| 摘要 |
PROBLEM TO BE SOLVED: To enable the execution of positioning by preventing the occurrence of looseness in an axial direction of a rotary shaft and the execution of smooth clutch operation. SOLUTION: A second rotary shaft 3 is supported at a clutch housing 1 through a bearing 6 and meanwhile, a positioning mechanism 14 of a first rotary shaft 2 consists of a peripheral groove 3f of a protrusion shaft part 3b of the secondary rotary shaft and a C-shaped retaining ring 20 relatively rotatably supported on the second rotary shaft 5. Even when unevenness in tolerance of a size occurs to the widths in an axial direction of the peripheral groove and the retaining ring as s result of the first rotary shaft being pulled in the direction of the second rotary shaft and by positioning in an axial direction, looseness in an axial direction of the first rotary shaft does not occur and smooth clutch operation is rendered practicable by positioning. |
