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    • 1. 发明授权
    • Vibration actuator and imaging device
    • 振动执行器和成像装置
    • US08344591B2
    • 2013-01-01
    • US12659494
    • 2010-03-10
    • Yoshihiko SuzukiEiji MatsukawaKazuyasu OoneMasaaki Tanabe
    • Yoshihiko SuzukiEiji MatsukawaKazuyasu OoneMasaaki Tanabe
    • H02N2/12
    • H02N2/105G02B7/08
    • Provided is a vibration actuator comprising an elastic body; an electromechanical transducer that causes the elastic body to vibrate; and a rotating body that rotates in response to a drive force received from contact with the elastic body at a vibrational antinode thereof, wherein the rotating body contacts the elastic body at a prescribed position along a direction in which an axis of the rotation extends. In the vibration actuator, the elastic body includes an elastic body contact member that is arranged in a region that includes the vibrational antinode of the elastic body, the rotating body includes a rotating body contact member that receives a drive force by contacting the elastic body contact member, and one of the elastic body contact member and the rotating body contact member has a contact surface that is oriented diagonally to the axis of rotation and contacts the other of the elastic body contact member and the rotating body contact member.
    • 提供一种振动致动器,包括弹性体; 导致弹性体振动的机电换能器; 以及旋转体,其响应于在其振动波腹处与弹性体接触而产生的驱动力而旋转,其中旋转体沿着旋转轴线延伸的方向在规定位置处接触弹性体。 在振动促动器中,弹性体包括弹性体接触构件,该弹性体接触构件布置在包括弹性体的振动波腹的区域中,旋转体包括旋转体接触构件,该旋转体接触构件通过使弹性体接触 所述弹性体接触构件和所述旋转体接触构件中的一个具有与所述旋转轴线对角定向并且与所述弹性体接触构件和所述旋转体接触构件中的另一个接触的接触面。
    • 2. 发明申请
    • Actuator and imaging device
    • 执行器和成像装置
    • US20100247087A1
    • 2010-09-30
    • US12659494
    • 2010-03-10
    • Yoshihiko SuzukiEiji MatsukawaKazuyasu OoneMasaaki Tanabe
    • Yoshihiko SuzukiEiji MatsukawaKazuyasu OoneMasaaki Tanabe
    • G03B3/10H02N2/12
    • H02N2/105G02B7/08
    • Provided is a vibration actuator comprising an elastic body; an electromechanical transducer that causes the elastic body to vibrate; and a rotating body that rotates in response to a drive force received from contact with the elastic body at a vibrational antinode thereof, wherein the rotating body contacts the elastic body at a prescribed position along a direction in which an axis of the rotation extends. In the vibration actuator, the elastic body includes an elastic body contact member that is arranged in a region that includes the vibrational antinode of the elastic body, the rotating body includes a rotating body contact member that receives a drive force by contacting the elastic body contact member, and one of the elastic body contact member and the rotating body contact member has a contact surface that is oriented diagonally to the axis of rotation and contacts the other of the elastic body contact member and the rotating body contact member.
    • 提供一种振动致动器,包括弹性体; 导致弹性体振动的机电换能器; 以及旋转体,其响应于在其振动波腹处与弹性体接触而产生的驱动力而旋转,其中旋转体沿着旋转轴线延伸的方向在规定位置处接触弹性体。 在振动促动器中,弹性体包括弹性体接触构件,该弹性体接触构件布置在包括弹性体的振动波腹的区域中,旋转体包括旋转体接触构件,该旋转体接触构件通过使弹性体接触 所述弹性体接触构件和所述旋转体接触构件中的一个具有与所述旋转轴线对角定向并且与所述弹性体接触构件和所述旋转体接触构件中的另一个接触的接触面。
    • 9. 发明授权
    • Vibration actuator with improved contact surface
    • 具有改进的接触表面的振动致动器
    • US5818147A
    • 1998-10-06
    • US843193
    • 1997-04-14
    • Mina KobayashiKazuyasu Oone
    • Mina KobayashiKazuyasu Oone
    • H02N2/00H01L41/09
    • H02N2/004H02N2/0065
    • A vibration actuator has a vibration element which generates vibrations and has a contact surface. The vibration actuator further has a relative motion member which moves in a movement direction with respect to the vibration element upon generation of vibrations by the vibration element. The relative motion member has a contact surface which is in compressive contact with the contact surface of the vibration element. At least one of the contact surface of the vibration element and the contact surface of the relative motion member is polished to have a plural streaky scratches. The plural streaky scratches may be in a principle direction which is in a direction other than a direction at a right angle with respect to the movement direction. In this case, the principle direction may be at angle with respect to the movement direction. Alternatively, the principle direction may be approximately parallel to the movement direction. As an alternative to being formed in the principle direction, the plural streaky scratches may be formed in irregular directions or formed in irregular circular arcs. The at least one contact surface polished to have streaky scratches may have center line average height Ra which is a maximum in a rough direction and is within the range 0.05 .mu.m.ltoreq.Ra.ltoreq.1.0 .mu.m.
    • 振动致动器具有产生振动并具有接触表面的振动元件。 振动致动器还具有相对运动构件,该相对运动构件在由振动元件产生振动时相对于振动元件在运动方向上移动。 相对运动构件具有与振动元件的接触表面压接的接触表面。 振动元件的接触表面和相对运动元件的接触表面中的至少一个被抛光以具有多个条纹划痕。 多个条纹划痕可以在除了相对于移动方向成直角的方向以外的方向上的主方向上。 在这种情况下,主要方向可以相对于移动方向成角度。 或者,主要方向可以大致平行于移动方向。 作为在主要方向上形成的替代方案,多个条纹划痕可以形成为不规则的方向或形成为不规则的圆弧。 抛光至具有条纹划痕的至少一个接触表面可以具有在粗糙方向上最大的中心线平均高度Ra,并且在0.05μm≤Ra<1.0μm的范围内。
    • 10. 发明授权
    • Vibration actuator to control pitching vibration
    • 振动执行器控制俯仰振动
    • US06242846B1
    • 2001-06-05
    • US09248003
    • 1999-02-10
    • Takatoshi AshizawaTsuyoshi MatsumotoMitsuhiro OkazakiKazuyasu Oone
    • Takatoshi AshizawaTsuyoshi MatsumotoMitsuhiro OkazakiKazuyasu Oone
    • H02N200
    • H01L41/0906
    • An ultrasonic actuator to suppress or eliminate pitching vibration arising in a vibration element when driving the ultrasonic actuator and to increase driving efficiency and reduce noise. The ultrasonic actuator includes a vibration element; an electromechanical conversion element mounted on the vibration element to generate a drive force in the vibration element by excitation of the electromechanical conversion element; drive force output members to extract a drive force obtained by excitation of the electromechanical conversion element; a relative motion member in contact with the drive force output members and driven in relative motion with respect to the vibration element by the drive force; a base member; and a fixed member to fix the vibration element to the base member. The vibration element generates, by excitation of the electromechanical conversion element, a first vibration in a first direction, and a second vibration in a second direction different from the first direction, and the fixed member is located in at least two (2) positions along the vibration direction of the first vibration and includes a first restriction member to restrict the vibration element in a vibration direction of the first vibration, and a second restriction member to restrict the vibration element in a vibration direction of the second vibration.
    • 一种超声波致动器,用于抑制或消除驱动超声波致动器时在振动元件中产生的俯仰振动,并提高驱动效率并降低噪音。 超声波致动器包括振动元件; 安装在所述振动元件上的机电转换元件,用于通过所述机电转换元件的激励而在所述振动元件中产生驱动力; 驱动力输出构件,以提取通过所述机电转换元件的激励而获得的驱动力; 相对运动构件,其与驱动力输出构件接触并通过驱动力相对于振动元件相对运动地驱动; 基地会员 以及固定构件,用于将振动元件固定到基座构件。 所述振动元件通过所述机电转换元件的激励而产生沿着第一方向的第一振动和沿与所述第一方向不同的第二方向的第二振动,并且所述固定部件位于沿着 第一振动的振动方向,并且包括用于限制振动元件在第一振动的振动方向上的第一限制构件和第二限制构件,以在第二振动的振动方向上限制振动元件。