Oscillatory wave motor

Abstract

PURPOSE: To fix a moving unit solidly to an output shaft without providing an elastic sheet between them by a method wherein the moving unit is composed of a molded unit made of composite resin an fitted and fixed to the output shaft with an elastic element therebetween without employing an intermediate metal member made of metal such as aluminum alloy. CONSTITUTION: Thermosetting resin which has a glass transition point not lower than 100°C and contains carbon fibers (or graphite fibers, carbon whiskers or potassium titanate fibers) is injection-molded so as to have the reinforcing fiber material oriented along the circumferential direction of a molded annular moving unit 207. Thus the moving unit 207 made of composite resin containing the reinforcing fibers which are oriented along the circumferential direction is formed by an injection molding method. After the surface of the moving unit 207 is polished, the moving unit 207 is assembled into an oscillatory wave motor by fixing it to the output shaft 110 of the motor with a rubber-like elastic element 217 therebetween. COPYRIGHT: (C)1992,JPO&Japio

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Cited By (6)

    Publication numberPublication dateAssigneeTitle
    EP-0932208-A1July 28, 1999CERA Handelsgesellschaft mbHPiezoelectric motor
    JP-2003033058-AJanuary 31, 2003Nidec Copal Corp, 日本電産コパル株式会社Ultrasonic motor device
    JP-WO2014084184-A1January 05, 2017株式会社ダイセルアクチュエータ用弾性体及び圧電アクチュエータ
    US-6867532-B2March 15, 2005The Brady Group Inc., Trintec Industries, Inc.Long life piezoelectric drive and components
    WO-2014084183-A1June 05, 2014株式会社ダイセルCorps élastique pour actionneur, et actionneur piézoélectrique
    WO-2014084184-A1June 05, 2014株式会社ダイセルCorps élastique pour actionneur, et actionneur piézoélectrique