| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem in which, when a part to be inserted and connected to a drain pipe is thickened, an increased pipe bottom difference in level deteriorates drainage characteristics. SOLUTION: This drainage pipe joint 10 comprises a thin stainless-made circular pipe 11 having a flange part 11b extended outward from the periphery of one end of a main body 11a, and vinyl chloride-made circular pipes 12 and 13 mutually fixed while protruding the main body 11a axially from the opening inner side thereof and axially nipping the flange part 11b. The outer circumferential surfaces of the resin-made circular pipes 12 and 13 are substantially flush with each other, and the inner circumferential surfaces of the first resin-made circular pipe 12 and the stainless-made circular pipe 11 are substantially flush with each other. Therefore, a resin-made drain pipe can be extended while reducing the pipe bottom difference in level. COPYRIGHT: (C)2008,JPO&INPIT
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