JPH08261363A - Method and device for applying lining on pipe conduit in deformed section - Google Patents

Abstract

PURPOSE: To cope with a pipe conduit in a deformed section by a method wherein a belt-like member having two side edges between which a joint is formed is continuously fed and helically wound and the joints making contact with each other are joined together by an applying device, containing a molding frame where a number of guide rollers are interconnected, to additionally form a lining pipe. CONSTITUTION: When a pipe conduit is applicable for a sewerage work, a belt-like member 100 is wound from a manual work position several times to produce a lining pipe R for a start. A lining applying device S containing a mold frame 1 where a number of guide rollers 2 are interconnected is incorporated in the inner side of the lining pipe R for a start. The inner and outer surface rollers 3 and 4 of the joining mechanism part 5 of the applying device S are rotated and by the nipping force of the two members, the joints making contact with each other of the belt-like member 100 are joined together. Simultaneously, through the engagement guide work of the annular flange part of the outer surface roller 4 and the groove of the belt-like member 100, the whole of the applying device S is revolved in the peripheral direction of a pipe and advanced in the axial direction of the pipe, and the belt-like member 100 is helically wound to orderly manufacture a lining pipe R.

Description

Detailed Description of the Invention

A. OBJECT OF THE INVENTION (1) Industrial field of application The present invention is not limited to a circular general cross section in existing sewer pipes such as sewer pipes, water supply pipes, and gas pipes, but has an irregular cross section such as a rectangle or an oval. Regarding a pipe, a lining construction method for constructing a lining layer on the inner surface of the pipe and a lining construction device used for carrying out the method,
More specifically, a lining construction method and a lining construction apparatus for inserting a tubular body, which is formed by spirally winding a strip-shaped member made of a long plate-shaped member, into a pipe with a rectangular cross section Regarding

(2) Conventional Technology As one aspect of a lining construction technology for a pipe having a general circular cross section, for example, Japanese Patent Publication No. 2-312136 is known. That is, in this conventional technique, a lining pipe formed by spirally winding a continuously supplied strip-shaped member is started from a pipe-making machine installed in a human hole of the pipe and rotated in an existing pipe. It is sent with movement, that is, thrust force. However, according to this conventional technique, as the lining pipe becomes longer,
In addition to the increase in the weight, the frictional resistance between the outer surface of the lining pipe and the pipe wall of the pipe is increased, and a large thrust force is required. In addition, the weight per unit length increases as the diameter increases, and a larger thrust force is required. For this reason, the power equipment becomes large in size to obtain the necessary thrust force, and the equipment cost increases. Therefore, in this conventional technology, lengthening and
There is a problem in increasing the diameter. Furthermore, in this conventional technique, it is also a problem that the bending of the pipe cannot be dealt with.

Therefore, in order to solve this problem, the applicant of the present invention previously disclosed in Japanese Patent Laid-Open No. 5-169539 (hereinafter, referred to as prior application technology) in which a strip-shaped body is spirally wound in a pipe and mutually Has proposed a lining construction method for the inner peripheral surface of the pipe, in which the spiral pipe is manufactured by engaging the side edges of the strips adjacent to each other and the inner peripheral surface of the pipe is lined by the spiral pipe. According to this, since the lining pipe is additionally formed with the band-shaped member newly supplied in front of the running pipe to be manufactured, it is possible to realize the production of the long lining pipe. However, in this prior-art technique, the frame body to which the pipe-making roller is attached at the pipe-making site is rigid, and is limited to application to a pipe with a circular cross section. That is, with respect to a pipe with a rectangular cross section, not only the frame does not sufficiently reach the right angled corner, but also the joining at the corner becomes unstable, which limits its application.

(3) Problem to be Solved by the Invention The present invention is a further development of this prior art, and is not limited to a circular general cross section, but to a pipe having a modified cross section such as a rectangle or an oval. It is an object of the present invention to provide a lining construction technique in a pipe with a modified cross section that can also be applied.

[0005] b. Configuration of the Invention (1) Means for Solving the Problems In order to achieve the above-mentioned object, the lining construction method and the construction apparatus for the lining in the irregular cross section pipe of the present invention have the following configurations. That is, the first aspect of the present invention relates to a lining construction method in a modified cross-section pipe, and as described in claim 1, in the modified cross-section pipe, a long strip-shaped member having joints formed on both side edges. Is continuously fed and spirally wound, and the tubular body formed by joining the mutually joined joint parts is left, and a band-shaped member newly fed is provided in front of this already formed tubular body. A method of additionally forming a lining pipe, having a predetermined width and lateral rigidity,
A guide roller that is in contact with the inner surface of the belt-shaped member is mounted around the molding frame that is flexible and has a link mechanism and in which the center bending of each link body is prevented, and the molding frame has a tubular body already formed. At the end edge portion, a joining roller portion composed of two rollers, an outer surface roller abutting on the outer surface of the belt-shaped member and an inner surface roller abutting on the inner surface of the belt-shaped member, is provided, and the roller in the joining roller portion is driven to rotate. It is characterized in that it is sandwiched between the two outer and inner rollers at the position where the tubular body already formed and the band-shaped member to be newly supplied are joined to each other. A second invention is a construction device for carrying out the first invention,
As described in claim 2, a long strip-shaped member having joints formed on both side edges is continuously supplied and spirally wound in the modified cross-section pipe, and the joints that contact each other are engaged with each other. A lining construction device that is formed by joining together to form a tubular body, and has a predetermined width and lateral rigidity, and is formed by a link mechanism so that the linking frame can be flexibly bent to prevent center bending of each link body. A guide roller that is mounted around the molding frame and abuts on the inner surface of the tubular body, and a joint portion between the already formed tubular body and a newly supplied belt-shaped member that is attached via the molding frame. It is characterized by comprising a joining mechanism portion which is arranged at a position and which has an outer surface roller and an inner surface roller for sandwiching a strip-shaped member. In addition,
The above-mentioned first and second inventions do not exclude the application to circular cross-section pipes.

A third aspect of the present invention relates to still another method for lining a pipe in a modified cross-section pipe, and as described in claim 3, in the modified cross-section pipe, a length in which joints are formed at both side edges is provided. A strip-shaped member of continuous length is continuously supplied and spirally wound, and a tubular body formed by joining mutually adjoining joint parts is left, and is newly supplied in front of this already formed tubular body. A method of additionally forming a lining pipe with a strip-shaped member, wherein a guide roller having a predetermined width and lateral rigidity and having a link mechanism is provided around the flexible frame around which the guide roller is in contact with the inner surface of the strip-shaped member. ,
In addition, a joining roller portion including two rollers, an outer surface roller contacting the outer surface of the belt-shaped member and an inner surface roller contacting the inner surface of the belt-shaped member, is arranged on the molding frame at the edge portion of the already formed tubular body. Then, the roller in the joining roller portion is driven to rotate, and the two outer and inner rollers are sandwiched between the already formed tubular body and the newly-supplied belt-like member at the joining portion mutual position, It is characterized in that the molding frame is arranged inside the molding frame, and is rotated around a restriction frame which maintains rigidity and has a shape matching the irregular cross-sectional shape. 4th invention is a construction apparatus which implements 3rd invention, Comprising: As described in Claim 4, in a modified cross-section pipe, the elongate strip | belt-shaped member which the joint part was formed in the both side edge parts. Is a continuous supply and spirally wound, is a lining construction device that is formed by engaging mutually adjacent joints to form a tubular body, having a predetermined width and lateral rigidity, A flexible frame having a link mechanism, a guide frame that is mounted around the molding frame and abuts against the inner surface of the tubular body, and is attached via the molding frame, and is newly supplied with the already formed tubular body. And a joining mechanism portion including an outer roller and an inner roller for sandwiching the belt-shaped member, which are arranged at the positions of the joints with the belt-shaped member, and arranged inside the molding frame to maintain rigidity and have an irregular cross-sectional shape. Guide rail The a, characterized by comprising the regulatory frame, for restricting the movement of the forming frame.

(2) Action In the invention of the first lining construction method in the irregular cross section pipe, the shape and perimeter of the molding frame are selected so as to match the cross section of the irregular cross pipe. At the closed portion of the belt-shaped member, the outer and inner rollers of the joining roller portion are engaged with each other by the sandwiching action of the joining rollers. The joining roller portion is always located at the closed portion, and advances in the pipe axis direction at a predetermined pitch together with the newly supplied belt-shaped member. As a result, the present construction apparatus revolves around the whole, and the belt-shaped members are continuously closed to form the lining pipe. In forming the lining pipe, the molding frame is flexible and prevented from being bent in the middle, so that the lining pipe is formed along the inner circumference of the pipe and conforms to the irregular cross section. In a mode in which the outer surface roller and the concave groove formed on the outer surface of the belt-shaped member engage with each other, reliable feeding can be obtained. In the lining construction device in the irregular cross-section pipe according to the second aspect of the invention, the shape and perimeter of the forming frame are selected so as to match the cross-section of the irregular cross-section pipe.

In the lining construction method in the modified cross section pipe according to the third aspect of the present invention, the shape and circumference of the regulating frame are selected so as to match the cross section of the modified cross section pipe. The strip-shaped members newly supplied by the joining roller portion of the molding frame are closed to form a lining pipe. In addition, the molding frame is forced to move by the restriction frame, and the band-shaped member is plastically deformed to form a lining pipe having an irregular cross section that matches the shape of the restriction frame. In the lining construction device in the modified cross section pipe according to the fourth aspect of the present invention, the regulation frame is selected to have a shape and a perimeter suitable for the cross section of the modified cross section pipe.

(3) Embodiments Embodiments of a lining construction method and a construction apparatus for the modified sectional pipe according to the present invention will be described with reference to the drawings. (First Embodiment) FIGS. 1 to 12 show an embodiment (first embodiment) of a lining construction device for a modified cross section pipe according to the present invention.
In this embodiment, an example of application to a pipe with a rectangular cross section as a modified cross section is shown. That is, FIG. 1 and FIGS. 2 and 3 show the outline of the entire lining construction apparatus S, and FIGS.
Shows the configuration of each part of the lining construction device S. Also,
19 to 21 show various aspects of the belt-shaped member. In these figures, P indicates a pipe having a rectangular cross section, and R indicates a lining pipe. In addition, the traveling direction (arrow a) of the apparatus S is referred to as a front portion and a rear portion.

Band-shaped members 100, 120, 140 FIG. 19 shows an example of the band-shaped members used in the lining work of this embodiment. The belt-shaped member 100 has a plate-shaped body having a constant thickness, and an appropriate number (7 in the illustrated example) of ridges 102 are vertically provided continuously on the outer surface in the longitudinal direction. Ridge 10
2, a flange 102a is formed at the tip. Ridge 1
A groove 104 or a groove space is formed between the two. The inner surface 106 is formed to be substantially smooth. Band-shaped member 100
Joints 100 that overlap with each other on both sides of the
A, 100B is formed. That is, the front edge side joint portion 1
In 00A, the base of the protrusion 102A at the front end is expanded,
A concave groove 110 is vertically provided from the inner surface side, and the ridge 1
The overhang portion 112 is continuously provided from 02A. The rear edge side joint portion 100B has a projecting portion 114 stretched from a rear end portion of the protrusion 102B, and a convex strip 116 that engages with the concave groove 110 of the front edge side joint portion 100A is vertically provided near the end portion of the projecting portion 114B. Set up. At the time of joining, the leading edge portion and the trailing edge portion of the adjacent strip-shaped members 100 overlap each other, and the trailing edge side joining portion 100B causes the trailing edge side joining portion 100B to sandwich the outer surface roller and the inner surface roller of the joining roller portion described later. In response to this, the ridge 116 is formed in the groove 110, and the flange 102 of the ridge 102B is also formed.
The ends of the overhanging portions 112 are fitted in and joined to a. In this case, the main engagement is the groove 110 and the ridge 11.
6, the overhanging portion 112 and the ridge 102B are in a secondary engagement, so that a secondary engagement may be omitted in some cases. Further, in the present embodiment, a seal material 118 is interposed at the abutting portions of the overhanging portions 112 and 114 to enhance the bondability. The joints 100A, 100
If the fitting engagement in B is sufficient, the sealing material 11
8 can be omitted. The belt-shaped member is made of a synthetic resin material, and in particular, vinyl chloride (PVC) resin that can be continuously molded by extrusion forming is preferable from the viewpoint of moldability. However, it does not prevent the metal molding.

FIG. 20 shows another embodiment of the belt-shaped member. In this belt-shaped member 120, an appropriate number of trapezoidal projections 122 are continuously provided in the longitudinal direction of the outer surface, and valleys 124 are formed between the projections 122. The ridges 122 and the valleys 124 have the same pitch in the width direction. A hollow portion is appropriately formed inside the protrusion 122, so that the belt-shaped member can be made rigid and lightweight. The inner surface 126 is formed to be substantially smooth. On both sides of the belt-shaped member 120, joint parts 120A and 120B are formed which are overlapped with each other and engage with each other. That is, the ridges of the outer joint portion 120A are formed in the same shape as the ridges 122, and the circular concave groove 130 is vertically provided on the inner surface thereof.
32 is slightly longer than the width of the valley portion 124. The inner joint portion 120B has a bulge portion 134 having a length substantially longer than that of the valley portion 124, and a round end groove of the outer joint portion 120A is engaged with an end portion of the bulge portion 134. The convex ridge 136 is vertically provided, and the notch groove 138 is vertically provided in the ridge 122 at the base portion thereof.
At the time of joining, the inner joint portion 12 is connected to the outer joint portion 120A.
0B is pressed by the outer surface roller and the inner surface roller of the joining roller portion, and the round ridge 136 is formed in the round groove 130 again.
The ends of the overhanging portions 132 are fitted into the notch groove 138 and joined together.

FIG. 21 shows another embodiment of the belt-shaped member.
This is made up of a combination of a main material (main belt-shaped member) 140 and a fitting material 150. The main material 140 has a ridge 142 and a groove 144, and the joints 140A, 140 are provided at both ends thereof.
B is formed, and the fitting groove 1 is formed in the joints 140A and 140B.
46 is formed. Further, the fitting member 150 has a fitting protrusion 152 that is elastically fitted into the fitting groove 146 of the main member 140. At the time of joining, the fitting member 150 is joined across the joining portions 140A and 140B of the main members 140 arranged side by side.

Lining construction device S (see FIGS. 1 to 12) The configuration of the lining construction device S of the present embodiment will be described with reference to FIGS. As shown in FIGS.
This lining construction device S is arranged on a molding frame 1 that forms a bendable ring-shaped body with a link mechanism having a predetermined width and composed of a plurality of link bodies, and each shaft portion of the link mechanism of the molding frame 1. A plurality of guide rollers 2 and main / sub joining mechanism portions 5 (main joining mechanism portion 5A and sub joining mechanism portion 5B) that are attached to the molding frame 1 at two opposite positions and include an outer roller 3 and an inner roller 4. ), Consists of the main parts of. 1 and 2 show a position 1 in the middle of pipe making of the present apparatus S, and FIG. 3 shows a position 2.

The detailed structure of each part will be described below. Molding Frame 1 (See FIGS. 1 to 7) The molding frame 1 has an annular body with a required width, and has a link mechanism that allows it to flex in the outer diameter direction.
It also has lateral rigidity. Then, this annular body forms a link chain in which a plurality of link bodies are connected, and in the present embodiment, it is composed of 24 link bodies, but the number is not limited. More specifically, as shown in FIGS. 4 and 5, each link body has a rod-shaped shaft portion 10 having a required length, and a space between adjacent shaft portions 10 at both front and rear end portions of the shaft portion 10. And a plate-shaped link arm 12 rotatably connected to the bearing via a bearing 11. The link arms 12 can be bent outwardly with respect to each other at 180 °, but middle bending is prevented. Therefore, a center bending prevention mechanism is provided, and an example thereof is shown in FIG. That is, the main stopper 14 is provided at the end of one of the link arms 12 (I) so as to project from the other end of the other link arm 1.
2 (II) is fixedly provided with a stopper receiver 15 projecting toward the side of the link arm 12 (I). The main stopper 14 and the stopper receiver 15 come into contact with each other to prevent center bending. Reference numeral 16 is a sub-stopper that regulates the outer bending angle (α).

Guide roller 2 (see FIGS. 1 to 5 and 7) The guide roller 2 is rotatably mounted on each shaft portion 10 of the molding frame 1. The guide roller 2 is a shaft portion 1 in this embodiment.
Although it is integrally attached to No. 0, there is also a mode in which it is attached via a bearing. The roller body is made of a hard synthetic resin body or a metal body, and contacts the inner surface of the belt-shaped member 100. The standard guide roller 2 (2a) has the length of the inner width of the link body, but the required number of guide mechanism 2 (usually 1) at the front part of the guide mechanism 2 (2b) to be described later is the strip-shaped member 100. Is shortened by the width (see FIG. 7).

Joining Mechanism Section 5 (See FIGS. 1 to 3 and 7 to 12) The joining mechanism section 5 is mounted at diagonal positions of the molding frame 1 with the main and sub joining mechanism sections 5A and 5B forming a pair. It The joining mechanism portion 5 is mainly composed of a joining roller portion 20 in which an inner surface roller 3 and an outer surface roller 4 are paired, and a box body 2 containing a gear mechanism 21 for synchronizing the rotation of the rollers 3 and 4.
2 and a hydraulic motor 23 attached to the box body 22 as a rotation drive source for the rollers 3 and 4, and the main joining mechanism portion 5
A is arranged corresponding to the joint portion of the strip-shaped member 100 wound in a spiral shape, that is, the position where the strip-shaped member 100 is first closed. The inner surface roller 3 is mounted on the shaft portion 10 of the molding frame 1 like the guide roller 2.

(Joining Roller Section 20) (See FIG. 8) In the joining roller section 20, the inner surface roller 3 and the outer surface roller 4 are arranged side by side in the tube axis direction, and a belt-shaped member is provided between the rollers 3, 4. 100 are arranged at a predetermined interval so as to sandwich them. The rollers 3 and 4 are rotationally driven in association with the drive shaft of the gear mechanism. The detailed structure of the joining roller unit 20 will be described with reference to FIG. FIG. 8 is an enlarged view of the two rollers 3 and 4 on the inner surface and the outer surface of the joining roller portion 20, and at the same time, these rollers 3 and 4 and the belt-shaped member 10 are shown.
The correspondence with 0 is shown. As shown, in the present embodiment, these rollers 3 and 4 are arranged over a plurality of (three in this embodiment) spans of the belt-shaped member 100. Further, H indicates the first closed portion between the strip-shaped members 100. The main joining mechanism portion 5A is arranged corresponding to the first closing portion H. Therefore, the guide roll 2 (2
b) is shortened by one span of the belt-shaped member 100, so that the belt-shaped member can be retracted. The inner surface roller 3 has a cylindrical shape, is in close contact with the inner surface of the belt-shaped member 100, and includes the closing portion H.
A belt-shaped member 10 which is pressed from the outside by the outer surface roller 4.
Support 0. It is to be noted that the inner diameter roller 3 has an enlarged diameter portion 3a formed at a front end portion thereof, and a flange 3b engaging with the groove 110 on the inner surface of the strip-shaped member 100 is projected on the enlarged diameter portion 3a. May be omitted. The outer roller 4 is a cylindrical body 25.
A plurality of ring-shaped flange portions 26 are formed at predetermined intervals on the ring-shaped flange portions 26.
It fits in the groove 104 between the two. The outer circumference of the cylindrical body 25 is pressed against the outer surface of the ridge 102 of the belt-shaped member 100.
The outer surface of the cylindrical body 25 is knurled to prevent slippage with the belt-shaped member 100. Further, a part 25a thereof has a small diameter and is detached from the protrusion 102. With respect to the ring-shaped collar portion 26, the pair of two ring-shaped collar portions 26a corresponding to the closed portion H have their peripheral side portions in contact with the belt-shaped member 100. Other ring-shaped collar part 2
6 does not need to be in particular contact with each other, but it is important to fit in the groove 104 between the protrusions 102. It should be noted that the correspondence in FIG. 8 is not essentially different even if the strip-shaped members 120 and 140 are provided. With respect to the belt-shaped member 140, the fitting material 150 is located at the closed portion H.

(Box 22) (See FIGS. 9 and 10) The box 22 retains rigidity, and has an upper portion 22A and a lower portion 22.
And the upper and lower parts 2 by the pin shaft member 28 on the side.
2A and 22B are pivotally attached, and the upper portion 22A can be opened around the pin member 28. The box 22 is the upper and lower parts 22
The front and rear surfaces of A and 22B hold the shaft portion of the gear mechanism 21. Further, in the lower portion 22B of the box body 22, the link arm 1 of the molding frame 1 is interposed via the rear surface portion.
It is fixed to 2, and the front part is provided for the mounting part of the hydraulic motor 23. A closing device 29 for closing the upper portion 22A and the lower portion 22B is attached to the other side surface of the box body 22. The one shown in the figure is an example thereof, and the connecting rod 31 is pivotally attached to the rib 30 protruding from the upper portion 22A, and the lower portion 2
A bifurcated receiving shelf 32 having the same phase as that of the rib 30 is projected on the 2B, and the connecting rod 31 is inserted into the recess of the receiving shelf 32. A coil spring 33 and a nut 34 that is screwed into a threaded portion below the coil spring 33 are sequentially mounted on the connecting rod 31, and the coil spring 33 is pressed against the lower surface of the receiving rack 32 by tightening the nut 34. As a result, the tightening force of the upper portion 22A is appropriately adjusted by the elasticity of the coil spring 33.

(Gear mechanism 21 and hydraulic motor 23) (see FIG. 9) The gear mechanism 21 has two shaft portions 36 and 37 rotatably bridged over the front and rear walls of the box body 22. A gear 38 is fixed to the shaft portion 36, and a gear 39 that meshes with the gear 38 is fixed to the second shaft portion 37. First shaft 3
6 is connected to the inner surface roller 3, and the second shaft portion 37 is connected to the outer surface roller 4. The number of rotations of the shaft portions 36 and 37 can be adjusted by adjusting the number of teeth. In the present embodiment, the two shaft portions 36 and 37 are supported and fixed by rotary bearings, but it is free to use slide bearings. Further, a spacer roller 40 for holding a gap is rotatably attached to the second shaft portion 37. The outer circumference of the spacer roller 40 contacts the inner wall surface of the pipe P.
The spacer roller 40 has an appropriate diameter and can be omitted. The hydraulic motor 23 is attached to the front surface of the box body 22 by connecting its drive shaft 23 a to the first shaft portion 33. The hydraulic motor 33 is connected to an in-side pipe 41a for sending oil to the hydraulic motor 23 and an out-side pipe 41b for discharging oil from the hydraulic motor 23. Further, these pipes 41 are connected to a rotary joint 42 (see FIG. 1) attached to the box body 22, and the rotary joint 42 is connected to a pipe 43 connected to an external pressure source. Through the rotary joint 42, the working fluid is exchanged between the pipe 41 on the hydraulic motor 23 side accompanied by the rotary motion and the external pipe 43 not rotating. The driving force of the hydraulic motor 23 is transmitted to the first shaft portion 36 by the gear mechanism 21 and the hydraulic motor 23, and the gear mechanism 21
Is transmitted to the second shaft portion 37 via. The shaft portion 36 and the shaft portion 37 rotate in opposite directions to each other.

To attach the joining mechanism portion 5 to the lining pipe R, the upper portion 22A of the box body 22 is opened, and the ring-shaped flange portion 26 of the outer surface roller 4 is matched with the pitch of the ridges 102 of the strip-shaped member 100. Then, the ring-shaped collar portion 26a is positioned at the closing portion H, and then the upper portion 22A is closed to the lower portion 22B, the closing device 29 is closed, and the nut 34 thereof is tightened.

The joining mechanism 5 is fixed to the link arm 12 of the molding frame 1 via the box 22 as described above, and the box 22 of the joining mechanism 5 is always the shaft 1.
Means for maintaining a posture that is perpendicular to 0 can be taken.
11 and 12 show one mode of the posture holding mechanism I. The posture maintaining mechanism I has two stays 57 having a V shape, one end of which is pivotally attached to the link arm 12 via a pin shaft 55 and the other end of which is pivotally attached to one pin shaft 56.
A top body 58 rotatably attached to the tip of the pin shaft 56; and a guide body 59 fixed to the rear surface of the box body 22 and having a groove 59a for guiding and moving the top body 58 in the radial direction. Become. With this configuration, when both link arms 12 sandwiching the joining mechanism portion 5 are bent inward,
The stay 57 also narrows the angle of the V shape with the shaft portion 10 and the pin shaft 56 as an axis of symmetry, and the pin shaft 56 moves inward. The top body 58 at the end of the pin shaft 56 is the groove 5 of the guide body 59.
9a moves. As a result, the box body 22 held by the shaft portion 10 and the pin shaft 56 has its posture in the shaft portion 10
Always keep a right angle to.

Molding frame 1 incorporating guide roller 2
When loaded in the rectangular cross-section pipe P, it retains a rectangular shape as a whole with the roundness at the corners of the pipe P.

Position 1, FIG. 1 and FIG. 2 show a position 1 in the middle of pipe making of the lining pipe R, and FIG. 3 shows a position 2. That is, position 1 refers to a state in which the joining mechanism portion 5 is in contact with the inner wall of the rectangular sectional pipe culvert P, and position 2 is a state in which the joining mechanism portion 5 reaches a corner portion of the rectangular sectional pipe culvert P and is separated from the inner wall surface. Four
The side contacts the inner surface of the pipe P.

Lining construction in the pipe D The lining construction method in the underground buried pipe made by using the lining construction device S of this embodiment will be explained, and the operation of the device S of this embodiment will also be explained. . FIG. 13 shows an outline of the lining construction work. In the method of this embodiment, an example of application to a sewer pipe as an underground buried pipe is shown. In the figure, Q1 is an upstream human hole and Q2 is a downstream human hole. As shown in FIG. 13, in the above-ground portion, the unwinding device T with the rotary table around which the belt-shaped member 100 is wound is arranged on the upstream manhole Q1 side, and the hydraulic drive source G is arranged on the downstream manhole Q2 side. To be done. Construction is done from the upstream side to the downstream side.

The steps will be described below. (1) The lining construction device S is carried into the pipe P to be rehabilitated through the manhole Q1. That is, the forming frame 1 of the present construction apparatus S is flexible and the human body Q1
It is easy to carry in, and if the opening of the human hole Q is small and it is not possible to cope with it in the normal bending range, temporarily remove the auxiliary stopper 16 that defines the outer bending angle (α). Made easier by. Further, the joining mechanism portion 5 can be attached to the molding frame 1, so that it can be easily attached on site. The circumference of the present construction device S is set to be slightly smaller than the circumference of the inner wall surface of the rectangular pipe P. In addition,
The circumference of the construction device S is determined by the length of the envelope of the outermost diameter of the guide roll 2.

(2) The strip-shaped member 100 is drawn into the human hole Q1, and the strip-shaped member 100 is manually wound several times (about three times) in the human hole Q1 to form a lining pipe (this is called a starting lining pipe). ) Make Ro. The circumference of the inner surface of the starting lining pipe Ro is equal to the circumference of the construction apparatus S. In addition, the starting lining pipe Ro includes the belt-shaped member 10
The elasticity of 0 keeps the circle in a natural state where no force is applied.

(3) The main construction device S is incorporated inside the starting lining pipe Ro, and the joining mechanism part 5 of the main lining construction device S is provided at the front edge of the starting lining pipe Ro.
Is installed in a predetermined state. That is, the inner surface roller 3 and the outer surface roller 4 of the joining roller portion 20 are arranged at the closed portion of the lining tube Ro, and the ring-shaped flange portion 26 of the outer surface roller 4 is arranged.
Is fitted into the groove 104 of the belt-shaped member 100, and in particular, the ring-shaped brim portion 26a is accurately brought into contact with the closing portion H. Further, the flange 3b of the inner surface roller 3 is engaged with the concave groove 110 of the belt-shaped member 100.

(4) The main construction device S with the starting lining pipe Ro assembled in this state is drawn into the rectangular pipe D.
At this time, the circular lining pipe Ro receives a restraining force from the rectangular pipe conduit P and is deformed into a rectangular shape along the inner wall surface of the rectangular pipe conduit P. And this construction apparatus S also follows this deformation by the link body of the forming frame 1. This retraction is preferably performed in the state of position 2 shown in FIG. 3, but position 1 shown in FIG. 2 is not excluded.
In the retracting operation at the position 1, it is a suitable expedient means to forcefully pull the opposite sides of the main forming frame 1 toward the center by using an appropriate pulling member (for example, a tie rod).

(5) The inner and outer surface rollers 3 and 4 of the joining mechanism portion 5 are rotationally driven, and a clamping force between the inner surface roller 3 and the outer surface roller 4 is applied to the joint portion H of the belt-shaped member 100 to start it. The strip-shaped member 100 newly supplied in succession to the lining pipe Ro is joined. At the same time, due to the engagement guide action of the ring-shaped collar portion 26 of the outer surface roller 4 and the groove 104 of the belt-shaped member 100, the entire construction apparatus S revolves in the pipe circumferential direction and advances in the pipe axial direction. As a result, the strip member 100 is spirally wound, and the lining pipe R is installed.

(5A) In this step, when the joining mechanism 5 is in contact with the inner wall surface of one side of the pipe P (position 1), the lining pipe R on the wall surface is separated from the inner wall surface, The lining pipes R on the adjacent sides are in contact with the inner wall surface and form a flat rectangular shape. When the joining mechanism portion 5 reaches a corner portion while moving to the other side of the pipe P (position 2), the lining pipe R is in contact with each inner wall surface except for the corner portion to form a rectangular shape. When the joining mechanism portion 5 comes into contact with the inner wall surface of the other side of the pipe D, the lining pipe R on the side is separated from the inner wall surface, and the lining pipe R on the adjacent side is the inner wall surface. To a flat rectangular shape. By repeating this, the lining pipe R is formed.

(5B) Further, in this step, the belt-shaped member 100 is sequentially supplied from the unwinding device T arranged on the ground. In the unwinding device T, as shown in an example of the configuration in FIG. 13, a rotary table 204 is rotatably arranged via a trochanter 202 on a circular track 200 arranged around the opening of the human hole Q1. Then, a winding drum 206, on which the belt-shaped member 100 is freely wound around, is rotatably supported on the turntable 204. As a result, the rotary base 204 along the circular rail 200 is
The rotation in the horizontal plane and the rotation in the vertical plane of the winding cylinder 206 are combined. The strip-shaped member 100 makes a twisting rotation in accordance with the pipe-making operation, but in the unwinding device T, the rotary table 204 follows this in synchronization with this rotation.

(6) As the construction device S moves forward, the running pipe R left behind the construction device S is
The side is in close contact with the inner wall surface of the pipe P.

(7) When the lining pipe R is installed over the entire length of the pipe P, cement milk is filled in the gap between the pipe P and the lining pipe R, and this embodiment is completed after the cement milk is solidified.

(Effects of the First Embodiment) Since the lining work in the modified cross-section pipe of this embodiment is carried out in the above manner, the following effects are exhibited. According to the present embodiment, since the manufactured lining pipe R is left as it is in the pipe P, it is possible to perform a long lining construction without being restricted by the diameter of the lining pipe and the pipe manufacturing distance. Also,
It is possible to create a lining pipe R having a bend, and it is possible to cope with a case where the pipe D has a bend. Further, the engagement guide action of the ring-shaped flange portion 26 of the outer surface roller 4 and the groove 104 of the belt-shaped member 100 guides the device S at a predetermined pitch, and the lining pipe R is reliably manufactured. Further, according to the present embodiment, it is possible to realize the construction of the lining pipe by coping with the deformed pipe and coming into contact with the pipe wall of the deformed pipe so that the gap between the lining pipe and the pipe wall is as small as possible.

(Second Embodiment) FIGS. 14 to 18 show another embodiment (second embodiment) of the lining construction apparatus for carrying out the method for lining a rectangular cross section pipe according to the present invention. V indicates the lining construction device. In these figures,
The same members as those in the previous embodiment are designated by the same reference numerals.

Band-shaped members 140, 160 FIG. 22 shows an example of band-shaped members used in the lining work of this embodiment. In this belt-shaped member 160, as a plastic deformation function material having a metal (usually steel) W-shaped cross section (V-shaped or U-shaped is also possible) between the appropriate ridges 102 of the belt-shaped member 100 shown in FIG. Plastic deformation material 17
It is one with 0 attached. The band-shaped member 160 is deformed following the plastic deformation of the plastic deformable material 170. FIG. 23 shows another example of the belt-shaped member of this embodiment. This belt-shaped member 180
In FIG. 21, a plastic wire rod 190 as a plastic deformation function material made of metal (usually steel) is inserted into an appropriate ridge 122 of the belt-shaped member 120 shown in FIG. The band-shaped member 180 is deformed following the plastic deformation of the plastic wire 190.

[0037] As shown in lining apparatus U FIGS. 14 18, the lining device V, forming frame 1 forming a flexure freely annular body with a link mechanism having a predetermined width, the molding of the frame 1 A plurality of guide rollers 2 arranged on each shaft of the link mechanism,
It is attached to the molding frame 1 at two opposite positions,
A main / sub joining mechanism portion 5 (a main joining mechanism portion 5A and a sub joining mechanism portion 5B) including an outer roller 3 and an inner roller 4, and
It is composed of a rectangular regulation frame 6 which is arranged inside the molding frame 1 at a predetermined interval, and a main part of a guider 7 which is bridged between the molding frame 1 and the regulation frame 6. In other words, the running construction device V of this embodiment is obtained by adding the regulation frame 6 and the guide 7 to the running construction device S of the first embodiment.

The detailed structure of each part will be described below. Forming frame 1 and guide roller 2 The forming frame 1 and the guide roller 2 are similar to those of the first embodiment. That is, the molding frame 1 forms an annular body with a required width, is flexible in the outer diameter direction with the link mechanism, and has lateral rigidity. The guide roller 2 is rotatably attached to each shaft portion 10 of the molding frame 1.

Joining Mechanism Section 5 The joining mechanism section 5 is in accordance with the first embodiment. Therefore, also in this embodiment, the main and sub joining mechanism portions 5A and 5B form a pair, are mounted at diagonal positions of the molding frame 1, and the joining roller portion 20 in which the inner surface roller 3 and the outer surface roller 4 form a pair, It has a box body 22 accommodating a gear mechanism 21 for rotating these rollers 3, 4 synchronously, and a hydraulic motor 23 attached to the box body 22 as a rotational drive source for the rollers 3, 4.
In the joining mechanism portion 5 corresponding to the belt-shaped member 140, the outer surface roller 4 does not include the ring-shaped flange portion 26 made of a plastically deformable material.

Restriction Frame 6 (See FIGS. 16 and 17) The restriction frame 6 has a large rigidity and has a rectangular overall shape. In the present embodiment, a mold steel having a hollow groove 52 is used, and the groove 52 opens outward. The regulation frame 6 is assembled with a divided body.

Guide 7 (See FIGS. 16 to 18) The guide 7 is interposed between the molding frame 1 and the regulation frame 7 and guides the movement of the molding frame 1 according to the trajectory of the regulation frame 7. More specifically, the guider 7 has a shaft portion 10 of the molding frame 1 at both ends of a body having a bifurcated shape.
Has a bearing 54 pivotally attached to a roller holding body 55 extending outward from the center of the main body, and a rotating shaft 57 having rollers 56 attached to both sides of the roller holding body 55 is rotatable. Hold on. The roller 56 is mounted in the groove 52 of the regulation frame 6 and rolls along its inner wall.

With the above-mentioned structure, the molding frame 1 in which the guide roller 2 and the joining mechanism portion 5 are assembled advances along the shape of the regulation frame 6 which maintains the same phase with respect to the cross section of the pipe.

Lining construction in the pipe D The lining construction method in the underground buried pipe which is carried out by using the lining construction device V of the second embodiment will be described. When the construction device V is carried into the rectangular pipe P, the regulation frame 6 is selected to have a size corresponding to the inner peripheral length of the pipe P. The regulation frame 6 is composed of a divided body, and the divided body is carried into the human hole Q1 and then assembled into a predetermined rectangular shape.
The construction device V is assembled in the human hole Q1. Belt-shaped member 14
0 is drawn into the human hole Q1, and the starting lining pipe Ro is created using the present construction device V. The start lining pipe Ro is formed in a rectangular shape, and the start is drawn into the pipe P. By driving the joining mechanism portion 5 of the present construction device V, the molding frame 1 in which the guide roller 2 and the joining mechanism portion 5 are assembled advances along the shape of the regulation frame 6. At the corner portion of the regulation frame 6, the joining roller portion 20 of the joining mechanism portion 5 folds the belt-shaped member 140 inward via the guide element 7. At this time, the restriction frame 6 always maintains the same phase state. That is, when the joining mechanism portion 5 is vertically positioned as in the state of FIG. 14 and when the joining mechanism portion 5 is moved laterally, the self-holding force of the lining pipe R that has already been formed causes the main construction apparatus V to be operated. Maintains a rectangular shape.

(Effects of the Second Embodiment) Since the lining work in the irregular cross section pipe of the present embodiment is carried out in the above manner, the following effects are exhibited. According to the present embodiment, since the manufactured lining pipe R is left as it is in the pipe P, it is possible to perform a long lining construction without being restricted by the diameter of the lining pipe and the pipe manufacturing distance. Also,
It is possible to create a lining pipe R having a bend, and it is possible to cope with a case where the pipe D has a bend. Further, the engagement guide action of the ring-shaped flange portion 26 of the outer surface roller 3 and the groove 104 of the belt-shaped member 100 guides the device S at a predetermined pitch, and the lining pipe R is reliably manufactured. Furthermore, according to the present embodiment, not only can a lining pipe similar to the existing irregular cross-section pipe be constructed, but also a non-similar lining pipe can be constructed (for example, a rectangular shape within a circular cross section), and application to irregular cross-sections is possible. The property is further improved.

The present invention is not limited to the above 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. In the molding frame 1, each guide roller 2 has its shaft portion 1
The 0 may be attached to the intermediate position of the link arm 12. In the joining mechanism portion 5, the sub joining mechanism portion 5B requires at least the inner surface roller 3 and the outer surface roller 4, and the drive mechanism can be omitted. Alternatively, the sub joining mechanism portion 5B may be omitted. The joining mechanism section 5 is not limited to hydraulic drive, and a pneumatic motor or an electric motor can be adopted. When the pneumatic motor is adopted, the rotary joint 42 is still adopted, but when the electric motor is adopted, the rotary brush is adopted instead of the rotary joint. Alternatively, the manual mechanism is not excluded, and the rollers 3 and 4 are driven by a handle operation via the gear mechanism 21.

C. EFFECTS OF THE INVENTION According to the lining construction method and the construction apparatus in the pipe common to the present invention, since the manufactured lining pipe is left in the pipe as it is, the diameter of the lining pipe and the pipe manufacturing distance. It is possible to carry out a long lining construction without being restricted by. Further, it is possible to create a lining pipe having a bend, and it is possible to cope with a case where a bend exists in the pipe ditch. Furthermore, it is possible to form a corner in a rectangular cross section, and it is not limited to a circular general cross section, and it is possible to apply to a rectangular or oval shaped cross section. And
According to the first and second aspects of the present invention, it is possible to realize the construction of the lining pipe by coping with the irregular pipe and contacting the pipe wall of the irregular pipe so that the gap between the lining pipe and the pipe wall is as small as possible.
In addition, according to the inventions of claims 3 and 4, not only can a lining pipe similar to the existing deformed cross-section pipe be constructed, but also a dissimilar lining pipe can be constructed (for example, a rectangular shape in a circular cross section). Applicability to modified cross sections is further improved.
According to the fifth aspect of the invention, the outer surface roller of the joining roller portion is guided by the T-shaped rib and advances at a desired pitch. According to the invention of claim 6, plastic deformation of the belt-shaped member can be realized by a simple means. According to the invention of claim 8, the forming frame can be reliably fed.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view (I-I gland cross-sectional view of FIG. 2) showing an entire embodiment (first embodiment) of a lining construction device in a pipe according to the present invention.

FIG. 2 is a front view thereof (a view in the direction of arrow II in FIG. 1).

FIG. 3 is a front view thereof.

FIG. 4 is a partial cross-sectional plan view of the molding frame.

5 is a view on arrow V in FIG.

FIG. 6 is a structural diagram of a link body of the molding frame.

FIG. 7 is a plan view of a joining mechanism section.

FIG. 8 is a configuration diagram of a joining roller portion of the joining mechanism portion.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a view on arrow in the X direction of FIG.

FIG. 11 is another attachment mode diagram of the joining mechanism portion.

12 is a sectional view taken along line XXII-XII in FIG.

[Fig.13] Construction process diagram

FIG. 14 is a front view showing the whole of another embodiment (second embodiment) of the lining construction device in the pipe according to the present invention.

15 is a sectional view taken along line XV-XV in FIG.

FIG. 16 is a partially enlarged side view of the construction device.

17 is a sectional view taken along line XVII-XVII of FIG.

FIG. 18 is a perspective view of a guide.

FIG. 19 is a diagram showing one embodiment of a belt-shaped member used in the present invention.

FIG. 20 is a diagram showing another embodiment of the strip-shaped member used in the present invention.

FIG. 21 is a view showing still another embodiment of the strip-shaped member used in the present invention.

FIG. 22 is a view showing one embodiment of a belt-shaped member used in the present invention.

FIG. 23 is another embodiment view of the strip-shaped member used in the present invention.

[Explanation of symbols]

P ... Pipe culvert, R ... Lining pipe, S, U ... Lining construction device, 1 ... Molding frame, 2 ... Guide roller, 3 ... Inner surface roller, 4 ... Outer surface roller, 5 ... Joining mechanism section, 6 ... Regulating frame, 7 … Guide, 10… Shaft, 12… Link arm,
100, 120, 140, 160, 180 ... band-shaped member,
102, 122, 142 ... Ridges, 104, 124, 14
4 ... Groove (valley), 170, 190 ... Plastic deformation function material

Front page continued (72) Inventor Eki Akimoto 7-7 Ushizawa-cho, Iruma City, Saitama Prefecture (72) Inventor Hamao Yamashiro 213-10 Sasai, Sayama City, Saitama 5-402 Sayama Green Heights 5-402

Claims (8)

[Claims] 1. A long strip-shaped member having joints formed on both side edges thereof is continuously supplied and spirally wound in a modified cross-section pipe to bond mutually joined joints. A method of leaving a formed tubular body, and additionally forming a lining tube with a band member newly supplied in front of the already formed tubular body, which has a predetermined width and lateral rigidity, A guide roller that is in contact with the inner surface of the belt-shaped member is mounted around a molding frame that is flexible and has a mechanism that prevents the center-folding of each link body, and a tubular body already formed on this molding frame. At the end edge of the belt, a joining roller portion composed of two rollers, an outer roller abutting on the outer surface of the belt-shaped member and an inner roller abutting the inner surface of the belt-shaped member, is arranged, and the roller in the joining roller portion is driven to rotate. And the inner and outer rollers are sandwiched by the two outer and inner rollers at the position where the joint between the already formed tubular body and the newly supplied strip-shaped member is sandwiched. Method. 2. An elongated strip-shaped member having joints formed on both side edges is continuously supplied and spirally wound in a pipe having a modified cross-section to engage mutually adjacent joints. A lining construction device for forming and additionally forming a tubular body, which has a predetermined width and lateral rigidity, is flexible and has a link mechanism, and a molding frame in which center bending of each link body is prevented, A guide roller mounted around the molding frame and abutting on the inner surface of the tubular body, a mutual position of a joint between the already formed tubular body and a newly supplied strip-shaped member attached via the molding frame A lining construction device in a pipe section of irregular cross section, comprising: a joining mechanism portion composed of an outer surface roller and an inner surface roller, which are arranged at the same time and sandwich a strip-shaped member. 3. An elongated strip-shaped member having joints formed on both side edges thereof is continuously supplied and spirally wound in a modified cross-section pipe to bond mutually joined joints. A method of leaving a formed tubular body, and additionally forming a lining tube with a band member newly supplied in front of the already formed tubular body, which has a predetermined width and lateral rigidity, A guide roller that is in contact with the inner surface of the strip-shaped member is mounted around a flexible frame that has a mechanism, and is in contact with the outer surface of the strip-shaped member at the end edge portion of the tubular body that has already been formed in this molding frame. A joining roller portion composed of two rollers, an outer surface roller and an inner surface roller that contacts the inner surface of the belt-shaped member, is arranged.
The roller in the joining roller portion is driven to rotate, and at the joint portion where the tubular body already formed and the strip-shaped member to be newly supplied are joined together, the two outer surface and inner surface rollers are sandwiched, and the molding is performed. A lining construction method in a pipe with a modified cross section, characterized in that the frame is arranged inside the molding frame, and the rigidity is maintained, and the frame is rotated around a restriction frame having a shape matching the modified cross section. 4. An elongated strip-shaped member having joints formed on both side edges is continuously supplied and spirally wound in a pipe having a modified cross-section to engage mutually adjacent joints. A lining construction device for forming and additionally forming a tubular body, which has a predetermined width and lateral rigidity and is flexibly bendable with a link mechanism, mounted around the molding frame, and having an inner surface of the tubular body. A guide roller that abuts against the outer surface, which is attached via the molding frame, is disposed at the joint between the joint portion of the already formed tubular body and the newly supplied strip-shaped member, and sandwiches the strip-shaped member A joining mechanism portion composed of a roller and an inner surface roller; a restriction frame which is disposed inside the molding frame, has rigidity and has a guide track with an irregular cross-section, and restricts the movement of the molding frame. Lining apparatus in irregular cross section sewer characterized and. 5. The irregular cross section according to claim 1, wherein a plurality of T-shaped ribs are formed on the outer surface of the belt-shaped member, and the outer surface roller of the joining roller portion is fitted between the T-shaped ribs. Lining construction method in the pipe. 6. The method for lining a pipe having a modified cross section according to claim 3, wherein the band-shaped member is charged with a plastically deformable material. 7. The lining construction method in the irregular cross-section pipe according to claim 1 or 3, wherein the irregular cross-section duct is a box culvert. 8. The modified cross section according to claim 4, further comprising a guide member interposed between the molding frame and the regulation frame, fixed to the molding frame, and moving along a guide rail of the regulation frame. Lining construction equipment in the pipe.