초록 ▼

An actuator using an electromechanical transducer capable of maintaining stable driving function even under a severe environment of high temperature and/or high humidity, or the like, and an apparatus mounted with the actuator. The actuator are disclosed is constituted to move a slider block frictio

An actuator using an electromechanical transducer capable of maintaining stable driving function even under a severe environment of high temperature and/or high humidity, or the like, and an apparatus mounted with the actuator. The actuator are disclosed is constituted to move a slider block frictionally coupled to a drive shaft in a predetermined direction by reciprocating oscillation having different speeds of the drive shaft driven by elongation and contraction displacements of a piezoelectric element and the piezoelectric element, a portion where the piezoelectric element is coupled to the drive shaft and a portion where the piezoelectric element is coupled to a frame is sealed by silicone resin, fluorinated resin or the like to thereby protect them from the high temperature and/or high humidity environment.

대표청구항 ▼

[What is claimed is:] [1.]an electromechanical transducer having a first end and a second end;a fixing member fixedly coupled to said first end of the electromechanical transducer for fixing the electromechanical transducer;a driving member fixedly coupled to said second end of the electromechanical

[What is claimed is:] [1.]an electromechanical transducer having a first end and a second end;a fixing member fixedly coupled to said first end of the electromechanical transducer for fixing the electromechanical transducer;a driving member fixedly coupled to said second end of the electromechanical transducer for being displaced along with the electromechanical transducer;a driven member frictionally coupled to the driving member such that the driven member is displaced along the driving member when the electromechanical transducer is active; anda sealing structure sealing at least one of a portion where the electromechanical transducer is fixedly coupled to the fixing member and a portion where the electromechanical transducer is fixedly coupled to the driving member, wherein the sealing structure comprises a sealing material.