专利名称:Vibration wave driving device发明人:Seki, Hiroyuki,Tsukimoto, Takayuki申请号:EP10172019.1申请日:20090903公开号:EP2242123A2公开日:20101020
专利附图:
摘要:A vibration wave driving device comprises a vibrator (22) constituted at least of apiezo-electric element (21) and a contact member (20) capable of causing an ellipsoidalmovement by synthesis from stationary wave vibrations, and a supporting member (24)for supporting the vibrator (22), for driving a driven member (25) in contact with the
contact member (20) of the vibrator (22) by ellipsoidal movement of the vibrator.Furthermore, the vibration wave driving device has a vibration-preventing member (23)attached to a node (Q1, Q2) other than a support portion (2004, 2005, 2006, 2007) of thevibrator (22) among the common nodes of a nodal circle or a nodal line (L1, L2, L3, L4, L5)of the plural stationary wave vibrations excited in the vibrator (22).
申请人:Canon Kabushiki Kaisha
地址:30-2 Shimomaruko 3-chome Ohta-ku Tokyo 146-8501 JP
国籍:JP
代理机构:Vollnhals, Aurel
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