Drawer guide

Abstract

A drawer guide (4) for a drawer for movably supporting a drawer (3) in a furniture cabinet (2), comprising a cabinet side rail (9) to be fixed to the furniture cabinet (2), at least one drawer side rail (10) to be coupled to the drawer (3) supported movably in a longitudinal direction (L) relative to the cabinet side rail (9), and optionally at least one intermediate rail arranged between the cabinet side rail (9) and the drawer side rail (10), and at least one rail, preferably the cabinet side rail (9), the intermediate rail and / or the at least one drawer side rail (10) are fixed to the furniture cabinet (2), and the drawer side rail (10) is movable in a longitudinal direction (L) relative to the cabinet side rail (9). A drawer guide (4) for a drawer, wherein the rail (10) has at least one profile (9a, 10a) formed from at least one flat sheet metal having two longitudinal edges (14a, 14b, 15a, 15b) extending parallel to one another when viewed in a cross section normal to the longitudinal direction (L), and wherein the profile (9a, 10a) of at least one rail (9, 10) has at least one turn-up portion (16, 17) on at least one longitudinal edge (14a, 14b, 15a, 15b), preferably on both longitudinal edges (14a, 14b, 15a, 15b), which turn-up portion has at least twice the material thickness (2X).

Description

[Technical Field]

[0001] The present invention provides a drawer guide for a drawer for movably supporting a drawer in a furniture cabinet, comprising: - a cabinet side rail to be fixed to the furniture cabinet; - at least one drawer side rail to be coupled to the drawer, supported so as to be longitudinally movable relative to the cabinet side rail, and optionally at least one intermediate rail arranged between the cabinet side rail and the drawer side rail; Equipped with At least one rail, preferably a cabinet side rail, an intermediate rail and / or at least one drawer side rail, has at least one profile formed from at least one flat sheet metal with two longitudinal edges extending parallel to one another when viewed in a cross section normal to the longitudinal direction. This relates to a drawer guide for a drawer.

[0002] Furthermore, the invention relates to a drawer side wall comprising a drawer guide for a drawer of the type described below and a hollow chamber profile which is connected or can be connected to at least one drawer side rail of the drawer guide for the drawer.

[0003] The rails of drawer guides are often made from flat sheet metal, which is subsequently bent and / or deformed to form the profiled rails. The finished profile absorbs the horizontal and vertical loads on the drawer guide, thereby providing stable guidance for the drawers connected to it.

[0004] A common problem is the amount of metal required to manufacture the drawer guides for drawers. The increased material usage increases weight and costs in mass production. Therefore, it is desirable to use as little metal as possible, especially since resource-efficient use of raw materials offers both environmental and economic benefits.

[0005] EP 0 363 583 A1 discloses a drawer guide for a drawer, in which an intermediate rail is supported between a cabinet side rail and a drawer rail so that it can run. When viewed in cross section, the intermediate rail has two lateral running webs on which running rollers roll. The lateral running webs of the intermediate rail are each formed by a turn-up section with double the material thickness. This has the disadvantage that the bending process for producing the intermediate rail is relatively complex.

[0006] SUMMARY OF THE INVENTION The object of the present invention is to provide an improved drawer guide for a drawer of the type described at the beginning, in which the above-mentioned disadvantages are avoided.

[0007] This problem is solved according to the invention by the features of claim 1. Further advantageous configurations of the invention are set out in the dependent claims.

[0008] According to the invention, it is specified that at least one rail profile has at least one turn-up on at least one longitudinal edge, preferably on both longitudinal edges, which has at least twice the material thickness.

[0009] In other words, the cabinet side rail profiles and / or drawer side rail profiles and / or intermediate rail profiles have a turn-up with at least double the wall thickness on at least one longitudinal edge, preferably on both longitudinal edges. This allows, on the one hand, a simple bending process for the sheet metal, and, on the other hand, increases the stiffness of the profile in the region of the turn-up. Furthermore, the turn-up forms a rounded edge that reduces the risk of injury from sharp longitudinal edges.

[0010] A particular advantage of the present invention is that thinner sheet metal can be used to manufacture the drawer guide for the drawers (i.e., for example, 0.7 mm sheet metal instead of 1.5 mm sheet metal). At least one turn-up allows for increased stiffness in highly loaded areas of the cabinet side rails and / or drawer side rails and / or intermediate rails. Highly loaded areas include in particular the tracks of the cabinet side rails and / or drawer side rails and / or intermediate rails on which rolling elements (in particular the rolling elements of the running carriage) can roll.

[0011] Assuming, as an example, that a thinner sheet metal with a thickness of 0.7 mm is used, the heavily loaded area is given a thickness of 1.4 mm by the turn-up. The resistant raceway allows the rolling elements to be optimally guided along the rail. In contrast, the remaining areas of the rail, which are not exposed to heavy loads, can be made with a reduced material thickness (i.e., a thickness of 0.7 mm). This measure allows for a significant reduction in the material usage, weight and cost required to manufacture the drawer guide for the drawer.

[0012] According to one embodiment, it may be specified that the drawer guide for the drawer comprises at least one rolling element which is longitudinally runnable at least partially along at least one fold.

[0013] Preferably, - at least one running carriage arranged between the cabinet side rail and at least one drawer side rail, on which at least one rolling element is arranged; and / or - at least one rolling element is provided which is rotatably supported about a rotation axis, the rotation axis of the rolling element being oriented transversely to one of the longitudinal edges; It may be specified that:

[0014] Further details and advantages of the invention will become apparent from the following description of the drawings. [Brief explanation of the drawings]

[0015] [Figure 1a] FIG. 1 is a perspective view of a piece of furniture with drawers. [Figure 1b] FIG. 10 is a perspective view of a drawer guide for a drawer. [Figure 2a] FIG. 10 is a cross-sectional view of a drawer guide for a drawer without rolling elements attached. [Figure 2b] FIG. 10 is a cross-sectional view of a drawer guide for a drawer to which rolling elements are attached. [Figure 3a] FIG. 10 is a perspective view of the cabinet-side rail of the drawer guide for the drawer. [Figure 3b] FIG. 10 is a cross-sectional view of the cabinet-side rail of the drawer guide for the drawer.

[0016] 1a shows a perspective view of furniture 1 with a furniture cabinet 2. Drawers 3 are supported for movement relative to the furniture cabinet 2 via drawer guides 4. For reasons of clarity, the topmost drawer 3 is not shown. Each drawer 3 has a front panel 5, a drawer bottom panel 6, drawer side walls 7 and a rear wall 8.

[0017] The drawer guide 4 for the drawer comprises a cabinet side rail 9 which can be fixed to the furniture cabinet 2 via a fixing section 11. Furthermore, at least one drawer side rail 10 is provided which can be coupled to the drawer 3 and is supported so as to be movable relative to the stationary cabinet side rail 9.

[0018] Optionally, the drawer guide 4 for the drawer may have an intermediate rail that can run between the cabinet side rail 9 and the drawer side rail 10. This intermediate rail allows the drawer 3 to be fully extended relative to the furniture cabinet 2.

[0019] The drawer side walls 7 may each have one cavity profile 7a which is connected or can be connected to at least one drawer side rail 10 of the drawer guide 4 for the drawer.

[0020] 1b shows a perspective view of a drawer guide 4 for a drawer. In this case, a cabinet side rail 9 to be fixed to the furniture cabinet 2 and a drawer side rail 10 which can run in the longitudinal direction (L) are shown. The cabinet side rail 9 can be fixed to the furniture cabinet 2 via a fixing section 11.

[0021] The fastening section 11 may have at least one opening 12 , preferably circular, for the passage of a screw that can screw-fasten the fastening section 11 to the furniture cabinet 2 .

[0022] The fixing section 11, the cabinet side rail 9 and the drawer side rail 10 may each have at least one reinforcing rib 13. At least one opening 12 for passing a screw may be located between two reinforcing ribs 13. This allows the resistance moment in this area to be increased.

[0023] In Figure 2a, the drawer guide 4 for a drawer is shown in cross section normal to the longitudinal direction (L). A cabinet side rail 9 to be fixed to the furniture cabinet 2 and a drawer side rail 10 which can run relative to this cabinet side rail 9 can be seen.

[0024] The fixing section 11 of the cabinet side rail 9 has a fixing surface 19 which can at least partially abut against the furniture cabinet 2 when the cabinet side rail 9 is fixed to the furniture cabinet 2 .

[0025] The cabinet side rails 9 and / or the drawer side rails 10 are bent from flat sheet metal with two longitudinal edges 14a, 14b (drawer side rail 10), 15a, 15b (cabinet side rail 9) to form profiles 9a, 10a. The flat sheet metal has a material thickness (X).

[0026] The flat sheet metal forming the profile may have a material thickness (X) of, for example, 0.5 mm to 1.0 mm, preferably 0.7 mm.

[0027] The profile 9a of the cabinet side rail 9 and / or the profile 10a of the drawer side rail 10 has at least one longitudinal edge 14a, 14b, 15a, 15b, preferably both longitudinal edges 14a, 14b, 15a, 15b, at least one turn-up 16, 17 having at least twice the material thickness (2X). Preferably, this at least one turn-up 16, 17 has exactly twice the material thickness (2X).

[0028] However, if desired, the folded portions 16, 17 may be folded three times or more, thereby obtaining a material thickness (X) that is three times or more thick.

[0029] At least one fold 16, 17 may be arranged on one longitudinal edge 15b of the cabinet side rail 9. This fold 16, 17 can be abutted against the furniture cabinet 2 when the cabinet side rail 9 is fixed.

[0030] According to one embodiment, at least one folded portion 16, 17 may be specified to have at least two thin plate sections 24a, 24b at at least one longitudinal edge 14a, 14b, 15a, 15b that are at least partially in contact with each other.

[0031] At least one drawer side rail 10 may have at both longitudinal edges 14a, 14b at least one fold 16, 17 having at least twice the material thickness (2X), both folds 16, 17 oriented laterally, preferably at substantially right angles to each other, and / or one of both folds 16, 17 oriented inward and the other of both folds 16, 17 oriented outward.

[0032] At least one fold portion 16, 17 may have at least one bent portion 18 extending in the longitudinal direction (L) on at least one longitudinal edge 14a, 14b, 15a, 15b when viewed in a cross section normal to the longitudinal direction (L). Preferably, at least one fold portion 16, 17 is formed on at least one longitudinal edge 15a of cabinet side rail 9.

[0033] The cabinet side rail 9 may have a fastening section 11 with a fastening surface 19 that can at least partially abut against the furniture cabinet 2 when the cabinet side rail 9 is fastened to the furniture cabinet 2 .

[0034] At least one fastening section 11 may have at least one opening 12, preferably circular, for passing a fastening means, preferably a screw.

[0035] According to one embodiment, at least one opening 12 is specified to be surrounded by a second surface 20 spaced from the fixed surface 19 by the material thickness (X) of the fixed section 11 and by a ridge 21 protruding laterally from this second surface 20.

[0036] The ridge 21 surrounding the opening 12 can significantly improve the rigidity of the fixing section 11 in the area of ​​the opening 12. This is particularly advantageous when used with thin plates having a small material thickness (X).

[0037] At least one reinforcing rib 13 may have a longitudinal direction extending transversely to the longitudinal direction (L) of the cabinet side rail 9. At least one reinforcing rib 13 may be arranged on a vertical leg of the fixed section 11 and / or on a lateral leg of the fixed section 11.

[0038] In Figure 2b, the drawer guide 4 for the drawer shown in Figure 2a is shown in cross section with a number of mounted rolling elements 23a, 23b, 23c.

[0039] Preferably, the rolling elements 23a, 23b, 23c are supported on one common running carriage 22, and this running carriage 22 is supported so as to be able to run between the cabinet side rail 9 and at least one drawer side rail 10.

[0040] According to a possible embodiment, it is specified that at least one rolling element 23a is rotatable about a horizontal axis in the assembled position and is capable of running along the turn-up portion 16 of the drawer side rail 10.

[0041] At least one other rolling element 23b is rotatable about a horizontal axis in the assembled position and is capable of running along the folded portion 17 of the cabinet side rail 9.

[0042] At least one further rolling element 23c is rotatable about a vertical axis in the assembled position and is capable of running along a section of the cabinet side rail 9 having double wall thickness (2X).

[0043] 3a shows a perspective view of a profile 9a of the cabinet side rail 9. A fastening section 11 for fastening the cabinet side rail 9 has a fastening surface 19 for contacting the furniture cabinet 2. The fastening section 11 is provided with at least one opening 12 for passing a fastening means, in particular a screw, through which the cabinet side rail 9 can be fastened to the furniture cabinet 2.

[0044] The at least one opening 12 is surrounded by a ridge 21 projecting laterally from the second face 20 of the fixing section 11, at a second face 20 spaced apart from the fixing face 19 by a material thickness (X). The heads of screws for fixing the fixing section 11 to the furniture part 2 are housed at least partly, preferably substantially completely, inside the annular ridge 21 in the assembled state.

[0045] The mutually contacting sheet metal sections 24a, 24b of the turn-up parts 16, 17 are connected to one another by at least one common punched-out section 25, 26. In this way, the turn-up parts 16, 17 can be additionally stabilized.

[0046] According to one embodiment, two punched portions 25, 26 are provided spaced apart from each other in the longitudinal direction (L).

[0047] According to a preferred embodiment, at least one punched-out section 25, 26 is arranged at the end of a section 9a of the cabinet side rail 9 and / or at the end of a section 10a of at least one drawer side rail 10; and / or - there are at least two common punched portions 25, 26, which are preferably mirror images of each other; and / or - at least one running carriage 22 (FIG. 2b) is provided, and at least one punched-out portion 25, 26 forms a stop for limiting the running stroke of the at least one running carriage 22; and / or At least one punched section 25, 26 is formed as a bent tongue. It may be specified that:

[0048] At least one punched-out section 25, 26 can thus perform a dual function. On the one hand, it serves to stabilize the mutually contacting sheet metal sections 24a, 24b of the fold-back sections 16, 17. On the other hand, the laterally protruding punched-out sections 25, 26 are provided to limit the travel stroke of the running carriage 22 in the longitudinal direction (L). The punched-out sections 25, 26 ensure that the running carriage 22 remains in a defined end position and thus cannot travel beyond the end of the cabinet side rail 9 and / or at least one drawer side rail 10.

[0049] Figure 3b shows a cross-sectional view of the drawer guide 4 for the drawer shown in Figure 3a. At least one pocket 27 for partially accommodating generated swarf material is arranged on the fixing surface 19 of the fixing section 11 adjacent to the at least one opening 12. In this way, undesired separation of the fixing section 11 from the furniture part 2 can be prevented when the fixing section 11 is screwed in.

Claims

1. A drawer guide (4) for a drawer for movably supporting a drawer (3) in a furniture cabinet (2), comprising: - cabinet side rails (9) to be fixed to said furniture cabinet (2); at least one drawer side rail (10) to be coupled to the drawer (3), supported so as to be movable in the longitudinal direction (L) relative to the cabinet side rail (9); Equipped with At least one rail (9, 10) has, when viewed in a cross section normal to said longitudinal direction (L), at least one profile (9a, 10a) formed from at least one flat sheet metal with two longitudinal edges (14a, 14b, 15a, 15b) extending parallel to one another; A drawer guide (4) for a drawer, wherein the profile (9a, 10a) of the at least one rail (9, 10) has at least one turn-up (16, 17) on at least one longitudinal edge (14a, 14b, 15a, 15b) with at least twice the material thickness (2X), The at least one folded portion (16, 17) has at least one bent portion (18) extending in the longitudinal direction (L) when viewed in a cross section normal to the longitudinal direction (L) on the at least one longitudinal edge (14a, 14b, 15a, 15b), the at least one drawer side rail (10) has at least one fold (16) on both longitudinal edges (14a, 14b) with at least twice the material thickness (2X), both folds (16) being directed laterally relative to one another and / or one of both folds (16) being directed inward and the other of both folds (16) being directed outward; A drawer guide (4) for a drawer, characterized in that

2. 2. The drawer guide (4) for a drawer according to claim 1, further comprising at least one intermediate rail disposed between the cabinet side rail (9) and the drawer side rail (10).

3. 3. A drawer guide (4) for a drawer according to claim 2, wherein said at least one rail (9, 10) is said cabinet side rail (9), said intermediate rail and / or said at least one drawer side rail (10).

4. 2. A drawer guide (4) for a drawer according to claim 1, characterized in that the profile (9a, 10a) of the at least one rail (9, 10) has at least one fold (16, 17) on both longitudinal edges (14a, 14b, 15a, 15b) with at least twice the material thickness (2X).

5. A drawer guide (4) for a drawer according to claim 1, characterized in that the drawer guide (4) for a drawer has at least one rolling element (23a, 23b, 23c) which can run at least partially in the longitudinal direction (L) along the at least one folded portion (16, 17).

6. - at least one running carriage (22) arranged between the cabinet side rail (9) and the at least one drawer side rail (10), on which at least one rolling element (23a, 23b, 23c) is arranged; and / or at least one rolling element (23a, 23b, 23c) is provided, supported for rotation about an axis of rotation, said axis of rotation of said rolling element (23a, 23b, 23c) being oriented transversely to one of the longitudinal edges (14a, 14b, 15a, 15b); 2. A drawer guide (4) for a drawer according to claim 1, characterized in that it is

7. 2. The drawer guide (4) for a drawer according to claim 1, wherein the at least one folded portion (17) is arranged on at least one longitudinal edge (15a, 15b) of the cabinet side rail (9), and the folded portion (17) can be abutted against the furniture cabinet (2) when the cabinet side rail (9) is fixed.

8. 2. A drawer guide (4) for a drawer according to claim 1, characterized in that the at least one folded portion (16, 17) is formed on the at least one longitudinal edge (14a, 14b, 15a, 15b) by edge bending or hemming.

9. 2. A drawer guide (4) for a drawer according to claim 1, characterized in that the at least one folded portion (16, 17) has at least two thin plate sections (24a, 24b) at least partially in contact with each other on the at least one longitudinal edge (14a, 14b, 15a, 15b).

10. 10. Drawer guide (4) for a drawer according to claim 9, characterized in that the at least two sheet metal sections (24a, 24b) have at least one common punched-out portion (25, 26).

11. the at least one punched-out section (25, 26) is arranged at the end of the section (9a) of the cabinet side rail (9) and / or at the end of the section (10a) of the at least one drawer side rail (10); and / or - at least two common punched portions (25, 26) are provided, and / or - at least one running carriage (22) is provided, said at least one punched-out portion (25, 26) forming a stop for limiting the running stroke of said at least one running carriage (22), and / or - the at least one punched portion (25, 26) is formed as a bent tongue; Drawer guide (4) for a drawer according to claim 10, characterized in that it is

12. 12. Drawer guide (4) for a drawer according to claim 11, wherein the at least two punched portions (25, 26) are formed as mirror images of each other.

13. 2. Drawer guide (4) for a drawer according to claim 1, characterized in that the flat sheets forming the profiles (9a, 10a) have a material thickness (X) of 0.5 mm to 1.0 mm.

14. 14. Drawer guide (4) for a drawer according to claim 13, characterized in that the flat sheets forming the profiles (9a, 10a) have a material thickness (X) of 0.7 mm.

15. 2. A drawer guide (4) for a drawer according to claim 1, wherein both said folds (16, 17) are oriented at right angles to each other.

16. 2. The drawer guide (4) for a drawer according to claim 1, wherein the at least one folded portion (17) is formed on at least one longitudinal edge (15a, 15b) of the cabinet side rail (9).

17. 2. The drawer guide (4) for a drawer according to claim 1, wherein the cabinet side rail (9) has at least one fixing section (11) with a fixing surface (19) that can be at least partially abutted against the furniture cabinet (2) when the cabinet side rail (9) is fixed to the furniture cabinet (2), and the at least one fixing section (11) has at least one opening (12) for passing a fixing means therethrough.

18. A drawer guide (4) for a drawer according to claim 17, wherein said fastening means are screws.

19. A drawer guide (4) for a drawer according to claim 17, wherein said at least one opening (12) is circular.

20. 18. A drawer guide (4) for a drawer according to claim 17, characterized in that the at least one opening (12) is surrounded by a second surface (20) spaced from the fixed surface (19) by the material thickness (X) of the fixed section (11) and by a ridge (21) projecting laterally from the second surface (20).

21. 2. The drawer guide (4) for a drawer according to claim 1, wherein the cabinet side rail (9) has at least one fixing section (11) with a fixing surface (19) that can at least partially abut against the furniture cabinet (2) when the cabinet side rail (9) is fixed to the furniture cabinet (2), and the at least one fixing section (11) of the cabinet side rail (9) has a folded portion (17) arranged on one longitudinal edge (15a, 15b) for abutting against the furniture cabinet (2).

22. A drawer side wall (7) comprising a drawer guide (4) for a drawer according to any one of claims 1 to 21 and at least one hollow chamber profile (7a) that is connected or can be connected to the at least one drawer side rail (10) of the drawer guide (4) for the drawer.

Images