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    VIBRATION ACTUATOR HAVING A STABLE ROTATIONAL DRIVING PERFORMANCE, AND ELECTRONIC APPARATUS
    2.
    发明申请
    VIBRATION ACTUATOR HAVING A STABLE ROTATIONAL DRIVING PERFORMANCE, AND ELECTRONIC APPARATUS 审中-公开

    公开(公告)号：US20180019689A1

    公开(公告)日：2018-01-18

    申请号：US15543071

    申请日：2016-03-18

    申请人： CANON KABUSHIKI KAISHA

    发明人： Hiroyuki Seki

    IPC分类号： H02N2/10 ,  H02N2/12 ,  H02N2/00 ,  H01L41/083

    CPC分类号： H02N2/106 ,  H01L41/0835 ,  H02N2/0015 ,  H02N2/0045 ,  H02N2/0065 ,  H02N2/103 ,  H02N2/123

    摘要： A vibration actuator difficult to be affected by an external force. A vibration element is held by a shaft. A driven element is held in pressure contact with an elastic body, and a bearing member is joined to the driven element in a manner rotatable about the shaft as a rotational axis. Vibrations excited in the vibration element cause the vibration element and the driven element to rotate relative to each other about the shaft. In the driven element, a connecting portion connects between a main body and a gear provided outside the main body. The degree of freedom of the main body with respect to the bearing member is restricted in other directions than a direction of rotation thereof and a thrust direction of the shaft. The connecting portion has a lower flexural rigidity in a direction parallel to the rotational axis than the main body and the gear.

    Vibration actuator having improved torque
    5.
    发明授权
    Vibration actuator having improved torque 有权
    具有改善转矩的振动致动器

    公开(公告)号：US09577550B2

    公开(公告)日：2017-02-21

    申请号：US14021234

    申请日：2013-09-09

    申请人： NIKON CORPORATION

    发明人： Makoto Nakazumi ,  Masaaki Tanabe

    IPC分类号： H02N2/04 ,  H02N2/10 ,  G02B7/08 ,  H02N2/00 ,  H02N2/02 ,  H02N2/12 ,  H02N2/16 ,  G02B7/04

    CPC分类号： H02N2/105 ,  G02B7/04 ,  G02B7/08 ,  H02N2/0065 ,  H02N2/026 ,  H02N2/106 ,  H02N2/123 ,  H02N2/16 ,  H02N2/163

    摘要： Provided is a vibration actuator including: an electromechanical transduction member that transduces electric power to a mechanical vibration; a transmission member that transmits the vibration from the electromechanical transduction member as a driving force; and an abutting portion that abuts on the transmission member and moves relative to the transmission member in response to the driving force. One of the transmission member and the abutting portion includes pores in its surface contacting the abutting portion or the transmission member at an area occupancy of 2% or higher. In this vibration actuator, the average area of the pores may be 3 μm2 or larger. The other of the transmission member and the abutting portion may include iron in its surface contacting the one.

    摘要翻译： 提供一种振动致动器，包括：将机械振动的电力转换的机电转换构件; 将来自机电转换构件的振动作为驱动力传递的传递构件; 以及抵接部，其抵接在所述传递部件上，并响应于所述驱动力而相对于所述传递部件移动。 传递部件和抵接部分之一包括其表面接触抵接部分或传播部件的面积占2％以上的孔。 在该振动致动器中，孔的平均面积可以为3μm2以上。 传递构件和邻接部分中的另一个可以包括与其接触的表面的铁。

    Controlling device for vibration type actuator
    7.
    发明授权
    Controlling device for vibration type actuator 有权
    振动式执行器控制装置

    公开(公告)号：US09496481B2

    公开(公告)日：2016-11-15

    申请号：US13992351

    申请日：2011-11-18

    申请人： Kenichi Kataoka

    发明人： Kenichi Kataoka

    IPC分类号： H01L41/09 ,  H02N2/14 ,  H02N2/10

    CPC分类号： H01L41/09 ,  H02N2/106 ,  H02N2/142

    摘要： A controlling device for a vibration type actuator includes an AC voltage generating unit in which at least one of parameters, namely a frequency, an amplitude, and a phase of an AC voltage for use in applying an excitation force to a vibrating member, is settable; a measuring unit which measures some physical quantities caused by a vibration of the vibrating member; a variation imparting unit which imparts a predetermined variation to at least one of the parameters of the AC voltage; a frequency-response characteristic measuring unit which finds a frequency-response characteristic of at least one predetermined frequency between a first signal according to the variation and a second signal according to the measured physical quantity; and a frequency controlling unit which controls the frequency of the AC voltage according to the frequency-response characteristic.

    摘要翻译： 用于振动型致动器的控制装置包括AC电压产生单元，其中可以将可用于向振动构件施加激励力的AC电压的频率，振幅和相位中的至少一个参数设置 ; 测量单元，其测量由所述振动构件的振动引起的一些物理量; 变化赋予单元，其向所述AC电压的参数中的至少一个赋予预定的变化量; 频率响应特性测量单元，根据所测量的物理量，根据变化找到第一信号和第二信号之间的至少一个预定频率的频率响应特性; 以及频率控制单元，其根据频率响应特性来控制AC电压的频率。

    Vibration-type driving device
    9.
    发明授权
    Vibration-type driving device 有权
    振动式驱动装置

    公开(公告)号：US09401667B2

    公开(公告)日：2016-07-26

    申请号：US14193891

    申请日：2014-02-28

    申请人： CANON KABUSHIKI KAISHA

    发明人： Akira Shimada

    IPC分类号： H02N2/00 ,  H01L41/09 ,  H02N2/02 ,  H02N2/10

    CPC分类号： H02N2/0095 ,  H02N2/02 ,  H02N2/106

    摘要： A vibration-type driving device includes a vibrator including an electro-mechanical transducer and an elastic portion supported by a shaft, and a rotor the position of which relative to the vibrator changes. The rotor includes a first rotor having a threaded portion engaging with a first threaded portion formed on the elastic portion, and a second rotor having a threaded portion engaging with a second threaded portion formed on the shaft. The first rotor and the second rotor are configured to be driven integrally with each other, with a spring member between the first rotor and the second rotor.

    摘要翻译： 振动型驱动装置包括振动器，其包括机电换能器和由轴支撑的弹性部分，以及相对于振动器的位置改变的转子。 转子包括具有与形成在弹性部分上的第一螺纹部分接合的螺纹部分的第一转子和具有与形成在轴上的第二螺纹部分接合的螺纹部分的第二转子。 第一转子和第二转子被构造成彼此一体地驱动，弹簧构件在第一转子和第二转子之间。