| 摘要 |
PROBLEM TO BE SOLVED: To surely operate a lock mechanism of a transmission ratio varying mechanism by changing a transmission ratio between an input shaft-an output shaft by rotary driving of a motor, performing an operation control for the motor together with an operation control of a driving means and controlling locking of a tilting member and a rotating member and releasing of the locking. SOLUTION: A lock arm 150 is normally energized so as to be tilted to a lock holder 140 side with a supporting pin 152 as a center by an action of a spring 153, a state that an engagement projecting part 151 of the lock arm 150 enters into an engagement recessed part 141 of the lock holder 140 is made, the lock holder 140 and the lock arm 150 are locked each other and a lock state is made. When an electromagnetic coil 154 is energized, repulsive force is generated between the coil 154 and a metallic plate 155, the lock arm 150 is tilted so as to be away from the lock holder 140, and the engagement projecting part 151 of the lock arm 150 is moved to the outside of the engagement recessed part 141 of the lock holder 140 and locking of the lock holder 140 and the lock arm 150 is released. |
