Charcoal grill
The charcoal grill's double-cylinder structure addresses uneven heating and cumbersome ignition/extinguishing by enhancing airflow and facilitating charcoal reuse, offering efficient and safe cooking and storage.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- 角田 崇
- Filing Date
- 2025-10-30
- Publication Date
- 2026-05-15
AI Technical Summary
Existing charcoal grills face issues with uneven heating, cumbersome ignition and extinguishing processes, and difficulty in reusing leftover fuel, due to their structural limitations and ventilation designs.
A charcoal grill with a double-cylinder structure, featuring a removable inner container and outer cylinder that enhances airflow for efficient ignition, allows for even heating, and facilitates easy extinguishing and reuse of charcoal.
Ensures even heating over a wide area, simplifies the ignition and extinguishing processes, and enables reuse of leftover fuel, reducing operational hassle and improving safety during transportation.
Smart Images
Figure 2026079816000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a hibachi.
Background Art
[0002] An object is to provide a new multi-functional cooking stove that has an extremely simple structure but good stability, can handle various cooking methods, and can achieve a better combustion state. The stove includes a bottomed cylindrical container body, a ventilation shelf provided in the container body in a floating state, and a combustion cylinder installed in the container body. For example, the combustion cylinder is placed upright on the ventilation shelf, and while the fuel is burned in the combustion cylinder, cooking ingredients are placed on a baking net placed on the upper opening of the container body or the like above the combustion cylinder to perform heat cooking of the food ingredients. Also, for example, water is placed at the bottom of the container body, and when extinguishing the combustion charcoal, which is the fuel, the combustion charcoal can be dropped into this water to extinguish the fire. There is a technology related to a multi-functional cooking stove for cooking (Patent Document 1).
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
[0005] In a stove where a combustion cylinder with open ends is placed upright on a ventilation shelf that rises above the bottomed cylindrical container body, and a space is secured between the container body and the combustion cylinder to form a double-cylinder structure, when ignition occurs, air flowing in from the upper opening of the container body flows downward in the space between the container body and the combustion cylinder, and fresh air (combustion air) is powerfully drawn up from below by the updraft generated by the chimney effect inside the combustion cylinder, thus ensuring reliable ignition of the charcoal. However, because the combustion cylinder has an open structure at both ends, it is not possible to transfer the required number of charcoal pieces stored in a fire extinguisher pot into the combustion cylinder all at once before placing it on the ventilation shelf; it was necessary to transfer the charcoal pieces one by one after the combustion cylinder was placed on the ventilation shelf. Also, in stoves where water is placed at the bottom of the container body, it is not possible to place firelighters inside the container body to ignite the charcoal, making the preparation work for ignition cumbersome. During use, the combustion chamber obstructs the diffusion of heat from the burning charcoal. As a result, food is well heated above the combustion chamber where it is exposed to radiant heat from the burning charcoal and convection heat from the heated air. However, food is not well heated above the space between the container body and the combustion chamber where air flows downwards.
[0006] The present invention aims to provide a charcoal grill that allows for even heating of food over a wide area of the grill surface during use, and that allows for extinguishing of the burning charcoal after use, storage of the grill, and reuse of any leftover fuel charcoal. [Means for solving the problem]
[0007] To solve the above problems, the charcoal grill (101) according to the present invention is: An outer container (10) is a bottomed cylindrical shape with an open top, having a first side surface (12) that is a large diameter cylinder at the top, a second side surface (14) that is a small diameter cylinder at the bottom, and a tapered portion (13) that diagonally connects the first side surface (12) and the second side surface (14). An inner container (20) that is removably housed within the outer container (10), A bottomed cylindrical fuel holding section (30) having an open top and a side surface (32) and a bottom surface (34) that allow ventilation, the fuel holding section (30) having a protruding portion (36a) that projects outward from the side surface (32) on the bottom surface (34) and a leg portion (36) that extends downward from the protruding portion (36a), An outer cylinder (22) which is cylindrical with both ends open and is detachably fitted onto the fuel holding part (30), and which blocks airflow through the side surface (32) of the fuel holding part (30) when placed on the protruding part (36a) of the leg part (36) of the fuel holding part (30), An inner container (20) containing, A stand (46) that holds the outer container (10) with its bottom surface (16) lifted off the ground, A lid (140) having a side portion (142) that fits onto the outer container (10) to block air from entering the outer container (10), A fastener (148) fixed to the side portion (142) of the lid (140), which fastens to the stand (46) that holds the outer container (10) to fix the lid (140), the outer container (10), and the stand (46), Equipped with, The legs (36) of the fuel holding section (30) are characterized in that they are tall enough to receive fuel residue that falls into the lower space (80) through the opening in the bottom surface (34) of the fuel holding section (30).
[0008] Herein, a grilling net (150; 152, 154) that can be mounted on the upper end of the side surface (32) of the fuel holding section (30) comprises a large-diameter lower net (152) supported on the first side surface (12) of the outer container (10) and a small-diameter upper net (154) that is detachably placed on the lower net (152), and the grilling net (150; 152, 154) is provided. The lower grill (152) of the grilling net (150; 152, 154) has an access hole (156) that allows access to the fuel holding portion (30) of the inner container (20) when in use. If the upper grilling net (154) of the aforementioned grilling net (150; 152, 154) is characterized by having a larger diameter than the access hole (156) of the lower grilling net (152), Since the fuel holding section (30) can be accessed through the access hole (156), it is preferable that the heat can be adjusted, such as by adding burning charcoal, while cooking food. It is also preferable that food can be heated in two stages, upper and lower. Furthermore, since the upper mesh 154 has a larger diameter than the access hole (156) of the lower mesh 152, it is preferable that the area on the lower mesh 152 where food cannot be placed can be reduced.
[0009] Here, The inner container (20) is placed inside the outer container (10), The upper grilling net (154) of the grilling net (150; 152, 154) is placed on the fuel holding section (30) of the inner container (20), The lower mesh (152) is placed on the upper mesh (154), When the lid (140) is fitted onto the outer container (10) held by the stand (46), and the fastener (148) is fastened to the stand (46), The fuel holding portion (30) of the inner container (20), The upper grill (154) and the lower grill (152) of the aforementioned grilling net (150; 152, 154) If it is characterized by being fixed to the bottom surface (16) of the outer container (10) and the top plate (44) of the lid (140), By fixing the lid 140, the outer container 10, and the stand 46 together, it is possible to suppress the generation of noise during transportation and to facilitate transportation, which is preferable. Furthermore, since the lid 140 and the outer container 10 are more tightly fitted together, the ventilation blocking performance is improved, which is also preferable. [Effects of the Invention]
[0010] According to the present invention, food can be heated well over a wide area of the top surface of the charcoal grill during use, the hassle of extinguishing the burning charcoal after use and storing the grill is reduced, and leftover fuel charcoal can be reused. [Brief explanation of the drawing]
[0011] [Figure 1] It is a schematic perspective view for explaining the schematic configuration of the seven-ring according to the first embodiment. [Figure 2] It is a schematic cross-sectional view when the inner container is housed in the outer container in the seven-ring shown in FIG. 1. [Figure 3] It is an external perspective view at the time of storing the seven-ring according to the second embodiment. [Figure 4] It is an external perspective view at the time of using the seven-ring shown in FIG. 3.
Mode for Carrying Out the Invention
[0012] (First Embodiment) The seven-ring according to the first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic perspective view for explaining the schematic configuration of the seven-ring according to the first embodiment, and FIG. 2 is a schematic cross-sectional view when the inner container is housed in the outer container in the seven-ring shown in FIG. 1.
[0013] (Configuration) As shown in FIG. 1, the seven-ring 1 according to the first embodiment includes an outer container 10 having a bottomed deformed cylindrical shape with an open top, an inner container 20 removably housed in the outer container 10, and a lid 40 configured to fit onto the first side surface 12 (described later) of the outer container 10. The inner container 20 has a bottomed cylindrical shape with an open top and includes a fuel holding portion 30 having legs 36 protruding from the bottom surface 34 toward the bottom surface 16 (described later) of the outer container 10, and an outer cylinder 22 having a cylindrical shape with both ends open and removably externally fitted to the fuel holding portion 30. During use, cooking utensils (not shown) such as a grill net 50, a pot, a frying pan, or a kettle are placed on the seven-ring 1 for cooking.
[0014] The outer container 10 has a deformed cylindrical shape as shown in FIG. 1, and includes a first side surface 12 of a large-diameter cylinder at the upper part, a second side surface 14 of a small-diameter cylinder at the lower part, and a tapered portion 13 that obliquely connects the first side surface 12 and the second side surface 14. The outer container 10 also has a flat bottom surface 16. The first side surface 12, the tapered portion 13, the second side surface 14, and the bottom surface 16 are made of a plate material that does not allow ventilation. A stand 46 made of a metal wire (e.g., stainless steel) is attached to the outside of the outer container 10. The stand 46 holds the outer container 10 in a state where the bottom surface 16 is separated from the ground.
[0015] The outer container 10 is made of a metal material (e.g., stainless steel or tinplate) that has heat resistance and flame retardancy as the housing of the hibachi 1. Note that the outer container may be made by molding diatomaceous clay and sintering it at a high temperature, like a conventional hibachi. Also, the outer container 10 does not necessarily have to be limited to a cylindrical shape, and may be, for example, a square tube shape.
[0016] The fuel holding portion 30 of the inner container 20 has a bottomed cylindrical shape (substantially cage shape) with an open upper part, and includes a side surface 32 formed in a cylindrical shape with a mesh of metal bars and a bottom surface 34 (see FIG. 2) also formed in a mesh shape. The side surface 32 is formed of a metal (e.g., stainless steel) mesh. It is only necessary to allow ventilation, and it may be made of, for example, perforated metal. Also, when the inner container 20 is housed in the outer container 10 and a wire mesh 50 (described later) is placed on the upper edge of the side surface 32 of the fuel holding portion 30, the height of the side surface 32 of the fuel holding portion 30 is set so that the upper end of the first side surface 12 of the outer container 10 and the wire mesh 5 are at the same height.
[0017] The bottom surface 34 is also formed of a metal (e.g., stainless steel) mesh with mesh openings large enough to prevent fuel coal from falling through. The mesh spacing is approximately 6 mm as an example. The mesh pattern can be orthogonal (square), hexagonal (hexagonal tortoiseshell), radially orthogonal, or a polar coordinate concentric grid as shown in Figure 2; there are no particular restrictions. The mesh can be made by welding wires together, or by punching or laser processing metal plates. It is preferable that the bottom surface 34 is fixed to the side surface 32 of the fuel holding section 30 by welding or the like, but considering maintenance (cleaning) after use, the bottom surface member may be made removable by loosely inserting it through the upper opening 38 (Figure 1) and resting it on a projection provided on the lower inner circumference of the side surface 32 of the fuel holding section 30 (not shown). Legs 36 that protrude toward the bottom surface 16 of the outer container 10 are welded to the side surface 32 of the bottom surface 34. Furthermore, the leg portion 36 is provided with a projection 36a that protrudes outward from the side surface 32 on the bottom surface 34, and extends downward from the projection 36a. The leg portion 36 is made of a metal rod such as stainless steel with a diameter of approximately 3 mm. As shown in Figure 2, the length of the leg portion 36 is determined so that the lower space 80 (described later) has a height (for example, 5 cm) sufficient to receive the residue (ash) that falls through the mesh of the bottom surface 34.
[0018] The outer cylinder 22 of the inner container 20 has a cylindrical shape with open ends, is made of a metal plate (for example, a stainless steel plate), and is detachably fitted onto the fuel holding section 30. When the outer cylinder 22 is placed on the protruding portion 36a of the leg portion 36 of the fuel holding section 30, the outer cylinder 22 blocks ventilation through the side surface 32 of the fuel holding section 30.
[0019] As shown in Figure 2, when the legs 36 of the fuel holding section 30 are supported on the bottom surface 16 of the outer container 10 and the inner container 20 is housed inside the outer container 10, a lower space 80 is formed between the bottom surface 16 of the outer container 10 and the bottom surface 34 of the fuel holding section 30, ensuring ventilation from the bottom surface 34 of the fuel holding section 30 into the fuel holding section 30. When the inner container 20 is housed inside the outer container 10 with the outer cylinder 22 fitted onto the fuel holding section 30, the outer cylinder 22 blocks ventilation through the side surface 32 of the fuel holding section 30. When the fuel charcoal burns inside the fuel holding section 30 during ignition (fire starting), ventilation is ensured into the charcoal grill 1 through the annular ventilation passage 70 formed between the side surface of the outer container 10 (first side surface 12, tapered section 13, second side surface 14 (all see Figure 1)) and the outer cylinder 22 of the inner container 20. This point will be discussed later.
[0020] Returning to Figure 1, the explanation continues. The lid 40 is formed in a cylindrical shape with a side portion 42 that fits onto the cylindrical first side surface 12 of the outer container 10, and is equipped with a top plate 44 to block airflow into the outer container 10 when fitted. The height of the side portion 42 of the lid 40 that fits onto the outer container 10 (the depth of the lid 40) is determined so that when the lid 40 fits onto the outer container 10, it blocks the inflow of air even when the outer container 10 is filled with the inner container or when using a trivet (not shown).
[0021] (Ignition method) Traditional charcoal grills had ventilation holes on the lower sides of the grill body, which meant that the flames could be blown out by the wind immediately after ignition, or the flames could be fanned out by strong winds during ignition, or as ash could be blown up by the wind once the fire had progressed to a certain point, falling on the cook, or sparks could fly. In addition, as the grill was used, ash would settle at the bottom inside the grill and could leak out through the ventilation holes. In some cases, sparks could mix with the leaking ash. Therefore, it was necessary to use a separate charcoal starter, placing firelighters at the bottom of the charcoal starter and burning them, then transferring the burning charcoal one by one into the charcoal starter and igniting it.
[0022] The explanation will be based on Figure 2. In the first embodiment of the charcoal grill 1, when ignition occurs, the inner container 20 is housed inside the outer container 10 with the outer cylinder 22 fitted onto the fuel holding section 30. First, an igniter is placed on the bottom surface 16 of the outer container 10 and allowed to burn. Next, the burning charcoal is placed in the fuel holding section 30 and the inner container 20 is housed inside the outer container 10 to ignite the burning charcoal. Air flowing into the charcoal grill 1 from the upper opening 18 (Figure 1) of the outer container 10 flows through the annular ventilation passage 70 formed between the side surface of the outer container 10 and the outer cylinder 22 of the inner container 20, and flows into the fuel holding section 30 through the bottom surface 34 of the fuel holding section 30 via the lower space 80 formed between the bottom surface 16 of the outer container 10 and the bottom surface 34 of the fuel holding section 30 of the inner container 20. More specifically, the outer cylinder 22 of the outer container 10 and the inner container 20 form a double-cylinder structure. The combustion of the igniter in the lower space 80 creates an upward airflow within the fuel holding section 30, forming a chimney-like space. This chimney effect generates a strong updraft, which powerfully draws in air for combustion from the bottom surface 34 of the fuel holding section 30, ensuring ventilation. This suction induces a continuous airflow from the upper opening 18 of the outer container 10 via the lower space 80 and the annular ventilation passage 70, ensuring reliable ignition (fire starting) of charcoal or other fuel within the fuel holding section 30, and allowing for smooth subsequent full-scale combustion. In other words, the charcoal grill 1 can function as a charcoal starter. This eliminates the need to prepare a separate charcoal starter for ignition.
[0023] Furthermore, with conventional charcoal grills, the cook had to perform the cumbersome task of observing the ignition of the burning charcoal and transferring each piece of burning charcoal into the charcoal starter one by one. However, with the charcoal grill 1 according to the first embodiment, the chimney effect of the double-cylinder structure allows for a powerful flame to be obtained in a short time from a small fire immediately after ignition. Therefore, the required number of fuel charcoal can be placed all at once into the fuel holding section 30 and ignited, reducing the burden of the ignition process. In addition, since the bottom surface 34 of the fuel holding section 30 has a mesh structure, it is also possible to heat the fuel holding section 30 containing multiple pieces of fuel charcoal with a heat source separate from the charcoal grill 1 to ignite the fuel charcoal, and then transfer the fuel holding section 30 into the outer container 10.
[0024] (when used) Traditional charcoal grills have a vent at the bottom of the grill body, requiring the cook to monitor the heat inside and adjust the degree to which the vent is opened as needed, or to fan the grill with a hand fan to supply air, which is a cumbersome process. Also, because of the vent, the grill can be affected by wind, such as the flames being fanned out by strong winds, ash being blown up and falling on the cook, and sparks flying. Over time, ash that settles at the bottom of the grill can leak out through the vent, and in some cases, sparks may be mixed with the leaking ash.
[0025] The explanation will be based on Figure 1. In the first embodiment of the charcoal grill 1, after ignition is complete and the fuel charcoal is producing sufficient heat, the outer cylinder 22 fitted onto the fuel holding section 30 is removed from the fuel holding section 30 to heat the food. Specifically, after the ignition of the burning charcoal is completed in the ignition method described above, the outer cylinder 22 is removed from the fuel holding section 30, the grilling net 50 is placed on the upper edge of the side surface 32 of the fuel holding section 30, and the food is placed on top to cook. By removing the outer cylinder 22, which is made of a metal plate or the like, the radiant heat from the burning charcoal burning inside the side surface 32 made of metal mesh of the fuel holding section 30 directly hits the food on the grilling net 50, so that not only the food placed above the upper opening 38 of the fuel holding section 30 but also the food placed above the annular ventilation passage 70 (Figure 2) can be heated. At this time, the tapered section 13, which is angled with respect to the first side surface 12 and the second side surface 14, reflects the radiant heat from the burning charcoal towards the food on the grilling net 50, so that the food can be heated efficiently. The preferred inclination angle of the tapered section 13 is 40 to 50°, more preferably 43 to 46°, and even more preferably 45°. Furthermore, unlike conventional charcoal grills, there are no ventilation holes on the lower side of the outer container 10, so the influence of the external environment during cooking can be minimized. The ash generated by combustion falls through the mesh of the bottom surface 34 of the fuel holding section 30 onto the bottom surface 16 of the outer container 10.
[0026] (Firefighting methods) Conventional charcoal grills have ventilation holes at the bottom of the body, making it difficult to completely seal the interior even when the top opening is covered. Therefore, covering the grill does not allow for complete extinguishing of the fire. Consequently, the conventional procedure for safely and reliably extinguishing burning charcoal involves preparing a container (such as a bucket) filled with water and using tongs to transfer the burning charcoal one by one into the container to extinguish the fire. The reason for extinguishing the charcoal one by one is that if a large number of brightly burning charcoal pieces are suddenly submerged in water, the charcoal may crack, and the resulting fragments may scatter.
[0027] In the first embodiment of the charcoal grill 1, with the fuel holding section 30 housed inside the outer container 10 (while the charcoal is burning), the lid 40 is fitted onto the first side surface 12 of the outer container 10 to cover the charcoal grill 1 (outer container 10). This blocks airflow into the outer container 10 (inside the charcoal grill 1) and extinguishes the burning charcoal. Unlike conventional methods of extinguishing fires in charcoal grills, there is no need to transfer the burning charcoal to a fire extinguishing pot, and the remaining charcoal is not immersed in water, thus eliminating the need to dry the burning charcoal before reuse.
[0028] (reuse) In the charcoal grill 1 according to the first embodiment, in the preparation stage before reusing and igniting the remaining charcoal, the fuel holder 30 containing the remaining charcoal is removed from the outer container 10, the outer container 10 is removed from the stand 46, and the outer container 10 is cleaned. Since the outer container 10 can be handled by removing it from the stand 46, the disposal of fuel (charcoal) residue (burnt residue) generated from previous use can be easily carried out. After that, the fuel holder 30 containing the remaining charcoal is placed back into the outer container 10, and the fuel charcoal is ignited in the ignition method described above to reuse the remaining charcoal.
[0029] (Second Embodiment) Figure 3 is a perspective view of the charcoal grill in its stored state according to the second embodiment, and Figure 4 is a perspective view of the charcoal grill shown in Figure 3 in use. Elements identical or similar to those in the charcoal grill according to the first embodiment are denoted by the same or similar reference numerals and their descriptions are omitted.
[0030] (composition) As shown in Figure 3, the charcoal grill 101 according to the second embodiment is composed of an outer container 10, an inner container 20, and a lid 140. A fastener 148 is fixed to the side portion 142 of the lid 140, and the fastener 148 fastens to a stand 46 that holds the outer container 10, thereby fixing the lid 140, the outer container 10, and the stand 46 together as a single unit. By making them a single unit, it is possible to suppress the generation of noise during transport and to make the transport work easier. In addition, even if the charcoal grill 101 is accidentally knocked over during fire extinguishing, the burning charcoal will not scatter, ensuring safety. Furthermore, even if ash accumulates inside after the fire has been extinguished, it will not tip over and spill, so it can be transported with peace of mind. The stand 46 functions not only as a leg to hold the outer container 10, but also as a fastener to the lid 140.
[0031] A grilling net 150 (Figure 4) is placed on the charcoal grill 101 for cooking. Here, as shown in Figure 4, the grilling net 150 consists of a large-diameter lower net 152 supported on the first side surface 12 of the outer container 10, and a small-diameter upper net 154 that is detachably placed on the lower net 152. The lower net 152 has an access hole 156 that allows access to the upper opening 38 (Figure 1) of the fuel holding section 30 when in use. The upper net 154 is formed to be larger in diameter than the access hole 156. As an example, the dimensions of the grilling net 150 are as follows: the diameter of the lower net 152 supported on the outer container 10 is 240 mm, the diameter of the upper net 154 is 180 mm, and the diameter of the access hole 156 is 112 mm. In the second embodiment, the grilling net was described as having two stages, but the present invention is not limited to this, and a grilling net with three or more stages may also be used.
[0032] The height of the side 32 of the fuel holding section 30 is set such that when the inner container 20 is housed inside the outer container 10 and the grilling net 150 is placed on the upper edge of the side 32 of the fuel holding section 30, the upper end of the first side 12 of the outer container 10 and the lower grilling net 152 of the grilling net 150 are at approximately the same height.
[0033] (when used)
[0034] In the charcoal grill 101 according to the second embodiment, after the charcoal has been ignited, the outer cylinder 22 is removed from the fuel holding section 30, the grill net 150 is placed on the upper edge of the side surface 32 of the fuel holding section 30, and food is placed on top to cook. By removing the outer cylinder 22, the radiant heat from the burning charcoal inside the side surface 32 of the fuel holding section 30 directly hits the food on the grill net 150. As explained in the first embodiment, the diagonally positioned tapered section 13 reflects the radiant heat from the burning charcoal towards the food on the lower grill net 152, so the food can be heated efficiently. The fuel holding section 30 can be accessed through the access hole 156 provided in the center of the lower grill net 152, so the heat can be adjusted, such as by adding more charcoal, while cooking the food. Since the upper grill net 154 has a larger diameter than the access hole 156 of the lower grill net 152, the area on the lower grill net 152 where food cannot be placed can be reduced. Since the upper grate 154 is detachably mounted on the lower grate 152, a wider combustion surface can be secured when the lower grate 152 is used alone. When the lower grate 152 and upper grate 154 are used together, the heat can be differentiated, such as grilling on the lower grate and frying in a pan on the upper grate. When the upper grate 154 is used alone, greater thermal energy can be utilized. By separating the upper grate 154 from the lower grate 152 in the height direction directly above the fuel holding section 30, where the thermal energy is particularly high, overheating of food on the upper grate 154 can be prevented. Alternatively, upper grates of different heights may be prepared in advance so that they can be selected according to the type of food being heated.
[0035] Furthermore, the lid 140 can be placed with the top plate 44 facing downwards and the top open, and the stand 46 can be placed on top of it, so it does not get in the way and the heat effect on the table can be reduced.
[0036] (Firefighting methods) In the charcoal grill 101 according to the second embodiment, the fastener 148 fastens to the stand 46 that holds the outer container 10, thereby integrally fixing the lid 140, the outer container 10, and the stand 46. As a result, the lid 140 and the outer container 10 are more tightly fitted together, improving the ventilation blocking performance. [Explanation of Symbols]
[0037] 1: Shichirin (charcoal grill) 10: Outer container, 12: First side, 13: Tapered part, 14: Second side, 16: Bottom, 18: Top opening 20: Inner container, 22: Outer cylinder 30: Fuel holding part, 32: Side, 34: Bottom, 36: Leg, 36a: Projection, 38: Top opening 40: Lid, 42: Side panels, 44: Top plate, 46: Stand, 50: Grilling rack 70: Ring-shaped ventilation channel, 80: Lower space 101: Shichirin (charcoal grill) 140: Lid, 142: Side panels, 148: Fasteners, 150: Grilling net, 152: Lower grill, 154: Upper grill
Claims
1. An outer container (10) is a bottomed cylindrical shape with an open top, having a first side surface (12) that is a large diameter cylinder at the top, a second side surface (14) that is a small diameter cylinder at the bottom, and a tapered portion (13) that diagonally connects the first side surface (12) and the second side surface (14). An inner container (20) that is removably housed within the outer container (10), A bottomed cylindrical fuel holding section (30) having an open top and a side surface (32) and a bottom surface (34) that allow ventilation, the bottom surface (34) having a protruding portion (36a) that projects outward from the side surface (32), and the fuel holding section (30) having a leg portion (36) that extends downward from the protruding portion (36a), An outer cylinder (22) which is cylindrical with both ends open and is detachably fitted onto the fuel holding part (30), and which blocks airflow through the side surface (32) of the fuel holding part (30) when placed on the protruding part (36a) of the leg part (36) of the fuel holding part (30), An inner container (20) including, A stand (46) that holds the outer container (10) with its bottom surface (16) lifted off the ground, A lid (140) having a side portion (142) that fits onto the outer container (10) to block air from entering the outer container (10), A fastener (148) fixed to the side portion (142) of the lid (140), the fastener (148) fastening to the stand (46) that holds the outer container (10) to fix the lid (140), the outer container (10), and the stand (46), Equipped with, A charcoal grill (101) wherein the legs (36) of the fuel holding section (30) are tall enough to receive fuel residue that falls into the lower space (80) through the opening in the bottom surface (34) of the fuel holding section (30).
2. In the charcoal grill (101) described in claim 1, A grilling net (150; 152, 154) that can be mounted on the upper end of the side surface (32) of the fuel holding section (30), comprising a large-diameter lower net (152) supported on the first side surface (12) of the outer container (10) and a small-diameter upper net (154) that is detachably placed on the lower net (152), wherein the grilling net (150; 152, 154) The lower grill (152) of the grilling net (150; 152, 154) has an access hole (156) that allows access to the fuel holding portion (30) of the inner container (20) when in use. A charcoal grill (101) in which the upper grill (154) of the grilling net (150; 152, 154) has a larger diameter than the access hole (156) of the lower grill (152).
3. In the charcoal grill (101) described in claim 2, The inner container (20) is placed inside the outer container (10), The upper grilling net (154) of the grilling net (150; 152, 154) is placed on the fuel holding section (30) of the inner container (20), The lower mesh (152) is placed on the upper mesh (154), When the lid (140) is fitted onto the outer container (10) held by the stand (46), and the fastener (148) is fastened to the stand (46), The fuel holding portion (30) of the inner container (20), The upper grill (154) and the lower grill (152) of the aforementioned grilling net (150; 152, 154) A charcoal grill (101) is fixed to the bottom surface (16) of the outer container (10) and the top plate (44) of the lid (140).
4. An outer container (10) is a bottomed cylindrical shape with an open top, having a first side surface (12) that is a large diameter cylinder at the top, a second side surface (14) that is a small diameter cylinder at the bottom, and a tapered portion (13) that diagonally connects the first side surface (12) and the second side surface (14). An inner container (20) that is removably housed within the outer container (10), A bottomed cylindrical fuel holding section (30) having an open top and a side surface (32) and a bottom surface (34) that allow ventilation, the fuel holding section (30) having a projection (36a) that protrudes outward from the side surface (32) on the bottom surface (34) and a leg portion (36) that extends downward from the projection (36a), An outer cylinder (22) which is cylindrical with both ends open and is detachably fitted onto the fuel holding part (30), and which blocks airflow through the side surface (32) of the fuel holding part (30) when placed on the protruding part (36a) of the leg part (36) of the fuel holding part (30), An inner container (20) including, A stand (46) that holds the outer container (10) with its bottom surface (16) lifted off the ground, A lid (140) having a side portion (142) that fits onto the outer container (10) to block air from entering the outer container (10), A fastener (148) fixed to the side portion (142) of the lid (140), the fastener (148) fastening to the stand (46) that holds the outer container (10) to fix the lid (140), the outer container (10), and the stand (46), A grilling net (150; 152, 154) that can be mounted on the upper end of the side surface (32) of the fuel holding section (30), comprising a large-diameter lower net (152) supported on the first side surface (12) of the outer container (10) and a small-diameter upper net (154) that is detachably placed on the lower net (152), Equipped with, The legs (36) of the fuel holding section (30) are tall enough to receive fuel residue that falls into the lower space (80) through the opening in the bottom surface (34) of the fuel holding section (30). The lower grill (152) of the grilling net (150; 152, 154) has an access hole (156) that allows access to the fuel holding portion (30) of the inner container (20) when in use. The upper grilling net (154) of the grilling net (150; 152, 154) has a larger diameter than the access hole (156) of the lower grilling net (152). When the inner container (20) is placed inside the outer container (10), the upper grilling net (154) of the grilling net (150; 152, 154) is placed on the fuel holding portion (30) of the inner container (20), the lower grilling net (152) is placed on the upper grilling net (154), the lid (140) is fitted onto the outer container (10) held by the stand (46), and the fastener (148) is fastened to the stand (46), A charcoal grill (101) in which the fuel holding portion (30) of the inner container (20), the upper grill (154) and the lower grill (152) of the grilling nets (150; 152, 154) are fixed to the bottom surface (16) of the outer container (10) and the top plate (44) of the lid (140).