JPH11210117A - Joining structure of composite material, and joining method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately and strongly join the composite materials each other, when they are joined to each other, by stretchedly extending fiber bands along the respective composite materials. SOLUTION: Composite materials 1 each of which is made up of a heat- insulating panel 2 consisting of a resin foaming agent such as polystylene foam or polyurethane foam and surface members 3, 3 stretchedly extended on both surfaces thereof are joined to each other. In that case, a solidifying agent consisting of a joining agent or sealer is impregnated and resinated on the outside surfaces of these surface members 3, 3 and thereon fiber bands 10 in which continuous fibers such as aramid fibers, carbon fibers, glass fibers, and vinylon fibers are made into a band shape are stretchedly extended along the respective adjacent surface members 3, 3 so that the respective composite materials 1, 1 are joined to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite material structure for a housing outer wall or the like mainly by a two-by-four method or another general method, and more particularly to a composite structure for joining composite materials composed of a heat insulating panel and a face material. The present invention relates to a joining structure of materials and a joining method thereof.

[0002]

2. Description of the Related Art Conventionally, there are two-by-four construction methods, conventional construction methods, lightweight steel frame construction methods, wood panel construction methods, steel stud construction methods, and the like, as construction methods for general houses, stores and buildings. In these construction methods, the joint structure between the heat insulating materials of the composite structure (hereinafter, referred to as composite material) is
As shown in FIG. 9, one abutting portion of each composite material to be joined is provided with a concave portion forming one hollow facing each other, and one concave portion has one end of a joining reinforcing member for reinforcing the joining over each composite material. After applying an adhesive to the contact surface of the composite material, the composite materials are brought into contact with each other by fitting the other end of the joining reinforcing member to the corresponding concave portion, and the joining reinforcing member On the other hand, each composite material was joined by nailing from the outer surface of each face material.

[0003]

However, when joining composite materials using the joining structure, the concave portion is provided in advance on the contact surface of the composite material, and the joining reinforcing member is fitted into the concave portion. It is necessary to apply a glue, apply the adhesive, bring the composite materials into contact, and nail them from the outer surface of the face material. It has been desired to realize such a bonded structure. In addition, the size of the concave portion must be accurately adjusted to the size of the joining reinforcing member, and not only takes time and effort to cut out the concave portion, but if there is a difference in the size, there is a problem in the airtightness of the joining structure. There was a possibility that this would occur.

On the other hand, a structure using a joining reinforcing member as in the above joining structure is suitable for joining in which the end surfaces of the respective composite materials are brought into contact with each other, but as shown in FIG. It was unsuitable when a new composite material of the same shape was fitted and joined to the surroundings. Further, when joining each composite material at right angles to each other, conventionally, as shown in FIG. 10, a joining reinforcing member is fitted into each end of each composite material, and one composite material is inserted into the other composite material. Is mounted and nailed from the outer surface of the face material so as to penetrate the joining reinforcing member. In this case, too, it is desired to realize a joining structure that can easily join while increasing the joining strength.

On the other hand, when attaching a composite material to a building frame instead of composite materials, conventionally, a concave portion is provided at an end portion of the composite material as shown in FIG. 11, and an anchor bolt is passed through the concave portion. A reinforcing member is inserted, and the composite material is bolted to the main body with the anchor bolts, or as shown in FIG.
2, a metal plate is disposed so as to cover the end of the skeleton and the outer surface of the end of the face material, and is screwed or nailed so as to penetrate the metal plate and the joining reinforcing member. Was fixed to the frame, but also in this case, simplification in the work process while maintaining the joining strength was desired. Further, when an upwardly open concave portion is provided in the composite material and a beam member is fitted into the concave portion to support the beam member, an intensive load in a vertically downward direction is applied to a lower portion of the inner surface of the concave portion. Therefore, the composite material may be cracked, reduced, or buckled along the stress curve.

[0006] Therefore, the present invention is to carry out the construction work without impairing the sufficient strength by joining the composite materials by a fiber band composed of continuous fibers such as aramid fiber, carbon fiber, glass fiber and vinylon fiber. It is an object of the present invention to provide a joining structure of a composite material and a joining method thereof, which can be extremely simplified and enable various joinings regardless of the shape of the composite material to be joined.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a composite material comprising a heat insulating panel made of a resin foam such as expanded polystyrene or expanded polyurethane, and a face material adhered to both surfaces thereof. In a joint structure of a composite material in which materials are joined to each other, a continuous fiber such as an aramid fiber, a carbon fiber, a glass fiber, or a vinylon fiber is stretched by adhering a fiber band formed in a band shape to each of the adjacent face materials. It is characterized by joining composite materials.

The present invention according to claim 2 is the invention according to claim 1, wherein the face material of the composite material to which the fiber band is attached is impregnated with a solidifying agent such as an adhesive or a sealer. It is characterized in that

According to a third aspect of the present invention, in the first or the second aspect of the present invention, each of the end portions is provided between two opposing end portions of each face material of each of the composite materials to be joined. Attach a fixture that holds each face material so that the outer surface of each face material is flush with each other, and attaches the fiber band to the connector and the face material so as to cover the joint. The composite material is joined to each other.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the connecting member is formed of a thin metal plate, and the metal plate is bent into a predetermined shape so as to face each of the facing members. The composite material is joined so that the end portions are formed to be sandwiched back to back, and the outer surfaces of the face materials are flush with each other via the joining tool.

According to a fifth aspect of the present invention, there is provided a composite in which a composite material comprising a heat insulating panel made of a resin foam such as expanded polystyrene or polyurethane foam and face materials adhered to both surfaces thereof are joined. In the method of joining materials, each end of each of the face materials of the composite material to be joined is gripped between two opposing ends of each face material so that the outer surfaces of the face materials are flush with each other. Attach a connector to connect the materials, and cover the above-mentioned connector over the above each face material with a fiber band formed of a continuous fiber such as aramid fiber, carbon fiber, glass fiber, vinylon fiber, etc. It is characterized in that the composite materials are joined to each other by sticking.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the face material of the composite material to which the fiber band is attached is impregnated with a solidifying agent such as an adhesive or a sealer. And the above-mentioned connector is made of a thin metal plate,
It is formed so as to sandwich the end portions of the face materials facing each other in a predetermined shape in a back-to-back manner, and to join the composite materials together with the face material outer surfaces flush with each other via the joining tool. Features.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows the first embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a joint structure of an embodiment, FIG. 2 is a perspective view showing a joint structure of a second embodiment of the present invention, FIG. 3 is a cross-sectional view showing an L-shaped joint structure of a third embodiment of the present invention, FIG.
Is a sectional view showing a joint structure of a roof panel according to a fourth embodiment of the present invention, FIG. 5 is a sectional view showing a joint structure of a fifth embodiment of the present invention, and FIG. 6 is a joint structure of a sixth embodiment according to the present invention. 7a is an enlarged perspective view showing a connector according to the present invention, FIG. 7b is a cross-sectional view showing a joining process using the connector according to the present invention, and FIG. 7c is a joint structure using the connector according to the present invention FIG. 8 is a sectional view showing a joint structure according to a seventh embodiment of the present invention.

The composite material 1 to be joined by the joining structure and the joining method of the present invention comprises a heat insulating panel 2 and face materials 3 and 3 attached to both surfaces thereof. The heat insulating panel 2 is made of a resin foam such as expanded polystyrene or polyurethane, which is generally called EPS, or a glass wool plate. The expanded polystyrene constituting the heat insulating panel 2 is a lightweight material formed by foaming a bead-shaped foaming material in a mold, and is excellent in heat insulation, sound insulation, waterproofness, corrosion resistance, and workability. .

As the face material 3 (outer wall panel) to be attached to the heat insulating panel 2, a wood panel called OBS,
Other non-combustible boards such as wood panels, cement boards, asbestos boards, and calcium silicate boards are used. And
The composite material 1 has face materials 3 and 3 adhered to both sides of the heat insulating panel 2, and a method of attaching with an adhesive is generally used as the attaching method. The end faces of the composite materials 1 and 1 thus formed are brought into contact with each other, and a fiber band 10 is stuck over the corresponding face materials 3 and 3 at the abutting portion, and the composite materials 1 and 1 are attached. 1 are joined together.

The fiber band 10 is made of continuous fibers such as aramid fiber, carbon fiber, glass fiber and vinylon fiber. In the present specification, fibers such as aramid fibers, carbon fibers, glass fibers, and vinylon fibers are defined as continuous fibers. Among these continuous fibers, the aramid fiber is an aromatic polyamide fiber, which is a kind of nylon, and has extremely excellent strength and heat resistance. Aramid fibers have about 3 to 8 times the tensile strength of rebar. In this embodiment, the fiber band 10 was formed using aramid fiber. The fiber band 10 is attached to the outer surface of the face material 3 constituting the composite material 1, and a polyester resin or an epoxy resin can be used for the attachment to the face material 3. In order to obtain a higher tensile strength, an epoxy resin is preferable. In the present embodiment, a description will be given using the fiber band 10 in which the fiber direction is one direction. However, a fiber band in which the fiber direction crosses two directions of the vertical and horizontal directions may be used. Those having three or four directions of fiber directions may be used. With such a fiber structure, tensile strength and compressive strength can be increased.

First, a first embodiment will be described with reference to FIG. The present embodiment relates to a joining structure in which the composite materials 1 and 1 are joined so that their end faces face each other and come into contact with each other. Conventionally, as shown in FIG.
Concave portions 41, 41 are cut out and provided in advance on the contact surfaces of the composite materials 1, 1, and the joining reinforcing members 40, 40 are fitted into the concave portions 41, 41, and the contact of the composite materials 1, 1 is made. A large number of operations were required for the construction, such as applying an adhesive to the surfaces to bring the composite materials 1 and 1 into contact with each other and nailing the outer surfaces of the surface materials 3 and 3 to each other. FIG. 9 shows a structure in which the concave portions 41, 41 are provided in the vicinity of the respective positions of the face materials 3, 3, and the joining reinforcing members 40, 40 are respectively fitted thereto. There is also a structure in which one concave portion 41 having substantially the same width as the width of the panel 2 is provided, and one joining reinforcing member 40 is fitted and joined. In this case, too, a large number of operations are required in construction. On the other hand, the joining structure according to the present embodiment joins without using the joining reinforcing member 40 as in the prior art, and the end faces of the composite materials 1, 1 are brought into contact with each other to form the outer surfaces of the face materials 3, 3. Then, the fiber band 10 is attached to each of the face materials 3 and 3, and the composite materials 1 and 1 are joined. By bonding using the fiber band 10 in this manner, the concave portion 41 is formed.
, The number of detailed operations such as fitting the joining reinforcing member 40 is reduced, and more accurate and strong joining can be achieved.

When the fiber direction of the fiber band 10 coincides with the joining direction of each of the composite materials 1 and 1, that is, the tensile direction of the fiber band 10, the fiber direction coincides with the tensile direction at right angles. A stronger tensile strength can be obtained as compared with the case where no tension is applied. When a fiber band having a plurality of fiber directions is used as the fiber band 10, any one of the plurality of fiber directions may be the same as the tensile direction. At the time of attaching the fiber band 10 to the surface material 3, the surface material 3 is impregnated with a solidifying agent in advance to make the surface material 3 resinous. It can be prevented beforehand. In this case, a dilute adhesive, a sealer, or the like is preferable as the solidifying agent.

In joining the composite materials 1 and 1,
As shown in FIG. 7c, for each of the face materials 3, 3 of each of the composite materials 1, 1 to be joined, a joining tool 20 for holding each end between two opposite ends at the joining portion is attached. By doing so, the outer surfaces of the respective surface materials 3 and 3 may be flush with each other and the respective surface materials 3 and 3 may be connected. The connector 20 is shown in FIG.
As shown in the figure, the metal plate is formed of a thin metal plate, and the metal plate is bent into a predetermined shape so as to sandwich opposite ends of the face members 3, 3 back to back.

First, on a square metal plate having a thickness of about 0.2 to 0.3 mm and a side length of about 6 cm square, as shown in FIG. A total of four locations are placed at each location to form a strip that divides one side of the metal plate into three equal parts. As a result, both ends of the above-mentioned metal plate have a width of about 2c.
m are formed as six strips 21, 21. These strip pieces 21, 21 are alternately referred to as a mountain fold, a valley fold, and a mountain fold from the end. The thus-formed connector 20 is attached to the ends of the face materials 3 and 3 as shown in FIG. 7B, and the ends of the face materials 3 and 3 are held back to back. During this pinching,
The strip side 21 on one side of the strip pieces 21 is the face material 3.
The strip side 21 on the other side is pressed into the gap between the heat insulating panel 2 and the face material 3. Then, the fiber band 10 is joined to the joint 2 so as to cover the joint 20.
The composite materials 1 and 1 are joined to each other by being attached to the composite material 0 and the face material 3.

According to this embodiment, for example, a rectangular composite material 1 can be made longer by joining and integrating the composite materials 1 and 1 in the longitudinal direction. Further, for example, by making each of the composite materials 1 and 1 continuous in four directions, a wider composite material can be obtained.

Next, a second embodiment will be described with reference to FIG. The present embodiment relates to a joining structure in which a part which is a partially defective portion of the composite material 1 is arbitrarily cut out, and a composite material having the same shape is newly inserted and joined to the surroundings. In the present embodiment, the heat insulating panel 2 and the face material 3 constituting the composite material 1, the fiber band 10 to be stuck to the face material 3, the adhesive for attaching the fiber band 10, and the face material 3 are impregnated. All the solidifying agents are the same as in the first embodiment. First, a hollow portion 11 is formed by cutting out a part of the composite material 1. This hollow shape is optional, but is preferably square in consideration of the insertion of the new composite material 12 and the attachment of the fiber band 10. Then, a new composite material 12 having the same shape and the same size as the composite material 1 in the hollowed portion is fitted into the hollow portion 11, and the fiber band 10 is bonded along the tangential line around the new composite material 12 with an adhesive or the like. Put on. In the case where the hollow shape is rectangular as in this embodiment, four fiber bands 10 are to be adhered,
The fiber direction of the new composite material 12 is stuck so that the fiber direction coincides with the continuous direction of the fiber band 10 for each side of the new composite material 12,
A stronger tensile strength is obtained as in the first embodiment.

As described above, there is no need to use the conventional joining reinforcing member 40 for the composite material 1 to be joined, and it is possible to firmly attach the fiber band 10 to the outer surface of the face material 3 only by sticking it. Since joining can be performed, joining can be performed regardless of the shape of the composite material 1 to be joined. Therefore, the composite material 1 as in this embodiment is used.
The joining structure of the present invention can be used for any applications such as hollowing and fitting. Specifically, the composite material 1
If a defective part occurs in a part of the composite material, the defective part is cut out in a fixed size around its periphery, the new composite material 12 can be fitted and joined to the periphery, and the entire composite material 1 can be replaced. Can be partially repaired without having to do so.

Next, a third embodiment will be described with reference to FIG. The present embodiment relates to a joining structure in which the respective composite materials 1 are joined in an L shape so as to form a right angle with each other.
The heat insulating panel 2 and the face material 3 constituting the composite material 1 in the present embodiment, the fiber band 10 adhered to the face material 3, the fiber band 10
The adhesive used for bonding, the solidifying agent for impregnating the face material 3, and the direction in which the fiber band 10 is adhered are all the same as in the first embodiment. In the present embodiment, first, each composite material 1, 1
Are cut at an angle of 45 degrees, and when the cut ends are brought into contact with each other, they are formed at right angles to each other as shown in FIG. Then, the fiber bands 10 are stuck along the face materials 3 and 3 along the tangent line where the respective composite materials 1 and 1 are in contact with each other, and the respective composite materials 1 and 1 are joined. At this time, stronger fiber strength and compressive strength are obtained by matching the fiber direction of the fiber band 10 with the bonding direction across the face materials 3.

When joining each composite material 1 in an L-shape so as to form a right angle with each other, in a conventional joining structure, a joining reinforcing member 40 is fitted into an end of each composite material 1 as shown in FIG. However, according to the present embodiment, the L-shape is used without lowering the joining strength without using the joining reinforcing member 40 at the position of the joining reinforcing member 40. Can be joined to In addition, the contact surfaces of the respective composite materials 1 and 1 in the present embodiment are joined to the composite material 1 so as to be at an angle of 45 degrees. Further, since the structure is not such that one of the composite materials 1 is placed on the other composite material 1 and joined and fixed, the joined composite material 1 can stand alone in any direction and can be firmly mounted. It can be installed while maintaining proper bonding. Therefore, at the actual building construction site, the construction can be performed without regard to the installation direction of the joined composite material 1. Therefore, the above-mentioned joining can be performed in advance at the factory and the L-shaped corner panel can be carried to the construction site, thereby simplifying the construction work. You can do it.

Next, a fourth embodiment will be described with reference to FIG. The present embodiment relates to a joint structure for joining the composite materials 1 and 1 when the composite material 1 is used as a roof panel. The heat insulating panel 2 and the face material 3 constituting the composite material 1 in this embodiment, and the fiber band 1 stuck to the face material 3
0, an adhesive for bonding the fiber band 10, a solidifying agent for impregnating the face material 3, and a direction for attaching the fiber band 10 are all the same as those in the first embodiment. In the present embodiment, first, the ends of the respective composite materials 1 and 1 are cut obliquely at a predetermined angle, and the cut surfaces are brought into contact as shown in FIG. Then, the fiber bands 10 are stuck over the outer surfaces of the face materials 3 and 3 to join the composite materials 1 and 1 together. Then, at the joint between the composite materials 1, 1, the opening stopper 30 is press-fitted from above the fiber band 10 and attached. The opening stopper 30 includes a pair of upper and lower holding plates 3.
1a, 31b, a plurality of holding shaft portions 32, 32 and a nut 3
The upper and lower holding plates 31a and 31b are each formed of a long metal plate, and the length thereof is the same as the length of the tangent line of the composite materials 1 and 1 and the cross section thereof is The composite materials 1 and 1 form a mountain shape at the same angle as the joining angle. The holding shaft portions 32, 32 are composed of a plurality of bolts, and one ends thereof are respectively joined to the upper holding plate 31a at predetermined intervals.

Several shaft holes 34, 34 are provided from above the fiber band 10 along the tangent line of the composite materials 1, 1 at the same interval as that of the sandwiching shafts 32, 32. , 34
The upper holding plate 31a is placed on the upper portions of the composite materials 1 and 1 along the tangents of the composite materials 1 and 1 such that the holding shaft portions 32 and 32 are inserted through the upper and lower surfaces of the composite materials 1 and 1, respectively. The lower holding plate 31b
A shaft hole 3 through which the clamping shaft portions 32 are inserted.
5 and 35 are provided. The holding shaft portions 32 and 32 are inserted through the shaft holes 35 and 35 to lower the lower holding plate 31b along the tangent line of the composite materials 1 and 1 to the lower portion of the composite materials 1 and 1. Contact. Then, the nuts 33, 33 are connected to the respective holding shaft portions 32, 32.
The upper and lower holding plates 31a, 31
b, the composite materials 1 and 1 are sandwiched. As described above, the upper and lower holding plates 31a and 31b have a mountain-shaped cross section, and the angle of the mountain is equal to the joining angle of the composite materials 1 and 1, and the upper holding plate 3
The lower surface of 1a and the upper surface of the lower holding plate 31b are in contact with the respective surface materials 3, 3. Opening stopper 3
By means of 0, the composite materials 1 and 1 are sandwiched at the joints of the composite materials 1 and the joining angles formed by the composite materials 1 and 1 are kept constant. At the same time, peeling of the fiber band 10 can be prevented. According to this joint structure, it is possible to install the composite materials 1 and 1 in a building as a single mountain-shaped roof panel without joining beams while maintaining the strong joint.

Next, a fifth embodiment will be described with reference to FIG. The above-described joining structure can be used not only when the composite materials 1 and 1 are joined to each other, but also when the composite material 1 is attached to a skeleton 4 as a foundation of a building or the like. The heat insulating panel 2 and the face material 3 constituting the composite material 1 according to the present embodiment, the fiber band 10 stuck to the face material 3, an adhesive for bonding the fiber band 10, and the solidification for impregnating the face material 3 The direction in which the agent and the fiber band 10 are attached is the first direction.
This is the same as the embodiment. Conventionally, as shown in FIG. 11, a mounting reinforcing member 42 having one end of an anchor bolt 43 penetrated is fitted into a concave portion 44 provided at an end of the composite material 1, and the other end of the anchor bolt 43 is driven into the frame 4. The composite material 1 was vertically fixed and attached to the frame 4, and required many steps in construction. On the other hand, in this embodiment,
First, the composite material 1 is positioned with respect to the skeleton 4, and the fiber band 10 is stuck so as to extend between the face material 3 on the outdoor side of the composite material 1 and the skeleton 4. Similarly, the facing material 3 on the indoor side of the composite material 1
The fiber band 10 is stuck so as to extend between the fiber frame 10 and the frame 4. In this way, the mounting can be performed with fewer procedures without lowering the mounting strength without using the mounting reinforcing member 42 and the anchor bolt 43.

Next, a sixth embodiment will be described with reference to FIG. In the present embodiment, for example, the composite material 1 is attached to the upper and lower sides of the building 4 at the middle position between the floors of the building. The heat insulating panel 2 and the face material 3 constituting the composite material 1 according to the present embodiment, the fiber band 10 adhered to the face material 3, the adhesive for bonding the fiber band 10, the face material 3
The solidifying agent for impregnating the fiber band and the direction in which the fiber band 10 is stuck are all the same as in the first embodiment. Conventionally, as shown in FIG. 12, concave portions 44, 44 provided at the ends of the upper and lower composite materials 1, 1 respectively.
After the mounting reinforcing members 42, 42 are fitted into the mounting members, a mounting reinforcing plate 45 is arranged over the respective face members 3, 3 outside the composite materials 1, 1 and the frame 4 and nailed or screwed from above. Was fixed. On the other hand, in the present embodiment, first, each of the composite materials 1 and 1 is positioned with respect to the skeleton 4, and the composite materials 1 and 1 are positioned.
The fiber band 10 is stuck so as to extend over each of the face materials 3 and 3 outside the frame 1 and the frame 4. Similarly, the fiber bands 10 and 10 are stuck so as to extend between the face materials 3 and 3 and the frame 4 inside the composite materials 1 and 1 respectively. Even without using the mounting reinforcing member 42 and the mounting reinforcing plate 45, the mounting can be performed in a smaller number of steps without lowering the mounting strength. In addition,
Finally, the attachment strength may be further increased by nailing or screwing the frame 4 from above the fiber band 10.

Next, a seventh embodiment will be described with reference to FIG. The present embodiment relates to a structure used not to directly use the fiber band 10 for the bonding itself but to disperse a concentrated load locally at the time of the bonding and thus to reinforce the bonding. . That is, at the joint between the composite material 1 and the beam 5, a fitting portion 46 to which the beam 5 is fitted is provided in the composite 1, and the beam 5 is fitted to the fitting portion 46. When this is supported, the concentrated load applied to the bottom of the inner surface of the fitting portion 46 is dispersed, and the joining between the composite material 1 and the beam material 5 is reinforced as a result. conventionally,
When the beam member 5 is fitted and supported in the fitting portion 46 of the composite material 1, a reinforcing material is attached to each of three contact surfaces of the fitting portion 46, which is the composite material 1, to form a composite material. Buckling of material 1 was prevented. In this embodiment, the buckling of the composite material 1 is prevented by using the fiber band 10 without using the reinforcing material. First, as shown in FIG. 8B, the beam 5 is attached to the end of the beam 5 and the face material 3 such that the end of the beam 5 is flush with the surface of the face material 3 of the composite material 1. . On the side corresponding thereto, as shown in FIGS.
Then, a notch is made in 0, and the sheet material is folded and attached to the beam material 5 and the face material 3. Thereby, the load applied to the inner surface of the fitting portion 46 can be dispersed over a wide range. Further, if the fiber band 10 is adhered in multiple layers, the proof strength is increased accordingly.

[0031]

As described above, according to the present invention, by using a fiber band formed of continuous fibers such as aramid fiber, carbon fiber, glass fiber, and vinylon fiber,
There is an effect that the composite materials can be joined with a very simple structure by a smaller number of procedures. In addition, the bonding by the fiber band is superior to the bonding by the conventional bonding reinforcing member in terms of strength, and has an effect that a reliable and strong bonding is realized. Further, since the fiber band is made of thin continuous fibers, there is an effect that irregularities on the surface of the composite material can be minimized and bonding can be performed more firmly than using a metal plate or the like.

In the joint structure using the above-mentioned fiber band, it is not necessary to use a joint reinforcing member at a contact portion between the composite materials. Therefore, when the composite materials are joined in an L-shape as described above. Joining in which the composite materials are cut at 45 degrees to each other and come into contact with each other can be performed. The L-shaped composite material joined and integrated in this manner has higher joining strength than conventional joining and can be self-supported, and can be installed in any direction. There is an effect that joining can be performed without considering the direction. Therefore, it can be joined in advance as an L-shaped corner panel in a factory, and there is an effect that the number of man-hours at the construction site can be reduced.

Further, the face material of the composite material to which the fiber band is attached is impregnated with a solidifying agent such as an adhesive or a sealer to be resinified. There is an effect that the surface peeling of the material can be prevented beforehand, and the joining strength can be increased.

A thin metal plate is bent in a predetermined shape between two opposing ends of the face material of each composite material to be joined, each end of which is sandwiched back to back. Since the components are attached, and the fiber band is attached to the connector and the face material so as to cover the connector, the composite material is joined to each other, so that the outer surfaces of the face materials are flush. Thus, there is an effect that each face material can be connected. In addition, since the joining tool is formed of a thin metal plate, there is an effect that the unevenness of the joining tool can be minimized on the surface of the composite material to make the joining tool even.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a joint structure according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a joint structure according to a second embodiment of the present invention.

FIG. 3 is a sectional view showing an L-shaped joint structure according to a third embodiment of the present invention.

FIG. 4 is a sectional view showing a joint structure of a roof panel according to a fourth embodiment of the present invention.

FIG. 5 is a sectional view showing a joint structure according to a fifth embodiment of the present invention.

FIG. 6 is a sectional view showing a joint structure according to a sixth embodiment of the present invention.

FIG. 7A is an enlarged perspective view showing a connector according to the present invention, FIG. 7B is a cross-sectional view showing a joining process using the connector according to the present invention, and FIG. It is sectional drawing which shows the joining structure using a tool.

FIG. 8A is a front view showing a joint structure according to a seventh embodiment of the present invention, and FIG. 8B is a side sectional view showing the joint structure according to the seventh embodiment of the present invention.

FIG. 9 is a sectional view showing a conventional joining structure corresponding to the first embodiment of the present invention.

FIG. 10 is a sectional view showing a conventional bonding structure corresponding to a third embodiment of the present invention.

FIG. 11 is a sectional view showing a conventional bonding structure corresponding to a fifth embodiment of the present invention.

FIG. 12 is a sectional view showing a conventional joining structure corresponding to a sixth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Composite material 2 Heat insulation panel 3 Face material 4 Frame 5 Beam 10 Fiber band 11 Hollow part 12 New composite material 20 Joiner 21 Strip piece 30 Opening stopper 31a Upper holding plate 31b Lower holding plate 32 Holding shaft part 33 Nut 34 Shaft Hole 35 Shaft hole 40 Joint reinforcing member 41 Depression 42 Mounting reinforcement member 43 Anchor bolt 44 Depression 45 Mounting reinforcement plate 46 Fitting portion

Claims (6)

[Claims] An aramid fiber or a composite material for joining a composite material comprising a heat insulating panel made of a resin foam such as expanded polystyrene or polyurethane foam and a face material adhered to both surfaces thereof. Bonding composite materials by bonding fiber bands formed of continuous fibers such as carbon fibers, glass fibers, and vinylon fibers over the above-mentioned adjacent face materials to bond the composite materials to each other. Construction. 2. The composite joining structure according to claim 1, wherein a face material of said composite material to which said fiber band is attached is impregnated with a solidifying agent such as an adhesive or a sealer to be resinified. . 3. Each face material is gripped between two opposing ends of each face material of each composite material to be joined so that the outer surface of each face material is flush. 3. The composite material according to claim 1, wherein the composite material is joined to each other by attaching a joining device for connecting the fibers and attaching the fiber band to the joining device and the face material so as to cover the joining device. Composite material joining structure. 4. The joining device is made of a thin metal plate,
The metal plate is bent into a predetermined shape so as to sandwich the end portions of the face members facing each other in a back-to-back manner, and the outer faces of the face materials are flush with each other via the joining tool to join the composite materials together. The joining structure for a composite material according to claim 3, wherein the joining is performed. 5. A composite material joining method for joining composite materials composed of a heat insulating panel made of a resin foam or the like such as expanded polystyrene or expanded polyurethane and face materials adhered to both surfaces thereof. Attach a joint between each of the facing two ends of each of the composite materials to grip each of the ends and connect the respective surface materials so that the outer surfaces of the respective surface materials are flush with each other. The composite material is bonded to each other by attaching a fiber band formed of continuous fibers such as aramid fiber, carbon fiber, glass fiber, and vinylon fiber so as to cover the joining tool over the adjacent face materials. A method for joining composite materials, comprising joining. 6. The composite material to which the fiber band is attached is impregnated with a solidifying agent such as an adhesive or a sealer to be resinified, and the joining tool is formed into a predetermined shape by a thin metal plate. The composite material is joined to each other by forming the end portions of the face materials facing each other so as to be sandwiched in a back-to-back manner, and making the outer surfaces of the face materials face-to-face through the joint. Item 6. The method for joining composite materials according to Item 5.