| 摘要 |
Provided is an ultrasonic motor device which is easy to downsize and superior in assembling workability. The ultrasonic motor device includes a first ultrasonic motor unit and a second ultrasonic motor unit each of which includes: a vibrator which periodically vibrates; a case which accommodates the vibrator; a moving member which is in contact with the vibrator; and a biasing member which applies a pressing force to the moving member and the vibrator to bring the moving member and the vibrator into pressing contact with each other; a base member to which the case of the first ultrasonic motor unit is fixed; a first frame which is fixed to the moving member of the first ultrasonic motor unit and to which the case of the second ultrasonic motor unit is fixed; and a second frame which is fixed to the moving member of the second ultrasonic motor unit. |
