Barbecue grill

Abstract

To improve heating efficiency of food materials and exhaust efficiency of a combustor.SOLUTION: There is provided a barbecue grill (1) in which: at an outside of a combustion space (8) in which flame is formed, there is provided a swivel inflow part (9) for swiveling air and flowing the air into the combustion space (8); above the combustion space (8), there is formed a swivel outflow part (15) for swiveling a combustion gas and flowing the combustion gas from the combustion space (8); and above the swivel outflow part (15), a net-shaped cooking tool (4) is mounted. The cooking tool (4) comprises an outer peripheral cylinder (17) extending in a cylindrical shape and upward relative to the surface of a cooking body (16), on an outer periphery of the net-shaped cooking body (16) having open holes 18 penetrating vertically (center open hole 19 and spiral open holes 20). In addition, the open holes 18 (spiral open holes 20) are arranged in a spiral state and in the same direction as the swivel direction on the swivel outflow part (15).SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a barbecue grill.

Background Art

[0002] Conventionally, when cooking food using a combustor such as a stove or a hibachi, a net-like cooking tool is placed on top of the combustor, and the food is placed on top of the cooking tool.

[0003] As this cooking tool, one formed in a flat plate shape by attaching a wire mesh to a metal frame is often used (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the above conventional cooking tool, since it is formed in a flat plate shape, the heat generated by the combustor diffused outward when passing through the cooking tool.

[0006] Therefore, in the conventional cooking tool, not only is the heating efficiency of the food low, but also the exhaust efficiency of the combustor is low, and there is a risk of smoke generation due to incomplete combustion caused by a decrease in the combustion temperature.

Means for Solving the Problems

[0008] Therefore , Claim 1In the present invention according to this, a swirling inflow part for swirling and introducing air into the combustion space is formed outside the combustion space where a flame is formed, and a swirling outflow part for swirling and discharging combustion gas from the combustion space is formed above the combustion space. In a barbecue grill on which a net-shaped cooking utensil is placed above the swirling outflow part, the cooking utensil is provided with an outer peripheral cylinder extending in a cylindrical shape upward from the surface of the cooking body on the outer periphery of a net-shaped cooking body having a through-hole penetrating vertically. The through-hole is formed with a central through-hole at the center and a plurality of spiral through-holes arranged spirally in the same direction as the swirling direction in the swirling outflow part outside the central through-hole.

[0009] Also, Claim 2 In the present invention according to this, the Claim 1 In the present invention according to this, a central exhaust hole is provided at the center of the swirling outflow part.

Advantages of the Invention

[0010] And the present invention has the following advantages.

[0011] That is, in the present invention, in a net-shaped cooking utensil placed on the upper part of a burner in which an exhaust hole is formed above the combustion space where a flame is formed, since an outer peripheral cylinder extending in a cylindrical shape upward from the surface of the cooking body is provided on the outer periphery of a net-shaped cooking body having a through-hole penetrating vertically, it is possible to suppress the heat discharged from the exhaust hole of the burner from being immediately diffused outward by the outer peripheral cylinder, improve the heating efficiency of the food ingredients, improve the exhaust efficiency of the burner, and suppress the generation of smoke due to incomplete combustion caused by a decrease in the combustion temperature.

[0012] In particular, an air swirling inlet section for swirling and introducing air into the combustion space is formed outside the combustion space where a flame is formed, and a swirling outlet section for swirling and discharging combustion gas from the combustion space is formed above the combustion space. A net-like cooking utensil is placed above the swirling outlet section. When the cooking utensil is configured such that an outer peripheral cylinder extending upward in a cylindrical shape is provided on the outer periphery of a net-like cooking body having a through-hole penetrating vertically, it is possible to suppress the heat (combustion gas) discharged from the exhaust holes of the burner from diffusing immediately to the outside, improve the heating efficiency of the food ingredients, improve the exhaust efficiency of the burner, and suppress the generation of smoke due to incomplete combustion caused by a decrease in the combustion temperature.

[0013] Further, when the through-holes are formed in a spiral arrangement in the same direction as the swirling direction in the swirling outlet section, the exhaust efficiency of the burner can be further improved.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0015] Hereinafter, the specific configuration of the barbecue grill according to the present invention will be described with reference to the drawings.

[0016] As shown in FIGS. 1 and 2, the barbecue grill 1 is configured such that a cooking grate 3 is provided above the combustion promoter 2, and a cooking utensil 4 is provided above the cooking grate 3.

[0017] As shown in FIGS. 1 to 3, the combustion promoter 2 has a plurality (here, four) of annular partition plates 6 arranged vertically at equal intervals with their outer peripheral ends aligned above a disc-shaped bottom plate 5, and a plurality (here, eight) of rectifying plates 7 are attached to the upper portions of the bottom plate 5 and the partition plates 6 at equal intervals in the circumferential direction while being inclined at a certain inclination angle with respect to the radial direction from the outer peripheral ends of the bottom plate 5 and the partition plates 6 toward the center. Note that the rectifying plate 7 extends from the outer peripheral end to the inner peripheral end of the annular partition plate 6.

[0018] The combustion promoter 2 can form a flame by igniting a combustion material such as charcoal or firewood placed on the upper center of the bottom plate 5.

[0019] In this combustion promoter 2, a hollow cylindrical combustion space 8 (the space where the flame is formed) surrounded by the inner peripheral end of the partition plate 6 is formed at the upper center of the bottom plate 5, and an air swirling inflow portion 9 is formed in which the air (outside air) outside the combustion space 8 flows into the combustion space 8 while swirling (here, rotating counterclockwise in plan view) in a certain direction by the rectifying plate 7 inclined in a certain direction.

[0020] Thereby, in the combustion promoter 2, the combustion of the flame can be promoted by the swirling flow formed inside the combustion space 8 by the swirling inflow portion 9, and the combustion efficiency can be improved.

[0021] As shown in FIGS. 1, 2, and 4, the trivet 3 forms a rim 11 bent downward at the outer peripheral end of a disc-shaped base plate 10, provides a central exhaust hole 12 at the center (above the center of the combustion space 8 of the combustion promoter 2), provides a plurality (here, four) of outer exhaust holes 13 on its outer periphery (above the outer peripheral side of the combustion space 8 of the combustion promoter 2), and further forms a plurality (here, four) of support plates 14 bent upward at equal intervals in the circumferential direction while being inclined at a certain inclination angle with respect to the radial direction from the center to the outside between adjacent outer exhaust holes 13.

[0022] The trivet 3 can be rotatably attached to the upper end of the combustion accelerator 2 (the upper end of the partition plate 6) by covering and attaching an edge frame 11 to the upper end of the combustion accelerator 2.

[0023] Also, the trivet 3 can support cooking utensils such as the cooking tool 4, a pot, or a medicine pot with a support plate 14.

[0024] In this trivet 3, after the combustion gas discharged from the combustion space 8 through the central exhaust hole 12 and the outer exhaust hole 13 is blocked by the cooking tool 4 or the bottom of the cooking utensil and discharged horizontally, it flows out of the combustion space 8 while being inclined in a certain direction by the support plate 14 inclined in a certain direction, so that a swirling outflow portion 15 for swirling (here, rotating counterclockwise in plan view) and flowing out the combustion gas from the combustion space 8 is formed. Note that the swirling inflow portion 9 and the swirling outflow portion 15 are made to swirl in the same direction (here, the counterclockwise rotation direction in plan view).

[0025] Thereby, in the trivet 3, the swirling outflow portion 15 can smoothly discharge the combustion gas from the combustion space 8, promote the combustion of the flame, and improve the combustion efficiency.

[0026] As shown in FIGS. 1, 2, 5, and 6, the cooking tool 4 is provided with a cylindrical outer peripheral cylinder 17 on the outer periphery of a disk-shaped cooking body 16 for placing food ingredients.

[0027] The cooking body 16 is formed in a net shape by forming a plurality of through holes 18 that penetrate vertically through a disk with a certain thickness. The through holes 18 form a circular central through hole 19 at the center, and a plurality (here, five) of spiral through holes 20 are arranged in a spiral shape in the same direction as the swirling direction at the swirling outflow portion 15 (here, the counterclockwise direction in plan view) on the outside of the central through hole 19. A plurality of rows (here, 16 rows) of spiral through hole rows 21 are arranged at equal intervals in the circumferential direction. Note that between adjacent through holes 18 (central through hole 19, spiral through hole 20) from the center to the outer peripheral side, a plurality (here, six) of annular heating plates 22 arranged in concentric circles are formed, and between adjacent spiral through holes 20 in the circumferential direction, a plurality (here, 16) of spiral heating plates 23 that curve in a spiral shape in the same direction as the swirling direction at the swirling outflow portion 15 (here, the counterclockwise direction in plan view) are formed. Here, the width of each of the annular heating plates 22 arranged in concentric circles gradually widens toward the outer peripheral side, the width of each spiral heating plate 23 gradually widens toward the outer peripheral side, and further, the opening area of each of the spiral through holes 20 forming the spiral through hole row 21 widens toward the outer peripheral side.

[0028] The outer peripheral cylinder 17 extends upward in a cylindrical shape from the outer peripheral edge of the cooking body 16 above the surface (upper surface: cooking surface) of the cooking body 16 so as to surround the entire surface of the cooking body 16. Note that the outer peripheral cylinder 17 may be formed in a cylindrical shape not only above but also below the surface of the cooking body 16. Note that the height of the outer peripheral cylinder 17 (the height above the surface of the cooking body 16) is made higher than the height of the support plate 14 of the trivet 3 (the distance between the upper end surface of the combustion accelerator 2 and the lower end surface of the cooking utensil 4).

[0029] And in the barbecue grill 1, the heat (combustion gas) discharged from the combustion space 8 of the combustion accelerator 2 heats the heating plates (the annular heating plate 22 and the spiral heating plate 23), and is discharged upward from the through holes 18 (the central through hole 19 and the spiral through hole 20). At this time, the combustion gas is guided to the outer peripheral cylinder 17 without diffusing all at once after passing through the cooking body 16, and is smoothly discharged upward. Moreover, since the spiral through holes 20 of the cooking body 16 are arranged spirally in the same direction as the swirling direction at the swirling outflow portion 15, the combustion gas is discharged more smoothly without resistance.

[0030] As described above, the barbecue grill 1 is configured to be separable into the combustion accelerator 2, the cooking grate 3, and the cooking utensils 4, but is not limited to this, and may be configured as a single unit as a whole, the combustion accelerator 2 and the cooking grate 3 may be integrally formed, or the cooking grate 3 and the cooking utensils 4 may be integrally formed. In the present invention, the combustion accelerator 2 alone or the combustion accelerator 2 and the cooking grate 3 can be used as a combustor.

[0031] As described above, the barbecue grill 1 has a configuration in which a net-like cooking utensil 4 is placed on the upper part of a combustor (combustion accelerator 2 and cooking grate 3) in which exhaust holes (central exhaust hole 12 and outer exhaust hole 13) are formed above the combustion space 8 where a flame is formed.

[0032] And the cooking utensil 4 has a configuration in which an outer peripheral cylinder 17 extending upward in a cylindrical shape is provided on the outer periphery of a net-like cooking body 16 having a through hole 18 penetrating vertically.

[0033] Therefore, in the cooking utensil 4 having the above configuration, it is possible to suppress the heat (combustion gas) discharged from the exhaust holes (central exhaust hole 12 and outer exhaust hole 13) of the combustor (combustion accelerator 2 and cooking grate 3) from diffusing directly to the outside, improve the heating efficiency of the food ingredients, improve the exhaust efficiency of the combustor (combustion accelerator 2 and cooking grate 3), and suppress the generation of smoke due to incomplete combustion caused by a decrease in the combustion temperature.

[0034] In addition, in the cooking utensil 4 with the above configuration, the outer peripheral cylinder 17 provided on the outer periphery of the cooking body 16 can prevent the deformation of the cooking body 16, prevent the food ingredients from falling off the cooking body 16, and further, the food ingredients can be well heated in a short time by being heat-insulated by the outer peripheral cylinder 17 and heat reflection.

[0035] In particular, in the barbecue grill 1 with the above configuration, a swirling inflow portion 9 for swirling and introducing air into the combustion space 8 is formed outside the combustion space 8 where the flame is formed, and a swirling outflow portion 15 for swirling and discharging the combustion gas from the combustion space 8 is formed above the combustion space 8, and a net-like cooking utensil 4 is placed above the swirling outflow portion 15.

[0036] Therefore, in the barbecue grill 1 with the above configuration, it is possible to suppress the heat (combustion gas) discharged from the exhaust holes (the central exhaust hole 12 and the outer exhaust hole 13) of the burner (the combustion promoter 2 and the cooking plate 3) from being immediately diffused outward by the outer peripheral cylinder 17, improve the heating efficiency of the food ingredients, improve the exhaust efficiency of the burner (the combustion promoter 2 and the cooking plate 3), and suppress the generation of smoke due to incomplete combustion caused by the decrease in the combustion temperature.

[0037] In addition, the above barbecue grill 1 has a configuration in which through holes (spiral through holes 20) are arranged in a spiral shape in the same direction as the swirling direction at the swirling outflow portion 15.

[0038] Therefore, in the barbecue grill 1 with the above configuration, the exhaust efficiency of the burner (the combustion promoter 2 and the cooking plate 3) can be further improved.

Explanation of Reference Numerals

[0039] 1 Barbecue grill 2 Combustion promoter 3 Cooking plate 4 Cooking utensil 5 Bottom plate 6 Partition plate 7 Rectifying plate 8 Combustion space 9 Swirling inflow section 10 Bedplate 11 Edge frame 12 Central exhaust hole 13 Outer exhaust hole 14 Support plate 15 Swirling outflow section 16 Cooking body 17 Outer peripheral cylinder 18 Through hole 19 Central through hole 20 Spiral through hole 21 Spiral through hole row 22 Annular heating plate 23 Spiral heating plate

Claims

1. An external side of a combustion space where a flame is formed is provided with a swirling inflow part for swirling and introducing air into the combustion space, and an upper part of the combustion space is provided with a swirling outflow part for swirling and discharging combustion gas from the combustion space. In a barbecue grill having a net-shaped cooking utensil placed above the swirling outflow part, the cooking utensil is provided, on an outer periphery of a net-shaped cooking body having a through hole penetrating vertically, with an outer peripheral cylinder extending in a cylindrical shape upward from a surface of the cooking body, the barbecue grill is characterized in that the through hole is formed with a central through hole at the center and a plurality of spiral through holes arranged in a spiral shape in the same direction as the swirling direction in the swirling outflow part outside the central through hole.

2. The barbecue grill according to claim 1, characterized in that a central exhaust hole is provided at the center of the swirling outflow part.

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