| 摘要 |
PROBLEM TO BE SOLVED: To provide a drain pipe for a draining device including a washing machine, a wash stand, a sink, and a bathroom, the drain pipe preventing or reducing the occurrence etc. of backflow of drainage and bubbles, and noise caused by the drainage. SOLUTION: The drain pipe for disposing of drainage of the draining device including the washing machine, the wash stand, the sink, and the bathroom, has a self-sealing device 1 arranged in a channel thereof. The self-sealing device 1 is formed like an almost cylindrical shape, made of a flexible material, blocks a cylinder body by abutting both inner surfaces on each other at a location of the cylinder body. The self-sealing device is elastically deformed against pressure of fluid flowing in one direction of the cylinder body, and opens the interior of the cylinder body to allow the fluid to pass therein. On the other hand the self-sealing device maintains a closed state against the pressure of the fluid flowing in the other direction of the cylinder body, to thereby prevent the fluid from passing therein. COPYRIGHT: (C)2010,JPO&INPIT |
