Guide bearing and furniture element or domestic-appliance element

Abstract

A guide bearing (4) for guiding a basic-structure part (3) which is mounted for simultaneous translatory and rotational movement has a curved guide path (5), which can be fastened on a first panel or is formed in or on this panel, also has at least one guide element (8), which is guided in or on the at least one guide path (5) and can be fastened on a second panel, and additionally has a linear guide (7) with connection parts which can be displaced relative to one another and of which one is arranged on the one of the panels and the other is mounted on the other of the panels by means of a rotary bearing (6), wherein the first panel or the second panel can be fastened on the basic-structure part (3) or is designed in the form of a bottom panel (32) or top panel (31) of the basic structure part (3), wherein the guide element (8) has a rotatably mounted shaft (81), which can be driven on the second panel by a drive unit (9) and has a drive wheel (82), arranged for conjoint rotation with the shaft (91), and a guide wheel (3), mounted rotatably relative to the shaft (81). Also described is a furniture element or domestic appliance element (1).

Description

[0001] Guide bearing and furniture or household appliance element The present invention relates to a guide bearing for guiding a body part mounted for simultaneous translational and rotational movement according to the preamble of claim 1. The invention further relates to a furniture element according to the preamble of claim 10 and a household appliance element according to the preamble of claim 11. A furniture or household appliance element, for example in the form of a shelf or a storage unit, in which a body part is arranged for simultaneous rotational and translational movement on or in a support element, is known, for example, from JP H 10318669 A. With such furniture or household appliance elements, there is often a requirement to protect the objects stored thereon from dirt and to enable good accessibility to the objects. In particular with larger and / or higher body parts, it is necessary for stability reasons toto adequately support the combined translational-rotational movement by means of a guide bearing. Such a guide bearing is known, for example, from DE 102019132207 A1. Such a guide bearing can be arranged both above and below a corresponding body part. The object of the present invention is to further develop a guide bearing and a furniture or household appliance element such that they can be actuated without manual force, while at the same time providing reliable guidance. This object is achieved by a guide bearing with the features of claim 1 and by a furniture element with the features of claim 10. The guide bearing according to the invention for guiding a body part that can be moved both translationally and rotationally has a curved guide track that can be fastened to a first plate or is molded into it or integrally formed thereon. The guide bearing further has at least oneor a guide element guided on the at least one guide track and attachable to a second plate. The guide bearing further comprises a linear guide with connecting parts that can be moved relative to one another, one of which is arranged on one of the plates and the other is mounted on the other of the plates by means of a pivot bearing. The first plate or the second plate can be attached to the body part or is designed as a base plate or cover plate of the body part. The guide element comprises a rotatably mounted shaft that can be driven on the second plate by a drive unit, with a drive wheel arranged in a rotationally fixed manner to the shaft and a guide wheel mounted rotatably relative to the shaft. With a guide element designed in this way, a reliable force can be exerted via the drive wheel. The guide wheel, which is designed separately from the drive wheel, enables precise guidance of the guide element in the guide track.Separating the guide and drive enables an optimized design of the drive wheel and the guide wheel with regard to their respective tasks. Advantageous embodiments of the invention are the subject of the dependent claims. According to an advantageous embodiment, a first surface area of ​​the guideway, against which the drive wheel rests, has a different surface structure than a second surface area of ​​the guideway, against which the guide wheel rests. The formation of different surface structures on or in the guideway also enables optimization of the drive and the guidance on or in the guideway. In a preferred embodiment, the guide wheel has a smooth outer surface, and the second surface area of ​​the guideway is preferably also smooth, which enables the guide element to be guided on or in the guideway with as little friction and as little jerking as possible. The drive wheelAccording to a preferred embodiment, the drive wheel is designed as a gear wheel and the first surface area of ​​the guide track is designed with teeth. This enables the application of even stronger forces to drive the furniture element. In an alternative embodiment, the drive wheel is designed as a friction wheel and the first surface area of ​​the guide track is designed as a friction track, which is also sufficient for driving the body part in the case of smaller or lightweight furniture elements. According to an advantageous embodiment, the first and second surface areas of the guide track are arranged one behind the other in the direction of the axis of rotation of the shaft. The guide track is preferably formed as a U-shaped guide groove with two parallel legs that are connected to one another by a base. The base can be fastened to the first plate. According to a preferred development, the first and second surface areas of the guide track are arranged on a surface that is parallel to the direction of theThe first and second surface areas of the guideway are arranged on an inner surface of a leg of the guideway parallel to the axis of rotation of the shaft. According to an alternative embodiment, it is also conceivable that the first and second surface areas of the guideway are arranged on an outer surface of the guideway parallel to the direction of the axis of rotation of the shaft. The furniture or household appliance element according to the invention has a support element with a base support plate and a cover support plate, as well as a body part mounted so as to be movable both translationally and rotationally relative to the support element, said body part having a base plate, a cover plate, and at least one connecting element connecting the base plate to the cover plate. A guide bearing with a guideway, a linear guide, a pivot bearing, and a guide element is arranged between the cover support plate and the cover plate and / or between the base support plate and the base plate. The guideway and theGuide elements are arranged on mutually facing surfaces of the cover support plate and the cover plate or the base support plate and the base plate. One of the connecting parts of the linear guide is arranged on the cover support plate or the cover plate, and the other of the connecting parts is mounted on the other of the cover support plate or the cover plate by means of a pivot bearing, and / or one connecting part is arranged on the base support plate or the base plate, and the other is mounted on the other of the base support plate or the base plate by means of a pivot bearing. The guide bearing is designed as described above. Household appliance elements according to the invention can be used, for example, in refrigerators and freezers or in wine coolers. Preferred embodiments of the invention are explained in more detail below with reference to the accompanying drawings. They show: Figure 1 shows an embodiment of a furniture element according to the invention with a support element andBody part, with a body part positioned in a starting position corresponding to a closed position, Figure 2 is an isometric view of a piece of furniture with a translationally and rotationally moved furniture element in an intermediate position of the furniture element, Figure 3 is an isometric representation of a guide track integrated into a support plate of a guide bearing, Figure 4 is an enlarged detail of a section of the guide track designated IV in Figure 3 to show details of the guide track, Figure 5 is an isometric representation of the support plate with the guide track integrated therein in a position of the support plate rotated by 180° with the guide element guided in the guide track, Figure 6 is an enlarged detail of the section designated VI in Figure 5, Figure 7 is an isometric representation corresponding to Figure 6 with the guide element lowered from the guide track to show different surface areas of the guide-track, Figure 8 is a representation corresponding to Figure 6 with an additional representation of a drive unit driving the guide element, Figure 9 is an enlarged detail of a section designated IX in Figure 8, Figure 10 is an isometric exploded view of a guide track, the guide element as well as a linear guide with pivot bearing and a drive unit for driving the drive wheel of the guide element, Figure 11 is an isometric representation of the components shown in Figure 10 in the assembled position, Figure 12 is an enlarged detail of the section designated XII in Figure 11, and Figure 13 is a representation corresponding to Figure 8 after the linear displacement has taken place. In the following description of the figures, terms such as top, bottom, left, right, front, back, etc. refer exclusively to the exemplary representation and position of the guide bearing, the guide track, theGuide element, linear guide, pivot bearing, body part, and the like. These terms are not to be understood as limiting, i.e., these references may change due to different working positions or mirror-symmetrical design or the like. In Figures 1 and 2, the reference numeral 1 denotes a total of two different embodiments of a furniture element according to the invention. The furniture elements 1 shown here essentially consist of a support element 2 with a base support plate 22 and a cover support plate 21, as well as side walls 23 connecting the base support plate 22 to the cover support plate 21, and a body part 3 that is simultaneously translationally and rotationally movable relative to the support element 2 in rotational directions R1, R2. Instead of the side wall 23 connecting the base support plate 22 to the cover support plate 21, a design variant of the support element 2 without a side wall 23 is also conceivable, for example when fasteningthe floor support plate 22 and the cover support plate 21 on a building wall. The body part 3 also has a floor plate 32, a cover plate 31 and a connecting element connecting the floor plate 32 to the cover plate 31, in the illustrated embodiment in the form of at least one side wall 33. In the embodiment variant shown in these figures, the body part 3 has a square base area, with two side walls 33 that close off an interior space in a closed position shown in Figure 1 and two open vertical sides, shown in Figure 2, which allow access to the interior space. Instead of the side walls, it is also conceivable to connect the floor plate 32 to the cover plate 31 via corner posts or a central post in the center of the floor plate 32 or cover plate 31. Support feet 24 are arranged on the base plate 22 of the support element 2, as shown by way of example in Figure 1. As further shown in Figure 2As shown, a guide bearing 4 is arranged between the cover support plate 21 and the cover plate 31, with which the simultaneous translational and rotational movement of the body part 3 relative to the support element 2 is enabled. Furthermore, an identical or similarly designed guide bearing (not shown) is also arranged between the base support plate 22 and the base plate 32 in order to enable the simultaneous translational and rotational movement of the body part 3 relative to the support element 2. Preferred embodiments of such a guide bearing 4 are shown in more detail in Figures 3 to 12. The guide bearing 4 has a curved guide track 5 which is fixed here to the cover support plate 21. In the embodiment shown in Figures 3 to 9, the guide track 5 is an integral part of a support plate 41 that can be fixed to the cover support plate 21. This support plate 41 also has parts of a pivot bearing 6 onwhich will be referred to later. In Figures 10 to 12, the guide track 5 is designed as a separate component that is fastened to the cover support plate 21. The guide bearing 4 has, as further shown in Figures 5 to 12, a guide element 8 that is guided in the guide track 5 and can be fastened to a second plate, in the above example to the cover plate 31 of the body part 3. A further component of the guide bearing 4 is a linear guide 7, shown as an example in Figures 10 and 11, with connecting parts that can be moved relative to one another, one of which is arranged on one of the plates and the other is mounted on the other of the plates by means of the pivot bearing 6. The first or the second plate can be fastened to the body part 3, as described above, or is designed as a base plate 32 or cover plate 31 of the body part 3. The guide element 8 has, as can be clearly seen in Figures 5 to 7 and 10, aa rotatably mounted shaft 81 which can be driven by a drive unit 9 and has a drive wheel 82 which is arranged in a rotationally fixed manner to the shaft 81 and a guide wheel 83 which is rotatably mounted relative to the shaft 81. The shaft 81 is preferably coupled to a drive unit 9 via a polygon 84. For this purpose, as shown for example in Figures 10 to 12, a receptacle 91 is provided in the drive unit 9, here in the form of a polygon receptacle in a housing 92 of the drive unit 9, into which the polygon 84 is inserted. A motor unit, for example in the form of an electric motor, with which the shaft 81 can be driven is accommodated. The drive wheel 82 is mounted on this shaft 81 in a rotationally fixed manner. In the illustrated embodiment, the guide wheel 83 (rotatable relative to the shaft 81) is placed between the drive wheel 82 and the shaft 81. In principle, a reversed arrangement of the drive wheel 82 and theGuide wheel 83, so that the drive wheel 82 is initially attached in a rotationally fixed manner to a cylindrical component of the shaft 81 and then the guide wheel 83 is attached to the side of the drive wheel 82 facing away from the cylindrical part of the shaft 81. In the exemplary embodiments shown, the guide track 5 is designed as a U-shaped guide groove 51 with two parallel legs 52 that are connected to one another by a base 53. The base 53 can be fastened to the first plate. A first surface area 55 and a second surface area 56 are provided on one of the legs 52. In the assembled state, the drive wheel 82 rests against the first surface area 55. In the assembled state, the guide wheel 83 rests against the second surface area 56. The surface structure of the two surface areas 55, 56 differ from one another. Thus, the second surface area 56 of the guideway 5, against which the guide wheel 83 rests, is preferably smooth-surfacedformed. Accordingly, the guide wheel 83 is preferably also formed with a smooth outer surface 831 resting against this surface region 56. The first surface region 55 of the guide track 5 is, as can be clearly seen in Figures 4 and 7, formed with a toothing 54. Accordingly, the drive wheel 82 is preferably formed as a gear wheel. In principle, it is also conceivable to form the drive wheel 82 as a friction wheel and the first surface region 55 of the guide track 5 as a friction track. In the embodiments shown in the figures, the drive wheel 82 rests directly on the guide wheel 83. It is also conceivable to provide a sliding element between the drive wheel 82 and the guide wheel 83. As can be clearly seen in Figures 4 and 7, the first surface area 55 and the second surface area 56 of the guideway 5 are preferably located on an inner surface of a leg 52 of the guideway 5 that is parallel to the direction of the axis of rotation of the shaft 81.arranged. In principle, it is also conceivable, particularly when the guide track 5 is designed as a wall extending parallel to the axis of rotation of the shaft 81, to arrange the first and second surface regions 55, 56 of the guide track 5 on an outer surface of the guide track 5 that is parallel to the direction of the axis of rotation of the shaft 81. The toothing 54 on the leg 52 of the guide track 5 is preferably cuboid-shaped in order to enable the drive wheel 82, designed as a gear, to run smoothly along the first surface region 55. The linear guide 7, as shown in Figures 10, 11 and 13, preferably has two guide rails 71 that are fastened to the second plate, and two running rails 72 that are linearly displaceable on the guide rails 71 and that are fastened to the first plate, in the illustrated embodiment to the cover plate 31 of the body part 3, via the pivot bearing 6. The longitudinal extension of the guide rails 71 and the running rails 72This determines the translation direction A of the combined translation-rotational movement of the body part 3 relative to the support element 2. Figures 8 and 13 show exemplary end positions of the support plate 41 (and thus of the body part 3) before and after the translation-rotational movement has taken place. The pivot bearing 6 preferably consists of a fastening plate which is fastened to the cover plate 31 of the body part 3, shown in Figure 5, as well as a coupling piece 62, as shown by way of example in Figure 10, to which the two guide rails 72 are fixed, and a turntable 63 which is received in a cylindrical recess provided for this purpose in the coupling piece 62. This turntable 63 is preferably rotatable about a rotational axis and is mounted on the fastening plate 61 via a radial support. By activating the motor of the drive unit 9, the shaft 81 is set in rotation and with it the drive wheel 82, which engages in the guide track 5 and theThe guide track is moved translationally and rotationally together with the body part 3 in the path determined by the geometric design of the guide track 5. As an alternative to a U-shaped design of the guide track 5, which is characterized by a base 53 and two lateral legs 52, the guide track 5 can also be formed as a single web, which has the corresponding curved guide in its longitudinal extent. The web can be arranged directly on the support plate 41, or via a base to which the web is connected. In order for the drive wheel and the guide wheel, which are in contact with the web on one side, to follow the curved path of the web, a counter-bearing for the guide wheel and / or drive wheel is arranged on the opposite side of the web, also in contact with the web, whereby the drive wheel and the guide wheel ultimately follow the curved path of the web.

[0002] List of reference symbols 1 Furniture element 2 Support element 21 Top support plate 22 Bottom support plate 23 Side wall 24 Support foot 3 Body part 31 Cover plate 32 Bottom plate 33 Side wall 4 Guide bearing 41 Support plate 5 Guide track 51 Guide groove 52 Leg 53 Base 54 Toothing 55 First surface area 56 Second surface area 6 Pivot bearing 61 Fastening plate 62 Coupling piece 63 Turntable 7 Linear guide 71 Guide rail 72 Running rail 8 Guide element 81 Shaft 82 Drive wheel 83 Guide wheel 831 Shell surface 84 Polygon 9 Drive unit 91 Receptacle 92 Housing R1, R2 Direction of rotation A Direction of translation

Claims

Claims 1. Guide bearing (4) for guiding a body part (3) mounted so as to be movable both translationally and rotationally, comprising ^ a curved guide track (5) which can be fastened to a first plate or is formed into it or integrally formed thereon, ^ at least one guide element (8) guided in or on the at least one guide track (5) and which can be fastened to a second plate, ^ a linear guide (7) with connecting parts which can be displaced relative to one another, one of which is arranged on one of the plates and the other is mounted on the other of the plates by means of a pivot bearing (6), ^ wherein the first plate or the second plate can be fastened to the body part (3) or is designed as a base plate (32) or cover plate (31) of the body part (3), characterized in that ^ the guide element (8) has a drive unit (9) which can be driven on the second plate,rotatably mounted shaft (81) with a drive wheel (82) arranged so as to be fixed in rotation with respect to the shaft (81) and a guide wheel (83) mounted so as to be rotatable relative to the shaft (81).

2. Guide bearing (4) according to claim 1, characterized in that a first surface region (55) of the guide track (5), against which the drive wheel (82) bears, has a different surface structure than a second surface region (56) of the guide track (5), against which the guide wheel (83) bears.

3. Guide bearing (4) according to claim 1 or 2, characterized in that the guide wheel (83) has a smooth-surfaced outer surface (831) and the second surface region (56) of the guide track (5) is designed to be smooth.

4. Guide bearing (4) according to one of the preceding claims, characterized in that the drive wheel (82) is designed as a gear wheel and the first surface region (55) of the guide track (5) is designed with a toothing (54).

5. Guide bearing (4) according to one of claims 1 to 3,characterized in that the drive wheel (82) is designed as a friction wheel and the first surface area (55) of the guide track (5) is designed as a friction track., 6. Guide bearing (4) according to one of the preceding claims, characterized in that the first and second surface regions (55, 56) of the guide track (5) are arranged one behind the other in the direction of the axis of rotation of the shaft (81).

7. Guide bearing (4) according to one of the preceding claims, characterized in that the guide track (5) is formed as a U-shaped guide groove (51) with two mutually parallel legs (52) which are connected to one another by a base (53), wherein the base (53) is fastenable to the first plate.

8. Guide bearing (4) according to claim 7, characterized in that the first and second surface regions (55, 56) of the guide track (5) are arranged on an inner surface of a leg (52) of the guide track (5) which is parallel to the direction of the axis of rotation of the shaft (81).

9. Guide bearing (4) according to one of claims 1 to 7, characterized in that the first and second surface areas (55,56) of the guide track (5) are arranged on an outer surface of the guide track (5) parallel to the direction of the axis of rotation of the shaft (81).

10. Furniture element (1), comprising ^ a support element (2) with a base support plate (22) and a cover support plate (21), ^ a body part (3) mounted so as to be movable both translationally and rotationally relative to the support element (2), with a base plate (32), a cover plate (31), and at least one connecting element connecting the base plate (32) to the cover plate (31), ^ wherein a guide bearing (4) with a guide track (5), a linear guide (7), a pivot bearing (6), and a guide element (8) is arranged between the cover support plate (21) and the cover plate (31) and / or between the base support plate (22) and the base plate (32),^ wherein the guide track (5) and the guide element (8) guided in the guide track (5) are arranged on mutually facing surfaces of the cover support plate (21) and the cover plate (31) or the base support plate (22) and the base plate (32), and ^ wherein one of the connecting parts of the linear guide (7) is arranged on the cover support plate (21) or the cover plate (31) and the other of the connecting parts is arranged on the other of the cover support plate (21) or the cover plate, (32) is mounted by means of a pivot bearing (6) and / or one connecting part is arranged on the base support plate (22) or the base plate (32) and the other is mounted on the other of the base support plate (22) or the base plate (32) by means of a pivot bearing (6), characterized in that ^ the guide bearing (4) is designed according to one of the preceding claims.

11. Household appliance element, comprising ^ a support element (2) with a base support plate (22) and a cover support plate (21), ^ a body part (3) mounted so as to be movable both translationally and rotationally relative to the support element (2) and having a base plate (32), a cover plate (31) and at least one connecting element connecting the base plate (32) to the cover plate (31), ^ wherein between the cover support plate (21) and the cover plate (31) and / or between the base support plate (22) and the base plate (32) there is a guide bearing (4) with a guide track (5), a linear guide (7),a pivot bearing (6) and a guide element (8), ^ wherein the guide track (5) and the guide element (8) guided in the guide track (5) are arranged on mutually facing surfaces of the cover support plate (21) and the cover plate (31) or the base support plate (22) and the base plate (32), and ^ wherein one of the connecting parts of the linear guide (7) is arranged on the cover support plate (21) or the cover plate (31) and the other of the connecting parts is mounted on the other of the cover support plate (21) or the cover plate (32) by means of a pivot bearing (6) and / or one connecting part is arranged on the base support plate (22) or the base plate (32) and the other is mounted on the other of the base support plate (22) or the base plate (32) by means of a pivot bearing (6), characterized in that ^ the guide bearing (4) is designed according to one of claims 1 to 9.,

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