Furniture or household appliances

The furniture or household appliance with a guide bearing and height adjustment device using a rotating cylinder and planetary gear addresses the need for precise height adjustment in translational and rotational movement mechanisms, ensuring accurate positioning and tolerance compensation.

JP2025536441APending Publication Date: 2025-11-05PAUL HETTICH GMBH & CO KG
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Patent Information

Application Number
JP2025526511
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-11-09
Filing Date
2023-11-07
Publication Date
2025-11-05

AI Technical Summary

Technical Problem

Existing furniture and household appliances with translational and rotational movement mechanisms lack a simple and precise method for adjusting the vertical distance between components, leading to manufacturing tolerances and positioning inaccuracies.

Method used

A furniture or household appliance with a support and body that allows translational and rotational movement, featuring a guide bearing with a guide cam track and a height adjustment device incorporating a rotation mechanism, including a rotating cylinder and planetary gear for precise height adjustment.

Benefits of technology

Enables easy and precise adjustment of the height of components, ensuring accurate positioning and compensating for manufacturing tolerances without inadvertent changes, using low adjusting forces and constrained adjustments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The furniture or household appliance comprises a support having a base support plate, an upper support plate, and side walls, and a main body having the base plate and side walls and mounted so as to simultaneously move in translation and rotation relative to the support, a guide bearing arranged between the base support plates, the guide bearing having a guide cam track and a guide element guided by the guide cam track, which are arranged on mutually opposing surfaces of the base support plate and the base plate, the guide bearing further comprising a linear guide having a first rail and a second rail displaceable in a translational direction relative to the first rail, the first rail and the second rail being arranged on mutually opposing surfaces of the base support plate and the base plate via a pivot bearing, and the guide bearing has a height adjustment device, which is variably adjustable perpendicular to the surface of the base support plate and has a rotation mechanism.
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Description

[Technical Field]

[0001] The invention relates to a piece of furniture or household appliance according to the preamble of claim 1 . [Background technology]

[0002] Such furniture or household appliances, for example shelves or racks, whose bodies are mounted on supports so as to be capable of simultaneous rotational and translational movement, are known, for example, from DE 10 2019 132 207 A1.

[0003] For the translational and rotational movement of the body, guide bearings are arranged here, in particular, in which the translational and rotational movement is guided.

[0004] In particular, when positioning an upper support plate that covers both the fixed support and the translatable body part, it is desirable to accurately define the vertical distance between the base support plate of the support and the base plate of the body part so that the desired distance between the components of the furniture or household appliance can be accurately defined or manufacturing tolerances can be compensated for. Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE INVENTION It is an object of the present invention to provide a piece of furniture or household appliance which allows in a simple manner height adjustment of a translationally and rotationally movable body part. [Means for solving the problem]

[0006] This object is solved by a piece of furniture or household appliance having the features of claim 1.

[0007] The furniture or household appliance according to the present invention comprises a support having a base support plate, an upper support plate, and at least one side wall, and further comprises a body having the base plate and at least one side wall, the body being translatably and rotatably mounted relative to the support.

[0008] A guide bearing is disposed between the base support plate and the base plate to allow simultaneous translational and rotational movement of the body portion relative to the support. The guide bearing has at least one guide cam track and a guide element guided in or on the guide cam track, which are arranged on a surface facing the base support plate and the base plate.

[0009] The guide bearing also includes a linear guide having at least one first rail and at least one second rail that is translationally displaceable relative to the first rail. The at least one first rail and the at least one second rail are arranged on surfaces that face the base support plate and the base plate via pivot bearings. The guide bearing has a height adjustment device with a rotation mechanism that allows variably adjustment perpendicular to the surface of the base support plate.

[0010] By providing a height adjustment device, the height of the guide bearing can be increased or decreased in a simple manner, and thus the height of, for example, a panel of furniture or household appliances relative to an adjacent support can be precisely adjusted. Advantageous embodiments of the invention are the subject matter of the dependent claims.

[0011] According to an advantageous embodiment of the invention, the rotation mechanism comprises a rotation cylinder with an external thread which meshes with an internal thread of a further component of the height adjustment device. Such height adjustment by screw adjustment can be achieved in a very simple manner by turning the rotary cylinder.

[0012] In a preferred embodiment, the component having the internal threads is mounted on a pivot bearing. According to a preferred further development, the height adjustment device has a flange attached to the guide bearing, the base support plate or the base plate, in which flange is accommodated a planetary gear with an adjustment gear and at least one planetary gear wheel, which planetary gear wheel meshes with the rotating cylinder.

[0013] The provision of such a planetary gear for adjusting the rotating cylinder makes it possible to use very low adjusting forces due to the gear reduction of the planetary gear. At the same time, the use of such planetary gears ensures that the height adjustment is sufficiently constrained so that it is not changed inadvertently or by weight alone. According to a further embodiment, the component mounted on the pivot bearing with internal thread is configured or arranged as a fixed housing on the guide cam track.

[0014] According to a first embodiment, the housing is formed integrally with the guide cam track. The one-piece construction of the housing with the guide cam track provides the advantage of ease of installation. According to an alternative embodiment, the component having the internal threads is mounted within the housing as a separate component.

[0015] In an alternative preferred embodiment, the height adjustment device comprises a housing having an internal thread in which a rotating cylinder in the form of an adjustment wheel having an external thread is rotatably accommodated. The use of this type of threaded connection also makes it easy to precisely adjust the height. The housing and the rotary cylinder are preferably supported on the one hand by the base support plate or on opposing surfaces of the base plate, and on the other hand by guide bearings.

[0016] In order to ensure increased protection against torsion, the height adjustment device comprises a support disk with a web receiving portion extending radially relative to the rotation axis of the rotating cylinder, into which support disk the web of the housing extends radially relative to the rotation axis of the rotating cylinder.

[0017] The web and web holder fix the support disk and the female-threaded housing against rotation, as they do not rotate relative to each other, but only move vertically relative to each other. The support disk is preferably attached to the surface of the base support plate, the base plate or the guide bearing on which the rotating cylinder is supported. The rotating cylinder and support disc are preferably mounted on pivot bearings.

[0018] In both of the above configuration variations, the female and male threads are preferably configured as trapezoidal threads, which allows height adjustment to be achieved with a smaller adjustment angle than with standard threads.

[0019] According to yet another alternative embodiment, the height adjustment device comprises a plate with several annularly arranged inclined portions, on which an opposing plate with several annularly arranged inclined portions is placed, whereby the plate and the opposing plate are supported on one side on opposing surfaces of the base support plate or base plate, and on the other side on a guide bearing. Furthermore, by arranging the inclined portions in this manner, the height of the main body can be adjusted simply by rotating one of the plates or the opposing plate.

[0020] Preferably, the plate contacts the pivot bearing and the opposing plate contacts the base support plate or base plate. In order to adjust the height of the main body when installing it, according to a preferred embodiment, a flange, a rotating cylinder configured as an adjustment wheel, or an opposing plate is configured with a tool recess aligned with an opening in the base plate of the main body.

[0021] According to a further preferred embodiment, the rotation mechanism of the height adjustment device has end stops for determining the minimum and maximum positions of the height adjustment. [Brief explanation of the drawings]

[0022] The preferred embodiments are described in more detail below with reference to the accompanying drawings. [Figure 1] 1 shows a schematic perspective view of a piece of furniture having a first support that cannot move translationally and rotationally in a closed position and a body part that can move translationally and rotationally. [Figure 2] 2 shows a piece of furniture corresponding to FIG. 1, with the moving body moved from the closed position to the open position. [Figure 3] 1 shows a detailed view of the base area of ​​the furniture with the body portion lowered. [Figure 4] A view corresponding to FIG. 3 is shown with the main body part raised. [Figure 5] 1 shows a schematic perspective view of a base support plate of a support body before the body is assembled with the height adjustment device of the first embodiment, the height adjustment device being disposed on a guide bearing attached to the base support plate. [Figure 6] 1 shows an individual perspective view of a guide bearing with a height adjustment device of the first embodiment, in which a lowered height adjustment device is arranged on the guide bearing. [Figure 7] 6, with the height adjustment device raised. [Figure 8] 8 shows an exploded perspective view of a first embodiment of the height adjustment device shown in FIGS. 5 to 7. FIG. [Figure 9] 10 shows an exploded perspective view of a height adjustment device of a second configuration variant arranged on a guide bearing; [Figure 10]FIG. 10 is a perspective view of the height adjustment device shown in FIG. [Figure 11] 10 shows an isometric view of a further configuration variant of the height adjustment device, arranged on a guide bearing; [Figure 12] 12 shows a partial exploded view of the height adjustment device and guide bearing shown in FIG. 11. DETAILED DESCRIPTION OF THE INVENTION

[0023] In the following description of the figures, the terms top, bottom, left, right, front, back, etc. refer exclusively to exemplary representations and positions of selected furniture or household appliances, supports, bodies, guide bearings, height adjustment devices, etc. in the respective figures. These terms should not be understood in a limiting manner, i.e., their references may vary with different operating positions or mirror-symmetric configurations, etc.

[0024] In figures 1 to 4, the number 1 is used to indicate a general embodiment of a piece of furniture or household appliance according to the invention. The furniture or household appliance 1, shown here as a piece of furniture, has a support 2 and a body 3 capable of simultaneous translational and rotational movements.

[0025] In the following, the furniture or household appliance 1 will, for ease of reading, be simply referred to as furniture 1. Corresponding household appliances, in particular refrigerators or freezers or wine coolers, can be constructed in the same way as the furniture or household appliance 1 shown as furniture.

[0026] The support 2 has at least one base support plate 21 and one upper support plate 22 and at least one side wall 23 connected to the base support plate 21 and the upper support plate 22. The front of the support 2 is closed here, for example, by a swing door 24. The main body 3 has at least one base plate 31 and at least one side wall 33 connected to the base plate 31, and in the embodiment, two side walls 33 are shown.

[0027] The interior of the main body 3 is here, by way of example, subdivided into a plurality of compartments arranged one above the other by a plurality of shelves 34 and support webs 35 fixed to the side walls 33 . The length of the base support plate 21 of the support body 2 extends over the entire surface of the furniture 1. The same is true for the upper support plate 22, which covers both the top end of the support body 2 and the top end of the body 3, as shown in Figures 1 and 2.

[0028] As an example, as shown in FIG. 5, a guide bearing 4 is disposed between the base support plate 21 and the base plate 31 . As shown in Figures 5 to 9, 11 and 12, the guide bearing 4 has a linear guide 6, which includes a guide rail 61 attached to the base support plate 21 via a connecting plate 63, and a running rail 62 which is movable in the translational direction A relative to the guide rail 61 and has a pivot bearing 64 attached thereto.

[0029] In addition, the guide bearing 4 is variably adjustable perpendicular to the surface of the base support plate 21 and has height adjustment devices 7, 8, and 9 with rotation mechanisms, and the height z of the main body 3 can be adjusted using the height adjustment devices, as shown as an example in Figures 3 and 4. In the different embodiments shown in FIGS. 7 to 11, the height adjustment devices 7 , 8 , 9 are always arranged on pivot bearings 64 .

[0030] It is also conceivable, for example, to arrange the height adjustment devices 7 , 8 , 9 directly below the base plate 31 , the pivot bearing 64 , or directly above the base support plate 21 . Furthermore, the guide bearing 4 has a guide cam track 5 and a guide element 11 guided in or on the guide cam track 5, which are arranged on opposite surfaces of the base support plate 21 and the base plate 31.

[0031] In the embodiment shown here, the guide cam track 5 is arranged on a base plate 31 , while the guide element 11 is attached to a connecting plate 63 of the linear guide 6 . A first embodiment of the height adjustment device 7 will now be described with reference to FIGS. Moreover, the height adjustment device 7 according to the first embodiment has a flange 71 that can be attached to the base plate 31.

[0032] As shown in FIG. 8, the flange 71 houses a planetary gear 72 comprising an adjusting gear 721 and at least one planetary gear wheel 722, in the embodiment shown four planetary gear wheels 722, which mesh with the rotating cylinder 73. For this purpose, the rotating cylinder 73 is formed with internal teeth 732, which have teeth extending in the vertical direction z, and when the adjusting gear 721 rotates, the rotational motion is transmitted to the planetary gear wheel 722, and from there to the rotating cylinder 73.

[0033] The rotating cylinder 73 is screwed into a component mounted on a pivot bearing 64 provided with an internal thread 75, so that the vertical height z of the flange 71 relative to the guide cam track 5 can be varied by rotating the rotating cylinder 73 as shown in Figures 6 and 7. It is also conceivable that the internal thread 75 may be attached or formed in other components of the height adjustment device 7 .

[0034] In the preferred embodiment shown here, the component attached to the pivot bearing 64 is a housing 76 that is located in a fixed position on the guide cam track 5 and is preferably formed integrally with the guide cam track 5. Furthermore, the housing 76 has side walls 761 that serve to vertically guide the flange 71. To this end, as shown in particular in Figure 8, the flange 71 has, in addition to a base 712, a side wall 711 that extends perpendicularly from the base 712 and that rests against the inside of the side wall 761 of the housing 76.

[0035] It is also conceivable that the internal thread 75 is fastened into the housing 76 as a separate component. As further shown in FIGS. 5-8, the flange 71 has several holes 714 that can be used to pass fastening screws, allowing the flange 71 to be fastened to the underside of the base plate 31.

[0036] A tool holder 723 is provided in the center of the adjustment gear 721, which is aligned with the opening 311 in the base plate 31 shown in Figures 3 and 4, thus allowing easy access to the height adjustment device 7 with a rotary tool, for example a polygonal wrench. This allows a polygonal recess to be formed in the adjustment gear 721 through the opening 311 of the base plate 31 and the opening of the flange 71, and its rotation causes the height adjustment of the main body 3.

[0037] As further shown in FIG. 8, the planetary gear wheel 722 is preferably secured to a cover 74 which may be secured to the rotating cylinder 73, thereby allowing the planetary gear wheel 722 to rotate about a vertical axis of rotation. In an alternative embodiment of the height adjustment device 8 shown in Figures 9 and 10, the height adjustment device 8 has a housing 81 having an internal thread 812 in which a rotating cylinder 83 in the form of an adjustment wheel having an external thread 832 is rotatably received.

[0038] In the illustrated embodiment, the female threads 812 are disposed within the ring plate 811 , in which case the ring plate 811 can contact and securely fasten to the underside of the base plate 31 . A rotary cylinder 83 in the form of a setting wheel with an external thread 832 and a tool holder 831 is rotatably received in this internal thread 812 . The rotary cylinder 83 is supported by a pivot bearing 64 .

[0039] To ensure that the housing 81 is securely fixed against rotation, the height adjustment device 8 also has a support disk 82 with a web receiving portion 823 extending radially relative to the axis of rotation of the rotating cylinder 83, into which protrudes a web 813 of the housing 81 extending radially relative to the axis of rotation of the rotating cylinder. The support disk 82 and the rotating cylinder 83 are mounted on pivot bearings 64 in the illustrated embodiment.

[0040] The web 813 is preferably formed on the underside of the housing 81 facing the support disk 82 . In the embodiment shown in Figures 5-8 and 9 and 10, the external threads 731 and 832 and the internal threads 75 and 812 are preferably configured as trapezoidal threads.

[0041] 11 and 12 show further alternative configuration variations of such height adjustment device 9. FIG. The height adjustment device 9 shown in these figures has a plate 92 with a plurality of annularly arranged inclined portions 922, on which an opposing plate 91 with a plurality of annularly arranged inclined portions 914 is placed, and one of the plate 92 and the opposing plate 91 is supported on the opposing surface of the base support plate 21 or the base plate 31, and the other is supported on the surface of the guide bearing 4.

[0042] In the illustrated embodiment, the plate 92 is attached to the pivot bearing 64. The inclined portion 922 is formed in a region 921 facing the base plate 31. The inclined portion 922 is provided with an inclined surface. Therefore, the opposing plate 91 resting on the plate 92 can be attached to the base plate 31 . The opposing plate 91 is formed with a plurality of annular inclined portions 914 , each of which has an inclined surface formed on the surface facing the plate 92 .

[0043] In the preferred embodiment shown here, the opposing plate 91 has a central area 912 with a tool holder 911, in particular in the form of a polygonal recess. A number of wings 913 extend radially outward from this central region 912. Ramp portions 914 are formed on these wings 913, and by inserting a tool into the tool holder 911, the opposing plate 91 rotates, thus increasing or decreasing the distance between the central region 912 of the opposing plate 91 and the plate 92, thereby enabling the height of the main body 3 to be adjusted.

[0044] A common feature of all height adjustment devices 7, 8 and 9 is that the minimum and maximum height adjustment positions are ensured by fixed end stops. In these configuration examples, the height adjustment devices (6, 7, 8) are arranged in the lower region between the main body 3 and the support 2. Of course, it is also possible to additionally or alternatively provide height adjustment devices in the upper region between the support 2 and the main body 3. The upper height adjustment device can be configured as described in the example embodiments or differently. [Explanation of symbols]

[0045] Code list 1. Furniture or household appliances 2 Support 21 Base support plate 22 Upper support plate 23 Side wall 24 Swinging Door 3 Main body 31 Base Plate 311 Opening 33 Side wall 34 Shelves 35 Support Web 4 guide bearings 5 Guide cam track 6 Linear guide 61 Guide rail 62 Running rail 63 Connecting plate 64 Pivot bearing 7 Height adjustment device 71 Flange 711 Side wall 712 base 714 hole 72 Planetary gear 721 Adjusting gear 722 Planetary Gear Wheel 723 Tool Holder 73 Rotating Cylinder 731 Male thread 732 Inner teeth 74 Cover 75 female thread 76 Housing 761 Side wall 8 Height adjustment device 81 Housing 811 Ring Plate 812 Internal thread 813 Web 82 Support disc 821 Ring Plate 823 Web receiving part 83 Rotating Cylinder 831 Tool holder 832 Male thread 9 Height adjustment device 91 Opposing Plates 911 Tool Holder 912 Central area 913 Wing 914 Slope 92 Plates 921 area 922 Slope 11 Guide Elements A translation direction x direction y direction z direction

Claims

1. Furniture or household appliances (1), a support (2) having a base support plate (21), an upper support plate (22), and at least one side wall (23); a body portion (3) having a base plate (31) and at least one side wall (33), and attached to the support (2) so as to be capable of simultaneous translational and rotational movement; A guide bearing (4) is disposed between the base support plate (21) and the base plate (31), The guide bearing (4) has at least one guide cam track (5) and a guide element (11) guided in or on the guide cam track (5), which are arranged on the surfaces facing the base support plate (21) and the base plate (31); The guide bearing (4) further comprises a linear guide (6) having at least one first rail (61) and at least one second rail (62) displaceable in a translation direction (A) relative to the first rail (61); The at least one first rail (61) and the at least one second rail (62) are arranged on mutually opposing surfaces of the base support plate (21) and the base plate (31) via pivot bearings (64). The furniture or household appliance (1) is characterized in that the guide bearing (4) has a height adjustment device (7, 8, 9) which is variably adjustable perpendicular to the plane of the base support plate (21) and has a rotation mechanism.

2. 2. The furniture or household appliance (1) according to claim 1, wherein the rotation mechanism comprises a rotating cylinder (73) with an external thread (731) which meshes with an internal thread (75) of another component of the height adjustment device (7).

3. 3. Furniture or household appliance (1) according to claim 2, wherein the component having the internal thread (75) is fixed to the pivot bearing (64).

4. 4. The furniture or household appliance (1) according to claim 2 or 3, wherein the height adjustment device (7) has a flange (71) fixed to the guide bearing (4), the base support plate (21) or the base plate (31), and a planetary gear (72) having at least one planetary gear wheel (722) meshing with an adjusting gear (721) and a rotating cylinder (73) is accommodated in the flange.

5. 5. Furniture or household appliance (1) according to any one of claims 2 to 4, wherein the component with the internal thread (75) is constructed or arranged as a housing (76) arranged stationary on the guide cam track (5).

6. 6. Furniture or household appliance (1) according to claim 5, wherein a housing (76) having an internal thread (75) is formed integrally with the guide cam track (5).

7. 6. Furniture or household appliance (1) according to any one of claims 2 to 5, wherein the component having the internal thread (75) is fixed to the housing (76) as a separate component.

8. 2. Furniture or household appliance (1) according to claim 1, wherein the height adjustment device (8) has a housing (81) with an internal thread (812) in which a rotating cylinder (83) in the form of an adjustment wheel with an external thread (832) is rotatably accommodated.

9. 9. Furniture or household appliance (1) according to claim 8, wherein the housing (81) and the rotating cylinder (83) are supported on mutually opposing surfaces of the base support plate (21) or the base plate (31), on the one hand, and on the guide bearing (4) on the other hand.

10. 10. Furniture or household appliance (1) according to claim 8 or 9, wherein the height adjustment device (8) comprises a support disk (82) having a web receiving portion (823) extending radially relative to the rotation axis of the rotating cylinder (83), and a web (813) of the housing (81) extending radially relative to the rotation axis of the rotating cylinder (83) protrudes into the support disk (82).

11. 11. Furniture or household appliance (1) according to claim 10, wherein the support disc (82) is fixed to the surface of the base support plate (21), the base plate (31) or the guide bearing (4) on which the rotating cylinder (83) is supported.

12. 9. Furniture or household appliance (1) according to claim 8, wherein the rotating cylinder (83) and the support disc (82) are fixed to a pivot bearing (64).

13. 13. Furniture or household appliance (1) according to any one of claims 2 to 12, wherein the internal thread (75, 812) and the external thread (731, 832) are configured as trapezoidal threads.

14. 2. The furniture or household appliance (1) according to claim 1, wherein the height adjustment device (9) comprises a plate (92) having a plurality of annularly arranged inclined portions (922), on which an opposing plate (91) having a plurality of annularly arranged inclined portions (914) is placed, the plate (92) and the opposing plate (91) being supported on mutually opposing surfaces of the base support plate (21) or the base plate (31) on the one hand, and supported on a guide bearing (4) on the other hand.

15. 2. The furniture or household appliance (1) according to claim 1, wherein a plate (92) abuts against the pivot bearing (64), and a plate (91) opposite the plate (92) abuts against the base support plate (21) or the base plate (31).

16. 16. Furniture or household appliance (1) according to any one of claims 1 to 15, wherein the adjusting gear wheel (721), the rotating cylinder (83) configured as an adjusting gear or the opposing plate (91) has a tool holder (723, 831, 911) aligned with the opening (311) in the base plate (31).

17. 2. Furniture or household appliance (1) according to claim 1, wherein the rotation mechanism has end stops for fixing the minimum and maximum height adjustment positions of the height adjustment devices (7, 8, 9).