drawer

Abstract

The invention relates to a drawer (1) comprising a bottom panel (2), two double-walled side frames (5) and a rear wall (3, 3') connecting the double-walled side frames (5), the double-walled side frames having an inner wall (51) and an outer wall (52), the rear wall being composed of a metal sheet at least in the edge region facing the double-walled side frames (5), wherein the rear wall (3) comprises a laterally bent tab (32, 32') at the edge facing the double-walled side frames (5), the bent tab (32, 32') abutting at least in certain regions against the outer side of the inner wall (51) of the double-walled side frames (5). A reinforcing section (20) of a support (10, 10') is fixed to the bent tab (32, 32'), which forms a U-shaped bend (14) in the region of the bent tab (32, 32') and has a free leg (12), which forms a fastening section (12) engaging between the inner wall (51) and the outer wall (52) of the double-walled side frames (5), thereby establishing a connection with the side frames (5). In this way, the rear wall (3, 3') can be fixed firmly in place in a simple manner.

Description

Technical Field

[0001] The present invention relates to a drawer comprising a bottom plate, two double-walled side frames having inner and outer walls, and a rear wall connecting the side frames, wherein the rear wall is made of a metal plate at least in the edge region facing the double-walled side frames, wherein the rear wall includes a laterally bent tab at the edge facing the double-walled side frames, wherein the bent tab abuts against the outer side of the inner wall of the double-walled side frames at least in certain areas. Background Technology

[0002] WO 2020 / 164959 A1 discloses a drawer in which the housing of an adjusting mechanism is fixed to the rear wall, through which a push rod can move vertically to adjust the drawer's tilt in its installed position. Lateral rings are also formed on the housing, and side frames are fixed to these lateral rings. This allows the housing to function as a connector between the side frames and the rear wall. However, the strength of this connection is limited, and deformation may occur if the rear wall is too thin. Summary of the Invention

[0003] Therefore, the object of the present invention is to provide a drawer whose rear wall is stably connected to the side frame by a support member.

[0004] The drawer according to claim 1 solves this problem.

[0005] In the drawer according to the invention, the reinforcing section of the support is fastened to a bent tab, forming a U-shaped bend in the area of ​​the bent tab and including a free leg, wherein the free leg forms a fastening section and engages between the inner and outer walls of the double-walled side frame, thereby forming a connection with the side frame. This design achieves a compact structure and efficient assembly.

[0006] Preferably, the laterally bent tabs of the rear wall are inserted into the channels of the U-shaped bend. This reinforces the lateral area of ​​the rear wall by angle, thereby improving the stability of the rear wall, and also allows for selective design of particularly thin profiles. The laterally bent tabs can be selectively fixed to the bent legs to increase rigidity.

[0007] The two legs of the U-shaped bend are preferably substantially parallel to each other. In this structure, the free leg facing away from the rear wall serves as a fastening section of the support, and its length should be longer than that of the leg facing the rear wall. The free leg facing away from the rear wall can engage with the side frame and be secured to the side frame by a fastening device. Optionally, the fastening section can abut against the inner surface of the outer wall of the side frame (at least in certain areas). A latching device or clamping connector can be provided on the side frame to secure the fastening section for easy assembly.

[0008] To achieve a particularly material-saving structure, the rear wall is made of a metal plate with a thickness of 0.3 mm to 1.2 mm (especially 0.4 mm to 1.1 mm). Preferably, the support member is also made of a metal plate with a thickness of 0.7 mm to 1.8 mm. Preferably, the support member is made of a metal plate, wherein the thickness of the metal plate is at least equivalent to the thickness of the rear wall metal plate; preferably, the thickness of the support member is greater than the thickness of the rear wall.

[0009] To ensure structural stability, the support member includes a first vertical section abutting against a first segment of the rear wall and a second vertical section abutting against a second segment of the rear wall, wherein these two sections are offset from each other. Preferably, a step is formed between the first and second vertical sections of the rear wall, such that the second vertical section is horizontally offset relative to the first vertical section. The support member may include a profile similar to that of the rear wall, and preferably, the rear wall also includes a vertical section disposed above the base plate, which is connected by a step to another vertical section disposed behind the base plate. This step can simultaneously reinforce the rear wall and the support section. Optionally, the base plate may also be formed into a U-shaped structure by the support section and / or the rear wall.

[0010] The support member preferably includes an upper bent tab, with the upper curved portion of the rear wall supported by the upper bent tab. The cross-section of the bent tab can be arbitrarily designed as an angle or a U-shape to reinforce the upper region of the rear wall.

[0011] The height of the rear wall can be higher than the side frame; in this case, the height of the support should also be higher than the fastening section. The height of the support can match the height of the rear wall. For tall drawers with side rails, it is preferable to provide a protruding retaining mechanism for securing the attachment in the area of ​​the upper part of the support facing the side frame; this device is fixed above the side frame. The attachment can be designed as a railing or frame attachment. A curved tab can be used as the protruding retaining mechanism; this tab preferably protrudes towards the front of the drawer through a U-shaped bend with legs.

[0012] To enhance functionality, an adjustment mechanism can be installed on the support member, allowing for vertical adjustment of the support element and thus adjustment of the tilt angle. For example, such an adjustment mechanism may include a rotating component, such as an eccentric shaft, involute shaft, or worm gear, allowing the support element (which can move on the housing or connector) to be displaced by rotation. Attached Figure Description

[0013] The present invention will now be described in more detail with reference to two embodiments and accompanying drawings. In the figures:

[0014] Figure 1A and Figure 1B Two views of the drawer according to the present invention;

[0015] Figure 2A and Figure 2B Figure 1 shows two exploded views of the back wall of the drawer and its connectors.

[0016] Figure 3A and Figure 3B Two perspective views of the rear wall with connectors in the assembled position;

[0017] Figures 4A to 4C Multiple views of the connector;

[0018] Figure 5A and Figure 5B Two exploded views of the improved rear wall with related connectors;

[0019] Figure 6A and Figure 6B Two views of the rear wall in the assembled position, as shown in Figure 5, with the connectors; and

[0020] Figures 7A to 7C Figure 5 shows multiple views of the connector. Detailed Implementation

[0021] Drawer 1 includes a bottom plate 2, a back wall 3, and a front panel 4. The back wall 3 and the front panel 4 are connected to each other by double-wall side frames 5. The double-wall side frames 5 include an inner wall 51 and an outer wall 52. Drawer 1 has a high front panel 4, which is fixed to opposite sides of the back wall 3 by rails 6 connected to connectors 10.

[0022] like Figure 2A and Figure 2B As shown in the exploded view, there are two support members 10 on the rear wall 3, which are used to fix the rear wall 3 to one of the side frames 5. The two support members 10 can be formed in a mirror-symmetric manner.

[0023] Each support member 10 includes a support section 11 that abuts against the rear wall 3 in at least certain areas and a fastening section 12 extending from the rear wall 3, the fastening section 12 being secured to the side frame 5. The fastening section 12 preferably engages with the side frame 5 and is secured in place by a fastening mechanism (particularly a locking mechanism). The fastening section 12 may at least partially abut against and provide support to the inner surface of the outer wall of the side frame 5.

[0024] Each support 10 is made of bent metal plate, particularly steel plate.

[0025] The support section 11 includes a first vertical section, the upper part of which is connected to the bent connecting piece 13, and the lower part is connected to a second vertical section 16 via a step 15. The second vertical section 16 is offset rearward in the horizontal direction. In the assembled position, the second vertical section 16 abuts against the corresponding vertical section 34 of the rear wall 3, and the rear wall 3 abuts against the rear side of the base plate 2.

[0026] The upper region of the rear wall 3 has an upper curved portion 31, which may be angular or U-shaped, and has a vertical section 30 that connects to a rearwardly projecting step 33, and has a second vertical section 34 as its connecting member. In the assembled position, the step 33 can abut against the base plate 2, and the vertical section 34 is arranged at the rear of the base plate 2. The second vertical section 34 may also include a lower horizontal tab 35, such that the rear of the base plate 2 is formed by the step 33, the second vertical section 34, and the horizontal tab 35.

[0027] The opposite ends of the rear wall 3 also include bent tabs 32, which may have multiple openings.

[0028] The support member 10 is conformable to the contour of the rear wall 3 in the region of the support section 11, which has a step 15 and an offset vertical section 16. The support section 11 is connected to the fastening section 12 via a U-shaped bend 14, and the fastening section 12 is fixed to the side frame 5. At least one curved strip-shaped reinforcing contour 121 is formed on the fastening section 12 for stable support. The U-shaped bend 14 forms a channel extending in the vertical direction into which the laterally bent tab 32 of the rear wall 3 is inserted. Above the bend 14, a bent tab 20 is formed on the support section 11. The tab 20 includes an opening aligned with the opening on the bent tab 32, which can be used for fastening devices of other components. A bent tab 21 is provided on the other side of the support section 11 for reinforcement.

[0029] Furthermore, the adjustment mechanism with housing 9 is connected to the support section 11, and the support element 8 is arranged on housing 9, allowing for vertical adjustment. The support element 8 is driven by a rotating component 7, which can be designed as an eccentric gear, involute gear, or worm gear, and is rotatably supported on the opening 17 of housing 9 and connector 10. For securing housing 9, connector 10 has an integrally formed latch-shaped retaining mechanism 18. Alternatively, other retaining mechanisms may be provided to secure housing 9.

[0030] Figure 3A and Figure 3B Two support members 10 on opposite sides of the rear wall 3 in the assembled position are shown. It can be seen that the bent tab 32 of the rear wall engages with the U-shaped bend 14, and the fastening section 12 formed on the longer leg of the U-shaped bend 14 protrudes forward. The housing 9 is at least partially arranged within the space enclosed by the vertical section 30, the bend 31 and the side tab 32.

[0031] Figures 4A to 4C The support member 10 is shown in detail, wherein Figure 4A The left support member 10 is shown and Figure 4B and Figure 4CThe right support member 10 is shown, which is mirror-symmetrical to the left support member 10 with respect to the center plane. Each support member 10 is made of sheet metal by stamping and bending, and includes a support section 11 integrally formed with a fastening section 12 via a U-shaped bend 14, wherein the U-shaped bend 14 has a vertical channel. A retaining mechanism 19 for fixing the railing 6 is also integrally formed with the fastening section 11 and includes another U-shaped bend, wherein the legs of the bend away from the rear wall 3 are used to fix the railing 6.

[0032] Figure 5A and Figure 5B An improved embodiment of a rear wall 3' that can be mounted on drawer 1 is shown. The height of the rear wall 3' is lower than that of the rear wall 3. The rear wall 3' includes a vertical section 30' having an upper curved portion 31, a lower step 33, and a second vertical section 34, the structure of which is the same as described for the rear wall 3. In addition, bent tabs 32' are formed on opposite sides.

[0033] The rear wall 3' can be connected to the side frame 5 via two improved support members 10', each support member 10' including a support section 11', the height of which is lower than the support member 10. The support section 11' is connected to the fastening section 12 via a U-shaped bend 14. The support members 10' are mirror symmetrical, so the rear wall 3' can be connected to the left and right side frames 5. Apart from this, identical parts use the same reference numerals, especially in the adjustment mechanism.

[0034] Figure 6A and Figure 6B The assembly state of the rear wall 3' and the support member 10' is shown. The height of the rear wall 3' is slightly higher than the height of the two fastening sections 12.

[0035] Figures 7A to 7C Only one support member 10' is shown, without any other components. Figure 7A The left support member 10' is shown, and Figure 7B and Figure 7C The right-side support member 10' is shown. An opening 17 is formed on the support section 11' for rotatably mounting the rotating component 7 of the adjustment mechanism. The support section 11' is externally connected to the fastening section 12 via a U-shaped bend 14, and internally provides a retaining mechanism 18 for fixing the housing 9. The rear step 15 and the second vertical section 16 are integrally formed with the fastening section 11'.

[0036] The height of the support members 10, 10' can be designed according to the height of the rear wall 3, 3'.

[0037] The rear wall 3,3' can also be composed of multiple parts. Crucially, the portion of the rear wall 3,3' in the area where the support members 10,10' are located is made of metal sheet. The central area of ​​the rear wall 3,3' can be made of other materials, such as wood or glass components.

[0038] Explanation of reference numerals in the attached figures

[0039] 1 Drawer; 2 Base plate; 3, 3' Rear wall; 4 Front panel; 5 Side frame; 51 Inner wall; 52 Outer wall; 6 Railing; 7 Rotating component; 8 Support element; 9 Housing; 10, 10' Support; 11, 11' Connecting piece; 12 Fastening section; 121 Reinforcing profile; 13 Connecting piece; 14 Bend; 15 Step; 16 Vertical section; 17 Opening; 18 Retaining mechanism; 19 Retaining mechanism; 20 Connecting piece; 21 Connecting piece; 30, 30' Vertical section; 31 Bend; 32, 32' Connecting piece; 33 Step; 34 Vertical section; 35 Connecting piece.

Claims

1. A drawer (1) comprising a bottom plate (2), two double-walled side frames (5), and a rear wall (3, 3') connected to the side frames (5), each side frame having an inner wall (51) and an outer wall (52), the rear wall being formed of a metal plate at least in its edge region facing the double-walled side frames (5), wherein the rear wall (3) includes laterally bent tabs (32, 32') at its edge facing the double-walled side frames (5); wherein the bent tabs (32, 32') at least in certain regions abut against the outer side of the inner wall (51) of the double-walled side frames (5); characterized in that, The reinforcing section (20) of the support member (10,10') is fastened to the bent tab (32), and the support member (10,10') forms a U-shaped bend (14) in the area of ​​the bent tab (32,32') and has a free leg (12), wherein the free leg (12) is formed with a fastening section (12) that engages between the inner wall (51) and the outer wall (52) of the double-wall side frame (5) and forms a connection with the side frame (5).

2. The drawer according to claim 1, characterized in that, The laterally bent tabs (32,32') of the rear wall (3,3') are inserted into the channel of the U-shaped bend (14).

3. The drawer according to claim 1 or 2, characterized in that, The two legs of the U-shaped bend (14) are roughly parallel to each other.

4. The drawer according to claim 3, characterized in that, The free leg (12) is longer than the leg facing the rear wall (3,3').

5. The drawer according to any one of the preceding claims, characterized in that, The support (10) is made of a metal plate, and the thickness of the metal plate is at least the same as the thickness of the metal plate of the rear wall (3,3').

6. The drawer according to any one of the preceding claims, characterized in that, The rear wall (3,3') is made of a metal plate with a thickness between 0.3 mm and 1.2 mm, particularly between 0.4 mm and 1.1 mm.

7. The drawer according to any one of the preceding claims, characterized in that, The support (10, 10') is made of a metal plate with a thickness between 0.7 mm and 1.8 mm.

8. The drawer according to any one of the preceding claims, characterized in that, The support member (10, 10') includes a first vertical section (11, 11') that abuts against a first section (30, 30') of the rear wall (3, 3') and a second vertical section (34) that forms a second section (34) of the rear wall (3, 3'), wherein the sections (30, 16) are offset from each other.

9. The drawer according to claim 8, characterized in that, A step (33) is formed between the first vertical section (30, 30') and the second vertical section (34) of the rear wall (3, 3'), such that the second vertical section (34) is staggered in the horizontal direction relative to the first vertical section.

10. The drawer according to any one of the preceding claims, characterized in that, The support member (10,10') includes an upper bent tab (13), and the upper bent portion (31) of the rear wall (3,3') is supported on the upper bent tab.

11. The drawer according to any one of the preceding claims, characterized in that, The height of the rear wall (3,3') is higher than that of the side frame (5), and the height of the support section (11) is higher than that of the fastening section (12) of the support member (10).

12. The drawer according to any one of the preceding claims, characterized in that, The support member (10) has a protruding retaining mechanism (19) formed on the upper region of the side facing the side frame (5) for securing the attachment (6) above the side frame (5).

13. The drawer according to any one of the preceding claims, characterized in that, The adjustment mechanism is fixed to the support (10,10'), and the support element (8) can be adjusted vertically via the adjustment mechanism for tilt adjustment.

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