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
  • 申请号: US13078883
    申请日: 2011-04-01
  • 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
VIBRATION TYPE ACTUATOR, VIBRATOR, AND VIBRATOR MANUFACTURING METHOD
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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