Vibration actuator

Details Vibration actuator Vibration actuator

1995-04-25

1996-11-26

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

055788874

ABSTRACT:
A vibration actuator including a ring-like vibration member for generating a vibration and a ring-like contact member having a contact portion which is in contact with the vibration member. The contact member and the vibration member are moved relative to each other rotated by the vibration of the vibration member. The contact member has a first portion between the contact portion and an inner portion. The thickness of the first portion is gradually reduced with respect to the contact portion and the inner portion.

REFERENCES:
patent: 5034646 (1991-07-01), Shirasaki
patent: 5053669 (1991-10-01), Saeki et al.
patent: 5107163 (1992-04-01), Umemura et al.
patent: 5148075 (1992-09-01), Shirasaki
patent: 5172023 (1992-12-01), Kawai et al.
patent: 5329201 (1994-07-01), Shirasaki
patent: 5352950 (1994-10-01), Shirasaki
patent: 5363006 (1994-11-01), Yano et al.
patent: 5406160 (1995-04-01), Shirasaki
patent: 5440191 (1995-08-01), Takagi
patent: 5448129 (1995-09-01), Sumihara et al.

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