JP2001322104A - Method for connecting and adhering building decorative board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for connecting and adhering a building decorative board capable of simply and accurately connecting between connecting end faces to be butted and connected while integrating in the case of connecting adhering the decorative board such as a floor plate, a wall plate or the like. SOLUTION: The method for connecting and adhering the building decorative board comprises the steps of disposing a high-frequency induction heater and an adhesive layer made of a hot-melt adhesive on one connecting end face to be connected to an adjacent building decorative plate in a butted state, heating and melting the adhesive layer from the front side of the decorative board by the heater, then radiating and solidifying the adhesive layer to adhere and integrate the connecting end faces of the decorative boards with each other. When refurnished or disassembled, the adhesive layer is softened and melted by the heater, and the decorative board is efficiently removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of joining and bonding a decorative panel for forming an interior or exterior such as a floor or a wall in a building such as a house.

[0002]

2. Description of the Related Art Conventionally, for example, when a floorboard is constructed on a floor base material, a large number of floorboards having male and female real parts formed on the four end faces and mating male and female real parts of adjacent floorboards are fitted to each other. This is done by sequentially laying in the plane direction while fixing, and fixing the end of one floor plate to the floor base material with nails, staples, screws, or other fasteners. At this time, in order to prevent the head of the fastener from being exposed on the surface of the floorboard, a part of the real part protruding from the joint end face of one floorboard is nailed, and the real part is fitted to the real part. It is covered by the real part of the other floorboard to be joined. In addition, the lower surface of each floorboard is bonded and fixed to the upper surface of a floor base material by using an adhesive or a double-sided tape together with the fixing device.

[0003]

However, according to such a method of connecting floorboards, the male and female real parts of the adjacent floorboards are fitted to each other by using fasteners such as nails, staples and screws. Since these floorboards are integrally connected and fixed, not only skill is required to accurately strike a fixing tool such as a nail on a floor base material, but also work time is reduced due to labor required for construction, and furthermore, Since the fastener is driven into the real part formed thinner than the floorboard itself, cracks and cracks occur in the floorboard and it has to be replaced with another floorboard, which is not only uneconomical There has been a problem that the work of laying floorboards requires considerable labor and labor. Furthermore, if there is a poor construction site such as a gap between adjacent floorboards, it is difficult to correct it after construction.

Further, when the floor is reformed, since the floorboard is fixed to the floor base material by a fixing tool such as a nail as described above, it is difficult to pull out the fixing tool. At present, it is dismantled while destroying floorboards. At that time, if the floorboard is fixed to the floor base material using an adhesive or a double-sided tape together with the fixing tool, there is a problem that the disassembling operation becomes more difficult.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and an object of the present invention is to construct a decorative veneer such as a floorboard or a wallboard on a base material, and to use the building veneers adjacent to each other. The facing end faces of the decorative panel can be easily and accurately joined and integrated without any skill, and can be installed efficiently without damaging the decorative panel for construction. It is an object of the present invention to provide a method of joining and bonding a decorative veneer for a building, which can easily correct a gap in the decorative veneer, disassemble or the like.

[0006]

In order to achieve the above object, a method for joining and bonding a decorative veneer for a building according to the present invention is, as set forth in claim 1, a method for joining opposing joints in an adjacent decorative veneer. A method for integrally bonding end faces, wherein an adhesive layer comprising a high-frequency induction heating element and a hot-melt adhesive is interposed between the opposed joint end faces, and then a high-frequency induction heating device is cut from the surface of the decorative veneer for construction. By heating the adhesive layer, the joint end surfaces of the decorative veneer are integrally bonded.

In the above-mentioned method for bonding and bonding a decorative veneer for a building, the invention according to claim 1 is a method for bonding an adhesive layer between one of two opposing joint end faces of an adjacent decorative veneer for a building and the lower part between the joint end faces. And at the back end of the decorative veneer.

In the invention according to claim 3, the adhesive layer has a structure in which a hot-melt adhesive is applied in a layer form on both surfaces of a conductive metal foil.
The invention according to the invention is characterized in that the mixture is a mixture of a conductive metal powder and a hot melt adhesive.
The invention according to claim 5 is characterized in that the adhesive layer is formed on a narrow strip-shaped sheet that is long in the length direction of the joint surface of the decorative board for construction.

[0009]

[Function] When an architectural decorative veneer is applied on a base material, an adhesive layer composed of a high-frequency induction heating element and a hot melt adhesive is interposed between opposing end faces of the adjacent architectural decorative veneers to be joined in abutting manner. Let it. Thereafter, when a high-frequency induction heating device is arranged and operated on the surface of the decorative veneer above the joint end surface, the high-frequency induction heating element in the adhesive layer generates heat due to a magnetic field generated from the high-frequency induction heating device. The heat melts the hot melt adhesive and adheres to the joint end surface of the decorative veneer. When this high-frequency induction heating device is moved along the joint end surface on the surface of the decorative veneer above the joint end surface between the decorative veneer plates, the high frequency induction heating device is interposed between the joint end surfaces of the adjacent decorative veneer plates. The hot-melt adhesive in the adhesive layer is sequentially melted, cooled and solidified after passing through the high-frequency induction heating device, so that the joint end surfaces of the decorative boards for building are firmly adhered and fixed over the entire length.

[0010] When the adhesive layer is provided between opposing joint end faces of adjacent building decorative boards and a back end of one of the building decorative boards below between the joint end faces, the high-frequency induction heating element is provided. Thereby, the back surface of the decorative veneer can be fixed to the base material at the same time as the bonding end surfaces of the decorative veneer are bonded to each other.

[0011] When a defective construction site such as a gap is generated between the constructed decorative veneers, the high-frequency induction heating element in the adhesive layer at the location after the construction is applied to the decorative veneer. When the surface is heated by the high-frequency induction heating device, the hot melt adhesive melts, so that the gap of the decorative veneer can be easily corrected before the adhesive is solidified again, and accurate construction is performed. Becomes possible. Further, at the time of remodeling or dismantling, when the high-frequency induction heating device is moved along the joining end face on the surface of the building decorative board above the joining end face between the building decorative boards, each of the adjacent architectural decorative boards is moved. As the hot melt adhesive that bonds the joining end faces of the boards melts,
It can be easily removed from the base material and can be dismantled efficiently.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, a specific embodiment of the present invention will be described. In FIG. 1, reference numeral 1 denotes a decorative panel for construction such as a floor panel or a wall panel having a decorative surface. The two decorative veneers 1, 1 facing each other are arranged such that their opposing joint end surfaces 2, 2 are abutted with each other, and are integrally formed via an adhesive layer 3 interposed between these joint end surfaces 2, 2. Joined and glued.

[0013] The fixing of the decorative veneer 1 to a base material such as a floor base material or a wall base material may be performed using a small number of nails, tackers, double-sided tapes, or the like.
The same adhesive layer 3 'as the adhesive layer 3' for bonding between the opposing joint end surfaces 2 and 2 of the adjacent building decorative plates 1 and 1 is attached to one of the architectural decorative plates below the joint end surfaces 2 and 2. 1
It is desirable that the decorative veneer 1 is fixed to the base material by the adhesive layer 3 '.

In this case, the adhesive layer 3 ′ provided on the back end of the decorative veneer 1 and the adhesive layer 3 interposed between the opposing joint end surfaces 2, 2 of the adjacent decorative veneer 1, 1 As shown in FIG. 4, the adhesive layers 3 and 3 ′ may be formed separately from each other and separated from each other at appropriate intervals. 3, one half portion 31 in the width direction is interposed between the facing joint end surfaces 2 and 2 of the adjacent decorative veneers 1 and 1 over the entire length,
The other half portion 32 is bent with respect to the one half portion 31 so as to be continuously and closely in contact with the back surface of the end of one decorative veneer 1.

The adhesive layers 3, 3 'are composed of a high-frequency induction heating element 3A made of metal foil or metal powder and a hot melt adhesive 3B. Specifically, when the high-frequency induction heating element 3A is made of a conductive metal foil such as aluminum, iron, copper, nickel, and stainless steel, as shown in FIG. Hot melt adhesives 3B and 3B are applied in layers on both sides of 3A.When the high-frequency induction heating element 3A is a conductive metal powder such as aluminum, iron, copper, nickel, and stainless steel, As shown in FIG. 3, an appropriate amount of a high-frequency induction heating element 3A made of the metal powder is mixed with a hot melt adhesive 3B. As is well known, the hot melt adhesive 3B is a solid polymer thermoplastic resin that melts when heated and becomes a fluid liquid, and solidifies when left to cool. Also, in the adhesive layers 3, 3 'using a metal foil as the high-frequency induction heating element 3A, a large number of holes penetrating between the front and back surfaces are formed in the metal foil. The hot melt adhesives 3B, 3B applied to the substrate may be integrally and continuously formed.

The adhesive layers 3 and 3 'are formed in a band-shaped sheet or a rectangular sheet having a fixed width, a fixed length and a fixed thickness, and the width thereof is as shown in FIG. When provided solely between the joining end faces 2 and 2 of the plates 1 and 1, the width is slightly smaller than the width of the joining end face 2 and the length is formed substantially equal to the entire length of the joining end face. 1
As shown in (1), when it is continuously provided up to the end back surface of one architectural decorative board 1, it is formed wider than the width of the joint end face 2.

With the adhesive layers 3, 3 ', the joint end faces 2, 3 of the adjacent decorative veneers 1, 1 facing each other in abutting manner.
In order to bond the two together, firstly, when the architectural decorative board 1 is disposed on a base material of a floor or a wall, an adhesive is applied between the joint end surfaces 2 and 2 of these architectural decorative boards 1 and 1. A layer 3 is interposed and the adhesive layer 3 ′ is also in close contact with the back surface of one end of the decorative veneer 1 between the joint end surfaces 2.

Thereafter, as shown in FIG. 5 and FIG. 6, on the surfaces of the facing ends of the decorative decorative boards 1, 1 above the joint end faces 2, 2, ie, above the adhesive layers 3, 3 '. When a high-frequency magnetic field is generated by operating the high-frequency induction heating device 4 and operating the high-frequency induction heating device 4, the high-frequency induction in the adhesive layers 3, 3 'below the high-frequency induction heating device 4 is generated by the magnetic field. The heating element 3A generates heat, and the hot melt adhesive 3B is heated and melted by the heat.
1 are bonded together by an adhesive layer 3 interposed between the two joint end surfaces 2, 2, and one of the decorative decorative boards 1 below the joint end surfaces 2, 2. The architectural decorative boards 1, 1 are adhered and fixed to the base material 9 by the adhesive layer 3 ′ arranged on the back surface of the end.

When the high-frequency induction heating device 4 is moved along the joint end surfaces 2 and 2 of the decorative veneers 1 and 1, when the high-frequency induction heating device 4 passes therethrough, the adhesive layer 3 below the high-frequency induction heating device 4 is removed. The hot melt adhesive 3B of 3 'is continuously melted and cooled after passing through the high frequency induction heating device 4.
After being solidified, the joint end surfaces 2 and 2 of the decorative decorative boards 1 and 1 and the back surface of the end of the decorative decorative board 1 with respect to the base material 9 are integrally bonded and fixed over the entire length.

In FIG. 1, the shape of the facing joint end surfaces 2 and 2 of the architectural decorative boards 1 and 1 is such that the joint end face 2 of one of the architectural decorative boards 1 is a predetermined shape from the front side to the rear side. It is formed by an inclined end face inclined outward at an angle, and formed by an inclined end face inclined outward at a predetermined angle from the front side to the back side of the joint end face 2 of the other decorative decorative board 1. However, it may be formed on the joint end face having the shape shown in FIGS.

That is, FIG. 7 shows that the male and female real parts 5, 6 are formed on the mutually parallel end faces of the decorative veneer 1, and that the two decorative veneer boards 1, 1 are opposed to each other. 6 are fitted to each other, the lower end of the male part 5 of one decorative veneer 1 and the upper surface of the female part 6 of the other decorative veneer 1 with which the lower surface is in contact make the joining end faces 2 and 2. Has formed. More specifically, the male part 5 is formed by projecting a center part of the end face in the thickness direction by a predetermined length, and cuts a lower end part of the lower surface side of the male part 5 inward by a predetermined width. A notch engaging portion 7 having an inverted L-shaped cross section is formed, and a horizontal plane of the notching engaging portion 7 is formed on the joining end face 2 on the male part 5 side. A concave groove for fitting the male part 5 is formed, and a lower part protrudes from the concave groove to form a horizontal ridge 8 engaging with the notch engaging part 7 of the male part 5. The upper surface of the horizontal ridge 8 is formed on the joint end surface 2.

FIG. 8 shows an upper half portion of the decorative veneer 1 for architectural decorative board 1 in which the lower half of one end is cut in an inverted L-shape by a certain width over the entire length. Is formed on the horizontal ridge portion 5A, the lower surface of the horizontal ridge portion 5A is formed on the engagement end surface 2, and the upper half of the other end portion is cut off by a certain width in an L-shaped cross section over the entire length. The lower half is a horizontal ridge 6A
And the upper surface of the horizontal ridge portion 6A is formed on the engagement end surface 2. FIG. 9 shows that at the end faces parallel to each other in the decorative veneer 1, a male part 5 having a constant protruding length projecting over the entire length is formed at the center in the thickness direction of one end face, and the other end face is formed. A grooved female part 6 for fitting the male part 5 is formed at the center in the thickness direction over the entire length of the male part 5. The opposite end faces are formed on the engagement end faces 2 and 2.

If the architectural decorative panel 1 formed as described above is a rectangular wall panel forming the interior and exterior of a building, the engaging end faces 2 are provided on both end faces parallel to each other in the longitudinal direction.
2 are formed, and when the facing decorative end surfaces 1 and 2 of the building decorative boards 1 and 1 adjacent to the wall base material are joined to each other, the engaging decorative end faces 2 and 1 of the building decorative boards 1 are joined to each other. After adhering the adhesive layer 3 formed in the shape of a narrow strip sheet over the entire length, the engaging end face 2 of the other decorative decorative board 1 is overlapped with the adhesive layer 3 via the adhesive layer 3. The adhesive layer 3 'formed on the narrow band-shaped sheet is also adhered to the back surface of one end of the decorative veneer 1 under the engagement end surface 2 at the same time. In addition, these adhesive layers 3,
3 ', as described above, the adhesive layer of the wide band-shaped sheet may be continuously adhered from between the engagement end surfaces 2 and 2 to the back surface of one end of the decorative veneer 1 for building.

In this state, as described above, the high-frequency induction heating device 4 is placed on the surfaces of the joint ends of the decorative boards 1 for construction.
And the high-frequency induction heating device 4 is operated and moved in the length direction along the joining end portion, so that the adhesive layer 3 interposed between the joining end surfaces 2 and the one building construction The hot-melt adhesive 3B with the adhesive layer 3 'adhered to the end back surface of the decorative panel 1 is simultaneously heated and melted, and the joint end faces 2, 2 of the decorative panels 1, 1 are extended over the entire length. In addition to being integrally bonded and fixed, the decorative decorative boards 1 and 1 are bonded and fixed to the base material 9. This work is sequentially performed on the decorative veneers 1 and 1 joined to each other via the adhesive layer 3,
Form an interior or exterior wall.

In this wall construction, only the end of the decorative veneer 1 provided in contact with the ceiling or floor is attached to the wall base material with nails or the like, and the attachment portion is covered with a peripheral edge of the ceiling or a baseboard. , Fix. Therefore, the fixing of the decorative veneer 1 to the wall base material by nailing is only required at the end of the decorative veneer 1 arranged along the ceiling or the floor, so that the construction efficiency is remarkably improved. At the time of renovation or demolition of a building, the decorative laminate 1 for building 1 is fixed to the adhesive layer 3 for bonding the bonding end surfaces 2 between the two and the wall base material. When the hot melt adhesive 3B with the agent layer 3 'is heated and melted by the high-frequency induction heating device 4, the building decorative board 1 can be easily and sequentially removed from the wall base material without any damage. It is.

Also, once the decorative veneer 1 is constructed, if the construction state of some of the decorative veneers 1 is poor, the high-frequency induction heating device 4 is used to perform the defective operation in the same manner as described above. The adhesive layers 3, 3 'of a part can be heated and melted from the surface of the decorative veneer 1 and easily corrected before the adhesive layer 3 is solidified. Furthermore, after the construction, since the joint end surfaces 2 and 2 of the decorative veneers 1 and 1 are entirely joined and adhered by the hot melt adhesive 3B of the adhesive layer 3, the adhesive layer 3 The gaps between the joining end surfaces are sealed without any gap, so that there is almost no passage of moisture, air, electromagnetic waves, etc., and a wall structure that is highly airtight, has high heat insulation properties, and blocks the passage of electromagnetic waves can be formed.

Even in the case where the architectural decorative panel 1 is a floor panel forming the floor of a building, similar to the above-described wall construction method,
The male and female real parts 5 and 6 of the architectural decorative boards 1 and 1 adjacent to the floor base material are fitted to each other, and the engaging end face 2 previously formed on the real part of one of the decorative decorative boards 1 The other end of the decorative veneer 1 is joined to the other end of the architectural veneer 1 via the adhesive layer 3 adhered or placed over the entire length of the building. After the adhesive layer 3 ′ formed in the narrow band-shaped sheet is also adhered to the back surface of the end of the decorative board 1, high-frequency induction heating is performed on the surface of the joint end of the decorative boards 1 for building 1. The adhesive layer 3 interposed between the joining end surfaces 2 and 2 and one of the buildings are arranged by disposing the device 4 and moving the high frequency induction heating device 4 in the length direction along the joining end while operating the high frequency induction heating device 4. The hot-melt adhesive 3B with the adhesive layer 3 'adhered to the back of the end of the decorative panel 1 is simultaneously heated and melted. Bonding the joining end face 2, 2 architectural veneer 1,1 bonded together over the entire length, the base material architectural veneer 1,1 is fixed, it is intended to fix. This work is sequentially performed on the decorative veneers 1 and 1 joined to each other via the adhesive layer 3 to form a floor structure.

In this wall construction as well, only the end of the decorative veneer 1 provided along the edge of the floor covering material at the lower end of the wall surface is attached to the floor covering material with a nail or an appropriate adhesive. The mounting part is covered and fixed with a baseboard. Therefore, since the fixing to the floor base material is only required at the end of the decorative veneer 1 provided at the lower end of the wall surface, the construction efficiency is remarkably improved, and at the time of floor remodeling or dismantling, the decorative veneer 1 is used. A high-frequency induction of a hot melt adhesive 3B between an adhesive layer 3 bonding the bonding end surfaces 2 of the two to each other and an adhesive layer 3 'fixing the decorative decorative board 1 to a floor base material. When heated and melted by the heating device 4, the decorative veneer 1 can be sequentially and easily removed from the flooring material without any damage. Further, once the decorative veneer 1 for construction is applied on the floor substrate, if the construction state of some of the decorative veneers 1 for construction is poor, the installation is performed by the high-frequency induction heating device 4 in the same manner as described above. The adhesive layer 3, 3 'in the defective portion can be heated and melted from the surface of the decorative board 1 for building, and can be easily corrected before the adhesive layer 3, 3' solidifies.

Next, specific examples of the present invention will be described. [Example 1] A polyolefin-based hot-melt adhesive softening at about 120 ° C is applied in a layer form at a rate of 50 g / m ^{2 on} both sides of a thin sheet-like aluminum foil having a thickness of 10 to 50 µm,
An adhesive layer was formed by solidifying the hot melt adhesive. After attaching this adhesive layer to one of the joint end surfaces of the joint portion of the adjacent wall plates that are joined to each other, the wall plates are joined to each other on the wall base material in such a manner that their joint end surfaces are butt-joined. Then, a commercially available high-frequency induction heating device is disposed on the surface of the wall plate at the joining portion in a non-contact state, and a magnetic field from the high-frequency induction heating device is applied to the adhesive layer for 5 seconds along the joining end surface. The hot melt adhesive was melted by moving, and after passing through a high-frequency induction heating device, it was allowed to cool and solidify by standing to cool, thereby integrally bonding the joining end surfaces of the wall plates. As the wall plate, a rectangular wall plate obtained by attaching a decorative veneer to the surface of a medium-density wood fiber board (MDF) having a thickness of 9 mm was used.

Example 2 10 to 50 parts of a conductive metal powder and 90 to 50 parts of a polyolefin hot melt adhesive were kneaded.
The melted adhesive is applied to the joint end surface formed on one of the male and female real parts of the floorboard using an application gun at a rate of 10 to 50.
g / m ² , and the mixture was allowed to cool and solidify to form an adhesive layer. After laying the floorboard on the floor base material while fitting the male and female real parts facing each other, a commercially available high-frequency induction heating device is arranged in a non-contact state on the surface of the floorboard at the joint, and the high-frequency induction heating device is provided. The magnetic field from 1 to 5 seconds is applied to the adhesive layer to melt the hot melt adhesive, and after passing through a high frequency induction heating device, it is cooled and solidified by standing to cool, and the joining end faces of the floorboard are united together. Glued.

[0031]

As described above, according to the method for bonding and bonding a decorative veneer for a building according to the present invention, when the opposing bonded end faces of adjacent decorative veneer boards are integrally bonded, the distance between the opposing bonded end faces is reduced. After interposing an adhesive layer composed of a high-frequency induction heating element and a hot melt adhesive on the surface, the high-frequency induction heating device heats the above-mentioned adhesive layer from the surface of the decorative veneer for building, thereby joining the end face of the decorative veneer for building. Can be easily and accurately joined and integrated without needing any skill, and without damaging the decorative veneer. Work can be performed efficiently. In addition, by providing the adhesive layer between the facing joint end faces of the adjacent building decorative boards and the back end of one of the building decorative boards below between the joining end faces, the decorative board for building is provided. And the back surface of the decorative veneer can be securely fixed to the base material at the same time as the bonding between the joining end surfaces.

Further, in the case where a defective construction such as a gap has occurred between the constructed decorative panels for construction, the high-frequency induction heating element in the adhesive layer at that location after the construction is applied to the decorative panel for building. By heating from the surface by the high-frequency induction heating device to melt the hot melt adhesive, it is possible to easily correct the displacement of the building decorative board until the hot melt adhesive solidifies again, Accurate construction is possible. In addition, at the time of remodeling or dismantling, if the high-frequency induction heating device is moved along the joining end face on the surface of the building decorative board above the joining end face between the building decorative boards, the adjacent building makeup Since the hot-melt adhesive that bonds the joining end faces of the boards melts, the decorative boards for construction can be easily removed from the base material in sequence,
Renovation work and dismantling work can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing a state in which decorative veneers for construction are joined via an adhesive layer;

FIG. 2 is a sectional view of an adhesive layer,

FIG. 3 is a sectional view of an adhesive layer having another structure.

FIG. 4 is a vertical cross-sectional front view showing another bonding state of the decorative veneer boards with an adhesive layer.

FIG. 5 is a plan view showing a construction state;

FIG. 6 is an enlarged vertical cross-sectional front view of the main part,

FIG. 7 is a longitudinal sectional front view showing another structure in which an adhesive layer is interposed between joining end faces;

FIG. 8 is a longitudinal sectional front view showing still another structure in which an adhesive layer is interposed between joining end faces;

FIG. 9 is a longitudinal sectional front view showing still another modified example in which an adhesive layer is interposed between joining end surfaces.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Decorative board for construction 2 Joining end face 3, 3 'Adhesive layer 3A High frequency induction heating element 3B Hot melt adhesive 4 High frequency induction heating device

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) E04F 13/08 E04F 13/08 K 101 101K 15/00 601 15/00 601B (72) Inventor Takashi Ono Toyama F-term (reference) in 1 Daiken Kogyo Co., Ltd., Inami-cho, Inami-cho, Higashi-Tonami-gun, Japan. FA08 4J040 DA001 HA066 JA09 JB01 JB10 KA32 MA08 MB03 MB13 NA13 PA23 PA31 PB05

Claims (5)

[Claims] 1. A method for integrally bonding opposed joint end faces of adjacent building decorative boards, wherein an adhesive layer comprising a high-frequency induction heating element and a hot melt adhesive is interposed between the opposed joint end faces. After bonding, the bonding end surface of the decorative veneer is integrally bonded by heating the adhesive layer from the surface of the decorative veneer with a high-frequency induction heating device. . 2. The method according to claim 1, wherein the adhesive layer is provided between opposing joint end faces of adjacent building decorative boards and a back end of one of the building decorative boards below the joint end faces. Item 4. The method for bonding and bonding a decorative veneer according to Item 1. 3. The architectural decorative board according to claim 1, wherein the adhesive layer is formed by applying a hot-melt adhesive in layers on both surfaces of a conductive metal foil. Joining and bonding methods. 4. The method according to claim 1, wherein the adhesive layer is a mixture of a metal powder having conductivity and a hot-melt adhesive. . 5. The method according to claim 1, wherein the adhesive layer is formed on a narrow strip-shaped sheet that is long in a length direction of a joint end face of the decorative board for construction. The method for bonding and bonding the decorative veneer described in the above.