| 摘要 |
PROBLEM TO BE SOLVED: To provide a washing space floor suitable for a barrier-free type bathroom module, for example, and allowing use of a chair in a constantly stable condition. SOLUTION: This device is provided with a drain port 3 formed close to a side 1a facing a bathtub, roughly horizontal peripheral parts formed in strips of a specified width along the other three sides than the side 1a facing the bathtub, a center piece gradient part 4 having a specified one-side gradient toward the drain port 2 along a pair of mutually facing sides 1c, 1d of the three sides, and a pair of connection gradient parts 5 formed as thin and long strips between the horizontal peripheral part along the side 1c, 1d and the center piece gradient part 4. |
