JP7120769B2 - wall material - Google Patents

Description

TECHNICAL FIELD The present disclosure relates to a wall material, and more particularly to a wall material in which horizontal joints are formed on the surface of a base material.

Patent Literature 1 discloses a decorative building board in which grooves are formed on the surface of a base material. This decorative building board is imparted with a three-dimensional effect by applying inkjet coating to the surface of the base material so that the resolution of the concave grooves is lower than that of the other portions.

Japanese Patent Application Laid-Open No. 2007-231586

By the way, there is a limit to imparting a three-dimensional effect to the surface of the substrate only by changing the resolution of the ink-jet coating as described above.

The present disclosure has been made in view of the above reasons, and an object of the present disclosure is to provide a wall material that emphasizes a three-dimensional effect while suppressing an increase in the thickness of the base material.

A wall material according to an aspect of the present disclosure is a wall material in which horizontal joints are formed on the surface of a base material, and the horizontal joints are located on an upper surface and below the upper surface, and the back surface of the base material and a lower surface with a gentler slope than the upper surface, extending in the longitudinal direction of the horizontal joint between the upper surface and the lower surface of the horizontal joint A ridge is formed.

A wall material according to an aspect of the present disclosure can emphasize a three-dimensional effect while suppressing an increase in the thickness of the base material.

FIG. 1 is a perspective view of a wall material according to an embodiment. FIG. 2A is a cross-sectional view orthogonal to the longitudinal direction of the same wall material. FIG. 2B is an enlarged view of part A of FIG. 2A. FIG. 3 is a horizontal sectional view of the same wall material. 4A is a cross-sectional view showing a horizontal joint of the wall material of Reference Example 1. FIG. 4B is a cross-sectional view showing a horizontal joint of the wall material of Reference Example 2. FIG. 4C is a cross-sectional view showing a horizontal joint of the wall material of Modification 1. FIG. 4D is a cross-sectional view showing a horizontal joint of the wall material of Modification 2. FIG.

(1) Overview Hereinafter, the wall material 1 of the present embodiment will be described with reference to FIGS. 1 to 3. FIG. The wall material 1 of this embodiment is a wall material in which a horizontal joint 3 extending in a direction crossing the vertical direction is formed on a surface 20 of a base material 2 . In the present disclosure, the surface 20 of the base material 2 means the surface of the base material 2 opposite to the base wall when the wall material 1 is installed along the base wall.

As shown in FIG. 2B , the horizontal joint 3 has an upper surface 30 and a lower surface 31 . The lower surface 31 is positioned lower than the upper surface 30 , and is inclined such that the portion closer to the back surface 21 of the base material 2 is positioned higher, and has a gentler slope than the upper surface 30 . A ridge 33 extending in the longitudinal direction of the horizontal joint 3 is formed between the upper surface 30 and the lower surface 31 of the horizontal joint 3 .

In the wall material 1 of the present embodiment, the lower surface 31 and the ridges 33 are brightly illuminated when light such as sunlight or illumination light hits from the front obliquely upward. On the other hand, a shadow is formed on a portion 34 of the horizontal joint 3 above the ridge 33 . In this case, the viewer of the wall material 1 is given the impression that the shaded portion 34 is located further inside the horizontal joint 3 than the actual position with respect to the ridge 33 . Therefore, the wall material 1 has an appearance as if deep horizontal joints 3 were formed.

(2) Structure Hereinafter, the structure of the wall material 1 of this embodiment will be described in detail. The wall material 1 of the present embodiment shown in FIG. 1 is an exterior wall material for horizontal installation, and is constructed so that the surface 20 of the base material 2 faces the outdoor side.

The wall material 1 is constructed such that the back surface 21 (the surface opposite to the front surface 20) of the base material 2 is along the wall foundation. In addition, in the present disclosure, each configuration of the wall material 1 will be described using the directions in the constructed state. Specifically, the direction from the base material 2 to the opposite side of the wall base is defined as the front, and the direction from the base material 2 to the wall base is defined as the rear.

The main body of the wall material 1 is composed of the base material 2 . The base material 2 is formed by, for example, extrusion molding, and is entirely made of the same material. The base material 2 of the present embodiment is, for example, a ceramic siding material and is made of hardened cement.

The base material 2 is formed in a rectangular plate shape elongated in the horizontal direction. The shape of the cross section perpendicular to the horizontal direction of the base material 2 is substantially uniform over the longitudinal direction of the base material 2 .

As shown in FIG. 2A , an upper ridge portion 22 is formed at the upper end portion of the base material 2 , and a lower ridge portion 23 is formed at the lower end portion of the base material 2 . In the state where the wall material 1 is installed, the upper wall part 22 faces the lower wall part 23 of the other wall material 1 adjacent above, and the lower wall part 23 is above the other wall material 1 adjacent below. It faces the real part 22 .

As shown in FIGS. 1 and 2A, a plurality of horizontal joints 3 are formed on the surface 20 of the base material 2 so as to be vertically spaced apart from each other.

Each horizontal joint 3 is a groove extending linearly in the longitudinal direction of the base material 2 . Each horizontal joint 3 is formed over the entire length of the base material 2 in the longitudinal direction.

A plurality of protrusions 4 are formed on the surface 20 of the base material 2 so as to be aligned in the upward direction. Each protrusion 4 is formed by a portion between adjacent horizontal joints 3 on the surface 20 of the base material 2 .

Each protrusion 4 is formed in a rectangular shape extending horizontally when viewed from the front. The front surface of each protrusion 4 is a substantially vertical surface.

A three-dimensional pattern representing the surface of the material of the piece material is formed on the front surface of each protrusion 4 so that the protrusion 4 looks like a piece material corresponding to the motif of the wall material 1, for example. Motifs of the wall material 1 include, for example, a clay wall pattern, a concrete wall pattern, a masonry pattern, a brick pattern, or a plate pattern. For example, when the motif of the wall material 1 is a clay wall pattern, a three-dimensional pattern representing the surface of the clay is formed on the front surface of each protrusion 4 .

Each horizontal joint 3 of this embodiment is a box joint having a bottom surface 32, and has an upper surface 30, a lower surface 31, a bottom surface 32 and a plurality of ridges 33, as shown in FIG. 2B.

The upper surface 30 forms the lower surface of the protrusion 4 thereon, and the lower surface 31 forms the upper surface of the protrusion 4 thereunder. A plurality of ridges 33 are formed in a portion between the upper surface 30 and the lower surface 31 of each horizontal joint 3 . The bottom surface 32 connects the top surface 30 and the surfaces of the plurality of ridges 33 .

The upper surface 30 extends obliquely downward and rearward from the lower edge of the front surface of the upper protrusion 4 . That is, the upper surface 30 is inclined so that the portion closer to the back surface 21 of the base material 2 is positioned downward. For this reason, the upper surface 30 is less likely to be exposed to light such as sunlight or illumination light from obliquely above the front, and is likely to be shaded. The upper surface 30 of this embodiment has an inclination angle θ1 of 45° or more with respect to the vertical plane.

The lower surface 31 extends rearward and obliquely upward from the upper edge of the front surface of the lower protrusion 4 . That is, the lower surface 31 is inclined so that the portion closer to the back surface 21 of the base material 2 is positioned higher. Therefore, when light such as sunlight or illumination light strikes the wall material 1 from the front and obliquely above, the lower surface 31 is likely to be brightly illuminated.

The lower surface 31 has a gentle slope compared to the upper surface 30 . That is, the inclination angle θ2 of the lower surface 31 with respect to the vertical plane is smaller than the inclination angle θ1 of the upper surface 30 with respect to the vertical plane. In this embodiment, the inclination angle θ2 is less than 45° so that the lower surface 31 is illuminated more brightly than the front surface of the protrusion 4 when the wall material 1 is exposed to light such as sunlight or illumination light. .

The bottom surface 32 extends downward from the trailing edge (lower end) of the top surface 30 . The bottom surface 32 of this embodiment is a substantially vertical surface parallel to the front surface of the protrusion 4 . When light such as sunlight or illumination light strikes the wall material 1 from the front obliquely upward, the bottom surface 32 is likely to be shadowed by the projecting portion 4 positioned above.

Between the bottom surface 32 and the bottom surface 31, a plurality of ridges 33 are formed vertically. A trailing edge (upper end) of the lower surface 31 and a lower edge of the bottom surface 32 are connected to the surfaces of the plurality of ridges 33 . That is, in this embodiment, the bottom surface 32 and the lower surface 31 are connected via the surfaces of the plurality of ridges 33 .

Each ridge 33 extends linearly in the longitudinal direction of the horizontal joint 3 and covers the entire longitudinal direction of the horizontal joint 3 .

In each horizontal joint 3 , a plurality of ridges 33 protrude forward from the bottom surface 32 . Therefore, the plurality of ridges 33 are likely to be brightly illuminated by the light compared to the bottom surface 32 . In addition, the plurality of ridges 33 are located behind the front surface of the protrusion 4 . In addition, the protruding ridges 33 on the lower side are located forward, and all the ridges 33 are located rearward of the front surface of the protrusion 4 as described above.

The entire surface 20 of the substrate 2 of the present embodiment is printed. Specifically, the surface 20 of the base material 2 has a plurality of printing areas with different surface roughnesses, and each printing area is printed differently.

The surface 20 of this embodiment has a plurality of first print areas PA1, a plurality of second print areas PA2, and a plurality of third print areas PA3 as the plurality of print areas.

Each first printing area PA1 is composed of the front surface of the protrusion 4 and the lower surface 31 of the horizontal joint 3 continuous therewith. Each first printing area PA1 is printed to express one material selected from various materials such as soil, concrete, stone, brick, wood, and glass.

The material printed in the first printing area PA1 is the same material as the material represented by the shape of the projections 4 . For example, when the protrusion 4 has a shape that represents a part of a soil wall, the first printing area PA1 is printed with a color and pattern representing the surface of the soil.

Each first print area PA1 has a surface roughness corresponding to the material printed on the first print area PA1. For surface roughness in the present disclosure, for example, arithmetic mean roughness Ra defined by JISB 0601:2013 is used.

Each second printing area PA2 is composed of the surfaces of a plurality of ridges 33 . Each second printing area PA2 is printed with one material selected from the various materials described above, for example.

However, the material printed in the second print area PA2 is different from the material printed in the first print area PA1. For example, when the soil material described above is printed on the first print area PA1, the second print area PA2 is printed with a color and pattern representing the surface of the glass.

Each second printing area PA2 has a surface roughness corresponding to the material printed on the second printing area PA2. In this embodiment, the second print area PA2 is formed to have a smaller surface roughness than the first print area PA1. Therefore, the difference in texture between the first print area PA1 and the second print area PA2 is clearly expressed.

Each third printing area PA3 is composed of the upper surface 30 and the bottom surface 32 of the horizontal joint 3 . Each third printing area PA3 is printed with, for example, the same material as the first printing area PA1 and darker than the first printing area PA1. That is, the upper surface 30 and the bottom surface 32 are darker than the front surface and the lower surface 31 of the projection 4 . Therefore, the third print area PA3 looks darker due to the influence of the shadow formed in the third print area PA3.

The surface roughness of the third print area PA3 is smaller than the surface roughness of the first print area PA1. Therefore, the third printing area PA3 tends to appear to be located closer to the rear surface 21 of the base material 2 than it actually is.

Also, the surface roughness of the third printing area PA3 is greater than the surface roughness of the second printing area PA2. Therefore, the difference in texture between the third print area PA3 and the second print area PA2 is clearly expressed.

The wall material 1 of this embodiment includes a coating film 5 formed over the entire surface 20 of the base material 2, as shown in FIG. The coating film 5 has a printed layer 52 formed by printing as described above.

The coating film 5 of the present embodiment has, for example, an ink receiving layer 51, a printed layer 52 and a clear layer 53 in this order from the substrate 2 side.

The ink-receiving layer (ink-receiving layer) 51 formed on the surface 20 of the substrate 2 facilitates fixing the printed layer 52 to the surface 20 of the substrate 2 . The ink receiving layer 51 is formed by a technique such as spray coating, curtain coating, roll coating, or the like. As the paint that forms the ink receiving layer 51, for example, a water-based paint is used. This paint is, for example, an acrylic resin paint or an acrylic silicone resin paint.

A printed layer (ink layer) 52 formed on the surface (front surface) of the ink receiving layer 51 is formed by inkjet printing (inkjet coating). That is, the print layer 52 is an aggregate of many ink dots (ink dots) adhered to the ink receiving layer 51 .

The inkjet printing is performed, for example, using an inkjet printer that ejects inks of a plurality of colors. As the ink forming the print layer 52, for example, water-based ink is used.

The print layer 52 in this embodiment has a different dot density for each print area, and the dot density in each print area is higher in a print area with a smaller surface roughness. Note that the difference in dot density is provided by, for example, varying one or both of the ink dot pitch and the ink dot diameter for each printing area.

The dot density in the second print area PA2 shown in FIG. 2B is higher than the dot density in the first print area PA1. Therefore, the second print area PA2 tends to appear smoother than the first print area PA1. Therefore, combined with the influence of the difference in surface roughness between the first print area PA1 and the second print area PA2, the difference in texture between the first print area PA1 and the second print area PA2 is expressed more clearly.

Also, the dot density of the third print area PA3 is higher than the dot density of the first print area PA1. Therefore, the third print area PA3 looks darker than the first print area PA1.

Also, the dot density of the third print area PA3 is smaller than the dot density of the second print area PA1. Therefore, the second print area PA2 tends to look smoother than the third print area PA3.

As shown in FIG. 3 , a clear layer 53 is formed on the surface (front surface) of the printed layer 52 . The clear layer 53 is a layer that transmits visible light, protects the printed layer 52, and imparts clearness to enhance the design.

The clear layer 53 is formed by, for example, spray coating. As the clear paint that forms the clear layer 53, for example, a water-based clear paint is used. The water-based clear coating is, for example, acrylic, acrylic silicon, or acrylic urethane.

The clear paint in the clear layer 53 is easily applied to the surface of the ink dots in the printed layer 52 and is difficult to be applied to the portions of the ink receiving layer 51 where the ink dots of the printed layer 52 are not applied. Therefore, the density of the clear paint in the clear layer 53 increases as the dot density of the print layer 52 printed in the corresponding print area increases. That is, in this case, the density of the clear paint in the second print area PA2 is higher than the density of the clear paint in the first print area PA1. Therefore, the second print area PA2 tends to look smoother than the first print area PA1.

(3) Reference Example and Modification Next, a reference example and a modification of the embodiment will be described. In addition, in the following description of each reference example and each modified example, the same reference numerals are given to elements that are common to the above-described embodiment, and the description thereof is omitted.

(3-1) Reference example 1
In the wall material 1 of Reference Example 1 shown in FIG. 4A, only one ridge 33 is formed in the horizontal joint 3. The bottom surface 32 is located on the same imaginary plane as the lower surface 31, and is inclined with respect to the vertical plane so that the portion closer to the back surface 21 of the base material 2 is located higher.

(3-2) Reference example 2
The wall material 1 of Reference Example 2 shown in FIG.

The upper edge of the bottom upper portion 35 is connected to the rear edge of the upper surface 30 , and the lower edge of the bottom upper portion 35 is connected to the upper edge of the bottom lower portion 36 . The bottom edge of the bottom bottom portion 36 is connected to the surface of the ridge 33 .

(3-3) Modification 1
The bottom surface 32 of the wall material 1 of Modified Example 1 shown in FIG. 4C is a surface located on the same imaginary plane as the bottom surface 31, and is arranged in a vertical plane so that the part closer to the back surface 21 of the base material 2 is positioned higher. tilted towards.

(3-4) Modification 2
In the wall material 1 of Modified Example 2 shown in FIG. 4D , a plurality of ridges 33 of the horizontal joint 3 are formed in the middle portion of the bottom surface 32 in the vertical direction.

The first printing area PA<b>1 of this modified example is composed of the front surface of the protrusion 4 , the lower surface 31 , and the portion of the bottom surface 32 below the plurality of ridges 33 . The first printing area PA1 is printed in the same manner as the first printing area PA1 of the above embodiment, and has a coating film similar to the coating film 5 formed on the first printing area PA1 of the above embodiment. It is formed.

In addition, the third printing area PA3 of this modified example is composed of a portion of the bottom surface 32 above the plurality of ridges 33 and the top surface 30 . The third printing area PA3 is printed in the same manner as the third printing area PA3 of the above embodiment, and has a coating film similar to the coating film 5 formed in the third printing area PA3 of the above embodiment. It is formed.

(4) Supplement The design of the wall member 1 of the above-described embodiment and modifications can be changed as appropriate.

For example, the inclination angle θ1 of the upper surface 30 of the horizontal joint 3 may be less than 45°. Moreover, the upper surface 30 is not limited to being inclined so that the portion closer to the back surface 21 is located downward, and may be, for example, a horizontal surface. Further, the inclination angle θ2 of the lower surface 31 of the horizontal joint 3 may be 45° or more.

Moreover, the horizontal joint 3 may not have the bottom surface 32 . In this case, the upper surface 30 directly connects to the surface of the ridge 33 . Further, the ridges 33 may be formed only partially in the longitudinal direction of the horizontal joint 3 .

Moreover, the longitudinal direction of the horizontal joint 3 may be a direction that intersects the vertical direction, and may be, for example, a direction that is inclined with respect to the horizontal direction. Also, only one horizontal joint 3 may be formed in the base material 2 . Moreover, the horizontal joint 3 may be formed only partially in the longitudinal direction of the base material 2 .

Moreover, the coating film 5 is not limited to being directly formed on the surface 20 of the base material 2, and may be formed via an underlying layer such as a sealer, primer, or enamel paint. Also, the coating film 5 may not have at least one of the ink receiving layer 51 and the clear layer 53 . Further, other layers such as an inorganic paint layer or a photocatalyst paint layer may be further formed on the surface of the coating film 5 as necessary.

Moreover, the paint of the ink receiving layer 51 is not limited, and may be formed of, for example, an ultraviolet curable resin paint. In addition, the ink forming the print layer 52 is not limited, and may be, for example, an oil-based ink or an ultraviolet curable ink. Moreover, the clear paint that forms the clear layer 53 is not limited, and may be, for example, a solvent clear paint or an ultraviolet curable clear paint.

Also, the surface roughness of the second print area PA2 may be the same as the surface roughness of the first print area PA1, or may be the same as the surface roughness of the third print area PA1.

Also, the surface roughness of the third printing area PA3 may be the same as the surface roughness of the first printing area PA1. Also, the surface roughness of the third print area PA3 may be greater than the surface roughness of the first print area PA1, or may be less than the surface roughness of the second print area PA2.

Also, the third printing area PA3 may be printed with the same material as the second printing area PA2 as long as the color is darker than the printing of the adjacent first printing area PA1 and second printing area PA2. Also, the third print area PA3 may be printed with a different material from both the first print area PA1 and the second print area PA2.

Also, the dot density of each print area does not have to be different for each print area. In addition, the number of materials printed on the surface 20 of the base material 2 is not limited. For example, the surface 20 may be printed with only one material, or printed with three or more materials. may Moreover, the wall material 1 may not be printed. That is, the wall material 1 does not have to have the coating film 5 .

Moreover, the base material 2 may be formed by methods other than extrusion molding, such as papermaking molding, cast molding, and press molding.

Further, the base material 2 is not limited to a ceramic base material, and may be a wood base material, a plastic base material, a metal base material, or the like. Moreover, the wall material 1 may be an external wall material for vertical installation, in which the longitudinal direction of the base material 2 is parallel to the vertical direction. In addition, the technique of the present disclosure can also be applied to wall materials that are used as inner wall materials.

Further, in the horizontal joints 3 of the above embodiment, modified example 1 , and modified example 2 , only one ridge 33 may be formed, or three or more ridges may be formed .

(5) Summary The wall material 1 of the embodiment and each modification described above is a wall material in which the horizontal joint 3 is formed on the surface 20 of the base material 2, and has the following configuration. The horizontal joint 3 has an upper surface 30 and a lower surface 31 . The lower surface 31 is located below the upper surface 30 and is inclined such that the portion closer to the back surface 21 of the base material 2 is located higher and has a gentler slope than the upper surface 30 . A ridge 33 extending in the longitudinal direction of the horizontal joint 3 is formed between the upper surface 30 and the lower surface 31 of the horizontal joint 3 . Hereinafter, the wall material 1 having this configuration will be referred to as the wall material 1 of the first embodiment.

In the wall material 1 of the first aspect, when light such as sunlight or illumination light strikes from the front obliquely upward, the lower surface 31 and the ridges 33 are brightly illuminated, whereas the ridges at the horizontal joints 3 are brightly illuminated. Shadows are likely to be formed in portions 34 above 33 (eg, top surface 30 and bottom surface 32 in the above embodiment). In this case, the part 34 where the shadow is formed is positioned deeper into the horizontal joint 3 than the actual position with reference to the ridge 33 protruding toward the surface side of the base material 2 to the viewer of the wall material 1 . gives the impression of being located in Therefore, the wall material 1 has an appearance with a three-dimensional effect emphasized as if a deep horizontal joint 3 is formed, and the design property can be improved while suppressing an increase in the thickness of the wall material 1.例文帳に追加

In addition, the wall materials 1 of the embodiment, modified examples 1 and 2 have the following configuration in the wall material 1 of the first aspect. A plurality of ridges 33 are formed vertically. Hereinafter, this wall material 1 will be referred to as a wall material 1 of the second embodiment.

In the wall material 1 of the second aspect, the plurality of ridges 33 are brightly illuminated. For this reason, for those who see the wall material 1, the plurality of ridges 33 are used as a reference, and the portion 34 above the ridges 33 in the horizontal joint 3 is positioned deeper in the horizontal joint 3 than the actual position. gives the impression of being located in

Moreover, the wall material 1 of the said embodiment and each modification has the structure shown below. The horizontal joint 3 has a bottom surface 32 that connects the top surface 30 and the ridge 33 . The bottom surface 32 is darker than the bottom surface 31 . Hereinafter, this wall material 1 will be referred to as a wall material 1 of the third embodiment.

The wall material 1 of the third aspect gives an impression to a person who sees the wall material 1 that the bottom surface 32 is located further inside the horizontal joint 3 than the actual position with respect to the ridge 33. . In addition, since the bottom surface 32 has a darker color than the lower surface 31, the bottom surface 32 is more likely to appear to be located on the far side of the horizontal joint 3.例文帳に追加

In addition, the structure of the wall material 1 of the second and third aspects is not an essential structure of the wall material 1, and can be omitted as appropriate.

REFERENCE SIGNS LIST 1 wall material 2 base material 20 front surface 21 back surface 3 horizontal joint 30 upper surface 31 lower surface 32 bottom surface 33 ridges

Claims (3)

A wall material in which horizontal joints are formed on the surface of a base material,
The horizontal joint is
the top surface and
a lower surface located below the upper surface, inclined so that a portion closer to the back surface of the base material is located higher, and having a gentler slope than the upper surface;
A ridge extending in the longitudinal direction of the horizontal joint is formed between the upper surface and the lower surface of the horizontal joint,
The horizontal joint is
having a bottom surface connecting the top surface and the ridge,
The upper end of the lower surface and the lower edge of the bottom surface are connected to the surface of the ridge,
The bottom surface and the bottom surface are connected via the surface of the ridge ,
A plurality of the ridges are arranged vertically and formed,
A wall material in which a portion where the plurality of ridges are connected to each other is located in front of an imaginary plane connecting an upper end of the lower surface and a lower edge of the bottom surface . The wall material according to claim 1 ,
The plurality of ridges protrude forward from the bottom surface,
The wall material located forward as far as the ridge on the lower side. In the wall material according to claim 1 or claim 2,
A plurality of projections arranged in an upward direction are formed on the surface of the base material,
Each of the protrusions is formed of a portion between the adjacent horizontal joints on the surface of the base material,
The wall material, wherein the ridge is positioned rearward of the front surface of the protrusion.

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