JP2013036311A

JP2013036311A - Culvert type block, division block of the same and truck for movement

Info

Publication number: JP2013036311A
Application number: JP2011183110A
Authority: JP
Inventors: Sugiaki Kusatake; 杉晃草竹
Original assignee: KUSATAKE CONCRETE KOGYO KK
Current assignee: KUSATAKE CONCRETE KOGYO KK
Priority date: 2011-08-08
Filing date: 2011-08-08
Publication date: 2013-02-21
Anticipated expiration: 2031-08-08
Also published as: JP5717029B2

Abstract

PROBLEM TO BE SOLVED: To provide a culvert type block which has sufficient strength even when a wheel load or the like is loaded from the above and is usable as an efficient water conduit or passage enabling a person to enter and work inside a hole when removing sediment such as sludge accumulated inside the hole and foreign matters hooked inside the hole or performing a periodic inspection or the like, the culvert type block which is easy to mold, and its division block and a truck for movement inside the block.SOLUTION: An upper surface 2a of a block body 2 having a hole 3 along a longitudinal direction in the inside has a prescribed thickness from an upper part of the hole 3. A cross-sectional shape of the hole 3 is turned to a modified shape for which respective corner parts of a roughly bilaterally symmetrical and roughly triangle shape are respectively contracted inwards to form an outward convex curved or bent shape, a peak part 3c is formed into a roughly chevron shape, respective side parts of the roughly triangle shape are respectively swollen outwards to form the outward convex curved or bent shape and both side parts 3b and a bottom side part 3a are formed. Inside the hole 3, at least a person can enter in a crawling posture.

Description

本発明は暗渠型ブロック及びその分割ブロック及び移動用台車に関し、詳しくは、例えば道路に埋設施工されてその上方から輪荷重等が負荷されても十分な強度を有する水路用ブロック、道路や軌道下或いは各種場所のトンネルを形成する通路用ブロック等、水路や通路等として使用可能な暗渠型ブロック及びその分割ブロック、及びブロック内の移動用台車に関するものである。 The present invention relates to a culvert block, its divided blocks, and a moving carriage, and more particularly, for example, a waterway block, road or under track that has sufficient strength even if it is buried in a road and is loaded with a wheel load or the like from above. Alternatively, the present invention relates to a culvert block that can be used as a waterway or a passage, such as a passage block that forms a tunnel in various places, a divided block thereof, and a moving carriage in the block.

従来、例えば暗渠型水路ブロックとして、下記の特許文献１に開示されるように、内部に長手方向に沿う水路を有し、上面が水路上部との間に所定厚みを有してなり、上記水路の断面形状が略山形状の上部を有する略扁平異形状で、略左右対称状をなし、左右方向に延びる底辺部に相対し、頂部の左右両側が所定勾配の斜降状をなして略山形状となされた上辺部の左右両端を、上記底辺部に連設せる両側辺部の上端に夫々連続させて形成されたものがある。 Conventionally, for example, as a culvert-type water channel block, as disclosed in Patent Document 1 below, a water channel along the longitudinal direction is provided inside, and the upper surface has a predetermined thickness between the water channel upper portion, and the water channel The cross-sectional shape is a substantially flat irregular shape having a substantially mountain-shaped upper part, is substantially bilaterally symmetric, is opposed to the bottom part extending in the left-right direction, and the left and right sides of the top part form a slope with a predetermined slope. There is one in which the left and right ends of the upper side portion formed into a shape are respectively connected to the upper ends of both side portions that are connected to the bottom side portion.

特開２００８−１６３７０８号公報 JP 2008-163708 A

しかしながら、かかる従来の暗渠型水路ブロックは、水路の断面形状が略山形状の上部を有する扁平異形状、即ち、断面円形に比し底部から上部方向への広がりを抑えてその断面高さを低くして上下高さが左右幅に比し小さくなされた形状であるため、ブロックの強度面や、ブロック高さを低く抑え埋設時に深掘せずにすむ施工性等の点で有効である反面、施工後水路内部に汚泥等の堆積物が溜まって水はけが悪くなった場合や比較的大きな異物が引っ掛かったりした異常時に、堆積物や異物を除去すべく、或いは、定期点検のために水路内に人が進入して作業するようなことは想定外で、人が進入しようとしても水路の上下高さが不十分で進入できなかったり、仮に進入できても水路内での身動きが困難で作業ができず、又、危険を伴うといった問題点がある。又、水路の断面形状がたとえ扁平異形状であっても水路の上下高さと左右幅が十分大きい場合には、人が進入しての堆積物や異物の除去作業や点検作業は可能であるが、その場合には水路の断面形状が本来の排水処理のみに必要な形状よりも大きくなり、これに伴いブロック自体も嵩張って無駄が生じて不経済になりやすいといった問題点がある。更に、水路が扁平異形状の特殊な断面形状を有することから、成形技術を要して一体成形が難しいという問題点もある。
本発明はかかる従来の問題点に鑑みてなされたものであって、上方から輪荷重等が負荷されても十分な強度を有するとともに、孔内部に溜まった汚泥等の堆積物や孔内部に引っ掛かった異物等の除去、或いは定期点検等に際し、孔内に人が進入して作業可能で無駄のない水路や通路として使用可能な暗渠型ブロック及び成形しやすい暗渠型ブロック及びその分割ブロック、及びブロック内の人の移動を容易にするための移動用台車を提供することを課題としている。However, such a conventional underwater channel block has a flat cross-sectional shape having a substantially mountain-shaped cross section, that is, its cross-sectional height is reduced by suppressing the spread from the bottom to the upper direction compared to a circular cross section. Since the vertical height is smaller than the horizontal width, it is effective in terms of the strength of the block and the workability that keeps the block height low and does not require deep digging, After construction, if sediment such as sludge accumulates in the waterway and the water drains or becomes abnormal, such as when a relatively large foreign object is caught, it is necessary to remove the deposit or foreign substance, or for periodic inspection. It is unexpected that a person will enter and work, and even if a person tries to enter, the vertical height of the waterway is insufficient and cannot be entered, or even if it can enter, the movement in the waterway is difficult and work is difficult. If you ca n’t do it, Tsu was there is a problem. In addition, even if the cross-sectional shape of the water channel is flat, if the vertical height and left-right width of the water channel are sufficiently large, it is possible to remove or inspect the deposits and foreign matter that have entered by the person. In this case, there is a problem that the cross-sectional shape of the water channel becomes larger than the shape necessary only for the original wastewater treatment, and the block itself is bulky and wasteful and is uneconomical. In addition, since the water channel has a special cross-sectional shape with a flattened shape, there is a problem that it is difficult to perform integral molding because a molding technique is required.
The present invention has been made in view of such conventional problems, and has sufficient strength even when a wheel load or the like is applied from above, and is trapped in deposits such as sludge accumulated in the hole or in the hole. When removing foreign objects, periodic inspections, etc., a culvert type block that can be used as a waterway or passage that can be operated by a person entering the hole and that is not wasteful, and a culvert type block that is easy to mold, and its divided blocks, and blocks It is an object of the present invention to provide a moving carriage for facilitating movement of people inside.

上記課題を解決するために、本発明の暗渠型ブロックは、内部に長手方向に沿う孔３を有するブロック本体２の上面２ａが孔３上部との間に所定厚みを有してなり、上記孔３の断面形状が、略左右対称で略三角形の各角部が夫々外方に向け凸湾曲又は凸屈曲状をなすべく内方に収縮され、頂部３ｃが略山形状に形成されるとともに、上記略三角形の各辺部が夫々外方に向け凸湾曲又は凸屈曲状をなすべく外方に膨出されて両側辺部３ｂ及び底辺部３ａが形成された異形状をなし、孔３内部に少なくとも人が四つん這い姿勢で進入可能となされたものである。 In order to solve the above-mentioned problem, the culvert type block of the present invention has a predetermined thickness between the upper surface 2a of the block main body 2 having the hole 3 in the longitudinal direction and the upper part of the hole 3, and the hole The cross-sectional shape of FIG. 3 is substantially bilaterally symmetric and each corner of the substantially triangular shape is contracted inward to form a convex curve or a convex bent shape outward, and the top 3c is formed in a substantially mountain shape. Each side portion of the substantially triangular shape has an irregular shape in which both side portions 3b and a bottom portion 3a are formed to bulge outward to form a convex curve or convex bend toward the outside, and at least inside the hole 3 A person is allowed to enter on all fours.

又、本発明の暗渠型ブロックは、上記特定断面形状の孔３を有するブロック本体２がその断面における縦又は横方向で少なくとも二分割され、該分割ブロック４が接合一体化されてブロック本体２が形成された構成を採用することができる。
又、本発明の分割ブロックは、上記特定断面形状の孔３を有するブロック本体２がその断面における縦又は横方向で略半割状に二分割されてなる上記暗渠型ブロック形成用のものである。Further, in the undercut type block of the present invention, the block main body 2 having the hole 3 having the specific cross-sectional shape is at least divided into two in the vertical or horizontal direction in the cross section, and the divided blocks 4 are joined and integrated to form the block main body 2. The formed configuration can be adopted.
Further, the divided block of the present invention is for forming the culvert type block in which the block main body 2 having the hole 3 having the specific cross-sectional shape is divided into two substantially in half in the vertical or horizontal direction in the cross section. .

又、本発明の移動用台車は、上記暗渠型ブロック１の孔３内の移動用台車であって、人を載せうる基台８の幅方向両側下部に設けた各車輪９が、上記孔３断面の底辺部３ａ両端部付近に位置されて該所に略沿って移動すべくなされたものである。 Further, the moving carriage of the present invention is a moving carriage in the hole 3 of the culvert type block 1, and each wheel 9 provided at the lower part on both sides in the width direction of the base 8 on which a person can be placed is connected to the hole 3. It is located in the vicinity of both ends of the bottom side 3a of the cross section so as to move substantially along the place.

又、本発明の移動用台車は、上記台車において、基台８の底部が上記孔３の底部と略平行になされ、孔３内底部を清掃すべく基台８に掃除具１２が付設され、該掃除具１２は少なくとも基台８から突出してその下端部１３ｂが上記孔３断面の底辺部３ａに略沿うべくなされた収集用掻き板部１３を有する構成を採用することができる。 Further, in the moving carriage of the present invention, in the carriage, the bottom of the base 8 is substantially parallel to the bottom of the hole 3, and a cleaning tool 12 is attached to the base 8 to clean the bottom of the hole 3. The cleaning tool 12 may employ a configuration having a collecting scraping plate portion 13 that protrudes from at least the base 8 and whose lower end portion 13b is substantially along the bottom side portion 3a of the hole 3 cross section.

本発明の暗渠型ブロックは、ブロック本体の上面が内部の孔上部との間に所定厚みを有し、孔の断面形状が、略左右対称で略三角形の各角部が夫々外方に向け凸湾曲又は凸屈曲状をなすべく内方に収縮され、頂部が略山形状に形成されるとともに、上記略三角形の各辺部が夫々外方に向け凸湾曲又は凸屈曲状をなすべく外方に膨出されて両側辺部及び底辺部が形成された異形状をなすために、例えば水路用ブロックとして道路等の適宜箇所に埋設施工されてその上方から輪荷重等外力が負荷されても十分な強度を有し、安定した構造の路面用水路施設の形成ができるとともに、孔断面の底辺部が外方（下方）に向け凸湾曲又は凸屈曲状をなすべく外方（下方）に膨出されて孔内の流水性がよく、孔内に汚泥等の堆積物やごみ等が溜まりにくい。
又、孔の断面形状が上記特定形状をなし、孔内部に少なくとも人が四つん這い姿勢で進入可能となされているために、水路として使用する場合、施工後、孔内部にたとえ汚泥等の堆積物やごみ等が溜まって水はけが悪くなった場合や、比較的大きな異物が引っ掛かったりした異常時、或いは孔内の定期点検等の必要時に、堆積物、ごみや異物等の除去、孔内点検等をすべく孔内に人が容易に進入して作業でき、孔内部の下部空間が左右方向に広がっていることもあって堆積物、ごみや異物等の除去、或いは点検等の作業がしやすく、又、孔断面の底辺部が下方に向け凸湾曲又は凸屈曲状をなすことと相俟って、孔内に進入した人が上記底辺部に無理なく膝と手をついて四つん這い又は前かがみの姿勢を確保できて作業が容易に行え、又、孔の上下高さ及び断面形状を本来の水路機能のみに必要な高さ及び形状として不必要に大きくすることなく、延いてはブロック自体を無駄に嵩張らせずに全体を経済的で有効な断面形状を有するブロックとすることができる。
更に、本発明の暗渠型ブロックは上記水路用ブロックとして使用する他、各種場所で非常、緊急時等の避難用トンネル通路、往来が必要な場所のトンネル通路等の各種通路用ブロックとしても好適に使用できる。The undercut type block of the present invention has a predetermined thickness between the upper surface of the block main body and the upper part of the inner hole, the cross-sectional shape of the hole is substantially bilaterally symmetric, and each corner of the substantially triangular shape protrudes outward. It is shrunk inward to form a curved or convex bent shape, the top part is formed in a substantially mountain shape, and each side part of the above-mentioned triangular shape is outward to form a convex curved or convex bent shape, respectively. In order to form an irregular shape in which both sides and bottom sides are formed by bulging, it is sufficient even if an external force such as a wheel load is applied from above by being embedded in an appropriate location such as a road as a waterway block. It is possible to form a road channel facility with strength and stable structure, and the bottom of the hole cross section is bulged outward (downward) to form a convex curve or convex bent outward (downward). The water flow in the hole is good, and sediments such as sludge and dust are difficult to collect in the hole.
Moreover, since the cross-sectional shape of the hole is the above-mentioned specific shape and at least a person can enter the hole in a four-sided posture, when using it as a water channel, after construction, deposits such as sludge, Remove dirt, debris, foreign matter, etc., check inside the hole, etc., when dust accumulates and water drains, or when a relatively large foreign object gets caught, or when periodic inspection is required. It is easy for people to enter the hole and work, and the lower space inside the hole expands in the left-right direction, so it is easy to remove deposits, dust, foreign substances, etc. In addition, coupled with the fact that the bottom of the hole cross-section is convexly curved or convexly bent downward, a person who has entered the hole has his knees and hands comfortably placed on the bottom and has a four-sided or slanted posture. Can be secured and work can be done easily. An economical and effective cross-sectional shape as a whole without unnecessarily increasing the lower height and cross-sectional shape as the height and shape necessary only for the original water channel function and without unnecessarily bulky the block itself. It can be a block having.
Furthermore, the culvert type block of the present invention is suitably used as a block for various passages such as an evacuation tunnel passage in an emergency or emergency, a tunnel passage in a place where traffic is required, in addition to being used as a block for the above waterway. Can be used.

又、本発明の暗渠型ブロックは、上記特定断面形状の孔を有するブロック本体がその断面における縦又は横方向で少なくとも二分割され、該分割ブロックが接合一体化されてブロック本体が形成されているために、成形面で上記暗渠型ブロック（ブロック本体）の如き成形技術を要する特殊で大きな形状のものを当初から一挙に成形せずにすみ、小型の成形しやすい形状の分割ブロックとして製造することで容易に対応できるとともに、運搬や取扱いに際しても小型の分割ブロックのまま容易に行え、必要に応じて施工現場等で対をなす分割ブロックを相対して接合一体化することで暗渠型ブロックが得られる。
又、本発明の分割ブロックは、上記特定断面形状の孔を有するブロック本体がその断面における縦又は横方向で略半割状に二分割されてなるために、上記の如く特殊で大きな形状の暗渠型ブロックに比し成形面で小型で製造しやすく、運搬や取扱いに際しても容易に行えるとともに、必要に応じて対をなすものを相対して接合一体化することで暗渠型ブロックが容易に得られる。Further, in the underdrain block of the present invention, the block main body having the hole having the specific cross-sectional shape is divided into at least two in the vertical or horizontal direction in the cross section, and the divided blocks are joined and integrated to form the block main body. Therefore, it is not necessary to mold a special large shape like the above culvert type block (block body) on the molding surface from the beginning, and it is manufactured as a small divided block that is easy to mold. In addition, it can be easily handled as a small divided block for transportation and handling, and a culvert type block can be obtained by connecting and integrating the paired divided blocks at the construction site as necessary. It is done.
Further, the divided block of the present invention has a special large-shaped underdrain as described above because the block main body having the hole with the specific cross-sectional shape is divided into two substantially in half in the vertical or horizontal direction in the cross-section. Compared to a mold block, the molding surface is small and easy to manufacture. It can be easily transported and handled, and a culvert-shaped block can be easily obtained by connecting and mating a pair as necessary. .

又、本発明の移動用台車は、人を載せうる基台の幅方向両側下部に設けた各車輪が、上記孔断面の底辺部両端部付近に位置されて該所に略沿って移動すべくなされているために、上記人による孔内の清掃や点検時、或いは通行時等の必要時に、基台上に人を載せて孔内を容易に移動可能とし、その際、たとえ孔内底部に堆積物やごみ等があっても基台上の人に汚れを付着させることがなく、車輪が堆積物やごみ等の少ない孔断面の底辺部両端部付近に位置してスムーズに移動できるとともに、台車上で上記孔内の清掃や点検作業が容易に行なえる。 Further, in the moving carriage of the present invention, each wheel provided at the lower part on both sides in the width direction of the base on which a person can be placed is positioned near both ends of the bottom part of the hole cross section and should move along the place. Therefore, when cleaning or checking the inside of the hole by the above person or when passing, etc., it is possible to easily move the inside of the hole by placing a person on the base. Even if there is sediment or dirt, it will not cause dirt on people on the base, and the wheel can be moved smoothly near both ends of the bottom of the hole cross section with little sediment and dirt, etc. The hole can be easily cleaned and inspected on the carriage.

又、本発明の移動用台車は、基台の底部が上記孔の底部と略平行になされ、孔内底部を清掃すべく基台に掃除具が付設され、該掃除具は少なくとも基台から突出してその下端部が上記孔断面の底辺部に略沿うべくなされた収集用掻き板部を有するために、上記と同様にして暗渠型ブロックの孔内の移動に使用される際、台車の移動が安定しその移動に伴って孔内底部の堆積物やごみ等が掃除具の掻き板部により掻き採られて収集され、例えば収集された堆積物やごみ等を吸引したり収納部内に導くことで孔内の清掃を容易に行なえる。又、孔内の清掃以外の点検や通行時等にも同様にして孔内の清掃が同時に行なえる。 Further, the moving carriage of the present invention is such that the bottom of the base is substantially parallel to the bottom of the hole, and a cleaning tool is attached to the base to clean the bottom of the hole, and the cleaning tool protrudes from at least the base. Since the lower end portion of the lever has a scraping plate portion for collection substantially along the bottom portion of the hole cross section, the movement of the carriage is used when used for movement in the hole of the culvert block in the same manner as described above. As it moves stably, the deposits and debris at the bottom of the hole are collected by being scraped off by the scraper of the cleaning tool.For example, the collected deposits and debris are sucked or guided into the storage unit. The inside of the hole can be easily cleaned. In addition, the hole can be cleaned at the same time in the inspection and passage other than the cleaning in the hole.

本発明の暗渠型ブロックの一実施の形態を示し、（イ）は正面図、（ロ）は平面図、（ハ）は右側面図、（ニ）は（イ）のＡ−Ａ断面図。 1 shows an embodiment of a culvert block according to the present invention, in which (A) is a front view, (B) is a plan view, (C) is a right side view, and (D) is a cross-sectional view taken along line AA of (A). 施工状態とともに示す図１（イ）のＢ−Ｂ拡大断面図。 BB expanded sectional view of FIG. 1 (a) shown with a construction state. （イ）及び（ロ）は夫々施工状態とともに示す本発明の暗渠型ブロックの他実施の形態を示す一部断面図。 (A) and (B) are partial sectional views showing other embodiments of the underdrain block of the present invention shown together with the construction state. （イ）〜（ヲ）は夫々本発明の暗渠型ブロックの孔の断面形状の他の例を示す説明図。 (A)-(wo) is explanatory drawing which shows the other example of the cross-sectional shape of the hole of the culvert type block of this invention, respectively. （イ）〜（ハ）は夫々本発明の暗渠型ブロックの外郭形状の他の例を示す断面図。 (A)-(C) is sectional drawing which shows the other example of the outline shape of the underdrain type block of this invention, respectively. （イ）は本発明の暗渠型ブロックの他実施の形態を示す一部正面図、（ロ）は左側面図、（ハ）は（イ）のＣ−Ｃ断面図、（ニ）は本発明の暗渠型ブロックの更に他実施の形態を示す断面図。 (A) is a partial front view showing another embodiment of a culvert block of the present invention, (b) is a left side view, (c) is a cross-sectional view taken along the line CC of (b), and (d) is the present invention. Sectional drawing which shows other embodiment of other culvert type | mold blocks. （イ）は本発明の暗渠型ブロックの他実施の形態を示す断面図、（ロ）は（イ）の暗渠型ブロック形成用の対をなす分割ブロックを示す断面図。 (A) is sectional drawing which shows other embodiment of the culvert type | mold block of this invention, (b) is sectional drawing which shows the division | segmentation block which makes the culvert type | mold block formation of (a). （イ）は本発明の暗渠型ブロックの他実施の形態を示す断面図、（ロ）は（イ）の暗渠型ブロック形成用の対をなす分割ブロックを示す断面図。 (A) is sectional drawing which shows other embodiment of the culvert type | mold block of this invention, (b) is sectional drawing which shows the division | segmentation block which makes the culvert type | mold block formation of (a). （イ）〜（ハ）は夫々本発明の暗渠型ブロックの他実施の形態を示す断面図。 (A)-(C) is sectional drawing which shows other embodiment of the culvert type block of this invention, respectively. 本発明の移動用台車の一実施の形態を示し、（イ）は暗渠型ブロック内における平面図、（ロ）は（イ）のＤ−Ｄ断面図、（ハ）は（イ）のＥ−Ｅ拡大断面図。 1 shows an embodiment of a moving carriage according to the present invention, in which (a) is a plan view inside a culvert block, (b) is a sectional view taken along DD of (a), and (c) is E- of (a). E expanded sectional view. 本発明の移動用台車の他実施の形態を示し、（イ）は暗渠型ブロック内における平面図、（ロ）は（イ）のＦ−Ｆ断面図、（ハ）は（イ）のＧ−Ｇ拡大断面図、（ニ）は要部水平断面図、（ホ）は左側面図。 The other embodiment of the moving trolley | bogie of this invention is shown, (A) is a top view in a culvert type | mold block, (B) is FF sectional drawing of (A), (C) is G- of (I). G enlarged sectional view, (D) is a horizontal sectional view of the main part, (E) is a left side view. 本発明の移動用台車の他実施の形態を示し、（イ）は暗渠型ブロック内における平面図、（ロ）は（イ）のＨ−Ｈ断面図、（ハ）は（イ）のＩ−Ｉ拡大断面図。 The other embodiment of the moving trolley | bogie of this invention is shown, (A) is a top view in a culvert type | mold block, (B) is HH sectional drawing of (A), (C) is I- of (I). I expanded sectional view. 本発明の移動用台車の他実施の形態を示し、他の暗渠型ブロック内における断面図。 Sectional drawing in other culvert type | mold blocks which shows other embodiment of the moving trolley | bogie of this invention.

以下、図面を参照しながら本発明の実施の形態について説明する。
図１は本発明の暗渠型ブロックの一実施の形態を示し、１は本実施形態のブロックであって、図１（イ）〜（ニ）に示す如く、そのブロック本体２の内部に長手方向に沿う孔３を有するコンクリート製等の横長筒状体となされ、孔３の断面形状が略左右対称で、三角形（正三角形に近い二等辺三角形）Ｔを基本にしてこれを変形させた異形状をなし、ブロック本体２の断面外郭形状が略変形台形状で、上記孔３の断面形状に伴いその断面最大幅付近から上側が上窄まり状、下側が若干下窄まり状に形成されることで左右両側面が外方に向け膨出状となされ、両側面が孔３内面との間に所定厚みを有するとともに、ブロック本体２の上面２ａが略水平状となされて孔３の上部との間に所定厚みを有して形成されている。
基本的にブロック本体２の上面２ａに負荷される輪荷重等外力による曲げやせん断力に対する最低限の強度を保持する必要性や、例えば水路用ブロックとして使用する際の孔３内の流水の流量等の水路機能の面から、ブロック本体２及び孔３の断面形状が設計されるとともに、ブロック本体２自体を無駄に嵩張らせないようになされている。
上記孔３の断面形状は、図２に示す如く、略左右対称で三角形Ｔの各角部（角及びその周辺部）が夫々外方に向け凸湾曲状（凸屈曲状でも可）をなすべく内方に収縮されることで丸みが付され、頂部３ｃが略山形状に形成されるとともに、上記三角形Ｔの直線状の各辺部（詳しくは上記角部を除く辺部）が夫々外方に向け凸湾曲又は凸屈曲状をなすべく外方に膨出されることで両側辺部３ｂ及び底辺部３ａが形成された異形状をなす。
具体的には、上記断面形状の底辺部３ａが略中央部で下方に向け略凸湾曲状をなして左右方向に夫々緩傾斜状に延び（詳しくは曲率の異なる円弧状の曲線が連続されその両側に緩傾斜状の直線が連続されて略凸湾曲状をなして左右方向に延び）、該底辺部３ａに相対し、頂部３ｃがその左右両側が所定の斜降状をなすべく上方に向け凸湾曲され（詳しくは曲率の異なる円弧状の曲線を組み合わせて連続させ、一様な円弧状とは異なる凸湾曲状をなす）、頂部３ｃの左右両側の側辺部３ｂが斜め上方に向け凸湾曲状をなし、頂部３ｃと両側辺部３ｂ、両側辺部３ｂと底辺部３ａとが夫々丸みを帯びて滑らかに連続されて上記三角形Ｔの変形状をなす如く孔３の断面形状が形成されている。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an embodiment of a culvert type block according to the present invention. Reference numeral 1 denotes a block according to the present embodiment. As shown in FIGS. This is a horizontally long tubular body made of concrete or the like having a hole 3 along the hole, and the cross-sectional shape of the hole 3 is substantially bilaterally symmetric and is deformed based on a triangle (an isosceles triangle close to an equilateral triangle) T The cross-sectional outer shape of the block main body 2 is a substantially deformed trapezoidal shape, and the upper side of the hole 3 is formed to be constricted on the upper side from the vicinity of the maximum width of the cross section, and the lower side is slightly constricted. The left and right side surfaces bulge outward, the both side surfaces have a predetermined thickness between the inner surface of the hole 3, and the upper surface 2 a of the block body 2 is substantially horizontal to It has a predetermined thickness between them.
Basically, it is necessary to maintain a minimum strength against bending and shearing forces due to external forces such as a wheel load applied to the upper surface 2a of the block body 2, and for example, a flow rate of flowing water in the hole 3 when used as a block for a water channel The cross-sectional shapes of the block main body 2 and the hole 3 are designed from the viewpoint of the water channel function such as the above, and the block main body 2 itself is not bulky.
As shown in FIG. 2, the cross-sectional shape of the hole 3 is substantially symmetrical, and each corner of the triangle T (corner and its peripheral part) should be convexly curved outward (or convexly bent). By being shrunk inwardly, it is rounded, the top 3c is formed in a substantially mountain shape, and the straight sides of the triangle T (specifically, the sides excluding the corners) are outward. By forming a convex curve or convex bend toward the outside, the outer side bulges into an irregular shape in which both side parts 3b and bottom part 3a are formed.
Specifically, the bottom portion 3a of the cross-sectional shape has a substantially convex curve downward at a substantially central portion and extends in a slanting manner in the left and right directions (specifically, arc-shaped curves having different curvatures are continuously connected) A straight line with a gentle slope is continuously formed on both sides to form a substantially convex curve and extend in the left-right direction), and is opposed to the base 3a, and the top 3c is directed upward so that the left and right sides form a predetermined inclined shape. Convex-curved (specifically, arc-shaped curves having different curvatures are combined and continuous to form a convex-curved shape different from the uniform arc-shaped), and the side portions 3b on both the left and right sides of the top portion 3c protrude obliquely upward The cross-sectional shape of the hole 3 is formed so as to form a curved shape, and the top 3c and both side portions 3b, the both side portions 3b and the bottom side 3a are rounded and smoothly continuous to form a deformed shape of the triangle T. ing.

又、図２に示す如く、孔３内部に少なくとも人（例えば普通の大人）Ｐが四つん這い姿勢で進入可能な大きさ（例えば孔３の上下高さが少なくとも略７０ｃｍ以上）で、水路機能を確保すべく孔３内の流水の流量も所望する必要流量を満たす大きさに形成され、図２の場合には頂部３ｃにおける空間部、換言すれば上記人Ｐの頭部付近の空間部が左右方向に所定広さを確保すべくなされている。
即ち、孔３の底辺部３ａがその略中央部で下方に向け凸湾曲状（凸屈曲状でもよい）をなして左右方向に夫々緩傾斜状に延びることで、水路としての孔３内の流水性をよくして孔３内に汚泥等の堆積物やごみ等が溜まりにくくなされるとともに、孔３内に進入した人Ｐが上記底辺部３ａに無理なく膝と手をついて四つん這い又は前かがみの姿勢を確保できて移動、清掃や点検等の各種作業が容易に行え、且つ頂部３ｃにおける空間部が左右方向に所定広さを有することでヘルメットを被っていても人Ｐが余裕をもって進入可能なようになされている。
又、孔３の断面形状が上記の如く三角形Ｔを基本に変形させた異形状となされることで、施工後、孔３内に溜まった汚泥等の堆積物やごみ、孔３内に引っ掛かった異物等の除去、或いは孔３内の点検等必要時に孔３内に人Ｐが進入して身動きや各種作業をするのに際し、孔３の上下高さ及び断面形状を無駄に大きくすることなく有効な大きさ及び形状に設計されている。
更に、孔３の断面形状が上記特定形状となされることで、孔３内部の下部空間を左右方向に広くして例えば上記堆積物や異物等の除去作業スペース或いは点検作業スペースを確保でき、両側辺部３ｂと底辺部３ａが湾曲状をなして滑らかに連続されていることと相俟って堆積物や異物等の除去、孔内点検作業が容易に行えるようになされている。In addition, as shown in FIG. 2, at least a person (for example, an ordinary adult) P can enter the hole 3 in a four-sided posture (for example, the vertical height of the hole 3 is at least approximately 70 cm or more) to ensure a water channel function. Therefore, the flow rate of the flowing water in the hole 3 is formed to a size that satisfies a desired required flow rate. In the case of FIG. 2, the space portion at the top 3c, in other words, the space portion near the head of the person P is in the left-right direction. It is made to ensure a predetermined area.
That is, the bottom 3a of the hole 3 has a convex curve shape (or may be a convex curve shape) downward at its substantially central portion and extends in a slanting manner in the left-right direction, thereby flowing water in the hole 3 as a water channel. This improves the performance and makes it difficult for sediment or dirt such as sludge to collect in the hole 3, and the person P who has entered the hole 3 puts his knees and hands on the bottom 3a with ease and leans forward. It is easy to perform various operations such as movement, cleaning and inspection, and the space portion at the top portion 3c has a predetermined width in the left-right direction so that the person P can enter with a margin even if he is wearing a helmet. Has been made.
In addition, since the cross-sectional shape of the hole 3 is changed to an irregular shape based on the triangle T as described above, sludge accumulated in the hole 3 and dirt accumulated in the hole 3 after the construction, and the hole 3 is caught in the hole 3. Effective when people P move into the hole 3 to perform movements and various operations when removing foreign objects, etc., and checking the inside of the hole 3, etc., without increasing the vertical height and cross-sectional shape of the hole 3 unnecessarily. It is designed in various sizes and shapes.
Furthermore, the cross-sectional shape of the hole 3 is the above-mentioned specific shape, so that the lower space inside the hole 3 can be widened in the left-right direction to secure, for example, a removal work space or inspection work space for the deposits and foreign matters. Combined with the fact that the side 3b and the bottom 3a are curved and smoothly continuous, it is possible to easily remove deposits, foreign substances, etc., and perform inspection in the hole.

又、本実施形態のブロック１は、施工時にその長手方向で他のブロック１とボルト連結して接合するために、例えば図１（イ）、（ロ）及び（ニ）に示す如く、ブロック本体２の長手方向両端面付近の両側壁上下部に凹部２ｂ（ボルトやナットの挿入用空間）が夫々設けられるとともに、上記両端面上下部に長手方向に沿い凹部２ｂ内に貫通するボルト孔２ｃが夫々設けられている。尚、図示しないが少なくとも水路用ブロックとして使用する際のボルト連結時には隣接するブロック１間に止水パッキンが挟着されて接合される。
又、上記ブロック１はその優れた強度面（ブロック本体２の上面２ａが孔３上部との間に所定厚みを有し、孔３の断面形状が上記の如き三角形Ｔを基本に変形させた異形状で、頂部３ｃが上方に向け凸湾曲する略山形状をなし、その左右両側が所定の斜降状の両側辺部３ｂに連続することに起因）から例えば輪荷重等の負荷が大きい道路等に好適に埋設使用可能で、その際、図２に示す如く路面ｒ下の浅い位置に埋設施工されるものであって、ブロック本体２の上面２ａはその幅方向全体にわたり略水平な平滑面となされているが、例えば図３（イ）に示す如くブロック本体２の上面２ａの幅方向両端部に長手方向に沿って切欠段部２ｄが設けられたり、図３（ロ）に示す如く上記切欠段部２ｄが更に幅方向に複数連設されて階段状に設けられてもよい。尚、上記切欠段部２ｄの形状は上記以外の他の適宜形状でもよい。In addition, the block 1 of the present embodiment is connected to another block 1 in the longitudinal direction at the time of construction by bolting and joining, for example, as shown in FIGS. 1 (A), (B) and (D). Recesses 2b (spaces for inserting bolts and nuts) are provided in the upper and lower portions of both side walls in the vicinity of both end surfaces in the longitudinal direction of 2, respectively, and bolt holes 2c penetrating into the recess 2b along the longitudinal direction in the upper and lower portions of both end surfaces. Each is provided. Although not shown, at least when the bolt is used when used as a waterway block, a water stop packing is sandwiched and joined between adjacent blocks 1.
The block 1 has an excellent strength surface (the upper surface 2a of the block main body 2 has a predetermined thickness between the upper surface of the hole 3 and the cross-sectional shape of the hole 3 is deformed based on the triangle T as described above. For example, a road having a large load such as a wheel load, because the top 3c has a substantially mountain shape in which the top 3c is convexly curved upward and the left and right sides thereof are connected to the predetermined sloping sides 3b. In this case, as shown in FIG. 2, the construction is carried out in a shallow position below the road surface r, and the upper surface 2a of the block body 2 has a smooth surface that is substantially horizontal over the entire width direction. However, for example, as shown in FIG. 3 (a), notch step portions 2d are provided along the longitudinal direction at both end portions in the width direction of the upper surface 2a of the block body 2, or the notch as shown in FIG. 3 (b). A plurality of step portions 2d are further provided in the width direction and provided in a staircase shape. It may be. In addition, the shape of the notch step portion 2d may be other appropriate shapes other than those described above.

尚又、本発明の暗渠型ブロックは必ずしも上記実施形態のものに限定されることなく、本発明の意図する範囲内で種々の設計変更がなされてもよい。
例えば孔３の断面形状は、上記と略同様にして略三角形を基本にその各角部が内方に向け収縮されるとともに、各辺部が外方に向け膨出されることにより、上記以外に図４（イ）〜（ヲ）に示す如く種々の形状に形成されてもよい。
詳しくは、図４（イ）〜（ハ）及び（ホ）の場合は正方形に近い略二等辺三角形Ｔを基本に変形されて上記断面形状全体が比較的上記実施形態に近い形状をなす異形状となされている。
まず図４（イ）の場合は、上記実施形態と全体的に略同様でその底辺部３ａが上記と異なり左右方向に延びる緩やかなＶ形状をなして下方に向け凸屈曲状となされ、図４（ロ）の場合は、上記（イ）と略同様でその両側辺部３ｂの下端部が上記と異なり略垂直な直線状に延びて底辺部３ａと夫々屈曲状に連続され、図４（ハ）の場合は、その両側辺部３ｂの下端部が上記と異なり急傾斜の略直線状に延びて底辺部３ａと夫々屈曲状に連続され、図４（ホ）の場合は、その底辺部３ａが上記と異なり略水平状中央部から左右方向に緩傾斜状に延びて下方に向け凸屈曲状となされ、両側辺部３ｂが上記と異なり多数箇所が曲折された屈曲状直線で形成されることで外方に向け凸屈曲状となされ、その下端部が急傾斜の略直線状に延びて底辺部３ａと夫々屈曲状に連続されている。
又、図４（ニ）の場合は、断面形状全体が上記と異なり、底辺に対して高さが高い縦長の略二等辺三角形Ｔを基本に変形された縦長状となされ、底辺部３ａが略水平状中央部から左右方向に緩傾斜状に延びて下方に向け凸屈曲状となされ、頂部３ｃがその左右両側が所定の斜降状をなすべく上方に向け凸湾曲され、頂部３ｃの左右両側の側辺部３ｂが斜め上方に向け凸湾曲状をなし、頂部３ｃと両側辺部３ｂ、両側辺部３ｂと底辺部３ａとが夫々丸みを帯びて滑らかに連続されている。The underdrain block of the present invention is not necessarily limited to that of the above embodiment, and various design changes may be made within the intended scope of the present invention.
For example, the cross-sectional shape of the hole 3 is substantially the same as described above, and the corners of the hole 3 are contracted inwardly based on a substantially triangular shape, and the sides are bulged outwardly. It may be formed in various shapes as shown in FIGS.
Specifically, in the case of FIGS. 4 (A) to 4 (C) and (E), a deformed shape that is deformed based on a substantially isosceles triangle T that is close to a square and whose overall cross-sectional shape is relatively close to that of the above embodiment. It has been.
First, in the case of FIG. 4 (a), the base portion 3a is generally the same as that of the above-described embodiment, and unlike the above, the base 3a has a gentle V shape extending in the left-right direction and is convexly bent downward. In the case of (b), substantially the same as (a) above, the lower ends of both side portions 3b extend in a substantially vertical straight line unlike the above, and are continuously bent with the bottom side 3a, respectively, as shown in FIG. In the case of FIG. 4 (e), the lower end portions of both side portions 3b extend in a substantially straight line having a steep slope and are bent continuously with the bottom portion 3a. In the case of FIG. Unlike the above, however, it extends from the substantially horizontal central portion in the left-right direction so as to be gently bent downward, and is convexly bent downward, and the side portions 3b are formed of bent straight lines that are bent at a number of places unlike the above. The bottom part 3a has a convex bent shape toward the outside, and its lower end extends in a substantially straight line with a steep slope. It is continuous to each bent-shaped.
In the case of FIG. 4 (d), the entire cross-sectional shape is different from the above, and is a vertically long shape deformed on the basis of a vertically long isosceles triangle T having a high height with respect to the bottom, and the bottom 3a is substantially the same. From the horizontal central portion, it extends in a slanting manner in the left-right direction and is convexly bent downward. The top 3c is convexly curved upward so that the left and right sides form a predetermined slope, and the left and right sides of the top 3c. The side portion 3b is convexly curved obliquely upward, and the top portion 3c and the side portions 3b, and the side portions 3b and the bottom portion 3a are rounded and smoothly continuous.

又、図４（ヘ）の場合は、上記断面形状全体が略正三角形Ｔの変形状で上記実施形態と異なり、比較的三角形に近い形状をなすべく上記と略同様にして三角形Ｔを基本に変形され、頂部３ｃが上向き凸湾曲状の略山形状となされ、その底辺部３ａが上記と略同様で下方に向け凸湾曲状、両側辺部３ｂが夫々外方に向け凸湾曲状をなし、両側辺部３ｂと底辺部３ａとが夫々湾曲状をなして連続されている。
図４（ト）〜（ル）の場合は、断面形状全体が略正三角形Ｔを基本に変形され、上記図４（ヘ）の如き断面形状全体が夫々略山形状の上部を有する略三角異形状を更に変形させた形状となされ、図４（ト）の場合は、上記（ヘ）と略同様でその底辺部３ａが左右方向に延びる緩やかなＶ形状をなして下方に向け凸屈曲状となされ、図４（チ）の場合は、上記（ヘ）と略同様で両側辺部３ｂの下端部が略垂直な直線状に延びて両側辺部３ｂと底辺部３ａが夫々屈曲状をなして連続され、頂部３ｃが上向き凸屈曲状に形成されている。
図４（リ）の場合は、底辺部３ａがその略水平状中央部から左右方向に緩傾斜状に延びて下方に向け凸屈曲状となされ、凸湾曲状の頂部３ｃの左右両側辺部３ｂが夫々その略中央部で外方に向け凸屈曲した斜め直線状となされ、両側辺部３ｂと底辺部３ａが夫々湾曲状をなして滑らかに連続されて形成されている。
図４（ヌ）の場合は、上記（リ）の変形で、底辺部３ａが左右方向に延びる緩やかなＶ形状をなして下方に向け凸屈曲状となされ、上向き凸屈曲状の頂部３ｃの左右両側辺部３ｂが夫々その略中央部で外方に向け凸屈曲した斜め直線状で下端部が略垂直な直線状に延びて両側辺部３ｂと底辺部３ａが夫々屈曲状をなして連続されて形成されている。In the case of FIG. 4 (f), the entire cross-sectional shape is a deformed shape of a substantially equilateral triangle T, and unlike the above embodiment, the triangle T is basically formed in the same manner as described above so as to form a shape that is relatively close to a triangle. It is deformed, and the top part 3c is formed into a substantially mountain shape with an upward convex curve shape, its bottom part 3a is substantially the same as described above, downwardly convex, both side parts 3b are outwardly convexly curved, Both side portions 3b and the bottom portion 3a are continuous in a curved shape.
4 (G) to (L), the entire cross-sectional shape is deformed based on a substantially equilateral triangle T, and the entire cross-sectional shape as shown in FIG. In the case of FIG. 4G, the bottom 3a has a gentle V shape extending in the left-right direction and is downwardly convex and bent. In the case of FIG. 4 (h), substantially the same as (f) above, the lower end portions of both side portions 3b extend in a substantially vertical straight line, and both side portions 3b and bottom portion 3a are bent. It is continuous and the top part 3c is formed in the upward convex bending shape.
In the case of FIG. 4 (i), the bottom side 3a extends from the substantially horizontal central portion in a left-right direction so as to be gently inclined and is bent downward, and the left and right side portions 3b of the convex curved top 3c. Each of the side portions 3b and the bottom side portion 3a is formed in a curved line and smoothly and continuously.
In the case of FIG. 4 (n), the base 3a has a gentle V shape extending in the left-right direction and is bent downward in the left-right direction by the deformation of (i) above. Both side portions 3b are slanted linearly curved outwardly at their substantially central portions, and the lower end portions are extended in a substantially vertical straight shape, and both side portions 3b and bottom side portions 3a are continuously bent. Is formed.

図４（ル）の場合は、孔３の断面形状全体が略山形状の上部を有して隅角部が切欠かれた隅切三角形の変形状となされ、底辺部３ａがその略水平状中央部から左右方向に緩傾斜状に延びて下方に向け凸屈曲状となされ、上向き凸屈曲状の頂部３ｃの左右両側辺部３ｂが夫々斜降状でその下端部が略垂直な直線状に延び、両側辺部３ｂと底辺部３ａが夫々屈曲状をなして連続されて形成されている。
又、図４（ヲ）の場合は、断面形状全体が上記と異なり、底辺に対して高さが低い横長の略二等辺三角形Ｔを基本に変形されたやや横長状となされ、孔３の断面形状全体が略山形状の上部を有して隅角部が丸い隅丸三角形の変形状となされ、底辺部３ａが下方に向け凸湾曲状で、上向き凸湾曲状の頂部３ｃの左右両側辺部３ｂが夫々斜め外方に向け凸湾曲状となされ、両側辺部３ｂと底辺部３ａが夫々湾曲状をなして滑らかに連続されて形成されている。
要は、孔３の断面形状は、略左右対称で略三角形（各種二等辺三角形、正三角形、その他略三角形に近い形状）の各角部が夫々外方に向け凸湾曲又は凸屈曲状をなすべく内方に収縮され、頂部３ｃが略山形状に形成されるとともに、上記略三角形の各辺部が夫々外方に向け凸湾曲又は凸屈曲状をなすべく外方に膨出されて両側辺部３ｂ及び底辺部３ａが形成された異形状をなし、両側辺部３ｂと底辺部３ａが湾曲又は屈曲状に連続し、下部に左右方向に広がる空間を有するように形成されればよく、上記以外の種々の適宜形状となされてもよい。
又、孔３の断面形状は内部に少なくとも人が四つん這い姿勢で進入可能で、水路機能も保持すべく孔３内の流水の流量を考慮した大きさで、その高さと左右幅（最大幅）寸法は略等しいか、左右幅が高さに比しやや大きくなされるのが好ましいが、高さと左右幅寸法の比率を特に限定するものではない。In the case of FIG. 4 (l), the entire cross-sectional shape of the hole 3 is a deformed shape of a truncated triangle having a substantially mountain-shaped upper portion and a corner is notched, and the base 3a is a substantially horizontal center. The left and right side portions 3b of the top portion 3c of the upward convex bent shape are inclined downward, and the lower end portions thereof extend in a substantially vertical straight line. The both side portions 3b and the bottom side portion 3a are continuously formed in a bent shape.
In the case of FIG. 4 (o), the entire cross-sectional shape is different from the above, and the cross-sectional shape of the hole 3 is changed to a slightly oblong shape based on a substantially isosceles triangle T having a low height with respect to the bottom. The entire shape has a substantially mountain-shaped upper part, and the corners are rounded and rounded, and the bottom side 3a is convexly curved downward, and the left and right sides of the top convexly curved top 3c. 3b is formed in a convex curve shape toward the diagonally outward direction, and both side portions 3b and the bottom side portion 3a are formed in a curved shape so as to be smoothly continuous.
In short, the cross-sectional shape of the hole 3 is substantially bilaterally symmetric, and each corner of a substantially triangular shape (various isosceles triangles, regular triangles, and other shapes close to a substantially triangular shape) has a convex curve or a convex bent shape toward the outside. The top 3c is formed in a substantially mountain shape, and each side of the substantially triangular shape bulges outward to form a convex curve or a convex bend toward the outside. The part 3b and the bottom part 3a are formed in a different shape, and the side part 3b and the bottom part 3a may be formed in a curved or bent shape and have a space extending in the left-right direction at the bottom. Various other shapes other than those may be used.
In addition, the cross-sectional shape of the hole 3 is such that at least a person can enter the inside in a four-sided posture, and is a size that takes into account the flow rate of running water in the hole 3 in order to maintain the water channel function, and its height and width (maximum width) dimensions. Are preferably substantially the same or have a lateral width slightly larger than the height, but the ratio of the height to the lateral width dimension is not particularly limited.

ブロック本体２の断面外郭形状についても、少なくとも上面２ａに負荷される輪荷重等外力に対する十分な強度を有するとともに、孔３が上記断面形状となされるのに伴って無駄に嵩張ることなく形成されればよく、上記以外の適宜形状となされてもよい。
例えば図５（イ）に示す如く、上記と全体的に略同様でその上面２ａが緩やかなＶ形状をなすべく幅方向両端部から略中央部に向け斜降状の傾斜面となされたり、図５（ロ）に示す如く、略変形台形状で、長方形の左右上半部が斜めに切欠かれた如き上窄まり状をなして左右上隅部に丸みが付されたり、図５（ハ）に示す如く、全体が孔３の略三角異形状の断面形状に近似した形状で、その断面最大幅付近から上側が孔３の内壁に略沿う上窄まり状、下側が若干下窄まり状に形成され、上面２ａが狭幅の略水平状となされる等、その他上記条件を満足する種々の適宜形状となされてもよい。
又、ブロック本体２の外面と孔３の内面との間の厚みが上記図５のものに比し薄い場合（例えばコンクリート以外の合成樹脂や金属等の各種剛性材料から作製される場合等）は、例えば図６（イ）〜（ハ）に示す如く、ブロック本体２の外周及び長さ方向の両方向に夫々リブからなる補強材２ｅが適宜間隔で複数突設されるとともに、長さ方向端部に接合用のフランジ２ｆ（周方向に間隔をあけて複数のボルト孔２ｃを有する）が突設されてもよいし、図６（ニ）に示す如く、ブロック本体２の外周に略相似形の補強材２ｅが設けられるとともに、両者間を連結するリブをなす補強材２ｅがブロック本体２の外周方向に適宜間隔で複数設けられてもよく、何れにしてもブロック本体２が所定の強度を保持すべく補強されることでブロック本体２の外郭形状が形成されてもよい。The cross-sectional outline shape of the block body 2 is also formed with at least sufficient strength against external force such as a wheel load applied to the upper surface 2a, and without being unnecessarily bulky as the hole 3 has the cross-sectional shape. What is necessary is just to make it into shapes other than the above suitably.
For example, as shown in FIG. 5 (a), the upper surface 2a is substantially the same as the above, and the upper surface 2a has a slanted surface inclined downward from both ends in the width direction so as to form a gentle V shape. As shown in FIG. 5 (b), it has a substantially deformed trapezoidal shape with a rectangular shape in which the upper left and right halves of the rectangle are cut diagonally, and the upper left and right corners are rounded. As shown in the figure, the overall shape is similar to the cross-sectional shape of the substantially triangular shape of the hole 3, and the upper side from the vicinity of the maximum cross-sectional width is substantially constricted along the inner wall of the hole 3, and the lower side is slightly constricted. It may be formed in various appropriate shapes that satisfy the above-mentioned conditions, such as being formed and the upper surface 2a having a narrow and substantially horizontal shape.
Also, when the thickness between the outer surface of the block body 2 and the inner surface of the hole 3 is thinner than that of FIG. 5 (for example, when made from various rigid materials such as synthetic resin other than concrete or metal). For example, as shown in FIGS. 6 (a) to 6 (c), a plurality of reinforcing members 2e made of ribs are provided at appropriate intervals in both the outer circumference and the lengthwise direction of the block main body 2, and end portions in the lengthwise direction. A flange 2f for joining (having a plurality of bolt holes 2c spaced apart from each other in the circumferential direction) may be provided to project, or as shown in FIG. In addition to the reinforcing material 2e, a plurality of reinforcing materials 2e forming ribs connecting the two may be provided at appropriate intervals in the outer peripheral direction of the block main body 2. In any case, the block main body 2 maintains a predetermined strength. Block body by being reinforced as much as possible Contour may be formed of.

更に、上記実施形態では、他のブロック１とボルト連結して接合するために、ブロック本体２に凹部２ｂ（ボルトやナットの挿入用空間）やボルト孔２ｃが設けられているが、かかる凹部２ｂやボルト孔２ｃはブロック本体２の長手方向両端面付近の両側壁下部、両端面下部にのみ上記と同様にして設けられてもよいし、他のボルト連結構造が採用されてもよいし、又、他のブロック１との接合構造は上記ボルト連結に限定されるものではなく、例えば嵌合方式等、適宜公知の接合構造を有して長手方向に接合可能となされておればよい。
又、ブロック本体２の長手方向の長さも上記十分な強度を有する適宜長さとなされればよく、一般的に施工性や輸送性等を考慮した所定長さであればよい。
尚、上記実施形態では本発明の暗渠型ブロック１は水路用ブロックとして使用される際、道路の機能性や景観面等種々の点から路面ｒ下に浅く埋設施工されて上面２ａが路面ｒから露出しないようになされているが、これに限らず上面２ａが路面ｒに露出されたり、上面２ａを含め全体が路面ｒ下の適宜深さに埋設施工されてもよいし、その施工場所も上記の輪荷重等の負荷が大きい道路の交差部等に限らず、各種場所に埋設施工されてもよいことは勿論である。
尚又、本発明の暗渠型ブロック１は水路用ブロックとして使用される他、道路や軌道下のトンネル通路、或いは各種場所で非常、緊急時等の避難用トンネル通路、往来が必要な場所のトンネル通路等の各種通路用ブロックとして使用することも可能である。又、複数接続して長い通路を形成する場合には、人の進入に鑑みブロック１に外部に連通する換気用の管や設備が接続されるようになされていてもよい。Further, in the above embodiment, the block body 2 is provided with a recess 2b (a space for inserting bolts and nuts) and a bolt hole 2c in order to connect and join to another block 1 with bolts. The bolt holes 2c may be provided in the same manner as described above only at the lower portions of both side walls in the vicinity of both end surfaces in the longitudinal direction of the block body 2 and at the lower portions of both end surfaces, or other bolt connection structures may be employed. The joining structure with the other block 1 is not limited to the above-described bolt connection. For example, the joining structure may appropriately have a known joining structure such as a fitting method so that it can be joined in the longitudinal direction.
Further, the length of the block body 2 in the longitudinal direction may be an appropriate length having the above-described sufficient strength, and may generally be a predetermined length considering workability, transportability, and the like.
In the above embodiment, when the underdrain block 1 of the present invention is used as a waterway block, it is buried under the road surface r from various points such as road functionality and landscape surface, and the upper surface 2a extends from the road surface r. However, the upper surface 2a is exposed to the road surface r, or the entire surface including the upper surface 2a may be buried at an appropriate depth below the road surface r. Of course, it may be embedded in various places, not limited to intersections of roads where the load such as wheel load is large.
In addition, the culvert block 1 of the present invention is used as a waterway block, a tunnel passage under a road or under an orbit, or an evacuation tunnel passage in an emergency or emergency in various places, or a tunnel where traffic is required. It can also be used as a block for various passages such as passages. In addition, when a long passage is formed by connecting a plurality, a ventilation pipe or facility communicating with the outside may be connected to the block 1 in view of the approach of a person.

又、本発明の暗渠型ブロック１は必ずしも当初から一体成形されたものでなくともよく、別々に成形された少なくとも二部材が接合されて形成されてもよい。
例えば図７〜図９に示す如く、上記の如く特定断面形状の孔３を有するブロック本体２（ブロック１）がその断面における縦又は横方向で略半割状に二分割され、この対をなす略半割状の分割ブロック４が相対して接合一体化されてブロック本体２（ブロック１）が形成されてもよい。
具体的には、図７（イ）の場合は、ブロック本体２が横方向に分割されて図７（ロ）に示す如き対をなす略半割状の分割ブロック４として別々に成形され、この分割ブロック４が上下に相対して互いに接合一体化されてブロック本体２が形成され、その接合面が直接又は間接的に接合されている。
図８（イ）の場合は、ブロック本体２が縦方向に分割されて図８（ロ）に示す如き対をなす略半割状の分割ブロック４として別々に成形され、この分割ブロック４が左右に相対し、分割ブロック４に突出された連結鉄筋５どうしが溶接等で接合されるとともに、分割ブロック４間に連結材６が充填されて互いに接合一体化されてブロック本体２が形成されている。
図９（イ）及び（ハ）の場合はブロック本体２が横方向に分割され、上下に相対する略半割状の分割ブロック４が互いに接合一体化されてブロック本体２が形成され、接合面として図９（イ）の場合には略水平端面どうしが、図９（ハ）の場合は傾斜状端面どうしが夫々直接又は間接的に接合され、又、図９（ロ）の場合はブロック本体２が縦方向に分割され、左右に相対する略半割状の分割ブロック４が互いに接合一体化され、その接合面どうしが直接又は間接的に接合されている。In addition, the underdrain block 1 of the present invention is not necessarily formed integrally from the beginning, and may be formed by joining at least two members formed separately.
For example, as shown in FIGS. 7 to 9, the block body 2 (block 1) having the hole 3 having a specific cross-sectional shape as described above is divided into two substantially in half in the vertical or horizontal direction in the cross-section, thus forming a pair. The block main body 2 (block 1) may be formed by joining and integrating the substantially half-divided divided blocks 4 relative to each other.
Specifically, in the case of FIG. 7 (a), the block main body 2 is divided in the horizontal direction and separately formed as a substantially halved divided block 4 as shown in FIG. 7 (b). The divided blocks 4 are bonded and integrated relative to each other up and down to form the block body 2, and the bonding surfaces thereof are bonded directly or indirectly.
In the case of FIG. 8 (a), the block main body 2 is divided in the vertical direction and separately formed as a substantially half-divided divided block 4 as shown in FIG. 8 (b). The connecting rebars 5 protruding from the divided blocks 4 are joined together by welding or the like, and the connecting material 6 is filled between the divided blocks 4 and joined together to form the block body 2. .
In the case of FIGS. 9A and 9C, the block main body 2 is divided in the horizontal direction, and the substantially half-divided divided blocks 4 which are vertically opposed to each other are joined and integrated to form the block main body 2, and the joint surface In the case of FIG. 9 (a), the substantially horizontal end faces are joined directly or indirectly to each other in the case of FIG. 9 (c), and in the case of FIG. 9 (b), the block main body is joined. 2 is divided in the vertical direction, the substantially half-divided divided blocks 4 facing left and right are joined and integrated with each other, and the joint surfaces are joined directly or indirectly.

上記分割ブロック４は、ブロック本体２がその断面における縦又は横方向で二分割されて略半割状に近い形状となされているのが好ましいが、二分割以上となされていてもよく、その接合面は適宜平面や傾斜面或いは凹凸面等の適宜形状で、長手方向に沿って直線状や凹凸状等となされて分割ブロック４の接合時に互いに接合面が相対するようになされればよく、又、その接合方法も上記図８に示す連結鉄筋５どうしの接合及び連結材６の充填等、適宜接着材や接合材等の使用等により適宜公知の方法が採用されればよい。
上記の如くブロック本体２が複数の分割ブロック４により形成されていると、成形面で一体成形には成形技術を要する特殊で大きな形状のブロック本体２に比し小型で成形しやすい形状の分割ブロック４を製造することで対応が容易で、運搬や取扱いに際しても小型の分割ブロック４のまま容易に行え、必要に応じて分割ブロック４を接合一体化することでブロック本体２、即ちブロック１が容易に得られる利点がある。
尚、上記ブロック１が分割ブロック４の接合により形成される場合についても、上述した孔３やブロック本体２の形状等の設計変更事項が当然適用しうる。
尚又、本発明の暗渠型ブロック１及び上記分割ブロック４はコンクリート製に限らず、合成樹脂や金属等の各種剛性材料から作製されてもよく、上記の如くブロック本体２の外面と孔３の内面との間の厚み（換言すればブロック本体２の外形）も図示のものに限らず、上記材質等によって使用に耐えうる所定の強度を保持すべく適宜変更されてもよい。The divided block 4 is preferably divided into two or more parts by dividing the block body 2 into two substantially vertically or horizontally in the cross section, but may be divided into two or more parts. The surface may be an appropriate shape such as a flat surface, an inclined surface, or an uneven surface, and may be linear or uneven along the longitudinal direction so that the joint surfaces face each other when the divided blocks 4 are joined. As for the joining method, a known method may be adopted as appropriate by appropriately using an adhesive, a joining material, or the like, such as joining of the connecting reinforcing bars 5 and filling of the connecting material 6 shown in FIG.
When the block body 2 is formed by a plurality of divided blocks 4 as described above, the divided block has a shape that is smaller and easier to mold than the special large block body 2 that requires a molding technique for integral molding on the molding surface. 4 is easy to handle, can be easily carried out as a small divided block 4 during transportation and handling, and the block main body 2, that is, the block 1 is easy by joining and integrating the divided blocks 4 as necessary. There are benefits to be gained.
In addition, also when the block 1 is formed by joining the divided blocks 4, the above-described design change matters such as the shape of the hole 3 and the block main body 2 can be naturally applied.
The undercut block 1 and the divided block 4 of the present invention are not limited to concrete but may be made of various rigid materials such as synthetic resin and metal. As described above, the outer surface of the block body 2 and the holes 3 The thickness between the inner surface (in other words, the outer shape of the block main body 2) is not limited to that shown in the drawing, and may be appropriately changed so as to maintain a predetermined strength that can be used by the above materials and the like.

次に、上記暗渠型ブロック１の孔３内の人の移動を容易にするための移動用台車について説明する。
図１０は本発明の移動用台車の一実施の形態を示し、本実施形態の移動用台車７は、図１０（イ）〜（ハ）に示す如く、基台８の前後（長さ方向の両端部側）で幅方向両側下部に計４個の車輪９が設けられてなり、基台８は平面視略方形の受け皿状で、底部が上記暗渠型ブロック１の孔３の底部と略平行をなして幅方向に屈曲又は湾曲状をなし、人Ｐを載せて上記孔３内を移動可能な大きさを有し、各車輪９の車軸１０が基台８の幅方向中央部側に向け斜降状、詳しくは各車軸１０が上記孔３断面の底辺部３ａ両端部付近の面と略平行をなすべく傾斜状をなし、基台８の前後端部（長さ方向の両端部）には引張用のロープ等の連結部１１が設けられている。
上記移動用台車７は、図１０（ハ）に示す如く、暗渠型ブロック１の孔３内に挿入されると、上記の如く車軸１０が傾斜状をなすことから、その各車輪９が孔３断面の底辺部３ａ両端部付近と略直交状に接して基台８が支持され、孔３の長さ方向に沿って（車輪９が上記底辺部３ａ両端部付近に位置して該所に沿って）移動可能となされる。
しかして、本実施形態の移動用台車７は、上記暗渠型ブロック１の孔３内の清掃や点検時、或いは通行時等の必要時に、基台８上に四つん這い又は前かがみの姿勢の人Ｐを載せて連結部１１に連結したロープ等（図示せず）を外部等から引張ったり、或いは基台８上の人Ｐが自ら台車７を動かすことで、たとえ孔３内下部に堆積物やごみ等があっても基台８上の人Ｐに汚れが付着することなく容易に移動でき（図１０（イ）、（ロ）で左方向に移動）、又、基台８の底部が孔３の底部と略平行をなすとともに、車輪９が堆積物やごみ等の少ない孔３断面の底辺部３ａ両端部付近に位置してスムーズ且つ安定状態で移動できる利点を有する。Next, a moving carriage for facilitating the movement of a person in the hole 3 of the culvert block 1 will be described.
FIG. 10 shows an embodiment of the moving carriage of the present invention. The moving carriage 7 of the present embodiment has a front and rear (in the length direction) of the base 8, as shown in FIGS. A total of four wheels 9 are provided at the lower portions on both sides in the width direction on both ends, and the base 8 is a substantially square receiving plate shape in plan view, and the bottom is substantially parallel to the bottom of the hole 3 of the culvert block 1. And is bent or curved in the width direction, has a size that allows the person P to be moved and moves in the hole 3, and the axle 10 of each wheel 9 is directed toward the center in the width direction of the base 8. Inclined, more specifically, each axle 10 is inclined so as to be substantially parallel to the surfaces near both ends of the bottom 3 a of the cross section of the hole 3, and at the front and rear ends (both ends in the length direction) of the base 8. Is provided with a connecting portion 11 such as a pulling rope.
When the moving carriage 7 is inserted into the hole 3 of the culvert type block 1 as shown in FIG. 10 (C), the axle 10 is inclined as described above. The base 8 is supported in contact with the vicinity of both ends of the bottom portion 3a of the cross section, and is supported along the length direction of the hole 3 (the wheel 9 is positioned in the vicinity of both ends of the bottom portion 3a and extends along the place. To be movable.
Therefore, the moving carriage 7 of the present embodiment allows the person P in a crawl or leaning position on the base 8 when necessary for cleaning or inspection in the hole 3 of the culvert block 1 or when passing. A rope or the like (not shown) placed and connected to the connecting portion 11 is pulled from outside or the like, or a person P on the base 8 moves the cart 7 by itself, so that deposits, dust etc. Even if there is, the person P on the base 8 can be easily moved without being contaminated (moved to the left in FIGS. 10 (a) and 10 (b)). In addition to being substantially parallel to the bottom portion, the wheel 9 has an advantage that it is located near both ends of the bottom side 3a of the cross section of the hole 3 with little deposits and dust and can be moved smoothly and stably.

図１１は本発明の移動用台車の他実施の形態を示し、本実施形態の移動用台車７は、図１１（イ）〜（ホ）に示す如く、上記図１０の移動用台車の変形で、その基台８の全体形状が上記のものから多少変更されているが、基本的には上記と略同様でややコンパクトとなされ、車輪９、車軸１０も上記と同方向に向けて設けられ、更に上記孔３内の底部を清掃すべく、その基台８に掃除具１２が付設されたものである。
上記掃除具１２としては、図１１（イ）〜（ハ）に示す如く、その底部が上記と同様に孔３の底部と略平行をなす基台８の前端側の下部に収集用の掻き板部１３が設けられ、該掻き板部１３は図１１（ニ）、（ホ）に示す如く、基台８の幅方向に相対して一対配されてその対向間隔が基台８の前端に向け漸次拡開する末広がり状をなし、その後端部が基台８の幅方向略中央部で所定の間隔をあけて対向されるとともに、基台８の底部にその前後方向（長さ方向）に設けた逆溝状の凹部１５の端部開口部に連結されている。
又、一対の掻き板部１３は夫々略垂直又は斜め板状をなし、図１１（ハ）〜（ホ）に示す如く、その前端から後端にわたる下端部１３ｂが互いに相対する側に漸次湾曲又は屈曲されることで断面が略Ｊ字状となされ、上記下端部１３ｂが孔３断面の底辺部３ａに略沿うべくなされている。尚、下端部１３ｂは上記の如くなされていると収集作用が効果的で好ましいが、必ずしも上記の如く湾曲又は屈曲されていなくてもよいし、又、一対の掻き板部１３の後端側上部が図１１（イ）、（ロ）の如く天板１７で覆われていてもよい。
又、図１１（イ）〜（ハ）に示す如く、基台８の前後（長さ方向）端部の幅方向両側には夫々把手１６が設けられ、基台８上の人Ｐが把手１６を把持して移動可能となされている。
しかして、本実施形態の移動用台車７も上記と同様にして暗渠型ブロック１の孔３内の移動に使用され、その際、台車７の移動（図１１（イ）、（ロ）で左方向に移動）に伴って孔３内底部の堆積物やごみ等が前方末広がり状の掻き板部１３の下端部１３ｂにより掻き採られて、該堆積物やごみ等が掻き板部１３に沿ってその後端部（台車７の幅方向略中央部）に順次誘導されて基台８底部の凹部１５内、即ち孔３の底部の幅方向略中央部に収集され、後方（図１１（イ）、（ロ）で右方向）に排出される。
又、掃除具１２として更に基台８の後端部等の適宜箇所に凹部１５に対応して吸引機のホース吸引口（図示省略）が設けられると、上記の如く収集した堆積物やごみ等を吸引して孔３内の清掃を行うこともできる。尚、上記吸引機は孔３の内部又は外部に適宜設置されたり、或いは基台８に搭載されればよく、又、上記凹部１５も門形、逆Ｕ形、逆Ｖ形、半円形等適宜形状の逆溝状であればよい。
尚又、基台８には上記と同様にロープ等の連結部（図示省略）が設けられたり、又は、把手１６が上記連結部兼用となされてもよい。FIG. 11 shows another embodiment of the moving carriage of the present invention. The moving carriage 7 of this embodiment is a modification of the moving carriage shown in FIG. 10 as shown in FIGS. The overall shape of the base 8 is slightly changed from the above, but basically it is substantially the same as above and slightly compact, and the wheel 9 and the axle 10 are also provided in the same direction as above, Further, a cleaning tool 12 is attached to the base 8 to clean the bottom of the hole 3.
As shown in FIGS. 11 (a) to 11 (c), the cleaning tool 12 has a collecting scraper disposed on the lower part of the front end side of the base 8 whose bottom is substantially parallel to the bottom of the hole 3 as described above. As shown in FIGS. 11 (d) and 11 (e), a pair of scrapers 13 are arranged relative to the width direction of the base 8, and the facing distance is directed toward the front end of the base 8. It forms a divergent shape that gradually expands, and its rear end is opposed at a substantially central portion in the width direction of the base 8 with a predetermined interval, and is provided at the bottom of the base 8 in the front-rear direction (length direction). It is connected to the end opening of the reverse groove-shaped recess 15.
Each of the pair of scraper plates 13 has a substantially vertical or oblique plate shape, and as shown in FIGS. 11 (c) to 11 (e), the lower end portion 13b extending from the front end to the rear end is gradually curved or opposed to each other. By being bent, the cross section is substantially J-shaped, and the lower end portion 13b is formed so as to substantially follow the bottom side portion 3a of the cross section of the hole 3. It is to be noted that the lower end portion 13b is effective and preferable for the collection operation as described above. However, the lower end portion 13b does not necessarily have to be curved or bent as described above, and the rear end side upper portion of the pair of scraping plate portions 13. However, it may be covered with the top plate 17 as shown in FIGS.
Further, as shown in FIGS. 11A to 11C, a handle 16 is provided on each side in the width direction of the front and rear (length direction) ends of the base 8, and a person P on the base 8 holds the handle 16. Can be moved.
Accordingly, the moving carriage 7 of the present embodiment is also used for the movement in the hole 3 of the culvert block 1 in the same manner as described above. At this time, the movement of the carriage 7 (see FIGS. 11 (a) and 11 (b)) (According to the movement in the direction), the deposits and debris at the bottom of the hole 3 are scraped off by the lower end portion 13b of the scraping plate portion 13 that spreads forward, and the deposits and debris and the like travel along the scraping plate portion 13. It is sequentially guided to the rear end portion (the central portion in the width direction of the carriage 7) and collected in the concave portion 15 at the bottom portion of the base 8, that is, in the substantially central portion in the width direction of the bottom portion of the hole 3, and rearward (FIG. (B) to the right).
Further, if the hose suction port (not shown) of the suction machine is provided corresponding to the concave portion 15 at an appropriate place such as the rear end of the base 8 as the cleaning tool 12, the collected matter or dust collected as described above It is also possible to clean the inside of the hole 3 by sucking. The suction device may be appropriately installed inside or outside the hole 3, or may be mounted on the base 8. The concave portion 15 is also appropriately formed in a gate shape, an inverted U shape, an inverted V shape, a semicircular shape, etc. Any reverse groove shape may be used.
In addition, the base 8 may be provided with a connecting portion (not shown) such as a rope in the same manner as described above, or the handle 16 may be used as the connecting portion.

図１２は本発明の移動用台車の他実施の形態を示し、本実施形態の移動用台車７は、図１２（イ）〜（ハ）に示す如く、上記図１０の移動用台車の変形で、上記孔３内の底部を清掃すべく、その基台８に掃除具１２として掻き板部１３とその後方に収納部１４が付設されたものである。
即ち、本実施形態の移動用台車７は、基台８、車輪９、車軸１０、連結部１１は基本的に図１０と略同様で基台８の底部が上記に比し高く位置され、基台８の後端部に箱状の収納部１４が設けられ、掻き板部１３はその後の上端部１３ａが収納部１４の開口部１４ａに連続されるとともに、基台８から斜降状に突出して基台８の底部下に位置する前下端部１３ｂが上記孔３断面の底辺部３ａに略沿うべくなされ、掻き板部１３を支持するために基台８の前後方向（長さ方向）に沿う支持板１３ｃが適宜間隔で複数並列状に基台８から垂下されている。
しかして、本実施形態の移動用台車７も上記と同様にして暗渠型ブロック１の孔３内の移動に使用され、その際、台車７の移動（図１２（イ）、（ロ）で左方向に移動）に伴って孔３内底部の堆積物やごみ等が掻き板部１３の前下端部１３ｂにより掻き採られ、該堆積物やごみ等が支持板１３ｃに沿って掻き板部１３上から後上端部１３ａに順次押し上げられ、開口部１４ａを介して収納部１４内に収集され、孔３内の清掃が行なわれる。FIG. 12 shows another embodiment of the movement carriage of the present invention. The movement carriage 7 of this embodiment is a modification of the movement carriage shown in FIG. 10 as shown in FIGS. In order to clean the bottom part in the hole 3, a scraper part 13 and a storage part 14 are attached to the base 8 as a cleaning tool 12 on the rear side.
That is, in the moving carriage 7 of this embodiment, the base 8, the wheel 9, the axle 10, and the connecting portion 11 are basically the same as those in FIG. 10, and the bottom of the base 8 is positioned higher than the above. A box-shaped storage portion 14 is provided at the rear end portion of the base 8, and the scraper plate portion 13 has a subsequent upper end portion 13 a continuous with the opening portion 14 a of the storage portion 14 and protrudes obliquely from the base 8. The front lower end portion 13b located below the bottom portion of the base 8 is substantially aligned with the bottom side portion 3a of the cross section of the hole 3 so as to support the scraping plate portion 13 in the front-rear direction (length direction) of the base 8. A plurality of supporting plates 13c are suspended from the base 8 in parallel with each other at appropriate intervals.
Thus, the moving carriage 7 of the present embodiment is also used for the movement in the hole 3 of the culvert block 1 in the same manner as described above. At this time, the movement of the carriage 7 (see FIGS. 12 (a) and 12 (b)) The deposits, dust, etc. at the bottom of the hole 3 are scraped off by the front lower end 13b of the scraper plate 13, and the deposits, dust, etc. are on the scraper plate 13 along the support plate 13c. Are sequentially pushed up to the rear upper end portion 13a, collected in the storage portion 14 through the opening portion 14a, and the hole 3 is cleaned.

尚、本発明の移動用台車は必ずしも上記実施形態のものに限定されることなく、本発明の意図する範囲内で種々の設計変更がなされてもよい。
例えば基台８は上記形状に限らず平面視各種の形状の凹状（安定性の面で底部が暗渠型ブロック１の孔３の底部と略平行をなして幅方向に屈曲又は湾曲状をなすのが好ましいが、これに限らない）や平坦な台状等に形成され、上記孔３内の堆積物、ごみ、異物等の掃除、除去や点検等をなすべく、少なくとも人を載せて上記孔３内をその長さ方向に移動可能で、下部の車輪９が上記孔３断面の底辺部３ａ両端部付近に位置しうる大きさとなされておればよい。
又、車輪９も４個に限らず例えば３輪車の如く３個で基台８を支持してもよいし、基台８に駆動装置を設けることで車輪９が駆動輪となされてもよいし、又、車軸１０も上記の如き傾斜状で車輪９が孔３断面の底辺部３ａ両端部付近と略直交状に接するのが好ましいが、該車軸１０は略水平状となされたり、或いは又、その傾斜角度を変えることで例えば図１３の左半部や右半部に示す如く円形孔２１を有する暗渠型ブロック２０にも適用可能なように設計変更することもできる。
又、掃除具１２に関しても、孔３内底部を清掃可能であればよく、少なくとも掻き板部１３を有し、掻き板部１３の形状、構造も適宜で、基台８から突出して下端部１３ｂが上記孔３断面の底辺部３ａに略沿うべくなされればよく、これに加えて上記の如く吸引機や収納箱１４（箱状の他、袋や容器状等、種々の形状で堆積物、ごみ等を収納可能なものであればよい）が具備されればよい。The moving carriage of the present invention is not necessarily limited to that of the above-described embodiment, and various design changes may be made within the scope intended by the present invention.
For example, the base 8 is not limited to the above-mentioned shape, but has a concave shape with various shapes in plan view (the bottom portion of the base 8 is bent or curved in the width direction with the bottom portion being substantially parallel to the bottom portion of the hole 3 of the culvert block 1. However, the hole 3 is formed in a flat trapezoidal shape, and at least a person is placed on the hole 3 in order to clean, remove, or inspect the deposits, dust, and foreign matters in the hole 3. It is only necessary that the inner wheel can be moved in the length direction and the lower wheel 9 can be positioned in the vicinity of both ends of the bottom 3a of the hole 3 cross section.
Further, the number of wheels 9 is not limited to four, and the base 8 may be supported by three, for example, a three-wheeled vehicle, or the wheel 9 may be a driving wheel by providing a driving device on the base 8. In addition, the axle 10 is also inclined as described above, and the wheel 9 is preferably in contact with the vicinity of both ends of the bottom 3a of the cross section of the hole 3, but the axle 10 is substantially horizontal, or alternatively By changing the inclination angle, for example, the design can be changed so that it can also be applied to a culvert block 20 having a circular hole 21 as shown in the left half part and the right half part of FIG.
Further, the cleaning tool 12 only needs to be able to clean the inner bottom portion of the hole 3 and has at least a scraping plate portion 13, and the shape and structure of the scraping plate portion 13 are also appropriate and protrude from the base 8 to lower end portion 13 b. Should be made substantially along the bottom part 3a of the cross section of the hole 3, and in addition to this, as described above, the suction machine and the storage box 14 (the deposits in various shapes such as a bag, a container, etc. Anything that can store garbage or the like may be provided.

１暗渠型ブロック
２ブロック本体
２ａ上面
３孔
３ａ底辺部
３ｂ側辺部
３ｃ頂部
４分割ブロック
７移動用台車
８基台
９車輪
１０車軸
１２掃除具
１３掻き板部
１３ｂ下端部
Ｐ人
Ｔ三角形
ｒ路面DESCRIPTION OF SYMBOLS 1 Dark culvert type block 2 Block main body 2a Upper surface 3 Hole 3a Bottom side part 3b Side side part 3c Top part 4 Split block 7 Carriage for moving 8 Base 9 Wheel 10 Axle 12 Cleaning tool 13 Scraping plate part 13b Lower end P Person T Triangle r Road surface

Claims

The upper surface (2a) of the block body (2) having a hole (3) along the longitudinal direction inside has a predetermined thickness between the upper part of the hole (3), and the cross-sectional shape of the hole (3) is Each of the corners of the substantially triangular shape that is substantially bilaterally symmetric is contracted inward to form a convex curve or convex bend toward the outside, and the apex (3c) is formed in a substantially mountain shape. Each side has a different shape in which both sides (3b) and bottom (3a) are formed by bulging outward to form a convex curve or convex bend toward the outside, and inside the hole (3) A culvert type block that allows at least people to enter in four-sided posture.

The block main body (2) having the hole (3) having the specific cross-sectional shape is divided into at least two parts in the vertical or horizontal direction in the cross section, and the divided blocks (4) are joined and integrated to form the block main body (2). The underdrain block according to claim 1.

The division block for forming a culvert type waterway block according to claim 2, wherein the block main body (2) having the hole (3) having the specific cross-sectional shape is divided into two substantially in half in the vertical or horizontal direction in the cross section.

Each wheel (9) provided in the lower part on both sides in the width direction of the base (8) on which a person can be placed is a carriage for movement in the hole (3) of the culvert block (1) according to claim 1 or 2. A moving carriage that is positioned near both ends of the bottom (3a) of the cross section of the hole (3) and is moved substantially along the place.

The bottom of the base (8) is substantially parallel to the bottom of the hole (3), and a cleaning tool (12) is attached to the base (8) to clean the inner bottom of the hole (3). 12) has at least a collecting scraping plate portion (13) protruding from the base (8) and having a lower end portion (13b) substantially extending along the bottom portion (3a) of the cross section of the hole (3). The moving carriage described.