| 摘要 |
PURPOSE:To easily insert a cable through a bend part or the like by attaching a wire rod, whose rigidity is lower than that of the cable, to the front end part of the cable. CONSTITUTION:A wire rod 3 whose rigidity is lower than that of a cable 2 is attached to the front end part of the cable 2 which is press-sent by pressure liquid. When this front end part strikes against the bend part of a tube wall, the cable following the wire rod easily passes the bend part because the wire rod 3 whose rigidity is lower in the front end part precedes the bend of a duct 1, and the part of the cable 2 which first passes through the bend part functions ad the guide line to help the following part of the cable to pass through, and all of the cable is inserted through. |
