| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems that a bathroom space is oppressed by a conventional drain opening located on a washing place floor pan and that a housing space for a bathtub cover, etc., is constituted in such a way as to oppress the bathroom space. SOLUTION: A rim part on the backside of a bathtub is recessed in the direction of a washing place, and a drain opening is provided there. In addition, the recessed space is used for housing a bathtub cover and providing a housing space.
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