Composite with hollow section

Abstract

To provide a composite body having a hollow part which enables installation and reinforcement without removal and movement of a wiring even when an existing electric wiring and cable are installed in the hollow part, in a reinforcement method for filling a hollow part of a hollow columnar object with a flowable hardener.SOLUTION: In a composite body having a hollow part, a cylindrical shape of a fiber sheet is formed, mirror cloths for sealing a flowable hardener are provided on both ends of the cylindrical shape, and a bellows-like pipe having a hollow structure is arranged to pass through a cylindrical hollow part and communicate with the mirror cloths on both ends, which enables installation by passing a wiring through the bellows-like pipe without removal and movement of an existing wiring.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The invention disclosed herein relates to a composite body having a hollow portion. [Background technology]

[0002] In reinforcement methods such as filling the hollow space of an existing hollow columnar object with a flowable hardening material, if there are existing electrical wiring or cables attached to the hollow space, these wiring etc. will be buried in the flowable hardening material and some kind of treatment will be required.

[0003] When wiring or the like is buried in the flowable hardening material using these reinforcing methods, it becomes impossible to reroute or replace the wiring after the flowable hardening material has hardened.

[0004] In the case of a reinforcement method in which a sealed cylindrical reinforcing material is inserted into a hollow column and then a fluid hardening material is injected, if the construction is carried out without removing or relocating wiring, etc., the wiring may become caught between the inner surface of the hollow column and the reinforcing material, creating gaps or unreinforced areas, thereby reducing the strength.

[0005] Patent Document 1 discloses a reinforcement method in which a fluid hardening material is injected into a cylindrical fiber reinforced sheet with the top and bottom ends sealed, but if there are wiring or other items present, the wiring will get caught between the reinforcement sheet and the surface to be reinforced, so the work cannot be carried out unless it is removed or relocated.

[0006] Patent Document 2 discloses a reinforcement method in which a fluid solidifying material is injected into the inside of a cylindrical reinforcing material, but since the top and bottom ends of the cylinder are not sealed, if there are existing wiring etc., the wiring will be buried in the fluid hardening material and will need to be removed or relocated before construction can be carried out. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Patent Publication No. 2021-004546 [Patent Document 2] Patent Publication No. 2019-190014 Summary of the Invention [Problem to be solved by the invention]

[0008] In view of the above background, the present invention proposes a composite body having a hollow portion that can be easily used, which is thought to expand the range of reinforcement targets since reinforcement can be performed without removing or relocating existing wiring. [Means for solving the problem]

[0009] The composite having a hollow portion according to the present invention is formed into a cylindrical shape from a fiber sheet, and both ends of the cylinder are provided with a mirror cloth that seals the fluid hardener. A hollow bellows-shaped tube passes through the hollow portion of the cylinder, connecting the mirror cloths at both ends, so that wiring can be passed through the bellows-shaped tube and installed without removing or moving the existing wiring.

[0010] The composite having a hollow portion according to the present invention is provided with an injection hose for filling the fluid hardener into the cylindrical shape, and the injection hose can be provided on either one side of the mirror cloth or at a free position on the reinforcing material, or both.

[0011] The composite body having a hollow portion according to the present invention can be attached by fixing the reinforcing material to the construction surface by the pressing force generated by injecting a fluid hardening material into a cylindrical body sealed with a mirror cloth.

[0012] In the composite body having a hollow portion according to the present invention, the rust inhibitor can be applied to the outer peripheral surface of the reinforcing material, so there is no need to apply it to the surface to be reinforced. [Effects of the Invention]

[0013] Filler is injected into the cylindrical fiber sheet to fix the reinforcing material to the surface to which it is to be attached, and reinforcement can be achieved without removing or moving existing wiring.In addition, since an anti-rust agent can be applied to the outer surface of the reinforcing material, there is no need to apply it to the surface to be reinforced, so it can be easily used for attachment to and reinforcement of structures. [Brief explanation of the drawings]

[0014] [Figure 1] 1A is a longitudinal cross-sectional view of a composite having a hollow portion according to an embodiment, and FIG. 1B is a horizontal cross-sectional view of the composite having a hollow portion according to an embodiment. [Figure 2] 1 is a detailed cross-sectional view of a communicating portion of a composite body having a hollow portion according to an embodiment. [Figure 3] 1 is a diagram showing a bending of an injection hose of a composite having a hollow portion according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0015] An embodiment of a composite having a hollow portion according to the present invention is shown in Fig. 1 in a longitudinal cross-sectional view (A) and a horizontal cross-sectional view (B), and Fig. 2 shows details of the communication portion between the head cloth 2 and the hollow bellows tube 4. Fig. 3 shows a diagram of the injection hose being bent.

[0016] In this embodiment of the present invention, the reinforcing material 1 of the composite having a hollow portion in Fig. 1 is a sheet-like woven fabric formed into a cylindrical shape from a fiber sheet with a high Young's modulus, and the facing fabric 2 is formed from a fiber sheet, plastic sheet, nonwoven fabric, or mesh sheet that has an elongation equal to or greater than that of the fabric used in the reinforcing material 1, and the joint with the reinforcing material 1 is provided with a glue tab and sealed into a cylindrical shape. The glue tab is joined to the reinforcing material 1 by adhesive or sewing, or both.

[0017] Figure 2 shows the details of the connection between the bellows cloth 2 and the hollow bellows tube 4. The hollow bellows tube 4 passes through the hollow part of the cylindrical reinforcing material 1, connecting the bellows cloth 2 at both ends, and the bellows cloth 2 is connected to the bellows tube 4 all around with a plastic belt, metal belt, adhesive, or both, with one layer of the bellows cloth 2 engaged with engagement 1 and the two folded layers engaged with engagement 2, sealing the bellows tube 4.

[0018] 1, a fluid hardener 7 is injected into the reinforcing material 1, and injection hoses 5(a) and 5(b) are provided for this purpose. The injection hoses are made of flexible vinyl, plastic, or metal pipes that are joined or fastened to the reinforcing material 1 and the mirror cloth 2 by gluing, sewing, or screws, or both.

[0019] The injection hoses 5(a) and 5(b) in FIG. 3 can be bent and engaged 3 to seal off the backflow of the fluid hardening material.

[0020] The reinforcing material 1 can be fixed and attached to the target surface of the hollow columnar object P without bending by the pressing force generated by injecting a fluid hardening material 7 into the cylindrical reinforcing material 1 sealed with the mirror cloth 2 in Figure 1(A).

[0021] The outer surface of the reinforcing material 1 in FIG. 1(A) is coated with a rust inhibitor. 6 The surface of the hollow pillar P is covered with the rust inhibitor without any spots. 6 can be applied.

[0022] Rust inhibitor 6 contains amine-based carboxylic acid, epoxy, zinc, aluminum phosphate, or a mixture of these.

[0023] [Configuration 1] The reinforcing material is cylindrical, and a bellows tube is provided at both ends of the cylindrical shape, passing through the hollow portion of the cylindrical shape and communicating with the bellows tube at both ends. The injection hose is a composite having a hollow portion that is connected to the reinforcing material and the bellows tube. . [Configuration 2] 2. The composite having a hollow portion according to claim 1, wherein the reinforcing material is formed by shaping a fiber sheet having a high Young's modulus into a cylindrical shape. . [Configuration 3] 2. The composite having a hollow portion according to claim 1, wherein the fabric is formed of a fiber sheet, a plastic sheet, a nonwoven fabric, or a woven mesh sheet that has elongation equal to or greater than that of the fabric used in the reinforcing material. . [Configuration 4] 2. The composite body having a hollow portion according to claim 1, wherein the head cloth is joined to the reinforcing material by adhesive bonding or sewing, or both, to form a cylindrical shape and sealed. . [Configuration 5] 2. The composite body having a hollow portion according to claim 1, wherein the head cloth is engaged and sealed with the first layer and the folded second layer of the head cloth by a plastic belt, a metal belt, an adhesive or both around the entire circumference of the hollow bellows tube. . [Configuration 6] 2. The composite body having a hollow portion according to claim 1, wherein the injection hose is a flexible vinyl pipe, plastic pipe, or metal pipe joined or connected to the reinforcing material and the mirror cloth by adhesive, sewing, screws, or both. . [Configuration 7] 2. The composite body having a hollow portion according to claim 1, wherein the injection hose can be bent and engaged to seal off the backflow of the fluid hardening material. . [Configuration 8] 2. The composite body having a hollow portion according to claim 1, wherein a layer of a rust inhibitor can be formed on the outer peripheral surface of the reinforcing material. . [Explanation of symbols] 1 Reinforcement 2 mirror cloth 3 Engagement part 3(a) Engagement 1 3(b) Engagement 2 4. Hollow bellows tube 5(a) Injection hose 1 5(b) Injection hose 2 6. Rust inhibitor 7 Fluid hardening material 8 Engagement 3 P hollow columnar object

Claims

1. a cylindrical reinforcing member; a mirror cloth provided on both ends of the cylindrical reinforcing material; a hollow bellows tube that passes through the hollow portion of the cylindrical reinforcing material and communicates with the end cloths; an injection hose engaged with at least one of the reinforcing material and the mirror cloth for filling the inside of the cylindrical reinforcing material with a fluid hardening material; A composite body having a hollow portion, comprising:

2. 2. The composite body having a hollow portion according to claim 1, wherein the reinforcing material is formed from a tubular fiber sheet having a high Young's modulus.

3. A composite having a hollow portion as described in claim 1, wherein the mirror cloth is formed from a fiber sheet, a plastic sheet, a nonwoven fabric, or a mesh sheet that has an elongation equal to or greater than that of the fabric used in the reinforcing material.

4. A composite having a hollow portion as described in claim 1, wherein the mirror cloth is joined and sealed to the reinforcing material by providing a glue tab on the reinforcing material and then bonding or sewing the reinforcing material into a cylindrical shape using an adhesive, or by both methods.

5. 2. A composite having a hollow portion according to claim 1, wherein the mirror cloth is engaged and sealed to the hollow bellows tube around the entire circumference of the hollow bellows tube by a plastic belt or a metal belt, or an adhesive, or both.

6. A composite having a hollow portion as described in claim 1, wherein the injection hose is made of a flexible vinyl pipe, plastic pipe, or metal pipe and is joined or engaged to at least one of the reinforcement material and the mirror cloth by gluing, sewing, screws, or both.

7. 2. The composite body having a hollow portion according to claim 1, wherein the outer peripheral surface of the reinforcing material is provided with a layer of a rust inhibitor.

8. A method for reinforcing a hollow columnar object, comprising: a step of arranging wiring in a hollow columnar object inside the hollow corrugated tube of the composite having a hollow portion according to claim 1; a step of inserting a composite having a hollow portion in which a wiring is arranged into the hollow portion of the hollow columnar object; a step of injecting a fluid hardener into the reinforcing material inserted into the hollow portion through the injection hose; and a step of bending the injection hose and engaging the base portion of the injection hose with the bent portion, thereby sealing off backflow of the fluid hardening material injected into the inside of the reinforcing material; A reinforcement method comprising:

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