发明申请
US20110241488A1 VIBRATION TYPE ACTUATOR, VIBRATOR, AND VIBRATOR MANUFACTURING METHOD
有权
振动式执行器,振动器和振动器制造方法
- 专利标题: VIBRATION TYPE ACTUATOR, VIBRATOR, AND VIBRATOR MANUFACTURING METHOD
- 专利标题(中): 振动式执行器,振动器和振动器制造方法
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申请号: US13078883申请日: 2011-04-01
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公开(公告)号: US20110241488A1公开(公告)日: 2011-10-06
- 发明人: Atsushi Kimura
- 申请人: Atsushi Kimura
- 申请人地址: JP Tokyo
- 专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人地址: JP Tokyo
- 优先权: JP2010-087891 20100406
- 主分类号: H02N2/00
- IPC分类号: H02N2/00
摘要:
A vibration type actuator providing a satisfactory actuator performance even when an increase in speed is achieved and having a contact spring. The actuator includes a vibrator equipped with an electrical-mechanical energy conversion element, an elastic member to which the electrical-mechanical energy conversion element is fixed, and a protrusion provided on the elastic member. The vibrator can generate an elliptic movement in the protrusion. A driven body is configured to come into contact with the protrusion and to make a relative movement with respect to the vibrator. The protrusion includes a contact portion having a contact surface contacting the driven body, a continuous side wall portion protruding with respect to one end surface of the elastic member and forming a hollow structure, and a connection portion connecting the contact portion and the side wall portion and exhibiting flexibility in a direction normal to the contact surface.
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