Tension controlled seat belt retractor

Details Tension controlled seat belt retractor Tension controlled seat belt retractor

1996-05-09

1998-10-06

Jillions, John M.

Winding, tensioning, or guiding

Reeling device

With spring motor

B60R 2244

Patent

active

058165223

ABSTRACT:
A seat belt retractor (20): comprising a spool (25), a frame (52) for rotationally supporting the spool, a seat belt (16) receivable on the spool, a rewind spring (100) for biasing the spool in a belt winding direction comprising a spring coil (100) having an inner spring end (103) connected to and rotated by a shaft (56) movable with the spool and an outer spring end (104) and a rotatable spring cup (70,72, 80, 81) connected to the outer spring end in continuous connection with the retractor shaft (56) for unwinding a predetermined number of coils from the spring coil in relation to the rotation of the shaft and reducing the rewind force or tensions applied to the shoulder of an occupant.

REFERENCES:
patent: 4402472 (1983-09-01), Burtscher
patent: 4487381 (1984-12-01), Kubota
patent: 4529143 (1985-07-01), Kanada et al.
patent: 4546933 (1985-10-01), Kanada et al.
patent: 4588144 (1986-05-01), Nishimura
patent: 4630841 (1986-12-01), Nishimura et al.
patent: 4640472 (1987-02-01), Epple
patent: 4726537 (1988-02-01), Escaravage

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