JP7070877B2 - Construction method of corner members and wallpaper - Google Patents

Description

The present invention relates to a corner member installed together with a decorative member which is either a skirting board or a peripheral edge, and a method of constructing wallpaper.

Techniques related to corner members have been proposed. For example, Patent Document 1 discloses two forms of a corner member for outside corners and a corner member for inside corners. The first protruding corner member is composed of an upper horizontal piece and a hanging piece. At least one of the upper horizontal piece and the hanging piece is provided with tapered portions on both the left and right edges. The first protruding corner member is provided with a holding piece that hangs from the inner edge of the upper horizontal piece substantially in parallel with the hanging piece. The holding piece, the hanging piece and the upper horizontal piece hold the front and back surfaces and the upper wood end face of the corner side edge of the skirting board. A lower horizontal piece is provided below the hanging piece. The upper horizontal piece and the lower horizontal piece sandwich the upper wood end face and the lower wood end face of the skirting board. The second corner member for the inside corner is composed of an upper horizontal piece and a hanging piece. At least one of the upper horizontal piece and the hanging piece is provided with tapered portions on both the left and right edges. A protrusion is formed on the back surface of the second corner member for entering a corner. The protrusion is fitted into the interior material. A jaw is formed on the protrusion, which is substantially parallel to the drooping piece. The hanging piece and chin hold the skirting board. A lower horizontal piece is provided on the second corner member. The upper horizontal piece and the lower horizontal piece hold the skirting board. In Patent Document 1, the first corner member for inside corner has the same basic configuration as the first corner member for outside corner except that the shape corresponds to the inside corner portion, and the second It is said that the corner member for the outside corner has the same basic configuration as the second corner member for the inside corner, except that the shape corresponds to the outside corner portion.

Japanese Unexamined Patent Publication No. 2009-281052

In a building, decorative members are provided at the lower or upper ends of a plurality of walls forming a space such as a room or a corridor. For example, in a corner portion such as an inside corner or an outside corner where two first wall surfaces and a second wall surface meet at a predetermined angle, a corner member may be installed together with a decorative member. The corner member covers the first end portion of the first decorative member, the second end portion of the second decorative member, and the corner space. The first decorative member is a decorative member provided on the first wall surface. The first end portion of the first decorative member is an end portion on the side of the second wall surface of the first decorative member. The second decorative member is a decorative member provided on the second wall surface. The second end portion of the second decorative member is an end portion on the side of the first wall surface of the second decorative member. The corner space is a space corresponding to the above-mentioned corner portion and adjacent to the first end portion and the second end portion. The inventor examined a new corner member capable of improving the work efficiency at the construction site, targeting the work related to the corner member performed at the construction site. At that time, the inventor considered that the wallpaper could be smoothly constructed at the construction site.

An object of the present invention is to provide a new method for constructing corner members and wallpaper that can improve work efficiency at a construction site.

One aspect of the present invention is a corner member installed together with the decorative member at a corner portion of a first wall surface and a second wall surface in a building provided with a decorative member which is either a skirting board or a peripheral edge. In the installed state where the corner member is installed at the corner portion, the first end portion on the side of the second wall surface of the first decorative member as the decorative member provided on the first wall surface and the second wall surface. A second end portion on the side of the first wall surface of the second decorative member as the decorative member provided in the above, and a corner corresponding to the corner portion and adjacent to the first end portion and the second end portion. The covering member includes a space and a covering member, and the covering member covers the first end portion and the corner space from the side of the front surface opposite to the back surface, which is the side of the first wall surface of the first decorative member. Covering the second end and the corner space from the side of the surface opposite to the back surface of the first covering portion made of hard synthetic resin and the side of the second wall surface of the second decorative member. The second covering portion made of the hard synthetic resin, the first wall surface, and the center side in the height direction of the second wall surface, covering the first end portion, the corner space, and the second end portion. In the covering member, the first coating portion, the second coating portion, and the third coating portion are integrated, and in the third coating portion, the third coating portion made of a hard synthetic resin is included. The central surface in the height direction of the first wall surface and the edges of the first wall surface and the second wall surface along the second wall surface is each of the first wall surface and the second wall surface. It is a corner member having an inclined surface inclined toward the end side opposite to the central side in the height direction toward the side.

Another aspect of the present invention is that the corner member installed together with the decorative member is at the corner of the first wall surface and the second wall surface in the building provided with the decorative member which is either a skirting board or a peripheral edge. The first end portion of the first decorative member as the decorative member provided on the first wall surface on the side of the second wall surface and the decorative member provided on the second wall surface in the installed state. A coating that covers a second end portion of the second decorative member as a member, which is on the side of the first wall surface, and a corner space corresponding to the corner portion and adjacent to the first end portion and the second end portion. The covering member is made of synthetic resin and covers the first end portion and the corner space from the side of the front surface opposite to the back surface of the first decorative member, which is the side of the first wall surface. The synthetic resin second covering the second end and the corner space from the side of the first covering portion and the front surface opposite to the back surface of the second decorative member, which is the side of the second wall surface. The synthetic resin third covering portion that covers the first end portion, the corner space, and the second end portion from the center side of the covering portion and the first wall surface and the second wall surface in the height direction. The first coating portion, the second coating portion, and the third coating portion are integrated, and in the third coating portion, the first wall surface and the second wall surface along the second wall surface are described. The surface of the one wall surface and the edge of each side of the second wall surface on the central side in the height direction is opposite to the central side in the height direction toward each side of the first wall surface and the second wall surface. The corner member, which is an inclined surface inclined toward the end side of the wall, is installed on the corner portion of the first wall surface provided with the first decorative member and the second wall surface provided with the second decorative member. The first step of covering the corner space with the covering member, the step of linearly cutting the wallpaper attached to the first wall surface along the first decorative member and the corner member, and the second step. It is a method of constructing a wallpaper including a second step including a step of linearly cutting a wallpaper attached to a wall surface along the second decorative member and the corner member.

According to the above-mentioned construction method of the corner member and the wallpaper, it is possible to prevent or suppress the occurrence of a step based on the thickness of the third covering portion at the boundary position which is not covered by the third covering portion among the following side surfaces. .. The above-mentioned side surfaces are the side surfaces on the central side in the height direction of the first decorative member and the second decorative member. For example, in a building, wallpaper may be attached to the first wall surface and the second wall surface. By eliminating the above-mentioned steps, it is possible to smoothly construct the wallpaper at the construction site. The wallpaper attached to the first wall surface can be cut linearly along the first decorative member and the corner member. The wallpaper attached to the second wall surface can be cut linearly along the second decorative member and the corner member. Unlike the above-mentioned corner member, the corner member whose edge portion of the third covering portion is not an inclined surface may require additional work such as removing the corner member from the corner portion when cutting the wallpaper. is assumed. Further, the first decorative member and the second decorative member are not provided in each of the following areas. Each of the above-mentioned regions is a region of the first wall surface and a region of the second wall surface corresponding to the angular space. Therefore, in the case of a corner member whose edge portion of the third covering portion is not an inclined surface, when the wallpaper is linearly cut along either the first decorative member or the second decorative member in each of the above-mentioned regions, it is as follows. It is also expected that various tools will have to be used separately. The above-mentioned tools are tools for assisting the linear cutting of the wallpaper in each of the above-mentioned areas. With the corner member described above, such additional work may not be performed, and the above-mentioned tool is unnecessary.

According to the present invention, it is possible to obtain a new method of constructing a corner member and wallpaper that can improve work efficiency at a construction site.

It is a perspective view which shows an example of the schematic structure of the installation structure which installed the corner member in the corner part by the 1st wall surface and the 2nd wall surface. Corresponds to the case where the corner is a corner. The apex of the space in the building where the first wall surface, the second wall surface and the floor surface meet is shown. It is a perspective view which shows an example of the process of installing a corner member in a corner. The state where the support member is accommodated in the accommodation space and the covering member is attached is shown. The accommodation space corresponds to the inside corner shown in FIG. The apex of the space in the building where the first wall surface, the second wall surface and the floor surface meet is shown. It is a perspective view which shows an example of the schematic structure of a corner member. Indicates a state in which the covering member is supported by the support member. A state in which the corner member is viewed from the side surface side of the support member and the covering member and the center side in the height direction is shown. It is a perspective view which shows an example of the schematic structure of a support member. The state where the support member is viewed from the detached side (front side of the support member) in the attachment / detachment direction and the center side in the height direction is shown. FIG. 5 is a cross-sectional view taken along the line FF shown in FIG. It is a bottom view of the corner member installed in the inside corner. Corresponds to the state where the corner member, the first decorative member, and the second decorative member shown in FIG. 1 are viewed from the end side (floor side) in the height direction. It is a perspective view which shows an example of the schematic structure of the covering member. The state where the covering member is viewed from the mounting side (the back side of the covering member) in the attachment / detachment direction and the center side in the height direction is shown. FIG. 3 is a sectional view taken along line DD shown in FIG. It is a bottom view of the corner member installed in the inside corner. A state in which the first contact portion and the second contact portion are deformed is shown as compared with the state shown in FIG. Corresponds to the state where the corner member, the first decorative member, and the second decorative member shown in FIG. 1 are viewed from the end side (floor side) in the height direction. It is a partial perspective view which shows the other example of the schematic structure of a part of a contact part and a deformation part. The upper row corresponds to the case where the intervals A and B shown in FIG. 2 are the intervals A1 and B1 shown in FIG. The lower part corresponds to the case where the intervals A and B shown in FIG. 2 are the intervals A2 and B2 shown in FIG. The upper part is a partially enlarged perspective view showing another example of the schematic configuration of the corner member installed in the inside corner. Corresponds to a corner member in which the first surface of the edge portion is a horizontal plane in the third covering portion of the covering member. The illustrated range corresponds to part C shown in FIG. The lower part is an enlarged perspective view of part C shown in FIG. It is a perspective view which shows the other example of the schematic structure of the installation structure which installed the corner member in the corner part by the 1st wall surface and the 2nd wall surface. Corresponds to the case where the corner is a protruding corner. The apex of the space in the building where the first wall surface, the second wall surface and the floor surface meet is shown. The upper row shows a state in which the corner member is installed in the protruding corner. The lower part is an enlarged perspective view of part E shown in the upper part. It is a perspective view which shows an example of the schematic structure of the corner space in the case where the corner portion by the first wall surface and the second wall surface is a protruding corner. The angular space corresponds to the protruding corner shown in the upper part of FIG. A state in which the first decorative member is provided on the first wall surface and the second decorative member is provided on the second wall surface is shown.

An embodiment for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the configurations described below, and various configurations can be adopted in the same technical idea. For example, a part of the configuration shown below may be omitted or replaced with another configuration or the like. Other configurations may be included.

<Corner member>
The corner member 10 will be described with reference to FIGS. 1 to 3. In FIGS. 1 and 2 and FIGS. 5 and 8, which will be described later, the hatching shows a cross section. In a building such as a house, decorative members are provided at the lower end or the upper end of a plurality of wall surfaces forming a space such as a room or a corridor. The decorative member is a concept including a skirting board and a peripheral edge. The skirting board is provided at the joint portion between the wall and the floor, which is the lower end of the wall surface described above. The peripheral edge is provided at the joint portion between the wall and the ceiling, which is the upper end of the wall surface described above. The skirting board and the peripheral edge are provided in each of the above-mentioned connecting portions in a state where the longitudinal direction is the horizontal direction. In the embodiment, the corner member 10 is a corner member for entering a corner. That is, the corner member 10 is installed in the inside corner 82 of the first wall surface 80 and the second wall surface 81 in the building provided with the decorative member (see FIG. 1). The first wall surface 80 and the second wall surface 81 are in contact with each other at a predetermined angle to form an inside corner 82.

In the embodiment, the state in which the corner member 10 is installed in the inside corner 82 is referred to as an "installed state". The decorative member provided on the first wall surface 80 is referred to as a "first decorative member 90". The decorative member provided on the second wall surface 81 is referred to as a "second decorative member 95". The first decorative member 90 and the second decorative member 95 are skirting boards. The height direction of the first wall surface 80 and the second wall surface 81 is referred to as "height direction". The height direction coincides with the vertical direction. "Center side" and "end side" are used as names that define the orientation in the height direction. The center side in the height direction is the side of the center line M shown by the alternate long and short dash line in FIGS. 1 and 2 and FIG. 13, which will be described later. The center line M is a virtual straight line passing through the center positions of the first wall surface 80 and the second wall surface 81 in the height direction. In other words, the central side in the height direction is the upper side in the vertical direction from the lower ends of the first wall surface 80 and the second wall surface 81, and the lower side in the vertical direction from the upper ends of the first wall surface 80 and the second wall surface 81. The lower ends of the first wall surface 80 and the second wall surface 81 are the ends on the floor surface 84 side, and the upper ends of the first wall surface 80 and the second wall surface 81 are the end portions on the ceiling surface (not shown) side. Is. The end side in the height direction is the lower side or the upper side in the vertical direction. When the first decorative member 90 and the second decorative member 95 are skirting boards as in the embodiment, the end side in the height direction is the lower side in the vertical direction.

The corner member 10 includes a support member 20 and a covering member 40 (see FIGS. 2 and 3). The support member 20 and the covering member 40 are made of, for example, synthetic resin. As the synthetic resin forming the support member 20 and the covering member 40, ABS (Acrylonitrile Butadiene Styrene) resin is exemplified. However, the synthetic resin forming the support member 20 and the covering member 40 may be a synthetic resin different from the ABS resin. The support member 20 is integrally molded by resin molding. The covering member 40 is integrally molded by resin molding. The support member 20 and the covering member 40 may be formed at the same time by one resin molding. In this case, the support member 20 and the covering member 40 are in a state of being connected at a predetermined portion. The support member 20 and the covering member 40 are taken out from the resin molding mold and then separated.

The support member 20 is housed in a corner space in the installed state (see FIG. 2). The covering member 40 is supported by the support member 20 in the installed state (see FIG. 3). The covering member 40 covers the first end portion 91 of the first decorative member 90, the second end portion 96 of the second decorative member 95, and the corner space in the installed state (see FIGS. 1 and 2). The support member 20 and the covering member 40 will be described later. The above-mentioned corner space corresponds to the corner portion formed by the first wall surface 80 and the second wall surface 81, and is provided on the first end portion 91 and the second wall surface 81 of the first decorative member 90 provided on the first wall surface 80. It is a space adjacent to the second end 96 of the second decorative member 95. In the embodiment, the above-mentioned corner portion is an inside corner 82. Further, in the embodiment, the above-mentioned corner space is referred to as "accommodation space S" (see FIG. 2). In this case, in the installed state, the support member 20 is accommodated in the accommodation space S, and the covering member 40 covers the first end portion 91, the second end portion 96, and the accommodation space S. The accommodation space S as a corner space is a first end surface 92 of the first end portion 91 of the first decorative member 90 provided on the first wall surface 80, and a second decorative member 95 provided on the second wall surface 81. It can be said that it is a space surrounded by the second end surface 97 of the two end portion 96 and the areas of the first wall surface 80 and the second wall surface 81 corresponding to the inside corner 82. The areas of the first wall surface 80 and the second wall surface 81 corresponding to the above-mentioned entrance corner 82 are as follows. That is, the region of the first wall surface 80 is the region of the distance A (see FIG. 2) from the second wall surface 81 to the first end surface 92 of the first wall surface 80. The region of the second wall surface 81 is a region of the second wall surface 81 having a distance B (see FIG. 2) from the first wall surface 80 to the second end surface 97. Further, the accommodation space S can be said to be a space between the first end surface 92 and the second wall surface 81 and between the second end surface 97 and the first wall surface 80. In FIG. 2, the support member 20 shown by the alternate long and short dash line indicates the support member before being accommodated in the accommodation space S. In FIG. 2, the region R1 indicated by the alternate long and short dash line is shown for convenience corresponding to the accommodation space S. The region R1 corresponds to the shape of the accommodation space S in a plan view. In FIG. 2, the arrows in the four thin lines indicating the correspondence between the region R1 and the accommodation space S indicate the viewing direction.

The first end portion 91 is an end portion on the side of the second wall surface 81 of the first decorative member 90. In FIGS. 2, 9 and 13, which will be described later in FIG. 2, the lattice pattern shown at the end portion of the first decorative member 90 on the side of the second wall surface 81 is shown for convenience corresponding to the first end portion 91. .. The first end surface 92 is the end surface of the first end portion 91. The second end portion 96 is an end portion on the side of the first wall surface 80 of the second decorative member 95. In FIGS. 2, 9 and 13, which will be described later in FIG. 2, the lattice pattern shown at the end portion of the second decorative member 95 on the side of the first wall surface 80 is shown for convenience corresponding to the second end portion 96. .. The second end face 97 is the end face of the second end portion 96.

<Support member>
The support member 20 will be described with reference to FIGS. 2 and 4 to 6. In this description, the direction used to specify the support member 20 follows the direction with respect to the corner member 10 in the installed state. The support member 20 includes a base portion 22, a first engaging portion 24, a first contact portion 28, a second contact portion 30, a first deformed portion 32, and a second deformed portion 34 (see FIG. 4). .. In the support member 20, the base portion 22, the first engaging portion 24, the first contact portion 28, the second contact portion 30, the first deformed portion 32, and the second deformed portion 34 are integrated.

The base 22 is formed in a rod shape. The base 22 is arranged along the inside corner 82 in the installed state (see FIG. 2). The first engaging portion 24 is provided on the base portion 22. In the corner member 10, the number of the first engaging portions 24 is two (see FIG. 4). The number of the first engaging portions 24 may be one or three or more. The number of the first engaging portions 24 is appropriately determined in consideration of various conditions. The first engaging portion 24 is a fitting hole into which the second engaging portion 50 of the covering member 40 described later is fitted. The fitting hole as the first engaging portion 24 is a through hole that penetrates the base portion 22 in the attachment / detachment direction (see FIG. 5). The attachment / detachment direction is a direction along the direction in which the covering member 40 is attached to the support member 20 accommodated in the accommodation space S (see FIG. 2).

In the first engaging portion 24, the dimension in the height direction is set to "dimension L1> dimension L2" (see FIG. 5). The dimension L1 is a dimension in the height direction on the mounting side in the attachment / detachment direction. The dimension L2 is a dimension in the height direction on the detaching side in the attachment / detachment direction. The mounting side in the attachment / detachment direction is the side of the inner corner 82 in the installed state. The detaching side in the attachment / detachment direction is the side opposite to the entrance corner 82 in the installed state. In the first engaging portion 24, the step portion 26 is provided at a predetermined position in the attachment / detachment direction in which the dimension in the height direction changes between the dimensions L1 and L2. In the corner member 10, the step portion 26 has a tapered shape.

The first contact portion 28 is provided on the side of the first end surface 92 from the base portion 22 in the installed state (see FIG. 6). The first contact portion 28 is in contact with the first end surface 92 in the installed state. The second contact portion 30 is provided on the side of the second end surface 97 from the base portion 22 in the installed state (see FIG. 6). The second contact portion 30 is in contact with the second end surface 97 in the installed state. In the corner member 10, the number of the first contact portion 28 and the second contact portion 30 is two each (see FIG. 4). The number of the first contact portion 28 and the second contact portion 30 may be one or three or more. The number of the first contact portion 28 and the second contact portion 30 is appropriately determined in consideration of various conditions.

When the support member 20 includes a plurality of first engaging portions 24, the plurality of first engaging portions 24 are provided side by side in the height direction. When the support member 20 includes a plurality of first contact portions 28, the plurality of first contact portions 28 are provided side by side in the height direction. When the support member 20 includes a plurality of second contact portions 30, the plurality of second contact portions 30 are provided side by side in the height direction. However, the number of the first contact portion 28 and the second contact portion 30 may be the same, and one set of the first contact portion 28 and the second contact portion 30 may be provided at the same position in the height direction with respect to the base portion 22 (. See Figure 4). Further, the plurality of first engaging portions 24 and the plurality of sets of the first contact portions 28 and the second contact portions 30 may be provided alternately in the height direction. That is, in the support member 20, the two first engaging portions 24 and the two sets of the first contact portion 28 and the second contact portion 30 are arranged from the center side to the end side in the height direction to the first contact portion 28 and the second contact portion 30. The second contact portion 30, the first engaging portion 24, the first contact portion 28, the second contact portion 30, and the first engaging portion 24 are provided alternately in this order.

The first deformation portion 32 is provided in the first contact portion 28 (see FIG. 4). The first deformation portion 32 deforms the first contact portion 28 into a form corresponding to the distance A (see FIG. 2) between the second wall surface 81 and the first end surface 92 (see FIG. 6 and FIG. 9 to be described later). The second deformed portion 34 is provided in the second contact portion 30 (see FIG. 4). The second deformed portion 34 deforms the second contact portion 30 into a form corresponding to the distance B (see FIG. 2) between the first wall surface 80 and the second end surface 97 (see FIG. 6 and FIG. 9 described later). When the support member 20 includes two sets of the first contact portion 28 and the second contact portion 30, the support member 20 includes two first deformed portions 32 and two second deformed portions 34. In the corner member 10, the first deformed portion 32 is formed on a surface opposite to the surface of the first contact portion 28 on the side of the first wall surface 80 in the installed state, and the second deformed portion 34 is formed in the installed state. The two contact portions 30 are formed on a surface opposite to the surface on the side of the second wall surface 81. The first deformed portion 32 and the second deformed portion 34 are formed as one V-shaped groove along the height direction. The number and shape of the grooves forming the first deformed portion 32 and the second deformed portion 34 are appropriately determined in consideration of various conditions. The arrangement of the groove as the first deformed portion 32 on the above-mentioned surface of the first contact portion 28 is appropriately determined in consideration of various conditions. The arrangement of the groove as the second deformed portion 34 on the above-mentioned surface of the second contact portion 30 is appropriately determined in consideration of various conditions.

<Coating member>
The covering member 40 will be described with reference to FIGS. 1 and 2 and FIGS. 7 and 8. In this description, the direction used to specify the covering member 40 follows the direction with respect to the corner member 10 in the installed state. The covering member 40 includes a first covering portion 42, a second covering portion 44, a third covering portion 46, and a second engaging portion 50 (see FIG. 7). In the covering member 40, the first covering portion 42, the second covering portion 44, the third covering portion 46, and the second engaging portion 50 are integrated.

The first covering portion 42 covers the first end portion 91 and the accommodation space S from the surface side of the first decorative member 90 in the installed state (see FIGS. 1 and 2). The front surface of the first decorative member 90 is a surface opposite to the back surface on the side of the first wall surface 80 of the first decorative member 90. The second covering portion 44 covers the second end portion 96 and the accommodation space S from the surface side of the second decorative member 95 in the installed state (see FIGS. 1 and 2). The front surface of the second decorative member 95 is a surface opposite to the back surface on the side of the second wall surface 81 of the second decorative member 95. The third covering portion 46 covers the first end portion 91, the accommodation space S, and the second end portion 96 from the central side in the height direction in the installed state (see FIGS. 1 and 2). In the accommodation space S, the region opened on the detaching side in the attachment / detachment direction is covered by the first covering portion 42 and the second covering portion 44, and the region opened on the center side in the height direction is covered by the third covering portion 46. It becomes a state. The above-mentioned region opened toward the center in the height direction corresponds to the region R1. The third covering portion 46 is a surface on the end side in the height direction and is in contact with the tip surface of the base portion 22 (see FIG. 8). The tip surface of the base portion 22 is an end surface on the center side in the height direction of the base portion 22. That is, the third covering portion 46 is supported by the base portion 22. The rigidity of the corner member 10 in the height direction can be improved.

In the third covering portion 46, the surface on the center side in the height direction of the edge portion 47 is an inclined surface inclined toward the end side in the height direction toward each side of the first wall surface 80 and the second wall surface 81. (See FIGS. 7 and 8). The edge portion 47 is an edge portion on each side of the first wall surface 80 and the second wall surface 81 along the first wall surface 80 and the second wall surface 81. In the embodiment, the surface on the center side in the height direction of the edge portion 47 is referred to as "first surface 48", and the surface on the end side in the height direction of the edge portion 47 is referred to as "second surface 49". At the edge portion 47, the first surface 48 and the second surface 49 are connected at each side end of the first wall surface 80 and the second wall surface 81 (see FIG. 8). However, the edge portion 47 may have a chamfered shape at an angle (ridge angle) at which the first surface 48 and the second surface 49 intersect. In this case, the state in which the first surface 48 and the second surface 49 are connected at each side end of the first wall surface 80 and the second wall surface 81 is the edge portion 47, and the angle at which the first surface 48 and the second surface 49 intersect is the edge portion 47. Including the case where the shape is chamfered. When the thickness of the third covering portion 46 is H and the dimension in the height direction of the corner of the chamfered shape where the first surface 48 and the second surface 49 intersect is L3 (see FIG. 8), the dimension L3 is 0.5H. It should be as follows. Further, the dimension L3 is preferably 0.25H or less. Further, the dimension L3 is preferably 0.125H or less. The dimension L3 may be appropriately set, for example, in consideration of the ease of cutting the wallpaper attached to the first wall surface 80 and the second wall surface 81, which will be described later.

In the embodiment, the first surface 48 is an inclined plane and the second surface 49 is a horizontal plane. However, the first surface 48 may be an inclined surface having a shape different from that of the inclined plane. For example, the first surface 48 may be an inclined curved surface. When the first surface 48 is an inclined curved surface, the above-mentioned inclined curved surface may be either a convex curved surface or a concave curved surface. That is, the first surface 48 includes inclined surfaces having various shapes inclined toward the end side in the height direction toward each side of the first wall surface 80 and the second wall surface 81.

The second engaging portion 50 is provided on the back surface (back surface) of the covering member 40 (see FIG. 7). The back surface of the covering member 40 is a surface on the mounting side in the attachment / detachment direction. Further, the second engaging portion 50 is formed at a protruding corner-shaped boundary portion where the first covering portion 42 and the second covering portion 44 are in contact with each other. In the covering member 40, the second engaging portion 50 is provided in the same number as the first engaging portion 24 corresponding to the position of the first engaging portion 24 on the support member 20. As described above, in the corner member 10, the support member 20 includes two first engaging portions 24 (see FIG. 4). Therefore, in the covering member 40, the two second engaging portions 50 are each provided in a state of corresponding to the two first engaging portions 24 at the above-mentioned protruding corner-shaped boundary portion.

The second engaging portion 50 engages with the first engaging portion 24 (see FIG. 8). The second engaging portion 50 is provided with two beam portions 52 on the mounting side in the attachment / detachment direction. In the second engaging portion 50, the two beam portions 52 are separated by a predetermined amount in the height direction. The two beam portions 52 are elastically deformed in the height direction. A claw portion 54 is formed at the tip portion of the beam portion 52 on the mounting side in the attachment / detachment direction. Of the two beam portions 52, in the beam portion 52 provided on the center side in the height direction, the claw portion 54 has a shape protruding toward the center side in the height direction. Of the two beam portions 52, in the beam portion 52 provided on the end side in the height direction, the claw portion 54 has a shape protruding toward the end side in the height direction. In a state where the second engaging portion 50 is fitted into the fitting hole as the first engaging portion 24, each claw portion 54 of the two beam portions 52 is hooked on the stepped portion 26.

In the corner member 10, when the support member 20 and the covering member 40 are separated, the covering member 40 is pulled to the detaching side in the attachment / detachment direction. In the second engaging portion 50, the two beam portions 52 are elastically deformed to the side in the height direction in which they approach each other. In the support member 20 and the covering member 40, the two sets of the first engaging portion 24 and the second engaging portion 50 are released from being caught by the step portion 26 and the claw portion 54, respectively. Along with this, the support member 20 and the covering member 40 are separated.

<Effect of embodiment>
According to the embodiment, the following effects can be obtained.

(1) The corner member 10 includes a support member 20 and a covering member 40 (see FIG. 3). The support member 20 is accommodated in the accommodation space S (see FIG. 2). The support member 20 is provided with a first engaging portion 24 (see FIGS. 4 and 5). The covering member 40 is provided with a second engaging portion 50 (see FIG. 7). In the corner member 10, the first engaging portion 24 and the second engaging portion 50 are engaged (see FIGS. 3 and 8).

At the construction site, the first decorative member 90 is cut according to the dimensions of the first wall surface 80, and the second decorative member 95 is cut according to the dimensions of the second wall surface 81. After that, the first decorative member 90 is fixed to the first wall surface 80, and the second decorative member 95 is fixed to the second wall surface 81. The first decorative member 90 and the second decorative member 95 are fixed so that the first decorative member 90 and the second decorative member 95 do not rise from the first wall surface 80 and the second wall surface 81, respectively, and do not fall off. It is done by the method. Therefore, for example, nails may be used to fix the first decorative member 90 and the second decorative member 95. When a nail is struck on the first end portion 91 of the first decorative member 90, the first decorative member 90 is firmly fixed to the first wall surface 80 at the first end portion 91. When a nail is struck on the second end portion 96 of the second decorative member 95, the second decorative member 95 is firmly fixed to the second wall surface 81 at the second end portion 96. As a result, in the known corner member different from the corner member 10, a predetermined portion of the known corner member is between the first wall surface 80 and the first end portion 91 and between the second wall surface 81 and the second end portion 96. It may be difficult to fit each of them.

According to the corner member 10, the covering member 40 can be supported by the support member 20 accommodated in the accommodation space S. The corner member 10 can be easily installed in the inner corner 82. As described above, the accommodation space S is formed by providing the first decorative member 90 and the second decorative member 95 on the first wall surface 80 and the second wall surface 81, respectively. After that, the support member 20 is accommodated in the accommodation space S, and the covering member 40 is attached to the support member 20 accommodated in the accommodation space S. That is, the second engaging portion 50 of the covering member 40 is engaged with the first engaging portion 24 of the support member 20 accommodated in the accommodation space S. Work at the construction site can be simplified. The covering member 40 can cover the first end portion 91, the second end portion 96, and the accommodation space S.

(2) The support member 20 is provided with a first contact portion 28 and a second contact portion 30 (see FIG. 4). The first contact portion 28 is provided on the side of the first end surface 92 from the base portion 22 and is in contact with the first end surface 92 (see FIGS. 2 and 6). The second contact portion 30 is provided on the side of the second end surface 97 from the base portion 22 and is in contact with the second end surface 97 (see FIGS. 2 and 6). Therefore, the support member 20 accommodated in the accommodation space S is entered into the corner by the reaction force from the first end surface 92 acting on the first contact portion 28 and the reaction force from the second end surface 97 acting on the second contact portion 30. It can be fixed to 82.

By engaging the first engaging portion 24 and the second engaging portion 50, the support member 20 can be pulled toward the detached side in the attachment / detachment direction. In other words, by engaging the first engaging portion 24 and the second engaging portion 50, the covering member 40 can be pulled toward the mounting side in the attachment / detachment direction. The tensile force with respect to the support member 20 and the covering member 40 is adjusted according to the dimension L4 (see FIG. 8) in the attachment / detachment direction of the second engaging portion 50. The dimension L4 of the second engaging portion 50 is the dimension from the detached end of the second engaging portion 50 in the detachable direction to the base of the claw portion 54. This tensile force also allows the first contact portion 28 to be pressed against the first end surface 92 and the second contact portion 30 to be pressed against the second end surface 97. By this tensile force, the first covering portion 42 can be pressed against the first end portion 91, and the second covering portion 44 can be pressed against the second end portion 96.

(3) The support member 20 is provided with a first deformed portion 32 and a second deformed portion 34 (see FIG. 4). The first deformation portion 32 is provided in the first contact portion 28. The first deformation portion 32 deforms the first contact portion 28 into a form corresponding to the distance A between the second wall surface 81 and the first end surface 92. The second deformation portion 34 is provided in the second contact portion 30. The second deforming portion 34 deforms the second contact portion 30 into a form corresponding to the distance B between the first wall surface 80 and the second end surface 97.

Therefore, the support member 20 can be provided with flexibility with respect to the size of the accommodation space S. As described above, at the construction site, the first decorative member 90 is cut and the second decorative member 95 is cut. Therefore, an error may occur in each dimension of the first decorative member 90 and the second decorative member 95 due to cutting. Therefore, at the construction site, the intervals A and B (see FIG. 2) are expected to change depending on the dimensions of the first decorative member 90 and the second decorative member 95. For example, it is assumed that the intervals A and B are narrower than the intervals A1 and B1 shown in FIG. 6 (see FIG. 9). In this case, the first contact portion 28 is bent at the first deformed portion 32, and the second contact portion 30 is bent at the second deformed portion 34 (see FIG. 9). That is, the first deformation portion 32 can deform the first contact portion 28 into a form (shape) corresponding to the interval A2. The second deforming portion 34 can deform the second contact portion 30 into a form (shape) corresponding to the interval B2. It is possible to appropriately cope with variations in the size of the accommodation space S. The demand for dimensional accuracy for the first decorative member 90 and the second decorative member 95 can be suppressed.

<Modification example>
The embodiment can also be as follows. Some of the configurations shown in the following modifications can be adopted in combination as appropriate. In the following, points different from the above will be described, and description of the same points will be omitted as appropriate.

(1) In the support member 20, the first deformed portion 32 is a groove along the height direction provided in the first contact portion 28, and the second deformed portion 34 is provided in the second contact portion 30. It is a groove along the height direction (see FIG. 4). The first deformed portion may have a shape that can deform the first contact portion into a form corresponding to the distance A (see FIG. 2) between the second wall surface 81 and the first end surface 92. The second deformed portion may have a shape that can deform the second contact portion into a form corresponding to the distance B (see FIG. 2) between the first wall surface 80 and the second end surface 97. For example, the first deformed portion and the second deformed portion may be a cylindrical deformed portion 38 as shown in FIG. FIG. 10 is a convenient diagram for explanation showing the state of each deformation of the first contact portion by the cylindrical first deformed portion and the second contact portion by the tubular second deformed portion. The contact portion 36 and the deformed portion 38 shown in FIG. 10 correspond to any combination of the first contact portion and the first deformed portion and the second contact portion and the second deformed portion.

For example, it is assumed that the intervals A and B are narrower than the intervals A1 and B1 (see FIG. 6) and the intervals A2 and B2 (see FIG. 9). When the intervals A and B are the intervals A1 and B1, the deformed portion 38 is in the state shown in the upper part of FIG. When the intervals A and B are the intervals A2 and B2, the deformed portion 38 has a shape further crushed in the next direction as shown in the lower part of FIG. 10 as compared with the state shown in the upper part of FIG. The deforming portion 38 deforms the contact portion 36 in this way. When the contact portion 36 is the first contact portion and the deformed portion 38 is the first deformed portion, the above-mentioned direction is a direction along the first wall surface 80. When the contact portion 36 is the second contact portion and the deformed portion 38 is the second deformed portion, the above-mentioned direction is the direction along the second wall surface 81. In the support member, as in the case of each combination of the first contact portion 28 and the first deformed portion 32 and the second contact portion 30 and the second deformed portion 34 (see FIGS. 6 and 9), the deformed portion 38 makes the contact portion 36 of the contact portion 36. The tip may be movable within a predetermined angle range with the deformed portion 38 as a base point.

In the support member 20, the first deformed portion 32 is provided in the first contact portion 28, and the second deformed portion 34 is provided in the second contact portion 30 (see FIG. 4). The first deformed portion and the second deformed portion may be provided at positions different from the above-mentioned positions. The first deformation portion may be provided, for example, between the base portion and the first contact portion. The base portion and the first contact portion are connected via the first deformation portion. The second deformation portion may be provided, for example, between the base portion and the second contact portion. The base portion and the second contact portion are connected via the second deformation portion. In the support member, as in the combination of the first contact portion 28 and the first deformed portion 32 (see FIGS. 6 and 9), the tip of the first contact portion is determined by the first deformed portion with the first deformed portion as the base point. It becomes possible to move within the angle range of. The first deformed portion deforms the first contact portion into a form corresponding to the distance A between the second wall surface 81 and the first end surface 92 by making the tip of the first contact portion movable within a predetermined angle range. .. Further, in the support member, as in the combination of the second contact portion 30 and the second deformed portion 34 (see FIGS. 6 and 9), the tip of the second contact portion is based on the second deformed portion due to the second deformed portion. It becomes possible to move within a predetermined angle range. The second deforming portion deforms the second contact portion into a form corresponding to the distance B between the first wall surface 80 and the second end surface 97 by making the tip of the second contact portion movable within a predetermined angle range. ..

(2) In the covering member 40, the first surface 48 of the edge portion 47 of the third covering portion 46 is an inclined surface inclined toward the end side in the height direction toward each side of the first wall surface 80 and the second wall surface 81. (See FIGS. 7 and 8). In the third covering portion, the first surface of the edge portion may have a shape different from that of the inclined surface. For example, the first surface of the edge portion may have the shape shown in the upper part of FIG. In the upper part of FIG. 11, in order to clarify the correspondence with the embodiment based on FIGS. 1 to 9, the reference numerals for each part are the same as above. In the covering member 40 of the corner member 10 shown in the upper part of FIG. 11, the first surface 48 of the edge portion 47 of the third covering portion 46 is a horizontal plane perpendicular to the first wall surface 80 and the second wall surface 81. In this case, the first surface 48 is parallel to the second surface 49.

When the corner member 10 shown in the upper part of FIG. 11 is installed in the inside corner 82 as a corner portion together with the first decorative member 90 and the second decorative member 95, a third coating is formed between the next side surface and the third covering portion 46. A step T corresponding to the thickness H of the portion 46 is generated at the next boundary position. The above-mentioned side surfaces are the side surfaces on the central side in the height direction of the first decorative member 90 and the second decorative member 95. The above-mentioned boundary position is a position among the above-mentioned side surfaces that is not covered by the third covering portion 46. For example, in a building, wallpaper may be attached to the first wall surface 80 and the second wall surface 81. According to the corner member 10 shown in FIGS. 1 to 9, the step T as in the case where the corner member 10 shown in the upper part of FIG. 11 is installed does not occur (see the lower part of FIG. 11). Therefore, it is possible to smoothly construct the wallpaper at the construction site. For example, the wallpaper attached to the first wall surface 80 can be cut linearly along the first decorative member 90 and the corner member 10. The wallpaper attached to the second wall surface 81 can be cut linearly along the second decorative member 95 and the corner member 10. In the corner member 10 shown in the upper part of FIG. 11, when cutting the wallpaper, it is assumed that additional work such as removing the corner member 10 from the inside corner 82 is required. Further, the first decorative member 90 and the second decorative member 95 are not provided in each of the following areas. Each of the above-mentioned regions is a region of the first wall surface 80 corresponding to the accommodation space S (see the region of “spacing A” in FIG. 2) and the region of the second wall surface 81 (see the region of “spacing B” in FIG. 2). be. Each of the above-mentioned regions, together with the first end surface 92 and the second end surface 97, forms an accommodation space S. Therefore, in the corner member 10 shown in the upper part of FIG. 11, when the wallpaper is linearly cut along any one of the first decorative member 90 and the second decorative member 95 in each of the above-mentioned regions, the following tools are separately provided. It is expected that it will have to be used. The above-mentioned tools are tools for assisting the linear cutting of the wallpaper in each of the above-mentioned areas. In the corner member 10 shown in FIGS. 1 to 9, such additional work does not have to be performed, and the above-mentioned tools are unnecessary. The corner member 10 shown in the upper part of FIG. 11 may be adopted, for example, when the wallpaper cannot be attached to the first wall surface 80 and the second wall surface 81.

Based on the above points, the following corner members can be specified from the above-described embodiments based on FIGS. 1 to 9. This point will be described. In this description, the newly specified corner member is referred to as a "second corner member 10" in order to distinguish it from the corner member 10 shown in FIGS. 1 to 9. The reference numerals for each part of the second corner member 10 which is the same as or corresponding to each part of the corner member 10 shown in FIGS. 1 to 9 shall be the same as described above.

The second corner member 10 is installed together with the decorative member in, for example, the inside corner 82 as a corner portion of the first wall surface 80 and the second wall surface 81 in the building provided with the decorative member which is either a skirting board or a peripheral edge. It is a corner member to be made. The second corner member 10 includes a covering member 40. The covering member 40 is on the side of the second wall surface 81 of the first decorative member 90 as a decorative member provided on the first wall surface 80 in an installed state in which the second corner member 10 is installed in the inner corner 82. One end portion 91, a second end portion 96 on the side of the first wall surface 80 of the second decorative member 95 as a decorative member provided on the second wall surface 81, and a first end portion corresponding to an inner corner 82. It covers the corner space adjacent to 91 and the second end 96. The above-mentioned corner space is the accommodation space S (see FIG. 2). As described above, the accommodation space S includes the first end surface 92 of the first end portion 91 of the first decorative member 90 provided on the first wall surface 80 and the second decorative member 95 provided on the second wall surface 81. It can be said that it is a space surrounded by the second end surface 97 of the two end portion 96 and the areas of the first wall surface 80 and the second wall surface 81 corresponding to the inside corner 82.

The covering member 40 includes a first covering portion 42, a second covering portion 44, and a third covering portion 46. The first covering portion 42 covers the first end portion 91 and the corner space (accommodation space S) from the side of the front surface opposite to the back surface, which is the side of the first wall surface 80 of the first decorative member 90. The second covering portion 44 covers the second end portion 96 and the corner space (accommodation space S) from the side of the front surface opposite to the back surface, which is the side of the second wall surface 81 of the second decorative member 95. The third covering portion 46 covers the first end portion 91, the corner space (accommodation space S), and the second end portion 96 from the central side of the first wall surface 80 and the second wall surface 81 in the height direction. In the covering member 40, the first covering portion 42, the second covering portion 44, and the third covering portion 46 are integrated. In the third covering portion 46, the surface on the center side in the height direction of the edge portion 47 on each side of the first wall surface 80 and the second wall surface 81 along the first wall surface 80 and the second wall surface 81 (first surface 48). Is an inclined surface inclined toward the end side opposite to the central side in the height direction toward each side of the first wall surface 80 and the second wall surface 81.

The second corner member 10 may be installed in the inside corner 82 by the same method as the known corner member. In this case, the support member 20 may be omitted. When the support member 20 is omitted in the second corner member 10, the covering member 40 may be substantially the second corner member 10. The second corner member 10 may include a known configuration for installation in the inside corner 82. The second corner member 10 can also be further applied to a corner member for a protruding corner used when the corner portion of the first wall surface 80 and the second wall surface 81 is a protruding corner 83 (see FIG. 12). In FIG. 12, in order to clarify the correspondence with the embodiment based on FIGS. 1 to 9 and the lower part of FIG. 11, the reference numerals for each part are the same as described above. In the corner member 10 for the protruding corner shown in FIG. 12, the covering member 40 is the second of the first decorative member 90 provided on the first wall surface 80 in the installed state in which the corner member 10 is installed in the protruding corner 83. A first end portion 91 (see FIG. 13) on the side of the wall surface 81 and a second end portion 96 (see FIG. 13) on the side of the first wall surface 80 of the second decorative member 95 provided on the second wall surface 81. And covers the corner space corresponding to the protruding corner 83 and adjacent to the first end portion 91 and the second end portion 96. In FIG. 13, the region R2 shown by the alternate long and short dash line is shown for convenience corresponding to the above-mentioned angular space. The region R2 corresponds to the above-mentioned shape of the angular space in a plan view. In FIG. 13, the arrows in the four thin lines indicating the correspondence between the region R2 and the angular space indicate the viewing direction. That is, various configurations in which the first surface 48 of the edge portion 47 is an inclined surface in the third covering portion 46 are installed in various corner portions such as the inside corner 82 or the outside corner 83 where the first wall surface 80 and the second wall surface 81 meet. It can be used as a corner member of.

(3) The support member 20 is provided with a first contact portion 28 and a second contact portion 30 (see FIG. 4). The support member 20 is accommodated in the accommodation space S (see FIG. 2). The first contact portion 28 is in contact with the first end surface 92, and the second contact portion 30 is in contact with the second end surface 97 (see FIGS. 6 and 9). Along with this, the support member 20 is fixed to the inside corner 82 in a state of being accommodated in the accommodation space S. In the support member, the first contact portion 28 and the second contact portion 30 may be omitted. In this case, the first deformed portion 32 and the second deformed portion 34 are also omitted. When the first contact portion 28 and the second contact portion 30 are omitted in the support member, the support member may be fixed by, for example, one or both of an adhesive and an adhesive tape. Either one or both of the adhesive and the adhesive tape may be used in combination for fixing the support member 20 including the first contact portion 28 and the second contact portion 30.

The first contact portion 28 has a shape protruding from the base portion 22 toward the first end surface 92, and the second contact portion 30 has a shape protruding from the base portion 22 toward the second end surface 97 (FIGS. 2 and 2 and). See Figure 4). The first contact portion may be provided on the side of the first end surface 92 and may be in contact with the first end surface 92. The second contact portion may be provided on the side of the second end surface 97 and may be in contact with the second end surface 97. For the support member, for example, the base may be a cylinder, the first end surface 92 may be in contact with the outer peripheral surface of the base of the cylinder, and the second end surface 97 may be in contact with the outer peripheral surface of the base of the cylinder. In this case, the first contact portion is provided on the side of the first end surface 92 of the outer peripheral surface of the base portion, and is formed by a region in contact with the first end surface 92. The second contact portion is provided on the side of the second end surface 97 of the outer peripheral surface of the base portion, and is formed by a region in contact with the second end surface 97.

(4) The support member 20 is integrally molded by resin molding. In the support member 20, a first contact portion 28 and a second contact portion 30 are provided on the base portion 22 (see FIG. 4). The support member may be formed, for example, as follows. That is, the first contact portion and the second contact portion are formed separately from the base portion. After that, the first contact portion and the second contact portion are attached to the base. Along with this, an integral support member is formed. In this case, the base portion, the first contact portion, and the second contact portion may be made of different materials. For example, the first contact portion and the second contact portion may be made of a highly elastic material having higher elasticity than the base portion. Examples of the above-mentioned highly elastic material include rubber and elastomer. In this case, in the support member, the first deformed portion and the second deformed portion may be omitted. The first contact portion and the second contact portion will be deformed by themselves.

(5) In the corner member 10, the first engaging portion 24 is a fitting hole, and the second engaging portion 50 is fitted into the fitting hole as the first engaging portion 24 (see FIG. 8). The first engaging portion and the second engaging portion provided on the support member and the covering member, respectively, may have the following configurations. That is, in the support member, the first engaging portion may be an engaging portion having the same shape as the second engaging portion 50 protruding from the base portion to the detaching side in the attachment / detachment direction. In the covering member, the second engaging portion may be an engaging portion having a fitting hole similar to that of the first engaging portion 24. However, the fitting hole as the second engaging portion has a shape having a bottom sealed by the first covering portion 42 and the second covering portion 44. In the covering member, the second engaging portion is provided in a portion where the second engaging portion 50 is formed, with the outer peripheral wall of the fitting hole protruding toward the mounting side in the attachment / detachment direction. The covering member is supported by the support member in a state where the claw portion of the first engaging portion of the supporting member is caught by the stepped portion of the fitting hole as the second engaging portion of the covering member.

(6) The case where the first decorative member 90 and the second decorative member 95 are skirting boards has been described as an example. The above-mentioned corner member 10 (see FIGS. 1 to 12) can be installed at any corner of the inner corner 82 and the outer corner 83 provided with the first decorative member and the second decorative member, which are peripheral edges. .. When the first decorative member and the second decorative member are peripheral edges, the end side in the height direction described above is the upper side in the vertical direction. Installation of the corner member 10 at the corner portion provided with the peripheral edge is performed in the same manner as described above. Other description of the case where the first decorative member and the second decorative member are peripheral edges will be omitted.

10 Corner member, 20 Support member, 22 Base, 24 First engagement part 26 Step part, 28 First contact part, 30 Second contact part, 32 First deformation part 34 Second deformation part, 36 Contact part, 38 Deformation Part, 40 Covering member 42 First covering part, 44 Second covering part, 46 Third covering part, 47 Edge part 48 First surface, 49 Second surface, 50 Second engaging part, 52 Beam part, 54 Claw part 80 1st wall surface, 81 2nd wall surface, 82 inside corner, 83 outside corner, 84 floor surface 90 1st decorative member, 91 1st end surface, 92 1st end surface, 95 2nd decorative member 96 2nd end part, 97 Second end face, A, A1, A2, B, B1, B2 spacing H thickness, L1, L2, L3, L4 dimensions, M centerline, R1, R2 area S accommodation space, T step

Claims (2)

A corner member installed together with the decorative member at the corner of the first wall surface and the second wall surface in the building provided with the decorative member which is either a skirting board or a peripheral edge.
In the installed state where the corner member is installed at the corner portion, the first end portion on the side of the second wall surface of the first decorative member as the decorative member provided on the first wall surface and the second one. The second end portion of the second decorative member as the decorative member provided on the wall surface, which is on the side of the first wall surface, corresponds to the corner portion and is adjacent to the first end portion and the second end portion. It has a corner space and a covering member that covers it.
The covering member is
From the side of the front surface opposite to the back surface of the first decorative member, which is the side of the first wall surface, a first coating portion made of a hard synthetic resin that covers the first end portion and the corner space.
From the side of the front surface opposite to the back surface of the second decorative member, which is the side of the second wall surface, the second covering portion made of the hard synthetic resin covering the second end portion and the corner space.
From the center side in the height direction of the first wall surface and the second wall surface, the third covering portion made of the hard synthetic resin that covers the first end portion, the corner space, and the second end portion. Including,
In the covering member, the first covering portion, the second covering portion, and the third covering portion are integrated.
In the third covering portion, the central surface in the height direction of the first wall surface, the first wall surface along the second wall surface, and the edge portions on each side of the second wall surface is the first wall surface. A corner member having an inclined surface inclined toward an end side opposite to the central side in the height direction toward each side of the second wall surface. In the installed state where the corner member installed together with the decorative member is installed at the corner of the first wall surface and the second wall surface in the building where the decorative member which is either a skirting board or a peripheral edge is provided. A first end portion of the first decorative member as the decorative member provided on the first wall surface on the side of the second wall surface, and a second decorative member as the decorative member provided on the second wall surface. The covering member comprises a covering member covering the second end portion on the side of the first wall surface and the corner space corresponding to the corner portion and adjacent to the first end portion and the second end portion. From the side of the front surface opposite to the back surface of the first decorative member, which is the side of the first wall surface, the first coating portion made of synthetic resin covering the first end portion and the corner space, and the first coating portion. (Ii) The synthetic resin second covering portion and the first wall surface covering the second end portion and the corner space from the side of the front surface opposite to the back surface side of the second wall surface of the decorative member. And the third covering portion made of synthetic resin, which covers the first end portion, the corner space, and the second end portion from the central side in the height direction of the second wall surface, and the first. The covering portion, the second covering portion, and the third covering portion are integrated, and in the third covering portion, the first wall surface and the first wall surface and the second wall surface along the second wall surface are used. The surface of the edge on each side on the central side in the height direction is an inclined surface inclined toward the end side opposite to the central side in the height direction toward each side of the first wall surface and the second wall surface. The corner member is installed at the corner of the first wall surface provided with the first decorative member and the second wall surface provided with the second decorative member, and the corner is provided with the covering member. The first step to cover the space,
The step of linearly cutting the wallpaper attached to the first wall surface along the first decorative member and the corner member, and the wallpaper attached to the second wall surface to the second decorative member and the corner member. A method of constructing wallpaper, including a process of cutting linearly along and a second process including.

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