| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a down pipe drain component which can reduce a flowing force of rainwater without storing it. <P>SOLUTION: A cylindrical down pipe drain component 1 is fitted to a discharge port 4b of a down pipe 4. A plurality of plate-like members 9 are provided inside the down pipe drain component 1. The respective plate-like members 9 are arranged side by side in a direction orthogonal to a flow direction of rainwater 11 and inclined with respect to the flow direction of the rainwater 11. When viewed from the flow direction of the rainwater 11, each plate-like member 9 partly overlaps with its adjacent plate-like members 9. When the rainwater 11 passes through the inside of the down pipe drain component 1, the rainwater 11 flows along the plurality of plate-like members 9 inclined with respect to its flow direction, and its flowing force is reduced. <P>COPYRIGHT: (C)2013,JPO&INPIT |
