| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a DC electromagnet capable of deforming also in an axial direction of the electromagnet by providing a part which is apt to intentionally deform to a spacer inner-diameter side as a nonmagnetic spacer used to prevent a movable iron core and a fixed iron core of the DC electromagnet from coming into close contact with each other as well as optimize mutual end face shapes of both the iron cores. <P>SOLUTION: The DC electromagnet includes a main body 47a in a C shape with a proper width and a proper diameter by forming a cut opening part as a part of a peripheral surface; five first grooves 47b provided at least at opposite positions by forming arcuate narrow grooves in a substantially center part of the proper width to a proper length at equal intervals along a circumferential direction; second grooves 47c each formed from one end of the first groove 47b to the center of the main body 47a and continuing inward to the proper width; and tongue parts 47d each formed of the first and second grooves 47b, 47c. <P>COPYRIGHT: (C)2013,JPO&INPIT |
