JP2022177314A - Outside corner material manufacturing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a flat plate outside corner which is easier to pack than an L-shaped outside corner.

SOLUTION: The outside corner manufacturing device includes a step of preparing a first substrate 60, a step of preparing a second substrate 70, a step of preparing a third substrate 80, a bonding step of applying an adhesive to at least one of a one end 65 of the first substrate 60 and the other end 76 of the second substrate and bonding together the one end 65 of the first substrate 60 and the other end 76 of the second substrate 70, a bonding step of applying an adhesive to at least one of the other end 66 of the first substrate 60 and a one end 85 of the third substrate 80 and bonding together the other end 66 of the first substrate 60 and the one end 85 of the third substrate, and a cutting step of cutting at least one of the second substrate 70 and the third substrate 80 so as to align with a rear surface 62 of the first substrate 60.

SELECTED DRAWING: Figure 7

COPYRIGHT: (C)2023,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to an apparatus for manufacturing protruded corners.

It is known to manufacture an external corner member by cutting one end of a substrate into a spherical or multifaceted shape (Patent Document 1).

JP 2009-57807 A

In the method disclosed in Patent Literature 1, one end of the substrate is cut to form a corner.

Furthermore, in the method disclosed in Patent Document 1, since the corners of the protruding corner member are formed by cutting, there is a problem that the corners do not reflect the pattern of the outer surface of the substrate.

The method for manufacturing an external corner member of the present invention has a front surface, a rear surface, one end, the other end opposite thereto, another end, and another other end opposite thereto, and the one end has a first fitting. preparing a first substrate having a mating portion formed thereon, a second mating portion formed at the other end, and having the other end cut obliquely so that the front surface is longer than the back surface; It has a step, a front surface, a back surface, one end, the other end facing it, another end, and another other end facing it, and a first fitting part is formed at the one end, preparing a second substrate in which a second fitting portion is formed at the other end and the other end is obliquely cut so that the front surface is longer than the back surface; An adhesive is applied to at least one of the another end and the another end of the second substrate, and the other end of the first substrate and the another end of the second substrate are bonded together. and a cutting step of cutting the second substrate so as to align with the back surface of the first substrate. Another external corner member manufacturing method of the present invention has a front surface, a back surface, one end, the other end opposite to it, another end, and another end opposite to it, and the surface of the surface and a step of preparing a first substrate in which the angle formed by the surface of the another end is an acute angle and the angle formed by the surface of the front surface and the surface of the other end is an acute angle; , the other end opposite to it, another end, and another other end opposite to it, and preparing an acute angle between the surface of the surface and the other end. An angle formed by the surface of the front surface and the surface of the other end, having a step, a front surface, a back surface, one end, the other end opposed thereto, another end, and another end opposed thereto providing a third substrate having an acute angle; applying an adhesive to at least one of the another end of the first substrate and the other other end of the second substrate; a bonding step of bonding together one end and the other end of the second substrate; and applying an adhesive to at least one of the other end of the first substrate and the another end of the third substrate. a bonding step of applying and bonding the other end of the first substrate and the another end of the third substrate together; and cutting at least one of the third substrates.

According to an embodiment of the present invention, there is provided a method for manufacturing an external corner member, in which adhesive leaking out from a bonding portion between the other end of the first substrate and the other end of the second substrate is removed. A removal step may be included. According to another embodiment of the present invention, there is provided a method for manufacturing an external corner member, in which the adhesive that has leaked out from the bonding portion between the first substrate and the second substrate is removed, and the adhesive between the first substrate and the third substrate is removed. and a removing step of removing the adhesive that has leaked out from the part.

In one embodiment of the present invention, there is provided a method for manufacturing an external corner member, in which, in the removing step, when the adhesive is removed, a portion of the first substrate and a portion of the second substrate are also removed. may include According to another embodiment of the present invention, there is provided a method for manufacturing an external corner member, in which, in the removing step, when removing the adhesive, a portion of the first substrate and a portion of the second substrate are also removed, A removing step of removing both the portion of the first substrate and the portion of the third substrate may be included.

A method for manufacturing an external corner member in an embodiment of the present invention may include a coloring step of coloring the removed portions of the first substrate and the second substrate after the removing step. According to another embodiment of the present invention, there is provided a method for manufacturing an external corner member, wherein after the removing step, the removed portions of the first substrate and the second substrate and the removed portions of the first substrate and the third substrate A coloring step of coloring the part may be included.

In an embodiment of the present invention, in the method for manufacturing an external corner member, the color to be colored may be substantially the same as the color of the surface of the first substrate. In another embodiment of the method for manufacturing an external corner member of the present invention, the color to be colored may be substantially the same as the color of the surface of the first substrate.

In an embodiment of the present invention, in the cutting step, the bonded first substrate and the second substrate are transported, and a portion of the second substrate is cut by a cutter in a substantially horizontal plane. may be cut. According to another embodiment of the present invention, there is provided a method for manufacturing an external corner material, wherein in the cutting step, the bonded first substrate, the second substrate and the third substrate are conveyed, and the cutting is performed by a cutter in a substantially horizontal plane. At least one of a portion of the second substrate and a portion of the third substrate may be cut.

A manufacturing apparatus of the present invention is a manufacturing apparatus for cutting a part of the second substrate from an intermediate member having a first substrate and a second substrate, the manufacturing apparatus comprising: a first guide for guiding the first substrate; a second guide for guiding a substrate, a passage through which the intermediate member passes; a cutting device, a first feeding section that presses the first substrate against the first guide and transports it, and a second feeding section that presses the second substrate against the second guide and transports it. Another manufacturing apparatus of the present invention is a manufacturing apparatus for cutting a part of the second substrate and the third substrate from an intermediate member having the first substrate, the second substrate and the third substrate, wherein the first substrate , a second guide that guides the second substrate, and a third guide that guides the third substrate, a passage through which the intermediate member passes, a first cutter for cutting a part of the second substrate so as to align with the back surface of the first substrate on the surface to be cut; a second cutting device that cuts a part of the third substrate; a first feed unit that presses the first substrate against the first guide and transports it; and a second substrate that presses the second substrate against the second guide and transports it. A second sending section and a third sending section for pressing the third substrate against the third guide and conveying the substrate are provided.

In an embodiment of the manufacturing apparatus of the present invention, the first guide has a first notch portion and the second guide has a second notch portion in order to dispose the cutter. good. In another embodiment of the present invention, in order to dispose the first cutter, the first guide near the second guide has a first notch, and the second guide has a second cutout. a notch, and the first guide near the third guide has a third notch for locating the second cutter, and the third guide has a fourth notch may have

In an embodiment of the manufacturing apparatus of the present invention, the second feeding section may be arranged below the cutter. In another embodiment of the manufacturing apparatus of the present invention, the second feed section may be arranged below the first cutter, and the third feed section may be arranged below the second cutter.

In an embodiment of the manufacturing apparatus of the present invention, the cutter may be a circular saw. In another embodiment of the manufacturing apparatus of the present invention, the first and second cutters may be circular saws.

The method for manufacturing an external corner member of the present invention includes a cutting step of cutting the second substrate so as to align with the back surface of the first substrate. Therefore, the external corner material manufactured by the external corner material manufacturing method of the present invention has a plate shape and is easier to pack than the L-shaped external corner material. In addition, since the protruding corner strip manufactured by the protruding corner strip manufacturing method of the present invention has a plate-like shape, dead space is less likely to occur when packed in a box, compared to L-shaped protruding corner strips. In another external corner member manufacturing method of the present invention, the second substrate and the third substrate can be cut so as to align with the back surface of the first substrate. Therefore, the external corner material manufactured by another external corner material manufacturing method of the present invention has a plate-like shape and is easier to pack than the U-shaped external corner material. In addition, since the external corner material manufactured by the external corner material manufacturing method of the present invention has a plate-like shape, dead space is less likely to occur when packed in a box compared to the U-shaped external corner material.

The method for manufacturing an external corner member of the present invention includes a bonding step of bonding together another end of the first substrate and another end of the second substrate. For this reason, the external corner material manufactured by the external corner material manufacturing method of the present invention does not need to be shaped like the external corner material manufacturing method of Patent Document 1, so the external corner material manufacturing method of Patent Document 1 can be manufactured at a lower cost than The same applies to another method of manufacturing an external corner member of the present invention.

A method for manufacturing an external corner member in an embodiment of the present invention includes a removing step of removing adhesive that has leaked out from a bonding portion between another end of the first substrate and another end of the second substrate. is doing. For this reason, the external corner material manufactured by this external corner material manufacturing method does not cause adhesion failure due to insufficient adhesive. The same applies to the external corner material manufacturing method in another embodiment of the present invention.

In the method of manufacturing an external corner member according to an embodiment of the present invention, in the removing step, when removing the adhesive, a part of the first substrate and a part of the second substrate are also removed. For this reason, it is possible to remove in advance the corners of the protruding corner member that cause breakage. In addition, when removing the adhesive, it is not necessary to work so as not to damage the corners of the external corner material. You can increase your speed. The same applies to the external corner material manufacturing method in another embodiment of the present invention.

According to an embodiment of the present invention, the external corner material manufacturing method includes, after the removing step of removing the adhesive and the part of the first substrate and the second substrate, the removed part of the first substrate and the part of the second substrate. A coloring step of coloring the part is included. Therefore, it is possible to prevent the observer from feeling uncomfortable with the shaved portions of the first substrate and the second substrate. The same applies to the external corner material manufacturing method in another embodiment of the present invention.

In an embodiment of the present invention, the external corner material manufacturing method includes removing the removed portions of the first substrate and the second substrate after the removing step of removing the adhesive and the portion of the first substrate and the second substrate. A coloring step is included in which the first substrate and the second substrate are colored in substantially the same color. For this reason, the scraped portions of the first and second substrates look the same as the surfaces of the first and second substrates, increasing the commercial value of the external corner material. The same applies to the external corner material manufacturing method in another embodiment of the present invention.

In the method of manufacturing an external corner member according to an embodiment of the present invention, in the cutting step, the bonded first substrate and second substrate are transported, and a portion of the second substrate is cut by a cutter in a substantially horizontal plane.

If a part of the second substrate is cut in the vertical direction, the surface of the second substrate faces upward and the surface of the first substrate faces sideways, and the part cut by the weight of the first substrate and the principle of leverage is cut. Slightly increased, the cut portion of the second substrate remaining on the first substrate is cut deeper by the cutter at the end of cutting than at the beginning of cutting. However, if a portion of the second substrate is cut in the lateral direction, the cut surface of the second substrate bonded to the first substrate is cleanly and straightly cut.

In addition, when cutting a part of the second substrate in the horizontal direction, the surface of the first substrate faces upward and flows. can be used to sort out defective products.

In addition, when cutting a part of the second substrate in the horizontal direction, the surface of the first substrate faces upward and flows. Easy to work with. For example, when the manufacturer collects the cut protruding corners, the protrusive corners whose surface is facing upward can be picked up and moved. The same applies to the external corner material manufacturing method in another embodiment of the present invention.

The manufacturing apparatus of the present invention cuts a portion of the second substrate so as to align with the back surface of the first substrate on a plane normal to the vertical direction.

If a portion of the second substrate is cut in the vertical direction, the surface of the second substrate faces upward and the surface of the first substrate faces sideways, and the portion to be cut is small due to the weight of the first substrate and the principle of leverage. , the cut portion of the second substrate remaining on the first substrate is cut deeper by the cutter at the end of cutting than at the beginning of cutting. However, if a portion of the second substrate is cut in the lateral direction, the cut surface of the second substrate bonded to the first substrate is cleanly and straightly cut.

In addition, when cutting a part of the second substrate in the horizontal direction, the surface of the first substrate faces upward and flows, so the manufacturer checks the appearance of the surface of the large first substrate during the work. can be used to sort out defective products.

In addition, when cutting a part of the second substrate in the horizontal direction, the surface of the first substrate faces upward and flows. Easy to work with. For example, when the manufacturer collects the cut protruding corners, the protrusive corners whose surface is facing upward can be picked up and moved.

When the cutting device cuts a part of the second substrate on the back surface of the first substrate, if the intermediate member is guided by the first guide and the second guide in the vicinity of the cutting device, cutting can be performed with an error of 0. The cutter will cut a part of the second substrate, leading to the blade breakage of the cutter. However, the manufacturing apparatus in one embodiment of the present invention has a first guide having a first notch and a second guide having a second notch for locating the cutter. Therefore, in this manufacturing apparatus, the cutter does not contact the guide and the blade is not damaged. The same applies to another manufacturing apparatus of the present invention.

In one embodiment of the manufacturing apparatus of the present invention, the second feeding section is arranged below the cutter. Therefore, even if a strong force is applied to the second substrate, the surface of the protruding corner material as a product will not be damaged. In addition, since the second feed section presses the second substrate against the second guide under the cutter, the vibration generated by the cutter can be efficiently absorbed. The same applies to the manufacturing apparatus in another embodiment of the present invention.

In one embodiment of the manufacturing apparatus of the present invention, the cutter is a circular saw. Therefore, this manufacturing apparatus can have a simpler mechanism than a reciprocating saw. The same applies to the manufacturing apparatus in another embodiment of the present invention.

FIG. 1 is a flowchart showing a method for manufacturing an external corner member according to the first embodiment of the present invention. FIG. 2 is an external view showing an example of the first substrate 10 and the second substrate 20. As shown in FIG. FIG. 3 is a front view showing an example of an intermediate member 30 to which the first substrate 10 and the second substrate 20 are adhered. FIG. 4 is an external view showing an example of the intermediate member 40 from which the adhesive has leaked. FIG. 5 is a diagram for explaining an example of adhesive removal. FIG. 6 is a flowchart showing a method for manufacturing an external corner member according to the third embodiment of the present invention. FIG. 7(a) is a front view showing an example of a substrate from which the first substrate 60, the second substrate 70 and the third substrate 80 are cut out, and FIG. 7(b) shows the first substrate 60 and the second substrate 70 7(c) shows how the first substrate 60 and the third substrate 80 are bonded by the high frequency bonding machines 91 and 92. FIG. It is a figure for explaining. FIG. 8(a) is a diagram showing an example of an intermediate member 98 to which the first substrate 60, the second substrate 70 and the third substrate 80 are adhered, and FIG. 8(b) is a diagram showing the intermediate member 98 to the third substrate. is a diagram showing an example of an intermediate member 99 obtained by cutting a part of . FIG. 9 is a diagram showing an example of a manufacturing apparatus 100 according to the fourth embodiment of the invention. FIG. 10 is a schematic diagram showing an example of the positions of the first belt 151 and the second belt 161 in the manufacturing apparatus 100. As shown in FIG.

A method for manufacturing an external corner member according to the first embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a flowchart showing a method for manufacturing an external corner member according to the first embodiment of the present invention. 2 is an external view showing an example of the first substrate 10 and the second substrate 20. As shown in FIG.

The manufacturer prepares the first substrate 10 and the second substrate 20 as shown in FIG. 2 (step S10). The first substrate 10 and the second substrate 20 may be cut out from one substrate. The substrate has a surface 11, 21, a back surface 12, 22, one end 13, 23, the other end 14, 24 opposite the one end 13, 23, another end 15, and the other end 15. It has another other end 26 that connects. The portion sandwiched between the other end 16 and the other end 25 is a portion cut off when the first substrate 10 and the second substrate 20 are cut out.

A first fitting portion may be formed at one end 13, 23 of the substrates to connect the substrates together. Also, second fitting portions may be formed at the other ends 14 and 24 of the substrates to connect the substrates together. In that case, the first fitting portion of one substrate can be fitted with the second fitting portion of the other substrate.

As the shape of the fitting portion, a jagged shell or a real shell may be used. For example, the front surface of the substrate may be longer than the back surface of the substrate near one end of the substrate, and the front surface of the substrate may be shorter than the back surface of the substrate near the other end of the substrate. Also, a convex portion may be provided at one end of the substrate and a concave portion may be provided at the other end of the substrate.

The main material of the substrate may be a cementitious material. Additionally, the substrate may include at least one of a fibrous material and an admixture. When the substrate contains fibrous material, the strength of the substrate can be increased as compared with a substrate not containing fibrous material. As the admixture, it is preferable to use one having a lighter specific gravity than sand or gravel.

A pattern may be formed on the surface of the substrate. Also, this pattern may be formed by providing unevenness on the surface of the substrate. The surface of the substrate may be colored.

The first substrate 10, as shown in FIG. 2, has a front surface 11, a back surface 12, one end 13, the opposite end 14, another end 15, and another opposite end 16. is doing. One end 13 may be formed with a first fitting portion (specific shape not shown), and the other end 14 may be formed with a second fitting portion (specific shape not shown). may be Another other end 16 is obliquely cut so that the front surface 11 is longer than the back surface 12 . The angle formed by the face of the surface 11 and the face of the other end 16 is acute, but may be approximately 45 degrees. The angle formed by the plane of the surface 11 and the plane of the other end 15 may be approximately 90 degrees. The angle formed by the surface of the back surface 12 and the surface of the other end 15 may be approximately 90 degrees. The angle formed by the surface of the back surface 12 and the surface of the other end 16 is an obtuse angle, but may be approximately 135 degrees. Although the front surface 11 may have irregularities, the front surface 11 and the back surface 12 are substantially parallel as shown in FIGS.

The second substrate 20, as shown in FIG. 2, has a front surface 21, a back surface 22, one end 23, the opposite end 24, another end 25, and another opposite end 26. is doing. One end 23 may be formed with a first fitting portion (specific shape not shown), and the other end 24 may be formed with a second fitting portion (specific shape not shown). may be Another end 25 may be cut obliquely so that the front surface 21 is longer than the back surface 22 . The angle formed by the plane of the surface 21 and the plane of the other end 25 is acute, but may be approximately 45 degrees. Also, the angle formed by the surface of the surface 21 and the surface of the other end 26 may be approximately 90 degrees. Also, the angle formed by the surface of the back surface 22 and the surface of the other end 26 may be approximately 90 degrees. The angle formed by the surface of the back surface 22 and the surface of the other end 25 is an obtuse angle, but may be approximately 135 degrees. Although the surface 21 may have unevenness, the surfaces of the surface 21 and the surface of the back surface 22 are substantially parallel as shown in FIGS. Moreover, the sum of the angle formed by the surface 11 and the other end 16 and the angle formed by the surface 21 and the other end 25 is preferably approximately 90 degrees. When using the external corner material manufactured by the manufacturing method of the external corner material in the first embodiment to cover the outer wall near the external corner of the building, the surface 21 of the external corner material is orthogonal to the external corner material. This is because it can be made substantially flush with the surface of the other exterior wall materials in the building, and the appearance of the building can be improved.

The manufacturer may prepare a saw, a cutter, or the like inclined at an acute angle counterclockwise from the back surface in order to cut out the first substrate 10 and the second substrate 20 from the substrate. When the manufacturer cuts the first substrate by pushing the substrate from the front and away from the body, the cut begins at the other end 14 and ends at the one end 13 . Also, when the manufacturer cuts out the second substrate by pressing the substrate from the front in the direction away from the body, the cutting starts from the other end 23 and ends at the one end 24 . This acute angle may be approximately 45 degrees.

The manufacturer may prepare a saw, a cutter, or the like inclined at an obtuse angle counterclockwise from the back surface in order to cut out the first substrate 10 and the second substrate 20 from the substrate. When the manufacturer cuts the first substrate by pressing the substrate from the front and away from the body, the cut begins at one end 13 and ends at the other end 14 . Also, when the manufacturer cuts out the second substrate by pressing the substrate from the front in the direction away from the body, cutting starts from one end 24 and ends at the other end 23 . This obtuse angle may be approximately 135 degrees.

In order to cut out the first substrate 10 and the second substrate 20 from the substrate substantially at the same time, the manufacturer uses a saw or a cutter inclined at an acute angle in the counterclockwise direction from the back surface and an obtuse angle in the counterclockwise direction from the back surface. You may prepare a saw, a cutter, etc. inclined to the direction. When the manufacturer cuts out the first substrate and the second substrate by pressing the substrate from the front in a direction away from the body, cutting starts from the other end 14 of the first substrate and ends at one end 13 of the first substrate, and then cuts the second substrate. Cutting starts from one end 24 and ends at the other end 23 of the second substrate. This acute angle may be approximately 45 degrees. This obtuse angle may be approximately 135 degrees.

After preparing the first substrate 10 and the second substrate 20, the first substrate 10 and the second substrate 20 are bonded (step S20). For example, the other end 16 of the first substrate 10 and the other end 25 of the second substrate 20 are coated with an adhesive, the surfaces thereof are overlapped, and at least the surface 11 of the first substrate 10 and the second substrate 20 are bonded together. This may be done by applying force to the front surface 21 of the first substrate 10 and supporting the rear surface 22 of the second substrate 20 so that the rear surface 12 of the first substrate 10 and the rear surface 22 of the second substrate 20 are not misaligned.

Before the adhesive is applied to the other end 16 of the first substrate 10 and the other end 25 of the second substrate 20, the other end 16 of the first substrate 10 and the second substrate 20 are separated. Another end 25 may be subjected to a pretreatment such as a primer treatment.

After the adhesive is applied to the other end 16 of the first substrate 10 and the other end 25 of the second substrate 20, a high frequency voltage is applied to the bonding surfaces by a high frequency bonding machine to increase the bonding speed. You can speed it up. In that case, a urethane-based adhesive may be used as the adhesive.

Alternatively, the first substrate 10 and the second substrate 20 may be bonded by natural curing without using a machine such as a high-frequency bonding machine. In that case, as the adhesive, a polyurethane-based adhesive, a urethane-based adhesive, or an epoxy-based adhesive may be applied to the adhesive surface.

FIG. 3 is a diagram showing an example of an intermediate member 30 to which the first substrate 10 and the second substrate 20 are adhered. When the intermediate member 30 is viewed from the other end (reference numeral 14 in FIG. 2) of the first substrate, the intermediate member 30 is substantially L-shaped.

In order to form the protruding corner material, the second substrate 20 is cut so as to be aligned with the rear surface 12 of the first substrate 10 (step S30). For example, a portion of the second substrate 20 is cut along the dashed line 27 with a saw, a cutter, or the like. The cut portion includes another end 26 .

A method for manufacturing an external corner member according to the second embodiment of the present invention will be described below with reference to the drawings.

FIG. 4 is an external view showing an example of an intermediate member 40 to which the first substrate 10 and the second substrate 20 are adhered.

In the intermediate member 40 , the adhesive 41 comes out from the adhesive surfaces of the first substrate 10 and the second substrate 20 to the surfaces of the first substrate 10 and the second substrate 20 . It is preferable to apply an appropriate amount of the adhesive so that the adhesive does not overflow from the adhesive surfaces of the first substrate 10 and the second substrate 20. The strength for bonding the substrate 20 is reduced. For this reason, the adhesive is applied to the adhesive surface more than the appropriate amount, and the intermediate member 40 shown in FIG. 4 can be formed.

In this case, it is preferable to provide a removing step of removing the adhesive 41 on the surface of the intermediate member 40 between step S20 and step S30 or after step S30. This is to improve the appearance of the finished protruding corner material.

In addition, if the adhesive is coming out from the adhesive surfaces of the first substrate 10 and the second substrate 20 to the back surfaces of the first substrate 10 and the second substrate 20, the back surface of the intermediate member 40 is removed between steps S20 and S30. It is preferable to provide a removing step for removing the adhesive at the end. This is because a part of the second substrate 20 is cleanly cut by a manufacturing apparatus which will be described later.

FIG. 5 is a diagram for explaining an example of adhesive removal.

When the manufacturer removes the adhesive 51 on the surface of the intermediate member 50, as shown in FIG. may In other words, the L-shaped corners of intermediate member 50 may be chamfered. This is because it is difficult to remove only the adhesive protruding from the connecting portion between the first substrate 10 and the second substrate 20 . The L-shaped corner of the intermediate member 50 is made up of the sharp portion 17 of the first substrate 10 and the sharp portion 27 of the second substrate 20, and the adhesive on the surface of the intermediate member 50 is cleanly removed by cutting or the like. In this case, if the cutting is performed as deeply as possible, the tip portions 17 and 27 may be chipped, and the external corner member, which is the final finished product, will have a poor appearance. Also, when removing the adhesive 52 on the back surface of the intermediate member 50 , the manufacturer does not need to be as careful as removing the adhesive 51 on the front surface of the intermediate member 50 .

For this reason, the L-shaped corner of the intermediate member 50 is chamfered, and the sharp portion 17 of the first substrate 10 and the sharp portion 27 of the second substrate 20 are shaved off to prevent damage that deteriorates the appearance. can do. In the example shown in FIG. 5, the straight line distance from the apex of the L-shaped corner of the intermediate member 50 to the boundary between the cut portion and the non-cut portion of the first substrate 10 at the pointed portion 17 is 2 mm. 5 mm, and the linear distance from the apex of the L-shaped corner of the intermediate member 50 to the boundary between the machined portion and the non-machined portion of the second substrate 20 at the pointed portion 27 is It may be 2 mm to 5 mm, and the straight line 55 (actually one surface) is chamfered, but it is not limited to this. The chamfer may consist of multiple lines (actually multiple planes). The chamfered portion may be configured in an arc shape (actually a curved surface). Also, the length of the linear shape 55 may be 2 mm to 7 mm.

When removing a part of the surface of the first substrate 10 and a part of the surface of the second substrate 20 together with the adhesive, after the removal (before or after step S30), the scraped part is colored. may be The color to be colored is preferably substantially the same color as that of the first substrate 10 and the second substrate 20 .

A method for manufacturing an external corner member according to the third embodiment of the present invention will be described below with reference to the drawings.

FIG. 6 is a flowchart showing a method for manufacturing an external corner member according to the third embodiment of the present invention. FIG. 7 is a diagram of the intermediate member for explaining an example of the method of manufacturing the protruding corner member.

The manufacturer prepares the first substrate 60, the second substrate 70 and the third substrate 80 as shown in FIG. 7A (step S110). The first substrate 60, the second substrate 70 and the third substrate 80 may be cut out from one substrate (FIG. 7(a)). The substrate has a surface 61, 71, 81, a back surface 62, 72, 82, one end 63, 73, 83, the other end opposite the one end 63, 73, 83, another end 75, the other end 75 and another end 86, and the length of the substrate in the lateral direction (hereinafter referred to as the X direction) of the front view shown in FIG. 7(a) may be 200 mm to 450 mm. Also, the depth of the substrate may be 400 mm to 500 mm. Also, the thickness of the substrate may be 15 mm to 20 mm.

A first fitting portion may be formed at one end 63, 73, 83 of the substrates to connect the substrates together, as in the first embodiment. In order to connect the boards together, a second fitting portion may be formed at the other end facing the one ends 63, 73, 83 of the boards, as in the first embodiment. Also, the material of the substrate may be the same as in the first embodiment. A pattern may be formed on the surface of the substrate. Also, this pattern may be formed by providing unevenness on the surface of the substrate. The surface of the substrate may be colored.

As shown in FIG. 7A, the first substrate 60 has a front surface 61, a rear surface 62, one end 63, the other end opposite thereto, another end 65, and another end 66 opposite thereto. have. In the first substrate 60, one end 63 may be formed with a first fitting portion (specific shape not shown), and the other end may be formed with a second fitting portion (specific shape not shown). not shown) may be formed. Another end 65 and another other end 66 may be cut obliquely so that the length of the surface 61 in the X direction is longer than the length of the back surface 62 . The angle formed by the plane of the surface 61 and the plane of the other end 65 may be an acute angle. The angle formed by the plane of the surface 61 and the plane of the other end 66 may be an acute angle. Also, the angle formed by the surface of the back surface 62 and the surface of the other end 65 may be an obtuse angle. Also, the angle formed by the surface of the back surface 62 and the surface of the other end 66 may be an obtuse angle. These acute angles may be approximately 45 degrees. Also, these obtuse angles may be approximately 135 degrees.

As shown in FIG. 7A, the second substrate 70 has a front surface 71, a back surface 72, one end 73, the other end opposite thereto, another end 75, and another end 76 opposite thereto. have. In the second substrate 70, one end 73 may be formed with a first fitting portion (specific shape not shown), and the other end may be formed with a second fitting portion (specific shape not shown). not shown) may be formed. Another other end 76 may be cut obliquely so that the length of the front surface 71 in the X direction is longer than the length of the back surface 72 . The angle formed by the plane of the surface 71 and the plane of the other end 75 may be approximately 90 degrees. The angle formed by the plane of the surface 71 and the plane of the other end 76 may be an acute angle. Also, the angle formed by the surface of the back surface 72 and the surface of the other end 75 may be approximately 90 degrees. Also, the angle formed by the surface of the back surface 72 and the surface of the other end 76 may be an obtuse angle. This acute angle may be approximately 45 degrees. Also, this obtuse angle may be approximately 135 degrees. For the same reason as in the first embodiment, the sum of the angle formed by the surface 61 and the other end 65 and the angle formed by the surface 71 and the other end 76 is approximately 90 degrees. is preferred.

As shown in FIG. 7A, the third substrate 80 has a front surface 81, a back surface 82, one end 83, the other end opposite thereto, another end 85, and another end 86 opposite thereto. have. In the third substrate 80, one end 83 may be formed with a first fitting portion (specific shape not shown), and the other end may be formed with a second fitting portion (specific shape not shown). not shown) may be formed. Another end 85 may be cut obliquely so that the length of the front surface 81 in the X direction is longer than the length of the back surface 82 . The angle formed by the plane of the surface 81 and the plane of the other end 85 may be an acute angle. The angle formed by the plane of the surface 81 and the plane of the other end 86 may be approximately 90 degrees. Also, the angle formed by the surface of the back surface 82 and the surface of the other end 85 may be an obtuse angle. Also, the angle formed by the surface of the back surface 82 and the surface of the other end 86 may be approximately 90 degrees. This acute angle may be approximately 45 degrees. Also, this obtuse angle may be approximately 135 degrees. For the same reason as in the first embodiment, the sum of the angle formed by the surface 61 and the other end 66 and the angle formed by the surface 81 and the other end 85 is approximately 90 degrees. is preferred.

When cutting out the second substrate 70 from one substrate, the manufacturer forms another end 76 by using, for example, a circular saw blade inclined at an acute angle counterclockwise from the X direction of the substrate, The second substrate 20 may be cut out from that substrate. This acute angle may be approximately 45 degrees.

When the manufacturer cuts out the first substrate 60 after cutting out the second substrate 70 with a circular saw blade inclined approximately 45 degrees counterclockwise from the X direction of the substrate, the manufacturer cuts out the X direction of the substrate, for example. Another end 65 is formed by a circular saw blade inclined at an obtuse angle counterclockwise from the X direction of the substrate, and another end 66 is formed by a circular saw blade inclined at an acute angle counterclockwise from the X direction of the substrate. By doing so, the first substrate 60 may be cut out. This obtuse angle may be approximately 135 degrees. Also, the acute angle may be approximately 45 degrees.

When cutting out the third substrate 80, for example, the manufacturer forms another end 85 with a blade of a circular saw inclined at an obtuse angle counterclockwise from the X direction of the substrate, and the third substrate 80 is cut out. good. This obtuse angle may be approximately 135 degrees.

In the above example, the first substrate 60, the second substrate 70, and the third substrate 80 are cut out in this order. Each may be cut out in the order of two substrates 70 . Also, the first substrate 60, the second substrate 70 and the third substrate 80 may be cut out in the same manner as in the first embodiment.

After preparing the first substrate 60, the second substrate 70 and the third substrate 80, the first substrate 60 and the second substrate 70 are bonded (step S120). For example, an adhesive is applied to another end 65 of the first substrate 60 and another other end 76 of the second substrate 70, and the surfaces thereof are overlapped so that at least the surface 61 of the first substrate 60 and the second substrate 70 are bonded together. This may be done by applying force to the front surface 71 of the first substrate 60 and supporting the rear surface 72 of the second substrate 70 so as not to be misaligned.

After bonding the first substrate 60 and the second substrate 70, the first substrate 60 and the third substrate 80 are bonded (step S122). For example, the other end 66 of the first substrate 60 and the other end 85 of the third substrate 80 are coated with an adhesive, the surfaces thereof are overlapped, and at least the surface 61 of the first substrate 60 and the third substrate 80 are bonded together. This may be done by applying a force to the front surface 81 of the first substrate 60 and supporting the rear surface 82 of the third substrate 80 so that the rear surface 62 of the first substrate 60 and the third substrate 80 are not misaligned.

Also, before the adhesive is applied to the other end 65 of the first substrate 60 and the other end 76 of the second substrate 70, another end 65 of the first substrate 60 and another end 76 of the second substrate 70 are separated. The other end 76 of the may be subjected to a pretreatment such as a primer treatment. Similarly, before the adhesive is applied to the other end 66 of the first substrate 60 and the other end 85 of the third substrate 80, the other end 66 of the first substrate 60 and the third substrate 80 are separated. Another end 85 of the may be subjected to a pretreatment such as a primer treatment.

As shown in FIGS. 7(b) and (c), the first substrate 60, the second substrate 70, and the third substrate 80 may be bonded by a high frequency bonding machine. When the respective substrates are bonded by a high-frequency bonding machine, a urethane-based adhesive may be applied to the bonding surface as the adhesive. For example, by applying a high-frequency voltage to the electrodes 91 and 92 of a high-frequency bonding machine, bonding can be performed in a short time compared to natural curing.

However, the first substrate 60, the second substrate 70, and the third substrate 80 may be bonded by natural curing without using a machine such as a high-frequency bonding machine. In that case, as the adhesive, a polyurethane-based adhesive, a urethane-based adhesive, or an epoxy-based adhesive may be applied to the adhesive surface. In the case of natural curing, there is no need to equip equipment such as a high-frequency welder.

FIG. 8(a) is a diagram showing an example of an intermediate member 98 to which the first substrate 60, the second substrate 70 and the third substrate 80 are adhered, and FIG. 8(b) is a diagram showing the intermediate member 98 to the third substrate. It is a figure which shows an example of the intermediate member 99 which cut|disconnected a part of 80. FIG. The intermediate member 98 is substantially U-shaped.

One of the second substrate 70 and the third substrate 80 is cut from the intermediate member 98 so as to be aligned with the rear surface 62 of the first substrate 60 to form the intermediate member 99 (step S130). In the example shown in FIG. 8A, a portion of the third substrate 80 is cut along the dashed line 95 with a saw, a cutter, or the like. The cut portion includes another end 86 .

Next, in order to form an external corner member, the other of the second substrate 70 and the third substrate 80 is cut from the intermediate member 99 so as to be aligned with the back surface 62 of the first substrate 60 (step S132). In the example shown in FIG. 8B, a portion of the second substrate 70 is cut along the dashed line 96 with a saw, a cutter, or the like. The cut portion includes another end 75 .

In the manufacturing process of the external corner material in the third embodiment, the adhesive may be removed in the same manner as in the manufacturing process of the external corner material in the above-described second embodiment.

A manufacturing apparatus according to a fourth embodiment of the present invention will be described below with reference to the drawings.

FIG. 9 is a diagram showing an example of the manufacturing apparatus 100 for cutting part of the second substrate 20 in step S30.

The manufacturing apparatus 100 according to the fourth embodiment of the present invention has a first guide 110 that guides the first substrate 10 and a second guide 120 that guides the second substrate 20, and a passage portion 130 through which the intermediate member 30 passes. , a cutter 140 that cuts a portion of the second substrate 20 so as to align with the back surface of the first substrate 10 on a plane normal to the vertical axis, and the first substrate 10 is pressed against the first guide 110 and conveyed. and a second sending unit 160 that presses the second substrate 20 against the second guide 120 and conveys it.

The first guide 110 is configured to reduce friction when the intermediate member 30 moves through the manufacturing apparatus 100 . For example, the first guide 110 may be formed by multiple rollers.

Similarly, second guide 120 is configured to reduce friction as intermediate member 30 moves through manufacturing apparatus 100 . For example, the second guide 120 may be formed by multiple rollers.

Cutter 140 may be a saw. If the cutter 140 is a saw, it preferably has a rotary motion rather than a reciprocating motion. This is because there is no need to convert the rotary motion from a power source such as a motor into reciprocating motion once.

In addition, since the cutter 140 can cut a part of the second substrate 20 so as to be aligned with the rear surface 12 of the first substrate 10 on a plane normal to the substantially vertical axis, in other words, a substantially horizontal plane, effect.

For example, when the circular saw rotates vertically like a normal circular saw and cuts a part of the second substrate 20 in the vertical direction, the surface 21 of the second substrate 20 faces upward and the surface 11 of the first substrate 10 faces upward. flows sideways. The size of the first substrate is larger than the size of the second substrate, and the first substrate is heavier than the second substrate. Due to the weight of the first substrate 10 and the principle of leverage, the first substrate 10 is slightly separated from the cutting part, and the cut portion of the second substrate 20 on the side of the first substrate 10 is slightly increased. The remaining cut portion of the second substrate 20 is cut deeper by the cutter 140 at the end of cutting than at the beginning of cutting. However, if a portion of the second substrate 20 is cut in the horizontal direction as in the fourth embodiment, the above change is slight because the second substrate is lighter than the first substrate.

In addition, when cutting a part of the second substrate 20 in the horizontal direction, the surface 11 of the first substrate 10 faces upward and flows, so the manufacturer is required to check the appearance of the surface 11 of the first substrate 10, which has a large area. You can work while checking, and you can sort out defective products.

Further, when cutting a portion of the second substrate 20 in the horizontal direction, the surface 11 of the first substrate 10 faces upward and flows. It is easier to work than when it comes. For example, when the manufacturer collects the cut pro-corners, the pro-corner with the front surface 11 of the first substrate 10 facing upward can be picked up and moved. However, when cutting a portion of the second substrate 20 in the horizontal direction, it is necessary to pick up and move the protruding corner member whose surface is facing sideways. In order to perform the work accurately, it is necessary to hold the protruding corner with both hands. The conditions must be repeated, which imposes a burden on the manufacturer.

A case where the cutter 140 is a circular saw will be described below. The cutter 140 is rotated by a motor 141 . The manufacturing apparatus 100 may include a mechanism capable of changing the position of the cutter 140 . For example, motor 141 can move up and down along rails 142 . Also, the rail 142 is attached to a pedestal 143 . Pedestal 143 can move away from or toward first guide 110 or second guide 120 by means of mechanism 144 .

The first sending unit 150 presses the first substrate 10 against the first guide 110 and conveys the intermediate member 30 . The first feeding section 150 may have a ring-shaped first belt 151 and a first motor 152 . As the first motor 152 rotates, the first belt 151 rotates and the intermediate member 30 is transported.

Also, the second sending unit 160 presses the second substrate 20 against the second guide 120 and conveys the intermediate member 30 . The second feeding section 160 may have a loop-shaped second belt 161 and a second motor 162 . As the second motor 162 rotates, the second belt 161 rotates and the intermediate member 30 is conveyed. Since the second feeding unit 160 presses the second substrate 20 against the second guide 120, the cut surface of the second substrate 20 on the side of the first substrate 10 hardly fluctuates, and the second substrate 20 is bonded to the first substrate 10. The cut surface of the second substrate 20 is cleanly cut straight.

FIG. 10 is a schematic diagram showing an example of the positions of the first belt 151 and the second belt 161 in the manufacturing apparatus 100. As shown in FIG. In FIG. 10, only the portions of the first belt 151 and the second belt 161 that press the intermediate member 30 against the first guide 110 and the second guide 120 are shown, and the motors and the like are not shown. are omitted.

The intermediate member 30 is conveyed from left to right in FIG. The intermediate member 30 is sandwiched between the first belt 151 and the first guide 110 and further sandwiched between the second belt 161 and the second guide 120 to move. When the intermediate member 30 is conveyed from the left side to the right side in FIG. 10, the cutter 140 rotates counterclockwise.

The first guide 110 has a notch 111 near the cutter 140 . Similarly, the second guide 120 has a notch 121 near the cutter 140 . When the cutter 140 cuts a part of the second substrate 20 on the back surface 12 of the first substrate 10 , the first guide 110 and the second guide 120 guide the intermediate member 30 near the cutter 140 . If this is the case, the cutter 140 cuts a part of the second substrate 20 with an error of 0, which leads to the blade breakage of the cutter 140 . Therefore, notches 111 and 121 are provided near the cutter 140 .

Note that the notch portion 111 may be provided over the entire range of the first guide 110 . Similarly, the notch 121 may be provided over the entire range of the second guide 120 . At the corner between the back surface 12 of the first substrate 10 and the back surface 22 of the second substrate 20, there is a possibility of poor removal of the adhesive or excessive cutting when removing the attached adhesive. This is because it is not preferable to convey the intermediate member with that corner as a reference unless the adhesive leaking out from the corner is removed.

In addition, in order to cut a part of the second substrate 20 on the surface of the back surface 12 of the first substrate 10, the intermediate member 30 must be positioned in the rotation axis direction of the cutter 140 and the rotation axis direction of the cutter 140. It is necessary to hold down the intermediate member 30 so that it does not move in a direction 180 perpendicular to the traveling direction of the intermediate member 30 . For this reason, the first feeding section 150 presses the front surface 11 of the first substrate 10 against the first guide 110 with the first belt 151 so that the cutter 140 does not sway in the rotation axis direction. In addition, since the main vibration source that vibrates the intermediate member 30 in the vertical direction is the cutting device 140 , the first belt 151 may push the first guide 110 near the notch 111 via the intermediate member 30 . preferable. Also, the length of the portion of the first belt 151 that presses the intermediate member 30 may be longer than the diameter of the circular saw.

Similarly, the second feeding unit 160 presses the surface 21 of the second substrate 20 against the second guide 120 with the second belt 161 so as not to move in the direction 180 . In addition, since the main vibration source that vibrates the intermediate member 30 in the direction 180 is the cutter 140 , the second belt 161 may push the second guide 120 near the notch 121 via the intermediate member 30 . preferable. Also, the length of the portion of the second belt 161 that presses the intermediate member 30 may be longer than the diameter of the circular saw. Also, the length of the portion of the first belt 151 that presses the intermediate member 30 may be substantially the same as the length of the portion of the second belt 161 that presses the intermediate member 30 .

Also, the second belt 161 is arranged below the cutter 140 . In other words, the second belt 161 is arranged far from the first substrate 10 via the cutter 140 in the second guide 120 . Therefore, even if the second belt 161 presses the second substrate 20 against the second guide 120 very strongly, the surface of the protruding corner member as a product is not damaged.

Cutter 140 may be covered with a metal cover. This is to prevent the manufacturer from injuring himself with the cutter 140 . Also, the cover may be connected to a suction duct for sucking shavings of the substrate or the like. This is to prevent shavings and the like from accumulating in the cover and impairing the rotation of the cutter 140 . Moreover, when providing a suction duct in the cover, it is preferable to further provide a suction duct in the cover. This is because the manufacturer may injure the body with the cutting device 140 simply by making an air intake hole in the cover. Also, by providing an intake duct, the suction force can be increased.

Although the operation of the manufacturing apparatus 100 has been described using the intermediate member 30, instead of the intermediate member 30, a member obtained by removing the adhesive 41 from the intermediate member 40 as described above and the tip portions 17 and 27 from the intermediate member 50 are used. Even if a member or the like from which 51 and 52 are removed is used, an external corner member can be manufactured.

In addition, a part of the second substrate 70 or the third substrate 80 is removed by flowing the intermediate member 98 or a member from which at least one of the adhesive protruding from the corners of the front surface and the corners of the back surface is removed from the intermediate member 98 through the manufacturing apparatus 100. may be cut. Similarly, the intermediate member 99 or a member from which at least one of the adhesive protruding from the corners of the front surface and the corners of the back surface is removed is passed through the manufacturing apparatus 100, and the second feeding section 160 moves the third substrate 80 to the second guide. A portion of the third substrate 80 may be cut by pressing it against 120 . Further, when a portion of the third substrate 80 is cut first from the intermediate member 98 , a portion of the second substrate 70 may be cut by the manufacturing apparatus 100 thereafter.

The manufacturing apparatus 100 includes a third guide that guides the third substrate 80 , a third feeding unit that presses the third substrate 80 against the third guide and conveys the third substrate 80 , and the third substrate 80 that is aligned with the back surface of the first substrate 60 . A second cutter for cutting the part may be further provided. Also, the third guide, the third feeder and the second cutter may be arranged substantially opposite the second guide 120 , the second feeder 160 and the cutter 140 with the passage 130 interposed therebetween. In this way, if the manufacturing apparatus 100 further includes a third guide, a third feeding section, and a second cutter, a portion of the second substrate 70 and a portion of the second substrate 70 can be cut by simply passing the intermediate member 98 through the apparatus once. A portion of the third substrate 80 can be cut. In this way, even if the manufacturing apparatus 100 further includes the third guide, the third feeder, and the second cutter, at least one of the adhesive protruding from the corners on the front surface and the corners on the back surface of the intermediate member 98 is removed. It goes without saying that a part of the second substrate 70 and a part of the third substrate 80 can be cut from the member from which the .

When the manufacturing apparatus 100 is equipped with a second cutter, the first guide has a third notch similar to the notch 111 in the vicinity of the second cutter for arranging the second cutter, Preferably, the third guide has a fourth notch near the second cutter similar to notch 121 of the second guide. This is to prevent the blade of the second cutting device from being damaged.

Moreover, when the manufacturing apparatus 100 is provided with a second cutter, it is preferable that the third feeding section is arranged below the second cutter. Therefore, since the third feeding section presses the third substrate against the third guide under the second cutter, the vibration generated by the cutter can be efficiently absorbed.

The second cutter may be a circular saw. This is because the mechanism can be simpler than a reciprocating saw.

10, 60 first substrate 20, 70 second substrate 80 third substrate 11, 21 front surface 12, 22 back surface 13, 23 one end 14, 24 other end 15, 25 another end 16, 26 another other end 30, 40 intermediate MEMBER 100 MANUFACTURING APPARATUS 110 FIRST GUIDE 120 SECOND GUIDE 130 PASSAGE PORTION 140 CUTTER 150 FIRST SENDER 160 SECOND SENDER

Claims (10)

It has a front surface, a back surface, one end, the other end opposed thereto, another end, and another end opposed thereto, and the angle formed by the surface of the front surface and the surface of the another end is an acute angle. a step of preparing a first substrate having an acute angle formed by the surface of the surface and the surface of the other end;
It has a front surface, a back surface, one end, the other end opposed thereto, another end, and another end opposed thereto, and the angle formed by the surface of the surface and the surface of the other end is an acute angle. a step of preparing a second substrate which is
It has a front surface, a back surface, one end, the other end opposed thereto, another end, and another end opposed thereto, and the angle formed by the surface of the front surface and the surface of the another end is an acute angle. providing a third substrate;
applying an adhesive to at least one of the other end of the first substrate and the other end of the second substrate; A bonding step of bonding together
applying an adhesive to at least one of the other end of the first substrate and the another end of the third substrate; and applying an adhesive to the other end of the first substrate and the another end of the third substrate A bonding step of bonding together
a cutting step of cutting the second substrate and the third substrate so as to align with the back surface of the first substrate. It has a front surface, a back surface, one end, the other end opposed thereto, another end, and another end opposed thereto, and the angle formed by the surface of the front surface and the surface of the another end is an acute angle. a step of preparing a first substrate having an acute angle formed by the surface of the surface and the surface of the other end;
It has a front surface, a back surface, one end, the other end opposed thereto, another end, and another end opposed thereto, and the angle formed by the surface of the surface and the surface of the other end is an acute angle. a step of preparing a second substrate which is
It has a front surface, a back surface, one end, the other end opposed thereto, another end, and another end opposed thereto, and the angle formed by the surface of the front surface and the surface of the another end is an acute angle. providing a third substrate;
applying an adhesive to at least one of the other end of the first substrate and the other end of the second substrate; A bonding step of bonding together
applying an adhesive to at least one of the other end of the first substrate and the another end of the third substrate; and applying an adhesive to the other end of the first substrate and the another end of the third substrate A bonding step of bonding together
a first cutting step of cutting one of the second substrate and the third substrate so as to align with the back surface of the first substrate;
a second cutting step of cutting the other of the second substrate and the third substrate so as to align with the back surface of the first substrate. In the cutting step, the first substrate, the second substrate, and the third substrate that are bonded are conveyed, and a portion of the second substrate is cut by a first cutter in a substantially horizontal plane. 2. The method of manufacturing an external corner member according to claim 1, wherein a part of the third substrate is cut by a second cutter at . In the first cutting step, a portion of the second substrate is cut by a first cutter in a substantially horizontal plane;
3. The method of manufacturing an external corner member according to claim 2, wherein in the second cutting step, a second cutter cuts a portion of the third substrate in a substantially horizontal plane. In the cutting step, a first feeder presses the first substrate against a first guide, a second feeder presses the second substrate against a second guide, and a third feeder presses the third substrate against a third guide. a first cutter cuts the second substrate so as to align with the back surface of the first substrate, and a second cutter cuts the second substrate so as to align with the back surface of the first substrate. The method for manufacturing the plate-shaped protruding corner material according to claim 1. In the first cutting step, a first feeder presses the first substrate against a first guide, a second feeder presses the second substrate against a second guide and conveys the first substrate, and a first cutter presses the first substrate. cutting the second substrate so as to align with the back surface of
In the second cutting step, a first feeder presses the first substrate against a first guide, a third feeder presses the third substrate against a third guide and conveys the third substrate, and a second cutter presses the first substrate. 3. The method of manufacturing a plate-shaped external corner member according to claim 2, wherein the third substrate is cut so as to be aligned with the back surface of the plate. a removing step of removing the adhesive that has leaked out from the bonding portion between the first substrate and the second substrate, and removing the adhesive that has leaked out from the bonding portion between the first substrate and the third substrate; The method for manufacturing an external corner material according to any one of claims 1 to 6, comprising In the removing step, when removing the adhesive, a part of the first substrate and a part of the second substrate are also removed, and a part of the first substrate and a part of the third substrate are removed. 8. The method for manufacturing an external corner material according to claim 7, wherein the removal is performed including 9. The method according to claim 8, further comprising a coloring step of coloring the removed portions of the first substrate and the second substrate and the removed portions of the first substrate and the third substrate after the removing step. The protruding corner material manufacturing method. 10. The method of manufacturing an external corner member according to claim 9, wherein the color to be colored is substantially the same as the color of the surface of the first substrate.

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