JP4755581B2 - Ready-made pipe for pipe formation - Google Patents

Ready-made pipe for pipe formation Download PDF

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JP4755581B2
JP4755581B2 JP2006354212A JP2006354212A JP4755581B2 JP 4755581 B2 JP4755581 B2 JP 4755581B2 JP 2006354212 A JP2006354212 A JP 2006354212A JP 2006354212 A JP2006354212 A JP 2006354212A JP 4755581 B2 JP4755581 B2 JP 4755581B2
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pipe
ready
forming
receiving
formation
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JP2008164060A (en
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伸吉 大岡
満良 張
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吉佳株式会社
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Description

本発明は、下水管や取付け管など既設管路内に挿入されライニングを形成して既設管路を更生するための、或いは新たな下水管や取付け管などの管路を形成するための管路形成用既製管材に係る。   The present invention is a pipe for inserting a line such as a sewage pipe or an attachment pipe to form a lining to rehabilitate the existing pipe line, or for forming a new pipe such as a sewage pipe or an attachment pipe. Related to ready-made tubing for forming.
例えば下水管や取付け管に言及すると、日本の下水道普及率は平均67%であり、都市部では、ほぼ100%に近い普及率である。このような現状において、下水管の新設事業は一部地方を除いて殆ど無くなり、既設の老朽化下水管の維持管理が重要なものとなっている。既設下水管の総延長は約36万Kmであり、そのうち耐用年数が8年を越えた下水管は7000Km以上となっている。また、今後年間数千Kmずつ増加する見込みである。   For example, referring to sewage pipes and attachment pipes, the average sewerage penetration rate in Japan is 67%, and in urban areas, it is close to 100%. Under such circumstances, the construction of new sewerage pipes has almost disappeared except in some areas, and the maintenance of existing sewage pipes has become important. The total length of existing sewage pipes is about 360,000 km, of which sewage pipes with a useful life of more than 8 years are over 7000 km. In the future, it is expected to increase by several thousand kilometers per year.
一般に、下水管などの地中に埋設されている既設管路については、設置からの年数の経過による様々な変形、例えば、ズレによる段差の発生や径の変化などが生じることは不可避である。また、変形が生じなくても老朽化に伴って交換が必要になる。このような様々な事情から、下水管などの老朽化既設管路は、埋設後数十年後には、新管と交換するか或いは何等かの更生や補修が必要となる。   In general, for existing pipelines buried in the ground such as sewage pipes, it is inevitable that various deformations due to the passage of years since installation, for example, generation of steps due to deviation or change in diameter, etc., occur. In addition, even if no deformation occurs, replacement is necessary with aging. Under such various circumstances, aging existing pipelines such as sewage pipes need to be replaced with new pipes or some kind of rehabilitation or repair after several decades after burial.
現在、既設管路の交換あるいは更生もしくは補修技術としては、地上からの作業により地面を開削し、既設管路を地上から掘り出して新管を入れる方法、非開削で特殊機械を用いて既設管路を管内部から拡径、破壊し、出来た空間に新管を入れる方法、非開削で既設管路の内部から管内面を補修する方法、例えば軟性の管路形成用既製管材を既設管路内に挿入もしくは引き込み、既設管路内面に密着させ、これを硬化させる補修方法などが知られている。   Currently, existing pipes can be replaced or rehabilitated or repaired by excavating the ground by working from the ground, excavating the existing pipes from the ground and inserting new pipes, or using existing machinery without using special machines. The method of expanding the diameter of the pipe from the inside of the pipe, destroying it, inserting a new pipe into the created space, repairing the inner surface of the pipe from the inside of the existing pipe line without cutting, for example, the existing pipe material for forming a soft pipe line in the existing pipe line There is known a repairing method for inserting or pulling into the inner surface, bringing it into close contact with the inner surface of an existing pipe line, and hardening it.
例えば、特許文献1には、非開削で既設管路内面に更生用ライニングを設ける技術として、屈曲した既設管路の内周面に硬化性樹脂管をしわの発生なしに全周に亘って密着させつつ導入する技術が開示されており、例えば、既設管路内に硬化性樹脂管を一方の端部から内周面が外周面になるように、反転させながら挿入し、その後に硬化させる技術が開示されている。硬化前の硬化性樹脂管の伸縮性により既設管路の内周面への密着性を確保しているものである。挿入後は、熱や光によって硬化性樹脂管が硬化される。この様な最終的な製造工程が施工現場、すなわち、既設管路内で行なわれる場合、現場における条件や管理状況によって、完成品の品質にバラツキが生じることがある。   For example, in Patent Document 1, as a technique for providing a lining for rehabilitation on the inner surface of an existing pipe without cutting, a curable resin pipe is closely attached to the inner peripheral surface of the existing pipe without bending. For example, a technique in which a curable resin pipe is inserted into an existing pipe line while being inverted so that the inner peripheral surface becomes the outer peripheral surface, and then cured. Is disclosed. The adhesiveness to the inner peripheral surface of the existing pipeline is ensured by the stretchability of the curable resin tube before curing. After insertion, the curable resin tube is cured by heat or light. When such a final manufacturing process is performed at a construction site, that is, in an existing pipe line, the quality of the finished product may vary depending on the conditions and the management situation at the site.
そのため、特許文献2に記載のように、予め工場にて製造したいわゆる既製管材を既設管路内に挿入する技術も知られており、当該文献には、予め製造したリング状既製管材を老朽化した既設管路へ順次押込んで、既設管路を更生する技術が開示されている。   Therefore, as described in Patent Document 2, a technique for inserting a so-called ready-made pipe material manufactured in advance in a factory into an existing pipe line is also known. In this reference, a ring-shaped ready-made pipe material manufactured in advance is aged. A technology for rehabilitating an existing pipeline by sequentially pushing into the existing pipeline is disclosed.
特開平6−246830号公報JP-A-6-246830 特開2003−301690号公報JP 2003-301690 A
特許文献2に記載されている技術によれば、既設管路への更生用ライニングの形成が施工現場における管理に依存せず、品質の均一化を図ることができる。しかしながら、上記リング状既製管材は既設管路内において端部を接して連接されるようになされているため、例えば地震などにより地盤変動が生じた場合、既設管路の破損に伴って更生用ライニングを形成している既製管材も連接部分で分断されやすく、分断された場合には、最早、本来の管路の機能を維持することはできない。   According to the technique described in Patent Document 2, the formation of the rehabilitation lining on the existing pipe line does not depend on the management at the construction site, and the quality can be made uniform. However, since the above-mentioned ring-shaped prefabricated pipes are connected in contact with the ends in the existing pipe line, for example, when ground changes occur due to an earthquake or the like, the lining for rehabilitation is accompanied by damage to the existing pipe line. The ready-made pipe material forming the tube is easily divided at the connecting portion, and when it is divided, the original function of the pipe line cannot be maintained any longer.
本発明は、上記事情に鑑みてなされたものであり、その目的は、施工現場における管理に依存せず、均一化された品質の更生用ライニングをもたらし、或いは新規の管路をもたらし、また地震などに起因する地盤変動により更生用ライニングを施した管路若しくは新規管路が撓められ、これを伸長するような力が働いた場合に、これに十分に対応し、管路の機能を維持することのできる管路形成用既製管材を提供することである。   The present invention has been made in view of the above circumstances, and its purpose is not dependent on management at the construction site, and it provides a uniform retreading lining, or a new pipeline, and an earthquake. When a pipeline with a lining for rehabilitation or a new pipeline is deflected due to ground fluctuation caused by such factors as a force that extends it is applied, this will be adequately handled and the function of the pipeline will be maintained It is providing the ready-made pipe | tube material for pipe line formation which can do.
上記目的を達成する請求項1に記載の発明は、筒状に形成され一端が挿入端部とされ、他端が受入れ端部とされ、上記挿入端部を上記受入れ端部に挿入して連結される管路形成用既製管材において、上記挿入端部の端縁部近傍の外周面に環状突起が形成されており、更に、上記外周面には、上記環状突起に対して上記端縁部の反対側に、多数の線条突起が該環状突起に隣接して設けてあり、上記環状突起及び上記線条突起は、上記挿入端部が上記受入れ端部に挿入された際、それら突起の頂部が上記受入れ端部の内周面に圧接される高さ寸法を有していることを特徴とする。   The invention according to claim 1, which achieves the above object, is formed in a cylindrical shape, one end is an insertion end, the other end is a reception end, and the insertion end is inserted into the reception end and connected. In the pipe-forming ready-made pipe member, an annular protrusion is formed on the outer peripheral surface in the vicinity of the end edge portion of the insertion end portion, and further, the end edge portion is formed on the outer peripheral surface with respect to the annular protrusion. On the opposite side, a large number of linear protrusions are provided adjacent to the annular protrusion, and the annular protrusion and the linear protrusion are arranged at the top of the protrusion when the insertion end is inserted into the receiving end. Has a height dimension pressed against the inner peripheral surface of the receiving end.
上記環状突起は、上記挿入端部に一体的に形成されていてもよく、或いはOリングを上記挿入端部へ嵌装することによって設けてもよい。   The annular protrusion may be formed integrally with the insertion end, or may be provided by fitting an O-ring to the insertion end.
請求項1に記載の管路形成用既製管材によれば、接続して既設管路更生用ライニング或いは新規管路として設置された後の状態において、環状突起の頂部と受入れ端部の内周面との間の相互間の押圧を伴う密着が接続部における水密作用若しくは水封作用をもたらして漏水を防止し、また環状突起及び線条突起の頂部と受入れ端部の内周面との間に生じる摩擦抵抗が、接続された既製管材相互の接続部での離脱の動きに対抗する。   According to the ready-made pipe material for forming a pipe line according to claim 1, the inner peripheral surface of the top part of the annular projection and the receiving end part in a state after being connected and installed as an existing pipe line lining or a new pipe line The close contact with the pressure between each other brings about water tightness or water sealing at the connecting portion to prevent water leakage, and between the top of the annular protrusion and the line protrusion and the inner peripheral surface of the receiving end. The resulting frictional resistance counters the separation movement at the connection between the connected prefabricated pipes.
地震などにより、上記更生用ライニングを施した管路或いは新規管路周辺の地盤が変動し、それによってこれら管路が撓められ、それらを伸長させる力が働いたとき、管路形成用既製管材の各接続部で、先ず環状突起及び線条突起の頂部と受入れ端部の内周面との間に生じている比較的大きな摩擦抵抗が、受入れ端部と挿入端部との間の離脱方向への移動を阻止するように作用する。この摩擦抵抗を凌駕する伸長力が管路に更に働いた場合には、受入れ端部と挿入端部との間に相対的な滑りが生じ、このような滑りが複数の接続部で生じることにより、更生用ライニング若しくは新規管路は、地盤変動に追随して、受入れ端部と挿入端部との間の止水性を維持した状態で伸長し、従って、例えばマンホールとマンホールとの間で有効な流路を保った状態で管路が維持される。   When the pipe line with the lining for rehabilitation or the ground around the new pipe line fluctuates due to an earthquake, etc., and these pipe lines are bent and the force to stretch them works, ready-made pipe material for pipe formation In each of the connecting portions, first, a relatively large frictional resistance generated between the tops of the annular protrusions and the line protrusions and the inner peripheral surface of the receiving end is caused by the separation direction between the receiving end and the insertion end. Acts to prevent movement to If an extension force surpassing this frictional resistance is further applied to the pipe, relative slip occurs between the receiving end and the insertion end, and such slip occurs at a plurality of connecting portions. Rehabilitation linings or new pipes follow the ground movement and extend with the water stoppage between the receiving end and the insertion end and thus effective, for example, between manholes and manholes. The pipeline is maintained with the flow path maintained.
換言すれば、本発明による管路形成用既製管材は、接続部にOリングのみが用いられているような従来の管路形成用既製管材と比較して、接続部での離脱を阻止する摩擦力が大幅に増大する。また、上記地盤変動による伸長力を一箇所で集中的に受けて大きな分断が生じたり、或いはマンホールからの離脱が生じたりしやすい従来の比較的高強度で剛体構造の管路に比較して、地盤変動に追随する伸びが随所の接続部で生じ、比較的大幅な融通性をもって管路形成用既製管材間の離脱が防止され、従って管路が有効に維持され、また管路とマンホールとの接続状態も維持される。   In other words, the pipe-forming ready-made pipe material according to the present invention has a friction that prevents separation at the connecting portion as compared with a conventional pipe-forming ready-made pipe material in which only an O-ring is used for the connecting portion. The power is greatly increased. Also, compared to conventional relatively high-strength and rigid-structure pipes that are subject to large force in one place and are subject to large severance or detachment from manholes, Elongation that follows ground deformation occurs at various connections, and with relatively great flexibility, separation between prefabricated pipe forming pipes is prevented, so that the pipes are effectively maintained, and between pipes and manholes. The connection state is also maintained.
請求項2に係る管路形成用既製管材は、上記線条突起が上記管路形成用既製管材の軸線と平行な方向へ延伸していることを特徴とする。   The ready-made pipe for pipe formation according to claim 2 is characterized in that the line protrusion extends in a direction parallel to the axis of the ready-made pipe for pipe formation.
この構成によれば、挿入装置を用いて管路形成用既製管材の挿入端部を他の管路形成用既製管材の受入れ端部へ押込む際、線条突起が押込み方向へ延在していることにより、既製管材同士の接続が挿入装置による直線的押動操作によって比較的簡単に行える。   According to this configuration, when the insertion end of the pipe forming ready-made pipe member is pushed into the receiving end of another pipe forming ready-made pipe member using the insertion device, the linear protrusion extends in the pushing direction. As a result, it is possible to relatively easily connect the ready-made pipe members by a linear pushing operation by the insertion device.
請求項3に係る管路形成用既製管材は、上記線条突起が、上記管路形成用既製管材の軸線に対して斜行していることを特徴とする。   The pipe-forming ready-made pipe material according to claim 3 is characterized in that the linear protrusion is skewed with respect to the axis line of the pipe-forming ready-made pipe material.
この構成によれば、上記線条突起が斜行していることにより、接続状態にある2つの管路形成用既製管材において、一方の既製管材の挿入端部が、他方の既製管材の受入れ端部から軸線方向へ直線的に抜け出す作用に対抗する摩擦抵抗が増大し、地盤変動に対する管路維持能力が更に向上する。このように線条突起が斜行している場合、上記挿入装置による管路形成用既製管材の接続作業は、押込む方の既製管材を線条突起の傾斜方向へ回転させながら行えば、押込は比較的小さな押込み力によって容易に行うことができる。   According to this configuration, the two line-forming ready-made pipe members in the connected state have the insertion end portion of one ready-made pipe member being the receiving end of the other ready-made pipe member because the linear protrusion is skewed. The frictional resistance against the action of linearly pulling out from the section in the axial direction increases, and the pipeline maintenance ability against ground fluctuation is further improved. When the line projections are skewed as described above, the connection work of the pipe forming ready-made pipe material by the insertion device is performed by rotating the ready-made pipe material to be pushed in the direction of inclination of the line projection. Can be easily performed with a relatively small pushing force.
請求項4に係る管路形成用既製管材は、上記多数の線条突起が上記外周面に部分的に設けてあることを特徴とする。   The ready-made pipe for pipe formation according to claim 4 is characterized in that the plurality of linear protrusions are partially provided on the outer peripheral surface.
この構成によれば、一つ一つの線条突起の頂部の変形を大きくすることができ、それによって線条突起と受入れ端部の内周面との間に所期の摩擦抵抗をもたらすことができると共に、この摩擦抵抗を環状突起の頂部と上記受入れ端部の内周面との間の接触圧と調和させて、環状突起による十分な止水作用と線条突起による接続部の離脱阻止との両方の作用を効果的にもたらすことができ、更に、上記線条突起と受入れ端部の内周面との間の接触抵抗を管路形成用既製管材の管径に応じた適当なものに調整することができる。管路形成用既製管材をプラスチックで形成する場合、線条突起の形成範囲が少なければ、それだけ成形型の製造コストを低減することができる。   According to this configuration, it is possible to increase the deformation of the top portion of each linear protrusion, thereby providing the desired frictional resistance between the linear protrusion and the inner peripheral surface of the receiving end. In addition, the frictional resistance is matched with the contact pressure between the top of the annular protrusion and the inner peripheral surface of the receiving end, and sufficient water-stopping action by the annular protrusion and prevention of disconnection of the connecting part by the line protrusion. In addition, the contact resistance between the linear protrusion and the inner peripheral surface of the receiving end can be made appropriate according to the pipe diameter of the pipe forming ready-made pipe material. Can be adjusted. When the pipe-forming ready-made pipe material is formed of plastic, the manufacturing cost of the mold can be reduced as much as the formation range of the line projections is small.
請求項5に係る管路形成用既製管材は、当該既製管材が、プラスチック製、特にポリプロピレン(PP)又はポリエチレン(PE)製であることを特徴とする。   The ready-made pipe material for pipe line formation according to claim 5 is characterized in that the ready-made pipe material is made of plastic, in particular, polypropylene (PP) or polyethylene (PE).
この構成によれば、高強度の管路形成用既製管材を慣用のプラスチック成形技術を用いて効率よく製作することができる。   According to this configuration, a ready-made pipe material for forming a high-strength pipe line can be efficiently manufactured using a conventional plastic molding technique.
以上説明したように、本発明の管路形成用既製管材によれば、施工現場における管理に依存しない均一化された更生用ライニングを既設管路内に形成し既設管路を地盤変動に対応することのできるものに更新することができ、或いは地盤変動に対応し得る新規管路をもたらすことができる。   As described above, according to the ready-made pipe material for pipe formation according to the present invention, a uniform lining for rehabilitation that does not depend on management at the construction site is formed in the existing pipe line, and the existing pipe line is adapted to ground fluctuation. It can be updated to something that can do it, or a new pipeline that can cope with ground changes can be brought about.
以下、図面に基づいて本発明の実施の形態について説明する。
(第1の実施の形態)
図1〜図6は本発明の第1の実施形態による管路形成用既製管材を示しており、図1は同管路形成用既製管材の挿入端部を設けてある部分の斜視図、図2は同管路形成用既製管材の受入れ端部を設けてある部分の斜視図、図3は図1に示す管路形成用既製管材の挿入端部(図3(a))及び受入れ端部(図3(b))の正面図であって、受入れ端部を中央縦断面にて示す図、図4は図3(a)中のIV−IV線に沿う断面図、図5は挿入端部を受入れ端部へ差し込んで2つの管路形成用既製管材を接続した状態を示す正面図であって、一部を中央縦断面にて示す図、図6は図5中のA部の拡大尺中央縦断面図である。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIGS. 1-6 has shown the pipe-forming ready-made pipe material by the 1st Embodiment of this invention, FIG. 1 is a perspective view of the part in which the insertion end part of the pipe-forming ready-made pipe material is provided, figure 2 is a perspective view of a portion provided with a receiving end portion of a ready-made pipe material for forming the conduit, and FIG. 3 is an insertion end portion (FIG. 3A) and a receiving end portion of the ready-made pipe material for forming a conduit shown in FIG. FIG. 3 is a front view of FIG. 3 (b), showing the receiving end in a central longitudinal section, FIG. 4 is a sectional view taken along line IV-IV in FIG. 3 (a), and FIG. It is a front view which shows the state which inserted the part into the acceptance edge part, and connected two ready-made pipe materials for pipe formation, Comprising: The figure which shows a part in a center longitudinal cross-section, FIG. 6 is an expansion of the A section in FIG. FIG.
プラスチック製、例えばポリプロピレン(PP)又はポリエチレン(PE)製の管路形成用既製管材1は、一方の端部に図1及び図3(a)に示すような挿入端部2が設けられ、他方の端部に図2及び図3(b)に示すような受入れ端部3が設けられている。管路形成用既製管材1を接続して形成される更生用ライニング或いは新規管路の両端部に用いられる管路形成用既製管材は、一方の端部のみに挿入端部2又は受入れ端部3の何れかを設け、他方の端部には何も設けないものであってもよい。   The pipe-forming ready-made pipe material 1 made of plastic, for example, polypropylene (PP) or polyethylene (PE) is provided with an insertion end 2 as shown in FIG. 1 and FIG. The receiving end 3 as shown in FIG. 2 and FIG. The lining for rehabilitation formed by connecting the prefabricated pipe material 1 for pipe formation or the prefabricated pipe material for pipe formation used for both ends of the new pipe line has an insertion end 2 or a receiving end 3 only at one end. Any of the above may be provided, and nothing may be provided at the other end.
図1及び図3(a)に示すように、管路形成用既製管材本体10の外径に比較して僅かに小径の外径を有している挿入端部2は、管路形成用既製管材1の一方の端縁部23の近傍に設けられた環状突起21と、この環状突起21に関して端縁部23とは反対側に環状突起21に隣接して設けられた線条突起形成部20と、環状突起21に隣接して端縁部23側に設けられた挿入誘導部22とを有している。   As shown in FIG. 1 and FIG. 3A, the insertion end 2 having an outer diameter slightly smaller than the outer diameter of the pipe-forming ready-made pipe material body 10 is made of pipe-forming ready-made. An annular protrusion 21 provided in the vicinity of one end edge 23 of the tube 1, and a line protrusion forming part 20 provided adjacent to the annular protrusion 21 on the opposite side of the end edge 23 with respect to the annular protrusion 21. And an insertion guiding portion 22 provided on the end edge portion 23 side adjacent to the annular protrusion 21.
一方、図2及び図3(b)に示すように、受入れ端部3には、上記挿入端部2が挿入される受孔30が設けられている。受孔30の奥行は、実質的に上記挿入端部2の軸線方向の長さに相当する。   On the other hand, as shown in FIGS. 2 and 3B, the receiving end 3 is provided with a receiving hole 30 into which the insertion end 2 is inserted. The depth of the receiving hole 30 substantially corresponds to the length of the insertion end 2 in the axial direction.
上記挿入端部2の線条突起形成部20に並列的に設けてある各線条突起20aは、その頂部へ向けて先細りになった三角形(図4参照)、或いは図示されてはいないが、台形又は円弧形の横断面を有しており、挿入端部2の軸線と平行な方向へ延伸している。   Each of the linear protrusions 20a provided in parallel to the linear protrusion forming part 20 of the insertion end 2 is a triangular shape (see FIG. 4) that is tapered toward the top, or a trapezoid, although not shown. Alternatively, it has an arc-shaped cross section and extends in a direction parallel to the axis of the insertion end 2.
本実施の形態では、線条突起20aは、図4に示すように、挿入端部2の外周面を周方向に4つに均等に分けた範囲のうちの2つの向かい合う範囲に集約的に形成されている。   In the present embodiment, as shown in FIG. 4, the linear protrusions 20 a are collectively formed in two opposing ranges in a range in which the outer peripheral surface of the insertion end 2 is equally divided into four in the circumferential direction. Has been.
線条突起20aを設けてない部分20bの外径は受孔30の内径より小さくなされているが、これら外径と内径との差は線条突起20aの高さh(図4参照)の2倍より小さい。したがって、挿入端部2を受入れ端部3へ挿入した際には、線条突起20aの頂部は受入れ端部3の内周面30aに圧接され、幾分潰れた状態に弾性変形し、内周面30aとの間に大きな摩擦接触をもたらす。   The outer diameter of the portion 20b where the linear protrusion 20a is not provided is smaller than the inner diameter of the receiving hole 30, but the difference between the outer diameter and the inner diameter is 2 of the height h of the linear protrusion 20a (see FIG. 4). Less than double. Therefore, when the insertion end 2 is inserted into the receiving end 3, the top of the linear protrusion 20a is pressed against the inner peripheral surface 30a of the receiving end 3, and is elastically deformed to a somewhat collapsed state. Large frictional contact is provided between the surface 30a.
図3(a)に示すように、上記環状突起21は上記線条突起20aとほぼ同じ高さに突出しており、従って挿入端部2を受孔30へ挿入した際、環状突起21の頂部と受孔30の内周面30aとは全周に亘って互いに押し合った状態で水密的もしくは水封的に接触する。図示されてはいないが、挿入端部2の根元部の環状溝24に第2のOリングを嵌め込み、挿入端部2が受入れ端部3へ挿入されたとき、第2のOリングを受入れ端部3の内周面30aに圧接するようにして、管路形成用既製管材間の接続部に第2の封止部を設けるようにしてもよい。   As shown in FIG. 3A, the annular protrusion 21 protrudes at substantially the same height as the linear protrusion 20a. Therefore, when the insertion end 2 is inserted into the receiving hole 30, the top of the annular protrusion 21 is The inner circumferential surface 30a of the receiving hole 30 is in watertight or watertight contact with each other while being pressed against each other over the entire circumference. Although not shown, when the second O-ring is fitted into the annular groove 24 at the base of the insertion end 2 and the insertion end 2 is inserted into the receiving end 3, the second O-ring is received at the receiving end. You may make it provide a 2nd sealing part in the connection part between the existing pipe materials for pipe formation so that it may press-contact to the internal peripheral surface 30a of the part 3. FIG.
上記挿入誘導部22の外径は、上記受入れ端部30の内径よりも若干小さくなされている。したがって、挿入誘導部22は受入れ端部3の受孔30内へ比較的容易に誘導挿入可能である。   The outer diameter of the insertion guiding portion 22 is slightly smaller than the inner diameter of the receiving end portion 30. Therefore, the insertion guiding portion 22 can be guided and inserted relatively easily into the receiving hole 30 of the receiving end 3.
各部の寸法は、例えば、上記管路形成用既製管材1の本体部10の外径をDとした場合、本体部10の内径は0.89D、挿入端部2の線条突起20aを設けてない部分の外径は0.96D、挿入端部2の長さ(受孔30の奥行)は0.5D、線条突起20a及び環状突起21の高さhは0.01D、受孔30の直径は0.97Dとなされる。しかしながら、容易に理解され得るように、これら寸法は必要に応じて適宜変更可能である。これら寸法については、下記第2の実施の形態の場合についても同様である。   The dimensions of each part are, for example, when the outer diameter of the main body 10 of the pipe-forming ready-made pipe material 1 is D, the inner diameter of the main body 10 is 0.89D, and the linear protrusion 20a of the insertion end 2 is provided. The outer diameter of the non-existing portion is 0.96D, the length of the insertion end 2 (depth of the receiving hole 30) is 0.5D, the height h of the linear protrusion 20a and the annular protrusion 21 is 0.01D, The diameter is 0.97D. However, as can be easily understood, these dimensions can be appropriately changed as necessary. These dimensions are the same in the case of the second embodiment described below.
(第2の実施の形態)
図7は本発明の第2の実施の形態による管路形成用既製管材の挿入端部2の斜視図である。第1の実施の形態と相違しているのは挿入端部2に設けられている線条突起20aの構成である。受入れ端部3の構成は第1の実施の形態のものと同様である。
(Second Embodiment)
FIG. 7 is a perspective view of the insertion end portion 2 of the ready-made pipe material for forming a pipe line according to the second embodiment of the present invention. What is different from the first embodiment is the configuration of the linear protrusion 20a provided on the insertion end 2. The configuration of the receiving end 3 is the same as that of the first embodiment.
第2の実施の形態による線条突起20aは管路形成用既製管材1の軸線に対して斜行している。線条突起20aが設けてある範囲は、第1の実施の形態の場合と同様に、挿入端部2の外周面の約半分の範囲であって、2つの対向する範囲に集約されている。管路形成用既製管材1の軸線に対する斜行角度は任意に決めることができる。   The linear protrusion 20a according to the second embodiment is skewed with respect to the axis of the pipe-forming ready-made pipe 1. The range in which the linear protrusions 20a are provided is a range of about half of the outer peripheral surface of the insertion end 2 as in the case of the first embodiment, and is concentrated in two opposing ranges. The skew angle with respect to the axis of the pipe forming ready-made pipe 1 can be arbitrarily determined.
第2の実施の形態によれば、管路形成用既製管材1を連結して形成された更生用ライニング又は新規管路は、地盤変動などにより更生用ライニング管又は新規管路に軸線方向への引張力が作用したとき、線条突起20aが斜行していることにより、上記引張力に抵抗して、接続部で受入れ端部3と挿入端部2との離脱移動に対抗する摩擦力が増大する。   According to the second embodiment, the lining for rehabilitation or new pipe formed by connecting the ready-made pipe material 1 for pipe formation is moved to the lining pipe for rehabilitation or new pipe in the axial direction due to ground fluctuation or the like. When the tensile force is applied, the linear protrusion 20a is skewed, so that a frictional force that resists the tensile force and opposes the separation movement between the receiving end 3 and the insertion end 2 at the connecting portion. Increase.
次に、図8〜図13を参照して、上記管路形成用既製管材を使用した既設管路の更生を、下水道に関して行う場合を例に、以下に詳細に説明する。   Next, with reference to FIG. 8 to FIG. 13, an example in which rehabilitation of an existing pipe line using the pipe-forming ready-made pipe material is performed with respect to a sewer will be described in detail below.
以下の例はマンホール100からマンホール102まで延在する下水道本管5の更生を行う場合についてのものであるが、本発明による管路形成用既製管材は、図8に示す桝6から下水道本管5へ廃水を流す取付管7の更生又は補修を行う場合にも適用できる。更に、図示されていないが、地上からの作業により地面を開削し、既設管路を地上から掘り出して新規管路を入れる場合、或いは非開削で特殊機械を用いて既設管路を管内部から拡径、破壊し、出来た空間に新規管路を敷設する場合にも適用可能である。   The following example is for the case of rehabilitation of the sewer main 5 extending from the manhole 100 to the manhole 102. The ready-made pipe for pipe formation according to the present invention is from the sewer 6 shown in FIG. The present invention can also be applied to the case where the attachment pipe 7 that causes waste water to flow through 5 is repaired or repaired. Furthermore, although not shown, when the ground is excavated by work from the ground and the existing pipeline is dug from the ground and a new pipeline is inserted, or the existing pipeline is expanded from the inside of the pipe using a special machine without excavation. It can also be applied to the case where a new pipeline is laid in a space that has been broken and destroyed.
図9に示したように、挿入作業の起点側であるマンホール100内には、管路形成用既製管材1の挿入装置8が設置されている。挿入装置8は、マンホール100内に設置される外枠部分を有し、主たる構成要素は、図示していない昇降手段により昇降可能に構成されたアーム80、このアーム80に設けられ、その径を拡張、縮小可能な拡径部81、更に、それらと対向する側に設けられた動き規制手段82である。   As shown in FIG. 9, an insertion device 8 for the pipe forming ready-made pipe material 1 is installed in the manhole 100 which is the starting side of the insertion work. The insertion device 8 has an outer frame portion installed in the manhole 100, and main components are provided on an arm 80 configured to be lifted and lowered by lifting means (not shown), and the arm 80 has a diameter thereof. A diameter-enlarging portion 81 that can be expanded and contracted, and a movement restricting means 82 provided on the side facing them.
アーム80は上下移動(図上矢印200)が可能で基端部を図上矢印300方向に回動可能に形成され、更に、後述するようにその長さを伸縮駆動させることができる構成を有している。拡径部81は摩擦係数の大きい弾性部材等(図示せず)で被覆されており、縮径状態で管路形成用既製管材1内に挿入され、拡径されることによって管路形成用既製管材1を内側から押圧してアーム80に固定保持することができる。そして、必要に応じてアーム80を回転させることで、固定保持した管路形成用既製管材1をその軸線に関して回転させることができるものである。   The arm 80 can move up and down (arrow 200 in the figure), the base end portion is formed to be rotatable in the direction of the arrow 300 in the figure, and the length can be extended and retracted as will be described later. is doing. The diameter-expanded portion 81 is covered with an elastic member (not shown) having a large friction coefficient, and is inserted into the pipe-forming ready-made pipe material 1 in a reduced diameter state, and the pipe diameter is ready-made by expanding the diameter. The tube material 1 can be pressed and held on the arm 80 from the inside. Then, by rotating the arm 80 as necessary, the pipe-forming ready-made pipe material 1 that is fixedly held can be rotated with respect to its axis.
一方、動き規制手段82は、更生対象である下水道本管5の挿入動作起端側の開口部近傍に設置され、対向面の相互の間隔を広/狭調整可能に構成された拘束手段82aを有している。この拘束手段82aは、例えば、略リング状に形成し、その内径を調整可能とする構成や、複数の拘束部をセクター状に設け、それぞれを中心方向に近づけ、或いは離反させる構成とすることで構成することが可能である。なお、拘束手段82aの内側面には摩擦係数の大きな弾性部材が設けられている(図示せず)。この拘束手段82aを互いに近づける方向に移動させることによって管路形成用既製管材1を外方から把持し、その動きを規制することができるものである。   On the other hand, the movement restricting means 82 is installed in the vicinity of the opening on the insertion operation starting side of the sewer main pipe 5 to be rehabilitated, and includes a restricting means 82a configured so that the mutual interval between the opposing surfaces can be adjusted wide / narrow. Have. For example, the restraining means 82a is formed in a substantially ring shape so that the inner diameter thereof can be adjusted, or a plurality of restraining portions are provided in a sector shape so that each of them is close to or away from the central direction. It is possible to configure. An elastic member having a large friction coefficient is provided on the inner surface of the restraining means 82a (not shown). By moving the restraining means 82a in a direction to approach each other, the pipe forming ready-made pipe material 1 can be gripped from the outside and its movement can be restricted.
なお、図9では、最初(先頭)の管路形成用既製管材11が既に設置されている状態が示されており、この先頭の管路形成用既製管材11の設置は、上記アーム80を用いることで簡単に行うことができる。そして、図示のように先頭の管路形成用既製管材11の進行方向の先端縁部には、予め導入されている外筒材9を進行動作の際に傷付けることのないように、角のない表面形状を有し表面の滑り状態の良い材質で形成されたカバー部材25が被せられている。 In FIG. 9, the first and state conduit forming prefabricated tube member 1 1 (top) is already installed is shown installed in the head of the conduit forming prefabricated tube member 1 1, the arm 80 This can be done easily by using. Then, the leading edge of the advancing direction of the pipe forming prefabricated tube member 1 1 of the head as shown, so as not to damage the outer tubular member 9 which is previously introduced during the progression operation, the corner A cover member 25 made of a material having a non-surface shape and having a good surface sliding state is covered.
図10は、2個目の管路形成用既製管材12が、未だ傾斜状態にあるアーム80の拡径部81によって内側から押圧された状態で保持された状態が示されている。この状態からアーム80は下降動作を行う。そして、所定位置まで下降した状態が図11に示されている。また、この図11に示された様に、保持された管路形成用既製管材12の水平状態を保つためのサポート手段83を設け、拡径部81による保持状態をサポートすることも好適である。サポート手段83は図示しない昇降手段によって互いに近接離反動作を行い、拡径部81にて保持された管路形成用既製管材(12)を外方から支え、或いは解除する様にしている。なお、このサポート手段83は必須の構成ではなく、アーム80の拡径部81による保持位置をバランスの保てる位置とすることにより拡径部81のみによる保持でも作業を行うことは可能である。 FIG. 10 shows a state in which the second pipe forming preform 12 for holding a pipe line is held in a state of being pressed from the inside by the enlarged diameter portion 81 of the arm 80 that is still in an inclined state. From this state, the arm 80 moves downward. FIG. 11 shows a state where it has been lowered to a predetermined position. Further, as shown in FIG. 11, the support means 83 for maintaining a horizontal state of the retained pipe forming prefabricated pipe member 1 2 is provided, to support the holding state by the enlarged diameter portion 81 is also suitable is there. The support means 83 is moved close to and away from each other by an elevating means (not shown) so as to support or release the pipe forming preformed pipe material (1 2 ) held by the enlarged diameter portion 81 from the outside. Note that the support means 83 is not an essential configuration, and it is possible to perform the operation even by holding only the enlarged diameter portion 81 by setting the holding position of the enlarged diameter portion 81 of the arm 80 to a position where balance can be maintained.
次に、図12は、上述の管路形成用既製管材12の保持状態でアーム80を伸長動作させることにより、管路形成用既製管材12を管路形成用既製管材11へ接続させた状態を示している。この接続動作を行う場合、管路形成用既製管材11は、上記動き規制手段82の拘束手段82aによって外方から把持され、移動しない状態が確保されている。 Next, FIG. 12, by extending operating arm 80 in a holding state of the above-mentioned conduit forming prefabricated tube member 1 2, to connect the conduit forming prefabricated pipe member 1 2 to pipe forming prefabricated tube member 1 1 Shows the state. When performing this connecting operation, the pipe forming prefabricated tube member 1 1 is gripped from outside by arresting means 82a in the motion regulating means 82, when no movement is ensured.
管路形成用既製管材12を管路形成用既製管材11へ接続させる作業、すなわち挿入端部2を受入れ端部3へ挿入する作業は、既製管材11の挿入誘導部22を既製管材12の受孔30へ挿入することから始められる。上述のように、挿入誘導部22の直径は受孔30の径よりも幾分小さくなされているので、この受入れ端部への挿入誘導部22の挿入は困難なく容易に達成される。 The operation of connecting the prefabricated pipe material 1 2 for pipe formation to the prefabricated pipe material 1 1 for pipe formation, that is, the operation of inserting the insertion end 2 into the receiving end 3 is the insertion guide 22 of the prefabricated pipe 11 1 It is started by inserting into 1 second receiving hole 30. As described above, since the diameter of the insertion guide portion 22 is somewhat smaller than the diameter of the receiving hole 30, the insertion guide portion 22 can be easily inserted into the receiving end without difficulty.
このような端緒の案内的挿入が行なわれた後、アーム80による圧入が行なわれる。この場合、上述のように、環状突起21の直径及び線条突起形成部20の直径(線条突起20aの頂部までを半径とする円の直径)が受孔30の直径よりも若干大きくなされているので、環状突起21及び線条突起20aの頂部は受孔30の内周面30aに圧接された状態になる。   After such a leading guide insertion, press-fitting by the arm 80 is performed. In this case, as described above, the diameter of the annular protrusion 21 and the diameter of the linear protrusion forming portion 20 (the diameter of a circle having a radius up to the top of the linear protrusion 20a) are slightly larger than the diameter of the receiving hole 30. Therefore, the top portions of the annular protrusion 21 and the linear protrusion 20 a are in a state of being in pressure contact with the inner peripheral surface 30 a of the receiving hole 30.
上記第2実施の形態のように、線条突起20aが管路形成用既製管材1の軸線に対して斜行している場合には、挿入端部2を受部3へ挿入する際に、アーム80は線条突起20aの斜行に沿った方向に回動しつつ駆進運動せしめられる。これによって、線条突起20aが斜行している場合にも、押込みの際の摩擦抵抗が比較的小さくなり、従って小さな押込み力で管路形成用既製管材の接続を行うことができる。   When the line projection 20a is skewed with respect to the axis of the pipe forming ready-made pipe material 1 as in the second embodiment, when inserting the insertion end 2 into the receiving portion 3, The arm 80 is driven to move forward while rotating in the direction along the skew of the linear protrusion 20a. As a result, even when the linear protrusion 20a is skewed, the frictional resistance at the time of pushing becomes relatively small, so that the pipe-forming ready-made pipe material can be connected with a small pushing force.
図5及び図6に示すように、挿入端部2の端縁部23が受入れ端部3の最奥部30bに当接し、受入れ端部3の端縁部31が挿入端部2の基端にある肩部11に当接したとき、押込み動作は完了する。押込みが完了した状況で、線条突起20a及び環状突起21の頂部は受孔30の内周面30aに圧接された状態になっており、これら頂部と内周面30aとの間には大きな摩擦力が生じ、それによって線条突起20aは環状突起21と協働して、受入れ端部3から挿入端部2が抜け出るのを阻止し、また環状突起21は接続部での漏水を防止する。従って、2つの管路形成用既製管材11および12の接続は強固に行われ且つ止水性を保った状態になる。 As shown in FIGS. 5 and 6, the end edge 23 of the insertion end 2 abuts the innermost portion 30 b of the receiving end 3, and the end 31 of the receiving end 3 is the base end of the insertion end 2. The push-in operation is completed when it abuts against the shoulder 11 located at the bottom. When the pushing is completed, the tops of the line protrusions 20a and the annular protrusions 21 are in pressure contact with the inner peripheral surface 30a of the receiving hole 30, and a large friction is generated between these tops and the inner peripheral surface 30a. A force is generated, whereby the line protrusion 20a cooperates with the annular protrusion 21 to prevent the insertion end 2 from coming out of the receiving end 3, and the annular protrusion 21 prevents water leakage at the connection. Accordingly, the two pipe forming ready-made pipe materials 1 1 and 1 2 are firmly connected to each other and the water-stopping property is maintained.
図13は、接続が終了した後、拘束手段82aによる把持状態を解除して、アーム80を伸長動作させ、接続された管路形成用既製管材11、12を下水道本管5内に押し入れる途中の状態が示されている。以上の図10から図13までの動作を繰り返し行うことによって、下水道本管5の全長に亘って管路形成用既製管材11〜1nを挿入し、更生用ライニングを形成することができる。この挿入動作の過程では、先頭の管路形成用既製管材11の端縁部に設けられたカバー部材25の作用により、予め導入されている外筒材9をスムーズに押し広げて、円滑な挿入動作が進められていく。 FIG. 13 shows that after the connection is completed, the gripping state by the restraining means 82 a is released, the arm 80 is extended, and the connected pipe forming preforms 1 1 and 1 2 are pushed into the sewer main pipe 5. The state during the insertion is shown. By repeatedly performing the operations from FIG. 10 to FIG. 13 described above, the pipe-forming ready-made pipe materials 1 1 to 1 n can be inserted over the entire length of the sewer main pipe 5 to form a rehabilitation lining. In the course of the insertion operation, by the action of the cover member 25 provided on the edge portion of the top of the conduit forming prefabricated tube member 1 1, and push the outer tubular member 9 which is previously introduced smoothly, smooth The insertion operation proceeds.
図14及び図15は、更生用ライニング形成工程が終わり、外筒材9とその内側の更生用ライニング(管路形成用既製管材11〜1nの結合体)が下水道本管5全域に設置された状態となった後、シーリング材の供給・硬化工程を行う準備動作の説明図である。すなわち、外筒材9と更生用ライニングの外側面との間の隙間に経時硬化型のシーリング材を供給し硬化させるための準備動作である。 14 and 15, the rehabilitation lining forming process is completed, and the outer tubular material 9 and the rehabilitation lining inside (the combined pipe forming 11 1 to 1 n ) are installed throughout the sewer main 5. It is explanatory drawing of the preparatory operation | movement which performs the supply and hardening process of a sealing material after it will be in the state performed. That is, this is a preparatory operation for supplying a time-curing sealant to the gap between the outer cylinder member 9 and the outer side surface of the lining for rehabilitation and curing it.
図14に示したように、マンホール100側の下水道本管5の開口部では、下水道本管5の端部から突出した外筒材9の部分は、同じく下水道本管5の端部からやや突出した状態に調整されている管路形成用既製管材1nの端部外周面に絞られて密着されている。具体的には、締め付けバンド110によって管路形成用既製管材1nの外周面に全周で押し付けられている。重要なことは、シーリング材注入用の開口だけが確保されていることであり、チューブ状の注入口体111が管路形成用既製管材1nの外周面と外筒材9との間に設置されて構成されている。 As shown in FIG. 14, in the opening portion of the sewer main 5 on the manhole 100 side, the portion of the outer cylinder member 9 that protrudes from the end of the sewer main 5 protrudes slightly from the end of the sewer main 5. The pipe-forming ready-made pipe material 1 n that has been adjusted to the above-described state is squeezed into close contact with the outer peripheral surface of the end. Specifically, the fastening band 110 is pressed against the outer peripheral surface of the pipe-forming ready-made pipe material 1 n over the entire circumference. What is important is that only the opening for injecting the sealing material is secured, and the tube-shaped injection port body 111 is installed between the outer peripheral surface of the pipe-forming ready-made pipe material 1 n and the outer cylinder material 9. Has been configured.
図15は、挿入動作の終端側であるマンホール102の下水道本管5の開口部分の状態を示している。図示のように、マンホール100側と同様に下水道本管5の端部から突出した外筒材9の部分は、下水道本管5の端部からやや突出した管路形成用既製管材11の端部外周面に締め付けバンド112によって絞られて密着されている。マンホール100側の構成と異なる点は、シーリング材の注入用の開口ではなく、シーリング材の注入の際の空気抜き用の開口が確保されていることである。具体的にはチューブ状の空気抜き体113が管路形成用既製管材11の外周面と外筒材9との間に設置されている。 FIG. 15 shows a state of the opening portion of the sewer main 5 of the manhole 102 which is the terminal side of the insertion operation. As shown, the portion of the outer tubular member 9 protruding like the manhole 100 side from the end portion of the sewer main pipe 5 is slightly protruding conduit forming the end of the ready-made pipe member 1 1 from the end portion of the sewer main pipe 5 It is squeezed and adhered to the outer peripheral surface of the part by a fastening band 112. The difference from the configuration on the manhole 100 side is that not an opening for injecting the sealing material but an opening for venting air when injecting the sealing material is secured. Specifically it is placed between tubular vent member 113 between the outer peripheral surface and the outer tubular member 9 of the conduit forming prefabricated tube member 1 1.
この構成により、経時硬化型のシーリング材を注入口体111の開口から注入し、充満状態とした後、更に一定の圧力を加えることにより、的確に更生用ライニングと下水道本管5の内周面との間を埋め、且つ管路形成用既製管材相互の結合部の隙間もシーリング材で塞ぐことができる。これにより、耐震性のある更生用ライニングの安定的設置が図られ、更に、下水道本管5の外側からの水の侵入も的確に防止される。   With this configuration, a time-hardening type sealing material is injected from the opening of the injection port body 111, and after being filled, by further applying a certain pressure, the rehabilitation lining and the inner peripheral surface of the sewer main 5 In addition, the gap between the joint portions of the pipe forming ready-made pipe members can be closed with the sealing material. Thereby, stable installation of the lining for rehabilitation which has earthquake resistance is achieved, and also the penetration | invasion of the water from the outer side of the sewer main pipe 5 is prevented exactly.
上述の更生用ライニングの形成作業工程は、管路形成用既製管材の受入れ端部側を前方側にして接続する場合を例示したが、挿入端部を前方側にして接続を行ってもよいことは明らかである。また、新規管路の敷設も、開削作業や既設管路の拡径破壊作業以外は上記と同様の作業工程で行うことができる。   The above-described rehabilitation lining forming operation process has illustrated the case where connection is made with the receiving end side of the pipe-forming ready-made pipe being the front side, but the connection may be made with the insertion end side being the front side. Is clear. In addition, the laying of the new pipeline can be performed in the same operation process as described above except for the excavation operation and the diameter expansion destruction operation of the existing pipeline.
本発明の第1の実施の形態による管路形成用既製管材の挿入端部を設けてある部分の斜視図である。It is a perspective view of the part in which the insertion end part of the ready-made pipe material for pipe line formation by the 1st Embodiment of this invention is provided. 本発明による管路形成用既製管材の受入れ端部を設けてある部分の斜視図である。It is a perspective view of the part in which the acceptance end part of the ready-made pipe material for pipe line formation by this invention is provided. 図1及び図2に示す管路形成用既製管材の正面図であって、(a)は挿入端部を設けてある部分、(b)は受入れ端部を設けてある部分を示している。It is a front view of the ready-made pipe material for pipe line formation shown in FIG.1 and FIG.2, (a) has shown the part in which the insertion end part is provided, (b) has shown the part in which the receiving end part is provided. 図3中のIV−IV線に沿う断面図である。It is sectional drawing which follows the IV-IV line in FIG. 2つの管路形成用既製管材を接続した状態を示す正面図である。It is a front view which shows the state which connected two ready-made pipe materials for pipe line formation. 図5中のA部の拡大尺図である。It is an enlarged scale figure of the A section in FIG. 本発明の第2の実施の形態による管路形成用既製管材の挿入端部を設けてある部分の斜視図である。It is a perspective view of the part in which the insertion end part of the ready-made pipe material for pipe line formation by the 2nd Embodiment of this invention is provided. 本発明の管路形成用既製管材を用いて補修される下水道本管及び周辺設備の概略説明図である。It is a schematic explanatory drawing of the sewer mains and peripheral equipment which are repaired using the ready-made pipe for pipe formation of this invention. 下水道本管への管路形成用既製管材挿入の初期工程の説明図である。It is explanatory drawing of the initial stage process of the ready-made pipe material insertion for pipe line formation to a sewer main. 管路形成用既製管材挿入の次工程の説明図である。It is explanatory drawing of the next process of ready-made pipe material insertion for pipe formation. 管路形成用既製管材挿入の更なる工程の説明図である。It is explanatory drawing of the further process of the ready-made pipe material insertion for pipe formation. 管路形成用既製管材挿入の更なる工程の説明図である。It is explanatory drawing of the further process of the ready-made pipe material insertion for pipe formation. 管路形成用既製管材挿入の更なる工程の説明図である。It is explanatory drawing of the further process of the ready-made pipe material insertion for pipe formation. 管路形成用既製管材挿入工程終了後に更生用ライニングの外周側に充填材を供給する際の起点側での準備作業を説明する図である。It is a figure explaining the preparatory work in the starting side at the time of supplying a filler to the outer peripheral side of the lining for rehabilitation after completion | finish of the ready-made pipe material for pipe line formation. 管路形成用既製管材挿入工程終了後に更生用ライニングの外周側に充填材を供給する際の終点側での準備作業を説明する図である。It is a figure explaining the preparatory work in the end point side at the time of supplying a filler to the outer peripheral side of the lining for rehabilitation after completion | finish of the ready-made pipe material for pipe line formation.
符号の説明Explanation of symbols
1 管路形成用既製管材
10 管路形成用既製管材本体
2 挿入端部
20 線条突起形成部
20a 線条突起
20b 線条突起(20a)を設けてない部分
21 環状突起
22 挿入誘導部
23 挿入端部(2)の端縁部
3 受入れ端部
30 受孔
30a 内周面
30b 受入れ端部(3)の最奥部
31 受入れ端部(3)の端縁部
DESCRIPTION OF SYMBOLS 1 Pre-made pipe material for pipe formation 10 Pre-made pipe main body for pipe formation 2 Insertion end part 20 Line | wire protrusion formation part 20a Line | wire protrusion 20b The part which does not provide the line | wire protrusion (20a) 21 Annular protrusion 22 Insertion guide part 23 Insertion Edge part 3 of end part (2) Receiving end part 30 Receiving hole 30a Inner peripheral surface 30b Deepest part of receiving end part (3) 31 Edge part of receiving end part (3)

Claims (5)

  1. 筒状に形成され一端が挿入端部とされ、他端が受入れ端部とされ、前記挿入端部を前記受入れ端部に挿入して連結される管路形成用既製管材において、
    前記挿入端部の端縁部近傍の外周面に環状突起が形成されており、
    更に、前記外周面には、前記環状突起に対して前記端縁部の反対側に、多数の線条突起が該環状突起に隣接して設けてあり、
    前記環状突起及び線条突起は、前記挿入端部が前記受入れ端部に挿入された際、それら突起の頂部が前記受入れ端部の内周面に圧接される高さ寸法を有している、
    ことを特徴とする管路形成用既製管材。
    In a tube-formed ready-made pipe material that is formed into a cylindrical shape, one end is an insertion end, the other end is a receiving end, and the insertion end is inserted into and connected to the receiving end.
    An annular projection is formed on the outer peripheral surface in the vicinity of the edge of the insertion end,
    Furthermore, on the outer peripheral surface, on the opposite side of the edge portion with respect to the annular protrusion, a number of linear protrusions are provided adjacent to the annular protrusion,
    The annular protrusion and the line protrusion have a height dimension such that when the insertion end is inserted into the receiving end, the top of the protrusion is pressed against the inner peripheral surface of the receiving end.
    A prefabricated pipe material for forming a pipeline.
  2. 前記線条突起は、前記管路形成用既製管材の軸線と平行な方向へ延伸していることを特徴とする請求項1に記載の管路形成用既製管材。   The prefabricated pipe for pipe formation according to claim 1, wherein the line protrusion extends in a direction parallel to an axis of the prefabricated pipe for pipe formation.
  3. 前記線条突起は、前記管路形成用既製管材の軸線に対して斜行していることを特徴とする請求項1に記載の管路形成用既製管材。   2. The ready-made pipe forming pipe according to claim 1, wherein the line protrusion is inclined with respect to an axis of the ready-made pipe forming pipe. 3.
  4. 前記多数の線条突起は前記外周面に部分的に設けてあることを特徴とする請求項1〜3の何れか1項に記載の管路形成用既製管材。   The ready-made pipe material for pipe formation according to any one of claims 1 to 3, wherein the plurality of linear protrusions are partially provided on the outer peripheral surface.
  5. プラスチック製、特にポリプロピレン(PP)又はポリエチレン(PE)製であることを特徴とする請求項1〜4の何れか1項に記載の管路形成用既製管材。   The ready-made pipe for pipe formation according to any one of claims 1 to 4, wherein the pipe is made of plastic, particularly polypropylene (PP) or polyethylene (PE).
JP2006354212A 2006-12-28 2006-12-28 Ready-made pipe for pipe formation Active JP4755581B2 (en)

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