| 摘要 |
A seat belt retractor 100 with an energy absorbing member 2 of a torsion bar which is coupled at one end with a bobbin 3 and at the other end with a locking base 5 is disclosed. The energy absorbing member 2 includes an energy absorbing portion 2c that is torsionally deformable, and fixing portions 2a and 2b provided at both ends of the energy absorbing portion 2c. A hardness of each of the coupling portions 2a and 2b is larger than that of the energy absorbing portion 2c.
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