JP2003259989A - Heating structure of roaster - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roaster of easy setting by which succulent roasting and grilling can be attained. <P>SOLUTION: The roaster is constituted in such a manner that a burner 18 is arranged in the lower part, a radiation part 27 of heating media and ceramic charcoal 28 are arranged in the intermediate part, and a tray for food to be grilled is provided in the upper part respectively. Further, ceramic charcoal 28 with a gas passage hole in a vertical direction is arranged in the central part of the radiation plate 30 of a ring-shape on a plan view in which a gas passage hole is provided in the vertical direction. With the heating structure of the roaster, succulent roasting and grilling can be done by using radiant heat and far infrared rays. Also quick start of the roaster allows the users to start cooking in a short time. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roaster heating structure in which a heating source for meat is devised.

[0002]

2. Description of the Related Art Conventionally, gas, charcoal, ceramic charcoal, or a radiation plate has been put into practical use as a heating source for a roaster for grilling meat. In the case of gas alone, a roastle with appropriate slits was placed and supported above the burner, and meat was grilled on the roastle, which is one of the cooking effects.
The convective heat of the combustion gas, which is the seed, drastically deprived the meat of water, impairing its juicy taste and tenderness, and the conduction heat, which is the other cooking action, caused uneven baking. With charcoal, it takes time to ignite, the temperature rise is slow, and temperature control is not easy. In the case where ceramic charcoal is placed and supported above the burner, it takes time to heat the far-infrared-producing ceramic charcoal, which is characteristic of charcoal, and uniform heating is required, and a radiation plate is placed and supported above the burner. However, the amount of far-infrared rays that could burn the inside of the meat was so small that it was not satisfactory for juicy baking.

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a heating structure for a roaster which is juicy and easy to set.

[0004]

According to the present invention, in view of the problems that there are various heating systems based on the above-mentioned conventional technique, but each has its advantages and disadvantages, a burner is provided in the lower portion, and a radiation portion of a heating inclusion is provided in the middle portion. Ceramic charcoal was used as a roaster with cooking utensils placed on top, and a vertical gas passage hole was provided at the center of a ring-shaped radiation plate with a vertical gas passage hole. By arranging the ceramic charcoal, the meat can be cooked juicy with radiant heat and far-infrared rays, etc., or the start of cooking can be speeded up due to the quick start-up, thereby solving the above problems.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, in the smokeless roaster, an outer box 4 having an upper part opened to the cooking part 2 and a lower part opened to the exhaust part 3 is fitted and supported at a substantially central position of the table 1. An inner box 6 is attached so that a suction flow path 5 at a predetermined interval is provided inside the outer box 4, and a purifying device 3a is provided near the exhaust section 3.

By connecting cylinders 7 and 8 which are protruded inward of the outer box 4 and outward of the inner box 6 while being penetrated through one side of the outer box 4 and the inner box 6, respectively, and are overlapped with each other. ,
A substantially square tubular communication connecting portion 9 is formed by connecting and opening the outside of the outer box 4 and the inside of the inner box 6, and the communication connecting portion 9 forms a suction flow path 5 between the outer box 4 and the inner box 6. Is arranged in a partially crossed state. Both of the connecting cylinders 7 and 8 have a substantially rectangular tube shape or a gate shape, and at least the upper surface wall of the connecting cylinder 7 on the outer box 4 side is projected inward and the upper surface of the connecting cylinder 8 on the inner box 6 side. The wall is projected outward. With this configuration, the upper wall of the inner box 6 is seated on the upper wall of the outer box 4, and the outer box 4 to the inner box 6 are seated.
When attaching and detaching, the communication connecting portion 9 is separated into the connecting cylinder 7 of the outer box 4 and the connecting cylinder 8 of the inner box 6.

As shown in FIGS. 1 and 2, an upper portion of the inner box 6 is bent outward to provide a circular flat portion 10 to be mounted on a support tool of the outer box 4, and the flat portion 10 is placed above. The upper part of the drain pan 11 is placed on the peripheral part of the upper part of the upper part, and the outer part of the upper part of the upper drain pan 11 is raised upward, while the peripheral wall 13 is hung on the inner edge of the top plate 12 which covers the suction passage 5. The outer edge of the plate 12 is supported by the outer box 4, and a predetermined number and shape of intake holes 14, 14a communicating with the suction passage 5 are formed through the entire circumference of the peripheral wall 13 in contact with the rising peripheral edge of the upper drain pan 11. is doing.
In addition, there is a loss
15 (or net) is placed, the lower part of the inner box 6 constitutes a lower drain pan 16, and a gate-type burner receiver 17 is installed near the upper part of the lower drain pan 16. Although the lower drain pan 16 is formed in the lower portion of the inner box 6, the lower drain pan 16 which is detachable may be installed in the lower portion of the inner box 6.

The introduction portion 19 at the base end of the ring-shaped burner 18 is inserted into the communication connection portion 9, and a large number of inward lateral fire points 21, 21a are provided on the inner peripheral side of the ring portion 20 of the burner 18. Further, a fitting protrusion 22 that fits into the burner receiver 17 is provided in the lower portion of the ring portion 20 to house the burner 18 in the inner box 6.

Upper drain pan in upper and lower drain pans
Reference numeral 11 denotes a ring shape in a plan view, a U-shaped cross section, an outer peripheral wall 23, a bottom wall 23a, and a lower wall 23a, which are inwardly downward from a mounting portion of the upper end of the inner box 6 on the flat portion 10.
A water tank portion 24 including an inner peripheral wall 23b is provided. Then, the second bottom wall 25a and the second inner peripheral wall are formed so that a predetermined gap is formed on the lower portion of the bottom wall 23a of the upper drain pan 11 and on the inner peripheral side of the inner peripheral wall 23b.
25b are provided respectively, and a predetermined gap opened upward is formed as the heat insulating portion 26.

And, in the illustrated one, the upper drain pan
A metal ring-shaped radiant portion 27 is placed on the upper end of the second inner peripheral wall 25b of 11 and a ceramic charcoal 28 is placed at the center of the radiant portion 27, that is, the burner 18 is placed on the lower portion. Radiant part 27 and ceramic charcoal 28 which are heating inclusions in the middle part
, And the roster 15 which is a food placing tool are arranged on the upper part. In addition, the mounting, locking and supporting points of the radiation part 27 are the water tank part.
It may be the upper end of the inner peripheral wall 23b of 24, that is, the upper drain pan 11
It is enough if it is the upper end of the inner circumference. Alternatively, the ring-shaped radiator 27
The outer peripheral edge of the upper part of the upper drain pan 11 overlaps the water tank portion 24 of the upper drain pan 11 in a plan view, but is not necessarily limited to the upper drain pan 11 in the present invention.
However, when the upper drain pan 11 is not provided, the inner box 6 and the like may be supported by appropriate means.

As shown in FIG. 1, the radiating portion 27 is composed of a cylindrical portion 29 on the lower outer periphery and a radiating plate 30 having an upper mountain shape and having a central opening. The cylindrical portion 29 has a crater 21, 21a ... Supports 31, 31a, which are arranged directly above and provided outside the upper end of the cylindrical portion 29, are placed on the upper end of the inner circumference of the upper drain pan 11 (the upper end of the second inner peripheral wall 25b in the figure). Figure 3,
As shown in FIG. 4, a support plate 32 is attached to the inside of the upper end of the cylindrical portion 29, and the support plate 32 has a rising slope portion 33 on the upper side outside and a lowering slope portion on the outside downward from the upper end of the rising slope portion 33. 34
Are connected. Further, the inner periphery of the upper end of the cylindrical portion 29 is connected to the base end connecting portion.
As shown in FIG. 1, the tip end of the protective plate 36 projecting inside the cylindrical portion 29 of the radiating portion 27 is connected to the lower end of the support plate 32, which is 35. crater
21, 21a… The inner circumference side.

As shown in FIGS. 3 and 4, above the cylindrical portion 29 of the radiation portion 27, a radiation plate having a ring shape in plan view and a mountain-shaped cross section is provided.
30 is arranged, and a rising slope portion is provided such that a flow space 37 is provided between the rising slope portion 33 of the support plate 32 on the inner side of the apex.
A first radiating plate 38 inclined from the inner side to the upper outer side in a state substantially parallel to the rising inclined portion 33 is arranged above the inner side of the 33, and
From the top of the radiation plate 38 to the outside downward, the descending slope of the support plate 32.
A second radiation plate 39 that is inclined downward at the same angle as 34 is connected, and the lower tip portion 40 of the second radiation plate 39 is placed on the descending inclined portion 34 at the upper tip of the support plate 32. Although the radiation plate 30 is placed and supported on the support plate 32 of the cylindrical portion 29, it may be connected and fixed by welding or the like. The first radiation plate 38 on the inner side and the second radiation plate 39 on the outer side of the mountain-shaped radiation plate 30 have appropriate shapes and have vertical gas passage holes 42, 42a ..., 43, 43a.
Are opened respectively, and the gas passage holes of some of the first and second radiation plates 38 and 39 are formed into ellipses to improve the passage of the combustion gas.

As shown in FIGS. 1 and 2, the ceramic charcoal 28 placed on the central portion of the radiating portion 27 having a ring shape in plan view has a cylindrical portion.
A cylindrical portion 44 having a central circular passage hole 46 is formed above the center of the ring-shaped burner 18, and is preferably an upper surface portion 45 around the outer circumference of the cylindrical portion 44. The position where the gas flame of the burner 18 reaches the lower surface side of and does not flow into the passage hole 46. As shown in FIGS. 5 to 7, the upper surface portion inclined upward from the upper end of the cylindrical portion 44 toward the outer peripheral side.
45 is integrally formed, and a plurality of horizontal protrusion-shaped locking portions 47, 47a are formed on the outer periphery of the upper end of the upper surface portion 45, and the locking holes are provided in the first radiation plate 38 inside the mountain-shaped radiation plate 30. The engaging portions 47, 47a of the ceramic charcoal 28 are placed and locked on the 48, 48a, ... (See FIG. 2). As shown in FIGS. 5 to 7, the upper surface portion 45 of the ceramic charcoal 28 has an appropriate shape and has vertical gas passage holes 49, 49a.
, And the ceramic charcoal 28 is placed on the radiation plate 30 of the radiation part 27 as shown in FIG. 1, the cylindrical part 29 of the radiation part 27 is formed.
And a cylindrical portion 44 of the ceramic charcoal 28 form a wide distribution space 50, and a ventilation space is provided between the outer peripheral lower surface or the outer perimeter of the upper surface portion 45 of the ceramic charcoal 28 and the upper surface of the first radiation plate 38 of the radiation plate 30. Forming 51. Further, ribs 52, 52a ... Are radially provided on the outer periphery of the cylindrical portion 44 and the lower surface of the upper surface portion 45 of the ceramic charcoal 28 at positions reaching the locking portions 47, 47a.

Next, the operation of the heating structure of the roaster according to the present invention will be described. Ring-shaped burner 18 crater 2
Combustion gas containing flame injected inward from 1, 21a, ... gradually rises and rises in the flow space 50 between the cylindrical portion 29 of the radiant portion 27 on the inside and the cylindrical portion 44 of the ceramic charcoal 28 on the outside. , Gas passage holes 49, 49a of the ceramic charcoal 28, passing the ventilation space 51 between the outer periphery of the ceramic charcoal 28 and the first radiation plate 38 of the radiation plate 30, and the rising inclination of the support plate 32 in the radiation part 27. The distribution space 37 between the portion 33 and the first radiation plate 38 is raised, and the first radiation plate 38,
The gas passes through the gas passage holes 42, 42a ..., 43, 43a ... Of the second radiation plate 39 and rises. Due to the rise of the combustion gas, the upper surface portion 45 of the ceramic charcoal 28 and the first radiation plate 38 and the second radiation plate 39 of the radiation plate 30 are heated, and the heated ceramic charcoal 28 emits far infrared rays and generates radiant heat. Then, the first radiation plate 38 and the second radiation plate 39 of the heated radiation plate 30 generate radiant heat,
The meat above 15 is cooked with combustion gas, far infrared rays and radiant heat. Incidentally, a part of the combustion gas passes through the central passage hole 46 of the cylindrical portion 44 of the ceramic charcoal 28 and rises.

The radiation plate 30 and the ceramic charcoal 28 of the radiation unit 27 have a specific shape, so that
Heat the above meat evenly. That is, the upper surface 45 of the centrally arranged ceramic charcoal 28 and the vertical line of the first radiation plate 38 on the inner side of the chevron in the radiation plate 30 are mainly directed to the center of the roster 15, the upper portion thereof, and their peripheries. The central part of the rustle 15 is heated, and the vertical line of the second radiant plate 39 on the radiating plate 30 on the outer side of the chevron is directed to the periphery of the rustle 15 and the like, and mainly heats the peripheral part of the rustle 15. Radiant heat and far-infrared rays are basically radiated in all upward directions to perform uniform heating, and the combustion gas rises, and at the same time, the intake holes 14 of the top plate 12,
14a ... is sucked.

[0016]

In summary, the present invention has a burner 18 at the bottom.
In the middle, the radiant part 27 of heating inclusions and the ceramic charcoal 28
Is a roaster in which the cooking utensils are respectively arranged on the upper part, so that the radiant part 27 and the ceramic charcoal 28 are heated by the burner 18, and the far infrared rays and the radiant part 27 generated from the ceramic charcoal 28 are heated.
By heating the meat on the roastle 15 with the radiant heat generated from the ceramic charcoal 28 and the combustion gas, the meat is cooked with far infrared rays from the inside and with the radiant heat from the outside to cook the inside and outside in a juicy manner with good balance. You can do it. In addition, a small volume of ceramic charcoal 28, the surrounding radiation plate
The cooking start time can be shortened by heating 30 to a desired temperature in a short time, and the set temperature can be easily changed depending on the strength of the burner 18. Further, the ceramic charcoal 28 is arranged in the center. This makes it possible to heat the central portion of the rustle 15 on which meat is mainly placed with far infrared rays. Further, the vertical gas passage holes 42, 42a ..., 43, 43a.
Since the ceramic charcoal 28 having the vertical gas passage holes 49, 49a ... Is disposed in the central portion of the ring-shaped radiation plate 30 provided with the above, the radiation portion 27 and the ceramic charcoal 28 are passed by the passage of the combustion gas. The whole can be heated.

Since the ceramic charcoal 28 is provided with the upper surface portion 45 on the outer peripheral side of the upper end of the cylindrical portion 44 having the central passage hole 46,
When 18 is a strong fire, the combustion gas can be raised from the central passage hole 46 for stable combustion, and the combustion gas is guided to the upper surface portion 45 and the radiation plate 30 by the cylindrical portion 44, and the gas flame is directed to the upper surface portion 45. It is easy to reach and can efficiently heat the flat plate-shaped upper surface part 45, and the burner 18 is formed in a ring shape and at the same time.
Since the 18 craters 21, 21a ... are formed outside the cylindrical portion 44,
It is possible to prevent the gravy from sticking to the burner 18.

Locking portions 47, 47a provided on the outer peripheral side of the upper surface portion 45
Is placed in the locking holes 48, 48a of the radiant plate 30 and the ventilation space 51 is provided between the lower surface of the upper surface portion 45 and the upper surface of the radiant plate 30, so that the ceramic charcoal 28 is stably placed on the radiant plate 30. The combustion gas passes through the ventilation space 51 formed between the radiating portion 27 and the ceramic charcoal 28, which is formed by the locking portions 47, 47a. Can also be sufficiently heated.

The radiating section 27 has the outer peripheral side of the radiating plate 30 placed on the upper end of a cylindrical cylindrical section 29, and the cylindrical section 29 is attached to the crater 2 of the burner 18.
Since it is positioned almost directly above 1, 21a, the combustion gas is efficiently guided by ascending and rising in the flow space 50 formed by the cylindrical portion 44 of the ceramic charcoal 28 and the cylindrical portion 29 of the radiant portion 27. The radiant plate 30 can be heated, and the craters 21, 21a
Cylindrical part means that combustion gas injected from ... diffuses outward
It is possible to prevent it by 29 and reliably guide it to the distribution space 50, and it is possible to prevent heating of the water tank portion 24 of the upper drain pan 11.

The flat ring-shaped radiation plate 30 has a mountain-shaped cross section, the first radiation plate 38 on the inner side is inclined downward on the inner side, and the second radiation plate 39 on the outer side is inclined downward on the outer side. Since it is formed, the combustion gas is centrally distributed in a mountain shape so that the heating of both the first radiating plate 38 and the second radiating plate 39 can be equalized, or a specific location such as the outer periphery of the second radiating plate 39. Can be lowered to prevent the heat from concentrating on the Rostrul 15.
The radiant plate 38 mainly heats the central portion of the rostrtor 15, and the second radiant plate 39 on the outer side mainly heats the peripheral portion of the rostrtor 15 and can heat the rostrul 15 evenly. Since the upper surface portion 45 of the ceramic charcoal 28 placed on the first radiating plate 38 is inclined downward on the inner side, the radiating portion 27 and the ceramic charcoal 28 radiate far infrared rays and radiant heat to the entire circumference, The radiation direction is at right angles, and the central part of the rustle 15 is the first radiation plate 38, ceramic charcoal.
It is possible to heat the upper surface portion 45 of the 28, the peripheral portion of the rustle 15 by the second radiation plate 39, and heat the central portion of the rustle 15 with a large amount of far infrared rays by the ceramic charcoal 28.

Ascending slope portion above the cylindrical portion 29 of the radiating portion 27
Since 33 is formed substantially parallel to the first radiation plate 38 and a distribution space 37 is formed between the two, the combustion gas passing through the distribution space 50 and rising rises into the upper mountain-shaped distribution space 37 to form a mountain-shaped distribution space. Both the first radiation plate 38 and the second radiation plate 39 can be heated, which is a great practical effect.

[Brief description of drawings]

FIG. 1 is a sectional view of a main portion of a roaster according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a plan view of a radiation unit of FIG.

4 is a cross-sectional view of FIG.

FIG. 5 is a perspective view of ceramic charcoal.

FIG. 6 is a plan view of FIG.

7 is a cross-sectional view of FIG.

[Explanation of symbols]

18 burners 21, 21a ... Tinder 27 Radiator 28 Ceramic charcoal 29 Cylindrical part 30 Radiant plate 33 Ascending slope 37 Distribution space 38 First radiation plate 39 Second radiation plate 42, 42a ... Gas passage hole 43, 43a ... Gas passage hole 44 Cylindrical part 45 Top surface 46 Central passage hole 47, 47a ... Locking part 48, 48a… Locking hole 49, 49a ... Gas passage hole 51 ventilation space

Claims (6)

[Claims] 1. A flat surface comprising a burner in the lower part, a radiant part of heating inclusions and ceramic charcoal in the middle part, and a cooking material holder in the upper part, and a vertical gas passage hole. A heating structure for a roaster, characterized in that ceramic charcoal provided with vertical gas passage holes is arranged in the center of a radiating plate in the form of a ring. 2. The ceramic charcoal is provided with an upper surface on the outer peripheral side of the upper end of a cylindrical portion having a central passage hole, the burner is ring-shaped, and the burner crater is outside the cylindrical portion. The heating structure of the roaster according to 1. 3. The locking part provided on the outer peripheral side of the upper surface part is placed in the locking hole of the radiation plate, and a ventilation space is provided between the lower surface of the upper surface part and the upper surface of the radiation plate. Item 2. A heating structure for a roaster according to item 2. 4. The radiating part is characterized in that the outer peripheral side of the radiating plate is placed on the upper end of the cylindrical cylindrical part, and the cylindrical part is positioned substantially directly above the burner crater. Roaster heating structure. 5. The flat ring-shaped radiating plate has a mountain-shaped cross section, the first radiating plate on the inner side is inclined downward on the inner side, and the second radiant plate on the outer side is inclined downward on the outer side. The heating structure of the roaster according to claim 2, 3 or 4, wherein the upper surface of the ceramic charcoal to be placed on the first radiation plate is inclined downward on the inner side. 6. The roaster according to claim 5, wherein the rising inclined portion above the cylindrical portion of the radiating portion is in a state substantially parallel to the first radiating plate, and a circulation space is formed between the two. Heating structure.