JP2014080798A - Water flowing structure of gutter block - Google Patents

Water flowing structure of gutter block Download PDF

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JP2014080798A
JP2014080798A JP2012229628A JP2012229628A JP2014080798A JP 2014080798 A JP2014080798 A JP 2014080798A JP 2012229628 A JP2012229628 A JP 2012229628A JP 2012229628 A JP2012229628 A JP 2012229628A JP 2014080798 A JP2014080798 A JP 2014080798A
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inlet
pet bottle
pass
entrance
flow
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JP5526210B2 (en
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Masaharu Oshiro
正治 大城
Yasuhiro Sasaki
康宏 佐々木
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RIUKON KK
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RIUKON KK
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Abstract

PROBLEM TO BE SOLVED: To provide an inlet of a flow passage in which flowing water from a road flows down, with such a width that PET bottles cannot pass therethrough and to provide other flow passages with such widths that PET bottles can pass therethrough, in a gutter block.SOLUTION: An inlet of a flow passage where flowing water from a road flows down is provided with such a width that PET bottles cannot pass therethrough but other flow passages are provided with such widths that PET bottles can pass therethrough. Therefore, even a quantity of water is allowed to pass and further, PET bottles are prevented from flowing in and flowing to the downstream side. Even if a PET bottle flows to the inlet, the inlet is prevented from being closed by the PET bottle and a flow is not stagnated. In the case where the inlet is made narrow partially such that a PET bottle cannot pass, it is partial to narrow the intake and a flow rate of flowing water is not reduced, thereby effectively preventing a road surface from being covered with water. In the case where the inlet is made as wide as to allow passage of a PET bottle but the PET bottle is disabled from passing by providing bisected materials in a horizontal direction, the inlet of flowing water can be widened, such that a quantity of flowing water is allowed to flow in.

Description

本発明は、道路の側溝を形成するコンクリートブロックにおける流水の通り道の構造に関する。 The present invention relates to a structure of a passage for running water in a concrete block forming a side groove of a road.

道路の側溝は、側溝ブロックを連続させることで形成されるが、流水と一緒にゴミが流れて来て側溝ブロックの入口を塞ぐことが頭痛の種である。特にペットボトルが浮いて来て入口を塞ぐと、塞がれる面積が大きいので、問題は深刻である。 A gutter on a road is formed by a series of gutter blocks, but it is a headache that dust flows along with running water and blocks the entrance of the gutter block. In particular, when a plastic bottle floats and closes the entrance, the problem is serious because the area covered is large.

特開2009−7889JP2009-7889A

特許文献1のように、下段水路と上段水路とを2階構造にしたブロックにおいて、雨水落下間隙から前記上段水路に溜まった雨水を下段水路に導く構造とすることが提案されている。しかし、この雨水落下間隙は狭いので、大雨等の際は、路面か冠水する恐れがある。
この雨水落下間隙を大きくすれば、雨水の通路が大きくなるので、路面の冠水は防げると思い勝ちだが、ペットボトルなどが浮いて流れて来て、雨水落下間隙の入口を塞ぐので、結局は、路面の冠水を防げない。
本発明の技術的課題は、このような問題に着目し、側溝ブロックにおいて、道路からの流水が流れ落ちる流路の入口は、ペットボトルが通過できず、その他の流路は、ペットボトルが通過できる広さにして、路面が冠水しないようにして水害を防止できるようにすることにある。
As in Patent Document 1, it has been proposed that a block in which a lower water channel and an upper water channel have a two-story structure have a structure that guides rainwater accumulated in the upper water channel from a rainwater fall gap to the lower water channel. However, since this rainwater fall gap is narrow, there is a risk of flooding the road surface during heavy rain.
If this rainwater fall gap is increased, the rainwater passage will be enlarged, so it is easy to think that flooding of the road surface can be prevented. Can not prevent flooding of the road surface.
The technical problem of the present invention pays attention to such a problem, and in the side groove block, the PET bottle cannot pass through the inlet of the flow path where the running water from the road flows down, and the PET bottle can pass through the other flow paths. The purpose is to prevent flood damage by preventing the road surface from being flooded.

請求項1は、道路の側溝を形成するコンクリートブロックにおいて、道路からの流水が流れ落ちる流路の入口は、横向きに開口しており、しかもペットボトルが通過できず、その他の流路は、ペットボトルが通過できる広さであることを特徴とする側溝ブロックの流路構造である。 The first aspect of the present invention is a concrete block that forms a side groove of a road. An inlet of a flow path through which flowing water from the road flows is opened sideways, and a plastic bottle cannot pass therethrough. It is the flow path structure of the gutter block characterized by the width which can pass through.

請求項2は、入口を部分的に狭くして、ペットボトルが通過不可能にするか、又はペットボトルが通過できる広さの入口に水平方向の2分割材を設けたことを特徴とする請求項1に記載の側溝ブロックの流路構造である。 The second aspect of the present invention is characterized in that the entrance is partially narrowed so that the PET bottle cannot pass therethrough, or a horizontal two-part dividing member is provided at the entrance having a width that allows the PET bottle to pass through. The flow path structure of the side groove block according to Item 1.

請求項3は、入口の上側及び/又は下側の縁にピン状体を植え込み、又は前記コンクリートブロックの上面に、ペットボトルの直径より狭い開口を1以上設けて、前記入口と並列の流れ込み口としたことを特徴とする請求項1又は請求項2に記載の側溝ブロックの流路構造である。 According to a third aspect of the present invention, a pin-like body is implanted at the upper and / or lower edge of the inlet, or one or more openings narrower than the diameter of the PET bottle are provided on the upper surface of the concrete block, and the inlet parallel to the inlet is provided. The channel structure of the side groove block according to claim 1 or 2, wherein

請求項4は、道路の側溝を形成するコンクリートブロックにおいて、道路からの流水が流れ落ちる流路の入口は、横向きに開口しており、しかもペットボトルが通過できず、その他の流路は、ペットボトルが通過できるように広くすることを特徴とする側溝ブロックの流水方法である。 According to a fourth aspect of the present invention, in the concrete block forming the side groove of the road, the entrance of the flow path from which the flowing water from the road flows is opened sideways, and the plastic bottle cannot pass therethrough. This is a method for flowing water in a gutter block, which is widened so that water can pass through.

請求項1のように、道路からの流水が流れ落ちる流路の入口は、ペットボトルが通過できず、その他の流路は、ペットボトルが通過できる広さにしてあるので、大量の水でも通過でき、しかもペットボトルが流れ込んて下流に流れることもない。また、万一、ペットボトルが入口まで流れて来たとしても、入口がペットボトルで閉鎖されて、流れが悪くなることはない。 As in claim 1, the entrance of the flow path from which the flowing water from the road flows cannot pass the plastic bottle, and the other flow paths are wide enough for the plastic bottle to pass, so even a large amount of water can pass. Moreover, the PET bottle does not flow in and flow downstream. Moreover, even if a PET bottle flows to the entrance, the entrance is closed with the PET bottle, and the flow does not deteriorate.

請求項2のように、入口を部分的に狭くして、ペットボトルが通過不可能にした場合は、入口を狭くするのは部分的であって、流水の流れる量は減らないので、路面の冠水を効果的に防止できる。また、ペットボトルが通過できる広さの入口とし、水平方向の2分割材を設けて、ペットボトルが通過不能にすると、流水の入口を広くできるので、大量に流水が流入でき、路面の冠水を防止できる。 When the entrance is partially narrowed so that the PET bottle cannot pass through as in claim 2, it is partial that the entrance is narrowed and the amount of flowing water does not decrease. Flooding can be effectively prevented. In addition, if the entrance is wide enough to allow PET bottles to pass through, and if a horizontal two-part material is provided and the PET bottles cannot pass, the inlet of running water can be widened. Can be prevented.

請求項3のように、入口の上側及び/又は下側の縁にピン状体を植え込むことによって、ペットボトルが入り込むのを阻止する構造にすると、ペットボトルで入口が塞がれることは少なく、流量を稼げる。また、前記コンクリートブロックの天壁に、ペットボトルの直径より狭い開口を1以上設けて、前記入口と並列の流れ込み口とした構造にすると、二つの流入路ができるので、流量を稼いで路面の冠水を効果的に防止できる。 As in claim 3, when the pin-like body is implanted at the upper and / or lower edge of the entrance to prevent the entrance of the plastic bottle, the entrance is rarely blocked by the plastic bottle, Earn a flow rate. In addition, if the top wall of the concrete block is provided with one or more openings narrower than the diameter of the PET bottle to form a flow inlet in parallel with the inlet, two inflow paths can be formed. Flooding can be effectively prevented.

請求項4のように、道路からの流水が流れ落ちる流路の入口は、ペットボトルが通過できず、その他の流路は、ペットボトルが通過できる広さにした方法によると、大量の水でも通過でき、しかもペットボトルが流れ込んて下流に流れることもない。また、万一、ペットボトルが入口まで流れて来たとしても、入口がペットボトルで閉鎖されて、流れが悪くなることはない。 According to the method of claim 4, the entrance of the flow path from which the running water from the road flows cannot pass the PET bottle, and the other flow path can pass even a large amount of water according to a method that allows the PET bottle to pass. In addition, PET bottles do not flow and do not flow downstream. Moreover, even if a PET bottle flows to the entrance, the entrance is closed with the PET bottle, and the flow does not deteriorate.

本発明の第一実施形態を示す図で、(1)は斜視図、(2)は断面図である。It is a figure which shows 1st embodiment of this invention, (1) is a perspective view, (2) is sectional drawing. 入口を狭くするための第二実施形態を示す斜視図である。It is a perspective view which shows 2nd embodiment for narrowing an inlet_port | entrance. 入口を狭くするための第三実施形態を示す斜視図である。It is a perspective view which shows 3rd embodiment for narrowing an inlet_port | entrance. コンクリート材料を節減して薄肉にした実施例の斜視図である。It is a perspective view of the Example which reduced the concrete material and made it thin. 上下に2分した分離型の実施例を示す斜視図である。It is a perspective view which shows the separated type Example divided into 2 parts up and down.

次に本発明による側溝ブロックの流水構造が実際上どのように具体化されるか実施形態を説明する。図1は本発明の第一実施形態を示す図で、(1)は斜視図、(2)は断面図であり、図1に示す側溝ブロックを連接することで側溝Gを形成する。コンクリート製のブロックは、底を形成する底壁1と、天井を形成する天壁2と、縁石を兼ねる縁石壁3と、この縁石壁3側の側壁4と道路側の側壁5とで、側溝Gを形成する。
縁石壁3側に、路面を向いた状態で横向きに形成された入口iに路面の水が流れ込み、鉛直に立った状態の流路Rを経て、側溝Gに流れ込む。より大量の水が側溝Gに流れ込めるように、流路Rの断面積Dは大きい方がよいが、ペットボトルなどが流れ込んで下流側に流れたり、目視できない場所で引っ掛かったりする恐れがある。
Next, an embodiment of how the flowing water structure of the gutter block according to the present invention is practically described will be described. FIG. 1 is a view showing a first embodiment of the present invention, where (1) is a perspective view and (2) is a cross-sectional view, and the side groove G is formed by connecting the side groove blocks shown in FIG. The concrete block is composed of a bottom wall 1 that forms the bottom, a top wall 2 that forms the ceiling, a curb wall 3 that also serves as a curb, a side wall 4 on the curb wall 3 side, and a side wall 5 on the road side. G is formed.
On the curb wall 3 side, the water on the road surface flows into the entrance i formed sideways while facing the road surface, and flows into the side groove G through the channel R in a standing state. The cross-sectional area D of the flow path R is preferably large so that a larger amount of water can flow into the side groove G. However, there is a possibility that a plastic bottle or the like flows and flows downstream or gets caught in a place where it cannot be visually observed.

そこで本発明では、入口iを狭くしている。すなわち、ペットボトルが流入できないように、ペットボトルの直径より小さい寸法dにしている。小要領の径の小さいペットボトルも入らないようにするには、その径よりも寸法dを小さくすることになる。
流量をもっと多くしたい場合は、(1)図の鎖線6のように、天壁2に開口を設けて、この開口6に、(2)図のような、金属製のグレーティング7を設けてもよい。なお、開口6は、ペットボトルが通過できなければ、単一でも可能である。
Therefore, in the present invention, the inlet i is narrowed. That is, the dimension d is smaller than the diameter of the plastic bottle so that the plastic bottle cannot flow in. In order to prevent a small-sized PET bottle having a small diameter from entering, the dimension d is made smaller than the diameter.
When it is desired to increase the flow rate, (1) an opening is provided in the top wall 2 as shown by a chain line 6 in the figure, and a metal grating 7 as shown in (2) is provided in the opening 6. Good. The opening 6 can be single as long as the plastic bottle cannot pass therethrough.

図2は、入口iを狭くするための第二実施形態を示す斜視図であり、入口iの上下の縁に所定の間隔で突起7、8を設けてもよい。そして、上下の突起7と8との間隔をdとする。突起7、8の存在しない領域は、dよりも大きくなるが、突起7、8の間隔を、そのペットボトルの高さ(長さ)より大きくすればよい。
なお、上下の突起7と8とが互いに対向するのでなく、互い違いに形成することも可能である。この場合は、突起7、8と、突起の無い縁との間隔dを、ペットボトルの外径より小さくする。
FIG. 2 is a perspective view showing a second embodiment for narrowing the inlet i, and protrusions 7 and 8 may be provided at predetermined intervals on the upper and lower edges of the inlet i. The distance between the upper and lower protrusions 7 and 8 is d. The region where the protrusions 7 and 8 do not exist is larger than d, but the interval between the protrusions 7 and 8 may be larger than the height (length) of the PET bottle.
Note that the upper and lower protrusions 7 and 8 do not face each other but can be formed alternately. In this case, the distance d between the protrusions 7 and 8 and the edge without the protrusion is made smaller than the outer diameter of the PET bottle.

突起7、8は、左右方向に長い形状をしているが、左右方向の寸法を限りなく小さくして、細いピンや釘状に形成してよい。この場合は、コンクリート製では容易に折損する恐れがあるので、ブロックを型枠から脱型した直後の、養生前に、ピン状体を植え込むのがよい。ピン状体が容易に離脱しないように、オネジ状に形成したり、表面を粗面化して、ブロックとの一体化が容易な形状にするのが好ましい。
突起7、8に代えてピン状体を用いる場合は、入口iの上側の縁又は下側の縁の一方に設ければよく、必ずしも両側に設ける必要はない。なお、細いピン状体を植え込む場合は、ペットボトルが入口iで阻止されても、水の円滑な流れが阻止されることは少ない。
The protrusions 7 and 8 have a shape that is long in the left-right direction. In this case, since it may break easily in concrete, it is better to implant a pin-like body immediately after the block is removed from the mold and before curing. In order to prevent the pin-shaped body from being easily detached, it is preferable that the pin-shaped body is formed in a male thread shape or the surface is roughened so that it can be easily integrated with the block.
When a pin-like body is used in place of the protrusions 7 and 8, it may be provided on one of the upper edge or the lower edge of the inlet i and is not necessarily provided on both sides. In the case of implanting a thin pin-like body, even if the PET bottle is blocked at the entrance i, the smooth flow of water is rarely blocked.

図3は、入口iを狭くするための第三実施形態を示す斜視図であり、入口iの左右両側に予め溝を形成しておき、その溝に、水平のパイプ9の両端を挿入してから、モルタルなどの接着手段で埋める。その結果、水平のパイプ9が容易に外れることはない。
なお、モルタルに代えて、接着材でパイプ9をブロックに固定してもよい。
FIG. 3 is a perspective view showing a third embodiment for narrowing the inlet i. Grooves are formed in advance on the left and right sides of the inlet i, and both ends of the horizontal pipe 9 are inserted into the groove. Then, fill with adhesive means such as mortar. As a result, the horizontal pipe 9 does not easily come off.
In addition, it may replace with mortar and may fix the pipe 9 to a block with an adhesive material.

図1(2)のような断面形状では、背壁4の下側の肉厚が大きく、コンクリート材料が無駄なため、背壁4の下部を薄肉にして、背壁4下部に切除部10を設けた形状が図4である。
また、図5は分離型の例であり、上下に2分してある。すなわち、天壁2と縁石壁3と背壁4上部とを、他の部分と分離してある。水流の入口iや入口に続く流路Rは、縁石壁3と背壁4上部とに有るので、図5のような分離型の場合でも適用される。
In the cross-sectional shape as shown in FIG. 1 (2), the thickness of the lower side of the back wall 4 is large and the concrete material is wasted. The provided shape is shown in FIG.
FIG. 5 shows an example of a separation type, which is divided into upper and lower parts. That is, the top wall 2, the curb wall 3 and the upper part of the back wall 4 are separated from other parts. Since the water flow inlet i and the flow path R following the inlet are in the curb wall 3 and the upper part of the back wall 4, the present invention can be applied even to the separation type as shown in FIG. 5.

以上のように、側溝ブロックにおいて、道路からの流水が流れ落ちる流路の入口は、ペットボトルが通過できず、その他の流路は、ペットボトルが通過できる広さにして、路面が冠水しないようにして水害を防止できるようにしたので、自然災害の抑止に貢献できる。 As described above, in the gutter block, the entrance of the flow path where the running water from the road flows down cannot pass the plastic bottle, and the other flow paths are wide enough to pass the plastic bottle so that the road surface is not flooded. Can help prevent natural disasters.

G 側溝
1 底壁
2 天壁
3 縁石壁
4 背壁
5 前壁
i 入口
R 流路
6 前壁の開口
g グレーティング
7・8 突起
9 水平のパイプ
10 切除部
G Side groove 1 Bottom wall 2 Top wall 3 Curb wall 4 Back wall 5 Front wall i Entrance R Channel 6 Front wall opening g Grating 7 and 8 Projection 9 Horizontal pipe 10 Cutting part

Claims (4)

道路の側溝を形成するコンクリートブロックにおいて、
道路からの流水が流れ落ちる流路の入口は、横向きに開口しており、しかもペットボトルが通過できず、
その他の流路は、ペットボトルが通過できる広さであることを特徴とする側溝ブロックの流路構造。
In the concrete block that forms the gutter of the road,
The entrance of the flow path where the running water from the road flows down opens sideways, and the plastic bottle cannot pass through.
The flow path structure of the side groove block, wherein the other flow path is wide enough to allow the PET bottle to pass therethrough.
入口を部分的に狭くして、ペットボトルが通過不可能にするか、又はペットボトルが通過できる広さの入口に水平方向の2分割材を設けたことを特徴とする請求項1に記載の側溝ブロックの流路構造。 The entrance is partially narrowed so that a PET bottle cannot pass therethrough, or a horizontal two-part dividing member is provided at an entrance wide enough to allow a PET bottle to pass through. Side channel block channel structure. 入口の上側及び/又は下側の縁にピン状体を植え込み、又は前記コンクリートブロックの上面に、ペットボトルの直径より狭い開口を1以上設けて、前記入口と並列の流れ込み口とすることにより、流水の通過流量を稼いだことを特徴とする請求項1又は請求項2に記載の側溝ブロックの流路構造。 By implanting a pin-like body on the upper and / or lower edge of the inlet, or providing one or more openings narrower than the diameter of the PET bottle on the upper surface of the concrete block, The flow path structure of the side groove block according to claim 1 or 2, wherein the flow rate of flowing water is earned. 道路の側溝を形成するコンクリートブロックにおいて、
道路からの流水が流れ落ちる流路の入口は、横向きに開口しており、しかもペットボトルが通過できず、
その他の流路は、ペットボトルが通過できるように広くすることを特徴とする側溝ブロックの流水方法。
In the concrete block that forms the gutter of the road,
The entrance of the flow path where the running water from the road flows down opens sideways, and the plastic bottle cannot pass through.
The other channel is widened so that the PET bottle can pass therethrough.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014134018A (en) * 2013-01-10 2014-07-24 Mc Sangyo Kk Walkway-roadway boundary curb block

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4896756U (en) * 1972-02-17 1973-11-16
JP2000328641A (en) * 1999-05-24 2000-11-28 Samuzu:Kk Side drain with lid slab having curb
JP3104418U (en) * 2004-04-02 2004-09-16 丸栄コンクリート工業株式会社 Drainage protection plate
JP2007092503A (en) * 2005-09-29 2007-04-12 Sugiaki Kusatake Block for side ditch, and its construction method
JP2009007889A (en) * 2007-06-29 2009-01-15 Landes Co Ltd Side ditch block and drainage canal constructed by joining the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4896756U (en) * 1972-02-17 1973-11-16
JP2000328641A (en) * 1999-05-24 2000-11-28 Samuzu:Kk Side drain with lid slab having curb
JP3104418U (en) * 2004-04-02 2004-09-16 丸栄コンクリート工業株式会社 Drainage protection plate
JP2007092503A (en) * 2005-09-29 2007-04-12 Sugiaki Kusatake Block for side ditch, and its construction method
JP2009007889A (en) * 2007-06-29 2009-01-15 Landes Co Ltd Side ditch block and drainage canal constructed by joining the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014134018A (en) * 2013-01-10 2014-07-24 Mc Sangyo Kk Walkway-roadway boundary curb block

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