Steering wheel

Details Steering wheel Steering wheel

1989-02-14

1991-03-26

Marmor, Charles A.

Land vehicles

Wheeled

Attachment

200 6154, B60R 2116

Patent

active

050023063

ABSTRACT:
An air bag device is provided on upper side of a boss portion. The air bag device comprises an air bag, an inflater supplying gas to the air bag, a backup plate holding the air bag and the inflater, and a pad in box shape for covering the air bag. A thin breaking portion is formed on an upper wall of the pad so as to break the upper wall in state of connecting the upper wall to the side wall when the air bag is expanded, and a plurality of membrane switches comprising a pair of electrodes in thin film shape are arranged at portions of the upper wall of the pad except for the breaking portion. A connector connected to a prescribed electric circuit at lower side of the boss portion and the membrane switches are electrically connected by lead wires arranged along a pad side wall portion in state of connecting the pad upper wall when the pad upper wall is broken.

REFERENCES:
patent: 3819205 (1974-06-01), Dunford et al.
patent: 4148503 (1979-04-01), Shiratori et al.
patent: 4325568 (1982-04-01), Clark et al.
patent: 4334699 (1982-06-01), Patzelt et al.
patent: 4575117 (1986-03-01), Uchida
patent: 4578592 (1986-03-01), Nakazawa et al.
patent: 4612425 (1986-09-01), Kanai et al.
patent: 4638131 (1987-01-01), Kidd et al.
patent: 4714806 (1987-12-01), Invi et al.
patent: 4934735 (1990-06-01), Embach

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