JP6197193B2 - Corner material - Google Patents

Description

  The present invention relates to a corner material used by being attached to a corner portion of a building.

Conventionally, for the purpose of concealing joints at the corners of the building, the corner material is attached across the first structure surface and the second structure surface at the corners. Examples of the first structure surface and the second structure surface include a wall surface and a wall surface, a wall surface and a floor surface, or a wall surface and a ceiling surface that intersect at a substantially right angle.
As the corner material, there is known a corner member in which an outer plate and an inner plate having an L-shaped cross section are joined at both ends (Patent Document 1). In the corner member of Patent Document 1, since the L-shaped outer plate and inner plate are joined, a right-angled corner portion (a corner portion in which the first structure surface and the second structure surface form 90 degrees) ).
However, in the actual construction site, the corners are not necessarily a right angle and often have an angle slightly larger than 90 degrees (that is, an obtuse angle) or an angle that is slightly smaller (that is, an acute angle). Further, there may be a case where a right angle portion, an obtuse angle portion, and an acute angle portion are present randomly. For this reason, when the corner member is attached to an obtuse angled corner or an obtuse angled portion of the angled corner, a gap is generated between the inner plate and the wall surface of the corner member, while an acute angled corner or angled corner There is a problem that it is difficult to insert a corner member into an acute angle portion.

In addition, as disclosed in FIG. 3 of Patent Document 2 (the code in this section is a transcription of that of Patent Document 2), the corner material has a base material 3 extending in one direction, This base material 3 is located between the right thick part 3a located on one side, the left thick part 3b located on the other side, and the two thick parts 3a, 3b, and An edge member having an open groove 9 forming an arcuate surface 12 recessed in the thickness direction is known. The edge member is bent at a right angle so that the opening width of the opening groove 9 is widened, and the right thick portion 3a of the base material 3 is attached to one wall surface and the left thick portion 3b is attached to the other wall surface. Attach to the corner. According to the rim material of Patent Document 2, even if the corner of the corner forms an obtuse angle or an acute angle, the thick portion can be made to follow the wall surface by appropriately adjusting the bending angle.
However, in Patent Document 2, since the edge member is bent so that the opening groove 9 forming the arc surface 12 is expanded, the area of the portion to be attached (thick portion) to the wall surface is small, the attachment stability is poor, and the bending is further performed. Since the thickness of the part must be thin, there is a problem that it is difficult to keep the strength high.

Japanese Utility Model Publication No.58-1332060 JP 2004-092316 A

  An object of the present invention is to provide a corner material that can be stably attached not only to a right angle but also to a corner having an obtuse or acute angle portion.

The present invention is an elongated corner material attached across the first structure surface and the second structure surface at the corner of the building, and is attached to the outer wall and the first structure surface. A flexible main body having a first affixing wall and a second affixing wall that is affixed to the second structural surface, and the surface of the first affixing wall is a first of the outer wall in plan view; An acute angle is extended from the side end to the surface of the outer wall, and the surface of the second sticking wall is extended from the second side end of the outer wall to the surface of the outer wall at an acute angle. A gap is provided between the tip of the first sticking wall and the tip of the second sticking wall, and within the range surrounded by the outer wall, the first sticking wall, and the second sticking wall, the cavity communicating with is provided in the gap, the width of the cavity is greater than the length of the same or the gap and the length of the gap between the tip portion A length from the first end from the length and the second end portion to the tip portion of the first patch wall to the tip portion of the second sticking wall, both of the gap between the tip portion length greater than is, tip portion of the first patch wall is formed gradually thinner shape toward the tip end portion of the first patch wall, tip portion of the second sticking wall, the distal end portion of the second patch wall The first sticking wall is formed with a first protrusion protruding from the surface of the first sticking wall, and the base end of the second sticking wall. The 2nd convex part which protrudes from the surface of the 2nd sticking wall is formed.
However, when the surface of the outer wall is an arc surface, the surface of the outer wall serving as the reference for the acute angle means a plane including the first side end portion and the second side end portion of the outer wall.

A preferred corner material of the present invention is for a bathroom.
In another preferable corner material according to the present invention, the width of the hollow portion is larger than the length of the gap between the tip portions.
Other preferred entrance corner material of the present invention, as the angle formed between the virtual extension plane of the first virtual extension plane and the surface of the second sticking wall of the sticking wall surface is 80 ° to 100 °, the first One sticking wall and a second sticking wall are provided.

  The corner material of the present invention is not limited to the corner where the first structure surface and the second structure surface form a right angle, but also to the corner having an obtuse or acute angle portion. 2 Can be pasted along the wall. Such a corner material of the present invention is easy to construct and can be stably attached to the corner portion.

The perspective view which looked at the corner material which concerns on 1st Embodiment of this invention from the upper side front. The top view which looked at the same corner material from the arrow II side (longitudinal direction one side) of FIG. The reference top view which shows the state which affixed the corner material of this invention to the corner part using the adhesive tape. The reference top view which shows the state which affixed the corner material of this invention to the corner part using the adhesive agent. The top view of the corner material which concerns on 2nd Embodiment of this invention. The top view of the corner material which concerns on 3rd Embodiment of this invention. The top view of the corner material which concerns on the 1st example of 4th Embodiment of this invention. The top view of the corner material which concerns on the 2nd example of 4th Embodiment of this invention. The top view of the corner material which concerns on 5th Embodiment of this invention. The top view of the corner material which concerns on 6th Embodiment of this invention. The top view of the corner material which concerns on 7th Embodiment of this invention. The top view of the corner material which concerns on 8th Embodiment of this invention.

The present invention will be described below with reference to the drawings.
In this specification, for convenience, as a term indicating a direction, “inner side” refers to the side approaching the gap between the front end portions of the first and second application walls, and “outer” refers to the opposite side. Point away from the gap. In addition, the first and second ordinal numbers may be added to the term, but this ordinal number is used to distinguish the terms and has no special meaning such as order or superiority. .
In this specification, the description “PPP to QQQ” means “PPP or more and QQQ or less”.

[First Embodiment]
The corner material of the present invention is a building member that is attached across the first structure surface and the second structure surface in the corner portion of the building.
In FIG.1 and FIG.2, the corner material 10 is the elongate shape extended in one direction as a whole. The long shape means a shape in which the length in one direction is sufficiently longer than the length in the other direction (a direction orthogonal to the one direction). The long corner material 10 has a length in one direction of, for example, 50 cm or more, and preferably 100 cm or more. The long corner material 10 is used after being cut to an appropriate length during construction.
The corner material 10 includes an outer wall 3, a first affixing wall 1 that is affixed to the first structure surface of the corner of the building, and a second affixing wall 2 that is affixed to the second structure surface of the corner. And a hollow body 5 is provided inside the main body.
In addition, since the corner material 10 has a long shape extending in one direction, the outer wall 3, the first bonding wall 1, the second bonding wall 2, and the cavity portion 5 similarly extend in one direction, respectively. Accordingly, the corner material 10 has the same cross-sectional shape even when cut at any location in the longitudinal direction, and the cross-sectional shape is the same as the planar shape shown in FIG.

The main body is made of a flexible material. Here, the flexibility refers to a property that is flexible enough to be easily bent by an operator's human power. Since the main body has flexibility, the main body can be bent in the direction of an arrow X or Y, which will be described later, while bending the main body in the longitudinal direction, and the corner material 10 can be made to follow the corner of the corner. The corner material 10 can be attached in close contact with the corner portion without performing the above process. Preferably, the main body has elasticity that returns to its original state when the force is released after bending in the direction of the arrow X or Y. Since the main body has such elasticity, the shape in the direction of the arrow X or Y is stabilized, so that the work of bonding the corner material 10 to the corner portion becomes easy.
For example, the hardness of the main body is 45 to 85, preferably 55 to 75. If the hardness is too small, it becomes difficult to handle the corner material 10, and if the hardness is too large, the corner material 10 may be difficult to deform according to the angle of the corner portion. However, the hardness refers to a value measured by durometer type A according to JIS K 6253.

If the said main body has flexibility, the material will not be specifically limited. For example, the main body is formed using an elastomer, rubber, or the like.
Examples of the elastomer include polystyrene-based thermoplastic elastomers, polyolefin-based thermoplastic elastomers, polyester-based thermoplastic elastomers, polyvinyl chloride-based thermoplastic elastomers, polyurethane-based thermoplastic elastomers, and polyamide-based thermoplastic elastomers.

  Examples of the polystyrene-based thermoplastic elastomer include styrene-butadiene copolymers such as polystyrene-polybutylene-polystyrene (SBS) and polystyrene-poly (ethylene / butylene) -polystyrene (SEBS); polystyrene-polyisoprene-polystyrene ( Styrene-isoprene copolymers such as SIS); polystyrene-poly (ethylene / propylene) (SEP), polystyrene-poly (ethylene / propylene) -polystyrene (SEPS), polystyrene-poly (ethylene-ethylene / propylene) -polystyrene ( Styrene-propylene copolymers such as SEEPS); As the polystyrene-based thermoplastic elastomer, a commercially available product may be used. Examples of the commercially available product include a product name “Septon” manufactured by Kuraray Co., Ltd. and a product name “Lavalon” manufactured by Mitsubishi Chemical Corporation. Can be mentioned.

  Examples of the polyolefin-based thermoplastic elastomer include a propylene block copolymer, an ethylene-propylene copolymer, a propylene-1-hexene copolymer, a propylene-4-methyl-1-pentene copolymer, and an ethylene-methacrylic acid copolymer. Examples thereof include a polymer, an ethylene-methyl methacrylate copolymer, an ethylene-methyl acrylate copolymer, an ethylene-ethyl acrylate copolymer, and a propylene-methacrylic acid copolymer. As the polyolefin-based thermoplastic elastomer, a commercially available product may be used. Examples of the commercially available product include a product name “Thermoran” manufactured by Mitsubishi Chemical Corporation, and a product name “Miralastomer” manufactured by Mitsui Chemicals, Inc. Is mentioned.

  As the polyester-based thermoplastic elastomer, for example, the hard segment is at least one selected from polyethylene terephthalate, prebutylene terephthalate, polymethylene terephthalate, polyethylene naphthalate, polybutylene naphthalate, and the like, and the soft segment is aliphatic. The thing which consists of at least 1 sort (s) chosen from polyester and aliphatic polyether is mentioned. As the polyester-based thermoplastic elastomer, commercially available products may be used. Examples of the commercially available products include trade name “Hytrel” manufactured by Toray Industries, Inc. and trade name “Perprene” manufactured by Toyobo Co., Ltd. It is done.

  Examples of the polyvinyl chloride thermoplastic elastomer include, for example, a hard segment made of high molecular weight polyvinyl chloride and a soft segment made of plasticized polyvinyl chloride (PVC plasticized with a plasticizer); a hard segment Are made of polyvinyl chloride having a partially crosslinked or branched structure, and the soft segment is made of plasticized polyvinyl chloride.

  Examples of the polyurethane thermoplastic elastomer include tolylene diisocyanate-polyester polyol copolymer, tolylene diisocyanate-polyether polyol copolymer, tolylene diisocyanate-caprolactone polyol copolymer, and tolylene diisocyanate-polycarbonate. And 4,4′-diphenylmethane diisocyanate-polyester polyol copolymer, 4,4′-diphenylmethane diisocyanate-polyether polyol copolymer, and the like. As the polyurethane-based thermoplastic elastomer, a commercially available product may be used, and examples of the commercially available product include trade name “Milactoran” manufactured by Nippon Milactolan Co., Ltd.

Examples of the polyamide-based thermoplastic elastomer include those in which the hard segment is made of polyamide such as nylon 12 and the soft segment is made of polyether. Commercially available products may be used as the polyamide-based thermoplastic elastomer, and examples of the commercially available products include products manufactured by Ube Industries, Ltd.
Examples of the rubber include butadiene rubber, natural rubber, isoprene rubber, styrene butadiene rubber, and ethylene-propylene-diene rubber (EPDM).
The elongated corner material 10 can be obtained by extruding the elastomer or the like from a pressure-resistant mold.

The first sticking wall 1 is extended from the first side end portion 31 of the outer wall 3 and extends at an acute angle with respect to the outer wall 3. The second sticking wall 2 extends from the second side end portion 32 of the outer wall 3 and extends at an acute angle with respect to the outer wall 3.
Although the 1st sticking wall 1 and the 2nd sticking wall 2 are extended so that the front-end | tip parts 11 and 21 may face each other, the front-end | tip part 11 of the 1st sticking wall 1 and the front-end | tip part 21 of the 2nd sticking wall 2 Has been separated. Therefore, a gap 6 is provided between the tip 11 of the first sticking wall 1 and the tip 21 of the second sticking wall 2.
Specifically, the surface of the outer wall 3 is a circular arc surface that is recessed inward (toward the cavity 5). Although the width W3 of the outer wall 3 is not specifically limited, For example, it is 8-30 mm, Preferably, it is 10-25 mm. The width W3 of the outer wall 3 is a straight length connecting the first side end 31 and the second side end 32 of the outer wall 3 as seen in the plan view of FIG. In the present embodiment in which a first convex portion 71 and a second convex portion 72 (details of which will be described later) are projected from the surfaces of the first adhesive wall 1 and the second adhesive wall 2, The first side end portion 31 of the outer wall 3 is a portion where the surface of the outer wall 3 and the virtual extension surface of the first sticking wall 1 intersect, and the second side end portion 32 of the outer wall 3 This corresponds to a portion where the virtual extension surface of the sticking wall 2 intersects.

  The base end portion of the first sticking wall 1 is integrated with the first side end portion 31 of the outer wall 3. The first sticking wall 1 extends at an acute angle with respect to the outer wall 3 such that the surface forms an acute angle with the surface of the outer wall 3. The distal end portion 11 of the first sticking wall 1 that is an extended end is a free end portion. The base end portion of the second sticking wall 2 is integrated with the second side end portion 32 of the outer wall 3. The 2nd sticking wall 2 is extended in the acute angle shape with respect to the outer wall 3 so that the surface may form an acute angle with respect to the surface of the outer wall 3. FIG. The distal end portion 21 of the second sticking wall 2 that is an extended end is a free end portion. The acute angle shape means that an angle formed between the surface of the first sticking wall 1 or the surface of the second sticking wall 2 and the surface of the outer wall 3 is an acute angle. When the surface of the outer wall 3 is an arc surface as in the present embodiment, the surfaces of the outer wall 3 serving as the reference for the acute angle are the first side end portion 31 and the second side end portion 32 of the outer wall 3. Means a plane containing. The acute angle is preferably 40 ° to 50 °, more preferably 42.5 ° to 47.5 °, and particularly preferably about 45 °.

The first affixing wall 1 and the second affixing wall 2 are extended from the first side end 31 and the second side end 32 of the outer wall 3 so as to face each other. The tip portion 11a including the tip portion 11 of the first sticking wall 1 is independent of the central portion 3a of the outer wall 3, and the tip portion 21a including the tip portion 21 of the second sticking wall 2 is also independent of the center portion 3a of the outer wall 3. doing. The tip portion 11a of the first sticking wall 1 and the tip portion 21a of the second sticking wall 2 are gradually formed thinner toward the tip portions 11 and 21, respectively. In the example of illustration, the tip part 11a of the 1st sticking wall 1 and the tip part 21a of the 2nd sticking wall 2 are formed in the tip shape. The distal end portion 11 of the first pasting wall 1 and the distal end portion 21 of the second pasting wall 2 are not integrated, and there is a gap 6 between the distal end portions 11 and 21. The length W6 of the gap 6 is not particularly limited, but is, for example, more than zero and 5 mm or less, preferably 0.2 mm to 3 mm, and more preferably 0.5 mm to 2 mm. If the gap 6 does not exist, it becomes difficult to bend the corner material 10 in the direction in which the first side end portion 31 and the second side end portion 32 are separated (that is, the direction in which the end portions 11 and 21 approach each other), If the gap 6 is too large, the areas of the first application wall 1 and the second application wall 2 are relatively small, and the attachment stability of the corner material 10 may be deteriorated. The length W6 of the gap 6 is a straight length connecting the tip portion 11 of the first sticking wall 1 and the tip portion 21 of the second sticking wall 2 as seen in the plan view of FIG.
As shown in FIG. 2, the length from the first side end portion 31 to the tip end portion 11 of the first sticking wall 1 and the length from the second side end portion 32 to the tip end portion 21 of the second sticking wall 2. Is larger than the length of the gap 6 between the tip portions.

  The surface of the first sticking wall 1 and the surface of the second sticking wall 2 are both flat. The first affixing wall 1 and the second affixing wall 2 are provided such that an angle α formed by the virtual extension surface of the first affixation wall 1 and the virtual extension surface of the second affixation wall 2 is 80 degrees to 100 degrees. ing. Preferably, the angle α formed by the virtual extension surface of the first sticking wall 1 and the virtual extension face of the second sticking wall 2 is 85 ° to 95 °, more preferably approximately 90 °. A first affixing wall 1 and a second affixing wall 2 are provided. The virtual extension surface of the first sticking wall 1 means a plane including the surface of the first sticking wall 1, and the virtual extension surface of the second sticking wall 2 means a plane including the surface of the second sticking wall 2.

A cavity 5 is formed inside the main body. The hollow portion 5 is surrounded by the outer wall 3, the first sticking wall 1, and the second sticking wall 2. More specifically, the hollow portion 5 is a space surrounded by the inner surface of the central portion 3 a of the outer wall 3, the inner surface of the tip portion 11 a of the first sticking wall 1, and the inner surface of the tip portion 21 a of the second sticking wall 2. Hereinafter, the three inner surfaces constituting the cavity 5 may be referred to as inner surfaces of the main body.
The cavity 5 and the gap 6 communicate with each other. In other words, the hollow portion 5 is not a closed space but has an opening in a part thereof, and the opening of the hollow portion 5 is between the front end portions 11 and 21 of the first sticking wall 1 and the second sticking wall 2. The gap 6 is.

In the illustrated example, of the inner surface of the main body, the inner surface of the central portion 3a of the outer wall 3 is formed by connecting the distal end portion 11 of the first pasting wall 1 and the distal end portion 21 of the second pasting wall 2 with reference to the plan view of FIG. It is parallel to the connected straight line.
A width W5 of the hollow portion 5 is formed larger than the gap 6 between the tip portions 11 and 21. The width W5 of the hollow portion 5 is a straight line (virtual straight line) parallel to a straight line connecting the tip portion 11 of the first sticking wall 1 and the tip portion 21 of the second sticking wall 2 as seen in the plan view of FIG. Is the largest of the straight line lengths between two intersections between the virtual straight line and the inner surface of the main body. The width W5 of the cavity 5 is, for example, 1 mm to 5 mm, and preferably 2 mm to 4 mm.

A central portion 3a of the outer wall 3 corresponding to the hollow portion 5 is thin. In the present embodiment in which the surface of the outer wall 3 is a circular arc surface recessed inward and the inner surface of the central portion 3a of the outer wall 3 is flat (in a straight line in plan view), the center of the outer wall 3 The thickness of the portion 3a is not uniform, and the thickness of the central portion in the width direction of the outer wall 3 is the smallest.
The thickness T3 of the central portion in the width direction of the outer wall 3 is not particularly limited, and is, for example, 0.5 mm to 5 mm, preferably 0.8 mm to 3.5 mm, more preferably 1 mm to 3 mm. is there. If the thickness T3 of the central portion in the width direction of the outer wall 3 is too small, the corner material 10 is inadvertently bent at the center portion, causing streaks on the surface of the outer wall 3, and the appearance of the corner material 10 is improved. On the other hand, if the thickness T3 is too large, the corner material 10 may be difficult to bend.

Furthermore, the 1st convex part 71 which protrudes from the surface of the 1st sticking wall 1 is formed in the base end part of the said 1st sticking wall 1. As shown in FIG. Further, a second convex portion 72 that protrudes from the surface of the second pasting wall 2 is formed at the proximal end portion of the second pasting wall 2. By providing the 1st convex part 71 and the 2nd convex part 72, the adhesive agent was apply | coated to the 1st sticking wall 1 and the 2nd sticking wall 2, or the adhesive tape was affixed, and the corner material 10 was attached to the corner area. In this case, the gap between the first side end portion 31 of the outer wall 3 and the first structural surface and the gap between the second side end portion 32 of the outer wall 3 and the second structural surface can be closed. Therefore, the 1st convex part 71 and the 2nd convex part 72 have the effect | action which conceals the edge part of an adhesive agent or an adhesive tape, and have the effect of improving the beauty | look after construction.
The first convex portion 71 protrudes from the surface of the first pasting wall 1 while forming an obtuse angle with respect to the surface of the first pasting wall 1. Similarly, the second convex portion 72 protrudes from the surface of the second sticking wall 2 while forming an obtuse angle with respect to the surface of the second sticking wall 2. The tops of the first convex portion 71 and the second convex portion 72 may have an arc shape, but an angular shape is preferable, and it is more preferable that the first convex portion 71 and the second convex portion 72 have a sharp acute angle as shown in the illustrated example. By making these apexes angular, the first convex portion 71 and the second convex portion 72 can easily follow the first structural surface and the second structural surface, and conceal the ends of the adhesive and the adhesive tape. Becomes higher. In particular, by making these apexes sharp and sharp, high concealability can be ensured even if the area ratio of the convex portions 71 and 72 to the pasting walls 1 and 2 is relatively small, and the first pasting wall 1 and The adhesion area of the 2nd sticking wall 2 can be enlarged relatively.
The projecting heights H71 and H72 of the first convex portion 71 and the second convex portion 72 are not particularly limited, but are independently, for example, 0.1 mm to 2 mm, and preferably 0.3 mm to 1. 5 mm. If the protruding heights H71 and H72 of the first convex portion 71 and the second convex portion 72 are too small, an adhesive or an adhesive is used when the corner material 10 is attached to the corner portion using an adhesive or an adhesive tape. There exists a possibility that the effect | action which conceals the edge part of a tape may fall. On the other hand, if each protrusion height H71, H72 of the 1st convex part 71 and the 2nd convex part 72 is too large, when attaching the corner material 10 to a corner part, the 1st sticking wall 1 and the 2nd sticking wall 2 will be. There is a possibility that it is difficult to adhere to the first structure surface and the second structure surface.
In the illustrated example, the shape of the corner material 10 is symmetrical at the center in the width direction.

Since the corner member 10 having the above configuration has flexibility, as shown by an arrow X in FIG. 2, the direction in which the distal end portion 11 of the first pasting wall 1 and the distal end portion 21 of the second pasting wall 2 are separated from each other. 2, and as indicated by an arrow Y in FIG. 2, the distal end portion 11 of the first pasting wall 1 and the distal end portion 21 of the second pasting wall 2 can be bent closer to each other. When the corner material 10 is bent in a direction X in which the tip 11 of the first sticking wall 1 and the tip 21 of the second sticking wall 2 are separated, the virtual extension surface of the first sticking wall 1 and the second sticking wall 2 since the angle formed α is small Kunar with the virtual extension surface may be along the first sticking wall first surface and a second sticking wall 2 of the surface to the inside corner portion, which forms a sharp angle. When the corner material 10 is bent in the direction Y in which the distal end portion 11 of the first pasting wall 1 and the distal end portion 21 of the second pasting wall 2 approach each other, the virtual extension surface of the first pasting wall 1 and the second pasting wall 2 since the angle formed α is large Kunar with the virtual extension surface may be along the first sticking wall first surface and a second sticking wall 2 of the surface to the inside corner portion forms a blunt angle.
Furthermore, even in a corner where a right angle portion, an obtuse angle portion, and an acute angle portion are randomly present, the corner material 10 is partially indicated by an arrow X direction or an arrow Y direction. It is also possible to fit the corner material 10 along the entire corner without gaps by appropriately bending it.

The corner material 10 of the present invention is used by being attached to a corner portion of a building.
Specifically, the corner material 10 is attached across the first structure surface and the second structure surface in the corner portion of the building. Examples of the first structure surface and the second structure surface include a wall surface and a wall surface, a wall surface and a floor surface, or a wall surface and a ceiling surface that intersect at a substantially right angle. In the corner material 10 of the present invention, the first affixing wall 1 and the second affixing wall 2 are in close contact with each other along the first structure surface and the second structure surface, and has excellent sealing performance with respect to the corner of the corner. Since it is possible to follow the whole without any corners, it can be suitably used in corners where waterproofness is required, such as bathrooms, kitchens, washrooms, and toilets. In particular, the corner material 10 of the present invention can be suitably used for a corner portion of a bathroom where particularly high waterproof properties are required.
The corner member 10 can be attached to the corner portion by pasting the first pasting wall 1 to the first structural surface and pasting the second pasting wall 2 to the second structural surface.
The method of attaching the first sticking wall 1 and the second sticking wall 2 to each structural surface is not particularly limited, but typically, bonding using an adhesive or an adhesive tape or both an adhesive and an adhesive tape is performed. Can be mentioned.

FIG. 3 is a reference plan view showing the main part of the building in which the corner material 10 is attached to the corner portion 9 using the adhesive tape 98. In FIG. 3, the hatched portion indicates the adhesive tape 98.
In FIG. 3, the corner 9 is composed of, for example, two wall surfaces 91 and 92 that intersect at a substantially right angle. On the wall surfaces 91 and 92, surface covering materials 93 and 94 such as wallpaper and waterproof decorative boards may be attached as necessary. As shown in the figure, when the surface material 93 is affixed to the wall surface 91, the surface of the surface material 93 corresponds to the first structure surface, and when the surface material 94 is affixed to the wall surface 92, The surface of the material 94 corresponds to the second structure surface.
An adhesive tape 98 provided with an adhesive on both sides is attached to the surface of the first affixing wall 1 of the corner material 10, and the first affixing wall 1 is attached to the first structural surface via the adhesive tape 98. It is glued. Similarly, an adhesive tape 98 provided with an adhesive on both sides is attached to the surface of the second sticking wall 2 of the corner 10, and the second sticking wall 2 is secondly attached via the adhesive tape 98. Bonded to the structural surface. When the protruding heights of the first convex portion 71 and the second convex portion 72 are larger than the thickness of the adhesive tape 98, the first convex portion 71 and the second convex portion 72 are the first structural surface and the second structural surface. The first structure surface and the second structure surface are in close contact with each other while being pressed. For this reason, a gap does not occur between the first side end 31 of the outer wall 3 and the first structural surface and between the second side end 32 of the outer wall 3 and the second structural surface, and the corner material 10 is used. Thus, the corner 9 can be sealed well. At this time, when the first convex portion 71 and the second convex portion 72 have an angular shape, the first convex portion 71 and the second convex portion 72 are more likely to be deformed by pressing toward the top, so that the first convex portion 71 and the second convex portion 72 are the first structural surface. And it comes to contact | adhere to the 2nd structure surface reliably. For this reason, even when the protruding heights of the first convex portion 71 and the second convex portion 72 are larger than the thickness of the adhesive tape 98, the first convex portion 71 and the second convex portion are formed on the first structural surface and the second structural surface. The convex part 72 can be stuck closely.
By the way, the corner 9 is not necessarily a right angle, and an angle formed by the first structure surface and the second structure surface is greater than 90 degrees (for example, an obtuse angle greater than 90 degrees and less than 95 degrees) or There may be a small angle (for example, an acute angle of 85 degrees or more and less than 90 degrees). Such an obtuse or acute angle portion may extend over the entire longitudinal direction of the corner, or may exist in a portion of the corner of the corner.
In this regard, the corner member 10 of the present invention has the tip portions 11 and 21 of the first and second sticking walls 1 and 2 independent of each other, and has a gap 6 between them. Since the cavity 5 larger than the gap 6 is provided at the corner 6, the corner material 10 can be easily bent in the two directions X and Y as described above. For this reason, the corner material 10 can be affixed along the first affixing wall 1 and the second affixing wall 2 also to the corner 9 having an obtuse or acute angle portion. Therefore, it is easy to attach the corner material 10, and the corner material 10 can be stably attached to the corner portion 9 without being an expert.
Moreover, since the corner material 10 of the present invention has a relatively large area of the first affixing wall 1 and the second affixing wall 2, the affixing area with respect to the corner 9 can be increased and stably attached. High attachment strength can be maintained after pasting.

FIG. 4 is a reference plan view showing a main part of a building in which the corner material 10 is attached to the corner portion using the adhesive 99. In FIG. 4, the portions with innumerable dots indicate the adhesive 99.
Even when the corner material 10 is pasted using the adhesive 99, the first convex portion 71 and the second convex portion 72 are deformed so that the gap is not generated, as in the case of pasting with the adhesive tape 98. Moreover, the corner material 10 can be easily and stably attached to the corner portion 9. Furthermore, when the corner material 10 is attached using the adhesive 99, the adhesive 99 enters the cavity 5 as shown in FIG. The material 10 can be firmly fixed to the corner 9. In particular, since the length W6 of the gap 6 between the distal end portion 11 of the first pasting wall 1 and the distal end portion 21 of the second pasting wall 2 is smaller than the width W5 of the hollow portion 5, it enters the hollow portion 5. The anchor effect of the adhesive 99 becomes higher.

  The corner material of the present invention is not limited to the first embodiment, and can be variously modified within the range intended by the present invention. Hereinafter, although other embodiment of this invention is described, description is abbreviate | omitted about the structure, effect, and usage method similar to the said 1st Embodiment, and a term and a code | symbol are used as it is.

[Second Embodiment]
In the first embodiment, the inner surface of the central portion 3a of the outer wall 3 is flat. For example, as shown in FIG. 5, the inner surface of the central portion 3a of the outer wall 3 constituting the cavity 5 is an arc. It may be planar. By making the inner surface of the central portion 3a into a circular arc shape, the cavity 5 can be stably formed.

[Third Embodiment]
In the said 1st Embodiment, although the 1st convex part 71 and the 2nd convex part 72 protrude at an obtuse angle with respect to the surface of the 1st sticking wall 1 and the 2nd sticking wall 2, for example, FIG. As shown in FIG. 1, the first convex portion 71 and the second convex portion 72 may protrude while forming an acute angle with respect to the surfaces of the first and second sticking walls 1 and 2. In this case, each top part of the 1st convex part 71 and the 2nd convex part 72 protrudes toward the inner side. According to the corner material 10 of the present embodiment, one side edge of the adhesive tape can be inserted into the C-shaped pockets 711 and 721 formed by the first convex portion 71 and the second convex portion 72. The effect of concealing the end of the adhesive tape can be enhanced.

[Fourth Embodiment]
In the said 1st Embodiment, although the surface of the outer wall 3 is made into the circular arc surface dented inward, for example, as shown in FIG. 7, the surface of the outer wall 3 is outside (side away from the cavity part 5). You may be made into the circular arc surface swelled to the side. Moreover, as shown in FIG. 8, the surface of the outer wall 3 may be a flat surface. The shape of the surface of the outer wall 3 is not limited to the configuration shown in each embodiment, and can be changed to an appropriate shape in consideration of, for example, the design of the corners.

[Fifth Embodiment]
In the first embodiment, the thickness of the central portion 3a of the outer wall 3 is not uniform, and the thickness of the central portion in the width direction of the outer wall 3 is the smallest, but the thickness of the central portion 3a of the outer wall 3 is small. It may be uniform.
For example, as shown in FIG. 9, the corner member 10 having a uniform thickness at the center portion 3 a of the outer wall 3 is formed on the outer wall 3 having an arcuate surface that is recessed inward. The inner surface of the central portion 3a is an arc surface bulging inward, and the curvature of the surface of the outer wall 3 and the curvature of the inner surface of the outer wall 3 are the same. In the case of the outer wall 3 having a flat surface as shown in FIG. 8, the inner surface of the central portion 3a of the outer wall 3 is formed into a flat surface parallel to the surface, and as shown in FIG. In the case of the outer wall 3 having an arc surface whose surface swells outward, the inner wall of the central portion 3a of the outer wall 3 is formed into an arc surface recessed outward, so that the thickness of the central portion 3a of the outer wall 3 is uniform. Can be obtained. The corner material 10 having the uniform thickness of the central portion 3a of the outer wall 3 is less likely to cause stress concentration when bent in the two directions X and Y, and hardly causes streak marks on the surface of the outer wall 3. Become.

[Sixth Embodiment]
In the said 1st Embodiment, although the 1st convex part 71 and the 2nd convex part 72 are provided in the 1st sticking wall 1 and the 2nd sticking wall 2, for example, as shown in FIG. The corner material 10 in which 71 and the 2nd convex part 72 are not provided may be sufficient. The corner material 10 of the present embodiment has a relatively simple shape, so that it can be manufactured more easily and the manufacturing cost can be reduced.

[Seventh Embodiment]
Further, as shown in FIG. 11, a desired layer 8 may be provided on the surface of the outer wall 3. Examples of the desired layer 8 include a decorative layer, a fungicidal layer, and an antifouling layer that have undergone design printing. Although not particularly illustrated, a desired layer 8 such as the antifungal layer or the antifouling layer may be provided on the surface of the first affixing wall 1, the surface of the second affixing wall 2, or the entire surface of the main body. . By providing the desired layer 8, the corner material 10 having various designs can be provided without changing the material or color of the main body.

[Eighth Embodiment]
In the said 1st Embodiment, although the width | variety of the cavity part 5 is larger than the clearance gap 6 between the front-end | tip parts 11 and 21 of the 1st sticking wall 1 and the 2nd sticking wall 2, as shown in FIG. The width may be the same as the gap 6 between the tip portions 11 and 21. But since each surface of the 1st sticking wall 1 and the 2nd sticking wall 2 can be formed in a comparatively large area, the width | variety of the cavity part 5 is formed larger than the said clearance gap 6 like each said embodiment. It is preferable.

DESCRIPTION OF SYMBOLS 1 1st sticking wall 11 Tip part of 1st sticking wall 2 Second sticking wall 21 Tip part of 2nd sticking wall 3 Outer wall 31 First side edge part of outer wall 32 Second side edge part of outer wall 5 Cavity part 6 Crevice 71 First convex portion 72 Second convex portion 9 Corner portion 10 Corner portion material

Claims (4)

In the long-shaped corner material attached across the first structure surface and the second structure surface in the corner of the building,
A flexible main body having an outer wall, a first affixing wall affixed to the first structure surface, and a second affixation wall affixed to the second structure surface;
In plan view, the surface of the first sticking wall extends from the first side end of the outer wall at an acute angle with respect to the surface of the outer wall, and the surface of the second sticking wall is the first of the outer wall. It extends at an acute angle with respect to the surface of the outer wall from the two side ends,
A gap is provided between the tip of the first sticking wall and the tip of the second sticking wall, and the gap is within a range surrounded by the outer wall, the first sticking wall, and the second sticking wall. cavity portion communicating is provided, the width of the cavity is greater than the length of the gap length and the same or the gap between the tip portion, a first sticking wall from the first end And the length from the second side end to the tip of the second sticking wall are both larger than the length of the gap between the tips,
The tip portion of the first sticking wall is gradually formed thinner toward the tip end portion of the first sticking wall, and the tip portion of the second sticking wall gradually becomes closer to the tip portion of the second sticking wall. It is formed in a thin shape,
A first protrusion protruding from the surface of the first sticking wall is formed at the base end of the first sticking wall, and a base end of the second sticking wall protrudes from the surface of the second sticking wall. The corner material in which the 2nd convex part is formed.
However, when the surface of the outer wall is an arc surface, the surface of the outer wall serving as the reference for the acute angle means a plane including the first side end portion and the second side end portion of the outer wall.   The corner material of Claim 1 which is an object for bathrooms. The corner material according to claim 1 or 2, wherein a width of the hollow portion is larger than a length of a gap between the tip portions. As the angle formed between the virtual extension plane of the first virtual extension plane and the surface of the second sticking wall of the sticking wall surface is 80 ° to 100 °, the first patch wall and the second patch wall is provided The corner material according to any one of claims 1 to 3.

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