| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drainage structure which can securely stop water in a connection part between a drainage pipe and a trap lid with a packing and is hard to leak water even when there is a manufacturing error, a construction error or the like of a floor pan or a bathtub. Ž<P>SOLUTION: The drainage structure is provided with the drainage pipe 2 attached to the bathtub 1, a trap 4 attached to the floor pan 3, and the trap lid 5 attached to the trap 4. A female screw 28 is formed on the inner peripheral surface of the drainage pipe 2, and a flange 26 is provided to and projected from the outer periphery of the lower end part of the drainage pipe 2. A connection cylindrical part 22 projected upward is formed on the trap lid 5, and a male screw 23 is formed on the outer periphery of the connection cylindrical part 22. The drainage pipe 2 is attached to the bathtub 1 so that it can move up and down and rotate, and the trap lid 5 is attached to the trap 4 through the medium of a surrounding O-ring 21 so that it can freely move up and down. Then, the drainage pipe 2 is connected to the connection cylindrical part 22 by screwing, and the packing 36 is compressed between the flange 26 and the trap lid 5. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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