Seat belt retractor

Details Seat belt retractor Seat belt retractor

2011-01-25

2011-01-25

Dickson, Paul N (Department: 3616)

Land vehicles

Wheeled

Attachment

C242S379100, C297S471000

Reexamination Certificate

active

07874589

ABSTRACT:
To further reduce variation in the maximum limited load by a seat belt load limiting mechanism composed of a torsion bar and a shearing member. When a spool rotates in the belt withdrawing direction relative to the locking base, energy absorbing (EA) mechanism action only by shear deformation of shear pins is first conducted so that the entire EA load is only the EA load by the shear pins. After the EA load by the shear pins becomes the maximum EA load, the seat belt is withdrawn by a predetermined amount and the EA action by torsional deformation of a torsion bar is conducted in addition to the EA action by the shear pins. Since the EA action only by the shear pins is first conducted, it is possible to reduce variation in the maximum limited load during the shear deformation of the shear pins.

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European Search Report issued by European Patent Office dated Aug. 13, 2009 for European Patent Application No. 08004482.9.

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