Invention Grant
- Patent Title: Vibration wave motor and driving apparatus using vibration wave motor
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Application No.: US16213144Application Date: 2018-12-07
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Publication No.: US11336211B2Publication Date: 2022-05-17
- Inventor: Mai Nakabayashi , Ryo Yamasaki , Yasufumi Yamamoto , Shunsuke Ninomiya
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JPJP2017-235870 20171208
- Main IPC: H02N2/02
- IPC: H02N2/02 ; H02N2/04 ; H02N2/00 ; H01L41/187 ; G02B7/04

Abstract:
A vibration wave motor includes a vibrator; a first holding member configured to hold the vibrator; a second holding member; an elastic coupling member configured to couple the first holding member and the second holding member to each other; a friction member; and a pressurizing unit, wherein the vibrator and the friction member relatively move due to vibration of the vibrator, wherein the elastic coupling member includes a first coupling portion and a second coupling portion, and wherein one of the first coupling portion and the second coupling portion is arranged on a straight line that is parallel to a direction of the relative movement and passes through a pressurizing gravity center and another of the first coupling portion and the second coupling portion is arranged on a straight line that is orthogonal to the direction of the relative movement and passes through the pressurizing gravity center.
Public/Granted literature
- US20190181777A1 VIBRATION WAVE MOTOR AND DRIVING APPARATUS USING VIBRATION WAVE MOTOR Public/Granted day:2019-06-13
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