| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ultrasonic motor having an abrasion particle scatter preventive function which has a dust collecting function preventing abrasion fine particles from being scattered and from giving harmful influences upon peripheral functional members and preventing the fine particles from being accumulated in a contact part between a vibrator and a rotor an hence from interfering the drive of the rotor. <P>SOLUTION: In this ultrasonic motor having an abrasion particles scatter preventive function, an adhesive member, of which the surface is an adhesive surface and which charges the surface with electrostatic charge in order to capture abrasion fine particles, is provided in the neighborhood of the contact part between the rotor and vibrator of the ultrasonic motor on the rotor side surface region of the vibrator. Further, in order to avoid the influence of the existence of the adhesive member and captured abrasion fine particles layers upon the vibration of the vibrator, the adhesive member is placed on the rotor side surface of the vibrator which constitutes a node in the drive vibration mode. <P>COPYRIGHT: (C)2003,JPO |
