| 摘要 |
PROBLEM TO BE SOLVED: To prevent an exhaust port of a wash place floor of a bathroom from getting easily slimy or dirty.SOLUTION: In a wash place floor provided with a wash place surface, a drainage recess 120 where a part of the wash place surface is recessed and an opening 130 for discharging water to a drain trap is formed, and a drainage cover 200 installed at an upper part of the drainage recess 120, being flush with the upper surface of the wash place floor, and formed by discharging the water on the wash place surface from a gap of the drainage recess 120 and the drainage cover 200 to the drainage recess 120, the drainage recess 120 has a drainage guide surface 140 inclined downwards toward an opening 130, a plurality of projections 142 are provided on one of the drainage guide surface 140 and the drainage cover 200, and recesses to be engaged with the projections 142 are provided on the other. |
