| 摘要 |
An electromagnetic actuator 1a is provided with: a plurality of balls 30 and 31, which are disposed in an opening of a horizontal hole 144 penetrating a shaft 14 in the diameter direction; an elastic body 32, which is provided between the balls 30 and 31, and presses the balls 30 and 31 outward; a first groove section 29, which is formed on the inner wall side of a hollow section of a housing 13, and which the balls 30 and 31 enter by receiving the pressing of the elastic body 32 when the shaft 14 is at an OFF position (first position); and a second groove section 27, which is formed on the inner wall side of the hollow section of the housing 13 at an interval in the axis direction from the first groove section 29, and which the balls 30 and 31 enter by receiving the pressing of the elastic body 32 when the shaft 14 is at an ON position (second position). |
