Invention Grant
- Patent Title: Vibration-type driving apparatus
- Patent Title (中): 振动式驱动装置
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Application No.: US13302273Application Date: 2011-11-22
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Publication No.: US08970091B2Publication Date: 2015-03-03
- Inventor: Kei Suefuji
- Applicant: Kei Suefuji
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2010-274285 20101209
- Main IPC: H02N2/16
- IPC: H02N2/16

Abstract:
A vibration-type driving apparatus includes a vibration member, to which an electrical-mechanical energy conversion element is fixed and which is vibrated when a driving voltage is applied to the electrical-mechanical energy conversion element; and a moving member that comes into contact with the vibration member and rotates relative to the vibration member in accordance with the vibration. The moving member includes a body portion and a contacting portion with a friction surface that comes into frictional contact with the vibration member and, in an area extending from a rotation axis in a radial direction, a line connecting a centroid of a shape of the moving member to an arbitrary point of the contacting portion of the moving member is parallel to a direction of the vibration trajectory of the vibration member.
Public/Granted literature
- US20120146460A1 VIBRATION-TYPE DRIVING APPARATUS Public/Granted day:2012-06-14
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