Cover for a vehicle air bag

Details Cover for a vehicle air bag Cover for a vehicle air bag

1997-07-18

2000-10-03

Thomas, Alexander

Stock material or miscellaneous articles

Sheet, web, or layer weakened to permit separation through...

428217, 2807281, 2807431, B60R 2116

Patent

active

RE0368989

ABSTRACT:
A cover for a vehicle air bag comprises an external surface layer injection-molded from a thermoplastic material having a JIS-A hardness of 20 to 90 and a core layer injection-molded from a thermoplastic material having a bending elastic modulus (JIS K 7203) of not less than about 1000 kg/cm.sup.2 and a hardness greater than that of the surface layer. The core has weakened zones along which the cover breaks when the air bag is inflated.

REFERENCES:
patent: 3819205 (1974-06-01), Dunford et al.
patent: 4120516 (1978-10-01), Takamatsu et al.
patent: 4148503 (1979-04-01), Shiratori et al.
patent: 4836576 (1989-06-01), Werner et al.
patent: 4895389 (1990-01-01), Pack, Jr.
patent: 4903986 (1990-02-01), Cok et al.
Photographs H1-H8, GM Oldsmobile Airbag Cover, see applicant's cover letter for discussion of date Dec. 7, 1989.

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