Linear vibration actuator utilizing combined bending and longitu

Details Linear vibration actuator utilizing combined bending and longitu Linear vibration actuator utilizing combined bending and longitu

1995-12-22

1997-09-09

Williams, Hezron E.

Measuring and testing

Vibration

Vibrator

310323, G01N 2902, H01L 4108

Patent

active

056659180

ABSTRACT:
A vibration driven actuator includes a vibration member for causing an electro-mechanical energy conversion element to excite bending and longitudinal vibrations, and producing a driving force by using specific vibrations obtained by synthesizing the bending and longitudinal vibrations, and a projection portion formed at a position, on at least one of the energy conversion element and the vibration member, which corresponds to a node of the bending vibrations. The projection portion is used for supplying a signal to the energy conversion element.

REFERENCES:
patent: 3004176 (1961-10-01), Mason et al.
patent: 4752711 (1988-06-01), Tsukimoto et al.
patent: 5191688 (1993-03-01), Takizawa et al.
patent: 5200665 (1993-04-01), Iijima
patent: 5416375 (1995-05-01), Funakubo et al.
patent: 5442251 (1995-08-01), Kaida et al.

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