| 摘要 |
PURPOSE:To facilitate manufacture, by arranging a main duct, a cover, and partition walls for dividing a wiring space into small wiring spaces in the width direction, and by providing the main duct with a flange section. CONSTITUTION:A floor duct 1 is provided with a main duct 2, a cover 3, and two partition walls 4. The main duct 2 is formed as the long groove-formed object of a flattened U-type cross-sectional-area, and the internal side is set to be a wiring space 5. At the opening edges of the main duct 2, flange sections 21 extended to an external side are formed. The cover 3 is caulking-stopped by both the end sections arranged respectively at the respective flange sections 21 of the main duct 2 through the upper side to the lower side and placed between the upper and lower sections. In this case, when concrete is cast in, then a structure for uniforming the concrete easily and for facilitating manufacture is composed. |
