| 摘要 |
PROBLEM TO BE SOLVED: To provide a drainage facility wherein a mechanism for storing water in a drainage container is comparatively simple and dust or the like hardly sticks thereto. SOLUTION: One end side of a pipe 11 of a water level regulator 10 is turnably connected to an outflow port 3a of the drainage container 3, and the other end side of the pipe 11 is inserted in a container 12. One end side of the pipe 11 is almost horizontal, and the other end side is perpendicular to the one end side. When the other end side of the pipe 11 is in a water storing attitude of extending upward, water is stored in the pipe 11 up to the other end (the upper end). Water is thereby stored in the drainage container 3 communicating with the pipe 11, up to the same height as the other end of the pipe 11. COPYRIGHT: (C)2008,JPO&INPIT
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