JP2021042573A

JP2021042573A - Joint member and drainage piping using joint member

Info

Publication number: JP2021042573A
Application number: JP2019164984A
Authority: JP
Inventors: 大輔服部; Daisuke Hattori; 繁和岡内; Shigekazu Okauchi
Original assignee: Maruichi Corp
Current assignee: Maruichi Corp
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2021-03-18

Abstract

To provide a joint member which, in drainage piping for treating a solid-liquid mixture, can improve flow-down performance/transport performance of the solid-liquid mixture in the drainage piping even if a proportion of a liquid component in the solid-liquid mixture decreases, and can prevent a solid component in the solid-liquid mixture from stagnation to enable wastewater treatment without any trouble, by ingenuity, and to provide drainage piping using the joint member.SOLUTION: A joint member 1 of piping for treating a solid-liquid mixture is composed of a main pipe part D installed with a drainage gradient along a horizontal plane and a branch pipe part 2b provided on a side surface of the main pipe part, and the branch pipe part is configured to be connected to the main pipe part from diagonally above the main pipe part in an axial direction view and to be connected to an upstream side of the main pipe part in a plan view at an acute angle.SELECTED DRAWING: Figure 2

Description

本発明は、排水配管に用いられる継手部材、特にトイレ室などの衛生設備を使用する場合に生じる固体と液体の混合物、いわゆる固液混合物を通過させる排水配管に用いられる継手部材と、該継手部材を用いた排水配管に関するものである。 The present invention relates to a joint member used for a drainage pipe, particularly a joint member used for a drainage pipe through which a mixture of solid and liquid generated when sanitary equipment such as a toilet room is used, a so-called solid-liquid mixture, and the joint member. It is related to the drainage pipe using.

従来より、上記トイレ室などの衛生設備には、大便器のように、使用することで大便やトイレットペーパー等の固体と、洗浄水などの液体の混合物、いわゆる固液混合物を生じさせる衛生設備機器が知られている。これらの衛生設備機器を使用することで生じた固液混合物を下水道側に排出処理するために、トイレ室など衛生設備には排水配管が備えられている。
特許文献１には、上記したような固液混合物を処理するための衛生設備機器としての大便器と、該大便器からの汚物を固液混合物として下水側に処理するための排水配管が記載されている。
衛生設備機器としての大便器は、便鉢と、該便鉢に排泄された大便やトイレットペーパー等の固体成分と、洗浄水などの液体成分を、固液混合物として排出する正円形状を成す便器排出口を側面に備えて構成される。
排水配管は、以下に記載する、円筒管と、継手部材と、から構成される。
円筒管は円筒形状の部材であって、後述する複数の継手部材の本体部端部同士や、継手部材と縦配管とを連結するように接続される。
継手部材は、以下に記載する、継手本体及び蛇腹管から構成される。
継手本体は、両端が開口した筒状体の本体部と、該本体部の側面に開口した、ガイド部を備えた枝管部と、から構成される。枝管部は、側面視本体部の軸方向に沿って長軸を備えた略楕円形状を備えてなる。ガイド部は、枝管部の端部であって、平面視長軸の端部となる位置から、本体部に向かうほど長軸の他端方向に傾斜する傾斜面から構成される。
蛇腹管は、蛇腹形状を備えた筒状体であって、ゴム等の弾性素材からなり、上流側端部は便器排出口に合致する正円形状を、下流側端部は枝管部端部に合致する略楕円形状を、それぞれ備えてなる。また、上流側端部に比べ下流側端部は幅広となっているが、対称形状ではなく、施工完了時の平面視において、蛇腹管の一方の側面と下流側端部とが略垂直となる偏心した形状を備えてなる。
尚、この蛇腹管の、下流側端部と略垂直となる側の側面が、施工完了時に継手本体のガイド部側に連続するようにして、枝管部は蛇腹管と接続される。 Conventionally, sanitary equipment such as the toilet room is a sanitary equipment that, like a toilet bowl, produces a mixture of a solid such as stool or toilet paper and a liquid such as washing water, a so-called solid-liquid mixture. It has been known. Drainage pipes are provided in sanitary facilities such as toilet rooms in order to discharge the solid-liquid mixture produced by using these sanitary facilities to the sewer side.
Patent Document 1 describes a toilet bowl as a sanitary equipment for treating a solid-liquid mixture as described above, and a drainage pipe for treating filth from the toilet bowl as a solid-liquid mixture on the sewage side. ing.
Toilet bowls as sanitary equipment are circular toilet bowls that discharge solid components such as stool and toilet paper excreted in the toilet bowl and liquid components such as washing water as a solid-liquid mixture. It is configured with an outlet on the side.
The drainage pipe is composed of a cylindrical pipe and a joint member described below.
The cylindrical pipe is a cylindrical member, and is connected so as to connect the end portions of the main body portions of a plurality of joint members, which will be described later, or the joint member and the vertical pipe.
The joint member is composed of the joint body and the bellows pipe described below.
The joint main body is composed of a main body portion of a tubular body having both ends open, and a branch pipe portion having a guide portion open on the side surface of the main body portion. The branch pipe portion has a substantially elliptical shape having a long axis along the axial direction of the side view main body portion. The guide portion is an end portion of the branch pipe portion, and is composed of an inclined surface that is inclined from a position that is an end portion of the long axis in a plan view toward the other end of the long axis toward the main body portion.
The bellows tube is a tubular body with a bellows shape and is made of an elastic material such as rubber. The upstream end has a perfect circular shape that matches the toilet bowl outlet, and the downstream end has a branch tube end. Each has a substantially elliptical shape that matches. In addition, although the downstream end is wider than the upstream end, it is not symmetrical and the one side surface of the bellows tube and the downstream end are substantially vertical in the plan view at the completion of construction. It has an eccentric shape.
The branch pipe portion is connected to the bellows pipe so that the side surface of the bellows pipe on the side substantially perpendicular to the downstream end portion is continuous with the guide portion side of the joint body when the construction is completed.

上記継手部材を採用した衛生設備機器とその排水配管は、以下のように構成される。
排水配管は、継手部材の本体部の端部同士を、円筒管にて接続して構成される。この際に、継手部材は、ガイド部がある側を上流側とするように構成される。また、特許文献１には特に記載されていないが、継手部材の、本体部の最も上流側の端部には、通常点検口部材を取り付け、管詰まりなどが生じた場合には、この点検口部材に備えられた開口（点検口）を介して排水配管内部の点検やメンテナンス作業を行うことができる。
トイレ室などの衛生設備において、床面に排水配管、また衛生設備機器としての大便器を設置する際に、大便器は複数を並べて配置される。これに対し、排水配管は、継手部材の本体部と円筒管とを接続することで形成される排水配管の主管部が、大便器に沿って配置され、支持金具によって床面上に設置される。この時、主管部は下流側に向かって排水に必要な若干の下り勾配を備えて設置される。また排水配管の継手部材は、各大便器にそれぞれ対応する位置に複数配置されてなり、継手部材の蛇腹管の上流側端部は、大便器の便器排出口に接続される。継手部材の蛇腹管は、蛇腹を備えた弾性素材からなるため、大便器の位置に対して、便器排出口の位置に、水平方向または垂直方向に若干の位置ずれがあったとしても、蛇腹管を伸縮する等して問題なく接続することができる。 Sanitary equipment and its drainage pipes that employ the above joint members are configured as follows.
The drainage pipe is configured by connecting the ends of the main body of the joint member with a cylindrical pipe. At this time, the joint member is configured so that the side where the guide portion is located is the upstream side. Further, although not particularly described in Patent Document 1, a normal inspection port member is attached to the most upstream end of the main body of the joint member, and if a pipe is clogged, this inspection port is used. The inside of the drainage pipe can be inspected and maintained through the opening (inspection port) provided in the member.
In sanitary facilities such as toilet rooms, when installing drainage pipes on the floor and toilet bowls as sanitary equipment, a plurality of toilet bowls are arranged side by side. On the other hand, in the drainage pipe, the main pipe part of the drainage pipe formed by connecting the main body part of the joint member and the cylindrical pipe is arranged along the toilet bowl and installed on the floor surface by the support metal fittings. .. At this time, the main pipe portion is installed with a slight downward slope required for drainage toward the downstream side. Further, a plurality of joint members of the drainage pipe are arranged at positions corresponding to each toilet bowl, and the upstream end of the bellows pipe of the joint member is connected to the toilet bowl discharge port of the toilet bowl. Since the bellows tube of the joint member is made of an elastic material with a bellows, the bellows tube is slightly displaced in the horizontal or vertical direction with respect to the position of the toilet bowl. Can be connected without problems by expanding and contracting.

大便器が使用されて便器排出口から大便やトイレットペーパーなどの汚物が洗浄水と共に固液混合物として排出されると、固液混合物が蛇腹管から継手部材を介して主管部内に流れ、主管部に備えられた排水勾配によって下流側に排出される。蛇腹管から枝管部を介して本体部に汚物が流れる際には、ガイド部によって汚物が下流側に誘導され、汚物がなるべく容易に下流側に排出されるように構成されてなる。 When a toilet bowl is used and filth such as stool and toilet paper is discharged from the toilet bowl outlet as a solid-liquid mixture together with washing water, the solid-liquid mixture flows from the bellows pipe into the main pipe through the joint member and reaches the main pipe. It is discharged downstream by the provided drainage gradient. When filth flows from the bellows pipe to the main body through the branch pipe, the guide portion guides the filth to the downstream side, and the filth is discharged to the downstream side as easily as possible.

特開２０１７−８２４８１号公報Japanese Unexamined Patent Publication No. 2017-82481

上記した大便器などの衛生設備機器の場合、生じた大便やトイレットペーパーなど固体成分からなる汚物を排出処理するため、液体成分である洗浄水を一回の使用ごとに所定量用意し、固体成分と同時に一度に流して固液混合物とし、排水配管を流下させることで、下水側に排出を行っている。しかし近年、節水意識の高まりから、大便器の一回の使用ごとの洗浄水の所定量を減らす節水式大便器が多く使用されるようになり、固液混合物における液体成分の比率また絶対量が減少するようになった。このため、排水時における、固液混合物中の固体成分の搬送力が低下してしまう、という問題が発生している。
トイレ室などの衛生設備の排水配管としては、大便器を設置した床面の更に下側に排水配管を設置して排水を行う床下配管と、大便器を設置した床面上に排水配管を設置して排水を行う床上配管とがあるが、この内、床下配管の場合には、床上に設置された大便器など衛生機器部材と排水配管の間に充分な高低差があり、固液混合物が勢いよく流れるため、多少搬送力が減少しても固体成分が停滞することは起こりにくい。
しかし、床上配管の場合には、同じ床上に設置された大便器など衛生機器部材と排水配管、特に主管部との間に高低差があまり無く、固液混合物の排水の勢いが弱いため、搬送力が減少すると排水配管内に固体成分が停滞してしまう、といった問題が発生してしまう。
特許文献１に記載の発明では、ガイド部を設けると共に、本体部と円筒管の接続部分の段差を、排水の流下を妨げないように工夫することで、固体成分の停滞を生じにくいものとしているが、元々の固液混合物の液体成分の減少による固液混合物の流下の勢い不足に対しては有効な解決方法であるとは言えないものであった。
また、平面視において、継手部材の枝管部、即ち蛇腹管端部から主管部までの流路には、主管部の中心軸に対して垂直となる流れのまま、主管部に到達できる流路部分が存在する。この部分を固液混合物が流下した場合、固液混合物がそのまま主管部の内側面に衝突し、周囲に固液混合物が飛散する。
上記のような衝突により、固液混合物の一部、特に固体成分が枝管部よりも上流側の主管部内に飛散または逆流して停滞すると、衝突があった枝管部に接続された大便器よりも上流側にある別の大便器が使用されない限り、停滞した固体成分が排出されることが無くなる。しかしながら、必ずしも上流側の大便器が迅速に使用されるとは限らず、場合によっては長期間にわたり固体成分が停滞し続ける場合もある。特に、最も上流側の継手部材において上記のような飛散また逆流が発生すると、より上流側からの固液混合物の流れは存在しないため、固体成分はそこに停滞したまま下流側に流れることがなくなる。このようにして固定成分が留まり続けると、不衛生であり、また点検やメンテナンスのために点検口を開口する際に、これら汚物が配管外に漏れて周囲を汚染したり、作業者に不快な思いをさせる、という問題があった。
本発明は上記問題点に鑑み発明されたものであって、固液混合物を処理する配管において、継手部材の工夫により、固液混合物の液体成分の比率が減少しても排水配管における固液混合物の流下性能・搬送性能を向上させ、固液混合物中の固体成分の停滞を防止し、支障なく排水処理を行えるようにするものである。 In the case of sanitary equipment such as the above-mentioned toilet bowl, in order to discharge the generated stool and filth consisting of solid components such as toilet paper, a predetermined amount of washing water, which is a liquid component, is prepared for each use, and the solid component is prepared. At the same time, it is drained to the sewage side by flowing it all at once to make a solid-liquid mixture and letting the drainage pipe flow down. However, in recent years, due to the growing awareness of water saving, water-saving toilets that reduce the prescribed amount of washing water for each use of the toilet have come to be widely used, and the ratio or absolute amount of liquid components in the solid-liquid mixture has increased. It came to decrease. For this reason, there is a problem that the carrying capacity of the solid component in the solid-liquid mixture is lowered at the time of drainage.
As drainage pipes for sanitary facilities such as toilet rooms, drainage pipes are installed below the floor where the toilet bowl is installed to drain water, and drainage pipes are installed on the floor where the toilet bowl is installed. There is an on-floor pipe that drains water, but in the case of the under-floor pipe, there is a sufficient height difference between the sanitary equipment members such as toilet bowls installed on the floor and the drain pipe, and the solid-liquid mixture is mixed. Since it flows vigorously, it is unlikely that the solid component will stagnate even if the carrying capacity is slightly reduced.
However, in the case of on-floor piping, there is not much difference in elevation between sanitary equipment members such as toilet bowls installed on the same floor and drainage piping, especially the main pipe, and the drainage momentum of the solid-liquid mixture is weak, so it is transported. When the force is reduced, problems such as stagnation of solid components in the drainage pipe occur.
In the invention described in Patent Document 1, the guide portion is provided and the step between the main body portion and the connecting portion of the cylindrical pipe is devised so as not to obstruct the flow of drainage, so that the solid component is less likely to stagnate. However, it cannot be said that it is an effective solution to the lack of momentum of the flow of the solid-liquid mixture due to the decrease of the liquid component of the original solid-liquid mixture.
Further, in a plan view, the branch pipe portion of the joint member, that is, the flow path from the bellows pipe end portion to the main pipe portion, can reach the main pipe portion with the flow perpendicular to the central axis of the main pipe portion. There is a part. When the solid-liquid mixture flows down this portion, the solid-liquid mixture collides with the inner surface of the main pipe portion as it is, and the solid-liquid mixture scatters around.
Due to the above collision, when a part of the solid-liquid mixture, especially the solid component, scatters or flows back into the main pipe on the upstream side of the branch pipe and stagnates, the toilet bowl connected to the branch pipe where the collision occurred. Unless another toilet bowl on the upstream side is used, the stagnant solid component will not be discharged. However, the toilet bowl on the upstream side is not always used quickly, and in some cases, the solid component may continue to stagnate for a long period of time. In particular, when the above-mentioned scattering or backflow occurs in the most upstream joint member, the solid-liquid mixture does not flow from the upstream side, so that the solid component does not flow to the downstream side while staying there. .. If the fixed components continue to stay in this way, it is unsanitary, and when opening the inspection port for inspection or maintenance, these filth leaks out of the pipe and contaminates the surroundings, which is unpleasant for the operator. There was a problem that made me think.
The present invention has been invented in view of the above problems, and even if the ratio of the liquid component of the solid-liquid mixture is reduced by devising the joint member in the pipe for treating the solid-liquid mixture, the solid-liquid mixture in the drainage pipe It improves the flow-down performance and transport performance of the solid-liquid mixture, prevents the stagnation of solid components in the solid-liquid mixture, and enables wastewater treatment without any trouble.

請求項１に記載の本発明は、固液混合物を処理する配管の継手部材であって、
水平面に沿って排水勾配を備えて設置される主管部と、主管部の側面に備えられる枝管部とからなり、枝管部は、主管部に対して、主管部の軸方向視斜め上方から接続されると共に、平面視主管部の上流側に対して鋭角にて接続されることを特徴とする継手部材である。 The present invention according to claim 1 is a joint member of a pipe for treating a solid-liquid mixture.
It consists of a main pipe part installed with a drainage gradient along the horizontal plane and a branch pipe part provided on the side surface of the main pipe part. It is a joint member characterized in that it is connected and is connected at an acute angle to the upstream side of the main pipe portion in a plan view.

請求項２に記載の本発明は、固液混合物を処理する配管の継手部材であって、
水平面に沿って排水勾配を備えて設置される主管部と、主管部の側面に備えられる枝管部とからなり、枝管部は、主管部に対して、主管部の軸方向視斜め上方から少なくとも９０度の範囲の円弧を備えて主管部に接続さると共に、平面視主管部の上流側に対して鋭角にて接続されることを特徴とする継手部材である。 The present invention according to claim 2 is a joint member of a pipe for treating a solid-liquid mixture.
It consists of a main pipe part installed with a drainage gradient along the horizontal plane and a branch pipe part provided on the side surface of the main pipe part. It is a joint member characterized in that it has an arc in a range of at least 90 degrees and is connected to the main pipe portion and is connected to the upstream side of the main pipe portion in a plan view at an acute angle.

請求項３に記載の本発明は、上記継手部材において、
枝管部は、平面視主管部の上流側に対して４５度より小さい角度にて接続されることを特徴とする請求項１または請求項２に記載の継手部材である。 The present invention according to claim 3 is the above-mentioned joint member.
The joint member according to claim 1 or 2, wherein the branch pipe portion is connected to the upstream side of the main pipe portion in a plan view at an angle smaller than 45 degrees.

請求項４に記載の本発明は、上記継手部材において、
枝管部から流れる固液混合物が、全て下流方向に向かうように角度を有して主管部に合流するように主管部と枝管部を構成してなることを特徴とする請求項１乃至請求項３のいずれか一つに記載の継手部材である。 The present invention according to claim 4 is the above-mentioned joint member.
Claims 1 to claim 1, wherein the main pipe portion and the branch pipe portion are formed so that all the solid-liquid mixture flowing from the branch pipe portion joins the main pipe portion at an angle so as to go in the downstream direction. Item 2. The joint member according to any one of item 3.

請求項５に記載の本発明は、枝管部を、配管部材を介して衛生機器の排出口に接続することを特徴とする、請求項１乃至請求項４のいずれか一つに記載の継手部材である。 The joint according to any one of claims 1 to 4, wherein the branch pipe portion is connected to a discharge port of a sanitary device via a piping member. It is a member.

請求項６に記載の本発明は、枝管部と衛生機器の排出口を接続する配管部材の少なくとも一つが、可撓性を備えた弾性素材から構成されてなることを特徴とする、請求項５に記載の継手部材である。 The present invention according to claim 6 is characterized in that at least one of the piping members connecting the branch pipe portion and the discharge port of the sanitary equipment is made of an elastic material having flexibility. 5 is the joint member.

請求項７に記載の本発明は、枝管部が衛生機器である大便器に接続されてなることを特徴とする、請求項１乃至請求項６のいずれか一つに記載の継手部材である。 The joint member according to claim 7, wherein the branch pipe portion is connected to a toilet bowl, which is a sanitary device, according to any one of claims 1 to 6. ..

請求項８に記載の本発明は、上記継手部材を用いた排水配管において、
枝管部の上流側の配管は、主管部の上方を通過した上で、反転して枝管部に接続するように配置されたことを特徴とする請求項１乃至請求項７のいずれか一つに記載の継手部材を用いた排水配管である。 The present invention according to claim 8 is in a drainage pipe using the above-mentioned joint member.
Any one of claims 1 to 7, wherein the pipe on the upstream side of the branch pipe portion is arranged so as to be inverted and connected to the branch pipe portion after passing above the main pipe portion. It is a drainage pipe using the joint member described in 1.

請求項９に記載の本発明は、上記継手部材を用いた排水配管において、
継手部材を複数接続すると共に、継手部材の本体部が複数直列状に接続されてなることを特徴とする、請求項１乃至請求項８のいずれか一つに記載の継手部材を用いた排水配管である。 The present invention according to claim 9 is a drainage pipe using the above-mentioned joint member.
A drainage pipe using the joint member according to any one of claims 1 to 8, wherein a plurality of joint members are connected and a plurality of main bodies of the joint members are connected in series. Is.

請求項１０に記載の本発明は、上記継手部材を用いた排水配管において、
複数の排水継手の本体部を接続して構成した主管部に排水勾配を備えて配管すると共に、枝管部が主管部の排水勾配に合わせて軸方向視互いに若干異なる角度を成すように接続されてなることを特徴とする、請求項９に記載の継手部材を用いた排水配管である。 The present invention according to claim 10 is a drainage pipe using the above-mentioned joint member.
The main pipe section, which is formed by connecting the main bodies of a plurality of drainage joints, is piped with a drainage gradient, and the branch pipe sections are connected so as to form slightly different angles in the axial direction according to the drainage gradient of the main pipe section. It is a drainage pipe using the joint member according to claim 9, which is characterized by the above.

請求項１、請求項２に記載の発明では、固液混合物が流入する枝管部を主管部の軸方向時斜め上方に配置して合流させる、または上方から円弧に沿って主管部に合流させることで、位置エネルギーを利用して固液混合物に流下の勢いを与えると共に、枝管部が平面視主管部の上流側に対して鋭角にて接続されることで、固液混合物の流下の勢いを減じることなく主管部を流下させることができ、管詰まり等の発生を防止することができる。
特に請求項３に記載したように、枝管部を、平面視主管部の上流側に対して４５度より小さい角度にて接続することで、管詰まり等の発生を防止する効果を高めることができる。
請求項４に記載の発明では、枝管部からの固液混合物が、必ず本体部に対して傾斜して合流するため、固液混合物の飛散または逆流（バックブロー）を防止することができる。
請求項５に記載の発明では、枝管部を、配管部材を介して衛生機器に接続するようにしたことで、施工の際に衛生機器と枝管部が離間した位置にあっても問題なく接続を行うことができ施工性が向上する。
請求項６に記載の発明では、枝管部と衛生機器の排出口を接続する配管部材の少なくとも一つに可撓性を含む部材を採用したことで、施工の際に多少の位置ずれなどを容易に解消でき施工性が向上する。
請求項７、請求項９、請求項１０に記載の発明では、排水配管の構造を明確なものとすることができる。
請求項８に記載の発明では、配管レイアウトをコンパクトなものとすることができる。 In the inventions according to claims 1 and 2, the branch pipe portion into which the solid-liquid mixture flows is arranged diagonally upward in the axial direction of the main pipe portion and merged, or merges with the main pipe portion from above along an arc. As a result, the potential energy is used to give the solid-liquid mixture the momentum of the flow down, and the branch pipe part is connected at a sharp angle to the upstream side of the main pipe part in the plan view, so that the momentum of the flow down of the solid-liquid mixture is given. It is possible to let the main pipe portion flow down without reducing the amount of water, and it is possible to prevent the occurrence of pipe clogging and the like.
In particular, as described in claim 3, by connecting the branch pipe portion at an angle smaller than 45 degrees with respect to the upstream side of the main pipe portion in a plan view, it is possible to enhance the effect of preventing the occurrence of pipe clogging or the like. it can.
In the invention according to claim 4, since the solid-liquid mixture from the branch pipe portion always merges at an angle with respect to the main body portion, it is possible to prevent the solid-liquid mixture from scattering or backflow (back blow).
In the invention according to claim 5, since the branch pipe portion is connected to the sanitary equipment via the piping member, there is no problem even if the sanitary equipment and the branch pipe portion are separated from each other during construction. Connection can be made and workability is improved.
In the invention according to claim 6, by adopting a flexible member for at least one of the piping members connecting the branch pipe portion and the discharge port of the sanitary equipment, some misalignment may occur during construction. It can be easily eliminated and workability is improved.
In the invention according to claim 7, claim 9, and claim 10, the structure of the drainage pipe can be clarified.
In the invention according to claim 8, the piping layout can be made compact.

第一実施例の施工状態を示す平面図である。It is a top view which shows the construction state of 1st Example. 第一実施例の最も上流側の排水配管を示す、一部を切欠きした参考図である。It is a reference figure which cutout a part which shows the drainage pipe on the most upstream side of 1st Example. 図２の部材構成を示す参考図である。It is a reference figure which shows the member structure of FIG. 図２のＡ−Ａ線にて排水配管を切欠きした断面図である。It is sectional drawing which cut out the drainage pipe by line AA of FIG. 第一実施例の継手本体の、一部を切欠きした参考図である。It is a reference figure which cut out a part of the joint body of 1st Example. 第一実施例の配管の実験データを示すグラフである。It is a graph which shows the experimental data of the piping of 1st Example. 第二実施例の施工状態を示す平面図である。It is a top view which shows the construction state of the 2nd Example. 第二実施例の最も上流側の排水配管を示す、一部を切欠きした参考図である。It is a reference figure which cutout a part which shows the drainage pipe on the most upstream side of the 2nd Example. 図８の部材構成を示す参考図である。It is a reference figure which shows the member structure of FIG. 図８のＢ−Ｂ線にて排水配管を切欠きした断面図である。It is sectional drawing which cut out the drainage pipe in line BB of FIG. 第二実施例の継手本体の、一部を切欠きした参考図である。It is a reference figure which cut out a part of the joint body of the 2nd Example. 第二実施例の配管の実験データを示すグラフである。It is a graph which shows the experimental data of the piping of the 2nd Example. 第三実施例の施工状態を示す平面図である。It is a top view which shows the construction state of the 3rd Example. 第三実施例の最も上流側の排水配管を示す、一部を切欠きした参考図である。It is a reference figure which cutout a part which shows the drainage pipe on the most upstream side of the 3rd Example. 図１２の部材構成を示す参考図である。It is a reference figure which shows the member structure of FIG. 図１１のＣ１−Ｃ１線にて排水配管を切欠きした断面図である。It is sectional drawing which cut out the drainage pipe in line C1-C1 of FIG. 図１１のＣ２−Ｃ２線にて排水配管を切欠きした断面図である。It is sectional drawing which cut out the drainage pipe by the C2-C2 line of FIG. 第三実施例の継手本体の、一部を切欠きした参考図である。It is a reference figure which cut out a part of the joint body of 3rd Example. 第三実施例の配管の実験データを示すグラフである。It is a graph which shows the experimental data of the piping of the 3rd Example. 従来例の配管の実験データを示すグラフである。It is a graph which shows the experimental data of the piping of the conventional example.

以下に、本発明の第一実施例を、図面を参照しつつ説明する。図１乃至図５にて図示した、本発明の第一実施例は、衛生設備機器である複数の大便器Ｔを備えた、衛生設備である公共用のトイレ室と、該トイレ室の大便器Ｔの使用により、大便やトイレットペーパー等の汚物からなる固体成分と、それらを流下させるための洗浄水からなる液体成分とが混合した固液混合物を、下水側に処理するための排水配管と、からなる。
衛生設備としてのトイレ室は、床面Ｆと、該床面Ｆ上に並んで配置された複数の大便器Ｔと、トイレ室の階層を貫いて設けられ、排水配管に接続されて排水配管からの排水や固液混合物を下水側に排出するための縦配管Ｖを備えてなる。
衛生設備機器としての大便器Ｔは、便鉢Ｔ１と、該便鉢Ｔ１に排泄された大便やトイレットペーパー等の汚物からなる固体成分と、それらを流下させるための洗浄水からなる液体成分とが混合した固液混合物を排出する、正円形状を成す便器排出口Ｔ２を側面に備えて構成される。本実施例において、大便器Ｔは、図１に示したように、トイレ室内に５台並べて設置されてなる。各大便器Ｔは、等間隔にて便器排出口Ｔ２が排水配管の方を向くように配置される。
排水配管は、以下に記載する、円筒管５と、継手部材1と、点検口部材６と、から構成される。また、継手部材1の本体部２ａと円筒管５によって、排水配管の主管部Ｄが構成される。
円筒管５は円筒形状の部材であって、複数用意され、後述する複数の継手部材1の本体部２ａ端部を連結するように接続される。
継手部材1は、以下に記載する、継手本体２、接続管３、及び蛇腹管４から構成される。本実施例では、継手部材1は、大便器Ｔの数に合わせて５つ使用される。
継手本体２は、図５に示したように、両端が開口した円筒状の本体部２ａと、該本体部２ａの側面に設けられた枝管部２ｂと、から構成される。ここで、枝管部２ｂは、本体部２ａに対して以下のように配置構成されている。
施工完了時、枝管部２ｂは、主管部Ｄに対して、平面視本体部２ａの中心軸の上流側に対して約４５度の角度を成して構成されてなる。また、上記継手本体２において、施工完了時の平面視における、本体部２ａの軸に対して垂直であって、本体部２ａと枝管部２ｂとの接続箇所の上流側端部を通過する仮想の線（図５のＬ１にて示した線）は、枝管部２ｂの、本体部２ａに対し傾斜した内面部分に交差してなる。
接続管３は継手本体２の枝管部２ｂと、蛇腹管４を介して大便器Ｔの便器排出口Ｔ２の間を接続する配管であって、直管部３ａと、施工完了時平面視両端が約１３０度の角度となる円弧部３ｂとからなり、円弧部３ｂが蛇腹管４と枝管部２ｂとの高低差を調整しつつ、平面視略円弧を描きつつ接線方向となるように枝管部２ｂに接続される。
蛇腹管４は、蛇腹形状を備えた円筒形状の部材であって、ゴム等の弾性素材からなり、便器排出口Ｔ２と接続管３の直管部３ａ側端部を、若干の位置ずれを調整しつつ接続する。
尚、上記した各部材の内、接続管３と継手部材1の枝管部２ｂの内径はほぼ同径であり、また円筒管５と継手部材1の本体部２ａの内径もほぼ同径である。また、本体部２ａの内径は枝管部２ｂの内径よりも大径である。
点検口部材６は、最も上流側に配置される継手部材1の、本体部２ａの上流側端部に取り付けられる部材であって、雌ネジを備えた開口からなる点検口６ｂを備えた点検口本体６ａと、点検口６ｂを閉塞する蓋体である、雄ネジを備えたキャップ部材６ｃと、から構成される。
他に、特に図示・詳述しないが、排水配管を排水勾配のために適切な高さ位置を備えて配置固定する支持金具を備えてなる。 Hereinafter, the first embodiment of the present invention will be described with reference to the drawings. In the first embodiment of the present invention illustrated in FIGS. 1 to 5, a public toilet room, which is a sanitary facility, equipped with a plurality of toilet bowls T, which are sanitary equipment devices, and a toilet bowl in the toilet room. By using T, a drainage pipe for treating the solid-liquid mixture, which is a mixture of a solid component consisting of filth such as stool and toilet paper and a liquid component consisting of washing water for flowing them down, on the sewage side. Consists of.
The toilet room as a sanitary facility is provided through the floor surface F, a plurality of toilet bowls T arranged side by side on the floor surface F, and the hierarchy of the toilet room, and is connected to the drainage pipe from the drainage pipe. It is provided with a vertical pipe V for discharging the drainage and the solid-liquid mixture to the sewage side.
The toilet bowl T as a sanitary equipment includes a toilet bowl T1, a solid component consisting of stool and toilet paper excreted in the toilet bowl T1, and a liquid component consisting of washing water for flowing them down. A toilet bowl discharge port T2 having a perfect circular shape for discharging the mixed solid-liquid mixture is provided on the side surface. In this embodiment, as shown in FIG. 1, five toilet bowls T are installed side by side in the toilet room. Each toilet bowl T is arranged so that the toilet bowl discharge port T2 faces the drainage pipe at equal intervals.
The drainage pipe is composed of a cylindrical pipe 5, a joint member 1, and an inspection port member 6, which are described below. Further, the main body portion 2a of the joint member 1 and the cylindrical pipe 5 form a main pipe portion D of the drainage pipe.
A plurality of cylindrical pipes 5 are prepared and are connected so as to connect the end portions of the main body 2a of the plurality of joint members 1 to be described later.
The joint member 1 is composed of a joint body 2, a connecting pipe 3, and a bellows pipe 4, which are described below. In this embodiment, five joint members 1 are used according to the number of toilet bowls T.
As shown in FIG. 5, the joint main body 2 is composed of a cylindrical main body portion 2a having both ends open and a branch pipe portion 2b provided on the side surface of the main body portion 2a. Here, the branch pipe portion 2b is arranged and configured with respect to the main body portion 2a as follows.
When the construction is completed, the branch pipe portion 2b is configured to form an angle of about 45 degrees with respect to the main pipe portion D with respect to the upstream side of the central axis of the main body portion 2a in a plan view. Further, in the joint main body 2, a virtual portion that is perpendicular to the axis of the main body portion 2a and passes through the upstream end portion of the connection portion between the main body portion 2a and the branch pipe portion 2b in a plan view at the completion of construction. (Line shown by L1 in FIG. 5) intersects the inner surface portion of the branch pipe portion 2b that is inclined with respect to the main body portion 2a.
The connection pipe 3 is a pipe that connects the branch pipe portion 2b of the joint body 2 and the toilet bowl discharge port T2 of the toilet bowl T via the bellows pipe 4, and is a pipe that connects the straight pipe portion 3a and both ends in a plan view when the construction is completed. Is composed of an arc portion 3b having an angle of about 130 degrees, and the arc portion 3b is branched so as to be in the tangential direction while drawing a substantially arc in a plan view while adjusting the height difference between the bellows pipe 4 and the branch pipe portion 2b. It is connected to the pipe portion 2b.
The bellows tube 4 is a cylindrical member having a bellows shape, is made of an elastic material such as rubber, and adjusts a slight misalignment between the toilet bowl discharge port T2 and the straight pipe portion 3a side end of the connecting pipe 3. Connect while doing.
Of the above-mentioned members, the inner diameters of the connecting pipe 3 and the branch pipe portion 2b of the joint member 1 are substantially the same diameter, and the inner diameters of the cylindrical pipe 5 and the main body portion 2a of the joint member 1 are also substantially the same diameter. .. Further, the inner diameter of the main body portion 2a is larger than the inner diameter of the branch pipe portion 2b.
The inspection port member 6 is a member attached to the upstream end of the main body 2a of the joint member 1 arranged on the most upstream side, and has an inspection port 6b having an opening with a female screw. It is composed of a main body 6a and a cap member 6c provided with a male screw, which is a lid that closes the inspection port 6b.
In addition, although not particularly illustrated or detailed, the drainage pipe is provided with a support fitting for arranging and fixing the drainage pipe at an appropriate height position for the drainage gradient.

上記のように構成された各部材は、以下のようにして施工される。
尚、特に記載しないが、各部材の接続箇所は、接着やパッキング、締付バンド等を利用し、漏水などが生じないように水密的に接続される。
継手部材1の本体部２ａの端部同士を、円筒管５にて接続する。この際に、各継手部材1は、枝管部２ｂが同じ方向を向くように接続する。これにより、継手部材1の本体部２ａと円筒管５とで、排水配管の主管部Ｄが構成される。また、主管部Ｄの接続時には、複数の大便器Ｔのそれぞれに、排水配管の複数備えられた枝管部２ｂが対応するように、円筒管５の長さを切断することで、各継手部材1の間隔を調整しておく。また、最も上流側の継手部材1の、本体部２ａの上流側端部に、点検口部材６の点検口本体６ａを接続し、点検口６ｂをキャップ部材６ｃで閉塞する。
次に、排水配管の主管部Ｄを、支持金具を用いて床面Ｆ上に設置固定する。
排水配管の主管部Ｄは、トイレ室の床面Ｆ上であって、主管部Ｄがトイレ室に配置された複数の大便器Ｔに沿うように、排水勾配を備えて設置固定される。この際に、枝管部２ｂが、大便器Ｔの反対方向であって、主管部Ｄの軸方向視斜め上方且つ平面視上流側を向くように設置固定する。また、排水配管の主管部Ｄの下流側端部を縦配管Ｖに接続する。上記した主管部Ｄの排水勾配とは、この縦配管Ｖ側ほど下方となるように設定された排水勾配である。
次に、各継手部材1の枝管部２ｂと便器排出口Ｔ２を接続する。
まず枝管部２ｂの端部に接続管３の円弧部３ｂ端部を接続する。この際には、接続管３の直管部３ａを主管部Ｄの上方に配置し、直管部３ａ端部が便器排出口Ｔ２の近傍となるようにした上で、円弧部３ｂの円弧を利用して配管の方向を主管部Ｄの枝管部２ｂ側に反転・屈曲させて枝管部２ｂに接続する。また便器排出口Ｔ２に蛇腹管４を接続する。更に蛇腹管４の伸縮・変形を利用し、接続管３の直管部３ａと蛇腹管４を接続して、排水配管の施工が完了する。 Each member configured as described above is constructed as follows.
Although not particularly described, the connection points of each member are watertightly connected by using adhesive, packing, tightening band, etc. so as not to cause water leakage.
The ends of the main body 2a of the joint member 1 are connected to each other by a cylindrical pipe 5. At this time, each joint member 1 is connected so that the branch pipe portion 2b faces the same direction. As a result, the main body portion 2a of the joint member 1 and the cylindrical pipe 5 form the main pipe portion D of the drainage pipe. Further, when the main pipe portion D is connected, each joint member is formed by cutting the length of the cylindrical pipe 5 so that the branch pipe portions 2b provided with a plurality of drainage pipes correspond to each of the plurality of toilet bowls T. Adjust the interval of 1. Further, the inspection port main body 6a of the inspection port member 6 is connected to the upstream end of the main body 2a of the most upstream joint member 1, and the inspection port 6b is closed by the cap member 6c.
Next, the main pipe portion D of the drainage pipe is installed and fixed on the floor surface F using the support metal fittings.
The main pipe portion D of the drainage pipe is installed and fixed on the floor surface F of the toilet room with a drainage gradient so that the main pipe portion D is along a plurality of toilet bowls T arranged in the toilet room. At this time, the branch pipe portion 2b is installed and fixed so as to face the opposite direction of the toilet bowl T, diagonally upward in the axial direction and upstream side in the plan view of the main pipe portion D. Further, the downstream end of the main pipe D of the drainage pipe is connected to the vertical pipe V. The drainage gradient of the main pipe portion D described above is a drainage gradient set so as to be downward toward the vertical pipe V side.
Next, the branch pipe portion 2b of each joint member 1 and the toilet bowl discharge port T2 are connected.
First, the end of the arc portion 3b of the connecting pipe 3 is connected to the end of the branch pipe portion 2b. At this time, the straight pipe portion 3a of the connecting pipe 3 is arranged above the main pipe portion D so that the end portion of the straight pipe portion 3a is in the vicinity of the toilet bowl discharge port T2, and then the arc portion 3b is formed. By using this, the direction of the pipe is reversed and bent toward the branch pipe portion 2b of the main pipe portion D to connect to the branch pipe portion 2b. Further, the bellows tube 4 is connected to the toilet bowl discharge port T2. Further, the straight pipe portion 3a of the connecting pipe 3 and the bellows pipe 4 are connected by utilizing the expansion / contraction / deformation of the bellows pipe 4, and the construction of the drainage pipe is completed.

上記のように構成した、排水配管を備えたトイレ室において、大便器Ｔの使用により、汚物としての大便やトイレットペーパー等の固体成分と、液体である洗浄水が混合した固液混合物が排出されると、固液混合物は便器排出口Ｔ２から、蛇腹管４、接続管３を介し継手部材1の枝管部２ｂを通過し、継手部材1の本体部２ａ、即ち排水配管の主管部Ｄに流入して、主管部Ｄより縦配管Ｖに流入し、縦配管Ｖより下水側に排出される。
この時、枝管部２ｂは、主管部Ｄに対して、主管部Ｄの軸方向視斜め上方から接続されてなるため、略水平方向から接続されている場合に比べ、流下を高い位置から勢いよく行うことができ、排水配管内に固体成分の停滞が生じにくい。
また、本実施例では、枝管部２ｂから流れる固液混合物が、全て下流方向に向かうように角度を有して主管部Ｄに合流するように主管部Ｄと枝管部２ｂを構成してなる。具体的には、上記継手部材1において、枝管部２ｂは平面視主管部Ｄの上流側に対して鋭角にて接続されるため、枝管部２ｂに沿って流れてくる固液混合物は、主管部Ｄの枝管部２ｂと反対側の側面に対して垂直に衝突することがほとんどなく、主管部Ｄの下流側に向かうように合流し、そのままスムーズに主管部Ｄを流下する。
第一実施例の、排水時の試験結果に基づくグラフを図６に示す。試験は、フラッシュバルブを採用した大便器を用いて、バルブを開栓し、大便器の排水開始から時間の経過によって排水流量がどのように変化するかを計測したものであり、図６のグラフはその試験結果をグラフ化したものである。試験に用いたフラッシュバルブは、０．３メガパスカルの水圧にて、１回の使用で６リットルの洗浄水を流す、節水式に分類されるフラッシュバルブである。
また、グラフは上流から２台目の位置に配置した大便器の配管にて計測した結果をグラフ化したものであり、縦軸が洗浄水の流量（リットル／秒）を示し、横軸が経過時間（秒）を示すものである。
本実施例の構成にて５回試験を行い、その計測結果を一つのグラフにまとめている。
縦軸、即ち排水流量のピークの値が大きいほど、質量の大きい固液混合物を、排水と共に排出することが可能になる。
また、排水の際に、排水の一部が上流側に逆流すると、排水の流れ方に乱れが生じる。グラフ上では、排水のピークが釣鐘状の、滑らかな上向き凸形状を成すほど洗浄水の流下が滑らかに行われていることを示し、ピークの頂点が比較的低い値で平坦となった場合や、ピーク上に窪みが生じた場合は、排水の流れが逆流によって乱されたことを示している。
図６の、本実施例の試験結果のグラフに対し、比較対象として、従来からある単純なＴ字形状を成す接手部材１を使って第一実施例の試験と同様の試験を行った場合のグラフを図２０に示す。グラフの縦軸／横軸は図６のグラフと同じく縦軸が洗浄水の流量（リットル／秒）を示し、横軸が経過時間（秒）を示すものである。
従来の継手部材１の試験結果である図２０のグラフが、６秒から１２秒の間でほぼ同じピーク値を示し、また１０秒の位置で大きく窪んでいることに対し、本実施例の試験結果での排水流量のピークを示すグラフの形状は滑らかな上向き凸形状を成している。
このことから、従来からあるＴ字形状の継手部材１を用いた場合に比べ、本実施例の継手部材１を用いた場合は、
１．ピークの頂点の値が大きいことから、質量の大きい固液混合物を排出することが可能であること
２．グラフの形状は滑らかな上向き凸形状を成していることから、逆流が少なく、滑らかな排水が行われていること
を読み取ることができる。
また、本実施例では、施工完了時の平面視における、主管部Ｄの軸に対して垂直であって、本体部２ａと枝管部２ｂとの接続箇所の上流側端部を通過する仮想の線（図５のＬ１にて示した線）は、枝管部２ｂの、本体部２ａに対し傾斜した内面部分に交差してなる。即ち、枝管部２ｂ側を通過した固液混合物は、平面視必ず主管部Ｄに対して下流方向に向かって角度を有して流下する。このため、枝管部側からの排水の合流はスムーズに行われ、また主管部Ｄの枝管部２ｂに対向する側の内面に衝突しても、固液混合物は枝管部２ｂより下流側に飛散して、上流側に飛散または逆流することが無い。最も上流側の継手部材1でも上流側、即ち点検口部材６側に固液混合物が飛散または逆流することが無いため、排水配管内が、固液混合物が留まり続けることに由来する不衛生を生じることなく、また点検やメンテナンスのために点検口６ｂを開口する際に、汚物が配管外に漏れて周囲を汚染したり、作業者に不快な思いをさせる、ということが生じなくなる。
また、直管部３ａと継手部材1の枝管部２ｂの内径はほぼ同径であり、また円筒管５と継手部材1の本体部２ａの内径もほぼ同径である。そして、本体部２ａの内径は枝管部２ｂの内径よりも大径であるから、枝管部２ｂを通過した固液混合物が、主管部Ｄ側で流路が狭くなることにより管詰まりを生じる、ということが無い。
また、接続管３を主管部Ｄ上で反転させることで、配管の接続しろをこの主管部Ｄ上に配置でき、その分配管レイアウトをコンパクトなものとすることができる。 In the toilet room equipped with the drain pipe configured as described above, the use of the toilet bowl T discharges a solid-liquid mixture in which solid components such as stool and toilet paper as filth and washing water which is a liquid are mixed. Then, the solid-liquid mixture passes through the branch pipe portion 2b of the joint member 1 from the toilet bowl discharge port T2 via the bellows pipe 4 and the connecting pipe 3, and reaches the main body portion 2a of the joint member 1, that is, the main pipe portion D of the drain pipe. It flows in, flows into the vertical pipe V from the main pipe portion D, and is discharged to the sewage side from the vertical pipe V.
At this time, since the branch pipe portion 2b is connected to the main pipe portion D from diagonally above the axial direction of the main pipe portion D, the flow is momentum from a higher position than when the branch pipe portion 2b is connected from a substantially horizontal direction. It can be done well, and solid components are less likely to stagnate in the drainage pipe.
Further, in the present embodiment, the main pipe portion D and the branch pipe portion 2b are configured so that all the solid-liquid mixture flowing from the branch pipe portion 2b joins the main pipe portion D at an angle so as to go in the downstream direction. Become. Specifically, in the joint member 1, the branch pipe portion 2b is connected to the upstream side of the main pipe portion D in a plan view at a sharp angle, so that the solid-liquid mixture flowing along the branch pipe portion 2b is a solid-liquid mixture. There is almost no vertical collision with the side surface of the main pipe portion D opposite to the branch pipe portion 2b, and the main pipe portion D merges toward the downstream side and smoothly flows down the main pipe portion D as it is.
A graph based on the test results at the time of drainage of the first embodiment is shown in FIG. In the test, a toilet bowl using a flush valve was used to open the valve, and how the drainage flow rate changed with the passage of time from the start of drainage of the toilet bowl was measured. Is a graph of the test results. The flush valve used in the test is a water-saving flush valve that allows 6 liters of wash water to flow in a single use at a water pressure of 0.3 megapascals.
In addition, the graph is a graph of the results measured by the piping of the toilet bowl placed at the second position from the upstream, the vertical axis shows the flow rate of washing water (liter / sec), and the horizontal axis shows the elapsed time. It indicates the time (seconds).
The test was performed 5 times with the configuration of this example, and the measurement results are summarized in one graph.
The larger the vertical axis, that is, the value of the peak value of the wastewater flow rate, the larger the mass of the solid-liquid mixture can be discharged together with the wastewater.
Further, at the time of drainage, if a part of the drainage flows back to the upstream side, the flow of the drainage is disturbed. On the graph, it is shown that the drainage peak is bell-shaped and the wash water flows smoothly so that it forms a smooth upward convex shape, and when the peak peak becomes flat at a relatively low value. , If a depression occurs on the peak, it indicates that the drainage flow was disturbed by the backflow.
When the same test as the test of the first embodiment is performed using the conventional simple T-shaped joint member 1 as a comparison target with respect to the graph of the test result of the present embodiment shown in FIG. The graph is shown in FIG. Similar to the graph of FIG. 6, the vertical axis / horizontal axis of the graph indicates the flow rate of washing water (liters / second), and the horizontal axis indicates the elapsed time (seconds).
The graph of FIG. 20, which is the test result of the conventional joint member 1, shows almost the same peak value between 6 seconds and 12 seconds, and is greatly depressed at the position of 10 seconds. The shape of the graph showing the peak of the drainage flow rate in the result is a smooth upward convex shape.
From this, compared with the case where the conventional T-shaped joint member 1 is used, when the joint member 1 of this embodiment is used, the case where the joint member 1 of this embodiment is used is compared with the case where the joint member 1 is used.
1. 1. Since the value of the peak is large, it is possible to discharge a solid-liquid mixture with a large mass. Since the shape of the graph is a smooth upward convex shape, it can be read that there is little backflow and smooth drainage is performed.
Further, in this embodiment, a virtual one that is perpendicular to the axis of the main pipe portion D and passes through the upstream end portion of the connection portion between the main body portion 2a and the branch pipe portion 2b in the plan view at the completion of construction. The line (the line shown by L1 in FIG. 5) intersects the inner surface portion of the branch pipe portion 2b that is inclined with respect to the main body portion 2a. That is, the solid-liquid mixture that has passed through the branch pipe portion 2b always flows down at an angle in the downstream direction with respect to the main pipe portion D in a plan view. Therefore, the drainage from the branch pipe portion side is smoothly merged, and even if the main pipe portion D collides with the inner surface of the side facing the branch pipe portion 2b, the solid-liquid mixture is on the downstream side of the branch pipe portion 2b. It does not scatter to the upstream side or flow back. Even in the most upstream joint member 1, the solid-liquid mixture does not scatter or flow back to the upstream side, that is, to the inspection port member 6, which causes unsanitary conditions due to the solid-liquid mixture remaining in the drain pipe. In addition, when the inspection port 6b is opened for inspection or maintenance, filth does not leak to the outside of the pipe, contaminate the surroundings, or make the operator feel uncomfortable.
Further, the inner diameters of the straight pipe portion 3a and the branch pipe portion 2b of the joint member 1 are substantially the same, and the inner diameters of the cylindrical pipe 5 and the main body portion 2a of the joint member 1 are also substantially the same diameter. Since the inner diameter of the main body portion 2a is larger than the inner diameter of the branch pipe portion 2b, the solid-liquid mixture that has passed through the branch pipe portion 2b causes pipe clogging due to the narrowing of the flow path on the main pipe portion D side. There is no such thing.
Further, by inverting the connection pipe 3 on the main pipe portion D, the connection margin of the pipe can be arranged on the main pipe portion D, and the pipe layout can be made compact by that amount.

次に、本発明の第二実施例について、図７乃至図１１にて図示した図面を参照しつつ説明する。
尚、本発明の第二実施例のトイレ室や大便器Ｔ、また排水配管の部材は、継手部材1のみ相違し、他の設備・設備機器・部材は段落００１９に記載した第一実施例と同じ構成であるため、以下の説明では、継手部材1のみ説明を記載する。
本発明の第二実施例の継手部材1は、以下に記載する、継手本体２、接続管３、及び蛇腹管４から構成される。本実施例では、継手部材1は、大便器Ｔの数に合わせて５つ使用される。
継手本体２は、図１１に示したように、両端が開口した円筒状の本体部２ａと、該本体部２ａの側面に開口した枝管部２ｂと、から構成される。ここで、枝管部２ｂは、本体部２ａに対して以下のように配置構成されている。
施工完了時、枝管部２ｂは、主管部Ｄに対して、平面視本体部２ａの中心軸の上流側に対して約４５度の角度を成して構成されてなる。また、上記継手部材1において、施工完了時の平面視における、主管部Ｄの軸に対して垂直であって、本体部２ａと枝管部２ｂとの接続箇所の上流側端部を通過する仮想の線（図１１のＬ２にて示した線）は、枝管部２ｂの、本体部２ａに対し傾斜した内面部分に交差してなる。
接続管３は継手本体２の枝管部２ｂと、蛇腹管４を介して大便器Ｔの便器排出口Ｔ２の間を接続する配管であって、直管部３ａと、施工完了時に、平面視両端が約１３０度の角度となると共に、主管部Ｄの軸方向視９０度を超える１８０度の半円弧を形成する円弧部３ｂとからなる。
蛇腹管４は、蛇腹形状を備えた円筒形状の部材であって、ゴム等の弾性素材からなり、便器排出口Ｔ２と接続管３の直管部３ａ側端部を、若干の位置ずれを調整しつつ接続する。
尚、各部材の内、直管部３ａと継手部材1の枝管部２ｂの内径はほぼ同径であり、また円筒管５と継手部材1の本体部２ａの内径もほぼ同径である。また、本体部２ａの内径は枝管部２ｂの内径よりも大径である。 Next, a second embodiment of the present invention will be described with reference to the drawings illustrated in FIGS. 7 to 11.
The toilet room, toilet bowl T, and drainage pipe member of the second embodiment of the present invention differ only in the joint member 1, and the other equipment / equipment / member are different from those of the first embodiment described in paragraph 0019. Since the configuration is the same, in the following description, only the joint member 1 will be described.
The joint member 1 of the second embodiment of the present invention is composed of the joint body 2, the connecting pipe 3, and the bellows pipe 4, which are described below. In this embodiment, five joint members 1 are used according to the number of toilet bowls T.
As shown in FIG. 11, the joint main body 2 is composed of a cylindrical main body portion 2a having both ends open and a branch pipe portion 2b open to the side surface of the main body portion 2a. Here, the branch pipe portion 2b is arranged and configured with respect to the main body portion 2a as follows.
When the construction is completed, the branch pipe portion 2b is configured to form an angle of about 45 degrees with respect to the main pipe portion D with respect to the upstream side of the central axis of the main body portion 2a in a plan view. Further, in the joint member 1, a virtual joint member 1 is perpendicular to the axis of the main pipe portion D in a plan view at the completion of construction and passes through the upstream end portion of the connection portion between the main body portion 2a and the branch pipe portion 2b. (Line shown in L2 of FIG. 11) intersects the inner surface portion of the branch pipe portion 2b that is inclined with respect to the main body portion 2a.
The connecting pipe 3 is a pipe that connects the branch pipe portion 2b of the joint body 2 and the toilet bowl discharge port T2 of the toilet bowl T via the bellows pipe 4, and is viewed in plan view with the straight pipe portion 3a when the construction is completed. Both ends have an angle of about 130 degrees, and the main pipe portion D is composed of an arc portion 3b that forms a 180-degree semi-arc that exceeds 90 degrees in the axial direction.
The bellows tube 4 is a cylindrical member having a bellows shape, is made of an elastic material such as rubber, and adjusts a slight misalignment between the toilet bowl discharge port T2 and the straight pipe portion 3a side end of the connecting pipe 3. Connect while doing.
Among the members, the inner diameters of the straight pipe portion 3a and the branch pipe portion 2b of the joint member 1 are substantially the same diameter, and the inner diameters of the cylindrical pipe 5 and the main body portion 2a of the joint member 1 are also substantially the same diameter. Further, the inner diameter of the main body portion 2a is larger than the inner diameter of the branch pipe portion 2b.

上記のように構成された各部材は、以下のようにして施工される。
尚、特に記載しないが、各部材の接続箇所は、接着やパッキング、締付バンド等を利用し、漏水などが生じないように水密的に接続される。
継手部材1の本体部２ａの端部同士を、円筒管５にて接続する。この際に、各継手部材1は、枝管部２ｂが同じ方向を向くように接続する。これにより、継手部材1の本体部２ａと円筒管５とで、排水配管の主管部Ｄが構成される。また、主管部Ｄの接続時には、設置の際に複数の大便器Ｔのそれぞれに、排水配管の複数備えられた枝管部２ｂが対応するように、円筒管５の長さを切断することで、各継手部材1の間隔を調整しておく。また、最も上流側の継手部材1の、本体部２ａの上流側端部に、点検口部材６の点検口本体６ａを接続し、点検口６ｂをキャップ部材６ｃで閉塞する。
次に、排水配管の主管部Ｄを、支持金具を用いて床面Ｆ上に設置固定する。
排水配管の主管部Ｄは、トイレ室の床面Ｆ上であって、主管部Ｄがトイレ室に配置された複数の大便器Ｔに沿うように、排水勾配を備えて設置固定される。この際に、枝管部２ｂが、大便器Ｔの反対方向であって、主管部Ｄの軸方向視略水平且つ枝管部２ｂが平面視上流側を向くように設置固定する。また、排水配管の主管部Ｄの下流側端部を縦配管Ｖに接続する。上記した主管部Ｄの排水勾配とは、この縦配管Ｖ側ほど下方となるように設定された排水勾配である。
次に、各継手部材1の枝管部２ｂと便器排出口Ｔ２を接続する。
まず枝管部２ｂの端部に接続管３の円弧部３ｂ端部を接続する。この際には、接続管３の直管部３ａを主管部Ｄの上方に配置し、直管部３ａ端部が便器排出口Ｔ２の近傍となるようにした上で、円弧部３ｂの円弧を利用して配管の方向を主管部Ｄの枝管部２ｂ側に反転・屈曲させて枝管部２ｂに接続する。また便器排出口Ｔ２に蛇腹管４を接続する。更に蛇腹管４の伸縮・変形を利用し、接続管３の直管部３ａと蛇腹管４を接続して、排水配管の施工が完了する。 Each member configured as described above is constructed as follows.
Although not particularly described, the connection points of each member are watertightly connected by using adhesive, packing, tightening band, etc. so as not to cause water leakage.
The ends of the main body 2a of the joint member 1 are connected to each other by a cylindrical pipe 5. At this time, each joint member 1 is connected so that the branch pipe portion 2b faces the same direction. As a result, the main body portion 2a of the joint member 1 and the cylindrical pipe 5 form the main pipe portion D of the drainage pipe. Further, when the main pipe portion D is connected, the length of the cylindrical pipe 5 is cut so that the branch pipe portions 2b provided with a plurality of drainage pipes correspond to each of the plurality of toilet bowls T at the time of installation. , Adjust the spacing of each joint member 1. Further, the inspection port main body 6a of the inspection port member 6 is connected to the upstream end of the main body 2a of the most upstream joint member 1, and the inspection port 6b is closed by the cap member 6c.
Next, the main pipe portion D of the drainage pipe is installed and fixed on the floor surface F using the support metal fittings.
The main pipe portion D of the drainage pipe is installed and fixed on the floor surface F of the toilet room with a drainage gradient so that the main pipe portion D is along a plurality of toilet bowls T arranged in the toilet room. At this time, the branch pipe portion 2b is installed and fixed so as to be in the opposite direction of the toilet bowl T, substantially horizontal in the axial direction of the main pipe portion D, and the branch pipe portion 2b faces the upstream side in the plan view. Further, the downstream end of the main pipe D of the drainage pipe is connected to the vertical pipe V. The drainage gradient of the main pipe portion D described above is a drainage gradient set so as to be downward toward the vertical pipe V side.
Next, the branch pipe portion 2b of each joint member 1 and the toilet bowl discharge port T2 are connected.
First, the end of the arc portion 3b of the connecting pipe 3 is connected to the end of the branch pipe portion 2b. At this time, the straight pipe portion 3a of the connecting pipe 3 is arranged above the main pipe portion D so that the end portion of the straight pipe portion 3a is in the vicinity of the toilet bowl discharge port T2, and then the arc portion 3b is formed. By using this, the direction of the pipe is reversed and bent toward the branch pipe portion 2b of the main pipe portion D to connect to the branch pipe portion 2b. Further, the bellows tube 4 is connected to the toilet bowl discharge port T2. Further, the straight pipe portion 3a of the connecting pipe 3 and the bellows pipe 4 are connected by utilizing the expansion / contraction / deformation of the bellows pipe 4, and the construction of the drainage pipe is completed.

上記のように構成した、排水配管を備えたトイレ室において、大便器Ｔの使用により、汚物としての大便やトイレットペーパー等の固体成分と、液体である洗浄水が混合した固液混合物が排出されると、固液混合物は便器排出口Ｔ２から、蛇腹管４、接続管３を介し継手部材1の枝管部２ｂを通過し、継手部材1の本体部２ａ、即ち排水配管の主管部Ｄ側に流入して、主管部Ｄより縦配管Ｖに流入し、縦配管Ｖより下水側に排出される。
この時、枝管部２ｂは、主管部Ｄに対して、主管部Ｄの軸方向視上方から円弧を形成しつつ該円弧が水平方向より接続されてなるため、枝管部２ｂは主管部Ｄに対して略水平方向から接続されているが、固液混合物の流下は、接続管３の円弧の上端である高い位置から、接続管３の円弧に沿って滑らかに流れ、その勢いのまま主管部Ｄに合流するため、排水配管内に固体成分の停滞が生じにくい。
段落００２１に記載した第一実施例の試験と同様の試験を、第二実施例に行った場合の排水時の試験結果に基づくグラフを図１２に示す。グラフの縦軸／横軸は図６のグラフと同じく縦軸が洗浄水の流量（リットル／秒）を示し、横軸が経過時間（秒）を示すものである。
この第二実施例の試験結果のグラフからも、図２０の従来のＴ字形状の継手部材を用いた場合と比較して
１．ピークの頂点の値が大きいことから、質量の大きい固液混合物を排出することが可能であること
２．グラフの形状は滑らかな上向き凸形状を成していることから、逆流が少なく、滑らかな排水が行われていること
を読み取ることができる。
その他、第一実施例と同様の構成については、第一実施例と同様の作用・効果を奏する。 In the toilet room equipped with the drain pipe configured as described above, the use of the toilet bowl T discharges a solid-liquid mixture in which solid components such as stool and toilet paper as filth and washing water which is a liquid are mixed. Then, the solid-liquid mixture passes through the branch pipe portion 2b of the joint member 1 from the toilet bowl discharge port T2 via the bellows pipe 4 and the connecting pipe 3, and is the main body portion 2a of the joint member 1, that is, the main pipe portion D side of the drain pipe. , It flows into the vertical pipe V from the main pipe portion D, and is discharged to the sewage side from the vertical pipe V.
At this time, since the branch pipe portion 2b is connected to the main pipe portion D from the horizontal direction while forming an arc from above the main pipe portion D in the axial direction, the branch pipe portion 2b is connected to the main pipe portion D. Although it is connected from a substantially horizontal direction to the above, the flow of the solid-liquid mixture flows smoothly along the arc of the connecting pipe 3 from a high position at the upper end of the arc of the connecting pipe 3, and the main pipe keeps its momentum. Since it joins the part D, stagnation of solid components is unlikely to occur in the drainage pipe.
FIG. 12 shows a graph based on the test results at the time of drainage when the same test as the test of the first example described in paragraph 0021 was performed in the second example. Similar to the graph of FIG. 6, the vertical axis / horizontal axis of the graph indicates the flow rate of washing water (liters / second), and the horizontal axis indicates the elapsed time (seconds).
From the graph of the test results of the second embodiment, as compared with the case where the conventional T-shaped joint member of FIG. 20 is used, 1. Since the value of the peak is large, it is possible to discharge a solid-liquid mixture with a large mass. Since the shape of the graph is a smooth upward convex shape, it can be read that there is little backflow and smooth drainage is performed.
In addition, the same configuration as in the first embodiment has the same action and effect as in the first embodiment.

次に、本発明の第三実施例について、図１３乃至図１８にて図示した図面を参照しつつ説明する。
尚、本発明の第三実施例のトイレ室や大便器Ｔ、また排水配管の部材は、継手部材1のみ相違し、他の設備・設備機器・部材は段落００１９に記載した第一実施例と同じ構成であるため、以下の説明では、継手部材1のみ説明を記載する。
本発明の第三実施例の継手部材1は、以下に記載する、継手本体２、接続管３、及び蛇腹管４から構成される。本実施例では、継手部材1は、大便器Ｔの数に合わせて５つ使用される。
継手本体２は、図１８に示したように、両端が開口した円筒状の本体部２ａと、該本体部２ａの側面に開口した枝管部２ｂと、から構成される。ここで、枝管部２ｂは、本体部２ａに対して以下のように配置構成されている。
施工完了時、枝管部２ｂは、主管部Ｄに対して、平面視本体部２ａの中心軸の上流側に対して約４５度の角度を成して構成されてなる。また、上記継手部材1において、施工完了時の平面視における、主管部Ｄの軸に対して垂直であって、本体部２ａと枝管部２ｂとの接続箇所の上流側端部を通過する仮想の線（図１８のＬ３にて示した線）は、枝管部２ｂの、本体部２ａに対し傾斜した内面部分に交差してなる。
接続管３は継手本体２の枝管部２ｂと、蛇腹管４を介して大便器Ｔの便器排出口Ｔ２の間を接続する配管であって、直管部３ａと、施工完了時に、平面視両端が約１３０度の角度となると共に、主管部Ｄの軸方向視において、枝管部２ｂの角度に合わせて斜め下方向に向けて傾斜を備えてなる。
蛇腹管４は、蛇腹形状を備えた円筒形状の部材であって、ゴム等の弾性素材からなり、便器排出口Ｔ２と接続管３の直管部３ａ側端部を、若干の位置ずれを調整しつつ接続する。
尚、各部材の内、直管部３ａと継手部材1の枝管部２ｂの内径はほぼ同径であり、また円筒管５と継手部材1の本体部２ａの内径もほぼ同径である。また、本体部２ａの内径は枝管部２ｂの内径よりも大径である。 Next, a third embodiment of the present invention will be described with reference to the drawings illustrated in FIGS. 13 to 18.
The toilet room, toilet bowl T, and drainage pipe member of the third embodiment of the present invention differ only in the joint member 1, and the other equipment / equipment / member are different from those of the first embodiment described in paragraph 0019. Since the configuration is the same, in the following description, only the joint member 1 will be described.
The joint member 1 of the third embodiment of the present invention is composed of the joint main body 2, the connecting pipe 3, and the bellows pipe 4, which are described below. In this embodiment, five joint members 1 are used according to the number of toilet bowls T.
As shown in FIG. 18, the joint main body 2 is composed of a cylindrical main body portion 2a having both ends open and a branch pipe portion 2b open to the side surface of the main body portion 2a. Here, the branch pipe portion 2b is arranged and configured with respect to the main body portion 2a as follows.
When the construction is completed, the branch pipe portion 2b is configured to form an angle of about 45 degrees with respect to the main pipe portion D with respect to the upstream side of the central axis of the main body portion 2a in a plan view. Further, in the joint member 1, a virtual joint member 1 is perpendicular to the axis of the main pipe portion D in a plan view at the completion of construction and passes through the upstream end portion of the connection portion between the main body portion 2a and the branch pipe portion 2b. (Line shown in L3 of FIG. 18) intersects the inner surface portion of the branch pipe portion 2b that is inclined with respect to the main body portion 2a.
The connecting pipe 3 is a pipe that connects the branch pipe portion 2b of the joint body 2 and the toilet bowl discharge port T2 of the toilet bowl T via the bellows pipe 4, and is viewed in plan view with the straight pipe portion 3a when the construction is completed. Both ends have an angle of about 130 degrees, and in the axial view of the main pipe portion D, the main pipe portion D is provided with an inclination in the diagonally downward direction in accordance with the angle of the branch pipe portion 2b.
The bellows tube 4 is a cylindrical member having a bellows shape, is made of an elastic material such as rubber, and adjusts a slight misalignment between the toilet bowl discharge port T2 and the straight pipe portion 3a side end of the connecting pipe 3. Connect while doing.
Among the members, the inner diameters of the straight pipe portion 3a and the branch pipe portion 2b of the joint member 1 are substantially the same diameter, and the inner diameters of the cylindrical pipe 5 and the main body portion 2a of the joint member 1 are also substantially the same diameter. Further, the inner diameter of the main body portion 2a is larger than the inner diameter of the branch pipe portion 2b.

上記のように構成された各部材は、以下のようにして施工される。
尚、特に記載しないが、各部材の接続箇所は、接着やパッキング、締付バンド等を利用し、漏水などが生じないように水密的に接続される。
継手部材1の本体部２ａの端部同士を、円筒管５にて接続する。この際に、各継手部材1は、枝管部２ｂが排水勾配に合わせて軸方向視互いに若干異なる角度を成すように接続する。これにより、継手部材1の本体部２ａと円筒管５とで、排水配管の主管部Ｄが構成される。
ここで、「枝管部２ｂが排水勾配に合わせて軸方向視互いに若干異なる角度を成すように接続する」について説明する。後述するように、施工時主管部Ｄを床面Ｆに設置する際に、主管部Ｄには排水のための勾配が設けられるため、上流の継手部材1ほど高い位置となり、下流側の継手部材1ほど低い位置となる。
対して大便器Ｔは同じ構成であり、平坦な床面Ｆに設置された場合、便器排出口Ｔ２は同じ高さ位置に配置される。このため、施工の際、排水配管の、上流側の継手部材1ほど便器排出口Ｔ２との高低差が小さく、下流側の継手部材1ほど便器排出口Ｔ２との高低差が大きくなる。そこで、施工完了時に、上流側の継手部材1の枝管部２ｂほど水平面に対して角度を小さくし、下流側の継手部材1の枝管部２ｂほど水平面に対して角度を大きくする、即ち「枝管部２ｂが排水勾配に合わせて軸方向視互いに若干異なる角度を成すように接続する」ことで、排水配管の主管部Ｄを大便器Ｔに沿って設置しても、高低差を調整して支障なく接続を行うことができる。
本実施例の場合、５個の排水継手の内、図１６にて示した最も上流側の継手部材1の枝管部２ｂの中心軸が水平面となす角度が２０度程度であるのに対し、図１７にて示した最も下流側の継手部材1の枝管部２ｂの中心軸が水平面となす角度は４０度程度である。
また、主管部Ｄの接続時には、設置の際、複数の大便器Ｔのそれぞれに、排水配管の複数備えられた枝管部２ｂが対応するように、円筒管５の長さを切断することで、各継手部材1の間隔を調整しておく。また、最も上流側の継手部材1の、本体部２ａの上流側端部に、点検口部材６の点検口本体６ａを接続し、点検口６ｂをキャップ部材６ｃで閉塞する。
次に、排水配管の主管部Ｄを、支持金具を用いて床面Ｆ上に設置固定する。
排水配管の主管部Ｄは、トイレ室の床面Ｆ上であって、主管部Ｄがトイレ室に配置された複数の大便器Ｔに沿うように、排水勾配を備えて設置固定される。この際に、枝管部２ｂが、大便器Ｔの方向であって、主管部Ｄの軸方向視斜め上方且つ枝管部２ｂが平面視上流側を向くように設置固定する。また、排水配管の主管部Ｄの下流側端部を縦配管Ｖに接続する。上記した主管部Ｄの排水勾配とは、この縦配管Ｖ側ほど下方となるように設定された排水勾配である。
次に、各継手部材1の枝管部２ｂと便器排出口Ｔ２を接続する。手順について説明すると、まず枝管部２ｂの端部に接続管３の円弧部３ｂ端部を接続する。
前述の通り、枝管部２ｂが排水勾配に合わせて軸方向視互いに若干異なる角度を成すように接続されてなるため、枝管部２ｂと接続管３を接続することで、支障なく直管部３ａ端部が便器排出口Ｔ２の近傍に配置される。また便器排出口Ｔ２に蛇腹管４を接続する。更に蛇腹管４の伸縮・変形を利用し、接続管３の直管部３ａと蛇腹管４を接続して、排水配管の施工が完了する。 Each member configured as described above is constructed as follows.
Although not particularly described, the connection points of each member are watertightly connected by using adhesive, packing, tightening band, etc. so as not to cause water leakage.
The ends of the main body 2a of the joint member 1 are connected to each other by a cylindrical pipe 5. At this time, each joint member 1 is connected so that the branch pipe portion 2b forms an angle slightly different from each other in the axial direction according to the drainage gradient. As a result, the main body portion 2a of the joint member 1 and the cylindrical pipe 5 form the main pipe portion D of the drainage pipe.
Here, "the branch pipe portion 2b is connected so as to form an angle slightly different from each other in the axial direction according to the drainage gradient" will be described. As will be described later, when the main pipe portion D is installed on the floor surface F during construction, the main pipe portion D is provided with a gradient for drainage, so that the position is as high as the upstream joint member 1 and the downstream joint member. It will be about 1 lower.
On the other hand, the toilet bowl T has the same configuration, and when installed on a flat floor surface F, the toilet bowl outlet T2 is arranged at the same height position. Therefore, at the time of construction, the height difference between the drainage pipe and the toilet bowl discharge port T2 is smaller as the upstream side joint member 1 is smaller, and the height difference from the toilet bowl discharge port T2 is larger as the downstream joint member 1 is located. Therefore, when the construction is completed, the angle of the branch pipe portion 2b of the upstream joint member 1 is reduced with respect to the horizontal plane, and the angle of the branch pipe portion 2b of the downstream joint member 1 is increased with respect to the horizontal plane. By connecting the branch pipes 2b so that they form slightly different angles in the axial direction according to the drainage gradient, the height difference can be adjusted even if the main pipe D of the drainage pipe is installed along the toilet bowl T. The connection can be made without any trouble.
In the case of this embodiment, of the five drainage joints, the angle formed by the central axis of the branch pipe portion 2b of the most upstream joint member 1 shown in FIG. 16 with the horizontal plane is about 20 degrees. The angle formed by the central axis of the branch pipe portion 2b of the most downstream joint member 1 shown in FIG. 17 with the horizontal plane is about 40 degrees.
Further, when the main pipe portion D is connected, the length of the cylindrical pipe 5 is cut so that the branch pipe portions 2b provided with a plurality of drainage pipes correspond to each of the plurality of toilet bowls T at the time of installation. , Adjust the spacing of each joint member 1. Further, the inspection port main body 6a of the inspection port member 6 is connected to the upstream end of the main body 2a of the most upstream joint member 1, and the inspection port 6b is closed by the cap member 6c.
Next, the main pipe portion D of the drainage pipe is installed and fixed on the floor surface F using the support metal fittings.
The main pipe portion D of the drainage pipe is installed and fixed on the floor surface F of the toilet room with a drainage gradient so that the main pipe portion D is along a plurality of toilet bowls T arranged in the toilet room. At this time, the branch pipe portion 2b is installed and fixed so as to be in the direction of the toilet bowl T, diagonally upward in the axial direction of the main pipe portion D, and the branch pipe portion 2b facing the upstream side in the plan view. Further, the downstream end of the main pipe D of the drainage pipe is connected to the vertical pipe V. The drainage gradient of the main pipe portion D described above is a drainage gradient set so as to be downward toward the vertical pipe V side.
Next, the branch pipe portion 2b of each joint member 1 and the toilet bowl discharge port T2 are connected. To explain the procedure, first, the end of the arc portion 3b of the connecting pipe 3 is connected to the end of the branch pipe portion 2b.
As described above, since the branch pipe portion 2b is connected so as to form a slightly different angle from each other in the axial direction according to the drainage gradient, the straight pipe portion can be connected without any trouble by connecting the branch pipe portion 2b and the connecting pipe 3. The 3a end is arranged in the vicinity of the toilet discharge port T2. Further, the bellows tube 4 is connected to the toilet bowl discharge port T2. Further, the straight pipe portion 3a of the connecting pipe 3 and the bellows pipe 4 are connected by utilizing the expansion / contraction / deformation of the bellows pipe 4, and the construction of the drainage pipe is completed.

上記のように構成した、排水配管を備えたトイレ室において、大便器Ｔの使用により、汚物としての大便やトイレットペーパー等の固体成分と、液体である洗浄水が混合した固液混合物が排出されると、固液混合物は便器排出口Ｔ２から、蛇腹管４、接続管３を介し継手部材1の枝管部２ｂを通過し、継手部材1の本体部２ａ、即ち排水配管の主管部Ｄ側に流入して、主管部Ｄより縦配管Ｖに流入し、縦配管Ｖより下水側に排出される。
この時、枝管部２ｂは、主管部Ｄに対して、主管部Ｄの軸方向視斜め上方から接続されてなるため、略水平方向から接続されている場合に比べ、流下を高い位置から勢いよく行うことができ、排水配管内に固体成分の停滞が生じにくい。
段落００２１に記載した第一実施例の試験と同様の試験を、第三実施例に行った場合の排水時の試験結果に基づくグラフを図１９に示す。グラフの縦軸／横軸は図６のグラフと同じく縦軸が洗浄水の流量（リットル／秒）を示し、横軸が経過時間（秒）を示すものである。
この第三実施例の試験結果のグラフからも、図２０の従来のＴ字形状の継手部材を用いた場合と比較して
１．ピークの頂点の値が大きいことから、質量の大きい固液混合物を排出することが可能であること
２．グラフの形状は滑らかな上向き凸形状を成していることから、逆流が少なく、滑らかな排水が行われていること
を読み取ることができる。
その他、第一実施例と同様の構成については、第一実施例と同様の作用・効果を奏する。 In the toilet room equipped with the drain pipe configured as described above, the use of the toilet bowl T discharges a solid-liquid mixture in which solid components such as stool and toilet paper as filth and washing water which is a liquid are mixed. Then, the solid-liquid mixture passes through the branch pipe portion 2b of the joint member 1 from the toilet bowl discharge port T2 via the bellows pipe 4 and the connecting pipe 3, and is the main body portion 2a of the joint member 1, that is, the main pipe portion D side of the drain pipe. , It flows into the vertical pipe V from the main pipe portion D, and is discharged to the sewage side from the vertical pipe V.
At this time, since the branch pipe portion 2b is connected to the main pipe portion D from diagonally above the axial direction of the main pipe portion D, the flow is momentum from a higher position than when the branch pipe portion 2b is connected from a substantially horizontal direction. It can be done well, and solid components are less likely to stagnate in the drainage pipe.
FIG. 19 shows a graph based on the test results at the time of drainage when the same test as the test of the first example described in paragraph 0021 was performed in the third example. Similar to the graph of FIG. 6, the vertical axis / horizontal axis of the graph indicates the flow rate of washing water (liters / second), and the horizontal axis indicates the elapsed time (seconds).
From the graph of the test results of the third embodiment, as compared with the case where the conventional T-shaped joint member of FIG. 20 is used, 1. Since the value of the peak is large, it is possible to discharge a solid-liquid mixture with a large mass. Since the shape of the graph is a smooth upward convex shape, it can be read that there is little backflow and smooth drainage is performed.
In addition, the same configuration as in the first embodiment has the same action and effect as in the first embodiment.

本発明の実施例は上記のようであるが、本発明は上記実施例に限定されるものでは無く、発明の主旨を変更しない範囲で自由に変更が可能である。例えば、上記実施例では、トイレ室を公共用とし、大便器Ｔと大便器に対応する継手部材を５組備えて構成しているが、大便器Ｔと継手部材1をトイレ室に１組又は５組以外の複数組設けるものとして構成しても構わない。 Examples of the present invention are as described above, but the present invention is not limited to the above examples, and can be freely changed without changing the gist of the invention. For example, in the above embodiment, the toilet room is for public use, and the toilet bowl T and the joint member corresponding to the toilet bowl are provided with five sets. However, the toilet bowl T and the joint member 1 are provided in one set or the toilet room. A plurality of sets other than the five sets may be provided.

１継手部材２継手本体
２ａ本体部２ｂ枝管部
３接続管３ａ直管部
３ｂ円弧部４蛇腹管
５円筒管６点検口部材
６ａ点検口本体６ｂ点検口
６ｃキャップ部材Ｄ主管部
Ｆ床面Ｔ大便器
Ｔ１便鉢Ｔ２便器排出口
Ｖ縦配管 1 Joint member 2 Joint body 2a Main body 2b Branch pipe 3 Connection pipe 3a Straight pipe 3b Arc part 4 Bellows pipe 5 Cylindrical pipe 6 Inspection port member 6a Inspection port body 6b Inspection port 6c Cap member D Main pipe part F Floor surface T Toilet bowl T1 Toilet bowl T2 Toilet outlet V Vertical pipe

Claims

A joint member of a pipe that processes a solid-liquid mixture.
It consists of a main pipe part installed with a drainage gradient along the horizontal plane and a branch pipe part provided on the side surface of the main pipe part.
The branch pipe portion is a joint member characterized in that it is connected to the main pipe portion from diagonally above in the axial direction of the main pipe portion and is connected to the upstream side of the main pipe portion in a plan view at an acute angle.

A joint member of a pipe that processes a solid-liquid mixture.
It consists of a main pipe part installed with a drainage gradient along the horizontal plane and a branch pipe part provided on the side surface of the main pipe part.
The branch pipe portion is connected to the main pipe portion with an arc in a range of at least 90 degrees from diagonally above the axial direction of the main pipe portion, and is connected to the main pipe portion at an acute angle with respect to the upstream side of the main pipe portion in a plan view. A joint member characterized by being connected.

In the above joint member
The joint member according to claim 1 or 2, wherein the branch pipe portion is connected to the upstream side of the main pipe portion in a plan view at an angle smaller than 45 degrees.

In the above joint member
Claims 1 to claim 1, wherein the main pipe portion and the branch pipe portion are formed so that all the solid-liquid mixture flowing from the branch pipe portion joins the main pipe portion at an angle so as to go in the downstream direction. Item 2. The joint member according to any one of item 3.

The joint member according to any one of claims 1 to 4, wherein the branch pipe portion is connected to a discharge port of a sanitary device via a piping member.

The joint member according to claim 5, wherein at least one of the piping members connecting the branch pipe portion and the discharge port of the sanitary equipment is made of an elastic material having flexibility.

The joint member according to any one of claims 1 to 6, wherein the branch pipe portion is connected to a toilet bowl which is a sanitary device.

In the drainage pipe using the above joint member,
Any one of claims 1 to 7, wherein the pipe on the upstream side of the branch pipe portion is arranged so as to be inverted and connected to the branch pipe portion after passing above the main pipe portion. Drainage piping using the joint members described in 1.

In the drainage pipe using the above joint member,
While connecting multiple joint members,
The drainage pipe using the joint member according to any one of claims 1 to 8, wherein a plurality of main body portions of the joint member are connected in series.

In the drainage pipe using the above joint member,
In addition to piping with a drainage gradient in the main pipe part configured by connecting the main parts of multiple drainage joints,
The drainage pipe using the joint member according to claim 9, wherein the branch pipe portion is connected so as to form an angle slightly different from each other in the axial direction according to the drainage gradient of the main pipe portion.