Control mechanism for pretensioners in vehicles

Details Control mechanism for pretensioners in vehicles Control mechanism for pretensioners in vehicles

1991-04-16

1992-09-22

Skaggs, H. Grant

Land vehicles

Wheeled

Attachment

280806, 73514, 180282, B60R 2132

Patent

active

051491281

ABSTRACT:
For controlling a pretensioner of a gas-bag restraining system in vehicles a vehicle-sensitive inertia mass is pivotally mounted in a housing. A strike piece pivotally mounted in the housing and spring-loaded in the direction of a firing pin bears via a roller mounted easily movably thereon on a cam face of the inertia mass. The configuration of the cam face, the path of movement of the roller on a pivot movement of the spring-loaded strike piece and the direction of movement of the inertia mass are adapted to each other in such a manner that the triggering criteria of an electronic trigger circuit integrating the deceleration values above a predetermined threshold with respect to time are simulated. By employing rolling bearings and by the hermetic sealing of the housing the triggering parameters remain unchanged for a long time.

REFERENCES:
patent: 2267295 (1941-12-01), Balton
patent: 2979582 (1961-04-01), Weaver
patent: 3240510 (1966-03-01), Spouge
patent: 4513629 (1985-04-01), Keller et al.
patent: 4747562 (1988-05-01), Tsukamoto et al.
patent: 4999004 (1991-03-01), Skanberg et al.

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