Land vehicles – Wheeled – Attachment
Patent
1993-06-07
1995-07-04
Tyson, Karin L.
Land vehicles
Wheeled
Attachment
280735, 280736, 280737, 220201, 220583, 102481, 222 5, 222 54, 251 11, B60R 2126
Patent
active
054293863
ABSTRACT:
An air bag system (10) includes an inflator (14) containing ignitable gas generating material (60) which, when ignited, generates gas for inflating the air bag (12). The system (10) further includes a collision sensor (96), a first actuator assembly (64) and a second actuator assembly (62). The collision sensor (96) senses a predetermined amount of vehicle deceleration which is indicative of a collision, and provides a collision signal upon sensing such deceleration. The first actuator assembly (64) ignites the gas generating material (60) in response to the collision signal. The second actuator assembly (62) ignites the gas generating material (60) when the ambient temperature of the inflator (14) reaches a predetermined elevated level. The second actuator assembly (62) includes a bi-metal disk (112) which deflects from a concave shape to a relatively convex shape when the ambient temperature increases to the predetermined elevated level. When the bi-metal disk (112) deflects into the relatively convex shape, it moves a firing pin member (120) forcibly against a primer (108) to actuate the primer (108). The primer (108) then ignites the gas generating material (60).
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TRW Vehicle Safety System Inc.
Tyson Karin L.
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