JIG FOR GAS PIPE WORK

• Main Authors: MORITA NORIYUKI, KISHINO SOICHI, KINUGAWA MASAYA
• Format: Patent
• Language: English
• Published: 25.08.1998
• Edition: 6
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To enable a gas pipe to be repaired only by excavating the circumference of an execution spot by constituting a detachable fitting part to the circumferential face of the required spot of the gas pipe by means of magnets as the fixture of a bottomed bag made of a flexible film body as a main material and capable of seeing through. SOLUTION: The gasbag inserting spot of a gas pipe 9 is excavated and exposed, the gasbag is received in a bottomed bag 1 of flexible film body made of polyethylene capable of seeing through, the communication hole 4 of a fitting part 3 is let correspond to the gasbag inserting hole, and a fitting face 5 is stuck to the circumferential face 9a of a gas pipe. Belt-like magnets 10 of the circumferential edge parts 5a are magnetically fitted to the circumferential face of pipe 9a, so as to press seal members 6 against the circumferential face of pipe 9a. An arm is inserted from the operation hole 7 of the bag 1 so as to draw out the plug of the communication hole 4, and leakage of gas in the gas pipe 9 is blocked with seal material 8 between the arm and the operation hole 7. The gasbag is inserted into the gas pipe 9, expanded so as to intercept the gas pipe 9, gas in the bag 1 is released, and the jig for a gas pipe work is removed so as to begin a work. Hereby, only by exposing the circumference of the execution spot of the gas pipe, the gas pipe repairing work can be executed.