JP2007146452A

JP2007146452A - Rainwater utilization system

Info

Publication number: JP2007146452A
Application number: JP2005341203A
Authority: JP
Inventors: Takahiro Tamura; 隆博田村; Kunihiro Takeda; 國浩竹田
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2005-11-25
Filing date: 2005-11-25
Publication date: 2007-06-14
Anticipated expiration: 2025-11-25
Also published as: JP4525573B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rainwater utilization system capable of guiding only clean rainwater into a water storage part by draining the rainwater including polluted one at the begging of the fall without allowing it to flow into the water storage part and without requiring troublesome operations, and enabling a reduction in cost. <P>SOLUTION: A drain port 2 for draining rainwater flowing in an eaves gutter 1 is formed at the bottom part 1a of the eaves gutter 1. An intake 4 communicating with the water storage part 3 is formed in the eaves gutter 1 separately from an outlet 2. The intake 4 is opened at the position where its height from the eaves gutter 1 is higher than the outlet 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は軒樋に流れた雨水を利用する雨水利用システムに関する。 The present invention relates to a rainwater utilization system that utilizes rainwater that has flowed through an eaves.

屋根から流れる雨水を集水し、集水した雨水を通水経路を介して貯水部に導き、貯水部に貯まった雨水を有効利用する雨水利用システムが従来から知られている。 Conventionally known is a rainwater utilization system that collects rainwater flowing from a roof, guides the collected rainwater to a reservoir through a water passage, and effectively uses the rainwater stored in the reservoir.

この種の雨水利用システムにあっては、建物の屋根に降った雨水を軒先に取付けた軒樋に流して雨水を集めるのだが、雨の降り始めには屋根の瓦や軒樋の内面に付着した汚れが雨水と共に貯水部に流れ込んでしまい、汚れのない綺麗な雨水を利用できない場合があった。 In this type of rainwater utilization system, rainwater collected on the roof of a building is poured into the eaves attached to the eaves to collect rainwater, but when it begins to rain, it adheres to the roof tiles and the inner surface of the eaves In some cases, the dirty dirt flows into the reservoir together with rain water, and clean rain water without dirt cannot be used.

このため例えば特許文献１に示す雨水利用システムにあっては、図２のように通水経路３０に開閉可能な排水口部３１を設け、雨の降り始めには排水口部３１を開いて該排水口部３１から汚れた雨水を排水し、またこの後、雨が十分に降ってきた段階で排水口部３１を閉じて貯水部に雨水が流れるようにし、これにより汚れを含む降り始めの雨水を貯水部に流さないようにしていた。 For this reason, for example, in the rainwater utilization system shown in Patent Document 1, a drain port 31 that can be opened and closed is provided in the water passage 30 as shown in FIG. After draining dirty rainwater from the drain port 31, the drain port 31 is closed at a stage when it has sufficiently rained, so that rainwater flows into the water storage unit, thereby starting rain water that starts to fall including dirt. Was not allowed to flow into the reservoir.

ここで特許文献１の排水口部３１の開閉は、排水口部３１に連通接続した一時貯留槽３２内の浮子３３により行われている。即ち雨の降り始めで一時貯留槽３２内の雨水の水位が低い場合には一時貯留槽３２内に浮かべた浮子３３が図２の破線で示すように下降して排水口部３１が開き、この後一時貯留槽３２内の雨水の水位が高くなった場合には図２の実線で示すように浮子３３が上昇して該浮子３３で排水口部３１が閉じるようになっている。また一時貯留槽３２内に貯まった雨水は雨が降り終わった後に一時貯留槽３２に設けた弁３４により開閉可能となった出水口３５を開くことで外部に排出するようにしている。 Here, the opening and closing of the drain port portion 31 of Patent Document 1 is performed by a float 33 in a temporary storage tank 32 connected to the drain port portion 31 in communication. That is, when the rainwater level in the temporary storage tank 32 is low at the start of rain, the float 33 floated in the temporary storage tank 32 descends as shown by the broken line in FIG. When the rainwater level in the rear temporary storage tank 32 becomes high, the float 33 rises as shown by the solid line in FIG. The rainwater stored in the temporary storage tank 32 is discharged outside by opening a water outlet 35 that can be opened and closed by a valve 34 provided in the temporary storage tank 32 after the rain has finished.

しかし上記特許文献１では雨が降った後にその都度一時貯留槽３２の出水口３５を開閉する必要があり非常に面倒である。また上記した浮子３３により排水口部３１を開閉する構造は複雑でありコストがかかる。
特開平９−４１４２９号公報 However, in Patent Document 1, it is necessary to open and close the water outlet 35 of the temporary storage tank 32 each time it rains, which is very troublesome. Further, the structure for opening and closing the drain port 31 by the above-described float 33 is complicated and costly.
Japanese Patent Laid-Open No. 9-41429

本発明は上記従来の問題点に鑑みて発明したものであって、汚れを含む降り始めの雨水を貯水部に流入することなく排水でき、貯水部に綺麗な雨水のみを導くことができ、しかも面倒な作業をする必要なく、且つコストを低くできる雨水利用システムを提供することを課題とするものである。 The present invention has been invented in view of the above-mentioned conventional problems, and can drain drainage water that has started to fall, including dirt, without flowing into the reservoir, and can guide only clean rainwater to the reservoir. It is an object of the present invention to provide a rainwater utilization system that does not require troublesome work and can reduce costs.

上記課題を解決するために本発明に係る雨水利用システムは、軒樋１の底部１ａに軒樋１を流れる雨水を排水するための排水口２を形成し、該軒樋１に前記排水口２とは別に貯水部３に連通する取水口４を形成し、取水口４は軒樋１に対する高さ位置が排水口２よりも高い位置で開口していることを特徴とするものである。 In order to solve the above problems, a rainwater utilization system according to the present invention forms a drainage port 2 for draining rainwater flowing through the eaves rod 1 at the bottom 1a of the eaves rod 1, and the drainage port 2 is formed in the eaves rod 1. Separately, a water intake 4 communicating with the water storage unit 3 is formed, and the water intake 4 is characterized in that the height position relative to the eaves 1 is higher than the drainage port 2.

上記のように取水口４は軒樋１に対する高さ位置が前記排水口２よりも高い位置で開口しているので、軒樋１に流入した降り始めの汚れを含む雨水は排水口２にのみ流入することとなり、これにより降り始めの汚れを含む雨水が貯水部３に流入することを防止できる。そしてこの後、雨が十分に降ってくると、軒樋１を流れる雨水の水位が取水口４よりも高くなり、雨水は取水口４から貯水部３に流入して貯水部３に貯まる。この貯水部３に流れる雨水は、降り始めの雨水により、ある程度汚れが落ちた瓦や軒樋の内面を通過するものであるので、貯水部３には汚れのほとんどない綺麗な雨水が貯まることとなる。しかもこの場合、従来のように排水口２を開閉する構造を設ける必要がなく、手間が省け、且つコストを削減できる。さらに取水口４は軒樋１の底部１ａよりも高い位置に形成しているので、軒樋１を流れる雨水の水位が取水口４よりも高くなった状態においても、軒樋１の底部１ａ付近を流れる汚れを含む雨水が取水口４に流入し難くなっており、これにより軒樋１の上部を流れる汚れを含まない綺麗な雨水のみを取水口４を介して貯水部３に流すことができる。 As described above, since the water intake 4 is opened at a position higher than the drainage port 2 with respect to the eaves 1, rainwater including dirt at the beginning of flowing into the eaves 1 is only in the drainage 2. As a result, it is possible to prevent rainwater containing dirt at the beginning of getting down from flowing into the water storage section 3. After that, when it rains sufficiently, the level of rainwater flowing through the eaves 1 becomes higher than that of the water intake 4, and the rainwater flows from the water intake 4 into the water storage unit 3 and is stored in the water storage unit 3. The rainwater flowing in the water storage section 3 passes through the inner surfaces of the roof tiles and eaves that have been cleaned to some extent by the rainwater that has begun to fall, so that the water storage section 3 can store clean rainwater with almost no dirt. Become. In addition, in this case, there is no need to provide a structure for opening and closing the drain port 2 as in the prior art, so that labor can be saved and the cost can be reduced. Furthermore, since the intake 4 is formed at a position higher than the bottom 1a of the eaves bowl 1, even when the water level of the rainwater flowing through the eaves 1 is higher than that of the intake 4, the vicinity of the bottom 1a of the eaves 1 It is difficult for rain water containing dirt flowing through the water intake 4 to flow into the water intake 4, so that only clean rain water that does not contain dirt flowing above the eaves 1 can be taken to the reservoir 3 through the water inlet 4. .

本発明では降り始めの汚れを含む雨水を貯水部に流入させることなく排水でき、貯水部に綺麗な雨水のみを導くことができ、しかも面倒な作業をする必要なく、しかもコストを低くできる。 In the present invention, rainwater containing dirt at the beginning of falling can be drained without flowing into the water storage section, and only clean rainwater can be guided to the water storage section, and it is not necessary to perform troublesome work, and the cost can be reduced.

以下、本発明を添付図面に示す実施形態に基いて説明する。図１に示すように本発明の雨水利用システムは、軒樋１の底部１ａに排水口２を形成し、該軒樋１に前記排水口２とは別に貯水部３に連通する取水口４を形成したものであり、軒樋１を流れる雨水を排水口２から排水経路を介して外部に排水でき、且つ軒樋１を流れる雨水を取水口４から通水経路を介して貯水部３に流して雨水を貯めることができるようになっている。 Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. As shown in FIG. 1, the rainwater utilization system of the present invention has a drainage port 2 formed in the bottom 1a of the eaves wall 1, and a water intake port 4 communicating with the water storage unit 3 separately from the drainage port 2 in the eaves wall 1. The rainwater flowing through the eaves 1 can be drained from the drainage port 2 to the outside through the drainage route, and the rainwater flowing through the eaves 1 is drained from the waterway 4 to the water storage unit 3 through the waterflow route. Rainwater can be stored.

建物の軒先に沿って取付けた軒樋１は断面同一で長尺なものであり、底部１ａと、底部１ａの両側から立ち上げた側壁部１ｂを備えている。ここで、軒樋１は図１のように水平に取付けてあっても良いし、屋根から軒樋１に流入した雨水がスムーズに排水口２側に向かって流れるように緩やかに水勾配がついた状態で軒先に取付けられるものであっても良い。このうち水勾配をつける場合は、取水口４が排水口２よりも上流側に位置するように軒樋１を排水口２側から取水口４側に行く程上方に位置するように傾斜して取付けてあっても良いし、また排水口２が取水口４よりも上流側に位置するように軒樋１を取水口４側から排水口２側に行く程上方に位置するように傾斜して取付けてあっても良い。 The eaves rod 1 attached along the eaves of the building has a long cross section with the same cross section, and includes a bottom portion 1a and side wall portions 1b raised from both sides of the bottom portion 1a. Here, the eaves wall 1 may be mounted horizontally as shown in FIG. 1, or a gentle water gradient is provided so that rainwater flowing into the eaves wall 1 from the roof flows smoothly toward the drain outlet 2 side. It may be attached to the eaves in the state where it is in contact. Of these, when the water gradient is applied, the eaves 1 is inclined so that the water intake 4 is located upstream from the water discharge port 2 so that the eaves 1 is positioned upward from the water discharge port 2 side to the water intake 4 side. The eaves rod 1 may be attached so that the drainage port 2 is located on the upstream side of the water intake port 4 and is inclined so that the eaves rod 1 is located upward as it goes from the water inlet 4 side to the drainage port 2 side. It may be attached.

上記排水口２は軒樋１の底部１ａに排水側ドレン５を取付けることで形成している。排水側ドレン５は上下に開口する筒状部６を有し、筒状部６を軒樋１の底部１ａに形成した排水側取付孔に挿通し、該筒状部６の上端部を排水側取付孔の孔縁に水密的に装着することで軒樋１に取付けている。筒状部６の上端開口は軒樋１の底部１ａの上面と略同じレベル（詳しくは軒樋１の底部１ａの上面よりもやや上方）に位置し、この筒状部６の上端開口で排水口２を構成している。 The drainage port 2 is formed by attaching a drainage drain 5 to the bottom 1a of the eaves bowl 1. The drainage side drain 5 has a cylindrical part 6 that opens up and down, and the cylindrical part 6 is inserted into a drainage side mounting hole formed in the bottom part 1a of the eaves bowl 1, and the upper end part of the cylindrical part 6 is connected to the drainage side. It is attached to the eaves 1 by watertightly attaching to the hole edge of the attachment hole. The upper end opening of the cylindrical part 6 is located at substantially the same level as the upper surface of the bottom part 1a of the eaves bowl 1 (specifically, slightly above the upper surface of the bottom part 1a of the eaves bowl 1). The mouth 2 is configured.

上記排水側ドレン５の筒状部の下端には排水経路を構成する竪樋８の上端を連通接続してあり、これにより排水口２は竪樋８を介して排水先に連通している。 The lower end of the cylindrical portion of the drainage drain 5 is connected to the upper end of the ridge 8 that constitutes the drainage path, whereby the drainage port 2 communicates with the drainage destination via the ridge 8.

一方、取水口４は軒樋１の底部１ａに取水側ドレン９を取付けることで形成してあり、軒樋１の長手方向における排水口２の近傍に形成されている。取水側ドレン９は上下に開口する筒状部１０を有し、筒状部１０を軒樋１の底部１ａに形成した取水側取付孔に挿通し、該筒状部１０の上部を取水側取付孔の孔縁に水密的に装着することで軒樋１に取付けている。筒状部１０は上端部が軒樋１の底部１ａから上方に向けて突出しており、この筒状部１０の上端開口で取水口４を構成している。 On the other hand, the water intake 4 is formed by attaching a water intake side drain 9 to the bottom 1 a of the eaves bowl 1, and is formed in the vicinity of the drain outlet 2 in the longitudinal direction of the eaves bowl 1. The water intake side drain 9 has a cylindrical portion 10 that opens up and down. The cylindrical portion 10 is inserted into a water intake side mounting hole formed in the bottom portion 1a of the eaves rod 1, and the upper portion of the cylindrical portion 10 is attached to the water side. It is attached to the eaves 1 by being watertightly attached to the hole edge of the hole. The cylindrical portion 10 has an upper end protruding upward from the bottom 1 a of the eaves 1, and the upper end opening of the cylindrical portion 10 constitutes the water intake 4.

ここで、取水側ドレン９の筒状部１０の上端は排水側ドレン５の筒状部６の上端よりも図１のＬに示す寸法だけ上方に位置し、これにより取水口４は軒樋１の底部１ａに対する高さ位置が前記排水口２よりも高い位置で開口している
上記取水側ドレン９の筒状部６の下端には通水経路を構成する縦筒部材１２の上端を連通接続している。縦筒部材１２の下端は貯水タンクからなる貯水部３の上端に連通接続している。なお図１の１３は貯水部３に貯まった雨水を取り出すための開閉自在の雨水取出口部である。 Here, the upper end of the tubular portion 10 of the water intake side drain 9 is positioned above the upper end of the tubular portion 6 of the drain side drain 5 by the dimension shown in FIG. The upper end of the vertical cylindrical member 12 constituting the water passage is connected to the lower end of the cylindrical portion 6 of the intake side drain 9 at a position higher than the drain port 2. is doing. The lower end of the vertical cylinder member 12 is connected in communication with the upper end of the water storage section 3 comprising a water storage tank. Reference numeral 13 in FIG. 1 denotes an openable / closable rainwater outlet for taking out rainwater stored in the water reservoir 3.

また上記排水側ドレン５の筒状部６及び取水側ドレン９の筒状部１０の夫々の上端面には上方に突出する脚部１４を各筒状部６、１０の周方向に間隔を介して複数設けてあり、隣合う脚部１４間に連通口１５を形成している。各脚部１４は上側程筒状部６、１０の径方向の内側に向かうように湾曲したアーチ状に形成してあり、各脚部１４の上端部はこれら脚部１４で囲まれたすり鉢状の升部１６の上端部外周に接続している。升部１６は筒状部６、１０の上方位置で上方に開口しており、升部１６の底部１ａには排水口２又は取水口４に臨むオーバーフロー孔１７を形成している。これにより排水側ドレン５及び取水側ドレン９にあっては、連通口１５を介して排水口２又は取水口４に流れる雨水の経路と、升部１６のオーバーフロー孔１７を介して排水口２又は取水口４に流れる雨水の経路との２つの経路が形成される。 In addition, leg portions 14 projecting upward are provided on the upper end surfaces of the tubular portion 6 of the drainage side drain 5 and the tubular portion 10 of the water intake side drain 9 with an interval in the circumferential direction of the tubular portions 6 and 10. The communication port 15 is formed between the adjacent leg portions 14. Each leg portion 14 is formed in an arch shape curved toward the inner side in the radial direction of the tubular portions 6 and 10 toward the upper side, and the upper end portion of each leg portion 14 is in a mortar shape surrounded by these leg portions 14. This is connected to the outer periphery of the upper end of the flange 16. The flange portion 16 is opened upward at a position above the cylindrical portions 6 and 10, and an overflow hole 17 that faces the drain port 2 or the water intake port 4 is formed in the bottom portion 1 a of the flange portion 16. Accordingly, in the drainage side drain 5 and the intake side drain 9, the path of rainwater flowing to the drainage port 2 or the intake port 4 through the communication port 15 and the drainage port 2 or Two paths, the path of rainwater flowing through the water intake 4, are formed.

以上説明したように本発明の雨水利用システムにあっては、取水口４は軒樋１に対する高さ位置が排水口２よりも高い位置で開口しているので、軒樋１に流入した降り始めの汚れを含む初期の雨水は、軒樋１の底部１ａからの高さが高い取水口４には流入せず、軒樋１の底部１ａからの高さが低い排水口２にのみ流入することとなり、これにより降り始めの汚れを含む雨水は貯水部３に流入することなく排水口２から排水される。そしてこの後、雨が十分に降った状態になると、軒樋１を流れる雨水の水位が取水口４よりも高くなり、これにより軒樋１を流れる雨水は取水口４から貯水部３に流入する。つまり雨が十分に降ってきた段階でのみ軒樋１を流れる雨水を貯水部３に流すことができ、これにより貯水部３に汚れのない綺麗な雨水を貯めることができる。 As described above, in the rainwater utilization system of the present invention, since the intake 4 is opened at a position higher than the drainage port 2 with respect to the eaves 1, it begins to descend into the eaves 1. The initial rainwater containing dirt is not allowed to flow into the intake port 4 having a high height from the bottom portion 1a of the eaves wall 1, but only to the drain port 2 having a low height from the bottom portion 1a of the eaves wall 1. As a result, rainwater containing dirt at the beginning of falling is drained from the drain port 2 without flowing into the water reservoir 3. After that, when rain has fallen sufficiently, the water level of the rainwater flowing through the eaves 1 becomes higher than the intake 4, whereby the rainwater flowing through the eaves 1 flows into the reservoir 3 from the intake 4. . That is, rainwater flowing through the eaves 1 can be allowed to flow to the water storage section 3 only when rain has fallen sufficiently, whereby clean water with no dirt can be stored in the water storage section 3.

また特に本発明では上記のように汚れを含む雨水を貯水部３に流さないようにするにあたって、取水口４を軒樋１に対する高さ位置が排水口２よりも高い位置で開口するようにしたので、従来のように排水口２を開閉する必要がなく手間が省け、且つコストを削減できる。さらに取水口４は軒樋１の底部１ａよりも上方に位置しているので、雨が十分に降ってきた段階において取水口４に軒樋１の底部１ａ付近を流れる汚れが流入し難くなっており、これにより貯水部３には汚れを含まない軒樋１の上部を流れる綺麗な雨水のみを流すことができる。 Further, in particular, in the present invention, in order to prevent rainwater containing dirt from flowing into the reservoir 3 as described above, the intake 4 is opened at a position where the height relative to the eaves 1 is higher than the drain 2. Therefore, there is no need to open and close the drain port 2 as in the prior art, and labor can be saved and costs can be reduced. Further, since the water intake 4 is located above the bottom 1a of the eaves bowl 1, dirt flowing near the bottom 1a of the eaves bowl 1 is less likely to flow into the water intake 4 when rain has fallen sufficiently. As a result, only clean rainwater flowing through the upper portion of the eaves wall 1 that does not contain dirt can flow into the water storage section 3.

また本実施形態の取水口４及び排水口２の夫々の上方にはオーバーフロー孔１７が位置するので、枯葉等の蓄積物が軒樋１内にたまっても各オーバーフロー孔１７から取水口４や排水口２に雨水を流すことができる。また図示例では取水側ドレン９のオーバーフロー孔１７を軒樋１に対する高さが排水側ドレン５のオーバーフロー孔１７よりも高い位置に配してあるので、蓄積物が軒樋１内にたまった場合にも貯水部３に綺麗な雨水を流すことができる。 Moreover, since the overflow hole 17 is located above each of the water intake 4 and the water discharge port 2 of this embodiment, even if accumulations, such as dead leaves, accumulate in the eaves 1, the water intake 4 and the water drainage from each overflow hole 17. Rain water can flow through the mouth 2. In the illustrated example, the overflow hole 17 of the intake side drain 9 is disposed at a position higher than the overflow hole 17 of the drainage side drain 5 because the height with respect to the eaves 1 is higher, so that accumulated matter accumulates in the eaves 1. In addition, clean rainwater can flow through the water reservoir 3.

本発明の実施の形態の一例を示すものであり、一部破断した説明図である。An example of an embodiment of the invention is shown and is a partially broken explanatory view. 従来の雨水利用システムを示す要部断面図である。It is principal part sectional drawing which shows the conventional rainwater utilization system.

符号の説明Explanation of symbols

１軒樋
１ａ底部
２排水口
３貯水部
４取水口 1 eaves 1a Bottom 2 Drainage port 3 Water storage unit 4 Water intake

Claims

軒樋の底部に軒樋を流れる雨水を排水するための排水口を形成し、該軒樋に前記排水口とは別に貯水部に連通する取水口を形成し、取水口は軒樋に対する高さ位置が排水口よりも高い位置で開口していることを特徴とする雨水利用システム。 A drainage port for draining rainwater flowing through the eaves is formed at the bottom of the eaves, and a water intake that communicates with the reservoir is formed in the eaves separately from the drainage port. A rainwater utilization system characterized by opening at a position higher than the drain outlet.