Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1987-10-26
1989-05-16
Jillions, John M.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
2421074B, B60R 2238, B60R 2240
Patent
active
048303097
ABSTRACT:
A retractor permitting a forcible lock release is provided. It is constructed of a base, a retractor shaft, a latch plate and ratchet wheel fixed on the shaft, a lock plate loose-fit on the shaft, a sensor arm supported on the lock plate, a pawl connected to the lock plate displaceably between a lock position where the pawl prevents rotation of the latch plate in a webbing releasing direction and a non-lock position where the pawl permits free rotation of the latch plate, and a lock releasing device. The sensor arm is displaceable between an engagement position where the sensor arm engages the ratchet wheel and a non-engagement position where the sensor arm is maintained out of engagement from the ratchet wheel. The pawl is brought to the lock position when the sensor arm is at the engagement position and the lock plate is turned in the webbing releasing direction. When operated, the lock releasing device develops a pahse difference in the webbing winding rotational direction between the ratchet wheel and sensor arm and then causes the lock plate to turn forcibly in the webbing winding direction.
REFERENCES:
patent: 4218033 (1980-08-01), Finn et al.
patent: 4244600 (1981-01-01), Takada
patent: 4265415 (1981-05-01), Harrell et al.
patent: 4273301 (1981-06-01), Frankila
patent: 4277037 (1981-07-01), Loose et al.
patent: 4304373 (1981-12-01), Nishimura
patent: 4327883 (1982-05-01), Yamamoto
patent: 4344588 (1982-08-01), Hollowell et al.
Jillions John M.
Nippon Seiko Kabushiki Kaisha
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