Seat belt retractor

Details Seat belt retractor Seat belt retractor

2005-06-28

2005-06-28

Matecki, Kathy (Department: 3654)

Winding, tensioning, or guiding

Reeling device

With particular drive

C242S374000, C242S379100, C242S382200, C280S806000, C297S478000

Reexamination Certificate

active

06910653

ABSTRACT:
A seat belt retractor having a force limiter mechanism that can be stably operated when a pyrotechnic pretensioner is activated. As a pyrotechnic pretensioner is activated, a ring gear rotates in the counter-clockwise direction. Accordingly, an external tooth holding an end portion of a stopper is moved, whereby the end portion of the stopper becomes free. Therefore, the stopper expands because of its biasing force. Then, a release spring is released from the restriction of the stopper and thus pivots in the clockwise direction because of its biasing force. The release spring collides with a pin of the clutch pawl to press down the pin. Therefore, the clutch pawl is rotated about a clutch pawl pin in the clockwise direction, thereby canceling the mechanical connection between the motor and the spool.

REFERENCES:
patent: 3219297 (1965-11-01), Kenyon
patent: 6499554 (2002-12-01), Yano et al.
patent: 2002/0096591 (2002-07-01), Tanji
patent: 43 42 666 (1995-06-01), None
patent: 200 13 541 (2000-10-01), None
patent: 2002-326558 (2002-11-01), None

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