Belt retractor with a belt pretensioner and a force limiting mea

Details Belt retractor with a belt pretensioner and a force limiting mea Belt retractor with a belt pretensioner and a force limiting mea

1996-10-08

1998-04-14

Nguyen, John Q.

Winding, tensioning, or guiding

Reeling device

With spring motor

2423791, 280805, 280807, B65H 7548, B60R 2228, B60R 2234

Patent

active

057382930

ABSTRACT:
A safety belt retractor comprises a frame, a belt reel rotatably mounted in the frame, and a rotary pretensioner drive adapted to be drivingly coupled to the belt drum. A force limiting torsion rod is connected to the belt drum for joint rotation. Blocking pawls are pivotally mounted on the torsion rod for cooperation with an internally toothed ring rigidly connected to the frame and surrounding the blocking pawls. The blocking pawls are spring biased to neutral positions out of engagement with the toothed ring. Retarding mechanism act on the blocking pawls to retard their movement out of a belt drum blocking position in engagement with said toothed ring to the neutral position.

REFERENCES:
patent: 5526996 (1996-06-01), Ebner et al.

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