Cooking tray for heating cooker

Abstract

To achieve a structure which can change tones and brightness / darkness according to a region, easily by suppressing the number of pieces of coloring, in a glass plate for constituting a top plate for a heating cooker.SOLUTION: A top plate 3 for a heating cooker includes a glass plate 10, and a plurality of first coloring parts 21. The first coloring part 21 is visible from the upper side of the glass plate 10 via the glass plate 10. In the case where a virtual region arrangement VA is set in which a rear surface 10A is partitioned into a plurality of individual regions AR having a predetermined shape, and in the case where a virtual region row L is set in such a manner that, in the virtual region arrangement VA, the plurality of individual regions AR are arrayed in a first direction along the rear surface 10A and the plurality of individual regions AR are partitioned in such a manner that the plurality of virtual region rows L are arrayed in a second direction along the rear surface 10A, at each individual region AR, each first coloring part 21 is arranged. In the plurality of individual regions AR, a ratio occupied by the first coloring part 21 is different in any type of individual region AR and in other types of individual region AR.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a top plate for a cooking appliance. [Background technology]

[0002] Patent Document 1 discloses a top plate for a cookware. The top plate includes a glass plate. A light-blocking coating or a decorative coating is provided on the surface of the glass plate to conceal the internal components of the cookware and improve its appearance. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-338359 Summary of the Invention [Problem to be solved by the invention]

[0004] When creating variations in shading or brightness on a baking sheet for a cooking utensil, it is conceivable to apply patterns or colors using methods such as multicolor printing, etc. However, this method requires printing many colors, which can easily lead to complex processing equipment and methods.

[0005] One of the objects of the present disclosure is to more easily realize a configuration in which the shade or brightness can be changed depending on the region in a glass plate that constitutes a top plate for a heating cooker, by reducing the number of colors. [Means for solving the problem]

[0006] The present disclosure provides a top plate for a cooking appliance, A top plate for a cooking appliance having a glass plate, a plurality of first colored portions overlapping the glass plate in a configuration covering one plate surface of the glass plate; a second colored portion that overlaps the glass plate and covers an area on the one plate surface other than the first colored portion, and that is different from the glass plate and the first colored portion in at least one of hue, saturation, and brightness; Equipped with the first colored portion and the second colored portion are visible from above the glass plate with or without the glass plate; When a virtual area array is set by dividing the one plate surface into a plurality of individual areas of a predetermined shape, a virtual area row is set in the virtual area array so that the plurality of individual areas are lined up in a first direction along the one plate surface, and the plurality of individual areas are divided so that the virtual area row is lined up in a second direction along the one plate surface, each of the first colored portions is arranged in each of the individual areas, In the plurality of individual regions, the proportion of the first colored portions in one type of individual region and the proportion of the second colored portions in another type of individual region are different. [Effects of the Invention]

[0007] According to the technology disclosed herein, a glass plate constituting a top plate for a cooking appliance can be configured to change shades and brightness depending on the region, more easily achieved by reducing the number of colors. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view schematically illustrating a built-in stove according to a first embodiment. [Figure 2] FIG. 2 is a plan view of the built-in stove of FIG. [Figure 3] FIG. 3 is an explanatory diagram showing an enlarged schematic view of a part of the colored layer as viewed from above through the glass plate. [Figure 4] FIG. 4 is a schematic cross-sectional view conceptually showing an enlarged cross section of a part of the top plate cut in a predetermined direction. [Figure 5]FIG. 5 is an explanatory diagram schematically illustrating, in an enlarged scale, a part of the colored layer visible from above through the glass plate in the top plate of the second embodiment. [Figure 6] FIG. 6 is an explanatory diagram schematically illustrating, in an enlarged scale, a part of the colored layer visible from above through the glass plate in the top plate of the third embodiment. [Figure 7] FIG. 7 is an explanatory diagram schematically illustrating, in an enlarged scale, a part of the colored layer visible from above through the glass plate in the top plate of the fourth embodiment. [Figure 8] FIG. 8 is a schematic cross-sectional view conceptually showing an enlarged cut surface of a part of a tabletop in a predetermined direction in a tabletop according to another embodiment. [Figure 9] FIG. 9 is a schematic cross-sectional view conceptually showing, in an enlarged scale, a cut surface cut in a predetermined direction of a part of a top plate having a different configuration from that of FIG. 8 according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] The following describes exemplary embodiments of the present disclosure. Note that the following exemplary features [1] to [5] may be combined in any compatible combination.

[0010] [1] A top plate for a cooking appliance having a glass plate, a plurality of first colored portions overlapping the glass plate in a configuration covering one plate surface of the glass plate; a second colored portion that overlaps the glass plate and covers an area on the one plate surface other than the first colored portion, and that is different from the glass plate and the first colored portion in at least one of hue, saturation, and brightness; Equipped with the first colored portion and the second colored portion are visible from above the glass plate with or without the glass plate; When a virtual area array is set by dividing the one plate surface into a plurality of individual areas of a predetermined shape, a virtual area row is set in the virtual area array so that the plurality of individual areas are lined up in a first direction along the one plate surface, and the plurality of individual areas are divided so that the virtual area row is lined up in a second direction along the one plate surface, each of the first colored portions is arranged in each of the individual areas, In the plurality of individual regions, the ratio of the first colored portions to the second colored portions is different between one type of the individual regions and another type of the individual regions. A baking sheet for a heating cooker.

[0011] The cooktop for a cooking appliance described in [1] has a first colored portion and a second colored portion arranged in each of a plurality of individual regions constituting a virtual region array, allowing the coloration of the glass plate to be adjusted based on the coloration of each individual region. In this cooktop, each individual region of the glass plate is visually perceived as having a shading or brightness that varies depending on the proportion of the first colored portion and the ratio of the first colored portion to the second colored portion. Since this cooktop has multiple individual regions with different proportions of the first colored portion and the ratio of the first colored portion to the second colored portion, the shading or brightness can be varied depending on the region of the glass plate. Furthermore, because the shading or brightness can be varied by changing the proportion of the first colored portion and the ratio of the first colored portion to the second colored portion, it is not necessary to print multiple colors to change the shading or brightness, and it can be more reliably achieved with fewer colors. Therefore, this cooktop allows for a configuration that allows shading or brightness to be varied depending on the region of the glass plate to be more easily achieved by limiting the number of colors.

[0012] [2] A top plate for a heating cooker described in [1], in which, when the virtual area arrangement is set, at least some of the multiple individual areas are ratio change areas in which the ratio gradually increases as one moves from one side to the other side in a specified direction along one of the plate surfaces.

[0013] In the top plate for a cooking appliance described in [2], the color intensity of the individual regions when viewed from a distance varies depending on the proportion of the first colored portion in the individual region. The top plate is configured so that the ratio gradually increases from one side to the other in a predetermined direction in the ratio changing region, thereby creating a gradation of color. Moreover, in the ratio changing region, a ratio is set for each virtually defined region, and the ratio is configured to gradually increase, creating a balanced gradation of color. Note that the gradation here means that when a user views the top plate from a distance (for example, when a user views the top plate from a typical standing position when operating a stove), the color intensity or shading of the top plate appears to change gradually.

[0014] [3] A top plate for a heating cooker described in [1] or [2], wherein the individual areas are areas separated by rectangular or square boundaries, and the virtual area arrangement is an area in which multiple individual areas are set in a grid pattern.

[0015] In the top plate for a heating cooker described in [3], the virtual area arrangement can be a simple area in which multiple individual areas are set in a lattice pattern, making it easy to set such an area arrangement.

[0016] [4] A top plate for a heating cooker described in any of [1] to [3], wherein the center of each of the first colored portions coincides with the center of each of the individual areas, in both the individual areas of one of the types and the individual areas of the other types.

[0017] The top plate for a cooking device described in [4] is less likely to have a state in which the arrangement of the first colored portions varies greatly between individual regions, and the first colored portions are more likely to be arranged in a balanced manner. Therefore, the aesthetic appearance can be improved from the viewpoint of the balance of the first colored portions.

[0018] [5] A top plate for a heating cooker described in any of [1] to [4], wherein the outer edge of each of the first colored portions of the individual area of ​​one of the types and the individual area of ​​the other type is circular or polygonal, and the outer edge shape of the first colored portion of the individual area of ​​one of the types is similar to the outer edge shape of the first colored portion of the individual area of ​​the other type.

[0019] The top plate for the heating cooker described in [5] can have a sense of uniformity in shape even in individual areas with different coloring patterns, making it easier to prevent a decrease in aesthetic appearance caused by noticeable differences in shape.

[0020] First Embodiment The first embodiment will be described below with reference to the drawings. 1. Overall structure of the cooking device The cooking device 1 shown in Figures 1 and 2 is configured as a gas stove equipped with a gas burner as a heating unit. In Figure 2, the bottom, top, right, and left correspond to the front, back, right, and left of the cooking device 1, respectively. Specifically, the shorter side of the plate surface of the top plate 3, which is configured in a plate shape, corresponds to the front-to-back direction, and the longer side corresponds to the left-to-right direction. The thickness direction of the top plate 3 corresponds to the up-to-down direction.

[0021] The cooking appliance 1 shown in FIG. 1 is configured as a gas stove equipped with a gas burner. The cooking appliance 1 has a roughly rectangular parallelepiped appliance body 2. A top plate 3 is attached to the top of the appliance body 2. A right burner 4 is provided at the front right of the top plate 3 (near the right end and the front end), a left burner 5 is provided at the front left of the top plate 3 (near the left end and the front end), and a rear burner 6 is provided at the rear center. Although not described in detail, each of the burners 4 to 6 is provided with an igniter (not shown) for ignition. Trivets 4A, 5A, and 6A are provided around each of the burners 4 to 6 on the top plate 3. A grill exhaust port 7 is provided near the rear end of the top plate 3, which communicates with a grill chamber (not shown) installed within the appliance body 2.

[0022] A grill door 8 is provided at the center of the front of the appliance body 2. The grill door 8 can slide back and forth by a rail unit (not shown) provided inside the grill chamber. A handle 9 is provided at the center of the front of the grill door 8.

[0023] As shown in FIG. 1, four ignition buttons 11 to 14 are provided near the front of the cooking appliance 1, corresponding to the burners 4 to 6 and the grill chamber, respectively. The ignition buttons 11 to 14 are circular when viewed from the front. The ignition button 11 is pressed to ignite / extinguish the right burner 4. The ignition button 12 is pressed to ignite / extinguish the left burner 5. The ignition button 13 is pressed to ignite / extinguish the rear burner 6. The ignition button 14 is pressed to ignite / extinguish the grill burner (not shown) inside the grill chamber. When each of the ignition buttons 11 to 14 is pressed to ignite, it protrudes forward in a cylindrical shape from the front of the appliance body 2 by a well-known push-on / push-off mechanism (not shown), and can be rotated in this protruding state. The user can adjust the heat of the various burners 4 to 6 or the grill burner by turning the ignition buttons 11 to 14, respectively.

[0024] As shown in Figures 1 and 2, the top plate 3 includes a glass plate 10. The glass plate 10 is made of transparent or translucent glass. The glass plate 10 is made of glass such as borosilicate glass or crystallized glass. The glass plate 10 may be colored and transparent. The glass plate 10 has a rectangular shape with rounded corners in a plan view. The glass plate 10 has a uniform thickness overall. The glass plate 10 is provided with openings (not shown) through which the burners 4 to 6 are inserted and an opening (not shown) surrounding the grill exhaust port 7.

[0025] 2.Detailed composition of the top plate FIG. 3 is an explanatory diagram schematically illustrating a portion of the colored layer 20 as viewed from above through the glass plate 10. FIG. 4 is a schematic cross-sectional view conceptually showing an enlarged cut surface of a portion of the top plate cut in a predetermined cutting direction. FIG. 4 is a schematic cross-sectional view conceptually showing a cut surface cut through the center of each first colored portion 21 in one imaginary region row. In FIG. 4, hatching and the like of the glass plate 10 are omitted, and the front and back surfaces of the glass plate 10 are indicated by solid lines. In FIG. 4, the ranges of the first colored portions 21 are conceptually indicated as solid black areas, and the ranges of the second colored portions 22 are conceptually indicated as gray areas. As shown in FIGS. 3 and 4, the top plate 3 includes a colored layer 20 formed on one surface of the glass plate 10 (in this embodiment, the back surface (lower surface) 10A). The colored layer 20 is a printed layer printed, for example, by screen printing. Screen printing is a printing method in which a stencil is placed on the rear surface 10A of the glass plate 10, and ink is applied and printed, and this process is repeated for each color. The colored layer 20 is a layer containing a colorant (pigment, etc.). The colored layer 20 is a layer formed mainly from an ink composition (a composition containing a colorant and a solvent) ejected onto the rear surface 10A of the glass plate 10. The color of the colorant appears throughout the colored layer 20. The colored layer 20 is visible from above the glass plate 10 through the glass plate 10.

[0026] As shown in Figures 3 and 4, the top plate 3 has a plurality of first colored portions 21 and second colored portions 22 on the rear surface 10A of the glass plate 10. The first colored portions 21 are part of the colored layer 20. The first colored portions 21 overlap the glass plate 10, partially covering the rear surface 10A of the glass plate 10. At least one of the hue, saturation, and brightness of the first colored portions 21 differs from that of the glass plate 10. Hue refers to a relative difference in color tone. Hue refers to a difference in hue (tone), and is a color specified by, for example, red, orange, yellow, green, blue, purple, etc. Saturation refers to the vividness of a color. The higher the saturation, the more vivid the color, and the lower the saturation, the more dull and muddy the color. Brightness refers to the brightness of a color. The higher the brightness, the whitish the color, and the lower the brightness, the blackish the color. The first colored portion 21 is visible from above the glass plate 10 through the glass plate 10 .

[0027] At least one of the hue, saturation, and brightness of the color appearing in the first colored portion 21 is different from that of the second colored portion 22, which will be described later. For example, as will be described later, the color of the first colored portion 21 is blue, and the color of the second colored portion 22 is a blue that is darker than the blue of the first colored portion 21. In this case, the first colored portion 21 and the second colored portion 22 have the same hue, but differ in at least one of the saturation and brightness. Because at least one of the hue, saturation, and brightness of the first colored portion 21 is different from that of the second colored portion 22, the first colored portion 21 and the second colored portion 22 can be visually distinguished from each other.

[0028] 3, the first colored portion 21 has a square shape when viewed from above and below. The outer edge of the first colored portion 21 is a square. Here, a square includes a shape that is substantially the same as a square (for example, a shape similar to a square, such as one with partial irregularities).

[0029] The arrangement of the first colored portions 21 will be described when a virtual area array VA is set on the rear surface 10A of the glass plate 10 as shown in FIG. 3. The virtual area array VA is an area array in which the rear surface 10A is divided into a plurality of individual areas AR of a predetermined shape. The virtual area array VA is set, for example, on the entire rear surface 10A. FIG. 3 shows a portion of the virtual area array VA, and portions not shown also have a similar area array. The individual areas AR are areas separated by square boundaries. That is, the individual areas AR are square. The outer edges of the individual areas AR are square. The outer edge shape of the individual areas AR is similar to the outer edge shape of the first colored portions 21 included in the individual areas AR. The centers of the individual areas AR coincide with the centers of the first colored portions 21. The virtual area array VA is an area in which a plurality of individual areas AR are set in a lattice pattern (separated by lattice-shaped boundaries). A lattice pattern is a shape in which multiple vertical lines (lines parallel to the first direction in Figure 3) and horizontal lines (lines parallel to the second direction in Figure 3) intersect, like a lattice pattern.

[0030] As shown in FIG. 3, in the virtual area array VA, a virtual area column L is set so that a plurality of individual areas AR are aligned in a first direction along the back surface 10A. The first direction is, for example, the front-to-rear direction. The plurality of individual areas AR are aligned continuously in the first direction. "The individual areas AR are aligned continuously" means that two adjacent individual areas AR are not separated and their boundaries overlap. For example, in a portion of the virtual area column L1 shown in FIG. 3, the individual areas A, B, C, D, and E are aligned continuously from one side (front side) to the other side (rear side) in the first direction. Similarly, in the virtual area columns L2, L3, L4, and L5, the individual areas AR are aligned continuously from one side to the other side in the first direction.

[0031] As shown in FIG. 3, multiple virtual area columns L are set side by side in a second direction along the back surface 10A. In the first embodiment, the second direction is the left-right direction. For example, in a part of the virtual area array VA shown in FIG. 3, virtual area columns L1, L2, L3, L4, and L5 are continuously lined up in the second direction. In this embodiment, "continuously lined up virtual area columns L" means that two adjacent virtual area columns L are not separated and their boundaries overlap.

[0032] When the virtual region array VA is set as described above, each individual region AR is arranged with a first colored portion 21. The first colored portion 21 is arranged within the individual region AR so that the four sides (four straight line portions of the outer edge) of the first colored portion 21 are parallel to the four sides (four straight line portions of the outer edge) of the individual region AR, respectively.

[0033] As shown in FIG. 3 , in the multiple individual regions AR, the proportion of the first colored portions 21 occupied by one type of individual region AR differs from the proportion of the other type of individual region AR. For example, when the first colored portions 21 arranged in individual region A are designated as first colored portions 21A and the first colored portions 21 arranged in individual region B are designated as first colored portions 21B, the proportion of the first colored portions 21B occupied by the individual region B is greater than the proportion of the first colored portions 21A occupied by the individual region A. The individual regions AR are visually recognized in a colored state according to the proportion occupied by the first colored portions 21. Therefore, the presence of multiple individual regions AR with different proportions occupied by the first colored portions 21 makes it possible to produce different colored states at different positions on the rear surface 10A of the glass plate 10.

[0034] At least a portion of the individual regions AR is a ratio-changing region in which the proportion of the first colored portion 21 in the individual region AR gradually increases from one side (front side) to the other side (rear side) in a predetermined direction (front-rear direction in this first embodiment) along the back surface 10A. More specifically, in the ratio-changing region, the proportion of the first colored portion 21 in the individual region AR increases from one side to the other in the front-rear direction. In this first embodiment, although only a portion is shown in FIG. 3 , all of the individual regions AR (the entire virtual region array VA) are ratio-changing regions CR. For example, taking a portion of the virtual region array L1 as an example, the proportion of the first colored portion 21A in individual region A increases, followed by the proportion of the first colored portion 21B in individual region B, the proportion of the first colored portion 21C in individual region C, the proportion of the first colored portion 21D in individual region D, and the proportion of the first colored portion 21E in individual region E. In the virtual region columns L2, L3, L4, and L5, similar to the virtual region column L1, the proportion of the first colored portions 21 in the individual region AR increases from the front to the rear. The color density of the individual region AR when viewed from a distance varies depending on the proportion of the first colored portions 21 in the individual region AR. Therefore, by gradually increasing the proportion from the front to the rear in the front-to-rear direction in the ratio changing region CR, a gradation pattern in the color of the first colored portions 21 can be visually recognized when the user views the tabletop 3 from a distance. On the other hand, when the user views the tabletop 3 up close, a lattice pattern (a pattern with a lattice frame surrounding the first colored portions 21) can be visually recognized.

[0035] In both the one type of individual region AR and the other type of individual region AR, the center of each first colored portion 21 coincides with the center of each individual region AR. In the first embodiment, although only a portion is shown in FIG. 3, in all of the multiple individual regions AR (the entire virtual region array VA), the center of each first colored portion 21 coincides with the center of each individual region AR. For example, as shown in FIG. 3, the center A1 of individual region A coincides with the center A2 of the first colored portion 21A. The center B1 of individual region B coincides with the center B2 of the first colored portion 21B. In this way, the first colored portion 21 can be arranged near the center of the individual region AR. Therefore, a sense of uniformity is created in the arrangement of the first colored portions 21 between different positions where differences in coloring occur, thereby improving the aesthetic appearance.

[0036] The outer edge of each of the first colored portions 21 is square in both one type of individual region AR and the other type of individual region AR. In the first embodiment, although only a portion is shown in FIG. 3, the outer edge of each of the first colored portions 21 is square in all of the multiple individual regions AR (the entire virtual region array VA). The outer edge shape of the first colored portions 21 of one type of individual region AR is a square similar to the outer edge shape of the first colored portions 21 of the other type of individual region AR. In the first embodiment, although only a portion is shown in FIG. 3, the outer edge shapes of the individual regions AR are similar in all of the multiple individual regions AR (the entire virtual region array VA). This creates a sense of unity in the shape of the first colored portions 21 between different positions where differences in coloring occur, thereby improving the aesthetic appearance.

[0037] As shown in FIGS. 3 and 4 , the second colored portion 22 overlaps the glass plate 10 in a configuration that partially covers the area of ​​the rear surface 10A of the glass plate 10 other than the first colored portion 21. As shown in FIG. 4 , the second colored portion 22 covers the first colored portion 21 from the side opposite the rear surface 10A of the glass plate 10. The second colored portion 22 is part of the colored layer 20. The second colored portion 22 is visible from above the glass plate 10 through the glass plate 10. The second colored portion 22 differs from the glass plate 10 in at least one of hue, saturation, and brightness. Therefore, the second colored portion 22 and the glass plate 10 can be visually distinguished. The colored layer 20 includes the first colored portion 21 and the second colored portion 22, which creates an aesthetic appearance based on the contrast between the first colored portion 21 and the second colored portion 22.

[0038] 3, the proportion of dark blue (the color of the first colored portion 21) increases from the front side to the rear side of the table top 3. Therefore, when a user views the table top 3 from a distance, a gradation pattern in which the blue becomes darker from the front side to the rear side is visible.

[0039] As described above, the top plate 3 for the cooking appliance 1 is a top plate for a cooking appliance that includes a glass plate 10, and includes a first colored portion 21 and a second colored portion 22. The first colored portion 21 overlaps the glass plate 10, covering one plate surface (the back surface (lower surface) 10A) of the glass plate 10. The second colored portion 22 overlaps the glass plate 10, covering an area on at least one plate surface (the back surface 10A) other than the first colored portion 21, and differs from the glass plate 10 and the first colored portion 21 in at least one of hue, saturation, and brightness. In a representative example of the first embodiment, the second colored portion 22 is disposed not only in the area other than the first colored portion 21 but also in the area below the first colored portion 21. The first colored portion 21 and the second colored portion 22 may differ in only one of hue, saturation, and brightness, or may differ in any two or all three types. The first colored portion 21 and the second colored portion 22 are visible from above the glass plate 10 through the glass plate 10. The upper surface of the first colored portion 21 (the surface in contact with the glass plate 10) is a region of the first colored portion 21 that is visible from above the glass plate 10 through the glass plate 10. The upper surface of the second colored portion 22 (the surface in contact with the glass plate 10) of a portion that is arranged in a region other than the first colored portion 21 is a region of the second colored portion 22 that is visible from above the glass plate 10 through the glass plate 10.

[0040] When a virtual region array VA is set by dividing one plate surface (rear surface 10A) of the glass plate 10 into a plurality of individual regions AR of a predetermined shape, and a virtual region row L is set in the virtual region array VA so that the plurality of individual regions AR are aligned in a first direction along one plate surface (rear surface 10A) and the plurality of individual regions AR are divided so that the virtual region row L is aligned in a second direction along one plate surface (rear surface 10A), each of the individual regions AR is arranged in each of the individual regions AR. In the plurality of individual regions AR, the proportion of the first colored portions 21 in one type of individual region AR differs from that in the other types of individual regions AR, and the proportions of the first colored portions 21 and the second colored portions 22 differ. Specifically, the proportions of the visible surface of the first colored portions 21 (the surface visible from above) and the visible surface of the second colored portions 22 (the surface visible from above) differ between one type of individual region AR and the other types of individual regions AR. More specifically, among the multiple individual regions AR, the ratio of the top surface of the first colored portion 21 (the surface visible from above through the glass plate 10) to the top surface of the region of the second colored portion 22 other than the first colored portion 21 (the surface visible from above through the glass plate 10) differs between one type of individual region AR and another type of individual region AR.

[0041] In the example of FIG. 3, in each virtual region array L, the multiple first colored portions 21 are arranged side by side in the first direction with equal center-to-center intervals. In each virtual region array L, the centers of the multiple first colored portions 21 are located on an imaginary straight line. In the region array VA, the boundary between two adjacent virtual region arrays L in the second direction is an imaginary straight line in the first direction, and multiple such boundaries (imaginary straight lines) in the first direction are set parallel and equally spaced apart. For each boundary (imaginary straight line) in the first direction, the distance to the center of each first colored portion 21 in the virtual region array L on both sides separated by the boundary is a fixed value X. Specifically, in the region array VA, the boundaries in the first direction are defined by multiple imaginary straight lines in the first direction, and the multiple imaginary straight lines in the first direction are set at equal intervals. Furthermore, in the region array VA, the boundaries in the second direction are defined by multiple imaginary straight lines in a second direction perpendicular to the first direction, and the multiple imaginary straight lines in the second direction are set at equal intervals. The boundaries separating the individual regions are defined in a grid pattern by the multiple imaginary straight lines in the first direction and the multiple imaginary straight lines in the second direction. Each first colored portion 21 is disposed in each individual region AR whose imaginary boundaries are defined in a grid pattern. The center (e.g., centroid) of each first colored portion 21 is located at the center of each individual region AR.

[0042] In the example of FIG. 3, a plurality of "first colored portion rows, each of which has a plurality of visible surfaces (upper surfaces viewed from above) of the first colored portions 21 aligned in a first direction," are provided in contact with the lower surface of the glass plate 10, and a plurality of such first colored portion rows are arranged in the second direction. In each of the first colored portion rows, the center of each first colored portion 21 is located on an imaginary straight line in the first direction. The plurality of first colored portions 21 are provided with a plurality of "first colored portion rows, each of which has a plurality of visible surfaces (upper surfaces viewed from above) of the first colored portions 21 aligned in the second direction," and a plurality of such first colored portion rows are arranged in the first direction. In each of the first colored portion rows, the center of each first colored portion 21 is located on an imaginary straight line in the second direction. The plurality of first colored portions 21 arranged in this manner have a constant center-to-center distance in the first direction between any two adjacent first colored portions 21 in the first direction, and a constant center-to-center distance in the second direction between any two adjacent first colored portions 21 in the second direction. That is, each first colored portion column is aligned in the first direction so that the spacing between the centers of the first colored portions 21 is constant. Furthermore, each first colored portion row is aligned in the second direction so that the spacing between the centers of the first colored portions 21 is constant. The outer edge shape of the viewing surface (top surface) of each of the plurality of first colored portions 21 has a predetermined shape (square in the example of FIG. 3), and the size of the outer edge shape varies. The shape of the viewing surface (top surface) of each of the plurality of first colored portions 21 is selected from a plurality of similar shapes (a plurality of similar square shapes in the example of FIG. 3). The visible surface (upper surface visible from above) of the second colored portion 21 is arranged in a form that contacts the lower surface of the glass plate 10, other than the area where the visible surfaces (upper surfaces) of the multiple first colored portions 21 are arranged.

[0043] 3. Effects of the First Embodiment In the tabletop 3, the first colored portions 21 and the second colored portions 22 are arranged in each of the multiple individual regions AR that constitute the virtual region array VA, so that the coloring state of the glass plate 10 can be adjusted by the coloring state of each individual region AR. In this tabletop 3, each individual region AR of the glass plate 10 is visually perceived as having a shading or brightness that varies depending on the proportion of the first colored portions 21 and the ratio of the first colored portions 21 to the second colored portions 22. In this tabletop 3, there are multiple individual regions AR that have different proportions of the first colored portions 21 and the ratio of the first colored portions 21 to the second colored portions 22, so that the shading and brightness can be changed depending on the region of the glass plate 10. Moreover, because the shading and brightness can be changed by changing the configuration of "changing the proportion of the first colored portions 21 and the ratio of the first colored portions 21 to the second colored portions 22," it is not necessary to print more colors to change the shading and brightness, and they can be more reliably achieved with fewer colors. Therefore, this top plate 3 can more easily realize a configuration in which the shading or brightness can be changed depending on the region of the glass plate 10 by reducing the number of colors.

[0044] One method for forming a colored layer on a glass plate is screen printing, which is suitable for large-lot production and has cost advantages. Screen printing requires the process of overlaying a stencil on a glass plate and printing ink onto it, a process that is repeated for each color. Therefore, to form a gradation pattern, a large number of colors corresponding to the color density must be used, which complicates operations such as changing the stencil. However, in the first embodiment, a gradation pattern can be applied to the top plate using two colors, the color of the first colored portion 21 and the color of the second colored portion 22, thereby minimizing the complexity of the printing process even when using screen printing (printing in which ink is overprinted for each color). Because a gradation pattern can be applied to the glass plate 10 using two colors, the first color applied to the first region and the second color applied to the second region, the complexity of the printing process can be minimized even when using screen printing.

[0045] In the tabletop 3, the color density of the individual area AR when viewed from a distance varies depending on the ratio of the individual area AR occupied by the first colored portion 21. Therefore, the ratio gradually increases from the front side to the rear side in the front-to-rear direction in the ratio changing area CR, thereby creating a gradation of color.

[0046] The virtual area array VA is an area in which a plurality of individual areas AR are set in a grid pattern. Therefore, the virtual area array VA can be an area with a simple shape in which a plurality of individual areas AR are set in a grid pattern. This makes it easier to set the arrangement of the individual areas AR.

[0047] In either one type of individual region AR or the other type of individual region AR, the center of each first colored portion 21 coincides with the center of each individual region AR. Therefore, in either one type of individual region AR or the other type of individual region AR, the first colored portion 21 can be arranged on the central side of the individual region AR. Therefore, a sense of uniformity is created in the arrangement of the first colored portions 21 between different positions where differences in coloring occur, thereby improving the aesthetic appearance.

[0048] The outer edge shape of the first colored portion 21 of one type of individual region AR is similar to the outer edge shape of the first colored portion 21 of the other type of individual region AR. Therefore, a sense of unity in the shape of the first colored portion 21 is created between different positions where differences in coloring occur, thereby improving the aesthetic appearance.

[0049] Second Embodiment The second embodiment will be described below with reference to Fig. 5. The top plate 3 of the second embodiment has a different shape of the first colored portion from that of the first embodiment. Therefore, in the following, parts having the same configuration as those of the first embodiment will be assigned the same reference numerals as those of the first embodiment, and detailed description will be omitted, and differences from the first embodiment will be mainly described.

[0050] As shown in FIG. 5 , the top plate 3 has a plurality of first colored portions 221 and second colored portions 222 on the rear surface 10A of the glass plate 10. The first colored portions 221 correspond to an example of the "colored portion" of the present invention. The first colored portions 221 are circular when viewed from the top-bottom direction. The outer edge of the first colored portions 221 is circular. The second colored portions 222 overlap the glass plate 10 in a configuration that partially covers the area on the rear surface 10A of the glass plate 10 other than the first colored portions 221. The second colored portions 222 differ from the first colored portions 221 and the glass plate 10 in at least one of hue, saturation, and brightness.

[0051] 5, taking a portion of the virtual region column L1 as an example, the proportion of the first colored portion 221A in individual region A increases, followed by the proportion of the first colored portion 221B in individual region B, the proportion of the first colored portion 221C in individual region C, the proportion of the first colored portion 221D in individual region D, and the proportion of the first colored portion 221E in individual region E. In the virtual region columns L2, L3, L4, and L5, similar to the virtual region column L1, the proportion of the first colored portion 221 in the individual region AR increases from the front side to the rear side.

[0052] In all of the multiple individual regions AR (the entire virtual region array VA), the center of each first colored portion 221 coincides with the center of each individual region AR. For example, as shown in Fig. 5, the center A1 of individual region A coincides with the center A22 of the first colored portion 221A. The center B1 of individual region B coincides with the center B22 of the first colored portion 221B.

[0053] In all of the multiple individual regions AR (the entire virtual region array VA), the outer edge of each first colored portion 221 is circular. The outer edge shape of the first colored portion 221 of one type of individual region AR is similar to the outer edge shape of the first colored portion 221 of the other types of individual regions AR. In the second embodiment, although only a portion is shown in FIG. 5 , the outer edge shapes of the individual regions AR are similar circles in all of the multiple individual regions AR (the entire virtual region array VA). This makes it easy to design a configuration in which the proportion occupied by the first colored portion 221 differs between one type of individual region AR and another type of individual region AR simply by changing the diameter of the first colored portion 221.

[0054] Third Embodiment The third embodiment will be described below with reference to Fig. 6. The tabletop 3 of the third embodiment differs from the first embodiment in the method of setting the virtual region array and the shape of the first colored portion. Therefore, in the following, parts having the same configuration as the first embodiment will be assigned the same reference numerals as the first embodiment, and detailed description will be omitted, and differences from the first embodiment will be mainly described.

[0055] As shown in FIG. 6 , the top plate 3 has a plurality of first colored portions 321 and a plurality of second colored portions 322 on the rear surface 10A of the glass plate 10. The first colored portions 321 correspond to an example of the "colored portion" of the present invention. The first colored portions 321 are regular hexagonal when viewed from the top-bottom direction. The outer edge of the first colored portions 321 is also regular hexagonal. The second colored portions 322 overlap the glass plate 10 in a configuration that partially covers the area on the rear surface 10A of the glass plate 10 other than the first colored portions 321. The second colored portions 322 differ from the first colored portions 321 and the glass plate 10 in at least one of hue, saturation, and brightness.

[0056] The arrangement of the first colored portions 321 will be described when a virtual region array VA3 is set on the rear surface 10A of the glass plate 10, as shown in FIG. 6. The virtual region array VA3 is a region array in which the rear surface 10A is divided into a plurality of individual regions AR3 of a predetermined shape. The virtual region array VA3 is set, for example, over the entire rear surface 10A. FIG. 6 shows only a portion of the virtual region array VA3, and portions not shown also have a similar region array. The individual regions AR3 are regions separated by regular hexagonal boundaries. That is, the individual regions AR3 are regular hexagons. The outer edges of the individual regions AR3 are regular hexagons. The outer edge shape of the individual regions AR3 is similar to the outer edge shape of the first colored portions 321 included in the individual regions AR3. The centers of the individual regions AR3 coincide with the centers of the first colored portions 321. The virtual region array VA3 is a region in which a plurality of individual regions AR3 are set in a honeycomb shape.

[0057] As shown in FIG. 6, in a virtual area array VA3, a virtual area column L30 is set so that a plurality of individual areas AR3 are continuously arranged in a first direction along the back surface 10A. The first direction is, for example, the front-to-rear direction. For example, in a portion of the virtual area column L31 shown in FIG. 6, the individual areas A3, B3, and C3 are continuously arranged from one side (front side) to the other side (rear side) in the first direction. Similarly, in the virtual area columns L32 and L33, the individual areas AR3 are continuously arranged from one side to the other side in the first direction.

[0058] As shown in Fig. 6, a plurality of virtual area columns L30 are arranged in a second direction along the back surface 10A. In the third embodiment, the second direction is the left-right direction. For example, in a portion of the virtual area array VA3 shown in Fig. 6, virtual area columns L31, L32, L33, etc. are arranged consecutively in the second direction.

[0059] When the virtual region array VA3 is set as described above, each individual region AR3 is arranged with a respective first colored portion 321. The first colored portion 321 is arranged within the individual region AR3 so that the six sides (six straight line portions of the outer edge) of the first colored portion 321 are parallel to the six sides (six straight line portions of the outer edge) of the individual region AR3, respectively.

[0060] 6, among the multiple individual regions AR3, the proportion of the first colored portion 321 in one type of individual region AR3 differs from that in the other types of individual regions AR3. For example, when the first colored portion 321 arranged in individual region A3 is designated as first colored portion 321A and the first colored portion 321 arranged in individual region B3 is designated as first colored portion 321B, the proportion of the first colored portion 321B in individual region B3 is greater than the proportion of the first colored portion 321A in individual region A3.

[0061] In the third embodiment, although only a portion is shown in FIG. 6, all of the multiple individual regions AR3 (the entire virtual region array VA3) are ratio-varying regions CR3. For example, taking a portion of the virtual region array L31 as an example, the ratio of the first colored portion 321A in individual region A3 increases, followed by the ratio of the first colored portion 321B in individual region B3, and the ratio of the first colored portion 321C in individual region C3. In the virtual region arrays L32 and L33, as in the virtual region array L31, the ratio of the first colored portion 321 in the individual region AR3 increases from the front to the rear.

[0062] In the third embodiment, although only a portion is shown in Fig. 6, the center of each first colored portion 321 coincides with the center of each individual region AR3 in all of the multiple individual regions AR3 (the entire virtual region array VA3). For example, as shown in Fig. 6, the center A31 of the individual region A3 coincides with the center A32 of the first colored portion 321A. The center B31 of the individual region B3 coincides with the center B32 of the first colored portion 321B.

[0063] In the third embodiment, although only a portion is shown in FIG. 6, the outer edge of each of the first colored portions 321 in all of the multiple individual regions AR3 (the entire virtual region array VA3) is a regular hexagon. The outer edge shape of the first colored portions 321 in any type of individual region AR3 is a regular hexagon similar to the outer edge shape of the first colored portions 321 in the other types of individual regions AR3. In the third embodiment, although only a portion is shown in FIG. 6, the outer edge shape of the individual regions AR3 in all of the multiple individual regions AR3 (the entire virtual region array VA3) is a similar regular hexagon.

[0064] <Fourth embodiment> The fourth embodiment will be described below with reference to Fig. 7. The tabletop 3 of the fourth embodiment differs from that of the third embodiment in the method of setting the virtual area arrangement. Therefore, in the following, parts having the same configuration as those of the third embodiment will be assigned the same reference numerals as those of the third embodiment, and detailed description will be omitted, and differences from the third embodiment will be mainly described.

[0065] As shown in FIG. 7 , the top plate 3 has a plurality of first colored portions 421 and second colored portions 422 on the rear surface 10A of the glass plate 10. The first colored portions 421 correspond to an example of the "colored portion" of the present invention. The first colored portions 421 are regular hexagonal when viewed from the top-bottom direction. The outer edge of the first colored portions 421 is also regular hexagonal. The second colored portions 422 overlap the glass plate 10 in a configuration that partially covers the area on the rear surface 10A of the glass plate 10 other than the first colored portions 421. The second colored portions 422 differ from the first colored portions 421 and the glass plate 10 in at least one of hue, saturation, and brightness.

[0066] As shown in FIG. 7, the arrangement of the first colored portions 421 when a virtual area array VA4 is set on the rear surface 10A of the glass plate 10 will be described. The virtual area array VA4 of the fourth embodiment is obtained by rotating each individual area AR3 of the virtual area array VA3 of the third embodiment by 30° in either direction around the center. The outer edge shape of the individual area AR4 is similar to the outer edge shape of the first colored portions 421 included in that individual area AR4. The center of the individual area AR4 coincides with the center of the first colored portion 421.

[0067] As shown in FIG. 7, in a virtual area array VA4, a virtual area column L40 is set so that a plurality of individual areas AR4 are arranged in a first direction along the back surface 10A. The first direction is the front-to-rear direction. For example, in a portion of the virtual area column L41 shown in FIG. 7, individual areas A4, B4, C4, etc. are arranged at predetermined intervals (the length of one side of the individual area AR4) from one side (the front side) to the other side (the rear side) in the first direction. Similarly, in virtual area columns L42, L43, and L44, individual areas AR4 are arranged at predetermined intervals from one side to the other side in the first direction.

[0068] As shown in FIG. 7, the individual regions AR4 are partitioned so that the virtual region arrays L40 are aligned in a second direction along the back surface 10A. In the fourth embodiment, the second direction is the left-right direction. For example, in a portion of the virtual region array VA4 shown in FIG. 7, the virtual region arrays L41, L42, L43, L44, etc. are aligned continuously in the second direction. Between adjacent virtual region arrays L40, the individual regions AR4 are aligned continuously in a staggered arrangement along the front-to-rear direction. In this manner, the proportion of the first colored portions 421 in the individual regions AR aligned continuously in a staggered arrangement along the front-to-rear direction increases from the front side to the rear side.

[0069] When the virtual region array VA4 is set as described above, each individual region AR4 is arranged with a first colored portion 421. The first colored portion 421 is arranged within the individual region AR4 so that the six sides (six straight line portions of the outer edge) of the first colored portion 421 are parallel to the six sides (six straight line portions of the outer edge) of the individual region AR4, respectively.

[0070] 7, in the plurality of individual regions AR4, the proportion of the first colored portion 421 in one type of individual region AR4 differs from that in the other types of individual regions AR4. For example, when the first colored portion 421 arranged in the individual region A4 is the first colored portion 421A and the first colored portion 421 arranged in the individual region B4 is the first colored portion 421B, the proportion of the first colored portion 421B in the individual region B4 is greater than the proportion of the first colored portion 421A in the individual region A4.

[0071] In the fourth embodiment, although only a portion is shown in FIG. 7, all of the multiple individual regions AR4 (the entire virtual region array VA4) are ratio-varying regions CR4. For example, taking a portion of the virtual region array L41 as an example, the ratio of the first colored portion 421A in individual region A4 increases, followed by the ratio of the first colored portion 421B in individual region B4, and the ratio of the first colored portion 421C in individual region C4. In the virtual region arrays L42, L43, and L44, as in the virtual region array L41, the ratio of the first colored portion 421 in the individual region AR4 increases from the front side to the rear side.

[0072] In the fourth embodiment, although only a portion is shown in Fig. 7, the center of each first colored portion 421 coincides with the center of each individual region AR4 in all of the multiple individual regions AR4 (the entire virtual region array VA4). For example, as shown in Fig. 7, the center A41 of the individual region A4 coincides with the center A42 of the first colored portion 421A. The center B41 of the individual region B4 coincides with the center B42 of the first colored portion 421B.

[0073] In the fourth embodiment, although only a portion is shown in FIG. 7, the outer edge of each of the first colored portions 421 in all of the multiple individual regions AR4 (the entire virtual region array VA4) is a regular hexagon. The outer edge shape of the first colored portions 421 in any type of individual region AR4 is a regular hexagon similar to the outer edge shape of the first colored portions 421 in the other types of individual regions AR4. In the fourth embodiment, although only a portion is shown in FIG. 7, the outer edge shape of the multiple individual regions AR4 in all of the multiple individual regions AR4 (the entire virtual region array VA4) is a regular hexagon similar to the outer edge shape of the first colored portions 421 in the other types of individual regions AR4.

[0074] In the fourth embodiment, a virtual area column L50 may be set as shown in FIG. 8. The first direction (the direction in which the multiple individual areas AR4 are arranged) is a direction inclined 30° clockwise from the front-to-rear direction along the back surface 10A when viewed from above. The second direction (the direction in which the multiple virtual area columns L50 are arranged) is a direction inclined 30° clockwise from the left-to-right direction along the back surface 10A when viewed from above. One side of the first direction is the front left diagonal, and the other side of the first direction is the rear right diagonal. For example, in a part of the virtual area column L51 shown in FIG. 8, individual areas A5, B5, C5, etc. are continuously lined up from one side (front left diagonal) to the other side (rear right diagonal) in the first direction. Similarly, in virtual area columns L52 and L53, individual areas AR4 are continuously lined up from one side to the other side in the first direction. For example, in a part of the virtual region array VA4 shown in Fig. 8, virtual region columns L51, L52, L53, etc. are arranged continuously in the second direction. Even when the virtual region column L50 is set in this way, the first colored portion 421 can be arranged in the same way as when the virtual region column L40 is set.

[0075] 8, taking a portion of virtual region column L51 as an example, the proportion of the first colored portion 521A in individual region A5 increases, followed by the proportion of the first colored portion 521B in individual region B5, and the proportion of the first colored portion 521C in individual region C5. In virtual region columns L52 and L53, similar to virtual region column L51, the proportion of the first colored portion 421 in individual region AR4 increases from one side to the other in the first direction.

[0076] <Other embodiments> The present invention is not limited to the embodiments described above and in the drawings. For example, any combination of features of the above-described or following embodiments is possible within a range that does not contradict. Furthermore, any feature of the above-described or following embodiments may be omitted unless expressly stated as essential. Furthermore, the above-described embodiments may be modified as follows.

[0077] In the above description of the first to fourth embodiments, an example was shown in which screen printing was used to form the colored layer 20, but other methods may also be used. For example, the colored layer 20 may be transferred using a transfer sheet, or the colored layer 20 may be printed using an inkjet printer. Even in this case, a configuration in which the shading or brightness can be changed depending on the region can be more easily realized by reducing the number of colors to be printed.

[0078] In the above description of the first embodiment, an example was shown in which the colored layer 20 was provided on the rear surface 10A of the glass plate 10. However, as shown in Fig. 9, the colored layer 20 may be provided on the front surface (upper surface) 10B of the glass plate 10. The first colored portion 21 is visible from above the glass plate 10 without passing through the glass plate 10. In Fig. 10, the first colored portion 21 is provided on the second colored portion 22. The same applies to the second to fourth embodiments.

[0079] In the above description of the first to fourth embodiments, the second colored portion 22 covers the first colored portion 21 from the side opposite the rear surface 10A of the glass plate 10, but it may also be configured to surround the first colored portion 21 without covering it.

[0080] In the above description of the first to fourth embodiments, an example was shown in which the virtual region arrangement is set over the entire one plate surface of the glass plate 10, but it may be set over a part of the one plate surface (such as the front end portion, the rear end portion, or the outer periphery of the opening through which the burners 4 to 6 are inserted). Also, a part of the one plate surface of the glass plate 10 may be the ratio change region.

[0081] In the above-described first to fourth embodiments, the proportion of the first colored portion in the individual region gradually increases from one side to the other in the first direction, but the proportion may also be periodically increased and decreased, which allows the top plate 3 to form a more complex gradation pattern. In the above description of the first to third embodiments, the first direction is set to the front-rear direction, but it may be another direction (such as the left-right direction).

[0082] In the above description of the first to fourth embodiments, a configuration has been exemplified in which the proportion of the first colored portion in the individual region gradually increases as one moves from one side to the other in the first direction, but instead of or in addition to this configuration, a configuration may be used in which the proportion of the first colored portion in the individual region gradually increases as one moves from one side to the other in the second direction.

[0083] In the above description of the first to fourth embodiments, a configuration has been given in which the proportion of the first colored portion in the individual region increases from one side to the other in the first direction, but other configurations are also possible as long as the proportion gradually increases. For example, a configuration in which the proportion of the first colored portion in every other individual region increases sequentially from one side to the other in the first direction may be used. Specifically, in the first embodiment, a configuration in which the proportion of the first colored portion 21A in individual region A is the same as the proportion of the first colored portion 21B in individual region B, and a configuration in which the proportion of the first colored portion 21C in individual region C is the same as the proportion of the first colored portion 21D in individual region D may be used.

[0084] In the above description of the first embodiment, an example was shown in which the individual regions AR and the first colored portions 21 are normal, but other shapes are also possible. For example, the individual regions AR and the first colored portions 21 may be other quadrilateral shapes (rectangles, diamonds), or other polygonal shapes (triangles, pentagons, etc.). The individual regions AR may also be circular (perfect circles, ellipses). Note that, while the above first to fourth embodiments and the like show examples in which a large number of individual regions AR are separated without gaps, an arrangement in which gaps are provided between the individual regions is also possible. In this case, second colored portions, first colored portions, or colored portions of a color different from the first colored portions and the second colored portions may be arranged in the gaps.

[0085] It should be noted that the embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is not limited to the embodiments disclosed herein, but is intended to include all modifications within the scope indicated by the claims or the scope equivalent to the claims. [Explanation of symbols]

[0086] 1...Heating cooker 3...Top plate 10...Glass plate 10A…Back side (bottom side) 20...Colored layer 21,21A~21E,221,221A~221E,321,321A~321C,421,421A~421C,521A~521C...First colored part 22,222,322,422…Second colored section A1, A31, A41, B1, B31, B41...Center of individual areas A2,A22,A32,A42,B2,B22,B32,B42...center of first colored part A~E,A3~C3,A4~C4,A5~C5,AR,AR3,AR4...Individual area CR, CR3, CR4...Ratio change area L, L1~L5, L30~L33, L40~L44, L50~L53... Virtual area sequence VA, VA3, VA4...Virtual area array

Claims

1. A top plate for a cooking appliance having a glass plate, a plurality of first colored portions overlapping the glass plate in a configuration covering one plate surface of the glass plate; a second colored portion that overlaps the glass plate and covers an area on the one plate surface other than the first colored portion, and that is different from the glass plate and the first colored portion in at least one of hue, saturation, and brightness; Equipped with the first colored portion and the second colored portion are visible from above the glass plate with or without the glass plate therebetween; When a virtual area array is set by dividing the one plate surface into a plurality of individual areas of a predetermined shape, a virtual area row is set in the virtual area array so that the plurality of individual areas are lined up in a first direction along the one plate surface, and the plurality of individual areas are divided so that the virtual area row is lined up in a second direction along the one plate surface, each of the first colored portions is arranged in each of the individual areas, In the plurality of individual regions, a ratio of the first colored portion to the second colored portion is different between one type of the individual region and another type of the individual region, and a ratio of the first colored portion to the second colored portion is different between the one type of the individual region and the other type of the individual region, a virtual region row is set so that the plurality of individual regions are arranged consecutively in a first direction; a plurality of the virtual region rows are set to be continuously arranged in a second direction different from the first direction, In each of the virtual region rows that are continuously aligned in the second direction, in at least some of the individual regions that are continuously aligned in the first direction, the proportion of the first colored portion in the individual region increases from one side to the other side in the first direction. A baking sheet for a heating cooker.

2. The individual regions are regions bounded by rectangular or square boundaries, The virtual area arrangement is an area in which the plurality of individual areas are set in a lattice pattern. The baking sheet for the heating cooker according to claim 1.

3. In either of the individual regions of the one type and the individual regions of the other type, the center of each of the first colored portions coincides with the center of each of the individual regions. The top plate for a cooking device according to claim 1 or 2.

4. In either of the individual regions of the one type and the individual regions of the other type, the outer edge of each of the first colored portions is circular or polygonal; The outer edge shape of the first colored portion in any one of the types of individual regions is similar to the outer edge shape of the first colored portion in the other type of individual region. The top plate for the heating cooker according to any one of claims 1 to 3.

Images