EP3980619A1

EP3980619A1 - Piece of furniture having a door held by a translation device

Info

Publication number: EP3980619A1
Application number: EP20730024.5A
Authority: EP
Inventors: Gregor Haab; Pascal Prehm
Original assignee: Hawa Sliding Solutions AG
Current assignee: Hawa Sliding Solutions AG
Priority date: 2019-06-07
Filing date: 2020-06-03
Publication date: 2022-04-13
Anticipated expiration: 2040-06-03
Also published as: EP3980619B1; CN113874593B; WO2020245166A1; US20220213726A1; CN113874593A

Abstract

The invention relates to a piece of furniture (10) comprising a single-part or multi-part door (11), which is used to close an opening of the piece of furniture (10) and which is connected by means of hinges (3) to a mounting profiled element (85). The mounting profiled element is held for translation between a first end position and a second end position within a door compartment (14) by a translation device (1), which translation device (1) has a lever mechanism (5). The lever mechanism comprises four lever units (51, 52, 53, 54), which can be rotated in a plane, a first connecting web (58A), a second connecting web (58B) and a center web (55), which center web (55) is connected in an articulated manner, on a first side, to the first connecting web (58A) by means of a first lever unit (51) and a second lever unit (52), which are mutually spaced apart and oriented mutually parallel, the first connecting web being connected to at least one holding device (84A, 84B) mounted on the piece of furniture (10), and which center web (55) is connected in an articulated manner, on a second side, to the second connecting web (58B) by means of a third lever unit (53) and a fourth lever unit (54), which are mutually spaced apart and oriented mutually parallel, the second connecting web being connected to the mounting profiled element (85). According to the invention, in the first end position of the mounting profiled element (85) the lever units (51, 53; 52, 54) are oriented at least approximately parallel to the first and second connecting webs (58A, 58B) and are at least partly sunk into the center web (55), which center web (55) is at least partly sunk into at least one of the first and second connecting webs (58A, 58B) in said first end position of the mounting profiled element (58).

Description

Piece of furniture with a door held by a sliding device

The invention relates to an item of furniture, such as a cupboard, with a one-part or multi-part door, in particular a folding sliding door, which is held by a sliding device and can be moved into a door compartment.

To close an opening in a piece of furniture, doors, in particular folding sliding doors, are often used which, after opening the piece of furniture, can be slid into a door compartment of the piece of furniture. When the piece of furniture is opened, the door is turned to the side or folded. So that the door does not appear disruptive afterwards, it is moved into the door compartment, which is usually separated from the interior of the piece of furniture by a partition.

US8336972B2 discloses an item of furniture with a sliding device by means of which a folding sliding door connected by hinges to a mounting profile can be extended out of a door compartment, rotated in front of an opening and then lowered back into the door compartment. The displacement device comprises a scissor cross, which has two hingedly connected scissor elements which hold the mounting profile aligned in a vertical position during the displacement within the door compartment. The scissors cross is connected to the mounting profile by a fastening device. After loosening the fastening device, the mounting profile can be moved vertically with respect to the scissor cross in order to position the door within the door compartment at the same distance from the top and bottom of the piece of furniture.

If no scissor cross is used, it must be ensured that parts of the lever mechanism are removed before connection to the mounting profile possibly occupy an undefined position, so that the optimal position must first be determined with appropriate effort before the connection with the mounting profile.

The mounting profile is not only held by the scissor cross, but is also guided along an upper and a lower rail to prevent the scissor cross from twisting and jamming.

It should be noted that a sliding device of this type can take up a relatively large amount of space, so that the door held by the sliding device cannot be lowered into the door compartment as far as is desired. The door or folding sliding door and its elements must therefore be dimensioned correspondingly smaller. Alternatively, the door compartment is designed to be correspondingly larger, which is why the design of the displacement device can have an undesirable influence on the dimensioning of the piece of furniture.

EP3029248A1 discloses a displacement device with a lever mechanism which is designed as a scissors cross or as a parallelogram and has levers guided parallel to one another, by means of which a mounting profile which is hingedly connected to a door is held displaceably.

US2014150208A1 discloses an item of furniture which comprises a folding sliding door with several door elements and a guide rail which runs along the front side of the furniture item and around a 90 ° curve into the door compartment. In this piece of furniture, the front door element is held by a guide drive that runs ahead when the door is opened and closed. After the folding sliding door has been moved into the door compartment, the folding sliding door is therefore suspended on one side, which is why misalignment of the folding sliding door can occur. At the When moving into the door compartment, the folded folding sliding door can therefore possibly contact the floor or the ceiling of the piece of furniture. Due to manufacturing and assembly tolerances, the task of the sliding device, to keep the door or folding sliding door in a vertical orientation in every position within the door compartment, can therefore often not be optimally fulfilled.

The present invention is therefore based on the object of creating an improved piece of furniture with an improved sliding device.

By means of the improved displacement device, the one-part or multi-part door should advantageously be able to be displaced into a door compartment without contacting the floor or ceiling of the door compartment. In particular, an improved sliding device for a piece of furniture is to be created which has a folding sliding door with door elements, one of which is held by means of a guide drive which can be moved along a guide rail which runs along the front of the piece of furniture and into the door compartment.

The displacement device should take up little space and make it possible to move the mounting profile over a maximum distance.

The displacement device is intended to make the mounting profile with the door connected to it stable in the vertical direction over the entire displacement range and in particular in the end positions

Keep alignment. Any misalignments that occur should be able to be corrected in a simple manner and with simple means. The displacement device should also make it possible to mount the mounting profile and also the door in a simple manner.

This object is achieved with a piece of furniture which has the features specified in claim 1. Advantageous embodiments of the invention are specified in further claims.

The piece of furniture comprises a one-piece or multi-piece door which is used to close an opening in the piece of furniture and which is connected by hinges to a mounting profile which is held within a door compartment by a sliding device between a first end position and a second end position, which sliding device is a Having a lever mechanism comprising four lever units rotatable in one plane, a first connecting web and a second connecting web and a central web, which central web is articulated on a first side by a first lever unit and a second lever unit, which are spaced apart from one another and aligned parallel to one another, each articulated with the first connecting web is connected, which is connected to at least one holding device mounted on the piece of furniture, and which central web is on a second side by a third lever unit and a fourth lever unit, which are spaced apart from one another and parallel to one another are aligned nander, each is articulated to the second connecting web that is connected to the mounting profile.

According to the invention it is provided that in the first end position of the mounting profile the lever units at least aligned approximately parallel to the first and second connecting webs and at least partially sunk into the central web, which central web in this first end position of the mounting profile is at least partially sunk into at least one of the first and second connecting webs.

The first connecting web can be connected to the holding device in one piece or detachably, optionally via an adapter. The second connecting web can be connected to the mounting profile in one piece or detachably, if necessary via an adapter.

The parallel alignment of the parts of the displacement device in the end position in which the door is completely pushed into the door compartment, and the mutual displacement of the parts of the displacement device into one another, results in a small space requirement. The central web and the lever units and preferably also connecting webs connected to them can be completely or partially displaced into one another, so that they are aligned parallel and almost coaxially to one another with a minimal distance. The door can therefore be pushed into the door compartment over a maximum distance, which is why doors with a greater width can be used.

The sliding device according to the invention can be used particularly advantageously in a piece of furniture that has a folding sliding door or a door with several door elements, one of which is held by a guide drive that can be moved along a guide rail that has a first rail part running along the front side of the furniture and a second rail part extending within the door compartment and connected to one another by a rail curve. Through the according to the invention, the door or folding sliding door can be held vertically aligned in any position within the door compartment.

If there is a misalignment of the door pushed into the door compartment, this can be easily compensated either by a bearing element or corrected by adjusting the lever mechanism.

The displacement device can be adjusted between a first end position in which the lever mechanism is completely folded and the door is completely pushed into the door compartment, and a second end position in which the lever mechanism is fully unfolded and the door is extended correspondingly far out of the door compartment.

In preferred embodiments, the first and the second lever unit are connected by lever joints to the first connecting web on the one hand and to the central web on the other hand. In this embodiment, the third and fourth lever units are each connected to the second connecting web on the one hand and to the central web on the other hand by means of lever joints.

To adjust the displacement device or the lever mechanism, it is preferably provided that the distance between the lever joints and thus the distance between the axes of rotation of the lever joints of at least one of the lever units is optionally adjustable. An adjustment range is provided that allows maximum possible misalignments to be corrected.

The distance between the lever joints and thus the distance between the associated axes of rotation of the third and fourth lever units, which form the underside of the lever mechanism and for the correction of any inclination in the The end position of the mounting profile when the lever system is folded together are particularly suitable.

To change the distance between two mutually corresponding lever joints, it is preferably provided that at least one of the lever joints is mounted displaceably along the longitudinal axis of the associated lever unit and is displaceable and fixable by means of an adjusting device.

The adjusting device preferably comprises a bearing block which is mounted in the associated lever unit so as to be displaceable at least approximately along its longitudinal axis, which is adjustable by means of an adjusting screw which is held in a rotatable and axially non-displaceable manner and which holds a cardan shaft of the associated lever joint. The cardan shaft determines the axis of rotation, which is why the distance between the axes of rotation of the lever unit in question is also changed by moving the bearing block. In this way, the inclination of the held door or folding sliding door can be set in a simple manner, especially in the critical end position of the assembly profile when the lever mechanism is folded.

The bearing block preferably has a cross section which is adapted to an internal cross section of the lever unit, which corresponds, for example, to a U-profile or a T-profile provided with retaining grooves. The bearing block is thereby held in a form-fitting manner and can only be moved along the longitudinal axis of the lever unit. The adjusting screw is preferably aligned axially parallel or coaxially to the longitudinal axis of the lever unit and engages with the screw shaft in a threaded hole of the bearing block and can thus move it axially by rotating the adjusting screw. So that the cardan shaft can now be moved with the bearing block, appropriate longitudinal openings must be provided in the legs of the U-profile-shaped lever unit, for example. The longitudinal openings run preferably parallel to the longitudinal axis of the lever unit and thereby allow the articulated shaft and thus the axis of rotation of the lever joint to be displaced.

The adjusting screw itself is not axially displaceable but rotatably held by a holding block. The holding block is e.g. braced within the internal cross-section of the lever unit or held in a slot, e.g. is incorporated in this perpendicular to the longitudinal axis of the lever unit. The holding block has e.g. Ribs or wings that can be inserted into holding grooves that run perpendicular to the longitudinal axis in the lever unit. By inserting the adjusting screw and connecting it to the only axially displaceable bearing block, the holding block is now also fixed in the receiving position.

The first and second lever units are rotatably held by the central web and must therefore, before they can be connected to the mounting profile, be brought into a corresponding orientation that is a mirror image of the orientation of the third and fourth lever unit. This connection takes place in the second end position of the displacement device with an unfolded part of the lever mechanism, which comprises the third and fourth lever units, which are already connected to the holding device or the holding devices. The first and second lever units are not yet connected and are therefore rotated downwards by gravity against the bottom of the door compartment. The task is therefore to facilitate the correct connection of the lever mechanism to the mounting profile and, in particular, to avoid multiple adjustments.

So that the installer does not have to determine the alignment himself, a balancing device is preferably provided which ensures that the first and second lever units are always mirror-symmetrical to the third and fourth Are aligned. The balancing device comprises two balancing levers connected to one another by a sliding joint, the ends of which are each connected to an associated lever unit in such a way that they form a four-bar linkage. The two balancing levers are connected to lever units of the lever mechanism which are at the same height, ie to the first and third lever units and / or the second and fourth lever units. The balancing unit can therefore be designed in one piece or in two pieces. The diagonally opposite lever joints of the resulting quadrangle form joint pairs that behave in opposite directions. As one pair of joints approaches, the distance of the other pair of joints increases and vice versa. The sliding joint is slidably guided and held in a guideway of the central web and moves back and forth when the quadrangle of the joint is changed.

This ensures that the lever units of the lever mechanism are always kept at the same height. The first and second lever units provided for connection to the mounting profile and the first connecting web connected thereto are therefore held in the second end position of the lever mechanism in a position in which they can be connected to the mounting profile. It is therefore not necessary to manually hold the first and second lever units and the first connecting web connected to them in a suitable position and to carry out corrections if necessary.

It should be noted that the invention thus comprises various solutions which can also be used independently of one another, but which complement one another ideally. The adjustability of the distances of the axis of rotation of the lever mechanism by at least one adjusting device can be independent of the use of a one-piece or two-piece balancing device can be provided. Conversely, the balancing device can be used independently of the adjustability of the distances between the axis of rotation of the lever mechanism. On the other hand, if all solutions are implemented, the overall installation effort is significantly reduced. Incorrect settings and undesired misalignments of the door or the folding sliding door as well as correspondingly complex

Corrective measures are not required.

Preferably, damping elements are connected in the piece of furniture or with the displacement device, which act directly or indirectly on the door and gently grasp it and accompany it into the end position.

In preferred refinements, the third and fourth lever units, which face the at least one holding device connected to the piece of furniture, each comprise two preferably plate-shaped lever elements, which are arranged at a distance from one another and preferably parallel to one another. The first and second lever units which face the mounting profile preferably also each comprise two preferably plate-shaped lever elements which are arranged at a distance from one another and preferably parallel to one another. In preferred configurations, however, the lever units are formed in one piece.

The central web preferably has an L-profile, an H-profile or a U-profile with a profile space delimited by profile parts into which the associated first and / or second and / or third and / or fourth lever unit can be sunk.

The third and fourth lever units are preferably those of the at least one connected to the piece of furniture Holding device are facing, or the first and second lever units, which are facing the mounting profile, can be rotated into the central web.

In a further preferred embodiment it is provided that the first and second lever units or the third and fourth lever units are rotatably held on the outside of the central web.

The lever units can therefore be aligned parallel to it inside or outside the central web, so that only minimal space is required. The lever units can be partially or preferably completely sunk into the central web.

In a further preferred embodiment, it is provided that the first or the second rod-shaped connecting web each have an L-profile or a U-profile, which has a profile space delimited or adjacent by profile parts, into which parts of the lever mechanism can be inserted or screwed. The profile spaces of the connecting webs can have identical or different dimensions. The connecting webs can accommodate the same proportions of the lever unit and the central web. With different configurations of the profile spaces, it can be provided that one of the connecting webs not only receives the lever units and the central web, but also the other connecting web in whole or in part.

The lever units rotate together downwards or upwards when the lever mechanism is operated. The direction of movement is selected taking into account whether the weight of the lever mechanism should support the door being pushed in or pulled out. The invention is explained in more detail below with reference to drawings. It shows:

Fig. 1 shows a piece of furniture 10 with one of one

Mounting profile 85 held door 11 before mounting a displacement device 1 according to the invention;

2 shows a piece of furniture 10 with an inventive

Displacement device 1, which has a lever mechanism 5 with four lever units 51, 52, 53, 54, which is connected on the one hand to holding devices 84A, 84B and on the other hand to a mounting profile 85 on which a door 11 with two door elements 111, 112 is mounted by hinges 3 is;

Fig. 3 shows the piece of furniture 10 from FIG. 2 with extended lines

Door elements 111, 112, of which the first door element 111 is articulated on one side with the mounting profile 85 and on the other side articulated with the second door element 112, which is held displaceably along a guide rail 83 at the front by means of a drive 6;

4 shows the displacement device 1 from FIGS. 2 and 3 with the lever mechanism 5 inverted with the first and second lever units 51, 52, which are connected to the holding devices 84A, 84B and to the third and fourth lever units 53, 54, which are connected to the mounting profile 85;

FIG. 5a shows the third and fourth lever units 53 and 54 of the lever mechanism 5 of FIG. 2 connected to the second connecting web 58B and axially aligned with it; Fig. 5b with the first connecting web 58A and the

First and second lever units 51, 52 of the lever mechanism 5 of FIG. 2 connected to the central web 55 and axially aligned therewith; Fig. 5c with the first connecting web 58A and the

Central web 55 connected to and axially aligned first and second lever units 51, 52 with partially open lever mechanism 5;

Fig. 5d shows a detailed representation of the upper part of the

Central web 552 and the lever elements 511, 512 of

5c, which are connected to one another by the upper central lever joint 563;

FIG. 5e shows a detailed representation of the lower part of the first connecting web 58A and the lever elements 521, 522 from FIG. 5c connected to a profile blade 581 by the lever joint 564;

FIG. 5f shows the completely folded displacement device 1 from FIG. 2; FIG.

6a shows the upper end of the displacement device from

Fig. 5f;

FIG. 6b shows a detailed illustration of the displacement device 1 from FIG. 6a; FIG.

7a shows the lever mechanism 5 from FIG. 4 in a preferred manner

Design; FIG. 7b shows the lever mechanism 5 from FIG. 7a supplemented with two

Balancing devices 7;

FIG. 8a shows the lower part of the lever mechanism 5 from FIG. 7a with second and fourth lever units 52 and 54, which are each provided with an adjusting device 59; 8b shows the second in an enlarged representation

Lever unit 52 of FIG. 8a with the adjusting device 59;

9a shows part of one of the lever units 51, 52, 53, 54 with an inserted adjusting device 59 which has a displaceable and adjustable bearing block 591 by which a cardan shaft 595 of an associated lever joint is held;

FIG. 9b shows the adjusting device 59 from FIG. 9a in one

Longitudinal section;

FIG. 9c shows the multipart propeller shaft 595 from FIG. 9a; FIG.

FIG. 10a shows a displacement device 1 with the folded lever mechanism from FIG. 7a; FIG. and

10b shows the displacement device 1 from FIG. 10a without the

Connecting webs 58A, 58B.

Fig. 1 shows an item of furniture 10 with a door 11 held by a mounting profile 85 before the assembly of a displacement device 1 according to the invention. The door 11 is approximately half inserted into a door compartment 14 that is separated from an outer wall 12 and an intermediate wall of the item of furniture 10 is limited. The mounting profile 85 is rotatably connected to the door 11 by three hinges 3, so that the latter can be pulled out of the door compartment 14 and rotated in order to cover an opening in the piece of furniture 10.

The mounting profile 85 is guided displaceably by means of drives 88 (shown symbolically) from an upper and a lower holding rail 81 and 82 along a displacement axis y within the door compartment 14. Weight forces of the door 11 are absorbed by the holding rails 81, 82. On the other hand tilting moments t of the door 11, which cause an inclination, cannot be compensated for by the support rail 81, 82 and drives. The assembly profile 85 is therefore connected in a further assembly step to a displacement device 1 according to the invention, as shown for example in FIG. 2 or in FIG. 7a. By means of the displacement device 1 according to the invention, the mounting profile 85 and thus the door 11 are always kept precisely in a vertical orientation over the entire displacement range. Any misalignments can be easily corrected. The displacement device 1 according to the invention can also be installed simply and precisely by using a balancing device 7 (see FIG. 7b).

FIG. 2 shows parts of the item of furniture from FIG. 1 with a two-part door or folding sliding door 11 with a first door element 111, which is guided with the mounting profile 85 along the retaining rails 81, 82 and connected to a second door element 112 by hinges 30. The second door element 112, which has moved into the door compartment 114 on the front side, is connected on the front side to a guide drive 6 (shown symbolically), which is guided in a guide rail 83. The guide rail 83 has a first rail part 831 running parallel to the front side of the piece of furniture 10 and a second rail part 832 leading into the door compartment 14. The two rail parts 831, 832 are connected to one another by a curved piece 833. The guide carriage 6 can therefore travel over the entire area of the guide rail 83. After the folding-sliding door 11 has been extended and unfolded, the drive 6 moves ahead with the front side of the second door element 112. The piece of furniture 10 is now equipped with a displacement device 1 according to the invention, which includes a lever mechanism 5.

In FIG. 2, the folding sliding door 11 is almost completely retracted into the door compartment 14 and is only held on one side by the sliding device 1 and by the drives of the running rails 81, 82 and the guide rail 83. The door therefore has a strong tendency to tilt forward, which is why a misalignment of the door 11 results if the adjustment of the displacement device 1 is not optimal.

To compensate for this inclination, a bearing element 9 is provided in a preferred embodiment in the area of the front end of the door compartment 14, on which the first and / or the second door element 111, 112 can be supported. The door elements 111, 112 are preferably released from the bearing element 9 before they are rotated in front of the opening of the piece of furniture 10. As a bearing element, e.g. a bearing roller 9 can be used, which is held by a bearing shaft 99. A plurality of bearing elements are preferably provided so that the load is divided. It is also possible to combine different bearing elements, e.g. the combination of a roller bearing and a plain bearing.

In a preferred embodiment, however, the misalignments are corrected by adjusting or setting the lever mechanism 5, as is described below.

The lever mechanism 5 comprises first and second lever units 51, 52, which are articulated to one another on the one hand by a rod-shaped central web 55 and on the other hand by a first connecting web 58A, as well as third and fourth lever units 53, 54, which are connected on the one hand by the central web 55 and on the other hand, are articulated to one another by a second connecting web 58B.

At the connection points of the resulting polygonal joint, lever joints 561, 562, 563, 564, 565, 566 are provided which allow the mutually connected elements to rotate. The two lever joints 565, 566, which are each connected to two lever units 51, 53 or 52, 54, are provided on the central web 55. Alternatively, a lever joint 565, 566 can also be provided on the central web 55 for each of the lever units 51, 53 or 52, 54.

The first connecting web 58A is integrally or detachably connected to holding devices 84A, 84B which are attached to the rear e.g. are firmly mounted on the rear wall or a side wall of the piece of furniture 10. The second connecting web 58B is integrally or detachably connected to the mounting profile 85, which is connected to the folding sliding door 11 via hinges 3.

The lever mechanism 5 shown in more detail in FIG. 4 forms two mirror-symmetrical parallelograms which perform the same movements during the retraction and extension of the door 11. The lever units 51, 53, 52, 54 each have a first end piece Eil; E31; E31; E41 and a second end piece E12; E32; E32; E42 on.

When the door 11 is pushed in, the parts of the lever mechanism 5, in particular the lower and upper lever units 53, 54; 52, 54, shifted into one another and aligned parallel to one another. In preferred embodiments, the lever units 53, 54; 52, 54 and the connecting webs 58A, 58B shifted into one another. In a preferred embodiment, the parts of the lever mechanism 5 can also be parallel to one another aligned are shifted into the mounting profile 85, whereby the space requirement is minimized.

FIG. 3 shows the piece of furniture 10 from FIG. 2 with the door elements 111, 112 pulled out but not yet unfolded, of which the first door element 111 is articulated on one side with the mounting profile 85 and on the other side articulated with the second door element 112, which is held at the front by means of the guide carriage 6 along the guide rail 83 so as to be displaceable. The door 11 was grasped by a handle 112 and pulled out of the door compartment 114. During this process, the lever units 51, 52, 53, 54 and the central web 55 were raised. Additional force was therefore required to pull out the door elements 111, 112. The pushing in of the door elements 111, 112, however, is now supported by the weight of the lever elements 51, 52, 53, 54 and the central web 55. If, on the other hand, the pulling out of the door elements 111, 112 is to be supported by the weight of the lever elements 51, 52, 53, 54 and the central web 55, the lever mechanism 5 is inverted, as shown in FIG. 4.

Fig. 4 shows the displacement device 1 of Fig. 2 and Fig. 3 with the inverted orientation of the lever mechanism 5 in a larger representation, in which the design of the parts of the lever mechanism can be seen.

It is shown that lever units 51, 53; 52, 54 two plate-shaped lever elements 511, 512; 531, 532; 521, 522; 541, 542 supported by the first and second peripheral upper lever joints 561, 563; the first and second peripheral lower lever joints 562, 564 and the upper and lower central lever joint 565, 566 are held at a predetermined distance from one another. The central web 55 has a U-profile with two legs which are open in the direction of the holding devices 84A, 84B or in the direction of the first connecting web 58A. In contrast, the first connecting web 58A has a profile blade 581 which is directed against the central web 55 and can enter between the legs of the central web 55. The profile blade 581 preferably has recesses into which the cardan shafts can enter.

The second connecting web 58B, which is connected to the central web 55 by the third and fourth lever units 53 and 54, has a U-profile that is open in the direction of the central web 55 and can accommodate the entire folded lever mechanism 5.

The distance between the plate-shaped lever elements 511, 512; 521, 522 of the first and second lever units 51, 52, which connect the central web 55 and the first connecting web 58A to one another, is less than the distance between the side plates of the U-profile of the central web 55 but greater than the width of the profile blade 581 plate-shaped lever elements 511, 512 held by the U-profile of the central web 55; 521, 522 can therefore be screwed into the U-profile of the central web 55 and at the same time also receive the profile blade 581 of the connecting web 58A, as shown in FIG. 5b.

The distance between the plate-shaped lever elements 531, 532; 541, 542 of the third and fourth lever units 53, 54, which face the mounting profile 85, is greater than the width of the U-profile-shaped central web 55, so that the lever elements 531, 532; 541, 542 can accommodate the central web 55 between them. At the same time, the distance between the plate-shaped lever elements 531, 532; 541, 542 of the third and fourth lever units 53, 54 less than the width of the second connecting web 58B, so that they can be screwed down or up into the U-shaped second connecting web 58B, as shown in FIG. 5a. With the plate-shaped lever elements 531, 532; 541, 542 of the third and fourth lever units 53, 54, the lever assembly of FIG. 5b held between them can be screwed into the U-profile-shaped second connecting web 58B at the same time. During this process, the first connecting web 58A is thus also pushed into the second connecting web 58B.

FIG. 5a shows the lever units 53 and 54 of the lever mechanism 5 from FIG. 4 connected to the U-shaped second connecting web 58B and axially aligned with it.

FIG. 5b shows the lever units 51, 52 of the lever mechanism 5 of FIG. 4 connected to the first connecting web 58A and the central web 55 and axially aligned therewith.

FIG. 5c shows the lever units 51, 52 connected on the one hand to the first connecting web 58A and on the other hand to the central web 55 and axially aligned thereto with the lever mechanism 5 partially open.

FIG. 5d shows a detailed illustration of the upper part of the central web 552 and the lever units 511, 512 from FIG. 5c, which are connected to one another by the upper central lever joint 563;

FIG. 5e shows a detailed illustration of the lower part of the first connecting web 58A and the lever units 521, 522 of FIG. 5c connected to the profile blade 581 by the first peripheral lower lever joint 564. FIG. 5f shows the completely folded displacement device 1 from FIG. 4th

Fig. 6a shows the upper end of the completely folded displacement device 1 of Fig. 5f. It can be seen that practically the entire lever mechanism is accommodated by the mounting profile 85 and thus virtually no additional space is required for the lever mechanism 5.

FIG. 6b shows a detailed illustration of the displacement device 1 from FIG. 6a. It is shown that in the second connecting web 58B held by the mounting profile 85, the lever elements 531, 532 of the lever unit 53 and between these the central web 55 are received, in which the lever elements 511, 512 of the lever unit 51 and in between the profile blade 581 of the first connecting web 58A are included.

Fig. 7a shows the lever mechanism 5 of Fig. 4 in a preferred embodiment with U-profile-shaped connecting webs 58A, 58B and an H-profile-shaped central web 55 and with one-piece lever units 51, 52, 53, 54, each preferably one Have a U-profile-shaped cross section which is suitable for receiving an adjusting device 59. Adjusting devices 59 can be provided on all end pieces of all lever units 51, 52, 53, 54. The lever mechanism 5 can be adjusted particularly advantageously if an adjusting device 59 is provided on the end piece E21, E41 of the second lever unit 52 and / or the fourth lever unit 54 connected to the associated connecting web 58A, 58B. By actuating the adjusting device 59, the lever axes of the associated lever unit 52 or 54 can optionally be shifted relative to one another. The adjusting devices 59 are preferably adjusted in the folded state of the lever mechanism 5 in order to prevent the door or folding sliding door 11 from being misaligned correct. The folded lever mechanism 5 with a view of the adjusting screws 59 is shown in FIG. 10a.

7a also shows that the first and second lever units 51, 52 can be pushed into the H-profile of the central web 55 from the one side and the third and fourth lever units 53, 54 from the other side. During this process, the first and second lever units 51, 52 and part of the central web 55 are pushed into the first connecting web 58A and the third and fourth lever units 53, 54 and part of the central web 55 are pushed into the second connecting web 58B. The cardan shafts of the lever joints 561, 563, which connect the first lever unit 51 to the first connecting web 58A and the third lever unit 53 to the second connecting web 58B, are received in receiving openings 550 provided in the central web 55.

The folded displacement device 1 with the folded lever mechanism 5 of FIG. 7a is almost completely accommodated by the mounting profile 85 and takes up little space.

7b shows the lever mechanism 5 from FIG. 7a supplemented with two balancing devices 7. Since all parts of the lever mechanism 5 are coupled to one another, it would be sufficient to provide only one balancing device 7, for example for connecting the second and fourth lever units 52, 54. If, on the other hand, the balancing devices 7 are to absorb larger loads, two of them may be used.

Each symmetrizing device 7 forms a 3-point connection with the lever mechanism 5. Two points are connected in a non-displaceable manner to mutually corresponding or mirror-symmetrical lever units 51, 53 or 52, 54. The third point can be moved along the central web 55. The balancing device 7 comprises two balancing levers 71, 72, which on the one hand are rotatably connected to each other by a sliding joint 73 and on the other hand by joints 711, 721 either with the first and third lever units 51, 53 or with the second and fourth lever units 52 or 54. The joints can be configured in the same way as the lever joints of the lever mechanism and typically comprise a cardan shaft which pierces the levers that correspond to one another or their end pieces. The sliding joint 73 is mounted displaceably in a guide track 551 of the central web 55. The corresponding lever units 51, 53 or 52, 54 are therefore always held mirror-symmetrically by the balancing device 7, ie with the same inclination to the central web 55. The second connecting web 58B can therefore easily be connected to the mounting profile 85 of FIG. 1. Corrections are unnecessary or reduced to a minimum. The sliding joint 75 includes, for example, a wheel with a circular circumferential wheel groove which is delimited by wheel flanges. The wheel is pierced centrally by a cardan shaft which holds the facing ends of the balancing levers 71, 72.

7b shows that the guide track 551 has an inlet opening 5510 into which the sliding joint 73 is inserted such that the ends of the guide track 551 adjoining the inlet opening 5510 can engage as guide flanges in the wheel groove. The sliding joint 73 is thus held in the guide track 551 and can only be moved axially along this guide track 551 or axially along the longitudinal axis x of the central web 55 (see FIG. 7a). When the associated lever units 51, 53 or 52, 54 are rotated, the symmetry levers 71, 72 thus rotate about the resulting symmetry axes or joint axes sl, s2, s3 of the joints 711, 721, 731. Even with the installation of a balancing device 7, all parts of the lever mechanism 5 are positively guided, which is why the first and second lever units 51, 52 are guided mirror-symmetrically to the third and fourth lever units 53, 54 even if there is no guidance through the holding rails 81, 82. The precise positioning of the lever mechanism 5 for connection to the mounting profile 85 of FIG. 1 therefore takes place automatically.

FIG. 8 a shows the lower part of the lever mechanism 5 from FIG. 7 a with the second and fourth lever units 52 and 54, which are each provided with an adjusting device 59. It can be seen that the first and second connecting webs 58A, 58B each have a U-profile which are open to one another. The central web 55 has an H-profile into which the second and fourth lever units 52, 54 can enter. The central web 55 can enter the U-profile of the facing connecting web 84A or 84B on both sides. It should be noted that space is kept free between the legs of the U-profiles of the connecting webs 84A, 84B and the lever units 52, 54, into which the side plates of the H-profile of the central web 55 can enter.

Fig. 8b shows an enlarged view of the second lever unit 52 from Fig. 8a with the adjusting device 59 provided on the end piece E21. The end piece E21 of the second lever unit 52 partially passes through an opening 585 in the first connecting web 58A, so that the adjusting device 59 is used for actuation is easily accessible.

The adjusting device 59 comprises a bearing block 591 which is mounted in the lever unit 52 so as to be displaceable along its longitudinal axis adjustable. By rotating the adjusting screw 593, the bearing block 591 can therefore be displaced along the longitudinal axis h of the lever unit 52. The articulated shaft 595 determines the position of the axis of rotation, which is why the distance between the axes of rotation of the relevant lever unit 562 is also changed by moving the bearing block 591. In this way, the inclination of the held door or folding sliding door 11 can be set in a simple manner, especially in the critical end position of the assembly profile 85 when the lever mechanism 5 is folded.

9a shows part of one of the lever units 51, 52, 53, 54 with an inserted adjusting device 59 which has the displaceable and adjustable bearing block 591 by which the articulated shaft 595 of the associated lever joint 562 is held.

FIG. 9b shows the adjusting device 59 from FIG. 9a in a longitudinal section. By specifying the reference symbols 51, 52, 53, 54, it is made clear that the adjusting device 59 can be mounted at each end of each lever unit 51, 52, 53, 54. Preferably only one or two adjustment devices 59 are mounted. However, any number of adjustment devices 59 can be mounted. In principle, the joint axes of the lever joints can also be shifted and adjusted against one another in some other way. For example, the lever unit 52 can be designed in two parts and have overlapping elements which can be displaced relative to one another and can be fixed in any desired position. Furthermore, the lever unit 52 can have two parts which are provided with threaded elements and connected to one another by a threaded rod. The distance between the lever axes can also be changed by turning the threaded rod. The use of the present compact and easily accessible adjusting device 59 is particularly advantageous.

The bearing block 591 of the adjusting device 59 has a cross section which is adapted to the inner cross section of the lever unit 52, which has a U-profile with legs and legs facing one another. The bearing block 591 is thereby held in a form-fitting manner and can only be displaced along the longitudinal axis h of the lever unit 52. The adjusting screw 593 is aligned coaxially to the longitudinal axis of the lever unit 52 and engages with the screw shaft in a screw channel 5911 of the bearing block 591 and can move it axially by turning the adjusting screw 593. So that the articulated shaft 595, which is held in a bearing channel 5910, can now be moved with the bearing block 591, corresponding longitudinal openings 95 are provided in the legs of the U-profile-shaped lever unit 52. The longitudinal openings 590 run parallel to the longitudinal axis h of the lever unit 52 and thereby allow the articulated shaft 595 and thus the axis of rotation of the lever joint 562 to be displaced.

The adjusting screw 593 is held by a holding block 592 so that it cannot be moved axially but is rotatable. The holding block 592 is also clamped within the inner cross section of the lever unit 52 by means of a grub screw 594.

9c shows the multi-part cardan shaft 595 from FIG. 9a, which has a cardan shaft screw 5951 and a cardan shaft nut 5952 which, when screwed together, form the cardan shaft 595 on which a joint bushing 5953 is rotatably mounted. The bearing block 591 is held by the joint bushing 5953 and can therefore rotate around the joint shaft 595 with practically no friction. FIG. 10a shows the displacement device 1 with the folded lever mechanism 5 from FIG. 7a, and FIG. 10b shows the displacement device 1 from FIG. 10a without the connecting webs 58A, 58B. The first connecting web 58A is connected to the holding devices 84A, 84B, which are mounted or can be mounted on the side wall or rear wall of the piece of furniture 10 from FIG. 1. The second connecting web 58B is connected to the mounting profile 85 by an adapter 589. The mounting profile 85 is displaceable along the adapter 589 and can be fixed, for example, by a screw.

Reference character list:

1 sliding device

10, 10 'piece of furniture, e.g. cabinet

11 door, especially folding sliding door

111 first door element

112 second door element

113 handle

12 side wall

13 partition

14 door compartment

3 hinges

5 lever mechanism

51 first lever unit

511, 512 lever elements of the first lever unit

Eil, E12 end pieces of the first lever unit

52 second lever unit

521, 522 lever elements of the second lever unit

E21, E22 end pieces of the second lever unit

53 third lever unit

531, 532 lever elements third lever unit

E31, E32 end pieces of the third lever unit 54 fourth lever unit

541, 542 lever elements of the fourth lever unit

E41, E42 end pieces of the fourth lever unit

55 center bar

550 openings for the lever joints 561, 563

551 Guide track in the end piece 559

5510 inlet opening

E51, E52 end pieces of the center bar

561, 562 first and second upper peripheral lever joint 563 upper central lever joint

564, 565 first and second lower peripheral lever hinge

566 lower central lever joint

58A first connecting bridge

581 profile blade

585 window openings in the connecting webs 58A / B

589 adapter

58B second connecting bridge

59 Adjustment device

590 storage windows

591 bearing block

5910 storage channel

5911 screw channel

592 retaining block

593 adjusting screw

594 fixing screw

595 PTO shaft

5951 PTO shaft screw

5952 cardan shaft nut

5953 swivel bush

6 guide drive

7 balancing device

71 first balancing lever

72 second balancing lever 75 sliding joint

81 lower support rail

82 upper support rail

83 guide rail

84 Holding device

84A first holding device

84B second holding device

85 mounting profile

88 support gears in the support rails 81, 82 9 bearing element, bearing roller, sliding bearing

99 Bearing axis for the bearing element

sl, s2, s3 symmetry axes

z Longitudinal axis of the central web 55

Claims

1. Piece of furniture (10) with a one-piece or multi-piece door (11) which is used to close an opening in the piece of furniture (10) and which is connected by hinges (3) to a mounting profile (85) which is inside a door compartment (14) is held displaceably by a displacement device (1) between a first end position and a second end position, which displacement device (1) has a lever mechanism (5), the four lever units (51, 52, 53, 54) rotatable in one plane, a first connecting web (58A) and a second connecting web (58B) and a central web (55), which central web (55) on a first side by a first lever unit (51) and a second lever unit (52), which are spaced apart from one another and aligned parallel to one another , each articulated to the first connecting web (58A), which is connected to at least one holding device (84A, 84B) mounted on the piece of furniture (10), and which central web (55) is connected to a second n side by a third lever unit (53) and a fourth lever unit (54), which are spaced apart from one another and aligned parallel to one another, each articulated to the second connecting web (58B), which is connected to the mounting profile (85), characterized that in the first end position of the mounting profile (85) the lever units (51, 53; 52,

54) are aligned at least approximately parallel to the first and second connecting webs (58A, 58B) and are at least partially sunk into the central web (55), which Central web (55) in this first end position of the mounting profile (85) is at least partially sunk into at least one of the first and second connecting webs (58A, 58B).

2. piece of furniture (10) according to claim 1, characterized in that the mounting profile (85) is guided on the top or the bottom along rails (81, 82) and / or that the door (11) has several door elements (111, 112 ), of which a door element (112) is held by a guide drive (6) which is displaceable along a guide rail (83) which has a first rail part (831) running along a front side of the piece of furniture (10) and one inside the door compartment (14) comprises a second rail part (832), which first and second rail parts (831, 832) are connected to one another by a rail curve (833).

3. piece of furniture (10) according to claim 1 or 2, characterized in that at least one of the four lever units (51, 52, 53, 54) has two plate-shaped

Lever elements (511, 512; 521, 522; 531, 532; 541, 542) which are arranged at a distance from one another and are releasably connected to one another or are firmly connected to one another as legs of a U-profile.

4. Piece of furniture (10) according to one of claims 1, 2 or 3, characterized in that the central web (55) has an L-profile, or a U-profile or an H-profile in cross section.

5. piece of furniture (10) according to any one of claims 1-4, characterized in that a) the first and second lever units (51, 52) can be at least partially screwed into the central web (55), or b) that the third and fourth lever units (53, 54) can at least partially be screwed into the central web (55), or c) that all lever units (51, 52, 53, 54) can at least partially be screwed into the central web (55).

6. piece of furniture (10) according to any one of claims 1-5, characterized in that the first connecting web (58A) has an L-profile or a U-profile, or that the second connecting web (58B) has an L-profile or a U. -Profile or that the first and the second connecting web (58A, 58B) have an L-profile or a U-profile.

7. piece of furniture (10) according to any one of claims 1-6, characterized in that a) that the first and the second lever unit (51, 52) are at least partially rotatable into the first connecting web (58A), or b) that the third and the fourth lever unit (53, 54) can be at least partially screwed into the second connecting web (58A, 58B), or c) that the first and second lever units (51, 52) can at least partially be screwed into the first connecting web (58A) and that the third and fourth lever units (53, 54) can be rotated at least partially into the second connecting web (58A, 58B).

8. piece of furniture (10) according to any one of claims 1-7, characterized in that a) that the central web (55) is at least partially insertable into the first connecting web (58A), or b) that the central web (55) at least partially into the second connecting web (58B) can be pushed in, or c) the central web (55) can be pushed at least partially into the first and second connecting webs (58A, 58B).

9. piece of furniture (10) according to any one of claims 1-8, characterized in that the first connecting web (58A) can be pushed into the second connecting web (58B) or that the second connecting web (58B) can be pushed into the first connecting web (58A) .

10. piece of furniture (10) according to any one of claims 1 - 9, characterized in that in the area of the door compartment (14) at least one bearing element (9), such as a roller or a sliding element, is provided on which the door (11) is supported or can be supported.

11. piece of furniture (10) according to any one of claims 1 - 10, characterized in that the first and the second lever unit (51, 52) by lever joints (561, 565; 562,

566) are connected on the one hand to the first connecting web (58A) and on the other hand to the central web (55) and that the third and fourth lever units (53, 54) are connected to the one hand by lever joints (561, 565; 562, 566) second connecting web (58B) and on the other hand are each connected to the central web (55).

12. piece of furniture (10) according to claim 11, characterized in that the distance between the lever joints (561, 565; 562, 566;

563, 565; 564, 566) and thus the distance between the associated axes of rotation of at least one of the lever units (51, 52,

53, 54) is adjustable or that the distance between the

Lever joints (563, 565; 564, 566) and thus the distance between the associated axes of rotation of the third and fourth lever units (53, 54) is adjustable.

13. piece of furniture (10) according to claim 11 or 12, characterized in that at least one of the lever units (51, 52, 53, 54) with at least one adjusting device

(59) is provided, by means of which the distance between two mutually corresponding lever joints (561, 565;

562, 566; 563, 565; 564, 566) of the relevant

Lever unit (51; 52; 53; 54) is adjustable.

14. piece of furniture (10) according to claim 13, characterized in that the adjusting device (59) comprises a bearing block (591) which is mounted in the associated lever unit (51, 52, 53, 54) displaceably along its longitudinal axis and which is rotatable and axially The adjusting screw (593) held in a non-displaceable manner is adjustable and which holds a cardan shaft (595) of the associated lever joint (561, 565; 562, 566; 563, 565; 564, 566).

15. Piece of furniture (10) according to one of claims 1 - 14, characterized in that the first lever unit (51) with a first balancing lever (71) and the third lever unit (53) with a second balancing lever (72) of a balancing device (7) is articulated and that the first and second balancing levers (71, 72) are articulated at the ends facing each other with a sliding hinge (75), which is axially along the center web (55) in a guide track (551) Central web (55) is slidably mounted or the second lever unit (52) is articulated to the first balancing lever (71) and the fourth lever unit (54) is articulated to the second balancing lever (72) and that the first and second balancing lever (71, 72) are articulated at the ends facing each other with a sliding hinge (75) which is mounted in a guide track (551) of the central web (55) axially along the central web (55).