Chain link rack pretensioner

Details Chain link rack pretensioner Chain link rack pretensioner

1996-05-17

1997-12-16

Jillions, John M.

Winding, tensioning, or guiding

Reeling device

With spring motor

474 91, 474147, 474242, B60R 2246

Patent

active

056975716

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 (110) proximate the gear; a flexible chain link rack (130), movable within the tube, having a front end (134a) initially maintained out of engagement with the first driven means and pushed into engagement with the first driven means to cause same to rotate; a piston (140) for pushing the rack (130) into engagement with the gear thereby causing the gear to rotate and catching mechanism for retaining the rack after it has exited the exit end of the tube.

REFERENCES:
patent: 4158402 (1979-06-01), Romans
patent: 4444010 (1984-04-01), Bendler
patent: 4508287 (1985-04-01), Nilsson
patent: 4685898 (1987-08-01), Wiens
patent: 4692130 (1987-09-01), Novak
patent: 5246406 (1993-09-01), Vahabzadeh
patent: 5334111 (1994-08-01), Cole et al.
patent: 5443222 (1995-08-01), Modinger et al.

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