Vibration driven actuator

Details Vibration driven actuator Vibration driven actuator

H - Electricity

02

K

H02K 33/00 (2006.01) G03B 13/36 (2006.01) H01L 41/09 (2006.01)

Patent

CA 2048399

A vibration driven motor comprises a bar-shaped elastic member and a piezo-electric element for causing a plurality of bending mode vibrations having a predetermined phase difference therebetween in a plurality of planes of the elastic member in order to drive a movable body by a rotary motion caused in particles of the elastic member. A support member which extends along an axial center of the bar-shaped elastic member is provided at one end or each end of the elastic member.

n moteur commandé par vibrations comprend un élément élastique en forme de barre et un élément piézoélectrique permettant de provoquer une pluralité de vibrations en mode courbe ayant une différence de phase préétablie entre une pluralité de plans de l'élément élastique pour commander un corps mobile dans un mouvement rotatif originant dans les particules de l'élément élastique. Un élément de soutien qui se prolonge le long d'un centre axial de l'élément élastique en forme de barre est fourni à l'une ou à chacune des extrémités de l'élément élastique.

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