Seat belt retractor

Details Seat belt retractor Seat belt retractor

1993-03-19

1996-01-16

Darling, John P.

Undertaking

2423811, B60R 2234, B65H 7548

Patent

active

054841186

ABSTRACT:
A seat belt retractor in which when a lock gear (13) rotates in a direction (B) relative to a reel shaft (4), a projecting shaft (19d) moves by the action of a first cam hole (13i), causing a main pawl (19) to pivot in the direction B. Thus, teeth (20a) which are to be engaged with first and second pawl portions (19b) and (19c) are decided. At this time, a backup pawl (22) does not pivot because a projecting shaft (21c) merely moves along a hole (13m). When the lock gear (13) further moves in the direction (B) relative to the reel shaft (4), the first and second pawl portions (19b) and (19c) begin to engage with the teeth (20a), and the projecting shaft (21c) moves along a radial hole (13k). Thus, the backup pawl (22) pivots in the direction (B), and a tooth (2f) which is to be engaged with the backup pawl (22) is decided. When the lock gear (13) further rotates in the direction (B) relative to the reel shaft (4), the first and second pawl portions (19b) and (19c) completely engage with the teeth (20a) at the same time as the backup pawl (22) completely engages with the tooth (2f).

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patent: 4802634 (1989-02-01), Singer
patent: 4907820 (1990-03-01), Fohl
patent: 5314137 (1994-05-01), Fujimura et al.
patent: 5364048 (1994-11-01), Fujimura et al.

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