SOLENOID OPERATION DEVICE

摘要

PROBLEM TO BE SOLVED: To improve safety in check and maintenance of a solenoid operation device and reduce the number of components thereof. SOLUTION: The operation device comprises an electromagnet 14 having a movable iron core and a fixed iron core disposed oppositely to each other and an electromagnetic coil separating or contacting the movable and fixed iron cores from or with each other in response to electromagnetic force; a capacitor 16 storing power to energize the coil; a control board 18 controlling an exciting direction of a current supplied to the coil from the capacitor 16 in response to a closing demand or an opening demand to a switch; a shaft coupled to the movable iron core and transferring driving force accompanying magnetic force generated from the electromagnet 14; an interlock rod 46 disposed so as to be raised/lowered freely; and an interlock switch 42 disposed by being pressed to the upper part of the rod 46 and having a contact to open/close in response to raising/lowering operations of the rod 46. The switch 42 forcibly shuts down an input of the closing demand to the board 18, when the interlock rod 46 makes a rising movement. COPYRIGHT: (C)2006,JPO&NCIPI