Retractor for seat belt

Details Retractor for seat belt Retractor for seat belt

1998-06-12

2000-09-05

Jillions, John M.

Winding, tensioning, or guiding

Reeling device

With spring motor

B60R 2228

Patent

active

061130222

ABSTRACT:
It is an object to provide a retractor for a seat belt having a locking means and a shaft which can be twisted and exhibiting satisfactory safety. A retractor 1 for a seat belt according to the present invention having a locking means 100, which is capable of inhibiting rotation of a bobbin 3 around which a webbing 50 is wound in a direction in which the webbing 50 is drawn out in an emergency of a vehicle, a torsion bar 200A is disposed between the bobbin 3 and the locking means 100 and arranged to be twisted to respond to the instance wherein a predetermined load is applied to the locking means 100 so as to rotate the bobbin 3 in the direction in which the webbing 50 is drawn out. The retractor 1 for a seat belt has a rotation restraining mechanism 300 for restraining rotation of the bobbin 3 when the bobbin 3 has been rotated by a predetermined angle in the direction in which the webbing 50 is drawn out to correspond to torsion of the torsion bar 200A.

REFERENCES:
patent: 3632060 (1972-01-01), Balder
patent: 3834646 (1974-09-01), Heath
patent: 3857528 (1974-12-01), Fiala
patent: 4322046 (1982-03-01), Tanaka et al.
patent: 5628469 (1997-05-01), Fohl
patent: 5636806 (1997-06-01), Sayles
patent: 5660347 (1997-08-01), Baker

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