| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide cable troughs whose connection direction can be varied freely and, furthermore, into which earth and sand do not penetrate through the connection parts. SOLUTION: Protruding connecting parts 6 are provided on one of the end parts of a cable trough and are mated with recessed connected parts 7 which are provided on the other end part of the adjacent cable trough, to connect the cable troughs to each other in a longitudinal direction. At least one of contact planes between the connecting part 6 and the connected part 7 which are provided on bodies 1 is an inclined plane. With this constitution, the connection direction can be varied vertically and horizontally, while the penetration of earth and sand is avoided. The connecting parts 6 and the connected parts 7 are provided on covers 2 as well.</p> |
