发明授权
- 专利标题： Rotary type driving device employing electromechanical transducer and apparatus provided with the rotary type driving device
- 专利标题（中）： 采用机电换能器的旋转式驱动装置和设置有旋转式驱动装置的装置
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申请号： US923111申请日： 1997-09-04
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公开(公告)号： US6092431A公开(公告)日： 2000-07-25
- 发明人: Yasuhiro Okamoto , Yasushi Tanijiri
- 申请人： Yasuhiro Okamoto , Yasushi Tanijiri
- 申请人地址： JPX Osaka
- 专利权人： Minolta Co., Ltd.
- 当前专利权人： Minolta Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX8-253956 19960905
- 主分类号： H02N2/00
- IPC分类号： H02N2/00 ; F16H19/02 ; G03B17/42 ; H01L41/09 ; F16H27/02 ; G02B7/02 ; H01L41/04
摘要：
A driving device (actuator) 10 includes a driving shaft 16 which is Linearly driven in the axial direction by a piezoelectric element 15 and two disks 18a and 18b which are made of an elastic material and fixed to a rotary shaft 17. Peripheral portions of the two disks 18a and 18b vertically hold the driving shaft 16 between them so as to be frictionally coupled with the driving shaft 16 by their elastic forces. When the driving shaft 16 is linearly driven in the axial direction by the piezoelectric element 15, the peripheral portions of the two disks 18a and 18b receive a force in the tangential direction and rotate around the rotary shaft 17.
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