Patent ID: 7215062
Filing Date: 2007-05-08
Classification: H01L,H02N

Abstract:
1. An ultrasonic motor, comprising: a movable member disposed to undergo movement in response to a drive force; a substrate having a conductor pattern for conveying a drive signal from a drive circuit; a piezoelectric vibrator for undergoing oscillating movement in in response to the drive signal so as to contact the movable member and generate the drive force to drive the movable member; and a pair of support members provided on the substrate and disposed on opposite sides of the piezoelectric vibrator for mechanically fixedly supporting the piezoelectric vibrator only in a region thereof corresponding to a node of vibration of the piezoelectric vibrator, the support members having an L-shaped form, one leg of each support member being fixedly attached to the substrate, and another leg of each support member being fixedly attached to the piezoelectric element; wherein transmission of the drive signal form the conductor pattern to electrodes of the piezoelectric vibrator is effected only by the support member so that no conductor wires extend from the substrate to connect the drive circuit and the piezoelectric vibrator.