| 摘要 |
PROBLEM TO BE SOLVED: To provide a means for easily constructing a drainage structure in a waterproof floor formed by arranging a raising material on a waterproof floor material. SOLUTION: A cutout region R omitting the raising material 20 and a floor finishing material 30 is formed in a position facing a drain port 13, of the waterproof floor material 10, and a drain passage forming cylindrical member 50 is fittingly mounted in the cutout region R. The drain passage forming cylindrical member 50 is provided with a perforated plate receiving part at the upper end, and a support step part of a hair catcher 51 in an intermediate height position inside. Since a drain passage can be secured only by mounting the drain passage forming cylindrical member 50 fittingly to the cutout region R, work is simple and the number of members is small. Since the support position of the hair catcher 51 is set into the intermediate height position, mounting/removing work is easy. Drainage efficiency is good because an upper end opening 50a and the drain port 13 are arranged almost coaxially, and a fine floor face with no projecting part can be constructed because the perforated plate 52 is almost flush with the floor finishing material 30. COPYRIGHT: (C)2005,JPO&NCIPI
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