JP2585118Y2 - Jointed building materials - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a joint type building material. The purpose of the present invention is to make it possible to connect a building material such as a wooden board or a decorative material to an adherend in a short time by high-frequency induction heating, and to continuously bond the material. Another object of the present invention is to provide a joint type building material that is extremely excellent in workability, such as being able to shift to the next step, and being able to freely perform displacement during positioning.

[0002]

2. Description of the Related Art Hitherto, as a method of joining building materials such as plywood and decorative materials, a method using joining parts such as nails, dowels, bolts, rivets, and the like has been used for a long time.
This joining method is performed by driving nails or dowels into an arbitrary place such as plywood. The work is relatively simple, but stress is concentrated at one point because of point joining. However, when a plurality of components are driven over a wide area in order to disperse the stress, there is a problem that the operation becomes complicated. In addition, in such a method, there is a problem that projections and build-up appear at joints, and the smoothness of the surface is lost, and the appearance is impaired, and rationalization, labor saving, shortening of construction period, etc. accompanying the modernization of the building industry. It was not always a satisfactory method for the various requirements. Therefore, a joining method using a liquid organic polymer-based adhesive has been gradually adopted instead of an old joining method using a nail or the like. As a liquid adhesive used for building materials, use a rubber-based adhesive such as chloroprene rubber or natural rubber, or a copolymer emulsion resin such as vinyl acetate, acrylic, or ethylene, or a two-part epoxy resin. Adhesives and the like, such an adhesive,
It was a method in which the composition was applied to an arbitrary portion of an adherend, cured, and then joined. In this bonding method using a liquid adhesive, since surface bonding is performed, the stress is uniformly distributed over the entire bonding portion, durability is improved, and the surface of the bonding portion can be finished smoothly, so that aesthetic appearance can be achieved. Was also preferably adopted.

However, in the above-mentioned joining method using a liquid adhesive, a certain period of time is required until the adhesive is applied and then hardened to develop an adhesive force. There was a problem that it was necessary. In other words, until the adhesive is cured, it must be cured for a predetermined period using temporary nails, support trees, etc., and when working in large quantities, continuous joining work cannot be performed. There were challenges. In addition, in the case of an emulsion-based resin adhesive, when the temperature is high and the humidity is high in the summer, the viscosity and film forming performance fluctuate, and the drying speed tends to be slow. There are also problems such as adhesion of the adhesive or the surface being sticky, which makes handling difficult, and furthermore, adhesion failure due to pre-curing of the adhesive film easily occurs. In addition, in the case of a two-part epoxy resin or the like, it is necessary to mix it with an optional curing agent each time it is used, and after mixing with the curing agent, a curing reaction occurs immediately if not used promptly. There were issues such as the need to be careful in handling. Furthermore, since all of these adhesives are liquid, they are often irritating or toxic and require careful handling. In addition, at the building assembly site, the adhesive is generally uniformly and appropriately applied to the adherend. It is considered difficult to apply such an adhesive, and there are also problems such as poor adhesion due to uneven application and the like, making it difficult to obtain reliable adhesion. Therefore, as a method for improving various problems with such a liquid adhesive, a bonding method using a double-sided tape using a pressure-sensitive adhesive has come to be adopted.

[0004]

However, in the joining method using the double-sided tape described above, since the adhesiveness is developed simultaneously with the application of the double-sided tape, the joined building material is shifted from a desired position. It becomes difficult to correct when
There was a problem that it was not possible to immediately move to the target position. Further, the surface of plywood or the like used as a building material is usually rough, so that when a double-sided tape is applied, a sufficient contact area with the adhesive surface cannot be secured, and the stress due to the weight of the material cannot be secured. And the temperature after bonding,
There was also a problem that the applied double-sided tape was easily peeled off with time due to stress generated by expansion and contraction or warpage of building materials due to climate change such as humidity. On the other hand, if the adhesive area of the double-sided tape is sufficiently secured and the adhesive used for the double-sided tape is softened, the adhesive area increases, but on the other hand, the adhesive flows due to the creep phenomenon due to the stress caused by the building material. As a result, there were problems such as peeling of the double-sided tape. Therefore, even in the joining method using a double-sided tape, there is a problem that it is difficult to obtain a long-term joining force with high reliability.

[0005] In view of such circumstances, in the industry, it is possible to bond firmly and securely to building materials having a rough surface in a short time, and continuously It has been desired to create a joining material with good workability, such as being able to shift to a process, being able to freely shift during positioning, and being able to immediately move to a target position. .

[0006]

According to this invention, an adhesive layer and an elastic porous layer are provided on at least one surface of a building material on the same surface, and the elastic porous layer is made of a thermoplastic resin or a thermosetting resin. By providing a joint type building material characterized by being filled with an adhesive containing a reactive resin and a conductor, the above conventional problems are completely eliminated.

[0007]

[Function] An adhesive layer and an elastic porous layer are provided on one surface of a building material, and the elastic porous layer is filled with an adhesive containing a thermoplastic resin or a thermoreactive resin and a conductor. Have been. In the joining operation, the pressure-sensitive adhesive layer and the elastic porous layer side of the building material are placed on the adherend and pressed. At this time, if the elastic porous layer is formed thicker than the pressure-sensitive adhesive layer, the elastic porous layer is compressed by pressing, but the contained adhesive is in a non-adhered state at room temperature. Only the agent layer is bonded to the adherend. In this state, since the elastic porous layer is always urged in the peeling direction, it is possible to arbitrarily shift the building material for positioning. After the positioning is completed, when the building material is heated by high-frequency induction heating, the conductor contained in the adhesive generates heat, and the generated heat causes the thermoplastic resin or the thermoreactive resin to melt and adhere to the adherend. Therefore, the joining operation is completed in a short time, and the process can be immediately shifted to the next step without holding.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a joint type building material according to the present invention. FIG. 1 is an external view showing a first embodiment of a joint type building material according to the present invention, and FIG. 2 is a sectional view taken along line AA ′ of FIG. As shown in the drawing, in the joint type building material (1) of the present invention, an adhesive layer (3) and an elastic porous layer (4) are provided on at least one surface of a building material (2) on the same surface. . As the building material (2) used in the present invention, non-metallic materials used for ordinary building materials, such as wood, gypsum board, calcium silicate material, and various decorative materials, are suitably used without any particular limitation. used.

The pressure-sensitive adhesive layer (3) may be a rubber-based pressure-sensitive adhesive such as natural rubber or styrene conjugated diene block copolymer, or a known pressure-sensitive adhesive such as an acrylic pressure-sensitive adhesive, a vinyl pressure-sensitive adhesive, or a silicon pressure-sensitive adhesive. Is suitably used without any particular limitation. In preparing the pressure-sensitive adhesive layer (3), in addition to the above-mentioned pressure-sensitive adhesive, if necessary, a crosslinking agent,
Various additives used in ordinary pressure-sensitive adhesives such as tackifiers, plasticizers, softeners, fillers, antioxidants, and stabilizers may be appropriately used in combination, and are not particularly limited.

Further, as the elastic porous layer (4), a foam having open cells such as a synthetic resin foam such as urethane, ethylene vinyl acetate, polyethylene and polypropylene or a rubber foam is preferably used. In addition to the above-mentioned foams, metal-based nonwoven fabrics can also be suitably used.
In this invention, the above-mentioned elastic porous layer (4) is filled with an adhesive containing a thermoplastic resin or a heat-reactive resin and a conductor. Here, as the thermoplastic resin, polyolefin, ethylene-vinyl acetate, ethylene / ethyl acrylate, polyamide, polyester, ethylene-α-olefin copolymer, thermoplastic urethane resin, styrene-butadiene / styrene Preferable examples include resins such as block copolymers, styrene-isoprene-styrene block copolymers, and styrene-ethylene-butylene-styrene block copolymers, but are not particularly limited. The heat-reactive resin is not particularly limited, but epoxy-based, phenol-based, melamine-based, urea-based, urethane-based, alkyd-based, silicone-based, and unsaturated polyester-based thermosetting resins are exemplified. It is desirable to use a resin that is cured by heating. As the conductor, any conductor can be used as long as it is heated by eddy current generated by electromagnetic induction. For example, metals such as aluminum, nickel, zinc, copper, lead, stainless steel, and various alloys are suitable. Among them, stainless steel and aluminum are preferably used from the viewpoint of heat generation efficiency and corrosion resistance. Such metals are powdered,
It is sufficient that the adhesive is contained in the adhesive in the form of a fiber, a net, or a foil. Further, in addition to the thermoplastic resin or the thermoreactive resin described above, a petroleum-based, rosin-based, terpene-based resin or the like can be blended in the adhesive as a thermofluidity modifier. For the purpose of improving the storage stability of the adhesive, various additives used in ordinary adhesives such as an antioxidant and an ultraviolet absorber can be appropriately mixed.

In the present invention, by filling the elastic porous layer (4) with an adhesive containing a thermoplastic resin or a thermo-reactive resin and a conductor as described above, high-frequency induction heating makes it easy in a short time. It becomes possible to join to an adherend. That is, when a high-frequency current based on each assigned frequency of 13 to 41 MH ₂ is passed through the elastic porous layer (4), the contained conductor generates heat, and the generated heat is used to melt the adhesive and adhere. The joining to the body can be completed.

In this embodiment, the building material (2) is plate-shaped. However, the present invention is not particularly limited. For example, the building material (2) may be rod-shaped as shown in FIG. Further, as for the elastic porous layer (4), besides being provided as shown in FIG. 1, for example, as shown in FIG.
5, or may be provided alternately adjacent to the pressure-sensitive adhesive layer (3) as shown in FIG. 5, and is not particularly limited.

FIG. 6 is a sectional view showing a second embodiment of the joint type building material according to the present invention. As shown in the figure, in the second embodiment, a foam (5) is provided in a gap between the building material (2) and the pressure-sensitive adhesive layer (3). In the second embodiment,
A foam (5) is provided on the surface of the building material (2), and a pressure-sensitive adhesive is applied to the surface of the foam (5) in various shapes such as a dot shape, a streak shape, or a thin film shape. The configuration can be arbitrarily adopted as appropriate. Thus, by providing the foam (5), cushioning and soundproofing are imparted to the joint type building material (1) of the present invention.

Further, in the present invention, the thickness and width of the pressure-sensitive adhesive layer (3) and the elastic porous layer (4) are arbitrarily determined according to the size and weight of the building material (2) or the position to be joined and the purpose. Should be set to, but more desirably,
As shown in FIGS. 1 to 6, a configuration in which the elastic porous layer (4) is formed to be thicker than the pressure-sensitive adhesive layer (3) is suitably adopted. The reason for this is that by adopting such a configuration, when the joining type building material (1) is placed on the adherend and pressed in the joining direction, the elastic porous layer (4)
Is compressed, and the elastic porous layer (4) and the pressure-sensitive adhesive layer (3) have the same thickness by pressing, and the adherend and the bonding type building material (1) are temporarily bonded by the pressure-sensitive adhesive layer (3). In this state, the building material (1) is constantly urged in the peeling direction by the elasticity of the elastic porous layer (4). Because.

FIGS. 7 and 8 are explanatory views showing the use state of the joint type building material (1) according to the present invention. As shown in the figure, in use, first, as shown in FIG. 7, the adhesive layer (3) and the porous layer (4) side of the joint type building material (1) are to be adhered (A). It is placed on top and then pressed from the building material (2) side (arrow). Then
As shown in FIG. 8, the elastic porous layer (4) is compressed by pressing from the back side, and as shown, the pressure-sensitive adhesive layer (3)
And the elastic porous layer (4) have the same thickness and come into contact with the adherend (A). At this time, since the adhesive filled in the elastic porous layer (4) contains a thermoplastic resin or a thermoreactive resin, it is in a non-adhesive state at normal temperature, and the adhesive layer (3) Only a temporary bonding state is achieved in which the bonding is performed on the adherend (A). Further, in this state, the elastic porous layer (4) in the non-adhered state is constantly urged in the peeling direction, so that the positioning can be easily performed, and the elastic porous layer (4) can be immediately moved to the target position. be able to.
Thereafter, by applying high-frequency induction heating to the joint-type building material (1), a conductor contained in the adhesive is heated, and the generated heat causes the thermoplastic resin or the thermosetting resin to melt, thereby causing elasticity. The bonding operation is completed by bonding the porous layer (4) to the adherend (A).

[0016]

As described in detail above, the present invention is characterized in that an adhesive layer and an elastic porous layer are provided on at least one surface of a building material on the same surface, and the elastic porous layer is formed of a thermoplastic resin. Alternatively, since it is a joint type building material characterized by being filled with an adhesive containing a thermoreactive resin and a conductor, a building material such as a decorative material can be securely applied in a short time by high frequency induction heating. It has an excellent effect that workability is extremely good, for example, it can be bonded to the body and can be continuously shifted to the next step. In addition, since the adhesive and the adhesive are used together, the adhesive part is easily peeled off during reforming, the surface of the adherend is reduced in dirt, and the creep phenomenon caused by external factors or the like when the adhesive layer alone is used. However, since the adhesive is used in combination, it is possible to prevent the creep phenomenon. In addition, repelling force such as warpage of building materials can be prevented by the adhesive. In addition, by adopting a configuration in which the elastic porous layer is provided thicker than the pressure-sensitive adhesive layer, it can be freely shifted by positioning when placed on an adherend, and can be immediately moved to a target position. The effect that it can be made to play is produced. further,
By adopting a configuration in which the gap between the pressure-sensitive adhesive layer and the building material is filled with the foam, the cushioning property is improved, the vibration of the joint is attenuated, and the soundproof effect can be expected.

[Brief description of the drawings]

FIG. 1 is an external view showing a first embodiment of a joint type building material according to the present invention.

FIG. 2 is a cross-sectional view taken along the line AA ′ of FIG.

FIG. 3 is an external view showing one embodiment of a joint type building material according to the present invention.

FIG. 4 is an external view showing one embodiment of a joint type building material according to the present invention.

FIG. 5 is an external view showing one embodiment of a joint type building material according to the present invention.

FIG. 6 is a sectional view showing a second embodiment of the joint type building material according to the present invention.

FIG. 7 is an explanatory view showing a use state of the joint type building material according to the second embodiment of the present invention.

FIG. 8 is an explanatory view showing a joint state of the joint type building material according to the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joining type building material 2 Building material 3 Adhesive layer 4 Elastic porous layer 5 Foam

Claims (4)

(57) [Scope of request for utility model registration] An adhesive layer and an elastic porous layer are provided on at least one surface of a building material on the same surface, and the elastic porous layer contains a thermoplastic resin or a thermoreactive resin and a conductor. A bonding type building material characterized by being filled with an adhesive. 2. The joined building material according to claim 1, wherein the elastic porous layer is provided thicker than the pressure-sensitive adhesive layer. 3. The joint type building material according to claim 1, wherein a foam is provided in a gap between the pressure-sensitive adhesive layer and the building material. 4. The joined building material according to claim 1, wherein the elastic porous layer is a foam having open cells.