JP2002340347A - Heating cooking instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safe heating cooker which is prevented from having a damage such as a burn even when a user touches a glass 9 constructing an opening/closing door 2. SOLUTION: A grill includes a hollow box-shaped substrate opening at a one end, an opening/closing door 2 free to open and close the one end opening of the substrate, and a heating apparatus provided in the substrate for heating an article to be heated and placed in the substrate. The foregoing opening/ closing door 2 is constructed with the glass 9 where an infrared ray reflection coat is applied on at least one surface thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an opening / closing door of a cooking device such as a gas grill, an electric grill, a roaster, and an oven. The present invention relates to a heating cooker that prevents a toucher from suffering an obstacle such as a burn.

[0002]

2. Description of the Related Art Heating cookers such as gas grills, electric grills, roasters, and ovens have become widespread in general processes. Such a cooking device, as shown in FIG.
A hollow box-shaped base 1 having an open end, an opening / closing door 2 capable of opening and closing one end of the base 1, and a cooking object provided inside the base 1 and placed in the base 1 (the illustrated example) , A heating device (a grill burner in the illustrated example) 4 for heating the fish 3. The opening / closing door 2 is provided so that the article 3 placed in the base 1 can be visually recognized.
It is made of glass 5. In FIG. 8, reference numeral 6 denotes a handle of the door 2. Further, in the figure, reference numeral 7 denotes a grill plate.

When the cooking device is used, heat is generated by the heating device 4 and heat energy is transmitted to the article 3 to be cooked by radiation and convection in the base 1, thereby performing cooking.

[0004]

However, in the cooking device described above, the temperature of the inside of the base 1 becomes high when the cooking device is used, and accordingly, the glass 5 constituting the opening and closing door 2 also becomes high temperature (at the surface of the glass). , For example, 180 ° C. to 220
° C). Since the door 2 is generally provided in front of the base 1 (the left side in FIG. 8), even a person other than the person who opens and closes the door 2 may touch his / her fingers. For this reason, if the glass 5 constituting the opening / closing door 2 is accidentally touched when using the heating cooker, there is a risk of burns and the like.

The present inventor has studied and found that the above-mentioned door 2
Temperature rise of the glass 5 is 0.76 mm
It has been found that the infrared rays of about 1.00 mm to about 1.00 mm are large. Therefore, if the infrared rays are prevented from being incident on the glass 5 constituting the opening / closing door 2, it is possible to suppress the temperature of the glass 5 from becoming high as described above, and it is possible to avoid the risk of causing the above-mentioned burns and the like. Conceivable.

The present invention has been made in view of the above-described circumstances, and prevents the glass from forming a high temperature by preventing the infrared rays from being incident on the glass constituting the opening and closing door. It is an object of the present invention to provide a cooking device for preventing a burn or the like.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a hollow box-shaped base having one end opened, and an opening / closing door capable of opening and closing one end of the base. And a heating device provided inside the base and heating the article placed in the base, wherein the opening and closing door reflects or blocks infrared rays and transmits visible light. It is characterized by being constituted by members.

[0008] The member may be a glass in which at least one surface is coated with a material that reflects or blocks infrared rays and transmits visible light. As described above, it is possible to use a glass mixed with a material that reflects or blocks infrared rays and transmits visible light.

Further, as the above-mentioned member, as described in claim 4, an elemental glass which is not coated or mixed with a material which reflects or blocks infrared rays and transmits visible light, and at least one surface of which has infrared rays By laminating at least two of glass, which is coated with a material that reflects or blocks visible light and transmits visible light, and glass that is mixed with a material that reflects or blocks infrared light and transmits visible light. The configured one can also be adopted.

Further, as the above-mentioned member, as described in claim 5, at least one surface is coated with a material that reflects or blocks infrared rays and transmits visible light, or glass that reflects or blocks infrared rays. It is possible to employ a glass formed by laminating glasses each containing a material that transmits visible light.

Further, as described in claim 6, based on the premise of the invention described in claim 4 or 5, the member is an air layer between at least a pair of glasses laminated with each other. Alternatively, a configuration provided with a vacuum layer may be employed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the present invention is characterized by the members constituting the opening and closing door, and the other configurations and operations are the same as those of the above-described conventional structure. Therefore, overlapping description is omitted or simplified. The description will focus on the features of the invention.

FIG. 1 schematically shows an opening / closing door according to a first embodiment of the present invention. In the present embodiment, as a member constituting an opening / closing door 2 (see FIG. 8) for opening and closing one end opening of a base 1 (see FIG. 8) constituting the heating cooker, as shown in FIG. A glass 9 coated with an infrared reflection coat 8 that reflects infrared light and transmits visible light is used on the inner surface (the right surface in FIG. 1) of the base 1.

As the infrared reflection coat 8, a metal oxide film having a high reflectance can be considered. As the coating method, for example, a sputtering method can be adopted.

By using the above-described glass 9 for the opening / closing door 2, the temperature of the glass 9 does not become higher than that of the conventional structure even when the cooking device is used. That is, when the cooking device is used, heat is supplied from the heating device 4 inside the base 1, and heat is transferred inside the base 1 by radiation or convection. Due to these radiations and convections, heat is also transmitted to the glass 9 constituting the opening / closing door 2. However, since the glass 9 is covered with the infrared reflection coat 8, infrared rays are Reflected by
As a result, the temperature of the glass 9 does not rise as much as that of the conventional glass 5 (see FIG. 8). Therefore, even when the user touches the glass 9 constituting the opening / closing door 2, the risk of injury such as burns is reduced as much as possible, and a safe cooking device can be provided.

Next, FIG. 2 schematically shows an opening / closing door according to a second embodiment of the present invention. Opening / closing door 2
As a member constituting (see FIG. 8), in the present embodiment, as shown in FIG. 2, a glass 9a mixed with an infrared reflecting member that reflects infrared light and transmits visible light is employed. As the infrared reflecting member, a trace amount of metal such as iron, nickel, and cobalt can be used. In other words, the glass 9a constituting the opening / closing door 2 is a so-called “heat absorption glass”. Other configurations and operations are the same as those in the first embodiment.

Next, FIG. 3 schematically shows a door according to a third embodiment of the present invention. Opening / closing door 2
(See FIG. 8)
And the glass 9 according to the first embodiment, an air layer 11
Are laminated in a state in which is provided. The infrared reflection coat 8 is coated on the inner surface (the right surface in FIG. 3) of the substrate 1. Note that a structure in which a vacuum layer is provided instead of the air layer 11 may be employed. Other configurations and operations are the same as those in the first and second embodiments.

Next, FIG. 4 schematically shows an opening / closing door according to a fourth embodiment of the present invention. Opening / closing door 2
(See FIG. 8)
And a glass 9a according to the second embodiment, which is laminated with a vacuum layer 12 provided between them.
A structure in which an air layer 11 (see FIG. 3) is provided instead of the vacuum layer 12 may be employed. Other configurations and operations are the same as those of the third embodiment.

Next, FIG. 5 schematically shows a door according to a fifth embodiment of the present invention. Opening / closing door 2
(See FIG. 8) A pair of ordinary glasses 10 and 10 are used as members constituting
Are sandwiched. In the case of this embodiment, in addition to the same operations and effects as those of the above-described embodiments,
Since the infrared reflection coat 8 does not peel off during cleaning, the life can be extended.

FIG. 6 schematically shows an opening / closing door according to a sixth embodiment of the present invention. Opening / closing door 2
As a member constituting (see FIG. 8), a pair of ordinary glasses 10 and 10 are used, and are laminated with an air layer 11 and an infrared reflection coat 8 interposed therebetween. In the case of the present embodiment, the same operations and effects as those of the fifth embodiment are provided. It should be noted that a vacuum layer 12 (FIG.
Reference).

Next, an experiment performed to confirm the effects of the present invention will be described. In this experiment, a grill (invention product 1) adopting a glass covered with an infrared shielding coat, which shields infrared rays and transmits visible light, was used as a member constituting the opening and closing door 2 and the second member shown in FIG. An empty grill plate is placed in each of these grills using a grill employing the glass 9 according to one embodiment (the present invention 2) and a conventional grill employing the simple glass 10 (the conventional product). The temperature was measured by measuring the temperature of a portion to be described below of the front surface of the opening / closing door 2 in each of the case where the operation was performed and the case where the grill dish filled with water was placed. The above-mentioned part is the upper right part of the front of the opening / closing door 2, the part is the right central part, and the part is the lower right part. Further, the above-mentioned portion is an upper portion in the widthwise middle portion of the front surface of the opening / closing door 2, a portion is a middle portion of the middle portion, and a portion is a lower portion of the middle portion. The above-mentioned portion is the upper left portion of the front surface of the opening / closing door 2, the portion is the left center portion, and the portion is the lower left portion. The temperature was measured using a surface thermometer 15 minutes after the grill was ignited. The results are shown in Table 1 below.
FIG. 7 shows the relationship between the infrared wavelength and the heat conductivity derived from this experiment.

[0022]

[Table 1]

As is clear from the above description of Table 1 and FIG. 7, in the opening / closing door 2 of the cooking device according to the present invention,
Due to the reflection of infrared rays, the temperature of the surface portion is lowered. For this reason, even if it touches the glass which comprises the said opening / closing door 2, it will not be injured, such as a burn,
A safe cooking device can be provided.

[0024]

Since the cooking device according to the present invention is constructed as described above, even if it touches the glass constituting the opening / closing door, it does not suffer any trouble such as burns and the like. A simple heating cooker can be provided.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view schematically showing an opening / closing door portion according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional side view schematically showing an opening / closing door portion according to a second embodiment of the present invention.

FIG. 3 is a vertical sectional side view schematically showing an opening / closing door portion according to a third embodiment of the present invention.

FIG. 4 is a vertical sectional side view schematically showing an opening / closing door portion according to a fourth embodiment of the present invention.

FIG. 5 is a vertical sectional side view schematically showing an opening / closing door portion according to a fifth embodiment of the present invention.

FIG. 6 is a vertical sectional side view schematically showing an opening / closing door portion according to a sixth embodiment of the present invention.

FIG. 7 is a diagram illustrating a relationship between a wavelength of infrared rays and a heat conductivity calculated based on an experimental result for confirming an effect of the present invention.

FIG. 8 is a vertical sectional side view schematically showing a grill.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base | substrate 2 Opening / closing door 3 Cooking object 4 Heating device 8 Infrared reflection coat 9, 9a, 10 Glass 11 Air layer 12 Vacuum layer

Claims (6)

[Claims] 1. A base in the form of a hollow box having one end opened, an opening / closing door capable of opening and closing one end of the base, and a heating device provided inside the base and for heating a food placed in the base. And a device, wherein the opening and closing door is constituted by a member that reflects or blocks infrared rays and transmits visible light. 2. The cooking device according to claim 1, wherein the member is a glass having at least one surface coated with a material that reflects or blocks infrared rays and transmits visible light. 3. The heating cooker according to claim 1, wherein the member is glass mixed with a material that reflects or blocks infrared rays and transmits visible light. 4. An elementary glass in which the member is not coated or mixed with a material that reflects or blocks infrared rays and transmits visible light, and at least one surface reflects or blocks infrared rays and transmits visible light. Characterized by being formed by laminating at least two of a glass coated with a material to be made and a glass mixed with a material that reflects or blocks infrared rays and transmits visible light. The cooking device according to claim 1, wherein 5. A method in which at least one surface of the member is coated with a glass having a material that reflects or blocks infrared rays and transmits visible light, or a material that reflects or blocks infrared rays and transmits visible light. The heating cooker according to claim 1, wherein the heating cooker is formed by laminating glass pieces. 6. The heating cooker according to claim 4, wherein an air layer or a vacuum layer is provided between at least a pair of glasses stacked on each other.