发明名称 |
Carrier apparatus using ultrasonic actuator |
摘要 |
This carrier apparatus employs an ultrasonic actuator comprising a piezoelectric actuator made of a piezoelectric element which extends and contracts in the radial direction of a cylindrical vibrator in the inner space of the cylindrical vibrator as a power source. This ultrasonic actuator elastically deforms the cross section of the peripheral wall of the cylindrical vibrator into an elliptical shape by the extension and contraction of the piezoelectric actuator, and transmits a driving force in a tangential direction to an article pressed on a predetermined position on the outer peripheral surface of the cylindrical body by utilizing the circumferential and radial transformations (or displacements) generated on the outer peripheral surface of the cylindrical vibrator upon elastic deformation of the elliptical shape.
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申请公布号 |
US5199701(A) |
申请公布日期 |
1993.04.06 |
申请号 |
US19900605071 |
申请日期 |
1990.10.29 |
申请人 |
CASIO COMPUTER CO., LTD. |
发明人 |
SHIOYA, MASAHARU;MIZUSHINA, TAKAHIRO |
分类号 |
H01L41/09 |
主分类号 |
H01L41/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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