Mechanism in roll-up device for safety belts in motor vehicles

Details Mechanism in roll-up device for safety belts in motor vehicles Mechanism in roll-up device for safety belts in motor vehicles

1983-02-23

1985-04-09

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

A62B 3500, B65H 7548

Patent

active

045097089

ABSTRACT:
Mechanism in roll-up devices for safety belts in motor vehicles, where the safety belt which, addressed by one or more danger sensors, can be blocked via a belt shaft, is stressed in tension in the winding-up direction of the belt shaft by the force of a spring, and where, through control gates of plate cams, a locking device for the belt shaft is activated from the rest position against the elastic rolling-up spring force within a small range of rotation of the belt shaft in the pulling direction of the belt shaft. The belt shaft and two plate cams for influencing the locking device are in planet-gear-like functional connection with each other, where the antifriction bearing elements are arranged in a planet-gear-like manner and the belt shaft as well as the two plate cams are designed and arranged in a sun-gear-like and planet-gear-cage-like manner.

REFERENCES:
patent: 3834646 (1974-09-01), Heath
patent: 4108395 (1978-08-01), Heath
patent: 4172568 (1979-10-01), Yamanashi et al.

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