Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1975-11-26
1978-03-28
Hornsby, Harvey C.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
2421074R, A62B 3500, B65H 7548
Patent
active
040811522
ABSTRACT:
Tension relieving means for safety belt retractors having biasing means for normally biasing an associated safety belt storage means toward a belt retracted condition when the associated safety belt is protracted are provided for restricting the retractive movement of the storage means when the belt is in use to provide a limited low tension travel for the belt which is automatically established on a slight retractive movement of the protracted belt and is maintained within the limits of a predetermined extent of low tension travel for the belt. Pawl means are pivotally mounted on a lower end of a tension arm pivotally mounted to the retractor frame having a free end roller engaging laterally against protracted portions of the webbing with a belt storage reel associated ratchet wheel adapted to be selectively engageable with the pawl whereby the retractive force of the biasing means for the belt storage means is reacted through the ratchet wheel, pawl means and tension arm with a mechanical lever disadvantage such that a resultant low tension retractive effect is applied to the belt automatically when the belt is placed into use.
REFERENCES:
patent: 3598335 (1971-08-01), Seeger
patent: 3851836 (1974-12-01), Sprecher
patent: 3858826 (1975-01-01), Sprecher
patent: 3957222 (1976-05-01), Bladh
American Safety Equipment Corporation
Hornsby Harvey C.
Jillions John M.
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