To obtain a box for a board device capable of properly securing dimensional precision and mechanical strength without using a welding structure.
The casing for the board device is composed of: a floor plate body 6H; an upper face 6B that is bent and formed to the floor plate body 6H and extends in parallel with the floor plate body 6H; a side plate body 8H; and a board internal side face 8B that is bent and formed to the side plate body 8H and extends in parallel with the side plate body 8H. A corner connector 7, which is composed of a first connecting part 7X engaged between the floor plate body 6H and the upper face 6B, and a second connecting part 7Y engaged between the side plate body 8H and the board internal side face 8B, is provided, and the floor plate body 6H and the side plate body 8H are coupled by using the corner connector 7.
Masuo Oiwa
Toshihide Kodama
Keigo Murakami