Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1980-05-22
1981-11-17
Jillions, John M.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
2421074A, 280806, A62B 3502, B65H 7548
Patent
active
043007317
ABSTRACT:
A belt roll-up and clamp mechanism for limiting the spool-out of belt from the belt reel of a vehicle sensitive inertia locking retractor. The belt roll-up and clamp mechanism includes a spindle having pinion gears attached to opposite ends of a pair of bars which are spaced apart to define a slot through which the belt passes. The pinion gears mesh with toothed racks on the retractor housing which effect rotation of the spindle simultaneously with linear movement of the spindle along the toothed racks. A spring normally biases the spindle to the end of the rack furthest from the reel and to a rotary position which permits the belt to pass through the slot and slide around one of the bars during normal winding and unwinding of the belt from the reel. The imposition of occupant restraint load on the belt subsequent to reel lockup by a vehicle inertia sensor causes the spindle to move linearly and rotationally along the racks so that the belt is rolled up around the spindle bars to limit the extension of the belt from the reel. One of the spindle bars is preferably movable relative the other bar so that roll-up of the belt squeezes the movable bar toward the fixed bar to clamp the belt therebetween.
REFERENCES:
patent: 3240510 (1966-03-01), Spouge
patent: 3261568 (1966-07-01), McFarlane
patent: 3323831 (1967-06-01), Buechler
patent: 3389874 (1968-06-01), Van Noord
patent: 3533659 (1970-10-01), Major
patent: 3534190 (1970-10-01), Lindblad
patent: 3551961 (1971-01-01), Nygren
patent: 3847434 (1974-11-01), Weman
patent: 4032174 (1977-06-01), Andres et al.
patent: 4120466 (1978-10-01), Adomeit
patent: 4206886 (1980-06-01), Yoshitsugu et al.
General Motors Corporation
Jillions John M.
Leahy Charles E.
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