| 摘要 |
<P>PROBLEM TO BE SOLVED: To more reliably ensure air tightness inside a water-proof pan by facilitating a drop of a projection on a back of a flange portion in a bathtub to an airtight member even if allowing bathtubs having various kinds of sizes to correspond to the same water-proof pans. <P>SOLUTION: The water-proof pan 2 disposed below the bathtub 1 includes a bottom part and a surrounding wall 22. The bathtub 1 includes: the flange 12; a wall panel mount 13, where a wall panel 60 for forming the wall portion of a bathroom is placed; a first projection 17 formed at a position corresponding to the surrounding wall 22 in the flange 12; and a second projection 19 formed on the back side of the wall panel mount 13 and outside the first projection 17 in the flange 12. At the upper end of the surrounding wall 22, the airtight member 40 compressed by the first projection 17 is disposed, the lower end of the second projection 19 is disposed above the lower end of the first projection 17 and is disposed above the upper edge of the surrounding wall 22. <P>COPYRIGHT: (C)2012,JPO&INPIT |
