Piezoelectric actuator

Details Piezoelectric actuator Piezoelectric actuator

1988-03-23

1988-11-08

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

101 9348, 400124, H01L 4108

Patent

active

047836105

ABSTRACT:
In a piezoelectric actuator including a piezoelectric element, a pair of lever arms arranged on opposite sides of the piezoelectric element and a flexible member mounted between free ends of the lever arms, wherein deformation of the piezoelectric element is magnified to greatly displace the flexible member at a central position thereof; the improvement wherein the flexible member comprises a loop member and further comprising a support member for supporting the flexible member located at the central position of the flexible member in such a manner that opposite portions at the central position of the flexible member between the lever arms are outwardly flexed, whereby the flexible member has a substantially diamond shape in plan with a diagonal defined by a center line connecting the lever arms.

REFERENCES:
patent: 4318023 (1982-03-01), O'Neill
patent: 4547086 (1985-10-01), Matsumoto et al.
patent: 4570095 (1986-02-01), Uchikawa
patent: 4633118 (1986-12-01), Kosugi
patent: 4675568 (1987-06-01), Uchikawa et al.
patent: 4703215 (1987-10-01), Asano et al.
patent: 4706230 (1987-11-01), Inoue et al.

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