Invention Grant
- Patent Title: Vibration type driving device
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Application No.: US14249130Application Date: 2014-04-09
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Publication No.: US09621076B2Publication Date: 2017-04-11
- Inventor: Yuki Oda , Masanori Takahashi
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon USA, Inc. IP Division
- Priority: JP2013-083537 20130412; JP2014-032213 20140221
- Main IPC: H02N2/16
- IPC: H02N2/16 ; H02N2/00

Abstract:
A vibration type driving device includes an electro-mechanical energy conversion element; a vibrator fixed to the electro-mechanical energy conversion element and configured to be vibrated by application of voltage to the electro-mechanical energy conversion element; a first driven member and a second driven member frictionally driven by press-contact with the vibrator and configured to transmit rotational forces by frictional driving to an output shaft; and at least one pressing portion configured to bring the first driven member and the second driven member into press contact with the vibrator, wherein the pressing portion, the first driven member, the second driven member, and the vibrator are arranged to allow an air flow generated by an airflow generation unit to flow through an air-ventilation path of the pressing portion, between the first driven member and the second driven member, and an air-ventilation path of the vibrator.
Public/Granted literature
- US20140306578A1 VIBRATION TYPE DRIVING DEVICE Public/Granted day:2014-10-16
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