| 摘要 |
PURPOSE:To obtain a rod-shaped ultrasonic motor capable of fixing any portion of the main body of a vibrating element without giving any special vibration isolator and without disturbing the vibration of the vibrating element, by fixing a contacting element connected by pressure welding to the vibrating element at the predetermined position and by rotating the vibrating element. CONSTITUTION:If an AC voltage V1 is applied between an electrode plate 12 and an electrode plate 11 and an AC voltage V2 is applied between an electrode plate 12 and an electrode plate 13, then a vibrating element A makes a circular motion similar to a motion created by the turning rope for rope skipping with the center of motion located at the center of shaft of said vibrating element. By utilizing the rope skipping motion at a conical portion 1a of an oscillator 1, the vibrating element A itself is rotated by the frictional force between the conical portion 1a and a supporting portion 2 as a contacting element fixed to a predetermined position. In this case, the supporting portion 2 is in stationary state without rotating and also is isolated from the vibration of the vibrating element A, therefore, the supporting portion 2 is freely fixed without affecting the vibration of the vibrating element A. |
