| 摘要 |
PROBLEM TO BE SOLVED: To provide a seat belt rectractor configured to allow a spring case for storing a coil spring to be connected to one end of a take-up drum, to be quickly attached to a member to be attached.SOLUTION: A take-up biasing mechanism part always biasing a take-up drum so as to rotate it in a webbing take-up direction includes a spring case 67 that stores a coil spring with an inside end to be connected to one end of the take-up drum. The spring case 67 has a plurality of locking pieces 8A protruding radially outside from an outer circumferential part with respect to a rotating shaft of the take-up drum. The member to be attached has a plurality of holding parts 72 which are arranged in positions facing the locking pieces 8A to hold the spring case by the locking pieces locked when the spring case 67 is rotated around the rotating shaft in contact with the member to be attached. The spring case 67 and the member to be attached have a fixing mechanism part for fixing the spring case 67 so as not to rotate relatively to the member to be attached. |
