Vibration actuator

Details Vibration actuator Vibration actuator

1997-04-11

2000-03-28

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

31032316, H02N 200

Patent

active

060435860

ABSTRACT:
A vibration actuator produces a driving force by generating elliptic motion in the surface of an elastic member through electromechanical converting elements. The vibration actuator then generates relative motion between the elastic member and a relative moving member which is in compressive contact with the elastic member The electro-mechanical converting elements, in the form of piezoelectric elements, generate longitudinal vibrations and bending vibrations in the elastic member. The elastic member has a rectangular plate shape and includes a plurality of driving force output units which contact the relative moving member. Plural sliding members are respectively mounted on portions of the plurality of driving force output units such that the sliding members do not fully extend across the driving force output units in a short side direction.

REFERENCES:
patent: 5039899 (1991-08-01), Yamaguchi
patent: 5101132 (1992-03-01), Yamaguchi
patent: 5136200 (1992-08-01), Takizawa et al.
patent: 5140215 (1992-08-01), Yamaguchi
patent: 5191688 (1993-03-01), Takizawa et al.
patent: 5200665 (1993-04-01), Iijuma
patent: 5416375 (1995-05-01), Funakubo et al.
patent: 5698930 (1997-12-01), Takagi
patent: 5818147 (1998-10-01), Kobayashi et al.
patent: 5821670 (1998-10-01), Tobe et al.
U.S. application No. 08/595,450, U.S. Pat. No. 5,698,930, Tadao Takagi, filed Feb. 5, 1996, Nikon Corporation.
Piezoelectric Linear Motors for Application to Driving a Light Pick-Up Element, (Mr. Yoshiro Tomikawa et al., 5th Electromagnetic Force Related Dynamics Symposium, Collected Papers, Jun. 9-11, 1993, pp. 393-398) (with English abstract).
Ultrasonic Motors, Theory and Applications, S. Ueha, Y. Tomikawa, M. Kurosawa, N. Nakamura, Clarendon Press, Oxford, 1993, all pages.

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