JP2024093129A - Pipe making machine - Google Patents

Abstract

【課題】補強部材を適切に取り付けることができる製管機を提供する。【解決手段】製管機は、螺旋巻きガイド装置、連結装置および取付装置７２を備える。取付装置は、補強部材送りローラ１２０、第１反力受けローラ１２２、補強部材曲げローラ１２４および第２反力受けローラ１２６を備え、補強部材送りローラおよび第１反力受けローラで補強部材の径方向位置を固定しながら、第２反力受けローラを曲げ支点として補強部材曲げローラによって補強部材を押圧することで、補強部材を所定の曲率で湾曲させる。【選択図】図２７[Problem] To provide a pipe making machine capable of properly attaching a reinforcing member. [Solution] The pipe making machine includes a spiral winding guide device, a connecting device, and an attachment device 72. The attachment device includes a reinforcing member feed roller 120, a first reaction force receiving roller 122, a reinforcing member bending roller 124, and a second reaction force receiving roller 126, and while the radial position of the reinforcing member is fixed by the reinforcing member feed roller and the first reaction force receiving roller, the reinforcing member is pressed by the reinforcing member bending roller with the second reaction force receiving roller as the bending fulcrum, thereby bending the reinforcing member with a predetermined curvature. [Selected Figure] Figure 27

Description

この発明は、ライニング部材を螺旋状に巻き回すと共にライニング部材の隣り合う側縁部どうしを連結することによって螺旋管を形成しながら、形成した螺旋管を既設管内に順次送り込んでいく、製管機に関する。 This invention relates to a pipe making machine that forms a helical pipe by winding a lining member in a spiral shape and connecting adjacent side edges of the lining member, and then feeds the formed helical pipe into an existing pipe.

従来の製管機の一例が特許文献１に開示される。特許文献１の製管機は、歯車機構を保持すると共に、歯車機構に回転駆動力を付与する駆動モータが取り付けられる剛性の取付け箱と、形成される管状体（螺旋管）と新たに供給される帯状部材（ライニング部材）との閉合部位に配され、帯状部材を挟着かつ駆動する外面ローラと内面ローラとからなり、少なくとも外面ローラは歯車機構に連動する接合ローラ部と、外面ローラに跨がり、取付け箱に固定される剛性の囲繞箱体と、相平行して配される複数のローラを保持する螺旋環状の枠体構造をなすと共に、囲繞箱体を介して固定され、新たに供給される帯状部材に沿って帯状部材の最初に閉合する部位に至る螺旋状に実質的に１回周して配される外周規制枠体とを備える。 One example of a conventional pipe making machine is disclosed in Patent Document 1. The pipe making machine of Patent Document 1 includes a rigid mounting box that holds a gear mechanism and is equipped with a drive motor that applies a rotational drive force to the gear mechanism, an outer roller and an inner roller that are arranged at the closure site between the tubular body (helical tube) being formed and a newly supplied strip-shaped member (lining member) and clamp and drive the strip-shaped member, with at least the outer roller being a joining roller section that is linked to the gear mechanism, a rigid surrounding box that straddles the outer roller and is fixed to the mounting box, and an outer periphery regulating frame that has a spiral ring-shaped frame structure that holds multiple rollers arranged in parallel, is fixed via the surrounding box, and is arranged in a spiral shape that essentially goes around once along the newly supplied strip-shaped member to the first closure site of the strip-shaped member.

特開２０１１‐１０４７７７号公報JP 2011-104777 A

既設管を更生する螺旋管には所定の強度（剛性）が求められる。螺旋管の強度を上げるためには、螺旋状に巻き回したライニング部材に補強部材を取り付けることが考えられる。しかしながら、高強度の補強部材を所定の曲率に湾曲させることは難しく、補強部材に逆曲げの変形が生じる等の不具合が発生する恐れがある。 A certain level of strength (rigidity) is required for the spiral pipes used to rehabilitate existing pipes. One way to increase the strength of the spiral pipe is to attach a reinforcing member to the spirally wound lining member. However, it is difficult to bend a high-strength reinforcing member to the specified curvature, and there is a risk of problems occurring, such as reverse bending deformation of the reinforcing member.

それゆえに、この発明の主たる目的は、新規な、製管機を提供することである。 Therefore, the primary object of this invention is to provide a novel pipe making machine.

この発明の他の目的は、補強部材を適切に取り付けることができる、製管機を提供することである。 Another object of the invention is to provide a pipe making machine that can properly attach reinforcing members.

第１の発明は、ライニング部材を螺旋状に巻き回すと共にライニング部材の隣り合う側縁部どうしを連結することによって螺旋管を形成しながら、形成した螺旋管を既設管内に順次送り込んでいく製管機であって、ライニング部材を螺旋状に巻き回すように案内する螺旋巻きガイド装置、螺旋状に巻き回したライニング部材の隣り合う側縁部どうしを連結する連結装置、および螺旋状に巻き回したライニング部材の外面側から補強部材を取り付ける取付装置を備え、取付装置は、補強部材を外面側から押圧して当該補強部材をライニング部材の外面側に取り付けると共に、螺旋管に回転力を与える補強部材送りローラ、補強部材送りローラを回転駆動させるモータ、補強部材送りローラと対向する周方向位置に設けられ、補強部材送りローラとの間でライニング部材を挟み込むように当該ライニング部材の内面側を押圧する第１反力受けローラ、螺旋管の回転方向における補強部材送りローラの下流側の周方向位置に当該補強部材送りローラと所定間隔をあけて設けられ、補強部材を外面側から押圧してライニング部材の外面に沿うように補強部材を湾曲させる補強部材曲げローラ、および補強部材送りローラと補強部材曲げローラとの間の周方向位置に設けられ、ライニング部材の内面側を押圧する第２反力受けローラを備える、製管機である。 The first invention is a pipe making machine that forms a helical pipe by winding a lining member in a spiral shape and connecting adjacent side edges of the lining member, and then sequentially feeds the formed helical pipe into an existing pipe. The machine is equipped with a spiral winding guide device that guides the lining member to be wound in a spiral shape, a connecting device that connects adjacent side edges of the helically wound lining member, and an attachment device that attaches a reinforcing member to the outer surface side of the helically wound lining member. The attachment device presses the reinforcing member from the outer surface side to attach the reinforcing member to the outer surface side of the lining member, and a reinforcing member feed roller that applies a rotational force to the helical pipe, a reinforcing part This pipe making machine is equipped with a motor that rotates and drives the material feed roller, a first reaction force receiving roller that is provided at a circumferential position opposite the reinforcing member feed roller and presses the inner side of the lining member so as to sandwich the lining member between the reinforcing member feed roller, a reinforcing member bending roller that is provided at a circumferential position downstream of the reinforcing member feed roller in the rotation direction of the helical tube and spaced a predetermined distance from the reinforcing member feed roller and presses the reinforcing member from the outer side to bend the reinforcing member to fit the outer surface of the lining member, and a second reaction force receiving roller that is provided at a circumferential position between the reinforcing member feed roller and the reinforcing member bending roller and presses the inner side of the lining member.

第１の発明では、製管機は、形成した螺旋管を既設管内に順次送り込んでいく元押し方式の製管機であって、螺旋巻きガイド装置、連結装置および取付装置を備える。螺旋巻きガイド装置は、ライニング部材を螺旋状に巻き回すように案内する装置である。連結装置は、螺旋状に巻き回されたライニング部材の隣り合う側縁部どうしを連結する装置である。取付装置は、螺旋状に巻き回したライニング部材の外面側から補強部材を取り付ける装置であって、補強部材送りローラ、第１反力受けローラ、補強部材曲げローラおよび第２反力受けローラを備えている。この取付装置は、補強部材送りローラおよび第１反力受けローラによって補強部材を取り付けると共に、補強部材送りローラおよび第１反力受けローラで補強部材の径方向位置を固定しながら、第２反力受けローラを曲げ支点として、補強部材曲げローラによって補強部材を外側から押圧することで、補強部材を所定の曲率に湾曲させる。 In the first invention, the pipe making machine is a push-type pipe making machine that sequentially feeds the formed spiral pipe into an existing pipe, and is equipped with a spiral winding guide device, a connecting device, and an attachment device. The spiral winding guide device is a device that guides the lining member so that it is wound in a spiral shape. The connecting device is a device that connects adjacent side edges of the spirally wound lining member. The attachment device is a device that attaches a reinforcing member from the outer surface side of the spirally wound lining member, and is equipped with a reinforcing member feed roller, a first reaction force receiving roller, a reinforcing member bending roller, and a second reaction force receiving roller. This attachment device attaches the reinforcing member using the reinforcing member feed roller and the first reaction force receiving roller, and while fixing the radial position of the reinforcing member using the reinforcing member feed roller and the first reaction force receiving roller, the reinforcing member is pressed from the outside by the reinforcing member bending roller with the second reaction force receiving roller as a bending fulcrum, thereby bending the reinforcing member to a predetermined curvature.

第１の発明によれば、取付装置が補強部材曲げローラおよび第２反力受けローラを備えるので、補強部材を所定の曲率に適切に曲げ成形することができる。したがって、補強部材を適切に取り付けることができ、高強度の螺旋管を適切に形成することができる。 According to the first invention, the mounting device is equipped with a reinforcing member bending roller and a second reaction force receiving roller, so the reinforcing member can be appropriately bent to a predetermined curvature. Therefore, the reinforcing member can be appropriately mounted, and a high-strength spiral tube can be appropriately formed.

第２の発明は、第１の発明に従属し、補強部材曲げローラは、螺旋管の径方向に移動可能に設けられており、補強部材の曲げ量が調整可能である。 The second invention is dependent on the first invention, and the reinforcing member bending roller is movable in the radial direction of the helical tube, and the amount of bending of the reinforcing member is adjustable.

第２の発明によれば、異なる口径の螺旋管を形成する他の製管機に取付装置を兼用できる。 According to the second invention, the mounting device can be used with other pipe making machines that form helical pipes of different diameters.

第３の発明は、第２の発明に従属し、補強部材曲げローラは、当該補強部材曲げローラの軸と平行に配置された揺動軸を支点として揺動可能に設けられたフレームに支持されている。 The third invention is dependent on the second invention, and the reinforcing member bending roller is supported by a frame that is rotatable about a pivot axis that is arranged parallel to the axis of the reinforcing member bending roller.

第３の発明によれば、補強部材曲げローラの径方向位置を容易に調整できる。 According to the third invention, the radial position of the reinforcing member bending roller can be easily adjusted.

第４の発明は、第１または第２の発明に従属し、補強部材送りローラを回転駆動させるモータは、補強部材曲げローラを回転駆動させるモータと兼用される。 The fourth invention is according to the first or second invention, and the motor that drives the reinforcing member feed roller is also used as the motor that drives the reinforcing member bending roller.

第５の発明は、第１または第２の発明に従属し、取付装置は、補強部材をライニング部材に取り付ける。 The fifth invention is dependent on the first or second invention, and the mounting device mounts the reinforcing member to the lining member.

第６の発明は、第１または第２の発明に従属し、取付装置は、ライニング部材の連結部分を跨いで覆うように、補強部材をライニング部材に取り付ける。 The sixth invention is dependent on the first or second invention, and the mounting device mounts the reinforcing member to the lining member so as to straddle and cover the connecting portion of the lining member.

第６の発明によれば、ライニング部材の連結部分を跨いで覆うように補強部材を取り付けるので、ライニング部材の連結部分の変形を抑制でき、耐震性に優れる螺旋管を形成できる。 According to the sixth invention, the reinforcing member is attached so as to straddle and cover the connecting portion of the lining member, so deformation of the connecting portion of the lining member can be suppressed, and a helical pipe with excellent earthquake resistance can be formed.

第７の発明は、第６の発明に従属し、連結装置は、ライニング部材に外面側から連結部材を取り付けることで、連結部材によってライニング部材の隣り合う側縁部どうしを連結し、取付装置は、連結部材を覆うように補強部材をライニング部材に取り付ける。 The seventh invention is dependent on the sixth invention, and the connecting device connects adjacent side edges of the lining member to each other by attaching a connecting member to the lining member from the outer surface side, and the mounting device attaches a reinforcing member to the lining member so as to cover the connecting member.

第７の発明によれば、ライニング部材の連結に連結部材を用いることで、螺旋管を形成する際に、隣り合うライニング部材の周長を合わせ易くなり、軸方向の全長に亘って口径が一様な螺旋管を形成できる。また、補強部材によって連結部材が保護されるので、連結部材が既設管の内面に擦れて傷つくことを防止できる。 According to the seventh invention, by using a connecting member to connect the lining members, it becomes easier to match the circumferential lengths of adjacent lining members when forming a helical pipe, and a helical pipe with a uniform diameter over its entire axial length can be formed. In addition, the connecting member is protected by the reinforcing member, so it is possible to prevent the connecting member from rubbing against the inner surface of the existing pipe and being damaged.

第８の発明は、第１または第２の発明に従属し、連結装置は、ライニング部材に外面側から連結部材を取り付けることで、連結部材によってライニング部材の隣り合う側縁部どうしを連結し、取付装置は、補強部材を連結部材に取り付ける。 The eighth invention is dependent on the first or second invention, and the connecting device connects adjacent side edges of the lining member to each other by attaching a connecting member to the outer surface side of the lining member, and the mounting device attaches the reinforcing member to the connecting member.

第８の発明によれば、ライニング部材の連結に連結部材を用いることで、螺旋管を形成する際に、隣り合うライニング部材の周長を合わせ易くなり、軸方向の全長に亘って口径が一様な螺旋管を形成できる。また、連結部材に補強部材を取り付けるので、ライニング部材の連結部分の変形を抑制でき、耐震性に優れる螺旋管を形成できる。 According to the eighth invention, by using a connecting member to connect the lining members, it becomes easier to match the circumferential lengths of adjacent lining members when forming a helical pipe, and a helical pipe with a uniform diameter over the entire axial length can be formed. In addition, by attaching a reinforcing member to the connecting member, deformation of the connecting portion of the lining members can be suppressed, and a helical pipe with excellent earthquake resistance can be formed.

この発明によれば、取付装置が補強部材曲げローラおよび第２反力受けローラを備えるので、補強部材を所定の曲率に適切に曲げ成形することができる。したがって、補強部材を適切に取り付けることができ、高強度の螺旋管を適切に形成することができる。 According to this invention, the mounting device is equipped with a reinforcing member bending roller and a second reaction force receiving roller, so the reinforcing member can be appropriately bent to a predetermined curvature. Therefore, the reinforcing member can be appropriately mounted, and a high-strength spiral tube can be appropriately formed.

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

この発明の一実施例である製管機を用いて既設管を更生する様子を模式的に示す図解図である。1 is a schematic diagram showing the process of rehabilitating an existing pipe using a pipe making machine according to one embodiment of the present invention; FIG. 製管機によって形成された螺旋管を示す斜視図である。FIG. 2 is a perspective view showing a helical tube formed by a tube making machine. 管更生部材が備えるライニング部材の一例を示す斜視図である。FIG. 2 is a perspective view showing an example of a lining member provided in a pipe rehabilitation member. 図３のライニング部材を示す断面図である。FIG. 4 is a cross-sectional view showing the lining member of FIG. 3 . 管更生部材が備える連結部材の一例を示す斜視図である。1 is a perspective view showing an example of a connecting member provided in a pipe rehabilitation member. FIG. 図５の連結部材を示す断面図である。FIG. 6 is a cross-sectional view showing the connecting member of FIG. 5 . 管更生部材が備える補強部材の一例を示す斜視図である。1 is a perspective view showing an example of a reinforcing member provided in a pipe rehabilitation member. FIG. 図７の補強部材を示す断面図である。FIG. 8 is a cross-sectional view showing the reinforcing member of FIG. 7 . 管更生部材を用いて螺旋管を形成する様子を示す図である。13A and 13B are diagrams showing how a spiral pipe is formed using a pipe rehabilitation member. 螺旋管の補強部材周辺部を拡大して示す図である。4 is an enlarged view showing the periphery of a reinforcing member of a spiral tube. FIG. この発明の一実施例である製管機を示す正面図である。1 is a front view showing a pipe making machine according to one embodiment of the present invention. 図１１の製管機を示す平面図である。FIG. 12 is a plan view showing the pipe making machine of FIG. 図１１の製管機を示す左側面図である。A left side view showing the pipe making machine of Figure 11. 図１１の製管機を示す右側面図である。A right side view showing the pipe making machine of Figure 11. 図１１の製管機が備える螺旋巻きガイド装置を示す正面図である。A front view showing a spiral winding guide device provided in the pipe making machine of Figure 11. 図１５の螺旋巻きガイド装置を示す展開図である。FIG. 16 is a development view showing the spiral winding guide device of FIG. 15 . 図１１の製管機が備えるライニング部材送り装置を示す正面図である。12 is a front view showing a lining material feeding device provided in the pipe making machine of FIG. 11. 図１７のライニング部材送り装置を示す左側面図である。FIG. 18 is a left side view showing the lining member feeding device of FIG. 17 . 図１７のライニング部材送り装置のライニング部材送りローラの周辺部分を示す断面図である。18 is a cross-sectional view showing a peripheral portion of a lining member feeding roller of the lining member feeding device of FIG. 17. 図１７のライニング部材送り装置が備える４方向ガイドローラを示す平面図である。18 is a plan view showing a four-way guide roller provided in the lining member feeding device of FIG. 17. 図１７のライニング部材送り装置の座屈防止ガイドローラ群の周辺部分を示す断面図である。18 is a cross-sectional view showing the periphery of a group of buckling prevention guide rollers of the lining member feeding device of FIG. 17. 図１１の製管機が備える連結部材ガイド装置を示す正面図である。12 is a front view showing a connecting member guide device provided in the pipe making machine of FIG. 11 . 図１１の製管機が備える補強部材送り曲げ装置を示す正面図である。12 is a front view showing a reinforcing member feed bending device provided in the pipe making machine of FIG. 11. 図１１の製管機が備える連結装置を示す正面図である。A front view showing a connecting device provided on the pipe making machine of Figure 11. 図２４の連結装置を示す右側面図である。FIG. 25 is a right side view of the coupling device of FIG. 24 . 図２４の連結装置の嵌合ローラおよび反力受けローラの周辺部分を示す断面図である。25 is a cross-sectional view showing the peripheral portion of the engagement roller and the reaction force receiving roller of the connecting device of FIG. 24. 図１１の製管機が備える取付装置を示す正面図である。A front view showing an attachment device provided on the pipe making machine of Figure 11. 図２７の取付装置を示す平面図である。FIG. 28 is a plan view of the mounting device of FIG. 27. 図２７の取付装置を示す断面図である。FIG. 28 is a cross-sectional view of the mounting device of FIG. 27. 図２７の取付装置における各ローラの位置関係を示す図である。28 is a diagram showing the positional relationship of each roller in the mounting device of FIG. 27. 図１１の製管機をマンホール内に設置した様子を示す図である。A diagram showing the pipe making machine of Figure 11 installed inside a manhole. 管更生部材の他の一例を示す図である。FIG. 11 is a diagram showing another example of a pipe rehabilitation member. 管更生部材のさらに他の一例を示す図である。FIG. 11 is a diagram showing yet another example of a pipe rehabilitation member.

図１および図２を参照して、この発明の一実施例である製管機６０は、既設管２００を更生するための螺旋管２０２（更生管）をマンホール２１０内において形成（製管）して既設管２００内に押し出す、元押し方式の製管機である。詳細は後述するように、製管機６０は、ライニング部材１２を螺旋状に巻き回すと共に、螺旋状に巻き回したライニング部材１２の隣り合う側縁部どうしを連結部材１４で連結する。その後、ライニング部材１２の連結部分を跨いで覆うようにライニング部材１２に補強部材１６を取り付けることによって螺旋管２０２を形成する。そして、形成した螺旋管２０２を既設管２００内に順次送り込んでいくことによって、既設管２００内に螺旋管２０２を敷設する。 1 and 2, a pipe making machine 60 according to an embodiment of the present invention is a pipe making machine of the original push type that forms (makes) a spiral pipe 202 (rehabilitation pipe) for rehabilitating an existing pipe 200 in a manhole 210 and pushes it into the existing pipe 200. As will be described in detail later, the pipe making machine 60 winds the lining member 12 in a spiral shape and connects adjacent side edges of the spirally wound lining member 12 with a connecting member 14. After that, the spiral pipe 202 is formed by attaching a reinforcing member 16 to the lining member 12 so as to straddle and cover the connecting portion of the lining member 12. Then, the formed spiral pipe 202 is sequentially fed into the existing pipe 200, thereby laying the spiral pipe 202 in the existing pipe 200.

なお、この発明に係る製管機６０は、鉄筋コンクリート製、合成樹脂製および金属製などの種々の既設管２００の更生に用いることが可能である。また、この製管機６０は、３００ｍｍ以上１０００ｍｍ以下の口径を有する下水管の更生に好適に用いられ、その中でも、８００ｍｍ以上１０００ｍｍ以下の口径の下水管の更生に特に好適に用いられる。ただし、製管機６０は、１０００ｍｍ以上の口径を有する既設管２００の更生に用いることも可能である。 The pipe making machine 60 according to the present invention can be used to rehabilitate various existing pipes 200, such as those made of reinforced concrete, synthetic resin, and metal. The pipe making machine 60 is also suitable for use in rehabilitating sewer pipes having a diameter of 300 mm or more and 1000 mm or less, and is particularly suitable for use in rehabilitating sewer pipes having a diameter of 800 mm or more and 1000 mm or less. However, the pipe making machine 60 can also be used to rehabilitate existing pipes 200 having a diameter of 1000 mm or more.

また、この製管機６０によって形成された螺旋管２０２は、補強部材１６によって補強されているので、基本的には、既設管２００から独立して強度を保持する自立管として用いられる。ただし、螺旋管２０２は、充填材によって既設管２００と一体化された複合管として用いることもできる。 The helical pipe 202 formed by this pipe making machine 60 is reinforced by the reinforcing member 16, so it is basically used as a free-standing pipe that maintains its strength independent of the existing pipe 200. However, the helical pipe 202 can also be used as a composite pipe integrated with the existing pipe 200 by a filling material.

先ず、製管機６０の具体的な説明に先立ち、この実施例で用いる管更生部材１０の一例について説明する。ただし、以下に述べる管更生部材１０の具体的な構成ないし形状は、単なる一例であり、これに限定されるものではない。 First, before describing the pipe making machine 60 in detail, an example of the pipe rehabilitation member 10 used in this embodiment will be described. However, the specific configuration and shape of the pipe rehabilitation member 10 described below are merely examples and are not limited to these.

図１および図２に示すように、管更生部材１０は、螺旋管２０２を形成するための部材であって、ライニング部材１２と、ライニング部材１２の側縁部どうしを連結するための連結部材１４と、ライニング部材１２の連結部分を補強するための補強部材１６とを含む。この実施例では、ライニング部材１２は、螺旋状に巻き回したときの外面側に連結部材１４および補強部材１６との嵌合部（第１嵌合部２２,突条３４）を備えている。そして、連結部材１４は、螺旋状に巻き回したライニング部材１２の外面側からライニング部材１２に取り付けられる。また、補強部材１６は、連結部材１４によって連結されたライニング部材１２の連結部分を跨いで覆うように、ライニング部材１２の外面側からライニング部材１２に取り付けられる。以下、ライニング部材１２、連結部材１４および補強部材１６の構成について説明する。 1 and 2, the pipe rehabilitation member 10 is a member for forming a spiral pipe 202, and includes a lining member 12, a connecting member 14 for connecting the side edges of the lining member 12, and a reinforcing member 16 for reinforcing the connecting portion of the lining member 12. In this embodiment, the lining member 12 has an engaging portion (first engaging portion 22, protrusion 34) with the connecting member 14 and the reinforcing member 16 on the outer surface side when wound in a spiral shape. The connecting member 14 is attached to the lining member 12 from the outer surface side of the lining member 12 wound in a spiral shape. The reinforcing member 16 is attached to the lining member 12 from the outer surface side of the lining member 12 so as to straddle and cover the connecting portion of the lining member 12 connected by the connecting member 14. The configurations of the lining member 12, the connecting member 14, and the reinforcing member 16 will be described below.

図３および図４に示すように、ライニング部材１２は、螺旋管２０２の主構成要素となる長尺の部材であって、帯板状の基体２０（ライニング基体）を備える。基体２０の一方主面２０ａは、螺旋管２０２の内面を構成する面であり、平滑面となっている。基体２０の幅は、たとえば７５ｍｍであり、基体２０の厚み（肉厚）は、たとえば２.５ｍｍである。 As shown in Figures 3 and 4, the lining member 12 is a long member that is the main component of the spiral pipe 202, and includes a strip-shaped base body 20 (lining base body). One main surface 20a of the base body 20 is a surface that constitutes the inner surface of the spiral pipe 202, and is a smooth surface. The width of the base body 20 is, for example, 75 mm, and the thickness (wall thickness) of the base body 20 is, for example, 2.5 mm.

基体２０の他方主面２０ｂ側、つまりライニング部材１２を螺旋状に巻き回したときの外面側の両側部のそれぞれには、後述する連結部材１４の第２嵌合部４２と嵌め合わされる第１嵌合部２２が形成される。第１嵌合部２２は、基体２０の長手方向に延びる第１突条２４と第２突条２６とを含む溝状に形成される。第１突条２４は、基体２０の他方主面２０ｂの両側縁部に形成され、第２突条２６は、第１突条２４よりも基体２０の幅方向における内側に形成される。第１突条２４の一方側面（基体２０の幅方向における内側の面）の先端部には、基体２０の幅方向内側に向かって突出する第１係止片２４ａが形成される。この第１係止片２４ａは、連結部材１４の第２嵌合部４２の第２係止片４２ａと係合される。また、第２突条２６は、第１突条２４と協働して連結部材１４の第２嵌合部４２を挟持する。 On the other main surface 20b side of the base 20, that is, on both sides of the outer surface side when the lining member 12 is wound in a spiral shape, a first fitting portion 22 is formed to fit with a second fitting portion 42 of the connecting member 14 described later. The first fitting portion 22 is formed in a groove shape including a first protrusion 24 and a second protrusion 26 extending in the longitudinal direction of the base 20. The first protrusion 24 is formed on both side edges of the other main surface 20b of the base 20, and the second protrusion 26 is formed on the inside in the width direction of the base 20 from the first protrusion 24. A first locking piece 24a that protrudes toward the inside in the width direction of the base 20 is formed at the tip of one side surface of the first protrusion 24 (the inner surface in the width direction of the base 20). This first locking piece 24a is engaged with a second locking piece 42a of the second fitting portion 42 of the connecting member 14. Additionally, the second ridge 26 cooperates with the first ridge 24 to clamp the second fitting portion 42 of the connecting member 14.

第１嵌合部２２の内部、つまり第１突条２４と第２突条２６との間の基体２０の他方主面２０ｂ側には、弾性体であるエラストマ等によって長尺の丸棒状に形成される止水部材２８が設けられる。止水部材２８は、ライニング部材１２の第１嵌合部２２と連結部材１４の第２嵌合部４２とを嵌め合わせた際に、基体２０の他方主面２０ｂおよび第１突条２４の一方側面と第２嵌合部４２の先端部との間に挟み込まれることで、圧縮される（図１０参照）。この止水部材２８によって、ライニング部材１２の連結部分における止水性（水密性）が確保される。 A water-stopping member 28 formed in a long round bar shape from an elastic material such as elastomer is provided inside the first fitting portion 22, that is, on the other main surface 20b side of the base 20 between the first ridge 24 and the second ridge 26. When the first fitting portion 22 of the lining member 12 and the second fitting portion 42 of the connecting member 14 are fitted together, the water-stopping member 28 is compressed by being sandwiched between the other main surface 20b of the base 20, one side of the first ridge 24, and the tip of the second fitting portion 42 (see FIG. 10). This water-stopping member 28 ensures water-stopping (watertightness) in the connecting portion of the lining member 12.

また、基体２０の幅方向中央部には、基体２０の一部を他方主面２０ｂ側に突出するように幅方向に弛ませた変位吸収部３０が形成される。変位吸収部３０は、一方主面２０ａから離れるに従って幅方向に拡がるように形成される一対の側壁部３０ａと、側壁部３０ａの先端部どうしを連結する連結部３０ｂとを有する。また、変位吸収部３０の基端部間には、隙間３２が形成されている。変位吸収部３０の他方主面２０ｂからの突出高さは、たとえば１２ｍｍであり、隙間３２の幅は、たとえば１ｍｍである。このような変位吸収部３０を基体２０が有することで、ライニング部材１２を用いて形成された螺旋管２０２は、この変位吸収部３０の部分において、軸方向および曲がり方向に変形し易くなる。このため、既設管２００内に螺旋管２０２を送り込むときには、既設管２００の曲り部、屈曲部および段差部に螺旋管２０２が追従可能となる。また、螺旋管２０２の施工後に地震が発生した際には、変位吸収部３０が伸長して軸方向変位を吸収することで、ライニング部材１２の連結部分の変形が抑制される。 In addition, a displacement absorbing section 30 is formed in the center of the width of the base 20, in which a part of the base 20 is loosened in the width direction so as to protrude toward the other main surface 20b. The displacement absorbing section 30 has a pair of side wall sections 30a formed to expand in the width direction as it moves away from the one main surface 20a, and a connecting section 30b connecting the tip ends of the side wall sections 30a. A gap 32 is formed between the base ends of the displacement absorbing section 30. The protruding height of the displacement absorbing section 30 from the other main surface 20b is, for example, 12 mm, and the width of the gap 32 is, for example, 1 mm. By having such a displacement absorbing section 30 in the base 20, the spiral pipe 202 formed using the lining member 12 becomes easily deformed in the axial direction and the bending direction at the portion of the displacement absorbing section 30. Therefore, when the spiral pipe 202 is fed into the existing pipe 200, the spiral pipe 202 can follow the curved section, bent section, and step section of the existing pipe 200. Furthermore, if an earthquake occurs after the spiral pipe 202 is installed, the displacement absorbing section 30 expands to absorb the axial displacement, thereby suppressing deformation of the connecting portion of the lining member 12.

さらに、基体２０の他方主面２０ｂの両側部のそれぞれには、第２突条２６よりも基体２０の幅方向における内側において、基体２０の長手方向に延びる突条３４（第３突条）が形成される。この突条３４の一方側面（基体２０の幅方向における内側の面）の先端部には、基体２０の幅方向内側に向かって突出する爪部３４ａが形成される。この爪部３４ａは、後述する補強部材１６の被係止部（延出部５６の先端部）を係止する係止部として機能する。突条３４の他方主面２０ｂからの突出高さは、たとえば１４ｍｍであり、突条３４の幅（厚み）は、たとえば３ｍｍである。また、突条３４の一方側面からの爪部３４ａの突出高さは、たとえば２ｍｍである。 Furthermore, on each side of the other main surface 20b of the base 20, a protrusion 34 (third protrusion) is formed extending in the longitudinal direction of the base 20, on the inside of the second protrusion 26 in the width direction of the base 20. A claw portion 34a protruding toward the inside of the width direction of the base 20 is formed at the tip of one side surface of this protrusion 34 (the inner surface in the width direction of the base 20). This claw portion 34a functions as a locking portion that locks the locked portion (the tip of the extension portion 56) of the reinforcing member 16 described later. The protrusion 34 protrudes from the other main surface 20b by a height of, for example, 14 mm, and the protrusion 34 has a width (thickness) of, for example, 3 mm. The protrusion 34a protrudes from one side surface of the protrusion 34 by a height of, for example, 2 mm.

このようなライニング部材１２は、たとえば、ポリエチレン樹脂、ポリプロピレン樹脂、ナイロン樹脂、フッ素樹脂および硬質塩化ビニル樹脂などの合成樹脂の押出成形によって一体成形される。そして、第１嵌合部２２（第１突条２４および第２突条２６）、変位吸収部３０および突条３４は、基体２０の長手方向の全長に亘って形成される。この実施例のライニング部材１２は、高密度ポリエチレン樹脂によって形成される。なお、止水部材２８は、共押出により基体２０の長手方向の全長に亘って設けられる。 Such a lining member 12 is integrally formed by extrusion molding of synthetic resin such as polyethylene resin, polypropylene resin, nylon resin, fluororesin, and rigid polyvinyl chloride resin. The first fitting portion 22 (first ridge 24 and second ridge 26), displacement absorbing portion 30, and ridge 34 are formed over the entire longitudinal length of the base body 20. The lining member 12 of this embodiment is formed from high-density polyethylene resin. The water-stopping member 28 is provided over the entire longitudinal length of the base body 20 by co-extrusion.

図５および図６に示すように、連結部材１４は、ライニング部材１２の側縁部どうしを連結するための長尺の部材であって、帯板状の基体４０（連結基体）を備える。基体４０の幅は、たとえば２２ｍｍであり、基体４０の厚みは、たとえば３ｍｍである。 As shown in Figures 5 and 6, the connecting member 14 is a long member for connecting the side edges of the lining member 12, and includes a strip-shaped base body 40 (connecting base body). The width of the base body 40 is, for example, 22 mm, and the thickness of the base body 40 is, for example, 3 mm.

基体４０の一方主面４０ａは、ライニング部材１２の基体２０の他方主面２０ｂに対向する面であり、この基体４０の一方主面４０ａの両側部には、ライニング部材１２の第１嵌合部２２と嵌め合わされる第２嵌合部４２が形成される。第２嵌合部４２は、基体４０の長手方向に延びる突条であって、この第２嵌合部４２の一方側面（基体４０の幅方向における内側の面）の先端部には、ライニング部材１２の第１係止片２４ａと係合される第２係止片４２ａが形成される。 One main surface 40a of the base 40 is the surface facing the other main surface 20b of the base 20 of the lining member 12, and a second fitting portion 42 that fits into the first fitting portion 22 of the lining member 12 is formed on both sides of the one main surface 40a of the base 40. The second fitting portion 42 is a protrusion extending in the longitudinal direction of the base 40, and a second locking piece 42a that engages with the first locking piece 24a of the lining member 12 is formed at the tip of one side surface of the second fitting portion 42 (the inner surface in the width direction of the base 40).

このような連結部材１４は、たとえば、ポリエチレン樹脂、ポリプロピレン樹脂、ナイロン樹脂、フッ素樹脂および硬質塩化ビニル樹脂などの合成樹脂の押出成形によって一体成形される。この実施例の連結部材１４は、高密度ポリエチレン樹脂によって形成され、第２嵌合部４２は、基体４０の長手方向の全長に亘って形成される。 Such a connecting member 14 is integrally molded by extrusion molding of a synthetic resin such as polyethylene resin, polypropylene resin, nylon resin, fluororesin, and rigid polyvinyl chloride resin. In this embodiment, the connecting member 14 is formed from high-density polyethylene resin, and the second fitting portion 42 is formed over the entire length of the base body 40 in the longitudinal direction.

図７および図８に示すように、補強部材１６は、ライニング部材１２の連結部分、つまりライニング部材１２の側縁部どうしを連結部材１４で連結した部分を補強するための長尺の部材であって、補強基体５０を備える。補強基体５０は、帯板状の天壁５２と天壁５２の両側縁部から延出される一対の帯板状の側壁５４とを含む溝状（半角筒状）に形成される。天壁５２の一方主面５２ａは、ライニング部材１２の基体２０の他方主面２０ｂに対向する面であり、側壁５４のそれぞれは、天壁５２の両側縁部からライニング部材１２側に向かうように、天壁５２と直交する方向に延びる。つまり、補強基体５０は、ライニング部材１２側に向かって開口する溝状に形成される。 7 and 8, the reinforcing member 16 is a long member for reinforcing the connecting portion of the lining member 12, that is, the portion where the side edges of the lining member 12 are connected by the connecting member 14, and includes a reinforcing base 50. The reinforcing base 50 is formed in a groove shape (half-square tube shape) including a strip-shaped top wall 52 and a pair of strip-shaped side walls 54 extending from both side edges of the top wall 52. One main surface 52a of the top wall 52 is a surface facing the other main surface 20b of the base 20 of the lining member 12, and each of the side walls 54 extends in a direction perpendicular to the top wall 52 so as to face the lining member 12 side from both side edges of the top wall 52. In other words, the reinforcing base 50 is formed in a groove shape that opens toward the lining member 12 side.

また、各側壁５４の先端部、つまり補強基体５０の開口縁部のそれぞれには、ライニング部材１２との嵌合部である延出部５６が形成される。この実施例では、延出部５６は、側壁５４の先端部から補強基体５０の幅方向内側に向かって延出されている。延出部５６は、側壁５４の先端部から屈曲して天壁５２と平行に延びる第１片５６ａと、第１片５６ａの先端部から屈曲して天壁５２側に向かって斜め方向に延びる第２片５６ｂとを含む。この延出部５６の第２片５６ｂの先端部は、ライニング部材１２の係止部（爪部３４ａ）によって係止される被係止部として機能する。 In addition, an extension 56 that fits with the lining member 12 is formed at the tip of each side wall 54, i.e., at each of the opening edges of the reinforcing base 50. In this embodiment, the extension 56 extends from the tip of the side wall 54 toward the inside of the reinforcing base 50 in the width direction. The extension 56 includes a first piece 56a that bends from the tip of the side wall 54 and extends parallel to the top wall 52, and a second piece 56b that bends from the tip of the first piece 56a and extends diagonally toward the top wall 52. The tip of the second piece 56b of this extension 56 functions as a locked portion that is locked by the locking portion (claw portion 34a) of the lining member 12.

補強部材１６の材質は、特に限定されないが、高剛性を有する等の観点から、スチール、ステンレス、チタンおよびアルミニウム合金などの金属であることが好ましい。この実施例では、帯板状のスチール材（鋼板）を上記形状に屈曲加工することによって、補強部材１６が形成される。補強部材１６の厚みは、たとえば１.６ｍｍである。また、補強部材１６の幅（天壁５２の幅）は、連結部材１４の幅（基体４０の幅）よりも大きく設定され、たとえば５０ｍｍである。さらに、補強部材１６の高さ寸法（側壁５４の高さ寸法）は、連結部材１４の高さ寸法よりも大きく設定され、たとえば２０ｍｍである。このような補強部材１６は、ライニング部材１２の連結部分の全長に亘って取り付けられる。 The material of the reinforcing member 16 is not particularly limited, but is preferably a metal such as steel, stainless steel, titanium, or aluminum alloy from the viewpoint of high rigidity. In this embodiment, the reinforcing member 16 is formed by bending a strip-shaped steel material (steel plate) into the above-mentioned shape. The thickness of the reinforcing member 16 is, for example, 1.6 mm. The width of the reinforcing member 16 (width of the top wall 52) is set larger than the width of the connecting member 14 (width of the base 40), for example, 50 mm. The height dimension of the reinforcing member 16 (height dimension of the side wall 54) is set larger than the height dimension of the connecting member 14, for example, 20 mm. Such a reinforcing member 16 is attached over the entire length of the connecting portion of the lining member 12.

図２と共に図９および図１０を参照して、上述のような管更生部材１０を用いて螺旋管２０２を形成するときには、螺旋状に巻き回したライニング部材１２の隣り合う側縁部どうしを連結部材１４によって連結すると共に、連結部材１４を含むライニング部材１２の連結部分を跨いで覆うようにライニング部材１２に補強部材１６を取り付ける。 Referring to Figures 9 and 10 as well as Figure 2, when forming a helical pipe 202 using the pipe rehabilitation member 10 as described above, adjacent side edges of the helically wound lining member 12 are connected to each other by a connecting member 14, and a reinforcing member 16 is attached to the lining member 12 so as to straddle and cover the connecting portion of the lining member 12 including the connecting member 14.

簡単に説明すると、ライニング部材１２の側縁部どうしを連結部材１４によって連結する際には、ライニング部材１２の基体２０の一方主面２０ａどうしが面一となるように、基体２０の側縁どうしを突き合わせた状態にする。そして、螺旋状に巻き回したライニング部材１２の外面側から連結部材１４を押し込むようにして、ライニング部材１２の第１嵌合部２２に対して連結部材１４の第２嵌合部４２を長手方向（螺旋方向）に順次嵌め合わせていく。すると、第１嵌合部２２の第１突条２４と第２突条２６との間に第２嵌合部４２が挟持されると共に、第１突条２４の第１係止片２４ａと第２嵌合部４２の第２係止片４２ａとが係合されて、ライニング部材１２の側縁部どうしが連結部材１４によって連結される。 To put it simply, when connecting the side edges of the lining member 12 with the connecting member 14, the side edges of the base 20 of the lining member 12 are butted together so that the main surfaces 20a of the base 20 are flush with each other. Then, the connecting member 14 is pushed in from the outer surface side of the spirally wound lining member 12, and the second fitting portion 42 of the connecting member 14 is fitted sequentially in the longitudinal direction (spiral direction) to the first fitting portion 22 of the lining member 12. Then, the second fitting portion 42 is sandwiched between the first protrusion 24 and the second protrusion 26 of the first fitting portion 22, and the first locking piece 24a of the first protrusion 24 and the second locking piece 42a of the second fitting portion 42 are engaged, and the side edges of the lining member 12 are connected by the connecting member 14.

また、ライニング部材１２の連結部分に補強部材１６を取り付ける際には、ライニング部材１２の隣り合う側縁部どうしを架け渡すようにライニング部材１２の外面側から補強部材１６を押し込んで、ライニング部材１２の突条３４に対して補強部材１６の延出部５６を長手方向（螺旋方向）に順次嵌め合わせていく。すると、補強部材１６の延出部５６の先端部がライニング部材１２の爪部３４ａによって係止されて、連結部材１４を含むライニング部材１２の連結部分を跨いで覆うように、ライニング部材１２に補強部材１６が取り付けられる。 When attaching the reinforcing member 16 to the connecting portion of the lining member 12, the reinforcing member 16 is pushed in from the outer surface side of the lining member 12 so as to bridge the adjacent side edges of the lining member 12, and the extension portion 56 of the reinforcing member 16 is sequentially fitted in the longitudinal direction (helical direction) to the protrusion 34 of the lining member 12. Then, the tip of the extension portion 56 of the reinforcing member 16 is engaged by the claw portion 34a of the lining member 12, and the reinforcing member 16 is attached to the lining member 12 so as to straddle and cover the connecting portion of the lining member 12 including the connecting member 14.

次に、製管機６０の構成について具体的に説明する。なお、この明細書では、更生する既設管２００の軸方向を前後方向とし、製管機６０によって形成された螺旋管２０２が押し出される方向を前方向として製管機６０の前後方向と規定する。また、製管機６０の左右方向は、更生する既設管２００側（つまり前側）から製管機６０を見た状態を基準として規定する。 Next, the configuration of the pipe making machine 60 will be specifically described. In this specification, the axial direction of the existing pipe 200 to be rehabilitated is defined as the front-rear direction, and the direction in which the spiral pipe 202 formed by the pipe making machine 60 is pushed out is defined as the forward direction, and the front-rear direction of the pipe making machine 60 is defined as the forward direction. In addition, the left-right direction of the pipe making machine 60 is defined based on the state when the pipe making machine 60 is viewed from the side of the existing pipe 200 to be rehabilitated (i.e. the front side).

図１１－図１４に示すように、製管機６０は、ライニング部材１２を螺旋状に巻き回すように案内する螺旋巻きガイド装置６２を備える。この螺旋巻きガイド装置６２には、ライニング部材送り装置６４、連結部材ガイド装置６６、補強部材送り曲げ装置６８、連結装置７０、取付装置７２および脚部７４などが取り付けられる。 As shown in Figures 11 to 14, the pipe making machine 60 is equipped with a spiral winding guide device 62 that guides the lining member 12 so that it is wound in a spiral shape. This spiral winding guide device 62 is equipped with a lining member feed device 64, a connecting member guide device 66, a reinforcing member feed and bending device 68, a connecting device 70, an attachment device 72, and legs 74.

螺旋巻きガイド装置６２に対する各装置６４,６６,６８,７０,７２の配置態様（周方向位置）は、特に限定されないが、取付装置７２は、螺旋巻きガイド装置６２（製管機６０）の頂部に配置されることが好ましい。また、ライニング部材送り装置６４、連結部材ガイド装置６６および補強部材送り曲げ装置６８における各部材１２,１４,１６の導入部（入り口）は、製管機６０の上半部であってかつ取付装置７２の左右どちらかの一方側（つまり片側）にまとめて配置することが好ましい。さらに、連結装置７０は、製管機６０の上半部であってかつ取付装置７２の左右どちらかの他方側、つまり取付装置７２を間に挟む各装置６４,６６,６８の導入部と反対側に配置されることが好ましい。これにより、製管機６０全体として横幅を小さくでき、狭いマンホール２１０内にも製管機６０を好適に設置することができる。 The arrangement (circumferential position) of each device 64, 66, 68, 70, 72 relative to the spiral winding guide device 62 is not particularly limited, but the attachment device 72 is preferably arranged at the top of the spiral winding guide device 62 (pipe making machine 60). In addition, the introduction parts (entrances) of each member 12, 14, 16 in the lining member feed device 64, the connecting member guide device 66, and the reinforcing member feed bending device 68 are preferably arranged together in the upper half of the pipe making machine 60 on one side (i.e., one side) of the attachment device 72, either to the left or right. Furthermore, the connecting device 70 is preferably arranged in the upper half of the pipe making machine 60 on the other side (i.e., the opposite side) of the introduction parts of each device 64, 66, 68 sandwiching the attachment device 72. This allows the width of the pipe making machine 60 as a whole to be reduced, and the pipe making machine 60 can be suitably installed even in a narrow manhole 210.

この実施例では、取付装置７２は、螺旋巻きガイド装置６２の頂部（つまり０時方向）付近に配置される。また、更生する既設管２００側から製管機６０を見て、ライニング部材送り装置６４、連結部材ガイド装置６６および補強部材送り曲げ装置６８の各部材の導入部は、螺旋巻きガイド装置６２の頂部から反時計回りに４５度の周方向位置（つまり１０半時方向）付近に配置される。さらに、連結装置７０は、螺旋巻きガイド装置６２の頂部から時計回りに４５度の周方向位置（つまり１時半方向）付近に配置される。 In this embodiment, the attachment device 72 is disposed near the top of the spiral winding guide device 62 (i.e., the 0 o'clock direction). Also, when looking at the pipe making machine 60 from the side of the existing pipe 200 to be rehabilitated, the introduction points of each of the lining member feed device 64, the connecting member guide device 66, and the reinforcing member feed and bending device 68 are disposed near a circumferential position 45 degrees counterclockwise from the top of the spiral winding guide device 62 (i.e., the 10:30 direction). Furthermore, the connecting device 70 is disposed near a circumferential position 45 degrees clockwise from the top of the spiral winding guide device 62 (i.e., the 1:30 direction).

図１５および図１６に示すように、螺旋巻きガイド装置６２は、ライニング部材１２を螺旋状に巻き回すように案内する複数の外側ガイドローラ８０と、これら複数の外側ガイドローラ８０を保持する円筒状のフレーム部材８２とを備える。フレーム部材８２は、ステンレス鋼などの金属によって形成され、円筒部８２ａ、円筒部８２ａの前端縁から外方に突出する第１環状板部８２ｂ、および円筒部８２ａの後端縁から内方に突出する第２環状板部８２ｃを有する。 As shown in Figures 15 and 16, the spiral winding guide device 62 includes a plurality of outer guide rollers 80 that guide the lining member 12 so as to wind it in a spiral shape, and a cylindrical frame member 82 that holds the plurality of outer guide rollers 80. The frame member 82 is formed of a metal such as stainless steel, and has a cylindrical portion 82a, a first annular plate portion 82b that protrudes outward from the front end edge of the cylindrical portion 82a, and a second annular plate portion 82c that protrudes inward from the rear end edge of the cylindrical portion 82a.

複数の外側ガイドローラ８０のそれぞれは、前後方向（つまりライニング部材１２の幅方向）に間隔をあけて設けられる一対のローラを含み、円筒部８２ａの内面側に取り付けられた回転軸に対して、深溝玉軸受などの軸受を介して回転自在に設けられる。一対のローラは金属製であり、その外周面は周方向において凹凸のない滑らかな円筒面になっている。また、複数の外側ガイドローラ８０は、円筒部８２ａの周方向（延いては既設管２００および螺旋管２０２の周方向）に間隔をあけて螺旋状に並ぶように設けられ、各外側ガイドローラ８０の軸方向は、フレーム部材８２の軸方向に対して所定の傾斜角で傾斜している。複数の外側ガイドローラ８０は、螺旋状に巻き回されるライニング部材１２の２周分（７２０度分）以上に亘るように配置されることが好ましく、この実施例では、ライニング部材１２の約３.４周分（約１２００度分）に亘るように配置される。 Each of the outer guide rollers 80 includes a pair of rollers spaced apart in the front-rear direction (i.e., the width direction of the lining member 12), and is rotatably mounted on a rotating shaft attached to the inner surface of the cylindrical portion 82a via a bearing such as a deep groove ball bearing. The pair of rollers is made of metal, and the outer peripheral surface is a smooth cylindrical surface without unevenness in the circumferential direction. The outer guide rollers 80 are arranged in a spiral shape at intervals in the circumferential direction of the cylindrical portion 82a (and thus in the circumferential direction of the existing pipe 200 and the spiral pipe 202), and the axial direction of each outer guide roller 80 is inclined at a predetermined inclination angle with respect to the axial direction of the frame member 82. The outer guide rollers 80 are preferably arranged over at least two revolutions (720 degrees) of the lining member 12 that is wound in a spiral shape, and in this embodiment, they are arranged over approximately 3.4 revolutions (approximately 1200 degrees) of the lining member 12.

外側ガイドローラ８０どうしの前後方向の間隔Ｗ１は、螺旋状に巻き回したライニング部材１２の基体２０の側縁どうしを突き合わすことができるように、ライニング部材１２の基体２０の幅と同じ大きさに設定される。また、各外側ガイドローラ８０が備える一対のローラの前後方向の間隔Ｗ２は、一対のローラのそれぞれがライニング部材１２の突条３４と変位吸収部３０との間に入り込んで基体２０の他方主面２０ｂに当接可能な間隔に設定される。ただし、連結装置７０および取付装置７２等と干渉する位置や螺旋巻きガイド装置６２の前側部分においては、外側ガイドローラ８０が備える一対のローラのうちの一方のローラが省略されたり、外側ガイドローラ８０どうしの周方向間隔が変更されたりする。 The front-rear distance W1 between the outer guide rollers 80 is set to the same size as the width of the base body 20 of the lining member 12 so that the side edges of the base body 20 of the lining member 12 wound in a spiral shape can be butted against each other. The front-rear distance W2 between the pair of rollers of each outer guide roller 80 is set to a distance that allows each of the pair of rollers to enter between the protrusion 34 of the lining member 12 and the displacement absorbing portion 30 and abut against the other main surface 20b of the base body 20. However, in positions that interfere with the connecting device 70 and the mounting device 72, etc., or in the front part of the spiral winding guide device 62, one of the pair of rollers of the outer guide rollers 80 is omitted, or the circumferential distance between the outer guide rollers 80 is changed.

このような複数の外側ガイドローラ８０は、隣り合う基体２０の側縁どうしを突き当てながら螺旋状に巻き回すように、ライニング部材１２を案内する。外側ガイドローラ８０を螺旋状に並べて配置することで、ライニング部材１２を適切に螺旋状に案内することができ、外側ガイドローラ８０を構成する一対のローラのそれぞれがライニング部材１２の突条３４と変位吸収部３０との間に入り込むことで、螺旋管２０２の軸方向におけるライニング部材１２の位置決めを自動的に実行できる。特に、隣り合う基体２０の側縁どうしを突き当てることで、螺旋管２０２の軸方向におけるライニング部材１２の位置決めをより適切に実行できる。 These multiple outer guide rollers 80 guide the lining member 12 so that it winds in a spiral shape while butting the side edges of adjacent base bodies 20 against each other. By arranging the outer guide rollers 80 in a spiral shape, the lining member 12 can be appropriately guided in a spiral shape, and each of the pair of rollers constituting the outer guide roller 80 can be inserted between the protrusion 34 of the lining member 12 and the displacement absorbing section 30, so that the positioning of the lining member 12 in the axial direction of the helical tube 202 can be automatically performed. In particular, by butting the side edges of adjacent base bodies 20 against each other, the positioning of the lining member 12 in the axial direction of the helical tube 202 can be more appropriately performed.

また、複数の外側ガイドローラ８０は、螺旋状に巻き回されたライニング部材１２の基体２０の他方主面２０ｂ（つまりライニング部材１２の外面）と当接することで、螺旋管２０２の外径を規定する。これによって、螺旋管２０２を外径基準で一定の大きさに形成することができる。さらに、複数の外側ガイドローラ８０のそれぞれは、一対のローラの前側面がライニング部材１２の第１嵌合部２２または連結部材１４の後側面と当接することで、形成した螺旋管２０２を前方（既設管２００側）に向かって押し出す。複数の外側ガイドローラ８０のそれぞれが螺旋管２０２を押すことで、押出力を大きくすることができ、螺旋管２０２を適切に既設管２００内に押し出すことができる。 The outer guide rollers 80 also contact the other main surface 20b (i.e., the outer surface of the lining member 12) of the base 20 of the lining member 12, which is wound in a spiral shape, to determine the outer diameter of the spiral tube 202. This allows the spiral tube 202 to be formed to a constant size based on the outer diameter. Furthermore, each of the outer guide rollers 80 pushes the formed spiral tube 202 forward (toward the existing pipe 200) by the front side of the pair of rollers contacting the first fitting portion 22 of the lining member 12 or the rear side of the connecting member 14. By each of the outer guide rollers 80 pushing the spiral tube 202, the pushing force can be increased, and the spiral tube 202 can be appropriately pushed into the existing pipe 200.

また、図１６からよく分かるように、フレーム部材８２の円筒部８２ａには、各装置６４,６６,６８,７０を取り付けたり、各部材１２,１４,１６を円筒部８２ａ内（螺旋巻きガイド装置６２内）に導いたりするための開口部が形成される。具体的には、既設管２００側から製管機６０を見て１０時方向付近であって、最も上流側に配置される外側ガイドローラ８０の上流側には、ライニング部材送り装置６４が嵌め込まれる第１開口部８２ｄが形成される。この第１開口部８２ｄは、螺旋巻きガイド装置６２内へのライニング部材１２の入口となる。また、既設管２００側から製管機６０を見て２時半方向付近であって、最も上流側から約半周後と約１周半後に配置される外側ガイドローラ８０の間には、連結部材ガイド装置６６の下流側端部が嵌め込まれる第２開口部８２ｅが形成される。この第２開口部８２ｅは、螺旋巻きガイド装置６２内への連結部材１４の入口となる。さらに、既設管２００側から製管機６０を見て１時半方向付近であって、第２開口部８２ｅの下流側には、連結装置７０が嵌め込まれる第３開口部８２ｆが形成される。さらにまた、既設管２００側から製管機６０を見て３時方向付近であって、最も上流側から約２周半後に配置される外側ガイドローラ８０の前側には、螺旋巻きガイド装置６２内への補強部材１６の入口になると共に、補強部材送り曲げ装置６８の押し込みローラ９４が嵌め込まれる第４開口部８２ｇが形成される。また、既設管２００側から製管機６０を見て０時方向付近であって、第４開口部８２ｇの下流側には、取付装置７２が嵌め込まれる第５開口部８２ｈが形成される。 As can be seen clearly from FIG. 16, the cylindrical portion 82a of the frame member 82 has openings for mounting the devices 64, 66, 68, 70 and for guiding the members 12, 14, 16 into the cylindrical portion 82a (into the spiral winding guide device 62). Specifically, a first opening 82d into which the lining member feed device 64 is fitted is formed upstream of the outer guide roller 80 located at the most upstream side, near the 10 o'clock direction when looking at the pipe making machine 60 from the existing pipe 200 side. This first opening 82d serves as the entrance of the lining member 12 into the spiral winding guide device 62. A second opening 82e into which the downstream end of the connecting member guide device 66 is fitted is formed between the outer guide rollers 80 located about half a turn and about one and a half turns from the most upstream side, near the 2:30 direction when looking at the pipe making machine 60 from the existing pipe 200 side. This second opening 82e is the entrance of the connecting member 14 into the spiral winding guide device 62. Furthermore, a third opening 82f into which the connecting device 70 is fitted is formed downstream of the second opening 82e, near the 1:30 direction when looking at the pipe making machine 60 from the existing pipe 200 side. Furthermore, a fourth opening 82g is formed in front of the outer guide roller 80, which is located approximately two and a half revolutions behind the most upstream side, near the 3:00 direction when looking at the pipe making machine 60 from the existing pipe 200 side, and which is the entrance of the reinforcing member 16 into the spiral winding guide device 62 and into which the push-in roller 94 of the reinforcing member feed bending device 68 is fitted. Furthermore, a fifth opening 82h into which the mounting device 72 is fitted is formed downstream of the fourth opening 82g, near the 0:00 direction when looking at the pipe making machine 60 from the existing pipe 200 side.

図１７－図２１に示すように、ライニング部材送り装置６４は、地上から供給されるライニング部材１２を螺旋巻きガイド装置６２内に送り込む装置であって、送り装置本体８４、４方向ガイドローラ８６および座屈防止ガイドローラ群８８などを備える。ライニング部材送り装置６４は、ボルト等の締結部材を用いて螺旋巻きガイド装置６２のフレーム部材８２に固定される。この際、座屈防止ガイドローラ群８８は、フレーム部材８２の第１開口部８２ｄに嵌め入れられる。 As shown in Figures 17 to 21, the lining member feed device 64 is a device that feeds the lining member 12 supplied from the ground into the spiral winding guide device 62, and includes a feed device main body 84, a four-way guide roller 86, and a group of buckling prevention guide rollers 88. The lining member feed device 64 is fixed to the frame member 82 of the spiral winding guide device 62 using fastening members such as bolts. At this time, the group of buckling prevention guide rollers 88 is fitted into the first opening 82d of the frame member 82.

送り装置本体８４は、ライニング部材１２を厚み方向に挟み込むように設けられる一対のローラ、すなわちライニング部材送りローラ８４ａと反力受けローラ８４ｂとを備える。ライニング部材送りローラ８４ａは、ライニング部材１２の内面側（一方主面２０ａ側）に配置され、反力受けローラ８４ｂは、ライニング部材１２の外面側（他方主面２０ｂ側）に配置される。 The feed device main body 84 is equipped with a pair of rollers, i.e., a lining member feed roller 84a and a reaction force receiving roller 84b, which are arranged to sandwich the lining member 12 in the thickness direction. The lining member feed roller 84a is arranged on the inner surface side (one main surface 20a side) of the lining member 12, and the reaction force receiving roller 84b is arranged on the outer surface side (the other main surface 20b side) of the lining member 12.

ライニング部材送りローラ８４ａは、前後方向に延びるように、軸受を介して回転自在に設けられる。ライニング部材送りローラ８４ａは、金属製の円筒状の基体と、ウレタンゴム等の軟質材料で形成され、基体を覆うように設けられた外周部（表面層）とを有しており、その外周面は周方向において凹凸のない滑らかな円筒面になっている。このライニング部材送りローラ８４ａには、油圧モータ等のモータ８４ｃが接続される。ライニング部材送りローラ８４ａは、モータ８４ｃからの駆動力を受けて回転駆動され、ライニング部材１２の内面側（具体的には基体２０の一方主面２０ａ）を押圧しながら回転することで、ライニング部材１２に対して螺旋巻きガイド装置６２に向かう推進力を与える。 The lining member feed roller 84a is rotatably mounted via a bearing so as to extend in the front-rear direction. The lining member feed roller 84a has a cylindrical metal base body and an outer periphery (surface layer) formed of a soft material such as urethane rubber and provided to cover the base body, and the outer periphery is a smooth cylindrical surface without unevenness in the circumferential direction. A motor 84c such as a hydraulic motor is connected to the lining member feed roller 84a. The lining member feed roller 84a is driven to rotate by receiving a driving force from the motor 84c, and by rotating while pressing the inner surface side of the lining member 12 (specifically, one main surface 20a of the base body 20), a propulsive force is applied to the lining member 12 toward the spiral winding guide device 62.

一方、反力受けローラ８４ｂは、ライニング部材送りローラ８４ａと対向する位置において、軸受を介して回転自在に設けられる。反力受けローラ８４ｂは、金属製であって、その外周面はライニング部材１２の外面側の形状に合わせた形状に形成される。この実施例では、ライニング部材１２の外面側は、突条３４が最も突出するように形成されているので、反力受けローラ８４ｂの外周面には、突条３４の先端部を嵌め入れ可能な環状溝が形成される。反力受けローラ８４ｂは、ライニング部材送りローラ８４ａの回転駆動（ライニング部材１２の搬送）に伴い、ライニング部材１２の外面側を押圧しながら従動回転する。また、環状溝内に突条３４の先端部が嵌め入れられることで、ライニング部材１２の幅方向の移動が規制される。なお、ライニング部材送りローラ８４ａと反力受けローラ８４ｂとの配置を逆にして、駆動ローラであるライニング部材送りローラ８４ａが、ライニング部材１２の外面側を押圧するようにしてもよい。 On the other hand, the reaction force receiving roller 84b is rotatably provided via a bearing at a position opposite the lining member feed roller 84a. The reaction force receiving roller 84b is made of metal, and its outer circumferential surface is formed to match the shape of the outer surface side of the lining member 12. In this embodiment, the outer surface side of the lining member 12 is formed so that the protrusion 34 protrudes most, so that the outer circumferential surface of the reaction force receiving roller 84b is formed with an annular groove into which the tip of the protrusion 34 can be fitted. The reaction force receiving roller 84b rotates while pressing the outer surface side of the lining member 12 as the lining member feed roller 84a rotates (transport of the lining member 12). In addition, the tip of the protrusion 34 is fitted into the annular groove, thereby restricting the movement of the lining member 12 in the width direction. The arrangement of the lining member feed roller 84a and the reaction force receiving roller 84b may be reversed so that the lining member feed roller 84a, which is the driving roller, presses against the outer surface of the lining member 12.

４方向ガイドローラ８６は、ライニング部材送り装置６４におけるライニング部材１２の導入部であって、ライニング部材１２の送り方向における送り装置本体８４の上流側に設けられる。４方向ガイドローラ８６は、ライニング部材１２の内外面および両側面を囲むように回転自在に設けられる少なくとも４つの規制ローラを有する。この実施例では、４方向ガイドローラ８６は、金属製であって、ライニング部材１２の送り方向に間隔をあけて設けられた２つの厚み方向規制用のローラ対８６ａと、これらローラ対８６ａの間に設けられた幅方向規制用のローラ対８６ｂとを含む。このような４方向ガイドローラ８６は、ライニング部材１２の厚み方向および幅方向への移動を規制しつつ、ライニング部材１２をライニング部材送りローラ８４ａと反力受けローラ８４ｂとの間に案内する。このような４方向ガイドローラ８６を備えることにより、ライニング部材送りローラ８４ａと反力受けローラ８４ｂとの間にライニング部材１２をスムーズに導くことができる。 The four-way guide roller 86 is an introduction portion of the lining member 12 in the lining member feed device 64, and is provided upstream of the feed device body 84 in the feed direction of the lining member 12. The four-way guide roller 86 has at least four regulating rollers that are rotatably provided so as to surround the inner and outer surfaces and both side surfaces of the lining member 12. In this embodiment, the four-way guide roller 86 is made of metal and includes two pairs of rollers 86a for regulating the thickness direction that are provided at an interval in the feed direction of the lining member 12, and a pair of rollers 86b for regulating the width direction that are provided between these pairs of rollers 86a. Such a four-way guide roller 86 guides the lining member 12 between the lining member feed roller 84a and the reaction force receiving roller 84b while regulating the movement of the lining member 12 in the thickness direction and width direction. By providing such a four-way guide roller 86, the lining member 12 can be smoothly guided between the lining member feed roller 84a and the reaction force receiving roller 84b.

座屈防止ガイドローラ群８８は、ライニング部材１２の送り方向における送り装置本体８４の下流側に設けられる。座屈防止ガイドローラ群８８は、ライニング部材１２を外面側および内面側から挟み込むように回転自在に設けられた複数のローラ対８８ａを備える。この実施例では、ローラ対８８ａのそれぞれは、金属製であって、ライニング部材１２の幅方向両端部に対応する位置に配置される一対のローラ８８ｂによって構成される。つまり、ローラ対８８ａは、ライニング部材１２の幅方向両端部を外面側および内面側から挟み込むように設けられた４つのローラ８８ｂを含む。そして、これら複数のローラ対８８ａは、ライニング部材送りローラ８４ａと螺旋巻きガイド装置６２の最も上流側に配置される外側ガイドローラ８０との間を結ぶように、ライニング部材１２の送り方向に沿って直線状に並んで配置される。また、座屈防止ガイドローラ群８８の下流側端部には、ローラ対８８ａを囲繞するように設けられる矩形枠状の規制フレーム８８ｃが設けられる。このような座屈防止ガイドローラ群８８は、複数のローラ対８８ａによってライニング部材１２の厚み方向への移動を規制しながら、ライニング部材１２を螺旋巻きガイド装置６２内に案内する。また、ライニング部材１２の幅方向への移動は、規制フレーム８８ｃによって規制される。このような座屈防止ガイドローラ群８８を備えることにより、ライニング部材１２の座屈を防止しつつ、螺旋巻きガイド装置６２内にライニング部材１２をスムーズに導くことができる。 The buckling prevention guide roller group 88 is provided downstream of the feed device main body 84 in the feed direction of the lining member 12. The buckling prevention guide roller group 88 includes a plurality of roller pairs 88a rotatably arranged to sandwich the lining member 12 from the outer surface side and the inner surface side. In this embodiment, each of the roller pairs 88a is made of metal and is composed of a pair of rollers 88b arranged at positions corresponding to both ends of the lining member 12 in the width direction. In other words, the roller pair 88a includes four rollers 88b arranged to sandwich both ends of the lining member 12 in the width direction from the outer surface side and the inner surface side. These multiple roller pairs 88a are arranged in a straight line along the feed direction of the lining member 12 so as to connect between the lining member feed roller 84a and the outer guide roller 80 arranged at the most upstream side of the spiral winding guide device 62. In addition, a rectangular frame-shaped regulating frame 88c is provided at the downstream end of the buckling prevention guide roller group 88 so as to surround the roller pairs 88a. Such a buckling prevention guide roller group 88 guides the lining member 12 into the spiral winding guide device 62 while restricting the movement of the lining member 12 in the thickness direction by multiple roller pairs 88a. In addition, the movement of the lining member 12 in the width direction is restricted by a restricting frame 88c. By providing such a buckling prevention guide roller group 88, the lining member 12 can be smoothly guided into the spiral winding guide device 62 while preventing the lining member 12 from buckling.

図２２に示すように、連結部材ガイド装置６６は、地上から供給される連結部材１４を連結装置７０内に案内する装置であって、ステンレス鋼などの金属によって筒状に形成される。連結部材ガイド装置６６は、連結部材１４を受け入れる導入部６６ａ（上流側端部）が１０時半方向付近に設けられる。そして、連結部材ガイド装置６６は、螺旋巻きガイド装置６２が備えるフレーム部材８２の円筒部８２ａの下半部外側を通って連結装置７０の近傍位置まで延び、その出口部６６ｂ（下流側端部）は、フレーム部材８２の第２開口部８２ｅに嵌め込まれる。また、出口部６６ｂの上流側には、フレーム部材８２の径方向外側に向かって膨らむ膨出部６６ｃが形成され、出口部６６ｂは、ライニング部材１２の嵌合位置における接線方向に沿って直線状に延びる。 22, the connecting member guide device 66 is a device that guides the connecting member 14 supplied from the ground into the connecting device 70, and is formed in a cylindrical shape from a metal such as stainless steel. The connecting member guide device 66 has an introduction section 66a (upstream end) that receives the connecting member 14, which is provided near the 10:30 direction. The connecting member guide device 66 passes through the outside of the lower half of the cylindrical section 82a of the frame member 82 provided in the spiral winding guide device 62 and extends to a position near the connecting device 70, and its outlet section 66b (downstream end) is fitted into the second opening 82e of the frame member 82. In addition, a bulge section 66c that bulges toward the radial outside of the frame member 82 is formed on the upstream side of the outlet section 66b, and the outlet section 66b extends linearly along the tangent direction at the fitting position of the lining member 12.

このような連結部材ガイド装置６６を備えることで、連結装置７０まで連結部材１４をスムーズに導くことができ、連結装置７０においてライニング部材１２の側縁部どうしを連結部材１４によって適切に連結できる。また、連結部材ガイド装置６６を筒状に形成することで、連結部材１４がマンホール２１０内の水と接触して汚れてしまうことや、連結部材１４に削りカス等のごみが付着することが防止される。 Providing such a connecting member guide device 66 allows the connecting member 14 to be smoothly guided to the connecting device 70, and allows the side edges of the lining member 12 to be properly connected to each other by the connecting member 14 at the connecting device 70. In addition, forming the connecting member guide device 66 into a cylindrical shape prevents the connecting member 14 from coming into contact with water inside the manhole 210 and becoming dirty, and prevents debris such as shavings from adhering to the connecting member 14.

図２３に示すように、補強部材送り曲げ装置６８は、地上から供給される補強部材１６を取付装置７２へ案内搬送しながら、補強部材１６の曲げ成形を予備的に行う装置である。補強部材送り曲げ装置６８は、補強部材送り装置９０、曲げローラ群９２および押し込みローラ９４等を備える。補強部材送り曲げ装置６８は、ボルト等の締結部材を用いて、螺旋巻きガイド装置６２のフレーム部材８２に固定される。この際、曲げローラ群９２は、フレーム部材８２の円筒部８２ａの下半部外周面に沿うように配置される。 As shown in FIG. 23, the reinforcing member feed bending device 68 is a device that guides and transports the reinforcing member 16 supplied from the ground to the mounting device 72 while preliminarily bending the reinforcing member 16. The reinforcing member feed bending device 68 includes a reinforcing member feed device 90, a bending roller group 92, and a push-in roller 94. The reinforcing member feed bending device 68 is fixed to the frame member 82 of the spiral winding guide device 62 using a fastening member such as a bolt. At this time, the bending roller group 92 is arranged so as to follow the outer peripheral surface of the lower half of the cylindrical portion 82a of the frame member 82.

補強部材送り装置９０は、補強部材１６を曲げローラ群９２（延いては取付装置７２）に送り込む装置であって、補強部材１６を厚み方向に挟み込むように設けられる一対のローラ、すなわち補強部材送りローラ９０ａと反力受けローラ９０ｂとを備える。補強部材送りローラ９０ａは、補強部材１６の外面側に配置され、反力受けローラ９０ｂは、補強部材の内面側に配置される。 The reinforcing member feed device 90 is a device that feeds the reinforcing member 16 into the bending roller group 92 (and thus the mounting device 72), and is equipped with a pair of rollers that are arranged to sandwich the reinforcing member 16 in the thickness direction, that is, a reinforcing member feed roller 90a and a reaction force receiving roller 90b. The reinforcing member feed roller 90a is arranged on the outer surface side of the reinforcing member 16, and the reaction force receiving roller 90b is arranged on the inner surface side of the reinforcing member.

補強部材送りローラ９０ａは、前後方向に延びるように、軸受を介して回転自在に設けられる。補強部材送りローラ９０ａ、金属製であって、その両端部の外周面には、補強部材１６の幅方向への移動を規制する鍔状の規制部が形成される。一方、反力受けローラ９０ｂは、補強部材送りローラ９０ａと対向する位置において、軸受を介して回転自在に設けられる。この反力受けローラ９０ｂには、油圧モータ等のモータ９０ｃ（図１３参照）が接続される。また、補強部材送りローラ９０ａは、ギア列９０ｄを介して反力受けローラ９０ｂと連結されており、補強部材送りローラ９０ａおよび反力受けローラ９０ｂは、モータ９０ｃからの駆動力を受けて回転駆動される。そして、補強部材送りローラ９０ａおよび反力受けローラ９０ｂは、補強部材１６の内外面を押圧しながら回転することで、補強部材１６に対して取付装置７２に向かう推進力を与える。また、補強部材送りローラ９０ａは、反力受けローラ９０ｂに対して離接する方向に移動可能に設けられており、補強部材送りローラ９０ａとの間隔を調整可能である。 The reinforcing member feed roller 90a is rotatably mounted via a bearing so as to extend in the front-rear direction. The reinforcing member feed roller 90a is made of metal, and a flange-shaped regulating portion that regulates the movement of the reinforcing member 16 in the width direction is formed on the outer peripheral surface of both ends of the reinforcing member feed roller 90a. On the other hand, the reaction force receiving roller 90b is rotatably mounted via a bearing at a position facing the reinforcing member feed roller 90a. A motor 90c (see FIG. 13), such as a hydraulic motor, is connected to the reaction force receiving roller 90b. The reinforcing member feed roller 90a is connected to the reaction force receiving roller 90b via a gear train 90d, and the reinforcing member feed roller 90a and the reaction force receiving roller 90b are rotated by receiving a driving force from the motor 90c. The reinforcing member feed roller 90a and the reaction force receiving roller 90b rotate while pressing the inner and outer surfaces of the reinforcing member 16, thereby providing the reinforcing member 16 with a propulsive force toward the mounting device 72. In addition, the reinforcing member feed roller 90a is movable in a direction away from the reaction force receiving roller 90b, and the distance between the reinforcing member feed roller 90a and the reaction force receiving roller 90b can be adjusted.

曲げローラ群９２は、補強部材１６の送り方向における補強部材送り装置９０の下流側に設けられ、補強部材１６を押し込みローラ９４に案内しながら円弧状に曲げる。曲げローラ群９２は、フレーム部材８２の円筒部８２ａの外周面に沿うように、補強部材１６の移動経路を形成する。曲げローラ群９２は、補強部材１６の内面側に当接する複数の内ローラ９２ａと、補強部材１６の外面側に当接する複数の外ローラ９２ｂとを備える。内ローラ９２ａおよび外ローラ９２ｂは、金属製であって、これらの軸方向は、外側ガイドローラ８０の軸方向と同じ方向（平行）である。曲げローラ群９２の配置範囲は、特に限定されないが、この実施例では、既設管２００側から製管機６０を見て１０時方向から４時半方向までの円筒部８２ａの約半周分に亘る範囲に曲げローラ群９２が配置される。この際、曲げローラ群９２の配置範囲における中央部分においては、内ローラ９２ａおよび外ローラ９２ｂのそれぞれの配置間隔を大きくとっても構わない。 The bending roller group 92 is provided downstream of the reinforcing member feed device 90 in the feed direction of the reinforcing member 16, and bends the reinforcing member 16 into an arc while guiding it to the push-in roller 94. The bending roller group 92 forms a movement path for the reinforcing member 16 so as to follow the outer circumferential surface of the cylindrical portion 82a of the frame member 82. The bending roller group 92 includes a plurality of inner rollers 92a that contact the inner surface side of the reinforcing member 16, and a plurality of outer rollers 92b that contact the outer surface side of the reinforcing member 16. The inner rollers 92a and the outer rollers 92b are made of metal, and their axial directions are the same direction (parallel) as the axial direction of the outer guide roller 80. The arrangement range of the bending roller group 92 is not particularly limited, but in this embodiment, the bending roller group 92 is arranged in a range covering approximately half the circumference of the cylindrical portion 82a from the 10 o'clock direction to the 4:30 direction when looking at the pipe making machine 60 from the existing pipe 200 side. In this case, in the central portion of the range in which the bending roller group 92 is arranged, the spacing between the inner rollers 92a and the outer rollers 92b may be large.

押し込みローラ９４は、フレーム部材８２の円筒部８２ａの外周面に沿って送られてきた補強部材１６を円筒部８２ａ内に押し込むローラである。押し込みローラ９４の軸方向は、外側ガイドローラ８０の軸方向と同じ方向（平行）である。押し込みローラ９４は、螺旋巻きガイド装置６２のフレーム部材８２の第４開口部８２ｇに嵌め込まれ、押し込みローラ９４の一部は、フレーム部材８２の円筒部８２ａ内に突出する。また、押し込みローラ９４は、円筒部８２ａ（つまり螺旋管２０２）の径方向に移動可能に設けられており、補強部材１６の押し込み量を調整可能である。 The push-in roller 94 is a roller that pushes the reinforcing member 16, which has been fed along the outer circumferential surface of the cylindrical portion 82a of the frame member 82, into the cylindrical portion 82a. The axial direction of the push-in roller 94 is the same direction (parallel) as the axial direction of the outer guide roller 80. The push-in roller 94 is fitted into the fourth opening 82g of the frame member 82 of the spiral winding guide device 62, and a part of the push-in roller 94 protrudes into the cylindrical portion 82a of the frame member 82. The push-in roller 94 is also provided so as to be movable in the radial direction of the cylindrical portion 82a (i.e., the spiral tube 202), and the amount of pushing of the reinforcing member 16 can be adjusted.

このような補強部材送り装置９０を備えることで、取付装置７２まで補強部材１６をスムーズに導くことができると共に、補強部材１６を予備的に曲げ成形することができる。したがって、取付装置７２においてライニング部材１２に補強部材１６を適切に取り付けることができる。 By providing such a reinforcing member feed device 90, the reinforcing member 16 can be smoothly guided to the mounting device 72 and can be preliminarily bent and shaped. Therefore, the reinforcing member 16 can be properly attached to the lining member 12 in the mounting device 72.

図２４－図２６に示すように、連結装置７０は、螺旋状に巻き回されたライニング部材１２の隣り合う側縁部どうしを連結する装置である。この実施例では、連結装置７０は、ライニング部材１２の隣り合う側縁部どうしを突き当てて、ライニング部材１２の外面側から連結部材１４を嵌合させることで、ライニング部材１２の隣り合う側縁部どうしを連結する。 As shown in Figures 24-26, the connecting device 70 is a device that connects adjacent side edges of the spirally wound lining member 12. In this embodiment, the connecting device 70 connects adjacent side edges of the lining member 12 by butting the adjacent side edges of the lining member 12 against each other and engaging the connecting member 14 from the outer surface side of the lining member 12.

具体的には、連結装置７０は、連結部材１４を含むライニング部材１２の連結部分を厚み方向に挟み込むように設けられる一対のローラ、すなわち嵌合ローラ１００と反力受けローラ１０２とを備える。連結装置７０は、ボルト等の締結部材を用いて螺旋巻きガイド装置６２のフレーム部材８２に固定される。この際、嵌合ローラ１００は、螺旋巻きガイド装置６２のフレーム部材８２の第３開口部８２ｆに嵌め込まれ、嵌合ローラ１００の一部は、フレーム部材８２の円筒部８２ａ内に突出する。 Specifically, the connecting device 70 includes a pair of rollers, namely, an engagement roller 100 and a reaction force receiving roller 102, arranged to sandwich the connecting portion of the lining member 12 including the connecting member 14 in the thickness direction. The connecting device 70 is fixed to the frame member 82 of the spiral winding guide device 62 using a fastening member such as a bolt. At this time, the engagement roller 100 is fitted into the third opening 82f of the frame member 82 of the spiral winding guide device 62, and a part of the engagement roller 100 protrudes into the cylindrical portion 82a of the frame member 82.

嵌合ローラ１００および反力受けローラ１０２の軸方向は、外側ガイドローラ８０の軸方向と同じ方向（平行）である。また、嵌合ローラ１００および反力受けローラ１０２は、ライニング部材１２が螺旋巻きガイド装置６２のフレーム部材８２内に搬送されてから約０.６５周（約２２５度）の位置と約１.６５周（約５８５度）の位置とに跨る軸方向位置に設けられる。また、嵌合ローラ１００が配置される周方向位置の後方側には、外側ガイドローラ８０の１つが配置される。この外側ガイドローラ８０は、新たに嵌合されるライニング部材１２の外面と当接する。嵌合ローラ１００と同じ周方向位置に外側ガイドローラ８０を並べて配置することで、ライニング部材１２と連結部材１４との嵌合の安定性を高めることができる。 The axial direction of the engaging roller 100 and the reaction force receiving roller 102 is the same direction (parallel) as the axial direction of the outer guide roller 80. The engaging roller 100 and the reaction force receiving roller 102 are provided at axial positions spanning a position of about 0.65 revolutions (about 225 degrees) and a position of about 1.65 revolutions (about 585 degrees) after the lining member 12 is transported into the frame member 82 of the spiral winding guide device 62. One of the outer guide rollers 80 is provided behind the circumferential position where the engaging roller 100 is provided. This outer guide roller 80 abuts against the outer surface of the lining member 12 to be newly fitted. By arranging the outer guide roller 80 side by side at the same circumferential position as the engaging roller 100, the stability of the engagement between the lining member 12 and the connecting member 14 can be increased.

嵌合ローラ１００は、金属製であり、連結部材１４の外面側と当接するように、軸受を介して回転自在に設けられる。また、嵌合ローラ１００の外周面には、滑り止め加工が施されている。この実施例では、嵌合ローラ１００の外周面は、複数の細かな凹凸が形成された粗面状に形成される。この滑り止め加工によって、嵌合ローラ１００と連結部材１４との間に滑りが生じることなく、嵌合ローラ１００の回転駆動力が連結部材１４（延いては螺旋管２０２）に適切に伝達される。ただし、嵌合ローラ１００が連結部材１４との間で滑りが生じない材料で形成されている場合などには、嵌合ローラ１００の外周面に必ずしも滑り止め加工を施す必要はない。 The engaging roller 100 is made of metal and is rotatably mounted via a bearing so as to abut against the outer surface of the connecting member 14. The outer peripheral surface of the engaging roller 100 is also treated with an anti-slip treatment. In this embodiment, the outer peripheral surface of the engaging roller 100 is formed into a rough surface with multiple fine irregularities. This anti-slip treatment prevents slippage between the engaging roller 100 and the connecting member 14, and the rotational driving force of the engaging roller 100 is appropriately transmitted to the connecting member 14 (and thus the helical tube 202). However, in cases where the engaging roller 100 is made of a material that does not cause slippage between the engaging roller 100 and the connecting member 14, it is not necessarily necessary to apply an anti-slip treatment to the outer peripheral surface of the engaging roller 100.

また、嵌合ローラ１００には、ギア部１０４を介して油圧モータ等のモータ１０６が接続される。嵌合ローラ１００、ギア部１０４およびモータ１０６は、支持フレーム１０８によって一体的に保持される。この支持フレーム１０８は、圧縮コイルばね１１０によって反力受けローラ１０２側に向かって付勢されており、これによって、嵌合ローラ１００は所定の押圧力（たとえば、１００ｋｇｆ）で連結部材１４の外面側を押圧可能である。また、ボルト１１２の押し込み量を変更することにより、連結部材１４に対する嵌合ローラ１００の押圧力を変更することも可能である。 A motor 106, such as a hydraulic motor, is connected to the engaging roller 100 via a gear section 104. The engaging roller 100, gear section 104, and motor 106 are held together by a support frame 108. This support frame 108 is biased toward the reaction force receiving roller 102 by a compression coil spring 110, which allows the engaging roller 100 to press the outer surface side of the connecting member 14 with a predetermined pressing force (for example, 100 kgf). It is also possible to change the pressing force of the engaging roller 100 against the connecting member 14 by changing the pressing amount of the bolt 112.

このような嵌合ローラ１００は、モータ１０６からの駆動力を受けて回転駆動され、ライニング部材１２の連結部分（具体的には、連結部材１４の基体４０）を外面側から押圧しながら回転することで、ライニング部材１２の第１嵌合部２２に対して連結部材１４の第２嵌合部４２を嵌合させると共に、形成した螺旋管２０２に回転力を与える。また、嵌合ローラ１００は、連結部材１４を外面側から押圧しながら回転することで、連結部材ガイド装置６６に駆動部を設けることなく、連結装置７０内に連結部材１４を順次引き込む。さらに、嵌合ローラ１００は、連結部材１４を外面側から押圧しながら回転することで、ライニング部材１２を螺旋巻きガイド装置６２に引き込む推進力をライニング部材１２に補助的に与える。すなわち、この実施例では、連結装置７０およびライニング部材送り装置６４の双方の駆動力によってライニング部材１２を送りながら、ライニング部材１２の隣り合う側縁部に連結部材１４を順次嵌め合わせていく。 Such a fitting roller 100 is driven to rotate by receiving a driving force from a motor 106, and rotates while pressing the connecting portion of the lining member 12 (specifically, the base body 40 of the connecting member 14) from the outer surface side, thereby fitting the second fitting portion 42 of the connecting member 14 into the first fitting portion 22 of the lining member 12 and applying a rotational force to the formed spiral tube 202. In addition, the fitting roller 100 rotates while pressing the connecting member 14 from the outer surface side, thereby sequentially drawing the connecting member 14 into the connecting device 70 without providing a driving unit to the connecting member guide device 66. Furthermore, the fitting roller 100 rotates while pressing the connecting member 14 from the outer surface side, thereby providing the lining member 12 with an auxiliary propulsive force that draws the lining member 12 into the spiral winding guide device 62. That is, in this embodiment, the lining member 12 is fed by the driving forces of both the connecting device 70 and the lining member feed device 64, while the connecting members 14 are sequentially fitted to adjacent side edges of the lining member 12.

一方、反力受けローラ１０２は、嵌合ローラ１００と対向する位置において、軸受を介して回転自在に設けられる。反力受けローラ１０２は、金属製の円筒状の基体と、ウレタンゴム等の軟質材料で形成され、基体を覆うように設けられた外周部とを有しており、その外周面は周方向において凹凸のない滑らかな円筒面になっている。この反力受けローラ１０２には、油圧モータ等のモータ１１４が接続される。反力受けローラ１０２は、モータ１１４からの駆動力を受けて回転駆動され、嵌合ローラ１００との間でライニング部材１２の連結部分を挟み込むように、ライニング部材１２の連結部分の内面側（具体的には隣り合う基体２０の一方主面２０ａを跨ぐ位置）を押圧する。また、この反力受けローラ１０２は、嵌合ローラ１００からの反力を受けるだけでなく、ライニング部材１２の内面側を押圧しながら回転することで螺旋管２０２の形状を円筒状に整える形状補正ローラとしても機能する。さらに、反力受けローラ１０２は、ライニング部材１２の内面側を押圧しながら回転することで、ライニング部材１２を螺旋巻きガイド装置６２に引き込む推進力をライニング部材１２に補助的に与える。 On the other hand, the reaction force receiving roller 102 is rotatably provided via a bearing at a position facing the engaging roller 100. The reaction force receiving roller 102 has a cylindrical base body made of metal and an outer periphery formed of a soft material such as urethane rubber and provided to cover the base body, and its outer periphery is a smooth cylindrical surface without unevenness in the circumferential direction. A motor 114 such as a hydraulic motor is connected to this reaction force receiving roller 102. The reaction force receiving roller 102 is rotated by receiving a driving force from the motor 114, and presses the inner side of the connecting portion of the lining member 12 (specifically, a position straddling one main surface 20a of the adjacent base body 20) so as to sandwich the connecting portion of the lining member 12 between the engaging roller 100. In addition, this reaction force receiving roller 102 not only receives the reaction force from the engaging roller 100, but also functions as a shape correction roller that rotates while pressing the inner side of the lining member 12, thereby adjusting the shape of the spiral tube 202 into a cylindrical shape. Furthermore, the reaction force receiving roller 102 rotates while pressing the inner surface of the lining member 12, thereby providing the lining member 12 with an auxiliary driving force that draws the lining member 12 into the spiral winding guide device 62.

図２７－図３０に示すように、取付装置７２は、ライニング部材１２の連結部分を跨いで覆うように、ライニング部材１２の外面側から補強部材１６をライニング部材１２に取り付けるための装置である。この実施例では、連結部材１４の全体を覆うように補強部材１６をライニング部材１２に取り付ける。また、この実施例の取付装置７２は、ライニング部材１２に取り付けた補強部材１６に対して、ライニング部材１２の外面に沿うように所定の曲率で湾曲させる曲げ成形を行う装置でもある。 As shown in Figures 27-30, the attachment device 72 is a device for attaching the reinforcing member 16 to the lining member 12 from the outer surface side of the lining member 12 so as to straddle and cover the connecting portion of the lining member 12. In this embodiment, the reinforcing member 16 is attached to the lining member 12 so as to cover the entire connecting member 14. The attachment device 72 in this embodiment is also a device that performs bending forming on the reinforcing member 16 attached to the lining member 12, curving it at a predetermined curvature so as to fit the outer surface of the lining member 12.

具体的には、取付装置７２は、補強部材１６を含むライニング部材１２の連結部分を厚み方向に挟み込むように設けられる一対の取付ローラ、すなわち補強部材送りローラ１２０と第１反力受けローラ１２２とを備える。また、取付装置７２は、螺旋管２０２の回転方向（ライニング部材１２等の送り方向）における補強部材送りローラ１２０および第１反力受けローラ１２２の下流側において、補強部材１６を含むライニング部材１２の連結部分を厚み方向に挟み込むように設けられる一対の曲げローラ、すなわち補強部材曲げローラ１２４と第２反力受けローラ１２６とを備える。 Specifically, the mounting device 72 includes a pair of mounting rollers, i.e., a reinforcing member feed roller 120 and a first reaction force receiving roller 122, that are arranged to sandwich the connecting portion of the lining member 12 including the reinforcing member 16 in the thickness direction. The mounting device 72 also includes a pair of bending rollers, i.e., a reinforcing member bending roller 124 and a second reaction force receiving roller 126, that are arranged to sandwich the connecting portion of the lining member 12 including the reinforcing member 16 in the thickness direction downstream of the reinforcing member feed roller 120 and the first reaction force receiving roller 122 in the rotation direction of the helical tube 202 (the feeding direction of the lining member 12, etc.).

取付装置７２は、ボルト等の締結部材を用いて螺旋巻きガイド装置６２のフレーム部材８２に固定される。この際、補強部材送りローラ１２０と補強部材曲げローラ１２４とは、螺旋巻きガイド装置６２のフレーム部材８２の第５開口部８２ｈに嵌め込まれ、補強部材送りローラ１２０および補強部材曲げローラ１２４の一部は、フレーム部材８２の円筒部８２ａ内に突出する。また、各ローラ１２０,１２２,１２４,１２６の軸方向は、外側ガイドローラ８０の軸方向と同じ方向（平行）である。 The mounting device 72 is fixed to the frame member 82 of the spiral winding guide device 62 using fastening members such as bolts. At this time, the reinforcing member feed roller 120 and the reinforcing member bending roller 124 are fitted into the fifth opening 82h of the frame member 82 of the spiral winding guide device 62, and a portion of the reinforcing member feed roller 120 and the reinforcing member bending roller 124 protrudes into the cylindrical portion 82a of the frame member 82. In addition, the axial direction of each roller 120, 122, 124, 126 is the same direction (parallel) as the axial direction of the outer guide roller 80.

補強部材送りローラ１２０は、螺旋管２０２の外面（具体的には、補強部材１６の天壁５２）と当接するように、軸受を介して回転自在に設けられる。補強部材送りローラ１２０は、ライニング部材１２が螺旋巻きガイド装置６２のフレーム部材８２内に搬送されてから約２.６８周（約９６５度）の位置と約３.６８周（約１３２５度）の位置とに跨る軸方向位置に設けられる。補強部材送りローラ１２０は、金属製であって、その両端部の外周面には、補強部材１６の幅方向への移動を規制する鍔状の規制部１２０ａが形成される。 The reinforcing member feed roller 120 is rotatably mounted via a bearing so as to abut against the outer surface of the spiral tube 202 (specifically, the top wall 52 of the reinforcing member 16). The reinforcing member feed roller 120 is mounted at an axial position spanning a position approximately 2.68 revolutions (approximately 965 degrees) and a position approximately 3.68 revolutions (approximately 1325 degrees) after the lining member 12 is transported into the frame member 82 of the spiral winding guide device 62. The reinforcing member feed roller 120 is made of metal, and a brim-shaped restricting portion 120a that restricts the movement of the reinforcing member 16 in the width direction is formed on the outer circumferential surface at both ends.

一方、第１反力受けローラ１２２は、補強部材送りローラ１２０と対向する位置において、螺旋管２０２の内面（具体的にはライニング部材１２の基体２０の一方主面２０ａ）と当接するように、軸受を介して回転自在に設けられる。第１反力受けローラ１２２は、ライニング部材１２が螺旋巻きガイド装置６２のフレーム部材８２内に搬送されてから約０.６８周（約２４５度）の位置、約１.６８周（約６０５度）の位置、約２.６８周（約９６５度）の位置、および約３.６８周（約１３２５度）の位置に跨るように、つまり４巻き分のライニング部材１２に跨るように設けられる。第１反力受けローラ１２２は、金属製の円筒状の基体と、ウレタンゴム等の軟質材料で形成され、基体を覆うように設けられた外周部とを有しており、その外周面は周方向において凹凸のない滑らかな円筒面になっている。 On the other hand, the first reaction force receiving roller 122 is rotatably provided via a bearing so as to abut against the inner surface of the spiral tube 202 (specifically, one main surface 20a of the base body 20 of the lining member 12) at a position opposite the reinforcing member feed roller 120. The first reaction force receiving roller 122 is provided so as to straddle the positions of about 0.68 revolutions (about 245 degrees), about 1.68 revolutions (about 605 degrees), about 2.68 revolutions (about 965 degrees), and about 3.68 revolutions (about 1325 degrees) after the lining member 12 is transported into the frame member 82 of the spiral winding guide device 62, that is, to straddle four turns of the lining member 12. The first reaction force receiving roller 122 has a cylindrical base body made of metal and an outer periphery formed of a soft material such as urethane rubber and provided to cover the base body, and the outer periphery is a smooth cylindrical surface without unevenness in the circumferential direction.

また、補強部材曲げローラ１２４は、一対の取付ローラ（補強部材送りローラ１２０および第１反力受けローラ１２２）と協働して、ライニング部材１２の外面に沿うように補強部材１６を湾曲させるためのローラである。補強部材曲げローラ１２４は、金属製であって、その両端部の外周面には、補強部材１６の幅方向への移動を規制する鍔状の規制部１２４ａが形成される。補強部材曲げローラ１２４は、螺旋管２０２の回転方向における補強部材送りローラ１２０の下流側の周方向位置において、螺旋管２０２の外面（補強部材１６の天壁５２）と当接するように、軸受を介して回転自在に設けられる。 The reinforcing member bending roller 124 cooperates with a pair of mounting rollers (the reinforcing member feed roller 120 and the first reaction force receiving roller 122) to bend the reinforcing member 16 to fit the outer surface of the lining member 12. The reinforcing member bending roller 124 is made of metal, and a brim-shaped restricting portion 124a that restricts the movement of the reinforcing member 16 in the width direction is formed on the outer peripheral surface at both ends. The reinforcing member bending roller 124 is rotatably mounted via a bearing so as to abut against the outer surface of the helical tube 202 (the top wall 52 of the reinforcing member 16) at a circumferential position downstream of the reinforcing member feed roller 120 in the rotation direction of the helical tube 202.

この際、補強部材曲げローラ１２４は、補強部材送りローラ１２０と所定間隔をあけて設けられる。これは、補強部材送りローラ１２０と補強部材曲げローラ１２４との間隔が近すぎると、予め施工曲げしてある補強部材１６に逆曲げの変形（内側に凹む変形）が生じ、補強部材１６に余計な負荷が生じる恐れがあるからである。補強部材送りローラ１２０と補強部材曲げローラ１２４との間隔は、たとえば螺旋管２０２の中心角θで１５度～３０度が好まく、この実施例では２４度である。すなわち、この実施例の補強部材曲げローラ１２４は、ライニング部材１２が螺旋巻きガイド装置６２のフレーム部材８２内に搬送されてから約２.７５周（約９９０度）の位置と約３.７５周（約１３５０度）の位置とに跨る軸方向位置に設けられる。 At this time, the reinforcing member bending roller 124 is provided at a predetermined interval from the reinforcing member feed roller 120. This is because if the interval between the reinforcing member feed roller 120 and the reinforcing member bending roller 124 is too close, the reinforcing member 16 that has been previously bent may be deformed by reverse bending (deformation that is concave inward), and an unnecessary load may be applied to the reinforcing member 16. The interval between the reinforcing member feed roller 120 and the reinforcing member bending roller 124 is preferably 15 degrees to 30 degrees, for example, in terms of the central angle θ of the spiral tube 202, and is 24 degrees in this embodiment. That is, the reinforcing member bending roller 124 in this embodiment is provided at an axial position that spans a position approximately 2.75 revolutions (approximately 990 degrees) and a position approximately 3.75 revolutions (approximately 1350 degrees) after the lining member 12 is transported into the frame member 82 of the spiral winding guide device 62.

一方、第２反力受けローラ１２６は、補強部材送りローラ１２０と補強部材曲げローラ１２４との間の周方向位置において、螺旋管２０２の内面（基体２０の一方主面２０ａ）と当接するように、軸受を介して回転自在に設けられる。第２反力受けローラ１２６は、ライニング部材１２が螺旋巻きガイド装置６２のフレーム部材８２内に搬送されてから約０.７２周（約２５８度）の位置、約１.７２周（約６１８度）の位置、約２.７２周（約９７８度）の位置、および約３.７２周（約１３３８度）の位置に跨るように、つまり４巻き分のライニング部材１２に跨るように設けられる。第２反力受けローラ１２６は、金属製の円筒状の基体と、ウレタンゴム等の軟質材料で形成され、基体を覆うように設けられた外周部とを有しており、その外周面は周方向において凹凸のない滑らかな円筒面になっている。 On the other hand, the second reaction force receiving roller 126 is rotatably provided via a bearing so as to abut against the inner surface of the spiral tube 202 (one main surface 20a of the base 20) at a circumferential position between the reinforcing member feed roller 120 and the reinforcing member bending roller 124. The second reaction force receiving roller 126 is provided so as to straddle the positions of about 0.72 revolutions (about 258 degrees), about 1.72 revolutions (about 618 degrees), about 2.72 revolutions (about 978 degrees), and about 3.72 revolutions (about 1338 degrees) after the lining member 12 is transported into the frame member 82 of the spiral winding guide device 62, that is, so as to straddle four turns of the lining member 12. The second reaction force receiving roller 126 has a cylindrical base made of metal and an outer periphery formed of a soft material such as urethane rubber and provided to cover the base, and the outer periphery is a smooth cylindrical surface without unevenness in the circumferential direction.

また、取付装置７２は、補強部材送りローラ１２０を回転駆動させる油圧モータ等のモータ１２８を備える。この実施例では、モータ１２８は、ギア列１３０を介して補強部材送りローラ１２０および補強部材曲げローラ１２４に連結されており、補強部材送りローラ１２０および補強部材曲げローラ１２４は、モータ１２８からの駆動力を受けて回転駆動される。すなわち、補強部材送りローラ１２０を回転駆動させるモータ１２８は、補強部材曲げローラ１２４を回転駆動させるモータと兼用される。ただし、補強部材送りローラ１２０と補強部材曲げローラ１２４とでそれぞれ個別にモータが設けられてもよいし、補強部材曲げローラ１２４が従動回転するようにしてもよい。 The mounting device 72 also includes a motor 128, such as a hydraulic motor, that rotates the reinforcing member feed roller 120. In this embodiment, the motor 128 is connected to the reinforcing member feed roller 120 and the reinforcing member bending roller 124 via a gear train 130, and the reinforcing member feed roller 120 and the reinforcing member bending roller 124 are rotated by the driving force from the motor 128. In other words, the motor 128 that rotates the reinforcing member feed roller 120 is also used as the motor that rotates the reinforcing member bending roller 124. However, the reinforcing member feed roller 120 and the reinforcing member bending roller 124 may each be provided with a separate motor, or the reinforcing member bending roller 124 may be rotated by the motor.

また、補強部材送りローラ１２０、補強部材曲げローラ１２４およびモータ１２８等は、支持フレーム１３２によって一体的に支持される。支持フレーム１３２は、螺旋巻きガイド装置６２のフレーム部材８２に固定された固定フレーム１３４に対して、螺旋管２０２の径方向（螺旋管２０２と離接する方向）に移動可能に設けられている。つまり、補強部材送りローラ１２０、補強部材曲げローラ１２４およびモータ１２８は、これらの位置関係を保持した状態で、螺旋管２０２の径方向に移動可能に設けられている。したがって、螺旋管２０２（補強部材１６）に対する補強部材送りローラ１２０および補強部材曲げローラ１２４の押圧力を変更することが可能である。 The reinforcing member feed roller 120, reinforcing member bending roller 124, motor 128, etc. are integrally supported by a support frame 132. The support frame 132 is provided so as to be movable in the radial direction of the helical tube 202 (the direction of moving toward and away from the helical tube 202) relative to a fixed frame 134 fixed to the frame member 82 of the helical winding guide device 62. In other words, the reinforcing member feed roller 120, reinforcing member bending roller 124, and motor 128 are provided so as to be movable in the radial direction of the helical tube 202 while maintaining their positional relationship. Therefore, it is possible to change the pressing force of the reinforcing member feed roller 120 and reinforcing member bending roller 124 against the helical tube 202 (reinforcing member 16).

さらに、補強部材曲げローラ１２４は、補強部材送りローラ１２０とは個別に螺旋管２０２の径方向に移動可能に設けられている。補強部材送りローラ１２０に対する補強部材曲げローラ１２４の相対位置を調整することで、補強部材１６の曲げ量（曲率）を調整することができる。この実施例では、支持フレーム１３２は、補強部材送りローラ１２０等を支持する第１フレーム１３２ａと、補強部材曲げローラ１２４およびモータ１２８等を支持する第２フレーム１３２ｂ（フレームの一例）とを含む。第２フレーム１３２ｂは、補強部材曲げローラ１２４の軸と平行に配置された揺動軸１３２ｃを支点として、第１フレーム１３２ａに対して揺動可能に設けられている。この揺動軸１３２ｃは、補強部材１６の曲げ支点となる第２反力受けローラ１２６と対応する周方向位置に設けられる。そして、第２フレーム１３２ｂを揺動させることで、補強部材曲げローラ１２４を螺旋管２０２の径方向に移動させることができる。これにより、補強部材曲げローラの径方向位置を容易に調整できる。また、補強部材１６の曲げ量（曲率）を調整可能なので、異なる口径の螺旋管２０２を形成する他の製管機６０に取付装置７２を兼用できる。 Furthermore, the reinforcing member bending roller 124 is provided so as to be movable in the radial direction of the spiral tube 202 separately from the reinforcing member feed roller 120. By adjusting the relative position of the reinforcing member bending roller 124 with respect to the reinforcing member feed roller 120, the bending amount (curvature) of the reinforcing member 16 can be adjusted. In this embodiment, the support frame 132 includes a first frame 132a that supports the reinforcing member feed roller 120, etc., and a second frame 132b (an example of a frame) that supports the reinforcing member bending roller 124 and the motor 128, etc. The second frame 132b is provided so as to be able to swing with respect to the first frame 132a, with a swing shaft 132c arranged parallel to the axis of the reinforcing member bending roller 124 as a fulcrum. This swing shaft 132c is provided at a circumferential position corresponding to the second reaction force receiving roller 126 that serves as the bending fulcrum of the reinforcing member 16. Then, by swinging the second frame 132b, the reinforcing member bending roller 124 can be moved in the radial direction of the spiral tube 202. This allows the radial position of the reinforcing member bending roller to be easily adjusted. Also, because the amount of bending (curvature) of the reinforcing member 16 can be adjusted, the mounting device 72 can be used for other pipe making machines 60 that form helical pipes 202 of different diameters.

このような取付装置７２では、補強部材送りローラ１２０は、モータ１２８からの駆動力を受けて回転駆動され、補強部材１６を外面側から押圧して補強部材１６の延出部５６の先端部をライニング部材１２の爪部３４ａに係合させると共に、螺旋管２０２に回転力を与える。また、補強部材送りローラ１２０は、螺旋管２０２を外面側から押圧しながら回転することで、ライニング部材１２、連結部材１４および補強部材１６に推進力（螺旋巻きガイド装置６２内への引込力）を補助的に与える。 In such an attachment device 72, the reinforcing member feed roller 120 is driven to rotate by receiving a driving force from the motor 128, and presses the reinforcing member 16 from the outer surface side to engage the tip of the extension portion 56 of the reinforcing member 16 with the claw portion 34a of the lining member 12, while applying a rotational force to the helical tube 202. In addition, the reinforcing member feed roller 120 rotates while pressing the helical tube 202 from the outer surface side, thereby providing an auxiliary propulsion force (a pulling force into the helical winding guide device 62) to the lining member 12, the connecting member 14, and the reinforcing member 16.

第１反力受けローラ１２２は、螺旋管２０２の回転に伴って従動回転しながら、補強部材送りローラ１２０との間でライニング部材１２の連結部分を挟み込むように、螺旋管２０２の内面を押圧する。また、この第１反力受けローラ１２２は、補強部材送りローラ１２０からの反力を受けるだけでなく、螺旋管２０２の内面側を押圧しながら回転することで螺旋管２０２の形状を円筒状に整える形状補正ローラとしても機能する。 The first reaction force receiving roller 122 rotates in response to the rotation of the helical tube 202, while pressing the inner surface of the helical tube 202 so as to sandwich the connecting portion of the lining member 12 between the first reaction force receiving roller 122 and the reinforcing member feed roller 120. In addition to receiving the reaction force from the reinforcing member feed roller 120, the first reaction force receiving roller 122 also functions as a shape correction roller that adjusts the shape of the helical tube 202 into a cylindrical shape by rotating while pressing the inner surface of the helical tube 202.

補強部材曲げローラ１２４は、モータ１２８からの駆動力を受けて回転駆動され、補強部材１６を外面側から押圧してライニング部材１２の外面に沿うように補強部材１６を湾曲させる。また、補強部材曲げローラ１２４は、螺旋管２０２を外面側から押圧しながら回転することで、螺旋管２０２に回転力を与えると共に、ライニング部材１２、連結部材１４および補強部材１６に推進力を補助的に与える。 The reinforcing member bending roller 124 is driven to rotate by the driving force from the motor 128, and presses the reinforcing member 16 from the outer surface side to bend the reinforcing member 16 to fit the outer surface of the lining member 12. In addition, the reinforcing member bending roller 124 rotates while pressing the helical tube 202 from the outer surface side, thereby applying a rotational force to the helical tube 202 and providing an auxiliary propulsive force to the lining member 12, the connecting member 14, and the reinforcing member 16.

第２反力受けローラ１２６は、螺旋管２０２の回転に伴って従動回転しながら、補強部材送りローラ１２０と補強部材曲げローラ１２４との間の周方向位置において、ライニング部材１２の連結部分を含む螺旋管２０２の内面側を押圧する。また、この第２反力受けローラ１２６は、補強部材曲げローラ１２４からの反力を受けるだけでなく、螺旋管２０２の内面側を押圧しながら回転することで螺旋管２０２の形状を円筒状に整える形状補正ローラとしても機能する。 The second reaction force receiving roller 126 rotates in response to the rotation of the helical tube 202, while pressing the inner surface of the helical tube 202 including the connecting portion of the lining member 12 at a circumferential position between the reinforcing member feed roller 120 and the reinforcing member bending roller 124. In addition to receiving the reaction force from the reinforcing member bending roller 124, the second reaction force receiving roller 126 also functions as a shape correction roller that adjusts the shape of the helical tube 202 into a cylindrical shape by rotating while pressing the inner surface of the helical tube 202.

ここで、取付装置７２では、一対の取付ローラ（補強部材送りローラ１２０および第１反力受けローラ１２２）で補強部材１６の径方向位置を固定しながら、第２反力受けローラ１２６を曲げ支点として、補強部材送りローラ１２０と周方向に所定間隔をあけて設けられた補強部材曲げローラ１２４によって補強部材１６を外側から押圧することで、補強部材１６を湾曲させる。つまり、補強部材送りローラ１２０、第１反力受けローラ１２２、補強部材曲げローラ１２４および第２反力受けローラ１２６の４点で押圧して補強部材１６を曲げ成形しているので、補強部材１６に逆曲げの変形を生じさせることなく、ライニング部材１２の外面に沿うように補強部材１６をライニング部材１２に適切に取り付けることができる。 In the mounting device 72, the radial position of the reinforcing member 16 is fixed by a pair of mounting rollers (the reinforcing member feed roller 120 and the first reaction force receiving roller 122), while the second reaction force receiving roller 126 is used as a bending fulcrum, and the reinforcing member 16 is pressed from the outside by the reinforcing member bending roller 124 provided at a predetermined interval in the circumferential direction from the reinforcing member feed roller 120, thereby curving the reinforcing member 16. In other words, the reinforcing member 16 is bent by pressing at four points, the reinforcing member feed roller 120, the first reaction force receiving roller 122, the reinforcing member bending roller 124, and the second reaction force receiving roller 126, so that the reinforcing member 16 can be appropriately attached to the lining member 12 so as to follow the outer surface of the lining member 12 without causing reverse bending deformation of the reinforcing member 16.

図１１－図１４に戻って、脚部７４は、ステンレス鋼等の金属製であって、フレーム部材８２の両側部に固定された連結フレーム１４０と、連結フレーム１４０を上下方向に貫通するように設けられた４つの支柱部１４２とを備える。支柱部１４２の外周面には、連結フレーム１４０に設けられた雌ねじ部と螺合する雄ねじ部が形成されており、このねじ機構によって螺旋巻きガイド装置６２の設置高さを調整可能である。 Returning to Figures 11 to 14, the leg 74 is made of a metal such as stainless steel, and includes a connecting frame 140 fixed to both sides of the frame member 82, and four support columns 142 that are provided to penetrate the connecting frame 140 in the vertical direction. A male thread is formed on the outer periphery of the support columns 142, which screws into a female thread provided on the connecting frame 140, and this screw mechanism makes it possible to adjust the installation height of the spiral winding guide device 62.

また、図１１に示すように、螺旋巻きガイド装置６２の内面側には、上下方向に延びる２つの突っ張り棒１４４が設けられる。これら突っ張り棒１４４によって螺旋巻きガイド装置６２（延いては螺旋管２０２）の偏平が防止される。なお、突っ張り棒１４４は、取付装置７２の配置位置（角度）などに応じて、設ける方向（配置角度）を変更することが可能である。 As shown in FIG. 11, two tension rods 144 extending in the vertical direction are provided on the inner surface of the spiral winding guide device 62. These tension rods 144 prevent the spiral winding guide device 62 (and thus the spiral tube 202) from becoming flattened. The direction (angle) at which the tension rods 144 are provided can be changed depending on the position (angle) of the mounting device 72, etc.

続いて、図１および図３１を参照して、上述のような製管機６０を用いて形成した螺旋管２０２によって既設管２００を更生する管路更生工法の一例について説明する。この実施例では、発進側マンホール２１０から到達側マンホール２１２までの間の既設管２００を更生するものとする。 Next, referring to Figures 1 and 31, an example of a pipeline rehabilitation method for rehabilitating an existing pipe 200 with a spiral pipe 202 formed using the above-mentioned pipe making machine 60 will be described. In this embodiment, the existing pipe 200 between the starting manhole 210 and the arrival manhole 212 is to be rehabilitated.

図１および図３１に示すように、既設管２００を更生するときには、先ず、発進側マンホール２１０内に製管機６０を設置する。この際には、発進側マンホール２１０のインバート部に螺旋巻きガイド装置６２の下部を嵌め込み、脚部７４によって製管機６０を支持固定する。また、発進側マンホール２１０の近傍の地上にライニング部材１２、連結部材１４および補強部材１６を含む管更生部材１０を設置する。ライニング部材１２、連結部材１４および補強部材１６は、それぞれ個別にロール状に巻き取ったものを用意して設置するとよい。なお、既設管２００内は、高圧洗浄機などを用いて予め洗浄しておく。 As shown in Figures 1 and 31, when rehabilitating an existing pipe 200, first, a pipe making machine 60 is installed inside the starting manhole 210. At this time, the lower part of the spiral winding guide device 62 is fitted into the inverted part of the starting manhole 210, and the pipe making machine 60 is supported and fixed by the legs 74. In addition, a pipe rehabilitation member 10 including a lining member 12, a connecting member 14, and a reinforcing member 16 is installed on the ground near the starting manhole 210. The lining member 12, the connecting member 14, and the reinforcing member 16 may be prepared and installed individually wound into rolls. The inside of the existing pipe 200 is cleaned in advance using a high-pressure washer or the like.

次に、ライニング部材１２、連結部材１４および補強部材１６を地上から発進側マンホール２１０内に設置した製管機６０に供給し、この製管機６０を用いて形成した螺旋管２０２を発進側マンホール２１０内から既設管２００内に順次送り込んでいく。 Next, the lining member 12, the connecting member 14, and the reinforcing member 16 are supplied from the ground to a pipe making machine 60 installed inside the starting manhole 210, and the spiral pipe 202 formed using this pipe making machine 60 is fed sequentially from inside the starting manhole 210 into the existing pipe 200.

製管機６０においては、ライニング部材１２の基体２０の側縁どうしを突き合わせるようにしてライニング部材１２を螺旋状に巻き回すと共に、ライニング部材１２の外面側から連結部材１４を取り付けることで、ライニング部材１２の隣り合う側縁部どうしが連結される。また、連結部材１４を含むライニング部材１２の連結部分を補強部材１６が跨いで覆うように、ライニング部材１２の外面側に補強部材１６を取り付けることで、螺旋管２０２が形成される。なお、螺旋管２０２の外径（補強部材１６の天壁５２の外径）は、既設管２００の内径よりも少し小さい大きさに設定される。製管機６０において製管された螺旋管２０２は、製管された部分から順に製管機６０から押し出されて、回転しながら到達側マンホール２１２に向かって既設管２００内に送り込まれる。 In the pipe making machine 60, the lining member 12 is wound in a spiral shape so that the side edges of the base 20 of the lining member 12 are butted together, and the connecting member 14 is attached from the outer surface side of the lining member 12 to connect adjacent side edges of the lining member 12. In addition, the reinforcing member 16 is attached to the outer surface side of the lining member 12 so that the reinforcing member 16 straddles and covers the connecting portion of the lining member 12 including the connecting member 14, thereby forming a spiral pipe 202. The outer diameter of the spiral pipe 202 (the outer diameter of the top wall 52 of the reinforcing member 16) is set to a size slightly smaller than the inner diameter of the existing pipe 200. The spiral pipe 202 made in the pipe making machine 60 is pushed out of the pipe making machine 60 in order from the manufactured portion, and is fed into the existing pipe 200 toward the arrival side manhole 212 while rotating.

ここで、ライニング部材１２の連結に連結部材１４を用いることで、ライニング部材１２を周回させて位置決めした後に、連結部材１４によってライニング部材１２の側縁部どうしを連結固定することができる。したがって、螺旋管２０２を形成する際に、隣り合うライニング部材１２の周長（口径）を合わせ易く、軸方向の全長に亘って口径が一様な螺旋管２０２を形成できる。 Here, by using the connecting member 14 to connect the lining members 12, the lining members 12 can be rotated to position them, and then the side edges of the lining members 12 can be connected and fixed together by the connecting member 14. Therefore, when forming the helical pipe 202, it is easy to match the circumferential length (diameter) of adjacent lining members 12, and a helical pipe 202 with a uniform diameter over the entire axial length can be formed.

また、ライニング部材１２の連結部分を跨いで覆うように補強部材１６を取り付けることで、ライニング部材１２の連結部分においては引張方向（ライニング部材１２が互いに離れる方向）に対する抵抗力が大きくなる。このため、地震時などにおいて螺旋管２０２に引張力が作用した場合でも、補強部材１６によってライニング部材１２の連結部分（特に第１嵌合部２２および第２嵌合部４２）の変形を抑えることができ、止水部材２８による止水性を確保できる。なお、螺旋管２０２の軸方向変位は、変位吸収部３０によって吸収可能であるので、ライニング部材１２が変位吸収部３０を有することでライニング部材１２の連結部分の変形をより確実に抑制できる。 In addition, by attaching the reinforcing member 16 so as to straddle and cover the connecting portions of the lining members 12, the resistance force in the tensile direction (the direction in which the lining members 12 move away from each other) at the connecting portions of the lining members 12 is increased. Therefore, even if a tensile force acts on the helical tube 202 during an earthquake, the reinforcing member 16 can suppress deformation of the connecting portions of the lining members 12 (particularly the first fitting portion 22 and the second fitting portion 42), and the water-stopping performance of the water-stopping member 28 can be ensured. In addition, since the axial displacement of the helical tube 202 can be absorbed by the displacement absorbing portion 30, the lining member 12 having the displacement absorbing portion 30 can more reliably suppress deformation of the connecting portions of the lining members 12.

さらに、補強部材１６を取り付けることで、ライニング部材１２の連結部分の強度（剛性）を高めることができ、延いては螺旋管２０２の強度を高めることができる。したがって、螺旋管２０２が偏平すること、つまり螺旋管２０２が径方向の内側および外側に撓むことを防止ないし低減できる。また、補強部材１６によってライニング部材１２の連結強度を確保できるので、連結強度を大きくするために第１嵌合部２２（第１突条２４および第２突条２６）や第２嵌合部４２の肉厚を大きくする必要がなく、他の部分と肉厚を均等にできる。すなわち、ライニング部材１２および連結部材１４の部材全体を均一な肉厚にできるため、ライニング部材１２および連結部材１４を成形し易い。 Furthermore, by attaching the reinforcing member 16, the strength (rigidity) of the connecting portion of the lining member 12 can be increased, and the strength of the helical tube 202 can be increased. Therefore, flattening of the helical tube 202, that is, bending of the helical tube 202 inward and outward in the radial direction, can be prevented or reduced. In addition, since the reinforcing member 16 ensures the connecting strength of the lining member 12, there is no need to increase the thickness of the first fitting portion 22 (first ridge 24 and second ridge 26) or the second fitting portion 42 to increase the connecting strength, and the thickness can be made uniform with other portions. In other words, the entire members of the lining member 12 and the connecting member 14 can be made uniform in thickness, making it easier to mold the lining member 12 and the connecting member 14.

さらにまた、補強部材１６によってライニング部材１２の連結部分が保護されるので、形成した螺旋管２０２を既設管２００内に送り込むときに、ライニング部材１２の連結部分（特に連結部材１４）が既設管２００の内面に擦れて傷つくことを防止できる。特に、この実施例では、螺旋状に巻き回したライニング部材１２に補強部材１６を取り付けて螺旋管２０２を形成した状態において、補強基体５０の天壁５２が螺旋管２０２の径方向における最外部に位置する。つまり、補強基体５０の天壁５２の外面は、ライニング部材１２の変位吸収部３０の連結部３０ｂの外面および突条３４の先端よりも径方向外側に位置する。したがって、螺旋管２０２を既設管２００内に送り込むときには、補強基体５０の天壁５２が既設管２００の内面と摺接し、ライニング部材１２は既設管２００の内面と摺接しない、または摺接し難いので、ライニング部材１２の全体を適切に保護できる。 Furthermore, since the reinforcing member 16 protects the connecting portion of the lining member 12, when the formed spiral pipe 202 is fed into the existing pipe 200, the connecting portion of the lining member 12 (particularly the connecting member 14) can be prevented from being rubbed against the inner surface of the existing pipe 200 and being damaged. In particular, in this embodiment, when the reinforcing member 16 is attached to the spirally wound lining member 12 to form the spiral pipe 202, the top wall 52 of the reinforcing base 50 is located at the outermost position in the radial direction of the spiral pipe 202. In other words, the outer surface of the top wall 52 of the reinforcing base 50 is located radially outward from the outer surface of the connecting portion 30b of the displacement absorbing portion 30 of the lining member 12 and the tip of the protrusion 34. Therefore, when the spiral pipe 202 is fed into the existing pipe 200, the top wall 52 of the reinforcing base 50 slides against the inner surface of the existing pipe 200, and the lining member 12 does not or does not slide against the inner surface of the existing pipe 200, so the entire lining member 12 can be adequately protected.

また特に、取付装置７２が補強部材曲げローラ１２４および第２反力受けローラ１２６を備えることで、補強部材１６をライニング部材１２の外面に沿うように所定の曲率で適切に湾曲させることができる。したがって、ライニング部材１２に補強部材１６を適切に取り付けることができる。 In particular, since the mounting device 72 is equipped with the reinforcing member bending roller 124 and the second reaction force receiving roller 126, the reinforcing member 16 can be appropriately curved with a predetermined curvature so as to fit the outer surface of the lining member 12. Therefore, the reinforcing member 16 can be appropriately attached to the lining member 12.

既設管２００の更生区間の全長に亘って螺旋管２０２を施工すると、その後、片付け作業などを適宜実施することによって、既設管２００の更生作業が終了する。 Once the spiral pipe 202 has been installed over the entire length of the rehabilitated section of the existing pipe 200, the rehabilitation work for the existing pipe 200 is completed by carrying out cleanup work etc. as appropriate.

以上のように、この実施例によれば、取付装置７２が補強部材曲げローラ１２４および第２反力受けローラ１２６を備えるので、製管機６０内において、補強部材１６を所定の曲率に適切に曲げ成形することができる。したがって、ライニング部材１２の連結部分に補強部材１６を適切に取り付けることができ、高強度の螺旋管２０２を適切に形成することができる。 As described above, according to this embodiment, the mounting device 72 is equipped with the reinforcing member bending roller 124 and the second reaction force receiving roller 126, so that the reinforcing member 16 can be appropriately bent to a predetermined curvature in the pipe making machine 60. Therefore, the reinforcing member 16 can be appropriately attached to the connecting portion of the lining member 12, and a high-strength spiral pipe 202 can be appropriately formed.

なお、上述したように、管更生部材１０（ライニング部材１２、連結部材１４および補強部材１６）の具体的な構成ないし形状は、適宜変更可能である。管更生部材１０は、ライニング部材１２の外面側から補強部材１６が取り付けられる構成を有するものであればよい。 As mentioned above, the specific configuration or shape of the pipe rehabilitation member 10 (lining member 12, connecting member 14, and reinforcing member 16) can be changed as appropriate. The pipe rehabilitation member 10 may be configured so that the reinforcing member 16 can be attached from the outer surface side of the lining member 12.

たとえば、図３２に示すように、ライニング部材１２と連結部材１４および補強部材１６との嵌合部の構成を変更することもできる。簡単に説明すると、この実施例では、ライニング部材１２の第１嵌合部２２は、基体２０の長手方向に延びる突条であって、この第１嵌合部２２の一方側面の先端部には、基体２０の幅方向内側に向かって突出する係止片２２ａが形成される。また、基体２０の他方主面２０ｂの両側部のそれぞれには、補強部材１６との嵌合部である突条３４が形成される。この突条３４の他方側面の先端部には、基体２０の幅方向内側に向かって突出する爪部３４ａが形成される。一方、連結部材１４の第２嵌合部４２は、基体４０の長手方向に延びる第１突条４２ｂと第２突条４２ｃとを含む溝状に形成される。また、補強部材１６の延出部５６は、側壁５４の先端部から補強基体５０の幅方向外側に向かって延出されており、側壁５４の先端部から屈曲して天壁５２側（径方向外側）に向かって斜め方向に延びる。そして、第２嵌合部４２の２つの突条４２ｂ,４２ｃ間に第１嵌合部２２が挟持されると共に、第１嵌合部２２の係止片２２ａと突条４２ｂの係止片４２ｄとが係合されることで、連結部材１４によってライニング部材１２の側縁部どうしが連結される。また、補強部材１６の延出部５６の先端部がライニング部材１２の爪部３４ａによって係止されることで、連結部材１４を含むライニング部材１２の連結部分を跨いで覆うように、ライニング部材１２に補強部材１６が取り付けられる。 For example, as shown in FIG. 32, the configuration of the fitting portion between the lining member 12 and the connecting member 14 and the reinforcing member 16 can be changed. Briefly, in this embodiment, the first fitting portion 22 of the lining member 12 is a protrusion extending in the longitudinal direction of the base body 20, and a locking piece 22a protruding toward the inside of the width direction of the base body 20 is formed at the tip of one side of this first fitting portion 22. In addition, a protrusion 34 that is a fitting portion with the reinforcing member 16 is formed on each of both sides of the other main surface 20b of the base body 20. A claw portion 34a protruding toward the inside of the width direction of the base body 20 is formed at the tip of the other side of this protrusion 34. On the other hand, the second fitting portion 42 of the connecting member 14 is formed in a groove shape including a first protrusion 42b and a second protrusion 42c extending in the longitudinal direction of the base body 40. The extension 56 of the reinforcing member 16 extends from the tip of the side wall 54 toward the outside in the width direction of the reinforcing base 50, and bends from the tip of the side wall 54 to extend obliquely toward the top wall 52 side (diametrically outward). The first fitting portion 22 is sandwiched between the two protrusions 42b, 42c of the second fitting portion 42, and the locking piece 22a of the first fitting portion 22 and the locking piece 42d of the protrusion 42b are engaged, so that the side edges of the lining member 12 are connected to each other by the connecting member 14. The tip of the extension 56 of the reinforcing member 16 is locked by the claw portion 34a of the lining member 12, so that the reinforcing member 16 is attached to the lining member 12 so as to straddle and cover the connecting portion of the lining member 12 including the connecting member 14.

また、図３３に示すように、管更生部材１０は、連結部材１４に補強部材１６が取り付けられる構成を有していてもよい。つまり、取付装置７２は、補強部材１６を連結部材１４に取り付けるものであっても構わない。さらに、図示は省略するが、補強部材１６は、必ずしもライニング部材１２の連結部分に取り付けられる必要はなく、ライニング部材１２の幅方向中央部に取り付けられても構わない。つまり、取付装置７２は、補強部材１６をライニング部材１２の幅方向中央部に取り付けるものであっても構わない。 Also, as shown in FIG. 33, the pipe rehabilitation member 10 may have a configuration in which a reinforcing member 16 is attached to the connecting member 14. In other words, the mounting device 72 may be configured to mount the reinforcing member 16 to the connecting member 14. Furthermore, although not shown, the reinforcing member 16 does not necessarily have to be mounted to the connecting portion of the lining member 12, and may be mounted to the center of the lining member 12 in the width direction. In other words, the mounting device 72 may be configured to mount the reinforcing member 16 to the center of the lining member 12 in the width direction.

また、上述の実施例では、ライニング部材１２の側縁部どうし連結部材１４を用いて連結したが、ライニング部材１２の側縁部どうしは、必ずしも連結部材１４を用いて連結する必要はない。ライニング部材１２の両側縁部に互いに嵌め合い可能な嵌合部を形成して、ライニング部材１２の側縁部どうしを直接連結する構成とすることもできる。すなわち、ライニング部材１２の連結部分には、連結部材１４を含む場合と含まない場合とがある。 In addition, in the above embodiment, the side edges of the lining member 12 are connected to each other using the connecting member 14, but the side edges of the lining member 12 do not necessarily have to be connected to each other using the connecting member 14. It is also possible to form fitting portions that can fit into both side edges of the lining member 12, and directly connect the side edges of the lining member 12 to each other. In other words, the connecting portion of the lining member 12 may or may not include the connecting member 14.

さらに、製管機６０の各部の具体的な構成および配置態様なども適宜変更可能である。たとえば、補強部材曲げローラ１２４は、必ずしも螺旋管２０２の径方向に移動可能に設けられる必要はない。 Furthermore, the specific configuration and arrangement of each part of the pipe making machine 60 can be changed as appropriate. For example, the reinforcing member bending roller 124 does not necessarily need to be movable in the radial direction of the helical pipe 202.

なお、上で挙げた寸法などの具体的数値および各部材の具体的形状などは、いずれも単なる一例であり、製品の仕様などの必要に応じて適宜変更可能である。 Note that the specific values of the dimensions and the specific shapes of each component listed above are merely examples and can be changed as necessary depending on the product specifications, etc.

１０ …管更生部材
１２ …ライニング部材
１４ …連結部材
１６ …補強部材
６０ …製管機
６２ …螺旋巻きガイド装置
６４ …ライニング部材送り装置
６６ …連結部材ガイド装置
６８ …補強部材送り曲げ装置
７０ …連結装置
７２ …取付装置
１２０ …補強部材送りローラ
１２２ …第１反力受けローラ
１２４ …補強部材曲げローラ
１２６ …第２反力受けローラ
１２８ …モータ
１３２ｂ …第２フレーム（フレーム）
２００ …既設管
２０２ …螺旋管
２１０,２１２ …マンホール LIST OF SYMBOLS 10 Pipe rehabilitation member 12 Lining member 14 Connecting member 16 Reinforcing member 60 Pipe manufacturing machine 62 Spiral winding guide device 64 Lining member feed device 66 Connecting member guide device 68 Reinforcing member feed and bending device 70 Connection device 72 Mounting device 120 Reinforcing member feed roller 122 First reaction force receiving roller 124 Reinforcing member bending roller 126 Second reaction force receiving roller 128 Motor 132b Second frame (frame)
200 ... existing pipe 202 ... spiral pipe 210, 212 ... manhole

Claims (8)

ライニング部材を螺旋状に巻き回すと共に前記ライニング部材の隣り合う側縁部どうしを連結することによって螺旋管を形成しながら、形成した前記螺旋管を既設管内に順次送り込んでいく製管機であって、
前記ライニング部材を螺旋状に巻き回すように案内する螺旋巻きガイド装置、
螺旋状に巻き回した前記ライニング部材の隣り合う側縁部どうしを連結する連結装置、および
螺旋状に巻き回した前記ライニング部材の外面側から補強部材を取り付ける取付装置を備え、
前記取付装置は、
前記補強部材を外面側から押圧して当該補強部材を前記ライニング部材の外面側に取り付けると共に、前記螺旋管に回転力を与える補強部材送りローラ、
前記補強部材送りローラを回転駆動させるモータ、
前記補強部材送りローラと対向する周方向位置に設けられ、前記補強部材送りローラとの間で前記ライニング部材を挟み込むように当該ライニング部材の内面側を押圧する第１反力受けローラ、
前記螺旋管の回転方向における前記補強部材送りローラの下流側の周方向位置に当該補強部材送りローラと所定間隔をあけて設けられ、前記補強部材を外面側から押圧して前記ライニング部材の外面に沿うように前記補強部材を湾曲させる補強部材曲げローラ、および
前記補強部材送りローラと前記補強部材曲げローラとの間の周方向位置に設けられ、前記ライニング部材の内面側を押圧する第２反力受けローラを備える、製管機。 A pipe making machine that forms a helical pipe by helically winding a lining member and connecting adjacent side edges of the lining member, and then sequentially feeds the formed helical pipe into an existing pipe,
a spiral winding guide device for guiding the lining member so as to wind it in a spiral shape;
a connecting device for connecting adjacent side edge portions of the spirally wound lining member, and an attachment device for attaching a reinforcing member to the outer surface side of the spirally wound lining member,
The mounting device comprises:
a reinforcing member feed roller that presses the reinforcing member from the outer surface side to attach the reinforcing member to the outer surface side of the lining member and applies a rotational force to the helical tube;
a motor that rotates the reinforcing member feed roller;
a first reaction force receiving roller provided at a circumferential position opposite to the reinforcing member feed roller and pressing an inner surface side of the lining member so as to sandwich the lining member between the first reaction force receiving roller and the reinforcing member feed roller;
a reinforcing member bending roller provided at a circumferential position downstream of the reinforcing member feed roller in the rotation direction of the helical tube and spaced a predetermined distance from the reinforcing member feed roller, and pressing the reinforcing member from an outer surface side to curve the reinforcing member to conform to the outer surface of the lining member; and a second reaction force receiving roller provided at a circumferential position between the reinforcing member feed roller and the reinforcing member bending roller, and pressing the inner surface side of the lining member. 前記補強部材曲げローラは、前記螺旋管の径方向に移動可能に設けられており、
前記補強部材の曲げ量が調整可能である、請求項１記載の製管機。 the reinforcing member bending roller is provided so as to be movable in a radial direction of the helical tube,
2. The pipe making machine according to claim 1, wherein the amount of bending of the reinforcing member is adjustable. 前記補強部材曲げローラは、当該補強部材曲げローラの軸と平行に配置された揺動軸を支点として揺動可能に設けられたフレームに支持されている、請求項２記載の製管機。 The pipe making machine according to claim 2, wherein the reinforcing member bending roller is supported by a frame that is rotatable about a pivot axis that is arranged parallel to the axis of the reinforcing member bending roller. 前記モータは、前記補強部材曲げローラを回転駆動させるモータと兼用される、請求項１または２記載の製管機。 The pipe making machine according to claim 1 or 2, wherein the motor is also used to rotate the reinforcing member bending roller. 前記取付装置は、前記補強部材を前記ライニング部材に取り付ける、請求項１または２記載の製管機。 The pipe making machine according to claim 1 or 2, wherein the mounting device mounts the reinforcing member to the lining member. 前記取付装置は、前記ライニング部材の連結部分を跨いで覆うように前記補強部材を前記ライニング部材に取り付ける、請求項１または２記載の製管機。 The pipe making machine according to claim 1 or 2, wherein the attachment device attaches the reinforcing member to the lining member so as to straddle and cover the connecting portion of the lining member. 前記連結装置は、前記ライニング部材に外面側から連結部材を取り付けることで、前記連結部材によって前記ライニング部材の隣り合う側縁部どうしを連結し、
前記取付装置は、前記連結部材を覆うように前記補強部材を前記ライニング部材に取り付ける、請求項６記載の製管機。 The connecting device connects adjacent side edge portions of the lining member to each other by attaching a connecting member to the lining member from an outer surface side,
The pipe manufacturing machine according to claim 6 , wherein the mounting device mounts the reinforcing member to the lining member so as to cover the connecting member. 前記連結装置は、前記ライニング部材に外面側から連結部材を取り付けることで、前記連結部材によって前記ライニング部材の隣り合う側縁部どうしを連結し、
前記取付装置は、前記補強部材を前記連結部材に取り付ける、請求項１または２記載の製管機。 The connecting device connects adjacent side edge portions of the lining member to each other by attaching a connecting member to the lining member from an outer surface side,
The pipe making machine according to claim 1 or 2, wherein the mounting device mounts the reinforcing member to the connecting member.

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