公开(公告)号：US08482182B2

公开(公告)日：2013-07-09

申请号：US12754271

申请日：2010-04-05

申请人： Hisao Ito ,  Hideo Yoshida ,  Takezo Nagamitsu ,  Tetsuya Tokoro ,  Yukihiko Sigeoka

发明人： Hisao Ito ,  Hideo Yoshida ,  Takezo Nagamitsu ,  Tetsuya Tokoro ,  Yukihiko Sigeoka

IPC分类号： H01L41/00

CPC分类号： H02N2/06 ,  G02B7/08 ,  H02N2/025 ,  H02N2/028 ,  H02N2/062

摘要： A driving apparatus includes a piezoelectric element which undergoes expansion/contraction motion by a driving signal; a driving shaft which is mounted on the piezoelectric element, and undergoes reciprocating movement according to the expansion/contraction motion of the piezoelectric element; a first movement member which is friction-engaged with the driving shaft, and moves due to the reciprocating movement of the driving shaft; and a first control portion which applies driving signals to the piezoelectric element; the first control portion applies driving control pulse signals when the first movement member is to be moved, and applies stop control pulse signals when the stopped first movement member is not to be moved to put the first movement member into a vibration-arrested state. By this means, the stopped first movement member can be smoothly moved, and the first movement member in motion can be smoothly stopped.

摘要翻译： 驱动装置包括通过驱动信号进行伸缩运动的压电元件; 驱动轴，其安装在压电元件上，并且根据压电元件的膨胀/收缩运动进行往复运动; 与驱动轴摩擦接合并由于驱动轴的往复运动而移动的第一移动构件; 以及向压电元件施加驱动信号的第一控制部; 当第一移动部件移动时，第一控制部分施加驱动控制脉冲信号，并且当停止的第一移动部件不被移动以使第一移动部件处于振动停止状态时，施加停止控制脉冲信号。 通过这种方式，停止的第一移动构件能够平稳地移动，并且运动中的第一移动构件能够平稳地停止。

公开(公告)号：US20100270954A1

公开(公告)日：2010-10-28

申请号：US12754271

申请日：2010-04-05

申请人： Hisao ITO ,  Hideo Yoshida ,  Takezo Nagamitsu ,  Tetsuya Tokoro ,  Yukihiko Sigeoka

发明人： Hisao ITO ,  Hideo Yoshida ,  Takezo Nagamitsu ,  Tetsuya Tokoro ,  Yukihiko Sigeoka

IPC分类号： H02N2/14

CPC分类号： H02N2/06 ,  G02B7/08 ,  H02N2/025 ,  H02N2/028 ,  H02N2/062

摘要： A driving apparatus includes a piezoelectric element which undergoes expansion/contraction motion by a driving signal; a driving shaft which is mounted on the piezoelectric element, and undergoes reciprocating movement according to the expansion/contraction motion of the piezoelectric element; a first movement member which is friction-engaged with the driving shaft, and moves due to the reciprocating movement of the driving shaft; and a first control portion which applies driving signals to the piezoelectric element; the first control portion applies driving control pulse signals when the first movement member is to be moved, and applies stop control pulse signals when the stopped first movement member is not to be moved to put the first movement member into a vibration-arrested state. By this means, the stopped first movement member can be smoothly moved, and the first movement member in motion can be smoothly stopped.

摘要翻译： 驱动装置包括通过驱动信号进行伸缩运动的压电元件; 驱动轴，其安装在压电元件上，并且根据压电元件的膨胀/收缩运动进行往复运动; 与驱动轴摩擦接合并由于驱动轴的往复运动而移动的第一移动构件; 以及向压电元件施加驱动信号的第一控制部; 当第一移动部件移动时，第一控制部分施加驱动控制脉冲信号，并且当停止的第一移动部件不被移动以使第一移动部件处于振动停止状态时，施加停止控制脉冲信号。 通过这种方式，停止的第一移动构件能够平稳地移动，并且运动中的第一移动构件能够平稳地停止。