Furniture element

The guide bearing between cover plates in furniture elements addresses stability issues by providing stable lateral guidance for translational-rotational movements, enhancing stability and ease of access in larger furniture designs.

EP4280912B1Active Publication Date: 2026-05-20PAUL HETTICH GMBH & CO KG
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
PAUL HETTICH GMBH & CO KG
Filing Date
2022-01-21
Publication Date
2026-05-20

AI Technical Summary

Technical Problem

Existing furniture elements with translational-rotational movements face stability issues due to larger tolerances and insufficient stiffness, leading to insecure guidance of rolling elements in bearing grooves, particularly in larger and taller designs like wall cabinets.

Method used

A guide bearing is positioned between the cover plates of the outer and inner bodies, featuring a curved guide track and a linear guide with connecting parts, providing stable lateral guidance for the inner body's translational-rotational movement, enhanced by a linear rolling bearing with rolling elements and a pivot bearing.

Benefits of technology

This configuration ensures high stability in both vertical and horizontal directions, allowing smooth and secure translational-rotational movements while minimizing installation height and ensuring easy access to stored items.

✦ Generated by Eureka AI based on patent content.

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Abstract

A furniture element which has an outer structure and an inner structure, which is mounted such that it can be moved relative to the outer structure by means of a translatory / rotary bearing (20) comprising two plates containing raceways, in which rolling bodies are guided, each structure having a bottom panel and a top panel as well as at least one side wall (1), which connects the bottom panel (2, 5) and the top panel (4, 6) to one another, is realized by the following features: there is arranged between the top panel (4) of the outer structure and the top panel (6) of the inner structure, and / or between the bottom panel (2) of the outer structure and the bottom panel (5) of the inner structure, a guide bearing having at least one curved guide path (8), which is provided in one of the top panels (4, 6) and / or bottom panels (2, 5), and having a guide element (18), which is guided in the guide path (8) and is arranged on the other top panel (4, 6) and / or bottom panel (2, 5), and the guide bearing also has a linear guide (9), which has connection parts which can be displaced relative to one another and of which one is arranged on the one top panel (4) and the other is mounted on the other top panel (6), and / or the one connection part is arranged on the one bottom panel (2) and the other is mounted on the other bottom panel (5), and the translatory / rotary bearing (20) is positioned between the bottom panels (2, 5) when the guide bearing is arranged between the top panels (4, 6), and is positioned between the top panels (4, 6) when the guide bearing is arranged between the bottom panels (2, 5).
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Description

[0001] The present invention relates to a furniture element according to the preamble of claim 1.

[0002] Furniture elements such as shelves or racks, in which an inner body or a support plate is arranged to be rotatably and translationally movable on or in an outer body, are known, for example, from DE 10 2017 106 170 A1, DE 93 00 364 U1 and the unrelated JP H 10318669 A and US 4 124 262 A.

[0003] In the design known from DE 10 2017 106 170 A1, such a translational-rotational movement is achieved by means of a translational-rotational bearing, which has two plates with molded-on raceways in which rolling elements are guided. The raceways are designed in such a way that they allow a rotational movement of one plate relative to the second plate by a predetermined angle.

[0004] For the translational movement of the plates relative to each other, a slot is provided in one of the plates, in which a guide pin of the other plate is guided.

[0005] Shelving often requires protecting stored items from dirt while ensuring easy access to them. Particularly with larger and / or taller furniture elements, such as wall cabinets or similar pieces, it is necessary for stability reasons to adequately support the pivoting movement of the inner frame in the area of ​​the furniture's top panels.

[0006] However, the installation of an additional translational rotary bearing in the area of ​​these cover plates is made difficult primarily by larger tolerances and insufficient stiffness of the individual components of the furniture element, so that when using such an additional translational rotary bearing there is a possibility that the rolling bearing elements installed in it can no longer be guided securely in the bearing grooves provided for this purpose.

[0007] In DE 93 00 364 U1, a first bearing is provided in the bottom area and an identical second bearing in the ceiling area, in which a linear guide attached to the bottom or ceiling of the outer body is attached to the cabinet extension via a rotary bearing and, to guide a rotational movement, a guide element is attached to the edge of the cabinet extension, which is guided in an arc-shaped guide slot arranged on the bottom or ceiling of the outer body.

[0008] The invention is based on the objective of further developing a furniture element of the generic type in such a way that the stability of the furniture element is increased, particularly when the inner body is pivoted.

[0009] This problem is solved by a furniture element having the features of claim 1.

[0010] According to the invention, as an alternative arrangement, a guide bearing is provided between the cover plate of the outer body and the cover plate of the inner body. This guide bearing has at least one curved guide track arranged on one of the cover plates and a guide element arranged on the other cover plate and guided in the guide track. Furthermore, the invention provides that the guide bearing has a linear guide with connecting parts that are displaceable relative to each other, one of which is arranged on one cover plate and the other of which is mounted on the other cover plate.

[0011] By arranging the guide bearing between the cover plate of the outer body and the cover plate of the inner body, sufficient lateral guidance of the inner body is achieved in the stationary outer body, which supports the translational-rotational movement of the inner body, with the linear guide achieving high stability in both vertical and horizontal directions.

[0012] Alternatively or additionally, such a guide bearing can also be positioned between the base plates. This means that instead of a torsion-rotation bearing, a guide bearing can be arranged between the top and bottom plates. However, it is also conceivable to arrange a torsion-rotation bearing between the top plates, while the guide bearing is located between the base plates. Likewise, the torsion-rotation bearing can be positioned between the base plates and the guide bearing between the top plates.

[0013] Further advantageous embodiments of the invention are characterized in the dependent claims.

[0014] According to a further aspect of the invention, a support plate is attached to a connecting part of the linear guide, which is part of the associated cover plate, preferably of the outer body, and the support plate is expediently screwed to it.

[0015] Furthermore, the design of the linear guide as at least one known extension guide proves to be particularly advantageous, comprising a guide rail fixed to the support plate and forming a connecting part, and a running rail arranged on the cover plate of the inner body and movable relative to it. The extension guide can, in a known manner, incorporate rolling elements in the form of balls, rollers, or barrels, which are preferably arranged in rolling element cages.

[0016] Preferably, two parallel and spaced-apart drawer slides are provided, the guide rails of which are connected to each other by a bearing element. This bearing element serves as a pivot bearing for the inner body or its top panel, while the support plate, as mentioned, is connected to the top panel of the outer body.

[0017] To minimize the installation height between the two cover plates, the linear guide is positioned in a recess in the cover plate.

[0018] The linear guide, especially in the design described above, leads to a significantly improved stability in the connection between the outer and inner bodies, primarily because the cover plate of the inner body, to which the guide rail is attached via the pivot bearing, is essentially positively connected to the cover plate of the outer body that supports the guide rail, while simultaneously allowing axial displacement.

[0019] According to another embodiment, the curved guide track, which is preferably provided in the cover plate of the inner body, while the engaging guide element is positioned on the side facing the cover plate of the outer body, is suitable to support the movement of the inner body made possible by the translational rotation bearing.

[0020] The guide track is designed as a groove that extends approximately diagonally across the plane, its length limited, and follows an arc shape. The groove can be closed or open at its ends.

[0021] Such a groove can be easily and inexpensively incorporated into the corresponding cover plate.

[0022] The engaging guide element, for example a guide pin, can be designed as a pin, bolt, or wheel, whereby a pin or bolt can slide in the guide track. In any case, the translational-rotational movement of the inner body relative to the outer body can be executed almost frictionlessly.

[0023] In a preferred embodiment, the guide element has an elastic sheathing, which provides damping in the event of the guide element striking a side edge of the guide track.

[0024] Another advantage of such an elastic casing is that, in combination with a narrow point in the area of ​​the guide track, for example before reaching a predetermined end position, it is easy to slow down the movement of the inner body relative to the outer body.

[0025] According to a further aspect of the invention, the width of the guide track can be variable along its longitudinal extent. In addition to the advantageous use of such a variable guide track width described above, other areas can also be widened to such an extent that such a section of the guide track is particularly free of resistance.

[0026] Furthermore, the guide track can have a specially molded clamping cam in the area of ​​at least one end, which allows a user to haptically confirm that an end position of the inner body has been reached.

[0027] Such haptic locking is also achievable if a clamping cam is provided in a defined intermediate position of the inner body.

[0028] Another variant of the invention provides that the guide element is designed as a pin, bolt, wheel or ball bearing with a solid outer surface, wherein an elastic or spring-loaded clamping cam is arranged in the guide track in the region of at least one end or an intermediate position.

[0029] Furthermore, the inner body can be moved relative to the outer body from a first functional position to a second functional position rotated by a predetermined angle to the starting position, whereby in both functional positions the base plates and the top plates of the inner body and the outer body are aligned with each other in matching geometries.

[0030] This makes it possible, in particular, to adjust the furniture element according to the invention in combination with other furniture elements in different functional positions without the furniture element occupying a different area of ​​the room.

[0031] An embodiment of the invention is described below with reference to the accompanying drawings.

[0032] They show: Figure 1: A furniture element according to the invention in an exploded view. Figures 2-4: A part of the furniture element in different functional positions, each in perspective view. Figure 5: A part of the furniture element, also in an exploded view. Figure 6: A detail of the furniture element in a top view. Figure 7: A section through the detail along line BB. Figure 6 Figure 8, the detail accordingly Figure 6 in a different functional position, also in a top view, Figure 9 shows a section through the detail along line AA. Figure 8Figure 10: Another view of the furniture element, also in an exploded view. Figure 11: Another embodiment of the guide bearing according to the invention in a standalone perspective view. Figure 12: A detail of the guide bearing according to Figure 11 , also in a perspective representation.

[0033] In the following figure descriptions, terms such as top, bottom, left, right, front, back, etc., refer exclusively to the exemplary representation and position of the furniture element, outer body, inner body, top panel, base panel, guide track, guide elements, and the like, as chosen in the respective figures. These terms are not to be understood as restrictive; that is, these relationships may change due to different working positions, mirror-symmetrical design, or similar factors.

[0034] In the Figure 1The figure shows a furniture element comprising an outer body and an inner body movably mounted therein, designed as a shelf with corner-lying side walls 1, 3 and shelves 7.

[0035] The inner body is closed off on the top side by a cover plate 6 and on the bottom side by a base plate 5.

[0036] In principle, the outer body also has side walls, but in the example only a base plate 2 and a top plate 4 of the outer body are shown.

[0037] A translational-rotational bearing is arranged between the cover plates 4, 6, by means of which the inner body can be moved relative to the outer body.

[0038] This translational-rotational bearing consists of a curved guide track 8, as is found particularly in the Figure 5as can be clearly seen, as well as a linear guide 9, which is firmly connected to the cover plate 4 of the outer body, and on the other hand to the cover plate 6 of the inner body, but here is movable relative to the cover plate 4 of the outer body.

[0039] The guide track 8, in which a guide element 18 connected to the carrier plate 10 is guided, has three sections, namely two outer sections 24 with a larger radius and an inner section 23 with a smaller radius connecting these two outer sections 24, wherein the guide track 8 is mirror-symmetric with respect to an axis transverse to its longitudinal extent.

[0040] As part of the cover plate 4 of the outer body, a support plate 10 is attached to the side facing the cover plate 6 of the inner body, preferably by screwing, for which purpose screw holes 17 ( Figure 7 ) are provided in the carrier plate 10.

[0041] The linear guide 9 consists of two extension guides 12, each with a guide rail 13 and a running rail 14. The guide rails 13, which form the connecting parts, are fixedly held on the support plate 10, while the running rails 14, also acting as connecting parts, are rigidly connected to each other by a pivot bearing 15. A pivot pin 16 engages in this bearing and is inserted into a bore 19 in the cover plate 6 of the inner body. The extension guides 12 can be detachably or permanently fixed to the support plate 10 and the cover plate 6 by material connection, positive connection, and / or force connection. Additionally, the extension guides 12 can have functional elements for controlling the movement, for damping, for retraction, and / or extension, thus enabling improved guidance. It can also be advantageous to arrange an additional center rail between the guide rail 13 and the running rail 14.In this embodiment, 12 rolling elements in the form of balls, which can be arranged in rolling element cages, are present within the extension guides.

[0042] In the Figures 2 to 4 Different pivot positions of the inner body relative to the outer body are shown, of which only the base plate 2 is depicted.

[0043] Depending on the pivot position of the inner body, the support plate 10, which, as mentioned, is firmly connected to the cover plate 4 of the outer body, is displaced relative to the inner body, while the inner body is simultaneously rotated, along the guide track 8.

[0044] To allow the inner body to pivot freely relative to the linear guide 9, the cover plate 6 has a recess 11, as can be seen particularly in Figures 6 to 8. The recess 11 also reduces the overall height.

[0045] In the Figure 10Furthermore, a translational-rotational bearing 20 is shown in the area of ​​the base plate 2, wherein a bearing plate 21 with a slot 22 is provided for this purpose, through which a translational movement of the inner body relative to the outer body is possible.

[0046] For the basic structure and function of such a translational rotary bearing, reference is made to DE 10 2017 106 170 A1, in which such a translational rotary bearing 20 is described in detail.

[0047] For mounting the inner body to the outer body, the device according to the invention, consisting of the linear guides and the guide track, can be used both at the top and at the bottom, as well as in combination with a known translational rotary bearing.

[0048] In the Figure 11As a further variant of the guide bearing, the linear guide 9 is shown as a linear rolling bearing 25, with a support strip 28 and a rolling bearing cage 26 which is axially displaceable on it, on which the support plate 10 is mounted in a relatively displaceable manner.

[0049] The connection between the linear rolling bearing 25 and the carrier plate 10 is made by means of the rotary bearing 15, which is designed as a lifting-protection device and is connected to a retaining plate 30, wherein the rotary bearing 15 is guided in a slot 29 of the rolling bearing cage 26, as well as in a longitudinal slot 27 of the carrier plate 10, with the simultaneous possibility of pivoting in accordance with the guide track 8.

[0050] To prevent lifting, the pivot pin 16 of the rotary bearing 15 is provided with a head which lies in a circumferential recess of the longitudinal slot 27 of the support plate 10, but does not protrude. Reference symbol list

[0051] 1 Side wall 2 Base plate 3 Side wall 4 Top plate 5 Base plate 6 Top plate 7 Shelf 8 Guide track 9 Linear guide 10 Support plate 11 Recess 12 Extension guide 13 Guide rail 14 Running rail 15 Swivel bearing 16 Pivot pin 17 Screw hole 18 Guide element 19 Bore 20 Translation rotary bearing 21 Bearing plate 22 Slot 24 Outer section 23 Inner section 25 Linear roller bearing 26 Roller bearing cage 27 Longitudinal slot 30 Retaining plate 28 Support rail 29 Slot

Claims

1. Furniture element, having an outer body and an inner body which is mounted such that it can move relative thereto by means of a translational-rotational bearing (20) having two plates with raceways provided therein in which rolling bodies are guided, which bodies each have a bottom panel and a top panel, and in each case at least one side wall (1) which connects the bottom panel (2, 5) and the top panel (4, 6) to one another, wherein the raceways of the translational-rotational bearing (20) are formed to enable a rotational movement of the one plate relative to the second plate through a predetermined angle, wherein a guide bearing is arranged between the top panel (4) of the outer body and the top panel (6) of the inner body or between the bottom panel (2) of the outer body and the bottom panel (5) of the inner body, having at least one guide path (8) which extends in a curved manner and is provided in one of the top panels (4, 6) and / or the bottom panels (2, 5) and a guide element (18) which is guided in the guide path (8) and is arranged on the other top panel (4, 6) and / or bottom panel (2, 5), the guide bearing further comprises a linear guide (9) with connecting parts displaceable relative to one another, one of which is arranged on the one top panel (4) and the other is mounted on the other top panel (6) and / or one connecting part is arranged on the one bottom panel (2) and the other is mounted on the other bottom panel (5), the translational-rotational bearing (20) is positioned between the bottom panels (2, 5) when the guide bearing is arranged between the top panels (4, 6) and between the top panels (4, 6) when the guide bearing is arranged between the bottom panels (2, 5).

2. Furniture element according to claim 1, characterized in that the linear guide (9) is formed from at least one pull-out guide (12), having a guide rail (13) and a running rail (14) displaceably mounted thereon.

3. Furniture element according to claim 2, characterized in that the pull-out guide (12) has rolling bodies in the form of balls, rollers or barrels.

4. Furniture element according to claim 2 or 3, characterized in that the guide rail (13) is connected to the top panel (4) of the outer body and the running rail (14) is connected to the top panel (6) of the inner body by means of a pivot bearing (15).

5. Furniture element according to one of the preceding claims, characterized in that two pull-out guides (12) are provided which are arranged parallel to and spaced apart from one another and are firmly connected to one another by the pivot bearing (15).

6. Furniture element according to one of the preceding claims, characterized in that a pivot pin (16) connected to the top panel (6) is mounted in the pivot bearing (15).

7. Furniture element according to one of the preceding claims, characterized in that the top panel (4) of the outer body has, on its side facing the top panel (6) of the inner body, a carrier plate (10) to which the at least one pull-out guide (12) is fastened.

8. Furniture element according to one of the preceding claims, characterized in that the guide path (8) is provided in the top panel (6) of the inner body.

9. Furniture element according to one of the preceding claims, characterized in that the guide path (8) extends approximately diagonally across the plane of the top panel (6).

10. Furniture element according to one of the preceding claims, characterized in that the guide element (18) is designed as a pin, bolt, wheel or ball bearing.

11. Furniture element according to one of the preceding claims, characterized in that the inner body can be moved relative to the outer body from a first functional position into a second functional position rotated through a predetermined angle with respect to the starting position, wherein the bottom panels (2, 5) and the top panels (4, 6) of the inner body and of the outer body are aligned in matching geometries with respect to one another in both functional positions.

12. Furniture element according to one of the preceding claims, characterized in that the linear guide (9) is designed as a linear rolling bearing (25).