JP2005016084A

JP2005016084A - Rainwater storage/storage-infiltration tank

Info

Publication number: JP2005016084A
Application number: JP2003180201A
Authority: JP
Inventors: Hideo Takeuchi; 英夫竹内; Teruo Hashimoto; 照雄橋本; Noboru Sasaki; 昇佐々木
Original assignee: Ebata Corp
Current assignee: Ebata Corp
Priority date: 2003-06-24
Filing date: 2003-06-24
Publication date: 2005-01-20

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rainwater storage/storage-infiltration tank improved in mechanical strength while maintaining advantages in a transportation cost, assembly work, follow-up performance to a variation in plane area and volume, and the like. <P>SOLUTION: A plurality of face plate members 1, 2 are arranged in a plane shape by fitting projecting parts 14, 24 formed on one side of two adjacent face plate members 1, 2, ruggedly to recessed parts 13, 23 formed on the other side, and arranged facing a space. A side plate member 3 is connected to one face of each of the face plate members 1, 2 by recess-projection engagement, and one end of the side plate member 3 existing at a boundary between two adjacent face plate members 1 out of a plurality of side plate members 3 is fitted between a pair of projections 15, 16 formed at the respective projecting parts 14, 24 of two adjacent face plate members 1 and shared between two adjacent face plate members 1. A support member S is arranged within the facing space of the face plate members 1, 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、雨水貯留／貯留浸透槽に関する。本発明に係る雨水貯留／貯留浸透槽は、雨水を貯留しておく雨水貯留槽と、雨水を一次的に貯留し、貯留した雨水を地中に緩やかに浸透させて排出する雨水貯留浸透槽の両者を含む。
【０００２】
【従来の技術】
この種の雨水貯留浸透設備は、集水した雨水を一時的に貯留し、貯留した雨水を地中に緩やかに浸透させて排出することにより、河川への急激な雨水流入を調整する目的で、地中に埋設して用いられるものであって、従来より、種々のタイプのものが提案され、実用に供されている。
【０００３】
例えば、特許文献１は、面板部材と、側板部材とを組み合わせた雨水貯留／貯留浸透槽を開示している。
【０００４】
しかし、特許文献１に開示された技術は、面板部材と、側板部材とで空間を構成し、この空間を雨水貯留空間としているため、地中に埋設された際の周囲の土砂等から受ける圧力に対抗して雨水貯留空間を維持するのが容易でないという問題があった。
【０００５】
【特許文献１】
特開２００３−０３４９７０号公報
【０００６】
【発明が解決しようとする課題】
本発明の課題は、優れた機械的強度を有する雨水貯留／貯留浸透槽を提供することである。
【０００７】
【課題を解決するための手段】
上述した課題を解決するため、本発明に係る雨水貯留／貯留浸透槽は、面板部材と、側板部材と、支持部材とを含む。前記面板部材は、少なくとも２組の対向辺組を有し、前記対向辺組の相対向する２辺は、互いに対応する凹部及び凸部を有しており、前記凸部のそれぞれは、少なくも一面に間隔を隔てて対向する２つ１組の突起を有している。前記面板部材は複数備えられ、前記複数の面板部材は、隣接する２つの面板部材の一方に備えられた前記凸部が、他方に備えられた前記凹部と凹凸嵌合して面状に配置されるとともに、間隔を持って対面して配置されている。前記側板部材は、前記面板部材の一面と、凹凸嵌合により結合されるものであり、前記側板部材は複数備えられ、前記複数の側板部材のうち、隣接する２つの前記面板部材の境界に存在する側板部材は、一端が、隣接する２つの面板部材の各凸部に備えられた２つ１組の前記突起間に嵌合され、隣接する２つの面板部材において共用される。前記支持部材は、前記面板部材の対面間隔内に配置されている。
【０００８】
上述したように、本発明に係る雨水貯留／貯留浸透槽は、面板部材と、側板部材と、支持部材とに分かれているので、嵩張ることのない態様で輸送することができる。このため、輸送コストが低減されると共に、輸送が容易になる。
【０００９】
本発明に係る雨水貯留／貯留浸透槽を構成するには、地中に設けた穴の内部で、面板部材及び側板部材を、左右、上下及び前後方向に、立体的に組み合わせて行く。
【００１０】
組み合わせにおいては、まず、面板部材を、底板として用い、これを、地中に設けた穴の底面上に平面状に配置する。面板部材は、対向辺組の相対向する２辺に、互いに対応する凹部及び凸部を有する。従って、隣接する面板部材において、一方の凹部に、他方の凸部を嵌め込む凹凸嵌合により、全体として一体化され、平面化された底板配置構造を実現できる。このように、面板部材の凹凸嵌合によって敷きつめて行くので、底板の組立作業が極めて容易になる。
【００１１】
次に、底板を構成する面板部材の一面に、側板部材を、凹凸嵌合により結合する。面板部材及び側板部材の間の結合も、凹凸嵌合によるので、その組立作業が極めて容易になる。
【００１２】
側板部材のうち、隣接する面板部材の境界に存する側板部材は、隣接する面板部材において共用される。従って、側板部材の使用数を減少させ、コスト低減、組立容易化、及び、組立迅速化を図ることができる。
【００１３】
上述のようにして配置された面板部材及び側板部材に対し、側板部材で囲まれた底板としての面板部材の上に支持部材を配置し、これらの上に、天板として、面板部材を配置し、最小単位の雨水貯留／貯留浸透槽が得られる。
【００１４】
支持部材は、底板及び天板としての面板部材の対面間隔内に配置され、雨水貯留空間の内側から面板部材もしくは側板部材を支持するので、雨水貯留／貯留浸透槽が地中に埋設された際の周囲の土砂等から受ける圧力に対抗して、雨水貯留／貯留浸透槽の強度を増大させる。
【００１５】
天板を構成する面板部材の一面は、側板部材に対して、凹凸嵌合により結合する。天板を構成する面板部材も、側板部材に対して凹凸嵌合されるので、その組立作業が極めて容易になる。
【００１６】
しかも、天板を構成する面板部材において、相対向する２辺は互いに対応する凹部及び凸部を有する。従って、隣接する天板のうち、一方の天板を構成する面板部材の凹部に、他方の天板を構成する面板部材の凸部を嵌め込み、凹凸嵌合により、全体として一体化され、平面化された天板配置構造を実現できる。
【００１７】
上述したように、天板を、面板部材の凹凸嵌合によって敷きつめて行くだけでよいので、その組立作業が極めて容易になる。天板を構成する面板部材は、底板を構成する面板部材と、全く同じものであってもよいし、基本構造を同じくし、かつ、具体的細部で異なっていてもよい。
【００１８】
なお、最小単位の雨水貯留／貯留浸透槽を得る場合は面板部材を天板として用いるが、複数層の積み重ね構造とする場合は、面板部材を天板ではなく、中間板として用いる。
【００１９】
複数層の積み重ね構造の雨水貯留／貯留浸透槽を得るには、天板を構成する面板部材を中間板として用い、その上に側板部材を嵌め込み、側板部材で囲まれた中間板としての面板部材の上に支持部材を配置し、更に支持部材及び側板部材上に中間板となる面板部材を配置し、側板部材に嵌め込む組立作業を繰り返す。これにより、複数層の積み重ね構造の雨水貯留／貯留浸透槽が得られる。
【００２０】
面板部材及び側板部材は、面内に開口部を有するから、流入した雨水を、一次的に貯留し、貯留した雨水を、前記開口部を通して、時間を掛けて緩やかに地中に浸透させる貯留浸透槽を実現することができる。また、周囲に遮水層を設けた場合は雨水貯留槽を得ることができる。
【００２１】
雨水貯留／貯留浸透槽の平面積及び容積は、面板部材の平面枚数、及び、面板部材と側板部材との積み重ね数の選択により、任意に変更できる。従って、平面積及び容積の違いに容易に追従し得る。
【００２２】
雨水貯留／貯留浸透槽の組立体のまわりには、周知の技術に従って、不織布等の透水性保護層を設け、組立体の内部への土砂の流入を阻止する。
【００２３】
本発明の他の目的、構成及び利点については、実施例である添付図面を参照し、更に詳しく説明する。図面は単なる例示にすぎない。
【００２４】
【発明の実施の形態】
図１は本発明に係る雨水貯留／貯留浸透槽の分解斜視図、図２は図１に示した雨水貯留／貯留浸透槽の組立状態を示す斜視図である。これらの図は、最小単位としての雨水貯留／貯留浸透槽を示す。
【００２５】
図示された雨水貯留／貯留浸透槽は、面板部材１、２と、側板部材３と、支持部材Ｓとを含む。これらは、適当なプラスチック材料、または、プラスチック材料と無機粉体とを混合した複合材料を用いた成型品として構成することができる。
【００２６】
図３は支持部材の一実施例を示す分解斜視図である。図示するように、支持部材Ｓは、２枚の枠体Ｓ１、Ｓ２を含み、剛性を有するプラスチック材料、または、プラスチック材料と無機粉体とを混合した複合材料等で構成される。
【００２７】
それぞれの枠体Ｓ１、Ｓ２は、高さ寸法Ｈと、幅寸法Ｗとを有する。高さ寸法Ｈは、面板部材１、２の対向面間の寸法と同じか、わずかに小さく設定されている。幅寸法Ｗは、側板部材３の相対向する面間の寸法と同じか、わずかに小さく設定されている。高さ寸法Ｈと、幅寸法Ｗとは、同寸法に設定されることが好ましい。
【００２８】
図示する枠体Ｓ１は、下辺側から中央部まで、板厚Ｔと略等しい幅の切り込みＳ１１が形成されている。同様に、枠体Ｓ２は、上辺側から中央部まで、同様の切り込みＳ２１が形成されている。枠体Ｓ１及びＳ２は、それぞれの切り込みＳ１１、Ｓ２１部分を、相互に嵌合することで十字状に組み合わされる。
【００２９】
支持部材Ｓは、図１に図示するように、面板部材１、２及び側板部材３に対し、側板部材３で囲まれた面板部材１、２の対面間隔内に配置され、雨水貯留空間の内側から面板部材１、２及び側板部材３に当接し、面板部材１、２及び側板部材３を支持する。
【００３０】
本実施例において、支持部材Ｓは、２枚の枠体Ｓ１、Ｓ２で構成されるが、波板を用いたり、面板部材１、２の形状に合わせ、多数の板材を一点もしくは多点で交叉させる組み合わせ構造等をとることもできる。例えば、波板を用いて支持部材Ｓを構成した場合、波形と並行する方向からの圧力に対し、支持強度を向上できる。支持部材Ｓの配置は、雨水貯留／貯留浸透槽を多層構造とした場合、必ずしも最小単位としての雨水貯留／貯留浸透槽の全てに配置する必要は無く、土圧等に応じて適宜配置すればよい。
【００３１】
図４は、雨水貯留／貯留浸透槽において、底板として用いられる面板部材の平面図、図５は図４の５−５線に沿った拡大部分断面図、図６は図５に示す突起の別の実施例を示す部分拡大断面図である。
【００３２】
図４を参照すると、面板部材１は、面内に開口部１１を有する。開口部１１は、面板部材１の面内に略均等に１６個の貫通孔として設けてある。
【００３３】
面板部材１は、少なくとも２組の対向辺組を有する。対向辺組のそれぞれにおいて、相対向する２辺は互いに対応する位置に凹部１３及び凸部２４を有する。図示する面板部材１は、全体形状がほぼ正四角形状であり、隣接する２辺のほぼ中間部には凹部１３を有し、他の隣接する２辺の中間部には凸部１４を有する。凹部１３の両側には、凸部１４が設けられており、凸部１４の両側には凹部１３が設けられている。凹部１３及び凸部１４は、いわゆる「鳩尾継」を構成し得る形状を持つ。
【００３４】
実施例とは異なって、面板部材１、２は、他の角形状、例えば、６角形状、８角形状等であってもよい。凹部及び凸部は面板部材１の外形形状に合わせてその形成位置が選定される。
【００３５】
面板部材１の一面または両面には、各辺に沿って、２つ１組の突起１５、１６が設けられている。図５を参照すると、面板部材１は、両面の相対する位置に、間隔Ｇ１１を隔てて、高さＨ１１の２本の突起１５、１６を有する。突起１５及び１６は、側板部材３を挟持する。従って、図６に示す様に、２本の突起１５、１６は、上端に内向きフック部１５１、１６１を有することもできる。
【００３６】
図７は本発明に係る雨水貯留／貯留浸透槽において、天板または中間板として用いられる面板部材の平面図である。図７に示す面板部材２は、図４に示した面板部材１と基本的構造を同じくするものであるが、全く同じものを用いることもできる。
【００３７】
図７に示された面板部材２は、開口部２１の大きさ、個数等が面板部材１と異なるだけで、他の基本的構成は面板部材１と同じである。図示された面板部材は、中間板であり、最上面を構成する場合は、好ましくは図４に示した面板部材を用いる。
【００３８】
面板部材２は、全体形状がほぼ正四角形状であり、隣接する２辺のほぼ中間部に凹部２３を有し、他の隣接する２辺の中間部に凸部２４を有する。凹部２３の両側には、凸部２４が設けられており、凸部２４の両側には凹部２３が設けられている。凹部２３及び凸部２４も、「鳩尾継」を構成し得る形状を持つ。
【００３９】
面板部材２も、他の角形状、例えば、６角形状、８角形状等であってもよいこと、凹部や凸部は面板部材２の外形形状に合わせてその形成位置が選定されること等は、面板部材１の場合と同様である。
【００４０】
また、面板部材２の一面または両面には、各辺に沿って、２つ１組の突起２５、２６が設けられている。これらの突起２５、２６も、図５及び図６に示した構造を持つ。
【００４１】
図８は本発明に係る雨水貯留／貯留浸透槽に含まれる側板部材の斜視図、図９は図８の９−９線に沿った拡大部分断面図である。側板部材３は、面内に開口部３１を有する。図９に拡大して示すように、側板部材３は、外枠部３２を有する。外枠部３２は、外周部を囲むように配置されている。また、側板部材３は、外枠部３２の間に、仕切板３３を有する。仕切板３３は上下方向に延び、横方向に波形に連続する。仕切板３３の山及び谷の部分には、多数の貫通孔状の開口部３１が設けられている。図示実施例の側板部材３は、ほぼ直交する２つの面を含むＬ形の形状を有する。Ｌ形形状は一体成形、調板構造による機械的接続等によって実現できる。これとは異なって、平板状であってもよい。また、開口部３１は、上下方向に延びるスリットであってもよい。
【００４２】
側板部材３は、面板部材１の一面と、凹凸嵌合により結合される。具体的には、側板部材３は、下端部が面板部材１に備えられた２つの突起１５、１６の間に挿入され、その際に生じる凹凸嵌合により、面板部材１の一面に結合される。２つの突起１５、１６が、図６に示したような構造を持つ場合、側板部材３の下端部は、突起１５、１６の内向きフック部１５１、１６１によって、確実に保持される。
【００４３】
側板部材３の上端部には、面板部材２が結合される。結合において、面板部材２に備えられた２つの突起２５、２６の間に、側板部材１の上端部が挿入され、その際に生じる凹凸嵌合により、面板部材２の一面に結合される。２つの突起２５、２６が、図６に示したような構造を持つ場合、側板部材３の下端部は、突起２５、１６の内向きフック部２５１、２６２によって、確実に保持される。
【００４４】
上述したように、雨水貯留／貯留浸透槽は、面板部材１、２と、側板部材３と、支持部材Ｓとに分離されているので、面板部材１、２、側板部材３及び支持部材Ｓを、嵩張ることのない態様で輸送することができるから、輸送コストが低減される共に、輸送が容易になる。具体的には、面板部材１、２は平板状であり、支持部材Ｓは、２枚の枠体Ｓ１、４２で構成されるので、嵩張らない状態で重ねて輸送できる。また、図示の側板部材３はＬ形であるから、同一向きに重ねることにより嵩張りを回避し得る。側板部材３が平板状である場合には、面板部材１、２及び支持部材Ｓと同様に、積み重ねて輸送できる。
【００４５】
図示実施例の雨水貯留／貯留浸透槽を構成するには、面板部材１を、底板として用い、その上に側板部材３を凹凸嵌合により結合し、十字状に組み立てた支持部材Ｓを面板部材１上に配置し、その上に、面板部材２を天板として、凹凸嵌合により結合するだけでよい。このため、組立作業が極めて容易になる。
【００４６】
面板部材１、２及び側板部材３は開口部１１、２１、３１を有しているから、透水性保護膜で覆って、地中に埋設した場合、雨水を、開口部１１、２１、３１を通して、地中に浸透させる雨水貯留浸透槽を得ることができる。また、周囲に遮水層を設けた場合は雨水貯留槽を得ることができる。
【００４７】
以上の説明は、最初に述べたように、最小単位としての雨水貯留／貯留浸透槽を示したものである。いずれの場合も、支持部材は、底板及び天板としての面板部材１、２の対面間隔内に配置され、雨水貯留空間の内側から面板部材１、２もしくは側板部材３を支持するので、雨水貯留／貯留浸透槽が地中に埋設された際の周囲の土砂等から受ける圧力に対抗して、雨水貯留／貯留浸透槽の強度を増大させる。
【００４８】
次に、実際の使用に、より適する多層構造の雨水貯留／貯留浸透槽の構成について説明する。
【００４９】
図１０及び図１１は本発明に係る雨水貯留／貯留浸透槽の構成の一部を示す分解斜視図、図１２は図１０及び図１１に示した雨水貯留／貯留浸透槽の組立状態を示す斜視図である。図示された雨水貯留／貯留浸透槽を構成するには、地中に設けた穴の内部で、面板部材１、２、側板部材３及び支持部材Ｓを、左右、上下及び前後方向に、立体的に組み合わせて行く。
【００５０】
組み合わせにおいては、まず、雨水貯留／貯留浸透槽のそれぞれに含まれる面板部材１を、底板として用い、これを、地中に設けた穴の底面上に平面状に配置する。図１３及び図１４は、面板部材の配置及び接続を説明する図である。面板部材１は、２組の対向辺組のそれぞれは相対向する２辺を含み、２辺のうちの一辺は凹部１３を有し、他辺は凹部１３と対応する凸部１４を有する。従って、図１３に示すように、隣接する面板部材１、１において、一方の凹部１３に、他方の凸部１４を嵌め込み、凹凸嵌め合いにより全体として一体化され、平面化された底板配置構造を実現できる。このように、底板となる面板部材１を、凹凸嵌合によって敷きつめて行くので、その組立作業が極めて容易になる。
【００５１】
底板を構成する面板部材１は、雨水貯留／貯留浸透槽として要求される平面積に応じて、必要な枚数だけ、前後及び左右に平面的に配置し、かつ、相互に凹凸嵌合により結合する。
【００５２】
次に、底板を構成する面板部材１の一面に、側板部材３を、凹凸嵌合により結合する。凹凸嵌合は、面板部材１の一面上に設けられた２つの突起１５、１６の間に、側板部材３の下端部を挿入する（図５及び図６等参照）ことによって実行される。このように、面板部材１及び側板部材３の結合も、凹凸嵌合によるので、その組立作業が極めて容易になる。
【００５３】
側板部材３は筒状となるように配置する。この場合、側板部材３のうち、隣接する面板部材１の境界に存する側板部材３は、隣接する面板部材１において共用される。従って、側板部材３の使用数を減少させ、コスト低減、組立容易化、及び、組立迅速化を図ることができる。隣接する面板部材１の境界に存しない側板部材３としては、Ｌ形（図８参照）の他、平板状のものも用いることができる。
【００５４】
上述のようにして筒状に配置された側板部材３の内部の面板部材１上に、支持部材Ｓが配置される。本実施例の支持部材Ｓは４枚の平板を井桁状に組み合わせて構成している。このように構成すると、面板部材１にリブ等の挟持機構が無くとも、支持部材Ｓを安定して配置できる。なお、図１０に示す支持部材Ｓは平板状体であるが、図３に示した枠状体を用いることもできる。支持部材Ｓが枠状体である場合、軽量化され運搬が容易となる。
【００５５】
側板部材３及び支持部材Ｓの上には、中間板として、面板部材２を配置する。中間板を構成する面板部材２の一面は、側板部材３に対して、凹凸嵌合により結合する。凹凸嵌合は、面板部材２の一面上に設けられた２つの突起２５、２６の間に、側板部材３の上端部を挿入する（図５及び図６等参照）ことによって実行される。このため、側板部材３に対する面板部材２の組立作業も極めて容易になる。
【００５６】
しかも、中間板を構成する面板部材２は、相対向する２辺のうちの一辺は凹部２３を有し、他辺は凹部２３と対応する凸部２４を有する（図７参照）。従って、図１４に示すように、隣接する中間板のうち、一方の面板部材２の凹部２３に、他方の面板部材２の凸部２４を嵌め込み、凹凸嵌め合いにより全体として一体化され、平面化された中間板の配置構造を実現できる。上述したように、中間板を、面板部材２の凹凸嵌合によって敷きつめて行くだけでよいので、その組立作業が極めて容易になる。
【００５７】
この後、中間板を構成する面板部材２の上に側板部材３を嵌め込み、支持部材Ｓを配置し、更にその上に中間板となる面板部材２を配置し、面板部材２を側板部材３に嵌め込む組立作業を、必要回数繰り返す。これにより、要求される容積を持つ雨水貯留／貯留浸透槽が得られる。
【００５８】
雨水貯留／貯留浸透槽の平面積及び容積は、面板部材１、２の平面敷設枚数、及び、面板部材と側板部材との積み重ね数の選択により、任意に変更できる。従って、実際的な場面で要求される平面積及び容積を有する雨水貯留／貯留浸透槽を容易に実現し得る。
【００５９】
具体的に、図１５は側板部材の配置を説明する図である。図示実施例は、（ｎ×ｎ）個のＬ形の側板部材を、ｎ行ｎ列配置とした例を示している。図示するように、行数及び列数が同じ場合には、配置対角線Ｄ１を境界線にして、下半分に属する側板部材の群Ｇ１と、上半分に属する側板部材の群Ｇ２とを、互いに対向させた配置になる。
【００６０】
図１６は側板部材の別の配置を説明する図である。図示実施例は、側板部材を、ｎ行ｍ列配置（ｍ＜ｎ）とした例を示している。図示するように、行数ｎ及び列数ｍが異なる場合には、Ｌ形の側板部材の他、平面状の側板部材３ｍ１、３ｍ２を用いればよい。行数ｎ及び列数ｍの差が大きくなるにつれ、平面状の側板部材の数は増加する。
【００６１】
上述したように、Ｌ形の側板部材を用いた場合は、平面積及び容積が変化しても、規則的に配置してゆけばよいので、その配置及び組立を、迅速に実行することができる。
【００６２】
図１７は本発明に係る雨水貯留浸透槽を地中に埋設した状態を示す図である。雨水貯留浸透槽Ｆは、地中４に形成された穴５の内部に配置され、上面側が土、砂利、コンクリートまたはアスファルト等の層７によって覆われている。支持部材は、底板及び天板としての面板部材１、２の対面間隔内に配置され、雨水貯留空間の内側から面板部材１、２もしくは側板部材３を支持するので、雨水貯留／貯留浸透槽が地中に埋設された際の周囲の土砂等から受ける圧力に対抗して、雨水貯留／貯留浸透槽の強度を増大させる。
【００６３】
雨水貯留浸透槽Ｆの周囲は、周知の技術に従って、不織布等の透水性保護層６によって覆い、雨水貯留浸透槽Ｆの内部への土砂の流入を阻止する。
【００６４】
面板部材１、２及び側板部材３は、面内に、それぞれ、開口部１１、２１、３１を有するから、流入管８から流入した雨水を一時的に貯留し、開口部１１、２１、３１を通して地中に浸透させることができる。
【００６５】
雨水貯留／貯留浸透槽Ｆは、平板状の面板部材１、２及び仕切板３３を有する側板部材３を積層した構造であり、側板部材３の仕切板３３により地表側から加わる荷重を板面と平行な方向（縦方向）で受ける波形であるから、面板部材１、２の対向面間に配置された支持体による支持と相俟って、地表側から加わる荷重に対して十分に大きな機械的強度を確保することができる。また、支持体の端面を側板部材３の内面に当接して配置すれば、仕切板３３を波形にしたことと相俟って、横方向から加わる土圧に対しても、十分に対抗することができる。
【００６６】
図１７において、透水性保護層６を遮水層６に替え、遮水層６によって雨水貯留浸透槽Ｆの底面を含む全周を覆えば、雨水貯留槽を構成できる。
【００６７】
以上、好ましい実施例を参照して本発明を詳細に説明したが、本発明はこれらに限定されるものではなく、当業者であれば、その基本的技術思想および教示に基づき、種々の変形例を想到できることは自明である。
【００６８】
【発明の効果】
以上述べたように、本発明によれば、優れた機械的強度を有する雨水貯留／貯留浸透槽を提供することができる。
【図面の簡単な説明】
【図１】本発明に係る雨水貯留／貯留浸透槽の分解斜視図である。
【図２】図１に示した雨水貯留／貯留浸透槽の組立状態を示す斜視図である。
【図３】支持部材の一実施例を示す分解斜視図である。
【図４】本発明に係る雨水貯留／貯留浸透槽において、底板として用いられる面板部材の平面図である。
【図５】図４の５−５線に沿った拡大部分断面図である。
【図６】図５に示す突起の別の実施例を示す部分拡大断面図である。
【図７】本発明に係る雨水貯留／貯留浸透槽において、天板または中間板として用いられる面板部材の平面図である。
【図８】本発明に係る雨水貯留／貯留浸透槽に含まれる側板部材の斜視図である。
【図９】図８の９−９線に沿った拡大部分断面図である。
【図１０】本発明に係る雨水貯留／貯留浸透槽の構成の一部を示す分解斜視図である。
【図１１】本発明に係る雨水貯留／貯留浸透槽の構成の一部を示す分解斜視図である。
【図１２】図１０及び図１１に示した雨水貯留／貯留浸透槽の組立状態を示す斜視図である。
【図１３】底板を構成する面板部材の配置及び接続を説明する図である。
【図１４】天板または中間板を構成する面板部材の配置及び接続を説明する図である。
【図１５】側板部材の配置を説明する図である。
【図１６】側板部材の別の配置を説明する図である。
【図１７】本発明に係る雨水貯留浸透槽を地中に埋設した状態を示す図である。
【符号の説明】
１、２面板部材
１３、２３凹部
１４、２４凸部
１５、１６、２５、２６突起
３側板部材
Ｓ支持部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rainwater storage / storage infiltration tank. The rainwater storage / storage and infiltration tank according to the present invention includes a rainwater storage tank that stores rainwater, and a rainwater storage and infiltration tank that temporarily stores rainwater and gently infiltrates the stored rainwater into the ground and discharges it. Includes both.
[0002]
[Prior art]
This type of rainwater storage and infiltration facility is intended to adjust the rapid inflow of rainwater into the river by temporarily storing the collected rainwater and then slowly infiltrating the discharged rainwater into the ground and discharging it. It has been used by being buried in the ground, and various types have been proposed and put into practical use.
[0003]
For example, Patent Document 1 discloses a rainwater storage / storage permeation tank in which a face plate member and a side plate member are combined.
[0004]
However, since the technology disclosed in Patent Document 1 forms a space with the face plate member and the side plate member, and this space is used as a rainwater storage space, the pressure received from the surrounding earth and sand when buried in the ground There is a problem that it is not easy to maintain the rainwater storage space against this.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 2003-034970
[Problems to be solved by the invention]
An object of the present invention is to provide a rainwater storage / retention permeation tank having excellent mechanical strength.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problem, a rainwater storage / storage penetration tank according to the present invention includes a face plate member, a side plate member, and a support member. The face plate member has at least two pairs of opposing sides, and two opposite sides of the opposing sides set have a concave part and a convex part corresponding to each other, and each of the convex parts is at least A pair of protrusions facing each other with a gap is provided on one surface. A plurality of the face plate members are provided, and the plurality of face plate members are arranged in a planar shape, with the convex portion provided on one of the two adjacent face plate members being engaged with the concave portion provided on the other. And facing each other with a gap. The side plate member is coupled to one surface of the face plate member by concave-convex fitting. A plurality of the side plate members are provided, and the side plate member is present at a boundary between two adjacent face plate members among the plurality of side plate members. One end of the side plate member is fitted between the pair of protrusions provided on each convex portion of the two adjacent face plate members, and is shared by the two adjacent face plate members. The support member is disposed within a face-to-face spacing of the face plate member.
[0008]
As described above, since the rainwater storage / storage infiltration tank according to the present invention is divided into the face plate member, the side plate member, and the support member, the rainwater storage / storage permeation tank can be transported without being bulky. For this reason, transportation cost is reduced and transportation is facilitated.
[0009]
In order to configure the rainwater storage / storage infiltration tank according to the present invention, the face plate member and the side plate member are three-dimensionally combined in the left, right, up and down, and front and rear directions inside the hole provided in the ground.
[0010]
In the combination, first, a face plate member is used as a bottom plate, and this is arranged in a planar shape on the bottom surface of a hole provided in the ground. The face plate member has a concave portion and a convex portion corresponding to each other on two opposite sides of the opposite side group. Therefore, in the adjacent face plate member, the bottom plate arrangement structure integrated and planarized as a whole can be realized by the concave and convex fitting in which the other convex portion is fitted in one concave portion. As described above, since the surface plate members are laid down by the concave-convex fitting, the assembly work of the bottom plate becomes extremely easy.
[0011]
Next, the side plate member is bonded to one surface of the face plate member constituting the bottom plate by concave and convex fitting. Since the coupling between the face plate member and the side plate member is also due to the uneven fitting, the assembling work becomes extremely easy.
[0012]
Among the side plate members, the side plate member existing at the boundary between the adjacent face plate members is shared by the adjacent face plate members. Therefore, it is possible to reduce the number of side plate members used, reduce costs, facilitate assembly, and speed up assembly.
[0013]
For the face plate member and the side plate member arranged as described above, a support member is placed on the face plate member as the bottom plate surrounded by the side plate member, and the face plate member is placed on these as the top plate. A minimum unit of rainwater storage / storage infiltration tank can be obtained.
[0014]
The support member is disposed within the facing distance between the bottom plate and the face plate member as the top plate, and supports the face plate member or the side plate member from the inside of the rainwater storage space. Therefore, when the rainwater storage / storage infiltration tank is embedded in the ground The strength of the rainwater storage / retention permeation tank is increased against the pressure received from the surrounding earth and sand.
[0015]
One surface of the face plate member constituting the top plate is coupled to the side plate member by concave-convex fitting. Since the face plate member constituting the top plate is also concavo-convexly fitted to the side plate member, the assembling work becomes extremely easy.
[0016]
Moreover, in the face plate member constituting the top plate, the two opposing sides have a concave portion and a convex portion corresponding to each other. Therefore, of the adjacent top plates, the convex portion of the face plate member constituting the other top plate is fitted into the concave portion of the face plate member constituting one top plate, and the whole is integrated and flattened by the concave-convex fitting. Can be realized.
[0017]
As described above, it is only necessary to lay the top plate by concavo-convex fitting of the face plate members, so that the assembling operation becomes extremely easy. The face plate member constituting the top plate may be exactly the same as the face plate member constituting the bottom plate, may have the same basic structure, and may differ in specific details.
[0018]
In addition, when obtaining the rainwater storage / storage permeation tank of the minimum unit, the face plate member is used as a top plate. However, when a multi-layer stacked structure is used, the face plate member is used as an intermediate plate instead of the top plate.
[0019]
In order to obtain a rainwater storage / storage permeation tank having a multi-layered structure, a face plate member constituting the top plate is used as an intermediate plate, a side plate member is fitted thereon, and the face plate member as an intermediate plate surrounded by the side plate member A support member is disposed on the top plate, a face plate member serving as an intermediate plate is disposed on the support member and the side plate member, and the assembly operation of fitting into the side plate member is repeated. Thereby, the rainwater storage / storage infiltration tank of the multilayer structure is obtained.
[0020]
Since the face plate member and the side plate member have an opening in the plane, the stored rainwater is temporarily stored in the ground, and the stored rainwater is gradually infiltrated into the ground over time through the opening. A tank can be realized. Moreover, a rainwater storage tank can be obtained when a water-impervious layer is provided around.
[0021]
The flat area and the volume of the rainwater storage / storage permeation tank can be arbitrarily changed by selecting the number of flat plate members and the number of stacked face plate members and side plate members. Therefore, it is possible to easily follow the difference in plane area and volume.
[0022]
In accordance with a well-known technique, a permeable protective layer such as a nonwoven fabric is provided around the rainwater storage / storage infiltration tank assembly to prevent inflow of earth and sand into the assembly.
[0023]
Other objects, configurations, and advantages of the present invention will be described in more detail with reference to the accompanying drawings as examples. The drawings are merely illustrative.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an exploded perspective view of a rainwater storage / storage penetration tank according to the present invention, and FIG. 2 is a perspective view showing an assembled state of the rainwater storage / storage penetration tank shown in FIG. These figures show the rainwater storage / storage infiltration tank as a minimum unit.
[0025]
The illustrated rainwater storage / storage penetration tank includes face plate members 1, 2, a side plate member 3, and a support member S. These can be configured as a molded product using an appropriate plastic material or a composite material in which a plastic material and an inorganic powder are mixed.
[0026]
FIG. 3 is an exploded perspective view showing an embodiment of the support member. As shown in the figure, the support member S includes two frames S1 and S2, and is made of a plastic material having rigidity, or a composite material in which a plastic material and inorganic powder are mixed.
[0027]
Each of the frames S1 and S2 has a height dimension H and a width dimension W. The height dimension H is set to be the same as or slightly smaller than the dimension between the opposing surfaces of the face plate members 1 and 2. The width dimension W is set to be the same as or slightly smaller than the dimension between the opposing surfaces of the side plate member 3. The height dimension H and the width dimension W are preferably set to the same dimension.
[0028]
In the illustrated frame S1, a cut S11 having a width substantially equal to the plate thickness T is formed from the lower side to the center. Similarly, the frame body S2 is formed with the same cut S21 from the upper side to the center. The frames S1 and S2 are combined in a cross shape by fitting the respective cuts S11 and S21 to each other.
[0029]
As shown in FIG. 1, the support member S is disposed within the facing distance between the face plate members 1 and 2 surrounded by the side plate member 3 with respect to the face plate members 1 and 2 and the side plate member 3. To the face plate members 1 and 2 and the side plate member 3 to support the face plate members 1 and 2 and the side plate member 3.
[0030]
In this embodiment, the support member S is composed of two frames S1 and S2. However, a corrugated plate is used, or a large number of plate members are crossed at one point or multiple points according to the shape of the face plate members 1 and 2. It is also possible to take a combination structure. For example, when the support member S is configured using a corrugated plate, the support strength can be improved with respect to pressure from a direction parallel to the waveform. When the rainwater storage / storage infiltration tank has a multi-layer structure, the support member S is not necessarily disposed in all of the rainwater storage / storage infiltration tank as a minimum unit, and may be appropriately disposed according to earth pressure or the like. Good.
[0031]
4 is a plan view of a face plate member used as a bottom plate in the rainwater storage / storage infiltration tank, FIG. 5 is an enlarged partial cross-sectional view taken along line 5-5 in FIG. 4, and FIG. 6 is another projection shown in FIG. It is a partial expanded sectional view which shows the Example.
[0032]
Referring to FIG. 4, the face plate member 1 has an opening 11 in the plane. The openings 11 are provided as 16 through holes substantially evenly in the plane of the face plate member 1.
[0033]
The face plate member 1 has at least two pairs of opposing sides. In each of the opposing side groups, the two opposing sides have a concave portion 13 and a convex portion 24 at positions corresponding to each other. The face plate member 1 shown in the figure has a substantially square shape as a whole, and has a concave portion 13 at a substantially middle portion between two adjacent sides, and a convex portion 14 at a middle portion between the other two adjacent sides. Convex portions 14 are provided on both sides of the concave portion 13, and concave portions 13 are provided on both sides of the convex portion 14. The concave portion 13 and the convex portion 14 have a shape that can constitute a so-called “Hatoo joint”.
[0034]
Unlike the embodiment, the face plate members 1 and 2 may have other square shapes, for example, a hexagonal shape and an octagonal shape. The formation positions of the concave portions and the convex portions are selected according to the outer shape of the face plate member 1.
[0035]
A pair of protrusions 15 and 16 are provided along one side on one or both surfaces of the face plate member 1. Referring to FIG. 5, the face plate member 1 has two protrusions 15 and 16 having a height H11 with a gap G11 at opposite positions on both sides. The protrusions 15 and 16 sandwich the side plate member 3. Therefore, as shown in FIG. 6, the two protrusions 15 and 16 can have inward hook portions 151 and 161 at their upper ends.
[0036]
FIG. 7 is a plan view of a face plate member used as a top plate or an intermediate plate in the rainwater storage / storage penetration tank according to the present invention. The face plate member 2 shown in FIG. 7 has the same basic structure as that of the face plate member 1 shown in FIG. 4, but the same material can also be used.
[0037]
The face plate member 2 shown in FIG. 7 is the same as the face plate member 1 except that the size and number of openings 21 are different from those of the face plate member 1. The illustrated face plate member is an intermediate plate, and when the uppermost surface is formed, the face plate member shown in FIG. 4 is preferably used.
[0038]
The face plate member 2 has a substantially square shape as a whole, and has a concave portion 23 at a substantially middle portion between two adjacent sides, and a convex portion 24 at a middle portion between the other two adjacent sides. Convex portions 24 are provided on both sides of the concave portion 23, and concave portions 23 are provided on both sides of the convex portion 24. The concave portion 23 and the convex portion 24 also have a shape that can constitute a “Hatoo joint”.
[0039]
The face plate member 2 may also have other square shapes, for example, a hexagonal shape, an octagonal shape, and the like, and the formation positions of the concave portions and the convex portions are selected in accordance with the outer shape of the face plate member 2. Is the same as in the case of the face plate member 1.
[0040]
In addition, a pair of protrusions 25 and 26 are provided on one or both surfaces of the face plate member 2 along each side. These protrusions 25 and 26 also have the structure shown in FIGS.
[0041]
FIG. 8 is a perspective view of a side plate member included in the rainwater storage / storage infiltration tank according to the present invention, and FIG. 9 is an enlarged partial cross-sectional view taken along line 9-9 of FIG. The side plate member 3 has an opening 31 in the plane. As shown in an enlarged view in FIG. 9, the side plate member 3 has an outer frame portion 32. The outer frame portion 32 is disposed so as to surround the outer peripheral portion. Further, the side plate member 3 has a partition plate 33 between the outer frame portions 32. The partition plate 33 extends in the vertical direction and continues in a waveform in the horizontal direction. A large number of through-hole openings 31 are provided in the crest and trough portions of the partition plate 33. The side plate member 3 in the illustrated embodiment has an L-shape including two surfaces that are substantially perpendicular to each other. The L-shape can be realized by integral molding, mechanical connection by a plate structure or the like. Unlike this, it may be flat. Further, the opening 31 may be a slit extending in the vertical direction.
[0042]
The side plate member 3 is coupled to one surface of the face plate member 1 by concavo-convex fitting. Specifically, the side plate member 3 is inserted between the two protrusions 15 and 16 provided at the lower end portion of the face plate member 1, and is coupled to one surface of the face plate member 1 by an uneven fitting generated at that time. . When the two protrusions 15 and 16 have a structure as shown in FIG. 6, the lower end portion of the side plate member 3 is securely held by the inward hook portions 151 and 161 of the protrusions 15 and 16.
[0043]
The face plate member 2 is coupled to the upper end portion of the side plate member 3. In the coupling, the upper end portion of the side plate member 1 is inserted between the two protrusions 25 and 26 provided on the face plate member 2, and is joined to one surface of the face plate member 2 by the uneven fitting generated at that time. When the two protrusions 25 and 26 have a structure as shown in FIG. 6, the lower end portion of the side plate member 3 is securely held by the inward hook portions 251 and 262 of the protrusions 25 and 16.
[0044]
As described above, since the rainwater storage / storage permeation tank is separated into the face plate members 1 and 2, the side plate member 3, and the support member S, the face plate members 1 and 2, the side plate member 3, and the support member S are separated. In addition, since it can be transported in a mode that is not bulky, the transportation cost is reduced and transportation is facilitated. Specifically, the face plate members 1 and 2 are plate-shaped, and the support member S is composed of two frame bodies S1 and 42, so that they can be transported without being bulky. Further, since the illustrated side plate member 3 is L-shaped, it is possible to avoid bulkiness by overlapping in the same direction. When the side plate member 3 has a flat plate shape, like the face plate members 1 and 2 and the support member S, they can be stacked and transported.
[0045]
In order to configure the rainwater storage / storage permeation tank of the illustrated embodiment, the face plate member 1 is used as a bottom plate, the side plate member 3 is coupled thereto by concave and convex fitting, and the support member S assembled in a cross shape is used as the face plate member. It arrange | positions on 1 and it should just be couple | bonded by the uneven | corrugated fitting on it using the faceplate member 2 as a top plate. For this reason, the assembling work becomes extremely easy.
[0046]
Since the face plate members 1 and 2 and the side plate member 3 have the openings 11, 21, and 31, when they are covered with a water-permeable protective film and embedded in the ground, rainwater is passed through the openings 11, 21, and 31. A rainwater storage and penetration tank that is allowed to penetrate into the ground can be obtained. Moreover, a rainwater storage tank can be obtained when a water-impervious layer is provided around.
[0047]
The above description shows the rainwater storage / storage infiltration tank as the minimum unit as described at the beginning. In any case, the support member is disposed within the facing distance between the face plate members 1 and 2 as the bottom plate and the top plate, and supports the face plate member 1 or 2 or the side plate member 3 from the inside of the rain water storage space. / Increase the strength of the rainwater storage / storage infiltration tank against the pressure received from the surrounding earth and sand when the storage infiltration tank is buried in the ground.
[0048]
Next, the structure of the rainwater storage / storage infiltration tank having a multilayer structure that is more suitable for actual use will be described.
[0049]
10 and 11 are exploded perspective views showing a part of the configuration of the rainwater storage / storage infiltration tank according to the present invention, and FIG. 12 is a perspective view showing an assembled state of the rainwater storage / storage infiltration tank shown in FIGS. 10 and 11. FIG. In order to configure the illustrated rainwater storage / storage permeation tank, the face plate members 1, 2, the side plate member 3, and the support member S are three-dimensionally arranged in the left, right, up, down, and front / rear directions inside the holes provided in the ground. Go to the combination.
[0050]
In the combination, first, the face plate member 1 included in each of the rainwater storage / storage permeation tank is used as a bottom plate, and this is arranged in a plane on the bottom surface of a hole provided in the ground. 13 and 14 are diagrams for explaining the arrangement and connection of the face plate members. In the face plate member 1, each of the two sets of opposite sides includes two opposite sides, one of the two sides has a concave portion 13, and the other side has a convex portion 14 corresponding to the concave portion 13. Therefore, as shown in FIG. 13, in the adjacent face plate members 1, 1, the other convex portion 14 is fitted into one concave portion 13, and the bottom plate arrangement structure is integrated and planarized as a whole by fitting the concave and convex portions. realizable. In this way, the face plate member 1 serving as the bottom plate is laid by uneven fitting, so that the assembling work becomes extremely easy.
[0051]
The face plate member 1 constituting the bottom plate is arranged in a plane in the front and rear and left and right as many as required according to the flat area required as a rainwater storage / storage permeation tank, and coupled to each other by concave and convex fitting. .
[0052]
Next, the side plate member 3 is joined to one surface of the face plate member 1 constituting the bottom plate by concave-convex fitting. The uneven fitting is performed by inserting the lower end portion of the side plate member 3 between the two protrusions 15 and 16 provided on one surface of the face plate member 1 (see FIG. 5 and FIG. 6). In this way, since the coupling of the face plate member 1 and the side plate member 3 is also due to the uneven fitting, the assembling work becomes extremely easy.
[0053]
The side plate member 3 is disposed so as to be cylindrical. In this case, among the side plate members 3, the side plate member 3 existing at the boundary between the adjacent face plate members 1 is shared by the adjacent face plate members 1. Therefore, the number of side plate members 3 used can be reduced, and cost reduction, easy assembly, and rapid assembly can be achieved. As the side plate member 3 that does not exist at the boundary between the adjacent face plate members 1, a flat plate can be used in addition to the L shape (see FIG. 8).
[0054]
The support member S is arranged on the face plate member 1 inside the side plate member 3 arranged in a cylindrical shape as described above. The support member S of the present embodiment is configured by combining four flat plates in a cross beam shape. If comprised in this way, even if the face plate member 1 does not have clamping mechanisms, such as a rib, the supporting member S can be arrange | positioned stably. Although the support member S shown in FIG. 10 is a flat plate, the frame shown in FIG. 3 can also be used. When the support member S is a frame-like body, the weight is reduced and transportation is easy.
[0055]
On the side plate member 3 and the support member S, the face plate member 2 is disposed as an intermediate plate. One surface of the face plate member 2 constituting the intermediate plate is coupled to the side plate member 3 by concavo-convex fitting. The uneven fitting is performed by inserting the upper end portion of the side plate member 3 between the two protrusions 25 and 26 provided on one surface of the face plate member 2 (see FIG. 5 and FIG. 6). For this reason, the assembling work of the face plate member 2 with respect to the side plate member 3 becomes extremely easy.
[0056]
Moreover, the face plate member 2 constituting the intermediate plate has a concave portion 23 on one side of the two opposite sides, and a convex portion 24 corresponding to the concave portion 23 on the other side (see FIG. 7). Therefore, as shown in FIG. 14, among the adjacent intermediate plates, the convex portion 24 of the other face plate member 2 is fitted into the concave portion 23 of the one face plate member 2, and is integrated as a whole by the concavo-convex fitting, and is planarized. An intermediate plate arrangement structure can be realized. As described above, since the intermediate plate only needs to be laid down by the concave and convex fitting of the face plate member 2, the assembling operation becomes extremely easy.
[0057]
Thereafter, the side plate member 3 is fitted on the face plate member 2 constituting the intermediate plate, the support member S is arranged, the face plate member 2 serving as the intermediate plate is further arranged thereon, and the face plate member 2 is attached to the side plate member 3. Repeat the required assembly process. As a result, a rainwater storage / storage infiltration tank having a required volume can be obtained.
[0058]
The plane area and the volume of the rainwater storage / storage permeation tank can be arbitrarily changed by selecting the number of flat laying of the face plate members 1 and 2 and the number of stacked face plate members and side plate members. Therefore, it is possible to easily realize a rainwater storage / storage infiltration tank having a flat area and volume required in a practical situation.
[0059]
Specifically, FIG. 15 is a diagram illustrating the arrangement of the side plate members. The illustrated embodiment shows an example in which (n × n) L-shaped side plate members are arranged in n rows and n columns. As shown in the figure, when the number of rows and the number of columns are the same, the group G1 of side plate members belonging to the lower half and the group G2 of side plate members belonging to the upper half are opposed to each other with the arrangement diagonal line D1 as a boundary line. It will be arranged.
[0060]
FIG. 16 is a diagram for explaining another arrangement of the side plate members. The illustrated embodiment shows an example in which the side plate members are arranged in n rows and m columns (m <n). As illustrated, when the number of rows n and the number of columns m are different, planar side plate members 3m1 and 3m2 may be used in addition to the L-shaped side plate members. As the difference between the number of rows n and the number of columns m increases, the number of planar side plate members increases.
[0061]
As described above, when the L-shaped side plate member is used, even if the plane area and the volume change, it may be arranged regularly, so that the arrangement and assembly can be performed quickly. .
[0062]
FIG. 17 is a view showing a state in which the rainwater storage and penetration tank according to the present invention is buried in the ground. The rainwater storage and penetration tank F is disposed inside a hole 5 formed in the ground 4, and the upper surface side is covered with a layer 7 such as soil, gravel, concrete, or asphalt. The support member is disposed within the facing distance between the face plate members 1 and 2 serving as the bottom plate and the top plate, and supports the face plate members 1 and 2 or the side plate member 3 from the inside of the rainwater storage space. The strength of the rainwater storage / storage infiltration tank is increased against the pressure received from the surrounding earth and sand when buried in the ground.
[0063]
The periphery of the rainwater storage and penetration tank F is covered with a water-permeable protective layer 6 such as a nonwoven fabric in accordance with a well-known technique to prevent the inflow of earth and sand into the rainwater storage and penetration tank F.
[0064]
Since the face plate members 1 and 2 and the side plate member 3 have the openings 11, 21, and 31, respectively, in the plane, the rainwater flowing in from the inflow pipe 8 is temporarily stored, and through the openings 11, 21, and 31. It can penetrate into the ground.
[0065]
The rainwater storage / storage permeation tank F has a structure in which the side plate members 3 having the flat plate-like face plate members 1 and 2 and the partition plate 33 are laminated. Since it is a waveform received in a parallel direction (longitudinal direction), it is mechanically large enough for the load applied from the ground side, coupled with support by the support disposed between the opposing surfaces of the face plate members 1 and 2 Strength can be secured. Moreover, if the end surface of the support body is disposed in contact with the inner surface of the side plate member 3, coupled with the corrugation of the partition plate 33, it can sufficiently resist the earth pressure applied from the lateral direction. Can do.
[0066]
In FIG. 17, if the water-permeable protective layer 6 is replaced with the water-impervious layer 6 and the entire circumference including the bottom surface of the rainwater storage and penetration tank F is covered with the water-impervious layer 6, the rainwater storage tank can be configured.
[0067]
The present invention has been described in detail with reference to the preferred embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made by those skilled in the art based on the basic technical idea and teachings. It is self-evident that
[0068]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a rainwater storage / storage permeation tank having excellent mechanical strength.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a rainwater storage / storage penetration tank according to the present invention.
FIG. 2 is a perspective view showing an assembled state of the rainwater storage / storage penetration tank shown in FIG. 1;
FIG. 3 is an exploded perspective view showing an embodiment of a support member.
FIG. 4 is a plan view of a face plate member used as a bottom plate in the rainwater storage / storage infiltration tank according to the present invention.
FIG. 5 is an enlarged partial cross-sectional view taken along line 5-5 of FIG.
6 is a partially enlarged sectional view showing another embodiment of the protrusion shown in FIG. 5. FIG.
FIG. 7 is a plan view of a face plate member used as a top plate or an intermediate plate in the rainwater storage / storage penetration tank according to the present invention.
FIG. 8 is a perspective view of a side plate member included in a rainwater storage / storage infiltration tank according to the present invention.
9 is an enlarged partial sectional view taken along line 9-9 of FIG.
FIG. 10 is an exploded perspective view showing a part of the configuration of the rainwater storage / storage penetration tank according to the present invention.
FIG. 11 is an exploded perspective view showing a part of the configuration of the rainwater storage / storage penetration tank according to the present invention.
12 is a perspective view showing an assembled state of the rainwater storage / storage penetration tank shown in FIGS. 10 and 11. FIG.
FIG. 13 is a view for explaining the arrangement and connection of face plate members constituting the bottom plate.
FIG. 14 is a diagram for explaining the arrangement and connection of face plate members constituting a top plate or an intermediate plate.
FIG. 15 is a diagram illustrating the arrangement of side plate members.
FIG. 16 is a diagram illustrating another arrangement of side plate members.
FIG. 17 is a view showing a state in which the rainwater storage and penetration tank according to the present invention is buried in the ground.
[Explanation of symbols]
1, 2 Face plate member 13, 23 Concave portion 14, 24 Convex portion 15, 16, 25, 26 Protrusion 3 Side plate member S Support member

Claims

A rainwater storage / storage penetration tank including a face plate member, a side plate member, and a support member,
The face plate member has at least two pairs of opposing sides, and two opposite sides of the opposing sides set have a concave part and a convex part corresponding to each other, and each of the convex parts is at least It has a set of two protrusions facing each other at a distance from each other,
A plurality of the face plate members are provided, and the plurality of face plate members are arranged in a planar shape by fitting the convex portion provided on one of the two adjacent face plate members with the concave portion provided on the other. And are placed facing each other with a gap,
The side plate member is combined with one surface of the face plate member by concave and convex fitting,
A plurality of the side plate members are provided, and among the plurality of side plate members, the side plate member existing at the boundary between the two adjacent face plate members has one end provided on each convex portion of the two adjacent face plate members. Fitted between a pair of the protrusions and shared by two adjacent face plate members;
The support member is a rainwater storage / retention permeation tank disposed within a facing distance of the face plate member.

A rainwater storage / storage infiltration tank according to claim 1,
The support member is a rainwater storage / storage penetration tank formed in a cross shape.

A rainwater storage / retention permeation tank according to claim 1,
The support member is a rainwater storage / storage infiltration tank formed in a cross-beam shape.

A rainwater storage / storage infiltration tank according to any one of claims 1 to 3,
The support member is a rainwater storage / storage permeation tank composed of corrugated plates.