| 摘要 |
PROBLEM TO BE SOLVED: To suppress the divergence of a skew angle.SOLUTION: A continuously variable transmission comprises: first to third power transmission members 10, 20, 30; a plurality of planetary balls 40; a non-rotatable first guide member 50A including a first guide portion 51 guiding a first protrusion portion 41a of a support shaft 41 of each planetary ball 40 in a radial direction; a rotatable second guide member 50B including a second guide portion 52 guiding a second protrusion portion 41b of the support shaft 41 in the radial direction; a gear change member 50C rotatable in a circumferential direction and including a gear change portion 53 whose longitudinal direction is inclined with respect to the radial direction so as to keep balance between a force acting on the second protrusion portion 41b and a force acting on a sidewall of the gear change portion 53 during normal rotation; and an actuator 81 rotating the gear change member 50C, a width of the second guide portion 52, if being concave, in an orthogonal direction to the radial direction of a region used at a change gear ratio during reverse rotation being formed smaller than a width thereof in the orthogonal direction in a region used at a change gear ratio during normal rotation. |
