| 摘要 |
PROBLEM TO BE SOLVED: To shorten machining time of the pulley of a continuously variable transmission so as to enhance productivity.SOLUTION: By applying a polishing machining in a belt's slip direction to the sheave surface 11a of the pulley 11, one out of two edges 13, 14 provided on both the sides in the circumferential direction of the opening of a groove 12, that is, the edge 13 in the belt's slip direction at ahead side is brought to be finished smoother than the edge 14 at rear side in the belt's slip direction. |
