Steering wheel protected against electro-static discharges

Patent metadata

Field	Value
Publication number	US-9717136-B2
Application number	US-201314019837-A
Country	US
Kind code	B2
Filing date	Sep 6, 2013
Priority date	Sep 6, 2013
Publication date	Jul 25, 2017
Grant date	Jul 25, 2017

Abstract

A steering wheel for a vehicle may include a frame, a foam layer, a decorative member, a switch assembly and a contact element. The frame may include a central hub, a rim, and a spoke extending between the central hub and the rim. The foam layer may encase at least a portion of the frame. The decorative member may be mounted to the frame and may be at least partially formed of an electrically conductive material. The switch assembly may be mounted to the decorative member. The contact element may extend from the decorative member and may contact the frame to electrically connect the electrically conductive material of the decorative member with the frame.

First claim

What is claimed is:

1. A steering wheel comprising:
a frame including a central hub, a rim, and a spoke extending between the central hub and the rim;
a foam layer encasing at least a portion of the frame;
a decorative member mounted to the frame and at least partially formed of an electrically conductive material;
a switch assembly mounted to the decorative member; and
a contact element extending from the decorative member and contacting the frame to electrically connect the electrically conductive material of the decorative member with the frame.

2. The steering wheel of claim 1 , wherein the contact element extends through an opening in the foam layer.

3. The steering wheel of claim 2 , wherein the foam layer encases the spoke.

4. The steering wheel of claim 1 , wherein the contact element directly contacts the frame.

5. The steering wheel of claim 1 , wherein the contact element includes a central portion and first and second legs extending from opposing ends of the central portion.

6. The steering wheel of claim 5 , wherein the central portion is attached to and directly contacts the decorative member.

7. The steering wheel of claim 6 , wherein the first and second legs extend through first and second openings, respectively, in the foam layer.

8. The steering wheel of claim 6 , wherein the central portion engages the decorative member by a snap fit.

9. The steering wheel of claim 5 , wherein the first and second legs are resiliently flexible.

10. The steering wheel of claim 1 , wherein the contact element contacts the spoke and the switch assembly is mounted to another spoke.

11. The steering wheel of claim 1 , wherein the contact element is configured to transmit an electro-static discharge from the decorative member to the frame.

12. The steering wheel of claim 1 , wherein the decorative member is formed from a metallized plastic.

13. The steering wheel of claim 1 , wherein the contact element is integrally formed with the decorative member.

14. A steering wheel comprising:
a frame including a central hub, a rim, and a plurality of spokes extending between the central hub and the rim;
a decorative member mounted to the spokes and at least partially formed of an electrically conductive material;
a foam layer encasing the spokes and disposed between the decorative member and the spokes;
a switch assembly mounted to the decorative member; and
a contact element attached to the decorative member and extending through an opening in the foam layer to contact the frame and transmit an electro-static discharge from the electrically conductive material of the decorative member to the frame.

15. The steering wheel of claim 14 , wherein the contact element includes a central portion and first and second legs extending from opposing ends of the central portion.

16. The steering wheel of claim 15 , wherein the central portion is attached to and directly contacts the decorative member.

17. The steering wheel of claim 16 , wherein the first leg extends through the opening in the foam layer and the second leg extends through another opening in the foam layer.

18. The steering wheel of claim 17 , wherein the first and second legs are resiliently flexible.

19. The steering wheel of claim 18 , wherein the contact element contacts a first one of the plurality of spokes and the switch assembly is mounted to a second one of the plurality of spokes.

20. The steering wheel of claim 19 , wherein the decorative member is formed from a metallized plastic.

Assignees

• Autoliv Dev

Inventors

• Simonet Yann
• Degert Olivier

Classifications

• H05F3/02 Primary

  by means of earthing connections · CPC title

• B62D1/046 Primary

  Adaptations on rotatable parts of the steering wheel for accommodation of switches · CPC title

• B60R16/06

  for removing electrostatic charges (carrying-off electrostatic charges in general H05F3/00) · CPC title

• Y10T74/20256

  Steering and controls assemblies · CPC title