GUIDE RAIL FOR A PULL-OUT GUIDE FOR A DRAWER
A drawer pull-out guide includes at least one guide rail. The guide rail includes a longitudinally extending first limb and at least one longitudinally extending second limb angled from the first limb, the first limb and the second limb being connected to one another along their longitudinal direction by an angled region. The angled region includes at least one material diminution extending along the angled region and being formed by a recess.
The present invention relates to a drawer pull-out guide comprising at least one guide rail. The guide rail includes a longitudinally extending first limb and at least one longitudinally extending second limb angled from the first limb, and the first limb and the second limb are connected to one another along their longitudinal direction by an angled region.
Moreover, the invention concerns a drawer pull-out guide comprising at least one guide rail of the type to be described, and a method for producing a guide rail for a drawer pull-out guide.
Such guide rails are used for drawer pull-out guides, so that a drawer can be supported so as to be extendable relative to a furniture carcass in a mounted position. The drawer pull-out guides usually include a first guide rail configured to be fixed to a furniture carcass, and at least one second guide rail configured to be displaceable relative to the first guide rail. In order to enable the drawer to be fully extended relative to the furniture carcass, a displaceably supported third guide rail may be arranged. For supporting the displaceable guide rails, rolling bodies are provided, the rolling bodies being supported in a running carriage or also in a plurality of displaceable running carriages. By specially formed guide rails, the stability and the loading capacity of the drawer pull-out guide can be improved. When using large material thicknesses for the guide rails, the guide rails form a round angled region, whereby an increased installation space has to be provided.
SUMMARY OF THE INVENTIONIt is an object of the invention to propose a more compact guide rail of a drawer pull-out guide, thereby avoiding the above-discussed drawbacks.
According to the invention, the angled region includes at least one material diminution extending along the angled region and formed by a recess.
In other words, in an angled region enclosed by the two limbs of the guide rail (that is to say, on an inner side or on an inner radius of the angled region between the two limbs), at least one material diminution, formed by a recess, having a reduced material thickness is provided. The two limbs are angled to one another about a notional axis extending in a longitudinal direction of the recess. By the material diminution formed by the recess, a compression caused by compressive stress on the inside of the angled region can be prevented when the guide rail is produced by a bending or roll forming operation. As a result, the limbs can be angled to one another to a larger extent, for example in such a way that the two limbs adopt not only an angle of 90°, but also an angle of 180° relative to one another. In this way, the angled region can be configured so as to be more sharp-edged, and the guide rail can be produced with a more compact design.
A particular advantage of the invention lies in the fact that by the proposed measure, the flat running surfaces of the guide rails provided for the contact with the rolling bodies can be enlarged. Therefore, while maintaining the size of the guide rail, wider rolling bodies can be utilized and, as a result, the occurring forces can be distributed over a larger area. In this way, the stability and the loading capacity of the drawer pull-out guide can be additionally improved.
Thereby, the first limb and/or the second limb has or have a predetermined first material thickness, and the material diminution formed by the recess of the angled region has a reduced second material thickness in relation to the first material thickness. The definition “first material thickness” relates to the thickness of the raw material of the guide rail, without considering possible embossments or bends of the guide rail.
The at least one recess can extend at least over a region, preferably over substantially an entire length of the guide rail, in the longitudinal direction of the guide rail. Thereby, the recess is configured as a groove.
According to an embodiment, the first limb and the second limb, in a region outside the recess, bear against one another at least over a region. This is, in particular, the case when the two limbs are angled relative to one another by 180°.
The drawer pull-out guide according to the invention is characterized by at least one guide rail of the described type. The drawer pull-out guide includes a first guide rail configured to be fixed to a furniture carcass, and at least one second guide rail displaceably supported relative to the first guide rail. At least one rolling body is arranged between the first guide rail and the second guide rail, and the at least one rolling body is configured to run along the first limb or on the second limb of a guide rail.
The method according to the invention for producing a guide rail for a drawer pull-out guide is characterized by the following steps:
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- a longitudinally extending material strand is provided,
- at least one recess in the form of a material diminution is inserted in the material strand, preferably by a roll forming operation, the at least one recess extending in the longitudinal extension of the material strand,
- the material strand is deformed or bent in the region of the recess, whereby a first limb and a second limb angled from the first limb are formed, and the recess is arranged in an angled region enclosed by the first limb and by the second limb.
Further details and advantages of the invention will be explained in the following description of figures, in which:
Taking the example of the second guide rail 10, the invention will now be explained in greater detail. The second guide rail 10 includes a first limb 10a and at least one second limb 10b, the first limb 10a and the second limb 10b being connected to one another by an angled region 23. The angled region 23 includes a material diminution formed by a recess 21 extending along the angled region 23. Each of the first limb 10a and/or the second limb 10b can have a predetermined first material thickness, whereas the angled region 23 enclosed by the two limbs 10a, 10b is provided with at least one recess 21, so that the angled region 23 has a reduced second material thickness in relation to the limbs 10a, 10b. As shown in
According to an embodiment, it can be provided that the at least one guide rail 10, in a mounted position of the drawer pull-out guide 4, includes a substantially vertically extending portion 24, and the first limb 10a protrudes transversely, preferably at a right angle, in a first direction from the vertically extending portion 24 of the guide rail 10. The second limb 10b protrudes transversely, preferably substantially at a right angle, from the vertically extending portion 24 in a second direction, opposing the first direction. Moreover, it can be provided that the first limb 10a and the second limb 10b of the at least one guide rail 10 are configured so as to have a different length. It can be preferably provided that the second limb 10b has a length being at least three times as long as a length of the first limb 10a.
Exemplary embodiments:
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- the material thickness M1 lies between 0.5 mm and 3 mm, preferably between 1 mm and 2 mm,
- the reduced material thickness M2 lies between 0.3 mm and 2 mm, preferably between 0.7 mm and 1.5 mm,
- the reduced material thickness M2 is smaller than 0.75, preferably smaller than 0.5, multiplied with the material thickness M1,
- the width of the running surface B1 lies between 4 mm and 7 mm, preferably between 5 mm and 6 mm,
- the width of the running surface C1 lies between 2 mm and 5 mm, preferably between 3 mm and 4 mm.
The guide rail 10 can include a third limb 10c and a fourth limb 10d which are connected to one another by a second angled region 23a. The second angled region 23a can have a second material diminution formed by a second recess 21b. Likewise, the guide rail 10 can have a fifth limb 10e and a sixth limb 10f which are connected to one another by a third angled region 23b. The third angled region 23b can have a third material diminution formed by a third recess 21a. The limbs 10a, 10b, 10c, 10d, 10e, 10f arranged adjacent to one another can each be angled to one another by an angle of approximately 45°, 90° or 180°.
Claims
1. A drawer pull-out guide comprising at least one guide rail, the guide rail including a longitudinally extending first limb and at least one longitudinally extending second limb angled from the first limb, the first limb and the second limb being connected to one another along their longitudinal direction by an angled region, wherein the angled region includes at least one material diminution extending along the angled region and being formed by a recess.
2. The drawer pull-out guide according to claim 1, wherein the first limb and/or the second limb has or have a predetermined first material thickness, wherein the material diminution of the angled region formed by the recess has a reduced second material thickness in relation to the first material thickness.
3. The drawer pull-out guide according to claim 1, wherein the at least one recess extends substantially over an entire length of the guide rail.
4. The drawer pull-out guide according to claim 1, wherein the at least one recess is configured as a groove.
5. The drawer pull-out guide according to claim 1, wherein the at least one recess, in a cross-section perpendicular to a longitudinal direction of the guide rail, includes at least one concave portion.
6. The drawer pull-out guide according to claim 1, wherein the first limb and the second limb are angled to one another by an angle of approximately 90° or approximately 180°.
7. The drawer pull-out guide according to claim 1, wherein the first limb and the second limb, in a region outside the at least one recess, at least partially bear against one another.
8. The drawer pull-out guide according to claim 1, wherein at least one rolling body is configured to run along the first limb and at least one rolling body is configured to run along the second limb of the guide rail.
9. The drawer pull-out guide according to claim 1, wherein the guide rail includes a plurality of angled regions having material diminutions formed by recesses.
10. The drawer pull-out guide according to claim 1, wherein the drawer pull-out guide includes a first guide rail configured to be fixed to a furniture carcass, and at least one second guide rail displaceably supported relative to the first guide rail.
11. The drawer pull-out guide according to claim 10, wherein a plurality of rolling bodies is arranged between the first guide rail and the second guide rail, the rolling bodies being supported in or on a common running carriage.
12. The drawer pull-out guide according to claim 11, wherein the rolling bodies have a vertically extending rotational axis in the mounted position and/or a horizontally extending rotational axis in the mounted position.
13. The drawer pull-out guide according to claim 1, wherein the at least one guide rail includes a substantially vertically extending portion in a mounted position of the drawer pull-out guide, the first limb protruding transversely in a first direction from the vertically extending portion of the guide rail, and the second limb protruding transversely in a second direction, opposing the first direction, from the vertically extending portion of the guide rail.
14. The drawer pull-out guide according to claim 1, wherein the first limb and the second limb of the at least one guide rail are configured so as to have a different length, wherein it is preferably provided that the second limb has a length being at least three times as long as a length of the first limb.
15. A method for producing a guide rail of the drawer pull-out guide according to claim 1, comprising the following steps:
- providing a longitudinally extending material strand,
- inserting at least one recess in the form of a material diminution in the material strand, preferably by a roll forming operation, the at least one recess extending in the longitudinal extension of the material strand,
- deforming or bending the material strand in a region of the recess, whereby a first limb and a second limb angled from the first limb are formed, and the recess is arranged in an angled region enclosed by the first limb and the second limb.
Type: Application
Filed: Jul 8, 2020
Publication Date: Oct 29, 2020
Inventors: Marc MEUSBURGER (Egg), Martin SCHNEIDER (Hard), Pascal BERCHTOLD (Alberschwende), Helmut SCHOENFELDER (Altach)
Application Number: 16/923,307