| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of a flexible drain for an eaves gutter, which makes rainwater smoothly flow down along an inner wall of an inner cylinder even in the case of the normal amount of rainwater, and which enhances water flowability. SOLUTION: In the inner cylinder 1, a flange 4 is formed at the upper end of a cylinder where an engaging screw part 3 is formed on an outer surface. In an outer cylinder 2, a flange 8 is formed at the upper edge of an cylinder where a fitting screw part 7 is formed on an inner surface. In the structure of the flexible drain for the eaves gutter, the inner cylinder 1 is inserted into an opening, which is formed in the bottom 9 of the eaves gutter, from above, and the outer cylinder 2 is fitted and screw-connected into the inner cylinder 1 from below, so that the bottom 9 of the eaves gutter can be attached and fixed in the state of being sandwiched between the flanges 4 and 8. A refuse-guard columnar body 5 is erected on the flange 4 of the inner cylinder 1. A rotatable blade 6, the rotational surface of which is perpendicular to an inner wall surface of the inner cylinder 1, is formed on a shaft body 10 which is formed in the state of being suspended onto the inner cylinder 1 from the columnar body 5. The rotatable blade 6 is rotated by the rainwater flowing down from the eaves gutter. COPYRIGHT: (C)2008,JPO&INPIT
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