Deformation element for a motor vehicle seat

Patent metadata

Field	Value
Publication number	US-10315541-B2
Application number	US-201515507694-A
Country	US
Kind code	B2
Filing date	Aug 19, 2015
Priority date	Sep 2, 2014
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

A deformation element for a motor vehicle seat, which element is intended to be arranged on a subassembly of a motor vehicle seat, having a base member, a deformation portion which is formed on the base member and on which the deformation element can be deformed and/or destroyed under the action of an external force, and a force introduction region by means of which a structural element of a motor vehicle seat can be brought into operational connection with the deformation portion so that a force acting on that structural element can be introduced via the force introduction region into the deformation portion. The deformation portion is formed by means of partial deformation of the material of the deformation element and at the transition of the deformation portion to the base member of the deformation element there is a weakening region which defines at least one tear line.

First claim

The invention claimed is:

1. A deformation element to be arranged on a subassembly of a motor vehicle seat, the deformation element comprising:
a base member;
a deformation portion on the base member and which is deformable or destroyable under an external force; and
a force introduction region configured to establish an operative connection between a structural element of a motor vehicle seat and the deformation portion so that a force acting on said structural element is introduced via the force introduction region into the deformation portion,
wherein the deformation portion is formed by partial deformation of the material of the deformation element, wherein the deformation portion is integrally connected to the base member along at least one connection line, wherein the deformation element, at the connection line, comprises a thickness less than the thickness of the deformation portion adjacent to the connection line such that at the transition of the deformation portion to the base member a weakening region defining at least one tear line is formed, the deformation element being configured to tear under an external force along the at least one tear line.

2. The deformation element as claimed in claim 1 , wherein the deformation portion is formed by partial deformation of the material of the deformation element under pressure.

3. The deformation element as claimed in claim 1 , wherein the deformation portion is formed by shearing.

4. The deformation element as claimed in claim 3 , wherein the at least one connection line is formed by a shearing edge.

5. The deformation element as claimed in claim 1 , wherein the deformation portion is connected outside the force introduction region via a connection region whose thickness is less than the thickness of the deformation portion adjacent to the connection region to form the weakening region with the base member of the deformation element.

6. The deformation element as claimed in claim 1 , wherein the base member of the deformation element is planar and is delimited by a peripheral outer edge.

7. The deformation element as claimed in claim 1 , wherein the deformation portion protrudes beyond the base member thereof transversely relative to a face along which the deformation element extends.

8. The deformation element as claimed in claim 1 , wherein the base member and the deformation portion of the deformation element have substantially the same thickness.

9. A seat subassembly of a motor vehicle seat having a deformation element as claimed in claim 1 .

10. The seat subassembly as claimed in claim 9 , wherein the deformation element is secured to a structural element of the seat subassembly and wherein another structural element of the seat subassembly is in engagement with the force transmission region of the deformation element.

11. The seat subassembly as claimed in claim 9 , wherein the deformation element is integrated in a seat adjustment device.

12. The seat subassembly as claimed in claim 11 , wherein a structural element in the form of an adjustment element of the adjustment device is in engagement with the force introduction region of the deformation element so that, when crash forces occur on the adjustment element, a force can be introduced into the deformation portion of the deformation element and, in the event of a deformation and/or destruction of the deformation portion, the adjustment element can be moved along the deformation portion.

13. The seat subassembly as claimed in claim 12 , wherein the deformation element is secured to a bearing component of the adjustment device.

14. The seat subassembly as claimed in claim 13 , wherein the deformation element is located between the structural element in the form of an adjustment element and the bearing component.

15. A deformation element to be arranged on a subassembly of a motor vehicle seat, the deformation element comprising:
a base member;
a deformation portion which is formed on the base member and which is deformable or destroyable under an external force;
a force introduction region configured to establish an operative connection between a structural element of a motor vehicle seat and the deformation portion so that a force acting on said structural element is introduced via the force introduction region into the deformation portion; and
a carrier component,
wherein the base member of the deformation element is welded to the carrier component and is configured to be fastened together with the carrier component to a subassembly of the motor vehicle seat,
wherein the deformation element and the carrier element are placed on top of each other and extend along parallel planes.

16. The deformation element as claimed in claim 15 , wherein the carrier component is planar and is delimited by a peripheral outer edge.

17. The deformation element as claimed in claim 16 , wherein the base member and the carrier component are connected to each other at the respective outer edge thereof in a materially engaging manner.

18. The deformation element as claimed in claim 15 , wherein an opening in the carrier component extends along the deformation portion of the deformation element.

Assignees

• Brose Fahrzeugteile

Inventors

• Kostin Sergej

Classifications

• B60N2/161

  Rods · CPC title

• B60N2/42709 Primary

  involving residual deformation or fracture of the structure · CPC title

• B60N2/4228

  due to impact coming from the rear · CPC title

• B60N2/165 Primary

  Gear wheel driven mechanism · CPC title

• B60N2/42727

  involving substantially rigid displacement · CPC title