| 摘要 |
PURPOSE:To obtain a shutter irrespective of the structure of a switch by pulling out a pulling-out switch which is removed from the switchboard and operating the shutter to screen the charge section of the primary interruptor of the switchboard which interlocks with this. CONSTITUTION:Only when the fixed insulating plate 4 on the surface of the switchboard 2 and the hole 6a of the shutter 6 match, the interruptor contactor 5 is actuated and coupled with the contactor 3. The narrow rod-shaped or plate-shaped flexible member 8 is supported by the support stand 9 and inserted into the guide member 11 to convert the horizontal movement of the flexible member 8 into the upward and downward movement through the spring 10 between the fixed washer 8a and the support stand 9. When the pulling-out swtich 1 is located at the interruption position, the shutter 6 falls and the holes 4a and 6a do not match. Thus, the conductor is screened. When the switch 1 is pushed toward the switchboard 2, the shutter 6 is pushed up by the flexible member 8, the holes 4a and 6a match, and the interruptor contactor 5 is coupled with conductor. The main circuit is connected and switchboard enters the operational state. |
