JP3036360U - Lifting prevention device for reinforced fiber sheet upholstery - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To prevent floating of a reinforced fiber sheet and to exert a reinforcing effect on the original frame of fiber reinforced plastic. SOLUTION: A thermosetting resin is applied to and impregnated into a reinforcing fiber sheet attached to the surface of a skeleton, and then an air mat is wrapped around the thermosetting resin through a peeling member having low compatibility with the thermosetting resin. Air is pressed into the air mat to inflate it, or a flexible adhesive member is wrapped around the reinforced fiber sheet via a release member that has low compatibility with the thermosetting resin, and the adhesive member is pressed and pressed. By pressing the reinforced fiber sheet with a predetermined pressing force to the skeleton with the stopper metal, the reinforced fiber sheet is pressed against the skeleton until the thermosetting resin is cured, whereby the reinforced fiber sheet floats before the thermosetting resin is cured. And prevent the reinforced fiber sheet upholstery from rising.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a device for preventing floating of a reinforced fiber sheet upholstery used when a reinforced fiber sheet such as carbon fiber or aramid fiber is attached to the surface of a body for reinforcement.

[0002]

[Prior art]

 Recently, for example, when reinforcing the skeleton of concrete structures such as main wings and tails of aircraft, bridge piers, and beams and columns of buildings, etc., reinforcing fiber sheets such as carbon fiber and aramid fiber are used as reinforcement materials. It is used.

The reinforcement of the skeleton by the above-mentioned reinforcing fiber sheet is carried out by applying an adhesive having high compatibility with a thermosetting resin, mainly an epoxy resin, to the surface of the skeleton by an appropriate application means such as a roller, a brush or a spray, and then applying the adhesive. The reinforcing fiber sheet is attached to the above with a hand roller or the like, and then the epoxy resin is applied to the reinforcing fiber sheet with an appropriate applying means such as a roller, a brush or spraying to impregnate it, and then left as it is for about a whole day. The epoxy resin is then cured and the reinforced fiber sheet is made into fiber reinforced plastic to reinforce the frame.

[0004]

[Problems to be solved by the device]

 By the way, when reinforcing the body with a reinforcing fiber sheet, the reinforcing fiber sheet is attached to the surface of the body.However, the reinforcing fiber sheet has a property of stretching without sagging, that is, so-called bracing, and the unevenness of the body surface or near corners There was a drawback that it was easy to get up. Therefore, as before, when the epoxy resin is cured by impregnating the reinforcing fiber sheet attached to the body surface with the epoxy resin and leaving it as it is, the epoxy resin is initially cured before the epoxy resin is cured. The reinforcing fiber sheet that was in close contact with the part partially floats due to its own property (stretching). Therefore, the adhesive strength between the fiber-reinforced plastic obtained by curing the epoxy resin impregnated in the reinforced fiber sheet and the skeleton is lowered, and the original reinforced effect on the skeleton of the fiber-reinforced plastic is significantly reduced.

Therefore, an object of the present invention is to prevent the reinforcing fiber sheet from floating and to exert a reinforcing effect on the original frame of the fiber-reinforced plastic.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention applies a thermosetting resin to a reinforcing fiber sheet attached to the surface of a body to impregnate the sheet with a thermosetting resin, and then peels the layer with low compatibility with the thermosetting resin. Reinforcement fiber equipped with an air mat wrapped around a member and having an air nozzle with a check valve for pressurizing air into the inside, and a metal stopper that wraps around the body and stops both ends of the air mat by polymerizing Provide a seat lifting prevention device.

In addition, according to the present invention, a thermosetting resin is applied to a reinforcing fiber sheet attached to the surface of a body to impregnate it, and then a peeling member having a low compatibility with the thermosetting resin is interposed therebetween. A flexible adherent member to be attached, a pressing member arranged on the adherent member, and a presser fitting for pressing the presser member with a predetermined pressing force to press the adherent member against the body while pressing it. And a lifting prevention device for a reinforced fiber sheet.

According to the present invention, a reinforcing fiber sheet attached to the surface of a body is coated with a thermosetting resin to impregnate it, and then the air mat is wrapped around the impregnated fiber sheet, and air is pressed into the air mat. Or swell or wrap the adhesive material on the reinforced fiber sheet and press the adhesive material with the holding member and the holding metal fittings until the thermosetting resin cures the reinforced fiber sheet. It is possible to prevent the reinforced fiber sheet from floating before the thermosetting resin is cured, and to prevent the reinforced fiber sheet upholstery from floating.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

FIG. 1 shows an embodiment of the first invention, in which 1 is a skeleton, for example, a main wing or a tail of an aircraft, and 2 is a highly compatible adhesive with a thermosetting resin, mainly an epoxy resin, on the surface of the skeleton 1. Carbon fiber impregnated with an epoxy resin applied after the application, a reinforcing fiber sheet such as aramid fiber, 3 is a release member having extremely low compatibility with the epoxy resin coated on the reinforcing fiber sheet 2, For example, a vinyl sheet, a silicone film or the like, 4 is wrapped around the peeling member 3, and an air mat having a check valve-equipped air nozzle 5 for pressurizing air to the inside is partially provided, and 6 is wrapped around the body 1. It is a metal fitting for stopping both ends of the amat 4 by superposing them, for example, a shrimp vise.

Next, a description will be given of how to prevent the reinforcing fiber sheet upholstery from floating according to this embodiment.

An epoxy resin adhesive is applied to the surface of the skeleton 1 by an appropriate application means such as a roller, a brush or a spray, and the reinforcing fiber sheet 2 is attached thereto by a hand roller or the like, and then the reinforcing fiber sheet 2 Epoxy resin is applied to and impregnated with an appropriate applying means such as a roller, a brush, and spraying, and then an air mat 4 is wound around it via a peeling member 3, and both ends of the air mat 4 are polymerized and stopped. The air mat 4 is attached to the body 1 by stopping with the metal fitting 6. After that, air is injected into the air mat from the air nozzle 5 with a check valve to inflate it, and the reinforcing fiber sheet 2 is pressed with an appropriate pressure by the air pressure of the air mat 4. As a result, the reinforcing fiber sheet 2 can be pressed against the surface of the skeleton 1 to be in close contact therewith, and wrinkles of the reinforcing fiber sheet 4 can be extended. After that, the epoxy resin is cured by leaving it as it is for about one full day, and the reinforcing fiber sheet 2 is made into a fiber-reinforced plastic, as in the conventional case.

As described above, after the epoxy resin is applied and impregnated on the reinforcing fiber sheet 2 attached to the body 1, an appropriate pressurizing force (pressing into the inside of the air mat 4 is performed until the reinforcing fiber sheet 2 is cured by the epoxy resin. It is possible to prevent the reinforcing fiber sheet 2 from floating before the epoxy resin is hardened by pressing it against the surface of the skeleton 1 by the pressure of the air), and to prevent the reinforcing fiber sheet upholstery from rising. .

FIG. 2 shows an embodiment of the second invention, in which 11 is a skeleton, for example, a bridge pier of a bridge, or a concrete structure such as a beam or a pillar of a building, and 12 is a heat on the surface of the skeleton 11. A reinforcing fiber sheet such as a carbon fiber or an aramid fiber, which is adhered with a curable resin, mainly an adhesive having high compatibility with an epoxy resin, and impregnated with the epoxy resin applied after the adhesion, 13 is coated on the reinforcing fiber sheet 12 A peeling member having extremely low compatibility with the epoxy resin, such as a vinyl sheet or a silicone film, 14 is a flexible adhesive member wound around the peeling member 13, such as rubber or foam having excellent flexibility, or air inside. , Such as an air mat that is inflated by encapsulating, 15, 15 ... Two sets of a total of four arranged on the contact member 14 with the body 11 sandwiched therebetween. A pressing member, for example, a pressing plate having rigidity, 16 and 16 are pressing metal fittings, such as a turnbuckle type supporter, which press the pressing members 15 and 15 with a predetermined pressing force to press the contact member 14 against the body 11. And wires.

Next, a description will be given of how to prevent the reinforcing fiber sheet upholstery from floating according to this embodiment.

An epoxy resin adhesive is applied to the surface of the skeleton 11 by an appropriate applying means such as a roller, a brush or a spray, and a reinforcing fiber sheet 12 is stuck thereon by a hand roller or the like. The sheet 12 is coated with an epoxy resin by a suitable coating means such as a roller, a brush, or sprayed to impregnate the sheet 12 with the epoxy resin. , 15 are arranged so as to face each other with the body 11 sandwiched therebetween, and the holding members 15, 15 are pressed by the holding metal fittings 16 and 16 with a predetermined holding force to stop the contact member 14 while holding the contact member 14 on the body 11. As a result, the reinforcing fiber sheet 12 can be pressed against the surface of the skeleton 11 and brought into close contact therewith. After that, in the same manner as in the conventional method, the epoxy resin is allowed to stand for about one full day to cure, and the reinforcing fiber sheet 12 is made into a fiber-reinforced plastic.

After the epoxy resin is applied to the reinforcing fiber sheet 12 to impregnate the reinforcing fiber sheet 12 in this way, the reinforcing fiber sheet 12 is adhered to the reinforcing member 14, the pressing member 15 and the pressing metal fitting 16 until the epoxy resin is cured. By pressing against the surface of 11, the reinforcing fiber sheet 12 can be prevented from floating before the epoxy resin is cured, and the floating of the reinforcing fiber sheet tension can be prevented.

[0018]

[Effect of the invention]

 As described above, according to the present invention, after the thermosetting resin is applied to and impregnated into the reinforcing fiber sheet attached to the surface of the body, the reinforcing fiber sheet is formed until the thermosetting resin is hardened. By pressing it, it is possible to prevent the reinforcing fiber sheet from rising before the thermosetting resin is cured, and to prevent the reinforcing fiber sheet upholstery from rising. Therefore, it is possible to increase the adhesive strength between the fiber-reinforced plastic obtained by curing the thermosetting resin impregnated in the reinforced fiber sheet and the skeleton, and to exert the original strength of the fiber-reinforced plastic for reinforced the skeleton. It was

[Brief description of the drawings]

FIG. 1 is a sectional view of an essential part showing an embodiment of the first invention.

FIG. 2 is a sectional view of an essential part showing an embodiment of a second invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Reinforced fiber sheet 3 Peeling member 4 Air mat 5 Air nozzle with a check valve 6 Stopper 11 Frame 12 Reinforced fiber sheet 13 Peeling member 14 Adhesive member 15 Pressing member 16 Pressing stopper

Claims (2)

[Utility model registration claims] 1. A thermosetting resin is applied to and impregnated into a reinforced fiber sheet attached to the surface of a body, and then the reinforced fiber sheet is wrapped around the thermosetting resin via a peeling member having a low compatibility with the thermosetting resin. An air mat having an air nozzle with a check valve for pressurizing air into the inside of the portion, and a metal fitting wound around the body to superpose and stop both ends of the air mat, and a reinforced fiber sheet upholstery product. Lift prevention device. 2. A flexible adhesion that is applied by impregnating a reinforcing fiber sheet attached to the surface of the body with a thermosetting resin and impregnating the reinforcing fiber sheet with a peeling member having low compatibility with the thermosetting resin. A member, a pressing member disposed on the close contact member, and a holding metal fitting that presses the pressing member with a predetermined pressing force to hold the close member while pressing the close member against the body. Lifting prevention device for reinforced fiber sheet upholstery.