| 摘要 |
PROBLEM TO BE SOLVED: To provide a drain device of a bathroom unit capable of minimizing operational failure of a float valve, even if a cleaning frequency of the float valve is reduced. SOLUTION: A bathtub pan drain port is arranged so as to face a position dislocated to one from the center line of the float valve. The lower end of the bathtub pan drain port is projected downward in a lip shape from a peripheral bathtub pan bottom surface. When the bathtub pan drain port is put in a closing state by receiving a part of the floated float valve by the lip-shaped projecting part, a projecting part for forming clearance between a residual part of the float valve and the bathtub pan bottom surface, is arranged in at least any one of an upper surface of the float valve and a bottom surface of a bathtub pan. COPYRIGHT: (C)2005,JPO&NCIPI
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