The registration mannered null installation canal orifice

摘要

PROBLEM TO BE SOLVED: To provide a positioning method capable of accurately sticking a water cut-off member and the other pipeline reclaiming sheet to the periphery of an installing pipe port in a main pipe.;SOLUTION: This positioning method for the pipeline reclaiming sheet comprises forming a window hole 76 having the almost same diameter as the installing pipe port 12 in the central vicinity of a pressing plate 51 having proper curving elasticity, and placing the pipeline reclaiming sheet (the water cut-off member 4) prearranged with an opening part 43 on the pressing plate 51 so that the opening part 43 coincides with the window hole 76. When carrying the pressing plate 51 in the main pipe 1 by being held on a carriage 52, while confirming a position of the installing pipe port 12 via the window hole 76 by a camera 77 arranged on the reverse side of the pressing plate 52, the carriage 52 is guided so that the pressing plate 51 is straightly opposed to the installing pipe port 12.;COPYRIGHT: (C)2003,JPO