the input gear 203 a fixed to the ivt input shaft 1 a rotates in a clockwise direction the counter gear 203 d rotates in a counter clockwise direction and the output gear 203 b and the planet carrier 205 b respectively rotate in a clockwise direction with respect to the cvt 2 the input disks 21 fixed to the cvt input shaft 1 b rotate in a clockwise direction the output disks 22 normally rotate in the opposite direction to the input disk 21 thus the output disks 22 and the cvt output gear 230 rotate in a counter clockwise direction the gear 204 a which meshes with the cvt output gear 230 and the sun gear 205 a which engages with the gear 204 a rotate in a clockwise direction the sun gear 205 a and the planet carrier 205 b both rotate in a clockwise direction in the planetary gear set 205 the rotational direction of the ring gear 205 c varies in response to the speed ratio of the rotation of the sun gear 205 a and the planet carrier 205 b when the vehicle is travelling forward the ring gear 205 c rotates in the same clockwise manner as the sun gear 205 a and the planet carrier 205 b consequently the ivt output gear 207 which is joined to the ring gear 205 c via the ivt output shaft 206 rotates in a.