公开(公告)号：US20100213792A1

公开(公告)日：2010-08-26

申请号：US12772324

申请日：2010-05-03

申请人： Nagahide SAKAI ,  Yasuaki KASAI ,  Junji OKADA ,  Katsuji HORIUCHI

发明人： Nagahide SAKAI ,  Yasuaki KASAI ,  Junji OKADA ,  Katsuji HORIUCHI

IPC分类号： H02N2/04 ,  H01L41/083

CPC分类号： H01L41/083 ,  H01L41/0471 ,  H01L41/0475 ,  H01L41/0913 ,  H02N2/004 ,  H02N2/026

摘要： A multilayered piezoelectric element in which first internal electrodes include first exposed portions formed at the end portion of a first piezoelectric material. And the second internal electrodes include second exposed portions formed at the end portion of a second piezoelectric material.

摘要翻译： 一种多层压电元件，其中第一内部电极包括形成在第一压电材料的端部处的第一暴露部分。 并且第二内部电极包括形成在第二压电材料的端部处的第二暴露部分。

公开(公告)号：US20120013221A1

公开(公告)日：2012-01-19

申请号：US13180731

申请日：2011-07-12

申请人： Yasuaki KASAI

发明人： Yasuaki KASAI

IPC分类号： H02N2/12

CPC分类号： H02N2/103 ,  H02N2/004

摘要： According to one embodiment, an ultrasonic motor unit includes a piezoelectric element, a holder member, a pressing member, a pressing auxiliary member, a driven member, an ultrasonic motor accommodation member, a power extraction member. The piezoelectric element has a rectangular cross-sectional shape. The holder member holds the piezoelectric element so as to cover an outer surface of a portion of the piezoelectric element. The pressing member applies a predetermined pressing force to the piezoelectric element. The pressing auxiliary member transfers a pressing force generated by the pressing member to the holder member. The driven member is in contact with one end face of the piezoelectric element. The power extraction member is coupled to the ultrasonic motor accommodation member to form a joint portion. The ultrasonic motor unit is formed by connecting a plurality of sections each formed by coupling the ultrasonic motor accommodation member to the power extraction member.

摘要翻译： 根据一个实施例，超声波马达单元包括压电元件，保持器构件，按压构件，按压辅助构件，从动构件，超声波马达容纳构件，动力提取构件。 压电元件具有矩形横截面形状。 保持器构件保持压电元件以覆盖压电元件的一部分的外表面。 按压构件对压电元件施加预定的按压力。 按压辅助构件将由按压构件产生的按压力传递到保持构件。 从动构件与压电元件的一个端面接触。 功率提取构件联接到超声波马达容纳构件以形成接合部分。 超声波马达单元通过将通过将超声波马达容纳构件联接形成的多个部分连接到功率提取部件而形成。

公开(公告)号：US20090140608A1

公开(公告)日：2009-06-04

申请号：US12272159

申请日：2008-11-17

申请人： Yasuaki KASAI

发明人： Yasuaki KASAI

IPC分类号： H02N2/04

CPC分类号： H02N2/004 ,  G02B7/08 ,  H02N2/0055 ,  H02N2/026

摘要： A ultrasonic motor includes a piezoelectric device, and friction contact members moves a driven body by a elliptical vibration. And the ultrasonic motor includes a holder member which is disposed corresponding to a node of a longitudinal vibration or in the vicinity thereof on the face of the piezoelectric device and a node of a flexural vibration or in the vicinity thereof, the holder member having an engagement convex portion and being provided with a pair of sliding contact projection portions, a position limiting member which has accommodation holes each constituted of a sliding contact concave portion for accommodating the sliding contact projection portion such that it makes a sliding contact therewith freely and an engagement concave portion for accommodating the engagement convex portion, and a pressure member which presses the holder member so as to bring the friction contact members into pressure contact with the driven body.

摘要翻译： 超声波马达包括压电装置，摩擦接触构件通过椭圆振动使被驱动体移动。 并且超声波马达包括：与压电装置的表面上的纵向振动的节点或其附近相对应地设置的保持构件和弯曲节点或其附近，保持构件具有接合 凸部，并且设置有一对滑动接触突出部，位置限制构件，其具有容纳所述滑动接触突起部的滑动接触凹部，以使其与其自由滑动接触的接合凹部和接合凹部 用于容纳接合凸部的部分，以及压紧构件，其按压保持构件以使摩擦接触构件与被驱动体压力接触。

公开(公告)号：US20100187950A1

公开(公告)日：2010-07-29

申请号：US12692146

申请日：2010-01-22

申请人： Yasuaki KASAI ,  Nagahide SAKAI

发明人： Yasuaki KASAI ,  Nagahide SAKAI

IPC分类号： H02N2/02

CPC分类号： H02N2/103 ,  H01L41/0913 ,  H02N2/108

摘要： An ultrasonic motor drive apparatus comprises a piezoelectric element 107 having a plurality of piezoelectrically active regions, in which longitudinal vibration and flexural vibration are induced with application of alternate signals to the plurality of piezoelectrically active regions, a piezoelectric element holder 108 that is fixedly attached to the piezoelectric element, covering the neighborhood of a common node of the longitudinal vibration and the flexural vibration induced in the piezoelectric element all along the circumference of the central portion of the piezoelectric element with respect to the longitudinal direction, a vibrator holder 103 having a plurality of openings, a driven member 104 having a substantially spherical shape, an output shaft 106 attached to the driven member, through which power output of the driven member is transmitted, a pressing member 102 that brings the driven member 104 and the piezoelectric member into pressure contact with each other along the third direction, a cap 105 having an opening 105a, a link member 101 one end of which is connected with the pressing member 102 along the third direction and the other end of which can be connected with another apparatus, and a control section 600 that applies an alternate signal to the piezoelectric member.

摘要翻译： 超声波马达驱动装置包括具有多个压电有源区域的压电元件107，其中通过向多个压电有源区域施加交替信号而引起纵向振动和弯曲振动，压电元件保持器108固定地附接到 所述压电元件围绕所述纵向振动的共同节点的附近以及所述压电元件全部沿所述压电元件的中心部分的圆周相对于所述纵向方向感应的弯曲振动;振动器保持器103，其具有多个 具有大致球形的从动构件104，附接到从动构件的输出轴106，从动构件的动力输出通过该从动构件传递;将从动构件104和压电构件压力的按压构件102 沿着彼此接触 第三方向，具有开口105a的盖105，连接构件101，其一端沿着第三方向与按压构件102连接，另一端可与另一装置连接;以及控制部600，其 向压电元件施加交替信号。

公开(公告)号：US20110163633A1

公开(公告)日：2011-07-07

申请号：US12973454

申请日：2010-12-20

申请人： Yasuaki KASAI

发明人： Yasuaki KASAI

IPC分类号： H02N2/12

CPC分类号： H02N2/108 ,  H01L41/083 ,  H02N2/0065

摘要： An ultrasonic motor for driving a driven object with a multi-degree of freedom includes a vibrator configured to simultaneously excite two vibration modes to generate an elliptic vibration on an output surface thereof, a driven object configured to be driven by the elliptic vibration generated on the output surface, and a driving element interposed between the output surface and the driven object. The driven object includes a spherical portion to be brought into contact with at least the output surface via the driving element. The elliptic vibration exhibits different vibration amplitudes at different positions on the output surface. The output surface includes a plurality of regions which exhibit greater vibration amplitudes than other regions on the output surface. The driving element includes a contact portion with at least two regions exhibiting greater vibration amplitudes than other regions of the contact portion, and is provided on the output surface.

摘要翻译： 用于驱动多自由度的被驱动物体的超声波马达包括：振动器，其被配置为同时激励两个振动模式以在其输出表面上产生椭圆振动;被驱动物体，被配置为由在 输出表面和插入在输出表面和被驱动对象之间的驱动元件。 驱动对象包括经由驱动元件与至少输出表面接触的球形部分。 椭圆振动在输出表面的不同位置显示不同的振幅。 输出表面包括多个区域，其显示出比输出表面上的其它区域更大的振幅。 所述驱动元件包括具有至少两个区域的接触部分，所述至少两个区域具有比所述接触部分的其它区域更大的振幅，并且设置在所述输出表面上。