JPH0321733A - U-shaped gutter block - Google Patents
U-shaped gutter blockInfo
- Publication number
- JPH0321733A JPH0321733A JP1155061A JP15506189A JPH0321733A JP H0321733 A JPH0321733 A JP H0321733A JP 1155061 A JP1155061 A JP 1155061A JP 15506189 A JP15506189 A JP 15506189A JP H0321733 A JPH0321733 A JP H0321733A
- Authority
- JP
- Japan
- Prior art keywords
- shaped
- gutter
- groove
- gutter body
- angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001154 acute effect Effects 0.000 claims abstract description 6
- 238000013459 approach Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 6
- 239000000945 filler Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 2
- 235000000177 Indigofera tinctoria Nutrition 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229940097275 indigo Drugs 0.000 description 1
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Road Paving Structures (AREA)
- Sewage (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、道路に沿って埋設されるＵ型側溝体の改良に
関する．
（従来の技術とその問題点）
舗装道路の両側には側溝が道路に沿って敷設され、道路
上の雨水や周囲の山から流出してくる山水などを集めて
流下させ、道路の冠水を防止するようになっている．こ
の側溝の形成には、まず道路に沿って清を掘り、この溝
内に４Ｍ程度の長さを持つコンクリート製のＵ型側溝体
を連続して埋設する事によって行われていた．
（発明が解決しようとする問題点．）
平坦な道路では側溝内の水は緩やかに流れるが坂道では
側溝が急勾配になり、流速が過度になって水があふれる
という問題点があった．そこで、道路の勾配に合わせて
側溝の流速勾配を定め、側溝内の流速が過度にならない
ように配慮する事としていた．一方、平坦部分は端面が
底面部に対して直角で同じ大きさのＵ型側溝体を順次掘
削した渭内に埋設して行けばよいが、坂道の場合には勾
配が一定でなく平坦部分の工事と同様には施工する事が
出来ず、通常は前記道路施工基準に合わせて現場施工を
行う事になっていた．それ故、坂道の多い山間部の（ｌ
？ｌ清工事は手間が懸かり非常な割高になるばかりか不
均一となり、工事の質にばらつきがあった．
（発明の目的）
本発明は、かかる従来例の欠点に鑑みてなされたもので
、その目的とするところは、山間部でも平坦部分と同様
に均質な施工する事の出来る規格化の可能なＵ型側溝体
を提供するにある．（問題点を解決するための手段）
上記の１的を達成するために、本発明の毘ｔ唄上では；
■底面部（１〉の両側辺から側壁（２〉を立設した上方
開口、断面Ｕ字形のＵ形側溝体において、■底面部（１
〉に対して側壁（２）の一方の端辺のなす角度（θ１）
を鋭角にすると共に他の端辺とのなす角度（θ２）を鈍
角に形成し、
■且つ鈍角に形成した方の底面部（１）の端部を延出し
、隣接して配役された他のＵ型側渭体〈＾〉の端部を載
置するための端部載置用延出部（３）とする．
と言う技術的手段を採用しており、
請求項２ではこれを改良して；
■相隣接せるＵ型側消体（＾）が互いに接する端而にお
いて、Ｕ形溝に沿って允填溝（４）を凹設する．と言う
技術的手段を採用しており、
請求項３では更にこれを改良して；
■請求項（２）の充填清（４〉において、Ｕ形湧の内周
面に近付く程、端面からの開口幅が次第に狭くなる断面
三角形状の充填７１１（４）とする．と言う技術的手段
を採用している．（作 用）
■坂道部分の道路に沿って溝を掘削する．■坂の下側か
らＵ形側溝体を敷設して行くのであるが、下側のＵ型側
溝体（＾）の端部載置用延出部（３）上に上流側のＵ型
０１！Ｉ溝体（＾）の端部を載置し、両者を連結する．
■この時、両者の接続部分に段差（５〉が発生し、その
分だけ溝（道路）の勾配に対して側溝の流速勾配が緩や
かになる．
■必要があればＵ形溝に沿って凹設された充填清｛４｝
にモルタル乃至ゴム系充填材（６）を充填する．■この
場合、充填溝（４）はＵ形溝の内周面に舌付く程開口幅
が次第に狭くなるので、長期間に亘って充填材（６〉の
脱落がない．
（実施例）
以下、本発明を図示実施例に従って説明する．Ｕ型側溝
体（＾）は急勾配部分で使用する全長の短い（２ｍ＞も
のと、比較的勾配の緩やかな部分に使用する全長の長い
（４ ｍ＞ものとがあり、１（８）をするクローズド型
のものと蓋（８）をしないオーブン型のものとがある．
断面形状は、短長とも同じである．
ここでは、第１実施例としてクローズド型の全長の短い
Ｕ型側溝体（＾）を代表に説明し、他の実施例としてオ
ープン型並びに全長の長いものの相違点を述べる．
Ｕ型側溝体（＾）は、底面部（１）の両側辺から側壁（
２）を立設した上方開口、断面Ｕ字形のも，ので、全長
が２−となっている．（勿論、この寸法に限られず、こ
れより長くても良いし、逆に短くても良い．〉このＵ形
側溝体において、底面部（１）に対して側壁（２〉の一
方の端辺のなす角度（θ，）を鋭角（本実施例では５゜
〜１５°）にすると共に他の端辺とのなす角度（θ２）
を鈍角（本実施例では９５゜〜１０５゜）に形成してあ
る．そして、鈍角に形成した方の底面部（１）の端部を
延出し、隣接して配設された他のＵ型側溝体（＾）の端
部を載置するための端部載置用延出部（３）としてある
．ここで、端部載置用延出部（３）上に隣接せるＵ型側
溝体（＾）の端部が載置された場合に側壁（２）の上端
面が面一になるように、端部載置用延出部（３）側の側
聖（２〉端部の高さ（Ｈ ２）（即ち、底面部（１）の
上面がら（ｌ１壁（２）の上端面迄の高さ〉が反対側の
底面部（１）から側壁（２〉の上端部迄の高さ（Ｈ１）
と等しくなるように構成されている．又、Ｕ型側講体〈
＾）内部にはネット状に編まれ、Ｕ字状に折り曲げられ
た鉄筋（７）がインサートされており、Ｕ型側溝゛体く
＾〉の強度を高めてある．
Ｕ型側溝体（＾）の端面は平坦面でも良いが、隣接せる
Ｕ型側溝体（＾）同士の接続性を高めるために、相隣接
せるＵ型側溝体（＾）が互いに接する端面において、端
部載置用延出部（３）側の端面にＵ形溝に沿って充填渭
（４）を凹設してもよく、この場合、充填溝（４）の形
状を、Ｕ形渭の内周面に近付く程、端面からの開口幅が
次第に狭くなる断面三角形状としておけば充填材（６）
の長期にわたる脱落が防止出来るものである．クローズ
ド型のＵ型側溝体〈＾）では、側壁（２）の上端内面に
段状に蓋載置用段（９〉が形成されているもので、この
蓋載置用段（９）内に蓋（８）が嵌め込まれるようにな
りいる．
次に、道路勾配と流速勾配との関係に付いて設計基準を
説明すれば次の通りである．
道路勾配（％） 流速勾配（％）
１３６
１２ ５
１１ ４
１０ ３Ｌ上 Ｕ型
９６
８５
７ ４ 上 Ｕ型しかして
、まず、坂道部分の道路わきに道路に沿って溝を掘削す
る．次に、坂の下側からＵ形測溝体を敷設して行くので
あるが、第８図のように下側のＵ型側溝体（＾）の端部
載置用延出部（３）上に上流側のＵ型側溝体〈＾）の端
部を載置し、両者を連結して行く．この時、両者の接続
部分に段差（５）が発生し、その分だけ溝（道路）の勾
配に対して側溝の流速勾配が緩やかになる．ここで、道
路勾配が１０％〜１３％と急な場合には短寸Ｕ型側溝体
（＾）を使用し、流速勾配が６％〜３％となるようにし
、逆に道路勾配が９％〜７％と緩い場合には長寸Ｕ型側
溝体（＾〉を使用して流速勾配が６％〜４％となるよう
にする．このようにして上流側に向がって勾配に合わせ
て順次Ｕ型側溝体（＾）を敷設していく．
ここで、Ｕ型側溝体（＾）の端面が平坦面の場合には、
平坦面間にモルタルやゴム系充填材（６〉を充填して隣
接せるＵ型側溝体（＾）の接続性を向上させても良いが
、充填渭（４）が凹設されている場合にはこの充填溝（
４）に前記モルタルやゴム系充填材（６）を充填する事
になる．この場合、充填講（４）はＵ形溝の内周面に近
付く程、開口幅が次第に狭くなる断面三角形状となって
いるので、充填材（６〉の長期にわたる脱落が防止出来
るものである．オープン型の場合は開放状態のまま使用
されるものであり、クローズド型の場合は流入口のある
Ｍ（８）がされてる．
（本発明の効果）
本発明は、底面部の両側辺から側壁を立設した上方開口
、断面Ｕ字形のＵ形側湧体において、底面部に対して側
壁の一方の端辺のなす角度を鋭角にすると共に他の端辺
とのなす角度を鈍角に形威し、且つ鈍角に形成した方の
底面部の端部を延出し、隣接して配設された他のＵ型側
清体の端部を載置するための端部載置用延出部としてあ
るので、下側のＵ型側溝体の端部載置用延出部上に上流
側のＵ型側溝体の端部をｆｉ置していくだけで、所定の
流速勾配とする事が出来、平坦部分と同様の施工能率を
上げる事が出来ると言う利点がある．更に、相隣接せる
Ｕ型測溝体が互いに接する端面において、Ｕ形溝に沿っ
て充填溝を凹設してあるので、この充填溝にモルタルや
ゴム系充填材を充填する事により隣接せるＵ型側溝体の
接続性を高める事が出来るものであり、加えて、この充
填講を、Ｕ形溝の内周面に近付く程、端面からの開口幅
が次第に狭くなる断面三角形状とする事により、充填材
の長期にわたる脱落が防止出来ると言う利点もある．
尚、このように側溝内の接続部分に段差が生ずると側溝
を流れる水に小さい滝のような変化が生じ、道路の美蜆
を高める事になる．DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to improvement of U-shaped gutter bodies buried along roads. (Conventional technology and its problems) Gutters are laid along both sides of a paved road to collect rainwater on the road and mountain water flowing from surrounding mountains and drain it away, preventing the road from flooding. It is designed to do so. These ditches were created by first digging a clearing along the road, and then burying concrete U-shaped ditches approximately 4m long into the ditch. (The problem that the invention aims to solve.) On flat roads, the water in the gutter flows slowly, but on slopes, the gutter becomes steep and the flow speed becomes excessive, causing water to overflow. Therefore, the flow velocity gradient of the side ditch was determined to match the slope of the road, and care was taken to ensure that the flow velocity within the ditch did not become excessive. On the other hand, for flat areas, U-shaped gutter bodies of the same size and with end faces perpendicular to the bottom part can be buried in the ditch that has been excavated one after another, but in the case of slopes, the slope is not constant and the flat area It could not be constructed in the same way as construction work, and normally construction was to be carried out on site in accordance with the road construction standards mentioned above. Therefore, in mountainous areas with many slopes (l
? Not only was cleaning work time-consuming and extremely expensive, but it was also uneven and the quality of the work varied. (Object of the Invention) The present invention was made in view of the drawbacks of the conventional examples, and its purpose is to create a standardized U that can be constructed evenly in mountainous areas as well as on flat areas. To provide mold gutter body. (Means for Solving the Problems) In order to achieve the above-mentioned objective 1, the present invention has: ■ an upper opening with side walls (2) erected from both sides of the bottom part (1); In the U-shaped gutter body with a U-shaped cross section,
Angle (θ1) formed by one end of the side wall (2) with respect to
(1) is made into an acute angle, and the angle (θ2) formed with the other end side is made into an obtuse angle. This is the end placement extension part (3) on which the end of the U-shaped side body <^> is placed. Claim 2 improves this by: ■ At the end where the adjacent U-shaped side dissipators (^) touch each other, a filler groove () is provided along the U-shaped groove. 4) is recessed. Claim 3 further improves this; ■ In the filling clearing (4) of claim (2), the closer to the inner circumferential surface of the U-shaped well, the more the water from the end surface increases. The technical means of filling 711 (4) with a triangular cross-section whose opening width gradually narrows is adopted. (Function) ■ Excavating a trench along the road on a slope. ■ Starting from the bottom of the slope. The U-shaped gutter body will be laid, and the U-shaped gutter body (^) on the upstream side will be placed on the extension part (3) for placing the end of the U-shaped gutter body (^) on the lower side. Place the end of the side and connect the two. ■At this time, a step (5〉) will occur at the connection between the two, and the flow velocity gradient of the side gutter will become gentler relative to the slope of the gutter (road). ．■ If necessary, fill the groove with a recess along the U-shaped groove {4}
Fill with mortar or rubber-based filler (6). ■In this case, the opening width of the filling groove (4) gradually becomes narrower as it touches the inner peripheral surface of the U-shaped groove, so the filling material (6>) does not fall off over a long period of time. (Example) Below, The present invention will be explained according to the illustrated embodiments.The U-shaped gutter body (^) has a short total length (2 m>) used on steep slopes, and a long total length (4 m>) used on relatively gentle slopes. There are two types: closed type with 1 (8) and oven type without lid (8).
The cross-sectional shape is the same for both short and long lengths. Here, as a first example, a closed type U-shaped gutter body (^) with a short overall length will be explained as a representative, and as other examples, the differences between an open type and a long overall length will be described. The U-shaped gutter body (^) extends from both sides of the bottom part (1) to the side wall (
2) has an upward opening and a U-shaped cross section, so the total length is 2-. (Of course, the dimensions are not limited to this, and may be longer or shorter than this.) In this U-shaped gutter body, one end of the side wall (2) with respect to the bottom part (1) Make the angle (θ,) acute (5° to 15° in this example) and make the angle (θ2) with the other edge.
is formed at an obtuse angle (95° to 105° in this example). Then, the end of the bottom surface part (1) formed at an obtuse angle is extended, and the end part is used for placing the end of another U-shaped gutter body (^) arranged adjacently. It is located as an extension part (3). Here, when the end of the adjacent U-shaped gutter body (^) is placed on the end placement extension (3), the upper end surface of the side wall (2) is flush with the upper end surface of the side wall (2). The height of the end (H2) on the side of the end mounting extension (3) (i.e., the height of the top of the bottom part (1) to the top of the wall (2) Height (H1) from the bottom (1) on the opposite side to the top of the side wall (2)
It is constructed so that it is equal to Also, the U-shaped side lecture body
^) A reinforcing bar (7) woven into a net and bent into a U-shape is inserted inside to increase the strength of the U-shaped gutter body. The end surfaces of the U-shaped gutter bodies (^) may be flat surfaces, but in order to improve the connectivity between adjacent U-shaped gutter bodies (^), the end surfaces where the adjacent U-shaped gutter bodies (^) touch each other, A filling groove (4) may be recessed along the U-shaped groove on the end surface of the end placement extension (3), and in this case, the shape of the filling groove (4) is changed to the shape of the U-shaped groove. Filler material (6) can be used if the cross section is triangular, with the opening width from the end surface becoming narrower as it approaches the inner circumferential surface.
This can prevent long-term shedding. In the closed type U-shaped gutter body (^), a step-shaped lid mounting step (9) is formed on the inner surface of the upper end of the side wall (2), and inside this lid mounting step (9) The lid (8) is now fitted in. Next, the design criteria regarding the relationship between the road slope and the flow velocity gradient are as follows: Road gradient (%) Flow velocity gradient (%) 136 12 5 11 4 10 3L top U-type 96 85 7 4 top U-shape First, excavate a trench along the road beside the slope.Next, lay a U-shape gutter from the bottom of the slope. As shown in Figure 8, place the end of the U-shaped gutter body on the upstream side (^) on the extension part (3) for placing the end of the U-shaped gutter body (^) on the lower side. and connect the two. At this time, a step (5) occurs at the connection between the two, and the flow velocity gradient of the side gutter becomes gentler than that of the gutter (road). Here, if the road gradient is as steep as 10% to 13%, use a short U-shaped gutter body (^) so that the flow velocity gradient is 6% to 3%, and conversely, if the road gradient is 9%. If the flow rate is 6% to 4%, use a long U-shaped gutter body (^) to adjust the flow velocity gradient to 6% to 4%.In this way, move upstream to match the gradient. Lay the U-shaped gutter bodies (^) one by one.Here, if the end surface of the U-shaped gutter body (^) is flat,
Mortar or rubber filler (6) may be filled between the flat surfaces to improve the connectivity of the adjacent U-shaped gutter body (^), but if the filling arm (4) is recessed, is this filling groove (
4) will be filled with the mortar and rubber filler (6). In this case, the filler (4) has a triangular cross-section with the opening width gradually narrowing as it approaches the inner peripheral surface of the U-shaped groove, which can prevent the filler (6>) from falling off over a long period of time. ．In the case of an open type, it is used as it is in the open state, and in the case of a closed type, it has an M(8) inlet with an inlet. (Effects of the present invention) In a U-shaped side spring with an upward opening and a U-shaped cross section, one edge of the side wall forms an acute angle with respect to the bottom, and the angle with the other edge forms an obtuse angle. An extension part for placing an end on which the end of the bottom part formed at an obtuse angle is extended and the end of another U-shaped side body disposed adjacent thereto is placed. Therefore, by simply placing the end of the upstream U-shaped gutter body on the extension for placing the end of the lower U-shaped gutter body, a predetermined flow velocity gradient can be achieved. It has the advantage of being able to increase construction efficiency similar to that of flat areas.Furthermore, since a filling groove is recessed along the U-shaped groove on the end face where adjacent U-shaped groove measuring bodies touch each other, By filling this filling groove with mortar or rubber-based filler, it is possible to improve the connectivity of adjacent U-shaped gutter bodies. By creating a triangular cross-sectional shape in which the width of the opening gradually narrows from the end face, there is an advantage in that the filling material can be prevented from falling off over a long period of time.In addition, if a step occurs at the connection part in the side gutter, the side gutter A small waterfall-like change occurs in the flowing water, enhancing the beauty of the road.
第１図・・・本発明の短寸オープン型Ｕ型ｆｆｔｌ＋講
体の実施例の正面図
第２図・・・第１図の左側而図、
第３図・・・第１図の右側面図、
第４図・・・本発明のクローズド型Ｕ型側溝体の実施例
の正面図
第５図・・・第４図の左側面図、
第６図・・・第４図の右側面図、
第７図・・・本発明の長尺オープン型Ｕ型側溝体の実施
例の正面図
第８図・・・本発明のＵ型側溝体の接続状態を示す部分
斜視図
第９図・・・本発明の施工状態を示す正面図（＾）・・
・Ｕ型側溝体
（θ１，θ２）・・・底面部と側壁端面とのなす角度１
・・・底面部 （２）・・・側壁３・・・端部載
置川延出部 〈４）・・・充填溝５・・・段差
（６）・・・充填材７・・・鉄筋 （８）・
・・蓋９・・・藍載置用段Figure 1...Front view of an embodiment of the short open U-type fftl + lecture body of the present invention.Figure 2...Left side view of Figure 1.Figure 3...Right side of Figure 1. Figure 4: Front view of an embodiment of the closed U-shaped gutter body of the present invention. Figure 5: Left side view of Figure 4. Figure 6: Right side view of Figure 4. , Fig. 7...Front view of an embodiment of the long open type U-shaped gutter body of the present invention Fig. 8...A partial perspective view showing the connected state of the U-shaped gutter body of the present invention...Fig. 9...・Front view showing the construction state of the present invention (^)...
・U-shaped side gutter body (θ1, θ2)... Angle 1 between the bottom part and the side wall end face
...Bottom part (2)...Side wall 3...End part placement river extension part <4)...Filling groove 5...Step
(6)...Filler 7...Reinforcing bar (8)・
... Lid 9 ... Indigo placement step
Claims (3)
面Ｕ字形のＵ形側溝体において、底面部に対して側壁の
一方の端辺のなす角度を鋭角にすると共に他の端辺との
なす角度を鈍角に形成し、且つ鈍角に形成した方の底面
部の端部を延出し、隣接して配設された他のＵ型側溝体
の端部を載置するための端部載置用延出部とした事を特
徴とするＵ型側溝体。(1) In a U-shaped gutter body with an upward opening and a U-shaped cross section, with side walls erected from both sides of the bottom part, one end of the side wall makes an acute angle with respect to the bottom part, and the other end an obtuse angle, and an end on which the end of the obtuse bottom part is extended, and on which the end of another U-shaped side gutter placed adjacently is placed. A U-shaped side gutter body characterized by having an extension for placement.
て、Ｕ形溝に沿って充填溝を凹設して成る事を特徴とす
る請求項（１）に記載のＵ型側溝体。(2) The U-shaped side gutter body according to claim 1, characterized in that a filling groove is recessed along the U-shaped groove at the end surfaces where the adjacent U-shaped gutter bodies contact each other.
に近付く程、端面からの開口幅が次第に狭くなる断面三
角形状の充填溝とした事を特徴とするＵ型側溝体。(3) A U-shaped side gutter body characterized in that, in the filling groove of claim (2), the filling groove has a triangular cross-section, with the opening width from the end surface becoming gradually narrower as it approaches the inner peripheral surface of the U-shaped groove. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1155061A JPH0321733A (en) | 1989-06-17 | 1989-06-17 | U-shaped gutter block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1155061A JPH0321733A (en) | 1989-06-17 | 1989-06-17 | U-shaped gutter block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0321733A true JPH0321733A (en) | 1991-01-30 |
| JPH0457819B2 JPH0457819B2 (en) | 1992-09-14 |
Family
ID=15597813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1155061A Granted JPH0321733A (en) | 1989-06-17 | 1989-06-17 | U-shaped gutter block |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0321733A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003057084A (en) * | 2001-08-16 | 2003-02-26 | Toyo Keiki Co Ltd | Water meter |
-
1989
- 1989-06-17 JP JP1155061A patent/JPH0321733A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003057084A (en) * | 2001-08-16 | 2003-02-26 | Toyo Keiki Co Ltd | Water meter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0457819B2 (en) | 1992-09-14 |
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