| 摘要 |
<P>PROBLEM TO BE SOLVED: To further reliably ensure air tightness inside a water-proof pan by facilitating the drop of a projection on the back side of a flange of a bathtub perpendicular to an airtight member. <P>SOLUTION: The bathtub 1 includes: a flange 12 formed while projecting at an outward side from an upper end edge of an inner tub; and a projection 17 formed while projecting downward from the back side of the flange 12. The water-proof pan 2 disposed at a lower side of the bathtub 1 includes a surrounding wall 22 rising upward from the peripheral edge of a bottom. At the upper edge 22a of the surrounding wall 22, the airtight member 40, and a guide 5 including a guide surface 5a formed at a position higher than that of the airtight member 40 are disposed. The guide 5 controls drop of the projection 17 of the bathtub 1 placed on the guide 5 from a guide surface 5a when the bathtub 1 is installed in the water-proof pan 2, and guides the projection 17 to a prescribed position on the upper surface of the airtight member 40 when the moved bathtub 1 reaches a prescribed installation position. <P>COPYRIGHT: (C)2012,JPO&INPIT |
