Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1978-02-21
1980-01-01
Jillions, John M.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
297478, A62B 3500, B65H 7548
Patent
active
041812735
ABSTRACT:
An automatic, rapid lock, belt roll-up clamp for vehicle safety belts is provided with a belt clamp disposed behind a winding drum. The belt is adapted to be guided with minimal friction between first and second guide points located next to a clamp lever having a joint, and between two clamping surfaces, one of which is attached to a housing, the other of which is located on the clamp lever and both of which are substantially parallel to one another when in contact. The second guide point is pivotally mounted on the housing and located separately from the clamp lever and in front of the clamping surfaces with respect to the direction of belt pull. Clamping occurs by essentially pure normal force produced by pulling action at the first guide point, located on the clamp lever. At substantially completely filled condition of the winding drum, the moving way of the belt between guide points is the same as the moving way between the second guide point and the winding drum.
REFERENCES:
patent: 3389874 (1968-06-01), Van Noord
patent: 3692253 (1972-09-01), Curran
patent: 3817473 (1974-06-01), Board et al.
patent: 3847434 (1974-11-01), Weman
patent: 4120466 (1978-10-01), Adomeit
Criss Roger H.
Henry Patrick L.
Jillions John M.
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