Chain link rack pretensioner

Details Chain link rack pretensioner Chain link rack pretensioner

1997-02-21

1998-12-29

Jillions, John M.

Winding, tensioning, or guiding

Reeling device

With spring motor

B60R 2246

Patent

active

058531351

ABSTRACT:
An apparatus (20, 100) comprising: a driven gear (102) operatively linked to a spool of a retractor (20) to rotate the spool (24) in a direction of retraction to cause a seat belt (31) wound thereabout to retract; an arcuate tube (108) having a flat exit end (302) proximate the gear; a flexible chain (130), moveable within the tube, having a front end (134a) initially maintained out of engagement with the first gear and pushed into engagement with the first gear to cause same to rotate; a piston (600) for pushing the chain (130) into engagement with the gear thereby causing the gear to rotate and catching mechanism for retaining the chain after it has exited the exit end of the tube.

REFERENCES:
patent: 4444010 (1984-04-01), Bendler
patent: 4508287 (1985-04-01), Nilsson
patent: 5443222 (1995-08-01), Modinger et al.
patent: 5697571 (1997-12-01), Dybro et al.

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