Title:
ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2024/004419
Kind Code:
A1
Abstract:
This actuator has a stator, a moveable shaft that is inserted into the stator and reciprocates in the axial direction thereof, and a moveable element that is integrated with the moveable shaft inside the stator. The stator has a stator body, an outside yoke that accommodates the stator body therein, and first and second stoppers that close the openings of the outside yoke. The stator body has an inside yoke that surrounds the outer circumference of an axial center section of the moveable shaft, permanent magnets mounted on the outer circumference of the inside yoke, a stator frame that has bobbins on both sides of the permanent magnets and supports the bobbins, and a coil wound around the bobbins. The first stopper has a first protruding part in the center and has a first hole part through which the moveable shaft passes in the center of the first protruding part. The second stopper has a second protruding part in the center and has a second hole part through which the moveable shaft passes in the center. The protruding parts are fitted to both axial end parts of the stator frame. Bearings for reciprocatably supporting the moveable shaft are mounted in the holes.
More Like This:
| WO/2018/078847 | ROTARY SOLENOID |
| WO/2017/088421 | LINEAR VIBRATION MOTOR |
| WO/2013/029942 | MAGNETIC ACTUATOR AND METHOD FOR OPERATING SAME |
Inventors:
SUNAGAWA KEIZO (JP)
Application Number:
PCT/JP2023/018424
Publication Date:
January 04, 2024
Filing Date:
May 17, 2023
Export Citation:
Assignee:
IWAKI CO LTD (JP)
International Classes:
H02K33/14
Foreign References:
| JP2006081243A | 2006-03-23 | |||
| JPH10127033A | 1998-05-15 |
Attorney, Agent or Firm:
KISARAGI ASSOCIATES (JP)
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