Seat belt retractor

Details Seat belt retractor Seat belt retractor

1988-12-14

1990-08-28

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

B60R 2244

Patent

active

049518968

ABSTRACT:
A seat belt retractor comprises a spool or shaft onto which a seat belt may be retracted. A first relatively weak spring is provided which tends to wind the belt onto the spool or reel. A second stronger spring is also provided which tends to wind the belt onto the reel but the second spring is only activated selectively, for example when the buckle is released. Thus the strong spring does not, in normal circumstances, pull the belt tightly across the chest of a person wearing it.

REFERENCES:
patent: 3984063 (1976-10-01), Knieriemen
patent: 4113200 (1978-09-01), Tanaka
patent: 4123013 (1978-10-01), Bottrill et al.
patent: 4215830 (1980-08-01), Cunningham
patent: 4564153 (1986-01-01), Morinaga et al.
patent: 4630841 (1986-12-01), Nishimura et al.
patent: 4711408 (1987-12-01), Mori
patent: 4809925 (1989-03-01), Takada

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