| 摘要 |
PROBLEM TO BE SOLVED: To improve the execution property by arranging a thick plate panel unit having locking grooves parallel to four sides on a floor in the longitudinal and transverse directions at regular intervals, and connecting each panel unit by a plate-shaped connection pieces to form a wiring space below the floor. SOLUTION: Locking grooves 10 parallel to four sides are provided on an upper surface side of a panel unit 1 made of fiber-reinforced cement, etc., and a peripheral part 1b is formed lower than a center part 1a by the thickness of a lid. Notches 12 are formed on a back side of the panel 1 in a checkered manner to improve the fitting to the floor surface. The panel unit 1 is arranged on the floor surface with equal intervals, locking leg pieces 21, 31 and stopper pieces 23, 33 of a first rectangular lid unit 2 and a second rectangular lid unit 3 made of stainless steel sheet, etc., are attached to the locking grooves 10 of the panel 1 so as to be connected to each other. A wiring space is formed between the panel units 1, and the upper surface of the connected panel unit 1 is aligned with each other. The positional deviation and play of the panel unit 1 can be prevented thereby. |
