Seatbelt retractor

Details Seatbelt retractor Seatbelt retractor

1979-02-05

1980-07-15

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

2421074R, A62B 3502, B65H 7548

Patent

active

042124352

ABSTRACT:
A first and a second springs are connected in series to a take-up shaft of a seatbelt so as to generate wind-up force; when the seatbelt is put on by an occupant, a pawl is engaged with a latch gear provided at a connecting portion between said springs, whereby the biasing of only one of said spring is imparted to the take-up shaft, thereby decreasing the wind-up force of the take-up shaft; after the seatbelt is released from the occupant, the pawl is disengaged from the latch gear by a camplate means connected to the take-up shaft through a one-way clutch, by which the wind-up force of the take-up shaft is imparted when the relative rotation between the camplate and the take-up shaft is more than one thirds of a turn, whereby the wind-up force of the take-up shaft is increased and the condition where the wind-up force is maintained at a low level even when the occupant moves his body with the seatbelt being worn by the occupant.

REFERENCES:
patent: 3984063 (1976-10-01), Knierieman
patent: 4081153 (1978-03-01), Tanaka et al.
patent: 4113201 (1978-09-01), Ziv
patent: 4126282 (1978-11-01), Morita et al.

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