| 摘要 |
PURPOSE: To provide a rotary part easily removed by supporting with a supporting part having elasticity, having a protrusion part engaged corresponding to a shaft groove part, and providing a stop member of separating the protrusion part from the groove part by pressing an operating part. CONSTITUTION: A pawl 6 as a protrusion part is provided in the periphery of an internal wall surface in a point end part of a pair of stop members 5 having elasticity, and when a rotary part 3 is mounted in a shaft 1, the pawl 6 is brought into contact with a stop part 2 in a point end part of the shaft 1, to prevent the rotary part 3 from coming off. In the point end part of the stop member 5, an operating part 7 is provided in the point end part of a supporting part 5c integrally formed with the stop member 5 to extend from this stop member and to have elasticity. By rataining the operating part 7 to a side (arrow mark A) of the shaft 1, the stop member 5 is brought into contact with the shaft 1, to deflect a pair of the supporting parts 5c in a part of a groove part 4, where the pawl 6 is advanced, with the thin thickness supporting part 5c serving as a supporting point, and the pawl 6 can be detached from the groove part 4. Accordingly, the rotary part stopped to the shaft can be easily removed by operating the operating part. |
