| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an auxiliary device for removing a cable in a pipe, capable of achieving dissolution of fixing between a cable in an underground pipe and an inner surface of a pipe conduit, also mechanically in addition to jetting of high pressure water without requiring repetition thereof. <P>SOLUTION: A housing basket 11 assists in work of a cable-in-pipe removal system jetting high pressure water from an injection nozzle 101 to around a communication cable C in an underground pipe P. A tip side cylindrical part 12 formed with an outer diameter enabling it to be inserted into the underground pipe P and having an inner diameter into which the cable can be inserted and a rear side annular part are connected with each other by a plurality of coupling rods 14. In the tip side cylindrical part, an immovable part 21 to which the coupling rods are fixed and a slide contact rotation part 22 connected in a relatively rotatable manner are assembled. Inclined plates 25 receiving high pressure water are fixed at a plurality of positions on the inner surface of the slide contact rotation part, and sawtooth-shaped comminution teeth 22b are formed on the tip side of the slide contact rotation part 22. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
