| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a plunger type solenoid, in which a coming-off prevention structure is provided in a bobbin, and the suction force is increased by the coming-off prevention structure. <P>SOLUTION: The plunger type solenoid has: a cylindrical bobbin 11 with a coil 10 wound around it; a yoke 12 and a stator core 13 constituting a magnetic circuit; a plunger 14 put in a hollow part of the bobbin 11; and a cylindrical bearing 15a put in the hollow part of the bobbin 11, but located outside and fit on the periphery of an axial direction intermediate part 14a of the plunger 14. The plunger 14 has a leading end 14b located in the hollow part of the bobbin 11 and an external dimension enlarged part 14c which is enlarged in external dimension in a direction orthogonal to the axial direction in comparison to that of the axial direction intermediate part 14a. The external dimension enlarged part 14c and bearing 15a constitute a plunger coming-off prevention structure for preventing the plunger 14 from coming off from the bobbin 11. <P>COPYRIGHT: (C)2012,JPO&INPIT |
