JPH0182690U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の第１実施例の構成を示す斜視
図、第２図は本考案の第２実施例の構成を示す斜
視図、第３図は従来の超音波モータの構成を示す
斜視図である。 １ａ，１ｂ…厚みすべり圧電振動子、２…Ｔ字
状保持部材、２ａ…立設部、２ｂ…底壁部、３…
コ字状弾性体、３ａ，３ｂ…両端部、３ｃ…折曲
部外側面、４…圧電素子、５ａ，５ｂ…電圧印加
用リード線、６…回転軸、２０…屈曲変位発生用
の圧電振動子。 Fig. 1 is a perspective view showing the structure of a first embodiment of the present invention, Fig. 2 is a perspective view showing the structure of a second embodiment of the invention, and Fig. 3 is a perspective view showing the structure of a conventional ultrasonic motor. It is a diagram. 1a, 1b... Thickness sliding piezoelectric vibrator, 2... T-shaped holding member, 2a... Standing part, 2b... Bottom wall part, 3...
U-shaped elastic body, 3a, 3b...both ends, 3c...outer surface of the bent part, 4...piezoelectric element, 5a, 5b...lead wire for voltage application, 6...rotating shaft, 20...piezoelectric vibration for generating bending displacement Child.

Claims (1)

【実用新案登録請求の範囲】 (1) Ｔ字状に形成された保持部材と、この保持
部材の立設部の両端面を両端部で挟持するように
配設されたコ字状弾性体と、このコ字状弾性体の
折曲部外側面に圧接する如く配置されたロータと
、前記保持部材の立設部と前記コ字状弾性体の両
端部との間に介在し上記コ字状弾性体に往復回転
運動を生じさせる如く設けられた一対の厚みすべ
り圧電振動子と、前記保持部材の底壁部に取付け
られ前記コ字状弾性体を回転面に垂直な方向へ振
動変位させる圧電振動子とを具備し、前記コ字状
弾性体は、前記厚みすべり圧電振動子を挟持して
いる部分の厚みが他の部分の厚みより大きく設定
されていることを特徴とする超音波モータ。 (2) コ字状弾性体を回転面に垂直な方向へ振動
変位させる圧電振動子は、屈曲変位を起こす板状
圧電振動子であることを特徴とする実用新案登録
請求の範囲第１項記載の超音波モータ。[Claims for Utility Model Registration] (1) A holding member formed in a T-shape, and a U-shaped elastic body disposed so as to sandwich both end surfaces of an upright portion of the holding member. a rotor disposed so as to be in pressure contact with the outer surface of the bent portion of the U-shaped elastic body; and a rotor interposed between the upright portion of the holding member and both ends of the U-shaped elastic body; a pair of thickness-slide piezoelectric vibrators provided to cause the elastic body to reciprocate rotational motion; and a piezoelectric vibrator attached to the bottom wall of the holding member to vibrate and displace the U-shaped elastic body in a direction perpendicular to the rotation surface. an ultrasonic motor, comprising: a vibrator, wherein the U-shaped elastic body has a thickness greater at a portion that clamps the thickness-shear piezoelectric vibrator than at other portions. (2) Claim 1 of the utility model registration claim characterized in that the piezoelectric vibrator that vibrates and displaces the U-shaped elastic body in a direction perpendicular to the rotating surface is a plate-shaped piezoelectric vibrator that causes bending displacement. ultrasonic motor.