| 摘要 |
PURPOSE: A manhole support and its manufacturing method is provided to manufacture the manhole support in an easy and rapid manner by welding the frame which is formed by bending a metal plate. CONSTITUTION: A manhole support(10) comprises frames(12a,12b) having protrusions(14) formed at inner side surfaces of frames, respectively, so as to mount a rainwater collector cover at the protrusions; and a connecting frame(16a) for connecting both sides of frames. A flange(13) is formed by bending a metal plate, and the protrusion of the frame is formed by bending the center of the metal plate into a square C-shape. The connecting frame is constituted by a flange which is formed by bending outwardly the upper end and the lower end of the metal plate in such a manner that the connecting frame has a height same as that of the frame. Each frame is arranged in parallel with each other in a manner that protrusions formed at inner side surfaces of frames face one another, and connecting frames are coupled to both ends of the frame through a welding process.
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