Tension controlled seat belt retractor

Details Tension controlled seat belt retractor Tension controlled seat belt retractor

1996-05-31

1998-07-07

Jillions, John M.

Winding, tensioning, or guiding

Reeling device

With spring motor

B60R 2244

Patent

active

057756180

ABSTRACT:
A seat belt retractor (20) comprising: a spool (25) and a frame (52) for rotationally supporting the spool; a seat belt (16) receivable on the spool, a rewind spring (80) for biasing the spool in a belt winding direction comprising a spring (80) having an inner spring end (82) connected to and rotated by a shaft (56) movable with the spool and a fixedly secured outer spring end (84); an auxiliary spring (120) and gear set (100, 102) (70, 72, 80, 81) operatively connected to the inner spring end in continuous driving connection with the shaft for generating a torque to reduce the level of force imparted to the shoulder of a seat belt user and to increase the rewind force when the rewind spring is rewinding the seat belt.

REFERENCES:
patent: 4113062 (1978-09-01), Beland
patent: 4228968 (1980-10-01), Jahn

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