| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a filter structure having the long usable period.SOLUTION: A filter structure 10 includes: a hook body 11 which can be hooked on an upper surface 82 of an upper peripheral end of a drain part 81 of a catch basin 80; and a filter body 12 which is constituted by a metal gauze connected to the hook body 11, having a shape covering the drain part 81, and having a tilt part 14 tilted to a horizontal plane on a bottom surface 13 thereof on the whole surface. In the state that the filter structure 10 is installed in the catch basin 80, dirt 1 flowing in the drain part 81 together with drain is accumulated at a lower side of the bottom surface 13. When an accumulated amount of the dirt 1 is small, drainage in a part of the filter body 12 shown by an arrow of a broken-lined in the figure cannot be performed, but drainage shown by an arrow of a solid line in the figure, especially drainage in the most part of the bottom surface 13 can be performed. That is, a passage area of the drain is not rapidly reduced, and the filter structure 10 has the long usable period.</p> |
