JP2017214807A - Corner member and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a corner member and a manufacturing method thereof, the corner member offering high fire proofing and resisting performance, having an angle controlled at high precision, and being manufactured readily.SOLUTION: A manufacturing method is for a corner member 1 that includes a long corner base material 2 covering an external corner 106 formed by a first plane 102 and a second plane 104, and flat plate-form first gypsum-based surface material 3 and second gypsum-based surface material 4 connected to the corner base material 2. When fitted on the external corner 106, the corner member 1 has a first side edge part 12 of the corner base material 2 in contact with the first plane 102 and a second side edge part 14 in contact with the second plane 104, a first side edge surface 12a protruding toward the first plane 102 side than the second plane 104, a second side edge surface 14a protruding toward the second plane 104 side than the first plane 102, the first gypsum-based surface material 3 connected to the first side edge surface 12a, and the second gypsum-based surface material 4 connected to the second side edge surface 14a.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a corner member and a manufacturing method thereof.

  For example, a resin corner member or a metal corner member is known as a base material provided at a corner in a building. However, the fireproof property is inferior in a resin corner member. In addition, since metal corner members have high heat transfer properties, there are problems such as a column material in a wall that tends to ignite when a fire occurs indoors, a problem that condensation easily occurs, and a problem of corrosion.

  A gypsum-based base material is known as a base material that has excellent fire resistance and low heat conductivity compared to metal, is unlikely to cause condensation, and is resistant to corrosion. As the gypsum-based corner member, for example, a fan-shaped gypsum-based building material, a first gypsum board connected to a flat first side surface in the gypsum-based building material, and a flat first shape in the gypsum-based building material A corner member including a second gypsum board connected to two side surfaces has been proposed (for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2014-234639

  However, in the corner member as in Patent Document 1, when connecting the first gypsum board and the second gypsum board to the fan-shaped gypsum building material, it is an advanced technique to control the angles with high accuracy. Is difficult to manufacture.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a corner member that is excellent in fire resistance and whose angle is controlled with high accuracy and can be easily manufactured, and a method for manufacturing the corner member.

The present invention has the following configuration.
[1] A corner member attached to a protruding corner formed by a first plane and a second plane,
A long corner base material that covers the protruding corner, and a flat plaster face material connected to the corner base material,
The corner base material includes a first side end portion in contact with the first plane and a second side end portion in contact with the second plane in a state of being attached to the protruding corner, and the first side end portion. A first side end surface of the second side end portion protrudes toward the first plane side than the second plane, and a second side end surface of the second side end portion protrudes toward the second plane side from the first plane,
A corner member in which the gypsum-based face material is connected to at least one of the first side end face and the second side end face.
[2] The corner member according to [1], wherein a gypsum-based face material is connected to both the first side end face and the second side end face.
[3] The corner member according to [1] or [2], wherein an outer surface of the first side end and an outer surface of the second side end are flat.
[4] The corner member according to [3], wherein a portion between the first side end portion and the second side end portion on the outer surface of the corner base material has an outwardly convex curved shape.
[5] A method for manufacturing the corner member according to any one of [1] to [4], comprising the following forming step, dividing step, and connecting step.
Molding step: Forming a molded body in which the side end portions of the two corner base materials are connected to each other through the connection portion.
Division step: The molded body is divided into two corner base materials.
Connecting step: The gypsum-based face material is connected to at least one of the first side end face and the second side end face of the divided corner base material.

The corner member of the present invention is excellent in fire resistance and the angle is controlled with high accuracy, and can be easily manufactured.
According to the method for manufacturing a corner member of the present invention, a corner member that is excellent in fire resistance and whose angle is controlled with high accuracy can be easily manufactured.

It is the perspective view which showed an example of the corner member of this invention. It is AA sectional drawing of the corner member of FIG. It is sectional drawing which showed a mode that the corner member of FIG. 1 was attached to the exit corner. It is sectional drawing which showed the other example of the corner member of this invention. It is the perspective view which showed an example of the molded object shape | molded with the manufacturing method of the corner member of this invention. It is BB sectional drawing of the molded object of FIG.

[Corner material]
The corner member of the present invention is a member that is attached to an exit corner formed by a first plane and a second plane as a base material or the like indoors.
In this specification, the surface of the corner member that faces the first plane and the second plane that form the protruding corner is referred to as an inner surface, and the surface opposite to the inner surface is referred to as an outer surface.

Hereinafter, an example of the corner member of the present invention will be shown and described.
The corner member 1 of this embodiment is provided with the corner base material 2, the 1st gypsum system face material 3, and the 2nd gypsum system face material 4, as shown in FIG.1 and FIG.2. The first gypsum-based face material 3 and the second gypsum-based face material 4 are connected to the corner base material 2.

(Corner base material)
The corner base material 2 is a long member that covers the protruding corner 106 formed by the first plane 102 and the second plane 104. The corner base material 2 includes a fan-shaped columnar portion 10, a flat plate-like first side end portion 12 provided so as to protrude from one planar side surface of the columnar portion 10, and the other planar shape of the columnar portion 10. And a flat plate-like second side end portion 14 provided so as to protrude from the side surface. The columnar portion 10, the first side end portion 12, and the second side end portion 14 are integrally formed.

  When the corner member 1 is attached to the protruding corner 106, the first side end 12 is disposed on the first plane 102 side, and the second side end 14 is disposed on the second plane 104 side. That is, when the corner member 1 is attached to the protruding corner 106, the first side end portion 12 is in contact with the first plane 102 and the second side end portion 14 is in contact with the second plane 104. In this state, the first side end surface 12 a of the first side end portion 12 in the corner member 1 protrudes toward the first plane 102 rather than the second plane 104. Further, the second side end surface 14 a of the second side end portion 14 in the corner member 1 protrudes toward the second plane 104 side from the first plane 102. The first gypsum-based face material 3 is connected to the first side end face 12 a of the first side end portion 12, and the second gypsum-based face material 4 is connected to the second side end face 14 a of the second side end portion 14.

The first side end portion 12 is a flat plate portion provided so as to protrude from one side surface of the columnar portion 10. As for the 1st side edge part 12, the front view shape seen from the outer surface side is a rectangular shape. Similarly, the second side end portion 14 is a flat plate portion provided so as to protrude from the other side surface of the columnar portion 10. As for the 2nd side edge part 14, the front view shape seen from the outer surface side is a rectangular shape. In this example, the angle between the first side end portion 12 and the second side end portion 14 when the corner base material 2 is viewed from one end side in the length direction is 90 degrees. That is, in the corner base material 2, the first side end portion 12 and the second side end portion 14 intersect at a right angle when viewed from one end side in the length direction.
In addition, the angle of the 1st side edge part 12 and the 2nd side edge part 14 is not limited to 90 degree | times, It can set suitably according to the angle of the protrusion corner to attach.

The outer surface 12b of the first side end 12 is flat. This facilitates positioning in connecting the first gypsum-based face material 3 to the first side end surface 12a of the first side end portion 12, and linearly extends in the width direction from the first side end portion 12 with high accuracy. The 1st gypsum system face material 3 can be connected so that it may exist. Similarly, the outer surface 14b of the second side end 14 is flat. This facilitates positioning in the connection of the second gypsum-based face material 4 to the second side end face 14a of the second side end 14 and linearly extends in the width direction from the second side end 14 with high accuracy. The 2nd gypsum type face material 4 can be connected so that it may exist.
In this way, in the present invention, the outer surface of the first side end portion and the outer surface of the second side end portion are made from the point that positioning of the gypsum-based face material connected to the corner base material is facilitated and the accuracy of the connection is increased. It is preferable to make it planar.

  The size of the corner base material 2 is not particularly limited, and can be appropriately determined in consideration of strength, productivity, ease of construction, cost, and the like. The length of the corner base material 2 can be 900-3000 mm, for example.

A thickness D (FIG. 2) of the first side end portion 12 can be set to, for example, 6 to 30 mm. The width L (FIG. 2) of the first side end 12, that is, the length from the inner surface 14 c of the second side end 14 to the first side end 12 a of the first side end 12 is, for example, 2 to 10 mm. be able to. The thickness and width of the second side end portion 14 are not particularly limited, and can be in the same range as the thickness and width of the first side end portion 12, for example.
The thickness D and the width L of the first side end portion 12 are preferably the same as the thickness and width of the second side end portion 14. The thickness D and the width L of the first side end 12 may be different from the thickness and width of the second side end 14.

In this example, the outer surface 10a of the columnar portion 10 between the first side end portion 12 and the second side end portion 14 in the corner base material 2 has a cross-sectional shape perpendicular to the length direction protruding outward. It has a curved surface so as to have an arc shape. Thus, the corner base material 2 has its outer surface cut into a curved surface. Thereby, the indoor atmosphere can be softened and the design can be improved.
In addition, in this invention, the part between the 1st side edge part and the 2nd side edge part in the outer surface of a corner base material may have a corner | angular part, without being rounded off into a curved surface shape.

  A recess 16 extending in the length direction of the corner base material 2 is formed at the corner formed by the first side end 12 and the second side end 14 on the inner surface side of the corner base 2. . The recess 16 is formed at the inner corner of the corner base material 2 so that when the corner member 1 is installed at the corner of the pillar material or the like, a pillar is formed at the corner of the corner base 2. It is possible to more easily suppress the corner base material 2 from being damaged by hitting a corner of a material or the like.

  The cross-sectional shape of the recess 16 is substantially circular in this example, but may be appropriately determined as long as the corner of the corner base material 2 does not hit the corner of the column material or the like. The width and depth of the concave stripes 16 can also be appropriately determined within a range where the corners of the columnar material do not hit the corners of the corner base 2.

  In terms of fire prevention, the corner base material is preferably a non-combustible non-porous material in which a through hole for inserting a fixing screw or nail is not formed. Note that it is not always necessary to use a non-porous material, and a through hole for inserting a fixing screw or nail may be formed in advance. When a through hole is formed in the corner base material in advance, it is preferable that the through hole is completely sealed with a screw or the like when a screw or a nail is inserted into the through hole.

  As a material for forming the corner base material, an inorganic material is preferable from the viewpoint of excellent fire resistance. Examples of inorganic materials include materials containing cement, siliceous powder, aggregates, and fibers (hereinafter, also referred to as “material X”) as main components. Note that the main component of cement, siliceous powder, aggregate and fiber is that the ratio of the total mass of cement, siliceous powder, aggregate and fiber to the total mass of the material X is 95% by mass or more. Means.

Examples of the cement include various Portland cements (ordinary Portland cement, early-strength Portland cement, medium heat Portland cement, low heat Portland cement, sulfate-resistant Portland cement, etc.), belite-rich cement, alumina cement, blast furnace cement, fly ash Examples thereof include hydraulic cements such as cement and various mixed cements.
As the cement, one kind may be used alone, or two or more kinds may be used in combination.

Examples of the siliceous powder include silica, diatomaceous earth, microsilica, silica fume and the like. Of these, silica is preferable as the siliceous powder.
As siliceous powder, 1 type may be used independently and 2 or more types may be used together.

Examples of the aggregate include sand, fly ash balloon, shirasu balloon, pearlite balloon, obsidian balloon, perlite, vermiculite, kanamite, glass microballoon and the like.
As the aggregate, one kind may be used alone, or two or more kinds may be used in combination.

  Examples of the fibers include organic fibers such as pulp, waste paper, polyamide fibers, polyester fibers, polypropylene fibers, and vinylon fibers, and inorganic fibers such as glass fibers and carbon fibers. As the fiber, one kind may be used alone, or two or more kinds may be used in combination. Of these, pulp is preferable as the fiber.

30-65 mass% is preferable, and, as for content of the cement in the material X, 35-55 mass% is more preferable.
The content of the siliceous powder in the material X is preferably 20 to 40% by mass, and more preferably 25 to 37% by mass.
5-30 mass% is preferable and, as for content of the aggregate in the material X, 8-25 mass% is more preferable.
2-10 mass% is preferable and, as for content of the fiber in the material X, 2.5-8 mass% is more preferable.

  The manufacturing method of a corner base material is not specifically limited, For example, methods, such as extrusion molding using the material X, are mentioned.

(Gypsum face material)
The first gypsum-based face material 3 is a flat plate member having a rectangular shape in front view. The side end surface 3 a of the first gypsum-based face material 3 is connected to the first side end surface 12 a of the first side end portion 12 in the corner base material 2. That is, the first gypsum-based face material 3 is connected so as to extend in the width direction of the first side end portion 12 from the first side end surface 12 a of the first side end portion 12 in the corner base material 2. The first gypsum-based face material 3 is provided from one end in the length direction of the first side end portion 12 of the corner base material 2 to the other end.

The thickness of the first gypsum-based face material 3 is preferably the same as the thickness of the first side end portion 12 of the corner base material 2.
The width of the first gypsum-based face material 3, that is, the length from the side end face 3 a on the first side end portion 12 side to the side end face 3 b on the opposite side of the first gypsum-based face material 3 is The width, strength, ease of production, etc. can be taken into consideration as appropriate. For example, the width | variety of the 1st gypsum system face material 3 can be 35-75 mm.

  Similar to the first gypsum-based face material 3, the second gypsum-based face material 4 is a flat plate member having a rectangular shape in front view. The side end surface 4 a of the second gypsum-based face material 4 is connected to the second side end surface 14 a of the second side end portion 14 in the corner base material 2. That is, the second gypsum-based face material 4 is connected so as to extend in the width direction of the second side end portion 14 from the second side end surface 14 a of the second side end portion 14 of the corner base material 2. The second gypsum-based face material 4 is provided from one end in the length direction to the other end of the second side end portion 14 of the corner base material 2.

The thickness of the second gypsum-based face material 4 is preferably the same as the thickness of the second side end portion 14 of the corner base material 2.
The width of the second gypsum-based face material 4, that is, the length from the side end face 4a on the second side end portion 14 side to the side end face 4b on the opposite side of the second gypsum-based face material 4, is The width, strength, ease of production, etc. can be taken into consideration as appropriate. For example, the width | variety of the 2nd gypsum system face material 4 can be 35-75 mm.
The width of the second gypsum-based face material 4 may be the same as or different from the width of the first gypsum-based face material 3.

  In the corner member 1, the first gypsum-based face material 3 is provided so as to extend on the first side end face 12 a of the corner base material 2, and the second gypsum-type face material is provided on the second side end face 14 a of the corner base material 2. 4 is provided to extend. Therefore, the angle formed by the first gypsum-based face material 3 and the second gypsum-based face material 4 is the same as the angle formed by the first side end 12 and the second side end 14 in the corner base material 2. Yes.

  In the corner member 1, the first side end surface 12 a of the corner base material 2 protrudes to the first plane 102 side from the second plane 104 when the corner member 1 is attached to the protruding corner, and the second side end surface 14 a is the first plane 102. Rather than the second plane 104 side. Thereby, compared with the form which the 1st side end surface 12a and the 2nd side end surface 14a do not protrude, the 1st gypsum system face material 3 and the 2nd on the 1st side end surface 12a and the 2nd side end surface 14a of the corner base material 2 Each connection surface at the time of connecting the gypsum-based face material 4 is separated from each other. Therefore, the connection operation of the first gypsum-based face material 3 and the second gypsum-based face material 4 to the corner base material 2 becomes easy, so that the angle between the first gypsum-based face material 3 and the second gypsum-based face material 4 is increased. It becomes possible to manufacture easily while controlling with high accuracy.

The gypsum-based face material is not particularly limited, and examples thereof include ordinary gypsum board, reinforced gypsum board, ordinary hard gypsum board, glass mat gypsum board, glass fiber non-woven gypsum board, and slag gypsum board. Especially, as a gypsum-type face material, the glass fiber nonwoven fabric gypsum board and slag gypsum board with which the surface is not coat | covered are preferable at the point which is excellent in design property. It is more preferable that the plaster face material is covered with paper because it is easy to finish the wallpaper, which is the most common interior finish, and ordinary plasterboard, reinforced plasterboard, and ordinary hard plasterboard covered with paper Particularly preferred.
The first gypsum face material 3 and the second gypsum face material 4 may be the same gypsum face material or different gypsum face materials.

The aspect which connects a corner base material and a gypsum surface material is not specifically limited, For example, the aspect using an adhesive material is mentioned.
As the adhesive, for example, a vinyl acetate resin emulsion adhesive or an inorganic adhesive is preferable. Examples of the vinyl acetate resin-based emulsion adhesive include Yoshino Sakubi Bond (trade name). An example of the inorganic adhesive is Trabond (registered trademark).

In the corner member of the present invention, it is preferable that the surfaces of the corner base material and the plaster face material are covered with paper. For example, in the corner member 1, from the first side end surface 12a side of the first side end portion 12 on the inner surface 1b, the side end surface 3b of the first gypsum-based face material 3, the outer surface 1a, and the second gypsum-based face material 4 side. A mode in which the sheet is covered with paper up to the second side end surface 14a side of the second side end portion 14 on the inner surface 1b around the end surface 4b can be mentioned. As described above, the surfaces of the corner base material and the gypsum-based face material are covered with paper, so that the outer surface of the corner member is prevented from being scraped, and the cloth (wallpaper) is pasted on the outer surface of the corner member. Adhesiveness increases. Moreover, the handleability of the corner member is improved.
As the paper covering the corner member, board base paper generally used for gypsum-based face materials can be used.

Hereinafter, as an example of a method of using the corner member 1, a mode in which the corner member 1 is attached to the protruding corner 106 of the column member 100 will be described with reference to FIG. 3.
First, the corner member 1 is disposed on the surface of the column member 100. At this time, the first side end 12 and the first gypsum surface material 3 are in contact with the first flat surface 102 of the column member 100 with the inner surface 1b of the corner member 1 facing the column member 100 side, and the second of the column member 100 The second side end 14 and the second gypsum-based face material 4 are in contact with the flat surface 104. Further, the corner of the protruding corner 106 is positioned at the concave portion 16.
In this state, the screws 150 are passed through the first gypsum-based face material 3 and the second gypsum-based face material 4, and the corner member 1 is attached to the protruding corner 106. Thus, in the state attached to the protruding corner 106, the first side end surface 12a of the corner base material 2 in the corner member 1 protrudes toward the first plane 102 side from the second plane 104, and the second side end surface 14a is the first. It protrudes from the plane 102 toward the second plane 104.

In addition, the gypsum-based face material 110 is disposed and fixed on the side end face 3b side of the first gypsum-based face material 3 in the first plane 102 of the pillar material 100. At this time, the side end surface of the gypsum-based face material 110 is brought into close contact with the side end face 3 b of the first gypsum-based face material 3. Similarly, the gypsum-based face material 112 is also in close contact with the side end face 4b of the second gypsum-based face material 4 on the side end face 4b side of the second gypsum-based face material 4 on the second plane 104 of the pillar material 100. Place and fix as you want.
Next, a cloth is pasted so as to cover from the outer surface of the gypsum-based face material 110 to the outer surface 1 a of the corner member 1 and the outer surface of the gypsum-based face material 112. Thereby, the interior decoration structure of the corner in the inside etc. can be formed.

  It does not specifically limit as a manufacturing method of the corner member of this invention, It is preferable to manufacture with the manufacturing method of this invention mentioned later.

As described above, in the corner member of the present invention, the first side end surface and the second side end surface of the corner base material have a protruding shape. Since the corner substrate can be integrally formed by extrusion or the like, the angle can be controlled with high accuracy. And since the gypsum-type face material can be easily connected to the protruding first side end face and the second side end face of the corner base material, the angle of the gypsum-type face material can be controlled with high accuracy. Thus, the corner member of the present invention can be easily manufactured while controlling the angle with high accuracy.
Moreover, the corner member of this invention is excellent also in fireproofing resistance.

The corner member of the present invention is not limited to the corner member 1 described above. For example, it may be a corner member in which a gypsum-based face material is connected to only one of the first side end face and the second side end face of the corner base material. Specifically, for example, the corner member 1A illustrated in FIG. 4 may be used. The same parts in FIG. 4 as those in FIG.
The corner member 1A is the same as the corner member 1 except that the second gypsum-based face material 4 is not provided, and the width of the second side end portion 14A of the corner base material 2 is increased by that amount. Also in the corner member 1A, the angle between the second side end portion 14A and the first gypsum-based face material 3 can be easily controlled with high accuracy.

  When a gypsum surface material is provided on one of the first side end surface or the second side end surface of the corner base material as in the corner member 1A, the width of the side end portion on the side where the gypsum system surface material is not connected is increased. Is preferred. Thereby, since it becomes favorable when attaching a corner member to a pillar material etc., construction becomes easier.

[Method of manufacturing corner member]
The corner member manufacturing method of the present invention is a method of manufacturing the above-described corner member of the present invention. The manufacturing method of the corner member of the present invention includes the following forming step, dividing step, and connecting step.
Molding step: Forming a molded body in which the side end portions of the two corner base materials are connected via the connection portion.
Division step: The molded body is divided into two corner base materials.
Connection step: A gypsum-based face material is connected to at least one of the first side end face and the second side end face of the divided corner base material.
Hereinafter, each process will be described by taking the case of manufacturing the corner member 1 as an example.

(Molding process)
In the molding step, as shown in FIGS. 5 and 6, a molded body in which the first side end portion 12 and the second side end portion 14 of the two corner base materials 2, 2 ′ are connected via the connection portion 5. 200 is formed. Corner base material 2 'is the same aspect as corner base material 2, and is used separately from corner base material 2. As the molding method, an extrusion molding method is preferable.

  In the molded body 200 formed in the molding process, two corner base materials 2, 2 ′ used as separate members at the time of construction are integrally formed via the connection portion 5. Thereby, the dimensional accuracy of the molded object formed by extrusion molding can be made high. The factors for obtaining such an effect are considered as follows.

  In extrusion molding, the material tends to be less likely to be extruded as the size of the molded body is smaller. This tendency is particularly remarkable when a material containing cement, siliceous powder, aggregate, or fiber as a main component is used. However, since the two corner base materials 2 and 2 ′ are integrated through the connecting portion 5, even if each corner base material 2 has a small size, the molded body 200 has a sufficient size. Can extrude material smoothly. Thereby, a molded object with high dimensional accuracy of each corner base material is obtained.

In the molded body 200, the first side end portion 12 on the side that is not connected by the connection portion 5 in one corner base material 2 and the first side end portion 12 that is not connected by the connection portion 5 in the other corner base material 2 ′. The two side end portions 14 are positioned on the same side with respect to the connection portion. Thereby, as for the molded object 200, the cross-sectional shape perpendicular | vertical to the length direction is U shape. Thus, in the manufacturing method of the present invention, the side end portions of the two corner base materials that are not connected at the connecting portion are located on the same side with respect to the connecting portion, and are perpendicular to the length direction. The shape is preferably U-shaped.
In this example, the two corner base materials have the same shape, and the cross-sectional shape perpendicular to the length direction of the molded body 200 is symmetric with respect to the connection portion 5.

  In the molded body 200, the recess 6 extending in the length direction is formed at the portion of the connection portion 5 on the outer surface 200a, and the recess 7 extending in the length direction is also formed at the portion of the connection portion 5 on the inner surface 200b. ing. Thereby, the thickness of the connecting portion 5 in this example is thinner than the thickness of the first side end portion 12 and the thickness of the second side end portion 14. Since the thickness of the connecting portion 5 is thinner than the thickness of the first side end portion 12 and the thickness of the second side end portion 14, the molded body 200 can be easily cut and divided along the connecting portion 5. become.

(Division process)
In the dividing step, the molded body 200 obtained in the forming step is divided into two in the width direction along the connecting portion 5 to obtain two corner base materials 2 and 2 ′. The method for dividing the molded body 200 is not particularly limited, and examples thereof include a cutting machine using a grindstone, a tip saw, a circular saw, or the like. The side end face on the side connected to the connecting portion 5 in the corner base materials 2 and 2 ′ after the division is polished to make a smooth surface as necessary.

(Connection process)
In the connecting step, the first gypsum-based face material 3 is connected to the first side end face 12a of the first side end 12 in the divided corner base material 2, 2 ′, and the second side end face of the second side end 14 is connected. The 2nd gypsum type face material 4 is connected to 14a. Thereby, the corner member 1 is obtained.
The method for connecting the gypsum surface material to the side end surface of the corner base material is not particularly limited, and examples thereof include a method using an adhesive.

  As described above, in the method for manufacturing a corner member according to the present invention, after forming a molded body in which two corner base materials are connected at a connection portion, a gypsum-based face material is applied to the corner base material divided from the molded body. Connect to produce a corner member. Therefore, it is possible to easily obtain a corner member that is excellent in fire resistance and whose angle and size are controlled with high accuracy.

  In addition, the manufacturing method of the corner member of this invention is not limited to the method of manufacturing the above-mentioned molded object 200. For example, a method of connecting a gypsum-based face material to only one side end face of the corner base material may be used.

DESCRIPTION OF SYMBOLS 1, 1A Corner member 2, 2 'Corner base material 3 1st gypsum system surface material 4 2nd gypsum system surface material 5 Connection part 12 1st side end part 12a 1st side end surface 14 2nd side end part 14a 2nd side End face 16 Concave line 100 Column material 102 First plane 104 Second plane 106 Out corner 110, 112 Gypsum-based face material 200 Molded body

Claims (5)

A corner member attached to a protruding corner formed by a first plane and a second plane,
A long corner base material that covers the protruding corner, and a flat plaster face material connected to the corner base material,
The corner base material includes a first side end portion in contact with the first plane and a second side end portion in contact with the second plane in a state of being attached to the protruding corner, and the first side end portion. A first side end surface of the second side end portion protrudes toward the first plane side than the second plane, and a second side end surface of the second side end portion protrudes toward the second plane side from the first plane,
A corner member in which the gypsum-based face material is connected to at least one of the first side end face and the second side end face.   The corner member according to claim 1, wherein a gypsum-based face material is connected to both the first side end face and the second side end face.   The corner member according to claim 1 or 2, wherein an outer surface of the first side end portion and an outer surface of the second side end portion are flat.   The corner member according to claim 3, wherein a portion between the first side end portion and the second side end portion on the outer surface of the corner base material has a curved surface shape protruding outward. It is a method of manufacturing the corner member as described in any one of Claims 1-4, Comprising: The manufacturing method of a corner member which has a following formation process, a division | segmentation process, and a connection process.
Molding step: Forming a molded body in which the side end portions of the two corner base materials are connected to each other through the connection portion.
Division step: The molded body is divided into two corner base materials.
Connecting step: The gypsum-based face material is connected to at least one of the first side end face and the second side end face of the divided corner base material.

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