| 摘要 |
PURPOSE: A molding apparatus for a manhole with a cutoff pipe is provided to simply and accurately change the center according to the size of cutoff pipe. CONSTITUTION: A manhole molding apparatus(100) comprises a center shift guide member(200) which is composed of a horizontal and a vertical bar(204,202) and installed on the other end of a balance case(114), a center supporter(230) which is installed long on the central rear side of the center shift guide member, cutoff pipe supporters(240) which are installed in parallel, a cover plate which is covered on the end of a pipe fixture in order to prevent the leakage of concrete mortar, and an outer and an inner center jig(250,260) which restricts the positions of the cutoff pipe supporters supporting the inner periphery of a cutoff pipe. |
