Automobile Steering Wheel

Patent metadata

Field	Value
Publication number	US-2017166156-A1
Application number	US-201515325738-A
Country	US
Kind code	A1
Filing date	May 13, 2015
Priority date	Jul 15, 2014
Publication date	Jun 15, 2017
Grant date	—

Abstract

A steering wheel of a vehicle includes a steering wheel armature made of metal, a steering wheel rear cover made of plastic, and an airbag module. The steering wheel rear cover is located on a bottom of the steering wheel armature and the airbag module is mounted above the steering wheel armature. An Ω spring assembles the airbag module onto the armature. At least a supporting rib extends from the steering wheel rear cover and is located between the Ω spring and the steering wheel armature for supporting the Ω spring. The supporting rib erases a gap between the Ω spring and the steering wheel armature and it is formed by plastic, thereby reducing noise efficiently.

First claim

1 - 8 . (canceled)

9 . A steering wheel of a vehicle comprising:
a steering wheel armature made of metal; a steering wheel rear cover made of plastic, the steering wheel rear cover is located on a bottom of the steering wheel armature; an airbag module airbag module mounted above the steering wheel armature with two hooks extending downward from the airbag module and inserting into the steering wheel armature; a Ω spring provided to assemble the airbag module onto the steering wheel armature, two free ends of the Ω spring engage with the two hooks; and at least a supporting rib for supporting the Ω spring extend from the steering wheel rear cover and located between the Ω spring and the steering wheel armature.

10 . The steering wheel of the vehicle of claim 9 , wherein a spring clamping groove and a spring stopping bridge are formed on the steering wheel armature, and the Ω spring includes a middle section hung on the spring clamping groove, two side sections pressed by the spring stopping bridge, and two free ends contacting the ribs.

11 . The steering wheel of the vehicle of claim 10 , comprising four spring stopping bridges, wherein every two spring stopping bridges press one side section of the Ω spring.

12 . The steering wheel of the vehicle of claim 9 , wherein at least a supporting rib extends from the steering wheel rear cover, and extends above the steering wheel armature.

13 . The steering wheel of the vehicle of claim 12 , wherein the steering wheel armature has inserting holes into which the hooks are inserted, and the inserting holes provide a space for the extension of the supporting rib.

14 . The steering wheel of the vehicle of claim 9 , wherein the supporting rib is in shape of long strip.

15 . The steering wheel of the vehicle of claim 9 , wherein the Ω spring is made of metal.

16 . The steering wheel of the vehicle of claim 9 , wherein two supporting ribs extend from the back cover to support two free ends of the Ω spring, respectively.

Assignees

• Autoliv Dev

Inventors

• Li Chunyu
• Bu Songlin
• Jiang Zhiyong

Classifications

• B60R21/203 Primary

  in steering wheels or steering columns · CPC title

• B60R21/2035

  using modules containing inflator, bag and cover attachable to the steering wheel as a complete sub-unit (steering wheel covers with tear lines B60R21/21656; assembling of modules B60R21/217) · CPC title

• B62D1/04

  Hand wheels · CPC title