| 摘要 |
<p>PROBLEM TO BE SOLVED: To reliably repair a branch pipe part on a main pipe side by increasing the repair area of the main pipe side when repairing the branch pipe part. SOLUTION: An upright part of a hat type first repairing member of hat shape having an edge (a flange) part with a top surface removed therefrom is fitted to a projecting part of a rubber cylindrical body of a repairing tool of an inner surface of a pipe, the edge (the flange) part of the hat type first repairing member is fitted to the cylindrical body part of the rubber cylindrical body, and a flat type second repairing member of the flat shape with a circular window formed on the center part is fitted to the cylindrical body part of the rubber cylindrical body on the upper or lower surface side of the hat type first repairing member.</p> |
