JP3061544U - Combustion equipment - Google Patents

Abstract

(57) [Summary] [Problem] To provide a combustion device that prevents the surface of the table from being damaged or discolored even when placed on the table. An external container (2) having a reflector (7) and a bottom plate (5) located above the reflector (7) and having an open upper part;
A closed bottom 16 arranged at a gap in the outer container 2
And an inner container 3 having an open top,
A plurality of ventilation holes 4 are formed in the bottom plate 5, and a gap 6 communicating with the outside is provided between the reflection plate 7 and the bottom plate 5 of the outer container 2. A rostor 13 is disposed on the top 12.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a combustion device. More specifically, the present invention relates to a combustion device for inserting a fuel such as charcoal into the inside thereof and burning it, and generally heating an object to be treated such as foodstuffs placed on an upper surface.

[0002]

[Prior art]

 FIG. 3 shows a conventional barbecue stove (hereinafter simply referred to as a stove) 51 which is a kind of a combustion device. The main container 52 of the stove 51 has a sealed bottom 52a for completely closing the bottom, and the upper end is open.

A step 53 is formed below an intermediate portion inside the main body container 52, and a partition plate 54 is placed on the step 53. A large number of ventilation holes 55 are perforated in the partition plate 54, and a lantern (hereinafter, referred to as a rostor) 56 is placed on the upper surface of the partition plate 54 with a gap. At the center of the partition plate 54, a heat-resistant frame 57 formed in a frame shape from a ceramic plate or the like is placed so as to surround the above-mentioned roaster 56. The fuel is inserted into the heat-resistant frame 57 and burned.

An air supply opening 58 for combustion is formed below the step 53 in the main body container 52 so as to be openable and closable. The air that has flowed into the space 59 below the partition plate 54 from the air supply port 58 passes through the vent hole 55 and the rostral 56 and reaches the fuel.

A mounting frame 60 extending between the upper edge of the main body container 52 and the upper edge of the heat-resistant frame 57 is fitted thereon, a net (not shown) is mounted thereon, and an object to be heated is mounted thereon. You. The hot air in the space 61 between the main body container 52 and the heat-resistant frame 57 is made to escape to the outside through many ventilation slits 62 formed in the main body container 52.

[0006]

[Problems to be solved by the invention]

 In such a stove 51, hot air generated by fuel combustion, small pieces of burning fuel, unburned ash, and the like pass through the rostrles 56 and the ventilation holes 55 of the partition plate 54, and enter the sealed bottom 52 a of the main container 52. Reach. As a result, since the sealing bottom 52a is heated to a high temperature, the surface of a table or the like on which the stove 51 is placed may be damaged, deteriorated, or discolored. To prevent this, it is conceivable to use a tall leg member such as the so-called Gotoku, but it becomes unstable and difficult to handle.

[0007] The present invention has been made to solve such a problem, and it is an object of the present invention to provide a combustion apparatus capable of preventing a surface such as a table to be placed from being damaged by suppressing a remarkable temperature rise at a bottom thereof. It is an object.

[0008]

[Means for Solving the Problems]

 The combustion device of the present invention includes a shield plate, an outer container having a perforated bottom located above the shield plate, and having an open upper part, and a closed bottom disposed with a gap in the outer container. And an inner container having an open top, and a gap is provided between the shield plate of the outer container and the perforated bottom to communicate with the outside.

[0009] Thus, small pieces of fuel, ash, and hot air burning in the inner container are trapped in the inner container by the closed bottom. Moreover, the downward heat due to radiation or conduction is doubly blocked by the gap between the closed bottom and the perforated bottom of the outer container and the gap between the perforated bottom and the shielding plate of the outer container. Can be Furthermore, since the hot air normally flows upward, the outside air flows from the perforated bottom, so that the bottom of the outer container is not significantly heated. Even if the hot air above the perforated bottom flows downward through the hole in the perforated bottom, the gap between the perforated bottom of the outer container and the shielding plate is communicated to the outside, so that the hot air flows to the side. Dissipate outside. Therefore, the temperature rise of the shielding plate of the outer container is greatly suppressed. Therefore, even if the combustion device is placed on the table, the surface of the table is prevented from being damaged or discolored.

[0010] Then, the vent hole in the perforated bottom of the outer container is perforated so as to be disposed outside the bottom of the inner container in plan view and to be disposed inside the shielding plate of the outer container. However, in the case of a combustion device in which a leg extending below the closed bottom is formed at the bottom of the inner container, the outside air can easily flow into the outer container from the ventilation hole, and the temperature rise of the shielding plate of the outer container may be reduced. It is further suppressed. Also, even if the hot air above the perforated bottom exits through the vent, it does not flow downward directly because it is blocked by the shielding plate. Further, it is preferable because a gap is formed between the shielding plate serving as the bottom of the outer container and the mounting surface of the combustion device.

[0011]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a partially sectional perspective view showing an embodiment of the combustion apparatus of the present invention before assembling. 2A is a cross-sectional view taken along the line II-II of the combustion device of FIG. 1, FIG. 2B is a cross-sectional view taken along the line BB of FIG. 2A, and FIG. It is CC sectional view taken on the line of (a).

As shown in the figure, the present combustion apparatus (hereinafter referred to as a stove) 1 includes an outer container 2 having an open upper end and an inner container 3 having an open upper end disposed in the outer container 1 with a gap therebetween. And Both containers 2 and 3 are formed from plated thin steel plates. Of course, in particular, the entire inner container 3 or the side plate 11, the front and rear wall plates 11a, the roaster 13, and the like may be formed of a heat-resistant plate such as ceramics instead of the plated thin steel plate.

The outer container 2 is provided with a bottom plate 5 which is a perforated bottom having a plurality of ventilation holes 4 perforated. A shielding plate is provided below the bottom plate 5 so that a gap 6 is formed between the bottom plate 5 and the bottom plate 5. The reflector 7 is attached. This gap 6 is open to the outside. That is, the reflection plate 7 is narrower than the bottom plate 5 and has a small area, so that the gap 6 communicates with the outside. Therefore, even if the hot air from above (from the internal container 3) passes through the ventilation holes 4 and goes down, it is blocked by the reflector 7 and flows to the outside from the gap 6 without going to the lower table surface.

An external air supply port 9 is opened in one side plate 8 of the external container 2, and a slide-type open / close lid (not shown) is provided in the external air supply port 9. The reflector 7 has a smaller width and a smaller area than the bottom plate 5, but is not particularly limited to this form. For example, instead of the reflecting plate 7, a second bottom plate having an area equivalent to that of the bottom plate 5 that completely closes the bottom of the external container 2 is provided (a so-called double bottom with the bottom plate 5). In addition, an opening communicating with the outside may be provided in a portion between the bottom plates of the side plates 8 or the front and rear wall plates 8a. In other words, the space between the bottom plates communicates with the outside.

Legs 10 are projected from the lower surface of the bottom plate 5 at four corners thereof. The legs 10 are, as is clear from FIGS. It extends below the reflector 7. Therefore, when the stove 1 is placed on the table, a gap is generated between the side plate 8 and the reflection plate 7 and the upper surface of the table. Of course, instead of the leg 10, a part of the side plate 8 may be extended below the reflection plate 7. In the illustrated embodiment, the side plate 8 extends below the bottom plate 5, but may extend to the position of the bottom plate 5.

The inner container 3 has both side plates 11 inclined so as to open upward. Therefore, the object to be heated located above it can be efficiently heated over a wide range with a small amount of fuel. In addition, the lower part of each side plate 11 is bent so that a step 12 is formed inward. Then, on the stepped portion 12, a rostor 13 having a large number of ventilation holes 13a is placed. The fuel is filled on the roaster 13 in the inner container 3. An internal air supply port 14 is opened below the step 12 on one side plate 11, and an air supply duct 15 extending from the internal air supply port 14 to the vicinity of the external air supply port 9 is attached to the internal air supply port 14. . Therefore, the combustion air from the outside is directly guided to the space below the rostral 13 of the inner container 3.

The inner container 3 has a closed bottom 16 for closing the bottom. A leg 17 extending downward from the closed bottom 16 is formed. Therefore, a gap 18 is formed between the closed bottom 16 and the bottom plate 5 of the outer container (FIGS. 2A and 2B).

As shown in FIG. 2C, when the inner container 3 is placed in the outer container 2, the vent hole 4 of the bottom plate 5 of the outer container 2 closes the inner container 3. It is perforated so as to be located outside the bottom 16. Further, a hole is formed so as to be located inside the outer edge of the reflection plate 7.

After the inner container 3 is placed substantially in the center of the outer container 2, an upper frame 19 for closing a space between the upper edge of the inner container 3 and the upper edge of the outer container 2 is fitted. A vent hole (not shown) is opened in the upper frame 19 or the side plate 8 of the outer container 2 to open a hot air in a space (FIGS. 2A and 2B) 20 between the inner container 3 and the outer container 2. May escape upward or to the side. A net 21 is placed on the upper frame 19, and an object to be heated is placed thereon.

According to the stove 1 configured as described above, the small pieces, ash and hot air of the fuel filled on the roast 13 and burning are trapped in the inner container 3 by the closed bottom 16. Moreover, the downward heat due to radiation and conduction is doubled by the gap 18 between the closed bottom 16 and the bottom plate 5 of the outer container 2 and the gap 6 between the bottom plate 5 and the reflection plate 7. Blocked. Further, the gap 6 between the bottom plate 5 and the reflection plate 7 allows air to flow therethrough, and the air in the gap 18 can escape from the ventilation holes of the bottom plate 5, so that the temperature rise of the reflection plate 7 is large. Is suppressed. Therefore, even if the stove 1 is placed on the table, the surface of the table is prevented from being damaged or discolored.

[0022]

[Effect of the invention]

 According to the present invention, the heat from the fuel in the fuel device is prevented from being transmitted downward by the plurality of bottom members and the plurality of spaces. Therefore, the mounting surface of the combustion device is prevented from being damaged or discolored by heat. Further, the combustion device exhibiting such effects can be put together in a compact configuration.

[Brief description of the drawings]

FIG. 1 is a partially sectional perspective view showing an embodiment of a combustion apparatus of the present invention before assembly.

2 (a) is a cross-sectional view taken along line II-II of the combustion device of FIG. 1, FIG. 2 (b) is a cross-sectional view taken along line BB of FIG. 2 (a), and FIG. 3) is a sectional view taken along line CC of FIG.

FIG. 3 is a partially sectional perspective view showing an example of a conventional combustion device.

[Explanation of symbols]

 1 stove 2 outer container 3 inner container 4 vent hole bottom plate 6 gap 7 reflector 8 · Side plate (of the outer container) 8a · · · Front and rear wall plates 9 · · · External air supply port 10 · · · Legs 11 · · · Side plate 11a · · (of the inner container) Front and rear wall plate 12 of inner container 12 Step 13 Rostor 14 Internal air supply port 15 Air supply duct 16 Closed bottom 17 Leg Part 18 ··· gap 19 ··· upper frame 20 ··· space 21 ··· net

Claims (2)

[Utility model registration claims] 1. An external container having a shielding plate and a perforated bottom located above the shielding plate and having an open top, and a closed bottom disposed with a gap in the external container. A combustion device comprising: an inner container having an open upper part, wherein a gap communicating with the outside is provided between the shield plate and the perforated bottom of the outer container. 2. A ventilation hole perforated in the perforated bottom of the outer container is disposed outside the bottom of the inner container in a plan view, and is disposed inside the shielding plate of the outer container. 2. The combustion device according to claim 1, wherein a leg extending below the closed bottom is formed at a bottom of the inner container.