JP2021169768A - Cross corner finishing material - Google Patents

Abstract

To provide a cross corner finishing material that can facilitate smoothly applying putty materials to the surface, reduce consumption of putty material, and improve workability of whole construction.SOLUTION: There is provided a height direction cross corner finishing material 1 attached as a surface treatment member for an outlet side corner or an inlet side corner of an inside of building. The height direction cross corner finishing material is a cross section L-shaped long member along a corner part 51 of the corner. A plurality of recessed grooves 4a for storage space of putty material are formed to at least an added surface 2 side of ornament wall paper cloth in a width direction of the long member.SELECTED DRAWING: Figure 1

Description

The present invention relates to a cross-corner finishing material, and more particularly to a cross-corner finishing material used for construction of a corner portion of an inner wall of a building or an inside corner portion.

Conventionally, in the construction of the inner wall of a building, it is common to attach wallpaper, cloth cloth, vinyl cloth or other decorative wallpaper cloth to the surface of the wall base material made of base material such as gypsum board or plywood. At this time, gaps and steps may occur at the joints of the base material, which are corners such as the protruding corners and the inside corners of the inner wall, due to dimensional errors and mounting errors of the base material. In order to finish the inner wall beautifully, it is necessary to attach the decorative wallpaper cloth after making it a smooth surface with no gaps or steps. Corner materials and the like attached to the corners of the wall base in order to smooth the surface of the corners of the wall base are known (see, for example, Patent Documents 1 to 3). A corner material is attached to the corner of the wall base, putty or the like is applied to the surface of the wall base and the corner material to smooth the surface, and then a decorative wallpaper cloth is attached.

A conventional cross-corner finishing material will be described with reference to FIG. As shown in FIG. 3, the conventional cross-corner finishing material 101 is a long member having an L-shaped cross section along a corner portion 51 in which two wall plates 50A and 50B are butted against each other, and a decorative wallpaper cloth is attached. A plurality of concave grooves 104 are formed along the length direction of the long member on the surface 102 side (the L-shaped outer wall surface side in the protruding corner side). The recessed groove 104 improves the bite of the putty material on the surface of the cross corner finishing material 101 when the putty material is applied to the supporting surface 102 of the decorative wallpaper cloth of the cross corner finishing material 101, and uniformly applies the putty material. A large number of lumbers are formed for the purpose of forming a surface.

Japanese Unexamined Patent Publication No. 2005-320793 Japanese Unexamined Patent Publication No. 2013-163948 JP-A-2017-2572

However, despite the fact that high skill is required to apply putty material to the surface of the wall base and corner material to smooth the surface, the retention rate of human resources in the inner wall construction industry has been declining recently. The number of craftsmen who have acquired the skills of applying putty materials is decreasing. Therefore, it is difficult to sufficiently smooth the surface of the wall base and the corner material, and it is difficult to finish the inner wall of the building beautifully.

If the skill of applying the putty material is insufficient, the amount of the putty material applied to the wall base and the surface of the corner material increases, the putty material becomes thick, and the consumption of the putty material increases. When the putty material is thickly coated, it takes time for the putty material to dry and harden, so that the uncured putty material hangs down and the surface to which the putty material is applied becomes uneven. In order to solve this, it is necessary to smooth the surface coated with the putty material, which takes time and effort.

In the conventional cross-corner finishing material 101, by forming a plurality of concave grooves 104 along the length direction of the long member, the putty material can be better attached to the surface of the cross-corner finishing material 101. Although it has the effect of forming a uniform coated surface, it is difficult for a person who does not have sufficient putty material coating skills to apply the putty material thinly and smooth the surface. Therefore, since the putty material is thickly coated, it takes time to dry the putty material, and it is not possible to immediately move to the work of attaching the decorative wallpaper cloth to the surface, and the work time of the entire construction of the inner wall of the building becomes long. It ends up.

The present invention has been made in view of the above circumstances, and an object of the present invention is that the putty material can be easily applied to the surface smoothly, the consumption of putty can be reduced, and the workability of construction can be improved. The purpose is to provide an improved cross-corner finish.

The cross-corner finishing material that was able to solve the above-mentioned problems is a cross-corner finishing material in the height direction that is attached as a base treatment member for the exit side corner or the entrance side corner in the interior of the building, and is a corner corner. It is a long member with an L-shaped cross section along the portion, and is characterized in that a plurality of concave grooves serving as a pooling space for the putty material are formed at least on the side of the side of the decorative wallpaper cloth in the width direction of the long member. Is to be. The cross-corner finishing material of the present invention has such a structure, which makes it easy to apply the putty material smoothly to the surface.

In the cross-corner finishing material of the present invention, the concave groove is preferably one of a straight line, a wavy line, a jagged shape, and a broken line shape. The width of the groove is preferably 0.2 mm or more and 0.8 mm or less. The depth of the groove is preferably 0.1 mm or more and 0.3 mm or less. The concave grooves are preferably formed at a pitch of 0.2 mm or more and 1.0 mm or less in the long length direction.

The cross-corner finishing material of the present invention preferably has a plurality of concave grooves formed in the length direction of the long member.

The cross-corner finishing material of the present invention is a cross-corner finishing material in the height direction to be attached as a base treatment member for an exit side corner or an entrance side corner in a building, and has an L-shaped cross section along a corner of the corner. It is a long member of the mold, and is characterized in that a plurality of concave grooves serving as a space for collecting putty material are formed at least on the side of the side of the decorative wallpaper cloth in the width direction of the long member. With such a configuration, it is possible to suppress the dripping of the putty material, so that the coated surface of the putty material can be easily made a smooth outer surface. Further, since the putty material can be applied thinly, the consumption amount of the putty material can be reduced, and the drying time of the putty material can be shortened, so that the workability of the entire construction can be improved.

The perspective view of the cross corner finishing material in embodiment of this invention is shown. The cross-sectional view of the cross corner finishing material in embodiment of this invention is shown. Shows a perspective view of a conventional cross-corner finishing material.

Hereinafter, the cross-corner finishing material according to the present invention will be specifically described with reference to the drawings. It is also possible to make changes to the above, and all of them are included in the technical scope of the present invention.

In the present invention, the cross-corner finishing material is a cross-corner finishing material in the height direction to be attached as a base treatment member for an exit side corner or an entrance side corner in a building, and has a cross section L along a corner portion of the corner. It is a character-shaped long member, and is characterized in that a plurality of concave grooves serving as a pooling space for putty material are formed at least on the side of the decorative wallpaper cloth in the width direction of the long member. It is a thing.

In the present invention, the exit corner is a convex portion formed by two base materials constituting a wall in the interior of a building, and means an outside corner. The entrance side corner is a recess formed by two base materials forming a wall in the interior of a building, and means an entrance corner. The height direction corresponds to the direction from the floor to the ceiling in the interior of the building.

As shown in FIGS. 1 and 2, the cross-corner finishing material 1 in the embodiment of the present invention is attached as a base treatment member for the exit side corner or the entrance side corner in the interior of the building. It is a long member having an L-shaped cross section along the corner 51 of the corner, and a concave groove 4a serving as a space for collecting putty material is formed at least on the side of the supporting surface 2 of the decorative wallpaper cloth in the width direction of the long member. It is a plurality of formed ones. In FIG. 1, the direction of L1 corresponds to the length direction of the long member, and the directions of L2 and L3 correspond to the width direction of the long member. Further, the length direction of the long member is equal to the height direction.

The method of attaching the cross corner finishing material 1 to the corner 51 of the corner is not particularly limited. For example, a putty material, an adhesive, a tape, a double-sided tape, or the like is used to attach the corner attaching surface 3 of the cross corner finishing material 1 to the corner. It can be attached to the corner portion 51. Above all, it is preferable to use double-sided tape. By adopting such a sticking method, it becomes easy to stick the cross corner finishing material 1 to the corner portion 51.

The cross-corner finishing material 1 has a first flat plate portion 10 and a second flat plate portion 20, and a bent portion 30 that connects them.

The width L2 of the first flat plate portion 10 may be the same as or different from the width L3 of the second flat plate portion 20, but is preferably the same length. If the width L2 of the first flat plate portion 10 and the width L3 of the second flat plate portion 20 are the same, the joint strength of the entire cross corner finishing material 1 to the corner portion 51 can be made uniform.

The widths L2 and L3 are not particularly limited, and the widths L2 and L3 can be appropriately selected depending on the state of the corners 51 to which the cross corner finishing material 1 is attached. For example, the widths L2 and L3 are preferably 15 mm or more, more preferably 17 mm or more, and further preferably 20 mm or more. By setting the lower limit values of the widths L2 and L3 in this way, it is possible to make the joining force when the cross corner finishing material 1 is attached to the corner portion 51 of the corner sufficient. Further, the widths L2 and L3 are preferably 50 mm or less, more preferably 45 mm or less, and further preferably 40 mm or less. By setting the upper limit values of the widths L2 and L3 in this way, the cross corner finishing material 1 can be made lighter.

The angle R1 of the bent portion 30 of the cross corner finishing material 1 may be an angle along the corner 51 of the corner and is not particularly limited, but the cross corner finishing material 1 has an L-shaped cross section along the corner 51 of the corner. Since it is a thin plate, for example, when it is pressed against the exit corner, it is preferable to expand it slightly by utilizing the elasticity of the material. Therefore, the angle is preferably slightly less than 90 degrees, and is 87 degrees or more and 89 degrees or less. Is recommended. On the other hand, when applied to the entrance corner, an angle slightly exceeding 90 degrees, for example, 91 degrees or more and 93 degrees or less is recommended.

The thickness of the cross-corner finishing material 1 may be a constant thickness throughout, or there may be a partially thin portion. For example, when applied to the outside corner, if an acute-angled edge is formed at the tip of the cross corner finishing material 1 on the outer surface side as shown by the circle in FIG. 2, the wallpaper or cloth can be smoothed. It can be attached by appearance. Alternatively, the cross-corner finishing material 1 may have a tapered shape in which the thickness of the bent portion 30 is the thickest, and the thickness gradually decreases as the cross-corner finishing material 1 moves away from the bent portion 30 and approaches the tip portion. Since the thickness of the cross corner finishing material 1 is such that it is easy to apply the putty material smoothly so that there is no step at the boundary between the cross corner finishing material 1 and the corner portion 51 of the corner, and the decorative wallpaper cloth. Can be pasted neatly without steps.

The thickness of the cross-corner finishing material 1 is not particularly limited, but is preferably 0.1 mm or more, more preferably 0.2 mm or more, and further preferably 0.3 mm or more. By setting the lower limit of the thickness of the cross-corner finishing material 1 in this way, the strength of the cross-corner finishing material 1 can be made sufficient. The thickness of the cross corner finishing material 1 is preferably 1.0 mm or less, more preferably 0.9 mm or less, and further preferably 0.8 mm or less. By setting the upper limit of the thickness of the cross corner finishing material 1 in this way, when the cross corner finishing material 1 is attached to the corner portion 51 of the corner, the decorative wallpaper cloth of the cross corner finishing material 1 is added. The step formed between the surface 2 and the corner portion 51 can be made small, and the decorative wallpaper cloth can be beautifully attached without a step.

The length L1 of the cross-corner finishing material 1 in the height direction is not particularly limited, and can be appropriately selected, such as setting the length L1 to match the height from the floor to the ceiling of the place where the cross-corner finishing material 1 is attached. Just do it. For example, the length L1 of the cross corner finishing material 1 in the height direction is preferably 1800 mm or more, more preferably 2000 mm or more, and further preferably 2200 mm or more. By setting the lower limit of the length L1 of the cross corner finishing material 1 in the height direction in this way, the cross corner finishing material 1 can be made a size that is easy to handle. The length L1 of the cross-corner finishing material 1 in the height direction may be made shorter so that it can be added and applied in the height direction according to the work site.

The material of the cross-corner finishing material 1 is not particularly limited, and examples thereof include thermoplastic resins such as vinyl chloride resin, ABS resin, and polystyrene resin, thermosetting resins such as phenol resin and melamine resin, and metals such as aluminum. Above all, a thermoplastic resin is preferable. Since the material of the cross-corner finishing material 1 is a thermoplastic resin, the production of the cross-corner finishing material 1 becomes easy. More preferably, it is a vinyl chloride resin, and since the material of the cross-corner finishing material 1 is a vinyl chloride resin, the cross-corner finishing material 1 having excellent strength and flame retardancy can be obtained.

The concave groove 4a serves as a storage space for the putty material. In order to attach the decorative wallpaper cloth to the corner 51 and the cross corner finishing material 1, putty material is applied to the surface of the side surface 2 of the decorative wallpaper cloth of the corner 51 and the cross corner finishing material 1. do. At this time, the putty material enters the recessed spaces of the recessed grooves 4a provided on the auxiliary surface 2 of the decorative wallpaper cloth, and the putty material stays in the recessed grooves 4a. This prevents the putty material from flowing downward, improves the workability of applying the putty material, and finishes the applied surface beautifully. Further, since the putty material can be applied thinly, it is possible to reduce the consumption of the putty material, and as a result, the drying time of the putty material can be shortened and the workability is improved.

The type of putty material applied to the surface of the cross-corner finishing material 1 is not particularly limited. For example, "Wide Super" manufactured by Yayoi Chemical Industry Co., Ltd. (Product No .: 276-211), "Wall Putty S 120" manufactured by Wall Bond Industry Co., Ltd., and "Hi Smooth Super 60" manufactured by Far East Industrial Machinery Co., Ltd. (Product No. 12-8705) and the like.

A plurality of concave grooves 4a are formed in the width direction of the long member. That is, a plurality of concave grooves 4a are formed on the side 2 of the decorative wallpaper cloth of the first flat plate portion 10 and the second flat plate portion 20 along the width direction of the cross corner finishing material 1.

The shapes of the plurality of concave grooves 4a may all be the same or may be different. The shape of the concave groove 4a is not particularly limited, and examples thereof include a straight line, a wavy line that is a wavy line, a jagged shape that is a zigzag bent line, and a broken line shape. Above all, the concave groove 4a is preferably linear. Since the concave groove 4a has such a shape, the putty material can be thinly applied to the surface of the cross corner finishing material 1, and the consumption of the putty material can be reduced.

The widths of the plurality of concave grooves 4a may all be the same or may be different. The width of the groove 4a is not particularly limited, but is preferably 0.2 mm or more, more preferably 0.3 mm or more, and further preferably 0.4 mm or more. By setting the lower limit of the width of the concave groove 4a in this way, the putty material can easily enter the concave groove 4a. The width of the concave groove 4a is preferably 0.8 mm or less, more preferably 0.7 mm or less, and further preferably 0.6 mm or less. By setting the upper limit of the width of the concave groove 4a in this way, the amount of the putty material applied to the surface of the cross corner finishing material 1 can be reduced.

The depths of the plurality of concave grooves 4a may all be the same or may be different. The depth of the groove 4a is not particularly limited, but is preferably 0.1 mm or more, and more preferably 0.15 mm or more. By setting the lower limit of the depth of the concave groove 4a in this way, the putty material can be retained inside the concave groove 4a. The depth of the concave groove 4a is preferably 0.3 mm or less, and more preferably 0.25 mm or less. By setting the upper limit of the depth of the concave groove 4a in this way, the strength of the first flat plate portion 10 and the second flat plate portion 20 can be sufficiently maintained.

The pitches of the plurality of concave grooves 4a may all be the same or may be different. The pitch at which the plurality of concave grooves 4a are formed is not particularly limited, but is preferably 0.2 mm or more, more preferably 0.3 mm or more, and 0.4 mm or more in the length direction of the long member. It is more preferable to have. By setting the lower limit of the pitch of the concave groove 4a in this way, it becomes easy to smoothly apply the putty material to the surface of the cross corner finishing material 1. Further, the pitch in which the plurality of concave grooves 4a are formed is preferably 1.0 mm or less, more preferably 0.8 mm or less, and further preferably 0.6 mm or less. By setting the upper limit of the pitch of the concave groove 4a in this way, the putty material is accumulated inside the concave groove 4a, and the amount of the putty material applied to the surface of the cross corner finishing material 1 can be reduced.

In addition to the concave groove 4a, the cross corner finishing material 1 can form a plurality of concave grooves 4b in the length direction of the long member as in the conventional cross corner finishing material 101. The concave groove 4a in the width direction has a remarkable effect of preventing the putty material from dripping, but if the concave groove 4b in the length direction is provided in addition to the concave groove 4a in the width direction, the putty material bites. The surface becomes uniform and smooth after painting.

The concave groove 4b is a space for collecting putty material like the concave groove 4a. When the putty material is applied to the surface of the side surface 2 of the decorative wallpaper cloth of the cross corner finishing material 1, the putty material is placed in the recessed spaces of the recessed grooves 4b provided on the side surface 2 of the decorative wallpaper cloth. It enters and the putty material stays in the concave groove 4b. By accumulating the putty material in the concave groove 4b, the area where the surface of the cross corner finishing material 1 and the putty material come into contact with each other can be increased, and the adhesiveness of the putty material to the surface of the cross corner finishing material 1 can be improved. Will be.

The cross-corner finishing material 1 may have holes 5 in the same manner as the conventional cross-corner finishing material 101. The hole 5 is preferably a through hole penetrating in the thickness direction of the cross corner finishing material 1, but may be a recess and not penetrating. By having the holes 105, the conventional cross-corner finishing material 101 has an effect that the putty material enters the holes 105, improves the bite of the putty material, and forms a uniform coated surface of the putty material. doing. Since the cross-corner finishing material 1 of the present invention has a concave groove 4a in the width direction, it has sufficient biting property of the putty material, and therefore, even if it does not have the hole 5, it is more than the conventional cross-corner finishing material 101. However, the effect is not inferior. However, if the holes 5 are formed in addition to the concave grooves 4a in the width direction, the biting of the putty material can be further improved. Therefore, the holes 5 may be provided in the cross corner finishing material 1.

The number of holes 5 is not particularly limited, but is preferably a plurality. By providing a plurality of holes 5 in the cross corner finishing material 1, the effect of preventing the putty material from flowing downward, which is the effect of the concave groove 4a, can be further enhanced.

The shape of the hole 5 is not particularly limited, and may be, for example, a circular shape, an elliptical shape, a polygonal shape, or any other design pattern. A circular or oblong oval shape is particularly preferable. Since the shape of the hole 5 is such a shape, the effect of making the putty material difficult to hang down can be enhanced. When there are a plurality of holes 5, the shapes of the holes 5 may all be the same or different.

The size of the hole 5 is not particularly limited, but the length of the hole 5 in the major axis direction is preferably 2 mm or more, more preferably 3 mm or more, and further preferably 4 mm or more. By setting the upper limit of the size of the hole 5 in this way, the putty material can easily enter the lumen of the hole 5. The size of the hole 5 is preferably 10 mm or less, more preferably 8 mm or less, and further preferably 6 mm or less. By setting the lower limit of the size of the hole 5 in this way, the putty material that has entered the lumen of the hole 5 can be sufficiently fastened.

When the cross-corner finishing material 1 has a plurality of holes 5, the distance between the centers of the adjacent holes 5 is not particularly limited, but is preferably 1 times or more, preferably 1.2 times or more the size of the holes 5. Is more preferable, and 1.4 times or more is further preferable. By setting the lower limit of the distance between the centers of the adjacent holes 5 in this way, the strength of the cross corner finishing material 1 can be made sufficient. Further, the distance between the centers of the adjacent holes 5 is preferably 5 times or less, more preferably 4 times or less, and further preferably 3 times or less the size of the holes 5. By setting the upper limit of the distance between the centers of the adjacent holes 5 in this way, it is possible to further prevent the putty material from flowing downward.

Examples of the method for producing the cross-corner finishing material 1 according to the embodiment of the present invention include the following methods. In the example of this manufacturing method, the cross corner finishing material 1 having all of the concave groove 4a in the width direction, the concave groove 4b in the length direction, and the hole 5 can be manufactured. First, a long member having an L-shaped cross section is formed by extrusion molding. By providing unevenness on the surface of the long member of the extrusion mold, it is possible to form the long member having the concave groove 4b in the length direction. Immediately after extrusion molding or after a while, the long member is heated and the hole 5 is formed by punching. Finally, heat is applied to a roller having an uneven surface and pressed against the first flat plate portion 10 of the long member to form a concave groove 4a in the width direction. Similarly for the second flat plate portion 20 of the long member, the concave groove 4a in the width direction is formed.

As described above, the cross-corner finishing material of the present invention is a cross-corner finishing material in the height direction to be attached as a base treatment member for the exit side corner or the entrance side corner in the interior of the building, and is a corner portion of the corner. It is a long member with an L-shaped cross section along the above, and at least on the side of the side of the decorative wallpaper cloth, a plurality of concave grooves serving as a pool space for the putty material are formed in the width direction of the long member. It is characterized by. With such a configuration, the putty material can be easily applied to smooth the surface, and the putty material can be prevented from dripping, so that the applied surface is beautiful and smooth. Therefore, the consumption of putty material can be reduced. Further, since the putty material can be applied thinly, the putty material dries faster and the workability is improved.

1: Cross corner finishing material 2: Decorative wallpaper cloth attachment surface 3: Corner attachment surface 4a: Concave groove in the width direction 4b: Concave groove in the length direction 5: Hole 10: First flat plate part 20: Second Flat plate part 30: Bent part L1: Length in the height direction of the cross corner finishing material L2: Width of the first flat plate part L3: Width of the second flat plate part R1: Angle of the bent part 50A: One wall plate 50B : The other wall plate 51: Corner corner 101: Cross corner finishing material 102: Cross attachment surface 104: Recessed groove 105: Hole 110: First flat plate 120: Second flat plate 130: Bent

Claims (6)

A cross-corner finishing material in the height direction that is attached as a base treatment member for the exit corner or entrance corner inside a building.
It is a long member with an L-shaped cross section along the corners, and at least on the side of the side of the decorative wallpaper cloth, a plurality of concave grooves serving as a space for collecting putty material are formed in the width direction of the long member. A cross-corner finishing material characterized by being a thing. The cross-corner finishing material according to claim 1, wherein the concave groove is any one of a straight line, a wavy line, a jagged shape, and a broken line shape. The cross-corner finishing material according to claim 1 or 2, wherein the width of the concave groove is 0.2 mm or more and 0.8 mm or less. The cross-corner finishing material according to any one of claims 1 to 3, wherein the depth of the concave groove is 0.1 mm or more and 0.3 mm or less. The cross-corner finishing material according to any one of claims 1 to 4, wherein the concave groove is formed at a pitch of 0.2 mm or more and 1.0 mm or less in the long length direction. The cross-corner finishing material according to any one of claims 1 to 5, wherein the cross-corner finishing material has a plurality of concave grooves formed in the length direction of the long member.

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