| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a low cost inner face coating-sealing device for repairing and sealing a long-sized or a plurality of water leakage portions inside a conduit, and can be easily transferred into the conduit from above the ground, furthermore and easily installed without need of a high technology of welding inside the conduit or the like. <P>SOLUTION: An inner face coating-sealing device 3 of the conduit, coating and sealing an inner periphery of an existing conduit by coating, comprises a flexible water sealing cylindrical member 4 arranged in the inner periphery of the conduit, two sealing flexible couplings 5 process in both ends of the flexible sealing cylindrical member by being independently fixed in inner peripheries of both ends of the flexible sealing cylindrical member with expansion bands and a pressure resistance cylindrical member 6 covering a portion of the inner periphery of the flexible sealing cylindrical member between the two sealing flexible couplings. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
