JP7154859B2 - Mounting structure of decorative sheet using corner material for wall covering, and mounting method of decorative sheet using corner material for wall covering - Google Patents

Description

The present invention is used in cloth finishing work in which wall covering materials such as cloth are attached to the wall surface to finish, and when used by attaching to the wall base for the purpose of neatly finishing the corner (external corner), or in plastering finishing work. For the purpose of beautifully finishing the corners of the wall, or for the purpose of finishing the edge of the wall neatly, such as raising the edge , installing a decorative sheet that uses a corner material for wall covering that is embedded in a painted wall covering material such as mortar. The present invention relates to a structure and a method of attaching a decorative sheet using a wallcovering corner material .

2. Description of the Related Art Conventionally, for the purpose of beautifully finishing the interior of a building wall, an interior base material such as a parting material, a joint member or a corner material has been used under a decorative sheet such as a cloth or a painted wall material.
When different types of decorative sheets are separated and attached to a wall, or when there is a seam between decorative sheets on the wall, a joint member is placed between the decorative sheets for the purpose of improving the appearance of the seam or for the purpose of preventing peeling of the decorative sheet. be provided.

Patent Document 1 is a technique relating to the boundary structure of a wall of a building, in which a corner fitting 11 is fixed to the boundary between wall boards 1 adjacent to each other, the corner fitting 11 is fixed to the surface of the wall board 1, and the wall board 1 (FIGS. 9 and 10) are disclosed which are provided with contraction absorption slits 10 which are open on both sides.

Patent document 2 is a technique related to a corner base material, and a corner base material 10 has a hard resin main body 11 extending along a corner 1 and is bent at a right angle corresponding to the corner 1 to form a corner base material. A right angle portion 12 having an L-shaped cross section, angle adjustment portions 13 provided on both sides of the vertex of the right angle portion 12, and near these angle adjustment portions 13, extending in the direction opposite to the right angle portion 12, It has a sheet covering portion 14 on the surface of which cloth 21 and wallpaper 31 are attached, and a stepped portion 15 provided between the angle adjusting portion 13 and the sheet covering portion 14 and protruding from the surface of the sheet covering portion 14. Cloth 21 and wallpaper 31 are attached to the surface of the sheet covering portion 14, and the edges of the cloth 21 and wallpaper 31 reach the inside corner of the stepped portion 15, It is arranged along the attached portion 15 (paragraph 0017 thereof), and the corner base material is not limited to those provided at the inside corner portion where the ceiling 2 and the wall 3 intersect each other, as shown in FIG. It is described that the corner base material 10A provided at the outer corner portion where the walls 3B intersect each other may be used, or the corner base material 10A may be provided at the outer corner portion where the ceilings intersect each other (paragraph 0032, FIG. 7). .

Patent document 3 is a technique related to a joint member, and a joint member 1 has an elongated shape and is composed of a lower member 2 and an upper member 3 . The lower member 2 includes a mounting portion 20 provided with an engaged portion 25 for connecting the upper member 3, and strip-shaped side pieces 21, 21 protruding from the base portion of the mounting portion 20 on both sides. (Paragraph 0015), the end portions of the adjacent decorative sheets 4, 4 are overlapped on the side pieces 21, 21 of the lower member 2, and along both side surfaces of the mounting portion 20 erected in the central portion. Let In this state, the side pieces 21, 21 are interposed between the base surface 6a and the decorative sheet 4. As shown in FIG. With the side pieces 21 interposed between the base surface 6a and the decorative sheet 4, the fitting portion 31 of the upper member 3 is forced into the fitting groove 25 formed in the mounting portion 20 of the lower member 2. By inserting the locking portion 31a against the elastic force, the locking portion 31a is fitted into the fitting groove 25 (fitted by the dovetail groove structure), so that the used state is maintained. Thus, as shown in FIG. 5, it is described that the upper member 3 covers the edge of the decorative sheet 4 for use (paragraphs 0027 and 0028).

Japanese Utility Model Laid-Open No. 06-076530 Japanese Patent Application Laid-Open No. 2001-040850 JP 2018-009290 A

Conventionally, as a joint member, there is one in which the side edge of a decorative sheet is inserted by fixing it to an external corner (Patent Document 1), one in which a decorative sheet is attached to the sheet covering portion of a corner base material (Patent Document 2), and a lower Although there is a method in which a decorative sheet is adhered to a member, and then an upper member is attached to a lower member so as to cover the end of the decorative sheet (Patent Document 3), conventionally, the purpose is to improve the aesthetic appearance of the seam and to prevent peeling of the decorative sheet. The joint member is used for the purpose, and there is no product that emphasizes the workability when sticking the joint member and the decorative sheet and the ease of replacement when replacing the decorative sheet.
When attaching the decorative sheet to the wall using the joint member, the joint member is first attached to the wall or the corner, and then the side edges of the decorative sheet are cut. Finally, a decorative sheet is attached to the joint member to complete the assembly.
In the corner tool of Patent Document 1, since the slit is formed with a narrow width, a cutting tool cannot be inserted into the slit, and it is necessary to cut the decorative sheet to fit the slit while imagining the width of the slit. Yes, the work is very complicated and time consuming. Furthermore, since the slit is narrow, the side edges cannot be fixed to the wall with an adhesive or the like, and the side edges of the decorative sheet come off over time and float from the wall.
In addition, in the joint member of Patent Document 3, since the upper member and the lower member are separated, it is necessary to attach the decorative sheet to the lower member after attaching the lower member to the wall, and then attach the upper member to the lower member. Therefore, the number of work steps for mounting is increased, and the work becomes complicated.
Furthermore, in the corner base material of Patent Document 2, since the side edge of the decorative sheet is not covered by the corner base material and can be seen, the decorative sheet tends to be lifted from the wall due to deterioration over time, and the decorative sheet is separated from the wall. When it floats, there is a possibility that aesthetics may be spoiled.

Moreover, when only one of the decorative sheets has deteriorated and broken across the joint member due to aged deterioration and the other decorative sheet can still be used, there is a demand to replace only the damaged decorative sheet. However, as for the corner fitting of Patent Document 1 and the joint member of Patent Document 3, it is necessary to remove the corner fitting and the joint member once, which complicates the replacement work.

Thus, there has been no interior base material that can maintain the aesthetic appearance of the joints between decorative sheets and facilitate the attachment and replacement of the decorative sheets.

Furthermore, construction costs continue to soar in the construction industry due to the construction rush of large-scale commercial facilities and economic recovery. Under these circumstances, there has been a demand for minimizing the number of parts required for interior work in order to reduce construction costs as much as possible without deteriorating quality.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a corner member for wall covering and an interior structure of a corner of a wall, which facilitates the work of attaching and replacing the decorative sheet, prevents the peeling of the decorative sheet, and improves the aesthetic appearance of the seams. is to provide
Furthermore, the object of the present invention is to minimize the number of parts required for interior construction by using the corner material for chamfering the corner of the wall in a plane shape or an arc shape as a joint member for preventing the peeling of the decorative sheet. The object of the present invention is to provide a mounting structure of a decorative sheet using a corner material for wall covering and a method of mounting a decorative sheet using the corner material for wall covering in which the cost is reduced.

The present invention relates to a method of attaching a decorative sheet by fixing a corner member for wall covering to a corner of a wall, wherein the corner member for wall covering is attached to the edge surface of the corner of the wall, and the corner of the wall is attached to the corner. An overhanging ruler portion is integrally formed, and the ruler portion is formed with a recessed groove recessed toward the inside. The edge of the sheet is inserted into the recessed groove, and the recessed groove has a bottom provided substantially vertically from the mounting portion and an inclined portion provided at an angle from the bottom. By inserting and fixing the end of the decorative sheet into the part, the end of the decorative sheet is attached so as to be hidden from the outside.
As for the mounting method, the top surface of the ruler is formed in a planar chamfered shape or an arc shape, and the mounting portion is attached to the corner of the wall so that the corner of the wall is attached to the corner of the wall by the ruler. is chamfered, the decorative sheet is adhered along the mounting portion, and an end portion of the decorative sheet is inserted into the recessed groove.
Here, "chamfering" refers to forming a new surface at the corner of the wall by shaving the corner of the wall, etc. In this embodiment, the corner of the wall is chamfered by attaching a corner material for wall covering to the corner of the wall. It is to process the corner into a shape such as a flat shape or an arc shape.
The "chamfered shape" is the shape of the top surface of the corner member for wall covering, which has an arc shape or a planar shape, and is formed by extrusion molding or the like. When the corner material for wall covering is attached to the corner of the wall, the corner of the wall can be chamfered.
The applicant of the present application devised the shape of the corner material for wall covering to (1) simplify the replacement work of the decorative sheet by integrally molding the corner material for wall covering, and (2) corner material for wall covering. (3) The corners of the wall are chamfered into an arc shape (R surface shape) or a flat shape. The number of parts can be minimized by also using the corner material for the purpose as a joint member for preventing the peeling of the decorative sheet.
According to the present invention, the corners of the wall can be easily chamfered by forming the top surface of the ruler into a chamfered shape such as an arc shape or a flat shape, and the concave shape provided on the ruler can be easily chamfered. By inserting the decorative sheet into the groove, the edges of the decorative sheet are covered with the ruler, preventing the decorative sheet from being peeled off and keeping the aesthetic appearance of the seams between the decorative sheets.
In addition, according to the present invention, since the mounting portion and the ruler portion are integrally formed, it is possible to save time and effort such as removing the member when replacing the decorative sheet, and to easily replace the decorative sheet. becomes.

The wall covering corner material of the present invention is characterized in that the recessed groove portion has a bottom portion provided substantially vertically from the mounting portion and an inclined portion provided at an angle from the bottom portion.
Further, in the corner member for wall covering of the present invention, both ends of the top surface of the ruler portion are curved toward the inside of the ruler portion to form an arc shape.
According to the present invention, both ends of the top surface of the ruler are curved toward the inside of the ruler to form an arc shape like a mushroom cap. Both ends protrude, making it possible to hide the ends of the decorative sheet from the outside. Furthermore, since both ends of the top surface are arc-shaped, a cutting tool, an adhesive nozzle, etc. can be easily inserted into the concave groove, and the decorative sheet can be easily removed from the concave groove.
In addition, since the recessed groove has an inclined portion inclined from the bottom, the inclined portion can be used as a base for supporting a cutting tool or an adhesive nozzle. By using the inclined portion in this way, it is possible to easily and accurately perform work even in a narrow space such as a recessed groove, and it is possible to easily perform the installation work and replacement work of the decorative sheet. becomes.

The corner material for wall covering of the present invention is characterized in that the top surface of the ruler portion is formed in a continuous circular arc shape without unevenness.
Further, in the wall covering corner material of the present invention, the top surface of the ruler portion is formed in an arc shape with a radius of curvature of 4 mm.
Further, the corner material for wall covering of the present invention is characterized in that the top surface of the ruler portion is formed into a planar chamfered shape.
According to the present invention, it is possible to easily form a clean R surface shape or planar shape without irregularities at the corner portion of the wall simply by attaching the corner material for wall covering to the corner portion of the wall, and also to prevent peeling of the decorative sheet. It can also be used as a joint member. Furthermore, the number of parts can be minimized, and the beauty of the seams between the decorative sheets can be maintained.
It is more preferable that the radius of curvature of the top surface of the ruler is 4 mm in order to make the surface of the corner a neat circular arc without irregularities when the corner material for wall covering is attached to the corner of the wall.

The corner material for wall covering of the present invention is characterized in that a cavity is provided inside the ruler portion.
According to the present invention, since the cavity is provided inside the ruler portion, the wall covering corner material can be made lighter and can be formed with a minimum amount of material, thereby reducing the material cost. Become.

The corner material for wall covering of the present invention is characterized in that the cross section thereof is substantially L-shaped, and the angle formed by the pair of mounting portions is 86 to 89 degrees.
According to the present invention, since the cross section of the corner member for wall covering is substantially L-shaped, it can be easily attached to the corner of the wall, and the angle formed by the pair of attachment portions is 86 to 89 degrees. It is possible to attach the corner member for wall covering by bringing the attachment portion and the wall into close contact so as to sandwich the corner of the wall at approximately 90 degrees.

In the corner member for wall covering according to the present invention, the mounting portion is formed such that the thickness thereof gradually decreases from the connection portion with the ruler portion toward the other end.
If the thickness of the mounting portion is too large, the finished surface of the decorative sheet attached to the mounting portion will swell compared to the portion where the wall covering corner material is not attached, spoiling the aesthetic appearance. Insufficient strength. By gradually reducing the thickness, a large step does not occur between the other end of the mounting portion and the wall surface, and it is possible to solve problems such as the appearance of streaks on the surface after the decorative sheet is attached. Become.

In the wall covering corner material of the present invention, the ruler portion is colored in harmony with the decorative sheet.
Since the ruler portion is visible from the outside, it may be colored such as white, black, red, or wood grain to match the decorative sheet. The color may be applied only to the ruler portion, or may be applied to the entire wall covering corner material. The ruler section may be made of a transparent material.

The wall covering corner material of the present invention is characterized by being made of polyvinyl chloride.
According to the present invention, since the corner material for wall covering is made of hard synthetic resin such as polyvinyl chloride, it is possible to increase the strength of the corner portion of the wall. It can be used for the purpose of preventing peeling of the sheet, and for the purpose of forming a beautiful rounded surface shape at the corner of the wall, and also for the purpose of protecting the corner of the wall.

According to the present invention, since the top surface of the ruler is formed in an arc shape, it is possible to appropriately form an R surface shape at the corner of the wall, and the recessed groove provided in the ruler can be decorated. By inserting the sheet, the edges of the decorative sheet are covered with the ruler, preventing the decorative sheet from peeling off, and further improving the appearance of the seams between the decorative sheets. As described above, the mounting structure of the decorative sheet using the wall covering corner material of the present invention and the mounting method of the decorative sheet using the wall covering corner material are the corner material and the joint member for rounding the corner of the wall. It is possible to provide both functions with one member.
In addition, according to the present invention, a wall covering corner material is used that facilitates installation and replacement of the decorative sheet due to the fact that the mounting portion and the ruler portion are integrally formed and the shapes of the grooves and both ends of the top surface of the ruler portion. It is possible to provide a decorative sheet mounting structure and a decorative sheet mounting method using a wall covering corner material .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a wallcovering corner material 100 according to a first embodiment of the present invention; FIG. 2 is a cross-sectional view taken along the line AA showing the wall covering corner material 100 of the embodiment. Fig. 3B is an enlarged view showing the ruler portion 2 of the wallcovering corner material 100 of the embodiment. Fig. 2 is a side view showing the corner member 100 for wall covering of the embodiment; FIG. 4 is a schematic diagram showing a state in which the wallcovering corner material 100 of the embodiment is attached to a corner. It is a schematic diagram which shows the cutting process which attaches the corner material 100 for wallcoverings of the said embodiment to a corner, and cuts the decorative sheet 10. FIG. FIG. 4 is a schematic diagram showing a coating step of applying an adhesive to the end portion of the decorative sheet 10 in the wallcovering corner material 100 of the above-described embodiment. FIG. 3 is a schematic diagram showing a state in which a decorative sheet 10 is attached to the wall covering corner material 100 of the embodiment. FIG. 3 is a schematic diagram showing a state in which a cutting tool S is pressed against an end portion of the decorative sheet 10 to cut the wall covering corner material 100 of the above-described embodiment. FIG. 3 is a schematic diagram showing a state in which the decorative sheet 10 is removed with a cutting tool S in the wallcovering corner material 100 of the above-described embodiment. FIG. 10 is a cross-sectional view taken along line AA showing a corner member 200 for wall covering according to a second embodiment of the present invention; Fig. 10 is a cross-sectional view showing a corner member 300 for wall covering according to a third embodiment of the present invention;

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a perspective view showing a wall covering corner material 100 of the first embodiment of the present invention, and FIG. 2 is a sectional view showing the wall covering corner material 100 of the above embodiment along the line AA. FIG. 3 is an enlarged B view showing the ruler portion 2 of the wall covering corner member 100 of the above embodiment, and FIG. 4 is a side view showing the wall covering corner member 100 of the above embodiment.
The wallcovering corner material 100 of the present embodiment is a long long shape provided for the purpose of improving the aesthetic appearance of joints, preventing peeling of the decorative sheet 10, and forming a beautiful rounded surface shape at the corner P of the wall. It is an interior base material and is made of hard synthetic resin such as polyvinyl chloride.
The wallcovering corner material 100 has a substantially L-shaped cross section (FIG. 2) and extends in the longitudinal direction. It is composed of mounting portions 3 and 3 .

The ruler portion 2 is a member for forming a curved surface shape at the corner P of the wall and for covering and fixing the end portion of the decorative sheet 10. The ruler portion 2 extends upward from the paper surface ( 1 and 2), and the cross section (side surface) of the ruler portion 2 is generally fan-shaped as a whole (FIGS. 2 and 3). When the wall-covering corner material 100 is attached to the corner P of the wall, the ruler part 2 protrudes from the corner P of the wall in an arc shape to form a continuous and beautiful rounded surface shape without unevenness on the corner P. - 特許庁
Since the ruler part 2 is visible from the outside, it is colored in white, black, red, wood grain, etc. so as to match the decorative sheet 10 . The color may be applied only to the ruler portion 2 or may be applied to the entire wall covering corner material 100 . The ruler part 2 may be made of a transparent material.
The ruler portion 2 has a top surface 21 projecting from the corner P, a top side portion 22 continuously provided from the top surface 21, and a concave groove portion 23 for inserting the end portion 10a of the decorative sheet 10. As shown in FIG.

The top surface 21 is an outer surface visible from the outside, and has an arc-shaped cross section (FIGS. 2 and 3). The top surface 21 becomes the top of the head that forms a continuous rounded surface shape without irregularities when the corner material for wall covering 100 is attached to the wall. The curvature radius of the R surface shape is about 4 mm.
The parietal side portions 22 are provided at both ends of the parietal surface 21 and are curved like a mushroom cap toward the inside of the ruler portion 2 from both ends of the parietal surface 21 to form an arc shape. The top side portion 22 has one end connected to the top surface 21 and the other end connected to the concave groove portion 23 . The radius of curvature of the arc shape is approximately 0.5 mm. Since the parietal side portions 22 protrude in an arc shape from both ends of the parietal surface 21, the end portions 10a of the decorative sheet 10 can be preferably hidden from the outside.
The recessed groove portion 23 is a groove for inserting the end portion 10a of the decorative sheet 10, and is provided in a recessed state inside the ruler portion 2 from the top side portion 22 (FIG. 3), and is substantially perpendicular to the mounting portion 3. It has a bottom portion 23a provided in an extended state, and an inclined portion 23b provided inclined from the top side portion 22 to the bottom portion 23a.
The inclined portion 23b is inclined at approximately 45 degrees with respect to the bottom portion 23a. For example, when inserting the end portion 10a of the decorative sheet 10 into the concave groove portion 23 and filling the gap between the concave groove portion 23 and the end portion 10a of the decorative sheet 10 with an adhesive T such as caulking, the nozzle N of the adhesive T is tilted. By arranging along the part 23b and directing the tip of the nozzle N of the adhesive T to the gap between the concave groove part 23 and the end part 10a of the decorative sheet 10, the adhesive T is easily and stably filled even in a narrow place. becomes possible. Further, even when a cutting tool S such as a cutter is inserted into the recessed groove 23 to cut or remove the decorative sheet 10, the tip of the cutting tool S is brought into contact with the inclined part 23b to serve as a support base, so that even a narrow space can be cut. It becomes possible to operate the cutting tool S easily. Furthermore, when replacing the decorative sheet 10, it is necessary to remove the old decorative sheet 10 by scraping out the old adhesive T from the recessed groove 23 using a cutting tool or the like. Since it is provided, the adhesive T can be easily scraped out from the recessed groove 23, and the decorative sheet 10 can be easily taken out.

The mounting portions 3 are a pair of elongated plate-like members for fixing the wallcovering corner member 100 to the wall surface, and are provided by extending from both ends of the ruler portion 2. It has an L-shaped cross section as a whole (Figs. 2 and 3).
The angle formed by the pair of mounting portions 3, 3 is 86 to 89 degrees. Since the angle formed by the pair of mounting portions 3, 3 is smaller than that of the corner P of the wall of approximately 90 degrees, the wall corner P can be It is possible to fix the pair of mounting portions 3, 3 in close contact with the wall so as to sandwich the .
The mounting portion 3 is formed such that its thickness gradually decreases from the connecting portion with the ruler portion 2 toward the other end of the mounting portion 3. is about 0.8 mm in the vicinity of the connecting portion, and about 0.2 mm in thickness at the other end. If the thickness of the mounting portion 3 is too large, the finished surface of the decorative sheet 10 attached to the mounting portion 3 swells compared to the portion where the wall covering corner material 100 is not attached, impairing the aesthetic appearance, and conversely, it is too thin. and the strength of the corner P becomes insufficient. Since the thickness is gradually reduced, a large step does not occur between the other end of the mounting portion 3 and the wall surface, and streaks do not occur on the surface after the decorative sheet 10 is attached.
The length and thickness of the mounting portion 3 can be appropriately selected in consideration of the strength of the mounting portion 3, the degree of fixation to the corner portion P, and the like.
Further, a row of a plurality of circular through-holes 3a is formed on the connecting side of the mounting portion 3 with the ruler portion 2, and a plurality of through-holes 3a are formed along the longitudinal direction of the mounting portion 3 at intervals. The through holes 3a of this embodiment have a diameter of about 4 mm and are provided in two rows along the longitudinal direction, but may be in one row or three or more rows. Also, the through hole 3a can be selected from various shapes such as elliptical, square, rectangular, and polygonal. The size, spacing, and number of rows of the through holes 3a can be selected in consideration of the strength of the mounting portion 3 and the degree of fixation to the corner P. The through hole 3a can be easily formed by punching or the like.
An adhesive layer 3b such as a double-sided tape is provided on the back side of the mounting portion 3 to attach the wallcovering corner material 100 to the wall. It can be attached to the corner P.

(Usage example of wall covering corner material 100)
FIG. 5 is a schematic diagram showing a state in which the wall covering corner material 100 of the above-described embodiment is attached to a corner, and FIG. It is a schematic diagram which shows the cutting process which cut|disconnects. FIG. 7 is a schematic diagram showing an application step of applying an adhesive to the end portion 10a of the decorative sheet 10 in the wallcovering corner material 100 of the above-described embodiment, and FIG. FIG. 3 is a schematic diagram showing a state in which the decorative sheet 10 is attached;
When attaching the decorative sheet 10 to the corner P of the wall using the wall covering corner material 100, first, the adhesive layer 3b provided on the back side of the wall covering corner material 100 is pressed against the wall, and the wall covering corner material 100 is pressed against the wall. The material 100 is attached to the corner P (step 1-1). When the corner member 100 for wallcovering is attached, the corner portion P can be formed into a continuous rounded surface shape without unevenness.
Next, the decorative sheet 10 is attached while being pulled along the wall, the end portion 10a of the decorative sheet 10 is attached along the attachment portion 3, and the end portion 10a is inserted into the concave groove portion 23 of the ruler portion 2 (step 1). -2). When the end portion 10a of the decorative sheet 10 is inserted into the concave groove portion 23 of the ruler portion 2, the end portion 10a of the decorative sheet 10 is covered with the vertex side portion 22 of the ruler portion 2. As shown in FIG. Since the end portion 10a of the decorative sheet 10 cannot be visually recognized from the outside, it is possible to maintain the aesthetic appearance of the corner P, and furthermore it is possible to prevent the end portion 10a of the decorative sheet 10 from peeling off from the wall surface. .
If the end portion 10a of the decorative sheet 10 curves and protrudes from the concave groove portion 23 of the ruler portion 2, the cutting tool S is brought into contact with the inclined portion 23b of the concave groove portion 23, and the concave groove portion 23 is cut using the inclined portion 23b as a fulcrum. The cutting tool S is moved along the longitudinal direction while the tip of the cutting tool S is brought into contact with the joint I between the bottom portion 23a and the mounting portion 3 to cut the decorative sheet 10 (FIG. 6). Using the inclined portion 23b makes it possible to stably move the cutting tool S, so that the end portion 10a of the decorative sheet 10 can be neatly cut in a straight line and can be properly inserted into the concave groove portion 23 of the ruler portion 2. becomes.
After that, the nozzle N of the adhesive T is arranged along the inclined portion 23 b , and the tip of the nozzle N of the adhesive T is directed toward the concave groove 23 . The gap 10a is filled (step 1-3) (FIGS. 7 and 8).

Using the wall covering corner material 100 of the present invention in this way makes it possible to easily form a clean rounded surface shape without irregularities at the corner P of the wall, and also to cover the edge 10a of the decorative sheet 10 so that the corner is smooth. It is possible to maintain the aesthetic appearance of the part P, and furthermore to prevent the peeling of the decorative sheet 10.例文帳に追加
Furthermore, by using the inclined portion 23b of the wearing corner material 100, the decorative sheet 10 can be cut easily and neatly, and the adhesive T can be filled in an accurate position.

FIG. 9 is a schematic diagram showing a state in which the corner member 100 for wall covering according to the above embodiment is cut by pressing a cutting tool S against the end portion of the decorative sheet 10, and FIG. 4 is a schematic diagram showing a state in which the decorative sheet 10 is removed with a cutting tool S from the corner material 100. FIG.
Next, replacement work for replacing the decorative sheet 10 due to deterioration of the decorative sheet 10 or the like will be described.
When replacing an old decorative sheet 10 with a new decorative sheet 10 (FIGS. 9 and 10), a cutting tool S is brought into contact with the recessed groove 23 to which the decorative sheet 10 to be replaced is attached. In this case, the cutting tool S is inserted into the concave groove portion 23 so that the tip of the cutting tool S is aligned with the inclined portion 23b of the concave groove portion 23, and then the cutting tool S is brought into contact with the inclined portion 23b of the concave groove portion 23 and inclined. The portion 23b is used as a fulcrum. Then, a cutting tool S is brought into contact with the end 10a of the old decorative sheet 10 and moved to remove the end 10a of the decorative sheet 10 from the mounting section 3, so that the decorative sheet 10 is lifted from the mounting section 3 and removed from the wall surface (step 2). -1).
After that, the tip of the cutting tool S is brought into contact with the inclined portion 23b of the concave groove portion 23, and the tip of the cutting tool S is moved so as to scrape out the adhesive T filled in the concave groove portion 23 with the inclined portion 23b as a fulcrum. It is removed from the recessed groove 23 (step 2-2).

Thus, by using the wallcovering corner member 100 of the present invention, the decorative sheet can be easily replaced without removing the wallcovering corner member 100 even when the decorative sheet 10 is replaced.
In addition, since the cutting tool S is arranged in the recessed groove 23 using the inclined portion 23b, the cutting tool S can be easily inserted into the recessed groove 23 along the inclined portion 23b. Since it can be used as a fulcrum, it is possible to work in a stable state even when the cutting tool S is moved within a narrow area.

(Second present embodiment)
FIG. 11 is a cross-sectional view taken along the line A--A showing a wall covering corner material 200 according to a second embodiment of the present invention.
In the wallcovering corner material 100 of the first embodiment of the present invention, the inside of the ruler portion 2 is filled (FIG. 2), but even if the cavity 24 is provided inside the ruler portion 2, Good (Fig. 11). The internal cavity 24 has a substantially fan-like shape similar to the shape of the ruler. Since the cavity 24 is provided inside the ruler part 2, the corner member 200 for wall covering is made lighter, and since it is formed with the minimum amount of material, it is possible to reduce the material cost.

(Third present embodiment)
FIG. 12 is a cross-sectional view showing a wall covering corner material 300 according to a third embodiment of the present invention.
In the wallcovering corner members 100 and 200 of the first and second embodiments of the present invention, the top surface 21 of the ruler portion 2 is formed in an arc shape, but it may be formed in a planar chamfered shape. (Fig. 12).
In the wall covering corner material 300 of the present embodiment, an inclined planar chamfer 321 is formed on the top surface of the ruler portion 320 . The chamfer 321 is inclined at approximately 45 degrees with respect to the mounting portion 3, and when mounted on the corner P of the wall, the corner P of the wall is flatly chamfered.
In this manner, the corners of the wall can be formed not only in an arc shape but also in a flat shape, which can be appropriately selected depending on the purpose of use.

As described above, the wall-covering corner members 100 and 200 of the present embodiment are provided at the corner P of the wall, but they can be applied to areas other than the corner P of the wall. For example, by arranging a pair of mounting portions 3 on a straight line, it can be used as a joint member for joints of decorative sheets other than the corner P, and furthermore, by simply changing the arrangement of the pair of mounting portions 3, the outer corner wall can be finished. It can be applied regardless of whether it is used for interior corner wall finishing.

100, 200, 300 corner material for wall covering,
2,320 ruler,
21 parietal surface,
22 parietal side,
23 concave grooves,
23a bottom,
23b inclined portion,
24 cavities,
3 mounting part,
3a through hole,
3b adhesive layer,
321 chamfer,
10 cosmetic sheet,
10a end,
I joint,
N glue nozzle,
P wall corner,
S cutting tool,
T Adhesive

Claims (3)

In the mounting structure of the decorative sheet using the wall covering corner material in which the mounting portion attached to the corner edge surface of the wall and the ruler portion projecting from the corner of the wall are integrally molded, the ruler portion has an inner side A recessed groove portion is formed which is recessed toward the mounting portion, and the recessed groove portion has a bottom portion provided substantially vertically from the mounting portion and an inclined portion provided at an angle from the bottom portion. A mounting structure of a decorative sheet using a corner material for wall covering, characterized in that the end of the decorative sheet is inserted into the inclined portion and fixed so that the end of the decorative sheet is hidden from the outside. The top surface of the ruler portion is formed in a flat chamfered shape or an arc shape, and the inclined portion of the concave groove portion is provided at an angle of approximately 45 degrees with respect to the approximately vertical bottom portion. A mounting structure for a decorative sheet using the corner member for wall covering according to claim 1. In the method of attaching a decorative sheet by fixing a corner member for wall covering to a corner of a wall, the corner member for wall covering includes a mounting portion attached to the edge surface of the corner of the wall and a ruler projecting from the corner of the wall. The ruler portion is integrally formed with a recessed groove recessed toward the inside. is inserted into the recessed groove portion, and the recessed groove portion has a bottom portion provided substantially vertically from the mounting portion and an inclined portion provided at an angle from the bottom portion. A method for attaching a decorative sheet using a corner material for wall covering, characterized in that the edge of the decorative sheet is inserted and fixed so as to be hidden from the outside.

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