Vibration type actuator

Details Vibration type actuator Vibration type actuator

1998-07-21

2000-10-31

Ramirez, Nestor

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

31032301, 31032305, 31032306, 31032309, H01L 4104

Patent

active

061407410

ABSTRACT:
A vibration type actuator comprises an electro-mechanical energy conversion element, a plurality of elastic members sandwiching the conversion element therebetween, a fastening member for fastening the plurality of elastic members, a movable member contacting with at least one of the plurality of elastic members and rotated by vibration created in the elastic members, an output shaft rotated by the rotation of the movable member, and a case covering the elastic members and the movable member. The fastening member is formed with a through-hole through which the output shaft extends, and the output shaft extends through the through-hole and is rotatably supported at the positions of the axial end portions of the case.

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