Invention Grant
- Patent Title: Vibration type motor and driver apparatus
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Application No.: US16985023Application Date: 2020-08-04
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Publication No.: US11522471B2Publication Date: 2022-12-06
- Inventor: Ryo Abe
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. I.P. Division
- Priority: JPJP2019-149801 20190819
- Main IPC: H02N2/02
- IPC: H02N2/02 ; G02B7/04 ; B06B1/06 ; H02N2/00

Abstract:
A vibration type motor has a vibrator; a frictional member, a pressurization unit that causes the vibrator and the frictional member to come into pressure-contact with each other, a retaining member that retains the frictional member, and a fixing unit that fixes the friction member to the retaining member, and the vibrator and the frictional member make relative movement by the vibrator being vibrated. The frictional member has a first area including an area that contacts the vibrator and a second area including an area that is retained by the retaining member. A size of the first area in an orthogonal direction that is orthogonal to both the direction of the relative movement and a pressure direction of the pressurization unit is smaller than a size of the second area in the orthogonal direction.
Public/Granted literature
- US20210058008A1 VIBRATION TYPE MOTOR AND DRIVER APPARATUS Public/Granted day:2021-02-25
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