| 摘要 |
PROBLEM TO BE SOLVED: To provide a tubular body for a building, capable of simplifying a fitting structure for fitting to a wall surface or a cross-piece.SOLUTION: A tubular body for a building is formed by sheet metal working of a first member 10 including a mounting plate part 11 and an erected plate part 12 and a second member 20 including a front plate part 21, side plate parts 22, and joining part 23. The mounting plate part 11 of the first member 10 is mounted on a wall surface 40 and the erected plate part 12 is joined to the side plate parts 22, thereby making the first member 10 and the second member 20 tubular. A fitting structure can be simplified because machine screws 43 for mounting the first member 10 on the wall surface 40 can be hidden by the second member 20 and it is unnecessary to prepare any coupler. |
