DOUBLE-WALLED DRAWER FRAME

Abstract

A double-walled drawer frame includes an inner wall and an outer wall. At least one spacer part is or can be arranged between the inner wall and the outer wall, and the at least one spacer part is shaped substantially plate-like and can be clamped between at least one first protrusion and at least one second protrusion.

Claims

1. A double-walled drawer frame comprising: an inner wall, an outer wall, and at least one spacer part arranged between the inner wall and the outer wall, wherein the at least one spacer part is shaped substantially plate-like, and the at least one spacer part can be clamped between at least one first protrusion and at least one second protrusion.

2. The double-walled drawer frame according to claim 1, wherein the outer wall or the inner wall can be or is connected to the inner wall or the outer wall via the at least one first protrusion and/or the at least one second protrusion.

3. The double-walled drawer frame according to claim 1, wherein: the at least one first protrusion and the at least one second protrusion are arranged either on the outer wall or on the inner wall before the connection of the outer wall to the inner wall, and/or the at least one first protrusion and/or the at least one second protrusion projects/project transversely from the inner wall and/or the outer wall, and/or the at least one first protrusion and/or the at least one second protrusion is/are connected firmly, in particular in one piece, to the inner wall and/or the outer wall, in particular is/are made out of the same sheet metal part as the inner wall and/or the outer wall, and/or the at least one first protrusion and/or the at least one second protrusion extends/extend over the entire length and/or the entire width of the inner wall and/or the outer wall, and/or the at least one first protrusion and/or the at least one second protrusion forms/form a front face of the double-walled drawer frame, and/or the at least one first protrusion and the at least one second protrusion is/are arranged on two opposite sides, preferably long sides, of the inner wall and/or the outer wall.

4. The double-walled drawer frame according to claim 1, wherein the at least one spacer part: is made at least partially, preferably entirely, out of a foam, in particular a polyethylene foam, and/or has a predetermined breaking point, preferably a perforation.

5. The double-walled drawer frame according to claim 1, wherein the at least one spacer part, in the clamped state: rests flat against the inner wall and/or the outer wall, and/or covers at least a quarter of the surface area of the inner wall and/or the outer wall.

6. The double-walled drawer frame according to claim 1, wherein the at least one spacer part, in the clamped state, is arranged at a distance from an imaginary plane which is spanned by the points against which the outer wall or the inner wall rests for connection to the inner wall or the outer wall, preferably wherein the distance is between 0.1 and 0.5 millimeters.

7. The double-walled drawer frame according to claim 1, wherein the outer wall or the inner wall, in the state when connected to the inner wall or the outer wall, is curved in the direction of the inner wall or the outer wall, with the result that the outer wall or the inner wall rests against the clamped at least one spacer part.

8. The double-walled drawer frame according to claim 1, wherein the at least one first protrusion and/or the at least one second protrusion has at least one guide groove for guiding the outer wall or the inner wall, preferably wherein the at least one guide groove is shaped as a substantially semicircular bend of a sheet metal part.

9. The double-walled drawer frame according to claim 8, wherein a guiding-in surface for guiding the outer wall or the inner wall in transverse to the longitudinal direction of the at least one guide groove adjoins the at least one guide groove, preferably wherein the at least one spacer part, in the clamped state, rests against an end edge of the guiding-in surface.

10. The double-walled drawer frame according to claim 8, wherein the outer wall or the inner wall has at least one guide ridge for guiding into the at least one guide groove, preferably wherein the at least one guide ridge is shaped as a substantially semicircular bend of a sheet metal part, preferably wherein the radius of the at least one bend of the at least one guide groove is larger than the radius of the at least one bend of the at least one guide ridge, and/or the at least one guide ridge is made out of the same sheet metal part as the outer wall or inner wall, preferably out of an end piece of the outer wall or the inner wall.

11. The double-walled drawer frame according to claim 10, wherein the double-walled drawer frame comprises at least one holding device for holding the at least one guide groove on the at least one guide ridge.

12. The double-walled drawer frame according to claim 1, wherein the at least one second protrusion and/or the at least one first protrusion has a stepped shape, preferably wherein: the at least one spacer part, in the clamped state, can be arranged against the first step starting from the inner wall or the outer wall, particularly preferably wherein the at least one spacer part rests against a curvature of the at least one first step, and/or the at least one outer wall or inner wall, in the state when connected to the inner wall or outer wall, is arranged on the last, preferably second, step starting from the inner wall or outer wall.

13. The double-walled drawer frame according to claim 1, wherein the at least one second protrusion and/or the at least one first protrusion has at least one suspension ridge for suspending the outer wall or the inner wall.

14. The double-walled drawer frame according to claim 13, wherein the outer wall or the inner wall has at least one suspension groove for suspending the outer wall or the inner wall in the at least one suspension ridge, preferably wherein the at least one suspension groove is shaped as a bent end piece of the outer wall or the inner wall.

15. A drawer comprising the double-walled drawer frame according to claim 1, preferably wherein the drawer has a drawer bottom, a back wall and/or a front panel.

16. A method for mechanically and/or manually producing a double-walled drawer frame with an inner wall and an outer wall, in particular according to claim 1, wherein the inner wall and/or the outer wall has at least one first protrusion and at least one second protrusion, comprising the following method steps, in particular carried out chronologically in the specified order: at least one substantially plate-like, spacer part is clamped between the at least one first protrusion and the at least one second protrusion, the outer wall is arranged parallel to the inner wall and connected to the inner wall.

17. The method according to claim 16, wherein the outer wall and/or the inner wall is/are arranged on the at least one first protrusion and on the at least one second protrusion and connected to the inner wall or the outer wall.

18. The method according to claim 16, wherein the at least one first protrusion and the at least one second protrusion are arranged on either the outer wall or the inner wall before the connection of the outer wall to the inner wall, with the following method steps providing the outer wall or the inner wall, at least one, in particular substantially plate-like, spacer part is clamped between the at least one first protrusion and the at least one second protrusion and is thus fastened to the outer wall or the inner wall, providing the inner wall or outer wall, the outer wall is arranged parallel to the inner wall and connected to the inner wall.

19. The method according to claim 16, wherein in the case of the connection of the outer wall and the inner wall the following method steps are provided: the two walls are shifted relative to each other in a direction parallel to a longitudinal direction of the walls and/or in a direction transverse to the longitudinal direction, the two walls are connected to each other in the course of the shifting movement.

20. The method according to claim 16, wherein the at least one spacer part has a predetermined breaking point, preferably a perforation, preferably wherein the following method steps are carried out before the at least one spacer part is clamped between the at least one first protrusion and the at least one second protrusion: the at least one spacer part is broken along the predetermined breaking point, in particular toollessly, a fraction of the at least one spacer part is used as the spacer part in the following and clamped between the at least one first protrusion and the at least one second protrusion.

21. The method according to claim 16, wherein the at least one first protrusion and/or the at least one second protrusion has at least one guide groove and the outer wall or the inner wall has at least one guide ridge, with at least one of the following method steps: the at least one guide ridge is arranged in the at least one guide groove, preferably by shifting the two walls relative to each other in a direction transverse to the longitudinal direction of the walls and/or preferably such that the at least one guide groove grips around the at least one guide ridge, the at least one guide ridge is shifted in the at least one guide groove in a direction parallel to a longitudinal direction of the walls.

22. The method according to claim 16, wherein the at least one second protrusion and/or the at least one first protrusion has a stepped shape, preferably wherein: the at least one spacer part is arranged against the first step starting from the inner wall or the outer wall, particularly preferably wherein the at least one spacer part is arranged against a curvature of the at least one first step, and/or the at least one outer wall or inner wall is arranged on the last, preferably second, step starting from the inner wall or outer wall.

23. The method according to claim 16, wherein the at least one second protrusion and/or the at least one first protrusion has at least one suspension ridge and the outer wall or the inner wall has at least one suspension groove, with at least one of the following method steps: the at least one suspension ridge is arranged in the at least one suspension groove, preferably by shifting the two walls relative to each other in a direction transverse to the longitudinal direction of the walls and preferably such that the at least one suspension groove engages behind the at least one suspension ridge, the at least one suspension ridge is shifted in the at least one suspension groove in a direction parallel to a longitudinal direction of the walls.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Further embodiments and details are apparent from the figures, in which:

[0056] FIGS. 1a-h show various embodiments of arrangements of the at least one spacer part and the at least one first protrusion and the at least one second protrusion in a view perpendicular to the plane of the outer wall or the inner wall,

[0057] FIGS. 2a-d show various embodiments of arrangements of the at least one spacer part and the at least one first protrusion and the at least one second protrusion in a view parallel to the plane of the outer wall or the inner wall,

[0058] FIG. 3a shows a preferred embodiment of an inner wall before a spacer part is arranged on the inner wall,

[0059] FIG. 3b shows the embodiment from FIG. 3a with a spacer part arranged on the inner wall,

[0060] FIG. 4a shows the embodiment from FIG. 3a with an outer wall arranged on the first protrusion,

[0061] FIG. 4b shows the embodiment from FIG. 3a with an outer wall connected to the inner wall,

[0062] FIGS. 5a-c is a representation of the movement sequence during the connection of the outer wall to the inner wall,

[0063] FIG. 6a is a representation from FIG. 3b for comparison with FIGS. 6b to 6d,

[0064] FIG. 6b is a sectional representation of FIG. 6a,

[0065] FIG. 6c is a detail view of the sectional representation from FIG. 6b,

[0066] FIG. 6d is a further detail view of the sectional representation from FIG. 6b,

[0067] FIG. 7a is a top view of the drawer frame without outer wall and with spacer part,

[0068] FIG. 7b is a sectional representation of FIG. 7a,

[0069] FIG. 7c is a detail view of the sectional representation from FIG. 7b,

[0070] FIG. 7d is a further detail view of the sectional representation from FIG. 7b,

[0071] FIG. 8a shows a further embodiment of the drawer frame in a representation with spacer part and without outer wall,

[0072] FIG. 8b shows a further embodiment of the drawer frame in a representation with spacer part and without outer wall, and

[0073] FIG. 9 shows a drawer with two double-walled drawer frames

DETAILED DESCRIPTION OF THE INVENTION

[0074] FIGS. 1a to 1h show various embodiments of arrangements of the at least one spacer part 4 and the at least one first protrusion 81 and the at least one second protrusion 82 in a view perpendicular to the plane of the outer wall 3 or the inner wall 2.

[0075] The at least one spacer part 4 is arranged between the inner wall 2 and the outer wall 3. An outer wall 3 (or an inner wall 2) is shown in each case in FIGS. 1a to 1h, wherein the outer wall 3 (or inner wall 2) shown is arranged below the at least one spacer part 4. The inner wall 2 (or outer wall 3), which is arranged above the at least one spacer part 4, is not represented in FIGS. 1a to 1h.

[0076] The at least one spacer part 4 can be clamped between at least one first protrusion 81 and at least one second protrusion 82.

[0077] In FIG. 1a a first protrusion 81 and a second protrusion 82 extend over the entire length of the inner wall 2 and/or the outer wall 3. Moreover, the first protrusion 81 and the second protrusion 82 are arranged on two opposite long sides of the inner wall 2 and/or the outer wall 3. The spacer part 4 extends over the entire width of the inner wall 2 and/or the outer wall 3.

[0078] In particular in an embodiment of this type the protrusions 81, 82 can also be used for the connection of the outer wall 3 and the inner wall 2. The protrusions 81, 82 can also form a front face of the double-walled drawer frame 1.

[0079] In FIG. 1b a first protrusion 81 and a second protrusion 82 are arranged parallel to the long side of the inner wall 2 and/or the outer wall 3. However, they are not arranged on two opposite long sides, but within the plane of the inner wall 2 and/or the outer wall 3.

[0080] In FIG. 1c a first protrusion 81 and a second protrusion 82 are arranged orthogonal to the long side of the inner wall 2 and/or the outer wall 3. However, they are not arranged on the short sides.

[0081] In FIG. 1d a first protrusion 81 and a second protrusion 82 are formed as an angle bracket. The spacer part 4 is held on two diagonally opposite corners.

[0082] In FIG. 1e a first protrusion 81 extends over the entire length of the inner wall 2 and/or the outer wall 3 and is arranged on a long side of the inner wall 2 and/or the outer wall 3. A second protrusion 82 is arranged parallel to the long side of the inner wall 2 and/or the outer wall 3 and is arranged within the plane of the inner wall 2 and/or the outer wall 3.

[0083] In FIG. 1f two spacer parts 4 are provided. A first spacer part 4 is clamped between a first protrusion 81, which is arranged on a first short side, and a second protrusion 82, which is aligned parallel to the first short side and arranged within the plane of the inner wall 2 and/or the outer wall 3. A second spacer part 4 is clamped between a first protrusion 81, which is arranged on a second short side, opposite the first short side, and a second protrusion 82, which is aligned parallel to the second short side and arranged within the plane of the inner wall 2 and/or the outer wall 3.

[0084] In FIG. 1g two first protrusions 81 are provided, which are formed as an angle bracket and hold the spacer part 4 on two opposite corners along a long side of the spacer part 4. A second protrusion 82 is arranged on a second long side of the spacer part 4.

[0085] In FIG. 1h two spacer parts 4 are provided. A first spacer part 4 is clamped between a first first protrusion 81, which extends over the entire length of the inner wall 2 and/or the outer wall 3 and is arranged on a long side of the inner wall 2 and/or the outer wall 3, and a second protrusion 82, which is aligned parallel to the long side and arranged within the inner wall 2 and/or the outer wall 3. A second spacer part 4 is clamped between a second first protrusion 81, which extends over the entire length of the inner wall 2 and/or the outer wall 3 and is arranged on an opposite long side of the inner wall 2 and/or the outer wall 3, and the second protrusion 82, which also holds the first spacer part 4.

[0086] FIGS. 2a to 2d show various embodiments of arrangements of the at least one spacer part 4 and the at least one first protrusion 81 and the at least one second protrusion 82 in a view parallel to the plane of the outer wall or the inner wall, in particular along a longitudinal direction of the drawer frame 1.

[0087] The at least one first protrusion 81 and/or the at least one second protrusion 82 project transversely from the inner wall 2 and/or the outer wall 3.

[0088] In FIG. 2a both the first protrusion 81 and the second protrusion 82 are arranged on the inner wall 2. In FIG. 2b both the first protrusion 81 and the second protrusion 82 are arranged on the outer wall 3. In FIG. 2c the first protrusion 81 is arranged on the inner wall 2 and the second protrusion 82 is arranged on the outer wall 3.

[0089] In FIGS. 2a to 2c the at least one spacer part 4 rests flat against the inner wall 2 and against the outer wall 3.

[0090] A preferably provided example is shown in FIG. 2d, in which the at least one spacer part 4, in the clamped state, is arranged at a distance A from an imaginary plane which is spanned by the points against which the outer wall 3 rests for connection to the inner wall 2. The distance A is preferably between 0.1 and 0.5 millimeters.

[0091] The points against which the outer wall 3 rests for connection to the inner wall 2 are arranged on the first protrusion 81 and on the second protrusion 82, between which the spacer part 4 is also clamped. The outer wall 3 is therefore connected to the inner wall via the at least one first protrusion 81 and the at least one second protrusion 82.

[0092] The outer wall 3, in the state when connected to the inner wall 2, is curved in the direction of the inner wall 2, with the result that the outer wall 3 or the inner wall 2 rests against the clamped at least one spacer part 4. A noise generation is thus prevented, despite the fact that the protrusions 81, 82 are taller than the spacer part 4.

[0093] FIGS. 3a to 6d show a preferred embodiment of a double-walled drawer frame 1.

[0094] In this embodiment the at least one first protrusion 81 and the at least one second protrusion 82 are connected firmly, in particular in one piece, to the inner wall 2 and in particular are made out of the same sheet metal part as the inner wall 2. The first protrusion 81 and the second protrusion 82 in each case form a front face of the long side of the drawer frame 1.

[0095] The outer wall 3 is connected to the inner wall 2 via the first protrusion 81 and the second protrusion 82.

[0096] The spacer part 4 can be made at least partially, preferably entirely, out of a foam, in particular a polyethylene foam, and is shaped substantially plate-like. A noise generation can thus be efficiently prevented.

[0097] In particular, FIGS. 3a to 4b show four steps for producing the double-walled drawer frame 1.

[0098] In FIG. 3a an inner wall 2 with two protrusions 81 and 82 and a spacer part 4 are provided.

[0099] In FIG. 3b the spacer part 4 is clamped between the first protrusion 81 and the second protrusion 82.

[0100] In FIG. 4a an outer wall 3 is arranged in a guide groove 51 in the first protrusion 81.

[0101] In FIG. 4b the outer wall 3 is arranged parallel to the inner wall 2 and connected to the inner wall 2. In particular, the outer wall 3 is arranged on the at least one first protrusion 81 and on the at least one second protrusion 82 and connected to the inner wall 2.

[0102] FIGS. 5a to 5c show further details regarding the movements which are necessary to connect the outer wall 3 to the inner wall 2.

[0103] In FIG. 5a the outer wall 3 is arranged on the inner wall 2.

[0104] In FIG. 5b the two walls 2, 3 are shifted relative to each other in a direction transverse to a longitudinal direction of the walls 2, 3, with the result that the outer wall 3 engages in a guide groove 51 in the first protrusion 81.

[0105] In particular, at least one guide ridge, which is arranged on the outer wall 3, is inserted in the at least one guide groove 51, which is arranged on the first protrusion 81. The at least one guide groove 51 grips around the at least one guide ridge.

[0106] Furthermore, in particular, at least one suspension ridge 62, which is arranged on the second protrusion 82, is inserted in at least one suspension groove 61, which is arranged on the outer wall 3. The at least one suspension groove 61 engages behind the at least one suspension ridge 62.

[0107] The suspension groove 61 and the guide ridge are arranged on two opposite long sides of the outer wall 3.

[0108] In FIG. 5c the two walls 2, 3 are shifted relative to each other in a direction parallel to a longitudinal direction of the walls 2, 3.

[0109] In particular, the at least one guide ridge is shifted in the at least one guide groove 51 in a direction parallel to a longitudinal direction of the walls 2, 3. Furthermore, in particular, the at least one suspension ridge 62 is shifted in the at least one suspension groove 61 in a direction parallel to a longitudinal direction of the walls 2, 3.

[0110] In short, the two walls 2, 3 are connected to each other in the course of the shifting movement.

[0111] FIG. 6b shows a section through the representation of FIG. 6a, which shows an inner wall 2 with a spacer part 4 arranged thereon.

[0112] A container rail 11 for the installation of the double-walled drawer frame 1, which is clearly visible in FIG. 6b, is provided in the area of the second protrusion 82.

[0113] FIG. 6c shows a detail view of the area of the first protrusion 81 against which the spacer part 4 rests.

[0114] The at least one first protrusion 81 has at least one guide groove 51 for guiding the outer wall 3, preferably wherein the at least one guide groove 51 is shaped as a substantially semicircular bend of a sheet metal part.

[0115] A guiding-in surface 53 for guiding the outer wall 3 in transverse to the longitudinal direction of the at least one guide groove 51 adjoins the at least one guide groove 51.

[0116] The spacer part 4, in the clamped state, rests against an end edge of the guiding-in surface 53.

[0117] The guide groove 51 and the guiding-in surface 53 are preferably shaped out of the same sheet metal part as the inner wall 2.

[0118] A guide ridge, which is arranged on the outer wall 3, can be inserted into the guide groove 51. The guide ridge is shaped as a substantially semicircular bend of a sheet metal part, preferably wherein the radius of the at least one bend of the guide groove 51 is larger than the radius of the at least one bend of the guide ridge. The guide ridge is made out of the same sheet metal part as the outer wall 3 or inner wall 2, preferably out of an end piece of the outer wall 3.

[0119] The double-walled drawer frame 1 can comprise at least one holding device 7 for holding the at least one guide groove 51 on the at least one guide ridge 52.

[0120] FIG. 6d shows a detail view of the area of the second protrusion 82 against which the spacer part 4 rests.

[0121] The second protrusion 82 has a stepped shape. The spacer part 4, in the clamped state, is arranged against the first step 91 starting from the inner wall 2. The first step 91 has a curvature 10, wherein the spacer part 4 rests against the curvature 10 of the first step 91.

[0122] The outer wall 3, in the state when connected to the inner wall 2, is arranged on the second step 92 starting from the inner wall 2.

[0123] Both steps 91 and 92 as well as the curvature 10 are made out of the same sheet metal part as the inner wall 2.

[0124] A suspension ridge 62 for suspending the outer wall 2 can be arranged on the second protrusion 82, in particular the second step 92. The outer wall 3 can have a suspension groove 61, as a counterpart, for suspending the outer wall 3 in the at least one suspension ridge 62. The at least one suspension groove 61 can be shaped as a bent end piece of the outer wall 3.

[0125] FIG. 7a shows a top view of the drawer frame 1 without outer wall 3 and with spacer part 4. In this view it is clearly visible that the spacer part 4 covers at least a quarter of the surface area of the inner wall 2.

[0126] FIG. 7b shows a section through FIG. 7a.

[0127] FIG. 7c shows a detail view of a part of the first protrusion 81 in the area against which the spacer part 4 rests. It is an end edge of the guiding-in surface 53 of the first protrusion 81.

[0128] FIG. 7d shows a detail view of a part of the second protrusion 82 in the area against which the spacer part 4 rests. The spacer part rests in particular against a curvature 10, wherein the curvature 10 is preferably arranged on a first step 91 of the second protrusion 82.

[0129] FIG. 8a shows an alternative embodiment of a drawer frame 1. In comparison with the embodiment from FIGS. 3a to 7d the drawer frame 1 is less wide and thus comparatively longer. Also in this embodiment a spacer part 4 is clamped between a first protrusion 81 and a second protrusion 82, wherein the first protrusion 81 and the second protrusion 82 are also formed for connection to the outer wall 3.

[0130] The spacer part 4 has a predetermined breaking point 18, preferably a perforation. The spacer part 4 can thereby be divided and drawer frames 1 with different dimensions can be used.

[0131] FIG. 8b shows an alternative embodiment with different dimensions. In particular, the drawer frame is formed shorter than and as wide as the one in FIG. 8a. The spacer part 4 from FIG. 8a is therefore too long for the drawer frame 1 from FIG. 8b, but has the appropriate width.

[0132] The spacer part 4 (from FIG. 8a) can be broken along the predetermined breaking point 18, in particular toollessly. A fraction of the spacer part 4 is used as the spacer part 4 in the following and clamped between the at least one first protrusion 81 and the at least one second protrusion 82. The fraction thus also fits in the drawer frame 1 of FIG. 8b.

[0133] FIG. 9 shows a drawer 14 comprising two double-walled drawer frames 1. The drawer 14 furthermore has a drawer bottom 15, a back wall 16 and a front panel 17.

LIST OF REFERENCE NUMBERS

[0134] 1 double-walled drawer frame [0135] 2 inner wall [0136] 3 outer wall [0137] 4 spacer part [0138] 51 guide groove [0139] 53 guiding-in surface [0140] 61 suspension groove [0141] 62 suspension ridge [0142] 7 holding device [0143] 81 first protrusion [0144] 82 second protrusion [0145] 91 first step [0146] 92 second step [0147] 10 curvature [0148] 11 container rail [0149] 12 front attachment [0150] 13 back attachment [0151] 14 drawer [0152] 15 drawer bottom [0153] 16 back wall [0154] 17 front panel [0155] 18 predetermined breaking point