JP2008126647A - Tube forming device of tubular body for lining at culvert and tube forming method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mechanism which can introduce predetermined driving in force while supplying a belt-shaped member from inner side of a tubular body to simplify the mechanism in a boosting type tube formation, in which the belt-shaped member is rolled spirally to form the tubular body and the tubular body is extruded and formed by the belt-shaped member freshly supplied behind the formed tubular body. <P>SOLUTION: An outer diameter abutting against a first winding of an outside roller 2 is made larger than prescribed outer diameters of those abutting a second and later windings in a first driving mechanism 4; wherein the mechanism 4 is composed of the outside roller 2 and an inside roller 3, and arranged astride at least first and second windings in a close juncture area of the belt-shaped members. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In the present invention, a long plate-like strip-shaped member is spirally wound to form a tubular body, and the tubular body is delivered and formed with a strip-shaped member newly supplied behind the formed tubular body. Regarding so-called main push type pipe making apparatus and its forming method, in particular, in existing pipes such as sewer pipes, water pipes and gas pipes, a tubular body is inserted into the inner surface of the pipe and a lining layer is constructed. The present invention relates to a pipe lining construction apparatus and its construction method.

In the lining construction in the pipe wall, when the pipe line is a sewer pipe, a pipe making device is installed at the bottom of the manhole, and the belt-like member supplied from the ground by the pipe making device is spirally wound. A so-called “push-in method” is known in which a tubular body is formed by turning and the tubular body is fed into a tube cage (Patent Documents 1 to 4). The strip-shaped member is formed into a long body and joints are formed on both side edges, and a tubular body is formed by engaging joints of the strip-shaped members that are continuously supplied with each other.
FIG. 9 shows a schematic configuration of a conventional pipe making apparatus, so-called lining construction apparatus, used in the former push type construction method.
In the figure, A is a joining mechanism portion composed of rollers a and b, B is a clamping mechanism portion composed of rollers c and d, e is a guide roller, and C is a feed mechanism portion composed of rollers f and g. These are attached to a machine frame (not shown) and driven with hydraulic pressure. Note that a, c, and f are outer rollers, and b, d, and g are inner rollers.
Therefore, in this former push type pipe making apparatus, the belt-like member 100 fed from the upper side, that is, from the ground part in the joining mechanism part A is used to overlap and cover the part previously piped from the outside. Yes, as the diameter of the pipe to be produced gradually increases, the diameter of the pipe cannot be obtained. Further, in order to obtain the diameter of the pipe, the engagement of the belt-like members is performed by the joining mechanism A. If it is made firm, the stress is gradually accumulated, resulting in excessive stress, causing damage to the belt-like member or failure of the apparatus, and causing a defective phenomenon in pipe making.
In order to prevent this, the rotation of the rollers f and g is decelerated by the feed mechanism C more than the rotation of the rollers a and b of the joining mechanism A so that braking is applied and the diameter is narrowed down.
However, this deceleration adjusting mechanism requires a special hydraulic control circuit, which not only takes time for adjusting the rotation of the rollers, but also makes the structure complicated and expensive to manufacture.
Japanese Patent Laid-Open No. 62-20987 JP-A-62-103127 JP 63-30116 A Japanese Patent Laid-Open No. 6-1554846

The present invention has been made in view of the above circumstances, and in the formation of this type of main-push-type tubular body, the mechanism of a conventional pipe making machine is drastically reviewed to make a simple structure and more efficient production. It is an object of the present invention to obtain a novel pipe making apparatus and pipe making method capable of performing a pipe action.
Another object of the present invention is to obtain a lining construction apparatus and a construction method that can be applied to lining construction of a pipe rod with this pipe making apparatus.
For this reason, the present invention modifies the joining mechanism portion in a conventional pipe making machine mainly composed of a joining mechanism portion, a sandwiching mechanism portion, and a feeding mechanism portion that are composed of a sandwiching drive between an outer roller and an inner roller. As a result, not only the feed drive unit can be eliminated, but also the pipe manufacturing control for obtaining a constant diameter can be performed more easily.
In the present invention, a conventional method of forming an annular body by covering the belt-like member 100 fed from the ground on the outside is modified, and pipe manufacturing in a new system (lining method) in which the belt-like member 100 is laminated from the inside is performed. This is achieved by the idea made.

Specifically, the present invention adopts the following configuration.
A first aspect of the present invention is a spirally wound tube manufacturing apparatus, as described in claim 1,
A long belt-like member formed with joints on both side edges and continuously supplied is spirally wound, and the adjacent joints are engaged with each other to form a tubular body. The rear of the formed tubular body A pipe making apparatus for feeding and forming the tubular body with the band-shaped member newly supplied to
An outer surface roller and an inner surface roller which are arranged at a closed portion of the formed tubular body and a newly supplied belt-like member and sandwich and drive the belt-like member, and at least in the first and second rolls A first drive mechanism section arranged across the bridge;
The first drive mechanism section is arranged with a diameter distance, and has an outer roller and an inner roller for sandwiching and driving the belt-like member, and is arranged across at least the first and second rolls. A second drive mechanism portion to be operated;
Have
The newly supplied strip-shaped member is supplied from the inner surface to the tubular body formed by winding the spiral,
In the first drive mechanism,
The outer diameter that contacts the first roll of the outer roller is larger than the outer diameter of the specified diameter that contacts after the second roll.
In the second drive mechanism section, the diameter of the outer surface roller is set to a specified diameter.
It is characterized by that.
The belt-shaped member of the present invention has a buckling resistance and a tensile resistance with a predetermined thickness and rigidity, and has elasticity or plasticity, and its joint configuration is as shown in the following embodiments. The present invention is not limited, and a general one having an engagement structure along the edge of the belt-like member is not excluded.
That is, as will be described in detail in the following embodiment, the engagement of the joint of the belt-shaped member takes a semi-engaged state and a fully-engaged state, but these states are relative and have a predetermined function. Including those that play.
Each mechanism of the present invention is appropriately arranged in the machine frame, but is not limited to the structure of the machine frame, and further, a guide mechanism part for assisting the formation of the tubular body is also appropriately arranged. Needless to say, the mechanism is not particularly required and is not limited to the following embodiments.
In the configuration of the present invention,
1) The inner roller has at least a clamping force, and / or the outer roller has a larger gripping force on the belt-like member than the inner roller,
2) For the inner roller of the first drive mechanism section, the portion that contacts the first roll and the portion that contacts the second roll are separate, and the portion that contacts the first roll is free to rotate, or 1 The part that abuts on the winding and the part that abuts on the second winding may be attached to different axes;
Is an optional matter that is adopted as appropriate.
The above matters are applied to the following second, third and fourth inventions.

(Function)
The first drive mechanism and the second drive mechanism are rotated in synchronization.
The newly supplied belt-like member is supplied from the inner surface to the tubular body formed by spirally winding as a so-called lining type, and the belt-like member of the preceding tubular body and the first drive mechanism section are closed. Engage in position.
In the first drive mechanism, the outer diameter of the outer roller in contact with the first roll is larger than the other, so the peripheral speed increases with the second roll, the feeding speed increases, and the normal diameter A belt-like member longer than the length of is supplied.
That is, a feeding force is applied to the tubular body having a normal diameter from the first drive mechanism to the second drive mechanism. Thus, a bulging action acts on the preceding tubular body to prevent the tubular body from being reduced in diameter.
In the second drive mechanism section, a prescribed peripheral speed is obtained, and a normal diameter is set between the first drive mechanism section.
In particular, in a belt-like member having a main engagement portion and a sub-engagement portion, the main engagement portion acts on the first drive mechanism portion, and the sub-engagement portion is added to the main engagement portion on the second drive mechanism portion. Thereafter, a tubular body having a normal diameter is formed with the first drive mechanism.

The second of the present invention is a pipe lining construction device, as described in claim 2,
In the pipe rod, joints are formed on both side edges thereof, and a long belt-like member that is continuously supplied is spirally wound and the adjacent joints are engaged with each other to form a tubular body. An apparatus used for lining construction for sending and forming the tubular body with the band-shaped member newly supplied to the rear of the tubular body,
An outer surface roller and an inner surface roller which are arranged at a closed portion of the formed tubular body and a newly supplied belt-like member and sandwich and drive the belt-like member, and at least in the first and second rolls A first drive mechanism section arranged across the bridge;
The first drive mechanism section is arranged with a diameter distance, and has an outer roller and an inner roller for sandwiching and driving the belt-like member, and is arranged across at least the first and second rolls. A second drive mechanism portion to be operated;
Have
The newly supplied strip-shaped member is supplied from the inner surface to the tubular body formed by winding the spiral,
In the first drive mechanism portion, the outer diameter that contacts the first roll of the outer roller is larger than the outer diameter of the specified diameter that contacts after the second roll,
In the second drive mechanism section, the diameter of the outer surface roller is set to a specified diameter.
It is characterized by that.

(Function)
The main pipe lining construction apparatus is installed at a fixed position of the pipe rod, and the strip members are sequentially supplied through or without the pipe rod. In addition, the first drive mechanism and the second drive mechanism are driven to rotate in synchronization.
The newly supplied belt-like member is supplied from the inner surface to the tubular body formed by spirally winding as a so-called lining type, and the belt-like member of the preceding tubular body and the first drive mechanism section are closed. Engage in position.
In the first drive mechanism, the outer diameter of the outer surface roller that abuts the first roll is smaller than the other, so the peripheral speed increases from the second roll, the feed speed increases, and this leads to A feeding force is introduced into the tubular body. That is, an expanding action acts on the preceding tubular body, slipping occurs at the engaging portion with the preceding tubular body, and the tubular body is prevented from being reduced in diameter.
In the second drive mechanism section, a prescribed peripheral speed is obtained, and a normal diameter is set between the first drive mechanism section.
In particular, in a belt-like member having a main engagement portion and a sub-engagement portion, the main engagement portion acts on the first drive mechanism portion, and the sub-engagement portion is added to the main engagement portion on the second drive mechanism portion. Thereafter, a tubular body having a normal diameter is formed with the first drive mechanism.

A third aspect of the present invention is a method for producing a spirally wound tubular body, as described in claim 3,
A long belt-like member formed with joints on both side edges and continuously supplied is spirally wound, and the adjacent joints are engaged with each other to form a tubular body. The rear of the formed tubular body A pipe-forming method for delivering and forming the tubular body with the belt-like member newly supplied to
The closed portion of the formed tubular body and the newly supplied belt-shaped member is composed of an outer roller and an inner roller that sandwich and drive the belt-shaped member, and straddles at least the first and second rolls. The first drive mechanism portion arranged is arranged,
The first drive mechanism section is arranged with a diameter distance, and has an outer roller and an inner roller for sandwiching and driving the belt-like member, and is arranged across at least the first and second rolls. A second drive mechanism portion to be arranged,
The newly supplied strip-shaped member is supplied from the inner surface to the tubular body formed by winding the spiral,
In the first drive mechanism portion, the outer diameter that contacts the first roll of the outer roller is larger than the outer diameter of the specified diameter that contacts after the second roll,
In the second drive mechanism portion, the diameter of the outer surface roller is a prescribed diameter,
A feeding force sufficient to prevent the tubular body from being reduced in diameter is added to the belt-like member leading to the second drive mechanism portion.
It is characterized by that.

(Function)
The first drive mechanism and the second drive mechanism are rotated in synchronization.
The newly supplied belt-like member is supplied from the inner surface to the tubular body formed by spirally winding as a so-called lining type, and the belt-like member of the preceding tubular body and the first drive mechanism section are closed. Engage in position.
In the first drive mechanism, the outer diameter of the outer roller in contact with the first roll is larger than the other, so the peripheral speed increases with the second roll, and the feeding speed increases. A feeding force is introduced into the preceding tubular body. That is, an expanding action acts on the preceding tubular body, slipping occurs at the engaging portion with the preceding tubular body, and the tubular body is prevented from being reduced in diameter.
In the second drive mechanism section, a prescribed peripheral speed is obtained, and a normal diameter is set between the first drive mechanism section.
In particular, in a belt-like member having a main engagement portion and a sub-engagement portion, the main engagement portion acts on the first drive mechanism portion, and the sub-engagement portion is added to the main engagement portion on the second drive mechanism portion. Thereafter, a tubular body having a normal diameter is formed with the first drive mechanism.

4th of this invention is the lining construction method in a pipe rod, As described in Claim 5,
At a fixed position in the pipe rod, a long band-shaped member that is continuously formed and supplied to both side edges is spirally wound, and the joints that are in contact with each other are engaged to form a tubular body, A lining construction method for sending and forming the tubular body into a tube cage with the band-shaped member newly supplied to the rear of the formed tubular body,
The closed portion of the formed tubular body and the newly supplied belt-shaped member is composed of an outer roller and an inner roller that sandwich and drive the belt-shaped member, and straddles at least the first and second rolls. The first drive mechanism portion arranged is arranged,
The first drive mechanism section is arranged with a diameter distance, and has an outer roller and an inner roller for sandwiching and driving the belt-like member, and is arranged across at least the first and second rolls. A second drive mechanism portion to be arranged,
The newly supplied strip-shaped member is supplied from the inner surface to the tubular body formed by winding the spiral,
In the first drive mechanism portion, the outer diameter that contacts the first roll of the outer roller is larger than the outer diameter of the specified diameter that contacts after the second roll,
In the second drive mechanism portion, the diameter of the outer surface roller is a prescribed diameter,
A feeding force sufficient to prevent the tubular body from being reduced in diameter is added to the belt-like member leading to the second drive mechanism portion.
It is characterized by that.

(Function)
The lining construction apparatus is installed at a fixed position of the pipe rod, and the belt-like members are sequentially supplied through or without the pipe rod. In addition, the first drive mechanism and the second drive mechanism are driven to rotate in synchronization.
The newly supplied belt-like member is supplied from the inner surface to the tubular body formed by spirally winding as a so-called lining type, and the belt-like member of the preceding tubular body and the first drive mechanism section are closed. Engage in position.
In the first drive mechanism, the outer diameter of the outer roller in contact with the first roll is larger than the other, so the peripheral speed increases with the second roll, and the feeding speed increases. A feeding force is introduced into the preceding tubular body. That is, an expanding action acts on the preceding tubular body, slipping occurs at the engaging portion with the preceding tubular body, and the tubular body is prevented from being contracted.
In the second drive mechanism section, a prescribed peripheral speed is obtained, and a normal diameter is set between the first drive mechanism section.
In particular, in a belt-like member having a main engagement portion and a sub-engagement portion, the main engagement portion acts on the first drive mechanism portion, and the sub-engagement portion is added to the main engagement portion on the second drive mechanism portion. Thereafter, a tubular body having a normal diameter is formed with the first drive mechanism.

In common with the first to fourth inventions, the newly supplied belt-like member is supplied from the inner surface to a tubular body formed by being spirally wound as a so-called lining type. In forming a conventional push-pushing tubular body, a complicated mechanism including a conventional feeding mechanism is simplified, and a predetermined feeding force is immediately introduced from a closing portion, and the tubular body that can be formed has an increased diameter. The machine operation is mainly performed rather than the hydraulic operation, the control is facilitated, and the tubular body is accurately and easily formed, which is epoch-making.
In the first and second apparatuses, since the complicated mechanism including the conventional feeding mechanism section described above is simplified, the apparatus can be reduced in size as the feeding mechanism section is omitted.

DESCRIPTION OF EMBODIMENTS Embodiments of a pipe manufacturing apparatus and a pipe manufacturing method for a lining tubular body in a pipe rod of the present invention will be described with reference to the drawings.
FIGS. 1-6 shows the pipe lining construction apparatus S of one Embodiment of this invention. That is, FIGS. 1 to 3 show the overall schematic configuration of the lining construction apparatus S, and FIGS. 4 to 6 show the characteristic components of this embodiment. FIG. 7 shows the lining construction procedure. FIG. 8 shows one embodiment of the belt-like member.
In addition, if the main pipe lining construction apparatus S is specified for forming a tubular body, it is equivalent to a pipe making machine and is not specified for the lining.
In these drawings, P indicates a pipe rod having a circular cross section, and R indicates a lining pipe manufactured by the lining construction apparatus S. In addition, let the advancing direction (refer arrow A, FIG.4 and FIG.7) of the lining pipe | tube R manufactured by this apparatus S be a front part and a rear part.

Strip member 100 (see FIG. 8)
Prior to the description of the configuration of the construction apparatus S, a belt-like member applied to the construction apparatus S will be described.
FIG. 8 shows an example of a belt-like member applied to the lining construction apparatus S of this embodiment.
The belt-like member 100 has a plate-like body with a constant thickness, and an appropriate number (seven in the example) of ribs (ribs) 102 are continuously provided vertically in the longitudinal direction of the outer surface. A flange 102 a is formed at the tip of the protrusion 102. A groove 104 or a groove space is formed between the protrusions 102. The inner surface 106 is formed to be substantially smooth.
On both sides of the belt-like member 100, joint portions 100A and 100B are formed that are overlapped with each other inside and outside. That is, in the front edge side joint portion 100A, the base portion of the protrusion 102A at the front end is expanded, the concave groove 110 is provided vertically from the inner surface side, and the overhang portion 112 is further provided continuously from the protrusion 102A. The rear edge side joint portion 100B is provided with an overhang portion 114 extending from the protrusion 102B at the rear end portion, and a protrusion 116 that engages with the groove 110 of the front edge side joint portion 100A is vertically disposed near the end portion of the overhang portion 114. Established.
At the time of joining, the front edge portion and the rear edge portion of the adjacent belt-like members 100 overlap each other, and the outer surface roller and the inner surface roller of the drive mechanism portions 4 and 7 described later on the front edge side joint portion 100A. Upon receiving the clamping action, the protrusion 116 is fitted into the groove 110, and the end of the overhang 112 is fitted into the flange 102a of the protrusion 102B, and joined. In this case, the main engagement (main engagement) is made by the groove 110 and the protrusion 116, and the overhanging portion 112 and the protrusion 102B make a subordinate engagement (sub-engagement).
Furthermore, in this embodiment, the sealing material 118 is interposed in the contact part of the overhang | projection parts 112 and 114, and bondability is improved. Note that the sealing material 118 can be omitted if the fitting engagement at the joints 100A and 100B is sufficient.
The belt-shaped member is made of a synthetic resin material, and in particular, from the viewpoint of moldability, a vinyl chloride (PVC) resin that can be continuously formed by extrusion is suitable.
However, the material of the strip member 100 is not limited and can be applied in any manner such as elasticity and plasticity.

Lining construction equipment S (See Figs. 1-6)
As shown in FIGS. 1 to 6, the lining pipe making apparatus S is composed of a steel angle member or a plate-like body, and has a machine frame (frame) 1 having a rectangular tube shape, and the machine frame 1. The first drive mechanism unit 4 that is attached via the outer frame 2 and the inner roller 3 and is driven by the working fluid, is also attached via the machine frame 1 and is symmetrical to the first drive mechanism unit 4. And a second drive mechanism portion 7 having an outer surface roller 5 and an inner surface roller 6 disposed in the same, and the machine frame 1 further includes a guide mechanism portion 9 including a plurality of guide rollers 8. .
In the present invention, the machine casing 1 and the guide mechanism section 9 are not essential matters, and the known portions of the first drive mechanism section 4 and the second drive mechanism section 7 are not essential matters.

Hereinafter, the configuration of each part will be described in detail.
Machine frame 1 (See Figs. 1-3)
The machine frame 1 is formed of a steel angle member or plate-like body, has a square box shape, and is open at the front and rear.
Specifically, the machine casing 1 includes a top plate 12 and a bottom plate 13 on the top and bottom, and side plates 14 on both sides.
The top plate 12 is attached with the guide mechanism 9 (9A), the bottom plate 13 is a mounting base for the first drive mechanism 4 and the second drive mechanism 7, and the other guide mechanism 9 (9B) is also attached. The first drive mechanism unit 4 and the second drive mechanism unit 7 can be attached via the side plate 14. The bottom plate 13 is placed on the bottom surface (invert) of the human hole.
Furthermore, the top plate 12 has an opening 16 through which the strip member 100 passes, and the bottom plate 13 has a recess 17 for receiving a tubular body to be molded.
Details will be sequentially described below.

1st drive mechanism part 4 (refer FIGS. 1-5)
In the first drive mechanism section 4, the outer roller 2 and the inner roller 3 are rotatably held in the mounting box 20 in parallel with each other at a predetermined interval. The outer roller 2 and the inner roller 3 are interlocked by a gear mechanism 21 mounted on the rotary shaft 2a and the rotary shaft 3a. The mounting box 20 is fixed to the bottom plate 13 so that its position can be adjusted. The outer roller 2 and the inner roller 3 have one end of the rotating shaft 2 a interlocked with the hydraulic motor 22, and rotate in opposite directions with the gear mechanism 21. The outer roller 2 is made of a hard material (generally metal), and the inner roller 3 is made of a soft material (generally hard rubber). A communication hole 20 a that communicates with the hydraulic motor 22 is formed in the rear wall of the mounting box 20. In addition, the above structure is well-known.
The outer surface roller 2 and the inner surface roller 3 of the first drive mechanism unit 4 have a belt-like member 100 inserted between them, and are arranged across the belt-like members 100 adjacent to each other over at least the first and second rolls. The member 100 is fed and the belt-like member 100 that has made one round is sandwiched and joined into a tubular shape.
The outer surface roller 2 is composed of a small diameter portion 2A and a large diameter portion 2B. These main body portions are in contact with the belt-like member 100, and an annular housing 2C is protruded from the outer periphery of the main body portion with an appropriate interval. The The housing 2 </ b> C is fitted into the groove 104 between the protrusions 102 of the belt-like member 100 with a gap, and guides the feeding of the belt-like member 100.
The inner roller 3 includes a large diameter portion 3A and a small diameter portion 3B.

2nd drive mechanism part 7 (refer FIGS. 1-4)
Similar to the first drive mechanism section 4, the second drive mechanism section 7 is configured such that the outer roller 5 and the inner roller 6 are rotatably held in parallel within the mounting box body 24 at a predetermined interval. . The outer roller 5 and the inner roller 6 are interlocked with each other by a gear mechanism 25 mounted on the rotating shaft 5a and the rotating shaft 6a. The mounting box 24 is fixed to the bottom plate 13 so that its position can be adjusted. The outer roller 5 and the inner roller 6 have one end of the rotating shaft 5a that is linked to the hydraulic motor 26 and rotates in the opposite direction by the gear mechanism 25. The outer roller 5 is made of a hard material (generally metal), and the inner roller 6 is made of a soft material (generally hard rubber). A communication hole 24 a that communicates with the hydraulic motor 26 is formed in the rear wall of the mounting box 24. In addition, the above structure is well-known.
The outer surface roller 5 and the inner surface roller 6 of the second drive mechanism section 7 have a belt-like member 100 inserted between them, and are disposed across the belt-like members 100 adjacent to each other over at least the first and second rolls. The member 100 is fed and the belt-like member 100 that has made one round is sandwiched and joined into a tubular shape.
The outer roller 5 is in contact with the belt-like member 100 with the same diameter, and an annular casing is provided on the outer periphery of the main body portion with an appropriate interval.
The inner roller 3 has the same diameter.
Therefore, the second drive mechanism unit 7 is arranged at a constant distance from the first drive mechanism unit 4 with a diameter interval of the pipe manufacturing diameter.

Since the drive mechanisms of the first and second drive mechanism units 4 and 7 are substantially the same, the common items will be described below using the first drive mechanism unit 4.
In the first drive mechanism unit 4, the hydraulic motor 22 is fixed to the mounting box 20, driven with a working fluid, incorporates a reduction gear, and a drive shaft 22 a extends in the mounting box 20. The drive shaft 22 a is connected to the drive shaft 2 a of the outer roller 2. The gear mechanism 21 includes a first gear 21a fixed to the drive shaft 2a of the outer surface roller 2 and a second gear 21b fixed to the rotation shaft 3a of the inner surface roller 3. The gear mechanism 21 meshes with each other and performs reverse rotation. . The inner surface roller 3 can be pushed and moved by a hydraulic jack 28 as only schematically shown in FIG.
The second drive mechanism unit 7 is in accordance with the first drive mechanism unit 4, 26 a is a drive shaft of the hydraulic motor 26, 25 a is a first gear of the gear mechanism 25, and 25 b is a second gear. The inner roller 6 is also equipped with a hydraulic jack 28.
This drive system is well-known, and other drive mechanisms can be applied, and is not limited to the illustrated example.

Guide mechanism 9 (see FIGS. 1 and 2)
The guide mechanism unit 9 is mainly composed of the guide roller 8 and is provided with an upper guide mechanism unit 9A attached to the upper surface plate 12 via an attachment plate 30, a lower guide mechanism unit 9B attached to the bottom plate 13 via an attachment plate 31, Consists of. These guide rollers 8 can be adjusted slightly.
These circumscribed circles are formed into a perfect circle by the plurality of guide rollers and the inner rollers 3 and 6 in the normal state.

In this embodiment, the combination aspect of the outer surface roller 2 and the inner surface roller 3 of the first drive mechanism unit 4 is a substantial feature, the arrangement relationship between the first drive mechanism unit 4 and the second drive mechanism unit 7, and The relationship with the strip member 100 is an additional feature.
This will be described in detail below.

1st drive mechanism part 4 (refer FIG.4, FIG.5, FIG.6)
As described above, the first drive mechanism unit 4 includes the outer roller 2 and the inner roller 3, and is disposed across at least the first and second belt members 100. At this time, the belt-like member 100 of the first roll is arranged on the inner surface of the belt-like member 100 with the second roll.
Both the outer roller 2 and the inner roller 3 have a specified diameter portion (2A, 3A) and a non-specified diameter portion (2B, 3B). In the outer surface roller 2, the specified outer diameter is Φ1, the diameter corresponding to the first roll is the unspecified expanded diameter Φ2, and the diameter corresponding to the second or subsequent roll is the specified diameter Φ1. Is done. In the specified outer diameter portion 2B, Φa is a specified outer diameter (enlarged diameter) Φ2 or a slightly smaller diameter (shown in FIG. 5) than the specified outer diameter Φ2, and Φb is a smaller diameter portion. In the inner surface roller 3, the specified outer diameter is Φ3, the diameter corresponding to the first roll is the unspecified reduced diameter Φ4, and the diameter corresponding to the second or subsequent roll is the specified outer diameter Φ3. It is said. The outer roller 2 rotates integrally with the drive shaft 2a. The inner roller 3 is rotated by a drive shaft 3a with a specified diameter portion 3A as a unit, but the outer specified portion 3B is freely rotatable. Although the belt-like member 100 is sandwiched between the outer roller 2 and the inner roller 3 with a pressing action, the gripping force of the outer roller 2 is excellent.

Second drive mechanism 7 (see FIG. 4)
The second drive mechanism unit 7 includes an outer roller 5 and an inner roller 6 and is disposed across at least the first and second belt members 100. Both the outer surface roller 2 and the inner surface roller 3 have a specified diameter.

Strip member 100
In the belt-like member 100, the portion that makes the main engagement, that is, the engagement between the groove 110 and the protrusion 116 (hereinafter referred to as the main engagement portion), the portion that makes the sub-engagement, that is, the overhang portion 112 and the protrusion 102B. (Hereinafter, referred to as a sub-engagement portion) is another characteristic matter of the present embodiment.
That is, although the main engagement portion allows slipping, the overhanging portion 112 is pressed by the protrusion 102B in the sub-engagement portion, an engagement force is applied, and slipping is prevented. In the present embodiment, the engagement by only the main engagement portion takes a half-engagement state, and the engagement by the main engagement portion and the sub-engagement portion takes a full engagement state. Further, the engagement force is further increased by the presence of the sealing material 118.

Since the assembly main construction apparatus S is installed in the manhole, each part can be divided and assembled in order to facilitate carrying in the manhole.

It shows an example of the main specifications of the specification the construction apparatus S.
As for the first drive mechanism 4, the outer diameter Φ1 (standard value) of the outer roller 2 is 61.5 mm, Φ2 is 67.5 mm, the outer diameter Φ3 (standard value) of the inner roller 3 is 60 mm,
Φ4 takes 54 mm. As for the second drive mechanism 7, both the outer roller 5 and the inner roller 6 take the above-mentioned regulation values (61.5 mm, 60 mm). The inner diameter of the tubular body R is 290 to 568 mm.

Tube making (molding of tubular body R)
The forming action of the tubular body performed using the lining construction apparatus S will be described.
The 1st drive mechanism part 4 and the 2nd drive mechanism part 7 make synchronous rotation drive.
[First step]
When the belt-like member 100 is fed into the first drive mechanism section 4, the belt-like member 100 is sandwiched between the outer roller 2 and the inner roller 3, and is fed downward by the feeding force. As described above, the first belt member 100 is supplied from the inner surface of the second roller member 100. Here, in the first roll, the outer roller 2 has a diameter larger than the specified diameter Φ1, and the inner roller 3 has a diameter reduced (partially expanded) than the specified diameter Φ3. The diameter near the trailing edge of 100 is a small diameter. The feeding speed is also larger than the regulation speed due to the enlarged diameter of the outer roller 2.
Then, the entire belt member 100 (100a) of the first roll is pushed in the inner diameter direction by the enlarged diameter portion 2B of the outer roller 2, and the front edge of the first belt member 100a is the second belt member. The protrusion 102A of the joint portion 100A at the rear edge of the member 100b is pushed in the inner diameter direction by the enlarged diameter portion 2B that is also outside the specified diameter, and the groove 110 is a protrusion at the front end of the preceding strip-shaped member 100a. 116. That is, in the engaging portion 100B at the front edge of the belt-like member 100a, the main engaging portion engages with the rear edge of the second belt-like member 100.
As will be described later, the enlarged diameter portion 2B of the outer surface roller 2 has a function of pressing the belt-shaped member 100a in the inner diameter direction, and has a large circumferential length, a high peripheral speed, and a feed amount of the belt-shaped member 100a. Increase.
Further, in the present embodiment, the diameter Φa of the specified outer diameter portion of the outer surface roller 2 that contacts the protrusion 102A of the second band member 100 (100b) is slightly smaller than the specified outer diameter Φ2. After a pushing force is applied to the protrusion 102 of the 100b in the inner diameter direction and the groove 110 and the protrusion 116 are engaged, there is a slight gap between the diameter portion of the roller 2 and the flange of the belt-like member 100a. Of void α. Due to this α, an excessive pressing force from the outer surface roller 2 is not applied. In addition, this α, that is, Φa is designed, and if allowed, Φa can adopt the same diameter as Φ2 or a diameter different from the illustrated example.
On the other hand, in the Φb portion of the specified outer diameter portion 2B, the protrusion 102 at the front end of the first roll of belt-like member 100a and the protruding portion 112 of the second roll of belt-like member 100b are not given pressing, and the sub-engagement portion Is off.
Therefore, the said part (a part of FIG. 5) will be in a semi-engagement state.
In this state, it is fed into the second drive mechanism portion 7 via the lower guide mechanism portion 9B.
FIG. 6 schematically shows the first process. That is, the chain double-dashed line portion in the figure indicates the expanded diameter state accompanying the increase in the feed amount of the belt-like member 100.

[Second process]
In the second drive mechanism section 7, the outer roller 5 and the inner roller 6 maintain a specified diameter, and the engaging portion at the front edge of the first belt member 100 is the rear of the preceding second belt member 100. The edge and the sub-engagement portion are engaged and integrated with the main engagement portion (this state is equivalent to the portion b in FIG. 5. In this portion, the main engagement and the sub-engagement are engaged). That is, all engagement is achieved. The belt-like member 100 is sandwiched between the outer roller 5 and the inner roller 6 and is sent out by the feeding force.
In this state, the upper part of the belt-like member 100 of the first volume is sent to the first drive mechanism part 4 through the upper guide mechanism part 9A while maintaining the diameter.

[Third process]
When the second roll is reached, the outer roller 2 and the inner roller 3 have the prescribed diameters in the first drive mechanism unit 4, so that the normal state is maintained, in other words, the state of the second drive mechanism unit 7 is changed. The belt-like member 100 of the second roll is held in the fully engaged state, and a forward feeding force is given by the clamping force between the outer roller 2 and the inner roller 3. In the example shown in FIG. 5 (FIG. 5), the outer roller 2 and the inner roller 3 of the first drive mechanism unit 4 do not reach the third belt member 100, but this state is not excluded.
As a result, the diameter of the lining pipe R is determined as a specified diameter by the second drive mechanism portion 7 and the first drive mechanism portion 4 in the second process, and the peripheral speeds of the rollers 2, 3, 5, 6 are determined. Is sent forward (b).

[Fourth process]
Thereafter, the belt-like member 100 is fed forward while maintaining a regulated diameter between the first drive mechanism portion 4 and the second drive mechanism portion 7.

[Pipe making]
It should be noted that in the above-described action, in the first process, the newly supplied belt-like member is supplied from the inner surface of the tubular body, and the first volume is the engagement of the preceding second volume and the main engagement portion. Thus, since it is in a semi-engaged state and the feed speed is high, slippage occurs at the engaging portion, and swelling due to an increase in the amount of feeding occurs at the half-circumferential portion. Here, a pushing force is added to the pipe making operation by the winding action.
In the second process, the first roll is fully engaged with the preceding second roll due to the specified diameter. However, in response to the pushing force in the first process, it is allowed that a slight slip occurs in the engaging portion.
In the third step, the second winding slips when the trailing edge is engaged with the first winding, but the leading edge is fully engaged with the third winding and is tubular with the corresponding second drive mechanism 7. The normal diameter of the body is maintained.
As is clear from the above, an additional feeding force is introduced by the first drive mechanism unit 4 at the rear end of the tubular body of the band-shaped member 100, and the thinning is prevented from being formed in the tubular body, and the conventional feeding mechanism unit is A regular tubular body that is not inferior to the pipe making machine is formed.
Further, it is a great feature that the rotation system of the hydraulically driven roller is simplified and the control by the hydraulic pressure is facilitated.

Lining construction The lining construction in the pipe rod using the lining construction apparatus S will be described.
FIG. 7 shows an outline of a construction example in a sewer pipe.
In the figure, Q indicates a human hole and P indicates a circular tube rod. H is an invert at the bottom of the human hole Q, and I is an upper surface of the invert H. E indicates the ground, and T indicates the road surface.
In the ground portion, a feeding device (not shown) for the belt-like member 100 is installed, and the belt-like member 100 is continuously connected to the lining construction device S installed in the human hole Q from the opening O of the human hole Q by this feeding device. To be supplied. Reference numeral 200 denotes a hydraulic pressure source.

The lining construction is done based on the following procedure.
(1) The lining construction apparatus S is carried into the manhole Q and installed in the invert H at the bottom of the manhole Q.
In this installation, the bottom plate 13 of the construction apparatus S is placed on the upper surface I of the invert H of the human hole Q, and the formed tubular body R matches the curvature of the groove of the invert H. The hydraulic drive source 200 arranged on the ground is connected to each hydraulic part of the construction apparatus S through a hydraulic pipe 210.
(2) The initial tubular body R is formed by the initial movement operation of the drive mechanisms 4 and 7 of the lining construction apparatus S from the belt-like member 100 drawn out from the ground.
(3) After the initial tubular body R is formed, the belt-like member 100 sequentially supplied from the ground is continuously driven through the lining construction apparatus S, and the drive mechanisms 4 and 7 are driven synchronously. Thereby, as for this construction apparatus S, the tubular body R is formed by the intended function, and the tubular body R advances in the pipe rod P. As shown in FIG.
Since the belt-like member 100 newly supplied from the ground is supplied from the inner surface side of the tubular body R, the formed tubular body R tends to swell, but an additional action of the desired pushing force is applied. Thus, the tubular body R can maintain a regular diameter.
(4) When the tubular body R reaches the next human hole Q (not shown), the driving of the construction device S is stopped, the construction device S is disassembled and removed, and the inside of each human hole Q is projected. The tubular body R that has been removed is excised.
(5) In each human hole Q, the space between the tube ridge P and the tubular body R is sealed, and a caking backfill material 220 is injected into the gap between the tube ridge P and the tubular body R over the entire length of the tube ridge P. The lining work is completed after waiting for the consolidation.

In the above, the formation of the tubular body R is as described above, and an appropriate feeding force (pushing force) is introduced in the first drive mechanism portion 4, and the second drive mechanism portion 7 and the subsequent pipes have a fixed diameter. The body R is molded.
The aspect of this construction apparatus S is an example, and each process can be changed according to a condition. For example, height adjustment on the invert surface, installation of the hydraulic power source 200 in the human hole Q, or omission of the backfill material 220 is omitted as appropriate.

(Effect of this embodiment)
According to the lining construction in the pipe rod of this embodiment, the construction is carried out in a state where the sewage flows, and it becomes unnecessary to secure a bypass flow path, so that the construction can be made economically. In addition, the construction apparatus S has a simpler mechanism than that of the conventional one, so that it can be downsized and is suitable for narrow sewage manholes. The reduction in machine height associated with the omission of the conventional feed mechanism portion also contributes to the ease of construction.

The present invention is not limited to the above-described embodiments, and various design changes can be made within the scope of the basic technical idea of the present invention. That is, the following aspects are included in the technical scope of the present invention.
1) The drive source has a hydraulic type in the present embodiment, but may be driven with air pressure or electric power.

The front view which shows one Embodiment of the lining construction apparatus for pipe rods of this invention. The rear view of FIG. FIG. 3 is a sectional view taken along line 3-3 in FIGS. 1 and 2. The schematic block diagram which shows the piping relationship of a 1st, 2nd drive mechanism part. Detailed view of the first drive mechanism. Explanatory drawing which shows the working principle of this construction apparatus. Schematic diagram of lining construction in pipes. (a) The figure is sectional drawing which shows the one aspect | mode of the strip | belt-shaped member used by this invention. (b) The drawing is a cross-sectional view showing the bonding relationship between the belt-like members. The mechanism outline figure of the conventional lining construction apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS S ... Pipe rod lining construction apparatus, P ... Pipe rod, R ... Tubular body (lining pipe), 1 ... Machine frame, 2 ... Outer surface roller, 2A ... Prescribed diameter part, 2B ... Expanded diameter part, 3 ... Inner surface roller, 3A: Specified diameter part, 3B: Reduced diameter part, 4 ... First drive mechanism part, 5 ... Outer roller, 6 ... Inner roller, 7 ... Second drive mechanism part, 8 ... Guide roller, 9 ... Guide mechanism part, 100 ... Strip member, 100A, 100B ... Joint part, 110, 116 ... Main engagement part, 112,102B ... Sub-engagement part

Claims (6)

A long belt-like member formed with joints on both side edges and continuously supplied is spirally wound, and the adjacent joints are engaged with each other to form a tubular body. The rear of the formed tubular body A pipe making apparatus for feeding and forming the tubular body with the band-shaped member newly supplied to
An outer surface roller and an inner surface roller which are arranged at a closed portion of the formed tubular body and a newly supplied belt-like member and sandwich and drive the belt-like member, and at least in the first and second rolls A first drive mechanism section arranged across the bridge;
The first drive mechanism section is arranged with a diameter distance, and has an outer roller and an inner roller for sandwiching and driving the belt-like member, and is arranged across at least the first and second rolls. A second drive mechanism portion to be operated;
Have
The newly supplied strip-shaped member is supplied from the inner surface to the tubular body formed by winding the spiral,
In the first drive mechanism,
The outer diameter that contacts the first roll of the outer roller is larger than the outer diameter of the specified diameter that contacts after the second roll.
In the second drive mechanism section, the diameter of the outer surface roller is set to a specified diameter.
A spirally wound pipe making device. In the pipe rod, joints are formed on both side edges thereof, and a long belt-like member that is continuously supplied is spirally wound and the adjacent joints are engaged with each other to form a tubular body. An apparatus used for lining construction for sending and forming the tubular body with the band-shaped member newly supplied to the rear of the tubular body,
An outer surface roller and an inner surface roller which are arranged at a closed portion of the formed tubular body and a newly supplied belt-like member and sandwich and drive the belt-like member, and at least in the first and second rolls A first drive mechanism section arranged across the bridge;
The first drive mechanism section is arranged with a diameter distance, and has an outer roller and an inner roller for sandwiching and driving the belt-like member, and is arranged across at least the first and second rolls. A second drive mechanism portion to be operated;
Have
The newly supplied strip-shaped member is supplied from the inner surface to the tubular body formed by winding the spiral,
In the first drive mechanism portion, the outer diameter that contacts the first roll of the outer roller is larger than the outer diameter of the specified diameter that contacts after the second roll,
In the second drive mechanism section, the diameter of the outer surface roller is set to a specified diameter.
The lining construction equipment in the pipe cage characterized by this. A long belt-like member formed with joints on both side edges and continuously supplied is spirally wound, and the adjacent joints are engaged with each other to form a tubular body. The rear of the formed tubular body A pipe-forming method for delivering and forming the tubular body with the belt-like member newly supplied to
The closed portion of the formed tubular body and the newly supplied belt-shaped member is composed of an outer roller and an inner roller that sandwich and drive the belt-shaped member, and straddles at least the first and second rolls. The first drive mechanism portion arranged is arranged,
The first drive mechanism section is arranged with a diameter distance, and has an outer roller and an inner roller for sandwiching and driving the belt-like member, and is arranged across at least the first and second rolls. A second drive mechanism portion to be arranged,
The newly supplied strip-shaped member is supplied from the inner surface to the tubular body formed by winding the spiral,
In the first drive mechanism portion, the outer diameter that contacts the first roll of the outer roller is larger than the outer diameter of the specified diameter that contacts after the second roll,
In the second drive mechanism portion, the diameter of the outer surface roller is a prescribed diameter,
A feeding force sufficient to prevent the tubular body from being reduced in diameter is added to the belt-like member leading to the second drive mechanism portion.
A method for producing a spirally wound tubular body.   The tube-shaped spirally wound tubular body according to claim 3, wherein the belt-like member takes a half-engaged state from the first drive mechanism part to the second drive mechanism part, and takes the full-engagement state after the second drive mechanism part. Method. At a fixed position in the pipe rod, a long band-shaped member that is continuously formed and supplied to both side edges is spirally wound, and the joints that are in contact with each other are engaged to form a tubular body, A lining construction method for sending and forming the tubular body into a tube cage with the band-shaped member newly supplied to the rear of the formed tubular body,
The closed portion of the formed tubular body and the newly supplied belt-shaped member is composed of an outer roller and an inner roller that sandwich and drive the belt-shaped member, and straddles at least the first and second rolls. The first drive mechanism portion arranged is arranged,
The first drive mechanism section is arranged with a diameter distance, and has an outer roller and an inner roller for sandwiching and driving the belt-like member, and is arranged across at least the first and second rolls. A second drive mechanism portion to be arranged,
The newly supplied strip-shaped member is supplied from the inner surface to the tubular body formed by winding the spiral,
In the first drive mechanism portion, the outer diameter that contacts the first roll of the outer roller is larger than the outer diameter of the specified diameter that contacts after the second roll,
In the second drive mechanism portion, the diameter of the outer surface roller is a prescribed diameter,
A feeding force sufficient to prevent the tubular body from being reduced in diameter is added to the belt-like member leading to the second drive mechanism portion.
The lining construction method in a pipe tub characterized by this.   The lining construction method in a pipe rod according to claim 5, wherein the belt-like member takes a half-engaged state from the first drive mechanism part to the second drive mechanism part, and takes a fully-engaged state after the second drive mechanism part. .

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