Tension locking mechanism of a retractor

Details Tension locking mechanism of a retractor Tension locking mechanism of a retractor

1984-02-09

1985-03-26

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

A62B 3500, B65H 7548

Patent

active

045068453

ABSTRACT:
In a retractor having a seat occupant restraining belt rolling-up reel rotatably supported on a base and a member for biasing the reel in a belt rolling-up direction, a tension locking mechanism has a mechanism including a pawl, a portion for engaging with the pawl to block the rotation of the reel in the belt rolling-up direction, the portion being integral with the reel, and two cam members comprising portion for bringing the integral portion and the pawl into an engageable state after a series of predetermined belt operations from a state in which the whole amount of the belt has been rolled up, portions for once bringing the pawl and the integral portion into an unengageable state from the engageable state within a belt draw-out range less than a predetermined amount, but returning the pawl and the integral portion into the engageable state when a draw-out force is again eliminated, and a portion for realizing the unengageable state by the draw-out of the belt more than the predetermined amount and bringing about a position for rolling up the whole amount of the belt.

REFERENCES:
patent: 3834646 (1974-09-01), Heath
patent: 3869098 (1975-03-01), Sprecher
patent: 4023746 (1977-05-01), Magyar
patent: 4065072 (1977-12-01), Magyar
patent: 4108395 (1978-08-01), Heath
patent: 4270709 (1981-06-01), Inukai

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