| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate repairing work and complete the work in a short time. SOLUTION: In this repair machine, which involves traveling rollers 8, 12, and a driving wheel 13, a cylindrical spacer 16 of extendable type which carries repairing materials is formed at a machine body 6 capable of traveling in a pipe 2, and a movable pressure member 18 is disposed so as to be movable in the inside of the spacer 16 and in the radial direction. A shape memory spring to which elasticity for pressing the spacer 16 is applied previously through the movable pressure member 18 is provided at the inside of the movable pressure member 18 and is heated by a heater 5 When the heater 7. When the heater 7 is turned on so as to heat the shape memory spring to be extended at a repairing position, the movable pressure member 18 presses the spacer 16 and bring a repairing sheet into press-contact with the repairing position to press the repairing sheet against the inner surface of the pipe for bonding. It is thus possible to conduct repairing work in the pipe quickly and easily by switching a power source from the outside, and simplify a mechanism with the shape memory spring, so as to make it difficult to deteriorate components due to heat inside the spacer.</p> |
