JP2000062026A - Flange forming member, branch pipe lining material, branch pipe lining method, and pipe lining method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an economical lining material for a branch pipe which can reduce manufacturing cost and stabilize quality and perform mass production and generate no part for waste processing when it is used. SOLUTION: In a lining material 1 for a branch pipe prepd. by a method wherein the outer surface of a pipe-like resin adsorption material 3 is hermetically covered with a plastic film 2 and after the pipe-like resin adsorption material 3 is impregnated with an uncured curable resin, one end of the pipe-like resin adsorption material 3 is folded back before or after the pipe-like resin adsorption material 3 is cut into a specified length and a flange forming member 4 is fitted on the folded part, the flange forming member 4 is constituted by pinching one end of the pipe-like resin adsorption material 3 with a cylindrical, polygonal prism-like or ring-like inner inserting member 5 fitted in the inner peripheral part of the one end of the pipe-like resin adsorption material 3 and a cylindrical, polygonal prism-like or ring-like outer inserting member 5 fitted on the outer peripheral part of the one end of the pipe-like resin adsorption material 3 and bonding and integrating them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flange forming member, a branch pipe lining material having the flange forming member attached to one end, a branch pipe lining method and a pipe lining method constructed using the branch pipe lining material. .

[0002]

2. Description of the Related Art To line a branch pipe such as a sewer pipe,
As shown in FIG. 12, the collar 104 of the branch pipe lining material 101 having the collar 104 formed at one end is connected to the main pipe (sewer pipe) 12
The branch pipe lining material 101 in a state of being closely attached to the peripheral edge of the branch pipe opening portion of 0 (the portion where the branch pipe 121 opens to the main pipe 120)
Is inverted and inserted upward into the branch pipe 121 by fluid pressure as shown by a broken line in the figure. Then, when the inversion insertion of the branch pipe lining material 101 into the branch pipe 121 is completed, as shown by the solid line in FIG.
The thermosetting resin with which the branch pipe lining material 101 is impregnated is cured while 1 is pressed against the inner wall of the branch pipe 121. Then, the branch pipe 121 becomes the hardened branch pipe lining material 101.
Lined by.

By the way, conventionally, a branch pipe lining material 101 has been used.
Was manufactured by bending one end of a tubular resin adsorbent such as a non-woven fabric outward, impregnating the bent portion with a curable resin, and curing the curable resin to integrally form the collar 104. (See, for example, Japanese Patent No. 2528430).

[0004]

However, in the conventional branch pipe lining material 101, the collar 104 is integrally formed at one end of the material, and therefore the manufacturing thereof has to rely exclusively on manual work by a craftsman. However, there is a problem that it is not suitable for stabilizing the quality and mass production, and the manufacturing cost is high.

Further, when the branch pipe lining material is manufactured as a stock product, the branch pipe lining material is manufactured to be slightly longer than the actual length of the branch pipe so that it can be used for branch pipes of various lengths. At that time, the method of cutting the branch pipe lining material to the actual length of the branch pipe was used, so there was a wasteful part of the branch pipe lining material that was discarded without being used for lining, which was extremely uneconomical. There was also the problem of being.

The present invention has been made in view of the above problems, and an object of the present invention is to reduce the manufacturing cost, stabilize the quality and mass-produce the product, and to eliminate the waste disposal part when used. An object of the present invention is to provide a typical branch pipe lining material, a collar forming member constituting the branch pipe lining material, a branch pipe lining construction method using the branch pipe lining material, and a pipe lining construction method.

[0007]

In order to achieve the above-mentioned object, the invention according to claim 1 is such that a tubular resin adsorbent formed by impregnating an uncured curable resin is attached to one end folded back to the outside. The flange forming member of the body, a cylindrical shape that fits into one end inner peripheral portion of the tubular resin adsorbent, a polygonal columnar or ring-shaped internal insertion member, and a cylindrical shape that fits into one end outer peripheral portion of the tubular resin adsorbent material, It is characterized in that one end of the tubular resin adsorbing material is sandwiched by a polygonal columnar or ring-shaped external insertion member, and is joined and integrated.

According to a second aspect of the invention, in the first aspect of the invention, a convex portion is formed on the outer periphery of the internal insertion member,
It is characterized in that a recess is formed on the inner circumference of the outer insertion member.

According to a third aspect of the present invention, in the first or second aspect of the invention, the outer diameter of the outer insertion member is set smaller than the inner diameter of the branch pipe opening, and the outer insertion member and the branch pipe opening are provided. It is characterized in that a clearance is provided between them.

According to a fourth aspect of the present invention, in the first, second or third aspect of the invention, the inner insertion member and the outer insertion member are formed into an arcuate curved surface along the inner peripheral surface of the main pipe. To do.

A fifth aspect of the invention is characterized in that, in the first to third or fourth aspects of the invention, all or part of the inner insertion member and the outer insertion member are molded by a plastic injection molding method.

According to a sixth aspect of the present invention, the outer surface of the tubular resin adsorbent is airtightly covered with a plastic film, and the tubular resin adsorbent is impregnated with an uncured curable resin.
Before or after cutting the tubular resin adsorbent into a predetermined length, one end of the tubular resin adsorbent is folded back to the outside, and a collar forming member is attached to the folded back portion. The cylindrical, polygonal columnar or ring-shaped inner insertion member that fits into the portion and the cylindrical, polygonal columnar or ring-shaped outer insertion member that fits into the outer peripheral portion at one end of the tubular resin adsorbent are combined and integrated. It is characterized in that the collar forming member is configured.

According to a seventh aspect of the present invention, in the sixth aspect of the invention, the inner insertion member and the outer insertion member forming the collar forming member are integrally connected by a bolt / nut or a rivet.

The invention of claim 8 is characterized in that, in the invention of claim 6 or 7, a perforation protection member is attached to the inside or the inner peripheral portion of the tubular resin adsorbent or the collar forming member.

The invention according to claim 9 is characterized in that, in the invention according to claim 6 or 7, a main lining material plate thickness reducing member is attached to the collar forming member.

According to a tenth aspect of the present invention, a tubular resin adsorbent impregnated with a curable resin has a cylindrical shape fitted to an inner peripheral portion at one end thereof.
One end of the tubular resin adsorbent is sandwiched and integrated by a polygonal columnar or ring-shaped inner insertion member and a cylindrical, polygonal columnar or ring-shaped outer insertion member that fits on the outer peripheral portion at one end of the tubular resin adsorbent. From the main pipe side into the branch pipe by fluid pressure with the flange forming member being attached to one end of the tubular resin adsorbent and the flange forming member being pressed against the peripheral edge of the branch pipe opening of the main pipe. It is characterized in that the curable resin impregnated into the branch pipe lining material is cured while the branch pipe lining material is inverted and inserted toward the ground while the branch pipe lining material is pressed against the inner peripheral wall of the branch pipe.

According to an eleventh aspect of the present invention, a tubular resin adsorbent impregnated with a curable resin has a cylindrical shape fitted to an inner peripheral portion at one end,
One end of the tubular resin adsorbent is sandwiched and integrated by a polygonal tubular or ring-shaped internal insertion member and a cylindrical, polygonal tubular or ring-shaped external insertion member that fits on the outer peripheral portion at one end of the tubular resin adsorbent. A branch pipe lining material, which is formed by attaching a flange forming member formed at one end of a tubular resin adsorbent, to the main pipe inside the branch pipe by fluid pressure with the collar forming member being pressed against the peripheral edge of the branch pipe opening of the main pipe. Inserted from the side toward the ground, and after lining the branch pipe lining material by curing the curable resin impregnated in the branch pipe lining material while pressing the inner peripheral wall of the branch pipe, the tubular pipe A main pipe lining material obtained by impregnating a resin adsorbent with an uncured curable resin is reversely inserted into the main pipe by fluid pressure, and the main pipe lining material is pressed against the inner peripheral wall of the main pipe. Harden the curable resin impregnated in It is to make the lining of the main pipe,
A part of the main lining material that blocks the branch pipe opening is perforated.

Therefore, according to the present invention, in the branch pipe lining material, the collar forming member, which is formed separately from the tubular resin adsorbing material, is formed by connecting and integrating the inner insertion member and the outer insertion member. Since it is manufactured by attaching the collar forming member to one end of the tubular resin adsorbent material, it is possible to mechanically mass-produce the inner insertion member and the outer insertion member constituting the collar forming member independently of the tubular resin adsorbent material. As a result, a branch pipe lining material can be easily manufactured without requiring a skilled craftsman, a high-quality branch pipe lining material can be stably obtained, and a collar forming member can be manufactured. The cost is reduced, and as a result, the manufacturing cost of the branch pipe lining material is reduced.

Further, the tubular resin adsorbent and the collar forming member are manufactured separately and stored as an inventory, and when the lining is applied, the tubular resin adsorbent is cut into actual branch pipe lengths. Since a branch pipe lining material can be obtained by attaching a flange forming member to one end of the cut tubular resin adsorbent material each time, it can be manufactured longer than the actual length of the branch pipe as in the past. There is no need to cut the actual branch pipe lining material into the actual length of the branch pipe during construction, and there is no waste of waste in the branch pipe lining material, resulting in great economic efficiency. The cost of the pipe lining material can be reduced.

Further, since the branch pipe lining is constructed by using the branch pipe lining material capable of reducing the manufacturing cost, stabilizing the quality and mass-producing, the lining work including the main pipe lining can be performed at a low cost. You can

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a sectional view of a branch pipe lining material 1 according to the present invention. The branch pipe lining material 1 has a tubular resin adsorbing material 3 whose outer peripheral surface is covered with a highly airtight plastic film 2. is doing. Incidentally, plastic film 2
A film made of polyethylene, vinyl chloride, vinylon, polyurethane, nylon, polypropylene, polyethylene-nylon copolymer, or the like is used as the tubular resin adsorbent 3, and a nonwoven fabric such as polyester, nylon, acrylic, or vinylon is used as the tubular resin adsorbent 3.

The tubular resin adsorbent 3 is impregnated with the uncured liquid curable resin, and one end (the upper end in FIG. 1) of the tubular resin adsorbent 3 is folded outward and the folded back. The edge is pushed outward to form a ring-shaped push-out portion 3a. As the uncured liquid curable resin with which the tubular resin adsorbent 3 is impregnated, thermosetting resin such as unsaturated polyester resin, epoxy resin, vinyl ester resin or the like is used.

A flange forming member 4, which is a separate member, is attached to the push-spreading portion 3a formed at the end of the folded-back portion at one end of the tubular resin adsorbent 3 and its surroundings.

Here, the collar forming member 4 is a cylindrical inner insertion member 5 fitted to the inner peripheral portion of one end of the tubular resin adsorbent 3.
And a cylindrical outer insertion member 6 fitted to the outer peripheral portion of one end of the tubular resin adsorbent 3, and a ring-shaped inner surface layer 7 are assembled and integrated, and the flange portion 6a of the outer insertion member 6 is formed.
The inner surface layer 7 is formed into an arcuate curved surface along the inner peripheral surface of the main pipe 20 shown in FIG. The outer diameter d of the external insertion member 6 is set to be smaller (d <D) than the inner diameter D of the branch pipe opening (the portion where the branch pipe 21 opens into the main pipe 20) shown in FIG.

By the way, the inner insertion member 5, the outer insertion member 6 and the inner surface layer 7 are made of metal or plastic, and all or part of them are formed by a plastic injection molding method (injection molding method), press working, die casting method or the like. Each is mechanically produced alone (in addition to the tubular resin adsorbent 3) in mass production. The inner insertion member 5 and the outer insertion member 6 may be formed in a polygonal tube shape or a ring shape.

A convex tapered surface 5a is formed on the outer peripheral portion of the upper end of the inner insertion member 5 so as to reduce in diameter upward, and the inner peripheral portion of the upper end of the outer insertion member 6 also faces upward. A concave tapered surface 6b is formed to reduce the diameter.

Then, the inner insertion member 5 is inserted into the inner peripheral portion of one end of the tubular resin adsorbing material 3, and the expanded resin portion 3a of the tubular resin adsorbing material 3 and the ring-shaped resin adsorbing portion arranged on the outer peripheral side thereof. The upper and lower sides of the material 8 are sandwiched between the outer insertion member 6 and the inner surface layer 7 and the two are connected by a plurality of bolts 9 and nuts 10, whereby the collar forming member 4 is assembled, whereby the collar forming member 4 is attached to one end. A branch pipe lining material 1 to which is attached is obtained. In this case, when the outer insertion member 6 and the inner surface layer 7 are tightened with the bolts 9 and the nuts 10, the tubular resin adsorbent 3 becomes the tapered surface 5 formed on the inner insertion member 5.
It is tightened by the wedge action of a and the tapered surface 6b formed on the external insertion member 6, so that it is reliably prevented from coming off from the collar forming member 4. The ring-shaped resin adsorbent 8 is made of the same material as the tubular resin adsorbent 3.
Alternatively, the outer insertion member 6 and the inner surface layer 7 may be joined by rivets.

By the way, a resin adsorbent 8 is formed on the collar forming member 4.
And a plurality of resin filling holes 11 penetrating the outer insertion member 6 and the inner surface layer 7.

On the inner peripheral portion of the collar forming member 4, there is provided a cylindrical main pipe lining material plate thickness reducing member 12 along the inner peripheral surface of the folded back portion of the tubular resin adsorbent 3. The flange portion 12a of the plate thickness reducing member 12 has a bolt 9
It is attached to the collar forming member 4 by being tightened together with the nut 10. The main lining material plate thickness reducing member 12 is made of metal, ceramic, metal fiber or carbon fiber, and its lower end peripheral edge forms a sharp knife edge. In FIG. 1, 13 is a packing made of a resin adsorbent.

The branch pipe lining material 1 according to the present invention
In the above, one end of the draw-split tube 14 is sandwiched between the inner insertion member 5 of the collar forming member 4 and the tubular resin adsorbent 3, and the other end of the draw-split tube 14 has the plate thickness reducing member 12 It extends downward through the inside of the. In addition, the pulling-and-slicing tube 14 is configured by covering the inner peripheral surface of a tubular non-woven fabric 14a with a plastic tube 14b, one end of which is bent outward as shown in the drawing, and only the plastic tube 14b extending from the end thereof is a collar. Internal insert member 5 of forming member 4 and tubular resin adsorbent 3
It is sandwiched between and.

As described above, in the branch pipe lining material 1 according to this embodiment, the tubular resin adsorbent 3 is provided at one end thereof.
A collar forming member 4 which is a separate member is attached, but the other end of the branch pipe lining material 1 is sealed by a plastic film 2.

In the branch pipe lining material 1 according to this embodiment, the tubular resin adsorbent 3 and the inner insertion member 5, the outer insertion member 6, and the inner surface layer 7 which are separate members are fixed by the bolt 9 and the nut 10. The inner insertion member 5, the outer insertion member 6 and the inner surface layer 7 are formed separately from each other by a plastic injection molding method (injection method), a press working, a die casting method. Etc. can be mass-produced mechanically,
These manufacturing costs are reduced, and as a result, the manufacturing costs of the branch pipe lining material 1 can be reduced.

Before or after cutting the tubular resin adsorbent 3 impregnated with the uncured curable resin into a predetermined length,
Forming a spreading portion 3a at one end of the tubular resin adsorbent 3;
By incorporating the separately inserted mass-produced inner insertion member 5, outer insertion member 6 and inner surface layer 7 into the spread portion 3a, a branch pipe lining material 1 having a separate collar forming member 4 attached to one end is obtained. Therefore, the branch pipe lining material 1 can be easily manufactured without resorting to a skilled craftsman.
The high quality branch pipe lining material 1 can be stably obtained.

Furthermore, the tubular resin adsorbent 3 and the internal insertion member 5
The outer insertion member 6 and the inner surface layer 7 are manufactured separately and stored as an inventory, and the tubular resin adsorbent 3 is cut to the actual length of the branch pipe 21 when the lining is applied. Since the branch pipe lining material 1 can be obtained by incorporating the inner insertion member 5, the outer insertion member 6 and the inner surface layer 7 into one end of the tubular resin adsorbent 3 each time, the branch pipe lining material 1 is longer than the actual length of the branch pipe. Also, it is not necessary to cut the long-manufactured branch pipe lining material to the actual length of the branch pipe at the time of construction, and there is no useless portion of the branch pipe lining material 1 to be discarded, which makes it extremely economical. As a result, the cost of the branch pipe lining material 1 can be reduced.

Next, a branch pipe lining method and a pipe lining method according to the present invention, which are constructed by using the branch pipe lining material 1 according to the present invention and a main pipe lining material 33 (see FIG. 7) described later, are shown in FIG. ~ It demonstrates based on FIG. 2 to
FIG. 9 is a sectional view showing the branch pipe lining method and the pipe lining method according to the present invention in the order of steps.

First, a branch pipe lining construction method using the branch pipe lining material 1 shown in FIG. 1 will be described with reference to FIGS.

In FIG. 2, 20 is a main pipe and 21 is a branch pipe that joins the main pipe.
2. The pressure bag 23 and the like are retracted. The work robot 22 is hydraulically driven, and a television camera 24 for monitoring is installed above the work robot 22.

The branch pipe lining material 1 is inserted into the pressure bag 23, and the branch pipe lining material 1 is inserted.
The open end of the pull-slipping tube 14 is a pressure bag 2
It is attached to 3. And branch pipe lining material 1
The collar forming member 4 formed at one end of the collar is supported by a setting arm 25 detachably attached to the head 22a of the work robot 22.
An air mat 26 is provided between the setting arm 25 and the setting arm 25.

Further, the setting arm 25 and the pressure bag 23 are connected by a guide tube 27, and the length of the guide tube 27 is set to be shorter than the length of the pull-split tube 14.

In the above, the work robot 22, the pressure bag 23 and the like move integrally within the main pipe 20 by pulling a tow rope (not shown), but the television camera 24
While monitoring the inside of the main pipe 20 on the ground, the collar forming member 4 of the branch pipe lining material 1 is positioned at the opening of the branch pipe 21 as shown in FIG. At this time, as described above, the outer diameter d of the outer insertion member 6 of the collar forming member 4 is set smaller than the inner diameter D of the branch pipe opening (d <D). A predetermined clearance is formed between the branch pipe opening portion and the branch pipe lining material 1 can be easily positioned in the branch pipe opening portion.

Next, when a compressor (not shown) is driven to supply compressed air to the pressure bag 23 and the air mat 26 respectively, the air mat 26 expands as shown in FIG. 2 to form a collar for the branch pipe lining material 1. Member 4 to branch pipe 21
Make sure that it adheres to the periphery of the opening.

When compressed air is supplied into the pressure bag 23, the branch pipe lining material 1 in the pressure bag 23 receives the pressure of the compressed air and inverts in the branch pipe 21 as shown in FIG. Is inserted toward the ground from the main 20 side.

When the inversion insertion of the branch pipe lining material 1 into the branch pipe 21 is completed, a cup 28 is attached to the end portion of the branch pipe lining material 1 and connected to the cup 28, as shown in FIG. Compressed air is supplied from the air hose 29 into the branch pipe lining material 1, and while the branch pipe lining material 1 is pressed against the inner peripheral wall of the branch pipe 21, the pump 30 is driven to heat the hot water in the hot water tank 31. When injected into the branch pipe lining material 1 through the hose 32, the branch pipe lining material 1
The thermosetting resin impregnated in the (tubular resin adsorbing material 3) is heated and hardened, and the inner peripheral surface of the branch pipe 21 is lined and repaired and reinforced by the hardened branch pipe lining material 1.

When the branch pipe 21 is lined as described above, the warm water in the branch pipe lining material 1 is drained, and the pressure bag 23 is pulled in the arrow direction (rightward direction) of FIG. Get burned. Then, since the pressure bag 23 and the work robot 22 are connected by the guide tube 27, the work robot 22 also moves integrally with the pressure bag 23 in the main pipe 20, and the collar forming member 4 (of the branch pipe lining material 1). The split tube 14 sandwiched between the internal insertion member 5) and the tubular resin adsorbent 3 is split from the end of the plastic tube 14b (see FIG. 1), and the stripped tube 14 is split.
Moves in the main pipe 20 together with the pressure bag 23, etc.
It is removed from 0 and collected.

Then, as shown in FIG. 6, only the hardened branch pipe lining material 1 remains in the branch pipe 21, and a series of branch pipe lining work ends there. At this time, the branch pipe lining material 1 In FIG. 1, the main lining material plate thickness reducing member 12 projects into the main pipe 20 as shown in the drawing.

When the lining of the branch pipe 21 is completed, the lining of the main pipe 20 is next performed. The main pipe lining method will be described below with reference to FIGS. 7 to 9.

At the time of applying the lining to the main pipe 20, the main lining material 33 is reversed and inserted into the main pipe 20 by fluid pressure such as compressed air as shown in FIG. Is formed by impregnating an uncured liquid curable resin (a thermosetting resin in the present embodiment) into a tubular resin adsorbent 33b whose outer peripheral surface is covered with a highly airtight plastic film 33a. . As the plastic film 33a, the tubular resin adsorbent 33b, and the liquid curable resin, the branch pipe lining material 1 is used.
The same as that used for is used.

Then, as shown in FIG. 8, when the reverse insertion of the main lining material 33 into the main pipe 20 is completed over the entire length of the main pipe 20, fluid pressure is applied to the inside of the main lining material 33. To press the main lining material 33 against the inner peripheral wall of the main pipe 20. Then, the sharp tip edge portion of the plate thickness reducing member 12 on the side of the branch pipe lining material 1 contacts the outer peripheral surface of the main pipe lining material 33, and the tip edge portion of the plate thickness reducing member 12 becomes the main pipe as illustrated. By biting into the outer peripheral surface of the lining material 33, the plate thickness of that portion of the main lining material 33 is locally reduced.

When the main pipe lining material 33 is pressed against the inner peripheral wall of the main pipe 20 by the fluid pressure as described above, the uncured liquid curable resin impregnated in the main pipe lining material 33 is cured. Seepage from the outer peripheral surface of the pipe lining material 33,
A part thereof flows into and is filled in the resin filling hole 11 (see FIG. 1) formed in the collar forming member 4 of the branch pipe lining material 1.

Then, the main lining material 33 is attached to the main pipe 20.
When the main lining material 33 is heated by an arbitrary heating means while being pressed against the inner peripheral wall of the, the thermosetting resin impregnated in the main lining material 33 is cured.
The inner peripheral surface of the main pipe 20 is lined and repaired by this, but the portion of the main lining material 33 where the plate thickness is locally reduced is hardened as it is, so that portion is compared to other portions. The strength is weakening.

Therefore, as shown in FIG. 9, the high-pressure water reverse injection nozzle 35 attached to the tip of the high-water pressure hose 34 is inserted into the branch pipe 21 from the ground, and the high-pressure water hose 34 is supplied with high-pressure water. When this is back-injected from the rear end surface of the high-pressure water reverse injection nozzle 35, the high-pressure water reverse injection nozzle 35 moves downward due to the reaction force of the high-pressure water that is reversely injected, and the branch pipe opening of the main lining material 33. The part that closes the pipe (branch pipe lining material 3
3), the impact force is applied to the portion surrounded by the plate thickness reducing member 12), so that a high stress is locally generated in the portion of the main lining material 33 where the plate thickness is reduced, and this portion is broken and the main pipe is cut. The portion of the lining material 33 that closes the branch pipe opening is punched out in a circular shape as shown in the figure and falls. As a result, the branch pipe 21
Is opened in the main pipe 20 so that they are communicated with each other, and the lining for the branch pipe 21 and the main pipe 20 is completed here.

Thus, in the branch pipe lining method and the pipe lining method according to the present invention, as described above, the branch pipe lining material 1 capable of reducing the manufacturing cost, stabilizing the quality and mass producing is used. Therefore, the lining work including the main lining can be performed at low cost.

Further, in the pipe lining method according to the present invention, the plate thickness reducing member 12 on the side of the branch pipe lining material 1 bites into the outer peripheral surface of the main pipe lining material 33 so that a predetermined portion (perforation) of the main pipe lining material 33 is formed. In order to locally reduce the plate thickness of the portion (which should be), the portion can be broken by applying an external force to the portion, and the main pipe lining material 33 follows the contact portion shape of the plate thickness reducing member 12. Accurate,
And it is easily perforated.

Further, as described above, when the main pipe 20 is lined, the uncured liquid curable resin impregnated in the main pipe lining material 33 oozes out from the outer peripheral surface of the main pipe lining material 33, and a part thereof is branched. The collar forming member 4 of the branch pipe lining material 1 because it flows into the resin filling hole 11 formed in the collar forming member 4 of the pipe lining material 1 and hardens as it is.
The main lining material 33 and the main lining material 33 are firmly joined and integrated, so that intrusion of water from the joint portion of both is surely prevented.

Next, FIG. 10 shows a branch pipe lining material 1'according to another embodiment of the present invention.

That is, FIG. 10 is a sectional view of a branch pipe lining material 1'according to another embodiment of the present invention. The branch pipe lining material 1'is a main pipe lining material plate thickness reducing member for the branch pipe lining material 1. A cylindrical perforation protection member 15 is attached to the collar forming member 4 instead of 12, and the other configurations are the same as those of the branch pipe lining material 1. Therefore, FIG.
2, the same elements as those shown in FIG. 1 are designated by the same reference numerals.

The perforation protection member 15 is made of metal, metal fiber, ceramic, carbon fiber or Kevlar fiber, and the flange portion 15a thereof is attached to the collar forming member 4 by being fastened together with the bolt 9 and the nut 10. Has been.

Thus, even if the branch pipe lining material 1'provided with the perforation protection member 15 is used, the branch pipe lining construction method can be carried out in the same manner as described above, and the external insertion member 6 of the branch pipe lining material 1'can be formed. Since the outer diameter d is set to be smaller than the inner diameter D of the branch pipe opening (d <D), a predetermined distance is provided between the outer insertion member 6 of the collar forming member 4 and the branch pipe 21 when the branch pipe 21 is lined. Clearance is formed, and the external insertion member 6 fits into the peripheral wall of the opening of the branch pipe 21 and functions as a guide for positioning the branch pipe lining material 1 ′. Therefore, the collar forming member 4 is remotely operated from the ground. Positioning of the branch pipe 21 at the opening is easily and surely performed.

The lining of the main pipe 20 is performed in the same manner as described above, but the punching work of the main lining material 33 is a cutter driven by the work robot 40 introduced into the main pipe 20 as shown in FIG. Made by 41.

That is, the work robot 40 is hydraulically driven, and the head 40a thereof can move back and forth in the direction of arrow a in FIG. 11 and can rotate in the direction of arrow b. 42 and 43 are connected, and a TV camera 44 for monitoring is installed on the upper part.
A hydraulic cylinder 45 is attached to the head 40a of the work robot 40, and a hydraulic motor 46 is supported on a rod 45a of the hydraulic cylinder 45 which moves up and down in the direction of arrow c.

The output shaft 46 of the hydraulic motor 46 is
The cutter 41 having an outer diameter smaller than the diameter of the perforation protection member 15 attached to the branch pipe lining material 1'is attached to a, and cutting teeth are provided on the upper and lower surfaces and the outer peripheral surface of the cutter 41. The reamer 41a is attached to the center of the upper surface of the reamer 41a.

Then, while the inside of the main pipe 20 and the inside of the branch pipe 21 are monitored on the ground by the TV camera 44 installed in the work robot 40 and the TV camera 47 introduced into the branch pipe 21, respectively, the tow rope is By pulling 42 or 43, the work robot 40 is moved within the main pipe 20 to position the cutter 41 at a predetermined position.

Thereafter, the hydraulic cylinder 45 is driven to move the hydraulic motor 46 and the cutter 41 upward while the hydraulic motor 46 is driven to rotate the cutter 41, whereby the branch pipe opening of the main lining material 33 is opened. The portion that closes the portion (the portion surrounded by the perforation protection member 15) is the cutter 41.
However, at this time, the inner peripheral portion of the branch pipe lining material 1 ′ near the collar forming member 4 is covered and protected by the perforation protection member 15, so that the inner peripheral portion is cut by the cutter and damaged. Therefore, there is no problem such as groundwater entering the main pipe 20 from the damaged portion.

[0065]

As is apparent from the above description, according to the present invention, the branch pipe lining material includes the collar forming member which is formed separately from the tubular resin adsorbing material and which is the inner insertion member and the outer insertion member. Since it is manufactured by attaching the collar forming member to one end of the tubular resin adsorbent, the inner insertion member and the outer insertion member constituting the collar forming member are independent of the tubular resin adsorbent. As a result, it is possible to mass-produce mechanically, and as a result, it is possible to easily manufacture a branch pipe lining material without requiring a skilled craftsman.
It is possible to stably obtain a high-quality branch pipe lining material, reduce the manufacturing cost of the collar forming member, and consequently reduce the manufacturing cost of the branch pipe lining material.

Further, the tubular resin adsorbent and the collar forming member are manufactured separately and stored as an inventory, and the tubular resin adsorbent is cut to the actual length of the branch pipe at the time of lining work. Since a branch pipe lining material can be obtained by attaching a flange forming member to one end of the cut tubular resin adsorbent material each time, it can be manufactured longer than the actual length of the branch pipe as in the past. Since it is not necessary to cut the actual branch pipe lining material into the actual length of the branch pipe at the time of construction, there is no wasteful portion of the branch pipe lining material that is discarded, resulting in great economic efficiency. The effect that the cost of the pipe lining material can be reduced is obtained.

Further, since the branch pipe lining is constructed by using the branch pipe lining material capable of reducing the manufacturing cost, stabilizing the quality and mass-producing, the lining work including the main pipe lining can be performed at a low cost. The effect of being able to do is obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a branch pipe lining material according to the present invention.

FIG. 2 is a cross-sectional view showing a branch pipe lining method according to the present invention.

FIG. 3 is a sectional view showing a branch pipe lining method according to the present invention.

FIG. 4 is a sectional view showing a branch pipe lining method according to the present invention.

FIG. 5 is a sectional view showing a branch pipe lining method according to the present invention.

FIG. 6 is a sectional view showing a branch pipe lining method according to the present invention.

FIG. 7 is a cross-sectional view showing a pipe lining method according to the present invention.

FIG. 8 is a sectional view showing a pipe lining method according to the present invention.

FIG. 9 is a cross-sectional view showing a pipe lining method according to the present invention.

FIG. 10 is a sectional view of a branch pipe lining material according to another embodiment of the present invention.

FIG. 11 is a cross-sectional view showing a boring operation for a main pipe lining material.

FIG. 12 is a cross-sectional view showing a conventional pipe lining method.

[Explanation of symbols]

1,1 'Branch pipe lining material 2 plastic film 3 Tubular resin adsorbent 4 Tsuba forming member 5 Internal insertion member 5a Tapered surface (projection) 6 External insertion member 6b Tapered surface (recess) 9 bolts 10 nuts 12 Main lining material Plate thickness reduction member 15 Perforation protection member 20 mains 21 Branch pipe 33 Main lining material

   ─────────────────────────────────────────────────── ─── Continued front page    (71) Applicant 592004301             All Co., Ltd.             4 of 1-194, Hayashi, Tokorozawa, Saitama (72) Inventor Takao Kamiyama             31-27 Daikanmachi, Hiratsuka City, Kanagawa Prefecture Sho Inc.             Minami Synthetic Resin Factory (72) Inventor Yasuhiro Yokoshima             175-3 Sasayama, Ishishita-cho, Yuki-gun, Ibaraki             Company Yokoshima (72) Inventor Shigeru Endo             2-12-4 Hanabata, Tsukuba, Ibaraki Prefecture             Inside (72) Inventor Hiroyuki Aoki             4 stock associations at 1194 Hayashi, Tokorozawa, Saitama             In the company oar F term (reference) 4F211 AD12 AD16 AG08 AG29 SA14                       SC03 SD04 SD23 SG08 SH06                       SJ22 SN03 SN05 SP12 SP25                       TC19

Claims (11)

[Claims] 1. A separate collar forming member attached to one end of a tubular resin adsorbent material impregnated with an uncured curable resin, which is folded back to the outside, wherein the tubular resin adsorbent material has an inner peripheral portion at one end. One end of the tubular resin adsorbent with a cylindrical, polygonal column or ring-shaped inner insertion member that fits into the A collar forming member, characterized in that it is formed by sandwiching and joining together. 2. The collar forming member according to claim 1, wherein a protrusion is formed on the outer periphery of the inner insertion member, and a recess is formed on the inner periphery of the outer insertion member. 3. The outer diameter of the external insertion member is set smaller than the inner diameter of the branch pipe opening, and a clearance is provided between the external insertion member and the branch pipe opening.
Or the collar forming member according to 2. 4. The flange member according to claim 1, wherein the inner insertion member and the outer insertion member are formed in an arc curved surface shape along the inner peripheral surface of the main pipe. 5. The collar forming member according to claim 1, wherein all or part of the inner insertion member and the outer insertion member are molded by a plastic injection molding method. 6. An outer surface of the tubular resin adsorbent is airtightly covered with a plastic film, the tubular resin adsorbent is impregnated with an uncured curable resin, and then the tubular resin adsorbent is made to have a predetermined length. Before or after cutting, one end thereof is folded back to the outside, and in a branch pipe lining material formed by attaching a collar forming member to the folded portion, a cylindrical shape or a polygonal column shape fitted to one end inner peripheral portion of the tubular resin adsorbent material. Alternatively, the collar-forming member is configured by integrally combining a ring-shaped inner insertion member and a cylindrical, polygonal column-shaped, or ring-shaped outer insertion member that fits into an outer peripheral portion at one end of the tubular resin adsorbent. Branch pipe lining material. 7. The branch pipe lining material according to claim 6, wherein the inner insertion member and the outer insertion member forming the collar forming member are integrally connected by a bolt / nut or a rivet. 8. The branch pipe lining material according to claim 6 or 7, wherein a perforation protection member is attached to the inside or the inner peripheral portion of the tubular resin adsorbent or the collar forming member. 9. The main lining material plate thickness reducing member is attached to the collar forming member.
Branch pipe lining material described. 10. A cylindrical, polygonal columnar or ring-shaped internal insertion member fitted to one end inner circumference of a tubular resin adsorbent impregnated with a curable resin and one end outer circumference of a tubular resin adsorbent. A branch pipe lining material obtained by attaching a flange forming member configured by sandwiching one end of a tubular resin adsorbent material with a cylindrical, polygonal columnar or ring-shaped external insertion member and integrally connecting the tubular resin adsorbent material to the one end thereof. With the collar forming member pressed against the peripheral edge of the branch pipe opening of the main pipe, fluid pressure is inserted into the branch pipe from the main pipe side to the ground, and the branch pipe lining material is pressed against the inner peripheral wall of the branch pipe. A branch pipe lining method characterized by curing a curable resin impregnated in a branch pipe lining material. 11. A cylindrical, polygonal columnar, or ring-shaped internal insertion member that fits into one end of the tubular resin adsorbent impregnated with a curable resin, and one end of the tubular resin adsorbent that fits into the outer periphery. A branch pipe lining material obtained by attaching a flange forming member configured by sandwiching one end of a tubular resin adsorbent material with a cylindrical, polygonal columnar or ring-shaped external insertion member and integrally connecting the tubular resin adsorbent material to the one end thereof. With the collar forming member pressed against the peripheral edge of the branch pipe opening of the main pipe, fluid pressure is applied to reversely insert the branch pipe lining material toward the ground from the main pipe side, and the branch pipe lining material is pressed against the inner peripheral wall of the branch pipe. After the curable resin impregnated in the branch pipe lining material is cured to lining the branch pipe, the main pipe lining material made by impregnating the uncured curable resin into the tubular resin adsorbent is fluidized inside the main pipe. Insert it upside down into the main liner The main pipe is lined by curing the curable resin impregnated into the main pipe lining material while pressing the main pipe against the inner peripheral wall of the main pipe, and piercing the portion of the main pipe lining material that blocks the branch pipe opening. A pipe lining method characterized by: