Drawer side walls
Laser-induced deformations in the support profile of drawer side walls improve stability and load-bearing capacity by addressing detachment issues in metal-welded structures, particularly in tilt-adjustable drawers.
Patent Information
- Application Number
- JP2025514348
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-09-09
- Filing Date
- 2023-08-30
- Publication Date
- 2025-09-04
AI Technical Summary
Existing drawer side walls with metal support profiles and retaining devices welded by laser seams are prone to detachment under load, particularly when tilt adjustment is via a rail rod, compromising load-bearing capacity.
Implementing a laser deformation separate from the laser weld seam in the support profile to enhance stability and reduce detachment risk, achieved by targeted heat application during welding to induce structural changes and hardening.
Enhances the load-bearing capacity of the side wall by making the holding device more stable and less susceptible to detachment, allowing for higher loads, especially with rail rod tilt adjustments.
Smart Images

Figure 2025529357000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a side wall for a drawer of the type defined in the preamble of claim 1, as well as to a method for manufacturing such a side wall.
[0002] The prior art knows side walls for drawers, which include a support profile and a retaining device for connecting the side wall to the drawer rear wall or the drawer front wall, the support profile and the retaining device being at least partially made of a metal material and welded to one another by a laser weld seam.
[0003] However, in this case, there is a risk that under certain loads the holding device may again come loose from the support profile, for example if the tilt adjustment of the drawer front wall is realized via a rail rod.
[0004] The object of the present invention is to provide an improved side wall compared to the prior art, in which the holding device does not come off the support profile and which is distinguished by a particularly high load-bearing capacity, and a method for manufacturing such an improved side wall.
[0005] This problem is solved by the features of claims 1 and 10.
[0006] It is specified that in the side wall, the support profile has, in the region of the at least one laser weld seam, at least one laser deformation produced by laser light that is separate from the laser weld seam.
[0007] That is, an additional laser treatment is carried out in the area of the weld, which on the one hand makes the rail more stable and on the other hand makes the holding device less susceptible to detachment.
[0008] In other words, during the welding process for attaching the holding device, the laser additionally introduces heat into the support profile, which causes the support profile to easily deform and bend upward, i.e., in this case, stresses are generated in the support profile in a targeted manner, which result in a favorable deformation.
[0009] Under certain material qualities, structural changes and therefore hardening processes can also occur.
[0010] The additional laser treatment allows the support profile to withstand stronger loads, which allows for higher loads on the drawer back wall or drawer front wall connected to the holding device, which is advantageous, for example, when the tilt adjustment of the drawer front wall is realized by means of a rail rod.
[0011] The method for manufacturing a side wall for a drawer according to the invention is likewise specified in that at least one support profile and at least one holding device are welded to one another by at least one laser weld seam, and that a laser deformation separate from the at least one laser weld seam is produced in the area of the at least one laser weld seam by irradiating it with laser light.
[0012] According to a preferred embodiment of the side wall, a majority of the at least one laser welded seam is arranged on the at least one support profile at a location where the at least one holding device and the at least one support profile come into contact with each other. Correspondingly, it may be specified in the method that a majority of the at least one laser welded seam is arranged on the at least one support profile at a location where the at least one holding device and the at least one support profile come into contact with each other.
[0013] Alternatively or additionally, it may be specified that a major portion of the at least one laser deformation section is arranged on the at least one support profile at a location where the at least one holding device and the at least one support profile are not in contact with each other. In other words, the at least one holding device and the at least one support profile are formed in a contactless manner at this location. Correspondingly, it may be specified in the method that a major portion of the at least one laser deformation section is arranged on the at least one support profile at a location where the at least one holding device and the at least one support profile are not in contact with each other.
[0014] Another advantageous configuration of the side wall is characterized in that the at least one laser deformation is arranged offset relative to the at least one laser weld seam of the at least one support profile, and the method can specify that the at least one laser deformation is arranged offset relative to the at least one laser weld seam of the at least one support profile accordingly.
[0015] It has proven advantageous that the at least one laser deformation and the at least one laser welded seam have at least one intersection, and / or that the at least one laser deformation extends over a width greater than the at least one laser welded seam in a direction transverse to the longitudinal direction of the at least one support profile, and / or that the at least one laser deformation is formed at least partially linearly and / or has a zigzag shape. Correspondingly, the method may specify that the at least one laser deformation and the at least one laser welded seam are arranged relative to one another so that the laser deformation and the laser welded seam have at least one intersection, and / or that the at least one laser deformation extends over a width greater than the at least one laser welded seam in a direction transverse to the longitudinal direction of the at least one support profile, and / or that the at least one laser deformation is formed at least partially linearly and / or has a zigzag shape.
[0016] A particularly preferred embodiment of the side wall is characterized in that the at least one laser weld seam and the at least one laser deformation are at least partially linear, the laser weld seam and the laser deformation have different line widths, preferably the laser deformation has a line width greater than the laser weld seam. Correspondingly, the method may specify that the at least one laser weld seam and the at least one laser deformation are generated by the same laser, with the focus of the laser being adjusted, preferably widened, after generation of the laser weld seam and before generation of the at least one laser deformation.
[0017] Finally, it has been found to be advantageous that in the side wall, at least one holding device and at least one support profile are partially in contact with each other on a first side of the support profile, and at least one laser welded seam and at least one laser deformation are arranged on a second side located opposite the first side and separated from the first side by the material thickness of the support profile, preferably in the use position of the side wall, the first side being the upper surface facing upward of the support profile and the second side being the lower surface facing downward of the support profile. In the method, correspondingly, at least one holding device and at least one support profile are partially in contact with each other on a first side of the support profile, and at least one laser welded seam and at least one laser deformation portion are arranged on a second side located opposite the first side and separated from the first side by the material thickness of the support profile, preferably in the use position of the side wall, where the first side may be specified as an upwardly facing upper surface of the support profile and the second side as a downwardly facing lower surface of the support profile.
[0018] Further details and advantages of the invention are explained in more detail below with reference to the drawings based on the description of the drawings. [Brief explanation of the drawings]
[0019] [Figure 1] FIG. 10 is a perspective view showing a side wall for a drawer. [Figure 2]FIG. 1 is a schematic side view showing the side walls for the drawer. [Figure 3] 4 shows a perspective view from above of the support profile of the side wall with the retaining device and an additional enlarged view of section 17 of FIG. 3. FIG. [Figure 4] FIG. 2 is a perspective view from below partially showing a support profile of a side wall with a retaining device. [Figure 5] FIG. 1 is a plan view from below showing the entire side wall support profile. [Figure 6] 6 is a plan view from below showing section 19 of FIG. 5. FIG. [Figure 7] 6 is a plan view from below showing section 19 of FIG. 5. FIG. [Figure 8] 6 is a plan view from below showing section 19 of FIG. 5. FIG.
[0020] 1 and 2 show a side wall 1 for a drawer, which includes at least one support profile 2 and at least one retaining device 3, 18 for connecting the side wall 1 to the drawer back wall or the drawer front wall.
[0021] The retaining device 3 is arranged in the rear region of the side wall 1 in the use position and is designed to connect the side wall 1 to the drawer back wall.
[0022] The retaining device 18 is arranged in the front region of the side wall 1 in the use position and is designed to connect the side wall 1 to the drawer back wall.
[0023] The support profile 2 can also be referred to as a container rail.
[0024] The side wall 1 can be connected to a drawer guide (not shown), in which case the support profile 2 rests against a drawer rail of the drawer guide, which is slidable relative to the cabinet rail.
[0025] The holding devices 3 and 18 may be arranged in defined areas within a hollow profile 16 which is connected or can be connected to the support profile 2 .
[0026] The invention will be explained in the following figures with reference to the example of a holding device 3. Alternatively or additionally, the holding device 3 can be used in a holding device 18.
[0027] Figures 3 and 4 show a support profile 2 of a side wall 1 with a retaining device 3 in a perspective view from above and partially from below, with section 17 in Figure 3 being additionally shown enlarged.
[0028] The support profile 2 may have a horizontal web, as in the illustrated example, with a first side 11 and a second side 12 located opposite the first side 11 and separated from the first side 11 by the material web of the support profile 2.
[0029] The support profile 2 may have a first vertical web 13 and a second vertical web 14 connected to the horizontal web, the vertical webs 13 and 14 being spaced apart from each other and extending substantially parallel to each other.
[0030] The support profile 2 may have a resting web 15 for the drawer bottom.
[0031] 5 to 8 show the support profile 2 of the side wall 1 in plan views from below, with FIG. 5 showing the entire support profile 2 and FIGS. 6 to 8 showing sections 19. In FIG.
[0032] The support profile 2 and the holding device 3 are at least partially made of a metallic material and are welded to one another by at least one laser weld seam 4. A major portion of the at least one laser weld seam 4 is located on the at least one support profile 2 at a location where the at least one holding device 3, 18 and the at least one support profile 2 come into contact with one another.
[0033] The support profile 2 has at least one laser deformation 5, 6 produced by laser light, separate from the laser weld seam 4, in the region of the at least one laser weld seam 4. A large portion of the at least one laser deformation 5, 6 is located on the at least one support profile 2 at a location where the at least one holding device 3, 18 and the at least one support profile 2 are not in contact with each other.
[0034] For example, there may be only one laser deformation 5, as illustrated in FIG. 7, or two laser deformations 5 or 6, as illustrated in FIG.
[0035] The laser deformations 5 , 6 are arranged offset with respect to the at least one laser welded seam 4 of the at least one support profile 2 .
[0036] The laser deformation 5 and the laser welded seam 4 have an intersection 7 .
[0037] The laser deformations 5 , 6 extend in a direction 8 transverse to a longitudinal direction 9 of the at least one support profile 2 over a width 10 that is greater than the at least one laser welded seam 4 .
[0038] The laser deformations 5, 6 are at least partially linear and have a zigzag shape, for example an "N" shape.
[0039] The laser welded seam 4 and the laser deformations 5, 6 are at least partially linear and have different line widths, preferably with the laser deformations 5, 6 having a larger line width than the laser welded seam 4. Such different line widths can be achieved by generating the laser welded seam 4 and the laser deformations 5, 6 with the same laser, and in this case adjusting, preferably widening, the focus of the laser after generating the laser welded seam 4 and before generating the laser deformations 5, 6.
Claims
1. A side wall (1) for a drawer, said side wall comprising at least one support profile (2) and at least one holding device (3, 18) for connecting said side wall (1) to a drawer rear wall or a drawer front wall, said support profile (2) and said holding device (3, 18) being at least partially made of a metal material and welded to one another by at least one laser welded seam (4), The side wall (1) is characterized in that the support profile (2) has at least one laser deformation (5, 6) in the area of the at least one laser welded seam (4) that is produced by laser light and is separate from the laser welded seam.
2. 2. The side wall (1) according to claim 1, wherein a majority of the at least one laser welded seam (4) is arranged at a point on the at least one support profile (2) where the at least one holding device (3, 18) and the at least one support profile (2) come into contact with each other.
3. 3. The side wall (1) according to claim 1 or 2, wherein a majority of the at least one laser-deformed portion (5, 6) is arranged in a portion of the at least one support profile (2) where the at least one holding device (3, 18) and the at least one support profile (2) are not in contact with each other.
4. 4. The side wall (1) according to claim 1, wherein the at least one laser deformation (5, 6) is arranged offset with respect to the at least one laser welded seam (4) of the at least one support profile (2).
5. 5. The side wall (1) according to claim 1, wherein the at least one laser deformation (5, 6) and the at least one laser welded seam (4) have at least one intersection (7).
6. 6. The side wall (1) according to claim 1, wherein the at least one laser deformation (5, 6) extends across a width (10) greater than the at least one laser welded seam (4) in a direction (8) transverse to the longitudinal direction (9) of the at least one support profile (2).
7. 7. The side wall (1) according to claim 1, wherein the at least one laser deformation (5, 6) is at least partially linearly shaped and / or has a zigzag shape.
8. 8. The side wall (1) according to claim 1, wherein the at least one laser welded seam (4) and the at least one laser deformation (5, 6) are at least partially linear, the laser welded seam (4) and the laser deformation (5, 6) have different line widths, and preferably the laser deformation (5, 6) has a line width greater than the laser welded seam (4).
9. 9. The side wall (1) according to claim 1, wherein the at least one holding device (3, 18) and the at least one support profile (2) are partially in contact with each other on a first side (11) of the support profile (2), and the at least one laser welded seam (4) and the at least one laser deformation (5, 6) are arranged on a second side (12) opposite the first side (11) and separated from the first side (11) by a material thickness of the support profile (2), preferably wherein in the use position of the side wall (1), the first side (11) is an upper surface of the support profile (2) facing upward, and the second side (12) is a lower surface of the support profile (2) facing downward.
10. A method for manufacturing a side wall (1) for a drawer according to any one of claims 1 to 9, said method comprising the following method steps: - welding together at least one support profile (2) and at least one holding device (3, 18) by means of at least one laser welded seam (4), and - generating laser deformations (5, 6) in the region of said at least one laser welded seam (4) by irradiation with laser light, said deformations (5, 6) being separate from said at least one laser welded seam (4); The method has the following features.
11. - the majority of said at least one laser welded seam (4) is located on said at least one support profile (2) at the point where said at least one holding device (3, 18) and said at least one support profile (2) come into contact with each other, and / or - the at least one laser deformation (5, 6) is arranged for the most part in a location of the at least one support profile (2) where the at least one holding device (3, 18) and the at least one support profile (2) are not in contact with each other, and / or - the at least one laser deformation (5, 6) is offset relative to the at least one laser welded seam (4) of the at least one support profile (2), The method of claim 10.
12. 12. The method according to claim 10 or 11, wherein the at least one laser deformation (5, 6) and the at least one laser welded seam (4) are arranged relative to one another in such a way that the laser deformation (5, 6) and the laser welded seam (4) have at least one intersection (7) and / or the at least one laser deformation (5, 6) extends over a larger width (10) than the at least one laser welded seam (4) in a direction (8) transverse to the longitudinal direction (9) of the at least one support profile (2).
13. 13. The method according to any one of claims 10 to 12, wherein the at least one laser deformation (5, 6) is formed at least partly in a linear zigzag shape.
14. 14. The method according to claim 10, wherein the at least one laser welded seam (4) and the at least one laser deformation (5, 6) are produced by the same laser, and in this case the focus of the laser is adjusted, preferably widened, after production of the laser welded seam (4) and before production of the at least one laser deformation (5, 6).
15. 15. The method according to claim 10, wherein the at least one holding device and the at least one support profile are partially in contact with each other on a first side of the support profile, and the at least one laser welded seam and the at least one laser deformation are arranged on a second side opposite the first side and separated from the first side by a material thickness of the support profile, preferably wherein in the use position of the side wall, the first side is an upper surface of the support profile facing upward and the second side is a lower surface of the support profile facing downward.
Citation Information
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