JP5935185B2 - Rainwater penetration - Google Patents

Rainwater penetration Download PDF

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JP5935185B2
JP5935185B2 JP2012162984A JP2012162984A JP5935185B2 JP 5935185 B2 JP5935185 B2 JP 5935185B2 JP 2012162984 A JP2012162984 A JP 2012162984A JP 2012162984 A JP2012162984 A JP 2012162984A JP 5935185 B2 JP5935185 B2 JP 5935185B2
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peripheral wall
wall body
water
rainwater
permeable
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JP2014020180A (en
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岡本 晃
晃 岡本
昌広 堀
昌広 堀
大石 幸徳
幸徳 大石
隆文 荒原
隆文 荒原
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Aron Kasei Co Ltd
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Aron Kasei Co Ltd
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本発明は、雨水を一時的に貯留し、その貯留した雨水を地中に浸透させて排出する雨水浸透枡に関するものである。   The present invention relates to a rainwater infiltration tub that temporarily stores rainwater and permeates the stored rainwater into the ground and discharges it.

従来、上記のような雨水浸透枡として、コンクリート製の重量が嵩むものに代わり、例えば特許文献1に示されるような、合成樹脂製の軽量なものが提供されている。この特許文献1には、合成樹脂製の面板部材と側板部材とを、凹凸嵌合によって結合する構成とすることにより、嵩張ることのない態様で輸送し、輸送コスト低減を図ることが開示されている。
また上記のような合成樹脂製の雨水浸透枡として、より簡易な構成とするべく、底板と該底板の周縁に立設された複数の側板からなる周壁により、枡本体を中空の箱状とし、該枡本体の内部に雨水を一時的に貯留するとともに、該底板や該周壁に透水孔を貫設しておき、該透水孔から雨水を徐々に地中に浸透させるように構成したものが提供されている。このような雨水浸透枡においては、透水孔から枡本体の内部に土砂等の異物が侵入することを防止するため、不織布等からなる透水シートで枡本体の全体を被覆している。この透水シートは、主に一枚の大きなシート材で構成され、いわば風呂敷のように用いることで枡本体の全体を包み込むものであるが、上記雨水浸透枡を設置するべく地面に掘削された狭小な穴内で枡本体を包み込む作業が極めて煩雑となっていた。
そこで、特許文献2に示されるように、透水シートを、底板を被覆する底板用透水シートと、周壁を被覆する周壁用透水シートとに分けることで、枡本体を包み込む作業を簡易化した雨水浸透枡が提案されている。
Conventionally, as a rainwater permeation cage as described above, a lightweight product made of a synthetic resin as shown in, for example, Patent Document 1 is provided instead of a heavy product made of concrete. This Patent Document 1 discloses that a synthetic resin face plate member and a side plate member are coupled by concave-convex fitting so that they can be transported in a non-bulky manner to reduce transportation costs. Yes.
In addition, as a rainwater permeation cage made of synthetic resin as described above, the cage body is formed into a hollow box shape by a peripheral wall composed of a bottom plate and a plurality of side plates erected on the periphery of the bottom plate in order to have a simpler configuration, Provided is a structure in which rainwater is temporarily stored inside the main body of the fence, and a water-permeable hole is provided in the bottom plate and the peripheral wall so that the rainwater gradually permeates into the ground from the water-permeable hole. Has been. In such a rainwater permeation cage, in order to prevent foreign substances such as earth and sand from entering the interior of the cage body from the water-permeable holes, the entire body of the cage is covered with a water-permeable sheet made of a nonwoven fabric or the like. This water-permeable sheet is mainly composed of a single large sheet material, so to speak, it wraps the entire body of the kite by using it like a furoshiki, but it is a narrow excavated on the ground to install the rainwater penetration kite The operation of wrapping the bag body in a hole is extremely complicated.
Therefore, as shown in Patent Document 2, the permeation sheet is divided into a permeation sheet for a bottom plate that covers the bottom plate and a permeation sheet for the peripheral wall that covers the peripheral wall, thereby simplifying the operation of wrapping the bag body.枡 has been proposed.

特許第3400439号公報Japanese Patent No. 34004339 特開2007−32025号公報JP 2007-32025 A

ところが、上記従来の透水シートを底板用と周壁用に分けた雨水浸透枡は、穴の底に底板用透水シートを敷設し、該底板用透水シート上に底板を置き、周壁を該底板に取り付けるという設置作業を必要とするが、底板用透水シートと底板の位置がずれることがあり、狭小な穴内での位置の修正が煩雑であるという問題がある。また上記雨水浸透枡を工場内等である程度組み立てた状態とし、これを施工現場に搬送することも考えられたが、浸透枡の保管時や搬送時に透水シートが破れないように、該透水シートを別途包装材で保護する必要があるという問題があった。   However, in the rainwater permeation cage in which the conventional water-permeable sheet is divided into a bottom plate and a peripheral wall, the bottom plate water-permeable sheet is laid on the bottom of the hole, the bottom plate is placed on the bottom plate, and the peripheral wall is attached to the bottom plate. However, there is a problem that the positions of the water-permeable sheet for the bottom plate and the bottom plate may be shifted, and the correction of the position in the narrow hole is complicated. In addition, it was considered that the rainwater permeation cage was assembled to some extent in the factory and transported to the construction site.However, the permeation sheet was placed so that the permeation sheet was not torn during storage or transportation. There was a problem that it was necessary to protect with a separate packaging material.

本発明は、このような従来技術に存在する問題点に着目してなされたものである。その目的とするところは、設置作業を簡単で容易なものとすることが可能な雨水浸透枡を提供することにある。   The present invention has been made paying attention to such problems existing in the prior art. The object is to provide a rainwater infiltration tub that can make installation work simple and easy.

上記の目的を達成するために、請求項1に記載の雨水浸透枡は、地中に埋設され、雨水を内部に貯留して徐々に地中に浸透させるべく使用される雨水浸透枡であって、上記雨水を内部に貯留するべく中空状とされた枡本体と、該枡本体を覆う透水シートとを備え、上記枡本体は、上面の周縁部に嵌合溝が凹状に形成されている底板と、該底板の周縁部に立設される筒状の周壁体とを有しており、組み立てに際して該嵌合溝の内側に該周壁体の下端部が嵌入されるように構成されたものであり、また上記枡本体にあっては該枡本体の内部に貯留された雨水を外部へ排出するべく、上記周壁体に複数の壁部透水孔が貫通形成されるとともに、上記底板に複数の底部透水孔が上記嵌合溝の内側にのみ貫通形成されており、更に上記枡本体にあっては、上記嵌合溝の内側に上記周壁体の下端部が嵌入された状態における上記底部透水孔を介した上記枡本体の内部から外部への雨水の排出を確保するべく、底部透水孔開放手段が設けられており、上記透水シートは、透水性を有する材料を用いて形成され、上記底板を覆うべく対応する部位を有しておらず、上記周壁体を覆うべく対応する部位のみによって構成されたものであり、上記透水シートにあっては、上記周壁体の外面又は内面を被覆する周壁被覆部と、該周壁被覆部の下端から延設されて上記周壁体の下端で該周壁体の内面又は外面に折り返される折返部と、を有しており、上記枡本体の組み立てに際して上記透水シートの上記折返部が上記周壁体の下端部とともに上記嵌合溝の内側に嵌入されることで、上記折返部で上記底部透水孔を上記嵌合溝の内側から覆うように構成したことを要旨とする。
請求項2に記載の発明は、請求項1に記載の雨水浸透枡の発明において、上記底部透水孔開放手段は、上記周壁体の横断面形状を波形状としたうえで、該波形状で該周壁体の内面から外面へ向かって凹む部位に、上記底部透水孔の位置を対応させて構成されることを要旨とする。
請求項3に記載の発明は、請求項1に記載の雨水浸透枡の発明において、上記底部透水孔開放手段は、上記周壁体を、その横断面形状を波形状とするか、または平板状とし、かつ内面側の少なくとも下端部に上記底板の嵌合溝の内側に入り込むリブが設けられているものとしたうえで、該リブの上記底部透水孔と対応する位置に、該底部透水孔と上記枡本体の内部とを連通させる連通孔を貫通形成して構成されることを要旨とする。
請求項4に記載の発明は、請求項1から請求項3のうち何れか一項に記載の雨水浸透枡の発明において、上記枡本体は、更に上記周壁体の上端部に取り付けられる天板を有しており、上記天板には、上記枡本体の内部に雨水を導くための導水孔が設けられるとともに、上記周壁体の上端部が嵌入される嵌入溝が下面の周縁部に凹状に形成されており、上記透水シートには、上記周壁被覆部の上端から延設されて上記周壁体の上端で該周壁体の内面又は外面に折り返される上側折返部を設け、上記枡本体の組み立てに際して上記透水シートの上記上側折返部が上記周壁体の上端部とともに上記嵌入溝の内側に嵌入されるように構成したことを要旨とする。
In order to achieve the above-mentioned object, the rainwater infiltration trough according to claim 1 is a rainwater infiltration trough embedded in the ground and used to store rainwater inside and gradually infiltrate it into the ground. A bottom plate having a hollow main body that is hollow to store rainwater therein, and a water-permeable sheet that covers the main body, and wherein the main body has a concave groove on the periphery of the upper surface. And a cylindrical peripheral wall body erected on the peripheral edge portion of the bottom plate, and is configured such that the lower end portion of the peripheral wall body is fitted inside the fitting groove during assembly. A plurality of wall water-permeable holes are formed in the peripheral wall body and the bottom plate has a plurality of bottom portions in order to discharge rainwater stored inside the bag body to the outside. A water-permeable hole is formed only through the inside of the fitting groove. In order to ensure the drainage of rainwater from the inside of the bag main body to the outside through the bottom water permeable hole in a state where the lower end portion of the peripheral wall body is fitted inside the fitting groove, a bottom water permeable hole opening means is provided. The water-permeable sheet is formed using a material having water permeability, and does not have a corresponding part to cover the bottom plate, but is configured only by a corresponding part to cover the peripheral wall body. In the water-permeable sheet, the peripheral wall covering portion that covers the outer surface or the inner surface of the peripheral wall body, and the inner surface or the outer surface of the peripheral wall body that extends from the lower end of the peripheral wall covering portion and that is the lower end of the peripheral wall body. And the folded portion of the water-permeable sheet is fitted inside the fitting groove together with the lower end portion of the peripheral wall body when the heel body is assembled. At bottom bottom water permeability The is summarized in that configured to cover from the inside of the fitting groove.
According to a second aspect of the present invention, in the rainwater infiltration basin of the first aspect, the bottom permeation hole opening means has a corrugated cross-sectional shape of the peripheral wall body, and the corrugated shape The gist is that the position of the bottom water-permeable hole is made to correspond to a portion recessed from the inner surface to the outer surface of the peripheral wall body.
According to a third aspect of the present invention, in the rainwater infiltration basin of the first aspect, the bottom permeation hole opening means is configured such that the peripheral wall body has a wave-like cross-sectional shape or a flat plate shape. In addition, at least the lower end portion on the inner surface side is provided with a rib that enters the inside of the fitting groove of the bottom plate, and the bottom water-permeable hole and the above-described position at a position corresponding to the bottom water-permeable hole of the rib The gist of the present invention is that it is formed by penetrating a communication hole that communicates with the inside of the bag main body.
According to a fourth aspect of the present invention, in the rainwater infiltration basin according to any one of the first to third aspects, the basin body further includes a top plate attached to the upper end of the peripheral wall body. The top plate is provided with a water introduction hole for guiding rainwater to the inside of the main body, and a fitting groove into which the upper end portion of the peripheral wall body is fitted is formed in a concave shape on the peripheral portion of the lower surface. The water-permeable sheet is provided with an upper folded portion that extends from the upper end of the peripheral wall covering portion and is folded back to the inner surface or the outer surface of the peripheral wall body at the upper end of the peripheral wall body. The gist is that the upper folded portion of the water-permeable sheet is configured to be fitted inside the fitting groove together with the upper end portion of the peripheral wall body.

〔作用〕
本発明の雨水浸透枡は、周壁体の下端部が嵌入される嵌合溝を底板の周縁部に設け、枡本体の内部に貯留された雨水を外部へ排出する底部透水孔を、該嵌合溝の内側にのみ形成している。また透水シートには、周壁体の外面又は内面を被覆する周壁被覆部と、周壁体の下端で該周壁体の内面又は外面に折り返される折返部とが設けられている。該透水シートの折返部は、周壁体の下端部とともに上記嵌合溝に嵌入され、該嵌合溝の内側から該底部透水孔を覆うように構成されている。従って本発明の雨水浸透枡は、該透水シートの折返部により、底部透水孔を介した枡本体の内部から外部への雨水の排出を許容しつつ、枡本体の外部から内部への土砂等の侵入を規制することができるため、底部透水孔を枡本体の外部から透水シートで覆う必要がなく、透水シートとして枡本体の底板を覆うべく対応する部位を有していない。そして、本発明の雨水浸透枡によれば、底板用の透水シートを敷設する作業を省略することができ、また設置時等に透水シートと底板の位置ずれも気にしなくてよいため、設置作業が簡単で容易なものとすることができる。
更に本発明の雨水浸透枡は、工場等で組み立てた状態とし、これを施工現場にてそのまま設置できるという利点を有する。すなわち、従来の雨水浸透枡であれば、少なくとも穴の底で底板用の透水シートを敷設する作業を要したが、本発明の雨水浸透枡は底板用の透水シートを必要としないため、施工現場に搬入された雨水浸透枡を略そのまま穴内に設置することができる。
組み立てた状態の雨水浸透枡を保管や搬送等する場合、透水シートは、雨水浸透枡の底面や底部の角部が何れかの箇所に当たったり擦れたりすることで破れることが多い。本発明の雨水浸透枡において、周壁体は、その下端部が底板の周縁部に設けられた嵌合溝に嵌入される構成となっており、周壁体の外面は、底板の外周面に比べ、枡本体の内部寄りに位置しており、透水シートの折返部は嵌合溝の内側に位置している。従って、枡本体の周壁体の外面を透水シートで被覆した状態で保管や搬送等しても、何れかの箇所に当たったり擦れたりしやすい底面や底部の角部で透水シートが外部に露出しておらず、また周壁体の外面よりもまず先に底板の外周面が当たったり擦れたりするため、保管時や搬送時等に透水シートが破れにくい。このため、枡本体の周壁体の外面を透水シートで被覆した場合に、該周壁体の外面のみを簡易的に包装等するのみで、搬送等に耐えるものとすることが可能であるとともに、施工現場における雨水浸透枡の組み立て作業を簡易なものとすることができる。
また本発明の雨水浸透枡は、嵌合溝の内側に周壁体の下端部が嵌入された状態での底部透水孔を介した枡本体の内部から外部への雨水の排出を確保するために底部透水孔開放手段が設けられる。該底部透水孔開放手段として、周壁体の横断面形状を波形状とし、該波形状で該周壁体の内面から外面へ向かって凹む部位に底部透水孔の位置を対応するように構成した場合、横断面形状を波形状とすることで該周壁体の強度の向上を図りつつ、該底部透水孔の位置を対応させるという簡易な構成で、底部透水孔からの雨水の排出を確実に確保することができる。他に、例えば横断面形状を波形状とするか、または平板状とした周壁体の下端部に補強のための板状のリブを設けたりする場合であって、該リブが上記底板の嵌合溝の内側に入り込む場合であっても、該底部透水孔開放手段として、該リブの底部透水孔と対応する位置に連通孔を貫通形成するという簡易な構成で、底部透水孔からの雨水の排出を確実に確保することができる。
また上記枡本体は、上記底板と上記周壁体に加え、雨水を導くための導水孔が設けられた天板を設けて構成されるが、該天板の下面の周縁部に周壁体の上端部が嵌入される嵌入溝を設け、更に透水シートに上側折返部を設け、該上側折返部を周壁体の上端部とともに上記嵌入溝の内側に嵌入することで、透水シートを簡易な構成で周壁体の表面上に固定することができるとともに、上記した折返部と同様に、搬送時等に透水シートを破れにくくすることができる。
[Action]
The rainwater infiltration trough of the present invention has a fitting groove into which the lower end portion of the peripheral wall body is fitted in the peripheral portion of the bottom plate, and the bottom permeation hole that discharges rainwater stored in the inside of the trough body to the outside. It is formed only inside the groove. The water-permeable sheet is provided with a peripheral wall covering portion that covers the outer surface or inner surface of the peripheral wall body, and a folded portion that is folded back to the inner surface or outer surface of the peripheral wall body at the lower end of the peripheral wall body. The folded portion of the water permeable sheet is inserted into the fitting groove together with the lower end portion of the peripheral wall body, and is configured to cover the bottom water permeable hole from the inside of the fitting groove. Therefore, the rainwater infiltration trough of the present invention allows the drainage of rainwater from the inside of the dredge body to the outside through the bottom permeation hole by the folded portion of the water permeable sheet, while the earth and sand from the outside of the dredge body to the inside, etc. Since intrusion can be restricted, it is not necessary to cover the bottom water-permeable hole with the water-permeable sheet from the outside of the cocoon body, and there is no corresponding portion to cover the bottom plate of the cocoon body as the water-permeable sheet. And according to the rainwater infiltration trough of the present invention, it is possible to omit the work of laying a permeable sheet for the bottom plate, and it is not necessary to worry about the misalignment of the permeable sheet and the bottom plate during installation. Can be simple and easy.
Furthermore, the rainwater infiltration cage of the present invention is in an assembled state at a factory or the like, and has an advantage that it can be installed as it is at a construction site. That is, in the case of the conventional rainwater permeation dredging, it was necessary to lay a water permeable sheet for the bottom plate at least at the bottom of the hole. The rainwater infiltrated tank carried in can be installed in the hole almost as it is.
When storing or transporting the assembled rainwater-permeable persimmon, the water-permeable sheet is often torn when the bottom or bottom corners of the rainwater-permeable persimmon hit or rub against any part. In the rainwater infiltration trough of the present invention, the peripheral wall body is configured such that its lower end is fitted into a fitting groove provided in the peripheral edge of the bottom plate, and the outer surface of the peripheral wall body is compared to the outer peripheral surface of the bottom plate, The foldable portion of the water-permeable sheet is located inside the fitting groove. Therefore, even when stored or transported with the outer surface of the peripheral wall body of the bag body covered with a water permeable sheet, the water permeable sheet is exposed to the outside at the bottom or the corner of the bottom where it easily hits or rubs. In addition, since the outer peripheral surface of the bottom plate hits or rubs first before the outer surface of the peripheral wall body, the water-permeable sheet is not easily torn during storage or transportation. For this reason, when the outer surface of the peripheral wall body of the bag body is covered with a water-permeable sheet, it is possible to withstand conveyance etc. by simply packaging only the outer surface of the peripheral wall body. It is possible to simplify the assembly work of the rainwater infiltration tank on site.
In addition, the rainwater penetration rod of the present invention has a bottom portion for ensuring the drainage of rainwater from the inside of the rod body to the outside through the bottom water-permeable hole in a state where the lower end portion of the peripheral wall body is fitted inside the fitting groove. A water permeable hole opening means is provided. When the bottom water-permeable hole opening means is configured such that the cross-sectional shape of the peripheral wall body is corrugated, and the corrugated shape corresponds to the position of the bottom water-permeable hole corresponding to the portion recessed from the inner surface to the outer surface of the peripheral wall body, By ensuring the cross-sectional shape is corrugated and improving the strength of the peripheral wall body, it is possible to ensure the drainage of rainwater from the bottom permeation hole with a simple configuration that corresponds to the position of the bottom permeation hole. Can do. In addition, for example, when a plate-like rib for reinforcement is provided at the lower end portion of the peripheral wall body having a cross-sectional wave shape or a flat plate shape, the rib is fitted to the bottom plate. Even when entering the inside of the groove, drainage of rainwater from the bottom permeation hole can be achieved with a simple configuration in which the communication hole is formed at a position corresponding to the bottom permeation hole of the rib as the bottom permeation hole opening means. Can be ensured.
In addition to the bottom plate and the peripheral wall body, the main body is provided with a top plate provided with water guide holes for guiding rainwater. The upper end portion of the peripheral wall body is provided at the peripheral edge of the lower surface of the top plate. The permeable sheet is provided with a simple configuration by providing an insertion groove into which the permeable sheet is inserted, further providing an upper folded portion on the water permeable sheet, and inserting the upper folded portion together with the upper end portion of the circumferential wall body into the fitting groove. As well as the folded portion described above, the water permeable sheet can be made difficult to tear during transportation and the like.

〔効果〕
本発明にあっては、簡単で容易に設置することができる雨水浸透枡を提供することが出来る。
〔effect〕
In the present invention, it is possible to provide a rainwater permeation trough that can be easily and easily installed.

実施形態の雨水浸透枡を示す分解斜視図。The disassembled perspective view which shows the rainwater penetration penetrant of embodiment. 組み立てた状態の雨水浸透枡を示す部分拡大縦断面図。The partial expanded longitudinal cross-sectional view which shows the rainwater permeable ridge of the assembled state. 底板の嵌合溝に周壁体の下端を嵌入した状態を示す部分拡大横断面図。The partial expanded sectional view which shows the state which inserted the lower end of the surrounding wall body in the fitting groove of the baseplate. 実施形態の雨水浸透枡を設置した状態を示す概略図。Schematic which shows the state which installed the rainwater osmosis | basket of embodiment. 別形態の雨水浸透枡を設置した状態を示す概略図。Schematic which shows the state which installed the rainwater penetration tank of another form. (a),(b)は別形態の周壁体を示す部分拡大斜視図。(A), (b) is a partial expansion perspective view which shows the surrounding wall body of another form. 別形態の枡本体を示す(a)は周壁体の斜視図、(b)は底板の平面図。(A) which shows the bag main body of another form is a perspective view of a surrounding wall body, (b) is a top view of a baseplate.

以下、本発明の雨水浸透枡を具体化した一実施形態について説明する。
図1に示すように、雨水浸透枡10は、雨水を貯留するための枡本体11と、該枡本体11の外面を覆う透水シート12とを備えている。
前記枡本体11は、平面視で略正方形状をなす底板15と、四角筒状をなす周壁体16と、平面視で略正方形状をなす天板17とにより、中空の四角箱状に形成されている。また枡本体11は、軽量化を図るべく、底板15、周壁体16及び天板17が合成樹脂を材料に用いて形成されている。
Hereinafter, an embodiment embodying the rainwater infiltration tank of the present invention will be described.
As shown in FIG. 1, the rainwater penetrating gutter 10 includes a gutter body 11 for storing rainwater and a water permeable sheet 12 that covers the outer surface of the gutter body 11.
The saddle body 11 is formed in a hollow square box shape by a bottom plate 15 having a substantially square shape in a plan view, a peripheral wall body 16 having a rectangular tube shape, and a top plate 17 having a substantially square shape in a plan view. ing. Further, in the bag main body 11, a bottom plate 15, a peripheral wall body 16, and a top plate 17 are formed using a synthetic resin as a material in order to reduce the weight.

前記底板15の上面の周縁部には、周壁体16の下端部を嵌合するための嵌合溝21が、上記周壁体16の平面形状と対応するように平面視で四角環状に、かつ縦断面形状が凹字状となるように形成されている。該嵌合溝21の内側で内底面には、複数の底部透水孔22Aが貫通形成されている。該底部透水孔22Aは、枡本体11の内部に貯留された雨水を地中へ排出するためのものであり、該嵌合溝21の内側にのみ設けられており、該該嵌合溝21の内側を除く底板15の他の箇所には設けられていない。   A fitting groove 21 for fitting the lower end portion of the peripheral wall body 16 is formed in a rectangular shape in a plan view in a plan view so as to correspond to the planar shape of the peripheral wall body 16 at the peripheral edge portion of the upper surface of the bottom plate 15. The surface shape is formed in a concave shape. A plurality of bottom water-permeable holes 22 </ b> A are formed through the inner bottom surface inside the fitting groove 21. The bottom water-permeable hole 22A is for discharging rainwater stored in the main body 11 into the ground, and is provided only inside the fitting groove 21. It is not provided in the other location of the baseplate 15 except an inner side.

前記周壁体16は、4枚の側板16Aを連結して構成されたものである。つまり該側板16Aは、一側縁に凹凸状をなす嵌合雌部25が設けられるとともに、他側縁に該嵌合雌部25と対応する凹凸状をなす嵌合雄部26が設けられており、これら嵌合雌部25及び嵌合雄部26を相互に嵌合することにより、側板16A同士を連結することが可能となっている。
上記周壁体16において、側板16Aは、横断面形状が波形状とされており、土圧に耐えられる剛性を付与されている。また側板16Aには、補強のためのリブ27が設けられている。
そして周壁体16を構成する側板16Aには、枡本体11の内部に貯留された雨水を地中へ排出するための複数の壁部透水孔22Bが貫通形成されている。
The peripheral wall body 16 is configured by connecting four side plates 16A. That is, the side plate 16A is provided with a fitting female portion 25 having an uneven shape on one side edge, and a fitting male portion 26 having an uneven shape corresponding to the fitting female portion 25 on the other side edge. The side plates 16A can be connected to each other by fitting the fitting female portion 25 and the fitting male portion 26 to each other.
In the peripheral wall body 16, the side plate 16 </ b> A has a corrugated cross-sectional shape, and is given rigidity to withstand earth pressure. The side plate 16A is provided with a rib 27 for reinforcement.
The side plate 16A constituting the peripheral wall body 16 is formed with a plurality of wall water permeable holes 22B through which rainwater stored in the main body 11 is discharged.

前記天板17の中央部には、導水孔29が透設されている。この導水孔29は、雨水を枡本体11の内部に導くためのものである。また天板17の下面の周縁部には、周壁体16の上端部を嵌入するための嵌入溝30が、上記周壁体16の平面形状と対応するように平面視で四角環状に、かつ縦断面形状が凹字状となるように形成されている(図2を参照)。   A water guide hole 29 is formed in the center of the top plate 17. The water guide hole 29 is for guiding rainwater to the inside of the main body 11. A fitting groove 30 for fitting the upper end portion of the peripheral wall body 16 is formed in a square ring shape in a plan view in a plan view so as to correspond to the planar shape of the peripheral wall body 16 at the peripheral edge portion of the lower surface of the top plate 17. The shape is formed in a concave shape (see FIG. 2).

前記透水シート12は、不織布、透水性フィルム、織布、編布等といった透水性材料からなるシート材を裁断して形成されたものである。該透水シート12は、前記底部透水孔22A及び前記壁部透水孔22Bを被覆し、前記底部透水孔22A及び前記壁部透水孔22Bを介して枡本体11の内部から外部へ雨水が排出されることを許容し、枡本体11の外部から内部へ土砂が入り込むことを規制するものである。
前記透水シート12は、上記周壁体16を覆うべく対応する部位のみによって構成されており、底板15を覆うべく対応する部位を有していない。
The water-permeable sheet 12 is formed by cutting a sheet material made of a water-permeable material such as a nonwoven fabric, a water-permeable film, a woven fabric, and a knitted fabric. The water permeable sheet 12 covers the bottom water permeable hole 22A and the wall water permeable hole 22B, and rainwater is discharged from the inside of the main body 11 to the outside through the bottom water permeable hole 22A and the wall water permeable hole 22B. This allows the earth and sand to enter from the outside to the inside of the main body 11.
The water permeable sheet 12 is configured only by a portion corresponding to cover the peripheral wall body 16, and does not have a portion corresponding to cover the bottom plate 15.

上記透水シート12は、その横幅が周壁体16の外周回りの長さよりも若干長くなり、縦幅が周壁体16の縦幅よりも長くなるように、帯状に形成されている。該透水シート12の上下方向の中央部は、周壁体16の外面を被覆する周壁被覆部31とされている。また透水シート12の下端縁部は、周壁体16の下端で該周壁体16の内面に折り返すことができるようになっており、折返部32とされている。更に透水シート12の上端縁部は、周壁体16の上端で該周壁体16の内面に折り返すことができるようになっており、上側折返部33とされている。   The water permeable sheet 12 is formed in a strip shape such that the lateral width is slightly longer than the length around the outer periphery of the peripheral wall body 16 and the vertical width is longer than the vertical width of the peripheral wall body 16. A central portion in the vertical direction of the water permeable sheet 12 is a peripheral wall covering portion 31 that covers the outer surface of the peripheral wall body 16. Further, the lower edge portion of the water permeable sheet 12 can be folded back to the inner surface of the peripheral wall body 16 at the lower end of the peripheral wall body 16, thereby forming a folded portion 32. Further, the upper end edge of the water permeable sheet 12 can be folded back to the inner surface of the peripheral wall body 16 at the upper end of the peripheral wall body 16, thereby forming an upper folded portion 33.

図2に示すように、上記透水シート12の折返部32は、周壁体16の下端で内面に折り返した状態で、該周壁体16の下端部とともに、底板15の嵌合溝21の内側に嵌入されている。上記透水シート12の上側折返部33もまた、折返部32と同様に、周壁体16の上端で内面に折り返した状態で、該周壁体16の上端部とともに、天板17の嵌入30の内側に嵌入されている。透水シート12は、折返部32及び上側折返部33が周壁体16の下端部及び上端部とともに嵌合溝21及び嵌入30に嵌入されることで、枡本体11の外面上に固定され、位置ずれを抑制される。そして嵌合溝21の内側に嵌入された折返部32は、該嵌合溝21の内側で上記底部透水孔22Aを覆っている。   As shown in FIG. 2, the folded portion 32 of the water permeable sheet 12 is fitted inside the fitting groove 21 of the bottom plate 15 together with the lower end portion of the peripheral wall body 16 in a state of being folded back to the inner surface at the lower end of the peripheral wall body 16. Has been. Similarly to the folded portion 32, the upper folded portion 33 of the water permeable sheet 12 is also folded inside the top wall 17 together with the upper end portion of the peripheral wall body 16 in the state of being folded back to the inner surface at the upper end of the peripheral wall body 16. It is inserted. The water permeable sheet 12 is fixed on the outer surface of the heel body 11 by the folding portion 32 and the upper folding portion 33 being fitted into the fitting groove 21 and the fitting 30 together with the lower end portion and the upper end portion of the peripheral wall body 16, and thus misaligned. Is suppressed. The folded portion 32 fitted inside the fitting groove 21 covers the bottom water permeable hole 22 </ b> A inside the fitting groove 21.

上記枡本体11には、嵌合溝21の内側に周壁体16の下端部が嵌入された状態において、底部透水孔22Aを介した枡本体11の内部から外部への雨水の排出を確保するべく、底部透水孔開放手段が設けられている。すなわち、図3に示すように、底部透水孔開放手段として、上記周壁体16の側壁16Aは、横断面形状が波形状とされている。一方、底板15において、底部透水孔22Aは、波形状とされた該周壁体16の内面から外面へ向かって凹む部位、つまりは内面上で凹む部位と対応する位置となるように形成されている。その結果、周壁体16の下端部が底板15の嵌合溝21に嵌入された状態にあって、底部透水孔22Aは、枡本体11の内部に向けて開口された状態を確保されている。そして、枡本体11の内部で底部に貯留された雨水は、上記透水シート12の折返部32によって邪魔されることなく、底部透水孔22Aを介して外部へ排出される。   In the state where the lower end portion of the peripheral wall body 16 is fitted inside the fitting groove 21, the rain main body 11 is configured to ensure the drainage of rainwater from the inside of the collar body 11 to the outside via the bottom water permeable hole 22 </ b> A. The bottom water-permeable hole opening means is provided. That is, as shown in FIG. 3, the side wall 16 </ b> A of the peripheral wall body 16 has a wave shape as a bottom water-permeable hole opening means. On the other hand, in the bottom plate 15, the bottom water permeable hole 22 </ b> A is formed to be a position corresponding to a portion that is recessed from the inner surface of the peripheral wall body 16 that is wave-shaped toward the outer surface, that is, a portion that is recessed on the inner surface. . As a result, the lower end portion of the peripheral wall body 16 is fitted in the fitting groove 21 of the bottom plate 15, and the bottom water-permeable hole 22 </ b> A is ensured to be opened toward the inside of the main body 11. Then, the rainwater stored at the bottom inside the main body 11 is discharged to the outside through the bottom water permeable hole 22 </ b> A without being interrupted by the folded portion 32 of the water permeable sheet 12.

図4に示すように、上記天板17の導水孔29には、立管部材35が接続される。該立管部材35は、図中で下方から順番に、導水管接続筒36、アジャスター37、蓋38を備えており、これらは互いに連結されている。これらのうち、該導水管接続筒36が前記導水孔29に挿入される。該導水管接続筒36は、雨水を集めるための導水管39を接続可能に構成されている。導水管39を通過した雨水は、該導水管接続筒36及び導水孔29を介して枡本体11の内部へ送り込まれ、貯留されるようになっている。
なお導水管接続筒36と、導水孔29とのとの間には、カゴ(図示略)が介装されており、雨水中のゴミは、カゴによって除去されるようになっている。
アジャスター37は、筒状をなしており、枡本体11の上面から地表までの高さに合わせ、適宜長さ調節される。蓋38は、メンテナンス時等に開放されることにより、枡本体11の内部の状態を確認するために設けられたものである。
さらに工場等で雨水浸透枡10が事前組み立てされる場合は、枡本体11において周壁体16から底板15及び天板17が外れてしまうことを防止するための固定バンド40が設けられている。
As shown in FIG. 4, a standing pipe member 35 is connected to the water guide hole 29 of the top plate 17. The standing pipe member 35 includes a water guide pipe connecting cylinder 36, an adjuster 37, and a lid 38 in order from the bottom in the figure, and these are connected to each other. Among these, the conduit pipe connecting cylinder 36 is inserted into the conduit hole 29. The conduit pipe connection tube 36 is configured to be connectable to a conduit pipe 39 for collecting rainwater. The rainwater that has passed through the water guide pipe 39 is sent into the interior of the main body 11 through the water guide pipe connecting tube 36 and the water guide hole 29 and stored therein.
A basket (not shown) is interposed between the water conduit connecting cylinder 36 and the water conduit hole 29, and dust in rainwater is removed by the basket.
The adjuster 37 has a cylindrical shape, and the length is appropriately adjusted in accordance with the height from the upper surface of the bag main body 11 to the ground surface. The lid 38 is provided for checking the internal state of the bag main body 11 by being opened during maintenance or the like.
Further, when the rainwater penetrating rod 10 is pre-assembled at a factory or the like, a fixing band 40 is provided to prevent the bottom plate 15 and the top plate 17 from being detached from the peripheral wall body 16 in the rod body 11.

上記雨水浸透枡10の設置方法について説明する。
さて、雨水浸透枡10を設置する場合には、まず掘削された穴の底面に底板15を載せ、雨水浸透枡10の設置位置を決める。また、穴の外部においては、予め側板16A同士を連結して周壁体16を形成し、該周壁体16の外面に透水シート12を巻き付け、さらに透水シート12の折返部32及び上側折返部33を内面へ折り返しておく。その後、穴の内部において、周壁体16の下端部を底板15の嵌合溝21に嵌入し、また周壁体16の上端部に天板17を嵌合して、透水シート12の上下両端部を固定した後、該天板17の導水孔29に立管部材35を取り付け、穴を埋め戻すことにより、雨水浸透枡10の設置が完了する。
また上記雨水浸透枡10においては、穴の外部あるいは工場等の施工現場以外の箇所で立管部材35を取り付ける前の状態、つまり枡本体11の周壁体16の外面が透水シート12によって被覆され、さらに固定バンド40によって周壁体16に対する底板15及び天板17の脱着が防止された状態まで組み立て、これを掘削された穴内にそのまま入れてもよい。
A method for installing the rainwater seepage rod 10 will be described.
When installing the rainwater penetrating rod 10, first, the bottom plate 15 is placed on the bottom of the excavated hole, and the installation position of the rainwater penetrating rod 10 is determined. Further, outside the hole, the side plates 16A are connected in advance to form the peripheral wall body 16, the water-permeable sheet 12 is wound around the outer surface of the peripheral wall body 16, and the folded portion 32 and the upper folded portion 33 of the water-permeable sheet 12 are provided. Fold it inside. After that, inside the hole, the lower end portion of the peripheral wall body 16 is fitted into the fitting groove 21 of the bottom plate 15, and the top plate 17 is fitted to the upper end portion of the peripheral wall body 16, so that the upper and lower end portions of the water-permeable sheet 12 are After fixing, the standing pipe member 35 is attached to the water guide hole 29 of the top plate 17 and the hole is backfilled to complete the installation of the rainwater infiltration rod 10.
Moreover, in the rainwater penetration rod 10, the state before attaching the standing pipe member 35 outside the hole or at a place other than the construction site such as a factory, that is, the outer surface of the peripheral wall body 16 of the rod body 11 is covered with the water permeable sheet 12. Furthermore, it may be assembled until the bottom plate 15 and the top plate 17 are prevented from being attached to and detached from the peripheral wall body 16 by the fixing band 40, and this may be put directly into the excavated hole.

上記雨水浸透枡10の設置作業において、底板15用の透水シートを敷設する必要はなく、当然、底板15用の透水シートと底板15の位置ずれを気にする必要はなく、位置ずれを修正する必要もない。また透水シート12の装着は、周壁体16の外面に巻き付けるのみという簡易な作業で終了し、穴の外で作業することが可能であり、狭い穴内で作業せずともよく、行いやすい。結果、上記雨水浸透枡10は、設置に際しての組み立て作業を穴の外部で行うことができ、また穴内での作業は、ほぼ立管部材35を取り付ける作業のみである。従って、設置作業が非常に簡単で、容易である。   In the installation work of the rainwater penetrating rod 10, there is no need to lay a water permeable sheet for the bottom plate 15, and naturally there is no need to worry about the positional deviation between the water permeable sheet for the bottom plate 15 and the bottom plate 15, and the positional deviation is corrected. There is no need. Further, the installation of the water permeable sheet 12 is completed by a simple operation of only being wound around the outer surface of the peripheral wall body 16, and can be performed outside the hole. As a result, the rainwater penetrating rod 10 can be assembled outside the hole, and the work inside the hole is almost only the work of attaching the standing pipe member 35. Therefore, the installation work is very simple and easy.

本発明の雨水浸透枡10は、上記した構成に限定されるものではなく、以下のように変更してもよい。
図5に示すように、立管部材35において、導水管接続筒36を省略するとともに、周壁体16及び透水シート12に導水管39を接続するための接続孔36Aを透設してもよい。このように構成した場合、穴の掘削深さを浅くすることができる。
図6(a)に示すように、側板16Aの下端部に補強のための枠リブ41を設けてもよい。このような枠リブ41を設けた場合、底部透水孔開放手段として、底部透水孔22Aを塞いでしまう枠リブ41において、該底部透水孔22Aと対応する位置に、該底部透水孔22Aと枡本体11の内部とを連通させる連通孔42を貫通形成する。なお図6(b)に示すように、側板16A(周壁体16)を平板状としてもよく、またこの場合、枠リブ41は平板状とした側板16A(周壁体16)の内面側の下端部に設けるものとして、該枠リブ41に連通孔42を貫通形成する。
図7(a)に示すように、周壁体16を円筒状としてもよく、また該周壁体16に応じて図7(b)に示すように、底板15を円板状としてもよい。なお、円筒状とした該周壁体16は、底部透水孔開放手段として、例えば周壁体16の内側に横断面形状が波形状の芯部43を設けることで、底部透水孔22Aを塞ぐことなく開放させることができる。
また周壁体16は、四角筒状、円筒状の他にも、筒状であれば、三角筒状、五角筒状、六角筒状などの多角筒状としてもよい。
あるいは上記周壁体16は、4枚の側板16Aによって四角筒状とすることに限らず、例えば平面視でL字状をなす側板を2枚組み合わせて四角筒状としてもよい。
上記浸透枡10においては、周壁体16の外面を透水シート12で被覆する構成としたが、これに限らず、周壁体16の内面を透水シート12で被覆する構成としてもよい。
The rainwater penetration rod 10 of the present invention is not limited to the above-described configuration, and may be modified as follows.
As shown in FIG. 5, in the standing pipe member 35, the water conduit connecting cylinder 36 may be omitted, and a connection hole 36 </ b> A for connecting the water conduit 39 to the peripheral wall body 16 and the water permeable sheet 12 may be provided. When comprised in this way, the excavation depth of a hole can be made shallow.
As shown in FIG. 6A, a frame rib 41 for reinforcement may be provided at the lower end of the side plate 16A. When such a frame rib 41 is provided, in the frame rib 41 that closes the bottom water-permeable hole 22A as a bottom water-permeable hole opening means, the bottom water-permeable hole 22A and the bag main body are located at positions corresponding to the bottom water-permeable hole 22A. A communication hole 42 is formed so as to penetrate the interior of 11. As shown in FIG. 6B, the side plate 16A (the peripheral wall body 16) may have a flat plate shape. In this case, the frame rib 41 has a lower end portion on the inner surface side of the flat plate side plate 16A (the peripheral wall body 16). The communication hole 42 is formed through the frame rib 41.
As shown in FIG. 7A, the peripheral wall body 16 may be cylindrical, and the bottom plate 15 may be disk-shaped according to the peripheral wall body 16 as shown in FIG. The peripheral wall body 16 having a cylindrical shape is opened without blocking the bottom water-permeable hole 22A by providing, for example, a corrugated core 43 having a cross-sectional shape inside the peripheral wall body 16 as a bottom water-permeable hole opening means. Can be made.
Further, the peripheral wall body 16 may have a polygonal cylindrical shape such as a triangular cylindrical shape, a pentagonal cylindrical shape, or a hexagonal cylindrical shape as long as it is a cylindrical shape in addition to the rectangular cylindrical shape and the cylindrical shape.
Alternatively, the peripheral wall body 16 is not limited to a quadrangular cylindrical shape by the four side plates 16A, and may be a square cylindrical shape by combining two side plates having an L shape in plan view, for example.
In the permeation cage 10, the outer surface of the peripheral wall body 16 is covered with the water permeable sheet 12. However, the configuration is not limited thereto, and the inner surface of the peripheral wall body 16 may be covered with the water permeable sheet 12.

10 雨水浸透枡
11 枡本体
12 透水シート
15 底板
16 周壁体
16A 側板
17 天板
21 嵌合溝
22A 底部透水孔
22B 壁部透水孔
32 折返部

DESCRIPTION OF SYMBOLS 10 Rainwater permeation bag 11 Hail body 12 Water-permeable sheet 15 Bottom plate 16 Perimeter wall body 16A Side plate 17 Top plate 21 Fitting groove 22A Bottom water-permeable hole 22B Wall water-permeable hole 32 Folding part

Claims (4)

地中に埋設され、雨水を内部に貯留して徐々に地中に浸透させるべく使用される雨水浸透枡であって、
上記雨水を内部に貯留するべく中空状とされた枡本体と、該枡本体を覆う透水シートとを備え、
上記枡本体は、上面の周縁部に嵌合溝が凹状に形成されている底板と、該底板の周縁部に立設される筒状の周壁体とを有しており、組み立てに際して該嵌合溝の内側に該周壁体の下端部が嵌入されるように構成されたものであり、
また上記枡本体にあっては該枡本体の内部に貯留された雨水を外部へ排出するべく、上記周壁体に複数の壁部透水孔が貫通形成されるとともに、上記底板に複数の底部透水孔が上記嵌合溝の内側にのみ貫通形成されており、
更に上記枡本体にあっては、上記嵌合溝の内側に上記周壁体の下端部が嵌入された状態における上記底部透水孔を介した上記枡本体の内部から外部への雨水の排出を確保するべく、底部透水孔開放手段が設けられており、
上記透水シートは、透水性を有する材料を用いて形成され、上記底板を覆うべく対応する部位を有しておらず、上記周壁体を覆うべく対応する部位のみによって構成されたものであり、
上記透水シートにあっては、上記周壁体の外面又は内面を被覆する周壁被覆部と、該周壁被覆部の下端から延設されて上記周壁体の下端で該周壁体の内面又は外面に折り返される折返部と、を有しており、
上記枡本体の組み立てに際して上記透水シートの上記折返部が上記周壁体の下端部とともに上記嵌合溝の内側に嵌入されることで、上記折返部で上記底部透水孔を上記嵌合溝の内側から覆うように構成した
ことを特徴とする雨水浸透枡。
A rainwater infiltration dredge buried in the ground and used to store rainwater inside and gradually penetrate it into the ground,
A cocoon body that is hollow to store the rainwater therein, and a water permeable sheet that covers the cocoon body,
The saddle body has a bottom plate in which a fitting groove is formed in a concave shape on the peripheral edge portion of the upper surface, and a cylindrical peripheral wall body standing on the peripheral edge portion of the bottom plate. It is configured so that the lower end of the peripheral wall body is fitted inside the groove,
Further, in the heel body, a plurality of wall permeable holes are formed in the peripheral wall body so as to discharge rainwater stored in the heel body to the outside, and a plurality of bottom permeable holes are formed in the bottom plate. Is formed only through the inside of the fitting groove,
Further, in the bag main body, it is ensured that rainwater is discharged from the inside of the bag main body to the outside via the bottom water permeable hole in a state where the lower end portion of the peripheral wall body is inserted inside the fitting groove. Therefore, the bottom permeation hole opening means is provided,
The water-permeable sheet is formed using a material having water permeability, does not have a corresponding portion to cover the bottom plate, and is configured only by a corresponding portion to cover the peripheral wall body,
In the water permeable sheet, the peripheral wall covering portion that covers the outer surface or the inner surface of the peripheral wall body, and extending from the lower end of the peripheral wall cover portion, is folded back to the inner surface or the outer surface of the peripheral wall body at the lower end of the peripheral wall body. A folding section, and
When the foldable body is assembled, the folded portion of the water permeable sheet is fitted inside the fitting groove together with the lower end portion of the peripheral wall body, so that the bottom water permeable hole is inserted from the inside of the fitting groove at the folded portion. A rainwater infiltration tub characterized by being configured to cover.
上記底部透水孔開放手段は、上記周壁体の横断面形状を波形状としたうえで、該波形状で該周壁体の内面から外面へ向かって凹む部位に、上記底部透水孔の位置を対応させて構成される
請求項1に記載の雨水浸透枡。
The bottom water-permeable hole opening means correlates the position of the bottom water-permeable hole to a portion of the corrugated wall that is recessed from the inner surface of the peripheral wall body to the outer surface after the cross-sectional shape of the peripheral wall body is wave-shaped. The rainwater infiltration trough of Claim 1 comprised.
上記底部透水孔開放手段は、上記周壁体を、その横断面形状を波形状とするか、または平板状とし、かつ内面側の少なくとも下端部に上記底板の嵌合溝の内側に入り込むリブが設けられているものとしたうえで、該リブの上記底部透水孔と対応する位置に、該底部透水孔と上記枡本体の内部とを連通させる連通孔を貫通形成して構成される
請求項1に記載の雨水浸透枡。
The bottom water-permeable hole opening means is configured such that the peripheral wall body has a corrugated cross-sectional shape or a flat plate shape, and at least a lower end portion on the inner surface side is provided with a rib that enters the inside of the fitting groove of the bottom plate. In the first aspect of the present invention, a communication hole that allows the bottom water-permeable hole and the inside of the ridge body to communicate with each other is formed at a position corresponding to the bottom water-permeable hole of the rib. The rainwater seepage trap described.
上記枡本体は、更に上記周壁体の上端部に取り付けられる天板を有しており、
上記天板には、上記枡本体の内部に雨水を導くための導水孔が設けられるとともに、上記周壁体の上端部が嵌入される嵌入溝が下面の周縁部に凹状に形成されており、
上記透水シートには、上記周壁被覆部の上端から延設されて上記周壁体の上端で該周壁体の内面又は外面に折り返される上側折返部を設け、
上記枡本体の組み立てに際して上記透水シートの上記上側折返部が上記周壁体の上端部とともに上記嵌入溝の内側に嵌入されるように構成した
請求項1から請求項3のうち何れか一項に記載の雨水浸透枡。
The bag main body further has a top plate attached to the upper end of the peripheral wall body,
The top plate is provided with a water introduction hole for guiding rainwater to the inside of the bag main body, and an insertion groove into which the upper end portion of the peripheral wall body is inserted is formed in a concave shape on the peripheral portion of the lower surface,
The water-permeable sheet is provided with an upper folded portion that extends from the upper end of the peripheral wall covering portion and is folded back to the inner surface or the outer surface of the peripheral wall body at the upper end of the peripheral wall body,
4. The structure according to claim 1, wherein the upper folded portion of the water-permeable sheet is configured to be fitted inside the fitting groove together with the upper end portion of the peripheral wall body when the heel body is assembled. 5. Rainwater permeation.
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