| 摘要 |
PROBLEM TO BE SOLVED: To surely suppress occurrence of end lock in a seat belt retractor when taking up webbing.SOLUTION: A lock mechanism operates by displacement of a lock arm 40 in a locking direction, and stops rotation of a take-up drum in a pull-out direction. A regulation member 56 restricts the displacement of the lock arm 40 in the locking direction caused by a reaction to the stopping of rotation of the take-up drum in a take-up direction M. A presser section 57 of the regulation member 56 is brought into contact with the lock arm 40 on the rotation of the take-up drum in the take-up direction M, and presses the lock arm 40 displaced in the locking direction. An engaging section 44 of the lock arm 40 engages with the presser section 57 of the regulation member 56, and maintains the regulation member 56 in a state in which the lock arm 40 is pressed by the presser section 57. |
