drawer

Abstract

A drawer (1) includes a base plate (2), two side frames (4), and a rear wall (3, 3') providing a connection between the side frames (4), the rear wall (3, 3') being made of a curved metal material at least at its ends. The rear wall (3, 3') forms a generally first vertical wall section (30, 30') with a generally horizontal bend (31, 31') connected to its upper side and a step (32, 32') provided on its lower side, the step having a generally second vertical wall section (300, 33'), wherein the second vertical wall section (300, 33') is horizontally spaced from the first vertical wall section, and the step (32, 32') surrounds the rear edge of the base plate (2). An adjustment device for tilting the drawer (1) relative to the running track (7) of the pull-out guide includes supports (8, 40, 70) arranged on a first vertical wall section (30, 30'), and adjusting elements (15, 50, 80) fixed to the supports (8, 40, 70) in a movable or pivotable manner. The adjusting elements can be driven by rotating parts (20, 60, 76) fixed to the supports (8, 40, 70). The adjusting elements (15, 50, 80) include adjusting feet (16, 54, 88) that can be supported on the running track (7) of the pull-out guide and are arranged horizontally next to the steps (32, 32') but not inside the steps (32, 32').

Description

Technical Field

[0001] The present invention relates to a drawer comprising a bottom, two side frames, and a rear wall connecting the side frames, the rear wall being made of bent metal sheet at least at both ends and having a generally first vertical wall section, the upper side of which is connected to a generally horizontal bend, and the lower side of which is connected to a step with a generally second vertical wall section, wherein the second vertical wall section is horizontally spaced from the first vertical wall section, and the step surrounds the rear edge of the bottom. The drawer further includes an adjustment device for tilting the drawer relative to a pull-out guide track, the adjustment device including a support member arranged on the first vertical portion, the adjustment element being movably or pivotally fixed to the support member, the adjustment element being actuated by a rotating component fixed to the support member. Background Technology

[0002] WO 2020 / 164959 A1 discloses a drawer with an adjustment device on its rear wall for adjusting the drawer's tilt angle relative to a track of a pull-out guide. For this purpose, the housing of the adjustment device has a movable push rod, which can be adjusted via an eccentric wheel on a rotating component. The push rod is supported on the track directly or via a pin, thereby passing through an opening or recess in the lower part of the rear wall to guide the weakening of the rear wall. Furthermore, the bottom is not fixed to the rear wall, so the bottom can bend significantly under stress. Summary of the Invention

[0003] Therefore, the object of the present invention is to provide a drawer with a stable structure and easy assembly, and an adjustment device for tilt adjustment.

[0004] This problem is solved by a drawer having the features described in claim 1.

[0005] In the drawer according to the invention, an adjustment device is provided for tilting the drawer relative to the running track of a pull-out guide. The adjustment device includes a support member arranged on a first vertical wall section, and an adjustment element is movably or pivotally fixed to the support member. The adjustment element is actuated by a rotating component on the support member. The adjustment element includes an adjustment foot that is supported on the track of the pull-out guide and is horizontally adjacent to but not within a step. The rear wall includes a first generally vertical wall section and a second generally vertical wall section, the second generally vertical wall section being horizontally separated from the first vertical wall section by a step, wherein the step includes a rear edge at the bottom. Therefore, the adjustment foot does not penetrate the material of the rear wall at openings or recesses, but is arranged adjacent to the rear wall, particularly near the rear wall step at the bottom. This allows the drawer to have a stable structure in the rear wall area, and the tilt can be adjusted by rotating the adjustment element via a rotating component, thereby enabling easy operation.

[0006] The rear wall is made of bent metal plates at least at both ends and includes a generally horizontal bend on the upper side of the first generally vertical wall section. Preferably, a support is fixed between the horizontal bend and the step. The horizontal bend and the step form a receiving space on the rear wall for accommodating adjustment devices, thereby achieving a compact design.

[0007] To ensure structural stability, the rear wall has a folded wall section on its side at the end region, the folded wall section extending at least a portion of the rear wall height. Optionally, the folded wall section extends substantially perpendicular to the rear wall. In this case, the side wall section can be securely connected to the inclined support section of the support member.

[0008] Preferably, the second vertical wall section extends at least a portion of the bottom height, particularly extending completely to the bottom height, and optionally is securely connected to the inclined section of the support.

[0009] The fixed connection between the rear wall and the support can be achieved through mechanical fastening methods such as rivets, riveting, welding, screws, or other means. The connection between the support and the rear wall in this area has high rigidity.

[0010] To achieve a compact design, the rotating component can be fixed between the horizontal bend and the step, with at least a portion of the longitudinal extension of the rotating component located within the enclosed space between the horizontal bend and the rear wall step.

[0011] To provide good support for the adjusting element, the adjusting element may include a plate-like section that is movable along a sliding surface of a support member or a sliding surface on a support body disposed on the support member. Therefore, horizontal forces can be transmitted through this plate-like section and the sliding surface.

[0012] In a preferred embodiment, a step on the bent metal plate is formed as a groove, into which the rear edge of the bottom is inserted. The step thus forms the upper part of the groove and a second vertical wall section, with the bottom abutting against at least a portion of the groove. In the vertical section of the step, the rear end of the bottom can be securely attached to the rear wall. For example, a fixed connection can be established by screws or a mechanical interlocking mechanism. As the metal plate is further bent to form the groove, the rear edge of the bottom is covered in a U-shape over at least a portion of the length of the rear wall. This covering, more specifically, the fixed direct connection between the rear wall and the bottom, prevents or minimizes deformation of the bottom.

[0013] For ease of adjustment, the rotating component can be operated from the front and, in particular, from the rear via an opening on the rear wall. This allows the installer to decide whether to adjust the rotating component using tools from the front or rear side of the rear wall. Preferably, the tool insert in the rotating component can be accessed from both sides and is formed, for example, as a tool channel.

[0014] To reinforce the rear wall, the support is preferably made of a curved metal plate, or comprises curved metal plate segments. The support is preferably able to fit snugly against the rear wall to provide support. The support may include a stepped profile adapted to the rear wall contour and fit snugly against the rear wall in the curved areas. Optionally, the upper bend may also be supported by this support.

[0015] In a preferred embodiment, the support member is securely connected to a second vertical wall section of the rear wall (formed at the step) and a side wall section of the rear wall. The corresponding fixed connection can be achieved, for example, by riveting, welding, screwing, or other methods. The fixed connection can be achieved using the same method on both sections, or different methods can be used. The connection between the support member and the various sections on different planes of the rear wall achieves particularly high rigidity.

[0016] In another embodiment, the support includes a plastic body comprising a fixed portion fixed to the support and an integrally formed movable portion that serves as an adjustment element. In this embodiment, the adjustment element is preferably connected to the fixed portion via flexible tabs (particularly two parallel flexible tabs). This allows the adjustment device to be manufactured with only a few components. Another advantage is that these tabs are generally flexible only in the height direction, while being very rigid in the lateral and pull-out directions, thus preventing rattling noises when moving the component.

[0017] The rotating component preferably includes an eccentric wheel, a worm gear, or an involute structure. The rotating component is preferably rotatably supported on a bearing and the adjusting element can be adjusted via the eccentric wheel, worm gear, or involute structure. The eccentric wheel or involute structure may include an adjusting surface, thereby enabling stepped adjustment.

[0018] To securely fasten the rear wall to the side frame, the support may include a side cantilever that is fixed to one of the side frames and preferably engaged with the side frame. Attached Figure Description

[0019] The present invention will now be described in more detail with reference to several embodiments and accompanying drawings. The drawings are as follows:

[0020] Figure 1A and Figure 1B Two views of the drawer according to the invention are shown;

[0021] Figure 2A and Figure 2B Two views of the back wall of the drawer shown in Figure 1 are shown;

[0022] Figure 3 An exploded view of the rear wall shown in Figure 2 is presented;

[0023] Figure 4A and Figure 4B Two views of the adjustment device for the rear wall shown in Figure 2 in the first position are shown;

[0024] Figure 5A and Figure 5B Two views of the adjustment device for the rear wall shown in Figure 2 in the second position are shown;

[0025] Figure 6 A view of the improved rear wall is shown;

[0026] Figure 7A and Figure 7B It shows Figure 6 The rear wall adjustment device is shown in two detailed views in the first and second positions.

[0027] Figure 8 An exploded view of the regulating device shown in Figure 7 is shown;

[0028] Figure 9 A view of the support member used for the adjustment device shown in FIG7 is shown;

[0029] Figure 10 A view of the adjusting element of the actuation device shown in Figure 7 is illustrated.

[0030] Figure 11 An exploded view of the improved regulating device is shown;

[0031] Figures 12A to 12C It shows Figure 11 Views of the adjustment device in different positions;

[0032] Figure 13 A perspective view of the improved rear wall is shown. Detailed Implementation

[0033] Drawer 1 includes a base plate 2, a front panel 5, and two side frames 4 connecting the front panel 5 to the rear wall 3. Drawer 1 is equipped with a pull-out guide, which consists of a fixed guide rail 6 and a movable running rail 7. Drawer 1 is fixed to the pull-out guide. Optionally, an intermediate rail extending in the pull-out direction can also be provided between the fixed guide rail 6 and the running rail 7.

[0034] Figure 2A The rear wall 3 is shown in detail. The rear wall 3 is made of a curved metal plate (specifically, a steel plate) and includes a horizontal bend 31 on its upper side and a first vertical wall section 30 with an inclined step 32 formed on its bottom surface. The step 32 is formed by at least the upper bend 320 and a second vertical wall section 300. Furthermore, the step 32 forms part of a recess 33, the bottom of which is arranged relative to the first vertical wall section 30. The recess 33 includes a lower tab 34, which, in the assembled position, engages below the edge of the plate-shaped base plate 2. The edge of the base plate 2 can be inserted into the recess 33.

[0035] On opposite sides of the rear wall 3, there are support members 8 for adjusting the tilt of the drawer 1. The support member 8 is provided with an angled cantilever 9, which is fixed to and engaged with the corresponding side frame 4.

[0036] like Figure 3As shown, the adjustment device includes a support member 8, which is formed by a support plate 10. A support body 14 is arranged on the support member 8. The support member 8 is made of a metal plate. The support body 14 can be made of plastic or other materials. The support plate 10 includes a third vertical wall section 100, which has an opening 19 that abuts against a first vertical wall section 30 of the rear wall. The upper side of the support plate 10 has a bend 11 in at least some areas, which is inserted below the horizontal bend 31 of the rear wall 3. A step 12 and a fourth vertical wall section 13 are formed on the lower side of the support plate 10. The fourth vertical wall section 13 preferably abuts against the second vertical wall section 300 at the step 32 of the rear wall 3, thereby reinforcing the rear wall 3 in the area where the support plate 10 is located by the support plate 10. The fourth vertical wall section 13 of step 12 is securely connected to the second vertical wall section 300, which reinforces the recessed base 33. A support body 14 is fixed to the support plate 10 and forms a pivot support for a rotating component 20, which drives an adjusting element 15. The adjusting element 15 is made of a metal plate and includes an opening 17 through which the rotating component 20 enters. Two curved tabs 18 are respectively arranged on opposite sides of the opening 17, and the rotating component 20 is fixed between these two tabs. The adjusting element 15 includes a lower edge formed as an adjusting leg 16, which is supported on the upper side of the running track 7. Optionally, additional components may also be fixed to the adjusting leg 16 that engages with the running track 7.

[0037] Adjustment devices are provided at opposite end regions of the rear wall 3, wherein openings 36 are formed in the first vertical wall section 30 region of the rear wall 3, and these openings 36 are aligned with openings 19 for engaging the rotating tool of the rotating component 20.

[0038] The chamfered wall section 35 on the side of the rear wall is firmly connected to the inclined support section 91 on the cantilever 9 of the support member 8.

[0039] Figure 4A and Figure 4B It shows Figure 3 The first position of the adjustment device is shown. The rotating component 20 includes a cylindrical section 21, which is fixed by a rotational support of the support body 14. Furthermore, the rotating component 20 includes an involute structure 23 located on the disc-shaped body, the upper and lower sides of which abut against the curved protrusions 18 of the adjusting element 15. By rotating the rotating component 20, the position of the adjusting element 15 relative to the support member 8 can be adjusted.

[0040] Figure 5A and Figure 5BThe position of the rotating component 20 after rotating 180° is shown, and it can be seen that the adjusting element 15 has been adjusted downwards. Therefore, when the adjusting foot 16 contacts the running track 7, the support 8 and the rear wall 3 will rise. By continuing to rotate the rotating component 20, the lowered position shown in Figure 4 can be reached again.

[0041] The rotating component 20 includes a tool insert 22 that can be inserted from the front and rear sides of the rear wall 3. This is because the tool insert 22 is formed as a continuous channel, so that tools can be inserted into the rotating component 20 from both sides.

[0042] Figure 6 An improved embodiment of the drawer is shown, wherein a rear wall 3 extends between two side frames 4. Two adjustment devices are arranged on the rear wall, including a support 40 and an adjustment element 50 movable relative to the support 40.

[0043] Figure 7A The adjustment mechanism on one side of the drawer is shown in detail. The adjustment element 50 includes multiple protrusions 51 that engage with a rotating member 60, allowing the adjustment element 50 to be adjusted relative to the support member 40. The adjustment element 50 includes an adjustment foot 54 that rests on the top of the running track 7. The adjustment mechanism includes a bracket 40 made of sheet metal that abuts against the rear wall 3 in the region of the first vertical wall section 30 and at least partially conforms to the contour of the rear wall 3, particularly in the step 32 region, as the support member 40 includes a corresponding step 43 that abuts against both the top and the vertical wall section. The lower vertical wall section 44 of the support member 40 abuts against the second vertical wall section 300 of the rear wall 3. Multiple guide tabs 45 are integrally formed on the support member 40 for movably guiding the adjustment element 50. The guide tabs 45 may also have different shapes and form guide sections.

[0044] Figure 7B The position of the adjusting device is shown when drawer 1 is in the raised position relative to the running track 7. Adjusting feet 54 support the running track 7, and by rotating the rotating component 60, the adjusting element 50 moves downward to raise drawer 1. The adjustment range of the adjusting device can be, for example, from 2 mm to 10 mm, particularly from 3 mm to 8 mm.

[0045] Figure 8The adjustment device in Figure 7 is shown in detail. The support member 40 includes an integrally formed guide tab 45 and two slotted openings 46 for guiding the adjustment element 50. An opening 41 is provided between the guide tabs 45, within which the rotating member 60 can rotate. The rotating member 60 includes a worm gear 61 containing a tool insert 62. When the adjustment element 50 is in the middle or upper position, the tool insert 62 can be contacted from the rear through the opening 52 in the adjustment element 50; and it can also be contacted from the front of the rear wall 3 through the opening 41. The adjustment element 50 includes a slot 56 surrounded by the U-shaped profile of the adjustment element 50 and for receiving the rotating member 60. A wing with a guide tab 55 extends outward from the U-shaped profile, the guide tab forming a sliding section and engaging with the rear of the guide tab 45. The adjusting element 50 also has a step 53, on which the adjusting foot 54 is connected. In the assembled position, the adjusting foot 54 is adjacent to the vertical wall section 44 of the support 40.

[0046] Figure 9 The support member 40 is shown as viewed from the other side. The upper region of the support member 40 includes an upper bend 42, which can selectively fit onto the upper bend 31 of the rear wall 3. Furthermore, the side cantilever 9 for fixing to the side frame 4 is integrally formed with the support member 40.

[0047] Figure 10 The adjusting element 50 is shown, and its side facing the support member 40 includes a protrusion 51 that engages with the worm gear 61 of the rotating member 60. Additionally, a protrusion 57 is provided on the wing, which engages with the slotted opening 46 of the support member 40 to guide vertical movement. The adjusting element 50 has an inclined tab 59 acting as a stop, arranged between two guide tabs 45. This allows the rotating member 60 to limit the adjustment stroke. The tab 59 is arranged between two guide tabs 58 of the adjusting element 50, which form a sliding section.

[0048] Figure 11Another embodiment of the adjustment device is shown, which includes a support member 70 made of a metal plate. The support member 70 includes a cantilever 9 for connection to the side frame 4. An opening 71 is formed in the plate-like section of the support member 70 for rotatably mounting a rotating component 76, wherein the support member 70 is adapted to the contour of the rear wall 3 and includes a step 74 and a lower vertical section 75 that can contact the step 32 of the rear wall and the second vertical wall section 300. Two integrally formed tabs 73 are provided on the plate-like support member 70, which protrude from the support member 70 and engage with a component 82 of the plastic body. The plastic body includes an adjustment element 80 movable relative to the component 82, which is securely fixed to the support member 70. For this purpose, the component 82 is connected to the adjustment element 80 by two flexible tabs 83. Optionally, only one or more tabs may be used for connection. The elongated component 82 and the adjustment element 80 form a step and can abut against two offset vertical regions on the support member 70 and the section 75.

[0049] The adjusting element 80 has an elongated hole 81 through which the rotating component 76 can pass. The rotating component 76 includes an eccentric wheel 77 and a cylindrical component 78 with a tool insert 79. When the rotating component 76 rotates, the adjusting element 80 is guided on the cylindrical component 78, thereby enabling it to move through the elongated hole 81.

[0050] Figure 12A The raised position of the adjustment device is shown, with the adjustment foot 88 positioned in the low position and supported by the upper side of the running track 7 in the mounting position. The tab 83 between component 82 and adjustment element 80 is angled to the horizontal plane. The rotating component 76 includes a protruding stop 85 that abuts against the protrusion 86, thereby preventing the rotating component 76 from continuing to rotate counterclockwise. If the tool is engaged with the tool insert 79, the rotating component 76 can be rotated clockwise, for example, to [the desired position]. Figure 12B The position is shown. By rotating the rotating component 76, the eccentric wheel 77 adjusts the adjusting element 80 relative to the support 70, and the connecting piece 83 is horizontally aligned. The rotating component 76 can now be rotated clockwise to lower the position of the drawer 1 relative to the running track 7.

[0051] Figure 12C The lowered position is shown, where the bottom surface of the adjusting foot 88 is approximately at the same height as the lower edge of the support 70. The tab 83 is at an angle to the horizontal plane, and the rotating component 76 and the stop 85 abut against another protrusion 87.

[0052] The support member 70 includes an upper bend 72, which, as in the previous embodiment, can selectively contact the bend 31 of the rear wall 3.

[0053] Figure 13Another embodiment of the rear wall 3' is shown, which is not entirely made of sheet metal, but only at its two ends. The two ends 38 of the rear wall 3' are connected to each other by wall segments 39, which may be made of a different material than the ends 38. The ends 38, made of bent sheet metal, include an upper horizontal bend 31' and a lower step 32', forming a vertical wall segment 30' between them. The ends 38 are provided with openings to allow rotation of the rotating components 20, 60, and 76 using tools. A vertical wall segment 33' is formed on the bottom surface of the step 32', which may also be selectively shaped into a groove to engage with the edge of the base plate 2.

[0054] The above embodiments can be combined with each other as needed. For example, the rotating components in each embodiment can be selectively configured as eccentric wheels, involute structures, or worm gears.

[0055] Explanation of reference numerals in the attached figures

[0056] 1 Drawer; 2 Bottom; 3, 3' Back Wall; 4 Side Frame; 5 Front Panel; 6 Guide Slide; 7 Running Slide; 8 Support Component; 9 Cantilever; 91 Support Section; 10 Support Plate; 100 Wall Section; 11 Bending Section; 12 Step; 13 Section; 14 Support Body; 140 Guide Section; 15 Adjusting Element; 150 Step; 151 Sliding Section; 16 Adjustable Leg; 17 Opening; 18 Ring; 19 Opening; 20 Rotating Component; 21 Section; 22 Tool Insert; 23 Involute Structure; 30, 30' First Vertical Wall Section; 300 Second Vertical Wall Section; 31, 31' Bending Section; 32, 32' Step; 320 Upper Bending Section; 33 Recess; 33 Wall Section; 34 Connecting Piece; 35 Side Wall Section; 36 Opening; 38 End; 39 Wall Section 40. Support; 41. Opening; 42. Bending; 43. Step; 44. Section; 45. Guide tab; 46. Opening; 50. Adjusting element; 51. Protrusion; 52. Opening; 53. Step; 54. Adjusting foot; 540. Hammer; 55. Guide tab; 56. Slot; 57. Protrusion; 58. Guide tab; 59. Tab; 60. Rotating component; 61. Worm; 62. Tool insert; 70. Support; 71. Opening; 72. Bending; 74. Step; 75. Vertical section; 76. Rotating component; 77. Eccentric wheel; 78. Cylindrical component; 781. Guide section; 79. Tool insert; 80. Adjusting element; 81. Slender hole; 811. Area; 82. Component; 83. Tab; 85. Stop; 86. Protrusion; 87. Protrusion; 88. Adjusting foot; 880. Step; 89. Sliding section.

Claims

1. A drawer (1) comprising a bottom plate (2), two side frames (4) and a rear wall (3, 3') serving as a connector between the two side frames (4), the drawer being made of bent metal sheet at least at both ends and having a first generally vertical wall section (30, 30'), the upper side of the first generally vertical wall section having a generally horizontal bend (31, 31') and the lower side having a step (32, 32'), the step having a second generally vertical wall section (300, 33'), wherein the second vertical wall section (300, 33') is horizontal. The drawer (1) is spaced apart from the first vertical wall section and the steps (32, 32') surround the rear edge of the base plate (2). It also includes an adjustment device for tilting the drawer (1) relative to the running track (7) of the pull-out guide. The adjustment device includes supports (8, 40, 70) arranged on the first vertical wall section (30, 30'), on which an adjustment element (15, 50, 80) is movably or pivotally held. This adjustment element is actuated by rotating parts (20, 60, 76) on the supports (8, 40, 70). The drawer (1) is characterized by the following features: The adjusting elements (15, 50, 80) include adjusting feet (16, 54, 88) that can be supported on the running track (7) of the pull-out guide, which are arranged horizontally adjacent to the second vertical wall section (300, 33') and not located within the steps (32, 32').

2. The drawer according to claim 1, characterized in that, The rear wall (3) includes a folded wall section (35) on the side of the end region, the folded wall section extending beyond at least a portion of the height of the rear wall (3).

3. The drawer according to claim 2, characterized in that, The side wall section (35) is securely connected to the inclined support section (91) of the support member (8, 40, 70).

4. The drawer according to any one of the preceding claims, characterized in that, The second vertical wall section (300, 33') extends at least to a portion of the height of the base plate (2).

5. The drawer according to any one of the preceding claims, characterized in that, The second vertical wall section (300, 33') is fixedly connected to the inclined section (13, 44, 75) of the support (8, 40, 70).

6. The drawer according to any one of the preceding claims, characterized in that, The rotating components (20, 60, 76) are fixed between the generally horizontal bends (31, 31') and the steps (32, 32'), and the rotating components (20, 60, 76) extend at least partially along their longitudinal direction within the enclosed space between the horizontal bends (31, 31') and the steps (32, 32').

7. The drawer according to any one of the preceding claims, characterized in that, The adjusting element (15, 50, 80) includes at least one sliding section (151, 55, 58, 89) which includes at least one sliding surface of the guide section (140, 45, 781) of the support (8, 40, 70).

8. The drawer according to any one of the preceding claims, characterized in that, The adjusting elements (15, 50, 80) include steps (150, 53, 880) such that the adjusting feet (16, 54, 88) are offset horizontally relative to the adjusting areas (18, 51, 811) of the rotating components (20, 60, 76).

9. The drawer according to any one of the preceding claims, characterized in that, It also includes a hammer (540) arranged on an adjustable foot (54) that can engage with the running track (7).

10. The drawer according to any one of the preceding claims, characterized in that, The rotating components (20, 60, 76) can be accessed from the front and also from the rear through openings (36, 41, 71) on the rear wall (3, 3').

11. The drawer according to any one of the preceding claims, characterized in that, The support members (8, 40, 70) are made of bent metal plates.

12. The drawer according to any one of the preceding claims, characterized in that, The support members (8, 40, 70) include a stepped profile that conforms to the profile of the rear wall (3, 3').

13. The drawer according to any one of the preceding claims, characterized in that, The support (70) includes a plastic body, which includes a component (82) fixed to the support (70) and an integrally formed movable component serving as an adjustment element (80).

14. The drawer according to any one of the preceding claims, characterized in that, The rotating components (20, 60, 76) include eccentric wheels, worm gears, or involute structures.

15. The drawer according to any one of the preceding claims, characterized in that, The support members (8, 40, 70) are fixed to one of the side frames (4) by side cantilever (9).

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