Mechanism for blocking a roll-up device for safety belts

Details Mechanism for blocking a roll-up device for safety belts Mechanism for blocking a roll-up device for safety belts

1982-11-24

1984-11-20

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

A62B 3502, B65H 7548

Patent

active

044834950

ABSTRACT:
Mechanism for blocking a belt shaft of a roll-up device for a safety belt in a vehicle characterized by the features that the control pawl is pivoted in the stationary roll-up housing of the mechanism in the tangential direction range to the pitch circle of the teeth, can be swung with the detent tip of the control pawl by positioning means of the danger sensor into the range of the teeth of the control disc, can be swung further upon rotation of the control disc toward the tooth base by a pulling force on the safety belt against the detent tip with the latter, taking along the blocking pawl into the area of the ratchet wheel teeth and can be moved, at least in the range of its tip, against an elastic force by a pulling force on the safety belt transmitted via the cam of the control disc where if a tooth of the control disc is struck by the tip of the control pawl, a distance between the next tooth of the ratchet wheel is provided by mechanical design to ensure engagement of the blocking pawl with the teeth of the ratchet wheel.

REFERENCES:
patent: 3578260 (1971-05-01), Kell
patent: 3834646 (1974-09-01), Heath
patent: 3930622 (1976-01-01), Tanaka et al.
patent: 4029267 (1977-06-01), Slipper
patent: 4053117 (1977-10-01), Takada
patent: 4187995 (1980-02-01), Rex
patent: 4190213 (1980-02-01), Ueda

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