JPS63243591A - Drain pipe - Google Patents
Drain pipeInfo
- Publication number
- JPS63243591A JPS63243591A JP62078957A JP7895787A JPS63243591A JP S63243591 A JPS63243591 A JP S63243591A JP 62078957 A JP62078957 A JP 62078957A JP 7895787 A JP7895787 A JP 7895787A JP S63243591 A JPS63243591 A JP S63243591A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- water
- standpipe
- joint
- flowing
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 239000002351 wastewater Substances 0.000 claims description 4
- 239000003599 detergent Substances 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 239000010865 sewage Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Sink And Installation For Waste Water (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は高層ビルなどに配設して生活汚水を流込む排水
管に関する。DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to a drain pipe installed in a high-rise building or the like and into which domestic sewage flows.
「従来の技術」
従来、複数の横枝管を立管に連通接続させ、横枝管から
立管に汚水を送出すると共に、前記立管の下端にベンド
管を介して横着を接続させ、横着から下水本管に汚水を
流出させていた。"Prior Art" Conventionally, a plurality of side branch pipes are connected to a standpipe to send wastewater from the side branch pipes to the standpipe, and a side pipe is connected to the lower end of the standpipe via a bend pipe. Sewage was being discharged into the main sewage pipe.
「発明が解決しようとする問題点」
前記従来技術は、立管の流水速度に比べて横着の流水速
度が遅くなるから、立管からの流水が横着内の流水に衝
突し、横着内で跳水現象を生じ易く、水の跳上り及びう
ねり及び洗剤泡などの発生により流水性が維持されない
等の問題があった。"Problems to be Solved by the Invention" In the above-mentioned prior art, since the water flow rate in the side pipe is slower than that in the standpipe, the water flowing from the standpipe collides with the water in the side pipe, causing water to splash in the side pipe. There were problems in that water flowability was not maintained due to the occurrence of splashing and swell of water, detergent foam, etc.
「問題点を解決するための手段」
然るに、本発明は、排水を集合させる立管の下端にベン
ド管を介して横着を連結させる構造において、前記ベン
ド管と横着の間に減勢継手を設け、前記ベンド管からの
流水速度を減速させる減勢池を前記減勢継手内部に形成
したことを特徴とするものである。"Means for Solving the Problems" However, the present invention provides a structure in which a horizontal pipe is connected to the lower end of a standpipe for collecting wastewater via a bend pipe, and an energy-reducing joint is provided between the bend pipe and the horizontal pipe. The present invention is characterized in that an energy-reducing pond is formed inside the energy-reducing joint to reduce the speed of water flowing from the bend pipe.
「作 用」
従って、前記立管から急速度で落下する流水を前記減勢
池に流下させることにより、立管からの流水の勢いを低
下させて横着内での水の跳上がり及びうねりなどを阻止
し得、横着内での跳水現象並びに洗剤泡などの発生を防
止し得ると共に、前記へンド管内で形成される空気芯な
ども適正に維持し得、ベンド管及び横着の流水性を容易
に向上させ得るものである。"Function" Therefore, by causing the water falling at a rapid rate from the standpipe to flow down to the energy reduction pond, the force of the water flowing from the standpipe is reduced, thereby preventing the water from jumping up and undulating in the horizontal pipe. It is possible to prevent the water splash phenomenon and the generation of detergent foam in the bend pipe, and also to properly maintain the air core formed in the bend pipe, thereby facilitating the water flow of the bend pipe and the bend pipe. This can be improved.
「実施例」
以下、本発明の実施例を図面に基づいて詳述する。第１
図は要部の側面図、第２図は全体説明図であり、高層ビ
ル（１）の最下階乃至最上階に排水用立管（２）を立設
させる。前記立管（２）の上端をビル（１）屋上に突出
させて大気中に開放させると共に、雨水及び風の侵入を
防ぐカバー（３）を前記立管（２）上端に固設している
。"Example" Hereinafter, an example of the present invention will be described in detail based on the drawings. 1st
The figure is a side view of the main parts, and FIG. 2 is an explanatory view of the entire structure. A drainage standpipe (2) is erected from the bottom floor to the top floor of a high-rise building (1). The upper end of the standpipe (2) is made to protrude onto the roof of the building (1) and open to the atmosphere, and a cover (3) that prevents rainwater and wind from entering is fixedly installed on the upper end of the standpipe (2). .
また前記立管（２）の中間に排水管継手（４）を設け、
複数の横枝管（５）・・・を前記立管（２）に排水管継
手（４）を介して連通接続させると共に、前記立管（２
）の最下端にベンド管（６）を設け、補助横着（７）及
び減勢継手（８）を介して前記ベンド管（８）に横着（
９）を連結させる。そして前記ビル（１）の各階に生じ
る生活汚水を各横枝管（５）・・・から立管（２）に流
出させると共に、前記立管（２）からの流水を前記横着
（９）を介して下水本管（図示省略）に送出するように
構成している。Further, a drain pipe joint (4) is provided in the middle of the standpipe (2),
A plurality of side branch pipes (5)... are connected to the standpipe (2) via a drain pipe joint (4), and the standpipe (2)
) is provided at the lowest end of the bend pipe (6), and a horizontal joint (
9) are connected. Then, the domestic sewage generated on each floor of the building (1) flows out from each side branch pipe (5) to the standpipe (2), and the water from the standpipe (2) is transferred to the side pipe (9). The structure is such that the water is sent to a sewer main pipe (not shown) through the pipe.
さらに第３図乃至第５図に示す如く、前記立管（２）よ
り大径の円筒状側板部（ｌＯ）と、前記側板部（ｌＯ）
上端の円形開口を閉塞する上板部（１１）と、前記側板
部（１０）下端側を立管（２）と略同−径に絞って形成
した集合落下口（１２）とを、前記排水管継手（４）に
設ける。前記排水管継手（４）の集合落下口（１２）に
フランジ接合部（１３）を介して下側の立管（２）を連
通接続させる。一方、前記側板部（１０）外周に放射状
に９０度間隔で３木の取水口（１４）・・・を形成し、
各取水口（１４）・・・にフランジ接合部（１５）を介
して横枝管（５）を連通接続させ、前記排水管継手（４
）に対し３木の横枝管（５）・・・を連結させ、排水管
継手（４）の側板部（１０）内部に形成した共通空間（
１６）に各横枝管（５）・・・を連通開放させるように
構成している。Further, as shown in FIGS. 3 to 5, a cylindrical side plate portion (lO) having a larger diameter than the standpipe (2),
The upper plate part (11) that closes the circular opening at the upper end, and the collection drop opening (12) formed by narrowing the lower end side of the side plate part (10) to approximately the same diameter as the standpipe (2) are connected to the drainage pipe. Provided at the pipe joint (4). The lower standpipe (2) is connected to the collection outlet (12) of the drain pipe joint (4) via a flange joint (13). On the other hand, three water intake ports (14) are formed radially on the outer periphery of the side plate portion (10) at 90 degree intervals;
A horizontal branch pipe (5) is connected to each water intake port (14) through a flange joint (15), and the drain pipe joint (4)
), three horizontal branch pipes (5)... are connected to the common space (
16) and each side branch pipe (5)... is configured to be opened for communication.
また前記上板部（１１）中央に受入管（１７）を一体連
設し、排水管継手（４）の共通空間（１６）中心部に前
記受入管（１７）を立設させ、上方側の立管（２）と受
入管（１７）上端とをフランジ接合部（１８）を介して
連通接続させると共に、前記集合落下口（１２）に対向
させて受入管（１７）下端の流下口（１８）を開口して
いる。Further, a receiving pipe (17) is integrally provided in the center of the upper plate part (11), and the receiving pipe (17) is provided upright in the center of the common space (16) of the drain pipe joint (4), and The standpipe (2) and the upper end of the receiving pipe (17) are connected to each other via a flange joint (18), and a flow-out port (18) at the lower end of the receiving pipe (17) is connected to the upper end of the receiving pipe (17) so as to be opposed to the collective drop port (12). ) is open.
さらに前記共通空間（１６）に配設する受入管（１７）
の中間乃至下端側を四角筒形に形成し、第４図に示す如
く、前記立管（２）及び受入管（１７）内部を流下する
整流（平面視反時計方向の回転）と同一方向に前記横枝
管（５）からの流水を受入管（１７）外周の整流面（２
０）により流出案内させるもので、前記横枝管（５）の
軸芯線に対し整流方向（矢印ａ）に前記整流面（２０）
を変位させ、横枝管（５）からの流水が整流面（２０）
に当って整流と略同−の方向（矢印ｂ）に放出されると
共に、前記受入管（１７）の四角筒部を軸芯線を中心に
整流方向（ａ）に捩って端線形に形成し、受入管（１７
）の鎖線形内外周面で整流移動を助成するように構成し
ている。Furthermore, a receiving pipe (17) arranged in the common space (16)
The middle or lower end side of the is formed into a rectangular cylindrical shape, and as shown in FIG. The water flowing from the side branch pipe (5) is connected to the rectifying surface (2) on the outer periphery of the receiving pipe (17).
0), and the flow regulating surface (20) is directed in the flow regulating direction (arrow a) with respect to the axis of the horizontal branch pipe (5).
is displaced, and the flowing water from the side branch pipe (5) flows to the rectifying surface (20).
At the same time, the square tube part of the receiving tube (17) is twisted in the rectification direction (a) about the axis line to form an end shape. , receiving pipe (17
) is configured to assist rectification movement with the chain-shaped inner and outer circumferential surfaces.
また第５図に示す如く、前記受入管（１７）の下端側を
先細り形状に形成したもので、前記受入管（１７）の四
角形内孔（２１）の角隅部に生じる副流（二次水流）作
用並びに四角形内周面の摩擦抵抗により受入管（１７）
内で流水の流出速度を減速させるものであり、ビル（１
）上層階からの流水が立管（２）内を急速度で落下して
も、前記受入管（１７）上端側円筒部から四角筒部に流
下する段階で減速されると共に、受入管（１７）の四角
筒部内でさらに減速されて流下口（１９）に至らせ、そ
の流水の制動により流水音を低くするように構成してい
る。Further, as shown in FIG. 5, the lower end side of the receiving pipe (17) is formed into a tapered shape, and the side flow (secondary flow) generated at the corner of the square inner hole (21) of the receiving pipe (17) The receiving pipe (17) is
It slows down the flow rate of running water inside a building (1
) Even if the flowing water from the upper floor falls down inside the standpipe (2) at a rapid rate, it is decelerated at the stage of flowing down from the cylindrical part on the upper end side of the receiving pipe (17) to the rectangular cylindrical part. ) is further decelerated within the rectangular cylinder portion to reach the downstream port (19), and the sound of the flowing water is reduced by braking the flowing water.
一方、前記整流面（２０）以外の受入管（１７）−側を
この軸芯方向に開設して空気連通溝（２２）を形成し、
その連通溝（２２）を介して前記共通空間（１６）を受
入管（１７）の側部から内部に連通させるもので、前記
流下口（１９）が流水によって閉塞されて該流下口（１
８）が通気閉塞されても、横枝管（５）内の空気が共通
空間（１Ｂ）及び連通溝（２２）を介して受入管（１７
）中心の伸張通気部に連通されるから、横枝管（５）か
らの流水により圧縮される共通空間（１６）内の高圧空
気が連通溝（２２）から受入管（１７）及び立管（２）
の中心に形成される伸張通気部を介して立管（２）の上
端側に排出され、前記共通空間（１６）内における空気
圧力の変動を緩和して流木性能を向上させるように構成
している。On the other hand, the − side of the receiving pipe (17) other than the rectifying surface (20) is opened in the axial direction to form an air communication groove (22),
The common space (16) is communicated from the side of the receiving pipe (17) to the inside through the communication groove (22), and the outlet (19) is blocked by running water and the outlet (19) is closed by running water.
8) is blocked, the air in the side branch pipe (5) will flow through the common space (1B) and the communication groove (22) into the receiving pipe (17).
) The high-pressure air in the common space (16), which is compressed by the water flowing from the side branch pipe (5), flows from the communication groove (22) to the receiving pipe (17) and the standpipe ( 2)
The air is discharged to the upper end side of the standpipe (2) through an extension vent formed at the center of the pipe, and is configured to alleviate fluctuations in air pressure within the common space (16) and improve driftwood performance. There is.
また前記受入管（１７）の下端側を先細り形状に絞り形
成し、受入管（１７）の流下口（１９）内径をこのＦ方
の集合落下口（１２）内径より若干小さく形成すると共
に、排水管継手（４）の側板部（１０）と集合落下ｃ＋
（１２）との接合段部内面により集合落下面（２３）を
形成したもので、前記流下口（１９）からの流水がこの
拡散作用により広がって前記落下面（２３）に当り、横
枝管（５）からの流水と流下口（１９）からの流水とが
整流方向に移動し乍ら前記落下面（２３）で混合されて
落下口（１２）に落下するように構成している。In addition, the lower end of the receiving pipe (17) is formed into a tapered shape, and the inner diameter of the receiving pipe (17) is formed to be slightly smaller than the inner diameter of the collective falling port (12) on the F side. Side plate part (10) of pipe joint (4) and collective fall c+
(12) forms a collecting falling surface (23) by the inner surface of the joint step, and the water flowing from the outlet (19) spreads due to this diffusion action and hits the falling surface (23), and the horizontal branch pipe The flowing water from (5) and the flowing water from the outlet (19) move in the rectifying direction, mix at the falling surface (23), and fall into the outlet (12).
また第６図に示す如く、前記ベンド管（６）を入口（２
４）と出口（２５）とで約９０度方向変位すべく円孤状
に折１ｆ１１１ヂ形成し、前記ベンド管（６）のノ曲中
心方向にベンド管（６）の内周面（２６）を膨出させ、
人口（２４）及び出口（２５）に比べてベンド管（６）
の中間部内径を大きく形成したもので、前記ベンド管（
６）の外周面（２７）に沿って流下する立管（２）から
の流水量が増大しても、ベンド管（６）中間部の体積増
大により流水性を良好とし、ベンド管（６）内での空気
の閉塞を防ぐと共に、出口（２５）側の内周面（２６）
が上流に一ロすて急勾配となり、立管（２）方向への洗
剤泡などの逆流を前記内周面（２６）の急勾配により阻
止し、跳水現象による水栓作用の発生により洗剤泡など
が逆流するのを防ぐように構成している。Further, as shown in FIG. 6, the bend pipe (6) is connected to the inlet (2).
4) and the outlet (25), the inner peripheral surface (26) of the bent pipe (6) is bent into a circular arc shape so as to be displaced by about 90 degrees, and the inner circumferential surface (26) of the bent pipe (6) is bent in the direction of the center of the bend of the bent pipe (6). bulge out,
Bend pipe (6) compared to population (24) and outlet (25)
The inner diameter of the middle part of the bend pipe (
Even if the amount of water flowing down from the standpipe (2) flowing down along the outer circumferential surface (27) of the bend pipe (6) increases, the increased volume of the middle part of the bend pipe (6) improves water flow. The inner circumferential surface (26) on the outlet (25) side
is steeply sloped upstream, and the steep slope of the inner circumferential surface (26) prevents detergent foam from flowing back toward the vertical pipe (2). The structure is designed to prevent the backflow of such substances.
さらに第１図及び第６図に示す如く、前記減勢継手（８
）の底面側に段部（２８）を設け、その継手（８）の入
口（２９）側に対し出口（３０）側を低く形成し、前記
段部（２８）によって減勢池（３１）を形成し、その減
勢継手（８）内部の減勢池（３１）によって前記ベンド
管（６）からの流水の速度を減速させるもので、前記立
管（２）の全体高さに比例した長さく文）に補助横着（
７）を形成し、ベンド管（Ｅｌ）からの流水と横着（９
）の流水との速度差によって跳水現象が生じる位置に減
勢池（３１）を配置させ、ベンド管（６）の流水速度に
比べて横着（９）の流水速度が遅くても、減勢池（３１
）による流水の減勢作用により。Furthermore, as shown in FIGS. 1 and 6, the force reducing joint (8
) is provided with a step (28) on the bottom side of the joint (8), and the outlet (30) side of the joint (8) is formed lower than the inlet (29) side. The energy reducing joint (8) is formed with a energy reducing pond (31) inside which reduces the speed of water flowing from the bend pipe (6), and has a length proportional to the overall height of the vertical pipe (2). auxiliary side position (writing)
7), and the flowing water from the bend pipe (El) and the side landing (9) are formed.
) is placed at a position where a jump phenomenon occurs due to the speed difference between the water flowing in the bend pipe (6) and the flow water in the bent pipe (6). (31
) due to the energy-reducing effect of running water.
水の跳上がり並びにうねり並びに洗剤泡などの発生を防
ぎ、またベンド管（６）内部の曲り面における空気芯も
適正状態に形成維持されるように構成している。It is constructed to prevent the splashing and undulating of water and the generation of detergent foam, and to maintain the air core on the curved surface inside the bend pipe (6) in an appropriate state.
本実施例は上記の如く構成するもので、前記横枝管（５
）からの流水は受入管（１７）外周の整流面（２０）に
当り、その流木が共通空間（１６）内部で整流となって
集合落下口（１２）から下側の立管（２）に流下すると
共に、上側の立管（２）から受入管（１７）内に流下す
る流水は、受入管（１７）の四角筒形の内孔（２１）で
多段的に減速され、受入Ｉｒ！（１７）下端の流下口（
１９）から集合落下面（２３）を介して集合落下口（１
２）に流下するもので、前記共通空間（１Ｂ）内で空気
が圧縮されたとき、その空気（１８）の高圧空気は受入
管（１７）内部にこの側面の連通溝（２２）を介して排
出される。This embodiment is constructed as described above, and the horizontal branch pipe (5
) The flowing water from the receiving pipe (17) hits the rectifying surface (20) on the outer periphery of the receiving pipe (17), and the driftwood rectifies the flow inside the common space (16) and flows from the collecting outlet (12) to the lower standpipe (2). At the same time, the water flowing down from the upper standpipe (2) into the receiving pipe (17) is decelerated in multiple stages through the rectangular cylindrical inner hole (21) of the receiving pipe (17), and the water flows down into the receiving pipe (17). (17) Flow port at the bottom end (
19) to the collective fall port (1) via the collective fall surface (23).
2), and when the air is compressed in the common space (1B), the high pressure air (18) flows into the receiving pipe (17) through the communication groove (22) on the side thereof. be discharged.
また前記立管（２）下端から流下する流水は、ベンド管
（６）及び補助横着（７）及び減勢継手（８）を介して
横着（８）に流出するもので、ベンド管（６）からの流
水が補助横着（７）を介して減勢継手（８）に流れ込ん
だとき、減勢池（３１）によりその流水が減勢されて横
着（９）に流出するものである。In addition, the water flowing down from the lower end of the standpipe (2) flows into the side fitting (8) via the bend pipe (6), the auxiliary side fitting (7), and the energy reducing joint (8). When flowing water flows into the energy reducing joint (8) via the auxiliary side fitting (7), the energy of the water is reduced by the energy reducing pond (31) and flows out to the side fitting (9).
「発明の効果」
以上実施例から明らかなように本発明は、排水を集合さ
せる立管（２）の下端にベンド管（６）を介して横着（
９）を連結させる構造において、前記ベンド管（θ）と
横着（９）の間に減勢継手（８）を設け、前記ベンド管
（６）からの流水速度を減速させる減勢池（３１）を前
記減勢継手（８）内部に形成したもので、前記立管（２
）から急速度で落下する流水を前記減勢池（３１）に流
下させることにより、立管（２）からの流水の勢いを低
下させて横着（９）内での水の跳上がり及びうねりなど
を阻止でき、横着（９）内での跳水現象並びに洗剤泡な
どの発生を防止できると共に、前記ベンド管（６）内で
形成される空気芯なども適正に維持でき、ベンド管（８
）及び横着（９）の流水性を容易に向上させることがで
きる等の効果を奏するものである。``Effects of the Invention'' As is clear from the above embodiments, the present invention has a bend pipe (6) connected to the lower end of the standpipe (2) that collects wastewater.
9), an energy reducing joint (8) is provided between the bend pipe (θ) and the side fitting (9), and a energy reducing pond (31) is provided to reduce the speed of water flowing from the bend pipe (6). is formed inside the energy reducing joint (8), and the standpipe (2
) by flowing the water falling at a rapid rate into the energy reduction pond (31), the force of the water flowing from the standpipe (2) is reduced and water jumps and swells in the side pipe (9). It is possible to prevent the water splash phenomenon and the generation of detergent foam in the horizontal pipe (9), and also to properly maintain the air core formed in the bend pipe (6).
) and side fitting (9) can be easily improved.
第１図は本発明の一実施例を示す要部の側面図、ｍ２因
は全体説明図、第３図は排水管継手の側面図、第４図は
同平面図、第５図は同部分底面図。
第６図はベンド管及び減勢継手の側面図である。
（２）・・・ 立 管（６） ・・・
ベ ン ド 管（８）・・・ 減
勢継手
（９）・・・ 横 管（３１）・・
・ 減 勢 油出願人 東亜高級継手バル
ブ製造株式会社第 ４ 口Fig. 1 is a side view of essential parts showing one embodiment of the present invention, m2 factor is an overall explanatory view, Fig. 3 is a side view of a drain pipe joint, Fig. 4 is a plan view of the same, and Fig. 5 is the same part. Bottom view. FIG. 6 is a side view of the bend pipe and the energy reducing joint. (2)... Standpipe (6)...
Bend pipe (8)... Force reducing joint (9)... Horizontal pipe (31)...
・Reduced oil applicant Toa High Quality Fittings Valve Manufacturing Co., Ltd. No. 4
Claims (1)
連結させる構造において、前記ベンド管と横着の間に減
勢継手を設け、前記ベンド管からの流水速度を減速させ
る減勢池を前記減勢継手内部に形成したことを特徴とす
る排水管。In a structure in which a side pipe is connected to the lower end of a standpipe that collects wastewater via a bend pipe, an energy-reducing joint is provided between the bend pipe and the side pipe, and an energy-reducing pond is provided to reduce the speed of water flowing from the bend pipe. A drain pipe characterized by being formed inside an energy-reducing joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62078957A JPS63243591A (en) | 1987-03-30 | 1987-03-30 | Drain pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62078957A JPS63243591A (en) | 1987-03-30 | 1987-03-30 | Drain pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63243591A true JPS63243591A (en) | 1988-10-11 |
| JPH0361877B2 JPH0361877B2 (en) | 1991-09-24 |
Family
ID=13676372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62078957A Granted JPS63243591A (en) | 1987-03-30 | 1987-03-30 | Drain pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63243591A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019035287A (en) * | 2017-08-18 | 2019-03-07 | 丸一株式会社 | Drainage joint |
| WO2019051532A1 (en) * | 2017-09-14 | 2019-03-21 | Buildom Pty Ltd | Building units and wastewater drainage |
| JP2020020195A (en) * | 2018-08-02 | 2020-02-06 | 積水化学工業株式会社 | Rainwater drainage device |
| JP2020020173A (en) * | 2018-08-01 | 2020-02-06 | 積水化学工業株式会社 | Rainwater drainage device |
| JP2020133228A (en) * | 2019-02-19 | 2020-08-31 | 積水化学工業株式会社 | Eccentric increaser and piping structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5814532A (en) * | 1981-07-17 | 1983-01-27 | Fujitsu Ltd | Manufacture of ion beam exposing mask |
-
1987
- 1987-03-30 JP JP62078957A patent/JPS63243591A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5814532A (en) * | 1981-07-17 | 1983-01-27 | Fujitsu Ltd | Manufacture of ion beam exposing mask |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019035287A (en) * | 2017-08-18 | 2019-03-07 | 丸一株式会社 | Drainage joint |
| JP2021169769A (en) * | 2017-08-18 | 2021-10-28 | 丸一株式会社 | Drain joint provided with perforated plate member |
| WO2019051532A1 (en) * | 2017-09-14 | 2019-03-21 | Buildom Pty Ltd | Building units and wastewater drainage |
| JP2020020173A (en) * | 2018-08-01 | 2020-02-06 | 積水化学工業株式会社 | Rainwater drainage device |
| JP2020020195A (en) * | 2018-08-02 | 2020-02-06 | 積水化学工業株式会社 | Rainwater drainage device |
| JP2020133228A (en) * | 2019-02-19 | 2020-08-31 | 積水化学工業株式会社 | Eccentric increaser and piping structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0361877B2 (en) | 1991-09-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |