JPH0464997U

JPH0464997U -

Info

Publication number: JPH0464997U
Application number: JP10855590U
Authority: JP
Priority date: 1990-10-16
Filing date: 1990-10-16
Publication date: 1992-06-04

Description

[Brief explanation of the drawing]

第１図および第２図は、本考案の第１実施例を
示す超音波モータの要部縦断面図であつて、第１
図は中央縦断面図、第２図は上記第１図のＸ−Ｘ
線に沿う断面図、第３図は、上記第１実施例にお
ける縦振動子の弾性体への固着部分の詳細を示す
拡大面図、第４図は、本考案の第２実施例を示す
超音波モータにおける屈曲振動子と縦振動子の正
面図、第５図は、本考案の第３実施例を示す超音
波モータにおける屈曲振動子と縦振動子の正面図
、第６図は、上記第５図の屈曲振動子と縦振動子
の要部を破截して示した側面図、第７図は、縦振
動子の弾性体への固着部分の従来例を示す拡大断
面図である。２……被駆動部材、４……縦振動子、５……弾
性体、５ｂ……凹部、６……圧電体（電気−機械
変換素子）、１１……屈曲振動子。 1 and 2 are longitudinal sectional views of main parts of an ultrasonic motor showing a first embodiment of the present invention, and FIG.
The figure is a central vertical cross-sectional view, and Figure 2 is the line X-X in Figure 1 above.
3 is an enlarged sectional view showing the details of the portion of the longitudinal vibrator fixed to the elastic body in the first embodiment, and FIG. 4 is a cross-sectional view showing the second embodiment of the present invention. FIG. 5 is a front view of a bending vibrator and a longitudinal vibrator in a sonic motor, FIG. 5 is a front view of a bending vibrator and a longitudinal vibrator in an ultrasonic motor showing a third embodiment of the present invention, and FIG. FIG. 5 is an exploded side view showing essential parts of a bending vibrator and a longitudinal vibrator, and FIG. 7 is an enlarged sectional view showing a conventional example of a portion of a longitudinal vibrator fixed to an elastic body. 2... Driven member, 4... Vertical vibrator, 5... Elastic body, 5b... Concave portion, 6... Piezoelectric body (electro-mechanical conversion element), 11... Flexural vibrator.

Claims

[Claims for Utility Model Registration] A bending vibrator consisting of an elastic body and an electro-mechanical conversion element fixed to the elastic body, which generates bending vibration when a high frequency voltage is applied to the electro-mechanical conversion element. and a longitudinal vibrator which is fixed on the nodal line of the bending vibration on the bending vibrator, is swung about the nodal line by the bending vibration, and expands and contracts in the amplitude direction of the bending vibration; a driven member that is pressed against the tip surface of the vertical vibrator, and by expanding and contracting the vertical vibrator in synchronization with the bending vibration, the driven member is moved between the bending vibrator and the vertical vibrator. An ultrasonic motor that moves relative to a vibrator, wherein a base end of the vertical vibrator is fixed to a bottom surface of a recess provided on a nodal line of the bending vibrator. sonic motor.