Retractor with load limiting spool with decoupled pretensioner

Details Retractor with load limiting spool with decoupled pretensioner Retractor with load limiting spool with decoupled pretensioner

1995-08-11

1997-09-30

Jillions, John M.

Winding, tensioning, or guiding

Reeling device

With spring motor

2423791, B60R 2228, B60R 2246

Patent

active

056718942

ABSTRACT:
A safety system comprising: energy absorbing seat belt retractor (20) and a pretensioner for initiating rewinding a retractor spool (24) and the seat belt (31) subsequent to an accident; the retractor (20) includes bushings for rotationally mounting the spool (24) so that it rotates relative to a frame (22) and an energy absorbing device (70, 90, 100, 102) for permitting the controlled rotation of the spool and the controlled protraction of the belt as the belt is loaded by an occupant, such controlled protraction of the belt being independent of the amount that the spool was caused to rewind in response to the operation of the pretensioner.

REFERENCES:
patent: 3942819 (1976-03-01), Schwanz et al.
patent: 3952967 (1976-04-01), Barile et al.
patent: 5489072 (1996-02-01), Gordon et al.
patent: 5511739 (1996-04-01), Dybro et al.
patent: 5522564 (1996-06-01), Schmidt et al.

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