| 摘要 |
PROBLEM TO BE SOLVED: To prevent small drain holes of a drain perforated plate from being closed with a drain joint which is brought into elastic contact with a drain hole of a perforated plate drain inlet. SOLUTION: In a drainage connection structure A for a bathtub, a bathtub drain inlet (a) and the perforated plate drain inlet (b) of a bathtub placing type floor pan P are connected together by the elastic drain joint 3, the drain joint 3 is formed in such a required shape as to allow a change into such a shape as to be brought into elastic contact with a surface of the drain perforated plate 5 which is provided in the drain inlet (b), and the perforated plate 5 or the drain joint 3 is provided with a space forming means 7 for forming a space 17, which guides drainage to the drain holes 25, between the perforated plate 5 and the drain joint 3 which is brought into elastic contact with the perforated plate 5. COPYRIGHT: (C)2005,JPO&NCIPI
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