Patent ID: 9718437
Date: 2017-08-01
CPC Classifications: B60R

Claim:
1. A winder for a force limiting safety belt, comprising: a winder frame, a reel and a torsion bar, wherein the winder frame further comprises two opposite sidewalls and the two opposite sidewalls have two circular openings provided thereon, partial of the circular openings having a plurality of internal toothed segments, the internal toothed segments being provided on a corresponding position where the force limiting safety belt is driven outwardly; the reel comprises a spindle which uses internal toothed segments for binding the force limiting safety belt, the spindle having a slot, and two detachable end covers provided respectively at two ends of the spindle, the detachable end covers having a plurality of external teeth provided along the periphery of the detachable end covers, the external teeth of the detachable end covers being engaged with the plurality of internal teeth on the winder frame; the torsion bar is divided into two segments in axial direction, the two segments being connected to each other by a plurality of adjoining ends and being assembled in the slot of the spindle along the axis of the spindle, two ends of the bar segments having the external teeth provided thereon, the external teeth being engaged with internal teeth provided on the detachable end covers, a plurality of tooth profiles of the external teeth on an adjoining portion of the two bar segments aligning with each other, making a central external toothed segment, a central external toothed segment being engaged with the internal teeth provided on the internal wall of the slot of the spindle; in a free state, the reel is configured to rotate and float in the winder frame, the two end covers of the reel being provided in the circular openings; in a locked state, the external teeth of the two detachable end covers of the winder are engaged with the internal toothed segments of the frame.