JP7389560B2 - Resin parts and system kitchen - Google Patents

Description

TECHNICAL FIELD The present invention relates to a resin member used for a top plate of a system kitchen, and a system kitchen equipped with the resin member for the top plate, the sink, or both.

In recent years, system kitchens have become mainstream, with multiple storage compartments (cabinets) under a single worktop. The worktop, which covers the entire top of the kitchen, has a built-in stove, sink, and a cooking space, which is a flat table surface used primarily for cooking.

A synthetic resin such as artificial marble or a metal plate such as stainless steel is used for the top plate of the worktop. For example, in the kitchen counter of Patent Document 1, a surface layer of artificial marble based on synthetic resin is provided. In the kitchen counter of Patent Document 1, an auxiliary layer having a thermal conductivity higher than that of the surface layer and a coefficient of linear expansion similar to that of the surface layer is attached to the back side of the surface layer. According to Patent Document 1, discoloration and deformation are less likely to occur even at high temperatures in a microwave, and defects such as cracks and delamination are less likely to occur.

Japanese Patent Application Publication No. 9-10053

A kitchen counter made of artificial marble as disclosed in Patent Document 1 has the advantage of having a high aesthetic appearance and excellent design. However, artificial marble kitchen counters (top plates) are prone to scratches due to contact with cooking utensils and tableware. For this reason, there has been a drawback that scratches are easily noticeable and the appearance tends to be lost as the period of use increases.

In view of these problems, an object of the present invention is to provide a resin member such as artificial marble that can prevent scratches from becoming noticeable and maintain a high aesthetic appearance for a long period of time.

In order to solve the above problems, a typical configuration of the resin member according to the present invention is a resin member in which aggregate is dispersed in a resin base material, the surface is subjected to an uneven treatment, and the aggregate is It is characterized by being colored in a color similar to that of the base material.

According to the above configuration, the surface of the resin member is subjected to an uneven treatment, so that scratches caused by contact with cooking utensils or tableware (hereinafter referred to as cooking utensils, etc.) can be made less noticeable. This makes it possible to maintain high aesthetic appearance in the resin member for a long period of time. In addition, because the aggregate, which is harder than the resin, is dispersed, even if the base resin is scraped by contact with cooking utensils, the aggregate is exposed and prevents further scraping of the resin. I can do it. At this time, since the aggregate is colored in a color similar to that of the base material (same color), the exposed aggregate does not stand out. For this reason, it becomes possible to suitably maintain the aesthetic appearance of the resin member.

The average particle size of the aggregate is preferably 300 μm. Further, it is preferably within the range of 150 μm to 500 μm. By setting the particle size as described above, it is possible to prevent the aggregate from peeling off from the resin when scratches are generated, and it is also possible to prevent molding defects of the top plate. Moreover, it is preferable that the interval between aggregates is within 140 μm.

The above-mentioned unevenness treatment preferably has an irregular rock texture. Thereby, scratches caused by contact with cooking utensils or the like can be more suitably made less noticeable, and the above-mentioned effects can be enhanced.

The aggregate is preferably uniformly dispersed throughout the resin member. When molding a resin member in which aggregate is dispersed in resin, the resin contracts, but the aggregate does not. Therefore, when aggregate is contained only in a part of the resin member, for example, in the surface part, the shrinkage is small in the surface part, and the shrinkage is large in other parts. As a result, warping occurs when a large member such as a kitchen countertop is molded using a resin member. On the other hand, by uniformly dispersing the aggregate throughout the resin member, it is possible to suitably prevent warping when a large member is molded using the resin member.

Further, a typical configuration of the system kitchen according to the present invention is characterized in that the above resin member is provided on the top plate, the sink, or both. This makes it possible to provide a system kitchen that can prevent scratches from becoming noticeable and maintain a high aesthetic appearance for a long period of time.

According to the present invention, it is possible to provide a resin member and a system kitchen that can prevent scratches on a resin member such as artificial marble from becoming noticeable and maintain a high aesthetic appearance for a long period of time.

FIG. 2 is a diagram illustrating a system kitchen. It is a typical sectional view of the top plate of this embodiment. It is a figure which shows the example of the surface quality of a top plate. It is a figure explaining the range of the small diameter side of the particle size of aggregate. It is a figure explaining the range of the large diameter side of the particle size of aggregate. It is a figure explaining the performance evaluation result of an Example and a comparative example. It is a figure explaining the detail of scratch resistance. It is a figure explaining the details of high-heat pot resistance.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in these embodiments are merely illustrative to facilitate understanding of the invention, and do not limit the invention unless otherwise specified. In this specification and the drawings, elements having substantially the same functions and configurations are designated by the same reference numerals to omit redundant explanation, and elements not directly related to the present invention are omitted from illustration. do.

(System Kitchen (Kitchen 100))
FIG. 1 is a diagram illustrating a system kitchen (hereinafter referred to as kitchen 100) according to this embodiment. As shown in FIG. 1, the kitchen 100 of this embodiment is a so-called system kitchen that includes a plurality of storage compartments (cabinets) under a single top plate 110 (worktop). The top plate 110 is made of stainless steel and covers the entire upper surface of the kitchen 100. Further, the top plate 110 is provided with a built-in stove 112, a cooking space 114 which is a flat table surface and a kitchen counter used mainly for cooking, and a sink 116.

Below the top plate 110, there are storage cabinets such as a stove cabinet 120 in which the main body of the stove 112 is installed, a base cabinet 130 corresponding to the cooking space 114, and a sink cabinet 140 in which the sink 116 is installed. Each storage unit functions as a storage space, and the empty space within the storage unit also accommodates wiring to the stove 112, water supply and drainage pipes to the sink 116 and the faucet, and the like.

(Top plate 110 (resin member))
FIG. 2 is a schematic cross-sectional view of the top plate 110 of this embodiment. The top plate 110 of this embodiment is made of a resin member 150. As shown in FIG. 2(a), the resin member 150 constituting the top plate 110 has a surface 150a subjected to an uneven treatment. Thereby, scratches caused by contact with cooking utensils or tableware (hereinafter referred to as cooking utensil 102) can be made less noticeable. Therefore, it is possible to maintain a high aesthetic appearance for a long period of time in the top plate 10 made of the resin member 150.

FIG. 3 is a diagram showing an example of the surface texture of the top plate 110. In particular, in this embodiment, as shown in FIG. 3, a rock-like unevenness process is performed. Rock texture is composed of irregularly curved surfaces, and irregular means that the height, spacing, and curvature of mountains and valleys are irregular. Thereby, the scratches caused by contact with the cooking appliance 102 can be more suitably made less noticeable, and the above-mentioned effects can be enhanced. This is because if the surface had a regular uneven shape, scratches and marks from a high-temperature pan would be noticeable. However, the unevenness treatment is not limited to the rock texture, and other treatments and patterns are of course possible.

Referring again to FIG. 2(a). As shown in FIG. 2(a), the top plate 110 includes a resin member 150 that is a base material, and a large-diameter aggregate 154 and a small-diameter filler 156 are dispersed therein. Any hard materials can be used for the aggregate 154 and the filler 156, and for example, both can be made of silica. The main difference between aggregate 154 and filler 156 is particle size, with aggregate 154 having a larger diameter than filler 156.

FIG. 4 is a diagram illustrating the range of the particle size of aggregate on the small diameter side. FIG. 4(a) is a microscope photograph of a case where the surface was scratched with the tip of a knife, and FIG. 4(b) is a SEM cross-sectional photograph of the same case. There are many things that can scratch kitchen countertops, such as forks and other utensils, the bottom of bowls, and the bottom of pots, but we chose knife scratches as the one that causes the deepest scratches. The knife forms scratches as shown in FIG. 4(a), and when the width of the three scratches was measured after making them, the average width was 142.4 μm. Here, as shown in FIG. 4(b), if the particle size of the aggregate 154 is smaller than the width of the scratch, there is a risk that the aggregate 154 will be hollowed out and fall off. Therefore, it can be seen that in order to ensure the durability of the top plate 110, the grain size of the aggregate 154 is preferably 150 μm or more.

Furthermore, in order to ensure the hardness of the top plate 110 (hardness of the resin member 150), the smaller the aggregate 154 is, the larger the amount of the aggregate 154 needs to be. This causes the resin to lose its fluidity during molding, resulting in problems such as clogging during injection into the mold or damage to the mold. Therefore, in order to ensure the manufacturing conditions, it is preferable to increase the particle size of the aggregate 154 to a certain extent so as not to reduce the fluidity. However, if the particle size of the aggregate 154 is made too large, the fluidity of the resin will also be lost.

FIG. 5 is a diagram illustrating the range of the particle size of aggregate on the large diameter side. When the aggregate 154 having the particle size shown in FIG. 5(a) was used, the top plate 110 could be molded without any problem. The particle size at this time was 180 μm to 400 μm, with an average of about 300 μm and a standard deviation of 50.5. On the other hand, when aggregate 154 having the particle size shown in FIG. 5(b) was used, the resin did not spread throughout the mold and gaps and voids were formed. It is also believed that because the top plate was warped after hardening, the aggregate 154 settled to one side and was unevenly distributed (poor dispersion). The particle size at this time was 540 μm to 1550 μm, with an average of about 900 μm and a standard deviation of 253.3. Therefore, it is considered that molding defects can be prevented if the particle size is 500 μm or less.

From the above, it can be seen that the average particle size of the aggregate 154 is preferably 300 μm, and more preferably within the range of 150 μm to 500 μm. The aggregate 154 with an average particle size of 300 μm is a large particle that can be clearly distinguished from the filler 156 conventionally added to artificial marble.

Moreover, it is preferable that the interval between the aggregates 154 be within 140 μm. As mentioned above, the knife wound had an average size of 142.4 μm. Therefore, in order to prevent the knife from penetrating deeply into the resin, it is necessary that the spacing between the aggregates be narrower than the width of the cut made by the knife. Therefore, it is preferable that the interval between the aggregates 154 be within 140 μm, or in other words, it is preferable that the density of the aggregates 154 be set to such an interval.

In addition, in the SEM cross-sectional photograph shown in FIG. 4(b), there are some places where the interval is wider than 142.4 μm. However, this is because FIG. 4(b) only shows one cross section, and other aggregates 154 exist in the depth direction even in areas with wide intervals. In the three-dimensional direction, the spacing between the aggregates 154 is within 140 μm.

Because the large-diameter aggregate 154 is dispersed, even if the resin member 150 serving as the base material is scraped by contact with the cooking device 102 (see FIG. 1), the aggregate 154 is harder than the resin member 150. By exposing the resin member 150, further abrasion of the resin member 150 can be prevented.

In particular, in this embodiment, the aggregate 154 is colored in a color similar to that of the base resin member 150 (same color). This makes the aggregate 154 exposed from the resin member 150 less noticeable. Therefore, it is possible to suitably maintain the aesthetic appearance of the top plate 110 made of a resin member.

As mentioned above, the aggregate 154 is colored in a color similar to that of the resin member 150, but if the particle size is too large, the coloring will not penetrate to the core of the aggregate 154, and when the aggregate 154 is scraped, the uncolored part will be left uncolored. may be exposed. However, by setting the particle size of the aggregate 154 to 500 μm or less, the aggregate 154 can be sufficiently colored to the inside. Therefore, the aggregate 154 can be reliably colored to the core, and it is possible to suitably prevent uncolored portions from being exposed.

Further, in this embodiment, the aggregate 154 is uniformly dispersed throughout the resin member 150, as shown in FIG. 2(a). When molding the resin member 150 in which the aggregate 154 is dispersed, the resin member 150 contracts, but the aggregate 154 does not contract. Therefore, when aggregate is contained in a portion of the resin member 150, for example, in the surface portion, the shrinkage is small in the surface portion, and the shrinkage is large in other portions. Then, when a large member like the top plate 110 is molded using the resin member 150, warping occurs. On the other hand, by uniformly dispersing the aggregate 154 throughout the resin member 150, it is possible to suitably prevent warping when a large member such as the top plate 110 is molded using the resin member 150. .

FIG. 2(b) is a diagram illustrating the configuration of a conventional artificial marble. The surface 150b of the resin member 150 is flat and has a matte finish without gloss. The resin member 150 does not contain any aggregate, and only small-diameter fillers 156 are dispersed throughout the resin member 150.

FIG. 6 is a diagram illustrating the performance evaluation results of the example and the comparative example. As an example, as shown in FIG. 2(a), a top plate 110 is formed of a resin member 150 whose surface is treated with irregular irregularities and aggregates 154 are dispersed in the resin member 150. Using. As a comparative example, as shown in FIG. 2(b), a top plate made of artificial marble with a matte surface and no aggregate dispersed therein was used.

As shown in FIG. 6, the top plate 110 of the example has higher pencil hardness and Mohs hardness than the top plate of the comparative example. This is considered to be because the large-diameter aggregate 154 is dispersed in the base material of the resin member 150 in the top plate 110 of the example. As described above, since the top plate 110 of the embodiment has high hardness, it is possible to suitably prevent scraping due to contact with the cooking utensil 102.

FIG. 7 is a diagram illustrating details of scratch resistance. 7(a) to (c) are views of the surface of the top plate 110 of the example, and FIGS. 7(d) to (f) are views of the surface of the top plate of the comparative example. . In the top plate 110 of the embodiment shown in FIG. 7(a), aggregate 154 is dispersed throughout and the surface is textured. The top plate of the comparative example shown in FIG. 7(d) has a matte-treated surface.

As shown in FIG. 6, the top plate 110 of the example has higher scratch resistance than the top plate of the comparative example. As shown in FIG. 7(b), the top plate 110 of the example has inconspicuous scratches on the surface, but as shown in FIG. 7(e), the top plate of the comparative example has obvious scratches on the surface. It is occurring. Therefore, by applying unevenness to the surface as in the embodiment, the contact area with the cooking device 102 is reduced to prevent scratches, and the hardness of the top plate 110 is increased by the aggregate 154. It can be seen that scratches caused by contact with the cooker 102 can be reduced. Furthermore, as shown in FIG. 7(c), it can be seen that by coloring the aggregate 154 in a color similar to that of the resin member 150, scratches such as those shown in FIG. 7(f) can be made less noticeable.

FIG. 8 is a diagram illustrating details of high-heat pot resistance. 8(a) to 8(b) are views of the surface of the top plate 110 of the example, and FIGS. 8(c) to 8(d) are views of the surface of the top plate of the comparative example. . In the top plate 110 of the embodiment shown in FIG. 8(a), aggregate 154 is dispersed throughout and the surface is textured. The top plate of the comparative example shown in FIG. 8(c) has a matte-treated surface.

As shown in FIG. 8(a), on the top plate 110 of the example, no pot marks can be seen when a high-temperature pot is placed, but as shown in FIG. 8(c), on the top plate of the comparative example, , traces of the pot when placed at high temperatures can be clearly observed. From this, it can be understood that by applying unevenness to the surface as in the embodiment, it is possible to reduce the contact area with the high-temperature cooker 102 and make it difficult to cause pot marks.

In the above embodiment, an example is shown in which the aggregate 154 is dispersed on the top plate 110 of the kitchen 100. However, the present invention is not limited to this, and may be applied to the sink 116 or both the top plate 110 and the sink 116. Furthermore, it may be applied to the front plate of each cabinet drawer.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It is clear that those skilled in the art can come up with various changes and modifications within the scope of the claims, and these naturally fall within the technical scope of the present invention. Understood.

INDUSTRIAL APPLICATION This invention can be utilized for the resin member used for the top plate etc. of a system kitchen, and the system kitchen equipped with this on the top board.

100... Kitchen, 102... Cooker, 110... Top plate, 112... Stove, 114... Cooking space, 116... Sink, 120... Stove cabinet, 130... Base cabinet, 140... Sink cabinet, 150... Resin member, 150a... Surface , 154... aggregate, 156... filler

Claims (6)

A resin member in which aggregate is dispersed in a resin base material,
An uneven shape is formed on the surface,
The aggregate is harder than the resin member,
A resin member characterized in that the inside of the aggregate is colored in the same color as the base material. The resin member according to claim 1, wherein the particle size of the aggregate is 300 μm on average. The resin member according to claim 1 or 2, wherein the interval between the aggregates is within 140 μm. The resin member according to any one of claims 1 to 3, wherein the uneven shape has an irregular rock texture. 5. The resin member according to claim 1, wherein the aggregate is uniformly dispersed throughout the resin member. A system kitchen comprising the resin member according to any one of claims 1 to 5 on a top plate, a sink, or both.

Images