JPS61162296U

JPS61162296U -

Info

Publication number: JPS61162296U
Application number: JP1985046978U
Authority: JP
Priority date: 1985-03-29
Filing date: 1985-03-29
Publication date: 1986-10-07

Description

[Brief explanation of drawings]

第１図はこの考案を具体化したリニア型アクチ
ユエータの要部正断面図、第２図は同じく電気ブ
ロツク回路図、第３図及び第４図はこの考案の別
例を示す図であつて、第３図は第１の圧電素子を
複数枚にした場合のリニア型アクチユエータの要
部正断面図、第４図は第２の圧電素子を複数枚に
した場合のリニア型アクチユエータの要部正断面
図である。図中、１は円筒ホルダ、２はカバー、３は円筒
ケース、４は軸受、５はロツド、６はフレーム、
７は第１の圧電素子、８は第２の圧電素子、９は
スプリング、１０は制御装置である。 FIG. 1 is a front sectional view of the essential parts of a linear actuator that embodies this invention, FIG. 2 is an electric block circuit diagram, and FIGS. 3 and 4 are diagrams showing other examples of this invention. Figure 3 is a front cross-sectional view of the main part of a linear actuator when a plurality of first piezoelectric elements are used, and Figure 4 is a front cross-sectional view of the main part of a linear actuator when a plurality of second piezoelectric elements are used. It is a diagram. In the figure, 1 is a cylindrical holder, 2 is a cover, 3 is a cylindrical case, 4 is a bearing, 5 is a rod, 6 is a frame,
7 is a first piezoelectric element, 8 is a second piezoelectric element, 9 is a spring, and 10 is a control device.

Claims

[Claims for Utility Model Registration] 1. A first piezoelectric element disposed to be movable in the axial direction relative to the rod and deviated in the axial direction; a second piezoelectric element disposed so as to be movable in the axial direction of the rod, and clamping the rod by being deviated in a direction perpendicular to the axial direction; and a two-layer structure including the first and second piezoelectric elements. a support member on the first piezoelectric element side of the body that restricts movement of the two-layer body; and an elastic member on the second piezoelectric element side of the two-layer body that presses the second piezoelectric element toward the support member side. A linear actuator consisting of parts. 2. The support member is a cylindrical case into which the rod is slidably inserted, and is supported and fixed,
2. A linear actuator according to claim 1, which has a two-layer body made of first and second piezoelectric elements and an elastic member disposed therein.