Title:
VIBRATION MOTOR, DRIVE DEVICE, LENS DEVICE, IMAGING DEVICE, AND FRICTION MEMBER MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/014133
Kind Code:
A1
Abstract:
[Problem] To provide a vibration motor that can be reduced in variation of a natural vibration frequency due to processing. [Solution] A vibration motor (110) has a vibrating body (103) and a friction member (102) with which the vibrating body is made friction contact. The vibrating body and the friction member can relatively move in a linear manner. The friction member has a first surface facing the vibrating body and a second surface on the opposite side to the vibrating body. The first surface has a contact surface that makes contact with the vibrating body and a non-contact surface that does not make contact with the vibrating body. The second surface is formed with an uneven shape. When a direction in which the vibrating body and the friction member relatively move is defined as a first direction, a direction in which the vibrating body and the friction member touch each other as a second direction, and a direction orthogonal to the first direction and the second direction as a third direction, the friction member is configured so that the contact surface is higher in the second direction than the non-contact surface and the width of the contact surface is shorter in the third direction than the maximum width of the friction member.
Inventors:
ISHIKAWA TOMONORI (JP)
Application Number:
PCT/JP2023/018936
Publication Date:
January 18, 2024
Filing Date:
May 22, 2023
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
H02N2/04; G02B7/02
Foreign References:
| JP2022057781A | 2022-04-11 | |||
| JP2012100483A | 2012-05-24 | |||
| JP2020079435A | 2020-05-28 |
Attorney, Agent or Firm:
FUJIMOTO Ryosuke (JP)
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