CONTINUOUSLY LINING STRUCTURE OF INNER SURFACE OF BRANCH TUBE CONNECTING PART OF MAIN TUBE AND INNER SURFACE OF BRANCH TUBE AND METHOD THEREFOR

Japanese Patent JP3227587

B2

PURPOSE: To provide a continuously lining structure which has no peeling of resin-impregnated coating material and in which waterproofness of a branch tube connecting part of a main tube is sufficient and repairing of the branch tube can be simultaneously continuously conducted and a method therefor.
CONSTITUTION: A continuously lining structure comprises a branch tube connecting part of a main tube 1 covered on an inner surface with cured resin-impregnated sheet 4 in a cylindrical state in such a manner that an entire inner surface of the branch tube 3 is covered with a cured resin-impregnated tube 5 and one end of the tube 5 is watertightly connected to a peripheral edge of an opening 4a having substantially the same bore as that of the branch tube formed at the sheet 4. The structure can continuously simultaneously line by a lining method having the steps of introducing a sleeve of a lining unit to the branch tube connecting part of the main tube to expand and radially extend the sleeve by hydraulic pressure to bring the sheet wound on the sleeve into pressure contact with the inner surface of the connecting part, inversely inserting the resin-impregnated tube into the branch tube from a tube outlet of the sleeve by a hydraulic pressure to be brought into pressure contact with the inner surface of the branch tube, continuously simultaneously conducting, and curing the impregnated resins of the sheet and the tube.

Shigetoshi Otaki
Toshitaka Nakao
Yusuke Oketani
Yoshiaki Katayama

JP24072993A

November 12, 2001

August 31, 1993

Click for automatic bibliography generation  

Takiron Co., Ltd.

B29C63/36; F16L1/00; (IPC1-7): B29C63/36; F16L1/00

JP615738A

Hiroyuki Nakai

Previous Patent: 携帯型ストロー

Next Patent: PRINTED WIRING BOARD