Drawer and method for producing a drawer
Patent Information
- Application Number
- EP2024793747
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-10-31
- Filing Date
- 2024-10-17
- Publication Date
- 2026-09-09
AI Technical Summary
The existing drawer designs face challenges with complex and expensive fixation of carriers on the inner wall of the side frames, which limits the load-bearing capacity and stability of the drawer.
The improved drawer design features a coupling mechanism between the inner and outer walls, using an intervention contour and a counter contour to securely fix the carriers, allowing for higher load absorption and increased stability. This design also simplifies the assembly process, making it more cost-effective.
The enhanced drawer design achieves higher load-bearing capacity and stability by effectively transferring forces to the side frames, while reducing the complexity and cost of assembly, making it easier and more economical to manufacture.
Smart Images
Figure EP2024079269_08052025_PF_FP_ABST
Abstract
Description
[0001] Drawer and method for producing a drawer
[0002] The present invention relates to a drawer with a base, a front panel, two side frames and a rear wall, which form an interior of the drawer that is open at the top and closed at the bottom by the base, wherein the side frames each have an inner wall and an outer wall mounted on the inner wall, so that the inner wall and the outer wall form a cavity in which two supports are arranged, wherein the front support is connected to the front panel via a front connecting device and the rear support is connected to the rear wall via a rear connecting device, wherein the supports are fixed to the inner wall and wherein at least one support element is arranged on each of the supports in an upper region of the side frame, wherein the inner wall has a fastening section in which the at least one support means is arranged.The present invention also relates to a method for producing a drawer.
[0003] WO 2020 / 058000 A1 shows a drawer with an adapter device mounted on a front panel of the drawer. To accommodate higher loads, the adapter device is fixed to a support within a side frame of the drawer. To mount the support to an inner wall of the side frame, a plurality of force-locking connecting elements are used, and a web of the support engages an opening in the inner wall.
[0004] The problem with the current state of the art is that fixing the support to the inner wall of the side frame is complex and expensive and the side frame can only bear limited loads.
[0005] It is therefore an object of the present invention to provide an improved drawer.
[0006] The present invention solves this problem with a drawer having the features of claim 1 and a method for producing a drawer having the features of claim 21.
[0007] The drawer according to the invention has a base, a front panel, two side frames and a rear wall, which form an interior of the drawer that is open at the top and closed at the bottom by the base, wherein the side frames each have an inner wall and an outer wall mounted on the inner wall, so that the inner wall and the outer wall form a cavity in which two supports are arranged, wherein the front support is connected to the front panel via a front connecting device and the rear support is connected to the rear wall via a rear connecting device, wherein the supports are fixed to the inner wall and wherein at least one support element is arranged on each of the supports in an upper region of the side frame, wherein the inner wall has a fastening section in which the at least one support means is arranged.The inner wall has an engagement contour, and at least one of the supports has a counter-contour on one end face, wherein the engagement contour and the counter-contour form a coupling. The support is positively fixed to the inner wall by means of the coupling in and against a pull-out direction of the drawer. As a result, forces acting in and against the pull-out direction of the drawer are transferred to the inner wall and thus to the side frames of the drawer. This enables the side frame to absorb particularly high loads and increases the stability of the drawer. Furthermore, the number and / or the associated effort of the necessary assembly steps for manufacturing the drawer are reduced, making it particularly simple and cost-effective to manufacture.
[0008] Preferably, a cross-section of the fastening section, which is preferably a section of the inner wall in or on which the supports and the outer wall are fixed, is essentially a downwardly open U, which is formed at an upper end of the inner wall, i.e. end arranged perpendicular to the extension direction of the drawer. This enables particularly advantageous force transmission between the supports and the side frame in order to be able to transmit particularly high forces. Particularly preferably, the engagement contour is formed in a base of the LI shape and is thus particularly easy to manufacture. In a preferred embodiment, the outer wall also has a fastening section which is essentially U-shaped at an end of the outer wall arranged perpendicular to the extension direction of the drawer and which is placed on the fastening section of the inner wall. This makes it particularly easy to fix the outer wall to the inner wall.In particular, neither the engagement contour nor any part of the supports protrudes beyond the fastening section, thus reducing the risk of damage to the attached outer wall. To ensure a particularly stable design of the drawer, the engagement contour comprises at least two coupling surfaces located within the fastening section or protruding downward from the fastening section. This prevents a part of the at least one support from protruding upward from the inner wall, which could lead to undefined contact with the overlapping outer wall.
[0009] The at least one counter contour comprises, in particular, a first stop surface and / or a second stop surface, which, in the extension direction of the drawer, rest essentially gap-free against the first coupling surface and / or the second coupling surface of the engagement contour. This enables a particularly simple formation of a coupling between the counter contour and the engagement contour, and thus between the at least one support and the inner wall.
[0010] In a preferred embodiment, the first stop surface on a side of the engagement contour facing the rear wall rests essentially gap-free against the first coupling surface of the engagement contour. As a result, a force acting on the front support, in particular a weight force of the front panel, can be particularly advantageously transmitted to the front support via the first coupling surface. Alternatively or additionally, the second stop surface on a side of the engagement contour facing the front panel rests essentially gap-free against the second coupling surface of the engagement contour. As a result, a corresponding force acting on the rear support, in particular a weight force of the rear wall, can be particularly advantageously transmitted to the rear support via the second coupling surface.
[0011] Preferably, the coupling surfaces of the engagement contour are curved, providing an enlarged contact area for the respective stop surfaces of the mating contour. This enlarged contact area reduces surface pressure, resulting in better force dissipation.
[0012] The engagement contour preferably has a substantially M-shaped cross-section perpendicular to the extension direction of the drawer, with a V-shaped section, oriented substantially from the direction of the counter-contour to the fastening section, forming the first and / or second coupling surface in the center of the M-shaped cross-section on the end faces of the engagement contour arranged in the extension direction of the drawer. The V-shape is arranged to match the orientation of the drawer. This makes the drawer particularly easy to manufacture.
[0013] In a preferred and particularly easy-to-manufacture embodiment, the at least one counter-contour is essentially groove-shaped and has a groove base between the first stop surface and the second stop surface. The groove base is arranged, in particular, essentially gap-free on a lower surface, or a tip, of the V-shaped section. This prevents movement of the at least one support within the side frame in at least one direction perpendicular to the drawer extension direction in the assembled state, resulting in a particularly stable design of the drawer.
[0014] For a cost-effective design, the at least one support element is preferably made of a different material than the supports. The supports are particularly preferably made of metal, in particular a metal sheet, in particular stamped. In a particularly preferred variant, the support element can be cost-effectively manufactured from plastic or rubber. The elasticity of the support element can prevent rattling noises during movement of the drawer. In a further preferred embodiment, the at least one support element is formed integrally and / or in one piece with the respective support.
[0015] The side frames each have a one-piece inner wall with an integrally formed groove-shaped receptacle for the base of the drawer, wherein the receptacle is channel-shaped and has two essentially horizontal groove cheeks, between which a essentially vertical groove base of the receptacle is arranged. This makes the side frames particularly easy to mount on the base. Preferably, the inner wall has an integrally formed groove-shaped receptacle into which the base of the drawer is inserted, such that the side frames are arranged essentially perpendicular to the base. One end face of the base is particularly preferably arranged gap-free on a stop surface of the groove base of the groove-shaped receptacle of the inner wall. In particular, the inner walls are fixed to the base of the drawer such that the side frames are arranged essentially perpendicular to the base.Preferably, a base part of the supports comprising the main section has a wall thickness of 0.6 mm to 1.1 mm, whereby the supports can preferably support the respective inner wall of the side frames. Optionally, additional components are arranged on the base part of at least one of the supports, which serve to attach the front panel or the rear wall. The supports can thus optionally form an assembly that is overall wider than the wall thickness of the base part.
[0016] Preferably, the front panel is detachably held on the side frames by means of an adapter, or a front panel adapter of the corresponding connecting devices, to main sections of the front support. The front panel adapters are attached to the side frames with the front panel after insertion into the connecting devices, so that the front panel can be easily adjusted or readjusted. Adjustment means are particularly preferably provided on the connecting device on the front support. Alternatively or additionally, adjustment means can be provided on the front panel adapter. The front panel is adjustable relative to the respective side frame by means of the adjustment means on the front panel adapter and / or the front support or its main sections.
[0017] In particular, the counter contour is a cutout in the at least one carrier for easy production.
[0018] In a particularly preferred embodiment, the front support with the connecting device for the front panel can be designed as an assembly, wherein the front support itself or a part of the assembly of the support has the counter contour. In a further preferred embodiment, the rear support with the connecting device for the rear wall can be designed as an assembly, wherein the rear support itself or a part of the assembly of the rear support has the counter contour.
[0019] The inner wall can preferably have a wall thickness of 0.6 mm to 1 mm, and the outer wall can in particular have a wall thickness of 0.4 mm to 0.8 mm. The inner wall and / or the outer wall are preferably made of sheet metal. This allows the side frame to be particularly lightweight and material-efficient. Preferably, the outer wall has a thinner wall than the inner wall, in particular by at least 10%, so that the side frame offers optimized material consumption while maintaining high stability.
[0020] In one embodiment, the at least one support element has, in particular, a substantially U-shaped section to make the support element dimensionally stable. However, the section can also have a different shape that essentially enables a positive fit with the retaining plate of the retaining means.
[0021] Preferably, the U-shaped section of the at least one support element encompasses at least a portion of the supports and / or their main section to facilitate mounting on the retaining plate. Additionally, the connection, in particular the engagement of the support element with the retaining plate, can also comprise a frictional connection and be clamped to the supports.
[0022] The at least one support element preferably has at least one projection protruding from the supports, by means of which a force acting on the side frame can be transmitted to the supports, thus enabling a particularly stable design of the side frame. The projection protrudes from the supports, particularly on the open side of the U-shaped section of the at least one support element, essentially at an angle of 45° to 135°, and preferably at approximately 90°, in order to optimally transmit acting forces.
[0023] In a preferred embodiment, the at least one support element positions the counter contour laterally relative to the engagement contour. This prevents the counter contour from disengaging from the engagement contour in an unfavorable load case.
[0024] In an alternative embodiment, the support means in the region of the fastening section of the inner wall can be formed by a deformation on the supports or on a part of the support assembly. This allows the counter contour within the fastening section to be aligned with the engagement contour.
[0025] In an alternative embodiment, the support means can be part of the fastening section or arranged on the fastening section, so that the counter contour is positioned laterally to the engagement contour. The fastening section of the inner wall preferably has at least one clamping means, particularly in one leg of the LI shape. By means of the clamping means, the outer wall and the inner wall are fixed to one another in a force-fitting and thus particularly stable manner.
[0026] Particularly preferably, at least one of the at least one support can comprise at least two counter-contours, each of which forms a coupling with an engagement contour on the inner wall in order to achieve a particularly stable fixation of the at least one support to the inner wall. Even more preferably, the inner wall has a plurality of engagement contours for a particularly reliable fixation of the at least one support, wherein the engagement contours are formed in the fastening section, in particular along a longitudinal extension of the side frame, which runs parallel to the extension direction of the drawer.
[0027] In an alternative embodiment, exactly two engagement contours can be provided for the at least one support, wherein the counter-contour is designed as a web that engages between the two engagement contours. For particularly reliable fixation of the supports, each of the supports preferably has at least one counter-contour on one end face, which forms a coupling with an engagement contour of the respective inner wall.
[0028] In a further embodiment, it is possible that several engagement contours are provided for coupling the at least one carrier, which are encompassed by several counter contours or webs.
[0029] In an alternative embodiment, the engagement contour can be arranged as a separate component on the fastening section of the inner wall. The separate component can be made of metal or plastic. The separate component can also be arranged on the fastening section by means of a material-to-material connection and / or another joining process.
[0030] In a preferred embodiment, at least one of the supports is fixed by clinching to a side of the groove base of the receptacle facing away from the bottom of the drawer. This provides the side frame with particularly high stability. For a simple design, the inner wall, the outer wall, and the supports are, in particular, essentially plate-shaped. For particularly advantageous force transmission and / or stability of the side frame, in particular of the housing, the supports preferably have two support elements.
[0031] Preferably, the positive connection between the engagement contour and the counter-contour of the support can absorb a force acting in the extension direction of the drawer of 10 N to 250 N, and preferably of 10 N to 25 N. The front panel or the rear wall is also fixed to one of two supports per side frame by means of a connecting device, so that the drawer can be stable even with particularly heavy front panels and rear walls.
[0032] The side frames can preferably each have one and optionally also more additional supports which do not include a connecting device in order to further increase their stability.
[0033] A positive connection in the sense of the present invention can also mean that there is a little play and / or a little clamping force between the components, so that manufacturing tolerances can be maintained more easily, whereby the stability of the support device is not significantly impaired.
[0034] A movement “in the extension direction of the drawer” means, in the sense of the present invention, in the longitudinal direction of the side frames, i.e. in particular a movement of a component in the direction along an axis that runs parallel to the extension direction of the drawer.
[0035] The method according to the invention for the simple production of a drawer comprises the following steps: a. Providing at least four supports, each of which has at least one support element arranged in the upper region; b. Mounting two supports on each of two inner walls; c.Pivoting the supports around a variable contact point of the support means on the inner walls in order to arrange the support means in a fastening section of the respective inner wall, wherein the inner walls each have at least one engagement contour, wherein the engagement contour forms coupling surfaces which are located within the fastening section or protrude downwards from the fastening section, onto which a counter-contour on an upper end face of at least one of the supports is pivoted, so that the engagement contour couples with the counter-contour in order to fix the at least one support in and against a pull-out direction of the drawer by means of the counter-contour in a form-fitting manner to the inner wall; d. Fixing one of two outer walls to one of the inner walls in order to produce two side frames; e.Fixing the two side frames, a front panel and a back wall to a base so that they form an interior of the drawer that is open at the top and closed at the bottom by the base.
[0036] The present invention is explained in more detail below with reference to several drawings. They show:
[0037] Fig. 1 is a perspective view of a drawer according to the invention,
[0038] Fig. 2a to 2e several views of an inner wall of a side frame of the drawer from Fig. 1,
[0039] Fig. 3a and 3b show several views of an inner wall of a side frame of the drawer according to the invention from Fig. 1 according to a further embodiment,
[0040] Fig. 4a to 4d several views of a carrier from Fig. 3a,
[0041] Fig. 5 is an exploded view of the carrier from Fig. 4a,
[0042] Fig. 6a to 6f steps of a method for producing a side frame of a drawer according to the invention,
[0043] Fig. 7a to 7c show several views of the drawer according to the invention from Fig. 1. Fig. 1 shows a drawer 2 according to the invention, with a plate-shaped base 4, a front panel 3, two side frames 1, and a rear wall 5, which form an interior of the drawer 2 that is open at the top and closed at the bottom by the base 4. The side frames 1 each have an inner wall 11 and an outer wall 12, which form a hollow space. The side frames 1 are mirror-symmetrical to one another.
[0044] Fig. 2a shows an isometric view of the inner wall 11 of the side frame 1 from Fig. 1, which is arranged on the left in Fig. 1 from the viewpoint of the front panel 3 to the rear wall 5. The side frame 1 here has a front support 13 with a connecting device 141 for the front panel 3 of the drawer 2 (not shown here), and a rear support 15 for the rear wall 5 of the drawer 2 (not shown here). The supports 13 and 15 are arranged at opposite ends of the inner wall 11. The connecting device 141 has an energy accumulator 14 designed as a spring for mounting the front panel 3 from Fig. 1. The rear support 15 optionally has a spring clip 157 as part of a connecting device 143 for the rear wall 5. Optionally, at least one further support can be provided between the supports 13 and 15 in order to strengthen the side frame 1.
[0045] The inner wall 11 has an integrally formed groove-shaped receptacle 114 for the base 4 (not shown here) of the drawer 2 from Fig. 1. The receptacle 114 is channel-shaped and has two essentially horizontal groove cheeks 1151 and 1152, between which an essentially vertical groove base 115 is arranged. The groove base 115 comprises a stop surface 116 which projects towards an end face of the base, or towards the opening of the receptacle 114, into which the base 4 is inserted in Fig. 1. The groove base 115 comprises two recesses 117 arranged parallel to one another and partially interrupted by cutouts 118. The stop surface 116 is arranged between the recesses 117 which run parallel to one another.
[0046] The supports 13 and 15 each comprise a substantially plate-shaped main section 133, 153, and a holding section 131, 151, each offset by a contour 134, 154. At least one support element 132 is arranged on each of the main sections 133, 153. The inner wall 11 has a fastening section 111, which is essentially a U-shaped bend in the inner wall 11. The fastening section 111 is located at an upper end facing away from the floor 4, or at an end face of the inner wall 11. The at least one support means 132 is arranged in each of the fastening sections 111, so that a force acting on the inner wall 11, or according to Fig. 1 also on the outer wall 12 shown there, can be transferred via the support element 132 to the support 13 or 15, or vice versa.The holding sections 131 and 151 of the supports 13 and 15 are each arranged in recesses 118 in the depressions 117 and are fixed by clinching on the side of the groove base 115 facing away from the receptacle 114. An engagement contour 17 substantially or completely prevents movement of the rear support 15 in the extension direction of the drawer.
[0047] Fig. 2b shows an enlarged view of the arrangement of the rear support 15 in the fastening section 111 of the inner wall 11. The engagement contour 17, which is integrally formed from a bend in the fastening section 111, engages here with a counter-contour 156 formed as a cutout in an end face 155 of the support 15, here the main section 153, which runs essentially parallel to the extension direction of the drawer 2. As a result, the rear support 15 is positively fastened to the inner wall 11. The engagement contour 17 is formed within the fastening section 111. The figures show that the engagement contour 17 protrudes into the U-shaped fastening section 11. The engagement contour 17 is essentially an M-shaped bend in a base of the U-shape of the fastening section 111.A V-shaped section formed in this way in the center of the M-shape forms a first coupling surface 171 and a second coupling surface 172 of the engagement contour 17 on its end faces in the extension direction of the drawer 2. The counter contour 156 has a first stop surface 1561 and a second stop surface 1562, which each bear essentially gap-free against the first coupling surface 171 and the second coupling surface 172, respectively. The V-shape enlarges the contact surface of the coupling surface 171, 172 for the stop surface 1561, 1562. The counter contour 156 thus does not protrude beyond the fastening section 111.
[0048] By means of the support elements 132, here two, the rear support 15 is arranged in a form-fitting manner in the fastening section 111, also perpendicular to the extension direction of the drawer 2. The support elements 132 thus position the rear support 15 within the fastening section 111, so that the counter contour 156 rests in the correct position against the engagement contour 17. The illustrated support means 132 have a substantially U-shaped section that surrounds an upper edge of the main section 153 in a substantially form-fitting manner. The support means 132 have a projection 1322, which, in the illustrated state, protrudes from the main section 153 at an angle of 45° to 135° and preferably of approximately 90°. The rear support 15 is arranged in a form-fitting manner in the fastening section 111 of the inner wall 11 by means of the support means 132.
[0049] In Figure 2a, the fastening section 111 is recessed in the area of the front support 13, so that in this area the support element 132 rests against the fastening section 111 only with a rear side 1324. In the assembled state, the support element 132 rests against the outer wall 12 with the projection 1322.
[0050] In Fig. 2c, a view of the side frame 1 of the drawer 2 from Fig. 1a, which is arranged on the left as viewed from the front panel 3 of the drawer 2 to the rear wall 5, is shown in a plan view of the receptacle 114 in the direction from the inner wall 11 to the outer wall 12 of the side frame 1 and the front support 13.
[0051] Fig. 2d shows cross-section A of the side frame 1 from Fig. 2c. The rear support 15, which has the stepped contour 154, is arranged in the cavity between the inner wall 11 and the outer wall 12 of the side frame 1. By means of the contour 154, the support 15 is supported on the groove cheek 1151 of the receptacle 114. A main section 153 of the rear support 15 is formed on one side of the contour 154, and a holding section 151 of the rear support 15 is formed on the other side of the contour 154. In Fig. 1, the rear wall 5 of the drawer 2 is fixed to the rear support 15. The outer wall 12 is fastened to the groove cheek 1152 of the receptacle 114 of the inner wall 11 by clinching and / or welding. Below the receptacle 114, the inner wall 11 has an integrally formed extension 119. The outer wall 12 has a fastening section 121, which comprises a substantially U-shaped bend of the outer wall 12.The fastening section 121 is positively mounted on the matching fastening section 111 of the inner wall 11. The engagement contour 17 is coupled to the main section 153 of the rear support 15 and positively prevents it from moving in the extension direction of the drawer 2.
[0052] Fig. 2e shows a region of the side frame 1 from Fig. 2a, in which the inner wall 11 and the outer wall 12 are positively and / or non-positively connected to one another by means of the two fastening sections 111, 121. It is clearly visible that a V-shaped section of the engagement contour 17, at the front end of which the coupling surface 172 visible here is formed, engages in the main section 153 of the rear support 15. To fix the inner wall 11 to the outer wall 12, the fastening section 111 optionally has at least one clamping means 112, by means of which a non-positive connection is established between the inner wall 11 and the outer wall 12 within the fastening section 121 of the outer wall 12. In this example, the clamping means 112 is a portion protruding from the fastening portion 111, which creates a clamping effect on the fastening portion 121 of the outer wall 12.
[0053] 3a and 3b each show views of a further embodiment of an inner wall 1T of a side frame 1 of the drawer according to the invention, which has an engagement contour 17 both in the front area on a front support 16 for a front panel 3 of the drawer 2 and in the rear area for a second, not shown support for a rear wall 5 of the drawer 2. A groove-shaped receptacle 114, essentially corresponding to FIG. 2a, for the (not shown) base 4 of the drawer 2 is integrally formed on the inner wall 1T. The receptacle 114 has two essentially horizontal groove cheeks 1151, 1152, between which the groove base 115 is arranged. The groove base 115 comprises a stop surface 116, which is arranged between, here at least two, essentially parallel recesses 117.The recesses 117 have, in an upper region of the groove base 115 as shown in the drawing, a plurality of cutouts 118 in which the holding section 161 of the front support 16 is arranged. The front support 16 also has a contour 164 and a plate-shaped main section 163, like the support 13 in Fig. 2a. The inner wall 1T also has an integral extension 119, which essentially corresponds to the extension 119 of the preceding inner wall 11. The front support 16 is attached to the groove base 115 of the receptacle 114 by means of clinching on the rear side of the stop surface 116.
[0054] Fig. 3b shows an enlarged view of the area of the front support 16 on the inner wall 1T from Fig. 3a in which the support means 132 are arranged in a form-fitting manner on the main section 163 and in particular are plugged onto it.
[0055] The engagement contour 17, which is integrally formed from a bend in a fastening section 111', engages here in a counter-contour 166 formed as a cutout in an end face 165 of the front support 16, here of the main section 163, which runs essentially parallel to the extension direction of the drawer 2. As a result, the front support 16 is positively fixed to the inner wall 1T. The engagement contour 17 here essentially corresponds to the engagement contour 17 from Fig. 2b and likewise has the essentially M-shaped bend in a base of the LI shape of the fastening section 11T. A V-shaped section formed therefrom in the middle of the M shape likewise forms the first coupling surface 171 and the second coupling surface 172 of the engagement contour 17 on its end faces in the extension direction of the drawer 2. The counter contour 166 has, like the counter contour 156 from Fig.2b, a first stop surface 1661 and a second stop surface 1662, which each bear essentially gap-free against the first coupling surface 171 and the second coupling surface 172, respectively. The front support 16 has two support means 132 mounted on the main section 163, which have an arrangement substantially similar to that on the rear support 15 of Fig. 2b. An outer wall 12, which is not shown in the figure, is also fixed to the inner wall 1T in Figs. 3a and 3b.
[0056] Fig. 4a to 4d show several views of the front support 16 from the preceding Figures 3a and 3b. The front support 16 comprises the holding section 161 arranged on one side of a contour 164 and the main section 163. The front support 16 optionally forms an assembly that includes a connecting device 14T for a front panel 3. By way of example, an optional cover plate 1631 is shown here as part of the connecting device 14T, or of the main section 163 of the front support 16. Symbols for the adjustment of a front panel 3 and the locking state can be seen on the main section 163, which it preferably has on both sides. The support means 132 are plugged onto the main section 163 and form an extension of the front support 16.The front support 16, or the main section, and specifically the cover plate 1631, has on an end face 165 the counter contour 166, by means of which the positive connection with the engagement contour 17 from Fig. 3b is established. The counter contour 166 is essentially groove-shaped and comprises a groove base 1663 between the first and second stop surfaces 1661, 1662. The groove base 1663 is slightly raised compared to two transition regions between the groove base 1663 and the stop surfaces 1661 and 1662, so that in Fig. 3b it is arranged essentially gap-free on the underside of the engagement contour 17, or at a tip of the V-shaped section. In Fig. 4d, the front support 16 is shown from the side which has the support means 132 with the U-shaped section encompassing the main section 163 or the cover plate 1631 and the projection 1322 by means of which the outer wall 12 of the side frames 1 (not shown) is supported.Otherwise, the front support 16 essentially corresponds to the support 13 from Fig. 2a and only has a slightly different shape and / or dimensions.
[0057] Fig. 5 shows an exploded view of the front support 16. The front support 16 consists of two essentially plate-shaped components, and the support means 132 are plugged onto one of these components. Fig. 5 shows a part of the support that includes the cover plate 1631. The support means 132 is plugged onto the main section 163 or onto a plate-shaped component forming part of the main section 163, the cover plate 1631, in the region of a recess for a web (not visible) within the U-shape of the support means 132. As a result, it is positively connected to the cover plate 1631 by means of the U-shaped section here.
[0058] 6a to 6f show steps of a method according to the invention for producing a drawer. Fig. 6a to 6c show how the front support 16 is positioned, i.e. applied, in the region of the fastening section 11T on the inner wall 1T, which corresponds to the previously described inner wall 1T, so that the support means 132 rest against the bent section, i.e. against the edge of the fastening section 11T. Fig. 6d shows this in an enlarged view. According to the illustration in Fig. 6c and Fig. 6d up to Fig. 6f, in the next step the support 16 is pivoted on the support means 132 on the fastening section 111' such that it is held in the inner wall 11'.6c and 6d clearly show how the front support 16 is pivoted into the fastening section 11T in such a way that the counter contour 166 is pivoted onto the engagement contour 17 in order to establish a coupling between the stop surfaces of the counter contour 166 and the coupling surfaces (here only 172 is visible).
[0059] Fig. 6e shows the front support 16, whose holding section 161 is fixed below the contour 164 to the groove base 115 of the receptacle 114 by means of clinching. The holding section 161 extends through the at least one recess 118 in the depression 117.
[0060] Fig. 6f shows an enlarged view of how the support 16 is arranged in the fastening section 111' by means of the support means 132 on the inner wall 1T. As shown, a slight play can also exist between the components in the sense of the present invention. As can be seen, the engagement contour 17 engages with the counter-contour 166, so that a movement of the front support 16 in and against the extension direction of the drawer is prevented or at least partially prevented. The coupling surface 171 and the stop surface 1661 prevent a movement of the front support 16 in the extension direction, in particular when opening the drawer 2. The coupling surface 172 and the stop surface 1662 prevent a movement of the support 16 against the extension direction, in particular when closing the drawer 2. Subsequently, an outer wall 12 (not shown) is arranged on the inner wall 1T in order to form the side frame 1.The side frame 1 thus produced, another mirror-symmetrical side frame 1, and a rear wall 5 of the drawer 2 are mounted on a base 4 of the drawer 2, or on each other, and then the front panel 3 is mounted at least on the side frames 1, so that they form an interior of the drawer 2 that is open at the top and closed at the bottom by the base 4. The drawer 2 thus produced essentially corresponds to the drawer 2 from Fig. 1.
[0061] Fig. 7a shows a plan view of the rear wall 5 of the drawer 2 according to the invention from Fig. 1, wherein the two side frames 1 are mounted on the base 4 of the drawer 2. The front panel 3 of the drawer 2 is not shown in Fig. 7a. The drawer 2 has two connecting devices 1191, each for a pull-out guide. In each case, an end face 41 or 42 of the base 4 is arranged in the receptacles 114 of the inner walls 11 of the side frames 1. The inner wall 11 essentially corresponds to the inner wall 11 from Fig. 2a.
[0062] As can be seen in Fig. 7b in an enlarged view of the left side frame 1 in Fig. 7a, the base 4 of the drawer is inserted into the receptacle 114 of the side frame 1 such that the end face 41 of the base 4 rests against the stop surface 116 essentially without a gap. Otherwise, the illustration essentially corresponds to Fig. 2a. The inner wall 11 and the holding section 131 are connected to one another by means of a joining process. The outer wall 12 is placed onto the fastening section 111 of the inner wall 11 by means of the fastening section 121 and supported on the recesses 117 of the receptacle 114. The outer wall 12 is firmly connected in the lower region to the groove cheek 1152 or the extension 119 by means of a joining process. Fig. 7c shows an enlarged view of the side frame 1 from Fig. 7b in an upper section of the side frame 1 corresponding to the illustration, in the area of the fastening sections 111 and 121.A frictional connection between the inner wall 11 and the outer wall 12 is established by means of the clamping means 112 formed on the fastening section 111 within the fastening section 121. The support means 132 arranged on the front support 16 also rests against the outer wall 12 by means of a protruding projection 1322. As can be seen, there is a positive connection between the counter contour 156 and the engagement contour 17. A connecting device 1191 for a pull-out guide of the drawer 2 is arranged on the extension 119 of the inner wall 11.
[0063] List of reference symbols:
[0064] 1 side frame
[0065] 11 Interior wall
[0066] 111 Fastening section
[0067] 112 clamping devices
[0068] 114 recording
[0069] 115 groove base
[0070] 1151 Groove cheek
[0071] 1152 Groove cheek
[0072] 116 Stop surface
[0073] 117 Deepening
[0074] 118 recess
[0075] 119 Extension
[0076] 1191 connecting device
[0077] 12 exterior wall
[0078] 121 fastening section
[0079] 13 carriers
[0080] 131 stopping section
[0081] 133 Main section
[0082] 134 Contour
[0083] 132 Support element
[0084] 1322 lead
[0085] 1324 back
[0086] 14 energy storage
[0087] 141 Connecting device
[0088] 141 ' Connecting device
[0089] 143 Connecting device
[0090] 15 carriers
[0091] 151 stopping section
[0092] 153 Main section
[0093] 154 Contour
[0094] 155 front side
[0095] 156 Counter contour
[0096] 1561 first stop surface
[0097] 1562 second stop surface
[0098] 157 spring clip
[0099] 16 carriers
[0100] 161 stopping section
[0101] 163 Main section
[0102] 1631 Cover plate 164 contour
[0103] 165 front side
[0104] 166 Counter contour
[0105] 1661 first stop surface
[0106] 1662 second stop surface
[0107] 1663 Groove ground
[0108] 17 engagement contour
[0109] 171 coupling surface
[0110] 172 coupling surface
[0111] 2 drawers
[0112] 3 Front panel
[0113] 4 Floor
[0114] 41 Front side
[0115] 42 front side
[0116] 5 Rear wall
[0117] 11 ' interior wall
[0118] 111 ' fastening section
Claims
Claims 1 . Drawer (2) with a base (4), a front panel (3), two side frames (1) and a rear wall (5), which form an interior of the drawer (2) which is open at the top and closed at the bottom by the base (4), wherein the side frames (1) each have an inner wall (11, 11') and an outer wall (12) mounted on the inner wall (11, 11'), so that the inner wall (11, 11') and the outer wall (12) form a cavity in which two supports (13, 15, 16) are arranged, wherein the front support (13, 16) is connected to the front panel (3) via a front connecting device (141, 14T) and the rear support (15) is connected to the rear wall (5) via a rear connecting device (143), wherein the supports (13, 15, 16) are connected to the inner wall (11, 1 T) are fixed and wherein at least one support element (132) is arranged on the supports (13, 15, 16) in an upper region of the side frame (1), wherein the inner wall (11,1 T) has a fastening section (111, 11 T) in which the at least one support means (132) is arranged, characterized in that the inner wall (11, 1 T) has an engagement contour (17) and at least one of the supports (13, 15, 16) has a counter-contour (156, 166) on an end face (155, 165), wherein the engagement contour (17) and the counter-contour (156, 166) form a coupling, and in that the support (13, 15, 16) is fixed to the inner wall (11, 1 T) in a form-fitting manner by means of the coupling in and against a pull-out direction of the drawer (2).
2. Drawer (2) according to claim 1, characterized in that a cross section of the fastening section (111, 11T) is substantially a downwardly open U formed at an upper end of the inner wall (11, 1T).
3. Drawer (2) according to claim 1 or 2, characterized in that the engagement contour (17) comprises at least two coupling surfaces (171, 172) which are located within the fastening section (111, 11T) or which protrude downwards from the fastening section (111, 11T).
4. Drawer (2) according to claim 3, characterized in that the counter contour (156, 166) has a first stop surface (1561, 1661) which is arranged on a side of the engagement contour (17) facing the rear wall (5) in the Essentially gap-free, it rests against the first coupling surface (171) of the engagement contour (17).
5. Drawer (2) according to claim 3 or 4, characterized in that the counter contour (156, 166) has a second stop surface (1562, 1662) which, on a side of the engagement contour (17) facing the front panel (3), bears against the second coupling surface (172) of the engagement contour (17) in a substantially gap-free manner.
6. Drawer (2) according to one of claims 3 to 5, characterized in that the coupling surfaces (171, 172) of the engagement contour (17) are curved, so that an enlarged contact surface is available to the respective stop surfaces (1562, 1662) of the counter contour.
7. Drawer (2) according to one of claims 3 to 6, characterized in that the engagement contour (17) has a substantially M-shaped cross-section perpendicular to the extension direction of the drawer, wherein a V-shaped section aligned substantially from the direction of the counter contour (156, 166) to the fastening section (111, 111') in the middle of the M-shaped cross-section on the end faces of the engagement contour (17) arranged in the extension direction of the drawer forms the first and / or the second coupling surface (171, 172).
8. Drawer (2) according to claim 4 and 5, 6 or 7, characterized in that the counter contour (156, 166) is substantially groove-shaped and has a groove base (1663) between the first stop surface (1561, 1661) and the second stop surface (1562, 1662).
9. Drawer (2) according to claim 8, characterized in that the groove base (1663) of the counter contour (156, 166) is arranged substantially gap-free on a lower surface of the V-shaped section.
10. Drawer (2) according to one of the preceding claims, characterized in that the at least one support element (132) is made of a different material than the supports (13, 15, 16).
11. Drawer (2) according to claim 10, characterized in that the supports (13, 15, 16) are made of metal and the at least one support element (132) is made of plastic or rubber.
12. Drawer (2) according to one of the preceding claims, characterized in that the at least one support element (132) is formed integrally with the supports (13, 15, 16).
13. Drawer according to one of the preceding claims, characterized in that the side frames (1) each have a one-piece inner wall (11, 1 T) with an integrally formed groove-shaped receptacle (114) for the base (4) of the drawer (2), wherein the receptacle (114) is channel-shaped and has two substantially horizontal groove cheeks (1151, 1152), between which a substantially vertical groove base (115) of the receptacle (114) is arranged.
14. Drawer (2) according to one of the preceding claims, characterized in that the outer wall (12) has a smaller wall thickness than the inner wall (11, 1 T).
15. Drawer (2) according to one of the preceding claims, characterized in that the inner wall (11, 1 T) has a wall thickness of 0.6 mm to 1 mm and the outer wall (12) has a wall thickness of 0.4 mm to 0.8 mm.
16. Drawer (2) according to one of the preceding claims, characterized in that the at least one support element (132) has a substantially U-shaped section which encompasses at least part of the supports (13, 15, 16) and / or its main section (133, 153, 163).
17. Drawer (2) according to one of the preceding claims, characterized in that the at least one support element (132) has at least one projection (1322) which projects from the supports (13, 15, 16), by means of which a force acting on the outer wall (12) can be transmitted to the supports (13, 15, 16).
18. Drawer (2) according to one of the preceding claims, characterized in that the inner wall (11, 11T) has at least one clamping means (112) on the fastening section (111, 11T), by means of which the inner wall (11, 11T) and the outer wall (12) are fixed to one another in a force-fitting manner.
19. Drawer (2) according to one of the preceding claims, characterized in that the supports (13, 15, 16) with the connecting device (141, 141', 143), is fixed to the front panel (3) or the rear wall (5), is designed as an assembly, wherein the supports (13, 15, 16) themselves or a part of the assembly of supports (13, 15, 16) have the counter contour (166).
20. Drawer according to one of the preceding claims, characterized in that the at least one support element (132) positions the counter contour (156, 166) laterally to the engagement contour (17).
21. A method for producing a drawer (2), comprising the following steps: a. Providing at least four supports (13, 15, 16), each of which has at least one support element (132) arranged in the upper region; b. Mounting two supports (13, 15, 16) on each of two inner walls (11, 12); c.Pivoting the supports (13, 15, 16) around a variable contact point of the support means (132) on the inner walls (11, 11') in order to arrange the support means (132) in a fastening section (111) of the respective inner wall (11, 11'), wherein the inner walls (11, 11') each have an engagement contour (17), wherein the engagement contour (17) forms coupling surfaces (171, 172) which are located within the fastening section (111, 11') or protrude downwards from the fastening section (111, 11'), onto which a counter-contour (156, 166) on an upper end face (155, 165) of at least one of the supports (13, 15, 16) is pivoted, so that the engagement contour (17) with the Counter-contour (156, 166) is coupled in order to fix the at least one support (13, 15, 16) in and against a pull-out direction of the drawer (2) by means of the counter-contour (156, 166) in a form-fitting manner to the inner wall (11, 1 T); d.Fixing one of each of two outer walls (12) to one of the inner walls (11, 11') to produce two side frames (1); e. Fixing the two side frames (1), a front panel (3) and a rear wall (5) to a base (4) so that they form an interior of the drawer (2) that is open at the top and closed at the bottom by the base.