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    • 1. 发明申请
    • ULTRASONIC MOTOR
    • 超声波电机
    • US20090278421A1
    • 2009-11-12
    • US12463195
    • 2009-05-08
    • Masaki HAMAMOTOTeruhisa Kotani
    • Masaki HAMAMOTOTeruhisa Kotani
    • H02N2/12
    • H02N2/103H02N2/004H02N2/0055
    • An ultrasonic motor has a cylindrical rotor for performing a mechanical output, a plurality of ultrasonic vibrators each having two points in internal contact with the rotor, and a preload mechanism for pressing the ultrasonic vibrators from an inside toward an outside of the rotor, and the ultrasonic vibrators are provided to be rotatable relative to the preload mechanism. With this configuration, an internal contact type ultrasonic motor capable of performing efficient drive by using a plurality of ultrasonic vibrators each in contact with a cylindrical rotor at two points and allowing contact at all contact points without requiring a high machining accuracy can be provided.
    • 超声波马达具有用于进行机械输出的圆柱形转子,具有与转子内部接触的两个点的多个超声波振子,以及用于将超声波振动器从内侧朝向转子的外部按压的预加载机构, 超声波振动器设置成可相对于预加载机构旋转。 采用这种结构,可以提供一种内部接触型超声波电动机,其能够通过使用多个超声波振动器来实现高效率的驱动,所述超声波振动器在两点处与圆柱形转子接触,并且可以在不需要高加工精度的情况下在所有接触点进行接触。
    • 3. 发明申请
    • ULTRASONIC MOTOR AND ULTRASONIC VIBRATOR
    • 超声波电机和超声波振动器
    • US20090256445A1
    • 2009-10-15
    • US12418258
    • 2009-04-03
    • Teruhisa KotaniMasaki Hamamoto
    • Teruhisa KotaniMasaki Hamamoto
    • H02N2/12
    • H02N2/103H02N2/003H02N2/004
    • An ultrasonic motor includes a driven object, a piezoelectric element for driving the driven object, a vibration plate including a notch having an inner peripheral surface of an arc-shaped form having a central angle larger than 180 degrees and being vibrated by the piezoelectric element, and a contact portion made of a material different from that of the vibration plate, having a portion overlapping the piezoelectric element in a plan view and being smaller in thickness than the piezoelectric element, attached to the notch of the vibration plate by press fitting or forced fitting and being in contact with the driven object. Thereby, the ultrasonic motor can have a high shock resistance and a high wear resistance, and can be driven with high efficiency.
    • 超声波电动机包括被驱动体,用于驱动被驱动体的压电元件,振动板,其具有具有中心角度大于180度并被压电元件振动的弧形形状的内周面的凹口, 以及由与振动板不同的材料制成的接触部分,其具有与压电元件重叠的部分,并且厚度小于压电元件,该压电元件通过压配或强制安装在振动板的凹口上 装配并与被驱动物接触。 因此,超声波电动机可以具有高抗冲击性和高耐磨性,并且可以高效率地驱动。
    • 4. 发明授权
    • Ultrasonic motor and ultrasonic vibrator
    • 超声波电机和超声波振动器
    • US08058773B2
    • 2011-11-15
    • US12418258
    • 2009-04-03
    • Teruhisa KotaniMasaki Hamamoto
    • Teruhisa KotaniMasaki Hamamoto
    • H01L41/04H02N2/12
    • H02N2/103H02N2/003H02N2/004
    • An ultrasonic motor includes a driven object, a piezoelectric element for driving the driven object, a vibration plate including a notch having an inner peripheral surface of an arc-shaped form having a central angle larger than 180 degrees and being vibrated by the piezoelectric element, and a contact portion made of a material different from that of the vibration plate, having a portion overlapping the piezoelectric element in a plan view and being smaller in thickness than the piezoelectric element, attached to the notch of the vibration plate by press fitting or forced fitting and being in contact with the driven object. Thereby, the ultrasonic motor can have a high shock resistance and a high wear resistance, and can be driven with high efficiency.
    • 超声波电动机包括被驱动体,用于驱动被驱动体的压电元件,振动板,其具有具有中心角度大于180度并被压电元件振动的弧形形状的内周面的凹口, 以及由与振动板不同的材料制成的接触部分,其具有与压电元件重叠的部分,并且其厚度比压电元件的厚度小,通过压配或强制安装在振动板的凹口上 装配并与被驱动物接触。 因此,超声波电动机可以具有高抗冲击性和高耐磨性,并且可以高效率地驱动。
    • 5. 发明授权
    • Ultrasonic motor
    • 超声波电机
    • US07932660B2
    • 2011-04-26
    • US12463195
    • 2009-05-08
    • Masaki HamamotoTeruhisa Kotani
    • Masaki HamamotoTeruhisa Kotani
    • H02N2/00
    • H02N2/103H02N2/004H02N2/0055
    • An ultrasonic motor has a cylindrical rotor for performing a mechanical output, a plurality of ultrasonic vibrators each having two points in internal contact with the rotor, and a preload mechanism for pressing the ultrasonic vibrators from an inside toward an outside of the rotor, and the ultrasonic vibrators are provided to be rotatable relative to the preload mechanism. With this configuration, an internal contact type ultrasonic motor capable of performing efficient drive by using a plurality of ultrasonic vibrators each in contact with a cylindrical rotor at two points and allowing contact at all contact points without requiring a high machining accuracy can be provided.
    • 超声波马达具有用于进行机械输出的圆柱形转子,具有与转子内部接触的两个点的多个超声波振子,以及用于将超声波振动器从内侧朝向转子的外部按压的预加载机构, 超声波振动器设置成可相对于预加载机构旋转。 采用这种结构,可以提供一种内部接触型超声波电动机,其能够通过使用多个超声波振动器来实现高效率的驱动,所述超声波振动器在两点处与圆柱形转子接触,并且可以在不需要高加工精度的情况下在所有接触点进行接触。