| 摘要 |
PROBLEM TO BE SOLVED: To reduce the friction of slide contact parts of rotating shafts of fixed pulleys, a ball and movable pulleys, found in a conventional belt type continuously variable transmission. SOLUTION: The pulleys P1, P2 are mounted for winding a belt B on the rotating shafts S1, S2, and respectively provided with the fixed pulleys 1, 2, and the movable pulleys 3, 4 holding the ball 10 with the rotating shafts S1, S2, and a hard carbon coating film is formed on at least one of slide contact faces of the rotating shafts S1, S2 of the fixed pulleys 1, 2, the ball 10 and the movable pulleys 3, 4 slid and kept into contact with each other under a lubricant, to provide the slide contact part face with sufficiently high hardness, to improve scuffing resistance and abrasion resistance, and to remarkably reduce the friction. COPYRIGHT: (C)2005,JPO&NCIPI |
