DRAINAGE MEMBER AND RAIN GUTTER

To exert excellent siphon performance in a simple structure with low cost and excellent workability.SOLUTION: A drainage member is provided with a lid member 21 arranged at a position separated upward from a bottom surface 10a inside of an eaves gutter 10 and forming an inflow opening 2A for allowing rain water in the eaves gutter 10 to flow into a shoot between the bottom surface 10a and itself. The lid member 21 is arranged so as to block the opening of a shoot part 20 viewed from a vertical direction. A projection area of the lid member 21 to a surface orthogonal to the vertical direction is set to be larger than the projection area of the opening of the shoot part 20. The lid member 21 is provided at a position of a height H which is 10-50 mm upward from the bottom surface 10a.SELECTED DRAWING: Figure 5 【課題】コストを抑え、作業性に優れた簡単な構造で、優れたサイフォン性能を発揮することができる。【解決手段】軒樋１０の内側で、底面１０ａから上方に離間した位置に設置されるとともに、底面１０ａとの間に軒樋１０内の雨水を落し口へ流入させる流入開口２Ａを形成する蓋部材２１を有し、蓋部材２１は、鉛直方向から見て落し口部２０の開口を塞ぐように配置され、鉛直方向に直交する面に対する蓋部材２１の投影面積が落し口部２０の開口の投影面積より大きく設定され、底面１０ａから上方に１０～５０ｍｍの高さＨの位置に設けられた構成の排水部材を提供する。【選択図】図５