Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1976-10-13
1978-05-09
Hornsby, Harvey C.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
2421074R, A62B 3500, B65H 7548
Patent
active
040882810
ABSTRACT:
An emergency locking safety belt retractor having a safety belt wound upon a reel has a dual tension single spring retraction means including reduction gear means interposed between the reel and retractor spring which is selectively operated to reduce the force of the spring means upon the reel when the safety belt is protracted to a position of use and then slightly retracted for a limited amount of retraction movement during which the safety belt is in a "low tension zone" condition until the limited retraction movement allowed is exceeded and the full force of the spring is reapplied through the gear means to the reel.
REFERENCES:
patent: 1944264 (1934-01-01), Oravec et al.
patent: 1967902 (1934-07-01), Reichel
patent: 2514144 (1950-07-01), Shedlock
patent: 3976257 (1976-08-01), Fohl
patent: 3984063 (1976-10-01), Knieriemen
patent: 3997126 (1976-12-01), Karlsson
American Safety Equipment Corporation
Hornsby Harvey C.
Jillions John M.
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