Seat belt tensioner

Details Seat belt tensioner Seat belt tensioner

1995-05-31

1998-06-09

Culbreth, Eric D.

Land vehicles

Wheeled

Attachment

2808011, 297480, B60R 2246

Patent

active

057623724

ABSTRACT:
A seat belt tensioner includes a wire, a spring retainer connected to a seat belt buckle by the wire, a casing within which the spring retainer is linearly movable, a primary coil spring contacting the spring retainer, a leaf spring for limiting movement of the spring retainer, a secondary coil spring, and a mass body supported relative to the spring retainer through the secondary coil spring in the direction in which an inertial force is applied. The mass body is moved against the action of the secondary coil spring when a predetermined deceleration is applied, the mass body slides and the primary coil spring is released.

REFERENCES:
patent: 4913497 (1990-04-01), Knabel et al.
patent: 5129679 (1992-07-01), Specht et al.
patent: 5290062 (1994-03-01), Fohl
patent: 5374110 (1994-12-01), Hiramatsu

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