| 摘要 |
PURPOSE: A shutter barrier for a distribution board is provided to prevent the malfunction of a shutter plate by changing the open and close operation of the shutter plate with a circulation type. CONSTITUTION: A shutter frame(12) forms an opening part(14) for insetting a connection unit. An upper and a lower shutter plate(16,18) are rotated and connected to the shutter frame. A hinge part(22b,24b) is formed in the upper end of the shutter plate and the lower shutter plate respectively. The hinge part is connected to a connecting part(26b,28b) by using a hinge screw(30a,32a). A pinhole(34,36) is formed in the outer surface of the hinge part. |
