JP6180829B2

JP6180829B2 - Fitting and drainage mass provided with the same

Info

Publication number: JP6180829B2
Application number: JP2013141906A
Authority: JP
Inventors: 陽和佐野; 稔橋詰; 英己西村
Original assignee: Aron Kasei Co Ltd
Current assignee: Aron Kasei Co Ltd
Priority date: 2013-07-05
Filing date: 2013-07-05
Publication date: 2017-08-16
Anticipated expiration: 2033-07-05
Also published as: JP2015014335A

Description

本発明は、建物の屋内から伸びる排水枝管を、建物の屋外に敷設された排水主管に合流させるための排水マスに接続するための継手及びそれを備えた排水マスに関する。 The present invention relates to a joint for connecting a drainage branch pipe extending from the inside of a building to a drainage mass for joining a drainage main pipe laid outside the building, and a drainage mass provided with the joint.

従来、家屋等の建物にあっては、排水設備の敷設に排水マスが使用されている。
通常、前記排水マスは、受口が設けられたマス本体を有している。そして、一の排水マスの受口と他の排水マスの受口とを連結管で繋ぐ等のように、複数の排水マス相互を管材で繋ぎ合わせることにより、排水主管が建物の屋外で該建物の基礎に沿うように敷設される。
更に前記排水マスには、分岐管が前記マス本体から分岐して設けられており、該分岐管の先端開口を枝管受口としている。そして、該枝管受口にエルボが取り付けられたうえで、建物の屋内から該建物の基礎を介して屋外へと伸びる排水枝管は、該エルボを介して該枝管受口に接続されることにより、前記排水マスにおいて前記排水主管に合流される。
従前の排水マスは、前記排水枝管を接続するための枝管受口が固定された構成となっているが、このような構成の場合、各設置箇所の状況や各排水枝管の接続角度に応じることが出来るように多数種の排水マスを用意したうえでそれぞれを使い分けしなければならない。また配管工事においても、各排水主管や各排水枝管の敷設状況や枝管受口の向きに応じることが出来るように、多数種の継手を用意したうえで使い分けなければならない。そして、斯様な多数種の排水マスの使い分け、多数種の継手の使い分け等が、排水設備の敷設に係る作業の複雑化及び煩雑化を招いている。
そこで、特許文献１〜５に示されるように、排水枝管が接続されるエルボ部の向きを変更可能とすることで、排水設備の敷設に係る作業の簡易化を目的とした排水マスが提供されている。 Conventionally, in buildings such as houses, drainage mass is used for laying drainage facilities.
Usually, the drainage mass has a mass body provided with a receiving port. Then, by connecting a plurality of drainage masses with pipes, such as connecting a receiving port of one drainage mass and a receiving port of another drainage mass with a connecting pipe, the drainage main pipe is connected to the building outside the building. It is laid along the foundation of the.
Further, the drainage mass is provided with a branch pipe branched from the mass body, and a tip opening of the branch pipe serves as a branch pipe receiving port. Then, after the elbow is attached to the branch pipe receptacle, the drainage branch pipe extending from the inside of the building to the outside through the foundation of the building is connected to the branch pipe receptacle through the elbow. As a result, the drainage mass joins the drainage main pipe.
The conventional drainage mass has a configuration in which a branch pipe receiving port for connecting the drainage branch pipe is fixed. In such a configuration, the situation of each installation location and the connection angle of each drainage branch pipe It is necessary to prepare each type of drainage mass so that it can meet the requirements, and use them separately. Also, in piping work, it is necessary to prepare various types of joints and use them properly so that they can respond to the laying situation of each drainage main pipe and each drainage branch pipe and the direction of the branch pipe receptacle. The use of such various types of drainage masses, the use of various types of joints, and the like lead to complications and complications related to the construction of drainage facilities.
Therefore, as shown in Patent Documents 1 to 5, a drainage mass is provided for the purpose of simplifying the work related to the laying of drainage equipment by making it possible to change the direction of the elbow part to which the drainage branch pipe is connected. Has been.

実開平６−１８７９１号公報Japanese Utility Model Publication No. 6-18791 特開平６−１２９００１号公報JP-A-6-129001 特開平７−８３３７７号公報JP-A-7-83377 特開平１０−２６６３２３号公報Japanese Patent Laid-Open No. 10-266323 特開平１０−３０７７０号公報Japanese Patent Laid-Open No. 10-30770

ところが、上記従来構成の排水マスは、エルボ部の向きを変更可能とするため、主として枝管受口とエルボ部とを回動自在に繋いでいるが、該エルボ部を回転自在に繋ぐ該枝管受口を含めて該マス本体の全体を略一体的に成形している。このため、該マス本体を成形するための金型が複雑になる傾向がある。更に排水マスは上記したように各設置箇所の状況や各排水枝管の接続角度に応じることが出来るように多数種を用意しなければならず、製造の繁雑化と製造コストの高騰が問題になっている。
また通常の排水主管は、家屋の基礎に沿って敷設されており、排水枝管は該基礎から該排水主管に向かって突出しており、排水主管の管軸と排水枝管の管軸とは平面視で略直交している。一方、上記従来構成の排水マスは、枝管受口でエルボ部が回動する構成であるため、該エルボ部は該枝管受口の開口方向に伸びる回動軸を中心に向きを変える。従って、該枝管受口の開口方向を、例えば排水主管の管軸に対して４５度傾けたマス本体の場合は、該エルボ部が該基礎から突出する該排水枝管に対し、該排水枝管が接続される先端開口を斜めに回転させてしまうことになる。このため、角度の異なる複数種のエルボを選択し、繋ぎ合わせるという繁雑な作業が必要になり、却って該排水枝管の接続作業が困難になるという問題があった。
本発明は、このような従来技術に存在する問題点に着目してなされたものである。その目的とするところは、製造が簡易であって、排水枝管の接続に係る作業の簡易化を図ることができる継手及びそれを備えた排水マスを提供することにある。 However, the drainage mass of the above-described conventional configuration mainly connects the branch pipe receiving port and the elbow part in a rotatable manner so that the direction of the elbow part can be changed. However, the branch connecting the elbow part in a rotatable manner. The entire mass body including the tube receptacle is formed substantially integrally. For this reason, there exists a tendency for the metal mold | die for shape | molding this mass main body to become complicated. Furthermore, as described above, a large number of drainage masses must be prepared so as to be able to respond to the situation of each installation location and the connection angle of each drainage branch pipe. It has become.
The normal drainage main pipe is laid along the foundation of the house, the drainage branch pipe projects from the foundation toward the drainage main pipe, and the drainage main pipe axis and the drainage branch pipe axis are flat. It is almost orthogonal in view. On the other hand, the drainage mass of the above-described conventional configuration is configured such that the elbow part rotates at the branch pipe receiving port, and therefore the elbow part changes its direction around a rotation axis extending in the opening direction of the branch pipe receiving port. Therefore, in the case of a mass main body whose opening direction of the branch pipe receptacle is inclined by 45 degrees with respect to the pipe axis of the drain main pipe, for example, the drain branch is in the drain branch pipe from which the elbow part protrudes from the foundation. The tip opening to which the tube is connected is rotated obliquely. For this reason, there has been a problem that a complicated operation of selecting and connecting elbows having different angles and connecting them becomes difficult.
The present invention has been made paying attention to such problems existing in the prior art. The purpose of the invention is to provide a joint that is simple to manufacture and that can simplify the work related to the connection of drainage branch pipes, and a drainage mass provided with the joint.

上記従来の問題点を解決する手段として、請求項１に記載の継手の発明は、建物の屋外に敷設された排水主管に該建物の屋内から伸びる排水枝管を合流させるべく設けられた排水マスに対して、該排水枝管を接続するための継手であって、前記排水マスは、前記排水主管が接続される主管受口と、前記排水枝管が接続される枝管受口とが設けられたマス本体を有しているものであり、前記枝管受口に挿着される接続筒体と、前記排水枝管が接続されるエルボ部とを有し、前記接続筒体の内周に嵌合部を形成し、前記エルボ部の端部に嵌入部を形成し、該嵌合部に嵌入部を嵌挿することで、前記接続筒体と前記エルボ部とを連結するとともに、該嵌合部と該嵌入部を相互に摺動自在とすることにより、前記接続筒体に対して前記エルボ部を回動可能に構成し、前記接続筒体は、管軸が前記枝管受口の開口方向と同方向に伸びる第１直管部と、管軸が前記エルボ部の回動軸と同一線上に伸びる第２直管部と、該第１直管部及び該第２直管部の間をつなぐ曲管部とを有し、上記エルボ部の基端部の外周面上には、シールリングが嵌着され、前記第２直管部の先端面には凸体が設けられるとともに、前記エルボ部の外周面上で該凸体と対応する位置にはストッパーが設けられており、前記凸体に前記ストッパーが当接することにより、前記接続筒体に対して、前記エルボ部が必要以上に回動することを抑制し、更に前記接続筒体に対する前記エルボ部の回動軸が前記排水主管の管軸と直交するように該エルボ部の回動方向を設定することを要旨とする。
請求項２に記載の発明は、請求項１に記載の継手の発明において、前記第１直管部を、平面視における前記排水主管の管軸から前記エルボ部先端の開口中心までの長さを調節する長さ調節部として用いることを要旨とする。
請求項３に記載の発明は、請求項１又は請求項２に記載の継手の発明において、前記枝管用受口の開口方向は、前記排水主管の管軸に対して４５度傾斜しており、前記接続筒体の曲管部は、該枝管用受口の開口方向に応じた曲げ角度に設定されていることを要旨とする。
請求項４に記載の排水マスの発明は、請求項１から請求項３のうち何れか一項に記載の継手を備えたことを要旨とする。 As a means for solving the above-mentioned conventional problems, the joint invention according to claim 1 is a drainage mass provided to join a drainage main pipe laid outside a building with a drainage branch pipe extending from the inside of the building. The drainage mass is provided with a main pipe port to which the drainage main pipe is connected and a branch pipe port to which the drainage branch pipe is connected. A connecting cylinder inserted into the branch pipe receiving port, and an elbow part to which the drainage branch pipe is connected, and an inner periphery of the connecting cylinder Forming a fitting portion, forming an insertion portion at an end of the elbow portion, and inserting the insertion portion into the fitting portion, thereby connecting the connecting cylinder and the elbow portion, and The elbow part is rotated with respect to the connecting cylinder by making the fitting part and the fitting part slidable with respect to each other. The connecting cylinder includes a first straight pipe portion having a tube axis extending in the same direction as the opening direction of the branch pipe receiving port, and a tube shaft extending in the same line as the rotating shaft of the elbow portion. 2 straight pipe parts and a curved pipe part connecting between the first straight pipe part and the second straight pipe part, and a seal ring is fitted on the outer peripheral surface of the base end part of the elbow part A convex body is provided on the distal end surface of the second straight pipe portion, and a stopper is provided at a position corresponding to the convex body on the outer peripheral surface of the elbow portion, and the stopper is provided on the convex body. Prevents the elbow part from rotating more than necessary with respect to the connection cylinder, and the rotation axis of the elbow part relative to the connection cylinder is the tube axis of the drain main pipe. The gist is to set the rotation direction of the elbow part to be orthogonal.
According to a second aspect of the present invention, in the joint invention according to the first aspect, the length of the first straight pipe portion from the pipe axis of the drainage main pipe in a plan view to the center of the opening of the elbow portion is set. The gist is to use it as a length adjusting section to be adjusted.
The invention according to claim 3 is the joint invention according to claim 1 or 2, wherein an opening direction of the branch pipe receptacle is inclined by 45 degrees with respect to a pipe axis of the drainage main pipe, The gist of the present invention is that the bent pipe portion of the connecting cylinder is set at a bending angle corresponding to the opening direction of the branch pipe receptacle.
The gist of the invention of the drainage mass according to claim 4 is provided with the joint according to any one of claims 1 to 3.

〔作用〕
本発明の継手は、排水マスのマス本体に設けられた枝管受口の内側に挿着される接続筒体と、排水枝管を接続するエルボ部とを、回動可能に連結して構成されたものであり、更に該エルボ部の回動方向は、該エルボ部の回動軸が排水主管の管軸と直交するように設定されている。このため、該エルボ部を回動させて排水枝管の方向へ向けることにより、該排水枝管と該エルボ部とを最短距離で繋ぐことができ、該排水枝管の接続に係る作業の簡易化を図ることができる。
更に上記継手は、排水マスのマス本体で使用する金型とは異なる金型を使用し、該マス本体と別々に成形することが可能であるため、多数種のマス本体で該継手として使用する部品を使い回すことができる。従って、排水枝管を接続できるように該排水マスを選ぶ必要が無く、また該排水枝管の接続も従前のものに比して遜色がなく、更に部品点数の低減が図られていることから、製造の簡易化を図ることができ、特に排水マスの製造コストの高騰を抑えることができる。
また上記継手においては、前記接続筒体に曲管部を設けた場合、該曲管部の曲げ角度を前記枝管受口の開口方向に応じるように設定することで、如何なる角度で開口する枝管受口にも柔軟に対応することができ、前記エルボ部の回動軸を前記排水主管の管軸と好適に直交させることができ、一般的に使用される枝管用受口の開口方向が前記排水主管の管軸に対して４５度傾斜したマス本体にも確実に対応することができる。
また上記継手においては、管軸が前記枝管受口の開口方向と同方向に伸びる第１直管部を長さ調節部として用いることにより、該第１直管部の端部を切断等することで、該継手の内径の変化や前記エルボ部の平面視における差し出し方向の変化を防止しつつ、該エルボ部の位置を前記排水枝管の位置に応じて簡易に変更調節することができる。
本発明の排水マスによれば、既存の金型を使用して成形しつつも、上記構成の継手を備えることで、排水枝管を接続するエルボ部の回動構造の付与と、該エルボ部の回動方向の設定を簡便に行うことができ、製造が簡易であって、接続に係る作業の簡易化を図ることができる。 [Action]
The joint according to the present invention is configured by connecting a connecting cylinder inserted into the inside of a branch pipe receptacle provided in a mass main body of a drainage mass and an elbow part connecting the drainage branch pipe in a rotatable manner. Further, the rotation direction of the elbow part is set so that the rotation axis of the elbow part is orthogonal to the tube axis of the drainage main pipe. For this reason, the drainage branch pipe and the elbow part can be connected in the shortest distance by rotating the elbow part toward the drainage branch pipe, and the work relating to the connection of the drainage branch pipe can be simplified. Can be achieved.
Furthermore, since the above-mentioned joint can be molded separately from the mold used for the mass body of the drainage mass and can be molded separately from the mass body, it is used as the joint for many types of mass bodies. Parts can be reused. Therefore, it is not necessary to select the drainage mass so that the drainage branch pipe can be connected, the drainage branch pipe connection is not inferior to the conventional one, and the number of parts is further reduced. Therefore, simplification of production can be achieved, and in particular, an increase in the production cost of the drainage mass can be suppressed.
Further, in the above joint, when a bent pipe portion is provided in the connecting cylinder, the bending angle of the bent pipe portion is set so as to correspond to the opening direction of the branch pipe receptacle, so that the branch opening at any angle can be achieved. It is possible to flexibly correspond to the pipe receptacle, the rotation axis of the elbow part can be suitably orthogonal to the pipe axis of the drainage main pipe, and the opening direction of the commonly used branch pipe receptacle is A mass body inclined by 45 degrees with respect to the pipe axis of the drainage main pipe can also be reliably handled.
In the above joint, the end of the first straight pipe portion is cut by using the first straight pipe portion whose tube axis extends in the same direction as the opening direction of the branch pipe receptacle as a length adjusting portion. Thus, it is possible to easily change and adjust the position of the elbow part according to the position of the drainage branch pipe while preventing the change of the inner diameter of the joint and the change of the insertion direction in the plan view of the elbow part.
According to the drainage mass of the present invention, the elbow part is provided with a joint having the above-described configuration while being molded using an existing mold, and the elbow part is turned to connect the drainage branch pipe, and the elbow part The rotation direction can be easily set, the manufacturing is simple, and the connection work can be simplified.

〔効果〕
本発明では、製造が簡易でありながら、排水枝管の位置に応じるようにエルボ部の上下位置を変更することができるから、排水枝管の接続に係る作業の簡易化を図ることができる。〔effect〕
In the present invention, although the manufacture is simple, the vertical position of the elbow portion can be changed according to the position of the drainage branch pipe, so that the work related to the connection of the drainage branch pipe can be simplified.

第１実施形態の排水マスを示す平面図。The top view which shows the drainage mass of 1st Embodiment. 第１実施形態のマス本体を示す平面図。The top view which shows the mass main body of 1st Embodiment. 第１実施形態の継手を示す（ａ）は平面図、（ｂ）は分解状態の断面図。(A) which shows the coupling of 1st Embodiment is a top view, (b) is sectional drawing of a decomposition | disassembly state. 第２実施形態の排水マスを示す分解状態の平面図。The top view of the decomposition | disassembly state which shows the waste-water mass of 2nd Embodiment. 第２実施形態の継手を示す分解状態の断面図。Sectional drawing of the decomposition | disassembly state which shows the coupling of 2nd Embodiment. 第３実施形態の排水マスを示す分解状態の平面図。The top view of the decomposition state which shows the drainage mass of 3rd Embodiment. （ａ），（ｂ）は別形態の接続筒体を示す断面図。(A), (b) is sectional drawing which shows the connection cylinder of another form.

〔第１実施形態〕
本発明の排水マスを具体化した第１実施形態を図面に基づき説明する。
図１に示すように、排水マス１０は、建物の基礎Ｆに沿って敷設された屋外の排水主管ＭＤに、屋内から該基礎Ｆを貫通して敷設された排水枝管ＳＤを合流させるために使用するものである。該排水マス１０は、前記排水主管ＭＤを構成するマス本体１１と、前記排水枝管ＳＤを接続するべく該マス本体１１に取り付けられた継手１２とを有している。 [First Embodiment]
1st Embodiment which actualized the waste_water | drain mass of this invention is described based on drawing.
As shown in FIG. 1, the drainage mass 10 is used to join a drainage branch pipe SD laid through the foundation F from the inside to an outdoor drainage main pipe MD laid along the foundation F of the building. It is what you use. The drainage mass 10 includes a mass body 11 constituting the drainage main pipe MD, and a joint 12 attached to the mass body 11 to connect the drainage branch pipe SD.

前記マス本体１１の構成を説明する。
図２に示すように、マス本体１１は、両端が排水主管ＭＤの管軸Ａｔの伸びる方向に開口された真っ直ぐな円筒状に形成されている。該マス本体１１の両端部は、中間部に比べて拡径されており、該拡径された両端部の開口の内側が主管受口１３とされている。該主管受口１３には、排水マス１０同士を繋ぐ連結管が嵌入接続される。よって前記排水主管ＭＤの管軸Ａｔは該マス本体１１の中心を通るように伸びる。
また前記マス本体１１には、主管受口１３の他にマス受口１４が設けられており、該マス受口１４を介してマス本体１１の内部を清掃したり確認したりすることができるようになっている。
前記マス本体１１には、円筒状の分岐筒１５が、該マス本体１１の周壁から突出して形成されている。該分岐筒１５の先端開口は、拡径されており、前記継手１２を接続するための枝管受口１６とされている。該分岐筒１５は、前記排水主管ＭＤの管軸Ａｔの伸びる方向と４５度の角度をなして伸びるように形成されている。従って、該枝管受口１６は、前記排水主管ＭＤの管軸Ａｔに対して４５度傾いている。 The configuration of the mass body 11 will be described.
As shown in FIG. 2, the mass body 11 is formed in a straight cylindrical shape whose both ends are opened in the direction in which the tube axis At of the drain main pipe MD extends. Both end portions of the mass body 11 are expanded in diameter compared to the intermediate portion, and the inside of the opening of the expanded both end portions is a main pipe receiving port 13. A connecting pipe that connects the drainage masses 10 is fitted and connected to the main pipe receiving port 13. Therefore, the pipe axis At of the drainage main pipe MD extends so as to pass through the center of the mass body 11.
The mass body 11 is provided with a mass receiving port 14 in addition to the main pipe receiving port 13 so that the inside of the mass main body 11 can be cleaned and checked through the mass receiving port 14. It has become.
A cylindrical branch tube 15 is formed on the mass body 11 so as to protrude from the peripheral wall of the mass body 11. The distal end opening of the branch cylinder 15 is enlarged in diameter and serves as a branch pipe receiving port 16 for connecting the joint 12. The branch cylinder 15 is formed to extend at an angle of 45 degrees with the direction in which the pipe axis At of the drainage main pipe MD extends. Accordingly, the branch pipe receiving port 16 is inclined 45 degrees with respect to the pipe axis At of the drainage main pipe MD.

前記継手１２の構成を説明する。該継手１２は、上記枝管受口１６に接続される筒状の接続筒体１７と、該接続筒１７の先端に設けられたエルボ部１８とを有している。そして該エルボ部１８は、その一端側（先端側）の開口１８Ａに前記排水枝管ＳＤが直接的に、あるいはエルボ等を介して間接的に繋げられる（図１参照）。
図３（ａ），（ｂ）に示すように、前記継手１２において、前記接続筒体１７と前記エルボ部１８とは、該接続筒体１７に対して該エルボ部１８を回動可能とするべく構成されている。
すなわち、前記接続筒体１７は、基端側（マス本体１１側）に配される円筒状の第１直管部１７Ａと、先端側（エルボ部１８側）に配される円筒状の第２直管部１７Ｂと、該第１直管部１７Ａ及び該第２直管部１７Ｂの間をつなぐ曲管部１７Ｃとを有している。該接続筒体１７においては、該第１直管部１７Ａが前記マス本体１１の枝管受口１６の内側に挿着されるように構成されている。また該第２直管部１７Ｂの内径は、該第１直管部１７Ａの内径よりも拡径されており、該第２直管部１７Ｂの内側に前記エルボ部１８の他端部である基端部１８Ｂが嵌入されるように構成されている。
前記第２直管部１７Ｂの先端で内周面には、爪状をなす嵌合部２１が周方向へ等間隔おきに複数凸設されている。また該第２直管部１７Ｂの基端で内周面には、段差部２２が形成されており、該段差部２２に前記エルボ部１８の基端部１８Ｂの端面が当接することにより、該エルボ部１８の基端部１８Ｂの該接続筒体１７に対する嵌入量を規制している。 The configuration of the joint 12 will be described. The joint 12 includes a cylindrical connection cylinder 17 connected to the branch pipe receiving port 16 and an elbow portion 18 provided at the tip of the connection cylinder 17. The elbow 18 is connected to the opening 18A on one end (tip side) thereof directly or indirectly via an elbow or the like (see FIG. 1).
As shown in FIGS. 3A and 3B, in the joint 12, the connecting cylinder 17 and the elbow 18 enable the elbow 18 to rotate with respect to the connecting cylinder 17. It is configured accordingly.
That is, the connecting cylinder 17 includes a cylindrical first straight pipe portion 17A disposed on the base end side (mass body 11 side) and a cylindrical second tube disposed on the distal end side (elbow portion 18 side). It has a straight pipe portion 17B and a curved pipe portion 17C that connects between the first straight pipe portion 17A and the second straight pipe portion 17B. In the connecting cylinder 17, the first straight pipe portion 17 </ b> A is configured to be inserted inside the branch pipe receiving port 16 of the mass body 11. Further, the inner diameter of the second straight pipe portion 17B is larger than the inner diameter of the first straight pipe portion 17A, and a base which is the other end portion of the elbow portion 18 inside the second straight pipe portion 17B. It is comprised so that the edge part 18B may be inserted.
A plurality of claw-like fitting portions 21 are provided on the inner peripheral surface at the tip of the second straight pipe portion 17B at regular intervals in the circumferential direction. Further, a step portion 22 is formed on the inner peripheral surface at the base end of the second straight pipe portion 17B, and the end surface of the base end portion 18B of the elbow portion 18 abuts on the step portion 22, The insertion amount of the base end portion 18 </ b> B of the elbow portion 18 with respect to the connection cylindrical body 17 is regulated.

一方、エルボ部１８の基端部１８Ｂの外周面には、凸状をなす嵌入部２３が等間隔おきに複数凸設されている。そして、上記第２直管部１７Ｂの内側に該エルボ部１８の基端部１８Ｂが嵌入される際に、上記嵌合部２１と該嵌入部２３とが相互に嵌合することにより、上記接続筒体１７と該エルボ部１８とが連結されている。
また上記第２直管部１７Ｂの先端で内周面には、上記嵌合部２１に隣接して凹溝２４が形成されている。該凹溝２４に上記嵌入部２３が収容されることにより、該嵌入部２３と上記嵌合部２１は相互に摺動自在とされており、該接続筒体１７に対して該エルボ部１８が回動可能となっている。 On the other hand, on the outer peripheral surface of the base end portion 18B of the elbow portion 18, a plurality of convex fitting portions 23 are provided at regular intervals. And when the base end part 18B of the elbow part 18 is fitted inside the second straight pipe part 17B, the fitting part 21 and the fitting part 23 are fitted to each other, whereby the connection The cylindrical body 17 and the elbow part 18 are connected.
A concave groove 24 is formed adjacent to the fitting portion 21 on the inner peripheral surface at the tip of the second straight pipe portion 17B. By accommodating the fitting portion 23 in the concave groove 24, the fitting portion 23 and the fitting portion 21 are slidable with respect to each other. It can be turned.

上記エルボ部１８の基端部１８Ｂの外周面上には、水漏れを防止するためのシールリング２５が嵌着されている。加えて、前記第２直管部１７Ｂの先端面には凸体２６が設けられるとともに、前記エルボ部１８の外周面上で該凸体２６と対応する位置にはストッパー２７が設けられており、該凸体２６に該ストッパー２７が当接することにより、該接続筒体１７に対して該エルボ部１８が必要以上に回動することを抑制している。
なお上記凸体２６は、前記第２直管部１７Ｂの先端面に１８０度間隔で２箇所に設けられており、図１に示す状態でエルボ部１８が回動軸Ａｒを中心に左右方向でそれぞれ９０度を超えて回動しないように規制することで、排水の逆流を抑制している。 On the outer peripheral surface of the base end portion 18B of the elbow portion 18, a seal ring 25 for preventing water leakage is fitted. In addition, a convex body 26 is provided on the distal end surface of the second straight pipe portion 17B, and a stopper 27 is provided on the outer peripheral surface of the elbow portion 18 at a position corresponding to the convex body 26, When the stopper 27 comes into contact with the convex body 26, the elbow 18 is prevented from rotating more than necessary with respect to the connecting cylinder 17.
The convex body 26 is provided at two positions at an interval of 180 degrees on the distal end surface of the second straight pipe portion 17B. In the state shown in FIG. By regulating so as not to rotate more than 90 degrees respectively, the backflow of drainage is suppressed.

前記接続筒体１７に対する前記エルボ部１８の回動方向は、該エルボ部１８の回動軸Ａｒが前記排水主管ＭＤの管軸Ａｔと直交する方向となるように設定されている（図１参照）。
図３（ｂ）に示すように、前記エルボ部１８は、上記接続筒体１７の第２直管部１７Ｂの周方向に回動するように構成されていることから、該第２直管部１７Ｂの管軸は該エルボ部１８の回動軸Ａｒと同一線上に伸びる。一方、上記接続筒体１７の第１直管部１７Ａは、上記マス本体１１の枝管受口１６の内側に挿着されるものであるため、該第１直管部１７Ａの管軸Ａ_１は、該枝管受口１６の開口方向と同方向に伸びている。
該接続筒体１７は、該接続筒体１７に対する前記エルボ部１８の回動軸Ａｒが前記排水主管ＭＤの管軸Ａｔと直交するように該エルボ部１８の回動方向を設定するための角度調整手段としての機能を有している。すなわち、本実施形態の接続筒体１７は、前記曲管部１７Ｃが設けられることによって角度調整手段としての機能を奏し、該曲管部１７Ｃの曲げ角度θが所定角度に設定されることにより、前記エルボ部１８の回動軸Ａｒを前記排水主管ＭＤの管軸Ａｔと直交する方向としている。本実施形態では、具体的に、該第１直管部１７Ａの管軸Ａ_１は、該排水主管ＭＤの管軸Ａｔに対して４５度傾いており、前記エルボ部１８の回動軸Ａｒを該排水主管ＭＤの管軸Ａｔに直交させるべく、該曲管部１７Ｃの曲げ角度θは２２．５度に設定されている。 The rotation direction of the elbow part 18 with respect to the connecting cylinder 17 is set so that the rotation axis Ar of the elbow part 18 is perpendicular to the tube axis At of the drainage main pipe MD (see FIG. 1). ).
As shown in FIG. 3B, the elbow 18 is configured to rotate in the circumferential direction of the second straight pipe portion 17B of the connecting cylinder 17, so that the second straight pipe portion The tube axis 17B extends on the same line as the rotation axis Ar of the elbow 18. On the other hand, since the first straight pipe portion 17A of the connection cylinder 17 is inserted into the branch pipe receiving port 16 of the mass body 11, the tube axis A _{1 of the} first straight pipe portion 17A. Extends in the same direction as the opening direction of the branch pipe receiving port 16.
The connection cylinder 17 is an angle for setting the rotation direction of the elbow 18 so that the rotation axis Ar of the elbow 18 relative to the connection cylinder 17 is orthogonal to the tube axis At of the drainage main pipe MD. It has a function as an adjusting means. That is, the connecting tube body 17 of the present embodiment functions as an angle adjusting means by providing the curved pipe portion 17C, and the bending angle θ of the curved pipe portion 17C is set to a predetermined angle. The rotation axis Ar of the elbow part 18 is set to a direction orthogonal to the pipe axis At of the drainage main pipe MD. In the present embodiment, specifically, the tube axis A ₁ of the first straight pipe portion 17A is inclined 45 degrees with respect to the tube axis At of drainage main MD, a rotation axis Ar of the elbow portion 18 The bending angle θ of the curved pipe portion 17C is set to 22.5 degrees so as to be orthogonal to the pipe axis At of the drainage main pipe MD.

排水設備にあっては、複数のマス本体１１を基礎Ｆに沿って所定間隔おきに配し、該マス本体１１の枝管受口１６に上記継手１２の接続筒体１７の第１直管部１７Ａを挿着し、該第１直管部１７Ａを該枝管受口１６に接着等することにより、排水マス１０を構成する。
上記排水マス１０の構成においては、前記第１直管部１７Ａを長さ調節部として用いることにより、前記基礎Ｆから伸びる前記排水枝管ＳＤの位置に応じて、前記エルボ部１８を所望の位置に配置することができる。つまり、該第１直管部１７Ａを、その基端部を切除する等して所定の長さに調節することにより、前記マス本体１１から前記エルボ部１８までの長さ、具体的には前記排水主管ＭＤの管軸Ａｔから該エルボ部１８の先端の開口中心１８Ｃまでの長さを変更し、該エルボ部１８を所望の位置に変更調節することが可能である。また該第１直管部１７Ａは、直管状を為しているため、切断に際して煩雑な斜め切りする必要が無く、該接続筒体１７の先端に取り付けられた該エルボ部１８は、前記排水主管ＭＤの管軸Ａｔの伸びる方向と直交する方向へ常に差し出される。
上記排水マス１０にあっては、上記継手１２の前記エルボ部１８が前記接続筒体１７に対して回動可能に構成されていることから、例えば図１に示すように排水主管ＭＤの管軸Ａｔの伸びる方向で排水枝管ＳＤの端部とエルボ部１８とがずれている場合であっても、排水枝管ＳＤの端部方向を向くように該エルボ部１８を回動させることで、該排水枝管ＳＤの端部と該エルボ部１８とを最短距離で繋ぐことができる。 In the drainage facility, a plurality of mass bodies 11 are arranged at predetermined intervals along the foundation F, and the first straight pipe portion of the connecting cylinder 17 of the joint 12 is connected to the branch pipe receiving port 16 of the mass body 11. The drainage mass 10 is configured by inserting 17A and bonding the first straight pipe portion 17A to the branch pipe receiving port 16 or the like.
In the configuration of the drainage mass 10, the elbow portion 18 is moved to a desired position according to the position of the drainage branch SD extending from the foundation F by using the first straight pipe portion 17 </ b> A as a length adjusting portion. Can be arranged. That is, by adjusting the first straight pipe portion 17A to a predetermined length by cutting off the base end portion thereof, the length from the mass body 11 to the elbow portion 18, specifically, It is possible to change and adjust the length of the elbow 18 to a desired position by changing the length from the pipe axis At of the drain main pipe MD to the opening center 18C of the tip of the elbow 18. Further, since the first straight pipe portion 17A has a straight tube shape, there is no need to make a complicated oblique cut at the time of cutting, and the elbow portion 18 attached to the tip of the connecting cylinder 17 is connected to the drain main pipe MD. The tube axis At is always extended in a direction perpendicular to the extending direction.
In the drainage mass 10, since the elbow portion 18 of the joint 12 is configured to be rotatable with respect to the connection cylinder 17, for example, as shown in FIG. 1, the pipe shaft of the drainage main pipe MD Even when the end of the drainage branch SD is displaced from the elbow 18 in the direction in which At extends, by rotating the elbow 18 so as to face the end of the drainage branch SD, The end of the drainage branch SD and the elbow 18 can be connected at the shortest distance.

〔第２実施形態〕
本発明の排水マスを具体化した第２実施形態を図面に基づき説明する。なお、これ以降の実施形態については、上記第１実施形態と異なる点を中心に説明する。
図４に示すように、本実施形態の排水マス１０Ａにおいて、マス本体１１Ａは、両端が排水主管ＭＤの管軸Ａｔの伸びる方向に開口された真っ直ぐな円筒状に形成されている。該マス本体１１の両端部は、中間部に比べて拡径されており、該拡径された両端部の開口のうち、一端側（図４中で右端側）が主管受口１３とされ、他端側（図４中で左端側）が継手１２Ａを接続するための枝管受口１６とされている。従って、該枝管受口１６の開口方向は、前記排水主管ＭＤの管軸Ａｔと同方向である。
図４及び図５に示すように、前記排水マス１０Ａの継手１２Ａにおいて、エルボ部１８は、上記第１実施形態のものと同一構成である。
一方、該継手１２Ａの接続筒体１７は、曲管部１７Ｃの他は、上記第１実施形態のものと同一構成である。該接続筒体１７は、前記曲管部１７Ｃの曲げ角度θを所定角度に設定することにより、前記エルボ部１８の回動軸Ａｒを前記排水主管ＭＤの管軸Ａｔと直交する方向とするための角度調整手段としての機能を奏する。本実施形態では、具体的に、該第１直管部１７Ａの管軸Ａ_１は、該排水主管ＭＤの管軸Ａｔと同方向に伸びており、前記エルボ部１８の回動軸Ａｒを該排水主管ＭＤの管軸Ａｔに直交させるべく、該曲管部１７Ｃの曲げ角度θは４５度に設定されている。
従って、本実施形態においては、継手１２Ａの成形において、エルボ部１８は全く同じものが使用可能であり、一方、接続筒体１７においても、複雑な構造の第２直管部１７Ｂは上記第１実施形態と同じ構成であるから、曲管部１７Ｃのみ変更するように金型等を工夫することにより、簡便に製造することが可能である。 [Second Embodiment]
A second embodiment embodying the drainage mass of the present invention will be described with reference to the drawings. In the following embodiments, differences from the first embodiment will be mainly described.
As shown in FIG. 4, in the drainage mass 10A of the present embodiment, the mass body 11A is formed in a straight cylindrical shape whose both ends are opened in the direction in which the tube axis At of the drainage main pipe MD extends. Both end portions of the mass body 11 are expanded in diameter compared to the intermediate portion, and one end side (the right end side in FIG. 4) of the openings at the expanded end portions is the main pipe receiving port 13. The other end side (the left end side in FIG. 4) is a branch pipe receiving port 16 for connecting the joint 12A. Therefore, the opening direction of the branch pipe receiving port 16 is the same direction as the pipe axis At of the drainage main pipe MD.
As shown in FIGS. 4 and 5, in the joint 12A of the drainage mass 10A, the elbow portion 18 has the same configuration as that of the first embodiment.
On the other hand, the connecting cylinder 17 of the joint 12A has the same configuration as that of the first embodiment except for the curved pipe portion 17C. The connecting cylinder 17 sets the bending angle θ of the curved pipe portion 17C to a predetermined angle so that the rotation axis Ar of the elbow part 18 is orthogonal to the pipe axis At of the drainage main pipe MD. It functions as the angle adjustment means. In the present embodiment, specifically, the tube axis A ₁ of the first straight pipe portion 17A is extended to the tube axis At the same direction of the drainage main MD, the pivoting axis Ar of the elbow portion 18 The bending angle θ of the curved pipe portion 17C is set to 45 degrees so as to be orthogonal to the pipe axis At of the drainage main pipe MD.
Therefore, in the present embodiment, the same elbow portion 18 can be used in forming the joint 12A. On the other hand, the second straight pipe portion 17B having a complicated structure is also used in the connecting cylinder 17 as the first straight pipe portion 17B. Since it is the same structure as embodiment, it can manufacture simply by devising a metal mold | die etc. so that only the curved pipe part 17C may be changed.

〔第３実施形態〕
図６に示すように、本実施形態の排水マス１０Ａにおいて、マス本体１１Ｂは、両端が排水主管ＭＤの管軸Ａｔの伸びる方向に開口された真っ直ぐな円筒状に形成され、両端部の開口の内側が主管受口１３とされている。また該マス本体１１Ｂには、円筒状の分岐筒１５が、該マス本体１１の周壁から突出して形成され、該分岐筒１５の先端開口が枝管受口１６とされている。該分岐筒１５は、前記排水主管ＭＤの管軸Ａｔの伸びる方向と直交して伸びるように形成されている。従って、該枝管受口１６は、前記排水主管ＭＤの管軸Ａｔに対して９０度傾いている。
上記排水マス１０Ｂの継手１２Ｂにおいて、エルボ部１８は、上記第１実施形態のものと同一構成である。
一方、継手１２Ｂの接続筒体１７は、前記エルボ部１８の回動軸Ａｒを前記排水主管ＭＤの管軸Ａｔと直交する方向とするための角度調整手段であるから、曲管部を省略し、第１直管部１７Ａと第２直管部１７Ｂとで構成されている他は、上記第１実施形態のものと同一構成である。つまり、本実施形態では、上記枝管受口１６の開口方向が排水主管ＭＤの管軸Ａｔの伸びる方向と直交する方向であるため、該第１直管部１７Ａの管軸は、前記エルボ部１８の回動軸Ａｒと同方向に伸びるため、曲管部１７Ｃを設けずともよい。
従って、本実施形態においては、継手１２Ｂの成形において、エルボ部１８は全く同じものが使用可能であり、一方、接続筒体１７においても、複雑な構造の第２直管部１７Ｂは上記第１実施形態と同じ構成であるから、曲管部１７Ｃのみ省略するように金型等を工夫することにより、簡便に製造することが可能である。 [Third Embodiment]
As shown in FIG. 6, in the drainage mass 10A of the present embodiment, the mass body 11B is formed in a straight cylindrical shape having both ends opened in the direction in which the tube axis At of the drainage main pipe MD extends. The inside is a main pipe receiving port 13. A cylindrical branch cylinder 15 is formed on the mass body 11B so as to protrude from the peripheral wall of the mass body 11, and a distal end opening of the branch cylinder 15 serves as a branch pipe receiving port 16. The branch cylinder 15 is formed to extend perpendicular to the direction in which the pipe axis At of the drainage main pipe MD extends. Accordingly, the branch pipe receiving port 16 is inclined by 90 degrees with respect to the pipe axis At of the drainage main pipe MD.
In the joint 12B of the drainage mass 10B, the elbow part 18 has the same configuration as that of the first embodiment.
On the other hand, the connecting cylinder 17 of the joint 12B is an angle adjusting means for setting the rotation axis Ar of the elbow part 18 to a direction orthogonal to the pipe axis At of the drainage main pipe MD, and therefore the curved pipe part is omitted. The configuration is the same as that of the first embodiment except that the first straight pipe portion 17A and the second straight pipe portion 17B are configured. That is, in this embodiment, since the opening direction of the branch pipe receptacle 16 is a direction orthogonal to the direction in which the pipe axis At of the drainage main pipe MD extends, the pipe axis of the first straight pipe portion 17A is the elbow portion. Since it extends in the same direction as the 18 rotation axis Ar, the curved pipe portion 17C may not be provided.
Therefore, in the present embodiment, the same elbow part 18 can be used in forming the joint 12B. On the other hand, also in the connecting cylinder 17, the second straight pipe part 17B having a complicated structure is the first elbow. Since it is the same structure as embodiment, it can manufacture simply by devising a metal mold | die etc. so that only the curved pipe part 17C may be abbreviate | omitted.

〔変更例〕
上記の各実施形態において、第１直管部１７Ａの長さは特に限定されず、マス本体１１，１１Ａ，１１Ｂに設けられた枝管受口１６の内側に挿着可能な長さを有していればよく、例えば図７（ａ）に示すように、第１実施形態のものに比べて短くしてもよい。
上記の各実施形態において、接続筒体１７は、必ずしも枝管受口１６の内側に挿着されることに限らず、例えば図７（ｂ）に示すように、分岐筒１５の先端開口を拡径することなく枝管受口１６とし、一方、接続筒体１７においては第１直管部１７Ａの基端に拡径部１７Ｄを設け、該拡径部１７Ｄを枝管受口１６の外側に被せるようにして、接続筒体１７を枝管受口１６に挿着してもよい。 [Example of change]
In each of the above-described embodiments, the length of the first straight pipe portion 17A is not particularly limited, and has a length that can be inserted inside the branch pipe receiving port 16 provided in the mass bodies 11, 11A, 11B. For example, as shown in FIG. 7A, it may be shorter than that of the first embodiment.
In each of the above-described embodiments, the connecting cylinder 17 is not necessarily inserted inside the branch pipe receiving port 16, and for example, as shown in FIG. The diameter of the branch pipe receiving port 16 is made without any diameter. On the other hand, the connecting cylinder 17 is provided with an enlarged diameter portion 17D at the proximal end of the first straight pipe portion 17A, and the enlarged diameter portion 17D is provided outside the branch pipe receiving port 16. The connecting cylinder 17 may be inserted into the branch pipe receiving port 16 so as to be covered.

本発明にあっては、製造が簡易であって、排水枝管の接続に係る作業の簡易化を図ることができるから、産業上の利用可能性がある。 In this invention, since manufacture is simple and can simplify the operation | work which concerns on the connection of a drainage branch pipe, there exists industrial applicability.

１０排水マス
１１マス本体
１２継手
１３主管受口
１６枝管受口
１７接続筒体
１７Ａ第１直管部
１７Ｂ第２直管部
１７Ｃ曲管部
１８エルボ部
１８Ｃ開口中心
２１嵌合部
２３嵌入部
Ａｔ管軸
Ａｒ回動軸
Ｆ基礎
ＭＤ排水主管
ＳＤ排水枝管
DESCRIPTION OF SYMBOLS 10 Drainage mass 11 Mass main body 12 Joint 13 Main pipe receptacle 16 Branch pipe receptacle 17 Connection cylinder 17A 1st straight pipe part 17B 2nd straight pipe part 17C Curved pipe part 18 Elbow part 18C Opening center 21 Fitting part 23 Fitting part At pipe axis Ar rotation axis F foundation MD drainage main pipe SD drainage branch pipe

Claims

A joint for connecting the drainage branch pipe to the drainage mass provided to join the drainage branch pipe extending from the inside of the building to the drainage main pipe laid outside the building,
The drainage mass has a mass body provided with a main pipe receptacle to which the drainage main pipe is connected and a branch pipe receptacle to which the drainage branch pipe is connected,
A connecting cylinder inserted into the branch pipe receptacle, and an elbow part to which the drainage branch pipe is connected;
The connecting cylinder and the elbow part are formed by forming a fitting part on the inner periphery of the connection cylinder, forming an insertion part at an end of the elbow part, and inserting the insertion part into the fitting part. And
By making the fitting part and the fitting part slidable with respect to each other, the elbow part is configured to be rotatable with respect to the connection cylinder,
The connecting cylinder includes a first straight pipe portion having a tube axis extending in the same direction as an opening direction of the branch pipe receptacle, and a second straight pipe portion having a tube axis extending on the same line as the rotation axis of the elbow portion. And a curved pipe part connecting between the first straight pipe part and the second straight pipe part,
On the outer peripheral surface of the base end portion of the elbow part, a seal ring is fitted,
A convex body is provided on the distal end surface of the second straight pipe portion, and a stopper is provided at a position corresponding to the convex body on the outer peripheral surface of the elbow portion, and the stopper contacts the convex body. By making contact, the elbow part is prevented from rotating more than necessary with respect to the connection cylinder,
Furthermore, the joint is characterized in that the direction of rotation of the elbow part is set so that the axis of rotation of the elbow part with respect to the connecting cylinder is perpendicular to the tube axis of the drainage main pipe.

The joint according to claim 1, wherein the first straight pipe part is used as a length adjusting part that adjusts a length from a pipe axis of the drainage main pipe in a plan view to an opening center of the elbow part tip.

The opening direction of the branch pipe receptacle is inclined by 45 degrees with respect to the pipe axis of the drainage main pipe, and the bent pipe portion of the connecting cylinder has a bending angle corresponding to the opening direction of the branch pipe receptacle. The joint according to claim 1 or 2, wherein the joint is set.

A drainage mass comprising the joint according to any one of claims 1 to 3.