| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cable tray height of which can be adjusted by using double-layered side surface construction members, whose inside protrusions are covered which facilitates additional installation of a cable and which protects cable covering from damages. SOLUTION: A cable tray 7 consists of a lower part construction member 8, side surface construction members 9 and 10 fixed to both sides, and cables are laid inside the tray 7. The side surface construction members 9 and 10 are double-layered. Vertical guide grooves 11 and a plurality of key-shaped fixing grooves 12 crossing the vertical guide grooves 11 are formed in both layers of each side surface construction member. Further, both layers can slide vertically along the grooves relative to each other and fixed to each other with the fixing grooves by bolts, etc.</p> |
