JP2022128837A - heating cooker - Google Patents

Abstract

To provide a heating cooker having a top plate provided with an image object in which blurring of characters and patterns is suppressed.SOLUTION: In a heating cooker with a top plate covering the top surface, the top plate includes a glass plate, and a colored layer provided on the underside of the glass plate, and having an image object constituted by slots penetrating from the bottom to the top of the colored layer.SELECTED DRAWING: Figure 1A

Description

TECHNICAL FIELD The present invention relates to a cooking appliance, and more particularly to a cooking appliance with a top plate having an image object.

Induction cookers are generally recognized as safer than conventional gas cookers that use fire. However, when a combustible object other than cooking utensils such as a pot or an object susceptible to magnetism is placed on the top plate, unexpected operations may occur. Therefore, instruction manuals and the like describe the correct usage of the induction heating cooker and precautions. Further, the induction heating cooker is provided with a cautionary note for safe use, and usually the cautionary note is provided on the surface of the top plate by means of a seal, a baking plate, or the like.

For example, there is disclosed a heating cooker in which a warning display is provided in the vicinity of one of the rear left and right corners of the surface of the top plate (see Patent Document 1, for example). However, the need for a special plate for the caution display characters on the top plate increases the cost, and because of the surface printing, there is a possibility that it will come off due to the rubbing of the pot or frying pan. In addition, since the warning display characters are convex, there is a possibility that the characters may become unreadable due to dirt adhering to them.

Further, a heat-resistant glass is disclosed in which a first layer and a second layer covering the first layer are provided on the back surface of the top plate, and a visible design layer is formed by the first layer and the second layer. (See Patent Document 2, for example).

Japanese Patent Application Laid-Open No. 2007-162968 Japanese Patent Application Laid-Open No. 2020-97505

In the above-mentioned heat-resistant glass, patterns and characters are formed on the first layer with inorganic pigments, etc., and the patterns and characters are baked after being covered with the second layer. There is a possibility that it will bleed at the boundary between the two, and there is a possibility that the yield will decrease.

SUMMARY OF THE INVENTION An object of the present invention is to provide a heating cooker having a top plate on which an image object is provided in which blurring of characters and patterns is suppressed.

A heating cooker according to the present invention is a heating cooker provided with a top plate covering the upper surface, the top plate comprising a glass plate and a colored layer provided on the lower surface of the glass plate, the colored layer a colored layer having image objects constituted by slots penetrating from the bottom surface to the top surface.

According to the heating cooker according to the present invention, the characters and patterns of the image object provided on the top plate are suppressed from bleeding, and the image object can be well recognized.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic perspective view which shows the outline|summary of the heat cooker which concerns on Embodiment 1. FIG. FIG. 1B is a schematic cross-sectional view showing the cross-sectional structure of the top plate of the heating cooker of FIG. 1A as seen from the AA direction. FIG. 1B is an exploded perspective view showing each member provided on the lower surface of the top plate of the heating cooker of FIG. 1A; FIG. 9 is a schematic perspective view showing an underframe provided on the lower surface of the top plate of the cooking device according to Embodiment 2; FIG. 11 is a plan view of the top plate of the cooking device according to Embodiment 3, as viewed from above; In the step of forming an image object by irradiating a colored layer with a laser beam to form a slot in the manufacturing method of the heating cooker according to Embodiment 4, the laser beam is irradiated from the surface of the glass plate provided with the colored layer. and FIG. 11 is a schematic cross-sectional view showing how slots are formed by pressing. In the step of irradiating the colored layer with a laser beam to form a slot to form an image object in another example of the manufacturing method of the cooking device according to the fourth embodiment, the surface of the glass plate opposite to the colored layer is provided. FIG. 10 is a schematic cross-sectional view showing how a slot is formed by irradiating a laser beam from a side surface;

A heating cooker according to a first aspect is a heating cooker provided with a top plate covering an upper surface, wherein the top plate is a glass plate and a colored layer provided on the lower surface of the glass plate, the colored layer being a colored layer. a colored layer having image objects constituted by slots penetrating from the bottom surface to the top surface of the .

In the cooking device according to the second aspect, in the above first aspect, an underframe facing the slot may be arranged below the area of the image object provided on the colored layer.

In the heating cooker according to the third aspect, in the first aspect, a gap having a thickness of 1 mm or more may be provided below the area of the image object provided on the colored layer.

A heating cooker according to a fourth aspect, in the first aspect, further includes a heating unit having a coil disposed below the top plate and a mica layer disposed on the upper surface of the coil, the colored layer The area of the image object provided in may be arranged in an area avoiding the upper side of the mica layer.

In the heating cooker according to the fifth aspect, in the first aspect, a single component may be arranged below the area of the image object provided on the colored layer.

In the heating cooker according to a sixth aspect, in the first aspect, the colored layer may have at least a colored layer having a colored paint and an abrasion resistant layer.

A method for manufacturing a cooking device according to a seventh aspect includes a step of providing a colored layer on a glass plate, irradiating the colored layer with a laser beam to form a slot penetrating from the bottom surface to the top surface, and and configuring the image object.

A method for manufacturing a heating cooker according to an eighth aspect is the method according to the seventh aspect, wherein in the step of configuring the image object, the laser beam is irradiated from the surface of the glass plate opposite to the surface on which the colored layer is provided. slots may be formed.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A heating cooker according to an embodiment and a method for manufacturing the same will be described below with reference to the accompanying drawings. In addition, the same code|symbol is attached|subjected about the substantially same member in drawing.

(Embodiment 1)
<heat cooker>
FIG. 1A is a schematic perspective view showing an outline of cooking device 20 according to Embodiment 1. FIG. FIG. 1B is a schematic cross-sectional view showing the cross-sectional structure of the top plate 10 of the heating cooker 20 of FIG. 1A as seen from the AA direction. FIG. 2 is an exploded perspective view showing each member provided on the lower surface of the top plate 10 of the heating cooker 20 of FIG. 1A.
Heating cooker 20 according to Embodiment 1 includes top plate 10 that covers the upper surface. The top plate 10 includes a glass plate 8 and colored layers 1 and 2 provided on the lower surface of the glass plate 8 . The colored layers 1, 2 have image objects 6 constituted by slots 4 running through from the bottom to the top.
In the top plate 10 of this heating cooker 20, the image object 6 is formed by the slot 4 obtained by removing all layers from the bottom to the top of the colored layers 1 and 2 provided on the bottom surface. As a result, blurring of the image object 6 can be suppressed, and an easily visible image object can be constructed. In addition, since the image object is composed of the slots 4 and the like, the number of processing steps is small and the cost can be suppressed.

Below, each member which comprises this cooking-by-heating machine 20 is explained.

<Top plate>
The top plate 10 comprises a glass plate 8 and colored layers 1 and 2 provided on its lower surface. The glass plate 8 is transparent so that the colored layers 1 and 2 on the bottom can be seen from above. Crystallized glass is used for the glass plate 8 so as to withstand heating. The colored layers 1 and 2 include, for example, an underlying layer, a tint layer, a tint adjusting layer, a light shielding layer, and an abrasion resistant layer. That is, the colored layers 1 and 2 may be one layer, or two or more layers. Moreover, the colors of the colored layers 1 and 2 are not particularly limited. The colored layers 1 and 2 may be organic paints, inorganic pigments, or composite coatings thereof.
A light shielding layer may be provided to shield light from the outside. In addition, a wear-resistant layer may be provided on the surface of the colored layer in order to suppress wear with members that come into contact with the lower surface of the top plate.

The colored layers 1 and 2 also have an image object 6 constituted by a slot 4 penetrating from the bottom surface to the top surface. The slot 4 may be formed by removing all the colored layers 1 and 2. For example, the slot 4 can be formed by removing the colored layers 1 and 2 with a laser beam so as to penetrate from the bottom surface to the top surface (for example, as shown in FIG. 5, see Fig. 6). The image object 6 is composed of characters, symbols, illustrations, etc., which are cut out in the slot 4 . As the image object 6, for example, restrictions on cooking utensils such as pots and frying pans that can be used in the heating cooker, restrictions on items other than cooking utensils such as combustible materials and objects susceptible to magnetism, and restrictions on the heating cooker It is a cautionary note about the handling of itself. Note that the image object is not limited to the above note, and may be characters such as "IH" representing induction heating, a company name, a logo, or the like. In the image object 6, as shown in FIGS. 1A and 2, since the colored layers 1 and 2 can be recognized through the transparent glass plate 8, the colors of the colored layers 1 and 2 on the lower surface around the slot 4 and the colors in the slot Contrast occurs between dark areas. It is sufficient if the image object can be recognized by this contrast.

<Heating part>
When the heating cooker is an induction heating cooker, the heating unit 14 is a coil for induction heating, and the portion facing the glass plate 8 is provided with a mica layer 15 as a heat insulating material or an insulating material. ing. The coil has a size that matches the diameter of a pot, frying pan, or the like placed on the top plate. For example, as shown in FIG. 2, three heating units 14 may be provided. Also, the coils may have different diameters. Specifically, in the example of FIG. 2, the inner coil is the smallest, the left coil is of medium size, and the right coil is the largest. Also, a grill or the like for heating by a heater or the like may be provided in the lower portion.
Note that the heating cooker of the present disclosure is not limited to the induction heating cooker. For example, in the case of heating by a heater or the like or a gas cooker, a heating portion is provided on the upper surface of the glass plate.

<Control section>
When the heating cooker is an induction heating cooker, it has a control section 16 for controlling a heating section 14 such as a coil.

<Body case>
The heating unit 14, the control unit 16, and the like are housed in the body case 12. As shown in FIG.
In addition to the above, the heating cooker may include, for example, a power supply unit and an operation unit such as an operation panel. In addition, portions for cooling air intake and exhaust such as a power supply unit and a control unit may be provided.

(Embodiment 2)
FIG. 3 is a schematic perspective view showing the underframe 18 provided on the lower surface of the top plate 10 of the cooking device 20a according to Embodiment 2. As shown in FIG.
In the heating cooker according to Embodiment 2, an underframe 18 facing the slot is arranged below the area of the image object 6 provided on the colored layers 1 and 2 . The underframe 18 is attached to the upper part of the main body case and is a member that supports the top plate. In addition, the underframe 18 is not arranged between the heating area of the top plate on which the pot or the like is placed and the heating section below it so as not to interfere with the induction heating. The underframe 18 may be provided at a location facing the slots forming the image object 6 . In FIG. 3, the underframe 18 is provided only on the left and right ends and on the back side, avoiding the heating area, rather than on the entire lower portion of the glass plate 8 . By arranging the underframe 18, the depth from the slot of the glass plate 8 can be set to a constant depth, and the color of the colored layers 1 and 2 on the lower surface around the slot 4 and the dark part in the slot can be adjusted. Since the contrast between the images can be made constant, it becomes easier to visually recognize the image object. The distance from the colored layers 1 and 2 to the underframe 18 may be, for example, 1 mm or more. Providing a depth of 1 mm or more can result in dark areas within the slot. This makes the image object easier to see.

In addition, by using a member with high brightness for the underframe, even if the colored layer is black, etc., the black of the colored layer that can be recognized through the transparent glass plate and the high brightness part of the underframe in the slot , the contrast between light and dark can be obtained, and the visibility of image objects can be improved.

Alternatively, even if a member with high brightness is used for the underframe, the inside of the slot can be visually recognized as black by providing a gap of, for example, 1 mm or more between the colored layers 1 and 2 and the underframe 18 . Therefore, even if the colored layer is silver or white, it is possible to obtain a bright and dark contrast with the underframe in the slot, thereby improving the visibility of the image object.

Alternatively, when a member with low brightness is used for the underframe or when a member with low brightness is applied or attached to the underframe, even if the colored layers 1 and 2 are silver or white, the transparent glass plate A light-dark contrast is obtained between the silver or white color of the colored layers 1, 2 that can be recognized through and the low-lightness part of the underframe in the slot, and the visibility of the image object can be improved.

(Embodiment 3)
FIG. 4 is a plan view of the top plate 10 of the cooker 20b according to Embodiment 3, as viewed from above.
The image object 6 provided on the top plate 10 of the cooker 20b according to Embodiment 3 is arranged in a region avoiding the arrangement position 22 of the mica layer. When the image object is placed on the mica layer, the mottled pattern of the mica layer can be seen through, resulting in poor visibility of the image object. Therefore, by arranging the image object while avoiding the arrangement position of the mica layer as described above, it is possible to avoid deterioration of the visibility of the image object.
Note that, for example, a single component may be arranged below the image object. This allows the background of the image object to be of a single color, improving the visibility of the image object.

(Embodiment 4)
<Manufacturing method of heating cooker>
FIG. 5 shows a step of irradiating the colored layers 1 and 2 with the laser beam 26 to form the slot 4 to form the image object 6 in the manufacturing method of the heating cooker according to the fourth embodiment. 4 is a schematic cross-sectional view showing how a slot 4 is formed by irradiating a laser beam 26 from a surface on which layers 1 and 2 are provided; FIG. FIG. 6 shows the surface of the glass plate 8 on which the colored layers 1 and 2 are provided and the step of irradiating the colored layers 1 and 2 of another example with the laser beam 26 to form the slot 4 and form the image object 6 . FIG. 10 is a schematic cross-sectional view showing how a slot 4 is formed by irradiating a laser beam 26 from the opposite surface.

A method of manufacturing a cooking device according to Embodiment 4 includes steps of providing colored layers 1 and 2 on a glass plate 8 and forming an image object 6 with a slot 4 . The slot 4 is formed by irradiating the colored layers 1 and 2 with a laser beam and removing the colored layers 1 and 2 from the bottom surface to the top surface.
In the step of providing the colored layers 1 and 2, the colored layers 1 and 2 can be formed by laminating ordinary color layers and the like. When a plurality of layers are provided as the colored layers 1 and 2, they may be laminated in order in the same manner.
The laser beam 26 may be applied from the side on which the colored layers 1 and 2 are provided as shown in FIG. 5, or may be applied from the glass plate 8 side as shown in FIG. In this case, the laser beam is normally emitted from vertically upward to vertically downward in order to avoid falling of machining dust and machining waste. 5, a laser beam 26 is irradiated from the side of the colored layers 1 and 2, and if the colored layers 1 and 2 are below the glass plate 8 in the previous step, as shown in FIG. can be irradiated with a laser beam from the glass plate 8 side.

As shown in FIG. 6, by irradiating the laser beam 26 from the side of the glass plate 8, the processing waste removed from the bottom surface to the top surface of the colored layers 1 and 2 falls vertically downward due to gravity and is eliminated. Therefore, processing waste is less likely to be accumulated in the slot 4, and the formation of the slot 4 by laser processing can proceed satisfactorily.

It should be noted that the present disclosure includes appropriate combinations of any of the various embodiments and / or examples described above, and each embodiment and / or The effects of the embodiment can be obtained.

According to the heating cooker according to the present invention, in the top plate, the image object is configured by the slot obtained by removing all layers from the bottom surface to the top surface of the colored layer provided on the bottom surface. As a result, blurring of the image object can be suppressed, and an easily visible image object can be formed.

1 First layer 2 Second layer 4 Slot 6 Image object 8 Glass plate 10 Top plate 12 Main body case 14 Heating unit 15 Mica layer 16 Control unit 18 Underframes 20, 20a, 20b Heating cooker 22 Position of mica layer

Claims (8)

A heating cooker having a top plate covering the top surface,
The top plate is
a glass plate and
a colored layer provided on the lower surface of the glass plate, the colored layer having an image object constituted by a slot penetrating from the bottom surface to the top surface of the colored layer;
Equipped with a heating cooker. 2. The heating cooker according to claim 1, wherein an underframe facing the slot is arranged below the area of the image object provided on the colored layer. 2. The heating cooker according to claim 1, wherein a space having a thickness of 1 mm or more is provided below the area of the image object provided in the colored layer. further comprising a heating unit having a coil disposed below the top plate and a mica layer disposed on the upper surface of the coil;
2. The heating cooker according to claim 1, wherein the area of the image object provided on the colored layer is arranged in an area avoiding the upper side of the mica layer. 2. The heating cooker according to claim 1, wherein a single component is arranged below the area of the image object provided on the colored layer. The heating cooker according to any one of claims 1 to 5, wherein the colored layer has at least a colored layer containing colored paint and an abrasion-resistant layer. providing a colored layer on the glass plate;
forming a slot through the colored layer from the bottom to the top with a laser, and forming an image object with the slot;
A method for manufacturing a heating cooker, comprising: 8. The method of manufacturing a heating cooker according to claim 7, wherein in the step of forming the image object, the slot is formed by irradiating a laser from a surface of the glass plate opposite to the surface on which the colored layer is provided. .

Images