Winder, a torsion bar, a reel, end covers and a safety belt assembly used for a force limiting safety belt

摘要

The present invention provides a winder used for a force limiting safety belt, comprising: a winder frame, a reel and a torsion bar. wherein, the winder frame comprises two opposite sidewalls, the corresponding positions of the two sidewalls having circular openings provided, the circular openings having internal toothed segments; the reel comprising a spindle through hole provided along the central axis of the spindle, two detachable end covers provided respectively on the two ends of the spindle, the end covers having external teeth provided along the periphery of the end covers; the torsion bar is divided into two segments in axial direction which are connected to each other by adjoining ends; in a free state, the reel is able to rotate and float provided within the winder frame, two end covers being provided in the circular through opening on the two sidewalls of the winder frame.

主权项

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 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 is used for binding the force limiting safety belt, the spindle having a through hole and two detachable end covers provided respectively on 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 being engaged with a 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 a 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 the corresponding internal teeth provided on the detachable end covers, a plurality of tooth profiles of the external teeth on a 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 in the slot of the spindle;
in a free state, the reel is able to rotate and float in the winder frame, the two end covers of the reel being provided in the circular openings on the two sidewalls of the winder frame; in a locked state, the external teeth of the two end covers of the winder are engaged with the internal teeth of the frame.