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    • 1. 发明授权
    • Piezoelectric motor and camera device
    • 压电电机和相机装置
    • US07812507B2
    • 2010-10-12
    • US12186882
    • 2008-08-06
    • Hiroshi TakahashiTakahiro KokuboOsamu NishimuraToshikatsu Akiba
    • Hiroshi TakahashiTakahiro KokuboOsamu NishimuraToshikatsu Akiba
    • H01L41/08
    • H04N5/2251H02N2/0025H02N2/103H02N2/108
    • A piezoelectric motor includes: a driven member having a substantially spherical shape; a base; a support member provided on the base; a gimbal frame that is provided on a periphery of the driven member; a first bearing that couples the gimbal frame to the support member to be rotatable around a first rotation axis; a second bearing that couples the driven member to the gimbal frame to be rotatable around a second rotation axis that is orthogonal to the first rotation axis; a plurality of piezoelectric elements, each of which has one end fixed onto the base and the other end disposed to be in contact with an actuation portion that abuts the driven member; and an elastic portion that is formed on the gimbal frame, the elastic portion being displaceable in a direction orthogonal to the first rotation axis and the second rotation axis.
    • 压电马达包括:具有大致球形的从动构件; 一个基地 设置在基座上的支撑构件; 设置在被驱动构件的周边上的万向架框架; 第一轴承,其将所述万向架框架联接到所述支撑构件以围绕第一旋转轴线旋转; 第二轴承,其将所述从动构件联接到所述万向架框架,以围绕与所述第一旋转轴线正交的第二旋转轴线旋转; 多个压电元件,每个压电元件的一端固定在基座上,而另一端设置成与抵靠从动构件的致动部分接触; 以及形成在所述万向架框架上的弹性部分,所述弹性部分可在与所述第一旋转轴线和所述第二旋转轴线正交的方向上移位。
    • 2. 发明申请
    • PIEZOELECTRIC MOTOR AND CAMERA DEVICE
    • 压电电机和相机设备
    • US20090039734A1
    • 2009-02-12
    • US12186882
    • 2008-08-06
    • Hiroshi TakahashiTakahiro KokuboOsamu NishimuraToshikatsu Akiba
    • Hiroshi TakahashiTakahiro KokuboOsamu NishimuraToshikatsu Akiba
    • H02N2/04H04N5/232
    • H04N5/2251H02N2/0025H02N2/103H02N2/108
    • A piezoelectric motor includes: a driven member having a substantially spherical shape; a base; a support member provided on the base; a gimbal frame that is provided on a periphery of the driven member; a first bearing that couples the gimbal frame to the support member to be rotatable around a first rotation axis; a second bearing that couples the driven member to the gimbal frame to be rotatable around a second rotation axis that is orthogonal to the first rotation axis; a plurality of piezoelectric elements, each of which has one end fixed onto the base and the other end disposed to be in contact with an actuation portion that abuts the driven member; and an elastic portion that is formed on the gimbal frame, the elastic portion being displaceable in a direction orthogonal to the first rotation axis and the second rotation axis.
    • 压电马达包括:具有大致球形的从动构件; 一个基地 设置在基座上的支撑构件; 设置在被驱动构件的周边上的万向架框架; 第一轴承,其将所述万向架框架联接到所述支撑构件以围绕第一旋转轴线旋转; 第二轴承,其将所述从动构件联接到所述万向架框架,以围绕与所述第一旋转轴线正交的第二旋转轴线旋转; 多个压电元件,每个压电元件的一端固定在基座上,另一端设置成与抵靠从动构件的致动部分接触; 以及形成在所述万向架框架上的弹性部分,所述弹性部分可在与所述第一旋转轴线和所述第二旋转轴线正交的方向上移位。
    • 4. 发明授权
    • Piezoelectric motor and camera device
    • 压电电机和相机装置
    • US07960896B2
    • 2011-06-14
    • US12182389
    • 2008-07-30
    • Hiroshi TakahashiToshikatsu Akiba
    • Hiroshi TakahashiToshikatsu Akiba
    • H02N2/04
    • G03B37/02H02N2/0025H02N2/026H02N2/028H02N2/043H02N2/103H02N2/108
    • A piezoelectric motor includes: a base; first and second piezoelectric elements that are provided symmetrically on the base to face with each other, the first and second piezoelectric elements actuating in opposite directions; first and second displacement enlarging mechanisms that respectively enlarge actuating displacements of the first and second piezoelectric elements through first and second levers that rotate around first and second fulcrums fixed to the base; first and second leaf springs that are respectively coupled to action points of the first and second levers at one ends thereof; and an actuating portion that is coupled to the other ends of the first and second leaf springs and swings in accordance with actuation of the first and the second piezoelectric elements, the actuating portion being urged against a driven member to actuate the driven member with a frictional force.
    • 压电马达包括:基座; 第一和第二压电元件,其对称地设置在基座上以彼此面对,第一和第二压电元件以相反的方向致动; 第一和第二位移扩大机构,其分别通过围绕固定到基座的第一和第二支点旋转的第一和第二杠杆来分别扩大第一和第二压电元件的致动位移; 第一和第二板簧分别在其一端耦合到第一和第二杆的作用点; 以及致动部分,其联接到所述第一和第二板簧的另一端并且根据所述第一和第二压电元件的致动而摆动,所述致动部分被推靠在从动构件上,以使所述从动构件以摩擦 力。
    • 5. 发明申请
    • PIEZOELECTRIC MOTOR AND CAMERA DEVICE
    • 压电电机和相机设备
    • US20090058227A1
    • 2009-03-05
    • US12182389
    • 2008-07-30
    • Hiroshi TakahashiToshikatsu Akiba
    • Hiroshi TakahashiToshikatsu Akiba
    • H02N2/08G02B7/09
    • G03B37/02H02N2/0025H02N2/026H02N2/028H02N2/043H02N2/103H02N2/108
    • A piezoelectric motor includes: a base; first and second piezoelectric elements that are provided symmetrically on the base to face with each other, the first and second piezoelectric elements actuating in opposite directions; first and second displacement enlarging mechanisms that respectively enlarge actuating displacements of the first and second piezoelectric elements through first and second levers that rotate around first and second fulcrums fixed to the base; first and second leaf springs that are respectively coupled to action points of the first and second levers at one ends thereof; and an actuating portion that is coupled to the other ends of the first and second leaf springs and swings in accordance with actuation of the first and the second piezoelectric elements, the actuating portion being urged against a driven member to actuate the driven member with a frictional force.
    • 压电马达包括:基座; 第一和第二压电元件,其对称地设置在基座上以彼此面对,第一和第二压电元件以相反的方向致动; 第一和第二位移扩大机构,其分别通过围绕固定到基座的第一和第二支点旋转的第一和第二杠杆来分别扩大第一和第二压电元件的致动位移; 第一和第二板簧分别在其一端耦合到第一和第二杆的作用点; 以及致动部分,其联接到所述第一和第二板簧的另一端并且根据所述第一和第二压电元件的致动而摆动,所述致动部分被推靠在从动构件上,以使所述从动构件以摩擦 力。