Invention Grant
- Patent Title: Friction drive actuator
- Patent Title (中): 摩擦驱动执行器
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Application No.: US12035719Application Date: 2008-02-22
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Publication No.: US08297149B2Publication Date: 2012-10-30
- Inventor: Shigeaki Tochimoto , Akihiro Oki , Takashi Matsuo
- Applicant: Shigeaki Tochimoto , Akihiro Oki , Takashi Matsuo
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Opto, Inc.
- Current Assignee: Konica Minolta Opto, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Cozen O'Connor
- Priority: JP2007-048787 20070228; JP2008-005502 20080115
- Main IPC: F16F15/22
- IPC: F16F15/22 ; G05G1/00 ; G05G3/00 ; H01L41/00 ; H02N2/00

Abstract:
A friction drive actuator, comprising: a vibration member which is configured to be driven to vibrate by expansion and contraction of a piezoelectric displacement portion which is included in the vibration member and driven by a driving signal; a sliding member which is in contact with the vibration member and is driven by the vibration member in a first direction with respect to the vibration member; a pressing member which causes the vibration member and the sliding member to come into a pressure contact therebetween; and a control member which is provided on each of the vibration member and the sliding member at a contact portion therebetween for controlling a relative movement of the sliding member with respect to the vibration member in a direction perpendicular to the first direction when the vibration member and the sliding member are pressedly contacted with each other by the pressing member.
Public/Granted literature
- US20080207390A1 FRICTION DRIVE ACTUATOR Public/Granted day:2008-08-28
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