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Title:
METHOD AND DEVICE FOR A HEIGHT ADJUSTABLE CABINET INTERIOR
Document Type and Number:
WIPO Patent Application WO/2014/148977
Kind Code:
A1
Abstract:
A method and a device (1) for supporting and moving a height-adjustable cabinet interior (2) between a first position (a) inside a cabinet body (3) to another position, in which a better access to the cabinet interior (2) is at hand compared to the first position. The device (1) comprises a wall bracket (4) for attaching the device (1) to the cabinet body (3), an interior bracket (5) for attaching the device (1) to cabinet interior (2), at least one first guide vane (6) attached between the wall bracket (4) and the interior bracket (5), a motor (7) arranged at the wall bracket (4) and arranged to rotate a drive shaft (8), a drive belt (9) attached between the drive shaft (8) and the cabinet interior (2). The method and device (1) is characterized by that the cabinet interior (2) moves during a, substantially horizontal, first movement (11), between the first position (a) inside the cabinet body (3) and a second position (b) outside the front edge (12) of the cabinet body (3), while at least one first guide wheel (10), prevents a vertical motion of the cabinet interior (2) during the first movement (11).

Inventors:
AUGUSTSSON STEFAN (SE)
Application Number:
PCT/SE2014/050288
Publication Date:
September 25, 2014
Filing Date:
March 10, 2014
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HANDIQUIP AB (SE)
International Classes:
A47B51/00
Foreign References:
US7770986B12010-08-10
US8424983B12013-04-23
US20110266936A12011-11-03
Attorney, Agent or Firm:
GOTAPATENT AB (Jönköping, SE)
Download PDF:
Claims:
C L A I M S

1. Method for, through a therefore dedicated device (1 ), moving a height-adjustable cabinet interior (2) between a first position (a) inside a cabinet body (3) to another position, in which a better access to the cabinet interior (2) is at hand compared to the first position, and the cabinet interior (2) is moved between the first position (a) inside the cabinet body (3) and a second position (b) outside a front edge (12) of the cabinet body (3), through a first movement (1 1) which substantially has a horizontal direction, characterized by that the first movement (1 1) is guided by at least one first guide rail (13), fixedly arranged, substantially horizontal in relation to the cabinet body (3), and against which first guide rail (13) at least one first guide wheel (10) runs, and which first guide wheel (10) is arranged at a first end (19) of a rotary mounted guide arm (17), which is arranged on the cabinet interior (2), and the coordination between the first guide wheel (10) and the first guide rail (13) prevents a vertical movement of the cabinet interior (2) during its first movement (1 1 ) inside the cabinet body (3).

2. Method according to claim 1 , characterized by that the first movement (11), moving from the first position (a) inside the cabinet body (3) to the second position (b) outside the front edge (12) of the cabinet body (3), is performed through a stored power in a power accumulating device (14), preferably a gas strut, and which power at least partly is horizontal and directed from the first position to the second position.

3. Method according to claim 2, characterized by that when moving the cabinet interior (2) in direction towards the first position (a) inside the cabinet, a power is accumulated in the power accumulating device (14), which power at least partly has a horizontal direction.

4. Method according to any of the preceding claims, characterized by that from the second position (b) a second movement (21) is permitted, which second movement (21 ) has a direction different from the first movement (1 1).

5. Method according to any of the claims 1 -3, characterized by that from the second position (b) a second movement (21) is permitted, which second movement (21 ) has the same direction as the first movement (1 1 ). 6. Method according to claim 4, characterized by that the second movement (21) runs substantially in a vertical direction, between the second position (b) and a third position (c), an end position of the cabinet interior (2) movement.

7. Method according to claim 6, characterized by that the second movement (21 ) is guided by a at least one second guide rail (20), fixedly arranged, at least close to vertical, at the cabinet interior (2), and against which second guide rail (20) at least one second guide wheel (18) runs during the second movement (21 ), and which second guide wheel (18) is arranged at a second end (26) of the rotary mounted guide arm (17).

8. Method according to claim 7, characterized by that, when the cabinet interior (2) is in the second position (b) and also during the second movement (21), the first guide wheel (10) rests against a first tongue (23), which is arranged at an outer end (22) of the first guide rail (13), and the second guide wheel (18) cooperates with the first guide wheel (10), via the fixing point (27) of the rotary mounted guide arm (17), whereby a horizontal motion of the cabinet interior (2) is prevented during its second movement (21 ) outside the cabinet body (3). 9. A device (1) for supporting and moving a height-adjustable cabinet interior (2) between a first position (a) inside a cabinet body (3) to another position, in which a better access to the cabinet interior (2) is at hand compared to the first position, and which device (1 ) comprises a wall bracket (4) for attaching the device (1 ) to the cabinet body (3), an interior bracket (5) for attaching the device (1 ) to cabinet interior (2), at least one first guide vane (6) attached between the wall bracket (4) and the interior bracket (5), a motor (7) arranged at the wall bracket (4) and arranged to rotate a drive shaft (8), a drive belt (9) attached between the drive shaft (8) and the cabinet interior (2), characterized by that the device (1 ) comprises a at least one first guide wheel (10), which is arranged to stop a vertical motion of the cabinet interior (2) during a, substantially horizontal, first movement (11), which first movement (1 1) moves the cabinet interior (2) between the first position (a) inside the cabinet body (3) and a second position (b) outside the front edge (12) of the cabinet body (3).

10. Device (1) according to claim 9, characterized by that the device (1 ) comprises a first guide rail (13), which is fixedly arranged in relation to the cabinet body (3), and the first guide rail (13) is arranged to guide the first guide wheel (10) during the first movement (1 1), whereby a vertical movement of the cabinet interior (2) is prevented.

1 1. Device ( ) according to any of the claims 9-10, characterized by that the device (1 ) comprises a power accumulating device (14), preferably a gas strut, which is attached between the wall bracket (4) and the interior bracket (5), and which power accumulating device (14) is arranged to accumulate a power component (15) which at least partly is parallel to the direction of the first movement (1 1 ).

12. Device (1 ) according to any of the claims 9-1 1 , characterized by that at least one, substantially vertical, second guide vane (16) is attached between the interior bracket (5) and the cabinet interior (2).

13. Device (1 ) according to any of the claims 9-12, characterized by that a rotary mounted, and preferably L-shaped, guide arm (17) is arranged at the interior bracket (5), and that the first guide wheel (10) is mounted at a first end (19) of the guide arm (17), and a second guide wheel (18) is mounted at a second end (26) of the guide arm (17).

14. Device (1 ) according to claim 13, characterized by that a second guide rail (20) is fixedly arranged at the cabinet interior (2), and the second guide rail (20) is arranged to guide the second guide wheel (18) during a, substantially vertical, second movement (21 ), which second movement (21 ) is arranged to move the cabinet interior (2) between the second position (b) outside the cabinet body (3) and a third position (c), an end position of the cabinet interior (2).

15. Device (1 ) according to claim 14, characterized by that the first guide rail (13) at its outer end (22), closest to the front edge (12) of the cabinet body (3), comprises a first tongue (23), which is arranged to guide the first guide wheel (10) into the first guide rail (13) at the transition between the, substantially vertical, second movement (21 ) and the, substantially horizontal, first movement (1 1 ) of the cabinet interior (2), and at the opposite sequence, at the transition between first movement (1 1) and the second movement (21 ), the first tongue (23) also indirectly positions the second guide wheel (18) against the second guide rail (20), via the guide arm (17) and the positioning of the first guide wheel (10) and further the tongue (23) is arranged to stop the horizontal and inward motion of the first guide wheel (10) in the second position (b) of the cabinet interior (2), and also during the, substantially vertical, second movement (21 ) of the cabinet interior (2), and thereby also the horizontal position of the second guide wheel (18) is fixed, by the rotary mounted guide arm (17). 16. Device (1 ) according to any of the claims 14-15, characterized by that the second guide rail (20) at its lower end (24), comprises a second tongue (25), which is arranged to guide the second guide wheel (18) to the second guide rail (20) at the transition between the, substantially horizontal, first movement (11), and the, substantially vertical, second movement (21), of the cabinet interior (2), and at the opposite sequence, at the transition between the second movement (21 ) and the first movement (1 1), the second tongue (25) also indirectly positions the first guide wheel (10) against the first guide rail (13), via the guide arm (17) and the positioning of the second guide wheel (18).

Description:
Method and device for a height adjustable cabinet interior

Technical field

Present invention discloses a method and a device for moving a height adjustable cabinet interior between a first position in a cabinet and a second position with better access than the first position. The method and device are preferably used for applications where

handicapped persons, for example wheel chaired bound persons, need an adaption of for example kitchen wall-mounted cabinets and the like, for better accessibility. The invention is not limited to this kind of application while as well purely ergonomic aspects are at hand.

Background of the invention

At handicap adaption or ergonomic adaption in existing housings, workplaces, schools etcetera, but also in new buildings, high costs occur for adaption of kitchen cabinets, bathroom cabinets, work stations etc. What a landlord, or responsible within a municipality must also include in a cost estimate is to restore to the original condition of the premises or dwelling when switching users. Of course, there also are other measures, such as adaption of stairs, elevators, doors, etc., but this invention specifically concerns the adaptation of the cabinet or cabinet interior, preferably at kitchens and bathrooms. For convenience, the invention will be exemplified with a kitchen application, but it will be obviously understood that the invention is not limited to this application.

Today there are a number of different solutions to increase the accessibility of the content of high-mounted cabinets, for example, wall-cabinets in kitchens. Essentially, there are currently three types of designs which are all about achieving a height adjustable adaption of wall-cabinets, and these can be described as follows.

Vertical lift

In this adaption of the high-mounted cabinet a specially designed height adjustable cabinet interior is made accessible, by that the complete interior is lowered, from a first position into the cabinet, straight down towards the kitchen counter by a vertical movement. Thereby the contents of the cabinet are exposed, whereby the bottom shelf, in access mode, stopping just above the countertop. Commonly, the vertical movement is performed by means of a motor, drive shaft and drive belts. Disadvantages of this type of solution is that accessibility is still somewhat limited in that the user still needs to reach in over the kitchen counter, while the cabinet interior is adjacent to the wall, right under the wall cabinet. Further, this solution means that the area under the cabinet always must be kept free from kitchen equipment like coffee machines, toasters and the like and not at least the water mixer, so this solution doesn't fit everywhere in the kitchen. Another disadvantage is that the cabinet, in which the height-adjustable interior is placed, must be specially adapted or replaced, because at least the bottom shelf must be removed. Other problems occur from the adaption of the lighting which normally is mounted under the cabinets, for illumination of the working surfaces of the countertop. There are lighting solutions for mounting under the customized cabinet, which then often is coordinated with a pinch protection which must be present under all height- adjustable cabinets, but at rebuilding of cabinets, normally also the rest of the lighting under the standard cabinets must be changed, to get a uniform illumination in the kitchen. All these measures drive costs for the handicap adaption, and additionally, as mentioned above, the restoration of the interior must be taken into account, for example at change of users. Height- adjustable devices must manage a load of at least 40 kg, according to standards within the field, and another disadvantage with this type of solution, where the bottom shelf of the cabinet is missing, is that the weight of a possible overload of the cabinet means that there is a risk of sagging of cabinet interior, which must be taken into account when dimensioning the motor and drive package. Additionally, if the wall-cabinet is positioned at an end or free standing, in other words there are no surrounding cabinets, normally the wall-cabinet needs to get reinforced as the normally stabilizing bottom of the cabinet is missing. Wall-cabinet lift

A completely different kind of construction is the wall-cabinet lift. According to this

construction the complete wall-cabinet is lowered from its position at the wall, in a curved or diagonal motion from the wall position, down to a position just above the countertop surface and at the forefront of the same, whereby the whole kitchen cabinet including cabinet doors, moves down and out towards the user. Hereby a wall-cabinet with good access at the forefront of the countertop is achieved, where the user has a far better access to the goods inside the cabinet than in standard cabinets. An advantage with this solution compared to the vertical lift is also that existing standard cabinets can be used, even if they of course have to be disassembled initially at the adaption. Hereby no space is lost inside the cabinet as in solutions where a special adapted interior is placed inside the cabinet. However, this solution requires a certain clearance around the cabinets to make sure that they will not chafe against other surrounding cabinetry, making it not always possible to use the existing cabinets - they have to fit in between other cabinets and fit in with the rest of the kitchen's sectioning. This solution means that strong structures with wall mounts and lift arms are mounted behind the cabinets, which cabinets then are screwed into the lifting device support members. While the complete cabinet body including doors, according to this method, is lifted down and up, it's easy to understand that the structures need to be much stronger compared to the vertical lift, and not only manage 40 kilos of content, but also the significant dead weight of the wall- cabinets, which increase both installation costs and electrical consumption during operation. A further drawback with this design is that the cabinet doors come down with the cabinet and interferes with the user when the content must be put on the countertop surfaces besides the lowered cabinet. Often an extra pull-out board is then positioned in front of the height- adjustable cabinet to take care of this problem, but the solution is though not completely good because the cabinet doors must be closed before the cabinet is raised again, whereby the newly unloaded content, so to speak are in the way for the doors which shall be closed. Diagonal lift

A third type is the so called diagonal lift which combines the idea with a special height- adjustable cabinet interior, separated from the ordinary cabinet body, and that the interior/content reaches the front of the countertop. Thereby there is no need to take care of the whole dead weight of the cabinet body, but achieves a better access by that the interior is brought out by a diagonal or curved movement from the first position in the cabinet to a user position just above the countertop and at the front of the same. Another advantage is that the cabinet doors can be arranged to automatically open when the interior passes out during the outgoing and lowering movement and vice versa, closes the doors in the end of the arrival of the interior into the cabinet. The cabinet doors are thus left in an elevated position together with the cabinet body. Unfortunately this solution also have the above described

disadvantages regarding tampering on existing cabinets due to the immediate diagonal or curved movement of the interior which makes it necessary to remove the bottom shelf. In other words, the total costs increases considerably while either the cabinets must be replaced with custom-made frames or that the existing bottom shelf need to be removed, to hold the interior during the movement. Further, this way of moving the cabinet interior means that the interior itself must be considerably lower than the cabinet, to make the movement possible and make room for the parts needed for the diagonal or curved movement, like pivoting arms and the like. Also lighting and possible decorative strips under the wall- cabinets are affected because the bottom of the cabinet is removed, which also affects the installation cost and restoration cost considerably, as described above. The same applies to the dimensioning of the drives and support structures which must withstand certain overload not to sag from its resting in the cabinet body.

There is therefore a need to improve the market known solutions regarding height-adjustable cabinets and cabinet interiors, primarily from a total cost perspective, taking into account both the installation costs and restoration costs. If these costs are substantially reduced, the possibility increases for a user to make an adaption of their residence or workplace, whereby an increased freedom and equality is achieved for the user when choosing residence or workplace.

Disclosure of the invention

With the present invention the object is achieved to solve the above problems and bring the technology forward within the field, by a method and device which makes it possible to move the cabinet interior in an advantageous way making the interior installable in existing cabinets without damaging the cabinet and with considerably lowered total cost for the adaption.

From the first aspect of the invention the object is achieved by a method of the art that is mentioned in the preamble and in which a height-adjustable cabinet interior is moved from a first position and out from a cabinet by a first movement in at least the closest to horizontal direction, so to speak a direction parallel to the cabinet bottom, and towards the room and the user, to a second position right in front of the cabinet body front edge. By that the first movement is horizontal, or at least close to horizontal, the measures of the cabinet interior can be maximized in relation to the cabinet inside dimensions, with minimal gaps between the inside of the cabinet body and the top and bottom of the cabinet interior (about 10 mm respectively 5 mm). The distance between the sides of the cabinet interior and the surrounding insides of the cabinet body is mostly depending on the dimensions of the hinges of possible cabinet doors, which rather sets the width of the cabinet interior, than the device itself for moving the interior. The main advantage of the invention is though that the method provides the possibility to position the cabinet interior into existing cabinets without the need of demount them completely and then put them back up, with a complete wall-cabinet lift behind, alternatively to modify the existing cabinets by removing the bottom shelf, to enable the functionality of a so called diagonal lift or vertical lift, see description above. The total cost to install and then later restore, for example a standard kitchen cabinet set up comprising two pieces of 80 cm wide wall- cabinets, is according to the invention in the order of 1/10 compared to corresponding adaption with a wall-cabinet lift, included that the, in existing solutions, normally peripheral equipment such as lighting, decorative strips and the like, must also be adopted for a complete solution, as described above, which is not necessary in this new solution. With the invention the total cost is heavily reduced why the prerequisites, for example for a disabled person to get an adaption of its kitchen in a tenancy or cooperative flat, becomes more favorable than existing alternatives present in the market today.

According to a preferred embodiment of the method, the first horizontal movement out of the cabinet is achieved by an accumulated power in a power accumulating device. Preferably this power accumulating device is a gas strut, but can of course be a hydraulic damper, a compressible spring or another type of suitable power accumulating device. The

accumulated force has at least partly a horizontal force component directed from the first position inside the cabinet and towards the second position outside the cabinet. The accumulated force, which is released when the user initiates this, such as through a remote controlled motor, which then controlled and slowly releases by a resisting force, such as by a drive belt disposed between the cabinet interior and a drive shaft, whereby the power of the power accumulating device is released gradually and projecting the cabinet interior in a horizontal direction, out of the cabinet body and to the second position outside the cabinet body. By that the force being accumulated when the cabinet interior is in its first position, completely inside the cabinet body, the motor doesn't need to provide the first horizontal movement, which movement is essential for the invention. For example in the diagonal lift the motor works in the same way, namely drives a shaft to rotate and wind or rewind a drive belt disposed between the drive shaft and the cabinet interior, but in that case the interior immediately must start a vertical movement, driven by the dead weight and the load of the cabinet content, to achieve the wanted function. Accordingly, the present invention has the advantage that through the use of an accumulated force, and the same simple form of drive - motor and drive belt, achieve a horizontal movement out of the cabinet, which has not been possible in known older solutions. Thereby the above described problem is solved in a cost effective and space-optimized way.

According to another preferred embodiment of the above described method, the power is accumulated in the power accumulating device by moving the cabinet interior towards the first position in the cabinet. Preferably, this is done when the above described motor, so to speak winding up the drive belt, whereby the cabinet interior is moved towards the first position, and thereby for example, one for the purpose dimensioned, gas strut is compressed during the movement. In the interior resting position into the cabinet, the accumulated force from the driving of the cabinet interior by the motor towards the first position, is accumulated in the gas strut and available for the next occasion when the cabinet interior is called out from the cabinet again. The gas strut only needs to be dimensioned to manage to push out the interior from the cabinet, but not to carry any weight from the cabinet interior or the content. According to a preferred embodiment of the method, a second movement is allowed when the cabinet interior has reached the second position outside the cabinet. This second movement has a direction which differs from the first at least almost horizontal movement. Through this it is possible to move the cabinet interior to another location where it preferably has an even better accessibility for the user. The invention is not limited only to work with wall-cabinets, even if that is the main purpose, but it is also applicable with other cabinets where better access is needed. According to an alternative embodiment a second movement is allowed with the same direction as the first movement, i.e. close to horizontal, to move the cabinet interior further to another position with better access than the second position. This new position can be at the front of a countertop, but still at the same level as the wall-cabinet. Depending on the user this position could be good enough to get access to the content of the wall-cabinet, or at least the lower shelves. The new position after the second movement could also allow a third movement, for example a vertical or diagonal movement. This possibility is not at hand in known solutions to increase accessibility to the content of the cabinet. According to one embodiment the second movement of the cabinet interior is performed mainly in a vertical direction, between the second position outside the cabinet body and a third position, which is an end position for the movement of the cabinet interior. In the third position the access is very good and preferably this position is just above the countertop surface and at the front edge of the same. Compared with for example the diagonal lift, which reaches about the same end position, the way to the third position is different, and also to prefer by the same reasons as mentioned above, namely no special adaption of the cabinet, which leads to disposal of the cabinet at restoration of the handicap adaption back to standard layout. At another preferred embodiment of the method the cabinet interior is guided during the first movement by at least one first guide rail, which is fixedly attached, substantially horizontal relative to the cabinet body, either by being attached directly to the cabinet body alternatively mounted on a wall bracket which attaches the device to the cabinet body. To this first guide rail runs at least one first guide wheel, which is provided on a first end of a rotary mounted guide arm. The guide arm is in turn provided at the cabinet interior or on an interior bracket provided at the cabinet interior, and the first guide wheel runs against the first guide rail during the first horizontal movement and prevents a vertical motion of the cabinet interior during its first movement inside the cabinet body. This means that the cabinet interior cannot sag inside the cabinet body even if an overload occurs, namely that the cabinet is loaded with a content which is heavier than the device is dimensioned for according to standards in the art. The overall dimensioning of the motor and the power accumulating device is further favored by that the load is carried by the guide rail and the guide wheel during its first movement. In solutions that lacks cabinet bottom must either drive belts or other locking be arranged to prevent sagging of the interior in the first position. The power accumulating device needs through this only to be dimensioned for the horizontal movement, not to withstand any load in the vertical direction. According to another embodiment of the invented method, the second, substantially vertical movement, is guided by a second guide rail, which is arranged at least almost vertically on the cabinet interior, and at least by a second guide wheel, running against the second guide rail during the second movement. The second guide wheel is also arranged at the above mentioned, rotary mounted guide arm, but on a second end of the same. The vertical guiding of the cabinet interior during the second movement makes the movement of the interior stable. Other, older solutions have problems with that the interior is unstable during movement, which can cause anything of the cabinet content to fall over. According to a preferred embodiment of the invented method, the cabinet interior is stabilized and guided during the second movement by cooperation between the both guide wheels, which are arranged at each end of the rotary mounted, and preferably L-shaped, guide arm. This is done by that the first guide rail at its outer end, includes a tongue, to which the first guide wheel rests in the cabinet interiors second position outside the cabinet body, and also during the second vertical movement. The tongue serves at this position as a stop, preventing an, towards the cabinet body inward, horizontal movement of the first guide wheel, and by that the second wheel is arranged at the other end of the same movable guide arm, also the second wheel is prevented from moving towards the cabinet body. Hereby, a positioning of the both guide wheels is achieved during the second movement. The second guide wheel is also guided by the second, vertical guide rail, which in this position further strengthens the positioning and provides a stable movement during the complete second movement. Older solutions become commonly instable and prone to swing in its outer positions. From the second aspect of the invention the object of solving the above mentioned problems is achieved by a device according to the preamble of claim 9, in which a height-adjustable cabinet interior is arranged to move from a first position into a cabinet and out from the same, by a first movement, at least almost close to a horizontal direction, i.e. a direction parallel to the cabinet bottom, and directed outwards to the room and the user, and to a second position just outside the front edge of the cabinet body, and that at least one guide wheel is arranged to prevent an unwanted vertical movement during this first, horizontal movement. Thereby the cabinet interior cannot sag inside the cabinet even if the cabinet is loaded with content heavier than what the device is dimensioned for according to test standards within the field. The dimensioning of the motor and the power accumulating device is further favored by that the load is carried by the guide wheel during the first movement. In solutions that lacks cabinet bottom, normally the drive belts or other locking must be dimensioned to prevent sagging of the interior in the first position into the cabinet. According to a preferred embodiment of the device, the device comprises a first guide rail, which is fixedly attached, substantially horizontal, relative to the cabinet body either by being attached directly to the cabinet body alternatively mounted in a wall bracket which attaches the device to the cabinet body. To this first guide rail runs at least the first guide wheel during the first horizontal movement, whereby a vertical motion of the cabinet interior is prevented, with the same advantages as mentioned before. The first guide wheel is in this case arranged at the cabinet interior. According to a preferred embodiment, the device comprises a power accumulating device, preferably a gas strut, arranged to accumulate a power component, which at least partly is parallel to the direction of the first movement. The power accumulating device is disposed between the wall bracket, in which the complete device is attached to the cabinet body, and a cabinet bracket to which the height-adjustable cabinet interior is attached. Depending on what type of power accumulating device it is (gas strut, mechanical spring, hydraulic piston etc.) this is placed in an appropriate way. A gas strut must be longer than the movement it shall perform, and in this case it is a horizontal movement of interest as accumulated power, whereby the gas strut must be inclined between the wall-bracket and the interior-bracket. The force is accumulated in the gas strut by moving the cabinet interior towards the first position in the cabinet. Preferably, this is achieved by that the motor, arranged on the wall- bracket, so to speak winding the drive-belt, whereby the cabinet interior is moved towards the first position, and thereby the gas strut gets compressed during this movement. In its resting position in the cabinet, the accumulated power from the motor driving of the interior towards the first position, is thereby at hand, accumulated in the gas strut, and available for the next occasion when the interior is called out from the cabinet. No prior art solutions of height-adjustable cabinet interiors show any possibilities to facilitate a horizontal movement out from a cabinet, which means installation and restoration without significant damage of the cabinet body, lightings, decorative strips etc. In a preferred embodiment of the invention the device comprises preferably two, but at least one, vertical guide rail disposed between the interior bracket and the interior. The vertical guide rail allows the cabinet interior to be displaced in a vertical direction and guides the cabinet interior during this movement. According to a preferred embodiment of the invention, the first guide wheel is rotary mounted at a first end of a, preferably L-shaped, guide arm, which in turn is rotary mounted to the interior bracket, in a fixing point in the knee between the two shanks of the L-shaped guide arm. At the other end of the guide arm, a second guide wheel is rotary mounted, and while the guide wheels are arranged on each end of the rotary mounted guide arm this means that a steering or movement of one guide wheel gives a simultaneous movement of the second guide wheel. While the guide arm is attached to the interior bracket this means that the guide arm and guide wheels follows the cabinet interior during the first movement out of and also into the cabinet and during this movement the first guide wheel is guided by the first guide rail, whereby a vertical movement of the cabinet interior is prevented. When the cabinet interior reaches its second position outside the cabinet, the interior bracket, on which the guide arm is rotary mounted, doesn't follow the cabinet interior down during the vertical movement, which movement is allowed from this second position outside the cabinet.

According to one embodiment the preferred device comprises a second, substantially vertical, guide rail. This is fixedly attached to the cabinet interior and this second guide rail controls the second guide wheel during a second vertical movement of the cabinet interior, between the second position outside the cabinet and a third position, which is a end position for the cabinet interior. At this third position the bottom of the cabinet interior is situated just above the countertop and at the front edge of the same, whereby the content of the cabinet is easy accessible for the user. By the guide arm, the two guide rails (horizontal and vertical) and the two guide wheels, a very good steering is achieved during the two different movements of the cabinet interior, between its two end positions, at the same time as the coupling between the guide wheels through the guide arm makes a coordination possible at the transition between the two different movements, and a simultaneous positioning and stabilization of the transport of the cabinet interior between the end positions. As mentioned before many of the older solutions have had problems primarily with the stability.

As mentioned above the two guide wheels, the guide arm and the guide rails are used for coordination of the transition between the horizontal and the vertical movement of the cabinet interior. According to a preferred embodiment of the invention this coordination is refined by that the first, mainly horizontal, guide rail at its outer end, i.e. closest to the front edge of the cabinet body, comprises a guiding and stopping tongue. This tongue is guiding so far as it leads the first guide wheel into the first guide rail during the transition from the vertical motion to the horizontal motion of the cabinet interior, when the first guide wheel runs from a position located slightly outside, and on a level slightly above, the first horizontal guide rail. Further the tongue is designed to guide also at the opposite sequence, the transition from horizontal to vertical movement, by that the first guide wheel rolls out on the tongue and thereby also moving slightly upwards in relation to the horizontal plane of the first guide rail, whereby also the second guide wheel changes position via the rotary mounted guide arm, and by that the second guide wheel comes into position at the second guide rail. A smooth transition is thus obtained at the transition between the movements. The tongue also has a stopping function because the first wheel stops in position on the tongue in the second position outside the cabinet body and also during the complete second movement, whereby a safe horizontal positioning of the second guide wheel against the second guide rail is achieved, and a stabile motion during the vertical movement, from the second to the third position, is also achieved.

Also the second guide rail comprises, according to a preferred embodiment, a guiding second tongue, arranged at the lower end of the second guide rail and in a similar way as the first tongue. This second tongue leads the second guide wheel during the transition between the horizontal and the vertical movement, in coordination with the first tongue, the guide arm and the first guide wheel. At the opposite sequence - the transition between vertical and horizontal movement - the second guide wheel rolls out on the second tongue and is thereby in position slightly outside and beyond the vertical plane of the second guide rail, whereby also the first guide wheel changes position via the rotary mounted guide arm, and by that the first guide wheel comes into position at the first, horizontal guide rail. A smooth transition is thus obtained at the transition between the movements, by the coordination between the tongues, the guide wheels and the guide arm. The cabinet interior thus achieves a smooth and stably guided motion path between the two directions.

By the invention a number of advantages are achieved compared to prior art:

The device is mountable in existing cabinets without the cabinet bottom must be removed.

Existing lighting, decorative strips and the like can be kept without being affected because the cabinet itself remains undamaged, which is not only relevant to the height- adjustable cabinets but also for the surrounding cabinets, which in prior art solutions is affected by the adaption.

The total cost for adaption of wall-cabinets, normally including two 80 cm wide wall- cabinets, including installation of equipment for the adaption, electrical wiring, lighting, etc. and the cost for restoration of the kitchen cabinets to standard when the need of handicap adaption has ended, is around 1/10 compared to a similar adaption with for example a wall-cabinet lift.

- A stable motion throughout the complete movement of the cabinet interior, from normal position at the wall to the user position down at the front edge of the countertop. Brief description of the figures

Present invention will be explained below according to a non limiting example of embodiment referring to the accompanying figures, in which:

Fig.1 illustrates the field of the invention, and shows the height-adjustable cabinet interior in the important position for the user, the position for good accessibility of the cabinet content.

Fig.2 shows the complete device 1 with the cabinet interior 2 in its second position (b), outside the front edge 12 of the cabinet body 3.

Fig.3 shows one side of the device 1 , with the cabinet interior 2 in its second position (b). - Fig. 4 shows one side of the device 1 , with the cabinet 2 in its third position (c),

accessible for the user.

The structural design of the present invention are apparent in the following detailed description of embodiments of the invention with reference to the accompanying figures which show preferred but not limiting embodiment of the invention.

Detailed description of the figures

Fig. 1 shows a principle view of a preferred embodiment of a device 1 according to the invention. The figure shows a typical application of the invention, where the device 1 is applied into a wall-cabinet 28 in a standard kitchen interior. The device 1 includes a height- adjustable cabinet interior 2, which has left its first position (a) inside a cabinet body 3 and the cabinet interior 2 is in a lowered position, an end position (c) just above a floor cabinet 30 with a countertop 29 on top. This end position (c) provides a good accessibility of the contents of the wall-cabinet 28 through the cabinet interior 2 position at, and just above, the front edge of the countertop 29, which is particularly important for example for disabled people or people of short stature. Furthermore the cabinet door 31 of the wall-cabinet 28 is visible in the figure and the door 31 is opened in its normal position at the cabinet body 3, and the opening of the door 31 is made, according to the invention, by the motion of the cabinet interior 2 when moving out of the cabinet body 3, which cabinet interior 2 then pushes the cabinet door 31 in a slow and controlled movement. Also the closing of the cabinet door 31 is automatic when the cabinet interior 2 passes into the cabinet body 3, preferably according a standard solution available at the market.

Fig. 2 shows a preferred embodiment of the invention in which the cabinet interior 2 is moved, by a first movement 1 1 , horizontally, from its first position (a) inside the cabinet body 3, to a second position (b) just outside the cabinet body 3 The device 1 is largely mirror symmetric, and includes on each side a wall bracket 4, which is attached towards the cabinet body 3 sides or cover. Each wall bracket 4 includes two first horizontal guide vanes 6, a horizontal first guide rail 13, a power accumulating device 14 in the form of a gas strut, a drive belt 9 disposed on a rotatable drive shaft 8, which extends between the two wall brackets 4 on each side of the device 1. One part of the complete device 1 also comprises a motor 7 adapted for driving the drive shaft 8. The motor 7 rotates the drive shaft 8 for winding and unwinding of the drive belt 9, which drive belt 9 thus is fixed with one end to the drive shaft 8 and its other end to the cabinet interior 2. The drive belt 9 runs over a pair of pulley wheels 32, which guide the drive belt 9 and simultaneously allows for a change in direction of the drive belt 9 path. The drive belt 9 is also guided by its attachment to the drive shaft 8 by a wheel 33. The cabinet interior 2 is secured to an interior bracket 5, which in the preferred embodiment is in the form of a rigid sheet metal frame on which the first two, horizontal guide vanes 6 are attached at one end. The other end of the first guide vanes 6 is fixedly arranged, preferably on the wall bracket 4, or directly into the cabinet body 3. Against the interior bracket 5 is also two second guide vanes 16 fixedly arranged with its one end, and which second guide vanes 16 run vertically in relation to cabinet interior 2. The other end of the second guide vanes 16 is fixedly arranged in the cabinet interior 2. Through the first guide vanes 6 the cabinet interior 2, and its interior bracket 5, are movable in the horizontal direction between the first position (a) of the cabinet body 3 and the second position (b) just outside the cabinet body 3. Through the second guide vanes 16 is the cabinet interior 2, but not the interior bracket 5, movable in vertical direction between the second position (b), just outside the cabinet body 3, and the third position (c). On the interior bracket 5 is a rotary mounted guide arm 17 provided. This guide arm 17 preferably has an L-shape and at a first end 19, a first guide wheel 10 is mounted, and at a second end 26 a second guide wheel 18 is mounted. The first guide wheel 10 rolls against the horizontal first guide rail 13, during the cabinet interiors 2 first movement 1 1 , between the first position (a) and the second position (b). The second guide wheel 18 rolls, during a vertical second movement 21 , against a vertically disposed, second guide rail 20, see description in connection to Figure 3-4. To arrange a smooth transition between the different movements 1 1 , 21 , the first guide rail 13 comprises a folding - a first tongue 23 - at its outer end 22. The second guide rail 20 has a corresponding folding - a second tongue 25 - at its lower end 24. This is explained in connection with Figure 3-4.

Fig. 3 shows the cabinet interior 2 in the second position (b), where the cabinet interior 2 has been moved through the vertical second movement 21 , from the third position (c) above the countertop 29. For clarity the countertop 29, the cabinet body 3 and, in the figure the far details of the device, are not shown.

When the cabinet interior 2 is drawn by the motor 7, via the drive belts 9, horizontally into the cabinet body 3 in direction towards the first position (a), simultaneously a power is accumulated in the respective power accumulating device/gas strut 14, by that this being compressed during this first movement 1 1. The stored power is then used for the reverse movement, to push the cabinet interior 2 out of the cabinet body 3, in the horizontal first movement 1 1. This is done in coordination with the motor 7 so that when the motor 7 starts to rotate the drive shaft 8 (not shown) in the opposite direction related to the winding rotation direction, the power accumulating device 14 expands and provides a horizontal force which balances the motor 7 rewinding speed. Initially, the motor 7 is controlled to a slow rotational motion of the drive shaft 8, not to make the cabinet doors 31 (not shown) open too quickly. Through coordination between the motor 7 and the power accumulating device 14 a soft first movement 1 1 out of the cabinet is achieved, and during this motion the first guide wheel 10 rolls towards the first guide rail 13, which ensures that no sagging of the cabinet interior 2 occurs during the movement, or for that matter, in resting position (a) inside the cabinet body 3. In the figure and detail A, the transition between the vertical second movement 21 , and the horizontal first movement 1 1 is shown, which causes the position of the respective guide wheels 10, 18.

In the second position (b) of the cabinet interior 2, at the transition from the horizontal first movement 1 1 to the vertical second movement 21 , the first steering wheel 10 rolls up on the first tongue 23, wherein a rotary motion, of the rotary mounted guide arm 17, is accomplished around the fixing point 27 of the guide arm 17. This leads to the second guide wheel 18 rolls off the second tongue 25 and onto the second guide rail 20. Conversely, at the transition from the second vertical movement 21 , to the horizontal first movement 1 1 , the second guide wheel 18 rolls onto the second tongue 25, whereby a rotary movement of the rotary mounted guide arm 17 is accomplished. This leads the first guide wheel 10 to roll off the first tongue 23 and onto/into the first guide rail 13. Through the guide arm 17 a very smooth transition between the two different movements is permitted.

Fig. 4 shows the cabinet interior 2 in the third position (c), above the countertop 29, wherein the cabinet interior 2 has been moved through the vertical second movement 21 , from the second position (b) outside the cabinet body 3. For clarity the countertop 29, the cabinet body 3 and, in the figure the far details of the device, are not shown.

When the cabinet interior 2 and the interior bracket 5 have reached the second position (b), the guide vanes 6 has reached their maximum position , whereby the power accumulating device/the gas strut 14 cannot expand further. Firstly in this second position (b) the design allows a transition from the horizontal first movement 11 to the vertical second movement 21. In this second position (b) is, as described above, the first guide wheel 10 engaged to the first tongue 23 and rolls out onto the same simultaneously as the second guide wheel 18 rolls off the second tongue 25 and onto the second guide rail 20, on the side facing the cabinet body 3. Throughout the vertical second movement 21 the first guide wheel 10 rests towards the first tongue 23, and thus serves as counter support against an inward, horizontal movement of the cabinet interior 2, and positions the second guide wheel 18 , and thereby the cabinet interior 2, during the second movement 21. A stable and horizontally fixed second movement 21 is thereby obtained. The vertical second guide vanes 16 are secured between the interior bracket 5 and the interior cabinet 2, and helps directing the interior cabinet 2 during the vertical movement. The interior bracket 5 retains the position at the second position (b) outside the cabinet body 3 in the vertical second movement 21. The transitions between the two movements 1 1 , 21 have been described above in caption 3. In the third position (c) full access to the content of the, otherwise more difficulty accessed wall- cabinet 28, is obtained.

P A R T S L I S T

1 = device

2= cabinet interior

3= cabinet body

4= wall bracket

5= interior bracket

6= first guide vane

7= motor

8= drive shaft

9= drive belt

10= first guide wheel

1 1= first movement

12= front edge

13= first guide rail

14= power accumulating device

15= power component

16= second guide vane

17= guide arm

18= second guide wheel

19= first end

20= second guide rail

21 = second movement

22= outer end

23= first tongue

24= lower end

25= second tongue

26= second end

27= fixing point

28= wall-cabinet

29= countertop

30= floor cabinet

31 = cabinet door

32= pulley wheel

33= wheel