公开(公告)号：US20080150393A1

公开(公告)日：2008-06-26

申请号：US11954882

申请日：2007-12-12

申请人： Tomoki FUNAKUBO

发明人： Tomoki FUNAKUBO

IPC分类号： H02N2/08 ,  H01L41/083

CPC分类号： H01L41/0913 ,  H02N2/004 ,  H02N2/008 ,  H02N2/103 ,  H02N2/142

摘要： An ultrasonic motor that is capable of stable driving by preventing uneven rotation of a driven body and maintaining the drive efficiency is provided. The ultrasonic motor includes a plurality of ultrasonic transducers including alternately stacked first piezoelectric elements and second piezoelectric elements, and a control unit for applying the same two-phase driving AC voltages to the plurality of ultrasonic transducers. The ultrasonic motor simultaneously generates longitudinal vibration and flexural vibration at the ultrasonic transducers to generate substantially elliptic vibration at output ends of the ultrasonic transducers and relatively moves the ultrasonic transducers and a driven body in contact with the ultrasonic transducers. The control unit includes a vibration detection circuit that detects the vibrations of the ultrasonic transducers and outputs an average-vibration detection signal, a phase comparator circuit that detects a phase difference between one of the two-phase driving AC voltages applied to the ultrasonic transducers and the average-vibration detection signal, and a frequency control circuit that controls the frequency of the driving AC voltages such that the phase difference detected by the phase comparing part is a predetermined value.

摘要翻译： 提供能够通过防止被驱动体的不均匀旋转并保持驱动效率而能够稳定地驱动的超声波马达。 超声波马达包括多个包括交替堆叠的第一压电元件和第二压电元件的超声波换能器，以及用于将相同的两相驱动AC电压施加到多个超声换能器的控制单元。 超声波马达同时在超声波换能器处产生纵向振动和弯曲振动，以在超声波换能器的输出端处产生基本椭圆振动，并相对移动超声波换能器和与超声换能器接触的被驱动体。 控制单元包括：振动检测电路，其检测超声波换能器的振动并输出平均振动检测信号;相位比较器电路，其检测施加于超声波换能器的两相驱动AC电压中的一个相位差;以及相位比较器电路， 平均振动检测信号，以及频率控制电路，其控制驱动AC电压的频率，使得由相位比较部检测的相位差为预定值。

公开(公告)号：US20050258711A1

公开(公告)日：2005-11-24

申请号：US11124715

申请日：2005-05-09

申请人： Tomoki Funakubo

发明人： Tomoki Funakubo

IPC分类号： B06B1/06 ,  H01L41/083 ,  H01L41/09 ,  H02N2/00

CPC分类号： H01L41/0913 ,  H01L41/083 ,  H02N2/0055 ,  H02N2/026

摘要： An ultrasonic vibrator includes a piezoelectric laminated-section; a frictional contact-section serving as a driving point upon coming into contact with a moving-table serving as a driven body; and a pin serving as a projection and disposed at a node of a generated vibration. When alternating voltages are applied on external electrodes of the piezoelectric laminated-section, an ultrasonic elliptical vibration is generated at the frictional contact-section. The pin is composed of a resin member such as polyether-ether-ketone.

摘要翻译： 超声波振子包括：压电层叠部; 与用作被驱动体的移动台接触的用作驱动点的摩擦接触部分; 以及用作突起并设置在产生的振动的节点处的销。 当在压电层叠部分的外部电极上施加交流电压时，在摩擦接触部分产生超声波椭圆振动。 针由聚醚醚酮等树脂构成。

公开(公告)号：US20090256446A1

公开(公告)日：2009-10-15

申请号：US12419519

申请日：2009-04-07

申请人： Tomoki Funakubo

发明人： Tomoki Funakubo

IPC分类号： H02N2/12

CPC分类号： H02N2/106 ,  H01L41/0471 ,  H01L41/0472 ,  H01L41/0825 ,  H01L41/083 ,  H02N2/0045

摘要： An ultrasonic motor, which rotates a rotor by elastic movement generated by simultaneously exciting vertical oscillation and twisted oscillation in an ultrasonic oscillator, by using expanding and contracting oscillations of a multilayer piezoelectric element formed by laminating two kinds of piezoelectric sheet, is configured as follows. Namely, the multilayer piezoelectric element is formed by alternately laminating a first piezoelectric sheet and a second piezoelectric sheet. The first piezoelectric sheet is provided with a first internal electrode, which is divided into two or more parts, and each divided part is exposed to a peripheral edge of the piezoelectric sheet. The second piezoelectric sheet is provided with an internal electrode, which has a polarity reverse to the first internal electrode, and is divided into two or more parts, and each divided part is exposed to a peripheral edge of the piezoelectric sheet.

摘要翻译： 通过利用通过层叠两种压电片形成的层叠型压电元件的扩展和收缩振荡，通过在超声波振荡器中同时激发垂直振荡和扭曲振荡而产生的弹性运动使转子旋转的超声波马达被配置如下。 也就是说，通过交替层叠第一压电片和第二压电片形成层叠型压电元件。 第一压电片设置有被分成两部分或更多部分的第一内部电极，并且每个分割部分暴露于压电片的周缘。 第二压电片设置有与第一内部电极相反的极性的内部电极，并且被分成两部分以上，并且每个分割部分暴露于压电片的周缘。

公开(公告)号：US20080036333A1

公开(公告)日：2008-02-14

申请号：US11890121

申请日：2007-08-03

申请人： Tomoki Funakubo ,  Nagahide Sakai ,  Junji Okada

发明人： Tomoki Funakubo ,  Nagahide Sakai ,  Junji Okada

IPC分类号： H02N2/00

CPC分类号： H02N2/026 ,  H01L41/0471 ,  H01L41/083 ,  H01L41/0913 ,  H02N2/004 ,  H02N2/06

摘要： When a piezoelectric ceramic sheet is divided into two equal parts in a longitudinal direction and two equal parts in a width direction to form four regions, internal electrodes are disposed over each region and are disposed so that surface areas occupied in each region are substantially the same, and a longitudinal vibration is detected based on a potential difference between the internal electrodes.

摘要翻译： 当将压电陶瓷片在长度方向上分成两等份并在宽度方向上分成两等份形成四个区时，在每个区域上设置内部电极，并且设置成每个区域中占有的表面积基本相同 并且基于内部电极之间的电位差来检测纵向振动。

公开(公告)号：US07053525B2

公开(公告)日：2006-05-30

申请号：US10403129

申请日：2003-03-31

申请人： Tomoki Funakubo ,  Yasuo Sasaki ,  Kiyoshi Tosaka ,  Heiji Ogino ,  Takashi Kawashima ,  Toshihiro Nakao

发明人： Tomoki Funakubo ,  Yasuo Sasaki ,  Kiyoshi Tosaka ,  Heiji Ogino ,  Takashi Kawashima ,  Toshihiro Nakao

IPC分类号： H01L41/04

CPC分类号： H02N2/026 ,  H01L41/083 ,  H01L41/0913

摘要： An ultrasonic linear motor according to the present invention has a configuration wherein driving elements are glued at portions on faces of an ultrasonic transducer, facing one another, where rotational directions of elliptic vibrations generated on the faces are reverse one to another, a pair of guides are provided for being pressed into against the driving elements so as to hold the ultrasonic transducer therebetween, and leaf springs serving as pressing part are provided so as to narrow a spacing between the one pair of guides, whereby the ultrasonic transducer is configured as an self-moving ultrasonic linear motor which can drive by itself. Thus, driving properties of the ultrasonic transducer itself is improved, and also the size of the ultrasonic linear motor can be reduced.

公开(公告)号：US20060061235A1

公开(公告)日：2006-03-23

申请号：US11222600

申请日：2005-09-09

申请人： Tomoki Funakubo

发明人： Tomoki Funakubo

IPC分类号： H02N2/00

CPC分类号： H02N2/0055 ,  H01L41/083 ,  H01L41/0913 ,  H02N2/004 ,  H02N2/026 ,  H02N2/103

摘要： An ultrasonic motor capable of simultaneously generating a plurality of vibration modes efficiently generates each vibration mode so as to stably obtain high motor power. The ultrasonic motor an ultrasonic vibrator and a pressing unit. The ultrasonic vibrator includes an electromechanical converting element that generates a substantially elliptic vibration at an output end of the ultrasonic vibrator by simultaneously generating two different vibration modes by applying a first alternating-current voltage of a first phase and a second alternating-current voltage of a second phase to the electromechanical converting elements, wherein the first and second alternating-current voltages have a predetermined phase difference and predetermined driving frequencies. The pressing unit is configured to press the output end of the ultrasonic vibrator against a driven body. The output end of the ultrasonic vibrator is pressed against the driven body by a pressing force that causes mechanical resonant frequencies in the two different vibration modes to substantially match each other.

摘要翻译： 能够同时产生多个振动模式的超声波马达有效地产生每个振动模式，从而稳定地获得高的马达功率。 超声波电动机是超声波振子和按压单元。 超声波振子包括机电转换元件，该机电转换元件通过同时产生两种不同的振动模式，通过施加第一相和第二交流电压的第一交流电压，在超声波振动器的输出端产生大致椭圆振动 第二相到机电转换元件，其中第一和第二交流电压具有预定的相位差和预定的驱动频率。 按压单元构造成将超声波振动器的输出端压靠在被驱动体上。 超声波振动器的输出端通过使两种不同振动模式中的机械共振频率彼此基本匹配的按压力而被压靠在被驱动体上。

公开(公告)号：US20050067922A1

公开(公告)日：2005-03-31

申请号：US10949661

申请日：2004-09-23

申请人： Yasuo Sasaki ,  Kiyoshi Tosaka ,  Toshihiro Nakao ,  Kazutoshi Shiratori ,  Tomoki Funakubo

发明人： Yasuo Sasaki ,  Kiyoshi Tosaka ,  Toshihiro Nakao ,  Kazutoshi Shiratori ,  Tomoki Funakubo

IPC分类号： G02B7/04 ,  G02B7/10 ,  G02B15/14 ,  H01L41/09 ,  H02N2/00 ,  H01L41/08

CPC分类号： H02N2/026 ,  G02B7/102 ,  G02B15/14 ,  H02N2/004 ,  H02N2/04

摘要： A vibrator of a vibration wave linear motor comprises two and one driving contacting parts respectively on top and bottom surfaces. A first guide member contacts the two driving contacting parts on the top surface, and both ends of a second guide member are pressed upward by spiral springs, and pressing forces are applied respectively between the driving contacting parts and the first and the second guide members. The three driving contacting parts convert elliptical vibrations, which are generated by applying a voltage to a vibrator unit, into driving force, whereby the vibrator self-runs in a direction indicated by a bidirectional arrow d with reference to the first and the second guide members. the self-running of the vibrator is conveyed, via a pin member and an engaging protruding part, to the lens frame, which then slides.

摘要翻译： 振动波形线性电动机的振动器分别在顶表面和底表面上分别包括两个和一个驱动接触部分。 第一引导构件与上表面上的两个驱动接触部分接触，并且第二引导构件的两端由螺旋弹簧向上按压，并且分别在驱动接触部分和第一和第二引导构件之间施加按压力。 三个驱动接触部分将通过向振动器单元施加电压而产生的椭圆振动转换为驱动力，由此振动器以相对于第一和第二引导构件的双向箭头d所示的方向自行运行 。 振动器的自运动经由销构件和接合突出部分被传送到透镜框架，然后该透镜框架滑动。

公开(公告)号：US20050062367A1

公开(公告)日：2005-03-24

申请号：US10941732

申请日：2004-09-15

申请人： Tomoki Funakubo ,  Heiji Ogino

发明人： Tomoki Funakubo ,  Heiji Ogino

IPC分类号： B06B1/06 ,  H01L41/083 ,  H01L41/09 ,  H01L41/187 ,  H01L41/22 ,  H01L41/27 ,  H01L41/339 ,  H02N2/00

CPC分类号： H01L41/0913 ,  H01L41/083 ,  H02N2/026

摘要： In an ultrasonic vibrator in which ultrasonic elliptical vibration is caused at a friction-projection by the simultaneous generation of a first vibration mode and a second vibration mode in a piezoelectric element, the friction-projection is formed by burning so as to be integrated with the piezoelectric element.

摘要翻译： 在通过在压电元件中同时产生第一振动模式和第二振动模式而在摩擦突起处产生超声波椭圆振动的超声波振动器中，通过燃烧形成摩擦突起，以便与 压电元件

公开(公告)号：US5619292A

公开(公告)日：1997-04-08

申请号：US445879

申请日：1995-05-22

申请人： Minoru Matsuzaki ,  Yuta Sato ,  Sumio Kawai ,  Hiroyuki Takizawa ,  Masaharu Hamada ,  Tomoki Funakubo

发明人： Minoru Matsuzaki ,  Yuta Sato ,  Sumio Kawai ,  Hiroyuki Takizawa ,  Masaharu Hamada ,  Tomoki Funakubo

IPC分类号： G03B17/52 ,  G03B17/50

CPC分类号： G03B17/52

摘要： A camera using films each having a development processing solution in a solution accommodating bag includes rollers feeding photographed film outside of the camera or into an accommodating chamber, a piezoelectric press member held between an electrode and an elastic member also serving as an electrode presses photographed film and spreads development processing solution in the solution bag over an entire exposing portion. A piezoelectric member vibrated by AC voltages applied to the electrode and elastic member reduces a frictional force of the film caused by the press member. The processing solution is heated by vibrating the press member to generate heat. A camera using films each having a development processing solution accommodated in a solution bag includes a follower roller disposed on the upper side of the film, an ultrasonic motor composed of a vibrator on the lower side of the film, a temperature sensor detecting temperature of the ultrasonic motor, a peripheral temperature measuring circuit for detecting a peripheral temperature and a control circuit controlling drive of the ultrasonic motor based on the results detected by the temperature sensor and the peripheral temperature measuring circuit. The ultrasonic motor also serves as a film feed unit for feeding photographed film outside of the camera or into an accommodating chamber, a press unit for pressing photographed film and spreading development processing solution in the solution bag over an entire exposing portion and a heating unit for heating development processing solution before spreading.

摘要翻译： 使用在溶液容纳袋中具有显影处理溶液的胶片的照相机包括将照相机外部的摄影胶片送入容纳室的辊子，保持在电极和还用作电极的弹性部件之间的压电元件压印照相胶片 并且在整个曝光部分上将显影处理溶液铺展在溶液袋中。 通过施加到电极和弹性构件的交流电压振动的压电构件减小了由冲压构件引起的薄膜的摩擦力。 通过使加压构件振动来加热处理溶液以产生热量。 使用具有容纳在溶液袋中的显影处理溶液的膜的照相机包括设置在胶片上侧的从动辊，由膜下侧的振动器组成的超声波电动机，温度传感器检测温度 超声波电动机，用于检测周边温度的外围温度测量电路和控制电路，根据由温度传感器和外围温度测量电路检测的结果控制超声波电动机的驱动。 超声波马达还用作将照相机外部的摄影胶片送入容纳室的胶片馈送单元，用于压制照相胶片的压制单元，并在整个曝光部分上将展开处理液展开在溶液袋中，以及加热单元 加热开发处理解决方案。

公开(公告)号：US5523643A

公开(公告)日：1996-06-04

申请号：US480885

申请日：1995-06-07

申请人： Takanao Fujimura ,  Tomoki Funakubo ,  Yougo Imai ,  Toshiharu Tsubata ,  Yoshihisa Taniguchi ,  Takashi Ouchi ,  Hiroyuki Imabayashi ,  Yukihiko Sawada ,  Katsuhiro Wakabayashi

发明人： Takanao Fujimura ,  Tomoki Funakubo ,  Yougo Imai ,  Toshiharu Tsubata ,  Yoshihisa Taniguchi ,  Takashi Ouchi ,  Hiroyuki Imabayashi ,  Yukihiko Sawada ,  Katsuhiro Wakabayashi

IPC分类号： H02N2/00 ,  H01L41/09 ,  H01L41/08

CPC分类号： H01L41/0906

摘要： An ultrasonic piezoelectric transducer and an ultrasonic actuator for performing enhanced elliptical vibration comprise a first laminated piezoelectric element having a first fixed end, a resonator mounted to the opposite end of the first laminated piezoelectric element, a second laminated piezoelectric element having one end thereof fixedly mounted to the resonator in a direction other than a vibrating direction of the first laminated piezoelectric element, and a load mass fixedly mounted to the opposite end of the second laminated piezoelectric element. This structure permits the enhanced elliptical vibration of the transducer to have a large, controllable amplitude.

摘要翻译： 用于进行增强的椭圆振动的超声波压电换能器和超声波致动器包括具有第一固定端的第一层压压电元件，安装在第一层叠压电元件的相对端的谐振器，其一端固定地安装在第二层叠压电元件 在与第一层压型压电元件的振动方向以外的方向上的谐振器，以及固定地安装在第二层压型压电元件的另一端的负载质量。 这种结构允许增强的换能器的椭圆振动具有大的可控振幅。