WO2018153774A1

WO2018153774A1 - Adapter and method for assembling a drawer

Info

Publication number: WO2018153774A1
Application number: PCT/EP2018/053837
Authority: WO
Inventors: Andreas Stuffel; Johann-Sebastian Lessmann; Thomas Franke
Original assignee: Paul Hettich Gmbh & Co. Kg
Priority date: 2017-02-22
Filing date: 2018-02-15
Publication date: 2018-08-30
Also published as: DE102017103595A1; CN110234250A; EP3585210B1; EP3585210A1; CN110234250B

Abstract

The invention relates to an adapter (6) for fastening a bottom (2) to a side frame (5) of a drawer (1) for a piece of furniture, which adapter comprises a first groove-shaped receiving channel (9), into which a bottom (2) can be inserted between a first wall (13) and a second wall (14), at least one claw (10) protruding into the receiving channel (9) in order to fasten the bottom (2), a second groove-shaped receiving channel (8) being provided on the adapter (6), in which second groove-shaped receiving channel a rear wall (3) can be inserted by means of an edge region and can be fastened in clamping manner by means of at least one claw (11). The invention further relates to a method for assembling a drawer (1) having such an adapter (6).

Description

Adapter and method for assembling a drawer

The present invention relates to an adapter for fixing a floor to a side frame of a drawer for a piece of furniture, having a first groove-shaped receiving channel into which a bottom can be inserted between a first wall and a second wall, at least one claw protruding into the receiving channel to fix the floor, and a method of assembling a drawer.

DE 20 2014 104 925 U1 discloses a connecting device for two mutually angularly arranged wall elements of a movable furniture part, in which two mounting portions are provided, and one of the attachment portions is insertable into an opening of a wall element.

As a result, the wall elements can be fixed to each other, wherein the holding forces are rather low and it can cause rattling noises, if tolerances of one of the wall elements is arranged with play. In addition, with this connecting device, only a connection of two vertical walled elements is possible.

It is therefore an object of the present invention to provide an adapter for fixing a floor to a side frame of a drawer for a piece of furniture, which allows easy installation and reliable fixing of the bottom and the side frame.

In addition, a corresponding assembly method should be provided.

This object is achieved with an adapter having the features of claim 1 and a method having the features of claim 13.

According to the invention, the adapter element has a first groove-shaped receiving channel for fixing a bottom, and in addition a second groove-shaped receiving channel is provided on the adapter element, in which a rear wall with an edge region can be inserted and at least one claw is fixed by clamping. Thereby, both a bottom and a rear wall can be easily mounted on the adapter by the bottom is inserted into the first receiving channel and the rear wall in the second receiving channel. Such a joint connection is also in Automated production feasible. In addition, a stable fixation of the bottom and rear wall can be ensured by the at least one claw on each receiving channel. Preferably, the claws are each formed bendable and are clamped to the ground or the rear wall. In this case, the claws can be deflected elastically about an axis parallel to the longitudinal direction of the respective receiving channel in order to rest in the mounted position by clamping on the bottom or the rear wall.

For a stable ground or rear wall attachment, the claws may have one or more tips at the ends which may dig into the material. Since the floor or the rear wall are usually made of a wood material, for example an MDF or HDF board, the tips can dig into the corresponding material and prevent the floor or rear wall from being pulled out.

The first receiving channel is preferably bounded by an upper wall and a lower wall, and the claws are provided on the lower wall of the receiving channel and thus press the bottom from below against an upper wall of the first receiving channel. As a result, the positioning of the soil with respect to the upper surface is exactly predetermined, and thickness tolerances of the soil can be compensated by the elasticity of the claws.

Preferably, the claws are each aligned inclined to a wall of the receiving channel, wherein each receiving channel comprises two walls and a bottom wall. The claws are preferably web-shaped on one of the walls, wherein the angle of inclination between the claw and the wall in a range between 1 5 ° to 45 °, preferably 20 ° to 40 °, so that a pivoting of the claws during insertion of soil or back wall can be done. The inclination of the claws is aligned so that the tips are directed to a bottom wall of the respective receiving channel. In a further embodiment, the first and the second receiving channel have substantially the same width. As a result, identical plate-shaped material pieces with an identical width dimension can be used for the rear wall and the bottom, which simplifies production. Alternatively, for Floor and rear wall also different width plates or different materials are used.

The adapter is preferably made of a bent metal sheet, in particular of a single component. The two receiving channels are angularly aligned, in particular at right angles, wherein the receiving channel for the rear wall behind the end of the receiving channel for the bottom is arranged, so that the rear wall after assembly at least partially covers a rear end wall of the bottom.

The claws are preferably formed integrally with the adapter, wherein preferably a one-piece, bent metal part is used as material. However, the claws can also be designed as components that are separate from the adapter, and this can alternatively also consist of a material other than the adapter, for example a spring steel. For this purpose, the claws are determined by connecting means on the adapter.

In a drawer according to the invention, an adapter is preferably arranged in a side frame, on which a connecting portion is formed, on which a web of the side frame is fixed, so that it is stably fixed to the adapter.

In the method according to the invention, first a bottom is positioned on a first groove-shaped receiving channel and a rear wall on a second groove-shaped receiving channel of the adapter, and then the bottom is inserted into the first receiving channel and the rear wall is moved into the second receiving channel by a relative movement, preferably the insertion of floor and back wall simultaneously. For the assembly, both a movement of the adapter to the bottom and the rear wall and, conversely, a movement of the rear wall and the bottom to the adapter is possible, so that it depends only on the relative movement.

The invention will be explained in more detail with reference to several embodiments with reference to the accompanying drawings. Show it:

Figure 1 is a perspective view of a drawer according to the invention without front panel; Figure 2 is a perspective view of the drawer of Figure 1 during assembly;

Figure 3 is a detail view of the drawer of Figure 2; Figure 4 is a detail view of the corner of the drawer without side frame;

Figures 5 and 6 are two sectional views through the corner of the

Drawer of Figure 1; Figures 7A and 7B are two views of a modified drawer with an adapter according to the invention; Figure 8 is a detail view of the drawer of Figure 7 with mounted rear wall; Figure 9 is a perspective view of the corner region of another embodiment of a drawer; Figure 10 is a view of a side frame before mounting on a drawer;

Figures 1 1 A and 1 1 B two views of a drawer before mounting the bottom and rear wall;

Figures 12A and 12B show two views of the drawer according to Figure 1 1; Figure 13 is a perspective view of a drawer after assembly with pullout guide;

Figure 14 is a sectional view through the drawer of the figure

13;

Figure 15 is a view of a modified drawer with

Pullout guidance, and

Figure 16 is a perspective view of an adapter according to the invention. A drawer 1 comprises a plate-shaped bottom 2 and a plate-shaped rear wall 3, which are made, for example, of a wood material, such as an MDF or HDF board. On both sides of the bottom 2 side frames 5 are provided. A front panel on the opposite side to the rear wall 3 has been omitted in Figure 1. In the front region, the side frame 5 has a hollow chamber 4, on which a fastening mechanism for a front panel can be arranged. In Figure 2, a side frame 5 is removed from the bottom 2 and the rear wall 3. It can be seen that the bottom 2 is fixed on a rear adapter 6 and two further adapters 7. The side frame 5 comprises an outer wall 50, an upper edge 51 and an inner wall 52. In this case, the outer wall 50 projects beyond the inner wall 52 to the rear, as shown in Figure 3. The inner wall 52 is formed shorter, and the rear wall 3 is located with a front side on an end face of the inner wall 52, while the upper edge 51 and the outer wall 50 surround the end faces of the rear wall 3. In addition, the rear wall 3 is engaged behind the back of a wall 20 of the adapter 7.

The fixation of bottom 2 and rear wall 3 on the adapter 6 is shown in Figures 4 to 6. The adapter 6 of a bent metal sheet, in particular a steel sheet, comprises a first receiving channel 9, in which an edge of the bottom 2 is inserted. Furthermore, a second receiving channel 8 is provided at a right angle thereto and offset to the rear, the one

Border area of the rear wall 3 surrounds. At the first receiving channel 9 obliquely upwardly projecting claws 10 are formed on the lower wall 14, the clamping abut an underside of the bottom 2 and press the bottom 2 against an upper wall 13 of the receiving channel 9. Here, the upper wall 13 acts as an abutment against the elastic effect of the claws 10. In a similar manner, the rear wall 3 of claws 1 1 is fixed by clamping, the claws 1 1 are formed on a rear wall 20 of the receiving channel 8 and the rear wall 3 against pressing a wall 18, which is arranged relative to the drawer 1 on the front of the receiving channel 8. The adapter 6 is arranged in the side frame 5, wherein the outer wall 50 of the side frame 5 is connected to a bent web 53 on a connector 6 formed on the connecting portion 21 with the adapter 6, for example by gluing or welding. In this case, the connecting section 21 is not continuous on the longitudinal side of the adapter 6. forms, but only partially, preferably only as a connecting portion 21 in a central region of the respective adapter 6, wherein the width dimension is smaller than one third of the total width of the adapter 6. An inner wall 52 of the side frame 5 is angled toward the bottom 2 and clamped between an upper side of the bottom 2 and the upper wall 13 of the receiving channel 9, so that the adapter 6 also serves to fix the side frame 5.

FIGS. 7A and 7B show an embodiment in which, instead of a plate-shaped rear wall 3 made of a wood material, a modified one

Rear wall 3 'is mounted from a bent sheet steel to the adapter 6. The other components of the drawer 1 are unchanged, in particular, the adapter 6 is formed as in the previous embodiment. The rear wall 3 'engages with an end portion in the receiving channel 8 of the adapter 6, but there is fixed due to the much smaller thickness with an additional clamping element 30, as shown in Figure 8. The clamping element 30 is rod-shaped, and inserted into the receiving channel 8, so that the claws 1 1, the clamping member 30 and an edge of the rear wall 3 'in the receiving channel 8 fix by clamping. Here, the clamping element 30 may be positively connected both with the rear wall 3, and be enclosed loosely. The clamping element 30 can thus be used to compensate for thickness differences on the rear wall.

9 shows an alternative embodiment of a rear wall 3 "which is fixed to the adapter 6 without an additional clamping element 30. For this purpose, the rear wall 3" is bent in a U-shape at the front end 31 and comprises a leg 32 which has a trough-shaped profiling 33, in which the claw 1 1 of the receiving channel 8 engages. As a result, the rear wall 3 "can be fixed in the receiving channel 8 in a clamping manner by means of the claw 1 1 through the U-shaped bent end.

For the installation of a drawer, a side frame 5 is positioned on a holder 40, as shown schematically in FIG. The angle-shaped holder 40 comprises a plurality of holding elements 41 distributed in the longitudinal direction of the side tenzarge 5, which have one or more web-shaped swords 42 which can be inserted between the outer wall 50 of the side frame 5 and a bottom wall 1 2 of the receiving channel 9 on the adapter 6 and 7 are. The distance dimension of the web-shaped swords 42 is chosen so that it is equal to or slightly larger than the width dimension of the connection ab- Section 21. The adapters 7 are formed like the adapter 6, except for the region of the rear receiving channel 8, which is missing at the adapters 7. The rear retaining element 41, that which faces the rear wall 3, also has an additional web-shaped sword 43, which has wider dimensions in width and in height than the remaining swords 42. Whose height is adjusted according to the height of the rear wall 3, so that in the joining process during assembly, a pressure on the region of the projecting into the receiving channel 8 claws 1 1 can be exercised. As shown in FIGS. 11A, 11B and 1A2B, to install the drawer, a floor 2 is adjacent to the receiving channels 9 on the adapters 7 and 6, and a rear wall 3 adjacent to the receiving channels 8 on opposite adapters 6 positioned. By a relative movement between the adapters 6 and 7 and the bottom 2 and the rear wall 3 can each be an edge portion of the bottom 2 and the rear wall 3 are inserted into the receiving channels 8 and 9, wherein in the illustrated embodiment, the holder 40 with the adapters 6 and 7 are moved and the bottom 2 and the rear wall 3 can remain stationary. It is of course also possible to reverse the movement and to move the bottom 2 and the rear wall 3 or to move both relative to each other. Preferably, the relative movement between the adapters 6 and 7 and the bottom 2 and the rear wall 3 takes place simultaneously and preferably in an automated production. Likewise, assembly in successive assembly steps in automated or manual production is possible. During this assembly movement, the web-shaped swords 42 on the holders 40 provide the necessary contact pressure to push the edges of the bottom 2 and the rear wall 3 into the receiving channels 8 and 9. For this purpose, web-shaped swords 42 each comprise a connection section 21 formed on the adapter 6. By inserting the web-shaped swords 42 and the larger-sized sword 43 a spatial separation between the outer wall 50 and the adapter 6 is further effected, so that no damage to the serving as a visible surface outer wall 50 by the impressions of the bottom 2 in the receiving channel 9 can occur. In this case, the claws 10 and 1 1, which are aligned at an angle to the bottom of the receiving channel, are elastically bent, and thus ensure a clamping fixation of the bottom 2 and rear wall 3.

It is of course also possible for the mounting, the side frames 5 by pressure on the respective outer wall 50 on the bottom 2 and rear wall 3 auf- slide. In such a case can be dispensed with the connecting portion 21, whereby the outer wall 50 comes directly to the adapter 6 to the plant. In Figure 1 3, a drawer 1 is shown, are mounted in the bottom 2 and rear wall 3 on the side frames 5, wherein the adapters 6 and 7 are not visible in the mounted position from the front. In addition, a pull-out guide 60 was mounted on the side frames 5, which has a bracket 61 which is fixable to a furniture body or carcass of a household appliance.

In Figure 14 is a section through the drawer 1 is shown, from which the arrangement of the pullout guide 60 and the bottom 2 can be seen. The pullout guide 60 includes an upper track 62 on which an underside of the bottom 2 is supported. The running rail 62 is movable via rolling elements and a center rail on the stationary guide rail, which is formed integrally with the mounting bracket 61. The adapter 6 fixes an edge of the bottom 2 through the receiving channel 9, wherein the claws 10 press the bottom 2 from below by clamping against an upper wall 1 3 of the receiving channel 9, wherein between the upper wall 1 3 and the top of the bottom 2 is still a Angled web 54 of the inner wall 52 of the side frame 5 is fixed. The side frame 5 is fixed to the outer wall 50 at a connecting portion 21 of an angled web 53, so that the adapter 6 also serves to fix the side frame 5. In Figure 1 5, a modified embodiment of a drawer is shown in the side area, in which the drawer guide 60 is no longer located below the bottom 2, but within the side frame 5. For this purpose, the side frame 5 has a hollow chamber which is slightly wider, so that the upper edge 51 'is wider than in the previous embodiment. In addition, the outer wall 50 of the side frame 5 is no longer connected to the adapter 6, but with a connecting element 65 which rests on the running rail of the pullout guide 60. As a result, the pullout guide 60 is arranged in a specially protected manner. Incidentally, the bottom 2 is fixed in the receiving channel 9 and the rear wall 3 in the receiving channel 8 of the adapter 6, as described above.

In Figure 1 6, the adapter 6 is shown in detail. The adapter 6 comprises a receiving channel 9 for the bottom 2, on which two web-shaped claws 1 0 protrude at an angle, the end have several tips 1 6, which are in the Ma material of the soil 2 can dig. The claws 10 are aligned with a bottom wall 12 of the receiving channel 9, which is formed between the upper wall 13 and the lower wall 14. On the lower wall 14, a vertical web 15 is formed, on which the claws 10 are formed. On the bottom wall 12 of the receiving channel 9, an embossment for forming a connecting portion 21 is provided, on which the outer wall 50 of the side frame 5 can be fixed.

The adapter is manufactured as a one-piece, bent metal part, wherein the lower receiving channel 9 is formed integrally with a wall 17, which is followed by the receiving channel 8 for fixing the rear wall 3 at the rear. The receiving channel 8 comprises a front wall 18 and a rear wall 20, which are connected to each other via a bottom wall 19, which is stepped and forms a stop for an end face of the rear wall 3. At the rear wall 20 claws 1 1 are formed, which are also web-shaped and inclined to the bottom wall 19 aligned. At the claws 1 1 also several tips 1 6 are formed.

The claws 10, 1 1 can also be designed as a separate components to the adapter 6, which may alternatively consist of a different material than the adapter 6, for example, a spring steel. For this purpose, the claws are fixed by connecting means on the adapter 6.

LIST OF REFERENCE NUMBERS

1 drawer

2 floor

3, 3 ', 3 "rear wall

4 hollow chamber

5 side frame

6 adapters

7 adapters

8 receiving channel

9 recording channel

10 claw

1 1 claw

12 bottom wall

13 wall

14 wall

15 footbridge

1 6 tip

17 wall

18 wall

19 bottom wall

20 wall

21 connecting section

30 clamping element

31 end

32 thighs

33 profiling

40 holders

41 retaining element

42 sword

43 sword

50 wall

51, 51 'edge

52 wall

53 footbridge

54 footbridge

60 pullout guide

61 bracket

62 track rail

65 connecting element

Claims

claims

1 . Adapter (6) for fixing a floor (2) to a side frame (5) of a drawer (1) for a piece of furniture, having a first groove-shaped receiving channel (9) into which a bottom (2) between a first wall (13) and a second wall (14) can be inserted, wherein at least one claw (10) protrudes into the receiving channel (9) in order to fix the bottom (2), characterized in that a second groove-shaped receiving channel (8) is attached to the adapter (6) is provided, in which a rear wall (3) with an edge region insertable and at least one claw (1 1) can be fixed.

2. Adapter according to claim 1, characterized in that the claws (10, 1 1) are each formed bendable and clamping to the bottom (2) and / or the rear wall (3) can be applied.

3. Adapter according to claim 1 or 2, characterized in that the

Claws (10, 1 1) during the insertion of the bottom (2) and / or the rear wall (3) are elastically deflectable.

4. Adapter according to one of the preceding claims, characterized in that the first receiving channel (9) by an upper wall (13) and a lower wall (14) is limited and the at least one claw (10) for fixing the bottom (2) is provided on the lower wall (14) of the first receiving channel (9) and presses the bottom (2) against an upper wall (13) of the first receiving channel (9).

5. Adapter according to one of the preceding claims, characterized in that the claws (10, 1 1) end one or more tips (1 6).

6. Adapter according to one of the preceding claims, characterized in that the claws (10, 1 1) inclined to a wall of the receiving channel (8, 9) extend, in particular at an angle between 15 ° to 45 °, preferably 20 ° to 40 °.

7. Adapter according to one of the preceding claims, characterized in that the claws (10, 1 1) each to a bottom wall (12, 19) of the groove-shaped receiving channels (8, 9) are directed.

8. Adapter according to one of the preceding claims, characterized in that the first and the second receiving channel (8, 9) have substantially the same width.

9. Adapter according to one of the preceding claims, characterized in that the adapter (6) and the claws (10, 1 1) is formed in several parts.

10. Adapter according to one of the preceding claims, characterized in that in the longitudinal direction of the first or second receiving channel (8, 9) each have a plurality of claws (10, 1 1) are provided.

1 1. Drawer (1) having a bottom (2), a rear wall (3) and two side frames (5), characterized in that the rear wall (3) and the bottom (2) with an adapter (6) defined according to one of the preceding claims are.

12. drawer (1) according to claim 1 1, characterized in that on the adapter (6) has a connecting portion (21) is formed, on which a web (53) of the side frame is fixed.

13. A method for assembling a drawer (1) with an adapter (6) according to any one of the preceding claims, characterized in that a bottom (2) adjacent to the first groove-shaped receiving channel (9) and a rear wall adjacent to the second groove-shaped receiving channel ( 8) are positioned and the bottom (2) by a relative movement to the adapter (6) in the first receiving channel (9) and the rear wall (3) by a relative movement to the adapter (6) in the second receiving channel (8) are inserted ,

14. The method according to claim 13, characterized in that the insertion of the bottom (2) and the rear wall (3) takes place simultaneously.