Webbing wind-up force limiting apparatus

Details Webbing wind-up force limiting apparatus Webbing wind-up force limiting apparatus

1987-01-13

1987-12-08

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

2421074R, B60R 2244

Patent

active

047114088

ABSTRACT:
A webbing wind-up force limiting apparatus for use in a webbing retractor wherein a pair of webbing take-up resilient members are connected together through a gear wheel and the webbing wind-up force is reduced by locking the rotation of the gear wheel. The apparatus includes a rotary member whose diameter is enlarged by an inertia member in response to the rotation of the gear wheel when the occupant unfastens the webbing, and a ring which comes into contact with the rotary member when its diameter is enlarged. Accordingly, when the occupant unfastens the webbing, the gear wheel is prevented from rotating rapidly.

REFERENCES:
patent: 4162772 (1979-07-01), Mori

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