JP2009014149A - Repairing pipe and pipe repairing method - Google Patents

Repairing pipe and pipe repairing method Download PDF

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JP2009014149A
JP2009014149A JP2007178775A JP2007178775A JP2009014149A JP 2009014149 A JP2009014149 A JP 2009014149A JP 2007178775 A JP2007178775 A JP 2007178775A JP 2007178775 A JP2007178775 A JP 2007178775A JP 2009014149 A JP2009014149 A JP 2009014149A
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pipe
repair
strip
tube
repairing
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Fumito Hinuma
史人 日沼
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S G C GESUIDO CT KK
SGC Gesuido Center KK
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S G C GESUIDO CT KK
SGC Gesuido Center KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a repairing pipe for repairing an existing pipe, and a pipe repairing method, in which a repairing pipe with high pressure resistance and flexibility is used, and a connecting part or opening part thereof can be easily connected to the existing pipe 5. <P>SOLUTION: The repairing pipe having an inner pipe 1 formed of a flexible soft polyvinyl chloride resin material with a flat inner surface and an outer pipe 2 formed of a hard resin material and including a strip member 2a with a corrugated cross section spirally wound on the outer circumference of the inner tube 1 with a part of the corrugation being adhered and fixed to the inner pipe 1 is used. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、下水管等の既設配管を補修するための補修用管およびその配管補修方法であって、高耐圧性の可撓管を用いるものに関する。   The present invention relates to a repair pipe for repairing an existing pipe such as a sewage pipe, and a pipe repair method thereof using a high pressure resistant flexible pipe.

配管用の可撓管として、ポリエチレン製の螺旋状管が公知である。
このようなポリエチレン製の螺旋状可撓管は、下水管その他として利用されている。
なお、可撓管を用いない配管の補修方法として、従来広く行われている補修方法は、フェルトまたはガラス繊維の布材に光硬化性または熱硬化性の樹脂を含浸させたライニング材を配管内に引き込み、それをエアーにより拡開した状態で、内部に光硬化装置または熱硬化装置を導入してライニング材を硬化させ、既設配管とそのライニング材とを一体的に接合していた。このような補修方法は、その作業が複雑であると共に硬化時間を長く要する欠点があった。 As a flexible tube for piping, a helical tube made of polyethylene is known.
Such a polyethylene helical flexible tube is used as a sewer pipe or the like.
In addition, as a method of repairing a pipe that does not use a flexible tube, a repair method that has been widely used in the past is that a lining material in which a felt or glass fiber cloth material is impregnated with a photo-curing or thermosetting resin is used. In the state where it was drawn in and expanded by air, a photocuring device or a heat curing device was introduced inside to cure the lining material, and the existing piping and the lining material were integrally joined. Such a repair method has the disadvantages that the work is complicated and the curing time is long.

特開２００６−６４１７３号公報JP 2006-64173 A 特開平９−１６６２５５号公報JP 9-166255 A 特開平７−３１７９７８号公報JP-A-7-317978

従来のポリエチレン製の可撓管を本管や取付管の補修管として用いる場合、ポリエチレン材が難接着性樹脂材料であるため、その可撓管とマンホールや桝との接合を行うことが難しく、その接続作業が面倒であった。
同様に本管と取付管との接続部を接合しようとするときも、その接合作業が面倒で且つ、接合部の信頼性に欠ける欠点があった。
そこで本発明は、係る課題を解決する高耐圧性で可撓性の高い補修用管およびその配管補修方法を提供することを目的とする。 When using a conventional polyethylene flexible pipe as a repair pipe for a main pipe or a mounting pipe, since the polyethylene material is a hard-to-adhesive resin material, it is difficult to join the flexible pipe with a manhole or heel, The connection work was troublesome.
Similarly, when trying to join the connecting portion between the main pipe and the mounting pipe, there is a drawback that the joining work is troublesome and the reliability of the joining portion is lacking.
Therefore, an object of the present invention is to provide a high-pressure-resistant and highly flexible repair pipe and a pipe repair method for solving the problems.

請求項１に記載の本発明は、内面が平坦な可撓性の軟質塩化ビニール樹脂材よりなる内管(1)と、
硬質の樹脂材よりなり、横断面を波形に形成した細長い帯状材(2a)が、前記内管(1)の外面に螺旋状に懸回されて、その波の一部のみが前記内管(1)に接着固定された外管(2)と、
を具備する補修用管である。 The present invention according to claim 1 includes an inner tube (1) made of a flexible soft vinyl chloride resin material having a flat inner surface,
An elongated strip (2a) made of a hard resin material and having a corrugated cross section is hung spirally around the outer surface of the inner tube (1), and only a part of the wave is the inner tube ( An outer tube (2) adhered and fixed to 1),
It is a repair pipe comprising

請求項２に記載の本発明は、請求項１において、
前記外管(2)は、その帯状材(2a)の幅方向の一方の縁部に波の谷部(2b)が存在し、他方の縁部に波の山部(2c)が存在し、前記螺旋状に懸回されたとき、その螺旋の境はその谷部(2b)内に山部(2c)が被嵌するように構成され、谷部(2b)の外表面のみが前記内管(1) に接着固定されてなる補修用管である。
請求項３に記載の本発明は、請求項１または請求項２において、
前記外管(2)と内管(1)との隙間に、金属線(3)が螺旋状に介装された補修用管である。 The present invention according to claim 2 is the method according to claim 1,
The outer tube (2) has a wave trough (2b) at one edge in the width direction of the strip (2a), and a wave crest (2c) at the other edge, When suspended in the spiral, the boundary of the spiral is configured such that the peak (2c) fits in the valley (2b), and only the outer surface of the valley (2b) is the inner tube. It is a repair pipe that is bonded and fixed to (1).
According to a third aspect of the present invention, in the first or second aspect,
A repair pipe in which a metal wire (3) is spirally interposed in a gap between the outer pipe (2) and the inner pipe (1).

請求項４に記載の本発明は、請求項１〜請求項３のいずれかにおいて、
前記外管(2)を形成する帯状材(2a)は、その波が1サイクルまたは半サイクル形成されたものよりなる補修用管である。
請求項５に記載の本発明は、請求項１〜請求項４のいずれかにおいて、
前記内管(1)は、断面が平坦な帯状材(1a)を螺旋状に形成し、隣接するその螺旋の境界どうしが接合されてなり、前記外管(2)の帯状材(2a)は硬質塩化ビニール材よりなる補修用管である。 A fourth aspect of the present invention provides the method according to any one of the first to third aspects,
The strip-like material (2a) forming the outer pipe (2) is a repair pipe made of a wave formed in one cycle or half cycle.
The present invention according to claim 5 provides the method according to any one of claims 1 to 4,
The inner pipe (1) is formed by forming a strip-shaped material (1a) having a flat cross section into a spiral shape, and the boundary between adjacent spirals is joined, and the strip-shaped material (2a) of the outer tube (2) is This is a repair pipe made of hard vinyl chloride material.

請求項６に記載の本発明は、請求項１〜請求項５のいずれかにおいて、
前記外管(2)の帯状材(2a)がガラス繊維強化プラスチックよりなる補修用管である。 A sixth aspect of the present invention provides the method according to any one of the first to fifth aspects,
The strip (2a) of the outer tube (2) is a repair tube made of glass fiber reinforced plastic.

請求項７に記載の本発明は、請求項１〜請求項５のいずれかの補修用管(4)を、既設配管(5)内挿入し、次いでその補修用管(4)の端部と既設配管(5)の開口端との間を硬化性樹脂剤または接着剤或いは充填剤により接合する配管補修方法である。   According to the present invention of claim 7, the repair pipe (4) according to any one of claims 1 to 5 is inserted into the existing pipe (5), and then the end of the repair pipe (4) This is a pipe repairing method in which the opening end of the existing pipe (5) is joined with a curable resin agent, an adhesive, or a filler.

請求項８に記載の本発明は、請求項７において、
前記既設配管(5)は、一対のマンホール(6)に両端が連結された本管(5a)と、その本管(5a)に一端が連通すると共に、他端が桝(7)に連結された取付管(5b)とであり、
その本管内(5a)に第１の補修用管(4)を挿入して、その両端部を一対のマンホール(6)の本管接続口(6a)の縁部に接合し、次いで、前記取付管(5b)と本管(5a)との接続部で、前記第１の補修用管(4)の内面側より接続用開口(5c)を形成し、
その取付管(5b)内に第２の補修用管(4)を挿入して、その一端開口を桝(7)の開口に接合すると共に、他端開口を前記接続用開口(5c)に接合することとした配管補修方法である。 The present invention described in claim 8 provides the method according to claim 7,
The existing pipe (5) has a main pipe (5a) having both ends connected to a pair of manholes (6), one end communicating with the main pipe (5a), and the other end connected to a flange (7). Mounting pipe (5b),
The first repair pipe (4) is inserted into the main pipe (5a), and both ends thereof are joined to the edge of the main pipe connection port (6a) of the pair of manholes (6), and then the attachment A connection opening (5c) is formed from the inner surface side of the first repair pipe (4) at a connection portion between the pipe (5b) and the main pipe (5a),
The second repair pipe (4) is inserted into the mounting pipe (5b), and one end opening is joined to the opening of the flange (7), and the other end opening is joined to the connection opening (5c). It is a pipe repair method that we decided to do.

本発明の補修用管は、内管１として内面が平坦な可撓性の軟質塩化ビニール樹脂材を用い、その外側に横断面が波形の細長い帯状材2aを螺旋状に懸回し、その波の一部のみを内管１に接着固定して外管２としたので、全体の可撓性が高いと共に、その補修用管の開口端を他の配管部材に接着等により容易に接続でき且つ、耐圧性が高い。即ち、内管１が軟質塩化ビニール樹脂材よりなるため、その内面と他の配管材との間の接着が容易であり、その液密性を永続的に保ちうる。しかも、内管１及び外管２共に可撓性を有し、曲折した既設配管内に容易に挿入でき、既設配管内面を補修することができる。それと共に、可撓性のため地震に耐えうるものとなる。そして、外管が硬質の波形の帯状材2aを内管１の外周に螺旋状に懸回し、両者間が接着固定されたものであるから、耐圧性が高い。
また、内管１は内面が平坦であるため、流路抵抗が小さく堆積物が溜まり難いものとなる。 In the repair pipe of the present invention, a flexible soft vinyl chloride resin material having a flat inner surface is used as the inner pipe 1, and an elongated strip-like material 2a having a corrugated cross section is hung spirally on the outer side. Since only a part is bonded and fixed to the inner tube 1 to form the outer tube 2, the overall flexibility is high, and the opening end of the repair tube can be easily connected to other piping members by bonding, High pressure resistance. That is, since the inner tube 1 is made of a soft vinyl chloride resin material, adhesion between the inner surface and another piping material is easy, and the liquid tightness can be maintained permanently. Moreover, both the inner pipe 1 and the outer pipe 2 are flexible, can be easily inserted into the bent existing pipe, and the existing pipe inner surface can be repaired. At the same time, it can withstand earthquakes due to its flexibility. The outer tube has a hard corrugated belt-like material 2a wound around the outer periphery of the inner tube 1 in a spiral manner, and the two are bonded and fixed.
Further, since the inner surface of the inner tube 1 is flat, the flow resistance is small and deposits are difficult to accumulate.

上記構成において、外管２として横断面波形に形成された帯状材2aが螺旋状に懸回されたとき、その螺旋の境に谷部2bが位置し、その谷部2b内に山部2cが嵌着するように構成することができる（請求項２）。この場合には、帯状材2aを隙間無く螺旋状に懸回でき、耐圧性が高くなると共に、補修用管全体の可撓性を向上できる。
上記構成において、外管２と内管１との隙間に金属線３を螺旋状に介装することができる（請求項３）。この場合には、さらに耐圧性の高い補修用管を提供できる。 In the above configuration, when the belt-like material 2a formed in a cross-sectional waveform as the outer tube 2 is hung spirally, the valley 2b is located at the boundary of the spiral, and the peak 2c is located in the valley 2b. It can comprise so that it may fit (Claim 2). In this case, the belt-like material 2a can be hung spirally without a gap, the pressure resistance becomes high, and the flexibility of the entire repair pipe can be improved.
In the above configuration, the metal wire 3 can be spirally interposed in the gap between the outer tube 2 and the inner tube 1 (Claim 3). In this case, a repair pipe with higher pressure resistance can be provided.

上記構成において、外管２を形成する帯状材2aの波は1サイクルまたは半サイクルとすることができる（請求項４）。その場合には、帯状材2aを内管１の外周に容易に螺旋状に懸回できる。
上記構成において、内管１として断面が平坦な帯状材1aを螺旋状に形成し、隣接するその螺旋の境どうしを接合することができる（請求項５）。この場合には、一つの帯状材1aで各種内径の既設配管の補修用管を形成することができる。
上記補修用管において、外管２の帯状材2aをガラス繊維強化プラスチックにより構成することができる（請求項６）。この場合には、さらに耐圧性の高いものとなる。 In the above configuration, the wave of the band-shaped material 2a forming the outer tube 2 can be one cycle or half cycle (Claim 4). In that case, the belt-like material 2a can be easily hung around the outer circumference of the inner tube 1 in a spiral shape.
In the above-described configuration, the strip 1a having a flat cross section can be formed in a spiral shape as the inner tube 1 and the adjacent spiral boundaries can be joined together (claim 5). In this case, it is possible to form repair pipes for existing pipes having various inner diameters with a single strip 1a.
In the repair pipe, the strip 2a of the outer pipe 2 can be made of glass fiber reinforced plastic (claim 6). In this case, the pressure resistance is higher.

本発明の配管補修方法は、上記何れかの補修用管４を用い、それを既設配管５に挿入し、次いで補修用管４の端部と既設配管５の開口端との間を硬化性樹脂剤または接着剤或いは充填剤により接合することを特徴とする（請求項７）。
この補修方法によれば、既設配管の補修を迅速且つ容易に行うことができる。即ち、内管１として軟質塩化ビニール樹脂剤を用いているので、その端部と既設配管５の開口端との接合が容易であり、それらの接合により液密性を永続的に維持し得る配管の補修を完成する。 The pipe repairing method of the present invention uses any one of the above-mentioned repair pipes 4 and inserts it into the existing pipe 5, and then the curable resin between the end of the repair pipe 4 and the open end of the existing pipe 5. It joins with an agent, an adhesive agent, or a filler (Claim 7).
According to this repair method, the existing piping can be repaired quickly and easily. That is, since a soft vinyl chloride resin agent is used as the inner pipe 1, it is easy to join the end of the pipe and the open end of the existing pipe 5, and the pipe that can permanently maintain liquid-tightness by the joining. Complete the repair.

上記補修方法において、既設配管５が一対のマンホール６の両端に連通する本管5aと、その本管5aに一端が連通すると共に、他端が桝７に連通する取付管5bとからなる場合において、その本管5aに第１の補修用管４を挿入して、その両端部を一対のマンホール６の開口に接合し、次いで取付管5bと本管5aとの接続部で第１の補修用管４の内面側より接続用開口5cを形成し、その取付管5b内に第２の補修用管４を挿入して、その一端開口を桝７の開口に接続すると共に、他端開口を接続用開口5cに接合することができる（請求項８）。
この補修方法によれば、本管5aと取付管5bとを容易に且つ迅速に補修することができる。 In the above repair method, when the existing pipe 5 includes a main pipe 5a communicating with both ends of the pair of manholes 6 and a mounting pipe 5b having one end communicating with the main pipe 5a and the other end communicating with the flange 7. The first repair pipe 4 is inserted into the main pipe 5a, both ends thereof are joined to the openings of the pair of manholes 6, and then the first repair pipe is connected at the connection portion between the mounting pipe 5b and the main pipe 5a. The connection opening 5c is formed from the inner surface side of the tube 4, the second repair tube 4 is inserted into the mounting tube 5b, and one end opening is connected to the opening of the flange 7 and the other end opening is connected. It can be joined to the opening 5c for use (claim 8).
According to this repair method, the main pipe 5a and the mounting pipe 5b can be repaired easily and quickly.

次に、図面に基づいて本発明の実施の形態につき説明する。
図１は、本発明の補修用管の要部縦断面図であり、図２は同補修用管を湾曲させた場合の要部縦断面図説明図である。
この補修用管は、内管１と外管２とを有する。内管１は、内面が平坦な可撓性の軟質塩化ビニール樹脂材よりなる。外管２は、その横断面が矩形波状に形成され、その波長が１サイクル分有する細長い帯状材2aからなり、その帯状材2aを密に内管１の外面に螺旋状に懸回させたものである。そして、帯状材2aの山部2cの縁部が隣り合う帯状材2aの谷部2b内に嵌入している。そして各帯状材2aの谷部2bの外面側と、内管１外周との間のみが接着固定されている。この例では、帯状材2aが硬質の塩化ビニール樹脂材よりなる。そのため、帯状材2aと内管１とは極めて容易に且つ強固に塩化ビニール用接着剤等により強固に接合される。 Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a longitudinal sectional view of an essential part of a repair pipe according to the present invention, and FIG. 2 is an explanatory view of an essential part longitudinal sectional view when the repair pipe is bent.
This repair pipe has an inner pipe 1 and an outer pipe 2. The inner tube 1 is made of a flexible soft vinyl chloride resin material having a flat inner surface. The outer tube 2 is formed of an elongated band-shaped material 2a whose cross section is formed in a rectangular wave shape and whose wavelength is equivalent to one cycle, and the band-shaped material 2a is tightly wound around the outer surface of the inner tube 1 in a spiral shape. It is. Then, the edge of the crest 2c of the strip 2a is fitted into the valley 2b of the adjacent strip 2a. And only between the outer surface side of the trough part 2b of each strip | belt-shaped material 2a, and the outer periphery of the inner tube | pipe 1 is adhesively fixed. In this example, the belt-like material 2a is made of a hard vinyl chloride resin material. Therefore, the belt-like material 2a and the inner tube 1 are very easily and firmly joined firmly with an adhesive for vinyl chloride or the like.

なお、硬質塩化ビニール製の帯状材2aに代えて、ガラス繊維強化プラスチック（ＦＲＰ）を用いてもよい。その場合であっても、内管１と帯状材2aとは接着剤により容易に接着可能である。
この例では、螺旋状に帯状材2aを懸回したとき境界部は非接着状態にある。そしてこの例では、山部2cと谷部2bとの嵌着部に空間８が形成されている。このように嵌着部に空間８を形成することにより、補修用管４の可撓性が高くなる。即ち、補修用管４を図２の如く湾曲させたとき、凹湾曲側の空間８が容易に広がり、凸湾曲側のそれが容易に狭まって、全体として補修用管４は容易に変形する。 Glass fiber reinforced plastic (FRP) may be used in place of the hard vinyl chloride strip 2a. Even in that case, the inner tube 1 and the strip 2a can be easily bonded with an adhesive.
In this example, when the belt-like material 2a is suspended in a spiral shape, the boundary portion is in an unbonded state. And in this example, the space 8 is formed in the fitting part of the peak part 2c and the trough part 2b. Thus, by forming the space 8 in the fitting portion, the flexibility of the repair pipe 4 is increased. That is, when the repair pipe 4 is curved as shown in FIG. 2, the concave curved space 8 is easily expanded and the convex curved side is easily narrowed, so that the repair pipe 4 is easily deformed as a whole.

次に、内管１はチューブ状の押し出し成形材を使用することもできるが、それに代えて図３の如く、断面が平坦な帯状材1aをガイド柱９の外周に螺旋状に懸回し、隣接するその螺旋の境界どうしを接合し、さらにその外周に硬質の帯状材2aを懸回して外管２を形成し、その谷部2bの外面と内管１外面との間を接着し、全体をガイド柱９から抜き取ることにより、本補修用管４を完成することができる。この場合、ガイド柱９の直径を変えることにより、各種直径の内管１を構成することができる。
なお、ガイド柱９としてはポリエチレン等の難接着性の棒材または管材を用いることが好ましい。 Next, as the inner tube 1, a tube-like extruded material can be used. Instead, as shown in FIG. 3, a belt-like material 1a having a flat cross section is hung around the outer periphery of the guide column 9 in a spiral manner. Bonding the spiral boundaries to each other, suspending a hard strip 2a around the outer periphery to form the outer tube 2, and bonding the outer surface of the valley 2b and the outer surface of the inner tube 1 together, By pulling out from the guide column 9, the repair pipe 4 can be completed. In this case, the inner pipe 1 having various diameters can be configured by changing the diameter of the guide column 9.
In addition, as the guide pillar 9, it is preferable to use a hard-to-adhere bar material or pipe material such as polyethylene.

前記の実施形態では、帯状材2aとして１サイクル分の矩形波状のものを用いたが、台形波またはサインカーブ状のものを用いても良い。さらには図４に示す如く、帯状材2aとして半サイクル分の矩形波状等のものを用い、それを一対隣接状態で全体を螺旋状に内管１の回りに形成してもよい。
次に、図５の実施形態は、内管１と外管２との間の隙間に金属線３を螺旋状に介装したものである。このような金属線３を挿入することにより、補修用管４の耐圧性を向上し得る。 In the above embodiment, the strip-shaped material 2a has a rectangular wave shape for one cycle. However, a trapezoidal wave or a sine curve shape may be used. Furthermore, as shown in FIG. 4, a strip-like material 2a having a rectangular wave shape corresponding to a half cycle may be used, and the whole may be spirally formed around the inner tube 1 in an adjacent state.
Next, in the embodiment of FIG. 5, the metal wire 3 is spirally interposed in the gap between the inner tube 1 and the outer tube 2. By inserting such a metal wire 3, the pressure resistance of the repair pipe 4 can be improved.

次に、このような補修用管４を用いて既設配管５の内部を補修する方法につき述べる。図６〜図９は下水用の既設配管５の内部を本発明の補修用管４により補修する方法の一例を順に説明する図である。
この既設配管５は、図６に示す如く一対のマンホール６間に本管5aが設けられ、その本管5aの途中に取付管5bの一端が連結され、その取付管5bの他端が桝７に連通したものである。 Next, a method of repairing the inside of the existing pipe 5 using such a repair pipe 4 will be described. 6-9 is a figure explaining in order an example of the method of repairing the inside of the existing piping 5 for sewage with the repair pipe 4 of this invention.
In this existing pipe 5, as shown in FIG. 6, a main pipe 5a is provided between a pair of manholes 6, one end of an attachment pipe 5b is connected to the middle of the main pipe 5a, and the other end of the attachment pipe 5b is a flange 7. Communicated with

このような本管5aおよび取付管5bを共に補修用管４によって補修するには、一例として次の手順により行うことができる。
先ず、一方のマンホール６から補修用管４を本管5a内に導入し、他方のマンホール６の本管接続口6aまでその補修用管４を引き込む。そして図６において、マンホール６と本管5aとの本管接続口6aであるＡの地点で補修用管４を切断する。そして、その補修用管４の両端部と本管5aとを樹脂またはモルタル材で接合固定する。なお、本管5aに引き込む補修用管４の外直径は本管5aの内直径より僅かに小なるものとする。同様に、取付管5b内に導入する補修用管４の外直径はその取付管5bの内直径より僅かに小なるものとする。
次いで、本管5aの補修用管４内にカッタロボット14を導き、取付管5bの接続位置においてカッタロボット14のカッタ15を駆動し穿孔して補修用管４を開口する。次いで、桝７から取付管5b内に補修用管４を挿入し、その先端部を本管5aの接続用開口5cに位置させる。 To repair both the main pipe 5a and the mounting pipe 5b with the repair pipe 4, for example, the following procedure can be used.
First, the repair pipe 4 is introduced from one manhole 6 into the main pipe 5a, and the repair pipe 4 is drawn into the main pipe connection port 6a of the other manhole 6. In FIG. 6, the repair pipe 4 is cut at a point A, which is the main pipe connection port 6a between the manhole 6 and the main pipe 5a. Then, both ends of the repair pipe 4 and the main pipe 5a are joined and fixed with a resin or a mortar material. It is assumed that the outer diameter of the repair pipe 4 drawn into the main pipe 5a is slightly smaller than the inner diameter of the main pipe 5a. Similarly, it is assumed that the outer diameter of the repair pipe 4 introduced into the attachment pipe 5b is slightly smaller than the inner diameter of the attachment pipe 5b.
Next, the cutter robot 14 is guided into the repair pipe 4 of the main pipe 5a, and the cutter 15 of the cutter robot 14 is driven and drilled at the connection position of the mounting pipe 5b to open the repair pipe 4. Next, the repair pipe 4 is inserted from the flange 7 into the attachment pipe 5b, and the tip thereof is positioned in the connection opening 5c of the main pipe 5a.

次いで、図８に示す如く取付管5bの補修用管４の先端部と、本管5aの補修用管４との接続部との間を補修布11によって補修する。この補修布11は、フェルト材またはガラス繊維の布材に熱硬化性樹脂または光硬化性樹脂を含浸したものであり、全体が縦断面図Ｔ字の拡縮自在な筒状に形成されたものである。それを風船型の補修機10の外周に仮止めし、補修機10を取付管5bと本管5aとの接続部に導く。このとき、同時にカメラ車12を用いることが好ましい。次いで、補修機10の内部にエアーを供給してそれを膨張させ、その外周の補修布11を拡開させる。それと共に補修機10の内部から加熱し、または光を照射し、本管5aと取付管5bとの接続部に補修布11を一体的に接合させる。その接合状態を示すのが図９である。   Next, as shown in FIG. 8, the repair cloth 11 repairs the tip of the repair pipe 4 of the attachment pipe 5b and the connection portion of the main pipe 5a with the repair pipe 4. This repair cloth 11 is formed by impregnating a felt material or a glass fiber cloth material with a thermosetting resin or a photo-curing resin, and is formed in a vertically expandable / contractible cylindrical shape having a T-shaped longitudinal section. is there. It is temporarily fixed to the outer periphery of the balloon-type repair machine 10, and the repair machine 10 is guided to the connection portion between the mounting pipe 5b and the main pipe 5a. At this time, it is preferable to use the camera car 12 at the same time. Next, air is supplied to the inside of the repair machine 10 to expand it, and the repair cloth 11 on the outer periphery thereof is expanded. At the same time, the repair machine 10 is heated from the inside of the repair machine 10 or irradiated with light, and the repair cloth 11 is integrally joined to the connecting portion between the main pipe 5a and the mounting pipe 5b. FIG. 9 shows the joined state.

次いで、同図に示す如く、桝７の内部と取付管5bとの間を補修布11により一体的に接続する。この補修布11は、桝７およびその取付管5bに整合するものを用いると共に、前記同様にエアーを用いて桝７の図示しない風船型補修機によりそれを硬化させる。
なお、桝７が塩化ビニール製のものにおいては、桝７の下端に突設されたパイプ部と取付管5bの補修用管４との間を直接接着固定することもできる。
なお、上記の例では、本管5aと取付管5bの両者を補修したが、いずれか一方のみを本発明の補修用管４で補修することもできる。 Next, as shown in the figure, the inside of the flange 7 and the attachment pipe 5b are integrally connected by the repair cloth 11. The repair cloth 11 uses a cloth that matches the scissors 7 and the attachment pipe 5b, and hardens them with a balloon-type repair machine (not shown) of the scissors 7 using air in the same manner as described above.
When the flange 7 is made of vinyl chloride, the pipe portion protruding from the lower end of the flange 7 and the repair pipe 4 of the attachment pipe 5b can be directly bonded and fixed.
In the above example, both the main pipe 5a and the attachment pipe 5b are repaired, but only one of them can be repaired by the repair pipe 4 of the present invention.

本発明の補修用管の要部縦断面図。The principal part longitudinal cross-sectional view of the pipe for repair of this invention. 同補修用管の変形状態を示す説明図。Explanatory drawing which shows the deformation | transformation state of the pipe for repair. 同補修用管に用いられる内管１の製造方法の一例を示す説明図。Explanatory drawing which shows an example of the manufacturing method of the inner pipe | tube 1 used for the pipe for the said repair. 本発明の補修用管の他の例を示す要部縦断面図。The principal part longitudinal cross-sectional view which shows the other example of the pipe for repair of this invention. 本発明の補修用管のさらに他の例を示す要部縦断面図。The principal part longitudinal cross-sectional view which shows the further another example of the pipe for repair of this invention.

本発明の補修用管を用いて、既設配管５の本管5aを補修する第１段階を示す説明図。Explanatory drawing which shows the 1st step which repairs the main pipe 5a of the existing piping 5 using the pipe for repair of this invention. 同第２段階を示す説明図。Explanatory drawing which shows the 2nd step. 既設の取付管5bおよび本管5aを補修用管４により補修する方法の説明図。Explanatory drawing of the method of repairing the existing attachment pipe 5b and the main pipe 5a with the repair pipe 4. FIG. 同部の補修状態を示す説明図。Explanatory drawing which shows the repair state of the part.

符号の説明Explanation of symbols

１ 内管
1a 帯状材
２ 外管
2a 帯状材
2b 谷部
2c 山部
３ 金属線
４ 補修用管 1 Inner pipe
1a Strip 2 Outer tube
2a Strip
2b Tanibe
2c Yamabe 3 Metal wire 4 Repair pipe

５ 既設配管
5a 本管
5b 取付管
5c 接続用開口
６ マンホール
6a 本管接続口
７ 桝
８ 空間 5 Existing piping
5a Main
5b Mounting pipe
5c Connection opening 6 Manhole
6a Main connection port 7 桝 8 space

９ ガイド柱
10 補修機
11 補修布
12 カメラ車
13 ケーブル
14 カッタロボット
15 カッタ 9 Guide pillar
10 Repair machine
11 Repair cloth
12 camera car
13 Cable
14 Cutter robot
15 cutter

Claims (8)

内面が平坦な可撓性の軟質塩化ビニール樹脂材よりなる内管(1)と、
硬質の樹脂材よりなり、横断面を波形に形成した細長い帯状材(2a)が、前記内管(1)の外面に螺旋状に懸回されて、その波の一部のみが前記内管(1)に接着固定された外管(2)と、
を具備する補修用管。 An inner tube (1) made of a flexible soft vinyl chloride resin material whose inner surface is flat,
An elongated strip (2a) made of a hard resin material and having a corrugated cross section is hung spirally around the outer surface of the inner tube (1), and only a part of the wave is the inner tube ( An outer tube (2) adhered and fixed to 1),
A repair pipe comprising: 請求項１において、
前記外管(2)は、その帯状材(2a)の幅方向の一方の縁部に波の谷部(2b)が存在し、他方の縁部に波の山部(2c)が存在し、前記螺旋状に懸回されたとき、その螺旋の境はその谷部(2b)内に山部(2c)が被嵌するように構成され、谷部(2b)の外表面のみが前記内管(1) に接着固定されてなる補修用管。 In claim 1,
The outer tube (2) has a wave trough (2b) at one edge in the width direction of the strip (2a), and a wave crest (2c) at the other edge, When suspended in the spiral, the boundary of the spiral is configured such that the peak (2c) fits in the valley (2b), and only the outer surface of the valley (2b) is the inner tube. (1) Repair pipe that is bonded and fixed. 請求項１または請求項２において、
前記外管(2)と内管(1)との隙間に、金属線(3)が螺旋状に介装された補修用管。 In claim 1 or claim 2,
A repair pipe in which a metal wire (3) is spirally interposed in a gap between the outer pipe (2) and the inner pipe (1). 請求項１〜請求項３のいずれかにおいて、
前記外管(2)を形成する帯状材(2a)は、その波が1サイクルまたは半サイクル形成されたものよりなる補修用管。 In any one of Claims 1-3,
The belt-like material (2a) forming the outer pipe (2) is a repair pipe made of a wave formed in one cycle or half cycle. 請求項１〜請求項４のいずれかにおいて、
前記内管(1)は、断面が平坦な帯状材(1a)を螺旋状に形成し、隣接するその螺旋の境界どうしが接合されてなり、前記外管(2)の帯状材(2a)は硬質塩化ビニール材よりなる補修用管。 In any one of Claims 1-4,
The inner pipe (1) is formed by forming a strip-shaped material (1a) having a flat cross section into a spiral shape, and the boundary between adjacent spirals is joined, and the strip-shaped material (2a) of the outer tube (2) is Repair pipe made of hard vinyl chloride material. 請求項１〜請求項５のいずれかにおいて、
前記外管(2)の帯状材(2a)がガラス繊維強化プラスチックよりなる補修用管。 In any one of Claims 1-5,
A repair pipe in which the strip (2a) of the outer pipe (2) is made of glass fiber reinforced plastic. 請求項１〜請求項５のいずれかの補修用管(4)を、既設配管(5)内挿入し、次いでその補修用管(4)の端部と既設配管(5)の開口端との間を硬化性樹脂剤または接着剤或いは充填剤により接合する配管補修方法。   The repair pipe (4) according to any one of claims 1 to 5 is inserted into the existing pipe (5), and then the end of the repair pipe (4) and the open end of the existing pipe (5) A pipe repair method in which a gap is bonded with a curable resin agent, an adhesive, or a filler. 請求項７において、
前記既設配管(5)は、一対のマンホール(6)に両端が連結された本管(5a)と、その本管(5a)に一端が連通すると共に、他端が桝(7)に連結された取付管(5b)とであり、
その本管(5a)内に第１の補修用管(4)を挿入して、その両端部を一対のマンホール(6)の本管接続口(6a)の縁部に接合し、次いで、前記取付管(5b)と本管(5a)との接続部で、前記第１の補修用管(4)の内面側より接続用開口(5c)を形成し、
その取付管(5b)内に第２の補修用管(4)を挿入して、その一端開口を桝(7)の開口に接合すると共に、他端開口を前記接続用開口(5c)に接合することとした配管補修方法。 In claim 7,
The existing pipe (5) has a main pipe (5a) having both ends connected to a pair of manholes (6), one end communicating with the main pipe (5a), and the other end connected to a flange (7). Mounting pipe (5b),
The first repair pipe (4) is inserted into the main pipe (5a), and both ends thereof are joined to the edge of the main pipe connection port (6a) of the pair of manholes (6). A connection opening (5c) is formed from the inner surface side of the first repair pipe (4) at the connection portion between the mounting pipe (5b) and the main pipe (5a).
The second repair pipe (4) is inserted into the mounting pipe (5b), and one end opening is joined to the opening of the flange (7), and the other end opening is joined to the connection opening (5c). Piping repair method to be done.
JP2007178775A 2007-07-06 2007-07-06 Repairing pipe and pipe repairing method Pending JP2009014149A (en)

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JPS62172886A (en) * 1986-01-27 1987-07-29 Fuji Photo Film Co Ltd Orthogonal transform coding method for picture data
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