JP2006037554A - Corner wall face material and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a corner wall face material having improved strength and durability with easy manufacturing work, and to provide its manufacturing method. <P>SOLUTION: In manufacturing the corner wall face material 1, two plate materials 2, 3 each of which has one side end face cut at a predetermined angle for adhesive A to be applied thereto are put into the condition of abutting on each other and then they are heated and adhered to each other with high frequency induction heating. Part A1 of the adhesive A applied to abutment faces 2a, 3a of an abutment portion 4 stick out a V-grooved portion 5 which is formed in the abutment portion 4 between the two plate materials 2, 3, along the longitudinal direction of the V-grooved portion 5. The stick out adhesive A1 is adhered to the two plate materials 2, 3 with high frequency induction heating. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a corner wall surface material and a method for manufacturing a corner wall surface material used in a corner portion of a siding material installed on an outer wall of a building.

  Conventionally, in order to process a wall surface material for a corner, for example, an epoxy-based adhesive is applied to the abutting portion, and the two plate materials are set in a mold that is held at a predetermined angle, and the pressure state (cold press) is 1 Hold for ~ 2 days waiting for the adhesive to cure. However, since such a method is poor in production efficiency, the two plate members whose side end surfaces are cut at a certain angle are pressed against each other, and heat-bonded in a short time by high-frequency dielectric heating while maintaining the pressed state. The technique which can do is proposed (for example, refer patent document 1).

The corner wall material manufactured by such a technique has an accurate positional relationship over the entire length even when the two plate materials to be bonded are of a long size, and an even bonding pressure is applied. High-frequency dielectric heating can be performed in the state, and there is no partial adhesion failure and the like is uniformly bonded.
Japanese Patent Laid-Open No. 2000-145094

  However, the corner wall material formed by abutting two plate members is merely formed by applying an adhesive to the side end surface of the butted portion. For this reason, it has been desired to develop a wall material for corners that can further improve strength and durability.

  An object of the present invention is to provide a wall surface material for corners and a method for manufacturing a wall surface material for corners, which can improve strength and durability and can be easily manufactured.

In the first aspect of the present invention, for example, as shown in FIG. 1, two side plates 2, 3 each having one side end face cut at a predetermined angle and coated with an adhesive A are abutted and bonded by high frequency dielectric heating. In the corner wall material 1 formed by
A part A1 of the adhesive A applied to the abutting surfaces 2a and 3a of the abutting part 4 is added to the V groove part 5 formed in the abutting part 4 of the two plates 2 and 3, and the length of the V groove part 5 The problem was solved by sticking the protruding adhesive A1 to the two plate members 2 and 3 by high-frequency dielectric heating.

  Here, the predetermined angle indicates a cutting angle of the side end surfaces of the two plate members 2 and 3 in order to make the angle between the two plate members 2 and 3 abutted into a desired angle. For example, when this cutting angle is set to 45 degrees, the angle between the two plate members 2 and 3 abutted can be made a right angle, and when it is set to 60 degrees, the two plate members 2 abutted, The angle between the three can be 120 degrees. That is, the said predetermined angle is variable according to the angle of the corner part of the building which should attach the said wall surface material 1 for corners, and can be suitably changed in the range which does not deviate from the summary of this invention.

  According to the first aspect of the present invention, the adhesive A applied to the butting surfaces 2a and 3a of the butting part 4 is applied to the V-groove part 5 formed in the butting part 4 of the two plate members 2 and 3. A part A1 is protruded along the length direction of the V-groove part 5, and the protruding adhesive A1 is adhered to the two plates 2 and 3 by high-frequency dielectric heating. By the part A1, the two plate members 2 and 3 can be firmly bonded along the length direction of the V-groove portion 5. That is, unlike the conventional case, not only the butting portion 4 is bonded, but a part A1 of the adhesive A protrudes also from the V groove portion 5 so that the two plate members 2 and 3 are bonded and reinforced. Further, the strength and durability can be improved.

As shown in FIG. 1 and FIG. 2, for example, the invention according to claim 2 butt-joins two plate members 2 and 3 each coated with an adhesive A by cutting one side end face at a predetermined angle. In the manufacturing method of the wall surface material 1 for a corner to be bonded by heating,
A part A1 of the adhesive A applied to the butting surfaces 2a and 3a of the butting portions 4 of the two plate materials 2 and 3 is formed into a V groove portion 5 formed in the butting portions 4 of the two plate materials 2 and 3. Further, the problem-solving means is that the adhesive A1 protrudes along the length direction, and the protruding adhesive A1 is brought into close contact with the two plates 2 and 3 by high-frequency dielectric heating.

  According to the second aspect of the present invention, a part A1 of the adhesive A applied to the butting surfaces 2a and 3a of the butting portions 4 of the two plate members 2 and 3 can be used as the two plate members 2 and 3. The V-groove 5 formed in the butting portion 4 protrudes along the length direction, and the protruding adhesive A1 is adhered to the two plate members 2 and 3 by high-frequency dielectric heating. In contrast, not only the butting portion 4 is bonded, but part A1 of the adhesive A protrudes also into the V groove portion 5 so that the two plates 2 and 3 can be bonded and reinforced, further improving the strength. It is possible to manufacture the corner wall material 1 made to be made.

Invention of Claim 3 is the manufacturing method of the wall surface material 1 for corners of Claim 2, as shown, for example in FIG. 3 (a), (b),
When the two plate members 2 and 3 are butted, one side 2b and 3b of the butted surfaces 2a and 3a are butted against each other and the other side 2b and 3b are butted against the other side. Matching the sides 2c and 3c to each other was used as a means for solving the problem.

  According to the third aspect of the present invention, when the two plate members 2 and 3 are abutted, one side 2b and 3b of the abutting surfaces 2a and 3a are abutted with each other, and then the one side The adhesive A can protrude from the one side 2b, 3b toward the other side 2c, 3c simply by abutting the other side 2c, 3c with the two 2b, 3b facing each other. And the manufacturing operation of the wall surface material 1 for a corner can be performed easily.

For example, as shown in FIG. 2, the invention described in claim 4 is a method for manufacturing a wall surface material 1 for corners according to claim 2 or 3.
The two plate members 2 and 3 that have been butted together are placed on a gantry 6 provided in the high-frequency dielectric heating device K, and the tip 7a of the first electrode 7 provided in the high-frequency dielectric heating device K is Positioned so as to be close to the V-groove part 5, and then pressing the two plate members 2, 3 by the pressing means 10, 11, the V-groove part 5 and the tip part 7a of the first electrode 7 The solution to the above problem was to apply a high-frequency current in a state where a part A1 of the adhesive A was filled in between and heat-bonding.

  According to the invention described in claim 4, the two butted plates 2 and 3 are placed on the gantry 6 provided in the high-frequency dielectric heating device K and provided in the high-frequency dielectric heating device K. The tip 7a of the first electrode 7 is positioned so as to be close to the V-groove 5, and then the two grooves 2 and 3 are pressed by the pressing means 10 and 11, and the V-groove 5 The two plates 2 and 3 are firmly bonded by simply applying a high-frequency current and heat-bonding in a state where a part A1 of the adhesive A is filled between the tip 7a of the first electrode 7. can do. In other words, the corner wall material 1 with improved strength can be easily manufactured by using the high-frequency dielectric heating device K when the two plates 2 and 3 are bonded.

The invention according to claim 5 is, for example, as shown in FIG. 2, in the method of manufacturing the corner wall material 1 according to claim 4,
When pressing the two plate members 2 and 3 by the pressing units 10 and 11, the vertical direction pressing unit 10 that presses in the direction of the gantry 6 and the butting portion 4 of the two plate members 2 and 3, Pressing by the left and right direction pressing means 11 that presses these two plate members 2 and 3 from the lateral direction is used as a means for solving the problems.

  According to the invention described in claim 5, when the two plate members 2, 3 are pressed by the pressing units 10, 11, the vertical direction pressing unit 10 that presses in the direction of the gantry 6, and the two sheets The abutting portions 4 of the two plate members 2 and 3 are pressed by the left and right direction pressing means 11 that presses the two plate members 2 and 3 from the lateral direction, so that the two plate members 2 and 3 are pressed firmly. Can be pressed uniformly, and since the high frequency current is applied in such a firmly pressed state, it can be easily heat-bonded without causing misalignment or the like.

Invention of Claim 6 is the manufacturing method of the wall surface material 1 for corners of Claim 4 or 5, as shown, for example in FIG. 2 or FIG. 4 (a),
The means for solving the above-described problems is that the insulating tape B is previously attached to the tip 7a of the first electrode 7.

According to the invention described in claim 6, the surface potential of the first electrode 7 is reduced by preliminarily attaching the insulating tape B to the distal end portion 7 a of the first electrode 7. Therefore, for example, the electrode 7 is not sparked by water vapor generated by high frequency heating.
In addition, since the adhesive A1 is filled between the electrode to which the insulating tape B is attached and the V-groove 5, the adhesive in the V-groove 5 of the manufactured wall surface material 1 for corners is used. Since the surface of A1 can be formed smoothly, it looks good.

According to the wall surface material for a corner of the present invention, a part of the adhesive applied to the abutting surface of the abutting portion is formed in the length direction of the V-groove portion in the V-groove portion formed in the abutting portion of the two plate members. Unlike the conventional case, only the butt portion of the two plate members is bonded to the two plate members by being in close contact with the two plate members by high-frequency dielectric heating. In addition, since a part of the adhesive protrudes from the V-groove and the two plate members are bonded and reinforced, the strength and durability can be further improved.
Moreover, when manufacturing the wall surface material for corners of this invention, a part of adhesive agent apply | coated to the butt | matching surface of the butt | matching part of the said 2 board | plate material was formed in the butt | matching part of the said 2 board | plate material. The V-groove part protrudes along the length direction, and the protruding adhesive is brought into close contact with the two plate materials by high-frequency dielectric heating. It is possible to bond and reinforce two plate members by protruding a part of the adhesive also into the V-groove, and it is possible to manufacture a corner wall material with improved strength.
Further, when the two plate materials are bonded, by using a high-frequency dielectric heating device, the two plate materials can be bonded firmly, and a corner wall material with improved strength is easily manufactured. be able to.

  Embodiments of a method for manufacturing a corner wall material 1 and a corner wall material 1 according to the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the corner wall material 1 according to the present embodiment has two plate members 2, 3 each having one side end face cut at a predetermined angle and coated with an adhesive A. In the corner wall material 1 formed by bonding by heating,
A portion A1 of the adhesive A applied to the butting surfaces 2a and 3a of the butting portion 4 is formed in the length of the V-groove portion 5 in the V-groove portion 5 formed in the butting portion 4 of the two sheets 2 and 3. The protruding adhesive A1 is in close contact with the two plates 2 and 3 by high-frequency dielectric heating.
Further, in the present embodiment, as shown in FIG. 2, a high frequency dielectric heating device K is used as means for heating and bonding the corner wall material 1.

As shown in FIGS. 1 to 3 (a) and 3 (b), each of the two plate members 2 and 3 has one side end face cut at a predetermined angle. Are configured to constitute the corner wall material 1.
Examples of the material of these plate materials 2 and 3 include various plate materials such as a wooden plate, a plywood plate, a calcium silicate plate, a hard wood piece cement plate, and a fiber reinforced cement plate. In this embodiment, the hard wood piece cement is used. A board is used.

  In the present embodiment, the predetermined angle refers to the side end surfaces that are abutted when the adhesive A is applied to each side end surface of the two cut plate members 2 and 3 and abuts each other. As the base end, an angle set so that the two plate members 2, 3 are perpendicular to each other is shown.

  The said abutting part 4 is the site | part which apply | coated the adhesive A to each side end surface of the said 2 board | plate materials 2 and 3, and butt | matched the side end surfaces to which these adhesives A were apply | coated, FIG. As shown in FIG. 1, after the side surfaces 2b and 3b of the butted surfaces 2a and 3a are butted together, the other sides 2c and 3c are butted together while the one side 2b and 3b are butted. As shown in FIG. 3B, a butt portion 4 is formed. A part A1 of the adhesive A in the butt portion 4 protrudes from the one side 2b, 3b toward the other side 2c, 3c by a predetermined amount.

  The V-groove 5 is a V-shaped groove located at the inner corner of the two plates 2 and 3, and immediately after the two plates 2 and 3 are brought into contact with each other, as shown in FIG. The amorphous adhesive A1 is accumulated. Then, the surface of the irregular adhesive A1 formed with good appearance is bonded to the two plate members 2 and 3 along the length direction of the V-groove portion 5 as shown in FIG. ing.

Examples of the adhesive A used in the present embodiment include a moisture curable urethane-based adhesive.
This moisture curable urethane-based adhesive is an adhesive mainly composed of a mixture of a raw material to be a polyurethane resin (for example, a polyisocyanate compound such as polyol and diisocyanate or triisocyanate) and a catalyst. When moisture or moisture in the air contained in the outer wall material such as a plate is absorbed, it rapidly polymerizes to form a polyurethane resin, which can firmly bond various objects to be adhered. Moreover, since cement products and wood products can be firmly bonded, they are often used in such products.
Further, when this moisture-curing urethane adhesive is heated at high frequency, it has a feature that it reacts with moisture contained in an outer wall material such as a hard wood cement board and is rapidly bonded.
In addition to the above moisture-curing urethane adhesives, epoxy adhesives and the like can be mentioned, but any adhesive can be appropriately changed without departing from the gist of the present invention.

1 to 3A and 3B, the adhesive A1 is an adhesive A1 that protrudes from the butted portion 4 toward the V-groove portion 5, and is the same as the adhesive A. Adhesive A1. The adhesive A1 protrudes by a predetermined amount along the length direction of the V-groove part 5, and is in close contact with both the two plates 2 and 3.
Here, the predetermined amount is an amount by which the two plate members 2 and 3 can be firmly bonded and reinforced by the protruding adhesive A1. In addition, when the manufactured corner wall material 1 is actually attached to a corner portion of a building, for example, the corner wall material 1 and a wall panel (not shown) due to a large amount of the protruding adhesive A1. It is needless to say that the amount is not an excessive amount that hinders the attachment of the wall surface material 1) and is suitable for the attachment of the wall surface material 1 for corners and the wall panel.

  As shown in FIG. 2, the high-frequency dielectric heating device K supports the two plates 2 and 3 at a predetermined angle so that the butted surfaces 2a and 3a of the two plates 2 and 3 face each other. The first electrode 7 at a position in the vicinity of the V-groove portion 5 of the two plate members 2 and 3, and provided above the gantry 6. A lifting frame 8 that is lifted and lowered by a cylinder (not shown), a second electrode 9 provided on a center line of the lifting frame 8 and at a position facing the first electrode 7, A plurality of vertical pressing means 10 provided on the left and right sides of the two electrodes 9 and pressing the plate members 2 and 3 on the gantry 6 from above by a cylinder 10a; and the two plate members 2 and 3 by a cylinder 11a. Plural left and right direction pressing means for pressing from the lateral direction It is schematically composed of one Tokyo.

  Here, the predetermined angle of the gantry 6 on which the two plate members 2 and 3 are placed is a corner of the building to which the corner wall material 1 is to be attached when the corner wall material 1 is manufactured. In this embodiment, the predetermined angle is set to be a right angle, and the two plate members of the corner wall material to be manufactured are set to abut at a right angle. Further, it goes without saying that even when the corner portion of the building is not perpendicular, it is possible to easily cope with this by changing the setting angle of the gantry 6.

In order to manufacture the corner wall material 1 having the above-described configuration, as shown in FIGS. 1 and 2, two side plates 2 each coated with an adhesive A by cutting one side end surface at a predetermined angle. 3 in the manufacturing method of the wall surface material 1 for a corner which is bonded by high frequency dielectric heating,
A part A1 of the adhesive A applied to the butting surfaces 2a and 3a of the butting portions 4 of the two plate materials 2 and 3 is formed into a V groove portion 5 formed in the butting portions 4 of the two plate materials 2 and 3. Then, the adhesive A1 that protrudes along the length direction is brought into close contact with the two plates 2 and 3 by high-frequency dielectric heating.

  Further, in order to perform the manufacturing method of the corner wall material 1 as described above by using the high-frequency dielectric heating device K, as shown in FIG. Place on the gantry 6 provided in the device K, and place the tip 7a of the first electrode 7 provided in the high-frequency dielectric heating device K so as to be close to the V-groove 5, and then While the two plate members 2 and 3 are pressed by the pressing means 10 and 11, a part A1 of the adhesive A is filled between the V groove portion 5 and the tip portion 7a of the first electrode 7. In this state, a high frequency current is applied to heat and bond.

  That is, first, the two plate members 2 and 3 coated with the adhesive A are abutted against each other by cutting one side end surface at a predetermined angle. When these two plate members 2 and 3 are to be abutted, as shown in FIGS. 3 (a) and 3 (b), after the one side 2b and 3b of the abutting surfaces 2a and 3a are abutted with each other, The other side 2c, 3c is butted while the one side 2b, 3b is butted. Since the adhesive A can be protruded from the one side 2b, 3b to the other side 2c, 3c simply by abutting in this way, the manufacturing work of the corner wall material 1 can be easily performed. Can do.

On the other hand, when a part A1 of the adhesive A protrudes toward the V-groove portion 5 formed on the two sheets 2 and 3, the high-frequency dielectric heating device is arranged so that the butted surfaces 2a and 3a face each other. The work of mounting on the gantry 6 provided at K is also performed.
At this time, the tip 7a of the first electrode 7 is positioned so as to be close to the V-groove 5 as shown in FIG. As shown, 7a and insulating tape B are affixed in advance to the tip. As a result, the surface potential of the first electrode 7 is lowered and the discharge can be suppressed. For example, the electrode 7 is not sparked by water vapor generated by high-frequency heating. Therefore, troubles such as scorching of the surface of the workpiece due to sparking of the electrode hardly occur. In addition, since the first electrode 7 is located in the vicinity of the V-groove portion 5 of the two plate members 2 and 3, the adhesive A1 filled in the V-groove portion 5 is in close contact with the insulating tape B. After the corner wall material is manufactured, as shown in FIG. 1, the surface of the adhesive A1 can be formed smoothly and the appearance is improved.

  The first electrode 7 is located in the vicinity of the V-groove part 5 as described above. In other words, the first electrode 7 is not in contact with the V-groove part 5 but is located in a very close part. ing. That is, as shown in FIG. 2, in order to sufficiently fill the adhesive A <b> 1 filled in the V-groove portion 5, a gap for discharging air or the like interposed between the first electrode 7 and the V-groove portion 5. Since C and C are formed, the surface of the adhesive A1 is preferable because unevenness due to residual air or the like is not formed.

  Here, examples of the insulating tape B include a fluororesin tape represented by a Teflon (registered trademark) tape and the like. This fluororesin tape has excellent heat resistance in addition to the excellent insulating properties as described above, and is suitable for use in a part of the high-frequency dielectric heating device K of the present embodiment. The insulating tape B of the present embodiment uses a Teflon tape as described above, but is not limited to this, and can be appropriately changed without departing from the spirit of the present invention.

  In addition, a silicon-based adhesive (not shown) is applied to the other surface of the insulating tape B of the present embodiment, and the releasability between the first electrode 7 and the insulating tape B is excellent. . That is, since one surface of the insulating tape B is always in contact with the adhesive A1 during the manufacture of the corner wall material 1, the remaining and hardened adhesive A1 and dirt must be removed. Don't be. However, since the wiping off of the adhesive A1 and dirt is time-consuming, as described above, if the insulating tape B in which the silicon-based adhesive material is applied to the other surface is used, the insulating tape B itself can be simply replaced. Since the wiping work can be omitted, it is preferable because it does not take time.

  Furthermore, the second electrode 9 provided on the center line of the elevating frame 8 and at a position facing the first electrode 7 is as shown in FIG. 4B in the present embodiment. The front end portion 9a is supported by the guide rod 9b, but is not limited to this. For example, the front end portion 9a protrudes toward the plate from the front end portion 9a on both the left and right sides, and is made of synthetic resin. A guard member (not shown) made of a material or the like may be attached to prevent the adhesive A from adhering to the surface of the tip portion 9a. According to this, even when the adhesive A protrudes to the tip portion 9a side, the adhesive A does not adhere to the tip portion 9a, and the trouble of wiping the adhesive A can be saved.

  Next, a part A1 of the adhesive A is placed between the V groove 5 and the tip 7a of the first electrode 7 while pressing the two plates 2 and 3 by the pressing means 10 and 11. A high-frequency current is applied and heated and bonded in the fully filled state.

As described above, the pressing means 10 and 11 mainly include the vertical direction pressing means 10 and the horizontal direction pressing means 11. That is, the force pressed from above by the vertical direction pressing means 10 acts as a component force pressing the two plate members 2 and 3 downward and a component force pressing the butt portion 4. On the other hand, the force pressed from the lateral direction by the left and right direction pressing means 11 includes a component force that pushes the two plate members 2 and 3 obliquely upward along the plate members 2 and 3 and a component force that presses the butting portion 4. Acts as Therefore, of these component forces, the component force that pushes the two plate members 2 and 3 diagonally downward and the component force that pushes the two plate members 2 and 3 diagonally upward cancel each other, A large force that presses the butting portion 4 acts.
In addition, although these press means 10 and 11 have obtained the pressing force by cylinder 10a, 11a and these cylinders 10a and 11a use the air cylinder in this Embodiment, they are not restricted to this, For example, a hydraulic cylinder or the like may be used and can be changed as appropriate without departing from the spirit of the present invention.

  Then, a high-frequency current is applied between the first electrode 7 and the second electrode 9 provided at a position facing the first electrode 7. At this time, since the high frequency current is applied in a state in which the two plate members 2 and 3 are firmly pressed by the pressing means 10 and 11 as described above, a positional shift occurs in the bonding state of the two plate members 2 and 3. It is possible to heat and bond easily without causing the above.

As described above, according to the wall surface material 1 for a corner of the present embodiment, the butt surface 2a of the butt portion 4 is formed in the V groove portion 5 formed in the butt portion 4 of the two plates 2 and 3. A part A1 of the adhesive A applied to 3a protrudes along the length direction of the V-groove portion 5, and the protruding adhesive A1 is brought into close contact with the two plates 2 and 3 by high-frequency dielectric heating. Therefore, unlike the conventional case, not only the butted portions 4 of the two plate members 2 and 3 are bonded, but a part A1 of the adhesive A protrudes into the V-groove portion 5 as well. Since the sheet materials 2 and 3 are bonded and reinforced, the strength and durability can be further improved.
Moreover, when manufacturing the wall surface material 1 for a corner of the present embodiment, a part A1 of the adhesive A applied to the butting surfaces 2a and 3a of the butting portions 4 of the two plate members 2 and 3 is used. The V-groove part 5 formed in the abutting part 4 of the two sheets 2 and 3 protrudes along the length direction, and the protruding adhesive A1 is subjected to high-frequency dielectric heating to the two sheets 2 and 3 Therefore, unlike the conventional case, not only the butting portion 4 is bonded, but a part A1 of the adhesive A protrudes also from the V groove 5 to bond and reinforce the two plates 2 and 3. It is possible to manufacture the wall surface material 1 for corners with improved strength.
When the two plates 2 and 3 are bonded, the high frequency dielectric heating device K can be used to bond the two plates 2 and 3 more firmly and to improve the strength. The wall surface material 1 can be easily manufactured.

The perspective view which shows the wall surface material for corners of this invention. The front view which shows the wall surface material for corners of this invention, and the high frequency dielectric heating apparatus which heat-bonds this. It is a front view which shows the butt | matching aspect of the wall surface material for corners shown in FIG. 1 and FIG. 2, (a) shows the state which butt | matched a part of butt | matching surface, (b) shows having butt | matched the whole butt | matching surface. . It is a front view which shows the electrode provided in the high frequency dielectric heating apparatus shown in FIG. 2, (a) shows a 1st electrode, (b) shows a 2nd electrode.

Explanation of symbols

A Adhesive A1 Adhesive K High-frequency dielectric heating device 1 Corner wall material 2 Plate material 2a Butting surface 3 Plate material 3a Butting surface 4 Butting portion 5 V groove portion

Claims (6)

In a corner wall material formed by bonding two plate materials each having one side end face cut at a predetermined angle and applying an adhesive, and bonded by high frequency dielectric heating,
A part of the adhesive applied to the abutting surface of the abutting portion protrudes along the length direction of the V-groove portion in the V-groove portion formed in the abutting portion of the two plate members. A wall surface material for corners, wherein an agent is adhered to the two plate materials by high-frequency dielectric heating. In the manufacturing method of a wall material for a corner, in which one side end face is cut at a predetermined angle and two plate materials coated with an adhesive are abutted and bonded by high frequency dielectric heating,
A part of the adhesive applied to the abutting surfaces of the abutting portions of the two plate members is caused to protrude along the length direction of the V-groove portion formed in the abutting portion of the two plate members. A method of manufacturing a wall material for corners, characterized in that the adhesive is adhered to the two plates by high frequency dielectric heating. In the manufacturing method of the wall surface material for corners of Claim 2,
When the two plate members are butted together, after matching one side of the butting surface, the other side is butted while the one side is butted. Manufacturing method of wall surface material. In the manufacturing method of the wall surface material for corners of Claim 2 or 3,
The two plate members that have been butted together are placed on a gantry provided in the high-frequency dielectric heating device, and the tip of the first electrode provided in the high-frequency dielectric heating device is placed close to the V-groove portion. Then, a high-frequency current is applied in a state in which a part of the adhesive is filled between the V-groove part and the tip part of the first electrode while pressing the two plate members by pressing means. A method for producing a wall material for a corner, which comprises applying heat and bonding. In the manufacturing method of the wall surface material for corners of Claim 4,
When pressing the two plate members by the pressing unit, the vertical direction pressing unit that presses in the direction of the gantry and the left and right sides that press the butted portion of the two plate members from the lateral direction of the two plate members. A method of manufacturing a wall material for a corner, wherein the pressing is performed by a direction pressing means. In the manufacturing method of the wall surface material for corners of Claim 4 or 5,
A method for manufacturing a wall material for a corner, wherein an insulating tape is attached in advance to a tip portion of the first electrode.

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