| 摘要 |
PROBLEM TO BE SOLVED: To provide a seat belt retractor which reduces the number of components and achieves downsizing and weight reduction, and to provide a seat belt device.SOLUTION: A pretensioner 5 includes: a rotor 51 which is coaxially connected with the spool 2 and has multiple engagement teeth 51a formed at an outer periphery; and power generation means 52 which engages with the engagement teeth 51a and rotates the rotor 51; and a cover member 53 which stores at least the rotor 51. The cover member 53 is disposed at the inner side of the base frame 3 and is formed so as to serve as a bearing of the spool 2. |
