JP2006336422A - Elbow joint - Google Patents

Elbow joint Download PDF

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JP2006336422A
JP2006336422A JP2005165886A JP2005165886A JP2006336422A JP 2006336422 A JP2006336422 A JP 2006336422A JP 2005165886 A JP2005165886 A JP 2005165886A JP 2005165886 A JP2005165886 A JP 2005165886A JP 2006336422 A JP2006336422 A JP 2006336422A
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elbow
elbow joint
joint
right angle
sectional area
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Hideyuki Maruyama
秀行 丸山
Yukihiro Hosoda
幸宏 細田
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Bridgestone Corp
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Bridgestone Corp
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Priority to JP2005165886A priority Critical patent/JP2006336422A/en
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  • Branch Pipes, Bends, And The Like (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elbow joint for remarkably improving settlement of the elbow joint, by miniaturizing an opening part formed on a bottom surface, by using this elbow joint, while largely reducing even flow rate resistance, by solving the problem of clogging, by daringly expanding a diameter in a part feared for the clogging. <P>SOLUTION: In this elbow joint when bending a horizontally laying pipe arranged on a floor surface at a substantially right angle, the elbow joint is constituted so that an internal-external shape inside of an elbow of the joint, is bent at a right angle along the opening part, and the internal shape outside of the elbow is formed as a circular curved surface of 1/4, and holds the cross-sectional area larger than the cross-sectional area of the horizontally laying pipe, and has the elbow joint A, an elbow part 3, the circular curved surface 3a, a floor 4, the opening part 5, the internal-external shape (a right angle) 6 inside of the elbow part 3, the horizontally laying pipe 11, and a metal fitting 12. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は排水システムのエルボ継手に関するものであり、特に言えば、サイフォン排水システムにおけるエルボ継手を提供するものである。   The present invention relates to an elbow joint of a drainage system, and more particularly, to provide an elbow joint in a siphon drainage system.

従来より行われている集合住宅や戸建て住宅における水廻り器具からの排水システムは、床面上に配置され、或いはこれに埋め込まれる排水管(以下横引き管という)に所定の勾配を付けることが義務付けられており、水廻り器具からの排水を適当に合流させて横引き管となし、これを立て管の合流継手に導く排水システムとしていた。   In the conventional drainage system from watering equipment in apartment houses and detached houses, a predetermined slope can be given to a drain pipe (hereinafter referred to as a horizontal pipe) that is placed on or embedded in the floor surface. The drainage system was required to make the drainage pipes from the watering devices properly merged into a horizontal pipe, which led to the junction joint of the vertical pipe.

このように、従来型の排水システムにあっては、横引き管に勾配を付けることから、横引き管が長い場合は、この床下も大きくすることが必要となり、床下に無駄なスペ−スができてしまうという点が指摘されていた。このため、横引き管をできるだけ短くするように設計する必要があり、設計の自由度に大きな限界があった。   As described above, in the conventional drainage system, since the horizontal pipe is provided with a gradient, if the horizontal pipe is long, it is necessary to enlarge the floor, and there is a wasteful space under the floor. It was pointed out that it could be done. For this reason, it is necessary to design the horizontal pulling tube to be as short as possible, and there is a great limit to the degree of freedom in design.

これらの欠点を解消するものとして近年になりサイフォン排水システムが提案されている(特許文献1)。かかる排水システムは、各水廻り器具からの横引き管には勾配を付ける必要がなく、例えば床面に単に配置するだけで十分排水が可能となるものであり、立て管への合流部を水廻り器具がある床面よりも下げた位置にて合流させるものである。かかる横引き管が配置される床面と合流部との落差Hの位置エネルギ−を用いて横引き管内の水にサイフォンを発生させ、一気に排水しようとする排水システムである。   In recent years, a siphon drainage system has been proposed to eliminate these drawbacks (Patent Document 1). In such a drainage system, it is not necessary to provide a gradient to the horizontal pipes from each watering device. For example, the drainage system can be sufficiently drained by simply placing it on the floor surface. It joins at a position that is lower than the floor where the surrounding equipment is. This is a drainage system that generates siphons in the water in the horizontal draw pipe using the potential energy of the drop H between the floor surface on which the horizontal draw pipe is arranged and the merging portion, and tries to drain at once.

かかるサイフォン排水システムでは、各水廻り器具からの排水を合流することなく立て管に導くため、管径が比較的細いものが用いられ、かつ、床下空間を小さくすることができる特徴がある。   Such a siphon drainage system is characterized in that since the drainage from each watering device is guided to the vertical pipe without joining it, one having a relatively thin pipe diameter is used and the underfloor space can be reduced.

特開平2000−297447号公報JP 2000-297447 A

しかるに、サイフォン型システムにおける水廻り器具からの横引き管は勾配を付けずにそのまま敷設されるものであり、全ての水廻り器具からの横引き管は他の管と合流することなく、そのまま床面に敷設され、立て管の周囲で下方に曲げ、そのまま合流部へ接続されることになる。上記の曲げ部には既存のエルボ継手が用いられるが、かかるエルボ継手を使用すると流量抵抗が大きく、物が詰まったり、管に水が直接ぶつかるため、排水騒音が大きかった。このため、エルボ部の曲げを大きくすると流量抵抗は小さくなるが、今度は床スラブに開ける穴を大きくしなくてはならず、かつ、このエルボ継手の納まりが悪くなるという欠点があった。尚、横引き管はコンクリ−ト駆体等を迂回して水平でほぼ直角に曲げられることがあるが、この際にも上記と同様の現象が起こる。   However, in the siphon type system, the horizontal pipes from the watering equipment are laid as they are without any gradient, and the horizontal pipes from all the watering equipment do not merge with other pipes as they are in the floor. It is laid on the surface, bent downward around the standpipe and connected as it is to the junction. Existing elbow joints are used for the above-mentioned bent portions. However, when such elbow joints are used, the flow resistance is large, clogging is caused, and water directly hits the pipe, resulting in a large drainage noise. For this reason, if the elbow part is increased in bending, the flow resistance is reduced, but this time there is a disadvantage that the hole to be opened in the floor slab has to be enlarged and the elbow joint is poorly accommodated. The horizontal pulling tube may be bent horizontally and substantially at a right angle by bypassing the concrete body and the like. In this case, the same phenomenon as described above occurs.

本発明の要旨は、床面に配備された横引き管をほぼ直角に折り曲げる際のエルボ継手であって、当該継手のエルボ内側の内外形状は前記開口部に添って直角に曲げられたものであり、エルボ外側の内形状は1/4の円曲面とし、かつ、前記横引き管の断面積よりも大きい断面積を保持したことを特徴とするものである。   The gist of the present invention is an elbow joint when a horizontal pipe arranged on the floor surface is bent at a substantially right angle, and the inner and outer shapes inside the elbow of the joint are bent at a right angle along the opening. In addition, the inner shape of the outer side of the elbow is a quarter curved surface, and the cross-sectional area larger than the cross-sectional area of the horizontal pipe is maintained.

本発明のエルボ継手は、詰まりが懸念される部分をあえて径を拡大したものであり、詰まりの問題も解消され、流量抵抗も大きく低減できたものである。そして、このエルボ継手を用いることにより、床面に形成する開口部を小さくすることができ、かつ、エルボ継手の納まりも格段によくなった。 The elbow joint of the present invention has an enlarged diameter intended for a portion where clogging is a concern, which eliminates the clogging problem and greatly reduces the flow resistance. And by using this elbow joint, the opening part formed in a floor surface can be made small, and the accommodation of the elbow joint also improved markedly.

本発明のエルボ継手は、拡径型排水用エルボ継手であり、特に、サイフォン力を使用した排水システムに使用する継手に好適である。以下、本発明の特徴を横引き管をそのまま垂下させる場合を中心に説明するが、前述したように水平にてほぼ直角に曲げられる場合(例えば、柱廻り)も含むことは言うまでもない。 The elbow joint of the present invention is an enlarged-diameter drainage elbow joint, and is particularly suitable for a joint used in a drainage system using siphon force. Hereinafter, the features of the present invention will be described centering on the case where the horizontal pipe is suspended as it is, but it is needless to say that the case where it is bent horizontally (for example, around a column) as described above is included.

上記したように、サイフォン排水システムにあっては、各水回り器具からの排水は途中で合流することなく、各器具からの横引き管がそのまま立て管の合流部に導かれるものである。従って、横引き管をそのまま垂下させる場合もあるが、通常はエルボ管に横引き管を接続する。しかしながら、従来のエルボ管にあっては、流量抵抗や管内の詰まり現象を加味してエルボ部の曲がり径がかなり大きくなっており、このため、床面に開ける開口部も大きくしなくてはならず、又、この開口部でのエルボ継手の納まりも悪かった。 As described above, in the siphon drainage system, the drainage from each watering device does not join in the middle, and the horizontal pulling tube from each device is led as it is to the joining portion of the standing tube. Therefore, although the horizontal pulling tube may be suspended as it is, the horizontal pulling tube is usually connected to the elbow tube. However, in the conventional elbow pipe, the bending diameter of the elbow part is considerably large in consideration of the flow resistance and the clogging phenomenon in the pipe. Therefore, the opening to be opened on the floor surface must be enlarged. In addition, the elbow joint fit in the opening was poor.

本発明はこれらの欠点を改良したものであり、エルボ管の内側の内外の形状を直角として床に開けられた開口部に添うようにされ、かつ、エルボ管の外側の内形状は1/4の円曲面とし、かつ、前記横引き管の断面積よりも大きい断面積を保持したものである。尚、エルボ管の内側の内外の形状を直角とするが、開口部との納まりの関係から、数学的に正確に直角とすることは求められないことは勿論であり、直角±5度程度の違いはここで言う直角内に含まれる。又、同様にエルボ管の外側の内形状は1/4の円曲面とするが、これもまた同様であり、若干の違いは許容されることは言うまでもない。 The present invention is an improvement of these disadvantages, and is designed to follow an opening opened in the floor with the inner and outer shapes of the elbow pipe at right angles, and the outer shape of the elbow pipe is 1/4. And having a cross-sectional area larger than the cross-sectional area of the horizontal pipe. Although the inner and outer shapes of the elbow pipe are right angles, of course, it is not required to mathematically accurately make a right angle from the relationship with the opening, and the right angle is about ± 5 degrees. The difference is included in the right angle here. Similarly, the inner shape of the outer side of the elbow tube is a ¼ circular curved surface, but this is also the same, and it is needless to say that a slight difference is allowed.

エルボ内側の内外形状は、開口部に合致するように直角に曲げられたものであり、エルボ外継手が開口部の縁に簡単に係止されることができるようになったものである。この直角部を形成するにあって、開発の当初は排水の流れに対して悪影響をもたらすと想定していたが、サイフォン排水システムにあっては、ほぼ問題のないことが判明した。 The inner and outer shapes inside the elbow are bent at right angles so as to match the opening, and the elbow outer joint can be easily locked to the edge of the opening. In forming this right-angled part, it was initially assumed that it would have an adverse effect on the drainage flow, but it was found that there was almost no problem with the siphon drainage system.

一方、エルボの外側の内形状が最も重要であることが分かったものであり、流量抵抗等を加味してこの部位の断面積を横引き管の断面積よりも大きい断面積としたものである。その大きさの程度は横引き管の+5〜40%程度であり、これによって流量抵抗や騒音の発生がほとんど問題とならなくなることから特定形状としたものである。 On the other hand, the outer shape of the elbow was found to be the most important, and the cross-sectional area of this part was made larger than the cross-sectional area of the horizontal draw pipe in consideration of flow resistance and the like. . The degree of the size is about +5 to 40% of the horizontal pulling tube, and the generation of flow resistance and noise hardly becomes a problem by this, so that the specific shape is obtained.

又、エルボ管の外側の内形状は1/4の円曲面としたが、これ又、概略の形状でよいことは勿論である。尚、エルボ管の外径は、通常は50〜150Rである。 In addition, the inner shape of the outer side of the elbow pipe is a quarter curved surface, but it is needless to say that it may be a rough shape. In addition, the outer diameter of an elbow pipe is 50-150R normally.

尚、本発明のエルボ管は通常は金属製ではあるが、場合によっては樹脂製であっても構わない。そして、好ましくはエルボ管の両先端にワンタッチ接続可能な継手構造としておくのがよく、これによって横引き管や垂下管との接続や交換が極めて容易となる。 Although the elbow pipe of the present invention is usually made of metal, it may be made of resin in some cases. A joint structure that can be connected to the both ends of the elbow pipe with one-touch connection is preferable. This makes it very easy to connect or replace the horizontal pipe or the drooping pipe.

以下、図面をもって本発明を更に詳細に説明する。
図1は従来のエルボ継手aの全体図である。そして、エルボ継手aの両先端にはワンタッチ接続機構1、2が備えられ、エルボ部3は横引き管11とほぼ同じ断面積となっている。そして、内部を流れる流体の抵抗や流体の衝突による騒音の発生を考慮してかなり大きな円曲面3aとなっている。勿論、エルボ部3の外面も同様である。このため、かかるエルボ継手aを用いて横引き管11の水平を維持して垂下させるには、床4に形成した開口部5を大きく開けることが必要になってくるだけでなく、その安定性もよくないことが分かる。
Hereinafter, the present invention will be described in more detail with reference to the drawings.
FIG. 1 is an overall view of a conventional elbow joint a. Further, one-touch connection mechanisms 1 and 2 are provided at both ends of the elbow joint a, and the elbow portion 3 has substantially the same cross-sectional area as the horizontal pulling tube 11. Considering the resistance of the fluid flowing inside and the generation of noise due to the collision of the fluid, the circular curved surface 3a is considerably large. Of course, the same applies to the outer surface of the elbow portion 3. For this reason, in order to maintain the horizontal of the horizontal pipe 11 by using such an elbow joint a, it is necessary not only to open the opening 5 formed in the floor 4 but also to stabilize it. I understand that it is not good.

図2は本発明のエルボ継手Aの全体図である。そして、エルボ継手Aの両先端にはワンタッチ接続機構(管保持リングやO−リングで構成される)1、2が備えられ、エルボ部3の外側の内外形状は円曲面3aとなっており、エルボ部3の断面積は横引き管11のそれよりも20%大きい断面積となっている。これによって、内部を流れる流体の抵抗や流体の衝突による騒音の発生をほぼ抑えることができたものである。 FIG. 2 is an overall view of the elbow joint A of the present invention. And both ends of the elbow joint A are provided with one-touch connection mechanisms (consisting of tube holding rings and O-rings) 1 and 2, and the outer and inner shapes of the elbow part 3 are circular curved surfaces 3a. The cross-sectional area of the elbow portion 3 is 20% larger than that of the horizontal pulling tube 11. As a result, the resistance of the fluid flowing inside and the generation of noise due to the collision of the fluid can be substantially suppressed.

そして、エルボ部3の内側の内外形状は、開口部5に合致するように直角6に曲げられたものである。これによって、図示するように床4に形成した開口部5の縁に係止可能となったものであり、開口部5も比較的小さな開口で十分であることが分かる。 The inner and outer shapes inside the elbow 3 are bent at a right angle 6 so as to match the opening 5. Thus, as shown in the figure, it can be locked to the edge of the opening 5 formed in the floor 4, and it can be seen that a relatively small opening is sufficient for the opening 5.

尚、横引き管11は通常は床4面に金具12で固定されるが、床面より10mm程度の高さに支持される。従って、エルボ部3の断面積が大きくなったとしてもその膨らみの分は施工の際は問題とならないことは言うまでもない。 The horizontal pipe 11 is normally fixed to the floor 4 with a metal fitting 12, but is supported at a height of about 10 mm from the floor. Therefore, it goes without saying that even if the cross-sectional area of the elbow portion 3 is increased, the amount of the bulge does not become a problem during construction.

図3は本発明のエルボ継手Aを水平の位置にて適用したものであり、例えば配管の際に邪魔となる柱廻りの平面図である。図中、7は柱であり、この柱7に対してエルボ継手Aの直角部6をもって当接した例である。このように、本発明のエルボ継手Aは、例えば、リフォ−ムの際の邪魔な構築物等を抵抗なく除けることが可能となったものである。 FIG. 3 shows an elbow joint A according to the present invention applied in a horizontal position, for example, a plan view around a column that becomes an obstacle in piping. In the figure, reference numeral 7 denotes a column, which is an example in which the column 7 is in contact with the right angle portion 6 of the elbow joint A. As described above, the elbow joint A of the present invention can remove, for example, an obstructive structure at the time of reform without resistance.

本発明にあっては、エルボ継手の形状を改良することによって床に形成した開口部を小さくでき、かつ、開口部に対して納まりが良くなったものであり、流量抵抗や騒音の面でも問題のない継手となったものであり、サイフォン排水システムの継手に用いられることは勿論、他の排水システムにも採用可能であり、更には排水のみならず、水を代表とする流体の移送時の継手として利用可能である。 In the present invention, the opening formed in the floor can be made smaller by improving the shape of the elbow joint, and the fit to the opening is improved, and there is a problem in terms of flow resistance and noise. It can be used for other drainage systems as well as used for siphon drainage systems, and it can be used not only for drainage but also for fluids such as water. It can be used as a joint.

図1は従来のエルボ継手aの全体図である。FIG. 1 is an overall view of a conventional elbow joint a. 図2は本発明のエルボ継手aの全体図である。FIG. 2 is an overall view of the elbow joint a of the present invention. 図3は本発明のエルボ継手aを水平位置にて使用した図である。FIG. 3 is a diagram in which the elbow joint a of the present invention is used in a horizontal position.

符号の説明Explanation of symbols

A‥エルボ継手、
1、2‥横引き管の接続機構、
3‥エルボ部、
3a‥円曲面、
4‥床、
5‥開口部、
6‥エルボ部3の内側の内外形状(直角)、
7‥柱、
11‥横引き管、
12‥金具。
A ... Elbow fitting,
1, 2, ... Horizontal pipe connection mechanism,
3. Elbow part
3a ... Circular surface,
4 ... floor,
5 ... opening,
6 ... Inner / outer shape (right angle) inside elbow 3
7. Pillar,
11 ... Horizontal pulling tube,
12 ... metal fittings.

Claims (4)

床面に配備された横引き管をほぼ直角に折り曲げる際のエルボ継手であって、当該継手のエルボ内側の内外形状は前記開口部に添って直角に曲げられたものであり、エルボ外側の内形状は1/4の円曲面とし、かつ、前記横引き管の断面積よりも大きい断面積を保持したことを特徴とするエルボ継手。   It is an elbow joint when a horizontal pipe arranged on the floor is bent at a substantially right angle, and the inner and outer shapes inside the elbow of the joint are bent at a right angle along the opening, An elbow joint characterized in that the shape is a ¼ circular curved surface and a cross-sectional area larger than the cross-sectional area of the horizontal pipe is maintained. エルボ継手が水平面にて折り曲げられた請求項1記載のエルボ継手。   The elbow joint according to claim 1, wherein the elbow joint is bent in a horizontal plane. エルボ継手が床面より直角に垂下された請求項1記載のエルボ継手。   The elbow joint according to claim 1, wherein the elbow joint is suspended at a right angle from the floor surface. エルボ部が、横引き管の断面積よりも5〜40%大きい断面積をもつ請求項1乃至3いずれか1記載のエルボ継手。   The elbow joint according to any one of claims 1 to 3, wherein the elbow portion has a cross-sectional area that is 5 to 40% larger than a cross-sectional area of the transverse pipe.
JP2005165886A 2005-06-06 2005-06-06 Elbow joint Pending JP2006336422A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008082153A (en) * 2006-08-28 2008-04-10 Bridgestone Corp Siphon drainage system and its improving method
JP2019190123A (en) * 2018-04-25 2019-10-31 株式会社ブリヂストン Piping construction method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122111U (en) * 1978-02-15 1979-08-27
JPH0318396A (en) * 1989-05-26 1991-01-25 Union Special Gmbh Band introducing device for machine
JPH08253959A (en) * 1995-01-17 1996-10-01 Noriatsu Kojima Fitting for drain pipe and drainage system using the fitting
JP2002018188A (en) * 2000-07-04 2002-01-22 Mitsubishi Plastics Ind Ltd Joint for washing machine pan
JP2003129541A (en) * 2001-10-26 2003-05-08 Sekisui Chem Co Ltd Drainage piping system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122111U (en) * 1978-02-15 1979-08-27
JPH0318396A (en) * 1989-05-26 1991-01-25 Union Special Gmbh Band introducing device for machine
JPH08253959A (en) * 1995-01-17 1996-10-01 Noriatsu Kojima Fitting for drain pipe and drainage system using the fitting
JP2002018188A (en) * 2000-07-04 2002-01-22 Mitsubishi Plastics Ind Ltd Joint for washing machine pan
JP2003129541A (en) * 2001-10-26 2003-05-08 Sekisui Chem Co Ltd Drainage piping system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008082153A (en) * 2006-08-28 2008-04-10 Bridgestone Corp Siphon drainage system and its improving method
JP2019190123A (en) * 2018-04-25 2019-10-31 株式会社ブリヂストン Piping construction method
CN110397123A (en) * 2018-04-25 2019-11-01 株式会社普利司通 The piping construction method of siphon drainge system
JP7070851B2 (en) 2018-04-25 2022-05-18 株式会社ブリヂストン Piping construction method
CN110397123B (en) * 2018-04-25 2022-06-24 株式会社普利司通 Piping construction method for siphon drainage system

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