Seat belt retractor

Details Seat belt retractor Seat belt retractor

1987-09-21

1989-03-07

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

B60R 2244

Patent

active

048099252

ABSTRACT:
A vehicle seat belt retractor comprises a tension-reduction mechanism in which a second spiral winding spring is connected in parallel with the main spiral winding spring between the retractor frame and the belt reel. A gear clutch is interposed between the second winding spring and the reel. One element of the gear clutch is selectively locked to the reel frame in response to connection of the belt to the buckle, thereby preventing the second spring from acting on the reel. When the belt is disconnected from the buckle, both springs work in parallel to wind the belt onto the reel.

REFERENCES:
patent: 4113200 (1978-09-01), Tanaka
patent: 4123013 (1978-10-01), Bottrill et al.
patent: 4564153 (1986-01-01), Morinaga et al.
patent: 4585185 (1986-04-01), Ueda

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