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公开(公告)号：US5710491A
公开(公告)日：1998-01-20
申请号：US476554
申请日：1995-06-07
申请人： Tadao Takagi , Ryoichi Suganuma , Daisuke Saya
发明人： Tadao Takagi , Ryoichi Suganuma , Daisuke Saya
摘要： A control device for a motor having a stator that generates traveling vibration waves in an elastic member by the excitation of a piezoelectric member, a rotor pressed to contact with the stator and driven by the traveling vibration waves, and a power supply circuit that generates at least one pair of input alternating voltages which are out of phase for exciting the piezoelectric member, and being driven by the vibration waves, comprises a judgment circuit for judging whether the rotor is in an abnormal operating condition, and an amplifying circuit for increasing the voltage magnitude of a pair of alternating voltages from the power supply circuit to a value greater than a predetermined value exceeding the rated voltage of the motor, in response to the fact that the judgment circuit judges that an abnormal operating condition of the motor is in effect.
摘要翻译： 一种电动机的控制装置，具有通过激励压电部件而产生弹性部件中的行进振动波的定子，受压与定子接触并由行进振动波驱动的转子，以及在该状态下产生的电源电路 至少一对异相输入交流电压，用于激励压电元件并被振动波驱动，包括用于判断转子是否处于异常工作状态的判断电路和用于增加电压的放大电路 响应于判断电路判定电动机的异常运行状况有效的事实，从电源电路到一个大于超过电动机额定电压的预定值的值的大小。
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公开(公告)号：US5446331A
公开(公告)日：1995-08-29
申请号：US339283
申请日：1994-11-07
摘要： An ultrasonic wave motor comprises a vibration member for generating a travelling vibration wave, a movable body to be driven by the vibration member, and a pressing mechanism having a spring member which abuts against at least one of the vibration member and the movable body and presses the vibration member and the movable body toward each other. The spring member is formed by a resilient plate member.
摘要翻译： 超声波马达包括用于产生行进振动波的振动部件，由振动部件驱动的移动体，以及具有与振动部件和移动体中的至少一个抵接的弹簧部件的按压机构， 振动部件和可动体朝向彼此。 弹簧构件由弹性板构件形成。
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公开(公告)号：US5336958A
公开(公告)日：1994-08-09
申请号：US137882
申请日：1993-10-19
申请人： Daisuke Saya , Ryoichi Suganuma
发明人： Daisuke Saya , Ryoichi Suganuma
CPC分类号： H02N2/14
摘要： An ultrasonic motor unit comprises a stator having a piezoelectric member and an elastic member which is excited by the piezoelectric member to generate a travelling vibration wave, and a rotor which is press-contacted to the stator and driven by the travelling vibration wave. At least two sets of input electrodes each having two input electrodes are circumferentially arranged on the piezoelectric member. A drive voltage is applied to only the selected ones of the input electrodes in accordance with a drive power requirement.
摘要翻译： 超声波马达单元包括具有压电构件的定子和由压电构件激励以产生行进振动波的弹性构件，以及与定子冲压接触并由行进振动波驱动的转子。 每个具有两个输入电极的至少两组输入电极在压电元件周向布置。 驱动电压仅根据驱动功率要求施加到所选择的输入电极。
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4.发明授权Apparatus and method for driving an ultrasonic motor to reduce rise response time 失效用于驱动超声波马达以减少上升响应时间的装置和方法公开(公告)号：US06437480B1
公开(公告)日：2002-08-20
申请号：US08916413
申请日：1997-08-22
申请人： Daisuke Saya
发明人： Daisuke Saya
IPC分类号： H02N200
摘要： An apparatus and method for driving an ultrasonic motor to reduce the rise response time. The ultrasonic motor is drivable at different frequencies and has a desired target speed, each frequency corresponding to a respective speed and a respective torque. The ultrasonic motor enters a specific mode after being started and driven. When the ultrasonic motor is started, a drive control unit drives the ultrasonic motor at a frequency corresponding to approximately a maximum torque. When the ultrasonic motor enters the specific mode, the drive control unit drives the ultrasonic motor at a frequency corresponding to approximately the target speed. Alternatively, the ultrasonic motor can be driven at different drive voltages, each drive voltage having corresponding frequencies, with each frequency of each drive voltage corresponding to a respective speed and a respective torque. The ultrasonic motor enters a specific mode after being started and driven. When the ultrasonic motor is started, the drive control unit selects a drive voltage, and drives the ultrasonic motor at the selected drive voltage and at a frequency of the selected drive voltage which corresponds to a maximum torque. When the ultrasonic motor enters the specific mode, the drive control unit selects a different drive voltage, and drives the ultrasonic motor at the selected, different drive voltage and at a frequency of the selected, different drive voltage which corresponds to approximately the target speed.
摘要翻译： 一种用于驱动超声波马达以减少上升响应时间的装置和方法。 超声波马达以不同的频率驱动并且具有期望的目标速度，每个频率对应于相应的速度和相应的扭矩。 超声波电机在启动和启动后进入特定模式。 当超声波马达启动时，驱动控制单元以与大致最大扭矩相对应的频率驱动超声波马达。 当超声波马达进入特定模式时，驱动控制单元以与目标速度近似的频率驱动超声波马达。 或者，可以以不同的驱动电压驱动超声波马达，每个驱动电压具有相应的频率，每个驱动电压的每个频率对应于相应的速度和相应的转矩。 超声波电机在启动和启动后进入特定模式。 当超声波马达启动时，驱动控制单元选择一个驱动电压，并以选定的驱动电压和对应于最大转矩的所选驱动电压的频率驱动超声波马达。 当超声波马达进入特定模式时，驱动控制单元选择不同的驱动电压，并以选定的不同的驱动电压驱动超声波马达并以与大致目标速度对应的所选择的不同驱动电压的频率驱动。
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公开(公告)号：US5912525A
公开(公告)日：1999-06-15
申请号：US821821
申请日：1997-03-21
申请人： Mina Kobayashi , Daisuke Saya
发明人： Mina Kobayashi , Daisuke Saya
摘要： A vibration actuator is provided having a vibration element having an elastic member that generates driving force and a relative moving member pressed in contact with the driving force members. The sliding member is composed of a polyethernitrile matrix resin and is interposed in the contact areas of the elastic member and the relative moving member.
摘要翻译： 提供一种具有振动元件的振动致动器，所述振动元件具有产生驱动力的弹性元件和与驱动力元件接触的压力的相对移动元件。 滑动构件由聚腈腈树脂构成，并且插入在弹性构件和相对移动构件的接触区域中。
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公开(公告)号：US5859490A
公开(公告)日：1999-01-12
申请号：US934594
申请日：1997-09-22
申请人： Daisuke Saya
发明人： Daisuke Saya
摘要： A vibration actuator for use with a relative moving element includes a plate shaped elastic member. An electro-mechanical conversion element is attached to an upper surface of the elastic member. The electro-mechanical conversion element generates longitudinal and bending vibrations in the elastic member such that a side surface of the elastic member constitutes a neutral surface of the vibrations. A driving force output member is disposed at a bottom surface of the elastic member, and contacts the relative moving element. An extension member is disposed at the side surface of the extension member. A pressing force is applied by the extension member to the driving force output member to press the driving force output member toward the relative moving element.
摘要翻译： 与相对运动元件一起使用的振动致动器包括板状弹性构件。 机电转换元件附接到弹性构件的上表面。 机电转换元件在弹性部件中产生纵向和弯曲的振动，使得弹性部件的侧表面构成振动的中立表面。 驱动力输出构件设置在弹性构件的底表面处，并与相对移动的元件接触。 延伸构件设置在延伸构件的侧表面处。 通过延伸构件对驱动力输出构件施加按压力，以将驱动力输出构件朝向相对移动元件推压。
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公开(公告)号：US5333029A
公开(公告)日：1994-07-26
申请号：US773726
申请日：1991-10-09
申请人： Shigeyuki Uchiyama , Tadao Takagi , Daisuke Saya , Yuji Katano , Shigemasa Sato , Toshimi Watanabe
发明人： Shigeyuki Uchiyama , Tadao Takagi , Daisuke Saya , Yuji Katano , Shigemasa Sato , Toshimi Watanabe
CPC分类号： G03B13/02 , G02B7/287 , G03B2213/025
摘要： A camera includes a photo-taking lens, an automatic focus adjusting device for effecting the automatic focus adjustment of the photo-taking lens, an eye-gaze detecting device for detecting the photographer's eye-gaze position in a finder field corresponding to a photographing picture plane, and producing an eye-gaze detection signal corresponding to the eye-gaze position, a focus adjustment signal producing device for outputting a plurality of focus adjustment signals corresponding to a plurality of detection areas in the photographing picture plane, and a control signal producing device for producing a control signal for controlling the automatic focus adjusting means, on the basis of the eye-gaze detection signal and the focus adjustment signals. The control signal producing device produces the control signal on the basis of the plurality of focus adjustment signals corresponding to the plurality of detection areas when the eye-gaze position indicated by the eye-gaze detection signal is at a position between the plurality of detection areas.
摘要翻译： 照相机包括摄影镜头，用于进行摄影镜头的自动聚焦调节的自动对焦调节装置，用于在与拍摄图像相对应的取景器场中检测摄影者的眼睛注视位置的眼睛注视检测装置 并产生与眼睛注视位置对应的眼睛注视检测信号;焦点调整信号产生装置，用于输出与拍摄图像平面中的多个检测区域相对应的多个焦点调节信号;以及产生控制信号的控制信号 基于眼睛凝视检测信号和聚焦调整信号产生用于控制自动聚焦调节装置的控制信号的装置。 当眼睛注视检测信号所示的眼睛注视位置处于多个检测区域之间的位置时，控制信号产生装置基于与多个检测区域对应的多个焦点调节信号来产生控制信号 。
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公开(公告)号：US5990597A
公开(公告)日：1999-11-23
申请号：US999698
申请日：1997-06-27
申请人： Tadao Takagi , Daisuke Saya
发明人： Tadao Takagi , Daisuke Saya
CPC分类号： H02N2/163 , H02N2/007 , H02N2/0085
摘要： An ultrasonic motor has a stator having a piezoelectric member vibrated by a drive signal, and an elastic member for generating traveling vibration wave in a drive surface thereof upon vibration of the piezoelectric member, a rotor which is urged against the drive surface of the elastic member and is driven by the generated traveling vibration wave, a support member integrally molded on the elastic member, and a fixing member for holding the support member. In the ultrasonic motor, one end face of the support member is formed at the same level as the drive surface or the junction surface of the elastic member, an electrode of the piezoelectric member is grounded through the support member, a plurality of holes are regularly formed in the circumferential direction of the support member, or the support member is fixed to the fixing member by an adhesive, thereby improving drive efficiency.
摘要翻译： 超声波马达具有具有通过驱动信号振动的压电构件的定子，以及用于在压电构件的振动时在其驱动表面中产生行进振动波的弹性构件，被推压在弹性构件的驱动表面上的转子 并且由所产生的行进振动波驱动，一体地模制在弹性构件上的支撑构件和用于保持支撑构件的固定构件。 在超声波马达中，支撑构件的一个端面形成在与弹性构件的驱动面或接合面相同的高度，压电构件的电极通过支撑构件接地，多个孔是规则的 在支撑构件的圆周方向上形成，或者通过粘合剂将支撑构件固定到固定构件，从而提高驱动效率。
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公开(公告)号：US5744897A
公开(公告)日：1998-04-28
申请号：US767320
申请日：1996-12-16
申请人： Tadao Takagi , Ryoichi Suganuma , Daisuke Saya
发明人： Tadao Takagi , Ryoichi Suganuma , Daisuke Saya
摘要： A control device for a motor having a stator that generates traveling vibration waves in an elastic member by the excitation of a piezoelectric member, a rotor pressed to contact with the stator and driven by the traveling vibration waves, and a power supply circuit that generates at least one pair of input alternating voltages which are out of phase for exciting the piezoelectric member, and being driven by the vibration waves, comprises a judgment circuit for judging whether the rotor is in an abnormal operating condition, and an amplifying circuit for increasing the voltage magnitude of a pair of alternating voltages from the power supply circuit to a value greater than a predetermined value exceeding the rated voltage of the motor, in response to the fact that the judgment circuit judges that an abnormal operating condition of the motor is in effect.
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10.发明授权Vibration motor having improved adhesive layer between electromechanical conversion element and elastic body 失效振动电机具有改善机电转换元件与弹性体之间的粘合层
公开(公告)号：US5654604A
公开(公告)日：1997-08-05
申请号：US614908
申请日：1996-03-13
CPC分类号： H02N2/163 , H02N2/003 , H02N2/026 , H01L41/313
摘要： An ultrasonic motor having an electromechanical element and an elastic body joined by an adhesive layer, wherein the adhesive layer is chosen for having either a specific thermal expansion coefficient, a specific shrinkage volume, a high Vickers hardness, a high longitudinal elastic modulus, or a high Vickers hardness and a high longitudinal elastic modulus. By proper selection of an adhesive for use in the adhesive layer, the motor drive efficiency, starting torque and power consumption can be improved by reducing the deformation of the elastic body and maintaining a larger contact area with a contact member or movable element. Proper selection of an adhesive also allows the motor's performance level to be maintained when the temperature changes.
摘要翻译： 具有机电元件和由粘合剂层连接的弹性体的超声波马达，其中粘合剂层被选择为具有特定的热膨胀系数，特定的收缩量，高的维氏硬度，高的纵向弹性模量或 维氏硬度高，纵向弹性模量高。 通过适当选择用于粘合剂层中的粘合剂，通过减小弹性体的变形并保持与接触构件或可移动元件的较大接触面积，可以提高电机驱动效率，启动扭矩和功率消耗。 适当选择粘合剂也可以在温度变化时保持电机的性能水平。
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