| 摘要 |
PROBLEM TO BE SOLVED: To prevent knocking noise by minimize the backlashes in the circumferential direction of a movable sheave and spider of a drive pulley and improve the imposing workability in a V-belt non-stage transmission gear. SOLUTION: A running torque can be transmitted between a spider 44 and the movable sheave 42 by running torque transmitting parts K-1, K-2, K-3, K-4 equally spaced at four positions in the circumferential direction, an arm part 44a is formed at the spider 44 as the running torque transmitting parts K-1, K-2, K-3, K-4, and a guide projection 49, engaging with each arm part 44a from both sides of the circumferential direction is formed at the movable sheave 42. Guide shoes 80, 81 for guiding the movable sheave slidable in the axial direction are interposed between both side faces 67, 68 in the circumferential direction of each arm part 44a and the guide projection 49. A clearance- adjusting guide shoe 81 is arranged at two arm parts 44a on the diagonal line, on the same side in the circumferential direction.
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