Seat belt retractor

Details Seat belt retractor Seat belt retractor

1992-12-04

1994-03-15

Stodola, Daniel P.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

2421074B, B60R 2238

Patent

active

052940705

ABSTRACT:
A seat belt retractor is of a type having an emergency locking mode and an auto-locking mode. The retractor comprises a take-up shaft on which a webbing is wound. A ratchet wheel is connected to the take-up shaft to rotate therewith, and an annular cam member is connected to the take-up shaft through a speed reduction mechanism. The cam member has a first group of projections formed thereon. A switching arm is pivotally arranged in such a manner that a second group of projections formed thereon are engageable with the first group of projections. A toggle spring is used for biasing the switching arm in a given direction. A pivotal tooth member is actuated by the switching arm and engageable with the ratchet wheel. The pivotal tooth member is biased by a spring in a direction away from the ratchet wheel.

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patent: 4991874 (1991-02-01), Tsuge et al.
patent: 4993656 (1991-02-01), Tsuge et al.

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