| 摘要 |
PROBLEM TO BE SOLVED: To improve the work efficiency by providing one hand of the opposed parts of each roof provided on the topside of the box body with a roughly vertical projection, and providing the other with a cover to cover the projection. SOLUTION: Three boxes 1, 2, and 3 are installed in parallel, and space to arrange required electric facilities is made in its inside. Then, the sidewall on opposite side to the box 2 is attached to the box 1, and a roof 4 is attached to the box 1 with its cover part 11 positioned to cover the apex. Next, a roof 5 is attached to the box 2 with its cover part 8 positioned to cover the projection of the roof 4. In the same way, a roof 6 is attached to the box 3, and lastly a sidewall is attached to the box 3 so that the cover part may cover the projection 13 of the roof 6. As a result, the manhours can be reduced in assembly. |
