JP2019203348A - Installation structure of drainage lid for planting zone - Google Patents

Installation structure of drainage lid for planting zone Download PDF

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JP2019203348A
JP2019203348A JP2018100444A JP2018100444A JP2019203348A JP 2019203348 A JP2019203348 A JP 2019203348A JP 2018100444 A JP2018100444 A JP 2018100444A JP 2018100444 A JP2018100444 A JP 2018100444A JP 2019203348 A JP2019203348 A JP 2019203348A
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planting
flat plate
drainage
installation structure
drainage lid
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JP7075047B2 (en
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暢久 山崎
Nobuhisa Yamazaki
暢久 山崎
求美 新川
Motomi Shinkawa
求美 新川
寛之 沼田
Hiroyuki Numata
寛之 沼田
智彦 山口
Tomohiko Yamaguchi
智彦 山口
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GROUND DESIGN KENKYUSHO KK
Nihon Sekkei Inc
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Nihon Sekkei Inc
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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    • Y02B80/32—Roof garden systems

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Abstract

To provide an installation structure of a drainage lid for a planting zone that can suppress the inflow of earth and sand, fallen leaves, etc. into a drainage pipe buried in the planting zone.SOLUTION: This is an installation structure of a drainage lid 100 for a planting zone installed above a drain pipe 300 buried in a planting zone 200. The drainage lid 100 for planting zone includes a flat plate portion 10 having a drain hole 11 in the approximate center and a cover portion 20 formed in a lattice shape or a mesh shape so as to cover the drain hole 11. The flat plate portion 10 is placed on an unpaved ground surface GL of the planting zone above the drain pipe 300.SELECTED DRAWING: Figure 1

Description

本発明は、植栽帯に埋設されている排水管の上方に設置する植栽帯用排水蓋の設置構造に関する。   The present invention relates to an installation structure of a drainage lid for a planting zone installed above a drain pipe buried in a planting zone.

昨今、特に都市部の緑化対策として植栽帯が設けられることが多くなっている。植栽帯は通常未舗装（表面が、アスファルト、セメントコンクリート、石等の堅硬な舗装材料で敷き固められていないことをいう。以下同じ。）であり、ある程度の雨水は未舗装の土中に透水される。ただし、近年、ゲリラ豪雨等が頻発するようになっていることから、植栽帯においても雨水排水能力の向上が求められており、そのため、植栽帯に排水管または排水管とともに排水桝等を埋設し、その排水管や排水桝を通じて雨水を排水するという対策が採られるようになってきている。   Recently, planting belts are often provided as a measure for greening in urban areas. The planting zone is usually unpaved (the surface is not solidified with hard paving materials such as asphalt, cement concrete, stone, etc .; the same shall apply hereinafter), and some rainwater will permeate into unpaved soil. Is done. However, due to the frequent occurrence of heavy rains such as guerrillas in recent years, there is a need for improved rainwater drainage capacity even in planting zones. For this reason, drainage dredges etc. are buried in the planting zones along with drainage pipes or drainage pipes. Measures to drain rainwater through the drain pipe and drainage basin have been taken.

このような排水管や排水桝の上方には、特許文献１に開示されているグレーチング蓋や特許文献２に開示されている通水蓋のような排水蓋が設置される。しかし、特許文献１や特許文献２に開示されている従来の排水蓋は、基本的に舗装された路面に設置されるもので、これをそのまま未舗装の植栽帯に設置した場合、土砂や落葉等が排水管へ多量に流入し、排水管が閉塞するなどの問題が生じる。   A drainage lid such as a grating lid disclosed in Patent Document 1 or a water-flow lid disclosed in Patent Document 2 is installed above the drainage pipe or drainage basin. However, the conventional drain lid disclosed in Patent Document 1 and Patent Document 2 is basically installed on a paved road surface, and when this is installed in an unpaved planting zone as it is, earth and sand or fallen leaves Etc. flows into the drain pipe in large quantities, and the drain pipe is blocked.

特開２００７−３０８９５４号公報JP 2007-308954 A 特開２００１−２６２６８０号公報JP 2001-262680 A

本発明が解決しようとする課題は、植栽帯に埋設されている排水管への土砂や落葉等の流入を抑制できる植栽帯用排水蓋の設置構造を提供することにある。   The problem to be solved by the present invention is to provide an installation structure of a drainage lid for a planting zone that can suppress the inflow of earth and sand, fallen leaves, etc. into a drain pipe buried in the planting zone.

本発明の一観点によれば、次の植栽帯用排水蓋の設置構造が提供される。
植栽帯に埋設されている排水管の上方に設置する植栽帯用排水蓋の設置構造であって、
前記植栽帯用排水蓋は、略中央に排水孔を有する平板部と、前記排水孔を覆うように格子状または網目状に形成された覆い部とを備え、
前記平板部が、前記排水管の上方における植栽帯の未舗装の地盤面に載置されている、植栽帯用排水蓋の設置構造。 According to one aspect of the present invention, the following installation structure of a drainage lid for a planting zone is provided.
It is an installation structure of a drainage lid for a planting zone to be installed above a drain pipe buried in the planting zone,
The drainage lid for the planting belt includes a flat plate portion having a drain hole at a substantially center, and a cover portion formed in a lattice shape or a mesh shape so as to cover the drain hole,
An installation structure of a drainage lid for a planting zone, wherein the flat plate portion is placed on an unpaved ground surface of the planting zone above the drainage pipe.

この設置構造において植栽帯用排水蓋は略中央に排水孔を有する平板部と、排水孔を覆うように格子状または網目状に形成された覆い部を備えるから、大きな石や落葉等はこの格子状または網目状の覆い部に引っ掛かる。また、植栽帯用排水蓋の平板部は植栽帯の地盤面に載置されているから、平板部の上面は平板部の厚さの分だけ植栽帯の地盤面より上に位置することとなり、土砂や落葉等が平板部の上面へ乗り上げにくくなる。さらに、排水管へ通じる排水孔は平板部の略中央にあるから、雨水とともに流れ込んでくる土砂や落葉等は、平板部の上面を伝わってから排水孔へ向かうことになる。これらにより、排水管への土砂や落葉等の流入が抑制される。
加えて、植栽帯用排水蓋の平板部が植栽帯の地盤面に載置されているということは、排水管の周囲の地盤面が平板部で覆われているということであり、これにより排水管の周囲の洗掘（浸食作用の一つで、雨水の流れによって排水管の周囲の土砂が削り崩されて窪みができる現象をいう。この窪みができると排水管へ雨水が流れ込みにくくなる。以下同じ。）を抑制することもできる。 In this installation structure, the drainage lid for the planting belt has a flat plate part having a drain hole in the center and a cover part formed in a lattice shape or a mesh shape so as to cover the drain hole. Hooked into a mesh or mesh cover. In addition, since the flat plate portion of the drainage lid for the planting belt is placed on the ground surface of the planting belt, the upper surface of the flat plate portion is positioned above the ground surface of the planting belt by the thickness of the flat plate portion, It is difficult for earth and sand or fallen leaves to climb onto the upper surface of the flat plate portion. Furthermore, since the drainage hole leading to the drainage pipe is in the approximate center of the flat plate portion, earth and sand, fallen leaves, etc. flowing along with the rainwater travel through the upper surface of the flat plate portion and then go to the drainage hole. By these, inflow of earth and sand, fallen leaves, etc. to a drain pipe is suppressed.
In addition, the fact that the flat plate part of the drainage lid for the planting belt is placed on the ground surface of the planting belt means that the ground surface around the drainage pipe is covered with the flat plate part. Scouring around the pipe (This is one of the erosion effects, and is a phenomenon in which earth and sand around the drainage pipe are scraped and formed into a dent by the flow of rainwater. If this dent is made, it will be difficult for rainwater to flow into the drainage pipe. The same shall apply hereinafter).

この設置構造において植栽帯用排水蓋の覆い部は平板部の外側面から上方に立ち上がる複数の縦桟を有し、複数の縦桟のそれぞれの立上り部が平板部の外側面から外方に突出する構成とすることができる。この構成により、土砂や落葉等が平板部の外側面から外方に突出する立上り部に引っ掛かりやすくなり、排水管への土砂や落葉等の流入抑制効果が向上する。   In this installation structure, the covering portion of the drainage lid for the planting belt has a plurality of vertical bars rising upward from the outer surface of the flat plate portion, and each rising portion of the plurality of vertical rails protrudes outward from the outer surface of the flat plate portion. It can be set as the structure to do. With this configuration, earth and sand, fallen leaves, and the like are easily caught on the rising part protruding outward from the outer surface of the flat plate part, and the inflow suppressing effect of earth and sand, fallen leaves, and the like to the drain pipe is improved.

この構成において、隣接する立上り部間の平板部の外側面は逆テーパとすることができる。これにより、土砂や落葉等が平板部の上面へ乗り上げにくくなり、排水管への土砂や落葉等の流入抑制効果が向上する。   In this configuration, the outer surface of the flat plate portion between adjacent rising portions can be reversely tapered. This makes it difficult for earth and sand, fallen leaves, and the like to climb onto the upper surface of the flat plate portion, and the effect of suppressing the inflow of earth and sand, fallen leaves, and the like to the drain pipe is improved.

また、隣接する縦桟間の隙間は下方に向けて狭くなるように構成することもできる。これにより、土砂や落葉等が隣接する縦桟間に引っ掛かりやすくなり、排水管への土砂や落葉等の流入抑制効果が向上する。   Moreover, it can also comprise so that the clearance gap between adjacent vertical bars may become narrow toward the downward direction. Thereby, earth and sand, fallen leaves, etc. become easy to get caught between the adjacent vertical bars, and the inflow suppression effect of earth and sand, fallen leaves, etc. to a drain pipe improves.

この設置構造において植栽帯用排水蓋は、平板部から下方に伸びる連結部を備え、この連結部と排水管とを着脱可能に連結するとこができる、これにより、植栽帯用排水蓋を排水管の上方に確実に設置することができる。   In this installation structure, the drainage lid for the planting belt has a connecting portion extending downward from the flat plate portion, and can be detachably connected to the connecting portion and the drainage pipe. It can be reliably installed above the top.

本発明によれば、植栽帯に埋設されている排水管への土砂や落葉等の流入を抑制できる。   According to the present invention, it is possible to suppress the inflow of earth and sand, fallen leaves, and the like into the drain pipe buried in the planting zone.

本発明の一実施形態である植栽帯用排水蓋の設置構造を示す概念図。The conceptual diagram which shows the installation structure of the drainage lid for planting belts which is one Embodiment of this invention. 図１に示した植栽帯用排水蓋の上方斜視図。The upper perspective view of the drainage lid for planting belts shown in FIG. 図１に示した植栽帯用排水蓋の下方斜視図。The lower perspective view of the drainage lid for planting belts shown in FIG. 図１に示した植栽帯用排水蓋の平面図。The top view of the drainage lid for planting belts shown in FIG. 図１に示した植栽帯用排水蓋のＡ−Ａ線断面図。The AA sectional view taken on the line of the drainage lid for planting belts shown in FIG. 図１に示した植栽帯用排水蓋のＢ−Ｂ線断面図。The BB sectional drawing of the drainage lid for planting belts shown in FIG. 図１に示した植栽帯用排水蓋の連結部と排水管との連結構造を示す分解斜視図。The disassembled perspective view which shows the connection structure of the connection part and drainage pipe of the drainage lid for planting belts shown in FIG. 排水管の周囲の洗掘を模式的に示す説明図。Explanatory drawing which shows typically scouring around a drain pipe.

図１に、本発明の一実施形態である植栽帯用排水蓋の設置構造を示している。また、図２〜６には図１に示した植栽帯用排水蓋を単独で示している。   In FIG. 1, the installation structure of the drainage lid for planting bands which is one Embodiment of this invention is shown. Moreover, in FIGS. 2-6, the drainage lid for planting zones shown in FIG. 1 is shown independently.

図１に示しているように、この実施形態において植栽帯用排水蓋１００は、未舗装の植栽帯２００に鉛直方向に埋設されている排水管３００の上方に設置されている。また、この排水管３００の下方には雨水浸透桝４００が設置されるとともに雨水搬送管５００が接続されている。植栽帯２００の周りには舗装された遊歩道６００が設置されており、雨水はこの遊歩道６００からも植栽帯２００へ流れ込んでくる。また、未舗装の植栽帯２００には土砂や落葉等（図示省略）が多く堆積しており、植栽帯用排水蓋１００へは雨水とともに土砂や落葉等が流れ込んでくる。この土砂や落葉等がそのまま排水管３００へ流入すると、排水管３００が閉塞するなどの問題が生じる。そこで、この実施形態の植栽帯用排水蓋の設置構造は、以下に述べるように、排水管３００への土砂や落葉等の流入を抑制できる構造としている。
なお、この実施形態において排水管３００の下方には雨水浸透桝４００が設置されるとともに雨水搬送管５００が接続されているが、これに限定されず、雨水浸透桝が設置されず、雨水搬送管のみが排水管に接続されていてもよい。 As shown in FIG. 1, in this embodiment, the drainage lid 100 for a planting zone is installed above a drainage pipe 300 that is buried in an unpaved planting zone 200 in the vertical direction. In addition, a rainwater seepage trough 400 is installed below the drainage pipe 300 and a rainwater transport pipe 500 is connected thereto. A paved promenade 600 is installed around the planting zone 200, and rainwater flows from the promenade 600 into the planting zone 200. Moreover, a lot of earth and sand, fallen leaves, and the like (not shown) are accumulated in the unpaved planting zone 200, and earth and sand, fallen leaves and the like flow into the planting zone drain cover 100 together with rainwater. When this earth and sand, fallen leaves, etc. flow into the drain pipe 300 as they are, there arises a problem that the drain pipe 300 is blocked. In view of this, the installation structure of the drainage lid for the planting belt of this embodiment has a structure that can suppress the inflow of earth and sand, fallen leaves, and the like into the drainage pipe 300 as described below.
In this embodiment, a rainwater seepage trough 400 is installed below the drainage pipe 300 and a rainwater transport pipe 500 is connected thereto. However, the present invention is not limited to this. Only may be connected to the drain pipe.

まず、植栽帯用排水蓋１００の構成について図２〜６を参照しつつ説明すると、この植栽帯用排水蓋１００は鋳鉄製であり、平板部１０と覆い部２０と連結部３０とを備えている。   First, the configuration of the drainage lid for planting band 100 will be described with reference to FIGS. 2 to 6. The drainage lid for planting band 100 is made of cast iron and includes a flat plate part 10, a cover part 20, and a connecting part 30. Yes.

この実施形態において平板部１０は四角形（正方形状）であり、その略中央に円形状の排水孔１１を有する。なお、平板部１０の形状は四角形状（正方形状）には限定されず、例えば長方形状、多角形状、円形状や楕円形状であってもよい。また、排水孔１１の形状も円形状には限定されない。   In this embodiment, the flat plate portion 10 has a quadrangular shape (square shape), and has a circular drainage hole 11 at the approximate center thereof. The shape of the flat plate portion 10 is not limited to a quadrangular shape (square shape), and may be, for example, a rectangular shape, a polygonal shape, a circular shape, or an elliptical shape. Further, the shape of the drain hole 11 is not limited to a circular shape.

この実施形態において覆い部２０は、平板部１０の排水孔１１を覆うように格子状に形成されている。具体的には、この実施形態において覆い部２０は、平板部１０の４つの外側面１０ａからそれぞれ上方に立ち上がる複数の縦桟２１を有するとともに、対向する縦桟２１，２１の上端部どうしを連結する横桟２２を有し、これら縦桟２１および横桟２２の組合せにより、排水孔１１を覆うように格子状に形成されている。なお、図２に表れているように、この実施形態において縦桟２１の上端部は全て同じ高さというわけではなく、異なる高さの横桟２２が形成されている。また、これら複数の縦桟２１の立上り部２１ａは平板部１０の外側面１０ａから外方に突出している。   In this embodiment, the cover portion 20 is formed in a lattice shape so as to cover the drain holes 11 of the flat plate portion 10. Specifically, in this embodiment, the cover portion 20 has a plurality of vertical beams 21 rising upward from the four outer surfaces 10a of the flat plate portion 10 and connects the upper ends of the opposed vertical beams 21 and 21 to each other. A horizontal bar 22 is formed, and a combination of the vertical bar 21 and the horizontal bar 22 is formed in a lattice shape so as to cover the drainage hole 11. As shown in FIG. 2, in this embodiment, the upper ends of the vertical bars 21 are not all the same height, and horizontal bars 22 having different heights are formed. Further, the rising portions 21 a of the plurality of vertical bars 21 protrude outward from the outer surface 10 a of the flat plate portion 10.

さらに、隣接する立上り部２１ａ，２１ａ間の平板部１０の外側面１０ａは、図５に明確に表れているように逆テーパとなっている。なお、逆テーパとは周知のとおり上方に向かうに従い拡大する形状をいう。また、図５および図６に明確に表れているように、隣接する縦桟２１，２１間の隙間Ｓは下方に向けて狭くなっている。
なお、この実施形態において、外側面１０ａを鉛直方向の面や正テーパ（上方に向かうに従い縮小する形状）とすることもできるし、また、隣接する縦桟２１，２１間の上方の隙間と下方の隙間を同じ間隔とすることや、上方に向けて狭くすることもできる。土砂や落葉等を引っ掛かりやすくし、土砂や落葉等の排水管への流入抑制効果を向上させるには、この実施形態のように外側面１０ａを逆テーパとするとともに、隙間Ｓが下方に向けて狭くなっていることが好ましい。 Furthermore, the outer side surface 10a of the flat plate portion 10 between the adjacent rising portions 21a and 21a has a reverse taper as clearly shown in FIG. The reverse taper is a shape that expands upward as is well known. Further, as clearly shown in FIGS. 5 and 6, the gap S between the adjacent vertical bars 21 and 21 is narrowed downward.
In this embodiment, the outer side surface 10a can be a vertical surface or a positive taper (a shape that decreases toward the upper side), and the upper gap between the adjacent vertical rails 21 and 21 and the lower side. These gaps can be made the same interval or narrowed upward. In order to make it easy to catch earth and sand and fallen leaves, and to improve the effect of suppressing the inflow of earth and sand and fallen leaves into the drain pipe, the outer surface 10a is reversely tapered as in this embodiment, and the gap S is directed downward. It is preferable that it is narrow.

また、この実施形態において覆い部２０は、縦桟２１および横桟２２の組合せにより格子状に形成したが、複数の縦桟２１および横桟２２の組合せにより網目状に形成することもできる。また、複数の縦桟２１は平板部１０の４つの外側面１０ａから立ち上げるのではなく、平板部１０の上面１０ｂから立ち上げるようにすることもできる。要するに覆い部２０は、排水孔１１を覆うように格子状または網目状に形成すればよい。   In this embodiment, the cover portion 20 is formed in a lattice shape by a combination of the vertical rails 21 and the horizontal rails 22, but may be formed in a mesh shape by a combination of the plurality of vertical rails 21 and the horizontal rails 22. Further, the plurality of vertical bars 21 may be raised from the upper surface 10 b of the flat plate portion 10 instead of rising from the four outer side surfaces 10 a of the flat plate portion 10. In short, the cover portion 20 may be formed in a lattice shape or a mesh shape so as to cover the drain holes 11.

この実施形態において連結部３０は平板部１０から下方に伸びるように形成されており、この連結部３０と排水管３００とが着脱可能に連結される。具体的には、この実施形態において連結部３０は、平板部１０の排水孔１１を囲むように排水孔１１の周囲に等間隔で３箇所に形成されており、排水管３００と連結するために連結溝３１が３箇所の連結部３０に各々形成されている。そして、排水管３００と連結する際には図７に示しているように、排水管３００に連結ピン３０１を設置するとともに、この連結ピン３０１に連結溝３１の開口端を嵌め合せ、植栽帯用排水蓋１００を反時計回りに回転させる。これにより、植栽帯用排水蓋１００が連結部３０を介して排水管３００に連結される。一方、植栽帯用排水蓋１００を排水管３００から取り外す際には、植栽帯用排水蓋１００を時計回りに回転させて、連結ピン３０１を連結溝３１の開口端から取り外す。このように、この実施形態では、連結部３０を介して植栽帯用排水蓋１００を排水管３００の上方に確実に設置することができる。しかも、この実施形態の連結部３０によれば、前述のとおりワンタッチ方式で植栽帯用排水蓋１００を排水管３００に着脱可能であるので、植栽帯用排水蓋１００の設置または撤去の作業や、排水管３００の清掃作業が容易となる。
なお、この実施形態では連結部３０を介さずに、単に植栽帯用排水蓋を排水管の上方に設置することもできる。植栽帯用排水蓋を排水管の上方に確実に設置するには、この実施形態のように連結部を備えることが好ましい。また、連結部の構成としては、この実施形態の連結部３０のように連結溝３１と連結ピン３０１によるワンタッチ方式とすることがより好ましい。 In this embodiment, the connecting portion 30 is formed to extend downward from the flat plate portion 10, and the connecting portion 30 and the drain pipe 300 are detachably connected. Specifically, in this embodiment, the connecting portion 30 is formed at three locations around the drain hole 11 at equal intervals so as to surround the drain hole 11 of the flat plate portion 10, and is connected to the drain pipe 300. The connection groove 31 is formed in each of the three connection portions 30. And when connecting with the drain pipe 300, as shown in FIG. 7, while installing the connection pin 301 in the drain pipe 300, the opening end of the connection groove | channel 31 is fitted to this connection pin 301, and it is for planting belts. The drain lid 100 is rotated counterclockwise. Thereby, the drainage lid 100 for planting zones is connected to the drainage pipe 300 through the connecting portion 30. On the other hand, when removing the planting band drain cover 100 from the drain pipe 300, the planting band drain cover 100 is rotated clockwise to remove the connection pin 301 from the open end of the connection groove 31. Thus, in this embodiment, the drainage lid 100 for planting zones can be reliably installed above the drainage pipe 300 via the connecting portion 30. Moreover, according to the connecting portion 30 of this embodiment, since the drainage lid 100 for planting belts can be attached to and detached from the drainage pipe 300 by the one-touch method as described above, the operation of installing or removing the drainage lid 100 for planting belts, Cleaning of the drain pipe 300 is facilitated.
In this embodiment, the drainage lid for the planting zone can be simply installed above the drainage pipe without using the connecting portion 30. In order to reliably install the drainage lid for planting zones above the drainage pipe, it is preferable to provide a connecting portion as in this embodiment. Moreover, as a structure of a connection part, it is more preferable to set it as the one-touch system by the connection groove | channel 31 and the connection pin 301 like the connection part 30 of this embodiment.

次に、この実施形態の植栽帯用排水蓋の設置構造の作用効果について説明する。
この実施形態において植栽帯用排水蓋１００は排水孔１１を覆うように格子状に形成された覆い部２０を備えるから、大きな石や落葉等はこの格子状の覆い部２０に引っ掛かる。また、植栽帯用排水蓋１００の平板部１０は、図１に示しているように植栽帯２００の地盤面ＧＬに載置されているから、平板部１０の上面１０ｂは平板部１０の厚さの分だけ植栽帯２００の地盤面ＧＬより上に位置することとなり、土砂や落葉等が平板部１０の上面１０ｂへ乗り上げにくくなる。さらに、排水管３００へ通じる排水孔１１は平板部１０の略中央にあるから、雨水とともに流れ込んでくる土砂や落葉等は、平板部１０の上面１０ｂを伝わってから排水孔１１へ向かうことになる。これらにより、排水管３００への土砂や落葉等の流入が抑制される。
加えて、植栽帯用排水蓋１００の平板部１０が植栽帯２００の地盤面ＧＬに載置されているということは、排水管３００の周囲の地盤面ＧＬが平板部１０で覆われているということであり、これにより排水管３００の周囲の洗掘を抑制することができる。ここで、洗掘とは、例えば図８に模式的に示しているように、雨水の流れによって排水管３００の周囲の土砂が削り崩されて窪みＤができる現象をいう。この実施形態では、図１に示しているように排水管３００の周囲の地盤面ＧＬが平板部１０で覆われているから、排水管３００の周囲の土砂が削り崩されず、洗掘を抑制することができる。なお、この実施形態において排水管３００の上部側面には透水用の孔は設けられていないので、図８に示しているように洗掘により排水管３００の上部周囲に窪みＤができると、その窪みＤに雨水が溜まってしまうといった問題が生じるところ、この実施形態によれば洗掘を抑制することができるので、前述の問題が生じることを抑制できる。 Next, the effect of the installation structure of the drainage lid for planting zones of this embodiment is demonstrated.
In this embodiment, since the drainage lid 100 for planting belts is provided with the cover part 20 formed in the grid | lattice form so that the drain hole 11 may be covered, a big stone, a fallen leaf, etc. are caught by this grid | lattice-like cover part 20. Moreover, since the flat plate part 10 of the drainage lid 100 for planting bands is mounted on the ground surface GL of the planting band 200 as shown in FIG. 1, the upper surface 10 b of the flat plate part 10 is the thickness of the flat plate part 10. Therefore, it will be located above the ground surface GL of the planting zone 200, and it will be difficult for earth and sand, fallen leaves, etc. Furthermore, since the drainage hole 11 leading to the drainage pipe 300 is in the approximate center of the flat plate portion 10, earth and sand, fallen leaves, etc. flowing along with the rainwater travel to the drainage hole 11 after passing through the upper surface 10 b of the flat plate portion 10. . Accordingly, the inflow of earth and sand, fallen leaves, and the like into the drain pipe 300 is suppressed.
In addition, the fact that the flat plate portion 10 of the drainage lid 100 for planting belt is placed on the ground surface GL of the planting belt 200 means that the ground surface GL around the drainage pipe 300 is covered with the flat plate portion 10. Thus, scouring around the drainage pipe 300 can be suppressed. Here, scouring refers to a phenomenon in which, for example, as shown schematically in FIG. 8, the earth and sand around the drainage pipe 300 are crushed by the flow of rainwater to form a dent D. In this embodiment, since the ground surface GL around the drainage pipe 300 is covered with the flat plate portion 10 as shown in FIG. 1, the earth and sand around the drainage pipe 300 is not crushed and suppresses scouring. be able to. In addition, in this embodiment, since the hole for water permeability is not provided in the upper side surface of the drain pipe 300, if the dent D is made around the upper part of the drain pipe 300 by scouring as shown in FIG. Where there is a problem that rainwater accumulates in the recess D, according to this embodiment, scouring can be suppressed, so that the aforementioned problem can be suppressed.

以上がこの実施形態の植栽帯用排水蓋の設置構造による基本的な作用効果であるが、この実施形態によれば、付加的に以下の作用効果が得られる。
すなわち、この実施形態では、複数の縦桟２１のそれぞれの立上り部２１ａが平板部１０の外側面１０ａから外方に突出しているから、土砂や落葉等が平板部１０の外側面１０ａから外方に突出する立上り部２１ａに引っ掛かりやすくなり、排水管３００への土砂や落葉等の流入抑制効果が向上する。
また、この実施形態では、複数の縦桟２１の隣接する立上り部２１ａ，２１ａ間の平板部の外側面１０ａは逆テーパとなっているから、土砂や落葉等が平板部１０の上面１０ｂへさらに乗り上げにくくなり、排水管３００への土砂や落葉等の流入抑制効果が向上する。
さらに、この実施形態では、隣接する縦桟２１，２１間の隙間Ｓが下方に向けて狭くなっているから、土砂や落葉等が隣接する縦桟２１，２１間に引っ掛かりやすくなり、排水管３００への土砂や落葉等の流入抑制効果が向上する。 The above is the basic function and effect of the installation structure of the drainage lid for planting zones of this embodiment, but according to this embodiment, the following function and effect are additionally obtained.
That is, in this embodiment, since the rising portions 21a of the plurality of vertical bars 21 protrude outward from the outer surface 10a of the flat plate portion 10, earth and sand, fallen leaves, and the like are outward from the outer surface 10a of the flat plate portion 10. It becomes easy to get caught in the rising part 21a protruding to the bottom, and the effect of suppressing the inflow of earth and sand, fallen leaves, etc. into the drain pipe 300 is improved.
In this embodiment, since the outer surface 10a of the flat plate portion between the adjacent rising portions 21a, 21a of the plurality of vertical bars 21 is reversely tapered, earth and sand, fallen leaves, etc. are further applied to the upper surface 10b of the flat plate portion 10. It becomes difficult to ride up, and the effect of suppressing the inflow of sediment, fallen leaves, etc. into the drain pipe 300 is improved.
Further, in this embodiment, since the gap S between the adjacent vertical bars 21 and 21 is narrowed downward, earth and sand, fallen leaves and the like are easily caught between the adjacent vertical bars 21 and 21, and the drain pipe 300. The inflow suppression effect of earth and sand and fallen leaves is improved.

以上、本発明の実施形態を説明したが、本発明がこの実施形態に限定されず各種の変形が可能であることは既に述べているところであり、これら以外にも本発明の技術的思想を逸脱しない範囲内で各種の変形が可能であることは当業者に自明である。   Although the embodiment of the present invention has been described above, it has already been described that the present invention is not limited to this embodiment and can be modified in various ways. Other than these, it departs from the technical idea of the present invention. It will be apparent to those skilled in the art that various modifications can be made without departing from the scope.

１００ 植栽帯用排水蓋
１０ 平板部
１０ａ 外側面
１０ｂ 上面
１１ 排水孔
２０ 覆い部
２１ 縦桟
２１ａ 立上り部
３０ 連結部
３１ 連結溝
２００ 植栽帯
３００ 排水管
３０１ 連結ピン
４００ 雨水浸透桝
５００ 雨水搬送管
６００ 遊歩道 DESCRIPTION OF SYMBOLS 100 Planting belt drain cover 10 Flat plate part 10a Outer side surface 10b Upper surface 11 Drainage hole 20 Cover part 21 Vertical beam 21a Standing part 30 Connection part 31 Connection groove 200 Planting band 300 Drain pipe 301 Connection pin 400 Rainwater infiltration trough 500 Rainwater conveyance pipe 600 Boardwalk

Claims (5)

植栽帯に埋設されている排水管の上方に設置する植栽帯用排水蓋の設置構造であって、
前記植栽帯用排水蓋は、略中央に排水孔を有する平板部と、前記排水孔を覆うように格子状または網目状に形成された覆い部とを備え、
前記平板部が、前記排水管の上方における植栽帯の未舗装の地盤面に載置されている、植栽帯用排水蓋の設置構造。 It is an installation structure of a drainage lid for a planting zone to be installed above a drain pipe buried in the planting zone,
The drainage lid for the planting belt includes a flat plate portion having a drain hole at a substantially center, and a cover portion formed in a lattice shape or a mesh shape so as to cover the drain hole,
An installation structure of a drainage lid for a planting zone, wherein the flat plate portion is placed on an unpaved ground surface of the planting zone above the drainage pipe. 前記覆い部は前記平板部の外側面から上方に立ち上がる複数の縦桟を有し、前記複数の縦桟のそれぞれの立上り部が前記平板部の外側面から外方に突出している、請求項１に記載の植栽帯用排水蓋の設置構造。   The said cover part has several vertical rails which stand up from the outer surface of the said flat plate part, and each rising part of these vertical bars protrudes outward from the outer surface of the said flat plate part. The installation structure of the drainage lid for planting belts as described in 2. 隣接する立上り部間の前記平板部の外側面が逆テーパとなっている、請求項２に記載の植栽帯用排水蓋の設置構造。   The installation structure of the drainage lid for planting bands of Claim 2 with which the outer surface of the said flat plate part between adjacent rising parts becomes reverse taper. 前記覆い部は前記平板部から上方に立ち上がる複数の縦桟を有し、隣接する縦桟間の隙間が下方に向けて狭くなっている、請求項１から３のいずれかに記載の植栽帯用排水蓋の設置構造。   4. The planting belt according to claim 1, wherein the covering portion has a plurality of vertical rails rising upward from the flat plate portion, and a gap between adjacent vertical rails is narrowed downward. Installation structure of drain lid. 前記植栽帯用排水蓋は、前記平板部から下方に伸びる連結部を備え、この連結部と前記排水管とが着脱可能に連結されている、請求項１から４のいずれかに記載の植栽帯用排水蓋の設置構造。   The planting band according to any one of claims 1 to 4, wherein the drainage lid for the planting band includes a connecting part extending downward from the flat plate part, and the connecting part and the drain pipe are detachably connected. The installation structure of the drainage lid.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4400272A (en) * 1981-06-08 1983-08-23 Logsdon Duane D Drain grate with adjustable weirs
JP3119232U (en) * 2005-12-05 2006-02-16 東海電工株式会社 Drain lid
CN102493546A (en) * 2011-11-14 2012-06-13 联塑市政管道（河北）有限公司 Plastic residue screen used for water drainage
US8557109B1 (en) * 2012-09-13 2013-10-15 Mark Sutherland Drain cover for generally open flat drainage areas with debris blockage and open drainage portions
JP2016020631A (en) * 2012-12-12 2016-02-04 簡佑家 Catch basin capable of coping with step difference
JP2016125209A (en) * 2014-12-26 2016-07-11 有限会社ウイング Grating for exhaust port of l-shaped side gutter
JP2018059362A (en) * 2016-10-07 2018-04-12 居林遠藤建設株式会社 Catch basin, u-shaped side gutter, and construction method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4400272A (en) * 1981-06-08 1983-08-23 Logsdon Duane D Drain grate with adjustable weirs
JP3119232U (en) * 2005-12-05 2006-02-16 東海電工株式会社 Drain lid
CN102493546A (en) * 2011-11-14 2012-06-13 联塑市政管道（河北）有限公司 Plastic residue screen used for water drainage
US8557109B1 (en) * 2012-09-13 2013-10-15 Mark Sutherland Drain cover for generally open flat drainage areas with debris blockage and open drainage portions
JP2016020631A (en) * 2012-12-12 2016-02-04 簡佑家 Catch basin capable of coping with step difference
JP2016125209A (en) * 2014-12-26 2016-07-11 有限会社ウイング Grating for exhaust port of l-shaped side gutter
JP2018059362A (en) * 2016-10-07 2018-04-12 居林遠藤建設株式会社 Catch basin, u-shaped side gutter, and construction method

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