Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1988-04-19
1991-11-19
Hail, III, Joseph J.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
A62B 3500, B65H 7548
Patent
active
050659545
ABSTRACT:
A spindle is supported for rotation in opposite directions about its longitudinal central axis. An end portion of seat belt webbing is secured to the spindle. The belt webbing normally moves parallel to a predetermined plane as the belt webbing is withdrawn from the spindle. The belt webbing moves in a direction transverse to the predetermined plane during the last quarter of a revolution of the spindle as the belt webbing is fully withdrawn from the spindle. The spindle is biased to rotate about its longitudinal central axis in a belt retraction direction to wind the belt webbing onto the spindle. A comfort mechanism has a member which is movable between a first position in which rotation of the spindle in the belt retraction direction is blocked and a second position in which rotation of the spindle in the belt retraction direction is permitted. A release mechanism moves the member of the comfort mechanism to its second position in response to the end portion of the belt webbing moving in the transverse direction relative to the predetermined plane during the last quarter revolution of the spindle as the belt webbing is fully withdrawn from the spindle.
REFERENCES:
patent: 3858826 (1975-01-01), Sprecher
patent: 4002311 (1977-01-01), Fisher et al.
patent: 4124175 (1978-11-01), Cislak
patent: 4149683 (1979-04-01), Fisher et al.
patent: 4165054 (1979-08-01), Collins
patent: 4307853 (1981-12-01), Higbee et al.
patent: 4535973 (1985-08-01), Dorr et al.
Hail III Joseph J.
TRW Vehicle Safety Systems Inc.
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