1 and handpiece 2, which are<BR> connected each another in takable-apart way by means of dovetail guiding 9. Axis 6 of oblique slot 5 makes with longitudinal axis 7 of brush handpiece 2 angle a (pict. 6 <BR> <BR> and 7) whereas dovetail guiding 9 passes parallel with oblique slot 5 whereby it is<BR> enabled advance axial and simultaneously lateral movement of head 1 body on stem 3 of handpiece 2. Advance axial movement of handpiece 2 passes according to <BR> <BR> pict. 6 in direction of second arrow 11 and lateral movement of head 1 body in<BR> direction of third arrow 12. According to pict. 6 brush head 1 body is found in upper extreme position and is deflected sidelong to the left. Size of the head 1 body from longitudinal axis 7 of handpiece 2 is done with length of oblique slot 5 in stem 3.

Advance axial movement of handpiece 2 passes according to pict. 7 in direction of<BR> fourth arrow 13. According to pict. 7 head 1 body is found in lower extreme position<BR> and is deflected sidelong to the right.<BR> <P>With reversing axial movement of handpiece 2 according to first arrow 10 (pict. 5) it<BR> comes simultaneously to alternate lateral movement of head 1 body to the left and to the right from longitudinal axis 7 of handpiece 2. Angle a is selected in such a way <BR> <BR> that it prevents from self-locking connection of stem 3, handpiece 2 and head 1 body.<BR> <P>According to pict. 5 to 7 on handpiece 2 stem 3 is visible oblique slot 5 together with<BR> guiding projection 4. This tooth brush execution can be modified, however, in such<BR> way that oblique slot 5 incl. guiding projection 4 is ovelaid with the wall belonging to handpiece 2 stem 3.

On pict. 8 is presented alternative execution of brush design described in pict. 5 to 7. <BR> <BR> <P>Oblique slot 5 is created this time in head 1 body whereas guiding projection 4 is<BR> formed on lower part of handpiece 2 stem 3 whereby guiding projection 4 interferes<BR> with oblique slot 5. Connection of head 1 body and handpiece 2 stem 3 is secured<BR> with dovetail guiding 9, which passes parallel with oblique slot 5 whereby is enabled<BR> simultaneous advance axial and lateral movement of head 1 body on handpiece 2<BR> stem 3. Brush function according to pict. 8 is consistent with brush execution<BR> according to pict. 5 to 7. In this tooth brush execution is covered oblique slot 5 incl. guiding projection 4 with wall resp. mass of head 1 body.

Tooth brush according to pict. 9 and 10 consits of head 1 being advantageously connected in takable-apart way with handpiece 2. Connection of head 1 and <BR> <BR> handpiece 2 is performed by means of concave prolongation 8 of head 1 and stem 3<BR> created on handpiece 2 end. This connection enables straight movement of head 1 and handpiece 2 in direction of their longitudinal axis 7. For specification of movement in direction of longitudinal axis 7 in wall 20 of concave prolongation 8 of <BR> <BR> head 1 oblique slot 5 is created and on handpiece 2 stem 3 guiding projection 4 is<BR> formed, placed in oblique slot 5 showing shape of spiral section. Oblique slot 5 is<BR> created on area behind external edge 15 of concave prolongation 8 of head 1 namely<BR> in direction to tooth brush head 1. Axis 6 of oblique slot 5 makes with longitudinal axis<BR> 7 of tooth brush angle a, which is selected advantageously in extent from 15 to 30°.<BR> <P>Maximum size of angle a is limited with self-locking the tooth brush set of both parts.<BR> <P>Pict. 1 shows position of head 1 to handpiece 2 in basic starting position whereby in<BR> pict. 1 are indicated with dash-and-dot lines both extreme positions of the tooth brush bristled head 1 namely left extreme position and right extreme position. Also guiding projection 4 placed in oblique slot 5 is found in basic starting position namely in the middle of oblique slot 5.

Starting motional impulse at tooth cleaning passes in direction of tooth brush <BR> <BR> longitudinal axis 7 namely in direction of first arrow 10. This reversing axial<BR> movement of tooth brush handpiece 2 takes reversing swivelling movement of head 1<BR> body up in direction of second arrow 11. Size of angle a of oblique slot 5 in wall 20 of<BR> concave prolongation 8 of head 1 determines scale of head 1 turning to the right and<BR> to the left above all according to second arrow 11. At tooth cleaning and massaging tooth brush head 1 achieves besides reversing axial movement simultaneously reversing lateral swivelling movement namely to the left and to the right. This swivelling movement of head 1 is generated with movement of handpiece 2 alternately in direction of first arrow 10 namely in consequence of the head 1 bristle<BR> pressure to the cleaned resp. massaged surface. Alternate deflection of brush head 1 to lateral directions is ensured with guiding projection 4 conducted in oblique slot 5.

With this brush design arrangement is obtained from reversing advance movement guided in direction of longitudinal axis 7 of handpiece 2 actual derivation of swivelling movement of head 1 body.

Tooth brush according to pict. 9 a 10 contains one head 1 oblique slot 5 created in wall 20 of concave prolongation of head 1 whereby beginning of oblique slot 5 in<BR> concave prolongation 8 is situated from beginning of internal aperture in concave<BR> prolongation 8 is and oblique slot 5 is quite covered with wall 20 of this concave<BR> prolongation 8 that is to say it does not interfere external surface of concave<BR> prolongation 8 of head 1.

Against deflection of guiding projection 4 from oblique slot 5 of concave prolongation 8 end of concave prolongation 8 is equipped with stop termination 17 having guiding and stripping aperture 18, through which passes stem 3 of handpiece 2. Function of guiding and stripping aperture 18 results already from its name, it means that ensures partly handpiece 2 stem 3 guiding and partly cleanness of handpiece 2 stem 3 and prevents from the leftovers penetration to space of oblique slot 5 and guiding projection 4. Guiding and stripping aperture 18 can be of cylindrical event. conical<BR> shape. Stop termination 17 is connected with concave prolongation 8 of head 1 by<BR> means of screw or event. pressurizing over protrusions and hollows created on stop termination 17 and in concave prolongation 8 resp. on concave prolongation 8 and stop termination 17.

Execution of tooth brush according to pict. 11 differs from execution of tooth brush <BR> <BR> according to pict. 10 only in that in wall 20 of concave prolongation 8 are created<BR> oblique slots 5 arranged against each other in angle of 180°. In each of oblique slots<BR> 5 is placed guiding projection 4. In this execution forces acting to guiding projection 4<BR> and oblique slot 5 using tooth brush are distributed in the bigger functional surface. In alternative not illustrated tooth brush execution it is possible to use also more oblique <BR> <BR> slots 5 than two whereby their distribution at periphery of concave prolongation 8 of<BR> head 1 is optional according to design requirements and the needs of the product use value. Shape of oblique slots 5 with guiding projections 4 can be spiral or linear. <BR> <BR> <P>It is possible also execute oblique slots 5 in such a way that they create at internal<BR> periphery of concave prolongation 8 of head 1 internal screw surface and guiding<BR> projections 4 at external surface of handpiece 2 stem 3 create external screw surface<BR> whereby external screw surface is placed in internal screw surface.<BR> <P>Tooth brush in execution according to pict. 12 contains oblique slot 5 in wall 20 of<BR> concave prolongation 8 of head 1 body and at external surface of handpiece 2 stem<BR> 3. Oblique slot 5 is executed in selected distance from external periphery 15 of<BR> concave prolongation 8 of head 1 body. At this tooth brush design arrangement is not<BR> needed the stop termination 17 using because guiding projection 4 has not possibility<BR> at current tooth brush use to deflect from oblique slot 5. Design of tooth brush can be<BR> executed also in such way that oblique slot 5 is created in handpiece 2 stem 3 and<BR> guiding projection 4 at internal surface of wall 20 of concave prolongation 8 of head 1<BR> body. Alternatively it is possible to create more oblique slots 5 in handpiece 2 stem 3<BR> and more guiding projections 4 at internal wall 20 of concave prolongation 8 of head 1 body. Oblique slot 5 can have linear or partially spiral shape resp. it can create<BR> screw surface. Accordingly this applies also to possible shapes of guiding projection<BR> 4. Tooth brush function according to pict. 12 is identical to function mentioned for<BR> tooth brush according to pict. 9 and 10. Wall 20 of concave prolongation 8 of head 1 body covers oblique slot 5 incl. guiding projection 4.

According to pict. 13 oblique slot 5 is created again in wall 20 of concave prolongation<BR> 8 of brush head 1 and is terminated only at external edge 15 of concave prolongation<BR> 8. Guiding projection 4 placed in oblique slot 5 is created on handpiece 2 stem 3.<BR> <P>Connection of brush head 1 and handpiece 2 is overlaid with flexible cup 19 imbedded partly at external surface of concave prolongation 8 and partly at external surface of handpiece 2. Flexible cup 19 from elastomer material enables the needed<BR> movement of head 1 body, however, it prevents from deflection of guiding projection<BR> 4 from oblique slot 5 especially when guiding projection 4 would show bigger<BR> longitudial dimension that is to say that would be bigger. In this case of tooth brush execution it is possible to exclude stop termination 17 how shown besides in pict. 13.

Oblique slot 5 incl. guiding projection 4 is overlaid again with wall 20 of concave<BR> prolongation 8 of head 1 body.

In execution of tooth brush according to pict. 14 telescopic cover 21 is used to overlay connection of head 1 body and handpiece 2, whose one end is connected with concave prolongation 8 of head 1 body and the other end is connected with<BR> handpiece 2. According to pict. 14 oblique slot 5 terminates again at external edge 15 of concave prolongation 8 of head 1 body. Also in this case it is possible to exclude stop termination 17 because limited elasticity of telescopic cover 21 prevents from<BR> extension of guiding projection 4 from oblique slot 5. The other tooth brush execution<BR> according to pict. 14 is identical to execution of tooth brush according to pict. 13.

On pict. 15 is shown alternative of tooth brush execution. when oblique slot 5 is created in wall 20 of concave prolongation 8 of head 1 body and angle a maked with axis 6 of oblique slot 5 with longitudinal axis 7 of tooth brush is bigger than 45°. As a rule angle a uses to be selected in extent from 60° to 80°. Oblique slot 5 is<BR> terminated in area behind external edge 15 of concave prolongation 8 of head 1 body<BR> and guiding projection 4 is placed in it, created on tooth brush handpiece 2 stem 3.

Against pulling-out the guiding projection 4 from oblique slot 5 it is used stop termination 17 fastened in wall 20 of concave prolongation 8 of head 1 body. Oblique<BR> slot 5 in wall 20 of concave prolongation 8 of head 1 body does not ascend tooth<BR> brush external surface.

Primary movement in case of tooth brush execution according to pict. 15 is reversing movement of tooth brush handpiece 2 in direction vertical to its longitudinal axis 7 namely lateral reversing movement in direction of third arrow 12. With this it comes partly to alternate swivelling reversing movement of bristled head 1 body in direction<BR> of second arrow 11 and partly to alternate reversing movement of the head 1 body in<BR> direction of tooth brush longitudinal axis 7 namely in direction of fourth arrow 13.<BR> <P>Angle a is selected in such a way that it prevents from self-locking connection of<BR> handpiece 2 stem 3 and head 1 body. Size of head 1 body deflection from<BR> longitudinal axis 7 of handpiece 2 is done with length of oblique slot 5 in wall 20 of concave prolongation 8 of head 1 body.

On pict. 16 tooth brush execution is similar to that one on pict. 15 differing in the fact <BR> that guiding projection 4 placed in oblique slot 5 shows bigger length and copies<BR> shape of oblique slot 5, which is terminated additionally on external edge 15 of<BR> concave prolongation 8 of head 1 body. In wall 20 of concave prolongation 8 can be<BR> created also more oblique slots 5, which can be executed in form of internal screw surface. Then guiding projections 4 can create external screw surface, which is placed in internal screw surface in concave prolongation 8 of head 1 body.

In order to prevent from pulling-out the guiding projection 4 from oblique slot 5 end of<BR> concave prolongation 8 of head 1 body is equipped with stop termination 17 (pict. 16),<BR> which is fastened in hollows resp. hollows created on external surface of concave<BR> prolongation 8 of head 1 body. Stop termination 17 is pressurized with its peripheral<BR> protrusion to peripheral hollow on external surface of concave prolongation 8. The<BR> brush handpiece 2 stem 3 passes through guiding and stripping aperture 18 created<BR> in rotary axis of stop termination 17. Tooth brush function according to pict. 16 is identical to the tooth brush function in execution according to pict. 15. Placement of <BR> <BR> guiding projection 4 in oblique slot 5 according to pict. 16 corresponds with standing<BR> the bristled head 1 body in center neutral position.

On pict. 17 is shown alternative execution of the above described tooth brush design. <BR> <BR> <P>Oblique slot 5 is this time in wall 200 of concave handpiece 2 stem 3 and guiding<BR> projection 4 is realized on prolongation 8 of head 1 body. Guiding projection 4 is<BR> placed in oblique slot 5 and takable-apart connection of tooth brush head 1 and<BR> handpiece 2 is realized by means of concave handpiece 2 stem 3 and prolongation 8<BR> of head 1 body. According to pict. 17 brush head 1 body is found in center neutral<BR> position and oblique slot 5 has linear shape and is created in area behind external<BR> edge 15 of concave handpiece 2 stem 3 namely in direction to handpiece 2. For this<BR> reason there is no need to use stop termination 17 at external edge 15 of concave<BR> handpiece 2 stem 3. Tooth brush function according to pict. 17 is identical to function of tooth brush according to pict. 9 and 10. Axial reversing movement of handpiece 2 <BR> <BR> in direction of first arrow 10 achieves simultaneous advance axial reversing<BR> movement of head 1 body and reversing swivelling lateral movement of head 1 body.<BR> <P>Also in this tooth brush execution wall 200 of concave handpiece 2 stem 3 covers oblique slot 5 and guiding projection 4.

In tooth brush execution according to pict. 17 can be created more oblique slots 5 in <BR> <BR> wall 200 of concave handpiece 2 stem 3, whose course can be linear or in shape of<BR> spiral section event. in shape of screw surface. In the same way can be created also guiding projection 4.

In alternative not illustrated tooth brush execution can be created one oblique slot 5 at least in prolongation 8 of head 1 body and one guiding projection 4 at least on <BR> <BR> internal surface of concave handpiece 2 stem 3. Shape course of oblique slots 5 and<BR> guiding projections 4 can be also linear, of partially spiral shape or in shape of screw surface. In this alternative not illustrated tooth brush execution and also in execution of tooth brush according to pict. 17 can be used flexible cup 19 or telescopic cover 21 to overlay connection of prolongation 8 of head 1 body and concave handpiece 2 <BR> <BR> stem 3. Applying flexible cup 19 or telescopic cover 21 it is possible to exclude using<BR> stop termination 17 namely when oblique slots 5 will be terminated only on external edge 15 of concave handpiece 2 stem 3 as quite similarly in execution of tooth brush<BR> according to pict. 13 or 14.

Tooth brush according to pict. 18 and 19 consists of head 1, which is advantageously connected in takable-apart way with handpiece 2 Takable-apart connection of head<BR> 1 and handpiece 2 is realized by means of stem 3, imbedded in pushing way in<BR> guiding bush 16 cavity whereby stem 3 is constituent part of head 1 body and guiding bush 16 is constituent part of handpiece 2.

On stem 3 is created screw surface whereby it is reached at reversing axial<BR> movement of head 1 body in direction of first arrow 10 simultaneous reversing lateral<BR> swivelling movement of head 1 body to the left and to the right namely in direction<BR> according to second arrow 11. Axial movement of head 1 body is limited with stop<BR> termination 17 on stem 3. With full line is represented in pict. 18 basic starting resp.<BR> neutral position of head 1 body and with dashed line are indicated deflected positions of head 1 body to the right and to the left.

With movement of brush handpiece 2 it comes alternately to simultaneous deflection of bristled head 1 body in direction of first arrow 10 to lateral directions, i. e. to the left<BR> and to the right namely in consequence of head 1 bristles pressurizing to the cleaned resp. massaged surface.

In alternative not illustrated tooth brush execution guiding bush 16 can be constituent <BR> <BR> part of head 1 body and stem 3 constituent part of handpiece 2 whereby stem 3 is<BR> conducted again in guiding bush 16 cavity, in which stem 3 is imbedded in pushing way.

Finally in another not illustrated tooth brush execution screw surface can be created both on stem 3 and guiding bush 16 cavity.

Brush function in mentioned not illustrated variants keeps being as stated at description of pict. 18 and 19.

Described and illustrated in drawings, brush solutions can be used effectively in mass production namely with technology of injection molding. Easier connection of product parts enables elasticity of plastics incl. creation of overlap and interlock connections.

Advantageously can be used here also various material dischargings of product parts namely in order to utilize their flexible deformations at connection itself of separate product parts.

In case of using technical solution for another purposes it is advisable that technology of product making-up and used materials adapt to kind of use and respective loading.