| 摘要 |
PROBLEM TO BE SOLVED: To achieve reduction in height and weight of a box section and simplification of piping step for a tub bottom discharge/suction metal piece which is collectively formed with a discharge outlet or a suction port. SOLUTION: A discharge section 180 and a suction section 190 are integrally formed on a pipe-fixing partition board 4 held between a floor body layer 3 and a tub bottom structure layer 5 so that they pierce the pipe-fixing partition board 4. The lower end of a box section 100 is joined with the upper face of the pipe-fixing partition board 4. The depth of the box section 100 reaches to the position of the pipe-fixing partition board 4, in other words, the position of the inside lower end of a metal piece attachment hole 5h formed in the tub bottom structure layer 5. Therefore, the box section 100 can be drastically reduced in height and weight. In addition, when tub water is drained and the inside of the box section 100 is cleaned, cleaning operation is facilitated because of its shallow depth. COPYRIGHT: (C)2008,JPO&INPIT
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