JP2000177008A - Lining pipe material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent corrosion even when water is introduced into an existing pipe and to facilitate boring work by fitting a strip member of a fiber-reinforced thermosetting resin to the main body of a strip member of a thermoplastic resin. SOLUTION: A lining pipe material A is formed from the main body 1 of a strip member of a thermoplastic resin and a strip member 2 of a fiber- reinforced thermosetting resin. In the main body 1, a projected stripe 12, which is one joint part, and two projected stripes 13, 13 are formed at one end of one side of a strip substrate, and two recessed grooves 14, 15 expanding toward the depth are formed at the other end of the substrate. One reinforcing rib 16 and four reinforcing ribs 17 are formed on side of the substrate. The pipe material A is wound helically, into the recessed groove 14 of one of the materials A, A, the projected stripe 12 of the other adjacent material A is inserted, and the projected stripes 13, 13 of the other material A are inserted into the recessed groove 15. The foot pieces of the strip member 2 are fitted to the reinforcing ribs 17, 17 of the strip member 1 to fit the member 2 to the member 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lining tubing material, and more particularly, to a long tubing member having joints formed on both side edges in an existing pipe, and spirally winding the tubing material into an adjacent pipe. The present invention relates to a lining tube material in which a helical tube is formed by joining joining portions of matching belt-shaped members to form a lining tube.

[0002]

2. Description of the Related Art Conventionally, as described in, for example, Japanese Patent Publication No. 3-48392, a long strip-shaped member having joints formed at both side edges in an existing pipe is supplied.
It is known to form a spiral tube by spirally winding and joining the joining portions of adjacent strip-shaped members to form a lining tube.

[0003] As a material of the long belt-shaped member, a thermoplastic resin such as hard vinyl chloride resin or polyethylene is mainly used.
It is frequently used in terms of moldability and the like.

If the rigidity of the long strip-shaped member is insufficient with only a thermoplastic resin such as a hard vinyl chloride resin or the like, a long steel strip is used to prevent deformation due to external water pressure, internal water pressure, own weight and the like. It has been conventionally proposed to attach the reinforcing material to a belt-shaped member made of a thermoplastic resin.

[0005] The strength of the existing pipe has not decreased so much,
It has also been proposed to provide a lining pipe made of a spiral pipe only for the purpose of smoothing the inner surface of the existing pipe. In this case, it is meaningless to inject a backfill between the existing pipe and the lining pipe, which is economically disadvantageous, so that no backfill is injected.

[0006]

In the case where the backfill material is not injected between the existing pipe and the lining pipe,
The steel reinforcement is exposed between the existing pipe and the lining pipe.If water enters the existing pipe, the steel reinforcement corrodes and does not serve as a reinforcement. there were.

[0007] Of course, even when the backfill material is injected between the existing pipe and the lining pipe, if a crack or the like is generated inside the backfill material and water infiltrates along the crack, the steel is made of steel. However, there was a problem that the reinforcing material corroded and did not serve as a reinforcing material.

Further, in the case of a sewer pipe, it is difficult to perforate the existing pipe when it is necessary to perforate the lining pipe, and when a steel reinforcing material is used.

The present invention has been made in view of the above-mentioned problems in the conventional lining pipe, and has as its object to solve the above-mentioned problems and to solve the problem when water enters the existing pipe. Another object of the present invention is to provide a lining pipe material which is not easily corroded and can be easily drilled.

[0010]

In order to achieve the above object, a lining tubing material of the present invention is to supply a long strip-shaped member having joints formed at both side edges in an existing pipe, and to provide a spiral lining. A lining tube material that is wound into a shape and forms a helical tube by joining the joining portions of adjacent belt-shaped members to form a lining tube, and a fiber-reinforced thermosetting resin is attached to the main body of the thermoplastic resin band-shaped member. And a belt-shaped member made of stainless steel.

In the present invention, as the thermoplastic resin,
What has been conventionally used for the lining tube material can be used as it is, and is not particularly limited. For example, a hard vinyl chloride resin, polyethylene, polypropylene, polycarbonate, or the like can be used.

In the present invention, as the fiber-reinforced thermosetting resin, reinforcing fibers such as glass fiber, carbon fiber, and aramid fiber are impregnated with the thermosetting resin, and the thermosetting resin is cured to form the thermosetting resin. It is made by integrating a conductive resin.

As the reinforcing fibers, those having a long length are more advantageous for improving the rigidity of the lining tube, and therefore it is desirable that the reinforcing fibers are also reinforced in the longitudinal direction by continuous long fibers.

As the thermosetting resin, those conventionally used for ordinary fiber-reinforced thermosetting resins can be used as they are, and are not particularly limited. Examples thereof include unsaturated polyesters, vinyl esters, and epoxy resins. Etc. can be used.

The method of molding the fiber-reinforced thermosetting resin is not particularly limited, and any method conventionally used in the usual method of molding a fiber-reinforced thermosetting resin can be used as it is. Pultrusion molding method,
A filament winding molding method, a press molding method and the like can be used.

Means for attaching the fiber-reinforced thermosetting resin band member to the main body of the thermoplastic resin band member include:
Means for providing a rib for locking on the main body of a belt member made of a thermoplastic resin, locking the band member made of fiber-reinforced thermosetting resin to the rib for locking, a joining member such as an adhesive or a rivet, or the like. And a means for embedding a band member made of fiber-reinforced thermosetting resin at the time of forming the band member made of a thermoplastic resin.

[Operation] In the lining tube material of the present invention, the fiber-reinforced thermosetting resin band member is attached to the main body of the thermoplastic resin band member. The main body is reinforced by a band member made of a fiber reinforced thermosetting resin, and the band member made of a fiber reinforced thermosetting resin is not likely to be corroded by flooding in an existing pipe.
In addition, a belt-shaped member made of a fiber-reinforced thermosetting resin is easier to pierce than a steel band-shaped member.

[0018]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing an example of the lining tube material according to the present invention. In FIG. 1, A
Is a lining tube material, and the lining tube material A is composed of a main body 1 of a band member made of a thermoplastic resin and a band member 2 made of a fiber-reinforced thermosetting resin. As shown in FIG. 2, the main body 1 has, on one end of one side of a strip-shaped substrate 11, a projected ridge 12 and two projected ridges 13, 13, each having a joint, projecting from one end thereof. On the other end of the other surface, two deep grooves 14 and 15 are provided, and one reinforcing rib 16 having an inverted L-shaped cross section and four cross sections T are provided in the middle of one surface of the belt-shaped substrate 11. The reinforcing rib 17 is formed in a projecting manner.
The width W1 of the main body 1 is 102.2 mm, and the height H1 is 1
6.6 mm.

The lining tubing A is spirally wound, and one of the adjacent lining tubing A, A is inserted into the groove 14 of the main body 1 of the lining tubing A, and the other lining tubing A
Of the main body 1 of the other lining tube material A is inserted and fitted into the concave groove 15 of the main body 1 of the other lining tube material A. It has become.

As shown in FIG. 3, the belt-shaped member 2 made of fiber-reinforced thermosetting resin has a substantially groove-shaped cross section, and leg pieces 21, 21 extend diagonally to the lower ends of both side walls. It is configured. The width W2 of the belt-shaped member 2 is 51 mm, the height H2 is 6 mm, and the thickness t is 1.5 mm.

The leg pieces 21 of the belt-shaped member 2 are
The band-shaped member 2 is attached to the band-shaped member 1 by being locked to the two T-shaped reinforcing ribs 17, 17.

Since the lining tube material A of the present invention shown in FIG. 1 has the structure described above, it is inserted into the existing tube 3 and spirally wound as shown in FIG. As shown in FIG. 5, adjacent lining tubing A,
A, the ridges 12, 13 of the main body 1 of the other lining tube material A are inserted and fitted into the two deeply extending concave grooves 14, 15 of the main body 1 of the lining tube material A. A spiral tube is formed. Incidentally, in FIG.
Are not shown.

Although the embodiment of the present invention has been described with reference to the drawings, the specific configuration of the present invention is not limited to the illustrated embodiment, and design changes within the scope of the present invention may be made. Included in the present invention.

[0024]

According to the lining tube material of the present invention,
The main body of the belt member made of thermoplastic resin is reinforced by a band member made of fiber reinforced thermosetting resin, and the band member made of fiber reinforced thermosetting resin is not likely to be corroded by water infiltration into the existing pipe. Can be used for In addition, a belt-shaped member made of a fiber-reinforced thermosetting resin is easier to pierce than a steel band-shaped member.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a lining tube material of the present invention.

FIG. 2 is a sectional view showing a main body of the lining tubing material of the present invention shown in FIG.

FIG. 3 is a sectional view showing a band-shaped member of the lining tubing material of the present invention shown in FIG. 1;

FIG. 4 is a partially cutaway perspective view showing a usage mode of the lining tube material of the present invention shown in FIG. 1;

FIG. 5 is a sectional view showing a joined state of the lining tubing materials of the present invention shown in FIG. 1;

[Explanation of symbols]

 A Lining tube material 1 Main body 11 Substrate 12, 13 Protrusion 14, 15 Concave groove 16, 17 Reinforcement rib 2 Band member 3 Existing pipe

Claims (1)

[Claims] 1. A long strip-shaped member having joints formed at both side edges in an existing pipe is supplied and spirally wound,
A lining tube material that forms a helical tube by joining the joining portions of adjacent belt-shaped members to form a lining tube,
A lining tube material, wherein a band member made of a fiber-reinforced thermosetting resin is attached to a main body of a band member made of a thermoplastic resin.