| 摘要 |
PROBLEM TO BE SOLVED: To unfailingly obtain flat magnetic attraction characteristics.SOLUTION: A first rod 42 made of a non-magnetic material is integrated with a second rod 45 which is made of a magnetic material and enters into a guide hole 401 as a plunger 41 moves toward the stator core 40 side. The second rod 45 is formed having a diameter smaller than the first rod 42 to avoid contact between the second rod 45 and a peripheral wall surface of the guide hole 401. |
