| 摘要 |
A seat belt retractor includes a seat belt; a spool, a locking mechanism, a belt withdrawal sensor, a lock actuating device for actuating the locking mechanism, and a lock gear disposed in the lock actuating device. A movement preventive member is provided at the lock gear for preventing movement of the belt withdrawal sensor, and a movement preventive member control device is also provided at the lock gear for controlling movement of the movement preventive member. The movement preventive member control device includes a movement control member rotating according to a rotation of the spool to control the movement of the movement preventive member, and an intermittent relative rotation device for making the movement control member to intermittently rotate relative to the lock gear.
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