| 摘要 |
<p>PROBLEM TO BE SOLVED: To reliably prevent a live line inserted to a package from being pulled out. SOLUTION: A solenoid coil 24 is not conductive when an power source device is turned off, and a movable iron core 26 of the solenoid coil 24 is retreated from the side of a package 8 together with a movable part 18 by an urging force of a spring (not shown). Thus, a projection part 14 on the package 8 does not come into contact with the movable part 18, so that the package 8 inserted can be freely pulled out. A voltage is applied on the solenoid coil 24 through a wire 30 when a power source device is turned on, and the movable iron core 26 projects to a side of the package 8 together with the movable part 18 against the spring. Therefore, if the package 8 mounted on a device main body 4 is pulled out, since the side part at a counter side to a connector 6 of a projection part 14 comes into contact with the movable part 18, the package 8 is prevented from being pulled out. Furthermore, if the package 8 is to be mount the device main body 4 from the outside the device main body 4, since the side part at a counter side to the projection part 14 is brought into contact with the movable part 18, the package 8 is not inserted.</p> |
