Reel mechanism for elimination of belt looseness of a safety bel

Details Reel mechanism for elimination of belt looseness of a safety bel Reel mechanism for elimination of belt looseness of a safety bel

1977-06-03

1979-03-06

Hornsby, Harvey C.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

2421074R, 244122B, 280744, A62B 3500, B65H 7548

Patent

active

041426924

ABSTRACT:
A reel mechanism for the elimination of the belt looseness of a safety belt system when exceeding a predetermined vehicle deceleration, whereby a preferably electrically ignitable propellant charge is provided for the initiation of the retraction movement, which is arranged in the axial direction of the wind-up roller; the propellant charge is thereby arranged concentrically in a hollow shaft of a belt roller that blocks automatically in case of danger, and accommodates a continuously effective retracting device as well as the wind-up roller; a liquid medium is disposed in front of the propellant charge which, after the ignition of the propellant charge, drives a rotor coupled at that instant with the wind-up roller by the then forming gases in the sense of an elimination of the belt looseness.

REFERENCES:
patent: 3871470 (1975-03-01), Schwanz et al.
patent: 3976257 (1976-08-01), Fohl
patent: 4014479 (1977-03-01), Nilsson et al.
patent: 4056242 (1977-11-01), Herrmann

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