Title:
VIBRATION TYPE DRIVING DEVICE AND IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2022040910
Kind Code:
A
Abstract:
To provide a low-cost, highly accurate vibration-type driving device while reducing the drive load.SOLUTION: A driving object body 121 is supported by a support 122 in such a manner that the driving object body 121 can rotate about a center of rotation P at a position of a fitting radius Rf. A protrusion 102a of a vibrator 101 comes in pressurized contact with the driving object body 121 at a position of a driving radius Rd. A rolling ball 108 receives a pressurized force F1 and rolls between the driving object body 121 and the support 122 at a position of an orbital radius Rr. The fitting radius Rf is shorter and the orbital radius Rr is longer than the driving radius Rd.SELECTED DRAWING: Figure 4
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Inventors:
NEMOTO AYUMU
TOMURA KAORI
YAMAMOTO YASUSHI
TOMURA KAORI
YAMAMOTO YASUSHI
Application Number:
JP2020145845A
Publication Date:
March 11, 2022
Filing Date:
August 31, 2020
Export Citation:
Assignee:
CANON KK
International Classes:
H02N2/12
Domestic Patent References:
| JPH02253210A | 1990-10-12 | |||
| JP2014085470A | 2014-05-12 | |||
| JP2018205494A | 2018-12-27 | |||
| JP2009237213A | 2009-10-15 | |||
| JP2012235540A | 2012-11-29 |
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