JPH0226386U

JPH0226386U -

Info

Publication number: JPH0226386U
Application number: JP10113188U
Authority: JP
Priority date: 1988-08-01
Filing date: 1988-08-01
Publication date: 1990-02-21

Description

[Brief explanation of drawings]

第１図〜第６図はこの考案の一実施例を示し、
第１図ａは正面図、同図ｂは側面図、同図ｃは平
面図、第２図は第１図ａのＡ―Ａ線に沿う平面で
の断面図、第３図ａ，ｂは絶縁フイルムの正面図
と側面図、同図ｃ，ｄは一方の圧電素子の正面図
と側面図、同図ｅ，ｆは他方の圧電素子の正面図
と側面図、第４図ａ，ｂは第１図ａのＡ―Ａ線お
よびＢ―Ｂ線に沿う平面での断面における分極方
向の模式図、第５図ａ，ｂは圧電素子の分極方法
を説明するための側面図および結線図、第６図は
動作波形の線図である。第７図ａ，ｂは従来の超
音波リニアモータの正面図と側面図である。２ａ，２ｂ……長さ共振用圧電素子、３ａ，３
ｂ……屈曲共振用圧電素子、４ａ，４ｂ……駆動
子。 Figures 1 to 6 show an embodiment of this invention,
Figure 1a is a front view, Figure b is a side view, Figure c is a plan view, Figure 2 is a sectional view taken along line A-A in Figure 1a, Figures 3a and b are Figures c and d are front and side views of one piezoelectric element, e and f are front and side views of the other piezoelectric element, and Figures a and b are front and side views of the insulating film. A schematic diagram of the polarization direction in a cross section taken along the A-A line and the B-B line in FIG. FIG. 6 is a diagram of operating waveforms. FIGS. 7a and 7b are a front view and a side view of a conventional ultrasonic linear motor. 2a, 2b...Piezoelectric element for length resonance, 3a, 3
b... Piezoelectric element for bending resonance, 4a, 4b... Drive element.

Claims

[Scope of utility model registration request]

A pair of rectangular piezoelectric elements that handle length resonance,
An ultrasonic linear motor comprising a driving section that is integrated with a pair of rectangular piezoelectric elements that cause bending resonance in a longitudinal direction orthogonal to the length direction, and that is in pressure contact with a moving object.