This application claims priority to Japanese Patent Application Number 060046/2019, filed on Mar. 27, 2019, the entire contents of which are incorporated herein by reference.
The present invention relates to a decorative molded article that is applied to interior components of automotive vehicles or exterior components of home appliances, and causes designs different from each other to appear on a front surface side thereof, when a light source disposed on a back surface side thereof is off and when the same is on, respectively.
Conventionally, as this kind of decorative molded article, there has been known, for example, one disclosed in Japanese Patent No. 4469463 already filed by and granted to the present applicant. This decorative molded article is comprised of a wood veneer made by slicing wood, a base joined to a back surface of the wood veneer, a design layer attached to a back surface side of the base, and a top coat layer provided on a front surface of the wood veneer by coating. The wood veneer is formed to be very thin and has a predetermined transparency. Further, the base is made of a transparent synthetic resin and is integrally formed on the back surface of the wood veneer by injection molding. The design layer is formed as a patterned or colored one and is configured to be removable from the base. The top coat layer is made of a transparent synthetic resin, for protection of the front surface of the decorative molded article and is polish-finished.
By arranging the base formed of the transparent synthetic resin on the back surface side of the wood veneer having the transparency, the decorative molded article constructed as described above can obtain a unique beautiful finish which is emphasized in the depth feeling and the glossy feeling (appearance of glossiness varying with the angle of viewing) of the wood veneer. Further, by providing the design layer on the back surface side of the base, the design layer appears in a stat seen through the transparent base and looks combined with the wood veneer, whereby a variety of changes are given to a woodgrain pattern and a color tone of the wood veneer.
Further, the decorative molded article described above is capable of being illuminated from the back surface side thereof by the light source, and when the illumination is performed, the wood veneer and the design layer are illuminated, whereby a design based on the wood veneer and the design layer appears as if rising to the surface even in a dark place.
In a case where the conventional decorative molded article described above is applied to an interior component of an automotive vehicle, the design based on the wood veneer and the design layer appears in a vehicle compartment, which enhances the quality appearance of the vehicle compartment. Further, when the decorative molded article is illuminated from the back surface side thereof, the design based on the wood veneer and the design layer appears as if rising to the surface even when the vehicle compartment is dark.
However, in the decorative molded article described above, a basic design based on the wood veneer and the design layer does not change, and hence the design appearing on the front surface of the decorative molded article is not very different between when the light source is on and when the same is off. Further, it is possible, by replacing one design layer attached to the back surface side of the base with another, to make the design appearing on the front surface of the decorative molded article largely different from before the replacement. However, it is required to replace the design layer after once removing the decorative molded article already installed as the interior component of the automotive vehicle. The replacement work is troublesome.
Further, in recent years, for interior components of automotive vehicles and exterior components of home appliances, color that adds a quality appearance, e.g. glossy black, which is called jet black or piano black, is used. The use of such a black color makes it possible to enhance the quality appearance or profound feeling of the vehicle compartment. However, in such a decorative molded article provided with the only color of black, the design appearing on the front surface thereof is sometimes felt dull.
It is an object of the present invention to provide a decorative molded article capable of largely changing a design appearing on a front surface side thereof, depending on whether a light source is on or off.
To attain the above object, the present invention provides a decorative molded article that is configured to be capable of being illuminated by a light source disposed on a back surface side thereof, and cause designs different from each other to appear on a front surface side thereof, when the light source is off and when the light source is on, respectively, comprising a base that is made of a predetermined synthetic resin permeable to light from the light source, and is disposed in the vicinity of the light source, a wood veneer that is formed by slicing wood such that the wood veneer has a grain and is permeable to light from the light source, the wood veneer being disposed on a front surface side of the base, a colored coating layer that is formed on a front surface side of the wood veneer by coating with a colored paint having a predetermined color, for making the grain of the wood veneer difficult to visually recognize when the light source is off and making the grain of the wood veneer visually recognizable when the light source is on, and a clear coating layer that is formed on a front surface side of the colored coating layer by coating with a transparent clear paint.
According to this construction, the wood veneer that has a grain and is permeable to light from the light source is disposed on the front surface side of the base made of a predetermined synthetic resin, and the colored coating layer is formed on the front surface side of the wood veneer by coating with a colored paint having a predetermined color. Further, the clear coating layer is formed on the front surface side of the colored coating layer, by coating with a transparent clear paint. The colored coating layer provided on the front surface side of the wood veneer makes the grain of the wood veneer difficult to visually recognize (including “impossible to visually recognize” in the present specification) when the light source disposed on the back surface side of the decorative molded article is off, and on the other hand, makes the grain of the wood veneer visually recognizable when the light source is on. In other words, when the light source is off, the grain of the wood veneer is difficult to visually recognize and a design based on the color of the colored coating layer and the clear coating layer appears on the front surface side of the decorative molded article. On the other hand, when the light source is on, a design, which looks as if the grain of the wood veneer rises to the surface, appears on the front surface side of the decorative molded article. Thus, it is possible to obtain the decorative molded article that is capable of largely changing the design appearing on the front surface side thereof depending on whether the light source is on or off.
Preferably, the wood veneer has vessels opening outward, on the front surface side thereof, and the colored coating layer and the clear coating layer are each formed as a thin film having such a predetermined thickness that the vessels are not buried.
According to the construction of this preferred embodiment, the wood veneer has vessels opening outward, on the front surface side thereof, and the colored coating layer and the clear coating layer, provided on the front surface side of the wood veneer, are each formed as a thin film having such a predetermined thickness that the vessels are not buried. This provides the front surface of the decorative molded article with an open-pore finish in which recesses of the vessels remain, so that it is possible to obtain the decorative molded article the front surface of which has a concave convex feeling. Further, since the colored coating layer is formed as such a thin film described above, it is possible to easily realize the decorative molded article which makes the grain of the wood veneer visually recognizable when the light source is on.
Preferably, the wood veneer has vessels opening outward, on the front surface side thereof, the colored coating layer is formed as a thin film having such a predetermined thickness that the vessels are not buried, and the clear coating layer is formed as a thick film having such a predetermined thickness that the vessels are buried.
According to the construction of this preferred embodiment, the colored coating layer provided on the front surface side of the wood veneer is formed as a thin film having such a predetermined thickness that the vessels are not buried, and hence, similar to the preferred embodiment corresponding to claim 2, it is possible to easily realize the decorative molded article which makes the grain of the wood veneer visually recognizable when the light source is on. Further, since the clear coating layer is formed as a thick film having such a predetermined thickness that the vessels are buried, it is possible, by smoothing the surface of the clear coating layer, to obtain the decorative molded article having a glossy surface.
Preferably, the clear coating layer is formed as a colored clear coating layer in which the colored paint is mixed with the clear paint.
According to the construction of this preferred embodiment, as the clear coating layer provided on the front surface side of the colored coating layer, the colored clear coating layer is formed in which the colored paint is mixed with the clear paint. Therefore, by changing the mixing ratio of the colored paint to the clear paint and the thickness of the colored clear coating layer, it is possible to change the light and shade of the color of the design appearing on the front surface side of the decorative molded article.
Preferably, the clear coating layer includes a first clear coating layer laminated on the front surface of the colored coating layer, and a second clear coating layer laminated on another colored coating layer formed by coating a front surface of the first clear coating layer with a colored paint having a predetermined color.
According to the construction of this preferred embodiment, on the front surface of the first clear coating layer laminated on the front surface of the colored coating layer, the other colored coating layer is provided, and on the front surface of the other colored coating layer, the second clear coating layer is laminated. In this case, for example, by changing the thickness of the other colored coating layer, it is possible to easily change the light and shade of the color of the design appearing on the front surface of the decorative molded article, similar to the preferred embodiment corresponding to claim 4. Further, for example, by forming the second clear coating layer laminated on the other colored coating layer to a relatively large thickness, it is possible to form the front surface of the decorative molded article such that it has an increased depth feeling. Moreover, for example, by forming the other colored coating layer on the front surface of the first clear coating in a state in which the front surface of the first clear coating is smoothed, it is possible to make the front surface of the decorative molded article uniform in color.
Preferably, the predetermined color is black.
According to the construction of this preferred embodiment, the colored coating layer is formed using a black paint, and hence, for example, by smoothing the front surface of the clear coating layer, it is possible to obtain the decorative molded article in which a so-called piano-black design, with a black and glossy surface, is caused to appear when the light source is off.
Preferably, a reinforcing member configured to be permeable to light from the light source is disposed between the wood veneer and the base.
According to the construction of this preferred embodiment, the above-described reinforcing member is disposed between the wood veneer and the base, and hence, it is possible to reinforce the wood veneer while maintain the light permeability when the light source is off. Further, compared with a case in which the base is directly formed on the back surface of the wood veneer by injection molding or the like, it is possible to prevent the wood veneer from being cracked or discolored during manufacturing of the decorative molded article.
The above and other objects, features, and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.
The present invention will now be described in detail with reference to the drawings showing preferred embodiments thereof.
The base 2 ensures strength and rigidity of the decorative molded article and is formed to be fairly thicker than the wood veneer 4. Further, the base 2 is made of a transparent or translucent synthetic resin, such as polycarbonate or polystyrene, which is permeable to light produced by the light source, denoted by reference symbol L, provided on the back surface side thereof.
The wood veneer 4 is provided for causing a natural grain of the wood veneer 4 itself to appear on the front surface side of the decorative molded article 1A, and is formed by slicing wood material of a predetermined kind (e.g. walnut, maple, ash, or the like) to a very small predetermined thickness (e.g. 200 μm) such that it has a grain and is permeable to light from the light source L. Note that as shown in
The reinforcing member 3 reinforces the wood veneer 4 which is easy to crack, and also functions as an anchoring layer for joining and integrating the base 2 by injection molding. Further, the reinforcing member 3 is formed to be permeable to light from the light source L, and is made of a fibrous material, such as a nonwoven fabric, a woven fabric, or Japanese paper, a wood veneer, a resin film, or a composite of any of these materials.
The colored coating layer 5 is formed by coating the wood veneer 4 with a predetermined black paint (e.g. urethane paint) as a thin film having a predetermined thickness (e.g. 10 μm) such that the vessels of the wood veneer 4 are not buried. Further, the colored coating layer 5 is configured such that the grain of the wood veneer 4 is made difficult to visually recognize from the front surface side when the light source L is off and is recognizable when the same is on.
The clear coating layer 6A is formed by coating the colored coating layer 5 with a predetermined clear paint which is colorless and transparent (e.g. a polyester paint), as a thick film having a relatively large predetermined thickness (e.g. 600 μm) such that the vessels of the wood veneer 4 are buried. Further, the clear coating layer 6A is polish-finished by a predetermined surface treatment (e.g. buffing or top-coating).
The decorative molded article 1A thus constructed is applied to an interior component of an automotive vehicle, specifically, a figure panel for an instrument panel or a center console, and the light source L is disposed on the back surface side thereof. As mentioned above,
On the other hand,
As described above, according to the decorative molded article 1A according to the first embodiment, when the light source L is off, on the front surface side of the decorative molded article 1A, a piano black design is caused to appear by the black color of the colored coating layer 5 and the clear coating layer 6A, whereas when the light source L is on, on the front surface side of the decorative molded article 1A, a design is caused to appear which looks as if the grain of the wood veneer 4 rises to the surface. Thus, it is possible to cause designs which are very different from each other to appear on the front surface side of the decorative molded article 1A, when the light source L is off and when the same is on, respectively.
In a decorative molded article 1B according to a second embodiment shown in
In a decorative molded article 1C according to a third embodiment shown in
By thus providing the colored coating layer 7 within the clear coating layer 6C, it is possible to obtain the decorative molded article 1C causing designs to appear which are substantially similar to those of the decorative molded article 1B in the second embodiment described above, when the light source L is off and when the light source L is on. Further, by forming the clear coating layer 6C on the colored coating layer 7 to a relatively large thickness, it is possible to form the front surface of the decorative molded article 1C such that it has an increased depth feeling. Further, before forming the colored coating layer 7, the front surface of the clear coating layer 6C thereunder is smoothed, and then the colored coating layer 7 is laminated on the smoothed surface of the clear coating layer 6C, whereby the front surface of the decorative molded article 1 formed to be uniform in color.
In a decorative molded article 1D according to a fourth embodiment shown in
In a decorative molded article 1E according to a fifth embodiment shown in
Next, methods of manufacturing the decorative molded articles 1A to 1E described above will be described with reference to
As shown in
Next, clear coating is performed e.g. by a coating machine M2 for coating the front surface of the wood veneer sheet 8 subjected to the color coating (
On the other hand, as shown in
After the color coating, surface protection clear coating is performed by the coating machine M2 for coating the front surface of the wood veneer sheet 8 (
As described in detail heretofore, according to the decorative molded articles 1A to 1E according to the first to fifth embodiments, when the light source L is off, it is difficult to visually recognize the grain of the wood veneer 4 so that a design based on the colored coating layer 5 and one of the clear coating layers 6A to 6E appears, whereas when the light source L is on, it is possible to visually recognize the grain of the wood veneer 4, causing a design to appear which looks as if the grain rises to the front surface. Thus, it is possible to obtain the decorative molded articles 1A to 1E each of which is capable of making the design appearing on the front surface side thereof largely different between when the light source L is off and when the same is on. Further, according to the decorative molded articles 1A to 1C with a mirror finish, it is possible to cause a piano black design with a black and glossy surface to appear when the light source L is off, whereas according to the decorative molded articles 1D and 1E with an open-pore finish, it is possible to always obtain a design having a surface having a concave convex feeling.
Note that the present invention is not limited to the above-described embodiment, but it can be practiced in various forms. For example, although in the above-described embodiment, as the colored paint, the black paint is used, it is also possible to use a colored paint having a color (e.g. brown or dark blue) other than black. Further, details of the constructions of the decorative molded articles 1A and 1E described in the embodiments are given only by way of example, and they can be changed as appropriate within the scope of the subject matter of the present invention.
Number | Date | Country | Kind |
---|---|---|---|
JP2019/060046 | Mar 2019 | JP | national |
Number | Name | Date | Kind |
---|---|---|---|
20020031620 | Yuzawa | Mar 2002 | A1 |
20100080970 | Hayes | Apr 2010 | A1 |
20190063722 | Sugiyama | Feb 2019 | A1 |
Number | Date | Country |
---|---|---|
4469463 | Dec 2001 | JP |
Number | Date | Country | |
---|---|---|---|
20200307302 A1 | Oct 2020 | US |