| 摘要 |
PURPOSE:To repair and change back by a remote control a pipe body inside wall which a man cannot approach, by inserting a repairing device provided with a working apparatus having various functions, which runs along a guide rail extended between the upper and lower bases, into a damaged pipe by a lifting rope. CONSTITUTION:A repairing device 13 is constituted of a guide rail 15 which is extended between moving bases 14a, 14b of both upper and lower ends and extends in the axial direction of a pipe inside wall 8a of a main pipe 8, and various kinds of machining apparatuses 16 running along the rail 15, and is inserted into the main pipe 8 by a rope 17. Also, the circumferential edge parts of the bases 14a, 14b are provided with a theta caster 18 for rotating the device 13 in the circumferential direction of the main pipe 8, a Z caster 19 for making the device 13 ascend and descend in the upper and lower directions of the main pipe 8, and a base fixing means M for fixing the device 13 into the main pipe 8 by pressing the casters 18, 19 against the pipe body inside wall 8a. |
