Webbing stretching device

Details Webbing stretching device Webbing stretching device

1982-09-30

1984-09-18

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

280806, A62B 3502, B65H 7548

Patent

active

044719183

ABSTRACT:
A small spiral spring and a large spiral spring are provided coaxially with a webbing takeup shaft. During normal running condition of a vehicle, a trigger means prevents rotation of a working ring subjected to a biasing force of the large spiral spring, the working ring is separated from the takeup shaft by a clutch means, and a weak biasing force of the small spiral spring acts on the takeup shaft.
In an emergency situation of the vehicle, the trigger means permits the working ring to rotate and the clutch means connects the working ring to the takeup shaft, whereby the biasing force of the large spiral spring is imparted to the takeup shaft, so that a tensile force can be rendered to the webbing.

REFERENCES:
patent: 4014479 (1977-03-01), Nilsson et al.
patent: 4056242 (1977-11-01), Herrmann
patent: 4187925 (1980-02-01), Lindblad
patent: 4191344 (1980-03-01), Tillac

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