| 摘要 |
PROBLEM TO BE SOLVED: To provide a bath room capable of preventing the back-flow phenomenon of drain from the drain trap of a wash place to a water collecting part which may be generated when a large quantity of water overflows from a bath tub. SOLUTION: A waterproof pan 3 is provided under a bath tub 2, a drain trap 5 draining water in the bath tub outward is provided on the bottom part of the waterproof pan 3, a water-guiding part 31 is provided on the side part 3b of the waterproof pan, an entrance 9 is provided on one side of a wash place 7 adjacent to the waterproof pan 3 and constituted out of a different member, and a water collecting part 18 is provided on the lower frame 15a of the entrance 9 or in the vicinity of it. A drain pipe 28 is provided extending from the water collecting part 18 into the vicinity of the outside of the water- guiding part 31, and the end part on the waterproof pan 3 side of the drain pipe 28 is supported with a drain pipe supporting pipe 39 fitted to the water- guiding part of the waterproof pan 3.
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