Dual spool retractor with comfort limiting mechanism

Details Dual spool retractor with comfort limiting mechanism Dual spool retractor with comfort limiting mechanism

1988-12-02

1990-01-30

Jillions, John M.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

280807, B60R 2234

Patent

active

048968447

ABSTRACT:
A dual spool seat belt retractor includes a comfort mechanism actuated by limited protraction of one belt relative to the other to provide a predetermined amount of slack in the one belt. A comfort limiting mechanism is drivingly coupled by a gear train to both the first and second retractor spools to disengage the comfort mechanism in response to relative rotation between the first and second spools caused by protraction of the one belt to an extent exceeding the limited protraction employed to actuate the comfort mechanism so as to allow retraction of the belt by the rewind spring. Slack in the belt in excess of the predetermined amount is thereby prevented. The comfort mechanism is also disengaged by the comfort limiting mechanism when the belts are unbuckled to allow full retraction of both belts.

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patent: 4385737 (1983-05-01), Gullette et al.
patent: 4498642 (1985-02-01), Doty

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