Title:
VIBRATION TYPE DRIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/008114
Kind Code:
A2
Abstract:
A vibration type driving device includes a vibrator configured to make an elliptic motion of a contact portion by combining vibrations in different vibration modes, and a driven body configured to be rotated relative to the vibrator by the elliptic motion while being in contact with the contact portion. A contact pressure of the contact portion with the driven body is lower on a radial inner side than on a radial outer side in a radial direction of the rotation.
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Inventors:
KOJIMA, Nobuyuki (C/O CANON KABUSHIKI KAISHA, 30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, 14685, JP)
Application Number:
JP2011/003810
Publication Date:
January 19, 2012
Filing Date:
July 04, 2011
Export Citation:
Assignee:
CANON KABUSHIKI KAISHA (30-2, Shimomaruko 3-chome Ohta-k, Tokyo 01, 14685, JP)
KOJIMA, Nobuyuki (C/O CANON KABUSHIKI KAISHA, 30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, 14685, JP)
KOJIMA, Nobuyuki (C/O CANON KABUSHIKI KAISHA, 30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, 14685, JP)
International Classes:
H02N2/10
Attorney, Agent or Firm:
ABE, Takuma et al. (C/O CANON KABUSHIKI KAISHA, 30-2 Shimomaruko 3-chome, Ohta-k, Tokyo 01, 14685, JP)
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Claims: