| 摘要 |
PROBLEM TO BE SOLVED: To reduce operation failure of a solenoid.SOLUTION: A solenoid 100 comprises: a coil 11 that generates a magnetic force when a current flows in it; a cylindrical stator core 12 provided inside the coil 11 and magnetized by the magnetic force of the coil 11; a plunger 17 freely movably accommodated in a plunger chamber 19 formed inside the stator core 12 and moving toward an attracting surface 19A in the plunger 19 by the magnetic force of the coil 11;a shaft 16 provided so as to be movable in the axial direction together with the plunger 17; and a filter 18 provided inside the stator core 12. The filter 18 is provided on the attracting part side as viewed from the plunger 17, and within an axial range where the coil 11 is provided.SELECTED DRAWING: Figure 1 |
