JP2011158026A - Drainage flexible pipe and connecting part-connecting structure - Google Patents

Drainage flexible pipe and connecting part-connecting structure Download PDF

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JP2011158026A
JP2011158026A JP2010019917A JP2010019917A JP2011158026A JP 2011158026 A JP2011158026 A JP 2011158026A JP 2010019917 A JP2010019917 A JP 2010019917A JP 2010019917 A JP2010019917 A JP 2010019917A JP 2011158026 A JP2011158026 A JP 2011158026A
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tube
ridge
pipe
drainage
flexible
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JP5547979B2 (en
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Hideki Nishimura
英己 西村
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Aron Kasei Co Ltd
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Aron Kasei Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage flexible pipe which does not hinder a flow of drainage, and a connecting part-connecting structure which is simple in structure. <P>SOLUTION: In the drainage flexible pipe 1, an inner pipe 3 and an outer pipe 2 are brought into non-contact states when the inner pipe 3 is inserted into the outer pipe 2, an inner protrusion 3A of the inner pipe 3 is made to intrude inside an outer protrusion 2A of the outer pipe 2, and a deformable gap S is set between the inner protrusion 3A and the outer protrusion 2A. Furthermore, an overlapping parts 7 where the pipe end of the outer pipe 2 and the pipe end of the inner pipe 3 are overlapped with each other are formed at both ends of the drainage flexible pipe 1 respectively, and the overlapping part 7 is sandwiched by a sandwiching part 14 which is set at the flexible pipe side end of a connecting part 11, thus connecting the connecting part 11 to the drainage flexible pipe 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、屋内又は屋外で用いる排水用可撓管、および該排水用可撓管に接続部品を接続した接続部品接続構造に関するものである。   The present invention relates to a drainage flexible pipe used indoors or outdoors, and a connection part connection structure in which a connection part is connected to the drainage flexible pipe.

屋内又は屋外で用いる排水用可撓管は既に提供されており、例えば特許文献1には、コルゲート形状の外管と該外管内に挿入される内管とを有する二層コルゲート管が開示されている。該コルゲート管は可撓性を有するため、例えば建物の床下において曲線配管が可能である。   For example, Patent Document 1 discloses a double-layer corrugated pipe having a corrugated outer pipe and an inner pipe inserted into the outer pipe. Yes. Since the corrugated pipe has flexibility, for example, a curved pipe can be formed under the floor of a building.

また、特許文献2には、ガス管路に適用される二層構造の管路更生管が開示されている。該管路更生管は、凸条が設けられた外管と突条が設けられた内管との内外二重壁とした管体であり、該内管と該外管とを非接着状態としつつ該外管の凸条の内面に該内管の突条先端を接当させている。   Patent Document 2 discloses a two-layered pipe rehabilitation pipe applied to a gas pipe. The pipe rehabilitation pipe is a tubular body having an inner / outer double wall of an outer pipe provided with a ridge and an inner pipe provided with a ridge, and the inner pipe and the outer pipe are brought into a non-adhesive state. However, the end of the protrusion of the inner tube is in contact with the inner surface of the protrusion of the outer tube.

特開2005−233373号公報JP 2005-233373 A 特開2002−254536号公報JP 2002-254536 A

しかしながら、特許文献1に開示されている構成にあっては、内管が外管の内側に融着(接着)されているため、排水用可撓管を湾曲させた際に該内管が該外管に対して相対移動しながら湾曲できず、これにより該内管は歪んで座屈してしまうことがあった。このように外管内で内管が座屈してしまうと、該内管の内面に凹凸が形成され、該内管内を流れる排水中の異物が該凹凸部分に付着したり又は堆積したりするため、該排水の円滑な流動が阻害されてしまう。   However, in the configuration disclosed in Patent Document 1, since the inner tube is fused (adhered) to the inner side of the outer tube, the inner tube is bent when the drainage flexible tube is bent. In some cases, the inner tube cannot be bent while moving relative to the outer tube, which causes the inner tube to be distorted and buckled. When the inner tube buckles in the outer tube in this way, irregularities are formed on the inner surface of the inner tube, and foreign matter in the drainage flowing through the inner tube adheres to or accumulates on the irregular portions. The smooth flow of the waste water is hindered.

ここで、特許文献2で開示されているような該内管と該外管とを非接着状態とした構成を配水用可撓管に適用し、上記のような内管の座屈を防止することが考えられる。しかし、特許文献2に開示されている管路においては、内管の突条先端が外管の内周面に接触(接当)しているため、施工時に内管が湾曲した際に該突条の移動又は変形が制限されて該内管が好適に撓まず、さらに該内管の管壁が該突条部分で座屈を起こして、排水の流動を阻害するおそれがある。
また、特許文献2に開示されている実施例においては、外管が帯素材を螺旋状に巻回して形成されているため、該外管の管端に該帯素材を重ね合わせている部位が露出し、該部位において水密性が確保しにくいという問題がある。
また、特許文献2に開示されている他の実施例は、内管の内面に凹凸が形成されているため、該凹凸によって排水の流れが阻害されてしまう。
Here, a configuration in which the inner tube and the outer tube are not adhered as disclosed in Patent Document 2 is applied to a flexible pipe for water distribution to prevent the buckling of the inner tube as described above. It is possible. However, in the pipe line disclosed in Patent Document 2, the tip of the ridge of the inner pipe is in contact with (in contact with) the inner peripheral surface of the outer pipe. There is a possibility that the movement or deformation of the strip is limited and the inner tube does not bend properly, and the wall of the inner tube is buckled at the protruding portion, thereby inhibiting the flow of drainage.
In the embodiment disclosed in Patent Document 2, since the outer tube is formed by spirally winding a band material, there is a portion where the band material is superimposed on the tube end of the outer tube. There is a problem that it is exposed and it is difficult to ensure water tightness at the site.
Moreover, since the unevenness | corrugation is formed in the inner surface of an inner pipe, the other Example currently disclosed by patent document 2 will inhibit the flow of waste_water | drain by this unevenness | corrugation.

そこで、本発明は、上記問題を解決することができる排水用可撓管、および該排水用可撓管に接続部品を接続する接続部品接続構造を提供することを目的とする。   Therefore, an object of the present invention is to provide a flexible pipe for drainage that can solve the above problems, and a connection part connection structure that connects a connection part to the flexible pipe for drainage.

本発明は、上記問題を解決すべく、可撓性の外管と、該外管内に挿入されている可撓性の内管とからなる排水用可撓管であって、該外管をコルゲート形状に成形することにより、該外管の管壁に外向きに突出した外凸条を周方向に沿って設け、該内管を略円筒状とすることにより内周面を非凹凸形状とし、かつ外周面に外向きに突出した内凸条を周方向に沿って形成し、該内管が該外管内に挿入された状態では、該内管と該外管とを非接着状態とし、かつ該内凸条を該外凸条の内側に入り込ませ、さらに該内凸条の先端と該外凸条との間に隙間を設けて該内凸条の先端と該外凸条との間に変形許容間隙を設定し、該内管が湾曲した場合に該変形許容間隙が該内凸条の変形を許容することを特徴とする排水用可撓管である。   In order to solve the above problems, the present invention is a drainage flexible tube comprising a flexible outer tube and a flexible inner tube inserted into the outer tube, and the outer tube is corrugated. By forming into a shape, an outer ridge that protrudes outwardly on the tube wall of the outer tube is provided along the circumferential direction, and by making the inner tube substantially cylindrical, the inner peripheral surface has a non-concave shape, And an inner ridge projecting outwardly on the outer peripheral surface is formed along the circumferential direction, and when the inner tube is inserted into the outer tube, the inner tube and the outer tube are brought into a non-adhered state; and The inner ridge enters the inside of the outer ridge, and a gap is provided between the tip of the inner ridge and the outer ridge, between the tip of the inner ridge and the outer ridge. The drainage flexible pipe is characterized in that when the deformation allowable gap is set and the inner pipe is curved, the deformation allowable gap allows the deformation of the inner ridge.

上記発明は、内管と外管とを非接着とし、湾曲時に該内管が該外管に対して移動自在としている。さらに、該外管の外凸条の内側に該内管の内凸条を入り込ませて該内凸条の移動範囲を該外凸条の内側のみに規制し、該内管が該外管に対して過剰に移動することを防止している。また、該内凸条の先端と該外凸条との間に隙間を形成し、該内管が湾曲した際の管壁の変形に伴う内凸条の変形を許容している。
したがって、施工時において上記の排水用可撓管を湾曲させた場合、該内管は該外管内で座屈することなく該外管に沿って好適に湾曲するため、該内管の内面に凹凸は形成されず、排水の流動が阻害されない。
In the above invention, the inner tube and the outer tube are not bonded, and the inner tube is movable with respect to the outer tube during bending. Further, the inner ridge of the inner tube is inserted inside the outer ridge of the outer tube to restrict the movement range of the inner ridge to the inner side of the outer ridge, and the inner tube is connected to the outer tube. On the other hand, excessive movement is prevented. Further, a gap is formed between the tip of the inner ridge and the outer ridge to allow deformation of the inner ridge along with the deformation of the tube wall when the inner tube is curved.
Therefore, when the drainage flexible pipe is bent at the time of construction, the inner pipe is suitably bent along the outer pipe without buckling in the outer pipe. It is not formed and the flow of drainage is not hindered.

さらに、該内凸条の側面と該外凸条との間に隙間を設けて該内凸条の側面と該外凸条との間に変形許容間隙を設定してもよい。   Furthermore, a clearance may be provided between the side surface of the inner ridge and the outer ridge, and a deformation allowable gap may be set between the side surface of the inner ridge and the outer ridge.

このような構成とすると、さらに好適に内凸条の変形を変形許容間隙によって許容できる。   With such a configuration, the deformation of the inner ridge can be more preferably allowed by the deformation allowable gap.

また、該内凸条の先端部には、凹溝が該内管の周方向に沿って形成されていることが望ましい。   Moreover, it is desirable that a concave groove is formed along the circumferential direction of the inner tube at the tip of the inner ridge.

上記構成において、内管の湾曲時において該内凸条に対して管軸方向に沿う圧縮応力が作用した場合、該凹溝の両側部分は該凹溝に向けて互いに近づくように撓むこととなる。すなわち、該凹溝を設けることによって該内凸条の変形部位の逃げ場が形成されることとなり、該内凸条全体の歪みが低減され、該内凸条の変形が内管の座屈を招くことを防止できる。   In the above configuration, when a compressive stress along the tube axis direction acts on the inner ridge when the inner tube is bent, both side portions of the groove are bent toward each other toward the groove. Become. That is, by providing the concave groove, a clearance area for the deformed portion of the inner ridge is formed, distortion of the entire inner ridge is reduced, and deformation of the inner ridge causes buckling of the inner tube. Can be prevented.

また、本発明は、上記の排水用可撓管の両端部に、それぞれ接続部品を接続した接続部品接続構造であって、該排水用可撓管の両端部に、該外管の管端と該内管の管端とを重ね合わせた重合部をそれぞれ設け、該接続部品の可撓管側端部には挟着部を設け、該接続部品の該挟着部で該排水用可撓管の該重合部を挟着することにより該排水用可撓管の両端部に、それぞれ接続部品を接続することを特徴とする接続部品接続構造である。   The present invention also provides a connection part connection structure in which connection parts are connected to both ends of the drainage flexible pipe, respectively, and the pipe ends of the outer pipe are connected to both ends of the drainage flexible pipe. Superposed portions that overlap the pipe ends of the inner pipes are provided, a pinching part is provided at the flexible pipe side end of the connecting part, and the flexible pipe for drainage is provided at the pinching part of the connecting part. In this connection part connecting structure, the connecting parts are respectively connected to both ends of the flexible pipe for drainage by sandwiching the overlapping part.

上記構成においては、簡易構造で該排水用可撓管の両端部に接続部品をそれぞれ接続することが可能となる。   In the above configuration, it is possible to connect the connection parts to both ends of the flexible pipe for drainage with a simple structure.

また、上記の接続部品接続構造は、該排水用可撓管の該内管を弾性材料で構成し、該内管を、該内管の両端方向に引っ張られた状態で保持したものが望ましい。   In addition, it is desirable that the connection part connection structure described above is configured such that the inner pipe of the drainage flexible pipe is made of an elastic material, and the inner pipe is held in a state of being pulled toward both ends of the inner pipe.

上記発明において、施工時に内管が湾曲して該内管の所定部位に管軸方向に沿う圧縮応力が作用した場合、あらかじめ該内管が両端方向に引っ張られた状態で保持されていると該所定部位の圧縮応力が低減または相殺され、該内管の歪みが緩和されるため、該内管の座屈が生じにくい。   In the above invention, when the inner tube is bent at the time of construction and compressive stress along the tube axis direction acts on a predetermined portion of the inner tube, the inner tube is held in advance in a state of being pulled in both directions. Since the compressive stress at the predetermined portion is reduced or offset and the distortion of the inner tube is relieved, the inner tube is unlikely to buckle.

本発明の排水用可撓管は、湾曲させても内管が座屈しないため排水の流動が阻害されない。また、本発明の接続部品接続構造は、簡易な構造で該排水用可撓管に接続部品を接続することができる。   Even if the flexible pipe for drainage of the present invention is bent, the inner pipe does not buckle, so that the flow of drainage is not hindered. Moreover, the connection component connection structure of this invention can connect a connection component to this flexible pipe for drainage with a simple structure.

排水用可撓管の使用態様を示す説明図Explanatory drawing which shows the usage condition of the flexible pipe for drainage 排水用可撓管の縦断面図Longitudinal section of flexible pipe for drainage 湾曲させた排水用可撓管の縦断面図Longitudinal cross section of curved flexible pipe for drainage a)は図3におけるα部の拡大図、b)はβ部の拡大図a) is an enlarged view of the α portion in FIG. 3, and b) is an enlarged view of the β portion. 他の形状の内凸条を示す拡大断面図Expanded cross-sectional view showing other shapes of inner ridges

本発明の実施例を添付図面に従って説明する。
図1に示すように、本発明の排水用可撓管1は、例えば建物の基礎(図示省略)内に貫通状に埋設された屈曲鞘管20内に挿着されて使用される。このような使用状態において、該排水用可撓管1の上流端部及び下流端部には、図2に示すような接続部品11,11(受口部品あるいは差口部品)が接続され、さらに公知のナット部材21によって該排水用可撓管1及び該屈曲鞘管20が建物の外側へ突出しないように設定されている。
Embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, the flexible pipe 1 for drainage of the present invention is used by being inserted into, for example, a bent sheath pipe 20 embedded in a base (not shown) of a building in a penetrating manner. In such a state of use, connecting parts 11 and 11 (receiving part parts or connecting part parts) as shown in FIG. 2 are connected to the upstream end part and the downstream end part of the flexible pipe 1 for drainage. The drainage flexible pipe 1 and the bent sheath pipe 20 are set so as not to protrude outside the building by a known nut member 21.

図2に示すように、該排水用可撓管1は、例えば硬質塩化ビニル材のような可撓性の外管2と、SBR等のゴム材(弾性材料)からなる可撓性の内管3とで構成されている。   As shown in FIG. 2, the flexible pipe 1 for drainage includes a flexible outer pipe 2 such as a hard vinyl chloride material and a flexible inner pipe made of a rubber material (elastic material) such as SBR. 3.

該外管2は、可撓性を付与すべくコルゲート形状の成形体とされ、該外管2の管壁には、外向きに突出しかつ周方向に沿う外凸条2Aが管軸方向に沿って断続的に複数設けられている。該外管2を構成する成形体は、例えばブロー成形、射出成形、あるいは公知のコルゲーターを用いたコルゲート押出成形によって製造される。   The outer tube 2 is formed in a corrugated shape so as to impart flexibility, and an outer protruding line 2A that protrudes outward and extends in the circumferential direction is formed along the tube axis direction on the tube wall of the outer tube 2. A plurality of them are provided intermittently. The molded body constituting the outer tube 2 is manufactured by, for example, blow molding, injection molding, or corrugated extrusion using a known corrugator.

一方、該外管2内に挿入される内管3は、外管2とは別に成形加工された略円筒状の成形体とされ、内周面が非凹凸形状であり、かつ外周面には、外向きに突出しかつ周方向に沿う内凸条3Aが管軸方向に沿って断続的に複数設けられている。
さらに、該内凸条3Aの先端部には、凹溝4が該内管3の周方向に沿って形成されている。本実施例における該凹溝4の溝深さは、図2等に示すように、内管3の外周面を基準とした該内凸条3Aの高さと略同じ寸法に設定されている。
On the other hand, the inner tube 3 inserted into the outer tube 2 is a substantially cylindrical molded body that is molded separately from the outer tube 2, the inner peripheral surface is a non-concave shape, and the outer peripheral surface has A plurality of inner ridges 3A protruding outward and extending in the circumferential direction are provided intermittently along the tube axis direction.
Furthermore, a groove 4 is formed along the circumferential direction of the inner tube 3 at the tip of the inner ridge 3A. As shown in FIG. 2 and the like, the groove depth of the concave groove 4 in the present embodiment is set to be approximately the same as the height of the inner convex strip 3A with respect to the outer peripheral surface of the inner tube 3.

そして、該内管3を該外管2内に挿入した状態においては、該内管3と該外管2とが非接着状態とされて、該排水用可撓管1の湾曲時に該内管3が該外管2に対して移動自在とされている。さらに、図2等に示すように、該内管3に複数設けられた内凸条3Aは、該外管2に複数設けられた該外凸条2Aの内側に入り込んでおり、該内凸条3Aの移動範囲が該外凸条2Aの内側のみに規制されている。   In a state where the inner tube 3 is inserted into the outer tube 2, the inner tube 3 and the outer tube 2 are not bonded, and the inner tube 3 is bent when the drainage flexible tube 1 is bent. 3 is movable with respect to the outer tube 2. Further, as shown in FIG. 2 and the like, a plurality of inner ridges 3A provided on the inner tube 3 penetrate inside the outer ridges 2A provided on the outer tube 2, and the inner ridges 3A. The moving range of 3A is restricted only inside the outer ridge 2A.

さらに図4に示すように、該内凸条3Aの周囲と該外凸条2Aとの間には隙間が設けられており、該隙間が本発明の変形許容間隙Sとされている。具体的に本実施例における変形許容間隙Sは、内凸条3Aの先端と外凸条2Aとの間に設定される第一間隙S1と、内凸条3Aの側面と外凸条2Aとの間に設定される第二間隙S2とで構成されている。   Further, as shown in FIG. 4, a gap is provided between the periphery of the inner ridge 3A and the outer ridge 2A, and this gap is the deformation allowable gap S of the present invention. Specifically, the deformation allowable gap S in the present embodiment is the first gap S1 set between the tip of the inner ridge 3A and the outer ridge 2A, the side surface of the inner ridge 3A, and the outer ridge 2A. The second gap S2 is set between them.

次に、図2に従って、上記排水用可撓管1の両端部に接続部品11,11をそれぞれ接続した接続部品接続構造10を説明する。   Next, the connection component connection structure 10 in which the connection components 11 and 11 are connected to both ends of the drainage flexible tube 1 will be described with reference to FIG.

上記接続部品11は、外筒12と、該外筒12に内嵌固定される内筒13とで構成されている。該外筒12および該内筒13は、硬質塩化ビニル材からなる。
また、該接続部品11における排水用可撓管側の端部には、外筒12の内周面と内筒13の外周面とを溝壁とする溝部が形成されており、該溝部によって本発明の挟着部14が構成されている。
また、該外管2の管端には鍵状に加工された外係合部5が設けられ、該内管3の管端には該外係合部5に係合可能に凹凸加工された内係合部6が設けられている。さらに該内筒13の外周面には、該内係合部6に係合可能に凹凸加工された受口係合部15が設けられている。
The connecting component 11 includes an outer cylinder 12 and an inner cylinder 13 that is fitted and fixed to the outer cylinder 12. The outer cylinder 12 and the inner cylinder 13 are made of a hard vinyl chloride material.
Further, a groove portion is formed at the end portion of the connecting part 11 on the side of the draining flexible tube, with the inner peripheral surface of the outer cylinder 12 and the outer peripheral surface of the inner cylinder 13 as groove walls. The clamping part 14 of the invention is configured.
Further, the outer end of the outer tube 2 is provided with a key-shaped outer engaging portion 5, and the inner end of the inner tube 3 is processed to be concavo-convex so as to be engageable with the outer engaging portion 5. An inner engagement portion 6 is provided. Further, the outer peripheral surface of the inner cylinder 13 is provided with a receptacle engaging portion 15 that is concavo-convex processed so as to be engageable with the inner engaging portion 6.

そして、排水用可撓管1の端部においては、外係合部5と内係合部6とを係合させて該外管2の管端と該内管3の管端とを重ね合わせた重合部7が設定されている。   Then, at the end of the drainage flexible tube 1, the outer engagement portion 5 and the inner engagement portion 6 are engaged to overlap the tube end of the outer tube 2 and the tube end of the inner tube 3. The overlapping portion 7 is set.

上記構成において、排水用可撓管1に接続部品11を接続するには、該重合部7を溝形状の該挟着部14内に圧入して内係合部6と受口係合部15とを係合させ、該挟着部14で該重合部7を挟着すると共に、該外管2に挿入された状態で該内管3が両端方向に引っ張られた状態で保持されるように設定する。
このような接続構造10においては、挟着部14に重合部7が挟着し、かつ外係合部5、内係合部6、及び受口係合部15が互いに係合しているため、該排水用可撓管1から該接続部品11が脱落してしまうことがない。
In the above configuration, in order to connect the connecting part 11 to the drainage flexible tube 1, the overlapping portion 7 is press-fitted into the sandwiched portion 14 having a groove shape, and the inner engaging portion 6 and the receiving engagement portion 15. So that the overlapping portion 7 is sandwiched by the sandwiching portion 14 and the inner tube 3 is held in a state of being pulled in both directions while being inserted into the outer tube 2. Set.
In such a connection structure 10, the overlapping portion 7 is sandwiched between the sandwiching portions 14, and the outer engaging portion 5, the inner engaging portion 6, and the receiving port engaging portion 15 are engaged with each other. The connecting component 11 is not dropped from the drainage flexible tube 1.

これまでに述べた構成において、排水用可撓管1が湾曲していない状態では、内管3の内凸条3Aの周囲と外管2の外凸条2Aとは非接触状態にある。
そして、図3に示すように該排水用可撓管1が湾曲すると、内管3と外管2とが非接着であるため該内管3が該外管2内で適宜移動しながら湾曲する。このため該内管3は、歪んで座屈してしまう、ということがない。
さらに該排水用可撓管1における圧縮される部位(図4a参照)および引っ張られる部位(図4b参照)において、該内管3の管壁の変形と共に内凸条3Aが外凸条2A内でかかる湾曲に応じて変形する。特に、図4aに示すように、該内凸条3Aが管軸方向に沿って圧縮される部位では、該内凸条3Aの凹溝4の両側の山部23,23が該凹溝4に向けて互いに近づくように撓む。このため、該内管3は、内凸条3Aが形成された部位で歪んで座屈してしまう、ということがない。
さらに、該内管3は、外管2内においてあらかじめ両端方向に引っ張られた状態で保持されているため、湾曲時に該内管3の所定部位に管軸方向に沿う圧縮応力が作用しても、該圧縮応力が低減または相殺されて該内管3の歪みが緩和される。
かくして、施工時に該排水用可撓管1が湾曲しても、該内管3の内面には凹凸が形成されないし、さらに該内管3の内周面は全体に非凹凸形状であるため、該内管3内を流れる排水の流動が阻害されない。
In the configuration described so far, in the state where the drainage flexible tube 1 is not curved, the periphery of the inner ridge 3A of the inner tube 3 and the outer ridge 2A of the outer tube 2 are in a non-contact state.
Then, as shown in FIG. 3, when the drainage flexible tube 1 is bent, the inner tube 3 and the outer tube 2 are not bonded, so the inner tube 3 is bent while appropriately moving in the outer tube 2. . Therefore, the inner tube 3 is not distorted and buckled.
Further, in the compressed portion (see FIG. 4a) and the pulled portion (see FIG. 4b) of the flexible pipe 1 for drainage, the inner ridge 3A is deformed in the outer ridge 2A along with the deformation of the tube wall of the inner tube 3. It deforms according to the curvature. In particular, as shown in FIG. 4a, in the portion where the inner ridge 3A is compressed along the tube axis direction, the ridges 23, 23 on both sides of the groove 4 of the inner ridge 3A are formed in the groove 4. It bends so that it may mutually approach. For this reason, the inner tube 3 is not distorted and buckled at the portion where the inner ridge 3A is formed.
Further, since the inner tube 3 is held in the outer tube 2 in a state of being pulled in both directions in advance, even if a compressive stress along the tube axis direction acts on a predetermined portion of the inner tube 3 during bending. The compressive stress is reduced or offset, and the distortion of the inner tube 3 is relaxed.
Thus, even when the drainage flexible tube 1 is curved during construction, the inner surface of the inner tube 3 is not uneven, and the inner peripheral surface of the inner tube 3 is entirely non-irregular, The flow of drainage flowing through the inner pipe 3 is not hindered.

なお、本発明は、上記実施例に限定されることはなく、本発明の主旨を逸脱しない範囲で適宜設計変更が可能である。
例えば、図5に示すように、内管3の内凸条3Aには凹溝4が形成されていなくてもよく、適宜所要の寸法形状に設定できる。
また、本発明の排水用可撓管1は、該内凸条3Aの先端と該外凸条2Aとの間に少なくとも隙間が設けられて変形許容間隙Sが形成されていればよく、内凸条3Aの変形が適正に許容されている限り、例えば該内凸条3Aの側面と外凸条2Aの内面とが全体的にまたは部分的に接触するものであってもよい。
また、外管2はポリエチレン(PE)など他の樹脂材料で構成してもよい。
また、内管3は弾性材料であればよく、エラストマーや他のゴム材料で構成してもよい。
また、該接続部品11の挟着部14において、接着剤を介して該重合部7を接着するようにしてもよい。
また、該接続部品11の外筒12及び内筒13は、上記のように別体で構成してもよいし、インサート成形等によって一体で構成してもよい。
The present invention is not limited to the above-described embodiments, and appropriate design changes can be made without departing from the gist of the present invention.
For example, as shown in FIG. 5, the groove 4 may not be formed in the inner protrusion 3 </ b> A of the inner tube 3, and can be set to a required dimensional shape as appropriate.
Further, the drainage flexible tube 1 of the present invention only needs to be provided with at least a gap between the tip of the inner ridge 3A and the outer ridge 2A to form a deformation allowable gap S. As long as the deformation of the strip 3A is appropriately allowed, for example, the side surface of the inner convex strip 3A and the inner surface of the outer convex strip 2A may be in contact with each other in whole or in part.
Moreover, you may comprise the outer tube | pipe 2 with other resin materials, such as polyethylene (PE).
The inner tube 3 may be made of an elastic material and may be made of an elastomer or other rubber material.
Moreover, you may make it adhere | attach this superposition | polymerization part 7 in the clamping part 14 of this connection component 11 via an adhesive agent.
Moreover, the outer cylinder 12 and the inner cylinder 13 of the connection component 11 may be configured separately as described above, or may be configured integrally by insert molding or the like.

1 排水用可撓管
2 外管
2A 外凸条
3 内管
3A,3B 内凸条
4 凹溝
7 重合部
10 接続部品接続構造
11 接続部品
14 挟着部
S 変形許容間隙
DESCRIPTION OF SYMBOLS 1 Flexible pipe for drainage 2 Outer tube 2A Outer protruding line 3 Inner tube 3A, 3B Inner protruding line 4 Groove 7 Superposition part 10 Connection part connection structure 11 Connection part 14 Clamping part S Deformation tolerance

Claims (5)

可撓性の外管と、該外管内に挿入されている可撓性の内管とからなる排水用可撓管であって、
該外管をコルゲート形状に成形することにより、該外管の管壁に外向きに突出した外凸条を周方向に沿って設け、
該内管を略円筒状とすることにより内周面を非凹凸形状とし、かつ外周面に外向きに突出した内凸条を周方向に沿って形成し、
該内管が該外管内に挿入された状態では、該内管と該外管とを非接着状態とし、かつ該内凸条を該外凸条の内側に入り込ませ、さらに該内凸条の先端と該外凸条との間に隙間を設けて該内凸条の先端と該外凸条との間に変形許容間隙を設定し、該内管が湾曲した場合に該変形許容間隙が該内凸条の変形を許容することを特徴とする排水用可撓管。
A drainage flexible tube comprising a flexible outer tube and a flexible inner tube inserted into the outer tube,
By forming the outer tube into a corrugated shape, an outer ridge projecting outward is provided along the circumferential direction on the tube wall of the outer tube,
By forming the inner tube into a substantially cylindrical shape, the inner peripheral surface is formed into a non-concave shape, and an inner ridge that protrudes outward on the outer peripheral surface is formed along the circumferential direction.
In a state where the inner tube is inserted into the outer tube, the inner tube and the outer tube are brought into a non-adhered state, and the inner ridge is allowed to enter inside the outer ridge, and further, A gap is provided between the tip and the outer ridge to set a deformation allowable gap between the tip of the inner ridge and the outer ridge. When the inner tube is curved, the deformation allowable gap is A flexible pipe for drainage which allows deformation of the inner ridge.
該内凸条の側面と該外凸条との間に隙間を設けて該内凸条の側面と該外凸条との間に変形許容間隙を設定した請求項1記載の排水用可撓管。   The flexible pipe for drainage according to claim 1, wherein a gap is provided between a side surface of the inner ridge and the outer ridge so as to set a deformation allowable gap between the side surface of the inner ridge and the outer ridge. . 該内凸条の先端部には、凹溝が該内管の周方向に沿って形成されている請求項1又は請求項2記載の排水用可撓管。   The flexible pipe for drainage according to claim 1 or 2, wherein a concave groove is formed at a distal end portion of the inner ridge along the circumferential direction of the inner pipe. 請求項1乃至請求項3のいずれか1項に記載の排水用可撓管の両端部に、それぞれ接続部品を接続した接続部品接続構造であって、
該排水用可撓管の両端部に、該外管の管端と該内管の管端とを重ね合わせた重合部をそれぞれ設け、
該接続部品の可撓管側端部には挟着部を設け、
該接続部品の該挟着部で該排水用可撓管の該重合部を挟着することにより該排水用可撓管の両端部に、それぞれ接続部品を接続することを特徴とする接続部品接続構造。
A connecting part connecting structure in which connecting parts are connected to both ends of the flexible pipe for drainage according to any one of claims 1 to 3,
Provided on both ends of the drainage flexible tube are overlapping portions where the tube end of the outer tube and the tube end of the inner tube are overlapped,
A clamping part is provided at the flexible tube side end of the connection part,
Connection component connection characterized in that connection components are respectively connected to both ends of the drainage flexible tube by clamping the overlapping portion of the drainage flexible tube with the clamping portion of the connection component Construction.
該排水用可撓管の該内管を弾性材料で構成し、
該内管を、該内管の両端方向に引っ張られた状態で保持した請求項4記載の接続部品接続構造。
The inner pipe of the flexible pipe for drainage is made of an elastic material,
The connection part connection structure according to claim 4, wherein the inner pipe is held in a state of being pulled toward both ends of the inner pipe.
JP2010019917A 2010-02-01 2010-02-01 Flexible drainage pipe and connection part connection structure Expired - Fee Related JP5547979B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020036751A (en) * 2018-09-04 2020-03-12 株式会社Lixil Washstand piping and washstand installation method using the same
KR20200002644U (en) * 2020-11-17 2020-12-07 명은전기 주식회사 Terminal Bushing for Explosion Proof Flexible Tube

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844582U (en) * 1981-09-18 1983-03-25 金尾 史朗 Spiral-wound corrugated tube with synthetic resin inner membrane body
JPS60104882A (en) * 1983-11-14 1985-06-10 川崎重工業株式会社 Corrosion-resistant double pipe structure
JPS60136688A (en) * 1983-12-22 1985-07-20 鳥居化成株式会社 Spiral corrugated double pipe and manufacture thereof
JPS60136689A (en) * 1983-12-24 1985-07-20 鳥居化成株式会社 Multiple pipe and manufacture thereof
JPH0448998B2 (en) * 1988-08-18 1992-08-10 Toyo Densen Kk
JPH06307583A (en) * 1993-04-23 1994-11-01 Toyoda Gosei Co Ltd Hose
JPH0734286U (en) * 1993-12-01 1995-06-23 古河電気工業株式会社 Corrugated composite pipe
JP2002106759A (en) * 2000-09-28 2002-04-10 Piolax Inc Corrugated tube
JP2002254536A (en) * 2001-03-02 2002-09-11 Totaku Industries Inc Pipeline regeneration pipe
JP2005291254A (en) * 2004-03-31 2005-10-20 Sekisui Chem Co Ltd Synthetic resin two-layered corrugated pipe, and repair method of pipe for inserting the same corrugated pipe into overaged existing piping
JP2007147029A (en) * 2005-11-30 2007-06-14 Maruichi Kk Flexible pipe

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844582U (en) * 1981-09-18 1983-03-25 金尾 史朗 Spiral-wound corrugated tube with synthetic resin inner membrane body
JPS60104882A (en) * 1983-11-14 1985-06-10 川崎重工業株式会社 Corrosion-resistant double pipe structure
JPS60136688A (en) * 1983-12-22 1985-07-20 鳥居化成株式会社 Spiral corrugated double pipe and manufacture thereof
JPS60136689A (en) * 1983-12-24 1985-07-20 鳥居化成株式会社 Multiple pipe and manufacture thereof
JPH0448998B2 (en) * 1988-08-18 1992-08-10 Toyo Densen Kk
JPH06307583A (en) * 1993-04-23 1994-11-01 Toyoda Gosei Co Ltd Hose
JPH0734286U (en) * 1993-12-01 1995-06-23 古河電気工業株式会社 Corrugated composite pipe
JP2002106759A (en) * 2000-09-28 2002-04-10 Piolax Inc Corrugated tube
JP2002254536A (en) * 2001-03-02 2002-09-11 Totaku Industries Inc Pipeline regeneration pipe
JP2005291254A (en) * 2004-03-31 2005-10-20 Sekisui Chem Co Ltd Synthetic resin two-layered corrugated pipe, and repair method of pipe for inserting the same corrugated pipe into overaged existing piping
JP2007147029A (en) * 2005-11-30 2007-06-14 Maruichi Kk Flexible pipe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020036751A (en) * 2018-09-04 2020-03-12 株式会社Lixil Washstand piping and washstand installation method using the same
JP7202816B2 (en) 2018-09-04 2023-01-12 株式会社Lixil Piping for bathroom vanity and construction method for bathroom vanity using the same
KR20200002644U (en) * 2020-11-17 2020-12-07 명은전기 주식회사 Terminal Bushing for Explosion Proof Flexible Tube
KR200493604Y1 (en) * 2020-11-17 2021-04-30 명은전기 주식회사 Terminal Bushing for Explosion Proof Flexible Tube

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