Winding – tensioning – or guiding – Reeling device – With spring motor
Patent
1993-01-26
1994-07-12
Jillions, John M.
Winding, tensioning, or guiding
Reeling device
With spring motor
B60R 2246
Patent
active
053281187
ABSTRACT:
A seat belt retractor is provided with a pretensioner which comprises a wound-wire tightening mechanism and a drive means. The wound-wire tightening mechanism is composed of a pulley fixedly mounted on an end portion of a take-up spindle and a wire wound around the pulley with a small space left therebetween. The drive means comprises a piston connected to a free end of the wire, a cylinder with the piston movably received therein, a compression coil spring disposed in the cylinder to bias the piston in the pulling direction of the wire, and a trigger unit releasably holding the piston relative to the cylinder such that the piston can be maintained at a biased position against the resilient force of the compression coil spring but the holding of the piston at the biased position can be released responsive to an acceleration of at least a predetermined value.
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Kawai Osamu
Mogi Shinobu
Ono Katsuyasu
Tada Tatsuo
Taguchi Toshifumi
Jillions John M.
NSK Ltd.
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