| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cable conveying and laying method capable of saving space in a culvert, capable of operating with another construction also, convenient also for changing the heaping up of cables even if there are differencies in height on a line stretching route, and capable of facilitating power supply to a driving device as well. SOLUTION: For conveying and laying a cable in a culvert rails 2 are provided in the culvert 1 along it, and driving devices 4 composed of magnetic belts 3 are provided at constant intervals of these rails 2. And a large number of truck 5 are put on these rails 2, and these truck 5 are connected with connecting rods 6, and a cable 9 to be stretched is put on. Holing machines 7 are put on a part of these truck 5, and a cable 1 is fed out or grasped freely. The truck 5 are moved by attracting the abovementioned connecting rods 6 by the magnetic forces of the driving devices 4, and pushing them out in the forward or backward directions.</p> |
