| 摘要 |
A sensor holder and a sensor cover are provided at an outer side of a first leg plate of a webbing retractor. Attachment holes formed in the first leg plate and engaging pawls which engage with sensor openings are formed at appropriate portions of a sensor holder. Removal preventing portions are formed at corresponding portions of the sensor cover so as to prevent the engaging pawl from coming out of the attachment hole. Thus, the sensor holder and the sensor cover can be firmly secured to the first leg plate of the frame without using plugs.
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