Title:
ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2022/097252
Kind Code:
A1
Abstract:
The present invention comprises a rotor (2) that performs rotary motion and a shaft (3) that linearly moves in the axial direction of the rotor (2) in accordance with the rotary motion of the rotor (2). The rotor (2) has: a cylindrical internal thread portion (2a) provided with a retaining portion (21) having a key portion (21a) protruding in the radial direction at an end portion and provided with an internal thread in the inner peripheral surface; and a cylindrical magnet portion (2b) arranged coaxially with the internal thread portion (2a) in the outer periphery of the internal thread portion (2a), provided with an engagement portion (22) to be engaged with the key portion (21a), and fastened to the internal thread portion (2a) at the engagement portion (22). The shaft (3) is provided with an external thread to be engaged with the internal thread provided to the internal thread portion (2a). A gap is formed between the outer peripheral surface of the internal thread portion (2a) and the inner peripheral surface of the magnet portion (2b).
Inventors:
KATO SHOTA (JP)
Application Number:
PCT/JP2020/041463
Publication Date:
May 12, 2022
Filing Date:
November 06, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F16H25/20
Foreign References:
| JPH04108367U | 1992-09-18 | |||
| JP2020143763A | 2020-09-10 | |||
| JP2006189071A | 2006-07-20 |
Attorney, Agent or Firm:
SANNO PATENT ATTORNEYS OFFICE (JP)
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