DRAINAGE DEVICE

• Main Authors: ISHII SHOICHI, NAGAMORI TADASHI, HORIGUCHI SHUNSUKE, MATSUKAWA RYUICHIRO, HONDA HIDENORI, KANZO SHINICHI, MITAMURA NOBUHIKO, WATANABE NAOHIRO
• Format: Patent
• Language: English; Japanese
• Published: 29.03.2018
• Subjects: BUILDING; FIXED CONSTRUCTIONS; GUTTERS; ROOF COVERINGS; ROOF-WORKING TOOLS; SKY-LIGHTS

PROBLEM TO BE SOLVED: To enhance drainage capacity of a drainage gutter and drain rainwater that accumulates in the drainage gutter efficiently, and enhance appearance of the drainage gutter and prevent giving a bad impression to a potential tenant.SOLUTION: A drainage device comprises a long water collecting channel 3 installed in a longitudinal direction, and a pair of long inclined parts 5 installed on both sides of the water collecting channel 3 to incline downward toward the water collecting channel 3, continuously in the longitudinal direction. The inclined part 5 is formed such that a cross-section form in a vertical direction orthogonal to the longitudinal direction is in line symmetry with respect to a center line of the water collecting channel 3. Rainwater flowing into the water collecting channel 3 through the inclined part 5 does not spread in a planar form, but instead gathers in the water collecting channel 3 of a narrow linear form. As such, an amount of rainwater remaining in the water collecting channel 3 increases than in a case with a wide conventional drainage gutter 13, and water pressure also increases and promotes a water flow. As a result, the water collecting channel 3 dries promptly, and staining and growth of moss and others is suppressed in the drainage gutter 13 and the water collecting channel 3.SELECTED DRAWING: Figure 3 【課題】排水溝の水はけを良くし、排水溝に滞溜する雨水等を効率的に排水すること、排水溝の美観を向上せしめ、入居者の客付けに悪い影響を与えないようにすること。【解決手段】長手方向に設けられる長尺に形成された集水路３と、該集水路３の両側に該集水路３に向かって下方に傾斜して設けられる長手方向に連続する長尺に形成された一対の傾斜部５とからなり、上記傾斜部５は長手方向に直交する垂直方向の断面形状が上記集水路３の中心線に対し線対称に形成される。傾斜部５を通って集水路３に流れ込む雨水等は、面状に拡散されず、直線状に幅細に形成された集水路３に集中する。このため、集水路３に残る雨水等は、従来のように幅広の排水溝１３に残る場合よりも水量が増加するので水圧が増し、これにより水の流れが良好となるので、集水路３の乾燥が迅速となり、排水溝１３や集水路３に汚れがつき難く、またコケ等の発生を抑制することができる。【選択図】 図３