Pretensioner in a safety belt system for vehicles

Details Pretensioner in a safety belt system for vehicles Pretensioner in a safety belt system for vehicles

1992-02-04

1993-11-30

Cuchlinski, Jr., William A.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

280806, 2421074A, B60P 2246

Patent

active

052658139

ABSTRACT:
In a pretensioner for safety belt systems in vehicles a mechanical drive having a pretensioned spring is provided. The spring is held in its pretensioned state by a trigger mechanism. For initiating a pretensioning operation the spring is released by the trigger mechanism. The vehicle-sensitive sensor mass of said trigger mechanism is provided substantially by the mass of the spring itself and the smaller mass of a guide tube which receives the spring and is pivotal relatively to the bearing housing of the belt retractor against the force of a spring.

REFERENCES:
patent: 4830310 (1989-05-01), Higbee
patent: 4917210 (1990-04-01), Danicek
patent: 5149128 (1992-09-01), Fohl
patent: 5152552 (1992-10-01), Ikegaya

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