JP4145324B2

JP4145324B2 - Rainwater intake system

Info

Publication number: JP4145324B2
Application number: JP2006001482A
Authority: JP
Inventors: 祥憲真砂
Original assignee: 祥憲真砂
Priority date: 2006-01-06
Filing date: 2006-01-06
Publication date: 2008-09-03
Anticipated expiration: 2026-01-06
Also published as: JP2007182700A

Description

本発明は、竪樋を流れる雨水の一部を取水するための雨水取水装置に関する。 The present invention relates to a rainwater intake device for taking a part of rainwater flowing through a fence.

近年、水不足が深刻な問題となっており、雨水も水資源として有効利用しようとする意識が高まっている。 In recent years, water shortage has become a serious problem, and there is a growing awareness of the effective use of rainwater as a water resource.

雨水を取水する方法としては、住宅等に設置されている竪樋の一部から取水する方法が一般的である。以前より、竪樋を流れる雨水を取水するために、竪樋の途中に取り付けられる取水装置は種々開示されている。しかし、雨水には落ち葉や昆虫等のゴミが含まれているため、取水装置や竪樋自体がこれらのゴミで詰まってしまい、雨水の取水ができなくなる問題があった。 As a method of taking rainwater, a method of taking water from a part of a fence installed in a house or the like is common. In the past, various water intake devices that are attached to the middle of a kite in order to take rainwater flowing through the kite have been disclosed. However, since the rainwater contains garbage such as fallen leaves and insects, the water intake device and the moth itself are clogged with these wastes, which makes it impossible to take rainwater.

そこで、雨水に含まれるゴミを除去するためのフィルターを備えた取水装置が開示されている（例えば、特許文献１及び２参照。）。図１１に示した特許文献１に係る雨水取水継手８０は、部分的に外筒８２と内筒８３よりなる二重筒状構造を有し、この外筒８２と内筒８３の間に雨水溜８８が形成され、この雨水溜８８に溜まった雨水が取水管８９を介して外部の雨水タンク（不図示）に貯留される。特に、この雨水取水継手８０では、雨水溜８８の上方全面を覆うように外筒８２と内筒８３との間に濾過部材８４が載置されている。つまり、雨水取水継手８０によると、濾過部材８４によってゴミが除去された雨水を取水することができる。 Therefore, a water intake device having a filter for removing dust contained in rainwater has been disclosed (see, for example, Patent Documents 1 and 2). A rainwater intake joint 80 according to Patent Document 1 shown in FIG. 11 has a double cylindrical structure partially consisting of an outer cylinder 82 and an inner cylinder 83, and a rainwater reservoir is provided between the outer cylinder 82 and the inner cylinder 83. 88 is formed, and the rainwater accumulated in the rainwater reservoir 88 is stored in an external rainwater tank (not shown) through the intake pipe 89. In particular, in this rainwater intake joint 80, a filtering member 84 is placed between the outer cylinder 82 and the inner cylinder 83 so as to cover the entire upper surface of the rainwater reservoir 88. That is, according to the rainwater intake joint 80, rainwater from which dust has been removed by the filtering member 84 can be taken.

また、図１２に示した特許文献２に係る雨水分岐装置９０も、基本的には、内筒９１と外筒９２よりなる二重筒状構造を有しており、内筒９１の殆どがメッシュフィルター９３で構成されている。竪樋（不図示）から竪樋連結管９４に流入した雨水は、内筒９１のメッシュフィルター９３に沿って流れ、下側フィルター押さえ９５の上端に当たって、メッシュフィルター９３の内側から外側に偏向される流れと、そのまま竪樋（不図示）に流下していく流れになる。そして、メッシュフィルター９３の外側に達した雨水は、外筒９２、内筒ガイド９６及び下側竪樋連結管９７で形成される貯留部９８に至り、取水管９９を通ってタンク（不図示）に貯留される。つまり、雨水分岐装置９０によっても、メッシュフィルター９３によってゴミが除去された雨水を取水することができる。
特開２００２−７００８６号公報特開２００３−９６９９６号公報 Also, the rainwater branching device 90 according to Patent Document 2 shown in FIG. 12 basically has a double cylindrical structure composed of an inner cylinder 91 and an outer cylinder 92, and most of the inner cylinder 91 is a mesh. The filter 93 is configured. Rainwater that has flowed from the kite (not shown) into the kite connection pipe 94 flows along the mesh filter 93 of the inner cylinder 91, hits the upper end of the lower filter press 95, and is deflected from the inside to the outside of the mesh filter 93. It becomes a flow that flows down to the trough (not shown) as it is. The rainwater that has reached the outside of the mesh filter 93 reaches a storage section 98 formed by the outer cylinder 92, the inner cylinder guide 96, and the lower ridge coupling pipe 97, and passes through the intake pipe 99 to a tank (not shown). It is stored in. That is, the rainwater branching device 90 can also take rainwater from which dust has been removed by the mesh filter 93.
Japanese Patent Laid-Open No. 2002-70086 JP 2003-96996 A

しかし、特許文献１に係る雨水取水継手８０では、取水される雨水からゴミを除去することはできるが、濾過部材８５が雨水の流れる方向に対して斜めに設けられているため、濾過部材８５上にゴミが堆積する恐れがある。特に、小雨の場合には、濾過部材８５上に堆積したゴミを雨水で洗い流すことが困難となり、濾過部材８５上をゴミが塞いでしまうと、雨水の取水効率が格段に低下することとなる。 However, in the rainwater intake joint 80 according to Patent Document 1, although dust can be removed from the rainwater taken, the filtration member 85 is provided obliquely with respect to the direction in which the rainwater flows. There is a risk of debris accumulating. In particular, in the case of light rain, it becomes difficult to wash away the dust accumulated on the filter member 85 with rain water. If the dust is blocked on the filter member 85, the efficiency of taking rainwater will be drastically reduced.

一方、特許文献２に係る雨水分岐装置９０では、メッシュフィルター９３が、雨水の流れる方向に対して平行に設けられているため、メッシュフィルター９３の内側にゴミが堆積する恐れは殆ど無い。しかし、この雨水分岐装置９０によると、メッシュフィルター９３に沿って流れる雨水のうち、下側フィルター押さえ９５の上端に当たって、メッシュフィルター９３の内側から外側に偏向された雨水しか取水することができず、取水効率の面から見て、あまり効率的ではない。また、メッシュフィルター９３に沿って流れるうちに自然にメッシュフィルター９３の外側に流出した雨水も、メッシュフィルター９３に沿って更に流れていくうちに再びメッシュフィルター９３の内側に戻ってしまうため、この点から見ても取水効率がよいとは言い難い。 On the other hand, in the rainwater branching device 90 according to Patent Document 2, since the mesh filter 93 is provided in parallel to the direction in which the rainwater flows, there is almost no possibility that dust accumulates inside the mesh filter 93. However, according to the rainwater branching device 90, only rainwater that is deflected from the inside to the outside of the mesh filter 93 can be taken out of the rainwater flowing along the mesh filter 93 by hitting the upper end of the lower filter holder 95, In terms of water intake efficiency, it is not very efficient. In addition, rainwater that naturally flows out of the mesh filter 93 while flowing along the mesh filter 93 returns to the inside of the mesh filter 93 again as it further flows along the mesh filter 93. It is hard to say that water intake efficiency is good.

そこで本発明者は、上記の問題点に鑑み、構成は単純でありながら、ゴミの除去された雨水を効率よく取水することができ、且つ装置自体にゴミが溜まりにくい雨水取水装置を提供するべく鋭意検討を重ねた結果、本発明に至ったのである。 Accordingly, in view of the above problems, the present inventor should provide a rainwater intake device that can efficiently take rainwater from which dust has been removed and that does not easily collect dust in the device itself, while having a simple configuration. As a result of intensive studies, the present invention has been achieved.

即ち、本発明の要旨とするところは、竪樋の途中に取り付けられ、該竪樋を流れる雨水の一部を取水するための取水装置であって、筒状をなし、且つ周壁の中間部がメッシュフィルターで形成された筒状濾過部材と、該筒状濾過部材の外側下方に設けられ、前記メッシュフィルターから前記筒状濾過部材の外側へ流出した雨水を受ける受水部と、を含んで構成され、前記受水部は、該受水部に設けられた取水管によって外部と連通し、前記メッシュフィルターの外周面に、少なくとも１の導水部材が配設され、前記周壁のうち、前記メッシュフィルターの部分以外の上側周壁及び下側周壁と、前記メッシュフィルターの境界部において、前記上側周壁の下端内周縁部及び／又は前記下側周壁の上端内周縁部が面取りされた雨水取水装置であることにある。 That is, the gist of the present invention is a water intake device that is attached in the middle of a reed and for taking a part of rainwater flowing through the reed, has a cylindrical shape, and an intermediate portion of a peripheral wall is provided. A cylindrical filtration member formed of a mesh filter, and a water receiving portion that is provided outside and below the cylindrical filtration member and receives rainwater that flows out of the cylindrical filtration member from the mesh filter. The water receiving part communicates with the outside by a water intake pipe provided in the water receiving part, and at least one water guiding member is disposed on an outer peripheral surface of the mesh filter, and the mesh filter of the peripheral wall is provided. the upper wall and lower wall than the portion of the boundary of the mesh filter, upper end inner periphery of the lower end inner periphery and / or the lower wall of the upper wall is a rainwater intake device which is chamfered In the door.

かかる雨水取水装置において、上部筒状部と、該上部筒状部の内径より小さい内径を有する下部筒状部とが段差部を介して連結された連結管を含み、前記筒状濾過部材の下端部を、前記上部筒状部側から挿入することによって、前記周壁、前記上部筒状部及び前記段差部により前記受水部が形成されたことにある。 In this rainwater intake apparatus, the upper cylindrical portion and a lower cylindrical portion having an inner diameter smaller than the inner diameter of the upper cylindrical portion are connected via a step portion, and the lower end of the cylindrical filtration member By inserting a part from the upper cylindrical part side, the water receiving part is formed by the peripheral wall, the upper cylindrical part, and the stepped part.

かかる雨水取水装置において、前記導水部材の上面は、前記筒状濾過部材の外側に向かって斜め下方向に傾斜していることが好ましい。 In such a rainwater intake apparatus, it is preferable that the upper surface of the water guide member is inclined obliquely downward toward the outside of the cylindrical filtration member.

かかる雨水取水装置において、前記導水部材が配設された位置に対応する前記メッシュフィルターの内周面に、筒状の雨水誘導部材が内嵌され得る。 In such a rainwater intake apparatus, a cylindrical rainwater guiding member may be fitted into the inner peripheral surface of the mesh filter corresponding to the position where the water guiding member is disposed.

かかる雨水取水装置において、前記筒状の雨水誘導部材の下端内周縁部及び／又は該筒状の雨水誘導部材の上端内周縁部は面取りされ得る。 In such a rainwater intake device, the inner peripheral edge at the lower end of the tubular rainwater guiding member and / or the inner peripheral edge at the upper end of the tubular rainwater guiding member can be chamfered.

かかる雨水取水装置において、前記導水部材の下面が、前記筒状濾過部材の外側に向かって斜め下方向に傾斜し、前記筒状の雨水誘導部材の下端内周縁部が面取りされ、該面取りされた筒状の雨水誘導部材の下端内周縁部と前記下面の上端部とが、前記メッシュフィルターを間にして滑らかに隣接し得る。 In such a storm water intake device, the lower surface of the water guiding member is inclined obliquely downward toward the outside of the cylindrical filtration member, and the inner peripheral edge of the lower end of the cylindrical storm water guiding member is chamfered and chamfered. The inner peripheral edge at the lower end of the cylindrical rainwater guiding member and the upper end at the lower surface can be smoothly adjacent to each other with the mesh filter interposed therebetween .

かかる雨水取水装置において、前記メッシュフィルターの内周面に、螺旋状の雨水誘導部材が内嵌され得る。 In such a rainwater intake apparatus, a spiral rainwater guide member may be fitted in the inner peripheral surface of the mesh filter.

かかる雨水取水装置において、前記螺旋状の雨水誘導部材の上側内周縁部及び／又は該螺旋状の雨水誘導部材の下側内周縁部は面取りされ得る。 In such a rainwater intake apparatus, the upper inner peripheral edge of the spiral rainwater guide member and / or the lower inner peripheral edge of the spiral rainwater guide member may be chamfered.

かかる雨水取水装置において、前記導水部材は着脱自在であることが好ましい。 In such a rainwater intake apparatus, it is preferable that the water guiding member is detachable.

本発明の雨水取水装置によると、構造は単純でありながら、ゴミが除去された雨水を容易に取水することができる。特に、本発明に係るメッシュフィルターの外周面には少なくとも１の導水部材が周設されているため、メッシュフィルターから筒状濾過部材の外側へ流出した雨水が、メッシュフィルターから再び筒状濾過部材内へ流入することを防止できると共に、雨水の流出箇所の下方に位置する導水部材によりメッシュフィルターの表面から雨水を分離することができるため、雨水の取水効率の向上が図られる。 According to the rainwater intake device of the present invention, it is possible to easily take rainwater from which dust is removed, although the structure is simple. In particular, since at least one water guide member is provided around the outer peripheral surface of the mesh filter according to the present invention, rainwater that has flowed out from the mesh filter to the outside of the cylindrical filter member is again within the cylindrical filter member from the mesh filter. The rainwater can be separated from the surface of the mesh filter by the water guide member located below the outflow location of the rainwater, so that the rainwater intake efficiency can be improved.

また、本発明に係るメッシュフィルターが、雨水の流れる方向に対して平行に設けられているため、メッシュフィルターに大きなゴミが堆積することがない。従って、雨水の取水効率が低下することがなく、メッシュフィルターの清掃作業の手間も軽減できる。 In addition, since the mesh filter according to the present invention is provided in parallel to the direction in which rainwater flows, large dust does not accumulate on the mesh filter. Therefore, the efficiency of taking rainwater is not reduced, and the labor for cleaning the mesh filter can be reduced.

更に、本発明に係るメッシュフィルターの表面にスライム状の汚れ等が付着した場合、メッシュフィルターの外周面の汚れは竪樋に取り付けたままの状態でブラシ等により直接清掃することができる。一方、メッシュフィルターの内周面の清掃をする場合であっても、本発明の雨水取水装置は竪樋から容易に取り外すことができるため、内周面の清掃も容易に行える。 Further, when slime-like dirt or the like adheres to the surface of the mesh filter according to the present invention, the dirt on the outer peripheral surface of the mesh filter can be directly cleaned with a brush or the like while attached to the ridge. On the other hand, even when the inner peripheral surface of the mesh filter is cleaned, the rainwater intake device of the present invention can be easily removed from the gutter, so that the inner peripheral surface can be easily cleaned.

また、本発明に係る導水部材の上面を、筒状濾過部材の外側に向かって斜め下方向に傾斜させることによって、導水部材で分離された雨水を、より円滑に導水部材の外周端部側へ移動させることができ、雨水を効率よく取水することができる。 Further, by inclining the upper surface of the water guide member according to the present invention obliquely downward toward the outside of the tubular filtration member, rainwater separated by the water guide member can be smoothly moved to the outer peripheral end side of the water guide member. It can be moved and rainwater can be taken in efficiently.

また更に、本発明に係る筒状濾過部材の上側周壁及び下側周壁と、メッシュフィルターとの境界部において、上側周壁の下端内周縁部及び／又は下側周壁の上端内周縁部が面取りされることによって、雨水の取水効率の向上が図られ、また、メッシュフィルターの内周面に沿って流下してきたゴミが円滑に下側周壁内へと誘導されるため、境界部にゴミが溜まることがなく、清掃作業の手間も軽減できる。 Still further, at the boundary between the upper peripheral wall and the lower peripheral wall of the tubular filtration member according to the present invention and the mesh filter, the lower inner peripheral edge of the upper peripheral wall and / or the upper inner peripheral edge of the lower peripheral wall are chamfered. As a result, the efficiency of taking rainwater is improved, and the dust that has flowed down along the inner peripheral surface of the mesh filter is smoothly guided into the lower peripheral wall. In addition, the labor of cleaning can be reduced.

また、本発明に係るメッシュフィルターの内周面に、筒状の雨水誘導部材を内嵌させる、或いは螺旋状の雨水誘導部材を内嵌させることによって、メッシュフィルターの内周面に沿って流下する雨水の一部をメッシュフィルターの外側へ誘導することができるため、取水効率の向上が図られる。更に、この雨水誘導部材は筒状濾過部材の周壁の一部を構成することとなり、メッシュフィルターを内側から補強する効果も得られる。 In addition, the cylindrical rainwater guiding member is fitted into the inner peripheral surface of the mesh filter according to the present invention, or the spiral rainwater guiding member is fitted into the mesh filter, thereby flowing down along the inner peripheral surface of the mesh filter. Since a part of rainwater can be guided to the outside of the mesh filter, water intake efficiency can be improved. Further, the rainwater guiding member constitutes a part of the peripheral wall of the cylindrical filtration member, and the effect of reinforcing the mesh filter from the inside is also obtained.

また、上記の筒状の雨水誘導部材の上端内周縁部及び／又は下端内周縁部、或いは螺旋状の雨水誘導部材の上側内周縁部及び／又は下側内周縁部が面取りされることによって、雨水誘導部材の上端縁部にゴミが溜まることがなく、清掃作業の手間が軽減でき、また、雨水誘導部材の内周面に沿って流下してきた雨水を円滑にメッシュフィルターの外側へと誘導することができ、取水効率の向上が図られる。 Further, by chamfering the upper inner peripheral edge and / or the lower inner peripheral edge of the cylindrical rainwater guiding member, or the upper inner peripheral edge and / or the lower inner peripheral edge of the spiral rainwater guiding member, There is no accumulation of dust at the upper edge of the rainwater guiding member, reducing the labor of cleaning work, and the rainwater flowing down along the inner peripheral surface of the rainwater guiding member is smoothly guided to the outside of the mesh filter. The water intake efficiency can be improved.

更にまた、本発明に係る導水部材の下面を、筒状濾過部材の外側に向かって斜め下方向に傾斜させ、筒状の雨水誘導部材の下端内周縁部を面取りし、当該面取りされた筒状の雨水誘導部材の下端内周縁部と当該下面の上端部とを、メッシュフィルターを間にして滑らかに隣接させることにより、雨水誘導部材の内周面に沿って流下してきた雨水は、表面張力によって更に円滑にメッシュフィルターの外側へと誘導されることとなり、更なる取水効率の向上が図られる。 Furthermore, the lower surface of the water guiding member according to the present invention is inclined obliquely downward toward the outer side of the cylindrical filtration member, the inner peripheral edge of the lower end of the cylindrical rainwater guiding member is chamfered, and the chamfered cylindrical shape of a lower end inner peripheral portion and the lower surface of the upper end portion of the rainwater guide member, by Rukoto smoothly arranged adjacent to between the mesh filter, the rainwater that has flowed down along the inner peripheral surface of the rainwater guide member has a surface tension Therefore, it is guided more smoothly to the outside of the mesh filter, and the water intake efficiency is further improved.

また、本発明に係る導水部材を着脱自在とすることによって、メッシュフィルターの清掃作業を更に容易に行い得る。 Moreover, the mesh filter can be cleaned more easily by making the water guide member according to the present invention detachable.

以下、本発明の雨水取水装置の実施形態について、図面に基づき説明する。なお、本発明は以下に示す実施形態に限定されるものではない。 Hereinafter, embodiments of a rainwater intake apparatus of the present invention will be described with reference to the drawings. In addition, this invention is not limited to embodiment shown below.

本実施の形態に係る雨水取水装置１０は、建物の側壁等に垂直に設置された竪樋１２の途中に取り付けられ、竪樋１２を流れる雨水の一部を取水するための取水装置である。この雨水取水装置１０は、図１に示したように、筒状濾過部材１４と、連結管１６とを含んで構成されており、上側竪樋１２ａと下側竪樋１２ｂとの間に設置される。 A rainwater intake device 10 according to the present embodiment is a water intake device that is attached in the middle of a trough 12 that is vertically installed on a side wall or the like of a building and takes a part of rainwater flowing through the trough 12. As shown in FIG. 1, the rainwater intake device 10 includes a tubular filtration member 14 and a connecting pipe 16, and is installed between the upper ridge 12 a and the lower ridge 12 b. The

筒状濾過部材１４は、全体形状が筒状をなし、筒状濾過部材１４に係る周壁１８のうち、上側周壁１８ａと下側周壁１８ｂとの間の中間部の周壁１８ｃがメッシュフィルター２０で形成されている。また、メッシュフィルター２０の外周面には、上下方向に所定の間隔を空けて、複数の導水部材２２が配設されている。 The tubular filter member 14 has a tubular shape as a whole, and the peripheral wall 18c between the upper peripheral wall 18a and the lower peripheral wall 18b of the peripheral wall 18 related to the cylindrical filter member 14 is formed by the mesh filter 20. Has been. In addition, a plurality of water guide members 22 are disposed on the outer peripheral surface of the mesh filter 20 with a predetermined interval in the vertical direction.

一方の連結管１６は、上部筒状部１７ａと、この上部筒状部１７ａの内径より小さい内径を有する下部筒状部１７ｂとが、段差部２４を介して連結されることによって形成されている。つまり、連結管１６の中心軸を含む縦方向外断面は、下に略凸の形状をなしている。なお、本実施形態に係る連結管１６において、下部筒状部１７ｂは、その中間部で管径が滑らかに変化しているが、下部筒状部１７ｂの形状はこれに限定されず、筒状濾過部材１４の外径及び下側竪樋１２ｂの内径等に応じて種々変形されるものであり、本発明に係る上部筒状部及び下部筒状部には、このような中間部で管径が滑らかに変化する形状のものも含まれる。 One connecting pipe 16 is formed by connecting an upper cylindrical portion 17 a and a lower cylindrical portion 17 b having an inner diameter smaller than the inner diameter of the upper cylindrical portion 17 a through a stepped portion 24. . That is, the longitudinal outer cross section including the central axis of the connecting pipe 16 has a substantially convex shape downward. In the connecting pipe 16 according to the present embodiment, the tube diameter of the lower cylindrical portion 17b smoothly changes at the intermediate portion thereof, but the shape of the lower cylindrical portion 17b is not limited to this, and is cylindrical. Various modifications are made according to the outer diameter of the filter member 14 and the inner diameter of the lower flange 12b. The upper cylindrical portion and the lower cylindrical portion according to the present invention have a pipe diameter at such an intermediate portion. The shape of which changes smoothly is also included.

そして、これら筒状濾過部材１４と連結管１６とは、以下のようにして連結されている。つまり、筒状濾過部材１４の下端部２１を、上部筒状部１７ａ側（連結管１６の上方）から挿入して下部筒状部１７ｂに嵌合させることによって、筒状濾過部材１４が連結管１６内に固定される。また、筒状濾過部材１４を連結管１６内に固定することで、筒状濾過部材１４の周壁１８に係る下側周壁１８ｂ、上部筒状部１７ａ及び段差部２４により受水部２６が形成される。なお、この受水部２６は、上部筒状部１７ａに設けられた取水管２８によって雨水取水装置１０の外部と連通している。 And these cylindrical filtration members 14 and connecting pipe 16 are connected as follows. That is, the lower end portion 21 of the tubular filtration member 14 is inserted from the upper tubular portion 17a side (above the connecting tube 16) and fitted into the lower tubular portion 17b, whereby the tubular filtering member 14 is connected to the connecting tube. 16 is fixed. Further, by fixing the tubular filtration member 14 in the connecting pipe 16, a water receiving portion 26 is formed by the lower circumferential wall 18 b, the upper tubular portion 17 a and the step portion 24 related to the circumferential wall 18 of the tubular filtration member 14. The In addition, this water receiving part 26 is connected with the exterior of the rain water intake apparatus 10 by the water intake pipe 28 provided in the upper cylindrical part 17a.

次に、以上の構成から成る雨水取水装置１０の竪樋１２への取り付け方法、及びこの雨水取水装置１０による雨水の取水方法について説明する。 Next, a method for attaching the rainwater intake device 10 having the above configuration to the trough 12 and a rainwater intake method by the rainwater intake device 10 will be described.

本実施形態の雨水取水装置１０は、竪樋１２の途中、すなわち上側竪樋１２ａと下側竪樋１２ｂとの間に取り付けられる。具体的には、まず筒状濾過部材１４の上端開口１５内へ上側竪樋１２ａの下端部１１を挿入し、且つ連結管１６の縦方向の長さ分だけ筒状濾過部材１４を上方へ移動させる。そして、筒状濾過部材１４を上方へ移動させた状態で、下側竪樋１２ｂの上端開口１３内へ連結管１６の下端部１９、すなわち下部筒状部１７ｂの下端部１９を挿入することによって、下側竪樋１２ｂに連結管１６が取り付けられる。最後に、上方へ移動させておいた筒状濾過部材１４を下方へ移動させて、筒状濾過部材１４の下端部２１を上部筒状部１７ａ側（連結管１６の上方）から連結管１６内へ挿入し、下端部２１を連結管１６に係る下部筒状部１７ｂに嵌合することによって、連結管１６内に筒状濾過部材１４が固定されると共に、上記のとおり、連結管１６内に受水部２６が形成される。 The rainwater intake device 10 of this embodiment is attached in the middle of the ridge 12, that is, between the upper ridge 12a and the lower ridge 12b. Specifically, first, the lower end portion 11 of the upper flange 12a is inserted into the upper end opening 15 of the tubular filtration member 14, and the tubular filtration member 14 is moved upward by the length of the connecting pipe 16 in the vertical direction. Let And by moving the cylindrical filtration member 14 upward, by inserting the lower end portion 19 of the connecting pipe 16, that is, the lower end portion 19 of the lower cylindrical portion 17b, into the upper end opening 13 of the lower flange 12b. The connecting pipe 16 is attached to the lower rod 12b. Finally, the tubular filtration member 14 moved upward is moved downward, and the lower end portion 21 of the tubular filtration member 14 is moved from the upper tubular portion 17a side (above the connection tube 16) into the connection tube 16. And the lower end portion 21 is fitted into the lower cylindrical portion 17b of the connecting pipe 16 so that the tubular filtration member 14 is fixed in the connecting pipe 16 and, as described above, in the connecting pipe 16. A water receiving portion 26 is formed.

上記のようにして、竪樋１２の途中に雨水取水装置１０を取り付けることによって、竪樋１２を流れる雨水の一部を容易に取水することができる。具体的には、上側竪樋１２ａの内周面に沿って流下してきた、落ち葉等のゴミを含む雨水が、まず筒状濾過部材１４に係る上側周壁１８ａの内周面に沿って筒状濾過部材１４内を流下し、メッシュフィルター２０で形成された中間部の周壁１８ｃに達する。メッシュフィルター２０に達した雨水は、メッシュフィルター２０に沿って流下していく過程で、その一部がメッシュフィルター２０によって濾過された後、筒状濾過部材１４の外側へと流出する。この筒状濾過部材１４の外側へ流出した雨水はメッシュフィルター２０に沿って更に流下し、導水部材２２によってメッシュフィルター２０の表面から分離される。そして、この分離された雨水は、導水部材２２の上面を伝って導水部材２２の外周端部２２ａ側へ移動した後、外周端部２２ａから下方へ滴下し、連結管１６内に形成された受水部２６に溜められる。最後に、受水部２６に溜められた雨水が、取水管２８を介して雨水タンク（不図示）に貯水される。 As described above, by attaching the rainwater intake device 10 in the middle of the ridge 12, a part of the rainwater flowing through the ridge 12 can be easily taken. Specifically, rainwater containing dust such as fallen leaves that has flowed down along the inner peripheral surface of the upper ridge 12a is first filtered along the inner peripheral surface of the upper peripheral wall 18a of the cylindrical filter member 14. It flows down through the member 14 and reaches the peripheral wall 18 c at the intermediate portion formed by the mesh filter 20. In the process of flowing down along the mesh filter 20, the rainwater that has reached the mesh filter 20 is partly filtered by the mesh filter 20 and then flows out of the cylindrical filter member 14. The rainwater that has flowed out of the cylindrical filter member 14 further flows down along the mesh filter 20 and is separated from the surface of the mesh filter 20 by the water guide member 22. The separated rainwater travels along the upper surface of the water guide member 22 and moves to the outer peripheral end portion 22 a side of the water guide member 22, and then drops downward from the outer peripheral end portion 22 a to receive the water formed in the connecting pipe 16. It is stored in the water part 26. Finally, the rainwater stored in the water receiving unit 26 is stored in a rainwater tank (not shown) through the intake pipe 28.

以上のように、本実施形態の雨水取水装置１０によると、構成は単純でありながら、ゴミが除去された雨水を容易に取水することができる。特に、本実施形態に係るメッシュフィルター２０の外周面には導水部材２２が複数周設されているため、メッシュフィルター２０から筒状濾過部材１４の外側へ流出した雨水が、メッシュフィルター２０から再び筒状濾過部材１４内へ流入することを防止できると共に、雨水の流出箇所に応じて、その下方に配設された導水部材２２によりメッシュフィルター２０の表面から雨水を分離することができるため、雨水の取水効率の向上が図られる。 As described above, according to the rainwater intake device 10 of the present embodiment, the rainwater from which dust is removed can be easily taken in, though the configuration is simple. In particular, since a plurality of water guide members 22 are provided on the outer peripheral surface of the mesh filter 20 according to the present embodiment, rainwater that has flowed out from the mesh filter 20 to the outside of the tubular filter member 14 is again piped from the mesh filter 20. Since the rainwater can be separated from the surface of the mesh filter 20 by the water guide member 22 disposed below the rainwater according to the outflow location of the rainwater, the rainwater can be separated from the surface of the mesh filter 20. The intake efficiency is improved.

また、メッシュフィルター２０は、雨水の流れる方向に対して平行に設けられているため、メッシュフィルター２０に大きなゴミが堆積することがない。従って、雨水の取水効率が低下することがなく、メッシュフィルター２０自体の清掃作業の手間も軽減できる。 In addition, since the mesh filter 20 is provided in parallel with the direction in which rainwater flows, large dust does not accumulate on the mesh filter 20. Accordingly, the efficiency of taking rainwater is not reduced, and the labor of cleaning the mesh filter 20 itself can be reduced.

更に、メッシュフィルター２０の表面にスライム状の汚れ等が付着した場合、メッシュフィルター２０の外周面の汚れは竪樋１２に取り付けたままの状態でもブラシ等で直接清掃することができる。一方、メッシュフィルター２０の内周面の清掃をする際であっても、本実施形態の雨水取水装置１０は竪樋１２から容易に取り外すことができるため、竪樋１２から取り外して内周面をブラシ等で直接清掃することができる。 Further, when slime-like dirt or the like adheres to the surface of the mesh filter 20, the dirt on the outer peripheral surface of the mesh filter 20 can be directly cleaned with a brush or the like even when attached to the ridge 12. On the other hand, even when cleaning the inner peripheral surface of the mesh filter 20, the rainwater intake device 10 of the present embodiment can be easily removed from the ridge 12. It can be cleaned directly with a brush.

以上、本実施形態の雨水取水装置１０について詳述したが、本発明は上記の実施形態に限定されない。例えば、本実施形態の雨水取水装置１０は、図３に示すような、筒状濾過部材１４を覆って、下端部３１が連結管１６の上端開口１６ａに嵌合されるカバー３０を備えていることが好ましい。筒状濾過部材１４をカバー３０で覆うことで、外部からの影響によってメッシュフィルター２０が汚れたり、受水部２６にゴミが溜まったりすることを防止できる。また、カバー３０を透明とすることで、メッシュフィルター２０の汚れ具合を容易に観察できる。 As mentioned above, although the rainwater intake device 10 of this embodiment was explained in full detail, this invention is not limited to said embodiment. For example, the rainwater intake device 10 of the present embodiment includes a cover 30 that covers the tubular filtration member 14 and has a lower end portion 31 fitted into the upper end opening 16 a of the connecting pipe 16 as shown in FIG. 3. It is preferable. By covering the tubular filtration member 14 with the cover 30, it is possible to prevent the mesh filter 20 from becoming dirty due to an external influence, and dust from being collected in the water receiving portion 26. Further, by making the cover 30 transparent, the degree of contamination of the mesh filter 20 can be easily observed.

更に、本実施形態の雨水取水装置１０に係る筒状濾過部材１４は、上側竪樋１２ａに直接連結されているが、上側竪樋１２ａに別体の筒状連結管（不図示）等を介して筒状濾過部材１４が連結されてもよい。 Furthermore, although the cylindrical filtration member 14 according to the rainwater intake apparatus 10 of the present embodiment is directly connected to the upper ridge 12a, it is connected to the upper ridge 12a via a separate cylindrical connection pipe (not shown) or the like. The tubular filtration member 14 may be connected.

また更に、本実施形態の雨水取水装置１０に係る導水部材２２は、各図に示した形状に限定されるものではないが、導水部材２２の上面は、各図に示したように、筒状濾過部材１４の外側に向かって斜め下方向に傾斜していることが好ましい。上記のとおり、メッシュフィルター２０を介して筒状濾過部材１４の外側へ流出した雨水は、メッシュフィルター２０に沿って流下した後、導水部材２２によってメッシュフィルター２０の表面から分離されるが、導水部材２２の上面を傾斜させて、導水部材２２の外周端部２２ａを斜め下方向に位置させることによって、導水部材２２で分離された雨水を、より円滑に導水部材２２の外周端部２２ａ側へ移動させることができ、雨水を効率よく受水部２６へと導くことができる。 Furthermore, the water guide member 22 according to the rainwater intake apparatus 10 of the present embodiment is not limited to the shape shown in each drawing, but the top surface of the water guide member 22 is tubular as shown in each drawing. It is preferable to incline obliquely downward toward the outside of the filter member 14. As described above, the rainwater that flows out of the cylindrical filter member 14 through the mesh filter 20 flows down along the mesh filter 20, and then is separated from the surface of the mesh filter 20 by the water guide member 22. By inclining the upper surface of 22 and positioning the outer peripheral end 22a of the water guide member 22 obliquely downward, the rainwater separated by the water guide member 22 is moved more smoothly to the outer peripheral end 22a side of the water guide member 22 The rainwater can be efficiently guided to the water receiving unit 26.

図４（ａ）及び図４（ｂ）に、本発明に係る筒状濾過部材の他の実施形態である筒状濾過部材１４ａを示す。なお、同図（ａ）は筒状濾過部材１４ａの上部拡大断面図、同図（ｂ）は下部拡大断面図である。同図（ａ）及び（ｂ）に示した筒状濾過部材１４ａも、基本的には筒状濾過部材１４と同様、上側周壁１８ａ、下側周壁１８ｂ及びメッシュフィルター２０で構成されており、メッシュフィルター２０の外周面には、上下方向に所定の間隔を空けて、複数の導水部材２２が周設されている。更に、この筒状濾過部材１４ａでは、上側周壁１８ａ及び下側周壁１８ｂと、メッシュフィルター２０の境界部４０ａ、４０ｂにおいて、上側周壁１８ａの下端内周縁部４１及び下側周壁１８ｂの上端内周縁部４２が面取りされている。 4 (a) and 4 (b) show a tubular filtration member 14a which is another embodiment of the tubular filtration member according to the present invention. In addition, the figure (a) is the upper expanded sectional view of the cylindrical filtration member 14a, and the figure (b) is a lower expanded sectional view. The cylindrical filtration member 14a shown in FIGS. 4A and 4B is basically composed of an upper peripheral wall 18a, a lower peripheral wall 18b, and a mesh filter 20 in the same manner as the cylindrical filtration member 14. A plurality of water guide members 22 are provided around the outer peripheral surface of the filter 20 at predetermined intervals in the vertical direction. Furthermore, in this cylindrical filtration member 14a, the upper peripheral wall 18a and the lower peripheral wall 18b, and the boundary portions 40a and 40b of the mesh filter 20, the lower end inner peripheral edge 41 of the upper peripheral wall 18a and the upper inner peripheral edge of the lower peripheral wall 18b. 42 is chamfered.

このように、まず上側周壁１８ａの下端内周縁部４１が面取りされることによって、上側周壁１８ａとメッシュフィルター２０の境界部４０ａでは、上側竪樋１２ａの内周面に沿って流下してきた雨水が、上側周壁１８ａを介して円滑にメッシュフィルター２０の外側へと誘導されるため、雨水の取水効率の向上が図られる。一方、下側周壁１８ｂの上端内周縁部４２が面取りされることによって、下側周壁１８ｂとメッシュフィルター２０の境界部４０ｂでは、メッシュフィルター２０の内周面に沿って流下してきたゴミが、円滑に下側周壁１８ｂ内へと誘導されるため、境界部４０ｂにゴミが溜まることがなく、清掃作業の手間も軽減できる。 In this way, first, the lower peripheral edge 41 of the upper peripheral wall 18a is chamfered, so that rainwater flowing down along the inner peripheral surface of the upper ridge 12a at the boundary 40a between the upper peripheral wall 18a and the mesh filter 20 is removed. Since it is smoothly guided to the outside of the mesh filter 20 through the upper peripheral wall 18a, the efficiency of taking in rainwater can be improved. On the other hand, by chamfering the inner peripheral edge portion 42 at the upper end of the lower peripheral wall 18b, the dust flowing down along the inner peripheral surface of the mesh filter 20 at the boundary portion 40b between the lower peripheral wall 18b and the mesh filter 20 is smooth. Therefore, the dust is not collected in the boundary portion 40b, and the labor of the cleaning work can be reduced.

なお、本発明に係る筒状濾過部材において、必ずしも上側周壁１８ａの下端内周縁部４１及び下側周壁１８ｂの上端内周縁部４２の両方を面取りする必要はなく、何れか一方のみが面取りされた態様であってもよい。つまり、上側周壁１８ａの下端内周縁部４１のみが面取りされた筒状濾過部材であれば、雨水が円滑にメッシュフィルター２０の外側へ誘導されると共に、境界部４０ｂにおいても、メッシュフィルター２０の内側を流下してきた雨水の一部を、下側周壁１８ｂの上端縁部によって外側へ流出させることができる。また、下側周壁１８ｂの上端内周縁部４２のみが面取りされた筒状濾過部材であれば、境界部４０ａにおいて、雨水がメッシュフィルター２０の外側へ積極的に誘導されることはないが、この雨水にはゴミが含まれているため、メッシュフィルター２０にゴミが誘導されることもなく、メッシュフィルター２０が汚れにくくなる。 In the cylindrical filtration member according to the present invention, it is not always necessary to chamfer both the lower end inner peripheral edge 41 of the upper peripheral wall 18a and the upper inner peripheral edge 42 of the lower peripheral wall 18b, and only one of them is chamfered. An aspect may be sufficient. That is, if it is a cylindrical filtration member in which only the lower peripheral edge 41 at the lower end of the upper peripheral wall 18a is chamfered, rainwater is smoothly guided to the outside of the mesh filter 20 and the inside of the mesh filter 20 also at the boundary 40b. A part of the rainwater that has flowed down can be discharged to the outside by the upper edge of the lower peripheral wall 18b. In addition, if the cylindrical filter member is formed by chamfering only the upper end inner peripheral edge 42 of the lower peripheral wall 18b, rainwater is not actively guided to the outside of the mesh filter 20 at the boundary 40a. Since the rainwater contains dust, dust is not guided to the mesh filter 20 and the mesh filter 20 becomes difficult to get dirty.

以上、本発明の雨水取水装置に係る筒状濾過部材の一実施形態について詳述したが、筒状濾過部材は上記の実施形態に限定されない。例えば、図５に示した雨水取水装置１０ａは、図１に示した雨水取水装置１０と略同様の構成を含んでなるものであるが、この雨水取水装置１０ａに係る筒状濾過部材４５は、メッシュフィルター２０の外周面に配設された導水部材２２の配設位置に対応するメッシュフィルター２０の内周面に、筒状濾過部材４５の周壁１８の一部を構成する筒状の雨水誘導部材４６が、上下方向に間隔を空けて複数内嵌されている。 As mentioned above, although one Embodiment of the cylindrical filtration member which concerns on the rainwater intake device of this invention was explained in full detail, a cylindrical filtration member is not limited to said embodiment. For example, the rainwater intake device 10a shown in FIG. 5 includes a configuration substantially similar to that of the rainwater intake device 10 shown in FIG. 1, but the tubular filtration member 45 according to the rainwater intake device 10a includes: A cylindrical rainwater guiding member that constitutes a part of the peripheral wall 18 of the cylindrical filtration member 45 on the inner peripheral surface of the mesh filter 20 corresponding to the disposition position of the water guide member 22 disposed on the outer peripheral surface of the mesh filter 20. A plurality of 46 are fitted in the vertical direction with an interval.

このように、メッシュフィルター２０の内周面に雨水誘導部材４６を複数内嵌させることによって、メッシュフィルター２０の内周面に沿って流下する雨水の一部を、各導水部材２２の上方に位置する雨水誘導部材４６の上端縁部４７でメッシュフィルター２０の外側へ誘導することができるため、筒状濾過部材１４に比べて取水効率を向上することができる。更に、雨水誘導部材４６は筒状濾過部材４５の周壁１８の一部を構成することとなり、メッシュフィルター２０を内側から補強する効果も得られるため、メッシュフィルター２０の外周面をブラシ等で直接清掃する際に、メッシュフィルター２０が内側方向へ凹む恐れもない。 In this way, by fitting a plurality of rainwater guiding members 46 on the inner peripheral surface of the mesh filter 20, a part of the rainwater flowing down along the inner peripheral surface of the mesh filter 20 is positioned above each water guide member 22. Since it can be guided to the outside of the mesh filter 20 by the upper edge 47 of the rainwater guiding member 46, the water intake efficiency can be improved as compared with the tubular filtration member 14. Further, since the rainwater guiding member 46 constitutes a part of the peripheral wall 18 of the cylindrical filtration member 45 and the effect of reinforcing the mesh filter 20 from the inside is also obtained, the outer peripheral surface of the mesh filter 20 is directly cleaned with a brush or the like. In doing so, there is no fear that the mesh filter 20 is recessed inward.

また、雨水誘導部材の他の実施形態として、図６に示した筒状濾過部材４５に内嵌された雨水誘導部材４６ａは、各々の雨水誘導部材４６ａに係る上端内周縁部４８及び下端内周縁部４９が、上述した上側周壁１８ａの下端内周縁部４１等と同様、面取りされている。つまり、雨水誘導部材４６ａの上端内周縁部４８を面取りすることによって、メッシュフィルター２０の内周面に沿って流下してきたゴミが、円滑に筒状濾過部材４５内を下方へと誘導されるため、雨水誘導部材４６ａの上端縁部にゴミが溜まることがなく、清掃作業の手間が軽減できる。一方、雨水誘導部材４６ａの下端内周縁部４９を面取りすることによって、雨水誘導部材４６ａの内周面に沿って流下してきた雨水を円滑にメッシュフィルター２０の外側へと誘導することができ、取水効率の向上が図られる。 Further, as another embodiment of the rainwater guiding member, the rainwater guiding member 46a fitted in the cylindrical filtration member 45 shown in FIG. 6 includes an upper end inner peripheral edge 48 and a lower end inner peripheral edge related to each rainwater guiding member 46a. The portion 49 is chamfered in the same manner as the lower end inner peripheral edge portion 41 of the upper peripheral wall 18a described above. That is, by chamfering the inner peripheral edge 48 of the upper end of the rainwater guiding member 46a, dust flowing down along the inner peripheral surface of the mesh filter 20 is smoothly guided downward in the tubular filter member 45. In addition, dust does not collect at the upper edge of the rainwater guiding member 46a, and the labor for cleaning can be reduced. On the other hand, by chamfering the inner peripheral edge 49 of the lower end of the rainwater guiding member 46a, the rainwater flowing down along the inner peripheral surface of the rainwater guiding member 46a can be smoothly guided to the outside of the mesh filter 20, Efficiency is improved.

なお、本実施形態の筒状濾過部材４５において、必ずしも雨水誘導部材４６ａの上端内周縁部４８及び下端内周縁部４９の両方を面取りする必要はなく、何れか一方のみが面取りされた態様であってもよい。つまり、雨水誘導部材４６ａの下端内周縁部４９のみが面取りされた態様であれば、雨水が円滑にメッシュフィルター２０の外側へ誘導されると共に、メッシュフィルター２０の内周面を流下してきた雨水の一部を、雨水誘導部材４６ａの上端縁部４７によって外側へ流出させることもでき、取水効率の向上が図られる。また、雨水誘導部材４６ａの上端内周縁部４８のみが面取りされた態様であれば、ゴミを含む雨水が、メッシュフィルター２０の外側へと積極的に誘導されることはなく、メッシュフィルター２０が汚れにくくなる。 In the tubular filtration member 45 of the present embodiment, it is not always necessary to chamfer both the upper-end inner peripheral edge 48 and the lower-end inner peripheral edge 49 of the rainwater guiding member 46a, and only one of them is chamfered. May be. That is, if only the bottom inner peripheral edge 49 of the rainwater guiding member 46a is chamfered, the rainwater is smoothly guided to the outside of the mesh filter 20, and the rainwater flowing down the inner peripheral surface of the mesh filter 20 is used. A part of the rainwater guiding member 46a can be discharged to the outside by the upper edge 47, thereby improving the water intake efficiency. Further, if only the upper inner peripheral edge 48 of the rainwater guiding member 46a is chamfered, the rainwater containing dust is not actively guided to the outside of the mesh filter 20, and the mesh filter 20 is soiled. It becomes difficult.

更に、雨水誘導部材の他の実施形態として、図７に示したように、筒状濾過部材４５ａに係るメッシュフィルター２０の内周面に、螺旋状の雨水誘導部材４６ｂが内嵌されてもよい。雨水誘導部材４６ｂを螺旋状とすることによって、メッシュフィルター２０の内周面を流下する雨水の流れが螺旋状の流れへと変更されるため、雨水がメッシュフィルター２０の外側へ誘導され易くなり、雨水の取水効率が向上される。また更に、同図に示した螺旋状の雨水誘導部材４６ｂのように、上側内周縁部５１を面取りすることによって、上述した筒状の雨水誘導部材４６ａの場合と同様、メッシュフィルター２０の内周面に沿って流下してきたゴミは、円滑に筒状濾過部材４５ａ内を下方へと誘導されるため、雨水誘導部材４６ｂの上側縁部にゴミが溜まることがなく、清掃作業の手間が軽減できる。一方、雨水誘導部材４６ｂの下側内周縁部５２を面取りすることによって、雨水誘導部材４６ｂの内周面に沿って流下してきた雨水を円滑にメッシュフィルター２０の外側へと誘導することができ、取水効率の向上が図られる。 Furthermore, as another embodiment of the rainwater guiding member, as shown in FIG. 7, a spiral rainwater guiding member 46b may be fitted inside the inner peripheral surface of the mesh filter 20 according to the tubular filtration member 45a. . By making the rainwater guiding member 46b spiral, the flow of rainwater flowing down the inner peripheral surface of the mesh filter 20 is changed to a spiral flow, so that rainwater is easily guided to the outside of the mesh filter 20, Rainwater intake efficiency is improved. Further, the inner peripheral edge 51 of the mesh filter 20 is chamfered by chamfering the upper inner peripheral edge 51 as in the spiral rainwater guiding member 46b shown in the figure, as in the case of the cylindrical rainwater guiding member 46a described above. Since the dust flowing down along the surface is smoothly guided downward in the tubular filtering member 45a, the dust does not collect on the upper edge of the rainwater guiding member 46b, and the labor of the cleaning work can be reduced. . On the other hand, by chamfering the lower inner peripheral edge 52 of the rainwater guiding member 46b, the rainwater flowing down along the inner peripheral surface of the rainwater guiding member 46b can be smoothly guided to the outside of the mesh filter 20, The intake efficiency is improved.

また、本発明に係る雨水誘導部材を備えた筒状濾過部材の他の実施形態として、図８に示した筒状濾過部材４５ｂは、メッシュフィルター２０の外周面に配設された導水部材２３の配設位置に対応するメッシュフィルター２０の内周面に、上端内周縁部４８及び下端内周縁部４９が面取りされた雨水誘導部材４６ａが複数内嵌されている。ここで、筒状濾過部材４５ｂに配設された導水部材２３の下面２３ａは、筒状濾過部材４５ｂの外側に向かって斜め下方向に傾斜しており、更に、雨水誘導部材４６ａの内周面５５とこの導水部材２３の下面２３ａとが、上記の雨水誘導部材４６ａの下端内周縁部４９から下面２３ａの上端２３ｂに向けて延長される仮想面を介して滑らかに接続されている。 Further, as another embodiment of the tubular filtration member provided with the rainwater guiding member according to the present invention, the tubular filtration member 45b shown in FIG. 8 is formed of the water guide member 23 disposed on the outer peripheral surface of the mesh filter 20. A plurality of rainwater guiding members 46a having chamfered upper and lower inner peripheral edge portions 48 and 49 are fitted into the inner peripheral surface of the mesh filter 20 corresponding to the arrangement position. Here, the lower surface 23a of the water guide member 23 disposed on the tubular filtration member 45b is inclined obliquely downward toward the outside of the tubular filtration member 45b, and further, the inner peripheral surface of the rainwater guiding member 46a. 55 and the lower surface 23a of the water guiding member 23 are smoothly connected via a virtual surface extending from the lower end inner peripheral edge 49 of the rainwater guiding member 46a toward the upper end 23b of the lower surface 23a.

すなわち、雨水誘導部材４６ａの内周面５５と導水部材２３の下面２３ａとが、上記の仮想面を介して滑らかに接続されることとなるように、導水部材２３の配設位置に対応させて雨水誘導部材４６ａをメッシュフィルター２０の内周面に内嵌させることにより、雨水誘導部材４６ａの内周面５５に沿って流下してきた雨水が、表面張力によって導水部材２３の下面２３ａへと誘導されるため、筒状濾過部材４５に比べて更に円滑にメッシュフィルター２０の外側へと雨水を誘導することができ、取水効率の更なる向上が図られる。 In other words, the inner peripheral surface 55 of the rainwater guiding member 46a and the lower surface 23a of the water guiding member 23 are made to correspond smoothly to the arrangement position of the water guiding member 23 so as to be smoothly connected via the virtual surface. By fitting the rainwater guiding member 46a to the inner peripheral surface of the mesh filter 20, the rainwater flowing down along the inner peripheral surface 55 of the rainwater guiding member 46a is guided to the lower surface 23a of the water guiding member 23 by the surface tension. For this reason, rainwater can be guided to the outside of the mesh filter 20 more smoothly than the cylindrical filtration member 45, and the water intake efficiency can be further improved.

以上に例示した本発明の実施形態に係る雨水取水装置は、本発明の技術的思想を実質的に限定するものと解してはならない。本発明は、その要旨を逸脱しない範囲で、当業者の創意と工夫により、適宜に改良、変更又は追加をしながら実施できる。例えば、本発明の雨水取水装置に係るメッシュフィルターのメッシュサイズは、取水された雨水の用途に応じて任意に選択され、特に限定されるものではないが、雨水の濾過機能と取水効率の観点から、１０〜１００メッシュが好ましく、より好ましいのは４０〜６０メッシュである。 The rainwater intake device according to the embodiment of the present invention exemplified above should not be construed as substantially limiting the technical idea of the present invention. The present invention can be carried out without departing from the gist thereof, with appropriate improvements, changes or additions based on the inventive ideas and ideas of those skilled in the art. For example, the mesh size of the mesh filter according to the rainwater intake apparatus of the present invention is arbitrarily selected according to the use of the rainwater taken, is not particularly limited, from the viewpoint of the rainwater filtration function and water intake efficiency 10 to 100 mesh is preferable, and 40 to 60 mesh is more preferable.

また、本発明の雨水取水装置に係る連結管内への筒状濾過部材の固定方法、連結管の形状等も上記の態様に限定されず、例えば図９に示したように、連結管１６に係る下部筒状部１７ｂ内に設けた溝部５０に筒状濾過部材４５の下端部２１を差し込むことによって、連結管１６内に筒状濾過部材４５が固定されてもよい。また、連結管１６の形状についても、各実施形態に示したような、段差部２４が水平をなし、上部筒状部１７ａ、段差部２４及び下部筒状部１７ｂがそれぞれ直角をなして連結された形状に限定されず、例えば滑らかな段差部、つまり上部筒状部１７ａから下部筒状部１７ｂにかけて斜め下方向に傾斜、或いは湾曲した段差部によって、上部筒状部１７ａと下部筒状部１７ｂとが連結された形状であってもよい。 Moreover, the fixing method of the cylindrical filtration member in the connecting pipe according to the rainwater intake apparatus of the present invention, the shape of the connecting pipe, and the like are not limited to the above-described modes. For example, as shown in FIG. The tubular filtration member 45 may be fixed in the connecting pipe 16 by inserting the lower end portion 21 of the tubular filtration member 45 into the groove portion 50 provided in the lower tubular portion 17b. As for the shape of the connecting pipe 16, the stepped portion 24 is horizontal as shown in each embodiment, and the upper cylindrical portion 17a, the stepped portion 24 and the lower cylindrical portion 17b are connected at right angles. For example, the upper cylindrical portion 17a and the lower cylindrical portion 17b are smooth stepped portions, that is, stepped portions that are inclined obliquely downward or curved from the upper cylindrical portion 17a to the lower cylindrical portion 17b. And may be connected to each other.

また、本発明の雨水取水装置において、必ずしも連結管を備えている必要はなく、筒状濾過部材の外側下方に、筒状濾過部材に係るメッシュフィルターから流出した雨水を受けることのできる受水部が設けられていればよい。つまり、例えば図１０（ａ）に示したように、筒状濾過部材１４の外側下方において、筒状濾過部材１４に係る下側周壁１８ｂと、下側周壁１８ｂの周囲に配設された筒状の側壁５３と、下側周壁１８ｂと側壁５３の下端周縁とを連結する底部５４と、によって形成された受水部２６ａを備えた雨水取水装置１０ｂのような態様であってもよい。或いは、下側竪樋１２ｂと、下側竪樋１２ｂの周囲に配設された筒状の側壁５３と、下側竪樋１２ｂと側壁５３の下端周縁とを連結する底部５４と、によって形成された受水部２６ｂを備えた態様であってもよい。更には、同図（ｂ）に示したように、下側周壁１８ｂ又は下側竪樋１２ｂから斜め上方に向かって側壁５３ａを周設することによって、筒状濾過部材１４の外側下方に漏斗状の受水部２６ｃが設けられた雨水取水装置１０ｃのような態様であってもよい。なお、これらの態様に係る受水部２６ａ〜２６ｃは、筒状濾過部材１４に一体に形成されてもよく、或いは側壁５３や底部５４等で予め形成された別体の筒状部材を、筒状濾過部材１４や下側竪樋１２ｂに外嵌させることによって形成されてもよい。 Moreover, in the rainwater intake device of the present invention, it is not always necessary to have a connecting pipe, and a water receiving portion that can receive rainwater flowing out from the mesh filter according to the tubular filtration member, below the tubular filtration member. Should just be provided. That is, for example, as shown in FIG. 10A, a cylindrical shape disposed around the lower peripheral wall 18 b and the lower peripheral wall 18 b of the cylindrical filter member 14, on the outer lower side of the cylindrical filter member 14. The rain water intake device 10b provided with the water receiving part 26a formed by the side wall 53, the bottom 54 connecting the lower peripheral wall 18b and the lower edge of the side wall 53 may be used. Alternatively, it is formed by the lower ridge 12b, a cylindrical side wall 53 disposed around the lower ridge 12b, and a bottom portion 54 that connects the lower ridge 12b and the lower edge periphery of the side wall 53. Alternatively, the water receiving unit 26b may be provided. Further, as shown in FIG. 5B, a side wall 53a is provided around the lower circumferential wall 18b or the lower flange 12b obliquely upward, so that a funnel-like shape is formed on the outer lower side of the tubular filter member 14. The rain water intake device 10c provided with the water receiving portion 26c may be used. The water receiving portions 26a to 26c according to these aspects may be formed integrally with the tubular filtration member 14, or separate tubular members previously formed on the side wall 53, the bottom portion 54, etc. It may be formed by fitting the filter member 14 or the lower flange 12b.

また、本発明に係る筒状濾過部材において、メッシュフィルターの外周面に配設される導水部材は、各図に示したように複数配設される必要はなく、少なくとも１の導水部材がメッシュフィルターの外周面に配設されていれば、雨水を効率よく取水することができる。但し、取水効率の更なる向上を図るという観点から、２以上の複数の導水部材を配設することが好ましい。 Further, in the cylindrical filtration member according to the present invention, it is not necessary that a plurality of water guiding members disposed on the outer peripheral surface of the mesh filter as illustrated in each drawing, and at least one water guiding member is a mesh filter. If it is arrange | positioned at the outer peripheral surface, rainwater can be taken in efficiently. However, from the viewpoint of further improving the water intake efficiency, it is preferable to dispose two or more water guide members.

更に、この導水部材は接着剤等で固定されてもよいが、着脱式、或いは上下方向に可動式とすることが好ましい。導水部材をメッシュフィルターの外周面から着脱自在とすることによって、メッシュフィルターの清掃作業を更に容易に行い得る。特に、図８に示した筒状濾過部材４５ｂの態様では、雨水の流出箇所におけるメッシュフィルター２０の外周面が導水部材２３で覆われており、直接ブラシ等で清掃することは困難であるが、この導水部材２３を筒状濾過部材４５ｂから取り外す、或いは上方向に移動させて雨水の流出箇所に係るメッシュフィルター２０を露出させることによって、メッシュフィルター２０の清掃作業を容易に行うことができる。 Further, the water guiding member may be fixed with an adhesive or the like, but is preferably detachable or movable in the vertical direction. By making the water guide member detachable from the outer peripheral surface of the mesh filter, the mesh filter can be cleaned more easily. In particular, in the aspect of the cylindrical filtration member 45b shown in FIG. 8, the outer peripheral surface of the mesh filter 20 at the rainwater outflow location is covered with the water guiding member 23, and it is difficult to clean it directly with a brush or the like. By removing the water guide member 23 from the tubular filter member 45b or moving it upward to expose the mesh filter 20 associated with the rainwater outflow location, the mesh filter 20 can be easily cleaned.

また更に、本発明の雨水取水装置の材質も、塩ビ、ステンレス、鉄、銅等、特に限定されず、本発明に係る筒状濾過部材や連結管の水平方向外断面形状も特に限定されず、竪樋の形状に合わせて、円形や正方形等とすることができる。 Furthermore, the material of the rainwater intake device of the present invention is not particularly limited, such as PVC, stainless steel, iron, copper, etc., and the horizontal outer cross-sectional shape of the tubular filtration member and the connecting pipe according to the present invention is not particularly limited, It can be round or square according to the shape of the ridge.

本発明の実施形態に係る雨水取水装置の一部破壊断面図である。It is a partially broken sectional view of the rainwater intake device according to the embodiment of the present invention. 図１に示した雨水取水装置に係る筒状濾過部材の側面図である。It is a side view of the cylindrical filtration member which concerns on the rainwater intake device shown in FIG. 本発明の雨水取水装置の他の実施形態を示した断面図である。It is sectional drawing which showed other embodiment of the rainwater intake device of this invention. 本発明に係る筒状濾過部材の他の実施形態を示した上部拡大断面図である。It is the upper part expanded sectional view which showed other embodiment of the cylindrical filtration member which concerns on this invention. 本発明に係る筒状濾過部材の他の実施形態を示した下部拡大断面図である。It is the lower part expanded sectional view which showed other embodiment of the cylindrical filtration member which concerns on this invention. 本発明に係る筒状濾過部材の他の実施形態を示した断面図である。It is sectional drawing which showed other embodiment of the cylindrical filtration member which concerns on this invention. 本発明に係る筒状濾過部材の他の実施形態を示した上部拡大断面図である。It is the upper part expanded sectional view which showed other embodiment of the cylindrical filtration member which concerns on this invention. 本発明に係る筒状濾過部材の他の実施形態を示した断面図である。It is sectional drawing which showed other embodiment of the cylindrical filtration member which concerns on this invention. 本発明に係る筒状濾過部材の他の実施形態を示した上部拡大断面図である。It is the upper part expanded sectional view which showed other embodiment of the cylindrical filtration member which concerns on this invention. 本発明に係る連結管の他の実施形態を示した部分拡大断面図である。It is the elements on larger scale which showed other embodiments of the connecting pipe concerning the present invention. 本発明に係る受水部の他の実施形態を示した断面図である。It is sectional drawing which showed other embodiment of the water receiving part which concerns on this invention. 従来の雨水取水継手の断面図である。It is sectional drawing of the conventional rainwater intake joint. 従来の雨水分岐装置の断面図である。It is sectional drawing of the conventional rainwater branching apparatus.

符号の説明Explanation of symbols

１０、１０ａ：雨水取水装置
１２ａ：上側竪樋
１２ｂ：下側竪樋
１４、１４ａ、４５、４５ａ、４５ｂ：筒状濾過部材
１６：連結管
１７ａ：上部筒状部
１７ｂ：下部筒状部
１８ａ：上側周壁
１８ｂ：下側周壁
２０：メッシュフィルター
２１：筒状濾過部材の下端部
２２、２３：導水部材
２３ａ：導水部材の下面
２４：段差部
２６、２６ａ〜２６ｃ：受水部
２８：取水管
４０ａ、４０ｂ：境界部
４１：上側周壁の下端内周縁部
４２：下側周壁の上端内周縁部
４６、４６ａ、４６ｂ：雨水誘導部材
４８：雨水誘導部材の上端内周縁部
４９：雨水誘導部材の下端内周縁部
５１：雨水誘導部材の上側内周縁部
５２：雨水誘導部材の下側内周縁部
５５：雨水誘導部材の内周面 DESCRIPTION OF SYMBOLS 10, 10a: Rainwater intake device 12a: Upper side hook 12b: Lower side pole 14, 14a, 45, 45a, 45b: Cylindrical filtration member 16: Connecting pipe 17a: Upper cylindrical part 17b: Lower cylindrical part 18a: Upper peripheral wall 18b: Lower peripheral wall 20: Mesh filter 21: Lower end portion of cylindrical filtration member 22, 23: Water guide member 23a: Lower surface of water guide member 24: Stepped portions 26, 26a to 26c: Water receiving portion 28: Intake pipe 40a 40b: Boundary portion 41: Inner peripheral edge at the lower end of the upper peripheral wall 42: Upper peripheral edge at the upper end of the lower peripheral wall 46, 46a, 46b: Rainwater guide member 48: Inner peripheral edge at the rainwater guide member 49: Lower end of the rainwater guide member Inner peripheral edge 51: Upper inner peripheral edge of rainwater guiding member 52: Lower inner peripheral edge of rainwater guiding member 55: Inner peripheral surface of rainwater guiding member

Claims

竪樋の途中に取り付けられ、該竪樋を流れる雨水の一部を取水するための取水装置であって、
筒状をなし、且つ周壁の中間部がメッシュフィルターで形成された筒状濾過部材と、
該筒状濾過部材の外側下方に設けられ、前記メッシュフィルターから前記筒状濾過部材の外側へ流出した雨水を受ける受水部と、
を含んで構成され、
前記受水部は、該受水部に設けられた取水管によって外部と連通し、
前記メッシュフィルターの外周面に、少なくとも１の導水部材が配設され、
前記周壁のうち、前記メッシュフィルターの部分以外の上側周壁及び下側周壁と、前記メッシュフィルターの境界部において、前記上側周壁の下端内周縁部及び／又は前記下側周壁の上端内周縁部が面取りされたことを特徴とする雨水取水装置。 A water intake device that is attached in the middle of a reed and takes a part of rainwater flowing through the reed,
A cylindrical filtration member having a cylindrical shape and having an intermediate portion of the peripheral wall formed of a mesh filter;
A water receiving portion that is provided on the outer lower side of the cylindrical filtration member, and receives rainwater that has flowed out of the cylindrical filter member from the mesh filter;
Comprising
The water receiving part communicates with the outside by a water intake pipe provided in the water receiving part,
At least one water guide member is disposed on the outer peripheral surface of the mesh filter ,
Among the peripheral walls, the upper peripheral wall and the lower peripheral wall other than the mesh filter portion, and the lower end inner peripheral edge of the upper peripheral wall and / or the upper inner peripheral edge of the lower peripheral wall are chamfered at the boundary of the mesh filter. A rainwater intake device characterized by that .

上部筒状部と、該上部筒状部の内径より小さい内径を有する下部筒状部とが段差部を介して連結された連結管を含み、
前記筒状濾過部材の下端部を、前記上部筒状部側から挿入することによって、前記周壁、前記上部筒状部及び前記段差部により前記受水部が形成された請求項１に記載の雨水取水装置。 Including a connecting pipe in which an upper cylindrical portion and a lower cylindrical portion having an inner diameter smaller than the inner diameter of the upper cylindrical portion are connected via a stepped portion;
The rainwater according to claim 1, wherein the water receiving portion is formed by the peripheral wall, the upper cylindrical portion, and the stepped portion by inserting a lower end portion of the cylindrical filtration member from the upper cylindrical portion side. Intake device.

前記導水部材の上面が、前記筒状濾過部材の外側に向かって斜め下方向に傾斜している請求項１又は請求項２に記載の雨水取水装置。 The rainwater intake apparatus according to claim 1 or 2 , wherein an upper surface of the water guide member is inclined obliquely downward toward an outer side of the cylindrical filtration member.

前記導水部材が配設された位置に対応する前記メッシュフィルターの内周面に、筒状の雨水誘導部材が内嵌された請求項１から請求項３の何れかに記載の雨水取水装置。 The rainwater intake apparatus according to any one of claims 1 to 3 , wherein a cylindrical rainwater guiding member is fitted into an inner peripheral surface of the mesh filter corresponding to a position where the water guiding member is disposed.

前記筒状の雨水誘導部材の下端内周縁部及び／又は該筒状の雨水誘導部材の上端内周縁部が面取りされた請求項４に記載の雨水取水装置。 The rainwater intake apparatus according to claim 4 , wherein the inner peripheral edge at the lower end of the tubular rainwater guiding member and / or the inner peripheral edge at the upper end of the tubular rainwater guiding member are chamfered.

前記導水部材の下面が、前記筒状濾過部材の外側に向かって斜め下方向に傾斜し、
前記筒状の雨水誘導部材の下端内周縁部が面取りされ、
該面取りされた筒状の雨水誘導部材の下端内周縁部と前記下面の上端部とが、前記メッシュフィルターを間にして滑らかに隣接している請求項４又は請求項５に記載の雨水取水装置。 The lower surface of the water guiding member is inclined obliquely downward toward the outside of the cylindrical filtration member,
The inner peripheral edge at the lower end of the cylindrical rainwater guiding member is chamfered,
The rainwater intake apparatus according to claim 4 or 5 , wherein an inner peripheral edge portion of the lower end of the cylindrical rainwater guide member chamfered and an upper end portion of the lower surface are smoothly adjacent to each other with the mesh filter interposed therebetween. .

前記メッシュフィルターの内周面に、螺旋状の雨水誘導部材が内嵌された請求項１から請求項３の何れかに記載の雨水取水装置。 The rainwater intake apparatus according to any one of claims 1 to 3 , wherein a spiral rainwater guide member is fitted into an inner peripheral surface of the mesh filter.

前記螺旋状の雨水誘導部材の上側内周縁部及び／又は該螺旋状の雨水誘導部材の下側内周縁部が面取りされた請求項７に記載の雨水取水装置。 The rainwater intake apparatus according to claim 7 , wherein the upper inner peripheral edge of the spiral rainwater guide member and / or the lower inner peripheral edge of the spiral rainwater guide member are chamfered.

前記導水部材が着脱自在である請求項１から請求項８の何れかに記載の雨水取水装置。 The rainwater intake device according to any one of claims 1 to 8 , wherein the water guide member is detachable.