Steering switch assembly structure

6639160
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Inventors

Ibe, Shoichi
Imai, Keisuke

Application #

977992

Filed

Oct-17-2001

Published

Oct-28-2003

Current US Class

200/61.54
200/61.57
341/20

International Classes

H01H 009/00

Field of Search

200/61.54 200/61.55 200/61.57 280/728.2 280/731 74/552 74/484 341/20 341/22 340/425.5

Assignee

Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho (JP)

Examiners

Easthom; Karl D.

Attorney, Agent or Firm

Nixon Peabody LLP, Cole; Thomas W.

US Patent References

4872364   Steering wheel
5023412   Horn switch on stee...
5508481   Steering wheel with...
5947509   Airbag inflator with...
6086090   Vehicle steering wh...
6312012   Steering wheel with...

Referenced by:

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Citation

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Abstract
A steering switch assembly structure which facilitates mounting of a pad member and switch assemblies to a metal core of a steering wheel, and which reduces assembly steps and is low in cost. The pad member is disposed between first leg pieces and second leg pieces on a bracket, compression coil springs are arranged between mount pieces of the pad member and the second leg pieces. In this state, the first leg pieces are inserted into mount slots of the switch assemblies. When the mount pieces are moved against elastic force of the springs and brought into contact with horn contacts, a horn device is actuated. The pad member is engaged by bottom surfaces of the switch assemblies, and is prevented from falling off the bracket, which is secured to the metal core, in a direction of separation from the bracket, without use of any further fastening means.
 
Claims
What is claimed is:

1. A steering switch assembly structure comprising:

a metal core of a steering wheel having a first leg piece and a second leg piece spaced a predetermined distance from the first leg piece;

a horn pad having a projection capable of translatory reciprocal movement between the first leg piece and the second leg piece;

an elastic element interposed between the projection and the second leg piece for urging the projection in a direction of the reciprocal movement toward the first leg piece; and

a switch assembly mounted at the first leg piece and against which the projection is caused to constantly abut by urging of the elastic element.



Description
BACKGROUND OF THE PRESENT INVENTION

1. Field of the Present Invention

The present invention relates to an assembly structure by which a pad member, which serves as an operation switch for an alarm horn device, and switch assemblies at a peripheral edge of the pad member are mounted to a steering device on a vehicle.

2. Description of the Prior Art

Steering devices include one provided with an airbag device. In such a steering device, a bag body, an inflator and the like, which constitute the airbag device, are housed in a pad member, and the pad member is mounted to a metal core of a steering wheel.

In view of reduction in the number of parts and assembly steps, there is a steering device in which the above-mentioned pad member serves as an operation switch for an alarm horn device. With such a steering device, the pad member is detachably mounted on the metal core, with coil springs between it and the metal core, and displacement of the pad member relative to the metal core causes alarm contacts to be closed so that an alarm is issued from the alarm horn device. The pad member and the metal core are connected to each other to be capable of displacement, such as by threading male screws into female threads provided in a base plate of the pad member in a state in which the male screws are inserted through holes provided in the metal core, heads of the male screws are engaged by peripheral edges of the holes, and the male screws are inserted through coil springs.
 
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