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公开(公告)号：US6091179A
公开(公告)日：2000-07-18
申请号：US874249
申请日：1997-06-13
申请人： Michihiro Tobe , Daisuke Saya , Tadao Takagi
发明人： Michihiro Tobe , Daisuke Saya , Tadao Takagi
摘要： A driving device is equipped with a vibration actuator. The vibration actuator includes a roller element, an elastic member and electro-mechanical converting elements, which contact the elastic member. The electro-mechanical converting elements generate a vibration to drive the elastic member. Additionally, the roller element transfers relative movement to at least one element to be moved by contacting a driving part of the vibration actuator and by rotating. The roller element comprising a first part contacting the at least one driving section of the elastic member and a second part, separate from the first part, contacting the at least one element. In operation, the at least one electro-mechanical converting element vibrates the at least one driving section of the elastic member. The at least one driving section transfers the vibration to the first part of the roller element to rotate the roller element and the least one element is moved by rotation of the second part of the roller element.
摘要翻译： 驱动装置配有振动致动器。 振动致动器包括与弹性构件接触的滚子元件，弹性构件和机电转换元件。 机电转换元件产生振动以驱动弹性元件。 此外，滚子元件通过接触振动致动器的驱动部分并通过旋转而将相对运动传递到要移动的至少一个元件。 滚子元件包括接触弹性构件的至少一个驱动部分的第一部分和与第一部分分离的第二部分，该第二部分接触至少一个元件。 在操作中，至少一个机电转换元件使弹性构件的至少一个驱动部分振动。 至少一个驱动部分将振动传递到滚子元件的第一部分以使滚子元件旋转，并且至少一个元件通过滚子元件的第二部分的旋转而移动。
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公开(公告)号：US6078438A
公开(公告)日：2000-06-20
申请号：US59466
申请日：1998-04-14
申请人： Mine Shibata , Tunemi Gonda , Tadao Takagi , Tsuyoshi Matsumoto , Michihiro Tobe
发明人： Mine Shibata , Tunemi Gonda , Tadao Takagi , Tsuyoshi Matsumoto , Michihiro Tobe
摘要： A vibration actuator drive device using a linear type of ultrasonic actuator to drive a rotary member with high accuracy and good efficiency. The vibration actuator drive device includes an ultrasonic actuator which, by applying drive signals, produces longitudinal vibration and bending vibration to generate a drive force, and a rotary member in contact with the ultrasonic actuator. The combination of longitudinal vibration and bending vibration in the ultrasonic actuator generates relative motion in the rotary member having a circular locus of predetermined width. A compression mechanism causes compressive contact of the ultrasonic actuator with the rotary member. The longitudinal vibration vibrates in a direction about parallel to the direction of the drive force, and the bending vibration vibrates in a direction intersecting the longitudinal vibration. A drive force is transmitted to the rotary member at the inner circumferential side of the circular locus, and greatly differs from the drive force which is transmitted to the rotary member at the outer circumferential side. A lens barrel including a vibration actuator drive device drives a focus adjustment lens group in the optical axis direction by the conversion of the rotary motion of the rotary member to linear motion.
摘要翻译： 一种使用线性超声波致动器的振动致动器驱动装置，其以高精度和高效率驱动旋转部件。 振动致动器驱动装置包括超声致动器，其通过施加驱动信号产生纵向振动和弯曲振动以产生驱动力，以及与超声致动器接触的旋转构件。 超声波致动器中的纵向振动和弯曲振动的组合在具有预定宽度的圆形轨迹的旋转构件中产生相对运动。 压缩机构引起超声波致动器与旋转部件的压接。 纵向振动在与驱动力方向大致平行的方向上振动，弯曲振动在与纵向振动相交的方向上振动。 驱动力在圆形轨迹的内周侧传递到旋转构件，与在外周侧传递到旋转构件的驱动力大不相同。 包括振动致动器驱动装置的透镜筒通过将旋转构件的旋转运动转换成线性运动而驱动聚焦调整透镜组在光轴方向上。
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公开(公告)号：US5850117A
公开(公告)日：1998-12-15
申请号：US664124
申请日：1996-06-14
申请人： Michihiro Tobe , Tadao Takagi
发明人： Michihiro Tobe , Tadao Takagi
摘要： A vibration actuator is provided with a rectangular parallelepiped elastic member of which a surface bears electromechanical converting elements adhered thereto and a relative moving member maintained in pressure contact with the other surface of the elastic member. A driving voltage is applied to excite the electromechanical converting elements to generate, in the elastic member, a longitudinal vibration vibrating in a plane parallel to the surface of the elastic member contacting the relative moving member and a bending vibration vibrating in a direction crossing the contacting surface, thereby generating a relative motion between the elastic member and the relative moving member. The elastic member has working portions for adjusting the difference of the resonance frequencies of the longitudinal and bending vibrations.
摘要翻译： 振动致动器设置有长方体弹性构件，其表面承载粘附到其上的机电转换元件和保持与弹性构件的另一表面压力接触的相对移动构件。 施加驱动电压以激励机电转换元件，以在弹性构件中产生在平行于与相对移动构件接触的弹性构件的表面平行的平面中振动的纵向振动和沿与接触的方向振动的弯曲振动 从而在弹性构件和相对移动构件之间产生相对运动。 弹性构件具有用于调节纵向和弯曲振动的共振频率的差异的工作部分。
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公开(公告)号：US5821670A
公开(公告)日：1998-10-13
申请号：US774373
申请日：1996-12-27
申请人： Michihiro Tobe , Tadao Takagi
发明人： Michihiro Tobe , Tadao Takagi
摘要： A vibration actuator is provided which is capable of generating a bending vibration having a sufficient amplitude to allow production of a large driving force in a direction perpendicular to the axis of the bending vibration. Specifically, the vibration actuator generates a primary mode longitudinal vibration and a fourth mode bending vibration harmonically in an elastic body, so that a portion of the elastic body having a driving protrusion moves cyclically along an elliptical path. The driving protrusion comes into contact with a relative moving body along a section of the elliptical path, and thus exerts a driving force on the relative moving body. Reduced rigidity portions formed in the elastic body preferably at positions corresponding to antinodes of the bending vibration allow the bending vibration, and therefore also the driving force, to have greater amplitudes.
摘要翻译： 提供一种振动致动器，其能够产生具有足够振幅的弯曲振动，以允许在垂直于弯曲振动的轴线的方向上产生大的驱动力。 具体地说，振动致动器在弹性体中产生主模式纵向振动和第四模式弯曲振动，使得具有驱动突起的弹性体的一部分沿椭圆形路径循环移动。 驱动突起沿着椭圆路径的一部分与相对移动体接触，从而在相对移动体上施加驱动力。 优选地，在弹性体中形成的刚性部分优选地在与弯曲振动的波腹相对应的位置处，使得弯曲振动，并因此驱动力具有更大的振幅。
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公开(公告)号：US6043586A
公开(公告)日：2000-03-28
申请号：US840241
申请日：1997-04-11
申请人： Mina Kobayashi , Michihiro Tobe , Tunemi Gonda
发明人： Mina Kobayashi , Michihiro Tobe , Tunemi Gonda
CPC分类号： H01L41/0906
摘要： A vibration actuator produces a driving force by generating elliptic motion in the surface of an elastic member through electromechanical converting elements. The vibration actuator then generates relative motion between the elastic member and a relative moving member which is in compressive contact with the elastic member The electro-mechanical converting elements, in the form of piezoelectric elements, generate longitudinal vibrations and bending vibrations in the elastic member. The elastic member has a rectangular plate shape and includes a plurality of driving force output units which contact the relative moving member. Plural sliding members are respectively mounted on portions of the plurality of driving force output units such that the sliding members do not fully extend across the driving force output units in a short side direction.
摘要翻译： 振动致动器通过机电转换元件在弹性构件的表面中产生椭圆运动而产生驱动力。 振动致动器然后在弹性构件和与弹性构件压缩接触的相对移动构件之间产生相对运动。压电元件形式的机电转换元件在弹性构件中产生纵向振动和弯曲振动。 弹性构件具有矩形板形状并且包括与相对移动构件接触的多个驱动力输出单元。 多个滑动构件分别安装在多个驱动力输出单元的部分上，使得滑动构件在短边方向上不完全延伸穿过驱动力输出单元。
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公开(公告)号：US5777424A
公开(公告)日：1998-07-07
申请号：US580973
申请日：1996-01-03
申请人： Mitsuhiro Okazaki , Michihiro Tobe
发明人： Mitsuhiro Okazaki , Michihiro Tobe
CPC分类号： H02N2/0045 , H02N2/0055 , H02N2/106
摘要： A vibration actuator includes a vibration member constituted by two substantially semi-cylindrical elastic members, a relative moving member disposed on an end face of the vibration member, a first electro-mechanical converting element for generating a torsional vibration about the axis of the vibration member, a second electro-mechanical converting element for generating a longitudinal vibration in the axial direction of the vibration member, a pressing member for making the relative moving member and the vibration member press contact with each other, and a support member the outer circumferential portion of the vibration member to protrude therefrom in the radial direction of the vibration member, and which supports the vibration member.
摘要翻译： 振动致动器包括由两个基本上为半圆柱形的弹性构件构成的振动构件，设置在振动构件的端面上的相对移动构件，用于产生围绕振动构件的轴线的扭转振动的第一机电转换元件 ，用于在振动部件的轴向产生纵向振动的第二机电转换元件，用于使相对移动部件和振动部件相互压接的按压部件，以及支撑部件， 所述振动部件从所述振动部件的径向突出，并且所述振动部件支撑所述振动部件。
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公开(公告)号：US5672930A
公开(公告)日：1997-09-30
申请号：US714526
申请日：1996-09-16
摘要： A vibration linear motor utilizing a composite vibration of a bending vibration and a longitudinal vibration, provided with a plate-shaped elastic member having a plate-shaped main body portion and a pair of driving force output portions provided on the surface of the main body portion for driving a driven object; and an electromechanical converting element adhered to the elastic member and adapted to generate the composite vibration, wherein the electromechanical converting element is provided on the surface, between the paired driving force output portions, of the main body portion.
摘要翻译： 一种振动线性电动机，其利用弯曲振动和纵向振动的复合振动，设置有具有板状主体部分的板状弹性部件和设置在主体部分的表面上的一对驱动力输出部分 用于驱动被驱动物体; 以及机电转换元件，其粘附到弹性构件并适于产生复合振动，其中机电转换元件设置在主体部分的成对的驱动力输出部分之间的表面上。
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