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公开(公告)号：US20070096601A1
公开(公告)日：2007-05-03
申请号：US11589475
申请日：2006-10-30
IPC分类号： H02N2/00
摘要： A drive unit of the present invention includes a piezoelectric element, a drive friction member fixed to one end of the piezoelectric element, and a movable member frictionally fitted to the drive friction member. By making the piezoelectric element expanded and contracted, the movable member is moved relative to the drive friction member. The leaf spring for pressing the movable member against the drive friction member is provided integrally with the movable member.
摘要翻译： 本发明的驱动单元包括压电元件，固定在压电元件的一端的驱动摩擦构件，以及与摩擦构件摩擦配合的可动构件。 通过使压电元件膨胀和收缩，可动件相对于驱动摩擦件运动。 用于将可动构件压靠在驱动摩擦构件上的板簧与可动构件一体地设置。
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公开(公告)号：US07315164B2
公开(公告)日：2008-01-01
申请号：US11342408
申请日：2006-01-30
申请人： Yoshiaki Hata , Kazumi Sugitani , Ryuichi Yoshida , Shuichi Fujii , Hideaki Nakanishi , Takayuki Hoshino , Hirohisa Sueyoshi
发明人： Yoshiaki Hata , Kazumi Sugitani , Ryuichi Yoshida , Shuichi Fujii , Hideaki Nakanishi , Takayuki Hoshino , Hirohisa Sueyoshi
IPC分类号： G01B7/14
摘要： A drive unit in accordance with the present invention is provided with a magnetic field generating member generating a magnetic field, a magnetic field detecting device constituted by first, second and third magnetic field detecting elements detecting the magnetic field, and a piezoelectric actuator moving the magnetic field generating member. When executing a relative positioning between the magnetic field generating member and the magnetic field detecting device on the basis of a detection result by the magnetic field detecting device, a first positioning is executed on the basis of the detection result of the first and second magnetic field detecting elements in a predetermined region, and a second positioning is executed on the basis of the detection result of the third magnetic field detecting element at a predetermined point apart from the predetermined region, within a movable range in which the magnetic field generating member moves. In accordance with the structure, it is possible to position the movable body at a high precision, even in the case that a plurality of position detecting points of the movable body of the drive unit exist at a wide interval.
摘要翻译： 根据本发明的驱动单元设置有产生磁场的磁场产生构件，由检测磁场的第一，第二和第三磁场检测元件构成的磁场检测装置，以及将磁性元件移动的压电致动器 场产生部件。 基于磁场检测装置的检测结果，在磁场产生部件和磁场检测装置之间进行相对定位时，基于第一和第二磁场的检测结果执行第一定位 在预定区域内检测元件，并且在磁场产生构件移动的可移动范围内，基于第三磁场检测元件在与预定区域相隔的预定点处的检测结果来执行第二定位。 根据该结构，即使在驱动单元的可动体的多个位置检测点以大的间隔存在的情况下，也可以高精度地定位移动体。
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公开(公告)号：US08026688B2
公开(公告)日：2011-09-27
申请号：US12296321
申请日：2007-04-10
IPC分类号： H02N2/02
摘要： In order to provide a driving device that is capable of eliminating sticking of a movable member due to nonuse, the driving device includes a drive shaft that reciprocates in axial directions with expansion and contraction of an electromechanical transducer element, a movable member that frictionally engages with the drive shaft, and a drive circuit that inputs drive voltage into the electromechanical transducer element, the drive circuit outputting drive operation pattern voltage having a frequency (fd1′) lower than a resonance frequency (fr) of the electromechanical transducer element and lower than a frequency (fd1) that maximizes moving velocity of the movable member and sticking elimination pattern voltage having a frequency lower than the frequency (fd1′) of the drive operation pattern voltage and in vicinity of a frequency (fd2) that maximizes thrust acting on the movable member.
摘要翻译： 为了提供一种驱动装置，其能够消除由于不使用而引起的可动部件的粘着，驱动装置包括：驱动轴，该驱动轴在机电换能器元件的膨胀和收缩下沿轴向往复运动，可动部件与 驱动轴和驱动电路，其将驱动电压输入到机电换能器元件中，所述驱动电路输出具有低于机电换能器元件的谐振频率（fr）的频率（fd1'）的驱动操作模式电压，并且低于 频率（fd1），其使可动构件的移动速度最大化，并且具有低于驱动操作模式电压的频率（fd1'）的频率的附着消除图案电压，并且使得作用在可动件上的推力最大化的频率（fd2）附近 会员。
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公开(公告)号：US20090160372A1
公开(公告)日：2009-06-25
申请号：US12296321
申请日：2007-04-10
IPC分类号： H02K41/035
摘要： In order to provide a driving device that is capable of eliminating sticking of a movable member due to nonuse, the driving device includes a drive shaft that reciprocates in axial directions with expansion and contraction of an electromechanical transducer element, a movable member that frictionally engages with the drive shaft, and a drive circuit that inputs drive voltage into the electromechanical transducer element, the drive circuit outputting drive operation pattern voltage having a frequency (fd1′) lower than a resonance frequency (fr) of the electromechanical transducer element and lower than a frequency (fd1) that maximizes moving velocity of the movable member and sticking elimination pattern voltage having a frequency lower than the frequency (fd1′) of the drive operation pattern voltage and in vicinity of a frequency (fd2) that maximizes thrust acting on the movable member.
摘要翻译： 为了提供一种驱动装置，其能够消除由于不使用而引起的可动部件的粘着，驱动装置包括：驱动轴，该驱动轴在机电换能器元件的膨胀和收缩下沿轴向往复运动，可动部件与 驱动轴和驱动电路，其将驱动电压输入到机电换能器元件中，所述驱动电路输出具有低于机电换能器元件的谐振频率（fr）的频率（fd1'）的驱动操作模式电压，并且低于 频率（fd1），其使可动构件的移动速度最大化，并且具有低于驱动操作模式电压的频率（fd1'）的频率的附着消除图案电压，并且使得作用在可动件上的推力最大化的频率（fd2）附近 会员。
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公开(公告)号：US20060170418A1
公开(公告)日：2006-08-03
申请号：US11342408
申请日：2006-01-30
申请人： Yoshiaki Hata , Kazumi Sugitani , Ryuichi Yoshida , Shuichi Fujii , Hideaki Nakanishi , Takayuki Hoshino , Hirohisa Sueyoshi
发明人： Yoshiaki Hata , Kazumi Sugitani , Ryuichi Yoshida , Shuichi Fujii , Hideaki Nakanishi , Takayuki Hoshino , Hirohisa Sueyoshi
IPC分类号： G01B7/14
摘要： A drive unit in accordance with the present invention is provided with a magnetic field generating member generating a magnetic field, a magnetic field detecting device constituted by first, second and third magnetic field detecting elements detecting the magnetic field, and a piezoelectric actuator moving the magnetic field generating member. When executing a relative positioning between the magnetic field generating member and the magnetic field detecting device on the basis of a detection result by the magnetic field detecting device, a first positioning is executed on the basis of the detection result of the first and second magnetic field detecting elements in a predetermined region, and a second positioning is executed on the basis of the detection result of the third magnetic field detecting element at a predetermined point apart from the predetermined region, within a movable range in which the magnetic field generating member moves. In accordance with the structure, it is possible to position the movable body at a high precision, even in the case that a plurality of position detecting points of the movable body of the drive unit exist at a wide interval.
摘要翻译： 根据本发明的驱动单元设置有产生磁场的磁场产生构件，由检测磁场的第一，第二和第三磁场检测元件构成的磁场检测装置，以及将磁性元件移动的压电致动器 场产生部件。 基于磁场检测装置的检测结果，在磁场产生部件和磁场检测装置之间进行相对定位时，基于第一和第二磁场的检测结果执行第一定位 在预定区域内检测元件，并且在磁场产生构件移动的可移动范围内，基于第三磁场检测元件在与预定区域相隔的预定点处的检测结果来执行第二定位。 根据该结构，即使在驱动单元的可动体的多个位置检测点以大的间隔存在的情况下，也可以高精度地定位移动体。
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公开(公告)号：US07737610B2
公开(公告)日：2010-06-15
申请号：US12224744
申请日：2007-02-13
IPC分类号： H01L41/08
CPC分类号： H02N2/025 , H01L41/042
摘要： Provided is a self-propelled drive apparatus that enables stable drive and low cost, the apparatus includes: a movable member which has an electromechanical transducer whose one end is fixed to the movable member and the other end is fixed to a drive friction member, which is movably supported by the movable member movably in the first direction, which represents a extension-contraction direction A-B of the electromechanical transducer, where the movable member is supported movably in the first direction; a pair of plate springs which extend in a belt shape in the first direction and sandwich the drive friction member; a base member holding the plate springs in a cantilever manner in the direction of the short sides of the plate springs; and auxiliary springs disposed on the outside of the plate springs to apply elastic force only to both ends of each of the plate springs.
摘要翻译： 本发明提供一种能够稳定驱动并且成本低廉的自推进驱动装置，该装置包括：具有机电换能器的可动构件，其一端固定在可动构件上，另一端固定在驱动摩擦构件上， 可移动构件沿第一方向可移动地支撑，该第一方向表示机电换能器的伸缩方向AB，其中可移动构件沿第一方向可移动地被支撑; 一对板簧，沿着第一方向延伸成带状并夹着驱动摩擦构件; 保持板簧在板簧的短边方向上以悬臂方式固定的基件; 以及设置在板簧的外侧的辅助弹簧，以仅对每个板簧的两端施加弹力。
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公开(公告)号：US20090026886A1
公开(公告)日：2009-01-29
申请号：US12224744
申请日：2007-02-13
IPC分类号： H02N2/00
CPC分类号： H02N2/025 , H01L41/042
摘要： Provided is a self-propelled drive apparatus that enables stable drive and low cost, the apparatus includes: a movable member which has an electromechanical transducer whose one end is fixed to the movable member and the other end is fixed to a drive friction member, which is movably supported by the movable member movably in the first direction, which represents a extension-contraction direction A-B of the electromechanical transducer, where the movable member is supported movably in the first direction; a pair of plate springs which extend in a belt shape in the first direction and sandwich the drive friction member; a base member holding the plate springs in a cantilever manner in the direction of the short sides of the plate springs; and auxiliary springs disposed on the outside of the plate springs to apply elastic force only to both ends of each of the plate springs.
摘要翻译： 本发明提供一种能够稳定驱动并且成本低廉的自推进驱动装置，该装置包括：具有机电换能器的可动构件，其一端固定在可动构件上，另一端固定在驱动摩擦构件上， 可移动构件沿第一方向可移动地支撑，该第一方向表示机电换能器的伸缩方向AB，其中可移动构件沿第一方向可移动地被支撑; 一对板簧，沿着第一方向延伸成带状并夹着驱动摩擦构件; 保持板簧在板簧的短边方向上以悬臂方式固定的基件; 以及设置在板簧的外侧的辅助弹簧，以仅对每个板簧的两端施加弹力。
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