JPH11218331A - Both-surface baking grill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize the uniformization of temperatures in a heating chamber by a method wherein a communicating port is formed so as to be opened at a middle stage position, whose upper end is lower than the upper end of forming surface of flame ports in a burner but higher than a grill, in a both-surface baking grill equipped with the communicating port, communicating the heating chamber with an exhaust passage. SOLUTION: A both-surface baking grill is provided with a heating chamber 10 for receiving cooking stuff F of fish or the like and cooking the same through heating while the heating chamber 10 is provided with a grill 20 at the middle stage thereof. Further, the heating chamber 10 is equipped with an all primary air type upper burner 30, burning fuel gas on the left-and-right side surfaces of the upper stage thereof, and a Bunsen type lower burner 40, burning the fuel gas on the left-and-right side surfaces of the lower stage thereof. The heating chamber 10 is provided with an exhaust passage 50, opened at the upper part of the back unit of the heating chamber 10, however, a communicating port 14, communicating the heating chamber 10 with the exhaust passage 50, is formed in this case at the position of the middle stage, whose upper end is lower than the upper end of a flame port forming surface of the upper burner 30 but upper than the grill 20 while the lower end of the same is upper than the lower end of the flame port forming surface of the lower burner 40, to contrive the uniformization of temperatures in the heating chamber 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided grill which simultaneously heats a food such as fish from above and below.

[0002]

2. Description of the Related Art Heretofore, there has been known a double-sided grill which simultaneously heats an object to be cooked such as fish from above and below by gas burners provided at upper and lower portions in a heating chamber. FIGS. 5 and 6 are cross-sectional views of a conventional double-sided grill viewed from the front and side, respectively. This double-sided grill comprises a heating cabinet 10 for accommodating a cooking object F such as fish for heating and cooking, and a grill 20 for placing the cooking object F in a middle stage of the heating cabinet 10;
An upper burner 30 that burns fuel gas on the left and right side surfaces of the upper stage 0 and a Bunsen-type lower burner 40 that burns fuel gas on the left and right side surfaces of the heating chamber 10 are provided. An exhaust passage 50 opened upward is provided at the back of the heating chamber 10.
A communication port 11 that connects the heating chamber 10 and the exhaust passage 50 is formed in the upper rear surface of the heating chamber 10. Further, gaps 12 and 13 for taking in outside air are formed in the bottom side of the heating chamber 10 and the portion where the lower burner 40 is attached. When cooking, the upper burner 30 and the lower burner 4
0 is burned together, and the object to be cooked F is heated from above and below. At that time, the generated exhaust gas is discharged from the communication port 11 to the outside via the exhaust passage 50.

[0003]

In such a configuration,
The hot air in the heating chamber 10 during cooking escapes from the communication port 11 to the outside together with the flow of the exhaust gas. In particular, the upper burner 30 contributes to heating of the food F by radiant heat,
Since the high-temperature exhaust gas generated in the upper burner 30 flows out from the upper communication port 11 as it is, a sufficient heating effect by the convective heat of the exhaust gas cannot be obtained. Therefore, the temperature distribution of the heating chamber 10 is hard to be uniform, which is a factor that deteriorates burning in the central part. In addition, heat energy is not effectively used, which is uneconomical.

In order to solve the above-mentioned problem, a configuration has been considered in which the communication port is formed at the lower end of the rear surface of the heating chamber to confine hot air in the heating chamber. In such a configuration, exhaust gas from the upper burner is considered. Flowed into the combustion part of the lower burner and hindered the supply of secondary air to the lower burner, making it difficult to burn. Here, it is conceivable to use an all-primary-air burner for the lower burner, but even if it is called an all-primary-air burner, only the primary air is completely removed unless the primary air is forcibly supplied using a fan or the like. And it was difficult to perform normal combustion due to lack of secondary air. The double-sided grill of the present invention solves the above-mentioned problems, and aims to make the temperature in the heating chamber uniform while maintaining good combustion.

[0005]

According to a first aspect of the present invention, there is provided a double-sided grill comprising a heating chamber for accommodating an object to be cooked and cooking by heating, and a middle section of the heating chamber. A grill on which cooking objects are placed, an all-primary pneumatic upper burner provided on the upper left and right side surfaces of the heating chamber for burning fuel gas, and a fuel gas provided on the lower left and right side surfaces of the heating chamber for burning fuel gas A lower burner, a double-sided grill provided with an exhaust passage provided in the heating cabinet and opened upward, and a communication opening communicating the heating cabinet and the exhaust passage. The gist is that it is formed at a middle position below the upper end of the flame hole forming surface of the upper burner and above the grid.

A double-sided grill according to a second aspect of the present invention for solving the above-mentioned problems is provided with a heating cabinet for storing and cooking the food to be cooked, and a cooking cabinet provided at a middle stage of the heating cabinet. A grate to be placed, an all-primary pneumatic upper burner provided on the upper left and right side surfaces of the heating chamber for burning fuel gas, and a lower burner provided on the lower left and right side surfaces of the heating chamber for burning fuel gas; In a double-sided grill having an exhaust passage provided adjacent to a heating cabinet and opening upward, and a communication opening communicating the heating cabinet and the exhaust passage, the communication opening has an upper end formed with a flame hole of the upper burner. An upper communication port formed at a middle position below the upper end of the surface and above the grill, and a lower communication port formed at a lower position below the upper end of the flame hole forming surface of the lower burner. The gist consists of

[0007] In the double-sided grill according to the first aspect of the present invention having the above configuration, the objects to be cooked are placed on a grill provided in the middle of the heating cabinet, and all primary grilles are provided on the upper left and right side surfaces of the heating cabinet. The pneumatic upper burner and the lower burners provided on the lower left and right side surfaces of the heating chamber are simultaneously burned to heat the food from above and below. At this time, the exhaust gas generated by the combustion is discharged to the outside from the communication port through the exhaust passage. By forming this communication port at the middle position where the upper end is below the upper end of the flame hole forming surface of the upper burner and above the grid, the exhaust gas generated by the upper burner temporarily accumulates in the upper part of the heating chamber and the communication port And the effect of heating the object to be cooked by the exhaust gas is increased. Further, since the exhaust gas from the upper burner is discharged above the lower burner, the influence on the combustion in the lower burner can be reduced.

[0008] In the double-sided grill according to the second aspect of the present invention having the above structure, the objects to be cooked are placed on a grill which is provided in the middle stage of the heating cabinet, and all primary grilles are provided on the upper left and right side surfaces of the heating cabinet. The pneumatic upper burner and the lower burners provided on the lower left and right side surfaces of the heating chamber are simultaneously burned to heat the food from above and below. At this time, the exhaust gas generated by the combustion is discharged to the outside from the communication port through the exhaust passage. The communication port has an upper communication port formed at a middle position where the upper end is below the upper end of the flame hole forming surface of the upper burner and above the grill, and the upper end thereof is lower than the upper end of the flame hole forming surface of the lower burner. Therefore, the exhaust gas generated in the upper burner temporarily accumulates in the upper part of the heating chamber and overflows into the communication port, thereby increasing the effect of heating the object to be cooked by the exhaust gas. Further, since the exhaust gas from the upper burner is discharged above the lower burner, the influence on the combustion in the lower burner can be reduced. On the other hand, due to the effect of the exhaust gas from the upper burner remaining in the upper part of the heating chamber, the exhaust gas generated in the lower burner becomes easier to flow to the lower communication port after heating the food, and it is easier to spread to the center part than if it simply flows upward Therefore, the temperature distribution below the grill can be made more uniform.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the structure and operation of the present invention described above, a preferred embodiment of a double-sided grill according to the present invention will be described below. 1 and 2 are cross-sectional views of a double-sided grill as a first embodiment of the present invention as viewed from the front and side, respectively. This double-sided grill has the same basic configuration as the double-sided grill shown in the conventional example (FIGS. 5 and 6), but differs mainly in the position of the communication port.
The same reference numerals are given to other overlapping portions, and description thereof will be omitted. In FIGS. 1, 3, and 5, hatching is applied to an inner edge portion of the communication port in order to make it easy to see the formation position of the communication port.

The upper burner 30 is an all-primary-air burner having a combustion surface 31 in which a number of small flame holes are penetrated through a flat plate made of porous ceramics, and sucks most of air required for combustion as primary air. The combustion surface 31 is provided slightly inclined downward with respect to the vertical plane.

The lower burner 40 is a Bunsen-type burner in which air required for combustion is supplied by primary air and secondary air. A burner hole 41 is formed in the inner edge portion along the depth of the heating chamber.
The direction in which the combustion gas is ejected from the flame holes 41 is provided slightly inclined downward with respect to the horizontal direction.

The communication port 14 has an upper end located below the upper end of the flame hole forming surface of the upper burner 30 and above the grille 20, and a lower end thereof located above the lower end of the flame hole forming surface of the lower burner 40. Formed.

With the above-described configuration, the upper burner 3 can be used during cooking.
Since the high-temperature exhaust gas generated at 0 is temporarily stored in the upper portion of the heating chamber 10 and overflows into the communication port 14, the object F to be cooked by the exhaust gas is discharged.
To increase the heating effect. Exhaust gas from the upper burner 30 flows upward from the lower burner 40 to the communication port 14.
, The influence on the combustion in the lower burner 40 can be reduced.

As described above, according to the double-sided grill of the first embodiment, since the communication port 14 is formed at the middle position, the object F is heated by the high-temperature exhaust gas generated in the upper burner 30. By increasing the effect, the temperature inside the refrigerator can be made uniform. Therefore, even in the configuration in which the upper burner 30 is provided on the side surface of the heating chamber 10, it is possible to uniformly heat the central portion to reduce uneven burning and to make the brown spots uniform. Further, the thermal energy of the exhaust gas generated by the upper burner 30 is effectively used to increase the thermal efficiency, thereby increasing the upper burner 3.
Since the required combustion amount of 0 can be reduced, energy is saved and it is economical. In addition, the effect of the exhaust gas from the upper burner 30 on the combustion in the lower burner 40 is small, so that good combustion can be achieved.

Next, a second embodiment will be described. FIG.
4 and FIG. 4 are cross-sectional views of a double-sided grill as a second embodiment of the present invention as viewed from the front and side, respectively. This double-sided grill has the same basic structure as the double-sided grill of the first embodiment (FIGS. 1 and 2), except that the communication ports are mainly formed at two places. The same reference numerals are given to other overlapping portions, and description thereof will be omitted.

The upper burner 30 is an all-primary pneumatic burner.
The combustion surface is provided slightly inclined with respect to the vertical plane.

The upper communication port 15 has an upper burner 30 at its upper end.
The lower burner 40 is formed at a middle position below the upper end of the flame forming surface and above the grill 20 and the lower end thereof is higher than the lower end of the flame forming surface of the lower burner 40. Lower communication port 1
6 is formed at a lower position where the upper end is below the upper end of the flame hole forming surface of the lower burner 40 and the lower end is near the lower end of the heating chamber 10. The exhaust gas in the heating chamber 10 passes through the upper communication port 15 and the lower communication port 16 and is discharged to the outside through the common exhaust passage 50. Therefore, upper communication port 1
A suction force is applied to the lower communication port 16 by the draft force of the exhaust gas flowing from the exhaust gas 5 to the exhaust passage 50.

According to the above-described configuration, the upper burner 3 can be used during cooking.
Since the high-temperature exhaust gas generated at 0 temporarily accumulates in the upper portion of the heating chamber 10 and overflows into the upper communication port 15, the effect of heating the object to be cooked F by the exhaust gas can be enhanced. Further, since the exhaust gas from the upper burner 30 overflows into the upper communication port 15 above the lower burner 40, the influence on the combustion in the lower burner 40 can be reduced. On the other hand, due to the effect of the exhaust gas from the upper burner 30 being trapped in the upper portion of the heating chamber 10, the high-temperature exhaust gas generated in the lower burner 40 heats the object F to be cooked and causes the lower communication port 16.
Flows to Further, the suction force is applied to the lower communication port 16 and the lower communication port 16 is formed at the center, so that the exhaust gas generated by the lower burner 40 can easily spread to the center as compared with the case where the exhaust gas simply flows upward. The temperature distribution below the net 20 can be made more uniform.

As described above, according to the double-sided grill of the second embodiment, in addition to the effects of the first embodiment, the high-temperature exhaust gas generated by the lower burner 40 can be easily spread to the central portion, and the grill The temperature distribution below 20 can be made more uniform. In addition, since the required combustion amount can be reduced by increasing the thermal efficiency by the lower burner 40, energy is saved and economical. In addition, by tilting the upper burner 30 upward, the downward influence of radiant heat is reduced, and the formation of the lower communication port 16 makes it easier for outside air to pass along the lower surface, so that the temperature rise near the lower surface is suppressed. Grilled oil can be made difficult to ignite.

The embodiments of the present invention have been described above.
The present invention is not limited to these embodiments at all, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention. For example, the lower burner 40 is not limited to the Bunsen type burner. For example, all primary air type burners may be arranged on the left and right side surfaces of the heating chamber 10 below the grill 20 as the lower burner. Also, upper burner 3
0 and the inclination of the lower burner 40 are not limited to those of the present embodiment, but can be changed as appropriate.

[0021]

As described in detail above, claim 1 of the present invention
According to the double-sided grill described above, by forming the communication port at the middle position, the heating effect on the object to be cooked by the high-temperature exhaust gas generated in the upper burner is increased, and the inside temperature is made uniform to make the grill uniform. Can be reduced. Further, by increasing the thermal efficiency by effectively using the thermal energy of the exhaust gas generated in the upper burner, it is possible to reduce the required combustion amount of the upper burner, thereby saving energy and being economical.
In addition, the effect of the exhaust gas from the upper burner on the combustion in the lower burner is small, so that good combustion can be achieved.

Further, according to the double-sided grill according to the second aspect of the present invention, the high-temperature exhaust gas generated in the lower burner can be easily spread to the central portion, and the temperature distribution below the grill can be made more uniform. it can. In addition, by increasing the thermal efficiency of the lower burner, the required amount of combustion can be reduced, thereby saving energy and being economical.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a double-sided grill as a first embodiment as viewed from the front.

FIG. 2 is a cross-sectional view of the double-sided grill as the first embodiment as viewed from the side.

FIG. 3 is a sectional view of a double-sided grill as a second embodiment as viewed from the front.

FIG. 4 is a cross-sectional view of a double-sided grill as a second embodiment as viewed from the side.

FIG. 5 is a cross-sectional view of a double-sided grill as a conventional example viewed from the front.

FIG. 6 is a cross-sectional view of a double-sided grill as a conventional example viewed from the side.

[Explanation of symbols]

10: heating chamber, 14: communication port, 30: upper burner,
40: lower burner, 50: exhaust passage.

Claims (2)

[Claims] 1. A heating cabinet for storing and cooking an object to be cooked, a grate provided in a middle stage of the heating cabinet for placing the object to be cooked, and provided on left and right side surfaces of an upper stage of the heating cabinet. An all-primary pneumatic upper burner that burns fuel gas, a lower burner that is provided on the lower left and right side surfaces of the heating chamber to burn fuel gas, an exhaust passage that is provided adjacent to the heating chamber and that opens upward, And a communication port communicating with the exhaust passage, wherein the communication port is located at a middle position where an upper end thereof is lower than an upper end of a flame hole forming surface of the upper burner and higher than the grill. A double-sided grill that is formed. 2. A heating cabinet for storing and cooking the object to be cooked, a grill provided in the middle of the heating cabinet for placing the object to be cooked, and provided on the upper left and right side surfaces of the heating cabinet. An all-primary pneumatic upper burner that burns fuel gas, a lower burner that is provided on the lower left and right side surfaces of the heating chamber to burn fuel gas, an exhaust passage that is provided adjacent to the heating chamber and that opens upward, And a communication port that communicates with the exhaust passage, wherein the communication port is located at a middle position where the upper end is below the upper end of the flame hole forming surface of the upper burner and above the grill. A double-sided grill comprising: an upper communication port formed; and a lower communication port formed at a lower position where an upper end thereof is lower than an upper end of a flame hole forming surface of the lower burner.