Retractor assembly

Details Retractor assembly Retractor assembly

1985-08-19

1986-12-30

Levy, Stuart S.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

B60R 2240, B65H 7548

Patent

active

046323317

ABSTRACT:
An improved seat belt retractor has a rotatable reel around which a safety belt may be wound. A locking pawl is movable between a disengaged condition and an engaged condition engaging ratchet wheel teeth on the reel to hold the reel against rotation. To move the locking pawl into engagement with the ratchet wheel teeth, a pilot pawl is moved from a disengaged condition toward an engaged condition. As the pilot pawl moves toward the engaged condition, it engages a pilot pawl gear and moves the locking pawl toward its engaged condition. A releasable connector assembly or clutch is connected with the ratchet wheel and pilot pawl gear to allow relative rotation to occur between them after movement of the pilot pawl to the engaged condition. The relative rotation results in a change in the angular relationship between the teeth on the ratchet wheel and the teeth on the pilot pawl gear. In order to have a consistently repeatable locking action, the connector assembly re-establishes the initial angular relationship between the teeth on the ratchet wheel and the teeth on the pilot pawl gear.

REFERENCES:
patent: 3834646 (1974-09-01), Heath
patent: 4058271 (1977-11-01), Ubukata
patent: 4101094 (1978-07-01), Wallin
patent: 4475697 (1984-10-01), Wyder
patent: 4483495 (1984-11-01), Monl

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