Patent ID: 6712305
Filing Date: 2004-03-30
Classification: B60R

Abstract:
A seat belt retractor comprising:a spool, mounted for rotation in the retractor for refraction or pay-out of seat belt webbing depending upon the rotation direction of the spool; a locking ring attached to one end of the spool, whereby a pin being fixed to the locking ring; a means for locking the locking ring against rotation when a crash is sensed; and a means for force limiting allowing further pay-out of the seat belt webbing after the locking ring has locked, under the influence of a vehicle occupant's forward momentum, wherein the means for force limiting comprises a length of wire, the wire is wound round the pin a multiple number of turns; and a spindle being fixed to the spool, the wire is attached to one end of the spindle whereby under the influence of crash forces above a predetermined value, the wire is pulled completely around the spindle at least two turns.