JP3571019B2 - Tabletop stove - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a tabletop stove used when cooking food such as grilled meat.
[0002]
[Prior art]
One of the classics of the stove is the Naniwa (charcoal stove), whose main body is made of diatomaceous earth and clay, and some localities still use it.
[0003]
On the other hand, in cities and the like, especially those used for business purposes in restaurants, etc., are heavy and difficult to handle, such as seven-wheeled ones, when transported to parlors, etc. A tabletop stove is used.
[0004]
The general thing of the tabletop stove is to put a heat source such as charcoal into a box-shaped main body with an open top made of a metal plate, and put the ingredients on a net placed on the top of the opening of the box-shaped main body. Side by side, the food is baked by the heat generated from the heat source below. The heat source that can be used for the seven wheels is limited to solid fuel charcoal, but the tabletop stove is equipped with a gas burner or electric heater as a heat source, and can use gas or electricity, which is convenient.
[0005]
[Problems to be solved by the invention]
However, in the conventional stove described above, since the box-shaped main body is formed of a metal plate, when the heat source in the main body generates heat, there is considerable heat radiation from the side and bottom surfaces of the heated main body. However, due to the heat radiation, there is a problem that the surface of the table on which the stove is placed is heated and deteriorated, and a side part of the body may be burned when touched by a part of the body.
[0006]
Therefore, an object of the present invention is to prevent a surface of a table or the like on which the table is placed from being deteriorated due to heat radiation from the bottom surface, and to prevent a burn even when a person touches the side surface. Another object of the present invention is to provide a tabletop stove in which a rise in temperature of the main body surface (side and bottom) is suppressed.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, in a tabletop stove of the present invention, the heat source is mounted at a predetermined distance between a side surface and a bottom surface of the main body, and each of the side surface and the bottom surface is in a thickness direction thereof. In the two metal plates are arranged facing each other, both the two metal plates, or at least a heat insulating material layer is formed on the facing surface of the metal plate on the side closer to the heat source, and between the facing surfaces It has a multi-layer structure in which an air layer is provided, and has a configuration in which ventilation holes connecting the air layer and the outside of the main body are formed on the side and bottom surfaces.
[0008]
In such a tabletop furnace, first, most of the heat generated from the heat source is radiated above the opening of the main body through the distance space provided between the heat source and the side and bottom surfaces of the main body. The remaining heat is transmitted to the side and bottom surfaces, and the heat transmitted to the side and bottom surfaces is also transferred to the outside by the heat insulating material layer formed on the opposite surface of the metal plate on the side close to the heat source inside the side and bottom surfaces. The movement to the upper side is suppressed, and the heat that has moved to the air layer is still radiated to the outside through the ventilation holes communicating with the outside of the main body. The heat transmitted to the plate (the metal plate away from the heat source) is very small, and the temperature rise on the side and bottom surfaces of the main body is significantly suppressed.
[0009]
At that time, if a heat insulating material layer is also formed on the outer surface of the side surface (or the lower surface of the bottom surface) of the metal plate, the heat of the air layer can be further increased by the heat insulating material layer. Since the amount transmitted to the metal plate is suppressed and moves toward the ventilation hole, the temperature rise on the main body surface is further suppressed.
[0010]
In the above configuration, if a refrigerant reservoir is provided in a distance space provided between the heat source and the side surface, diffusion of heat generated by the heat source to the surroundings by a refrigerant such as cold water injected into the refrigerant reservoir. Is further suppressed.
[0011]
Furthermore, in the above configuration, in the space between the heat source and the bottom surface, if a saucer for a cinder that can be taken in and out of the main body is provided, the surrounding air can be removed by taking the saucer in and out. Since the convection is forcibly prevented to prevent the accumulation of heat, the rise in the temperature of the bottom surface can be further suppressed.
[0012]
At that time, between the tray and the bottom surface, a closed tank of the refrigerant having a surface covering the bottom surface, or a refrigerant pipe running so as to cover the bottom surface is provided, and a main body is provided at both ends of the closed tank or the pipe. By connecting the pipes for injecting and removing the refrigerant flowing to the outside, the refrigerant can be injected from the outside of the main body to the closed tank or pipe, and the refrigerant can be circulated, so that the refrigerant can be used. By absorbing the heat radiation from the heat source to the bottom surface, it is possible to further suppress a rise in the temperature of the bottom surface.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
(1st Embodiment)
FIG. 1 is an overall perspective view of a stove according to a first embodiment of the present invention, and FIG. 2 is an exploded perspective view. 3 is a cross-sectional view taken along line AA of FIG. 1, FIG. 4 is a cross-sectional view taken along line BB, and FIG. 5 is a cross-sectional view of the main body described below.
[0015]
The stove of this embodiment uses the heat of combustion of charcoal as a heat source. As shown in FIGS. A net 20 for arranging and baking foods is placed on top of it. The fuel box 10 is a rectangular box, and each of the opposing edges of the box 10 has a portion 11 extending outward, and is suspended over the pair of improved edges of the main body 1. It is detachable with respect to. First, the main body 1 will be described, as its detailed structure will be described later.
[0016]
Each of the four side surfaces 2 and the bottom surface 6 constituting the main body 1 has a multilayer structure as described below. First, as shown in FIG. 3 and FIG. 4, the side surface 2, as shown in FIG. 3 and FIG. The members 3 face each other, are spaced apart from each other, and are arranged to face each other in such a manner that the distance space becomes an air layer 5. Then, as shown in FIG. 5, the air layers 5 on the four side surfaces 2 are connected over the whole of the four side surfaces 2 without being separated by walls at boundaries between adjacent ones of the side surfaces 2. I have. On the side of the side surface 2 facing the outside of the stainless steel plate 4 constituting the multilayer wall, a ventilation hole 4h communicating with the internal air layer 5 is provided.
[0017]
With such a configuration, the heat generated by burning the charcoal C in the fuel box 10 is mainly radiated upward through the space provided between the fuel box 10 and the side surface 2 as described above. The remaining heat transmitted to the air layer 5 is suppressed by the heat insulating material 3 on the side close to the heat source inside the side surface 2, and the heat is transferred upward to the air layer 5 side. Is transmitted to the stainless steel plate 4 by the heat insulating material 3 provided on the outer stainless steel plate 4, and the heat is radiated to the outside through the ventilation hole 4 h communicating with the outside of the main body 1. The heat transmitted to the outer stainless steel plate 4 becomes extremely small, and the temperature rise of the outer stainless steel plate 4 is remarkably suppressed.
[0018]
On the other hand, as with the side surface 2, the bottom surface 6 is also provided with two stainless steel plates 7 arranged vertically opposed to each other, a plate-shaped heat insulating material 8 formed by applying waterproofing processing to asbestos, and a facing of the stainless steel plates 7. A multi-layer structure is formed with the air layer 9 between the stainless steel plates 7 on the lower side of the figure (the side facing the mounting surface of the table or the like). A communicating vent 7h is provided to suppress a rise in temperature of the stainless steel plate 7 below the same on the same principle as in the case of the side surface 2 described above. However, in the case of the bottom surface 6, as shown in FIGS. 3 and 4, the heat insulating material 8 is provided only on the upper stainless steel plate 7 and is not provided on the lower stainless steel plate 7. For this reason, the heat insulating material 8 may be provided on both the upper and lower stainless steel plates 7 that are opposed to each other, similarly to the case of the side surface 2. By doing so, the temperature rise of the bottom surface 6 can be further suppressed.
[0019]
In this embodiment, as shown in FIGS. 3 and 4, a vent hole 7 h ′ is also provided on the bottom surface 6 at the boundary between the side surface 2 where the side surface 2 is erected on the periphery of the bottom surface 6. To form a ventilation path connecting the ventilation hole 7h on the lower side of the bottom surface 6 and the ventilation hole 4h on the side of the side surface 2. A flow path is formed between the air layers 5 and 9 so that the heat of the air layers 5 and 9 is dissipated to the outside of the main body 1 so as to further suppress the temperature rise of the bottom surface 6 and the side surface 2. The above is the configuration of the main body 1. Next, the fuel box 10 will be described in detail.
[0020]
In the present invention, a space of a predetermined distance is provided between the heat source and the side surface and the bottom surface of the main body, so that the heat of the heat source is not directly transmitted to the side surface and the bottom surface, and the temperature rise of the side surface and the bottom surface is suppressed. Therefore, as shown in FIGS. 3 and 4, the height of the fuel box 10 of this embodiment is set to be slightly larger than half the height of the main body 1. Is suspended so as to straddle each of the pair of improving edges of the main body 1 so that a space as shown in the figure is created between the main body 1 and the bottom surface 6.
[0021]
In addition, as shown in FIGS. 2 and 3, the central rectangular charcoal charging section 12 divided into three sections is separated from each of both side faces 2 by a predetermined distance, and is separated from the side face 2. In both spaces of the above-mentioned portion, a refrigerant reservoir 13 continuously provided by being partitioned by a wall with respect to the charging portion 12 is located.
[0022]
As shown in FIGS. 2 and 4, the charging portion 12 for charcoal includes a central flat portion 12a and inclined surfaces 12b on both sides thereof. The central flat portion 12a is a charcoal mounting surface 12a. The mounting surface 12a is provided with a punch hole 12h for ventilation. The inclined surfaces 12b on both sides of the charcoal mounting surface 12a serve as reflection surfaces for efficiently transmitting the combustion heat of the charcoal C to the center.
[0023]
Water W is injected into the refrigerant reservoir 13 and not only separates the charcoal charging portion 12 from the side surface 2 but also the heat of combustion of the charcoal C due to the water W of the refrigerant reservoir 13 located in the space. Heat is further suppressed. The above is the configuration and operation of the fuel box 10.
[0024]
In this embodiment, as shown in FIG. 2 to FIG. 4, a cass tray 14 of a cinder which can be taken in and out of the main body 1 is provided in a space between the fuel box 10 and the bottom surface 6. . The tray 14 not only receives cinders generated when baking ingredients above it, but also has a handle 14a for drawing out on one side thereof, and the tray 14 is moved into and out of the main body 1 by the handle 14a. By doing so, the air between the fuel box 10 and the bottom surface 6 is forcibly convected to diffuse heat, thereby also suppressing the temperature rise of the main body 1.
[0025]
(Second embodiment)
In the second embodiment, the following configuration is employed to further suppress the temperature rise of the bottom surface 6 in the first embodiment. That is, the sealed tank 15 in which the refrigerant is injected is disposed in a region (indicated by reference numeral 15 (16)) indicated by the dashed line in FIG. 6 between the bottom surface 6 and the tray 14. FIG. 7 shows the refrigerant tank 15 extracted by a solid line.
[0026]
As shown in FIG. 7, the refrigerant tank 15 is formed by combining stainless steel plates into a thin plate shape, and an injection pipe 15a and a take-out pipe 15b which are connected to the inside of the tank 15 are provided upright at both ends of a diagonal line on the surface of the thin plate. It is. Refrigerant such as cold water is injected from the injection pipe 15a, taken out with compressed air and extruded from the pipe 15b, so that the refrigerant in the tank 15 can be replaced. In addition, if another pipe (not shown) with a pump interposed is connected to the ends of both pipes 15a and 15b outside the main body 1 to form a closed flow path, the refrigerant in the tank 15 can be cooled. It can also be circulated.
[0027]
With the above configuration, in the second embodiment, by injecting or circulating a refrigerant into the closed tank 15, the refrigerant absorbs heat radiated from the upper heat source to the bottom surface 6 by absorbing the refrigerant. , The temperature rise of the bottom surface 6 can be further suppressed.
[0028]
8 replaces the refrigerant tank 15 of FIG. 7 with a refrigerant pipe 16 having an outer diameter substantially equal to the height (thickness) of the refrigerant tank 15 as shown in FIG. It has been arranged. At both ends of the refrigerant pipe 16, as in the case of the refrigerant tank 15, an injection pipe 16 a for injecting the refrigerant into the refrigerant pipe 16 from outside the main body 1 and an extraction pipe 16 b for extracting the injected refrigerant are provided upright. This allows the refrigerant inside the refrigerant pipe 16 to be replaced and the refrigerant to circulate inside the refrigerant pipe 16.
[0029]
Thus, the refrigerant pipe 16 can also inject or circulate the refrigerant into the refrigerant pipe 16 to absorb the heat radiated from the upper heat source to the bottom surface 6 and suppress the temperature rise of the bottom surface 6.
[0030]
In the furnaces of the above embodiments, the shape of the main body 1 is a rectangular (rectangular cross-section) box. However, the shape is not limited to a rectangle, and the cross-section may be a pentagon or a hexagon in consideration of design. It can be applied to a polygonal cylinder or a cylinder.
[0031]
In both of the above embodiments, the combustion heat of the charcoal C is used as a heat source. However, a gas burner or an electric heat source is used as a heat source in the charcoal charging portion 12 (portion formed by the mounting surface 12a and the reflection surface 12b) of the fuel box 10. It is possible to use gas and electricity by mounting a vessel.
[0032]
【The invention's effect】
Since the present invention is configured as described above, the temperature rise on the side and bottom surfaces of the main body of the kiln is remarkably suppressed as compared with the conventional table kiln, and the surface of the table or the like on which the kiln is placed is deteriorated by heat. There is an effect that there is no danger that a part of the human body touches the main body and burns.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a first embodiment.
FIG. 2 is an exploded perspective view of the embodiment.
FIG. 3 is a longitudinal sectional view taken along line AA in FIG. 1;
FIG. 4 is a longitudinal sectional view taken along line BB of FIG. 1;
FIG. 5 is a cross-sectional view of the main body.
FIG. 6 is a longitudinal sectional view of the second embodiment.
FIG. 7 shows a refrigerant tank of the second embodiment taken out.
FIG. 8 shows a refrigerant pipe of the second embodiment taken out.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Side surface 3, 8 Insulation material 4, 7 Stainless steel plate 4h, 7h, 7h 'Vent hole 5, 9 Air layer 6 Bottom surface 10 Fuel box 12 Charcoal charging portion 13 Refrigerant reservoir 14 Receiving tray 15 Refrigerant tank 16 Refrigerant pipe 15a 16a Refrigerant injection pipes 15b, 16b Refrigerant extraction pipe 20 Net C Charcoal W Water

Claims (2)

A heat source is mounted in the cylindrical main body 1 having an upper surface opening, and the food materials are arranged on a net 20 placed on the upper surface of the opening of the main body 1, and the food materials are baked by the heat generated by the heat source. At the tabletop stove,
Box 10 for placing the heat source therein, the body 1 is detachably mounted at a predetermined distance between the side surface 2 and the bottom surface 6 of the body 1, the side surface of the main body 1 2 and a bottom surface 6, respectively, the two metal plates in the thickness direction is opposed both the two metal plates, or heat insulating material layer to the facing surface of at least the side of the metal plate close to the heat source 3 and 8 are formed, and air layers 5 and 9 are provided between the opposing surfaces. The main body 1 has a multilayer structure including the heat insulating material layers 3 and 8 and the air layers 5 and 9. Vent holes 4h, 7h connecting the air layers 5, 9 to the outside of the main body 1 are formed on the side surface 2 and the bottom surface 6 of the main body 1, and the box 10 includes the heat source and the main body. the refrigerant reservoir 13 located at a distance space between the first side 2, its Tabletop stove is characterized in that formed integrally with the box 10. Between the heat source and the bottom surface 6 of the main body 1, there is provided a closed tank 15 for the refrigerant having a surface covering the bottom surface 6, or a pipe 16 for the refrigerant running so as to cover the bottom surface 6. 2. The tabletop furnace according to claim 1 , wherein pipes for injecting and removing the refrigerant communicating with the outside of the main body 1 are connected to both ends of the tank 15 or the pipe 16. 3.

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