Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1980-07-16
1982-08-03
Jillions, John M.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
2421074R, 297475, 280807, A62B 3500, B65H 7548
Patent
active
043424350
ABSTRACT:
In a seat belt retractor having two springs at least one of which acts for taking up webbing and wherein webbing take-up force can be reduced by controlling at least one of the two springs, a take-up force reducing mechanism comprises a rotatable member connected to one of the springs for controlling the output of the one spring so that when the rotatable member is in its movable condition, there is obtained an unreduced webbing take-up force and that when the rotatable member is unrestrained, the webbing take-up force is reduced, a restraining member capable of assuming a restraining position to restrain the rotatable member and a non-restraining position in which it cannot restrain the rotatable member, a friction cam member capable of following the rotational movement of the rotatable member due to friction therewith and also capable of assuming a first rotated position and a second rotated position, and electromagnetic means for moving the restraining member to said non-restraining position by an extraneous signal.
REFERENCES:
patent: 4026494 (1977-05-01), Tanaka
patent: 4113200 (1978-09-01), Tanaka
Jillions John M.
NSK-Warner K.K.
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