| 摘要 |
PROBLEM TO BE SOLVED: To materialize prevention and early detection of a fraudulent act by facilitating discovery of a board case being unsealed.SOLUTION: A housing space 130 capable of housing a board inside is sectionally formed using a base body 110 and a cover member 120 which is freely openably/closeably installed relative to the base body. In the base body, screw holes are provided on the outer side of the housing space. In the cover member, there are provided: a projection part 206 that protrudes in a direction receding from the housing space from a partition part 120d for sectionally forming the housing space; an extended wall part 208 that is arranged opposingly to the screw holes, with the cover member closed relative to the base body, that is extended in a direction opposing to the screw holes as well as being formed continuously to the projection part, and that is sealed by sealing means relative to the screw holes. In the extended wall part, a raised part 220 is formed on a side face 208a of the extended wall part continuous to the projection part. |
