Abstract
The invention relates to a method for producing a motor vehicle door lock and to said motor vehicle door lock, comprising a locking mechanism and a lock case (1) for indirectly mounting the locking mechanism, the material thickness (D) of the lock case (1), at least in the region of the mounting (14, 15) of the locking mechanism parts, being adaptable to the forces to be absorbed, and preferably having a greater material thickness (D2).
Claims
1. A motor vehicle door latch with at least one locking mechanism and a latch case for indirect accommodation of the locking mechanism, wherein the material thickness of the latch case is adjustable at least in accommodation area of the locking mechanism components to the forces to be absorbed and preferably has greater material thickness.
2. The motor vehicle door latch according to claim 1, wherein the latch case is formed as a single component, at least in the accommodation area.
3. The motor vehicle door latch according to claim 1, wherein the greater material thickness can be attained by means of a reshaping of the latch case.
4. The motor vehicle door latch according to claim 1, wherein the greater material thickness is formed from a multi-layer construction of a base area of the latch case.
5. The motor vehicle door latch according to claim 1, wherein the base area of the latch case has a material thickness of 0.8 mm to 1.5 mm, preferably 1 mm.
6. The motor vehicle door latch according to claim 1, wherein the base area of the latch case has an indent in the accommodation area.
7. The motor vehicle door latch according to claim 6, wherein the height of the indent corresponds to the material thickness of the latch case, so that preferably a surface flush with the latch case and a surface protruding beyond the latch case can be attained.
8. The motor vehicle door latch according to claim 7, wherein the flush surface or the surface protruding via the latch case forms a contact area for a functional component, in particular a catch or a pawl.
9. A procedure for production of a latch case for a motor vehicle latch, in which an opening is molded in the latch case by means of initial reshaping and the reshaped material is then embossed for formation of a multi-layer construction in the opening area.
10. A procedure according to claim 9, wherein the opening area an indent is molded into the latch case, whereby the indent has at least a surface corresponding to the multi-layer construction.
Description
[0026] The following are shown:
[0027] FIG. 1 a three-dimensional view of a latch case without a latch housing,
[0028] FIG. 2 a profile according to line II-II through the latch case formed according to the invention according to FIG. 1,
[0029] FIG. 3 a latch case as a semi-finished product, also in an area of an indent of the latch case, and
[0030] FIG. 4 the semi-finished product according to FIG. 3 after to a further procedural step.
[0031] A latch case 1 is represented in a three-dimensional view in FIG. 1. The latch case 1 is L-shaped and has a short leg 2 and a long leg 3. Naturally, the latch case 1 can also be O-shaped, so that a non-illustrated latch housing is surrounded on three sides. Starting from the short leg 2 an infeed section 4 is formed which extends into the long leg 3. The infeed section 4 accommodates the latch holder. Consequently, a latch holder which is also not illustrated can interact with a locking mechanism. In addition, openings 5, 6, 7 are provided in the latch case 1 which attach the latch case 1 to the latch housing, whereby the latch case can be connected to the latch housing with, for example, clip connections. Starting from an internal side 8 of the latch case 1, threaded bushings 9, 10, 11 are formed on the latch case 1. The threaded bushings 9, 10, 11 attach the latch case and the motor vehicle latch to the motor vehicle. The threaded bushings 9, 10, 11 can also be formed according to the invention by means of reshaping, whereby subsequently threads are cut into the bushings 9, 10, 11. In order to accommodate the non-illustrated catch and pawl, indents 12, 13 are molded into the latch case 1. Apertures 14, 15 are provided for in the indents 12, 13 to accommodate the locking mechanism components. The latch case 1 has a uniform material thickness D which extends via the long leg 3 and the short leg 2.
[0032] A profile according to line II-II from FIG. 1 is reproduced in FIG. 2. In the accommodation area 14 the reshaping forms an embossed area 16, which forms a flush surface 17 with the latch case 1 in this design example. The indent 12 and the embossed area 16 demonstrate greater material thickness D2 which corresponds to double the material thickness of the latch case 1 in the present design example. As is apparent from FIG. 1 and FIG. 2, the indent 12 has an indent diameter A which extends beyond the embossed area 16. However, according to the invention it is also possible that the embossed area 16 and the indent diameter A demonstrate a uniform size so that an almost closed flush surface 17 of the latch case is formed. It is also clearly apparent from FIG. 2 that the accommodation area 14 has an almost uniform diameter over the entire extent of the accommodation area 14. Consequently, a higher contact ratio is provided for the accommodation area 14.
[0033] The design example according to FIG. 2 shows the embossed area in a direction opposite the short leg 2. It is naturally also possible to form the embossed area 16 in the direction of the short leg 2. If no indent 12 is inserted into the latch case 1 here, the embossed area 16 forms an elevation which forms an elevation of material thickness D over the material thickness D of the latch case. By selecting the diameter of the indent A and/or the size of the embossed area 16 it is thus possible to provide different contact surfaces according to the arrangement of the embossed area 16 to the locking mechanism or also other functional components.
[0034] In FIG. 3, a semi-finished product 18 is illustrated which forms a starting component for manufacture of a latch case 1 according to FIG. 1. An indent 12 corresponding in its depth to the material thickness D of the latch case 1 is molded into the semi-finished product 18 and preferably molded by means of deep-drawing which.
[0035] FIG. 4 shows the semi-finished product 18 after a further reshaping process, whereby an accommodation area 14 was molded into the semi-finished product 18 using deep-drawing. The reshaping process caused a material overhang 19 to occur which protrudes over the flush surface 17 of the semi-finished product 18. In a further deformation step the material overhang 18 is then embossed or folded over. Consequently, a latch case according to FIG. 2 is formed.
LIST OF REFERENCES
[0036] Latch case 1 [0037] Short leg 2 [0038] Long leg 3 [0039] Infeed section 4 [0040] Opening 5, 6, 7 [0041] Internal side 8 [0042] Threaded bushings 9, 10, 11 [0043] Indent 12, 13 [0044] Aperture, accommodation area 14, 15 [0045] Embossed area 16 [0046] Flush surface 17 [0047] Semi-finished product 18 [0048] Material overhang 19 [0049] Material thickness D [0050] Thickness D2 [0051] Indent diameter A
