JP3072015B2 - Lining construction equipment in sewer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

A. The present invention relates to a lining construction apparatus for constructing a lining layer on an inner surface of an existing sewer such as a sewer pipe, a water pipe, and a gas pipe. More specifically, the present invention relates to a lining construction apparatus formed by inserting a tubular member formed by spirally winding a band-shaped member formed of a long plate-like member into a sewer.

(2) Prior Art As one aspect of such a lining construction technique, for example, Japanese Patent Publication No. 2-312136 is known. That is, in this prior art, a lining pipe formed by spirally winding a continuously supplied strip-shaped member, starting from a pipe-making machine installed in a manhole of a sewer, is rotated into an existing sewer. It is fed with movement, that is, thrust force. However, according to this conventional technique, as the lining pipe becomes longer, the weight thereof increases, and the frictional resistance between the outer surface of the lining pipe and the pipe wall of the sewer increases, and a large thrust force is required. Will be. Similarly, as the diameter increases, the weight per unit length also increases, and a greater thrust force is required. For this reason, the power equipment increases in size to obtain the necessary thrust force, and the equipment cost increases. Therefore, this conventional technique has a problem in increasing the length and diameter. Furthermore, one of the problems with this conventional technique is that it is impossible to cope with the bending of the sewer.

(3) Problems to be Solved by the Invention Therefore, in order to solve the problems in the prior art, the present invention uses a new idea to make a lining without changing the structure of the conventional belt-shaped member. It is an object of the present invention to provide a lining construction technique capable of appropriately coping with an increase in length and diameter of a pipe, and further, bending of a sewer. For this reason, the present invention has been made based on the finding that by keeping the lining tube formed by spiral winding, it is possible to cope with an increase in length and diameter.

[0004] b. Configuration of the Invention (1) Means for Solving the Problems The lining construction apparatus in a sewer according to the present invention employs the following configuration in order to achieve the above object. That is, in the culvert, a long band-shaped member provided with joints on both side edges and continuously supplied is spirally wound, and a tubular body formed by engaging the joints that are in contact with each other is left. A pipe-forming apparatus for additionally forming a tubular body with a belt-shaped member newly supplied in front of the already formed tubular body, wherein the tubular body has a required width, forms an annular shape, and maintains rigidity; A mounting frame disposed inside the tubular body, disposed on the outer periphery of the mounting frame, and at a predetermined pitch in a circumferential direction,
A plurality of guide rollers that are in contact with the inner surface of the tubular body, are mounted via the mounting frame, are disposed at a portion where the already formed tubular body and a newly supplied belt-like member are closed, and sandwich the belt-like member. It is characterized by comprising a joining mechanism portion comprising an outer roller and an inner roller to be attached.

(2) Operation At the closed portion of the belt-shaped member, the joints which are in contact with each other by the clamping action of the outer roller and the inner roller of the joining mechanism are engaged with each other. The outer roller engages with the concave groove formed on the outer surface of the band-shaped member, and advances in the pipe axis direction at a predetermined pitch together with the newly supplied band-shaped member, so that the joining mechanism is always located at the closed position. As a result, the construction apparatus revolves as a whole, and the belt-shaped members are continuously closed to form a pipe. The mounting frame is formed in an annular shape and is rigid, and a tubular body having a constant diameter is stably formed by a guide roller disposed on the outer surface. Further, the mounting frame carries the divided body into a sewer and is assembled in the sewer.

(3) Embodiment An embodiment of the apparatus for lining a pipe in a pipe according to the present invention will be described with reference to the drawings. 1 to 12 show an embodiment of a lining construction apparatus S in a sewer according to the present invention. That is, FIG.
Shows an outline of the entire lining construction apparatus S, and FIGS.
FIG. 12 shows the configuration of each part of the lining construction apparatus S.
FIGS. 14 and 15 show various aspects of the belt-shaped member. In these figures, P indicates a sewer having a circular cross section, and R indicates a lining pipe. In addition, the traveling direction of the device S (arrow B)
And the front and rear parts.

[0007] strip 100 Figure 14 shows an example of the belt-shaped member used in the lining apparatus S of the present invention. The belt-shaped member 100 has a main body in the shape of a flat plate having a constant thickness, and an appropriate number (seven in the illustrated example) of ridges 102 are continuously provided in the longitudinal direction of the outer surface thereof. A flange 102 a is formed at the tip of the ridge 102.
A groove 104 or a groove space is formed between the ridges 102. The inner surface 106 is formed substantially smooth. Joint portions 100A and 100B are formed on both sides of the band-shaped member 100 so as to be overlapped and engaged with each other. That is, the base of the protrusion 102A at the front end of the front edge side joint 100A is expanded, the concave groove 110 is vertically provided from the inner surface side, and the overhang portion 112 is continuously provided from the protrusion 102A. The trailing edge side joint portion 100B extends from the ridge 102B at the rear end.
A protrusion 116 is engaged with the groove 110 of the front edge side joint 100A near the end of the protrusion 114.
Is installed vertically. At the time of joining, adjacent belt-shaped members 10
0, the leading edge and the trailing edge overlap, and the leading edge side joint 10
0A, the trailing edge side joint portion 100B receives a clamping action between an outer roller and an inner roller of the joining roller portion described later, and
The protrusions 116 are fitted into the protrusions 10 and the ends of the protrusions 112 are fitted into the flanges 102a of the protrusions 102B, and are joined. In this case, the main engagement is made by the concave groove 110 and the ridge 116, and the overhang portion 112 and the ridge 10
2B is a secondary engagement, so that the secondary engagement may be omitted in some cases. Further, in this embodiment, the sealing material 11 is provided at the contact portions of the overhang portions 112 and 114.
8 are interposed to enhance the bondability. The joint 100
If the fitting engagement at A and 100B is sufficient, the sealing material 118 can be omitted. The belt-shaped member is made of a synthetic resin material, and in particular, can be continuously molded by extrusion from the viewpoint of moldability.
C) Resins are preferred. However, this does not hinder metal molding.

FIG. 15 shows another embodiment of the belt-shaped member. In this band-shaped member 120, an appropriate number of trapezoidal ridges 122 are continuously provided vertically in the longitudinal direction of the outer surface, and a valley 124 is formed between the ridges 122. The ridges 122 and the valleys 124 have the same pitch in the width direction. A hollow portion is appropriately formed inside the ridge 122, so that the band-shaped member can be made rigid and lightweight. The inner surface 126 is formed to be substantially smooth. Joint portions 120A and 120B are formed on both sides of the belt-shaped member 120 so as to overlap and engage with each other. That is, the ridge of the outer joint portion 120A is formed in the same shape as the ridge 122, and a circular groove 130 is vertically provided on the inner surface thereof.
32 is slightly longer than the width of the valley 124. The inner joint portion 120B has a length of the overhang portion 134 substantially longer than that of the valley portion 124, and the end of the overhang portion 134 engages with the round groove 130 of the outer joint portion 120A. A convex ridge 136 is provided vertically, and a cut groove 138 is provided vertically in the ridge 122 at the base thereof.
At the time of joining, the inner joint portion 12 is attached to the outer joint portion 120A.
0B is pressed by the outer roller and the inner roller of the joining roller portion, and a round ridge 136 is formed in the round groove 130;
The ends of the projections 132 are fitted into the cut grooves 138 and joined.

[0009] With reference to lining apparatus S FIGS. 1 12, the structure of the lining apparatus S of the present embodiment. As shown in FIGS.
The lining construction device S includes an annular mounting frame 1, a plurality of guide rollers 2 arranged at a predetermined pitch on the outer periphery of the mounting frame 1, and an outer roller 3 mounted via the mounting frame 1. Inner roller 4
And a joining mechanism 5 including:

Hereinafter, the detailed structure of each part will be described. Mounting Frame 1 (See FIGS. 1 to 4 and FIGS. 5 to 7) The mounting frame 1 has an annular shape and maintains required rigidity with a predetermined width and thickness. In this embodiment, the mounting frame 1 has six divided bodies (segments) 1A, 1B, 1
C, 1D, 1E, and 1F. Each of the divided bodies 1A to 1F is formed into a 1/6 circle, but the divided body 1A has a narrow width,
The other divided bodies 1B to 1F have a standard width. Also, the divided bodies 1A and 1F are combined to form an attachment portion for the joining mechanism 5.

As shown in FIGS. 5 to 7, the standard structure of the divided bodies 1A to 1F includes side plates 10 (front side plate 10A, rear side plate 10B) serving as front and rear surfaces, and flanges 11 at both ends.
The frame has a predetermined rigidity, and the stiffener 12 is added as appropriate to increase the rigidity. In the standard specification, the side plate 10 takes a 1/6 arc piece and the flange 11 takes a so-called short flange 11a.

A bolt insertion hole 14 is formed in the flange 11, and a fastener 15 composed of a bolt 15a and a nut 15b is inserted into the bolt insertion hole 14 of the flange 11 that is in contact with the flange 11 to be connected and fixed.

A bearing recess 17 is provided at an upper edge of the side plate 10 at a predetermined interval to receive the shaft of the guide roller 2. The bearing recess 17 is shifted in phase by the front and rear side plates 10A and 10B corresponding to the inclination of the guide roller 2 described later.

(Division 1A, 1F) As shown in FIGS. 2 to 4, the division 1A has a main frame for 50 ° and a 10 °.
It consists of an overhang frame for °. In the main frame, the front side plate 10A is disposed behind the front side plates 10A of the other divided bodies, and has a narrow width. Thereafter, the retreat width is set to a width sufficient to receive the band-shaped member 100. One end has a short flange 11a, and the other end has a long flange 11b.
In the overhang frame body, front and rear short side plates 10C and 10D extend from the long flange 11b, and a flange 19 is fixed to the other end of the short side plates 10C and 10D.
The bolt insertion hole 14 is opened in the flange 19 like the other divided bodies, and the fastener 15 is mounted. The short side plate 10 </ b> C at the front of the overhang frame is used for attachment to the joining mechanism 5. 2
0 is the bolt insertion hole. The divided body 1F is symmetrical to the divided body 1A, but has the same width as the standard body. The divided bodies 1A and 1F are arranged to face each other, their flanges 19 are brought into contact with each other, and are assembled together with the fastener 15 inserted into the bolt insertion hole 14.

Guide roller 2 (see FIGS. 8 and 9) The guide roller 2 is arranged on the outer periphery of the mounting frame 1 at a predetermined interval and a predetermined angle. In the present embodiment, six pieces are arranged for the standard divided bodies 1B, 1C, 1D, and 1E, and five pieces are arranged for the other divided bodies 1A and 1F. Guide roller 2
Takes a right angle with respect to the belt-shaped member 100 constituting the lining tube R. As shown in FIG. 8 as an example, each guide roller 2 includes a roller shaft 22 and a roller main body 23 that rotates around the roller shaft 22. It is supported by. The roller main body 23 is made of a hard synthetic resin body or a metal body, is rotatable around the roller shaft 22 via a bearing 24, and contacts the inner surface of the belt-shaped member 100. Threaded portions 22 a are screwed into both ends of the roller shaft 22, and two guide nuts 25 are clamped in the bearing recesses 17 of the mounting frame 1 to support the guide roller 2. The number of the guide rollers 2 varies depending on the diameter of the lining tube R or the diameter of the guide frame 1, and is not limited to the number, but is determined within a range in which roundness is guaranteed.

The guide roller 2 has a so-called smooth guide roller 2A in contact with the inner surface of the belt-shaped member 100 and a flange 27 which contacts the inner surface of the belt-shaped member 100 and fits into the concave groove 110 of the belt-shaped member 100. And the so-called flanged guide roller 2B. As shown in FIG. 9, the flanged guide roller 2 </ b> B is formed by sandwiching a steel flanged roller 28 having a flange 27 between the roller main bodies 23. In this embodiment, the flanged guide rollers 2B are arranged at three places at 90 ° intervals from the inner roller 4 of the joining mechanism 5, but the arrangement and the number are not limited to this embodiment. .

Joining mechanism 5 (see FIGS. 10 to 12) The joining mechanism 5 is mounted on the mounting frame 1 via the side plate 10C of the mounting frame 1, and the outer roller 3 and the inner roller 4 are assembled. A gear mechanism 3 mainly composed of a joining roller unit 30 and for synchronously rotating these rollers 3 and 4
1 and a joining portion of a spirally wound band-shaped member 100 including a hydraulic motor 33 attached to the box 32 and serving as a rotational drive source for the rollers 3 and 4, that is, the band-shaped member 100 is arranged corresponding to the position where it first closes.

(Box 32) (Refer to FIGS. 10 and 11) The box 32 maintains rigidity, and has an upper portion 32A and a lower portion 32.
B and upper and lower portions 3 by the pin shaft member 35 on the side.
2A and 32B are pivotally connected, and the upper portion 32A can be opened around the pin member 33. Box 32 is upper and lower part 32
The shaft portion of the gear mechanism 31 is held by the front and rear surfaces of the gear mechanism 31 over A and 32B. In the lower portion 32B of the box 32, the front portion is provided for a mounting portion of the hydraulic motor 33, and the rear portion is further extended downward, and the side plate 1 of the mounting frame 1 is provided.
The bolt insertion hole 20 formed in the side plate 10C is brought into contact with the bolt insertion hole 20C, and the bolt insertion hole 36 formed in the rear surface of the side plate 10C is aligned with the bolt insertion hole 36, and is fixed by tightening the fixing bolt 37. On the other side of the box 32, the upper part 32A is attached to the lower part 32.
A closing device 38 for closing to B is attached. The one shown is an example of this, in which a connecting rod 40 is pivotally attached to a rib 39 protruding from an upper portion 32A, and a lower portion 32B
Is provided with a bifurcated receiving shelf 41 in the same phase as the rib 39,
The connecting rod 40 enters the recess of the receiving shelf 41. Connecting rod 4
Numeral 0 is provided with a coil spring 42 and a nut 43 which is screwed into a screw portion below the coil spring 42, and the coil spring 42 is pressed against the lower surface of the receiving shelf 41 by tightening the nut 43. Thereby, the tightening force of the upper portion 32A is appropriately adjusted by the elasticity of the coil spring 42.

(Gear Mechanism 31 and Hydraulic Motor 33) (See FIG. 11) The gear mechanism 31 has two shaft portions 45 and 46 that are rotatably bridged over the front and rear walls of the box 32. A gear 47 is fixed to the shaft 45, and a gear 48 meshing with the gear 47 is fixed to the second shaft 45. By adjusting the number of teeth, the number of rotations of the shaft portions 45 and 46 can be adjusted. In the present embodiment, the two shaft portions 45 and 46 are supported and fixed with a rotary bearing, but a sliding bearing can be used freely. Further, a spacer roller 49 for maintaining the interval is rotatably attached to the second shaft portion 46. The outer periphery of the spacer roller 49 contacts the inner wall surface of the pipe P. The spacer roller 49 has an appropriate diameter and can be omitted. The hydraulic motor 33 is attached to the front surface of the box 32 by connecting the drive shaft 33 a to the first shaft portion 45. The hydraulic motor 3
3 includes an in-side pipe 51a for sending oil to the hydraulic motor 33.
And an out-side pipe 5 for discharging oil from the hydraulic motor 33.
1b is connected. Further, these pipes 51 are connected to a rotary joint 52 (see FIG. 1) mounted at an appropriate position on the box body 32 or the mounting frame 1, and a pipe 53 connected to an external pressure source is connected to the rotary joint 52. You.
Through the rotary joint 52, the working fluid is exchanged between the pipe 51 on the hydraulic motor 33 side that rotates and the external pipe 53 that does not rotate. The driving force of the hydraulic motor 33 is transmitted to the first shaft 45 by the gear mechanism 31 and the hydraulic motor 33, and is transmitted to the second shaft 46 via the gear mechanism 31. Shaft 45 and Shaft 46
Are opposite to each other.

(Joining Roller Section 30) (See FIG. 12) The joining roller section 30 has an outer roller 3 and an inner roller 4 arranged side by side in the tube axis direction, and a belt-shaped member between the rollers 3, 4. 100 are arranged at predetermined intervals so as to sandwich them. Then, as described above, the inner roller 4 is directly attached to the first shaft 45 and the outer roller 3 is directly attached to the second shaft 46.

The detailed structure of the joining roller unit 30 will be described with reference to FIG. FIG. 12 shows two rollers 3 and 4 on the outer surface and the inner surface of the joining roller portion 30 in an enlarged manner, and shows the correspondence between the rollers 3 and 4 and the belt-shaped member 100. As illustrated, in the present embodiment, these rollers 3 and 4 are arranged over a plurality of (3 in the present embodiment) spans of the belt-shaped member 100. H indicates a first closed portion between the belt-shaped members 100.

The outer roller 3 has a plurality of annular flanges 56 formed at predetermined intervals on a cylindrical main body 55, and these annular flanges 56 are formed in grooves 10 between the ridges 102 of the belt-like member 100.
Fits in 4. The outer periphery of the cylindrical body 55 is pressed against the outer surface of the ridge 102 of the belt-shaped member 100. The cylindrical body 5
5 is knurled on its outer surface, and
And prevent slipping. Also, a portion 55a of the portion is reduced in diameter,
It comes off from the ridge 102. Attached to the annular flange 56, the closing portion H
The pair of ring-shaped flanges 56a corresponding to (a) has their peripheral sides abutting on the belt-shaped member 100. It is not necessary for the other ring-shaped flange portions 56 to come into particular contact with each other, and it is important to fit into the grooves 104 between the ridges 102.

On the other hand, the inner roller 4 has a cylindrical shape, is in close contact with the inner surface of the belt member 100, and supports the belt member 100 including the closing portion H, which is pressed from the outside by the outer roller 3. An enlarged diameter portion 4a is formed at the front end of the inner roller 4, and a flange 4b is formed on the enlarged diameter portion 4a so as to be engaged with the groove 110 on the inner surface of the belt-shaped member 100. Can be omitted.

When the joining mechanism 5 is attached to the lining tube R, the upper portion 32A of the box 32 is opened, and the annular flange 56 of the outer roller 3 matches the pitch of the ridge 102 of the belt-shaped member 100. In addition, the annular flange portion 56a is positioned at the closing portion H, and thereafter, the upper portion 32A is closed to the lower portion 32B, the closing device 38 is closed, and the nut 43 is tightened.

Lining Construction in Sewer P The lining construction work in the underground buried sewer performed using the lining construction equipment S of this embodiment will be described, and the operation of the apparatus S of this embodiment will be described. . FIG. 13 shows an outline of the lining work. Here, an example of application to a sewer pipe as an underground pipe is shown. In the figure, Q1 is an upstream human hole, and Q2 is a downstream human hole. FIG.
As shown in FIG. 3, in the above-ground part, the upstream human hole Q
On the 1st side, an unwinding device T with a turntable on which the belt-shaped member 100 is wound is arranged, and on the downstream human hole Q2 side, a hydraulic drive source G is arranged. Construction will be done from upstream to downstream.

The steps will be described below in the order of the steps. (1) The lining construction apparatus S is carried in a divided state into a pipe P to be rehabilitated through the human hole Q1 and is assembled in the pipe P. That is, the mounting frame 1 of the present apparatus S is configured to be assemblable from the divided bodies 1A to 1F, and the joining mechanism 5 is mountable to the mounting frame 1, so that the assembling at the site is easy. Mounting frame 1
Of the divided bodies 1A to 1F are assembled integrally by attaching the fasteners 15 to the flanges 11 thereof. The joining mechanism 5 includes the rear surface of the box 32 and the side plate 1 of the mounting frame 1.
The mounting bolt 1 is attached to the mounting frame 1 by attaching the fixing bolt 37 to 0CC.

(2) At the start end of the human hole Q1 of the sewer P, the band-shaped member 100 drawn from the ground portion is manually wound several times (about three times) to form a lining pipe (for starting the lining pipe). Ro (referred to as a lining tube) is produced.

(3) At the front edge of the starting lining pipe Ro, the joining mechanism 5 of the lining apparatus S is set in a predetermined state. That is, the outer roller 3 and the inner roller 4 of the joining roller unit 30 are arranged at the closing portion of the lining pipe Ro, but the annular flange 56 of the outer roller 3 is
The groove 104 is fitted into the groove 104, and the ring-shaped flange 56a particularly accurately contacts the closing portion H. The flange 4b of the inner roller 4 is engaged with the concave groove 110 of the belt-shaped member 100. Furthermore, the flange 27 of the guide roller 2 </ b> B with the flange is
10 is engaged.

(4) The joining mechanism 5 is driven to rotate, and the belt-like member 10 is pressed by the pinching force between the outer roller 3 and the inner roller 4.
In the closing portion H of 0, the belt-shaped member 10 newly supplied following the joint structure is connected to the starting lining pipe Ro.
0 is joined. At the same time, the annular flange 56 of the outer roller 3
And the groove 104 of the belt-shaped member 100
The joining roller portion 30 revolves in the pipe circumferential direction and advances in the pipe axial direction. Due to the rotation of the joining mechanism 5 and the engagement guiding action between the flange 27 of the flanged guide roller 2B and the concave portion 110 of the belt-shaped member 100, the present apparatus S advances as a whole at a predetermined pitch. Move forward. Thereby, the belt-shaped member 100 is spirally wound, and the lining pipe R is constructed.

(4A) In this step, the mounting frame 1
The guide roller 2 disposed on the outer periphery of the rim continuously contacts the inner surface of the lining pipe R, and the lining pipe R having a constant diameter is produced stably.

(4B) In this step, the belt-shaped member 100 is sequentially supplied from the unwinding device T disposed on the ground. As shown in an example of the configuration in FIG. 12, the unwinding device T has a turntable 204 rotatably mounted via a trochanter 202 on a circular rail 200 arranged around the opening of the human hole Q1. A winding drum 206 around which the belt-shaped member 100 is wound so as to be able to be extended freely is supported on the rotary table 204 so as to be rotatable. Thereby, the turntable 204 along the circular rail 200
In the horizontal plane and the rotation of the winding drum 206 in the vertical plane are synthesized. The strip-shaped member 100 makes a torsional rotation in accordance with the pipe-forming operation, and the unwinding device T follows the rotation with the turntable 204 in synchronization with the rotation.

(5) When the lining pipe R is installed over the entire length of the culvert P, the gap between the culvert P and the lining pipe R is filled with cement milk M, and the solidification of the milk is completed. .

(Effects of the Embodiment) The apparatus for lining a pipe in a sewer according to the present embodiment is implemented in the manner described above, and thus exhibits the following effects. According to the apparatus of the present embodiment, the produced lining pipe R is left in the sewer P as it is, so that a long lining work can be performed without being restricted by the diameter of the lining pipe and the pipe production distance. Further, the lining pipe R having a bend can be created, and it is possible to cope with a case where a bend exists in the sewer P. The device S is guided at a predetermined pitch by the engagement and guide action between the annular flange portion 56 of the outer roller 3 and the groove 104 of the belt-shaped member 100, and the lining pipe R is reliably formed. Further, according to the lining construction apparatus in the sewer of the present embodiment, the mounting frame is formed of a rigid annular body, and the guide roller is disposed on the outer periphery thereof, so that the roundness of the roundness is reduced. A high lining pipe R is produced.

The present invention is not limited only to the above-described embodiments, and various design changes can be made within the scope of the basic technical concept of the present invention. That is, the following embodiments are included in the technical scope of the present invention. The mounting frame 1 is not limited to a divided body and may be an integral body, and is not limited to the number of divisions. In the guide rollers 2, all of them may be smooth guide rollers 2 A, or all of them may be flanged guide rollers 2.
B. The joining mechanism 5 is not limited to the hydraulic drive, but may be a pneumatic motor or an electric motor. When using a pneumatic motor, the adoption of the rotary joint 52 is the same, but when using an electric motor, a rotary brush is used instead of the rotary joint. Alternatively, the rollers 3 and 4 are driven by a handle operation via the gear mechanism 31 without excluding the manual mechanism.

C. Effect of the Invention According to the apparatus for lining a pipe in a sewer of the present invention, the manufactured lining pipe is left in the sewer as it is,
Long lining work can be performed without being limited by the diameter of the lining pipe and the pipe making distance. In addition, a lining pipe having a bend can be created, and it is possible to cope with a case where a bend exists in a sewer. Further, since the mounting frame is formed of a highly rigid annular body and a guide roller is provided on the outer periphery thereof, a lining pipe R having a constant diameter and a high roundness can be produced stably. Is done.

[Brief description of the drawings]

FIG. 1 is a partial side elevational sectional view schematically showing an entire embodiment of an apparatus for lining a pipe in a pipe according to the present invention.

FIG. 2 is a front view of a mounting frame of a main part of the apparatus for lining an inside of a pipe according to the present invention.

FIG. 3 is a side view thereof (a view as seen in the direction of arrow III in FIG. 2).

FIG. 4 is a plan view thereof (a view in the direction of arrow IV in FIG. 2).

FIG. 5 is a side view of a divided body of the mounting frame.

FIG. 6 is a view taken in the direction of arrow VI in FIG. 5;

FIG. 7 is a view taken in the direction of the arrow VII in FIG. 5;

FIG. 8 is a structural diagram of a roller.

FIG. 9 is a structural diagram of a guide roller.

FIG. 10 is an enlarged front view of a joining mechanism.

FIG. 11 is an internal configuration diagram (cross-sectional view taken along line XI-XI of FIG. 10) of the joining mechanism.

FIG. 12 is an enlarged sectional view of a joining roller portion.

FIG. 13 is a diagram showing another embodiment of the construction apparatus.

FIG. 14A is a cross-sectional view illustrating one embodiment of a band-shaped member.
FIG. 2B is a cross-sectional view showing the bonding relationship between the belt-shaped members.

FIG. 15 (a) is a sectional view showing another embodiment of the belt-shaped member.
FIG. 2B is a cross-sectional view showing the bonding relationship between the belt-shaped members.

[Explanation of symbols]

P ... sewer, R ... lining pipe, S ... lining construction device, 1 ... mounting frame, 2 ... guide roller, 3 ... outer roller, 4 ... inner roller, 5 ... guide mechanism, 100, 12
0: band-shaped member, 110, 130: guide groove

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Naoki Kitahashi 75, Nojiri, Ritto-cho, Kurita-gun, Shiga Prefecture Inside Sekisui Chemical Co., Ltd. In-company (56) References JP-A-4-103337 (JP, A) JP-A-62-151220 (JP, A) JP-A-2-41231 (JP, A) JP-A-62-20987 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) F16L 1/024 E03B 7/00 E03F 3/04

Claims (6)

(57) [Claims] 1. A pipe formed by spirally winding a continuously supplied long strip-shaped member having joints formed on both side edges thereof in a duct, and engaging adjacent joints with each other. A pipe-making apparatus for forming a tubular body with a band-shaped member newly supplied in front of the already-formed tubular body while leaving the body to remain, and having a required width, forming an annular shape and maintaining rigidity. A mounting frame disposed inside the tubular body; a plurality of guide rollers disposed on the outer periphery of the mounting frame and at a predetermined pitch in a circumferential direction and abutting on an inner surface of the tubular body; And a joining mechanism portion including an outer roller and an inner roller that are disposed at a closed portion between the already formed tubular body and the newly supplied band member and that sandwich the band member. That Characteristic lining construction equipment in sewers. 2. The apparatus according to claim 1, wherein the mounting frame is assembled by individual divided bodies divided in a circumferential direction and can be disassembled. 3. The apparatus according to claim 1, wherein a concave groove is formed in a longitudinal direction on an outer surface of the band-shaped member. 4. The apparatus according to claim 3, wherein the outer roller is engaged with the groove in the longitudinal direction of the outer surface of the belt-shaped member. 5. The apparatus according to claim 3, wherein a concave groove is formed in a vertical direction on an inner surface of the belt-shaped member. 6. The apparatus according to claim 5, wherein a part or all of the guide roller is engaged with the concave groove in the longitudinal direction of the inner surface of the belt-shaped member.