Assembly for a motor vehicle with an auxiliary frame and an impact absorption structure

Patent metadata

Field	Value
Publication number	US-10005495-B2
Application number	US-201615344804-A
Country	US
Kind code	B2
Filing date	Nov 7, 2016
Priority date	Nov 9, 2015
Publication date	Jun 26, 2018
Grant date	Jun 26, 2018

Abstract

The disclosure relates to an assembly for a motor vehicle with an auxiliary frame to connect to a wheel suspension, whereby the auxiliary frame may be constructed in a shell construction having an upper shell and a lower shell. The shells may enclose an internal shell space and be rigidly connected to each other. The assembly may also comprise a shock-absorbing structure. The shock-absorbing structure can be fully or partially integrated in the internal shell space of the auxiliary frame in the form of an insert and immovably positioned within it.

First claim

The invention claimed is:

1. An assembly for connecting to a wheel suspension of a motor vehicle, comprising:
an auxiliary frame comprising an upper shell and a lower shell, wherein the upper shell and the lower shell enclose an internal shell space and are rigidly joined together; and
a shock-absorbing structure fully or partially integrated in the internal shell space and immovably positioned within the auxiliary frame.

2. The assembly of claim 1 , wherein the shock-absorbing structure comprises at least one shock-absorbing element longitudinally oriented in the x-direction of the assembly.

3. The assembly of claim 2 , wherein the at least one shock-absorbing element comprises:
a first shock-absorbing element and a second shock-absorbing element longitudinally oriented in the x-direction of the assembly;
wherein the first and second shock-absorbing elements are spaced apart from each other across a central longitudinal axis running in the x-direction of the assembly, the first and second shock-absorbing elements positioned closer to an end of the auxiliary frame than the central longitudinal axis in the y-direction of the assembly.

4. The assembly of claim 3 , wherein the first and second shock-absorbing elements are positioned in the x-direction to each align with at least part of a side member of a vehicle.

5. The assembly of claim 4 , wherein the shock-absorbing structure further comprises a third shock-absorbing element positioned along the central longitudinal axis between the first and second shock-absorbing elements.

6. The assembly of claim 2 , wherein the shock-absorbing structure further comprises a shock-absorbing element support longitudinally oriented in the y-direction of the assembly, the at least one shock-absorbing element connected to the shock-absorbing element support at a first end, the first end opposite a second end of each of the at least one shock-absorbing element, the second end configured to receive the brunt of an impact.

7. The assembly of claim 6 , wherein the shock-absorbing element support is constructed in a C-shape structure, the at least one shock-absorbing element attached to the shock-absorbing element support on a side opposite the opening of the C-shape structure.

8. The assembly of claim 6 , wherein the at least one shock-absorbing element rests against the shock-absorbing element support and is supported by a front wall of the shock-absorbing element support.

9. The assembly of claim 6 , wherein the at least one shock-absorbing element is at least partially inserted into the shock-absorbing element support and supported on a rear wall.

10. The assembly of claim 1 , wherein the shock-absorbing structure comprises:
at least two shock-absorbing elements oriented in the x-direction of the assembly and positioned to align with at least a section of a side member of a vehicle, the at least two shock-absorbing elements bent at a right-angle in the y-direction, and
wherein the at least two shock-absorbing elements point in a direction of impact to be absorbed, and the at least two shock-absorbing elements are joined together by a shock-absorbing element support, the shock-absorbing element support designed as a crossmember.

11. The assembly of claim 6 , wherein the at least one shock-absorbing element and the shock-absorbing element support are made from the same material.

12. The assembly of claim 10 , wherein the at least two shock-absorbing elements and the shock-absorbing element support are made from the same material.

13. The assembly of claim 6 , wherein the at least one shock-absorbing element is connected to the shock-absorbing element support by means of a joint.

14. The assembly of claim 10 , wherein the at least two shock-absorbing elements are connected to the shock-absorbing element support by means of a joint.

15. The assembly of claim 1 , wherein the shock-absorbing structure is immovably positioned in the auxiliary frame by at least one instance of positive locking in the internal shell space, the at least one instance of positive locking provided by the upper shell, the lower shell, and/or a holding element penetrating the auxiliary frame.

16. The assembly of claim 1 , wherein the upper and lower shells are made of a different material from the shock-absorbing structure.

17. The assembly of claim 1 , wherein the auxiliary frame is constructed in a C-shape which opens opposite from the forward direction of travel of a vehicle.

18. The assembly of claim 6 , wherein the at least one shock-absorbing element is at least partially inserted into the shock-absorbing element support and supported in part on a front wall of the shock-absorbing element support.

Assignees

• Kirchhoff Automotive D Gmbh

Inventors

• Töller Marco
• Bartzik Josef
• Günther Alexander

Classifications

• B60Y2306/01

  Reducing damages in case of crash, e.g. by improving battery protection · CPC title

• B60Y2410/121

  Metal parts manufactured by moulding · CPC title

• B62D21/155 Primary

  Sub-frames or underguards · CPC title

• B62D29/008

  predominantly of light alloys, e.g. extruded · CPC title

• B62D21/11 Primary

  with resilient means for suspension {, e.g. of wheels or engine; sub-frames for mounting engine or suspensions} · CPC title