| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultrasonic motor configured to drive a driven member by an elliptical vibration generated by a vibrator and capable of stably pressing the vibrator against the driven member with a simple structure.SOLUTION: An ultrasonic motor includes vibrators 102, 103 configured to generate an elliptical vibration, a driven member 101 configured to be driven by the vibrator, holding means configured to hold the vibrator, and pressure means 108, 109 configured to press the vibrator against the driven member. The driven member is driven according to the elliptical vibration of the vibrator. The holding means includes a first holding member 104 configured to hold the vibrator, and a second holding member 106 configured to press the vibrator against the driven member. The first holding member and the second holding member are relatively movable in a direction perpendicular to a contact surface of the driven member with the vibrator. |
