Device for motion guidance, sliding element and furniture

Abstract

Device (1) for guiding the movement of a sliding element (6) that can be arranged between opposing side walls (3, 4) of a piece of furniture such as kitchen or living room furniture, wherein kitchen furniture also includes kitchen appliances such as ovens or refrigerators and the like, wherein the device (1) comprises a support rail (7) that can be attached to a rod arrangement (5) on the side wall (3, 4) of the furniture, and has an extension rail (8) that is displaceable relative to the support rail (7), so that in the installed operating state of the device (1) the sliding element (6) can be supported on a bearing surface (9) of a rail body (10) of the extension rail (8) extending in the longitudinal direction of the device (1) and is linearly movable relative to the rod arrangement (5), wherein the extension rail (8) is displaceably mounted along a bearing section of the device (1) via rolling element bearing means (11) of the device (1).wherein a top surface (12) of the rail body (10) of the extension rail (8) comprises an outer surface (12a) and an inner surface (12b) opposite the outer surface (12a), wherein the inner surface (12b) can be brought into contact with the rolling element bearing means (11), wherein, with reference to the operating state of the device (1), the bearing surface (9) for the push element (6) is offset vertically upwards relative to the outer surface (12a) of the top surface (12) of the rail body (10) of the extension rail (8), wherein the bearing surface (9) for supporting the push element (6) is provided on a web section (14) formed integrally with the rail body (10) of the extension rail (8), characterized in that the web section (14) comprises two adjacent material layers.

Description

State of the art

[0001] In furniture such as kitchen or living room furniture, sliding elements like drawers or shelves are regularly mounted between horizontally opposing side panels. Kitchen furniture also includes kitchen appliances such as ovens, refrigerators, and the like.

[0002] For example, on opposite side walls inside a kitchen appliance or oven, such as in the oven's baking chamber, there is a rod arrangement, for example a side grid, whereby two identical side grids made of elongated narrow rod sections such as profiles are provided for the double-sided reception of the drawer element.

[0003] One or more vertically offset sliding elements can be attached to the fixed, opposing rod arrangements located inside the oven. Each sliding element is horizontally supported by opposing lateral sections on the two rod arrangements and can be moved linearly and horizontally along the rod arrangements, for example, pulled out of the oven and pushed back in.

[0004] In an oven, the drawer elements are designed, for example, as a baking tray or a food carrier such as a support rack.

[0005] Alternatively or additionally, a device for guiding the movement of a sliding element can be provided for each of the opposing rod arrangements, each consisting of a support rail and an extension rail. Each device can be arranged on the respective rod arrangement. The lateral sections of a sliding element can be supported on the two devices located on a common vertical plane. Using the respective telescopic devices, the sliding element, supported on the device(s) or on the two devices, can be conveniently and safely moved linearly, pulled out, and pushed back into the oven.

[0006] The device can, for example, be detachably attached to the rod assembly. For instance, the device is designed as a partial extension rail, comprising rolling element bearings for supporting the extension rail, wherein the rolling element bearings act between a rail body of the extension rail and a bearing section of the device.

[0007] The following documents are cited as examples of the state of the art: DE 20 2019 107 001 U1, DE 21 2016 000 133 U1, DE 199 31 842 A1 and DE 203 21 394 U1. Purpose and advantages of the invention

[0008] The object of the present invention is to provide an alternative and / or improved device for guiding the movement of a push element, in particular with regard to adapting the attachment of the device to an existing rod arrangement to which the device can be attached.

[0009] This problem is solved by the independent claims. The dependent claims address advantageous and expedient further developments of the invention.

[0010] The invention relates to a device for guiding the movement of a sliding element that can be arranged between opposing side walls of a piece of furniture, such as a kitchen appliance. The device comprises a support rail that can be attached to a rod arrangement on the side wall of the furniture and has an extension rail that is displaceable relative to the support rail. In the installed operating state of the device, the sliding element can be supported on a bearing surface of a longitudinally extending rail body of the extension rail and can be moved linearly relative to the rod arrangement. The extension rail is displaceably mounted along a bearing section of the device via rolling element bearing means. The upper surface of the rail body of the extension rail comprises an outer surface and an inner surface opposite the outer surface, the inner surface being able to be brought into contact with the rolling element bearing means.where, with reference to the device's operating state, the bearing surface for the sliding element is offset vertically upwards towards the outside of the upper surface of the extension rail's body.

[0011] For example, the sliding element, when supported on the extension rail, is motionally coupled to the extension rail and fixed to it, e.g., engaged or locked to the extension rail, for example, at a locking section of the extension rail. For example, the locking section protrudes from the support surface, for example, a pin section that projects vertically upwards from the support surface, for example, in a front end section of the extension rail. The locking section is designed, for example, to engage appropriately in an opening or recess on the sliding element when the device is in use. When a user pulls forward on the sliding element, which is supported or placed on the support surface, the extension rail is moved forward, engaging both designated devices on the respective rod arrangement on each side wall, relative to the support rail, which is fixedly positioned on the respective rod arrangement, for example.is locked up.

[0012] The device can be detachably attached to the rod assembly, for example, without tools or manually, and can be detachably attached and removed again. For example, the device is designed as a partial extension or as a partial rail extension, comprising rolling element bearings for supporting the extension rail relative to the support rail, wherein the rolling element bearings act between the rail body of the extension rail and the bearing section of the device. For example, the bearing section of the device is an upper side of the support rail. Alternatively, for example, the device is designed as a full extension with a support rail, a center rail, and an extension rail.

[0013] For example, rolling element bearing devices comprise several individual rolling elements, such as ball or roller rolling elements, which are positioned in a defined manner relative to each other within a cage.

[0014] The core of the invention lies in the fact that the bearing surface for supporting the sliding element is provided on a web section formed integrally with the rail body of the extension rail. For example, the rail body and the web section are formed as a single, bent sheet metal part. This makes the manufacturing of the device advantageous compared to manufacturing the device in which two components are produced and subsequently joined. Previously, for example, the bearing surface was formed on a separately manufactured component, and this component was then joined to the rail body in a further, separate manufacturing step to complete the device, for example, by welding, which is complex and / or disadvantageous.

[0015] For example, the web section is designed such that, in the device's operating state (i.e., when the device is attached to the rod assembly), the bearing surface is slightly spaced vertically upwards from a horizontally extending rod section nearest to the bearing surface, such as a rod in the rod assembly, or slightly spaced upwards from the top surface of the rod section. For example, the web section is designed such that, in the device's operating state, the bearing surface is slightly spaced vertically upwards from the top surface of the nearest horizontal rod section in the rod assembly. For example, the distance between the bearing surface and the top surface of the horizontal rod section of the rod assembly is in the millimeter range; for example, this distance is between 1 and 5 millimeters.

[0016] For example, the relevant rod section or rod of the rod assembly is a lower rod section of two parallel rod sections that are present in pairs on the rod assembly and are vertically spaced apart, defining an insertion gap. For example, in a rod assembly without an attached insertion device, the insertion gap serves to support and guide a shear element. The two paired rod sections of the rod assembly have a vertical distance that allows a lateral section of the shear element to be positioned between them with clearance to support the shear element on the lower of the two rod sections when no device is present on the rod assembly. The shear element then slides on the underside of the lower rod section during extension and insertion.To prevent the underside of the lateral section of the push element, which rests on the support surface, from simultaneously rubbing against the top of the lower horizontal bar section of the bar assembly when the device is attached, the support surface is positioned slightly above the top of the lower horizontal bar section. Otherwise, a portion of the lateral section of the push element extending laterally across the support surface and the bar section could come into contact, resulting in scraping noises when the push element, supported by the device, is moved, and / or a braking effect would occur due to friction between the underside of the push element and the top of the lower horizontal bar section.

[0017] For example, the rail body is designed as a bent sheet metal component. For example, the web section is integrally connected to the remaining part of the rail body via a bend. For example, the bend between the rail top and the web section is at a right angle.

[0018] For example, the web section projects upwards or vertically from the top surface of the rail body. For example, the web section has a main section, e.g., from a bend to the bearing surface. For example, the bearing surface is a narrow upper surface of the web section, such as the highest vertical point in the device's operating state. For example, the bearing surface is formed as a bend in a section of the extension rail material or as a portion of the bend. For example, the bearing surface is formed as a bend that joins seamlessly to the main section coming from below. For example, the bend is formed at an angle of 180 degrees downwards. For example, the bearing surface is slightly convex outwards.

[0019] For example, the main section of the web, e.g., one or two vertical layers of material, bridges a vertical gap between the top surface of the rail body and the bearing surface. The bearing surface and the lateral section of the shear element are coordinated so that mutual contact can be established at points, along lines, or over a surface when supported.

[0020] For example, the bearing surface serves to provide contact support for a part of the shear element, such as the underside of a lateral section of the shear element. Accordingly, the bearing surface serves to support the shear element from below.

[0021] For example, the web section extends over an entire or a substantial length of, for example, 80 to 95 percent of the length of the extension rail.

[0022] For example, the bearing surface is formed over the entire length or over a partial length of the web section.

[0023] For example, the bearing surface is e.g., elongated and narrow, extending continuously along the web section. For instance, the width of the bearing surface, perpendicular to the longitudinal extent of the web section or perpendicular to the bearing surface itself, may be equal to one or twice the thickness of the web section material, such as the thickness of the associated sheet metal.

[0024] For example, the rail body including the web section is designed as a bent sheet metal strip or as a bent sheet metal profile.

[0025] For example, the web section, which is formed in one piece with the rail body, is connected to the top of the rail body of the extension rail via a bend.

[0026] For example, the web section connects to the remaining part of the rail body via a bend. For example, the bend is at a right angle. For example, in the operating state of the device, the web section is vertically oriented. For example, in the operating state of the device, the top surface of the extension rail body is horizontally oriented.

[0027] For example, the bend between the web section and the top of the rail runs along a longitudinal extension of the top surface, such as along a longitudinal edge of the top surface of the rail body.

[0028] For example, the web section extends over the length of the rail body. For example, the web section is wall-like and / or designed as a thin sheet metal strip. For example, a longitudinal extension or axis of the web section is parallel to the longitudinal axis of the extension rail, e.g., parallel to the longitudinal axis of the extension rail body.

[0029] For example, the web section extends over the substantial length or the entire length of the rail body or the top of the rail. This allows for advantageous support of the shear element on the web section. For instance, linear, strip-shaped, and / or point-like support of the shear element on the web section, and thus on the extension rail, is possible, e.g., across multiple support areas.

[0030] For example, the bearing surface is part of the web section. For instance, the bearing surface is formed by the vertically upper end of the web section in the device's operating state.

[0031] For example, the bearing surface is an integral part of a bend in a material section of the web section. For example, in the device's operating state, the bend is formed at an upper end of the web section.

[0032] Alternatively, for example, the support surface is separate from the web section, for example attached as a separate element to the web section or formed in one piece with the web section.

[0033] According to the invention, the web section comprises two adjacent layers of material. For example, with respect to the device's operating state, the web section comprises an upwardly directed sheet metal section extending to a bend. From the bend, a subsequent downwardly directed sheet metal section extends to a height that corresponds to, for example, coincides with the top surface of the extension rail's body. For example, one side of the upwardly directed sheet metal section is in contact with one side of the downwardly directed sheet metal section. This provides a mechanically relatively stable web section, for example, in the form of a double-walled or two-layered web section.

[0034] For example, the upward-facing sheet metal section and the downward-facing sheet metal section form two layers of material lying flat against each other, which are oriented parallel or perpendicularly in the usable state.

[0035] For example, the bearing surface is formed by an upper edge of the web section. For example, the bearing surface is formed by a blunt end or by a shaped, e.g., bent, upper end of the web section, or is attached to the web section in a blunt or bent manner.

[0036] For example, the upper edge of the web section is formed by bending the material of the web section. For example, the upper edge of the web section is bent over and forms the bearing surface.

[0037] For example, viewed in a width direction of the device, the web section comprises an inner material layer and an outer material layer.

[0038] For example, both material layers are connected to each other over a surface and / or at their corresponding longitudinal ends, e.g. by a material bend, for example with a bending angle of 180 degrees.

[0039] For example, the outer material layer extends downwards into an area on the underside of the device.

[0040] For example, retaining devices are provided for the detachable anchoring of the device to the rod assembly. These retaining devices include, for example, locking devices for the locking anchoring of the device to the rod assembly, for example, to a vertical rod section and / or a horizontal rod section of the rod assembly.

[0041] For example, the retaining elements are present on the support rail, e.g., integrated into the support rail as a single piece.

[0042] For example, the holding means are designed to grip a vertical and / or horizontal section of the rod assembly. For example, the holding means are spring-loaded. This allows for a self-aligning anchorage. For example, the holding means can be applied to a rod section of the rod assembly in a gripping manner. For example, the holding means are designed such that, in the anchored operating state of the device on the rod assembly, movement of the support rail in two opposite directions is prevented, for example, with respect to a horizontal and / or vertical spatial direction.

[0043] The invention relates to a sliding element that can be movably arranged between opposing side walls of a piece of furniture, such as a kitchen appliance, in particular a cooking tray for an oven, with a device according to one of the embodiments described above. This provides a system consisting of a sliding element, such as a cooking tray, a support rack, a baking tray, or a shelf, with a device for guiding its movement, such as a partial rail extension. For example, the system comprises a sliding element and two corresponding devices for guiding its movement.

[0044] Finally, a piece of furniture, particularly a kitchen appliance, is proposed, with opposing side walls and a rod arrangement on each side wall, wherein a device for guiding movement is provided according to one of the embodiments discussed above. For example, the piece of furniture is a kitchen appliance such as an oven with a baking chamber, which has a rod arrangement on each of its opposing side walls, each with a device for guiding movement. Character description

[0045] Further features and advantages of the invention are explained in more detail with reference to exemplary embodiments. Specifically, the following are shown: Fig. 1 an internal component of a kitchen appliance with rod arrangements and device for movement guidance in a perspective view obliquely from the front, Fig. 2 a device for guiding the movement of a thrust element from a first side, Fig. 3 the device according to Fig. 2 from a second page, Fig. 4 the device according to Fig. 2 in perspective view, Fig. 5 the device according to Fig. 2 in a frontal view omitting part of the device and Fig. 6 a device for guiding the movement of a push element in a frontal view, omitting sections of the device in an attached state on a rod arrangement.

[0046] Fig. Figure 1 shows, in a typical orientation, an open-fronted inner part 2 of a piece of furniture, the furniture being a kitchen appliance such as an oven, and the inner part 2 belonging to the oven's baking chamber. The inner part 2 encloses the oven's baking chamber at the rear, bottom, top, and sides with opposing side walls 3 and 4 of the baking chamber. One front of the inner part 2 is open and can be closed to the outside during oven operation by an oven door (not shown).

[0047] Inside the baking muffle, an identically constructed rod arrangement 5, such as a side grid, is attached to both side walls 3, 4. The rod arrangement 5 is in Fig. 1 is only visible on the side wall 3. A device 1 for guiding the movement of a push element 6 is attached to the rod arrangement 5 (see. Fig. 6) arranged. The sliding element 6, for example a cooking tray of the oven, can be supported on its underside by lateral longitudinal sections of the sliding element 6 on a support surface 9 of the device. Both opposing longitudinal sections of the sliding element 6 can be supported in the same way on the respective device 1 at the respective rod arrangement 5 on the side walls 3 and 4, at the same horizontal height H of the baking muffle (see ). Fig. 1).

[0048] As an example, the device 1 for guiding the movement of the sliding element 6 is designed as a full extension and has a support rail 7 and an extension rail 8 that is movable relative to the support rail 7. A center rail 7a is provided between the support rail 7 and the extension rail 8.

[0049] In the operating state of the device 1, attached to the rod arrangement 5, the push element 6 is supported on the bearing surface 9 of a rail body 10 of the extension rail 8 extending longitudinally along the device 1. The push element 6 is coupled to the extension rail 8 (see figure). Fig. 6), for example, locked onto a locking section of the extension rail 8, and together with the extension rail 8, linearly movable relative to the rod arrangement 5 and the support rail 7 fixed to it via the center rail 7a in an extension direction S1 and in a insertion direction S2 (see Fig. 1).

[0050] The extension rail 8 is slidably mounted along a bearing section of the device or the center rail 7a via rolling element bearing means 11 of the device 1. A top surface 12 of the rail body 10 of the extension rail 8 comprises an outer surface 12a and an inner surface 12b opposite the outer surface 12a. The inner surface 12b can be brought into contact with the rolling element bearing means 11.

[0051] For example, the rolling element bearing means 11 comprise roller-shaped bearing bodies 11a and spherical bearing bodies 11b, which are held, for example, in a common bearing cage 13. For example, the rolling element bearing means 11 comprise upper rolling element bearing means and lower rolling element bearing means. For example, the rolling element bearing means 11 act on an upper section of the device 1 between the extension rail 8 and the, for example, U-shaped center rail 7a. The rolling element bearing means 11 also act between the center rail 7a and the support rail 7 on a lower section of the device 1.

[0052] Referring to the device's usable state, the support surface 9 for the push element 6 is offset upwards in the vertical direction V by a height or height dimension X1 (see Fig. 5, Fig. 6), with reference to the operating state of the device 1, to the outside 12a of the top of the rail 12 of the rail body 10 of the extension rail 8.

[0053] The bearing surface 9 is located on a web section 14 that is integrally formed with the rail body 10 of the extension rail 8. For example, the bearing surface 9 is formed by a vertical upper edge of the web section 14. For example, the bearing surface 9 is part of the web section 14.

[0054] The bridge section 14 is connected to the top of the rail 12 of the rail body 10 via a bend U1.

[0055] For example, the web section 14 in a width direction B of the device 1 has two adjacent material layers, comprising an inner material layer 14a and an outer material layer 14b.

[0056] For example, the outer material layer 14b extends downwards from the support surface 9 to a region of the underside of the device 1. For example, the vertical height dimension X2 of the outer material layer 14b is variable, for instance, reaching to the underside of a lower part of the extension rail 8 or ending somewhat higher. For example, the vertical height dimension X2 of the outer material layer 14b corresponds at least approximately to the overall height of the device 1.

[0057] A height dimension X3 is variably specified or predefined, depending on the manufacturing specifications of the device 1. For example, the height dimension X3 defines a vertical distance between the support surface 9 and a top surface 19 of a lower rod section 18. The lower rod section 18 is identical to a parallel rod section 17 above it, with an insertion gap defined between the two parallel rod sections 17, 18, which are vertically spaced apart in pairs on the rod assembly 5. For example, in a rod assembly 5 that does not have an attached device 1, the insertion gap serves for inserting, supporting, and guiding a shear element 6.

[0058] For example, retaining means 15, 16 of the device 1 are designed to releasably anchor the device 1 to the rod assembly 5. The retaining means 15, 16 are designed for anchoring, for example, to a vertical rod section 5a and / or to a horizontal rod section 5b and / or another horizontal rod section 5c of the rod assembly 5. For example, the retaining means 15, 16 include locking devices for locking the device 1 to the rod assembly 5, for example, to the vertical rod section 5a and / or the horizontal rod sections 5b, 5c of the rod assembly 5.

[0059] For example, the retaining elements 15 are designed as front retaining elements 15. For example, the retaining elements 16 are designed as rear retaining elements 16. Reference symbol list 1 Device 2 inner part 3 side wall 4 side wall 5 Staff arrangement 5a-5c Staff section 6 shear element 7 Support rail 7a Middle rail 8 extension rail 9 contact surface 10 rail bodies 11 Rolling element bearings 11a Bearing body 11b Bearing body 12 Rail top 12a Outside 12b Inside 13 bearing cages 14 Bridge section 14a Material situation 14b Material situation 15 Holding devices 16 Holding devices 17 Staff Section 18 Staff Section 19 Top

Claims

[1] Device (1) for guiding the movement of a sliding element (6) that can be arranged between opposing side walls (3, 4) of a piece of furniture such as kitchen or living room furniture, wherein kitchen furniture also includes kitchen appliances such as ovens or refrigerators and the like, wherein the device (1) comprises a support rail (7) that can be attached to a rod arrangement (5) on the side wall (3, 4) of the furniture, and has an extension rail (8) that is displaceable relative to the support rail (7), so that in the installed operating state of the device (1) the sliding element (6) can be supported on a bearing surface (9) of a rail body (10) of the extension rail (8) extending in the longitudinal direction of the device (1) and is linearly movable relative to the rod arrangement (5), wherein the extension rail (8) is displaceably mounted along a bearing section of the device (1) via rolling element bearing means (11) of the device (1),wherein a top surface (12) of the rail body (10) of the extension rail (8) comprises an outer surface (12a) and an inner surface (12b) opposite the outer surface (12a), wherein the inner surface (12b) can be brought into contact with the rolling element bearing means (11), wherein, with reference to the operating state of the device (1), the bearing surface (9) for the push element (6) is offset vertically upwards relative to the outer surface (12a) of the top surface (12) of the rail body (10) of the extension rail (8), wherein the bearing surface (9) for supporting the push element (6) is provided on a web section (14) formed integrally with the rail body (10) of the extension rail (8), characterized by , that the bridge section (14) comprises two adjacent layers of material. [2] Device (1) according to claim 1, characterized by, that the web section (14) formed in one piece with the rail body (10) is connected to the top of the rail (12) of the rail body (10) of the extension rail (8) via a bend. [3] Device (1) according to one of claims 1 and 2, characterized by , that the web section (14) is formed over the length of the rail body (10). [4] Device (1) according to any one of the preceding claims, characterized by , that the bearing surface (9) is part of the web section (14). [5] Device (1) according to any one of the preceding claims, characterized by , that the bearing surface (9) is formed by an upper edge of the web section (14). [6] Device (1) according to any one of the preceding claims, characterized by , that an upper edge of the web section (14) is formed by a bending of the material of the web section (14). [7] Device (1) according to any one of the preceding claims, characterized by, that, viewed in a width direction of the device (1), the web section (14) comprises an inner material layer (14a) and an outer material layer (14b). [8] Device (1) according to claim 7, characterized by , that the outer material layer (14b) extends downwards into an area of ​​an underside of the device (1). [9] Device (1) according to any one of the preceding claims, characterized by , that holding means (15, 16) are provided for the detachable anchoring of the device (1) to the rod arrangement (5). [10] A sliding element (6) that can be arranged movably between opposite side walls (3, 4) of a piece of furniture such as a kitchen or living room furniture, wherein kitchen furniture also includes kitchen appliances such as ovens or refrigerators and the like, with a device (1) according to one of the preceding claims. [11] Furniture such as kitchen or living room furniture, wherein kitchen furniture also includes kitchen appliances such as ovens or refrigerators and the like, with opposing side walls (3, 4) and each with a rod arrangement (5) on the side wall (3, 4), wherein a device (1) according to one of claims 1-9 is provided.

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