Vibration actuator

Details Vibration actuator Vibration actuator

1997-09-10

1999-04-06

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

058923160

ABSTRACT:
A vibration actuator comprising a vibration element including an elastic member and an electromechanical converting element and a relative movement member maintained in pressure contact with a driving face of the vibration element, wherein the electromechanical converting element includes a longitudinal vibration generating electromechanical converting element for generating a longitudinal vibration for generating a displacement along the axial direction of the vibration element, and a torsional vibration generating electromechanical converting element for generating a torsional vibration for generating a torsional displacement around the axis of the vibration element, and the longitudinal vibration generating electromechanical converting element and the torsional vibration generating electromechanical converting element are provided on a substantially same plane.

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patent: 5233274 (1993-08-01), Honda et al.
patent: 5319278 (1994-06-01), Myohga et al.
patent: 5543879 (1996-08-01), Takagi

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