COMPOSITE COMPONENT FOR A MOTOR VEHICLE LOCKING SYSTEM

Abstract

A method for producing a composite component and to a composite component for a motor vehicle locking system, consisting of a plastic material and a metal material, the composite component being producible from granules of a plastic material with at least one metal additive admixed thereto.

Claims

1. A composite component for use as a mass inertia element for a motor vehicle locking system, the composite component comprising: a plastic material and a metal material, wherein the composite component includes granules of the plastic material with the metal material including at least one metal aggregate admixed with the granules of the plastic material.

2. The composite component according to claim 1, wherein the at least one metal aggregate includes at least one of iron and aluminum which is admixed to the plastic material.

3. The composite component according to claim 1, wherein the at least one metal aggregate includes at least one of an iron oxide and an aluminum alloy which is admixed to the plastic material.

4. The composite component according to claim 1, wherein the plastic material is a polybutylene terephthalate or a polyamide.

5. The composite component according to claim 1, wherein a degree of filling of the at least one metal aggregate of 55% by weight to 85% by weight of the composite component is admixed to the plastic material.

6. The composite component according to claim 1, wherein particles of the at least one metal aggregate have different grain sizes.

7. The composite component according to claim 6, wherein the at least one metal aggregate has particles having a grain size of less than 80 μm.

8. The composite component according to claim 1, wherein the composite component has a density of aluminum, of 2.7 g/cm.sup.3.

9. The composite component according to claim 1, wherein the composite component has a bearing point configured as an opening, and that the composite component is designed to be mass-balanced in relation to the bearing point.

10. A method for producing a composite component for use as an inertia element of a motor vehicle locking system comprising: admixing a mixture including, at least one metal additive is-admixed to a plastic material; and producing the composite component from the mixture by an injection molding process.

11. The composite component according to claim 5, wherein a degree of filling of the at least one metal aggregate of 60% percent by weight to 80% by weight of the composite component is admixed to the plastic material.

12. The composite component according to claim 5, wherein a degree of filling of the at least one metal aggregate of 65% percent by weight to 75% by weight of the composite component is admixed to the plastic material.

13. The composite component according to claim 7, wherein the at least one metal aggregate has particles having a grain size of less than 16 μm.

14. The composite component according to claim 7, the at least one metal aggregate has particles having a grain size of less than 5 μm.

15. The composite component according to claim 9, wherein the composite component is a mass inertia lever that is mass-balanced around the opening.

16. A motor vehicle lock comprising: a housing; a pin located within the housing; a sliding element located within the housing and that slides relative to the pin; and a mass inertia element that is fastened to the pin about an opening of the mass inertial element along a longitudinal axis of the pin, wherein the mass inertia element is configured as the composite component according to claim 1.

17. The motor vehicle lock of claim 16, wherein the pin has a cylindrical extension and a joining surface that provides a guiding surface for pivoting of the mass inertia element.

18. The motor vehicle lock of claim 16, wherein the pin has an extension that extends through the opening of the mass inertia element.

19. The motor vehicle lock of claim 16, wherein the pin is plastic.

Description

[0025] FIG. 1 shows an embodiment of a motor vehicle locking system having a mass inertia lever in a three-dimensional view of a motor vehicle lock, which is in some regions shown as an exploded view, and

[0026] FIG. 2 is a three-dimensional view of a mass inertia lever in an embodiment according to the invention.

[0027] FIG. 1 shows a motor vehicle lock 1 in a three-dimensional representation according to the prior art and according to DE 10 2018 116 313, only part of the components of the motor vehicle lock 1 being shown. A housing 2, a sliding element 3, a plastics pin 4 and a mass inertia element 5 are shown in FIG. 1. The mass inertia element 5 is fastened on the plastics pin 4 along an axis A, wherein the plastics pin 4 can be inserted into an opening 6 of the housing 2. An extension of the opening 7 can be seen in the opening 7, so that the plastics pin 4 can be inserted into the opening 6 in a form-fitting manner.

[0028] The plastics pin 4 has a cylindrical extension 8 that extends through the housing 2. A joining surface 9 serves, on the one hand, as a counter-bearing for, for example, riveting of the cylindrical extension 8 and, on the other hand, as a guide surface for the sliding element 3. In addition, the joining surface 9 has the task of safely guiding the mass inertia element 5 around the axis A during a pivoting movement. The plastics pin 4 has an extension 10 that extends through the mass inertia element 5. Starting from the extension extending through the mass inertia element 5, the plastics pin 4 has arms 11 that, starting from the plastics pin 4, extend outward. The arms 11 in this exemplary embodiment 3 cooperate with recesses 12 in the mass inertia element 5, so that the arms 11 can be guided through the recesses 12 in the mass inertia element 5. In this embodiment, the mass inertia element 5 serves to decouple a release lever chain in that the mass inertia element 5 counteracts an external impulse on the motor vehicle.

[0029] A mass inertia element 5 designed according to the invention is shown in FIG. 1. The mass inertia element 5 is designed to be mass-balanced around the axis A, so that natural oscillations due to vibrations, for example, can be prevented. It can be seen that the mass inertia element 5 has a complex external geometry that extends along a plane E due to the specified installation space.

[0030] The composite component 13 has a basic structure made of a plastic material 14 with additives 15 regularly arranged in the plastic material 14. As an example, an enlargement V is entered in FIG. 1 in order to illustrate the structural design of the composite component 13 by way of example. Of course, the structure of the composite component 13 made of a plastic material 14 allows very complex mass inertia elements 13, especially those adapted to the installation space, to be produced that, due to the metal additives, are comparable with those of metal mass inertia elements 5 in terms of their specific material properties.

LIST OF REFERENCE SIGNS

[0031] 1 motor vehicle lock [0032] 2 housing [0033] 3 sliding element [0034] 4 plastics pin [0035] 5 mass inertia element [0036] 6 opening [0037] 7 extension [0038] 8 cylindrical extension [0039] 9 joining surface [0040] 10 extension [0041] 11 arm [0042] 12 recess [0043] 13 composite component [0044] 14 plastic material [0045] 15 additives, aggregates [0046] A axis [0047] E plane