JP5460954B2 - Drainage pipe joint and foundation through piping structure - Google Patents

Drainage pipe joint and foundation through piping structure Download PDF

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JP5460954B2
JP5460954B2 JP2007301175A JP2007301175A JP5460954B2 JP 5460954 B2 JP5460954 B2 JP 5460954B2 JP 2007301175 A JP2007301175 A JP 2007301175A JP 2007301175 A JP2007301175 A JP 2007301175A JP 5460954 B2 JP5460954 B2 JP 5460954B2
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tube portion
pipe
sheath
sheath tube
bent
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JP2009127227A (en
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謙一郎 今久保
毅博 小林
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Kubota CI Co Ltd
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Description

この発明は、排水管継手および基礎貫通配管構造に関し、特にたとえば、鞘管内に屋内排水管と屋外排水管とを接続する内管が挿通される基礎貫通用の排水管継手および基礎貫通配管構造に関する。   TECHNICAL FIELD The present invention relates to a drain pipe joint and a basic through pipe structure, and more particularly to a drain pipe joint and a basic through pipe structure for base penetration through which an inner pipe connecting an indoor drain pipe and an outdoor drain pipe is inserted into a sheath pipe. .

従来の排水管配管構造の一例が、特許文献1に開示されている。この特許文献1の技術では、鞘管が斜め方向に立ち上がって建物の基礎部であるコンクリートスラブを貫通している。そして、その鞘管内にはフレキシブル管が挿通され、屋内外の排水管を接続する内管として機能している。
特許第3595761号公報[E03C 1/122]
An example of a conventional drain pipe structure is disclosed in Patent Document 1. In the technique of Patent Document 1, a sheath pipe rises in an oblique direction and penetrates a concrete slab that is a foundation of a building. And a flexible pipe is inserted in the sheath pipe, and it functions as an inner pipe connecting an indoor / outdoor drain pipe.
Japanese Patent No. 3595761 [E03C 1/122]

特許文献1の従来技術では、内管をフレキシブル管によって形成することにより、屈曲或いは湾曲した鞘管から抜き差しが可能である。このため、建物の基礎部を傷めることなく内管の補修や交換が可能となり、住宅の品質確保促進法における維持管理の容易性に関して等級2以上に適合される。しかしながら、鞘管を急な角度で立ち上げた場合には、フレキシブル管が鞘管内の方向に圧縮されて撓んでしまい、排水が閉塞してしまう恐れがある。このため、特許文献1の技術では、緩やかな角度で鞘管を立ち上げなければならず、鞘管に挿通される内管を壁際に立ち上げることができない。よって、たとえば内管と壁際に下りてくる屋内の排水管とを接続する際などには、それぞれ管の位置が離れてしまい、間に管を継ぎ足さなければ接続することができない。このため、内管と屋内排水管とを接続する配管が複雑な構造となってしまい、排水性能が安定しない。さらにまた、内管にフレキシブル管を用いることにより、可撓性を有さない内管と比較して管内面の平滑性が劣るため、やはり、排水性能が安定しない。   In the prior art of Patent Document 1, the inner tube is formed by a flexible tube, and can be inserted and removed from a bent or curved sheath tube. For this reason, it becomes possible to repair or replace the inner pipe without damaging the foundation of the building, and it conforms to grade 2 or higher with regard to the ease of maintenance in the Housing Quality Assurance Promotion Act. However, when the sheath tube is raised at a steep angle, the flexible tube may be compressed and bent in the direction of the sheath tube, and the drainage may be blocked. For this reason, in the technique of Patent Document 1, the sheath tube must be raised at a gentle angle, and the inner tube inserted through the sheath tube cannot be raised near the wall. Therefore, for example, when connecting an inner pipe and an indoor drain pipe descending to the wall, the positions of the pipes are separated from each other, and connection cannot be made unless a pipe is added between them. For this reason, the piping connecting the inner pipe and the indoor drain pipe has a complicated structure, and the drainage performance is not stable. Furthermore, by using a flexible pipe as the inner pipe, the smoothness of the inner surface of the pipe is inferior to that of the inner pipe having no flexibility, so that the drainage performance is not stable.

それゆえに、この発明の主たる目的は、新規な、排水管継手および基礎貫通配管構造を提供することである。   Therefore, a main object of the present invention is to provide a novel drainage pipe joint and basic through-pipe structure.

この発明の他の目的は、安定した排水性能を発揮する配管構造を実現することができる、排水管継手および基礎貫通配管構造を提供することである。   Another object of the present invention is to provide a drainage pipe joint and a basic through pipe structure that can realize a pipe structure that exhibits stable drainage performance.

この発明は、上記の課題を解決するために、以下の構成を採用した。なお、括弧内の参照符号および補足説明等は、この発明の理解を助けるために後述する実施形態との対応関係を示したものであって、この発明を何ら限定するものではない。   The present invention employs the following configuration in order to solve the above problems. Note that reference numerals in parentheses, supplementary explanations, and the like indicate correspondence with embodiments to be described later in order to help understanding of the present invention, and do not limit the present invention.

第1の発明は、鞘管内に屋内排水管と屋外排水管とを接続する内管が挿通される基礎貫通用の排水管継手であって、鞘管は、垂直または略垂直に配置されて一端が屋内に開口する第1鞘管部と、第1鞘管部の他端から連通しかつ水平または略水平に配置されて屋外に開口する第2鞘管部とを含み、内管は、第1鞘管部の内部に流入口と流出口とを有するように配置される屈曲内管部と、第1鞘管部に配置されて屈曲内管部と屋内排水管とを接続する第1内管部と、流出口に着脱自在に接続されかつ第2鞘管部に配置されて屈曲内管部と屋外排水管とを接続する第2内管部とを含み、第1鞘管部および第2鞘管部の少なくともいずれか一方の外面に形成される配筋固定部、第1鞘管部および第2鞘管部の少なくともいずれか一方の内面に設けられ、内管の外面と当接するシール材、第1鞘管部および第2鞘管部の少なくともいずれか一方に形成され、屈曲内管部を位置決めするための座部、および屈曲内管部に形成され、座部に当接する当接部を備え、さらに屈曲内管部は、水平または略水平な第1方向における流出口の端から当該流出口とは反対側の流入口の端までの距離と、流入口の外径とが略等しくなる外形を有し、第1鞘管部は、円筒状に形成される円筒状部と角筒状に形成される角筒状部とを連ねることにより、平面視において屈曲内管部の外形と略同等の大きさであってかつ第1方向における円筒状部の端から角筒状部の端までの距離と、第1方向に直交しかつ水平または略水平な第2方向における最大幅とが略等しい内形を有する筒状に形成される、排水管継手である。 1st invention is the drainage pipe joint for foundation penetration by which the inner pipe which connects an indoor drainage pipe and an outdoor drainage pipe is penetrated in a sheath pipe, and a sheath pipe is arranged vertically or substantially perpendicular, and is one end Includes a first sheath tube portion that opens indoors, and a second sheath tube portion that communicates from the other end of the first sheath tube portion and that is disposed horizontally or substantially horizontally and opens outdoors, A bent inner pipe portion arranged to have an inflow port and an outlet port inside the one sheath pipe portion, and a first inner portion arranged in the first sheath pipe portion to connect the bent inner pipe portion and the indoor drain pipe. A pipe portion and a second inner pipe portion that is detachably connected to the outlet and is disposed in the second sheath pipe portion to connect the bent inner pipe portion and the outdoor drain pipe, Provided on the inner surface of at least one of the reinforcing bar fixing portion, the first sheath tube portion, and the second sheath tube portion formed on the outer surface of at least one of the two sheath tube portions , Formed on at least one of the sealing material that contacts the outer surface of the inner tube, the first sheath tube portion and the second sheath tube portion, and formed on the seat portion for positioning the bent inner tube portion, and the bent inner tube portion The bent inner pipe portion has a distance from the end of the outlet in the horizontal or substantially horizontal first direction to the end of the inlet opposite to the outlet. The outer diameter of the inlet is substantially equal, and the first sheath tube part is formed by connecting a cylindrical part formed in a cylindrical shape and a square cylindrical part formed in a rectangular tube shape, The distance from the end of the cylindrical portion in the first direction to the end of the rectangular tube portion in the first direction is perpendicular to the first direction and is horizontal or substantially the same as the outer shape of the bent inner tube portion in plan view. The drainage pipe joint is formed in a cylindrical shape having an inner shape that is substantially equal to the maximum width in the horizontal second direction.

第1の発明では、排水管継手(10)は、鞘管(12)および内管(14)を備え、建築物の基礎(100)を貫通する鞘管内に、屋内排水管(106)と屋外排水管(108)とを接続する内管が挿通される。鞘管は、所定の角度をなす第1鞘管部(16)および第2鞘管部(18)を含み、それらを組み合わせることによって形成される。第1鞘管部は、その一端が屋内に開口する。第2鞘管部は、第1鞘管部の他端から連通し、屋外に開口する。また、内管は、それぞれ可撓性を有さない屈曲内管部(20)、第1内管部(22)および第2内管部(24)を接続することによって形成され、鞘管から抜き差し可能である。たとえば、屈曲内管部は、90°エルボ状に形成され、その始端となる流入口(66)と、その終端となる流出口(68)とを第1鞘管部の内部に有するよう配置される。また、第1内管部は、第1鞘管部内に配置され、たとえば屈曲内管部に接着接合されて、屈曲内管部と屋内排水管とを接続する。また、第2内管部は、第2鞘管部内に配置され、たとえば屈曲内管部にゴム輪接合されて、屈曲内管部と屋外排水管とを接続する。このように、可撓性を有さない各内管部(20、22、24)を接続して内管を形成した場合には、内管にフレキシブル管を用いる場合と比較して、管内面の平滑性に優れる。また、鞘管を壁際に下りてくる屋内排水管の周辺に立ち上げても内管の排水性能が低減しないため、内管を壁際に下りてくる屋内排水管の周辺に立ち上げて、内管と屋内排水管とを単純な配管で接続することができる。   In the first invention, the drainage pipe joint (10) includes a sheath pipe (12) and an inner pipe (14), and the indoor drain pipe (106) and the outdoor are placed in the sheath pipe penetrating the foundation (100) of the building. An inner pipe connecting with the drain pipe (108) is inserted. The sheath tube includes a first sheath tube portion (16) and a second sheath tube portion (18) forming a predetermined angle, and is formed by combining them. One end of the first sheath tube portion opens indoors. The second sheath tube portion communicates from the other end of the first sheath tube portion and opens outdoors. The inner tube is formed by connecting the bent inner tube portion (20), the first inner tube portion (22), and the second inner tube portion (24), which are not flexible. Can be inserted and removed. For example, the bent inner tube portion is formed in a 90 ° elbow shape, and is arranged so as to have an inflow port (66) as a start end thereof and an outflow port (68) as an end thereof inside the first sheath tube portion. The The first inner pipe part is disposed in the first sheath pipe part, and is bonded and joined to the bent inner pipe part, for example, to connect the bent inner pipe part and the indoor drain pipe. In addition, the second inner pipe portion is disposed in the second sheath pipe portion and, for example, is joined to the bent inner pipe portion by a rubber ring to connect the bent inner pipe portion and the outdoor drain pipe. Thus, when each inner pipe part (20, 22, 24) which does not have flexibility is connected and an inner pipe is formed, compared with the case where a flexible pipe is used for an inner pipe, a pipe inner surface Excellent smoothness. Also, since the drainage performance of the inner pipe is not reduced even if the sheath pipe is raised around the indoor drain pipe that descends toward the wall, the inner pipe is raised around the indoor drain pipe that descends against the wall. And the indoor drain pipe can be connected by a simple pipe.

第1の発明によれば、安定した排水性能を発揮する配管構造を実現することができる。   According to 1st invention, the piping structure which exhibits the stable drainage performance is realizable.

第2の発明は、鞘管内に屋内排水管と屋外排水管とを接続する内管が挿通される基礎貫通用の排水管継手であって、鞘管は、垂直または略垂直に配置されて一端が屋内に開口する第1鞘管部と、第1鞘管部の他端から連通しかつ水平または略水平に配置されて屋外に開口する第2鞘管部とを含み、内管は、第2鞘管部の内部に流入口と流出口とを有するように配置される屈曲内管部と、流入口に着脱自在に接続されかつ第1鞘管部に配置されて屈曲内管部と屋内排水管とを接続する第1内管部と、第2鞘管部に配置されて屈曲内管部と屋外排水管とを接続する第2内管部とを含み、第1鞘管部および前記第2鞘管部の少なくともいずれか一方の外面に形成される配筋固定部、第1鞘管部および前記第2鞘管部の少なくともいずれか一方の内面に設けられ、内管の外面と当接するシール材、第1鞘管部および第2鞘管部の少なくともいずれか一方に形成され、屈曲内管部を位置決めするための座部、および屈曲内管部に形成され、座部に当接する当接部を備え、さらに屈曲内管部は、垂直または略垂直な第3方向における流入口の端から当該流入口とは反対側の流出口の端までの距離と、流出口の外径とが略等しくなる外形を有し、第2鞘管部は、円筒状に形成される円筒状部と角筒状に形成される角筒状部とを連ねることにより、平面視において屈曲内管部の外形と略同等の大きさであってかつ第3方向における円筒状部の端から角筒状部の端までの距離と、第3方向に直交しかつ垂直または略垂直な第4方向における最大幅とが略等しい内形を有する筒状に形成される、排水管継手である。 A second invention is a drainage pipe joint for base penetration through which an inner pipe for connecting an indoor drainage pipe and an outdoor drainage pipe is inserted into a sheath pipe, and the sheath pipe is arranged vertically or substantially vertically and has one end. Includes a first sheath tube portion that opens indoors, and a second sheath tube portion that communicates from the other end of the first sheath tube portion and that is disposed horizontally or substantially horizontally and opens outdoors, A bent inner tube portion disposed so as to have an inlet and an outlet in the inside of the two-sheath tube portion; a bent inner tube portion that is detachably connected to the inlet port and disposed in the first sheath tube portion; A first inner pipe part that connects the drain pipe, and a second inner pipe part that is arranged in the second sheath pipe part and connects the bent inner pipe part and the outdoor drain pipe, An inner surface of at least one of the bar arrangement fixing portion, the first sheath tube portion, and the second sheath tube portion formed on the outer surface of at least one of the second sheath tube portions. A seat provided for sealing the outer surface of the inner tube, formed on at least one of the first sheath tube portion and the second sheath tube portion, and for positioning the bent inner tube portion, and the bent inner tube portion The bent inner tube portion is formed from the end of the inflow port in the vertical or substantially vertical third direction to the end of the outflow port opposite to the inflow port. The outer diameter of the outlet and the outer diameter of the outlet is substantially equal, and the second sheath tube portion is formed by connecting a cylindrical portion formed in a cylindrical shape and a rectangular tubular portion formed in a rectangular tube shape. Therefore, the distance from the end of the cylindrical portion to the end of the rectangular tube portion in the third direction is perpendicular to the third direction and perpendicular to the outer shape of the bent inner tube portion in plan view. Or a drainage pipe joint formed in a cylindrical shape having an inner shape substantially equal to the maximum width in the substantially vertical fourth direction. It is.

第3の発明は、第1または2の発明に従属し、第1鞘管部の上端には、調整管を挿入するための短円筒状の開口部が形成される。 3rd invention is dependent on 1st or 2nd invention, and the short cylindrical opening part for inserting an adjustment pipe | tube is formed in the upper end of a 1st sheath pipe part.

第4の発明は、第1ないし3のいずれかの発明に従属し、配筋固定部は、並べて形成される複数の板状体を含み、隣接する板状体どうしの間に配筋を嵌め込むことによって、鞘管と前記配筋とを固定する。 A fourth invention is dependent on any one of the first to third inventions, and the bar arrangement fixing portion includes a plurality of plate-like bodies formed side by side , and the bar arrangement is fitted between adjacent plate-like bodies. The sheath tube and the reinforcing bar are fixed.

第5の発明は、第1ないし4のいずれかの発明に従属し、当接部は、屈曲内管部の外面から板状に突出して形成される。 A fifth invention is dependent on any one of the first to fourth inventions, and the abutting portion is formed so as to protrude in a plate shape from the outer surface of the bent inner tube portion.

第6の発明は、第1ないしのいずれかの発明に従属し、第2鞘管部には、軸方向に間隔を隔てて複数のリブが形成される。 A sixth invention is dependent on any one of the first to fifth inventions, and a plurality of ribs are formed in the second sheath tube portion at intervals in the axial direction.

第7の発明は、第1ないし6のいずれかの発明の排水管継手を用いた基礎貫通配管構造である。 A seventh invention is a basic through-pipe structure using the drain pipe joint of any one of the first to sixth inventions.

この発明によれば、可撓性を有さない各内管部を接続することによっても内管を形成することができるため、安定した排水性能を発揮する配管構造を実現することができる。   According to this invention, since an inner pipe can be formed also by connecting each inner pipe part which does not have flexibility, the piping structure which exhibits the stable drainage performance is realizable.

この発明の上述の目的,その他の目的,特徴および利点は、図面を参照して行う以下の実施例の詳細な説明から一層明らかとなろう。   The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

図1を参照して、この発明の一実施例である排水管継手10は、鞘管12および内管14を備え、建築物の基礎100を貫通する鞘管12内に、屋内排水管106と屋外排水管108とを接続する内管14が挿通される。   Referring to FIG. 1, a drain pipe joint 10 according to an embodiment of the present invention includes a sheath pipe 12 and an inner pipe 14, and an indoor drain pipe 106 and a sheath pipe 12 penetrating a building foundation 100. The inner pipe 14 connecting with the outdoor drain pipe 108 is inserted.

図1および図2に示すように、鞘管12は、ポリエチレンなどの合成樹脂からなり、ブロー成形によって別体に成形された第1鞘管部16および第2鞘管部18を組み合わせることによって、略L字状に形成される。第1鞘管部16は、垂直方向に延びて、その一端が屋内かつ基礎垂直部104近傍に開口する。第2鞘管部18は、第1鞘管部16の他端から水平方向に延びて、屋外に開口する。ただし、「垂直」或いは「水平」とは、厳密に垂直或いは水平と一致するか否かを定義するものではなく、建築物の基礎100に鞘管12を設ける際などに、第1鞘管部16および第2鞘管部18の角度が多少変化した場合も含む。したがって、ここでいう「垂直」或いは「水平」とは、略垂直方向を含む垂直方向、或いは略水平方向を含む水平方向を意味する。   As shown in FIG. 1 and FIG. 2, the sheath tube 12 is made of a synthetic resin such as polyethylene, and by combining the first sheath tube portion 16 and the second sheath tube portion 18 formed separately by blow molding, It is formed in a substantially L shape. The first sheath tube portion 16 extends in the vertical direction, and one end thereof opens indoors and in the vicinity of the basic vertical portion 104. The second sheath tube portion 18 extends in the horizontal direction from the other end of the first sheath tube portion 16 and opens outdoors. However, “vertical” or “horizontal” does not define whether the vertical or horizontal is exactly the same. When the sheath 12 is provided on the foundation 100 of the building, the first sheath is This includes the case where the angles of the 16 and the second sheath tube portion 18 are slightly changed. Accordingly, “vertical” or “horizontal” here means a vertical direction including a substantially vertical direction or a horizontal direction including a substantially horizontal direction.

図3―図6に示すように、第1鞘管部16は、垂直方向に延びる筒状に形成される第1筒部26を含み、その内部には、詳細は後述する屈曲内管部20および第1内管部22が配置される。第1筒部26は、半四角筒状に形成される角筒状部26aと、半円筒状に形成される円筒状部26bとを連ねた筒状に形成される。第1筒部26は、垂直方向からの平面視の内形がいわゆる馬蹄形状を有しており、詳細は後述する、屈曲内管部20の同方向からの平面視の外形に対応した略同等の大きさに形成される。   As shown in FIGS. 3 to 6, the first sheath tube portion 16 includes a first tube portion 26 formed in a cylindrical shape extending in the vertical direction, and the inner portion of the bent inner tube portion 20 will be described in detail later. And the 1st inner pipe part 22 is arrange | positioned. The first cylindrical portion 26 is formed in a cylindrical shape in which a rectangular cylindrical portion 26a formed in a half-square cylindrical shape and a cylindrical portion 26b formed in a semi-cylindrical shape are connected. The first cylindrical portion 26 has a so-called horseshoe shape in an inner shape in a plan view from the vertical direction, and is substantially equivalent to an outer shape in a plan view from the same direction of the bent inner tube portion 20 described later in detail. The size is formed.

第1筒部26の上端は、垂直上方向に開口しており、そこに第1開口部28が形成される。第1開口部28は、第1筒部26よりも大きな径の短円筒状に形成され、第1筒部26の上端から段差状に拡径する。たとえば、第1開口部28の呼び径は170mmである。   The upper end of the 1st cylinder part 26 is opened to the perpendicular | vertical upper direction, and the 1st opening part 28 is formed there. The first opening 28 is formed in a short cylindrical shape having a larger diameter than the first cylindrical portion 26, and expands in a step shape from the upper end of the first cylindrical portion 26. For example, the nominal diameter of the first opening 28 is 170 mm.

また、第1筒部26の下端近傍の角筒状部26a側は、水平方向に開口しており、そこに水平方向に向けて短円筒状に突出する第2開口部30が形成される。たとえば、第2開口部30の呼び径は120mmである。また、たとえば、第2開口部30の内周面には、後述する第2鞘管部18に形成される雄ネジ46と螺合する、雌ネジ32が形成される。   Moreover, the square cylindrical part 26a side of the lower end vicinity of the 1st cylindrical part 26 is opened in the horizontal direction, and the 2nd opening part 30 which protrudes in a short cylindrical shape toward the horizontal direction is formed there. For example, the nominal diameter of the second opening 30 is 120 mm. Further, for example, on the inner peripheral surface of the second opening 30, a female screw 32 that is screwed with a male screw 46 formed on the second sheath tube portion 18 described later is formed.

また、第1筒部26の下端には、底面34が形成される。底面34は、詳細は後述する、屈曲内管部20の位置を決めるための座部36として機能する。底面34は、角筒状部26aの下端に形成される第1底面34a、および円筒状部26bの下端に形成される第2底面34bを含む。たとえば、第1底面34aは、上方向に向かって開く半円筒形状を有する。また、たとえば、第2底面34bは、第1底面34aよりも小径の半円筒体が第1底面34aと反対方向に向けてさらに縮径する形状を有する。そして、第1底面34aと第2底面34bとの間には、お互いの高低差によって生じる段差34cが形成される。   A bottom surface 34 is formed at the lower end of the first tube portion 26. The bottom surface 34 functions as a seat portion 36 for determining the position of the bent inner tube portion 20, which will be described in detail later. The bottom surface 34 includes a first bottom surface 34a formed at the lower end of the rectangular tubular portion 26a and a second bottom surface 34b formed at the lower end of the cylindrical portion 26b. For example, the first bottom surface 34a has a semi-cylindrical shape that opens upward. Further, for example, the second bottom surface 34b has a shape in which a semi-cylindrical body having a smaller diameter than the first bottom surface 34a is further reduced in diameter in the direction opposite to the first bottom surface 34a. A step 34c is formed between the first bottom surface 34a and the second bottom surface 34b due to a difference in height between the first bottom surface 34a and the second bottom surface 34b.

さらに、第1筒部26には、その外面から外側に突出する配筋固定部38が形成される。配筋固定部38は、水平方向に長い板状に形成され、外側先端に厚みを有する。また、図7に示すように、配筋固定部38は、第1筒部26の管壁が突出して中空状に形成される。たとえば、角筒状部26a側に4つの配筋固定部38が垂直方向に並ぶように形成され、円筒状部26b側に5つの配筋固定部38が垂直方向に並ぶように形成され、その垂直方向の間隔は10mmである。   Furthermore, the first cylinder portion 26 is formed with a bar arrangement fixing portion 38 that protrudes outward from the outer surface thereof. The bar arrangement fixing portion 38 is formed in a plate shape that is long in the horizontal direction, and has a thickness at the outer end. Further, as shown in FIG. 7, the bar arrangement fixing portion 38 is formed in a hollow shape by projecting the tube wall of the first tube portion 26. For example, four reinforcing bar fixing portions 38 are formed so as to be aligned in the vertical direction on the rectangular tubular portion 26a side, and five reinforcing bar fixing portions 38 are formed on the cylindrical portion 26b side so as to be aligned in the vertical direction. The vertical spacing is 10 mm.

上述したように、第1鞘管部16には、水平方向に延びて、屋外に開口する第2鞘管部18が接続される(図1および図2参照)。   As described above, the second sheath tube portion 18 that extends in the horizontal direction and opens to the outside is connected to the first sheath tube portion 16 (see FIGS. 1 and 2).

図8および図9に示すように、第2鞘管部18は、水平方向に延びる円筒状に形成される第2筒部40を含み、たとえばその呼び径は110mmであり、その長さは260mmである。第2筒部40の両端には、短円筒状の第3開口部42および第4開口部44がそれぞれ形成されて、第2筒部40の両端は、水平方向に向けて開口している。たとえば、第3開口部42は、第2筒部40の一方端に形成され、第1鞘管部16の第2開口部30に挿入して接続される。第3開口部42の外面には、上述の雌ネジ32と螺合する雄ネジ46が形成される。また、第4開口部44は、第2筒部40の他方端に形成され、屋外に開口して、詳細は後述する外構継手80と固定される。たとえば、第4開口部44の呼び径は、135mmである。   As shown in FIGS. 8 and 9, the second sheath tube portion 18 includes a second tube portion 40 formed in a cylindrical shape extending in the horizontal direction. For example, the nominal diameter is 110 mm and the length is 260 mm. It is. A short cylindrical third opening 42 and a fourth opening 44 are respectively formed at both ends of the second cylindrical portion 40, and both ends of the second cylindrical portion 40 are open in the horizontal direction. For example, the third opening 42 is formed at one end of the second tube portion 40 and is inserted and connected to the second opening 30 of the first sheath tube portion 16. On the outer surface of the third opening 42, a male screw 46 that is screwed with the above-described female screw 32 is formed. Moreover, the 4th opening part 44 is formed in the other end of the 2nd cylinder part 40, opens outdoors, and is fixed with the exterior joint 80 mentioned later for details. For example, the nominal diameter of the fourth opening 44 is 135 mm.

第4開口部44には、環状係止部48が形成される。環状係止部48は、第4開口部44の管壁を内側に窪ませて形成され、第4開口部44の内面から環状に突出する。また、環状係止部48よりも管端側には、第1係止部50および第2係止部52が形成される。第1係止部50および第2係止部52は、第4開口部44の管壁を内側に窪ませて形成され、第4開口部44の内面から周方向に長い直方体状に突出する。たとえば、それぞれ2つの第1係止部50と第2係止部52とが、第4開口部44の周方向に等間隔をあけて1つずつ交互に形成される。第1係止部50と第2係止部52との間には、後述する外構継手80を固定する際の、係合部84の導入溝54が形成される。さらに、第1係止部50には、その周方向の一方端から環状係止部48側に延出する第1ストッパ56が形成される。第1ストッパ56は、第1係止部50と環状係止部48とを連通している。また、第2係止部52には、その周方向の一方端、具体的には第1係止部50とは周方向反対側の一方端から環状係止部48側に少しだけ延出する第2ストッパ58が形成される。   An annular locking portion 48 is formed in the fourth opening 44. The annular locking portion 48 is formed by recessing the tube wall of the fourth opening 44 inward, and protrudes annularly from the inner surface of the fourth opening 44. Further, a first locking portion 50 and a second locking portion 52 are formed on the tube end side from the annular locking portion 48. The first locking portion 50 and the second locking portion 52 are formed by recessing the tube wall of the fourth opening 44 inward, and project from the inner surface of the fourth opening 44 in a rectangular parallelepiped shape that is long in the circumferential direction. For example, the two first locking parts 50 and the second locking parts 52 are alternately formed one by one at equal intervals in the circumferential direction of the fourth opening 44. Between the 1st latching | locking part 50 and the 2nd latching | locking part 52, the introduction groove | channel 54 of the engaging part 84 at the time of fixing the exterior coupling 80 mentioned later is formed. Further, the first locking portion 50 is formed with a first stopper 56 extending from the one end in the circumferential direction to the annular locking portion 48 side. The first stopper 56 communicates the first locking part 50 and the annular locking part 48. Further, the second locking portion 52 extends slightly toward the annular locking portion 48 from one end in the circumferential direction, specifically, from one end on the opposite side to the first locking portion 50 in the circumferential direction. A second stopper 58 is formed.

さらに、図10に示すように、第2筒部40には、リブ60が形成される。リブ60は、第2筒部40の管壁を外側に突き出して形成され、第2筒部40の外面から環状に突出する。リブ60は、第2筒部40の管軸方向に等間隔をあけて複数(この実施例では5つ)形成され、第2筒部40の剛性を高める。また、リブ60の第2筒部40の内面側には、シール材62が設けられる。シール材62は、ゴム輪などによって形成され、後述する第2内管部24の外面と当接する。   Furthermore, as shown in FIG. 10, ribs 60 are formed in the second cylindrical portion 40. The rib 60 is formed by projecting the tube wall of the second cylinder part 40 outward, and protrudes in an annular shape from the outer surface of the second cylinder part 40. A plurality of ribs 60 (five in this embodiment) are formed at equal intervals in the tube axis direction of the second cylindrical portion 40 to increase the rigidity of the second cylindrical portion 40. Further, a sealing material 62 is provided on the inner surface side of the second cylindrical portion 40 of the rib 60. The sealing material 62 is formed of a rubber ring or the like and abuts on the outer surface of the second inner tube portion 24 described later.

上述したように、鞘管12内には、内管14が挿通される。内管14は、それぞれ別体として成形した、可撓性を有さない屈曲内管部20、第1内管部22および第2内管部24を接続することによって形成される。   As described above, the inner tube 14 is inserted into the sheath tube 12. The inner tube 14 is formed by connecting a bent inner tube portion 20, a first inner tube portion 22, and a second inner tube portion 24 that are formed as separate bodies and have no flexibility.

第1鞘管部16の内部には、屈曲内管部20が配置される(図1および図2参照)。図11―図14に示すように、屈曲内管部20は、たとえば、ポリ塩化ビニルなどの合成樹脂からなり、射出成形によって90°エルボ状に形成される。屈曲内管部20は、筒状に形成される管部64を含み、垂直方向からの平面視の外形がいわゆる馬蹄形状を有している。   A bent inner tube portion 20 is disposed inside the first sheath tube portion 16 (see FIGS. 1 and 2). As shown in FIGS. 11 to 14, the bent inner tube portion 20 is made of, for example, a synthetic resin such as polyvinyl chloride, and is formed into a 90 ° elbow shape by injection molding. The bent inner tube portion 20 includes a tube portion 64 formed in a cylindrical shape, and the outer shape in a plan view from the vertical direction has a so-called horseshoe shape.

管部64の一方端には、垂直上方向に開口して屈曲内管部20の始端となる流入口66が形成される。流入口66は、短円筒状に形成され、たとえばその呼び径は120mmである。また、管部64の他方端には、水平方向に開口して屈曲内管部20の終端となる流出口68が形成される。流出口68は、上述の第1底面34aに沿う短円筒状に形成され、たとえばその呼び径は110mmである。また、図15に示すように、流出口68には、ゴム溝70が形成される。ゴム溝70は、たとえば、流出口68の内周面に沿って形成された環状の溝であって、内側に向って窪んでいる。ゴム溝70には、ゴム輪が設けられる。   An inlet 66 is formed at one end of the pipe portion 64 so as to open in the vertical upward direction and serve as the starting end of the bent inner pipe portion 20. The inflow port 66 is formed in a short cylindrical shape, for example, its nominal diameter is 120 mm. Further, an outlet 68 is formed at the other end of the pipe portion 64 so as to open in the horizontal direction and serve as a terminal end of the bent inner pipe portion 20. The outflow port 68 is formed in a short cylindrical shape along the first bottom surface 34a, and has a nominal diameter of 110 mm, for example. As shown in FIG. 15, a rubber groove 70 is formed at the outlet 68. The rubber groove 70 is, for example, an annular groove formed along the inner peripheral surface of the outlet 68 and is recessed toward the inside. A rubber ring is provided in the rubber groove 70.

さらに、管部64の外周面には、下方向に突出する当接部72が形成される(図11参照)。当接部72は、たとえば、その外縁72aが第1鞘管部16の第1底面34aの形状に相当する円弧状に形成される板状体である。また、当接部72と流出口68との間には、当接部72の強度を高めるための、複数(この実施例では5つ)の補強板74が形成される。補強板74は、たとえば、長方形の板状に形成され、当接部72と流出口68とを繋ぐように管部64外周面から突出する。   Further, a contact portion 72 protruding downward is formed on the outer peripheral surface of the tube portion 64 (see FIG. 11). The contact portion 72 is, for example, a plate-like body whose outer edge 72 a is formed in an arc shape corresponding to the shape of the first bottom surface 34 a of the first sheath tube portion 16. In addition, a plurality (five in this embodiment) of reinforcing plates 74 are formed between the contact portion 72 and the outlet 68 to increase the strength of the contact portion 72. The reinforcing plate 74 is formed in a rectangular plate shape, for example, and protrudes from the outer peripheral surface of the pipe portion 64 so as to connect the contact portion 72 and the outlet 68.

また、屈曲内管部20は、流入口66すなわち始端と、流出口68すなわち終端とを第1鞘管部16の内部に有するように配置される。ただし、ここにいう「第1鞘管部16の内部」とは、別体に成形された第1鞘管部16と第2鞘管部18との接続箇所によって、一義的に判断されるのではなく、第1鞘管部16の延長線上に屈曲内管部20の始端と終端とが収まり、屈曲内管部20が第1鞘管部16から屋内に抜き差し可能であることを指す。   Further, the bent inner tube portion 20 is arranged so as to have an inflow port 66, that is, a start end, and an outflow port 68, that is, a terminal end, in the first sheath tube portion 16. However, the “inside of the first sheath tube portion 16” referred to here is uniquely determined by the connection location of the first sheath tube portion 16 and the second sheath tube portion 18 formed separately. Instead, the start end and the end of the bent inner tube portion 20 are accommodated on the extension line of the first sheath tube portion 16, and the bent inner tube portion 20 can be inserted into and removed from the first sheath tube portion 16 indoors.

換言すると、この実施例においては、図16に示すように、水平方向(第1鞘管部16の軸方向と直交する方向)における屈曲内管部20の最大幅、すなわち流出口68の水平方向の端76aと、その反対側における流入口66の端76bとの水平距離W1が、その同方向における第1鞘管部16の内部の幅、すなわち角筒状部26aの周方向中央78aと円筒状部26bの周方向中央78bとの水平距離W2よりも小さく、屈曲内管部20が第2鞘管部18から屋内に抜き差し可能であることを示す(図6および図14参照)。   In other words, in this embodiment, as shown in FIG. 16, the maximum width of the bent inner tube portion 20 in the horizontal direction (the direction perpendicular to the axial direction of the first sheath tube portion 16), that is, the horizontal direction of the outlet 68 The horizontal distance W1 between the end 76a and the end 76b of the inflow port 66 on the opposite side is the width inside the first sheath tube portion 16 in the same direction, that is, the circumferential center 78a of the rectangular tubular portion 26a and the cylinder. It is smaller than the horizontal distance W2 from the circumferential center 78b of the shape portion 26b, and indicates that the bent inner tube portion 20 can be inserted and removed indoors from the second sheath tube portion 18 (see FIGS. 6 and 14).

さらに、第1鞘管部16内には、垂直上方向に延びる第1内管部22が配置される(図1および図2参照)。第1内管部22は、塩化ビニルなどの合成樹脂からなり、円筒状に形成される。たとえば、流入口66の内径に等しい外径を有する塩化ビニル管などを用いてもよい。たとえば、第1内管部22の一端は、屈曲内管部20の流入口66に挿入されて、屈曲内管部20と第1内管部22とは接着接合される。よって、第1内管部22は、内管屈曲部20と共に、第1鞘管部16から屋内側に抜き差し可能である。また、たとえば、第1内管部22の他端は、屋内排水管106に挿入されて、第1内管部22と屋内排水管106とは接着接合される。   Further, a first inner tube portion 22 extending in the vertically upward direction is disposed in the first sheath tube portion 16 (see FIGS. 1 and 2). The first inner tube portion 22 is made of a synthetic resin such as vinyl chloride and is formed in a cylindrical shape. For example, a vinyl chloride pipe having an outer diameter equal to the inner diameter of the inlet 66 may be used. For example, one end of the first inner tube portion 22 is inserted into the inlet 66 of the bent inner tube portion 20, and the bent inner tube portion 20 and the first inner tube portion 22 are adhesively bonded. Therefore, the first inner tube portion 22 can be inserted and removed from the first sheath tube portion 16 together with the inner tube bent portion 20 to the indoor side. Further, for example, the other end of the first inner pipe portion 22 is inserted into the indoor drain pipe 106, and the first inner pipe section 22 and the indoor drain pipe 106 are bonded and joined.

第2鞘管部18内には、水平方向に延びる第2内管部24が配置される(図1および図2参照)。第2内管部24は、塩化ビニルなどの合成樹脂からなり、ブロー成形によって流出口68の内径に等しい外径を有する円筒状に形成される。たとえば、その呼び径は110mmであり、その長さは300mmである。たとえば、第2内管部24の一方端は屈曲内管部20の流出口68に挿入されて、屈曲内管部20と第2内管部24とは水密状態でゴム輪接合される。よって、第2内管部24は、第2鞘管部18から屋外に抜き差し可能である。また、第2内管部22の他方端は、外構継手80を介して屋外排水管108と接続される(図1および図2参照)。   A second inner tube portion 24 extending in the horizontal direction is disposed in the second sheath tube portion 18 (see FIGS. 1 and 2). The second inner pipe portion 24 is made of a synthetic resin such as vinyl chloride, and is formed in a cylindrical shape having an outer diameter equal to the inner diameter of the outlet 68 by blow molding. For example, the nominal diameter is 110 mm and the length is 300 mm. For example, one end of the second inner tube portion 24 is inserted into the outlet 68 of the bent inner tube portion 20, and the bent inner tube portion 20 and the second inner tube portion 24 are joined in a rubber ring in a watertight state. Therefore, the second inner tube portion 24 can be inserted and removed from the second sheath tube portion 18 outdoors. Further, the other end of the second inner pipe portion 22 is connected to the outdoor drain pipe 108 via the outer joint 80 (see FIGS. 1 and 2).

図17に示すように、外構継手80は、塩化ビニルなどの合成樹脂からなり、射出成形によって円筒状に形成される。外構継手80の一方端には、第1受口82が形成される。第1受口82は、第2鞘管部18の第4開口部44に挿入される部位であると共に、その内部に第2内管部24が挿入される部位である。第1受口82の外周面には、第2鞘管部と固定するための係合部84およびフランジ86が形成される。係合部84は、たとえば、管継手80の外周面に沿って形成された略直方体状の突起であって、外側に向かって突き出している。たとえば、複数(この実施例では4つ)の係合部84が、第1受口82の周方向に等間隔をあけて形成され、前述の導入溝54の位置に対応している。また、係合部84の少し中央側には、フランジ86が形成される。フランジ86は、たとえば、管継手80の外周面に沿って形成された環状の突起であって、外側に向かって突き出している。また、フランジ86には、係合部84を屋外側から目視可能となるように、係合部84の位置に合わせた2つの窪みが形成される。   As shown in FIG. 17, the external joint 80 is made of a synthetic resin such as vinyl chloride, and is formed in a cylindrical shape by injection molding. A first receiving port 82 is formed at one end of the external joint 80. The first receiving port 82 is a part to be inserted into the fourth opening 44 of the second sheath pipe part 18 and is a part into which the second inner pipe part 24 is inserted. An engaging portion 84 and a flange 86 for fixing to the second sheath tube portion are formed on the outer peripheral surface of the first receiving port 82. The engaging portion 84 is, for example, a substantially rectangular parallelepiped protrusion formed along the outer peripheral surface of the pipe joint 80 and protrudes outward. For example, a plurality (four in this embodiment) of engaging portions 84 are formed at equal intervals in the circumferential direction of the first receiving port 82 and correspond to the position of the introduction groove 54 described above. A flange 86 is formed slightly on the center side of the engaging portion 84. The flange 86 is, for example, an annular protrusion formed along the outer peripheral surface of the pipe joint 80 and protrudes outward. In addition, the recess 86 is formed with two recesses that match the position of the engaging portion 84 so that the engaging portion 84 can be viewed from the outdoor side.

図18に示すように、第1受口82の内周面には、ゴム溝88が形成される。ゴム溝88は、たとえば、管継手80の内周面に沿って形成された環状の溝であって、内側に向って窪んでいる。ゴム溝88には、ゴム輪が設けられる。たとえば、第1受口82の内部には第2内管部22が挿入されて、外構継手80と第2内管部22とが水密状態でゴム輪接合される。   As shown in FIG. 18, a rubber groove 88 is formed on the inner peripheral surface of the first receiving port 82. The rubber groove 88 is, for example, an annular groove formed along the inner peripheral surface of the pipe joint 80 and is recessed toward the inside. A rubber ring is provided in the rubber groove 88. For example, the 2nd inner pipe part 22 is inserted in the inside of the 1st receiving port 82, and the outer joint 80 and the 2nd inner pipe part 22 are rubber ring joined in a watertight state.

また、たとえば、外構継手80のもう一方端には第2受口90が形成される(図17参照)。第2受口90には屋外排水管108が挿入され、外構継手80と屋外排水管108とが接続される。   Further, for example, a second receiving port 90 is formed at the other end of the external joint 80 (see FIG. 17). The outdoor drain pipe 108 is inserted into the second receiving port 90, and the exterior joint 80 and the outdoor drain pipe 108 are connected.

図19−図25を参照して、上述のような排水管継手10によって、建築物の基礎100を貫通して、屋内排水管106と屋外排水管108とを接続する、基礎貫通配管構造を形成する方法を以下に示す。   Referring to FIGS. 19 to 25, the drainage pipe joint 10 as described above forms a foundation penetration piping structure that penetrates the building foundation 100 and connects the indoor drainage pipe 106 and the outdoor drainage pipe 108. The method to do is shown below.

先ず、第1鞘管部16内に屈曲内管部20を収容する。たとえば、この際は、屈曲内管部20の流出口68を、第2開口部30の形成される第1底面34aの一方端に当接させると共に、当接部72の側面を、第1底面34aのもう一方端となる段差34cに当接させる。すなわち、屈曲内管部20を、第1底面34aに嵌めるように当接させる。また、さらに、湾曲する屈曲内管部の管部64を第2底面34bに当接させる。   First, the bent inner tube portion 20 is accommodated in the first sheath tube portion 16. For example, in this case, the outlet 68 of the bent inner tube portion 20 is brought into contact with one end of the first bottom surface 34a where the second opening 30 is formed, and the side surface of the contact portion 72 is made to be the first bottom surface. It is made to contact | abut to the level | step difference 34c used as the other end of 34a. That is, the bent inner tube portion 20 is brought into contact with the first bottom surface 34a. Further, the curved pipe part 64 of the bent inner pipe part is brought into contact with the second bottom surface 34b.

そして、図19に示すように、第2内管部24の一端を屈曲内管部20の流出口68に挿入する。この際、必要に応じて、第2内管部24の外面および流出口68に設けたゴム輪にVソープ(クボタシーアイ社製)などの滑剤を塗布する。   Then, as shown in FIG. 19, one end of the second inner tube portion 24 is inserted into the outlet 68 of the bent inner tube portion 20. At this time, if necessary, a lubricant such as V soap (manufactured by Kubota Eye) is applied to the outer surface of the second inner tube portion 24 and the rubber ring provided on the outflow port 68.

続いて、第1鞘管部16と第2鞘管部18とを接続する。図20に示すように、第2鞘管部18の内部に第2内管部22を挿通させて、第2鞘管部18の第3開口部42に形成される雄ネジ46と、第1鞘管部16の第2開口部30に形成される雌ネジ32とを螺合する。ただし、第1鞘管部16と第2鞘管部18とを接続した後で、鞘管12内に内管14を収容してもよい。また、屈曲内管部20に第1内管部22を接続した状態で、第1鞘管部16内に収容してもよい。   Subsequently, the first sheath tube portion 16 and the second sheath tube portion 18 are connected. As shown in FIG. 20, the second inner tube portion 22 is inserted into the second sheath tube portion 18, the male screw 46 formed in the third opening 42 of the second sheath tube portion 18, and the first A female screw 32 formed in the second opening 30 of the sheath tube portion 16 is screwed. However, the inner tube 14 may be accommodated in the sheath tube 12 after the first sheath tube portion 16 and the second sheath tube portion 18 are connected. Further, the first inner tube portion 22 may be accommodated in the first sheath tube portion 16 in a state where the first inner tube portion 22 is connected to the bent inner tube portion 20.

次に、建築物の基礎100を作るための基礎型枠120を形成して、基礎型枠120内に配筋110を配置する。そして、必要に応じて別途配筋110に鞘管12を固定するための固定筋112を設ける。ここで、基礎100は、水平方向に延びる基礎水平部102および垂直方向に延びる基礎垂直部104を含む。   Next, the foundation formwork 120 for making the foundation 100 of a building is formed, and the bar arrangement 110 is arranged in the foundation formwork 120. And the fixing bar | burr 112 for fixing the sheath tube 12 to the bar arrangement | positioning 110 separately as needed is provided. Here, the foundation 100 includes a foundation horizontal portion 102 extending in the horizontal direction and a foundation vertical portion 104 extending in the vertical direction.

続いて、第1鞘管部16が屋内かつ基礎垂直部104近傍に開口して、第2鞘管部18が屋外に開口するように、基礎型枠120内に鞘管12を配置する場所を決める。   Subsequently, a place where the sheath tube 12 is arranged in the foundation mold 120 so that the first sheath tube portion 16 opens indoors and near the foundation vertical portion 104 and the second sheath tube portion 18 opens outdoors. Decide.

そして、第1内管部22をこの段階で接続する場合には、必要に応じて第1内管部22を、その配置場所における基礎100の深さに合わせた長さに切断する。また、屈曲内管部20の流入口66に第1内管部22の一端を挿入して、流入口66の内面に接着接合する。この際、図21に示すように、必要に応じて、第1開口部28に調整管116を挿入するなどして、第1鞘管部16の垂直方向の長さを調整する。   And when connecting the 1st inner pipe part 22 in this step, the 1st inner pipe part 22 is cut | disconnected to the length match | combined with the depth of the foundation 100 in the arrangement place as needed. Further, one end of the first inner tube portion 22 is inserted into the inlet 66 of the bent inner tube portion 20 and is bonded to the inner surface of the inlet 66. At this time, as shown in FIG. 21, the length of the first sheath tube portion 16 in the vertical direction is adjusted by inserting an adjustment tube 116 into the first opening 28 as necessary.

次に、図22に示すように、たとえば、支持具114および第1鞘管部16に形成される配筋固定部38によって鞘管12と配筋110とを固定する。支持具114は、C字状に形成される固定筋支持部114aとO字状に形成される鞘管支持部114bとによって形成される。鞘管支持部114bの内部に第2鞘管部18を挿通させて、固定筋支持部114aに配筋110或いは固定筋112を嵌め込み、第2鞘管部18を吊り下げるように固定する。さらに、隣接する配筋固定部38の間に配筋110或いは固定筋112を嵌め込むことで、第1鞘管部16と配筋110とを固定する。なお、この際には、図23に示すように、鞘管12(第2鞘管部18)の屋外側の管端と内管14(第2内管部24)の屋外側の管端とを揃えて、基礎型枠120に当接するように固定する。   Next, as shown in FIG. 22, for example, the sheath tube 12 and the reinforcing bar 110 are fixed by the reinforcing bar fixing portion 38 formed on the support 114 and the first sheath tube portion 16. The support 114 is formed by a fixed muscle support portion 114a formed in a C shape and a sheath tube support portion 114b formed in an O shape. The second sheath tube portion 18 is inserted into the inside of the sheath tube support portion 114b, the reinforcing bar 110 or the fixed muscle 112 is fitted into the fixed muscle support portion 114a, and the second sheath tube portion 18 is fixed so as to be suspended. Furthermore, the first sheath tube portion 16 and the reinforcing bar 110 are fixed by fitting the reinforcing bar 110 or the fixing bar 112 between the adjacent reinforcing bar fixing portions 38. In this case, as shown in FIG. 23, the tube end on the outdoor side of the sheath tube 12 (second sheath tube portion 18) and the tube end on the outdoor side of the inner tube 14 (second inner tube portion 24) Are aligned and fixed so as to abut against the basic formwork 120.

そして、基礎型枠120内にコンクリートを打設して基礎100を形成する。ただし、内管14を、基礎100の形成後に鞘管12内に収容してもよい。続いて、コンクリートが乾いたら、基礎水平部102より上部に露出した鞘管12、内管14或いは調整管90を適宜切断する。   Then, the foundation 100 is formed by placing concrete in the foundation mold 120. However, the inner tube 14 may be accommodated in the sheath tube 12 after the foundation 100 is formed. Subsequently, when the concrete is dried, the sheath tube 12, the inner tube 14, or the adjustment tube 90 exposed above the foundation horizontal portion 102 is appropriately cut.

次に、第2鞘管部18および第2内管部22に外構継手80を接続する。具体的には、図24に示すように、第1受口82の外面に形成される係合部84の位置と、第4開口部44に形成される導入溝56の位置とを合わせて、外構継手80を矢印A方向すなわち第2鞘管部18方向に押し込む。ここで、外構継手80を矢印A方向へ押し込む際は、第2内管部22を受口82の内部に挿入させながら行う。そして、係合部84が環状係止部48に当接するまで押し込み、図25に示すように、その状態からさらに、係合部84が第1ストッパ56に当接するまで、外構継手80を矢印B方向に回転させる。これにより、外構継手80と第2内管部22とが接続されると共に外構継手80と第2鞘管部18とも固定される。また、不測の回転力が生じた場合も、係合部84が第2ストッパ58に掛止されるため、外構継手80は外れない。   Next, the exterior joint 80 is connected to the second sheath tube portion 18 and the second inner tube portion 22. Specifically, as shown in FIG. 24, the position of the engaging portion 84 formed on the outer surface of the first receiving port 82 and the position of the introduction groove 56 formed in the fourth opening 44 are combined, The external joint 80 is pushed in the direction of arrow A, that is, in the direction of the second sheath tube portion 18. Here, when the outer joint 80 is pushed in the direction of arrow A, the second inner pipe portion 22 is inserted into the receiving port 82. Then, the engaging portion 84 is pushed in until it comes into contact with the annular locking portion 48, and as shown in FIG. 25, the outer joint 80 is moved from the state until the engaging portion 84 comes into contact with the first stopper 56. Rotate in B direction. Thereby, the outer joint 80 and the second inner pipe portion 22 are connected, and the outer joint 80 and the second sheath pipe portion 18 are also fixed. Further, even when an unexpected rotational force is generated, the engaging joint 84 is hooked on the second stopper 58, so that the external joint 80 cannot be removed.

そして最後に、内管14と屋内排水管106および屋外排水管108とを接続する。具体的には、第1内管22の上端を屋内排水管106に挿入して、内管14と屋内排水管106とを接着接合する。また、外構継手80の第2受口90に屋外排水管108を挿入して、内管14と屋外排水管106とを接着接合する(図1参照)。   Finally, the inner pipe 14 is connected to the indoor drain pipe 106 and the outdoor drain pipe 108. Specifically, the upper end of the first inner pipe 22 is inserted into the indoor drain pipe 106, and the inner pipe 14 and the indoor drain pipe 106 are bonded and joined. Further, the outdoor drain pipe 108 is inserted into the second receiving port 90 of the external joint 80, and the inner pipe 14 and the outdoor drain pipe 106 are bonded and joined (see FIG. 1).

このように、排水管継手10では、可撓性を有さない各内管部20、22、24を接続して内管14を形成するため、内管にフレキシブル管を用いる場合と比較して、管内面の平滑性に優れる。また、鞘管を壁際に下りてくる屋内排水管の周辺に立ち上げても、内管の排水性能は低減しないため、内管14を壁際に下りてくる屋内排水管106の近傍に立ち上げて、内管14と屋内排水管106とを単純な配管で接続することができる。したがって、安定した排水性能を発揮する配管構造を実現することができる。   In this way, in the drainage pipe joint 10, the inner pipe portions 20, 22, and 24 that are not flexible are connected to form the inner pipe 14, so that compared with the case where a flexible pipe is used as the inner pipe. Excellent in the smoothness of the tube inner surface. Further, even if the sheath pipe is raised around the indoor drain pipe that descends toward the wall, the drainage performance of the inner pipe is not reduced. Therefore, the inner pipe 14 is raised near the indoor drain pipe 106 that descends toward the wall. The inner pipe 14 and the indoor drain pipe 106 can be connected by a simple pipe. Therefore, a piping structure that exhibits stable drainage performance can be realized.

また、排水管継手10では、内管14を形成する各内管部20、22、24のそれぞれが鞘管12から屋内或いは屋外に抜き差し可能に形成される。これにより、基礎100を傷めることなく内管14の補修や交換が可能であるため、住宅の品質確保促進法における維持管理の容易性に関して等級2以上に適合される。さらに、排水管継手10によって基礎貫通配管構造を形成する際に、鞘管12の設置後であっても、内管14を配置することができる。したがって、現場に応じた施工方法および施工手順を選択することができ、建築物の基礎を貫通する配管構造を効率よく容易に実現することができる。   Further, in the drainage pipe joint 10, each of the inner pipe portions 20, 22, 24 forming the inner pipe 14 is formed so as to be removable from the sheath pipe 12 indoors or outdoors. As a result, the inner pipe 14 can be repaired or replaced without damaging the foundation 100, and therefore, it is adapted to grade 2 or higher with respect to the ease of maintenance in the quality assurance promotion method for houses. Furthermore, when forming the basic through-pipe structure with the drainage pipe joint 10, the inner pipe 14 can be disposed even after the sheath pipe 12 is installed. Therefore, a construction method and a construction procedure according to the site can be selected, and a piping structure that penetrates the foundation of the building can be realized efficiently and easily.

また、角筒状部26aと円筒状部26bとによって形成される第1筒部26の平面視の内形が、その同方向からの屈曲内管部20の平面視の外形に対応した略同等の大きさを有するため、第1鞘管部16内に配置した屈曲内管部20の位置を保持することができる。そしてまた、第1鞘管部16を、たとえば屈曲内管部20を収容可能な円筒状に形成する場合と比較して、断面積を小さく抑えることができる。したがって、排水管継手10を形成する際に、基礎型枠内に配置されている配筋110同士の間隔が狭くても、鞘管12の設置が可能である。   In addition, the inner shape in plan view of the first tube portion 26 formed by the rectangular tubular portion 26a and the cylindrical portion 26b is substantially equivalent to the outer shape in plan view of the bent inner tube portion 20 from the same direction. Therefore, the position of the bent inner tube portion 20 disposed in the first sheath tube portion 16 can be maintained. And compared with the case where the 1st sheath pipe part 16 is formed in the cylindrical shape which can accommodate the bending inner pipe part 20, for example, a cross-sectional area can be restrained small. Therefore, when the drainage pipe joint 10 is formed, the sheath pipe 12 can be installed even if the spacing between the reinforcing bars 110 arranged in the basic formwork is narrow.

さらに、排水管継手10では、第1鞘管部16の外面に、第1鞘管部16を配筋110に固定するための配筋固定部38が形成される。配筋固定部38は、第1鞘管部16の外面と配筋110或いは固定筋112とを当接させて固定するため、上下方向のみならず、市販の支持具114では確保できないねじれ方向に対する強度を確保することができる。さらに、配筋固定部38の外側先端に厚みを形成することによって、嵌め込んだ配筋110或いは固定筋112は外れずに固定される。これにより、コンクリートを打設するなど建築物の基礎100を埋め戻す際に、鞘管12の傾きを防止することができる。   Furthermore, in the drainage pipe joint 10, a bar arrangement fixing portion 38 for fixing the first sheath pipe portion 16 to the bar arrangement 110 is formed on the outer surface of the first sheath pipe portion 16. Since the reinforcing bar fixing portion 38 fixes the outer surface of the first sheath tube portion 16 and the reinforcing bar 110 or the fixing bar 112 in contact with each other, not only in the vertical direction but also in the twisting direction that cannot be secured by the commercially available support tool 114. Strength can be secured. Further, by forming a thickness at the outer end of the reinforcing bar fixing portion 38, the inserted reinforcing bar 110 or fixing bar 112 is fixed without being detached. Thereby, when the foundation 100 of a building is backfilled, such as placing concrete, the inclination of the sheath tube 12 can be prevented.

また、排水管継手10では、第2鞘管部18にリブ60が形成され、リブ60の内面側にシール材62が設けられる。シール材62は、第2鞘管部18内に設けられる第2内管部24の外周面と当接して、第2鞘管部18と第2内管部24との隙間を充填する。したがって、鞘管12と内管14との隙間からの、建築物内への水や虫などの浸入を防止することができる。   In the drainage pipe joint 10, a rib 60 is formed on the second sheath pipe portion 18, and a sealing material 62 is provided on the inner surface side of the rib 60. The sealing material 62 is in contact with the outer peripheral surface of the second inner tube portion 24 provided in the second sheath tube portion 18 and fills the gap between the second sheath tube portion 18 and the second inner tube portion 24. Therefore, it is possible to prevent water and insects from entering the building from the gap between the sheath tube 12 and the inner tube 14.

さらに、排水管継手10では、屈曲内管部20に当接部72が形成され、第1鞘管部16に座部36として機能する底面34が形成されるため、屈曲内管部20と第1鞘管部16とが嵌まるように当接する。これにより、第1鞘管部16内に収容される屈曲内管部20の位置を固定することができる。したがって、屈曲内管部20を第1鞘管部16内に容易に配置できると共に、配置後も屈曲内管部20の位置を保持することができる。   Further, in the drainage pipe joint 10, the contact portion 72 is formed on the bent inner tube portion 20, and the bottom surface 34 that functions as the seat portion 36 is formed on the first sheath tube portion 16. It abuts so that one sheath pipe part 16 may fit. Thereby, the position of the bent inner tube portion 20 accommodated in the first sheath tube portion 16 can be fixed. Therefore, the bent inner tube portion 20 can be easily arranged in the first sheath tube portion 16, and the position of the bent inner tube portion 20 can be maintained even after the arrangement.

また、内管14は、現地で長さ調整した第1内管部22を接続することができる継管構造であり、さらに、鞘管12も、現地で長さ調整した調整管90を接続することができる継管構造である。これにより、建築物の基礎水平部102の厚さに合わせて、鞘管12および内管14の垂直方向に立ち上がる長さを適宜調整することができる。したがって、排水管継手10は、各種寸法、たとえば深基礎などの寸法にも対応することができる。   Further, the inner pipe 14 has a connecting structure capable of connecting the first inner pipe portion 22 whose length is adjusted locally, and the sheath pipe 12 is also connected to the adjusting pipe 90 whose length is adjusted locally. It is a connecting pipe structure that can. Thereby, according to the thickness of the foundation horizontal part 102 of a building, the length which stands | starts up in the perpendicular direction of the sheath pipe 12 and the inner pipe 14 can be adjusted suitably. Therefore, the drainage pipe joint 10 can cope with various dimensions, for example, dimensions such as a deep foundation.

さらにまた、基礎型枠120内に鞘管12を配置する際に、鞘管12の屋外側の管端と内管14の屋外側の管端とを揃えて基礎型枠120に当接させることができる。これにより、基礎型枠120内に鞘管12を配置するために型枠をくりぬく等の施工をしなくてもよい。したがって、基礎貫通構造を形成する際の施工効率が向上する。   Furthermore, when the sheath tube 12 is arranged in the basic mold 120, the tube end on the outdoor side of the sheath tube 12 and the tube end on the outdoor side of the inner tube 14 are aligned and brought into contact with the basic mold 120. Can do. Thereby, in order to arrange the sheath tube 12 in the basic formwork 120, it is not necessary to perform construction such as hollowing out the formwork. Therefore, the construction efficiency when forming the foundation penetration structure is improved.

なお、上述の実施例では、内管14は、別体として成形した屈曲内管部20、第1内管部22および第2内管部24を組み合わせることによって形成したが、これに限定される必要はない。たとえば、図26に示すように、屈曲内管部20と第1内管部22とを一体に成形し、それに第2内管部24を組み合わせることによって内管14を形成することもできる。   In the above-described embodiment, the inner tube 14 is formed by combining the bent inner tube portion 20, the first inner tube portion 22, and the second inner tube portion 24, which are separately formed, but is not limited thereto. There is no need. For example, as shown in FIG. 26, the inner tube 14 can be formed by integrally forming the bent inner tube portion 20 and the first inner tube portion 22 and combining the second inner tube portion 24 therewith.

また、上述の実施例では、一端が垂直方向に開口し、他端が水平方向に開口する第1鞘管部16、および両端が水平方向に開口する第2鞘管部18を別体に成形して、それらを組み合わすことによって鞘管12を形成したが、これに限定される必要はない。たとえば、図27に示すように、第2鞘管部18の上流側の端を垂直上方向に向けて少し突出させて、そこに両端が垂直方向に開口する第1鞘管部16を接続してもよい。   Further, in the above-described embodiment, the first sheath tube portion 16 having one end opened in the vertical direction and the other end opened in the horizontal direction, and the second sheath tube portion 18 having both ends opened in the horizontal direction are separately formed. Thus, the sheath tube 12 is formed by combining them, but it is not necessary to be limited to this. For example, as shown in FIG. 27, the end on the upstream side of the second sheath tube portion 18 is slightly protruded vertically upward, and the first sheath tube portion 16 having both ends opened vertically is connected thereto. May be.

また、上述の実施例では、第1鞘管部16に形成される底面34が、座部36として機能したが、これに限定される必要はない。たとえば、図示は省略するが、底面34を平面状に形成し、その内面に、たとえば凹凸形状などで形成される座部36を形成してもよい。この場合には、その座部36の凹凸形状に相当する当接部72を屈曲内管部20に形成する。   Moreover, in the above-mentioned Example, although the bottom face 34 formed in the 1st sheath pipe part 16 functioned as the seat part 36, it is not necessary to be limited to this. For example, although illustration is omitted, the bottom surface 34 may be formed in a flat shape, and a seat portion 36 formed in, for example, an uneven shape may be formed on the inner surface. In this case, a contact portion 72 corresponding to the uneven shape of the seat portion 36 is formed in the bent inner tube portion 20.

さらに、上述の実施例では、第1筒部26は、半四角筒状に形成される角筒状部26aと半円筒状に形成される円筒状部26bとを連ねることにより、垂直方向の断面が馬蹄形状を有する筒状に形成されたが、これに限定される必要はない。たとえば、図28(A)および図28(B)に示すように、第1鞘管部16の第1筒部26を、四角筒の一部が欠けた形状を有する角筒状部26aと円筒状に形成される円筒状部26bとを連ねた筒状に形成してもよい。   Further, in the above-described embodiment, the first cylindrical portion 26 has a vertical cross section by connecting the rectangular cylindrical portion 26a formed in a semi-rectangular cylindrical shape and the cylindrical portion 26b formed in a semi-cylindrical shape. Is formed in a cylindrical shape having a horseshoe shape, but is not necessarily limited thereto. For example, as shown in FIGS. 28 (A) and 28 (B), the first tube portion 26 of the first sheath tube portion 16 is replaced with a rectangular tube-shaped portion 26a having a shape in which a part of a square tube is cut off and a cylinder. You may form in the cylinder shape which connected the cylindrical part 26b formed in a shape.

さらにまた、上述の実施例では、第1鞘管部16が垂直に配置され、第2鞘管部18が水平に配置されたが、これに限定される必要はない。たとえば、図29に示すように、第1鞘管部16を略垂直方向に配置してもよい。なお、この場合には、屈曲内管部20を、第1鞘管部16の軸方向と直交する方向における屈曲内管部の最大幅W3が、屈曲内管部20の最大幅と同方向における第1鞘管部16の内部の幅W4よりも小さく、第2鞘管部18から屋内に抜き差し可能に形成するとよい。   Furthermore, in the above-described embodiment, the first sheath tube portion 16 is disposed vertically and the second sheath tube portion 18 is disposed horizontally, but it is not necessary to be limited to this. For example, as shown in FIG. 29, the first sheath tube portion 16 may be arranged in a substantially vertical direction. In this case, the maximum width W3 of the bent inner tube portion 20 in the direction orthogonal to the axial direction of the first sheath tube portion 16 is the same as the maximum width of the bent inner tube portion 20. It is preferable that the width is smaller than the inner width W4 of the first sheath tube portion 16 so that the second sheath tube portion 18 can be inserted and removed indoors.

図30および図31に示すこの発明の他の一実施例である排水管継手10では、屈曲内管部20は、第2鞘管部18から屋外に抜き差し可能に形成される。以下、図1に示す排水管継手と同様である部分に関しては、詳細な説明は省略する。   In the drain pipe joint 10 according to another embodiment of the present invention shown in FIGS. 30 and 31, the bent inner pipe portion 20 is formed to be detachable from the second sheath pipe portion 18 outdoors. Hereinafter, detailed description of the same parts as the drainage pipe joint shown in FIG. 1 is omitted.

図30および図31に示すように、第1鞘管部16は、垂直方向に延びる円筒状に形成される第1筒部26を含み、その内部には、第1内管部22が配置される。また、第1鞘管部16には、リブ94が形成される。リブ94は、第1筒部26の管壁が径方向の外側に向けて環状に突出して形成される。リブ94内には、ゴム輪などによって形成されるシール材96が設けられる。シール材96は、第1鞘管部16の内部に設けられる第1内管部22の外面と当接する。   As shown in FIGS. 30 and 31, the first sheath tube portion 16 includes a first tube portion 26 formed in a cylindrical shape extending in the vertical direction, and the first inner tube portion 22 is disposed therein. The Further, a rib 94 is formed on the first sheath tube portion 16. The rib 94 is formed such that the tube wall of the first cylindrical portion 26 protrudes in an annular shape toward the outside in the radial direction. In the rib 94, a sealing material 96 formed by a rubber ring or the like is provided. The sealing material 96 comes into contact with the outer surface of the first inner tube portion 22 provided inside the first sheath tube portion 16.

第2鞘管部18は、水平方向に延びる筒状に形成される第2筒部40を含み、その内部には、屈曲内管部20および第2内管部24が配置される。第2筒部40は、半四角筒状に形成される角筒状部40aと、半円筒状に形成される円筒状部40bとを連ねた筒状に形成される。第2筒部40は、水平方向からの平面視の内形がいわゆる馬蹄形状を有しており、屈曲内管部20の同方向からの平面視の外形に対応した略同等の大きさに形成される。   The 2nd sheath pipe part 18 contains the 2nd cylinder part 40 formed in the cylinder shape extended in a horizontal direction, and the bending inner pipe part 20 and the 2nd inner pipe part 24 are arrange | positioned in the inside. The second cylindrical portion 40 is formed in a cylindrical shape in which a rectangular cylindrical portion 40a formed in a semi-rectangular cylindrical shape and a cylindrical portion 40b formed in a semi-cylindrical shape are connected. The second cylindrical part 40 has a so-called horseshoe shape in the plan view from the horizontal direction, and has a substantially equivalent size corresponding to the plan view profile from the same direction of the bent inner tube part 20. Is done.

屈曲内管部20は、90°エルボ状に形成され、その両端には垂直方向に開口して屈曲内管部20の始端となる流入口66、および水平方向に開口して屈曲内管部20の終端となる流出口68が形成される。また、内管屈曲部20は、水平方向からの平面視で馬蹄形状を有している。たとえば、流入口66の内面にはゴム溝92が形成され、ゴム輪が設けられる。流入口66には、第1内管部22が挿入されて、屈曲内管部20と第1内管部22とが水密状態でゴム輪接合される。流出口68には、第2内管部24が挿入されて、屈曲内管部20と第2内管部24とが接着接合される。   The bent inner tube portion 20 is formed in a 90 ° elbow shape, and has an inflow port 66 that opens in the vertical direction at both ends thereof and serves as a starting end of the bent inner tube portion 20, and opens in the horizontal direction to bend the inner tube portion 20. The outflow port 68 which becomes the terminal of is formed. Further, the inner tube bending portion 20 has a horseshoe shape in plan view from the horizontal direction. For example, a rubber groove 92 is formed on the inner surface of the inlet 66 and a rubber ring is provided. The first inner tube portion 22 is inserted into the inflow port 66, and the bent inner tube portion 20 and the first inner tube portion 22 are joined in a rubber-tight state in a watertight state. The second inner tube portion 24 is inserted into the outlet 68, and the bent inner tube portion 20 and the second inner tube portion 24 are adhesively bonded.

さらに、屈曲内管部20は、流入口66すなわち始端と、流出口68すなわち終端とを第2鞘管部18の内部に有するように配置される。ただし、ここにいう「第2鞘管部18の内部」とは、別体に成形された第1鞘管部16と第2鞘管部18との接続箇所によって一義的に判断されるのではなく、第2鞘管部18の延長線上に屈曲内管部20の始端と終端とが収まり、屈曲内管部20が第2鞘管部18から屋外に抜き差し可能であることを指す。   Further, the bent inner tube portion 20 is disposed so as to have an inflow port 66, that is, a start end, and an outflow port 68, that is, a terminal end, inside the second sheath tube portion 18. However, the “inside of the second sheath tube portion 18” as used herein is not uniquely determined by the connection location between the first sheath tube portion 16 and the second sheath tube portion 18 formed separately. In other words, the start end and the end of the bent inner tube portion 20 are accommodated on the extension line of the second sheath tube portion 18, and the bent inner tube portion 20 can be inserted and removed from the second sheath tube portion 18 outdoors.

換言すると、この実施例においては、垂直方向(第2鞘管部の管軸方向と直交する方向)における屈曲内管部の最大幅、すなわち流入口66の垂直上方向の端とその反対側における流出口68の端との垂直距離W5が、その同方向における第2鞘管部18の内部の幅W6よりも小さく、屈曲内管部20が第2鞘管部18から屋内に抜き差し可能であることを示す(図31参照)。   In other words, in this embodiment, the maximum width of the bent inner tube portion in the vertical direction (the direction perpendicular to the tube axis direction of the second sheath tube portion), that is, the vertical upper end of the inflow port 66 and the opposite side thereof. The vertical distance W5 from the end of the outlet 68 is smaller than the width W6 inside the second sheath tube portion 18 in the same direction, and the bent inner tube portion 20 can be inserted into and removed from the second sheath tube portion 18 indoors. (See FIG. 31).

このように、図30に示す実施例においても、可撓性を有さない各内管部20、22、24を接続することによって内管14が形成されるため、図1の実施例と同様の作用効果を奏する。   As described above, in the embodiment shown in FIG. 30 as well, the inner tube 14 is formed by connecting the inner tube portions 20, 22, and 24 having no flexibility. Has the effect of.

なお、図30に示す実施例では、内管14は、別体として成形した屈曲内管部20、第1内管部22および第2内管部24を組み合わせることによって形成したが、これに限定される必要はない。たとえば、図32に示すように、屈曲内管部20と第2内管部24とを一体に成形し、それに第1内管部22を組み合わせることによって内管14を形成することもできる。   In the embodiment shown in FIG. 30, the inner tube 14 is formed by combining the bent inner tube portion 20, the first inner tube portion 22, and the second inner tube portion 24, which are separately formed, but the present invention is not limited thereto. There is no need to be done. For example, as shown in FIG. 32, the inner tube 14 can be formed by integrally forming the bent inner tube portion 20 and the second inner tube portion 24 and combining the first inner tube portion 22 therewith.

また、図30に示す実施例では、一端が垂直方向に開口し、他端が水平方向に開口する第1鞘管部16、および両端が水平方向に開口する第2鞘管部18を別体に成形して、それらを組み合わすことによって鞘管12を形成したが、これに限定さる必要はない。たとえば、図33に示すように、第2鞘管部18の上流側の端を垂直上方向に向けて少し突出させて、そこに両端が垂直方向に開口する第1鞘管部16を接続してもよい。   In the embodiment shown in FIG. 30, the first sheath tube portion 16 having one end opened in the vertical direction and the other end opened in the horizontal direction, and the second sheath tube portion 18 having both ends opened in the horizontal direction are separated. Although the sheath tube 12 was formed by combining them and combining them, it is not necessary to be limited to this. For example, as shown in FIG. 33, the end on the upstream side of the second sheath tube portion 18 is slightly protruded vertically upward, and the first sheath tube portion 16 having both ends opened vertically is connected thereto. May be.

なお、上述の各実施例ではいずれも、内管14と屋内排水管106とを直接接続したが、これに限定される必要はない。たとえば、図34に示すように、合流桝118を介して内管14と屋内排水管106とを接続してもよい。この場合には、合流桝118を壁際に設置することができるため、建築物の床下スペースを有効利用することができる。   In each of the above-described embodiments, the inner pipe 14 and the indoor drain pipe 106 are directly connected. However, the present invention is not limited to this. For example, as shown in FIG. 34, the inner pipe 14 and the indoor drain pipe 106 may be connected via a junction ridge 118. In this case, since the confluence 118 can be installed near the wall, the underfloor space of the building can be used effectively.

また、上述の各実施例ではいずれも、第1鞘管部16および第2鞘管部18のそれぞれに形成される雌ネジ32と雄ネジ46とを螺合して鞘管12を形成したが、これに限定される必要はない。たとえば、接着接合によって第1鞘管部16と第2鞘管部18とを固着してもよい。さらにまた、第1鞘管部16と第2鞘管部18とを一体に成形してもよい。   In each of the above-described embodiments, the sheath tube 12 is formed by screwing the female screw 32 and the male screw 46 formed in each of the first sheath tube portion 16 and the second sheath tube portion 18. It is not necessary to be limited to this. For example, the first sheath tube portion 16 and the second sheath tube portion 18 may be fixed by adhesive bonding. Furthermore, the first sheath tube portion 16 and the second sheath tube portion 18 may be integrally formed.

さらに、上述の各実施例ではいずれも、配筋固定部38は、第1鞘管部16と一体に形成されたが、これに限定される必要はない。たとえば、別体に成形した配筋固定部38を接着接合等することによって、後で鞘管12に設けることもできる。これによって、支持具114によって鞘管12を設置した後、固定筋112の位置に合わせ配筋固定部38を設けることができる。また、水平方向に延びる中空の板状にも限定されず、固定筋112を固定できる任意の形状に形成することができる。さらに、鞘管12の管壁を内側に窪ませた凹状の配筋固定部38を形成することもできる。さらにまた、配筋固定部38を第2鞘管部18に設けることもできる。   Furthermore, in each of the above-described embodiments, the reinforcing bar fixing portion 38 is formed integrally with the first sheath tube portion 16, but it is not necessary to be limited to this. For example, the reinforcing bar 38 formed separately can be provided on the sheath tube 12 later by adhesive bonding or the like. Thus, after the sheath tube 12 is installed by the support 114, the bar arrangement fixing portion 38 can be provided in accordance with the position of the fixing muscle 112. Moreover, it is not limited to the hollow plate shape extended in a horizontal direction, It can form in the arbitrary shapes which can fix the fixed reinforcement 112. FIG. Furthermore, the concave reinforcement arrangement | positioning fixing | fixed part 38 which hollowed the tube wall of the sheath tube 12 inside can also be formed. Furthermore, the bar arrangement fixing portion 38 can be provided in the second sheath tube portion 18.

なお、上で上げた寸法の具体的な数字はいずれも単なる一例であり、必要に応じて適宜変更可能である。   In addition, all the specific numbers of the dimensions raised above are merely examples, and can be appropriately changed as necessary.

この発明の一実施例の排水管継手によって屋内排水管と屋外排水管とを接続した様子を示す断面図である。It is sectional drawing which shows a mode that the indoor drain pipe and the outdoor drain pipe were connected by the drain pipe coupling of one Example of this invention. 図1の排水管継手を示す図解図である。It is an illustration figure which shows the drain pipe joint of FIG. 図1の排水管継手の第1鞘管部を示す斜視図である。It is a perspective view which shows the 1st sheath pipe part of the drain pipe joint of FIG. 図3の第1鞘管部を示す側面図である。It is a side view which shows the 1st sheath pipe part of FIG. 図3の第1鞘管部を示す背面図である。It is a rear view which shows the 1st sheath pipe part of FIG. 図3の第1鞘管部を示す上面図である。It is a top view which shows the 1st sheath pipe part of FIG. 図3の第1鞘管部に形成される配筋固定部を示す図解図である。It is an illustration figure which shows the reinforcement fixing | fixed part formed in the 1st sheath pipe part of FIG. 図1の排水管継手の第2鞘管部を示す斜視図である。It is a perspective view which shows the 2nd sheath pipe part of the drain pipe joint of FIG. 図8の第2鞘管部を示す平面図である。It is a top view which shows the 2nd sheath pipe part of FIG. 図8の第2鞘管部にシール材を設けた様子を示す図解図である。It is an illustration figure which shows a mode that the sealing material was provided in the 2nd sheath pipe part of FIG. 図1の排水管継手の屈曲内管部を示す斜視図である。It is a perspective view which shows the bending inner pipe part of the drain pipe joint of FIG. 図11の屈曲内管部を示す側面図である。It is a side view which shows the bending inner pipe part of FIG. 図11の屈曲内管部を示す背面図である。It is a rear view which shows the bending inner pipe part of FIG. 図11の屈曲内管部を示す上面図である。It is a top view which shows the bending inner pipe part of FIG. 図11の屈曲内管部を示す断面図である。It is sectional drawing which shows the bending inner pipe part of FIG. 図11の屈曲内管部が図3の第1鞘管部の内部に始端と終端とを有する様子を示す図解図である。It is an illustration figure which shows a mode that the bending inner pipe part of FIG. 11 has a start end and a termination | terminus in the inside of the 1st sheath pipe part of FIG. 略垂直に立ち上がる第1鞘管部に屈曲内管部を収容した様子を示す図解図である。It is an illustration figure which shows a mode that the bending inner pipe part was accommodated in the 1st sheath pipe part which stands | starts up substantially perpendicularly. 図1の排水管継手の外構継手を示す斜視図である。It is a perspective view which shows the exterior joint of the drain pipe joint of FIG. 図18の外構継手を示す断面図である。It is sectional drawing which shows the external coupling of FIG. 第1内管部に第2内管部を接続する様子を示す図解図である。It is an illustration figure which shows a mode that a 2nd inner pipe part is connected to a 1st inner pipe part. 第1鞘管部に第2鞘管部を接続する様子を示す図解図である。It is an illustration figure which shows a mode that a 2nd sheath pipe part is connected to a 1st sheath pipe part. 第1鞘管部に調整管を接続した様子を示す図解図である。It is an illustration figure which shows a mode that the adjustment pipe | tube was connected to the 1st sheath pipe part. 排水管継手を建築物の配筋に設けた様子を示す図解図である。It is an illustration figure which shows a mode that the drain pipe joint was provided in the reinforcement of the building. 第2鞘管部および第2内管部の管端を、建築物の基礎型枠に揃えた様子を示す図解図である。It is an illustration figure which shows a mode that the pipe end of the 2nd sheath pipe part and the 2nd inner pipe part was arranged in the basic formwork of the building. 第2鞘管部に外構継手を接続する様子を示す図解図である。It is an illustration figure which shows a mode that an exterior joint is connected to a 2nd sheath pipe part. 第2鞘管部に外構継手を接続する様子を示す図解図である。It is an illustration figure which shows a mode that an exterior joint is connected to a 2nd sheath pipe part. 図1の実施例の排水管継手の内管の変形例を示す図解図である。It is an illustration figure which shows the modification of the inner pipe of the drainage pipe coupling of the Example of FIG. 図1の実施例の排水管継手の鞘管の変形例を示す図解図である。It is an illustration figure which shows the modification of the sheath pipe of the drainage pipe coupling of the Example of FIG. (A)は、図1の実施例の排水管継手の鞘管の変形例を示す斜視図であり、(B)は、その上面図である。(A) is a perspective view which shows the modification of the sheath pipe of the drainage pipe coupling of the Example of FIG. 1, (B) is the top view. この発明の他の一実施例の排水管継手の鞘管および内管を示す図解図である。It is an illustration figure which shows the sheath pipe and inner pipe of the drain pipe joint of other one Example of this invention. 図30の屈曲内管部が第2鞘管部の内部に始端と終端とを有する様子を示す図解図である。It is an illustration figure which shows a mode that the bending inner pipe part of FIG. 30 has a start end and a termination | terminus in the inside of a 2nd sheath pipe part. 図30の実施例の排水管継手の内管の変形例を示す図解図である。FIG. 31 is an illustrative view showing a modified example of the inner pipe of the drain pipe joint of the embodiment of FIG. 30. 図30の実施例の排水管継手の鞘管の変形例を示す図解図である。It is an illustration figure which shows the modification of the sheath pipe of the drainage pipe coupling of the Example of FIG. この発明の他の一実施例の排水管継手によって合流桝と屋外排水管とを接続した様子を示す断面図である。It is sectional drawing which shows a mode that the confluence | merging gutter and the outdoor drainage pipe were connected by the drainage pipe coupling of other one Example of this invention.

符号の説明Explanation of symbols

10…排水管継手
12…鞘管
14…内管
16…第1鞘管部
18…第2鞘管部
20…屈曲内管部
22…第1内管部
24…第2内管部
80…外構継手
100…基礎
106…屋内排水管
108…屋外排水管
110…配筋
DESCRIPTION OF SYMBOLS 10 ... Drain pipe joint 12 ... Sheath pipe 14 ... Inner pipe 16 ... 1st sheath pipe part 18 ... 2nd sheath pipe part 20 ... Bending inner pipe part 22 ... 1st inner pipe part 24 ... 2nd inner pipe part 80 ... Outer Joint 100 ... Foundation 106 ... Indoor drain pipe 108 ... Outdoor drain pipe 110 ... Reinforcement

Claims (7)

鞘管内に屋内排水管と屋外排水管とを接続する内管が挿通される基礎貫通用の排水管継手であって、
前記鞘管は、垂直または略垂直に配置されて一端が屋内に開口する第1鞘管部と、前記第1鞘管部の他端から連通しかつ水平または略水平に配置されて屋外に開口する第2鞘管部とを含み、
前記内管は、前記第1鞘管部の内部に流入口と流出口とを有するように配置される屈曲内管部と、前記第1鞘管部に配置されて前記屈曲内管部と前記屋内排水管とを接続する第1内管部と、前記流出口に着脱自在に接続されかつ前記第2鞘管部に配置されて前記屈曲内管部と前記屋外排水管とを接続する第2内管部とを含み、
前記第1鞘管部および前記第2鞘管部の少なくともいずれか一方の外面に形成される配筋固定部、
前記第1鞘管部および前記第2鞘管部の少なくともいずれか一方の内面に設けられ、前記内管の外面と当接するシール材、
前記第1鞘管部および前記第2鞘管部の少なくともいずれか一方に形成され、前記屈曲内管部を位置決めするための座部、および
前記屈曲内管部に形成され、前記座部に当接する当接部を備え、さらに
前記屈曲内管部は、水平または略水平な第1方向における前記流出口の端から当該流出口とは反対側の前記流入口の端までの距離と、前記流入口の外径とが略等しくなる外形を有し、
前記第1鞘管部は、円筒状に形成される円筒状部と角筒状に形成される角筒状部とを連ねることにより、平面視において前記屈曲内管部の外形と略同等の大きさであってかつ前記第1方向における前記円筒状部の端から前記角筒状部の端までの距離と、前記第1方向に直交しかつ水平または略水平な第2方向における最大幅とが略等しい内形を有する筒状に形成される、排水管継手。
A drainage pipe joint for base penetration through which an inner pipe connecting an indoor drainage pipe and an outdoor drainage pipe is inserted into a sheath pipe,
The sheath tube is arranged vertically or substantially vertically and has one end opened indoors, and one end of the sheath tube communicates from the other end of the first sheath tube portion, and is disposed horizontally or substantially horizontally and opened outdoors. A second sheath tube part
The inner tube is disposed in the first sheath tube portion so as to have an inflow port and an outflow port, the bent inner tube portion is disposed in the first sheath tube portion, and the bent inner tube portion A first inner pipe part connecting the indoor drain pipe, a second inner pipe detachably connected to the outlet and disposed in the second sheath pipe part to connect the bent inner pipe part and the outdoor drain pipe. Including an inner pipe part,
A bar arrangement fixing portion formed on the outer surface of at least one of the first sheath tube portion and the second sheath tube portion,
A seal material provided on the inner surface of at least one of the first sheath tube portion and the second sheath tube portion, and abutting against the outer surface of the inner tube;
A seat portion for positioning the inner tube portion, and a bent tube portion formed on at least one of the first sheath tube portion and the second sheath tube portion; And a bent inner pipe portion , wherein the bent inner pipe portion has a distance from an end of the outlet in the horizontal or substantially horizontal first direction to an end of the inlet opposite to the outlet, and the flow Having an outer shape that is substantially equal to the outer diameter of the inlet
The first sheath tube portion is connected to a cylindrical portion formed in a cylindrical shape and a rectangular tube portion formed in a rectangular tube shape, so that the first sheath tube portion is substantially the same size as the outer shape of the bent inner tube portion in plan view. And the distance from the end of the cylindrical portion to the end of the rectangular tube-shaped portion in the first direction, and the maximum width in the second direction that is orthogonal to the first direction and that is horizontal or substantially horizontal. A drainage pipe joint formed in a cylindrical shape having substantially the same inner shape.
鞘管内に屋内排水管と屋外排水管とを接続する内管が挿通される基礎貫通用の排水管継手であって、
前記鞘管は、垂直または略垂直に配置されて一端が屋内に開口する第1鞘管部と、前記第1鞘管部の他端から連通しかつ水平または略水平に配置されて屋外に開口する第2鞘管部とを含み、
前記内管は、前記第2鞘管部の内部に流入口と流出口とを有するように配置される屈曲内管部と、前記流入口に着脱自在に接続されかつ前記第1鞘管部に配置されて前記屈曲内管部と前記屋内排水管とを接続する第1内管部と、前記第2鞘管部に配置されて前記屈曲内管部と前記屋外排水管とを接続する第2内管部とを含み、
前記第1鞘管部および前記第2鞘管部の少なくともいずれか一方の外面に形成される配筋固定部、
前記第1鞘管部および前記第2鞘管部の少なくともいずれか一方の内面に設けられ、前記内管の外面と当接するシール材、
前記第1鞘管部および前記第2鞘管部の少なくともいずれか一方に形成され、前記屈曲内管部を位置決めするための座部、および
前記屈曲内管部に形成され、前記座部に当接する当接部を備え、さらに
前記屈曲内管部は、垂直または略垂直な第3方向における前記流入口の端から当該流入口とは反対側の前記流出口の端までの距離と、前記流出口の外径とが略等しくなる外形を有し、
前記第2鞘管部は、円筒状に形成される円筒状部と角筒状に形成される角筒状部とを連ねることにより、平面視において前記屈曲内管部の外形と略同等の大きさであってかつ前記第3方向における前記円筒状部の端から前記角筒状部の端までの距離と、前記第3方向に直交しかつ垂直または略垂直な第4方向における最大幅とが略等しい内形を有する筒状に形成される、排水管継手。
A drainage pipe joint for base penetration through which an inner pipe connecting an indoor drainage pipe and an outdoor drainage pipe is inserted into a sheath pipe,
The sheath tube is arranged vertically or substantially vertically and has one end opened indoors, and one end of the sheath tube communicates from the other end of the first sheath tube portion, and is disposed horizontally or substantially horizontally and opened outdoors. A second sheath tube part
The inner tube includes a bent inner tube portion disposed so as to have an inlet and an outlet in the second sheath tube portion, and is detachably connected to the inlet and is connected to the first sheath tube portion. A second inner pipe disposed to connect the bent inner pipe and the indoor drain pipe, and a second inner pipe connected to the second outer pipe and the second inner pipe connected to the outdoor drain pipe. Including an inner pipe part,
A bar arrangement fixing portion formed on the outer surface of at least one of the first sheath tube portion and the second sheath tube portion,
A seal material provided on the inner surface of at least one of the first sheath tube portion and the second sheath tube portion, and abutting against the outer surface of the inner tube;
A seat portion for positioning the inner tube portion, and a bent tube portion formed on at least one of the first sheath tube portion and the second sheath tube portion; And a bent inner pipe portion , wherein the bent inner pipe portion has a distance from an end of the inflow port to an end of the outflow port on the opposite side to the inflow port in a vertical or substantially vertical third direction; Having an outer shape that is substantially equal to the outer diameter of the outlet
The second sheath tube portion is connected to a cylindrical portion formed in a cylindrical shape and a rectangular tube shape portion formed in a rectangular tube shape, so that the second sheath tube portion is substantially the same size as the outer shape of the bent inner tube portion in a plan view. And the distance from the end of the cylindrical portion to the end of the rectangular tube-shaped portion in the third direction, and the maximum width in the fourth direction perpendicular to or substantially perpendicular to the third direction. A drainage pipe joint formed in a cylindrical shape having substantially the same inner shape.
前記第1鞘管部の上端には、調整管を挿入するための短円筒状の開口部が形成される、請求項1または2記載の排水管継手。   The drain pipe joint according to claim 1 or 2, wherein a short cylindrical opening for inserting the adjustment pipe is formed at an upper end of the first sheath pipe part. 前記配筋固定部は、並べて形成される複数の板状体を含み、隣接する前記板状体どうしの間に配筋を嵌め込むことによって、前記鞘管と前記配筋とを固定する、請求項1ないし3のいずれかに記載の排水管継手。   The bar arrangement fixing portion includes a plurality of plate-like bodies formed side by side, and the sheath tube and the bar arrangement are fixed by fitting the bar arrangement between the adjacent plate-like bodies. Item 4. A drainage pipe joint according to any one of Items 1 to 3. 前記当接部は、前記屈曲内管部の外面から板状に突出して形成される、請求項1ないし4のいずれかに記載の排水管継手。   The drainage pipe joint according to any one of claims 1 to 4, wherein the contact portion is formed so as to protrude in a plate shape from an outer surface of the bent inner pipe portion. 前記第2鞘管部には、軸方向に間隔を隔てて複数のリブが形成される、請求項1ないし5のいずれかに記載の排水管継手。   The drain pipe joint according to any one of claims 1 to 5, wherein a plurality of ribs are formed in the second sheath pipe portion at intervals in the axial direction. 請求項1ないし6のいずれかに記載の排水管継手を用いた基礎貫通配管構造。   A basic through piping structure using the drain pipe joint according to any one of claims 1 to 6.
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