| 摘要 |
PROBLEM TO BE SOLVED: To restrain energy consumed by a shift actuator from increasing in response to a capacity increase in a transmission, even when capacity of the transmission increases, by reducing the energy consumed by the shift actuator when operating the transmission. SOLUTION: In this continuously variable transmission 10, a thrust spring 20 energizes a movable sheave 257 to the fixed sheave 253 side along the axial direction by thrust DF corresponding to tension TF of a V belt 211, an outer diameter of a wrapping area of coming into pressure contact with the V belt 211 in a pulley shaft 262 is varied so as to follow an outer diameter change in the wrapping area in a pulley groove 16 caused by shift operation by the shift actuator 100, and a counterspring 18 energizes a movable sheave 207 to the fixed sheave 203 side along the axial direction by conterforce CF corresponding to the thrust DF of the thrust spring 20. COPYRIGHT: (C)2013,JPO&INPIT |
