| 摘要 |
PROBLEM TO BE SOLVED: To provide a protective duct for wiring or piping materials, which can prevent its fixing part from deformation and fix stably disposed elements, wiring appliances and wiring and piping materials therein. SOLUTION: A pair of protruding stripes 14, extended in the longitudinal direction of a protective duct 10, are stood with a prescribed spacing on a bottom wall 12 of the protective duct 10. Both the protruding stripes 14 have facing planes, facing continuously each other along an extending direction thereof, and base ends of the protruding stripes 14 are connected to each other with the bottom wall 12. A connecting wall 16, with which both the facing planes are connected to each other, is formed between approximately middle parts of both the facing planes. Guide parts 14a, which guide a fixing screw 17 toward the connection wall 16, are formed on both the protruding stripes 14 at positions on the tip sides of the connection wall 16. The fixing screw 17 is forcibly screwed between the protruding stripes 14, made to pierce through the connection wall 16, and are screwed into the bottom wall 12 to fix a box 20 to a duct main part 11. |
