Seat belt retractor

Details Seat belt retractor Seat belt retractor

1991-03-25

1992-05-12

Stodola, Daniel P.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

B65H 7548

Patent

active

051120054

ABSTRACT:
A seat belt retractor for reducing the retracting force of a webbing on an occupant, including a casing and a spool rotatably mounted in the casing. A length of the webbing being wound on the spool. A spiral spring connected to the spool biases and rotates the spool in the direction of the winding of the webbing on the spool. A shaft rotatably mounted in the casing engages the spool to provide unitary rotation therebetween. An elastic member connected to the shaft and an inner cylinder engageable with the elastic member reduce the biasing force of the spiral spring when the spool is rotated to retract the webbing.

REFERENCES:
patent: 4088281 (1978-05-01), Close
patent: 4125231 (1978-11-01), Henderson
patent: 4216922 (1980-08-01), Wenan
patent: 4301977 (1981-11-01), Yang
patent: 4630841 (1986-12-01), Nishimura et al.
patent: 4637630 (1987-01-01), Nishimura et al.
patent: 4640472 (1987-02-01), Epple
patent: 4669680 (1987-06-01), Nishimura et al.
patent: 4844375 (1989-07-01), Ballest
patent: 4943011 (1990-07-01), Kitamura et al.

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