公开(公告)号：US06611081B1

公开(公告)日：2003-08-26

申请号：US09658760

申请日：2000-09-08

申请人： Mitsuhiro Okazaki ,  Tomoaki Suzuki ,  Nobuyoshi Nasu ,  Tadao Takagi ,  Tsuyoshi Matsumoto ,  Isao Sugaya ,  Tunemi Gonda

发明人： Mitsuhiro Okazaki ,  Tomoaki Suzuki ,  Nobuyoshi Nasu ,  Tadao Takagi ,  Tsuyoshi Matsumoto ,  Isao Sugaya ,  Tunemi Gonda

IPC分类号： H01L4108

CPC分类号： H01L41/0906

摘要： A vibration actuator includes a vibration element, which simultaneously generates a radial symmetric expansion vibration mode in which it expands and contracts in the radial direction and a non-axisymmetric planar vibration mode in which it bends to and fro in a non-axisymmetric manner within a single plane, and thereby drives a relative movement member, and a base member to which the vibration element is fixed. The vibration element includes at least one superimposed layer structure comprising a pair of electrical energy to mechanical energy conversion elements and an elastic member sandwiched between the pair of electrical energy to mechanical energy conversion elements. The elastic member includes a ring shaped portion to both the sides of which the pair of electrical energy to mechanical energy conversion elements are stuck, and a cylindrical shaped support portion, formed integrally with the ring shaped portion, which fixes the vibration element to the base member. The support portion includes an elastic portion which suppresses the transmission of vibration generated by the vibration element to the base member.

摘要翻译： 振动致动器包括振动元件，其同时产生径向对称膨胀振动模式，其中径向对称膨胀振动模式在径向方向上膨胀和收缩;非轴对称平面振动模式，其以非轴对称的方式来回弯曲 从而驱动相对运动构件，并且固定有振动元件的基座构件。 振动元件包括至少一个重叠层结构，其包括一对机械能转换元件的电能和夹在该对电能之间的机械能转换元件的弹性元件。 弹性构件包括两侧的环形部分，其一对电能到机械能转换元件被卡住，并且与环形部分整体形成的圆柱形支撑部分，其将振动元件固定到基座 会员。 支撑部分包括弹性部分，其抑制由振动元件产生的振动对基部构件的传递。

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

IPC分类号： G02B7/08 ,  H01L41/09 ,  G02B7/02

CPC分类号： H02N2/004 ,  G02B7/08 ,  H02N2/001 ,  H02N2/006 ,  H02N2/103

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。

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

IPC分类号： H02N2/00 ,  H01L41/09

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。

公开(公告)号：US6051912A

公开(公告)日：2000-04-18

申请号：US28924

申请日：1998-02-24

申请人： Tunemi Gonda

发明人： Tunemi Gonda

IPC分类号： H02N2/00 ,  H01L41/09

CPC分类号： H02N2/0085 ,  H02N2/004 ,  H02N2/026

摘要： A vibration actuator harmoniously generates both longitudinal and bending vibrations to thereby induce motion in a relative moving member. The vibration actuator improves drive efficiency and reduces soldering defects by providing an improved mounting between an electrical energy delivery member and electrodes. The elastic member is connected to an electro-mechanical converting element to convert electrical energy into mechanical displacement. The electrodes are disposed on the electro-mechanical converting element in a location approximately at a node of vibration on the elastic member. A plurality of electrically conductive sections are disposed between the plurality of thermal energy non-conducting sections and about the electrodes. The thermal energy non-conducting sections reduce damage to the electro-mechanical converting elements during the soldering process while the electrically conductive sections electrically connect each electrode to a respective electro-mechanical converting element.

摘要翻译： 振动致动器协调地产生纵向和弯曲振动，从而在相对移动构件中引起运动。 振动致动器通过提供电能传递构件和电极之间的改进的安装来提高驱动效率并减少焊接缺陷。 弹性构件连接到机电转换元件以将电能转换成机械位移。 电极在弹性构件上大致位于振动节点的位置设置在机电转换元件上。 多个导电部分设置在多个热能不导电部分和电极周围。 热能非导电部分在焊接过程期间减少对机电转换元件的损坏，而导电部分将每个电极电连接到相应的机电转换元件。