Seat belt retractor with curved tooth auxilliary gear

Details Seat belt retractor with curved tooth auxilliary gear Seat belt retractor with curved tooth auxilliary gear

1986-10-16

1988-02-09

Levy, Stuart S.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

74577S, B60K 2240, B65H 7548

Patent

active

047237295

ABSTRACT:
Retractor for front seat belt having inertia responsive pivoted latch bar for engaging main ratchet sprocket gears to arrest belt extraction, and an auxilliary sprocket gear with radially elongated teeth engaged by pivoted lever finger actuated by inertia pendulum for raising lever and latch bar into main gear arresting engagement characterized by auxilliary sprocket gear teeth each having a concave surface for finger point engagement adapted to increase the lever actuating moment arm at the extremity of tooth contact relative to that of prior straight tooth surfaces.

REFERENCES:
patent: 4238087 (1980-12-01), Makishima
patent: 4249708 (1981-02-01), Asano
patent: 4403751 (1983-09-01), Asano
patent: 4492349 (1985-01-01), Stamboulian
patent: 4518132 (1985-05-01), Schmidt
patent: 4605180 (1986-08-01), Fisher et al.
patent: 4632331 (1986-12-01), Bracnik et al.

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