The invention relates to a method for producing, by machine and/or by hand, a double-walled drawer frame for a drawer consisting of an inner wall and an outer wall. The invention furthermore relates to a double-walled drawer frame and a drawer.
Double-walled drawer frames are already known from the state of the art. These are usually produced in a mechanized process. The outer wall and the inner wall of the double-walled drawer frame are brought accordingly into position in this case and are joined to each other, for example welded, glued, riveted, screwed or clinched, using a suitable joining technique.
A disadvantage of the above-named joining techniques is that they are not suitable for the manual production of a double-walled drawer frame. In addition, in the case of a mechanized production process, an additional joining device that can realize the joining technique is necessary, for example a welding device, a gluing device, a riveting device, a screwing device and/or a clinching device.
A joining of the outer wall and the inner wall to each other can likewise be realized by means of mechanical holding devices, for example such as are disclosed in WO 2013/090951 A1. Double-walled drawer frames can thus be assembled by hand and/or by machine without additional devices.
A disadvantage of this state of the art is that the mechanical holding devices typically exhibit play, which can lead to rattling when the double-walled drawer frame is used.
The object of the present invention is to avoid, at least in part, the described disadvantages of the state of the art.
There is to be created an improved method for producing a double-walled drawer frame by machine and/or by hand, an improved double-walled drawer frame and an improved drawer. The double-walled drawer frame is to be capable of being produced by hand and/or by machine without additional joining devices. Moreover, rattling, for example between outer wall and inner wall, is to be avoided.
In a method according to the invention for producing, by machine and/or by hand, a double-walled drawer frame for a drawer consisting of an inner wall and an outer wall, the following method steps, in particular carried out chronologically in the order indicated, are provided:
This constitutes a simple method for producing a double-walled drawer frame, wherein the method can be performed by hand and, if the method is performed by machine, no other joining devices are necessary. Rattling of the joined walls is prevented by the spacer parts.
In one embodiment, preferably the at least one spacer part is manufactured at least partly from an elastically compressible material.
At least one of the following additional method steps is provided:
The at least one spacer part is slightly overdimensioned, thus is larger than the distance between the outer wall and the inner wall.
Due to elastic compression of the at least one spacer part when arranging the walls, rattling of the outer wall on the inner wall is avoided, as the elastic counterforce of the at least one spacer part preloads the connection with play in one direction.
One embodiment has the following method step:
The at least one spacer part is thus fixed on the outer wall and/or on the inner wall at a point provided for this. For example, this can simplify the manual production method, as the spacer part can thus not slip.
The at least one spacer part can be formed substantially cuboid-shaped. Preferably, at least one edge is flattened, particularly preferably in a direction parallel to a longitudinal direction of the walls.
In this case the following method step is provided:
The lateral face of the cuboid-shaped spacer part constitutes a large and stable contact surface for bonding.
In one embodiment, the at least one spacer part has at least one slot, preferably wherein the opening of the at least one slot is widened in a V-shape and/or is arranged substantially in a direction parallel to a longitudinal direction of the walls.
The following method step is provided:
The at least one spacer part can thus be fixed provisionally without bonding before the outer wall is applied to the inner wall. The V-shaped widening of the opening of the at least one slot makes the introduction of the longitudinal web located on the front side easier.
The double-walled drawer frame can have at least one guide device, wherein the at least one guide device comprises:
Moreover, at least one of the following method steps can be provided:
A guided displacement of the two walls in a direction parallel to a longitudinal direction of the walls is thus realized.
In one embodiment, the at least one guide groove and/or the at least one guide web have/has at least one substantially semicircular bend of a sheet metal part, preferably wherein the radius of the at least one bend of the at least one guide groove is greater than the radius of the at least one bend of the at least one guide web.
At least one of the following method steps is also provided:
The guide web and the guide groove can thus be produced easily and cost-effectively from a sheet metal part. A groove and a mating shape adapted to the groove can thus also be created easily.
The outer wall and/or the inner wall are manufactured from sheet metal, wherein:
The production of the guide web and the guide groove is thus, furthermore, designed in a simplified and cost-effective manner.
The double-walled drawer frame comprises at least one holding device for holding the at least one guide groove on the at least one guide web, and at least one of the following method steps is provided:
The outer wall is held on the inner wall by the holding device. The double-walled drawer frame can thus be produced by hand or by machine without an additional device.
In one embodiment, the double-walled drawer frame has at least one mounting device, wherein the at least one mounting device comprises:
The outer wall can thus be mounted in the inner wall.
Furthermore, at least one of the following method steps is provided:
The outer wall is thus displaced on the inner wall in the guide device and in the mounting device.
In one embodiment, the at least one mounting web comprises at least one play compensation device to compensate for play between the at least one mounting groove and the at least one mounting web, wherein the play compensation device widens the at least one mounting web, preferably wherein the at least one play compensation device is formed as at least one projection, particularly preferably wherein the at least one projection is formed flexible and/or has lateral flanks in ramp form.
The following method steps are provided:
Play in the mounting device is thus compensated for and rattling of the outer wall on the inner wall is avoided.
The double-walled drawer frame can have at least one guide device and at least one mounting device, wherein the guide device and the mounting device are arranged in the region of two opposing long sides of the outer wall and/or inner wall. The following method step is provided:
The outer wall is guided on two opposing long sides of the inner wall and then joined. The outer wall is thus stably joined to the inner wall.
A double-walled drawer frame according to the invention for a drawer comprising an inner wall and an outer wall can be produced by the method previously described. It is provided according to the invention that at least one spacer part can be arranged between the two walls, preferably wherein the at least one spacer part can be joined to the inner wall and to the outer wall.
Due to the arrangement of the at least one spacer part, rattling of the outer wall on the inner wall is avoided.
A drawer according to the invention comprises at least one double-walled drawer frame described above, preferably wherein the drawer has a drawer base, a rear wall and/or a front panel.
Further details and advantages of the invention are explained in more detail below by means of the description of the figures with reference to the drawings, in which:
A part of a guide device 5 is visible from
In the present embodiment, the inner wall 2 is manufactured from sheet metal. The front side 9 of the double-walled drawer frame 1 is formed from the same sheet metal part as the inner wall 2. The guide groove 51 is arranged in the region of the front side 9 and likewise formed from the same sheet metal part. As all said components are formed from the same sheet metal part, a considerable cost reduction is achieved.
Located at one end of the guide device 5 is a holding device 7 for holding an outer wall 3, which has not yet been affixed.
A part of the mounting device 6 is visible from
The guide device 5 and the mounting device 6 are arranged in the region of two opposing long sides of the inner wall 2 (and/or the outer wall 3).
The remaining part of the guide device 5 and of the mounting device 6 are formed on the outer wall 3, as is visible in some of the following figures.
In
It can be provided that the spacer parts 4 are glued on the inner wall 2. These are thus fixed for the following affixing of the outer wall 3. In the case of cuboid-shaped spacer parts 4, the bonding is effected on a side wall 43 of the cuboid.
In
In
In
The guide web 52 has a substantially semicircular bend 54 of a sheet metal part, preferably wherein the radius of the at least one bend 53 of the at least one guide groove 51 is greater than the radius of the at least one bend 54 of the at least one guide web 52. The bend 54 of the guide web thus fits into the bend 53 of the guide groove 51. These are not yet arranged in each other in
The outer shape of the guide web 52 substantially corresponds to the inner shape of the guide groove 51.
The at least one guide web 52 is manufactured from the same sheet metal part as the outer wall 3, preferably from an end piece of the outer wall 3. Material and production costs are saved in this way.
In
In
In
By bringing the two walls 2, 3 closer together, the spacer parts 4 are elastically compressed. To this end the spacer parts 4 can be manufactured at least partly from an elastically compressible material. Due to the elasticity of the spacer parts 4, the outer wall 3 and the inner wall 2 are pressed apart from each other. Any play in the guide device 5 is thus compensated for in the assembled state by preloading in one direction. Rattling of the outer wall 3 on the rear attachment 13 is also avoided.
In
The guide web 52 is arranged in the guide groove 51 so that the at least one guide groove 51 encompasses the at least one guide web 52.
The at least one bend 54 of the guide web 52 is arranged in the at least one bend 53 of the guide groove 51. Here the bends 53, 54 of the guide groove 51 and the guide web 52, respectively, can rest against each other.
The mounting web 62 is arranged in the mounting groove 61 so that the at least one mounting groove 61 engages behind the at least one mounting web 62. The outer wall 3 is secured in this way against lifting off on the side of the mounting device 6.
The two walls 2, 3 are joined to each other on the two opposing long sides in the course of the displacement movement in a direction transverse to the longitudinal direction, as the guide device lies opposite the mounting device 6.
In
Here the guide web 52 is displaced in the at least one guide groove 51 in a direction parallel to a longitudinal direction of the walls 2, 3. More precisely, the at least one bend 54 of the guide web 52 is displaced in the at least one bend 53 of the guide groove 51.
The mounting web 62 is displaced in the at least one mounting groove 61 in a direction parallel to a longitudinal direction of the walls 2, 3.
The double-walled drawer frame has at least one holding device 7 for holding the at least one guide groove 51 on the at least one guide web 52. In the course of the displacement in a direction parallel to a longitudinal direction of the walls 2, 3, the at least one guide web 52 is pushed in the at least one guide groove 51 into at least one first holding device 71. The first holding device 71 is located in a first end region of the guide device 5. This is not visible in
The second holding device 72 is arranged in a second end region of the at least one guide groove (51), wherein the second end region lies opposite the first end region.
In contrast to the first holding device 71, the second holding device 72 is formed as a separate component, in particular as a retaining clip 73.
The outer wall 3 is held on the long side of the guide device 5 by the affixing of the at least one holding device 7. Together with the mounting device 6 on the opposing side, the outer wall 3 is fixed against lifting off in this way.
At least one holding device 7 can wedge the guide groove 51 and the guide web 52 into a gap formed on the respective holding device 7. The gap on a second holding device 72 formed as a retaining clip 73 can be formed by two limbs.
In at least one holding device 7, a rail 74, which is joined, fixed in place, to the guide groove 51 or the guide web 52, can hold the guide web 52 or the guide groove 51 respectively to the guide groove 51 or the guide web 53 respectively.
For example, due to the bend 53, 54 in the guide groove 51 and the guide web 52, the guide web 52 is held in the guide groove 51 by the holding device.
It is clearly visible from
The second holding device 72, which is formed as a retaining clip 73, is again visible from
It should be noted here that the configuration in
The first holding device 71 is thereby visible here, which is formed as a rail 74. A detailed view is shown in
A play compensation device 8 to compensate for play between the mounting groove 61 and the mounting web 62 is thereby visible here on the mounting device 6. This is represented enlarged by detail C in
Play between the mounting groove 61 and the mounting web 62 is compensated for by a widening on the mounting web 61. Here the play compensation device 8 is formed as a projection 81.
The projection 81 is preferably formed flexible and/or has lateral flanks 82 in ramp form.
The at least one mounting web 62 is wedged in the at least one mounting groove 61 by the play compensation device 8 and the play compensation device 8 can be compressed when the mounting web 62 is arranged in the mounting groove 61.
In
The spacer parts 4 have four slots 41. The openings of the slots 41 are widened in a V-shape and/or are arranged substantially in a direction parallel to a longitudinal direction of the walls 2, 3.
In
In a first step, at least one spacer part 4 is arranged on the inner wall 2 and/or the outer wall 3, wherein this step is not shown in
In a second step, the two walls 2, 3 are arranged substantially parallel to each other (
In a third step, the two walls 2, 3 are displaced relative to each other in a direction transverse to a longitudinal direction of the walls 2, 3 (
In a fourth step, the two walls 2, 3 are displaced relative to each other in a direction parallel to a longitudinal direction of the walls 2, 3 (
A method for producing, by machine and/or by hand, a double-walled drawer frame 1 for a drawer 14 consisting of an inner wall 2 and an outer wall 3 can have the following method steps, in particular carried out chronologically in the order indicated:
In a first method step 18, at least one spacer part 4 is arranged on the inner wall 2 and/or on the outer wall 3. The assembly state of the double-walled drawer frame 1 following the first method step 18 is shown, for example, in
In a second method step 19, the two walls 2, 3 are arranged substantially parallel to each other. The assembly state of the double-walled drawer frame 1 following the second method step 19 is shown, for example, in
In a third method step 20, the two walls 2, 3 are displaced relative to each other in a direction transverse to a longitudinal direction of the walls 2, 3. The assembly state of the double-walled drawer frame 1 following the third method step 20 is shown, for example, in
In a fourth method step 21, the two walls 2, 3 are displaced relative to each other in a direction parallel to a longitudinal direction of the walls 2, 3. The assembly state of the double-walled drawer frame 1 following the fourth method step 21 is shown, for example, in
In a fifth method step 22, the two walls 2, 3 are joined in the course of the displacement movements. The joining can be effected via holding devices 7, see
Number | Date | Country | Kind |
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A 51051/2020 | Dec 2020 | AT | national |
Number | Date | Country | |
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Parent | PCT/AT2021/060443 | Nov 2021 | US |
Child | 18200740 | US |