Re-tightener with pyrotechnic propellant charge for safety belt

Details Re-tightener with pyrotechnic propellant charge for safety belt Re-tightener with pyrotechnic propellant charge for safety belt

1980-03-05

1983-04-26

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

2421074R, 60632, A62B 3500, B65H 7548

Patent

active

043810845

ABSTRACT:
A retightener for safety-belt automatic wind-up devices having an energy converter having a charge, which when activated in the case of danger, the explosive pressure of the fired charge acts on a retightening element which tightens the safety-belt around the body of the motor vehicle passenger. The retightener of the invention has an intermediate liquid medium transmitting the explosive pressure of the charge arranged between the charge and the retightening element.

REFERENCES:
patent: 3077324 (1963-02-01), Strickland
patent: 3178136 (1965-04-01), Bayer
patent: 3433014 (1969-03-01), Duport et al.
patent: 3845836 (1974-11-01), Bendler et al.
patent: 3976257 (1976-08-01), Fohl
patent: 4142692 (1979-03-01), Andres
patent: 4144714 (1979-03-01), Bendler

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