| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a belt-type continuously variable transmission preventing a roller from coming off from a spline groove, and reducing a manufacturing cost.SOLUTION: A belt-type continuously variable transmission 1 includes: a fixed sheave 10 integrated with a shaft portion 9; and a moving sheave 11 attached to the shaft portion 9 so as to move in an axial direction so as to approach to or separated from the fixed sheave 10. A roller 27 for making the relative movement of the shaft portion 9 and the moving sheave 11 smooth is interposed between a spline groove 25 formed in an axial direction on an outer peripheral surface of the shaft portion 9 and a spline groove 26 formed in an axial direction on an inner peripheral surface of the moving sheave 11. The spline groove 25 which is either one of the spline grooves is formed as a recessed portion in which the roller 27 is fitted and on which both end portions in an axial direction of the roller 27 abut to regulate the movement in the axial direction of the roller 27.</p> |
