公开(公告)号：US20110241486A1

公开(公告)日：2011-10-06

申请号：US13065892

申请日：2011-03-31

申请人： Akihiro Iino ,  Yukio Akiyama ,  Satoshi Sakai ,  Takuo Oosaki ,  Masakazu Hirabayashi ,  Masatomo Moriko

发明人： Akihiro Iino ,  Yukio Akiyama ,  Satoshi Sakai ,  Takuo Oosaki ,  Masakazu Hirabayashi ,  Masatomo Moriko

IPC分类号： H02N2/12

CPC分类号： H02N2/12 ,  G04C3/12 ,  H02N2/166

摘要： An ultrasonic motor which exhibits stable performances by suppressing irregularities of magnitudes of two standing waves excited by a piezoelectric element is provided. The ultrasonic motor is provided with a piezoelectric element which includes: a plurality of divided electrodes which are mounted on one surface and are equidistantly arranged in the circumferential direction; an inner peripheral electrode which is arranged on an inner peripheral side of the divided electrodes; an outer peripheral electrode which is arranged on an outer peripheral side of the divided electrodes; a plurality of inner peripheral short-circuiting electrodes which are mounted on every other divided electrode out of the divided electrodes and on the inner peripheral electrode so as to make every other divided electrode short-circuited with the inner peripheral electrode in the radial direction of the piezoelectric element; a plurality of outer peripheral short-circuiting electrodes which are mounted on the divided electrodes which are not short-circuited with the inner peripheral electrodes out of the divided electrodes and on the outer peripheral electrode so as to make the divided electrodes which are not short-circuited with the inner peripheral electrode short-circuited with the outer peripheral electrode in the radial direction of the piezoelectric element.

摘要翻译： 提供了通过抑制由压电元件激发的两个驻波的大小的不规则性而表现出稳定的性能的超声波马达。 超声波马达设置有压电元件，该压电元件包括​​：多个分隔电极，其安装在一个表面上并沿圆周方向等距布置; 配置在分割电极的内周侧的内周电极; 外周电极，其设置在所述分割电极的外周侧; 多个内周短路电极，分别安装在分割电极之间的每隔一个分割电极和内周电极上，以使每隔一个分隔电极与内周电极沿径向方向短路 压电元件 多个外周短路电极，其安装在分割电极上，其与分隔电极之间的内周电极没有短路，并且在外周电极上，使得不短路的分割电极， 与外周电极在压电元件的径向方向上与外周电极短路的内周电极环绕。

公开(公告)号：US07215062B1

公开(公告)日：2007-05-08

申请号：US09369090

申请日：1999-08-05

申请人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki

发明人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki

IPC分类号： H01L41/08

CPC分类号： H01L41/0913 ,  H02N2/004 ,  H02N2/006 ,  H02N2/0085 ,  H02N2/103

摘要： An ultrasonic motor constructed so as to have improved driving force, reduced vibrational loss and smaller dimensions as compared with the conventional art. A piezoelectric vibrator generates a vibrational driving force in response to a received drive signal. A drive signal generator generates the drive signal. The drive signal is transmitted along leads to support members. The support members support, and are in electrical connection with, the piezoelectric vibrator on the substrate. Thus, the support member is effective for both supporting the piezoelectric member and for transmitting the drive signal from the drive signal generator to the piezoelectric vibrator. A moving member is in communication with the piezoelectric vibrator and moves in response to the vibrational driving force. The support member may be comprised of an elastic material so that it is effective for urging the piezoelectric vibrator against the moving member. This increases the frictional relationship between the moving member and the vibrational driving force, thereby increasing the output driving force. The support member may include a relatively thinner constriction portion and a relatively thicker connection portion, the constriction portion being effective for decreasing vibration losses. The support member may also be incorporated as part of the substrate, wherein the substrate includes a recess portion effective for receiving the piezoelectric vibrator to reduce thickness. To further reduce the overall dimensions of the inventive ultrasonic motor, the electrically conductive support member may be part of a drive circuit for generating the drive signal. Also, the support member may be configured for supporting the piezoelectric vibrator at a flex vibration node of the piezoelectric vibrator to reduce vibrational loss.

摘要翻译： 与常规技术相比，构造成具有改善的驱动力，减小的振动损失和更小的尺寸的超声波马达。 压电振动器响应于接收的驱动信号产生振动驱动力。 驱动信号发生器产生驱动信号。 驱动信号沿着引线传输到支撑构件。 支撑构件支撑并与衬底上的压电振动器电连接。 因此，支撑构件对于支撑压电构件和将驱动信号从驱动信号发生器传送到压电振动器都是有效的。 移动构件与压电振动器连通并且响应于振动驱动力移动。 支撑构件可以由弹性材料构成，使得压电振动器抵靠移动构件是有效的。 这增加了移动构件与振动驱动力之间的摩擦关系，从而增加了输出驱动力。 支撑构件可以包括相对较薄的收缩部分和相对较厚的连接部分，收缩部分对于减少振动损失是有效的。 支撑构件也可以作为衬底的一部分结合，其中衬底包括有效地接收压电振动器以减小厚度的凹部。 为了进一步减小本发明的超声波马达的整体尺寸，导电支撑构件可以是用于产生驱动信号的驱动电路的一部分。 此外，支撑构件可以被配置为在压电振动器的柔性振动节点处支撑压电振动器以减少振动损失。

公开(公告)号：US06984919B2

公开(公告)日：2006-01-10

申请号：US10395674

申请日：2003-03-24

申请人： Akihiro Iino ,  Koji Nitadori ,  Masao Kasuga

发明人： Akihiro Iino ,  Koji Nitadori ,  Masao Kasuga

IPC分类号： H02N2/06

CPC分类号： H02N2/0075

摘要： To provide a control system provided with a positioning mechanism including plural ultrasonic motors in the device, which can keep good operational stability as compared with a conventional system with a servo mechanism, is of an energy saving type suppressing power consumption and is compact in structure including the motor and a control circuit therefor. A control circuit in a control system of the present invention uses a common drive control circuit for a plurality of ultrasonic motors among the positioning mechanisms in which when the drive control circuit inputs a signal that specifies any ultrasonic motor and a desired-position designation signal, the drive control circuit conducts control operation that transmits an on signal to a driver of the subject motor to start the driving, and stops the driving when the motor reaches a desired position while receiving a position detection signal. Thus, the control system has a function of transmitting a signal indicating that the positioning operation is being conducted from a time point when commands are received to a time point when the positioning operation is completed. Then, an error signal is outputted when the motor is out of the desired position.

摘要翻译： 为了提供一种具有定位机构的控制系统，与具有伺服机构的传统系统相比，该装置中包括多个超声波马达的定位机构能够保持良好的运行稳定性，是节能型的抑制功率消耗，结构紧凑，包括 电机及其控制电路。 本发明的控制系统中的控制电路在定位机构中使用用于多个超声波马达的公共驱动控制电路，其中当驱动控制电路输入指定任何超声波马达的信号和期望位置指定信号时， 驱动控制电路进行向目标马达的驾驶员发送接通信号的控制动作，开始驱动，在接收到位置检测信号时电动机达到期望位置时停止驱动。 因此，控制系统具有从指令接收的时刻到定位动作完成的时刻发送表示进行定位动作的信号的功能。 然后，当电机超出所需位置时，输出错误信号。

公开(公告)号：US06707232B2

公开(公告)日：2004-03-16

申请号：US09772628

申请日：2001-01-30

申请人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki ,  Tatsuru Sato ,  Satoshi Watanabe ,  Yoko Shinohara

发明人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki ,  Tatsuru Sato ,  Satoshi Watanabe ,  Yoko Shinohara

IPC分类号： H01L4108

CPC分类号： H02N2/0015 ,  H02N2/103

摘要： An ultrasonic motor has a vibrating body and a piezoelectric element disposed on the vibrating body for generating a vibration wave to vibrate the vibrating body. The vibration wave has a vibration node disposed on a diagonal line of the vibrating body. At least one protrusion is connected to the vibrating body for vibration therewith. The protrusion is disposed on the vibrating body at a position which does not correspond to the position of the vibration node. A moving body is disposed in contact with and driven by the protrusion during vibration thereof.

摘要翻译： 超声波马达具有振动体和设置在振动体上的压电元件，用于产生使振动体振动的振动波。 振动波具有设置在振动体的对角线上的振动节点。 至少一个突起连接到振动体以与其振动。 该突出部设置在与振动节点的位置对应的位置上的振动体上。 移动体在其振动期间与突起接触并被驱动。

公开(公告)号：US06515941B1

公开(公告)日：2003-02-04

申请号：US09512238

申请日：2000-02-24

申请人： Kenji Suzuki ,  Akihiro Iino

发明人： Kenji Suzuki ,  Akihiro Iino

IPC分类号： G04B1924

CPC分类号： G04C17/0066 ,  G04C3/12

摘要： An electronic watch which can be small-sized even with an additional mechanism such as a calendar mechanism. In the electronic watch, a rectangular piezoelectric oscillator 32 acting as a piezoelectric actuator is forced at its end face to contact with a beam portion 35, which is mounted on a date ring 31 acting as a second indication member, thereby to drive the date ring 31 directly.

摘要翻译： 即使使用诸如日历机构的附加机构也能够小型化的电子手表。 在电子表中，用作压电致动器的矩形压电振动器32在其端面被迫使其与安装在用作第二指示构件的日期环31上的梁部35接触，从而驱动日期环 31直接

公开(公告)号：US06404103B1

公开(公告)日：2002-06-11

申请号：US09703148

申请日：2000-10-31

申请人： Kenji Suzuki ,  Masao Kasuga ,  Akihiro Iino ,  Takayuki Kosaka

发明人： Kenji Suzuki ,  Masao Kasuga ,  Akihiro Iino ,  Takayuki Kosaka

IPC分类号： H02N200

CPC分类号： H02N2/163 ,  H02N2/145

摘要： An ultrasonic motor with increased output power per unit volume is provided by simultaneously driving all of a plurality of polarized segments of a piezoelectric element having a circular disk shape and divided into a multiple of four polarized segments in a circumferential direction. Projections are provided at upper faces of the polarized segments of the piezoelectric element and spaced apart by an odd number of polarized segments. Polarities of adjacent polarized segments are the same and polarities of adjacent pairs are reverse to each other. A first polarized segment group comprises every other polarized segment and a second polarized segment group comprises the remaining polarized segments. By selecting whether phases of alternating voltages supplied to the first and second polarized segment groups are the same or are 180 degrees out of phase, the direction of the motor is determined.

摘要翻译： 通过同时驱动具有圆盘形状的压电元件的多个极化段的全部，并在圆周方向上分成四个极化段的倍数来提供每单位体积输出功率增加的超声波马达。 在压电元件的极化部分的上表面处设置有突出部分，并且间隔开奇数个极化部分。 相邻极化段的极性相同，相邻对的极性彼此相反。 第一极化段组包括每隔一个极化段，而第二极化段组包括剩余的极化段。 通过选择提供给第一和第二极化段组的交流电压的相位是相同还是相位相差180度，确定电动机的方向。

公开(公告)号：US06366003B1

公开(公告)日：2002-04-02

申请号：US09402519

申请日：2000-01-19

申请人： Masao Kasuga ,  Akihiro Iino ,  Makoto Suzuki ,  Kenji Suzuki

发明人： Masao Kasuga ,  Akihiro Iino ,  Makoto Suzuki ,  Kenji Suzuki

IPC分类号： H02N200

CPC分类号： H02N2/142 ,  H02N2/103

摘要： A compact ultrasonic motor is made easy to assemble and replace in an electronic apparatus by providing various electronic circuit components on a connector formed integrally with the ultrasonic motor. In one embodiment, a piezoelectric element is in contact with a vibrating body for undergoing vibration along with expansion-and-contraction movement of the piezoelectric element. A moving member is in contact with the vibrating body for undergoing movement in a desired direction in response to vibration of the vibrating body. A support member supports the piezoelectric element, the vibrating body, the moving member, along with a driving circuit for driving the ultrasonic motor and a connector for connecting the piezoelectric element to the driving circuit. The driving circuit is an AC signal generating circuit for supplying an AC signal to the piezoelectric element and a phase adjusting device for adjusting phase characteristics of the AC signal generating circuit. By providing the driving circuit and the connector on the support member, the ultrasonic motor is compact and easy to handle.

摘要翻译： 通过在与超声波马达一体形成的连接器上提供各种电子电路部件，使得紧凑型超声波马达易于在电子设备中组装和更换。 在一个实施例中，压电元件与振动体接触，用于随着压电元件的膨胀和收缩运动而经历振动。 移动构件与振动体接触，以响应于振动体的振动而在所需方向上运动。 支撑构件支撑压电元件，振动体，移动构件以及用于驱动超声波马达的驱动电路和用于将压电元件连接到驱动电路的连接器。 驱动电路是用于向压电元件提供AC信号的AC信号发生电路和用于调节AC信号发生电路的相位特性的相位调节装置。 通过在支撑构件上设置驱动电路和连接器，超声波马达紧凑且易于处理。

公开(公告)号：US06278221B1

公开(公告)日：2001-08-21

申请号：US09249267

申请日：1999-02-12

申请人： Masao Kasuga ,  Akihiro Iino ,  Makoto Suzuki

发明人： Masao Kasuga ,  Akihiro Iino ,  Makoto Suzuki

IPC分类号： H02N200

CPC分类号： H02N2/16

摘要： A small, efficient and stable ultrasonic motor is provided, wherein force is prevented from varying before and after assembly and can be adjusted after assembly without requiring troublesome operations. An electronic apparatus with such a ultrasonic motor is also provided. The ultrasonic motor has a force applying device for applying a force to a vibrating member to be vibrated and to a moving member placed in abutment against the vibrating member to cause a frictional force therebetween so that the moving member is driven by the frictional force. The force applying device comprises a main force applying device for applying a main force and a force adjusting elements for adjusting the force applied by the main force applying device. In one embodiment, the main force applying device is a leaf spring and the force applying elements are slits formed in the leaf spring and strips formed between the slits. Adjustment of the force applied by the leaf spring is performed by removing one or more of the strips.

摘要翻译： 提供了一种小型，高效和稳定的超声波马达，其中防止组装之前和之后的力变化，并且可以在组装之后进行调节，而不需要麻烦的操作。 还提供了一种具有这种超声波马达的电子设备。 超声波马达具有向施加振动的振动部件施加力的施力装置和与振动部件抵接的移动部件，从而在其间产生摩擦力，使得移动部件被摩擦力驱动。 施力装置包括用于施加主力的主力施加装置和用于调节由主施力装置施加的力的力调节元件。 在一个实施例中，主力施加装置是板簧，施力元件是形成在板簧中的狭缝和形成在狭缝之间的条。 通过移除一个或多个条带来执行由片簧施加的力的调节。

公开(公告)号：US06218769B1

公开(公告)日：2001-04-17

申请号：US09369089

申请日：1999-08-05

申请人： Akihiro Iino ,  Masao Kasuga ,  Satoshi Watanabe

发明人： Akihiro Iino ,  Masao Kasuga ,  Satoshi Watanabe

IPC分类号： H01L4104

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

摘要： An ultrasonic motor comprises first piezoelectric oscillators alternately arranged with first polarized regions having a first direction of polarization and second polarized regions having a second direction of polarization opposite to the first direction of polarization. The first piezoelectric oscillators undergo bending vibration in a first direction upon input of drive signals having a same phase to the first polarized regions and the second polarized regions to thereby excite the first and second polarized regions. Second piezoelectric oscillators are laminated to the first piezoelectric oscillators in a second direction generally perpendicular to the first direction for undergoing elongation and contraction vibration in the first direction. When a driving signal is applied to the first and second piezoelectric oscillators a drive force is generated by a combination of the bending vibration of the first piezoelectric oscillators and the elongation and contraction vibration of the second piezoelectric oscillators.

摘要翻译： 超声波马达包括交替布置的第一压电振荡器，其具有具有第一偏振方向的第一偏振区域和具有与第一偏振方向相反的第二偏振方向的第二偏振区域。 第一压电振荡器在向第一偏振区域和第二偏振区域输入具有相同相位的驱动信号时，在第一方向上经历弯曲振动，从而激发第一和第二偏振区域。 第二压电振荡器在大致垂直于第一方向的第二方向上层压到第一压电振荡器，以在第一方向上进行伸长和收缩振动。 当驱动信号施加到第一和第二压电振荡器时，通过第一压电振荡器的弯曲振动和第二压电振荡器的伸长和收缩振动的组合产生驱动力。

公开(公告)号：US5619089A

公开(公告)日：1997-04-08

申请号：US662902

申请日：1996-06-12

申请人： Kenji Suzuki ,  Makoto Suzuki ,  Masao Kasuga ,  Minako Suzuki ,  Akihiro Iino

发明人： Kenji Suzuki ,  Makoto Suzuki ,  Masao Kasuga ,  Minako Suzuki ,  Akihiro Iino

IPC分类号： H01L41/04 ,  H02N2/14 ,  H02N2/00

CPC分类号： H02N2/14 ,  H02N2/142 ,  H02N2/145 ,  H02N2/166

摘要： An ultrasonic motor comprises a piezo-electric element and electrode patterns disposed on a surface of the piezo-electric element at nearly equal intervals in a multiple of four. A vibrating member is disposed on another surface of and electrically connected to the piezo-electric element. A moving member is movably disposed on the vibrating member. First projections which frictionally drive the moving member by expansion and contraction movement of the piezo-electric element are disposed on a surface of the vibrating member near every other one of the boundaries of the electrode patterns of the piezo-electric element. Second projections are provided at each intermediate position between the first projections near all of the boundaries of the electrode patterns other than the boundaries near which the first projections are provided for adjusting the vibrating conditions of the vibrating member. The second projections have a different height from the first projection and do not frictionally drive the moving member. A pressure-regulating member urges the moving member into pressure contact with the vibrating member at a predetermined pressure.

摘要翻译： 超声波马达包括以四倍的倍数以几乎相等的间隔设置在压电元件的表面上的压电元件和电极图案。 振动构件设置在压电元件的另一表面上并与其电连接。 移动构件可移动地设置在振动构件上。 通过压电元件的膨胀和收缩运动来摩擦地驱动移动构件的第一凸起设置在振动构件的表面上，靠近压电元件的电极图案的每个边界。 在设置有第一突起的边界以外的电极图案的所有边界附近的第一突起之间的每个中间位置设置有第二突起，用于调节振动部件的振动条件。 第二突起具有与第一突起不同的高度，并且不摩擦地驱动移动构件。 压力调节构件促使移动构件以预定压力与振动构件压力接触。