Air bag device for vehicles

Details Air bag device for vehicles Air bag device for vehicles

1992-09-04

1993-11-16

Pape, Joseph D.

Land vehicles

Wheeled

Attachment

222 5, B60R 2126

Patent

active

052616959

ABSTRACT:
Air bag device, for use on a vehicle having collision sensing means, comprises a reservoir of pressurized fluid sealed by a frangible plate and an inflatable cushion connected to the reservoir. A striking member, having a piston at one end and a conical point at the other end, is slidably mounted in a cylinder in the reservoir. Lead styphnate and a length of electrically heated nichrome wire are positioned in the cylinder adjacent the piston. If a collision occurs, the collision sensing means sends an electrical signal, through wiring passing through a hermetic seal in the reservoir, to the length of nichrome wire which ignites the lead styphnate, generating combustion gases which bear against the piston thereby rapidly driving the conical point of the striking member into the frangible plate to shatter it, releasing pressurized fluid from the reservoir into the cushion to inflate it.

REFERENCES:
patent: 3731948 (1973-05-01), Risko
patent: 3834729 (1974-09-01), Oka et al.
patent: 5022674 (1991-06-01), Frantom et al.
patent: 5076607 (1991-12-01), Woods et al.

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