| 摘要 |
PROBLEM TO BE SOLVED: To carry out a connection operation with the same duct connecting members by forming a connecting part freely to connect even if a cross section of each duct whose vertical and horizontal lengths in each cross section are different from each other is faced to the vertical or the horizontal direction. SOLUTION: A duct connecting member 2 is branched as two branch bodies 5 into an axial direction and a parallel direction. In opposing side pieces 6 of the branch bodies 5, parts which are not overlapped with each other are formed in opposing directions. Namely, there is a part to which a recessed part 6b of one side piece 6 is opposed, in a projection piece part 6a disposed on the other side piece 6 in opposing side pieces. In opposing side pieces 6, the other side piece 6 is not overlapped in the projection piece part 6a of one side piece 6. When a duct disposed along a wall surface is connected, a plurality of connecting parts disposed on a duct connecting member 2 are connected by a common duct connecting part member 2 even in the every cases where a cross section of each duct is faced to a vertical direction or a horizontal direction.
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