公开(公告)号：US06952072B2

公开(公告)日：2005-10-04

申请号：US10281021

申请日：2002-10-25

申请人： Akihiro Iino ,  Satoshi Watanabe ,  Masao Kasuga ,  Makoto Suzuki

发明人： Akihiro Iino ,  Satoshi Watanabe ,  Masao Kasuga ,  Makoto Suzuki

IPC分类号： A61B17/32 ,  A61B19/00 ,  H01L41/09 ,  H02N2/16 ,  H02N2/12

CPC分类号： H02N2/0045 ,  A61B17/320068 ,  A61B2017/320088 ,  A61B2090/306 ,  A61B2090/3614 ,  H02N2/106

摘要： An ultrasonic motor has a piezoelectric vibrator driven by a voltage signal to undergo expansion and compression movement. At least two elastic bodies are connected to opposite ends of the piezoelectric vibrator and are vibrationally driven by the expansion and compression movement of the piezoelectric vibrator. Each of the elastic bodies has at least one groove formed in a surface thereof for converting the expansion and compression movement of the piezoelectric vibrator into torsional vibration so that the elastic bodies generate a combination of longitudinal vibration and torsional vibration. A movable member is connected to the elastic bodies to be frictionally driven by the combination of longitudinal and torsional vibrations generated by the elastic bodies.

摘要翻译： 超声波马达具有由电压信号驱动的压电振动器，以进行膨胀和压缩运动。 至少两个弹性体连接到压电振动器的相对端，并且由压电振动器的膨胀和压缩运动振动驱动。 每个弹性体具有形成在其表面中的至少一个槽，用于将压电振动器的膨胀和压缩运动转换成扭转振动，使得弹性体产生纵向振动和扭转振动的组合。 可动构件通过由弹性体产生的纵向和扭转振动的组合而被连接到弹性体上以被摩擦地驱动。

公开(公告)号：US06765334B1

公开(公告)日：2004-07-20

申请号：US09663878

申请日：2000-09-15

申请人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki

发明人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki

IPC分类号： H01L4106

CPC分类号： H02N2/166 ,  H02N2/126

摘要： A linear motion mechanism comprises a supersonic motor having a rotor which is rotationally driven by vibration of a vibrating body having a piezoelectric element. A transmission mechanism is disposed on the rotor for rotation therewith. A moving body undergoes linear movement in a direction crosswise to a longitudinal axis of a rotational shaft of the rotor in accordance with rotation of the transmission mechanism. A pressurizing mechanism presses the moving body into pressure contact with the transmission mechanism.

摘要翻译： 直线运动机构包括具有转子的超音速马达，所述转子由具有压电元件的振动体的振动旋转驱动。 传动机构设置在转子上以与其一起旋转。 移动体根据传动机构的旋转而沿与转子的旋转轴的纵轴交叉的方向进行直线运动。 加压机构使移动体与传动机构压力接触。

公开(公告)号：US06177754B1

公开(公告)日：2001-01-23

申请号：US09219996

申请日：1998-12-23

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

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

IPC分类号： H01L4104

CPC分类号： H02N2/163

摘要： An ultrasonic motor has a piezoelectric element having an electrode pattern and driven by a voltage signal to undergo expansion and compression. An oscillator is connected to the piezoelectric element and is vibrationally driven by the expansion and compression movement of the piezoelectric vibrator. A rotor is disposed on the oscillator to be frictionally driven by expansion and compression movement of the piezoelectric element. A pivot member is connected to a central portion of the rotor. A pressing member is in pressure contact with the pivot member for urging the rotor into pressure contact with the oscillator. The pressing member and the pivot member are comprised of different materials, and the material of the pivot member has a hardness greater than that of the pressing member.

摘要翻译： 超声波马达具有具有电极图案并由电压信号驱动的压电元件进行膨胀和压缩。 振荡器连接到压电元件，并通过压电振动器的膨胀和压缩运动振动驱动。 转子设置在振荡器上，以通过压电元件的膨胀和压缩运动来摩擦驱动。 枢转构件连接到转子的中心部分。 压紧构件与枢转构件压力接触，用于促使转子与振荡器压力接触。 按压构件和枢转构件由不同的材料构成，并且枢转构件的材料的硬度大于按压构件的硬度。

公开(公告)号：US5780955A

公开(公告)日：1998-07-14

申请号：US723114

申请日：1996-09-30

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

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

IPC分类号： H02N2/00 ,  H01L41/04 ,  H02N2/12 ,  H02N2/14 ,  H01L41/08

CPC分类号： H02N2/166 ,  H02N2/145

摘要： An ultrasonic motor device comprises a vibrating member, a moving member movably disposed on the vibrating member and driven by vibration of the vibrating member, and a pressure regulating member for urging the moving member into pressure contact with the vibrating member. A self-excited vibration circuit has a piezo-electric element having a first surface supporting at least one group of electrodes and a second surface supporting the vibrating member to be vibrationally driven by the piezo-electric element, an amplifying circuit for receiving a voltage generated on the second surface of the piezo-electric element and amplifying the received voltage to a predetermined voltage level, and a boosting circuit for boosting an output voltage of the amplifying circuit and applying the boosted output voltage to the group of electrodes of the piezo-electric element to vibrationally drive the vibrating member.

摘要翻译： 一种超声波马达装置，包括振动部件，可移动地设置在所述振动部件上并由所述振动部件的振动驱动的移动部件，以及用于使所述移动部件与所述振动部件压力接触的压力限制部件。 自激振动电路具有压电元件，其具有支撑至少一组电极的第一表面和支撑振动元件的第二表面以由压电元件振动驱动;放大电路，用于接收产生的电压 在压电元件的第二表面上并将接收电压放大到预定的电压电平;以及升压电路，用于升压放大电路的输出电压，并将升压的输出电压施加到压电电极组 元件以振动地驱动振动构件。

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：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：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：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。

公开(公告)号：US06570296B1

公开(公告)日：2003-05-27

申请号：US09696788

申请日：2000-10-26

申请人： Akihiro Iino ,  Makoto Suzuki ,  Masao Kasuga

发明人： Akihiro Iino ,  Makoto Suzuki ,  Masao Kasuga

IPC分类号： H02W200

CPC分类号： H02N2/126 ,  H02N2/166

摘要： A drive mechanism has an ultrasonic motor having a rotor which is rotationally driven by vibration of a vibrating member having a piezoelectric element. The rotor has a projecting portion for rotation therewith. A driven member is connected to the rotor for undergoing movement along a surface extending in a radial direction of the rotor. A guide member restricts movement of the driven member and guides movement of the receiving member in a given direction. A receiving member contacts the projecting portion of the rotor to limit a range of rotation of the rotor and limit a range of movement of the driven member.

摘要翻译： 驱动机构具有具有转子的超声波马达，该转子由具有压电元件的振动部件的振动旋转驱动。 转子具有用于与其一起旋转的突出部分。 被驱动构件连接到转子，以沿着沿转子的径向方向延伸的表面运动。 引导构件限制从动构件的移动并引导接收构件沿给定方向的移动。 接收构件接触转子的突出部分以限制转子的旋转范围并限制从动构件的移动范围。