| 摘要 |
PROBLEM TO BE SOLVED: To provide a pulley of a continuously variable transmission causing no impairment of straightness of sliding surfaces of rotary bodies and no lowering in surface accuracy due to calking a hydraulic actuator constituting member to the back face side of the rotary bodies (sheaves). SOLUTION: In the CVT 10, the movable rotary bodies 28 and 34 of variable pulleys 20 and 22 have annular calking projections 70 and 80 formed on a back face so as to project in the rotational axis direction. The calking projections 70 and 80 are calked and deformed toward flanges 68 and 78 fitted to the outside so that movable members 44 and 56 being the constituting member of hydraulic actuators 30 and 36 are concentrically calked to the back face of the movable rotary bodies 28 and 34. Thus, since deformation of the calking projections 70 and 80 becomes the almost radial direction and has little influence on the conical sliding surfaces 40 and 52 of the movable rotary bodies 28 and 34, impairment of the straightness of the conical sliding surfaces 40 and 52 of the movable rotary bodies 28 and 34 and reduction in the surface accuracy due to calking the movable members 44 and 56 can be suitably restrained.
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