| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a traction implement for the laying of a cable, by which the cable can pulled surely, even when a conduit line in which the cable is laid is curved when a traction wire is connected to the traction implement connected to the tip part of the cable in order to receive negative pressure, so as to pull the cable in a cable-laying construction method, in which the cable is pulled into the conduit line so as to be laid by using negative pressure. SOLUTION: In the traction implement for the laying of the cable, the negative pressure which is generated inside an existing conduit line 1 is received, and when the cable C is laid inside the existing conduit line 1, a traction force is generated, and the cable C is pulled into the existing conduit line 1. The traction implement is provided with guide pigs 12, which are connected to both ends of a traction pig 11 whose outside diameter is slightly smaller than or nearly identical to the diameter of the existing conduit line 1, and which receives negative pressure to generate the traction force. The tip of the cable C is connected to the guide pig 12 on one side, and a traction wire 5 is connected to the guide pig 12 on the other side.</p> |
