Japan, March 5 -- NACHI FUJIKOSHI CORP has got intellectual property rights for 'ELECTROMAGNETIC ACTUATOR.' Other related details are as follows:
Application Number: JP,2022-006358
Category (FI): H01F7/16@D,H01F7/16@M,F16K31/06,305@A,H01F7/16@F,H01F7/16@E
Stage: PROBLEM TO BE SOLVED: To provide an electromagnetic actuator capable of preventing coaxial alignment of a shaft in a shaft press-fitting and a body fastening, and suppressing a suction force deterioration and a hysteresis deterioration caused by an increase in friction resistance.SOLUTION: A construction of an electromagnetic actuator comprises: a cylindrical bottomed body; a coil housed in the body; a core attached to an open of the body; a shaft press-fitted to the body and the core; a plunger that slides the shaft as an axis; and a pusher that is pressed by the plunger. The core includes: a cylinder part that plays a role of a fixed iron core; a concave part constructing a volume variation chamber in an open end of the cylinder part; a pusher guide that is arranged in an inner part of the cylinder part; a partition wall that separates the concave part and the pusher guide; a shaft press-fitting hole which is formed at a center of the partition wall and into which the shaft is press-fitted; and a pusher insertion hole which is formed in the circumference of the shaft press-fitting hole and into which a leg of the pusher is inserted. The pusher includes a projection for sliding the inner wall of the pusher guide.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: Jan. 19, 2022
Publication Date: July 31, 2023
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
