Spiral tube compact pretensioner and retractor

Details Spiral tube compact pretensioner and retractor Spiral tube compact pretensioner and retractor

1997-03-20

1998-07-21

Darling, John P.

Winding, tensioning, or guiding

Reeling device

With spring motor

B60R 2246

Patent

active

057824231

ABSTRACT:
An apparatus (20, 500) comprising: first driven gear (502) 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; a helically shaped first driving member (530) having a front end (536) initially maintained out of engagement with the driven gear and pushed into engagement with the first driving member to cause same to rotate; second driving member (520) operatively linked to a rear end of the first driving member for pushing the first driving member into engagement with the driven gear thereby causing the driven gear to rotate.

REFERENCES:
patent: 4014479 (1977-03-01), Nilsson et al.
patent: 4444010 (1984-04-01), Bendler
patent: 5505399 (1996-04-01), Schmid et al.

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