| 摘要 |
<p>PURPOSE:To surely cut-off water at the connecting part of an access pipe to a main pipe by a method wherein lining material is surely brought into close contact with the inner surface of the access pipe. CONSTITUTION:A lining device 1, in which lining material 28 is housed, is moved to the position of an access pipe 3 by guiding the lining device 1 with freely directional rollers 21. Under the condition that the flange part of the lining material 28 is registered to the connecting part of the access pipe to a main pipe, by feeding pressurized air in the bellows 27 of lateral guide parts 7a and 7b so as to abut freely directional rollers 26 against the main pipe 2, the lining device 1 is fixed. By feeding pressurized air in the bellows 23 of a lower guide part 6 in order to raise a housing tube 8, the flange of the lining material 28 is abutted against the connecting part of the access pipe to the main pipe. By charging hot water in the housing tube 8, the lining material 28 is inversely inserted in the access pipe 3 by means of an inner tube 11 and then hardened by heating. After that, the inner tube 11 is drawn in the housing tube 8 and finally the housing tube 8 is lowered.</p> |
