Fire pit base

Abstract

To provide a bonfire stand base by reinforcing a basic structure of a bonfire stand base having a U shape in a plan view and an opened front side, and by using the basic structure so as to provide with a simple construction and simple work, a configuration permitting a plurality of cookings simultaneously while securing origins of fire in a plurality of stages.SOLUTION: A bonfire stand base comprises at least two flat lateral face plates 3, at least one flat back face plate 5, and at least one flat plain face plate 7. A frame body 71 of a U shape in a plan view is constituted by engaging a vertically straight slit-shaped window 33 for a back face with L-shaped hook parts 19 of the two lateral face plates. A tongue-like insertion part 53 for the plain face plate is inserted into a horizontally straight slit-shaped window 35 for the back face plate, and a T-shaped locking part for the plain face plate is dropped downward and engaged with reverse L-shaped hook parts 11, 13 of the lateral face plates, and with this, the two lateral face plates of the frame body of a U shape in a plan view is restricted in expansion to the left and right.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a campfire base, and in particular, it can provide a strong basic structure of a campfire base in a U-shape in plan view with an open front side, and can ensure multiple fire sources in multiple stages using the basic structure to perform multiple cookings simultaneously. It is related to an invention devised so that a configuration can be provided with a simple structure and simple operations.

Background Art

[0002] As a conventional portable campfire base, there is something like an assembled stove described in Patent Document 1. The assembled stove described in Patent Document 1 has a stove frame body in which four panels are connected so as to be bendable. The stove frame body is folded when carried and becomes annular when in use. The panels have a plurality of recesses formed in the height direction.

[0003] Also, an ash receiving net is installed inside the stove frame body, a charcoal receiving net is installed thereon, and a trivet is further installed thereon. Various pots, frying pans, etc. are installed on the trivet. Four convex portions are provided on the outer peripheral side of the charcoal receiving net, and the convex portions are engaged with the recesses of the panels to be held inside the stove frame body. Four convex portions are also provided on the outer peripheral side of the ash receiving net, and it is held inside the stove frame body in the same manner as the charcoal receiving net.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the above conventional configuration had the following problems. In other words, the modular stove described in Patent Document 1 has a furnace frame that becomes ring-shaped when in use, so it is not configured in a way that allows the heat source or the object to be heated to be inserted into the furnace frame from the horizontal. Therefore, there was a problem in that it was not possible to secure multiple heat sources and cook multiple dishes simultaneously. Furthermore, in the case of the assembly-type stove described in Patent Document 1, there is a description that the work should be performed with both ends of the stove frame body open and the front side open, but the stove frame body in that state is unstable and has the problem of poor workability.

[0006] The present invention is based on these points and aims to provide a bonfire stand base that can provide a robust basic structure for a U-shaped bonfire stand base in plan view with the front side open, and that can provide a configuration that allows for securing multiple fire sources on different levels and performing multiple cooking simultaneously, with a simple configuration and simple operation. [Means for solving the problem]

[0007] To achieve the above objective, the fire pit base according to claim 1 of the present invention comprises at least two flat side plates, at least one flat back plate, and at least one flat top plate, wherein vertical horizontal windows are formed on the left and right side edges of the back plate, and horizontal horizontal windows are formed on the inside of the left and right side edges, L-shaped hooks are formed on the rear edge of the side plates, and inverted L-shaped hooks are formed on the front edge, and tongue-shaped inserts are formed on the left and right sides of the rear edge of the top plate Each of the parts is formed, and T-shaped locking parts are formed on the front left and right edges. The vertical horizontal window of the back plate is engaged with the L-shaped hooks of the two side plates to form a U-shaped frame in plan view. The tongue-shaped insertion part of the top plate is inserted into the horizontal horizontal window of the back plate, and the T-shaped locking part of the top plate is dropped into the inverted L-shaped hook of the side plate and engaged, thereby restricting the expansion of the two side plates of the U-shaped frame in plan view to the left and right. Furthermore, the fire pit base according to claim 2 of the present invention is characterized in that, in the fire pit base described in claim 1, the rear plate has multiple horizontal straight-line windows provided in the vertical direction, and the side plates also have multiple inverted L-shaped hooks provided in the vertical direction, and any number of planar plates for any purpose can be attached to the U-shaped frame in plan view, which is made up of the rear plate and the side plates, using the multiple horizontal straight-line windows and the multiple inverted L-shaped hooks. Furthermore, the fire pit base according to claim 3 of the present invention is characterized in that, in the fire pit base described in claim 1, two vertical horizontal windows are provided on the left and right side edges of the back plate, two on each side in an alternating pattern, four L-shaped parts are provided vertically on the rear end edge of the side plate, the back plate is placed on both the left and right sides of the side plate, two of the four L-shaped parts of the side plate are used to connect with the back plate on both the left and right sides, and the above configuration is connected in the left and right directions, thereby enabling the U-shaped frame in plan view to be connected in the lateral direction. Furthermore, the fire pit base according to claim 4 of the present invention is characterized in that, in the fire pit base described in claim 1, the flat plate is provided with a straight-line opening for attaching another plate in an upright position. Furthermore, the fire pit base according to claim 5 of the present invention is characterized in that, in the fire pit base described in claim 4, the other plate is a flat plate different from the flat plate described above. Furthermore, the fire pit base according to claim 6 of the present invention is characterized in that, in the case of the fire pit base described in claim 5, the other plate is a plate for a small fire pit window. Furthermore, the fire pit base according to claim 7 of the present invention is characterized in that, in the fire pit base described in claim 1, an engaging portion for attaching another plate is provided at the upper end of the back plate. Furthermore, the fire pit base according to claim 8 of the present invention is characterized in that, in the fire pit base described in claim 1, an engaging portion for attaching another plate is provided at the upper end of the side plate. Furthermore, the fire pit base according to claim 9 of the present invention is characterized in that, in the fire pit base described in claim 7 or claim 8, the other board is a board for a small fire pit window, a board for a crossbeam, or a board for securing a shelf. Furthermore, the fire pit base according to claim 10 of the present invention is a fire pit base according to claim 2, wherein the flat plate is a support plate with a U-shape in plan view and an opening on the front side, and the support plate is attached by inserting the tongue-shaped part into a horizontal window provided in the lowest vertical area of ​​the rear plate and dropping the T-shaped part into an inverted L-shaped part provided in the lowest vertical area of ​​the side plate and engaging them, and a fire pit can be placed from the front side within the U-shape in plan view of the support plate. Furthermore, the fire pit base according to claim 11 is characterized in that, in the fire pit base described in claim 2, multiple flat plates are installed to allow multiple cooking devices to be arranged intermittently in multiple stages, enabling multiple types of cooking to be performed simultaneously. [Effects of the Invention]

[0008] As described above, the fire pit base according to claim 1 of the present invention comprises at least two flat side plates, at least one flat back plate, and at least one flat top plate. The back plate has vertical horizontal windows formed on its left and right side edges, and horizontal horizontal windows formed on the inside of its left and right side edges. The side plates have L-shaped hooks at their rear edges and inverted L-shaped hooks at their front edges. The top plate has tongue-shaped insertion parts on its left and right rear edges, and T-shaped locking parts at its front left and right edges. The design involves engaging the vertical horizontal window of the back panel with the L-shaped hooks of the two side panels to form a U-shaped frame in plan view. The tongue-shaped insertion part of the plan panel is inserted into the horizontal horizontal window of the back panel, and the T-shaped locking part of the plan panel is dropped into the inverted L-shaped hook of the side panel to engage. This restricts the expansion of the two side panels of the U-shaped frame in plan view to the left and right. As a result, the interior of the fire pit base is open to the front, and a configuration that allows for securing multiple fire sources and cooking multiple dishes simultaneously can be provided with a simple structure and simple operation. Furthermore, according to the fire pit base of claim 2 of the present invention, in the fire pit base described in claim 1, multiple horizontal windows are provided in the vertical direction on the back plate, and multiple inverted L-shaped hooks are also provided in the vertical direction on the side plate. By using the multiple horizontal windows and multiple inverted L-shaped hooks, any number of planar plates for any purpose can be attached to the U-shaped frame in plan view, which consists of the back plate and the side plate. This provides a configuration that allows for securing multiple fire sources and cooking multiple dishes simultaneously, with a simpler configuration and simpler operation. Furthermore, according to the fire pit base of claim 3 of the present invention, in the fire pit base described in claim 1, two vertical horizontal windows are provided on the left and right side edges of the back plate, alternatingly on the left and right sides, and four L-shaped parts are provided vertically on the rear edge of the side plate. The back plate is placed on both the left and right sides of the side plate, and two of the four L-shaped parts of the side plate are used to connect with the back plate on both the left and right sides. By connecting the above configuration in the left and right directions, the U-shaped frame in plan view can be connected horizontally, thus providing a configuration that allows for the simultaneous cooking of many more dishes with a simple configuration and simple operation. Furthermore, according to the bonfire stand base of claim 4 of the present invention, in the bonfire stand base described in claim 1, the flat plate is provided with a straight-line opening for attaching another plate in an upright position, so that the front side can be partially or completely closed off by the other plate. Furthermore, according to the fire pit base of claim 5 of the present invention, in the fire pit base described in claim 4, the other plate is a different flat plate from the flat plate, so an appropriate member can be selected as the other plate depending on the application. Furthermore, according to the fire pit base of claim 6 of the present invention, in the fire pit base described in claim 5, the other plate is a plate for a small fire window, so a fire pit base with a small fire window can be constructed with a simple structure and simple work. Furthermore, according to the fire pit base of claim 7 of the present invention, in the fire pit base described in claim 1, an engaging portion for attaching another plate is provided at the upper end of the back plate, so by installing the other plate at the upper end of the back plate, additional functionality can be added with a simple configuration. Furthermore, according to the fire pit base of claim 8 of the present invention, in the fire pit base described in claim 1, an engaging portion for attaching another plate is provided at the upper end of the side plate, so by installing the other plate at the upper end of the side plate, additional functionality can be added with a simple configuration. Furthermore, according to the bonfire stand base of claim 9 of the present invention, in the bonfire stand base described in claim 7 or claim 8, the other board is a board for a small bonfire window, a board for a crossbeam, or a board for securing a shelf, so the functions of a small bonfire window, a crossbeam, or a shelf can be added with a simple configuration. Furthermore, according to the bonfire stand base of claim 10 of the present invention, in the bonfire stand base described in claim 2, the flat plate is a support plate with a U-shape in plan view and an opening on the front side, and the support plate is attached by inserting the tongue-shaped part into a horizontal window provided in the lowest vertical area of ​​the rear plate and dropping the T-shaped part into an inverted L-shaped part provided in the lowest vertical area of ​​the side plate and engaging them, and since a fire pit can be placed from the front side within the U-shape in plan view of the support plate, the function of being able to place the fire pit in the lowest area can be added with a simple configuration. Furthermore, according to the fire pit base of claim 11, by installing multiple flat plates in the fire pit base of claim 2, multiple cooking devices can be arranged intermittently in multiple stages, allowing for simultaneous cooking of multiple types of food, thus enabling efficient cooking of multiple types of food. [Brief explanation of the drawing]

[0009] [Figure 1] This figure shows a first embodiment of the present invention, a perspective view of the fire pit base viewed from the front. [Figure 2] This figure shows a first embodiment of the present invention, a perspective view of the fire pit base seen from the rear. [Figure 3] This figure shows a first embodiment of the present invention, and is an exploded perspective view of the fire pit base. [Figure 4] This figure shows a side panel, illustrating a first embodiment of the present invention. [Figure 5] This figure shows a first embodiment of the present invention, specifically a rear panel. [Figure 6] This figure shows a fixing plate, illustrating a first embodiment of the present invention. [Figure 7] This figure shows a flat plate, illustrating a first embodiment of the present invention. [Figure 8] A view showing the first embodiment of the present invention, where Fig. 8(a) is an enlarged view of the VIIIa part in Fig. 2, and Fig. 8(b) is an enlarged view of the VIIIb part in Fig. 1. [Figure 9] A view showing the first embodiment of the present invention, which is a perspective view of a fire pit base with the height position of the flat plate changed, viewed from the front. [Figure 10] A view showing the second embodiment of the present invention, which is a perspective view of a fire pit base, viewed from the front. [Figure 11] A view showing the second embodiment of the present invention, which is an exploded perspective view of a fire pit base. [Figure 12] A view showing the second embodiment of the present invention, which is a view showing a flat plate. [Figure 13] A view showing the second embodiment of the present invention, which is a perspective view of another usage example of a fire pit base, viewed from the front. [Figure 14] A view showing the third embodiment of the present invention, which is a perspective view of a fire pit base, viewed from the front. [Figure 15] A view showing the third embodiment of the present invention, which is an exploded perspective view of a fire pit base. [Figure 16] A view showing the third embodiment of the present invention, which is a view showing a flat plate. [Figure 17] A view showing the fourth embodiment of the present invention, which is a perspective view of a fire pit base, viewed from the front. [Figure 18] A view showing the fourth embodiment of the present invention, which is an exploded perspective view of a fire pit base. [Figure 19] A view showing the fourth embodiment of the present invention, where Fig. 19(a) is a view showing a flat plate, and Fig. 19(b) is a view showing a crossbeam plate. [Figure 20] A view showing the fifth embodiment of the present invention, which is a perspective view of a fire pit base, viewed from the front. [Figure 21] A view showing the fifth embodiment of the present invention, which is a perspective view of a fire pit base, viewed from the rear. [Figure 22] A view showing the fifth embodiment of the present invention, which is an exploded perspective view of a fire pit base. [Figure 23] The figure shows a fifth embodiment of the present invention, where Figure 23(a) is a plan view of the fire pit base and Figure 23(b) is a cross-sectional view of Figure 23(a) taken along line XXIIIb-XXIIIb. [Figure 24] This figure shows a fifth embodiment of the present invention, specifically a shelf board fastening plate. [Figure 25] This figure shows a sixth embodiment of the present invention, a perspective view of the fire pit base viewed from the front. [Figure 26] This figure shows a sixth embodiment of the present invention, and is an exploded perspective view of the fire pit base. [Figure 27] This figure shows a seventh embodiment of the present invention, a perspective view of the fire pit base viewed from the front. [Figure 28] This figure shows a seventh embodiment of the present invention, a perspective view of the fire pit base seen from the rear. [Figure 29] This figure shows a seventh embodiment of the present invention, and is an exploded perspective view of the fire pit base. [Figure 30] This figure shows a seventh embodiment of the present invention, and is an enlarged view of the XXX portion of Figure 28. [Figure 31] This figure shows a seventh embodiment of the present invention, a perspective view from the front of a fire pit base in which the height position of the flat plate has been changed. [Figure 32] This figure shows an eighth embodiment of the present invention, a perspective view of the fire pit base viewed from the front. [Figure 33] This figure shows an eighth embodiment of the present invention, and is an exploded perspective view of the fire pit base. [Figure 34] This figure shows a ninth embodiment of the present invention, a perspective view of the fire pit base viewed from the front. [Figure 35] This figure shows a tenth embodiment of the present invention, a perspective view of the fire pit base viewed from the front. [Figure 36] This figure shows a tenth embodiment of the present invention, specifically a panel for a small window used for a bonfire. [Figure 37] This figure shows an eleventh embodiment of the present invention, a perspective view of the fire pit base viewed from the front. [Figure 38] This figure shows an eleventh embodiment of the present invention, and is an exploded perspective view of the fire pit base. [Modes for carrying out the invention]

[0010] Hereinafter, a first embodiment of the present invention will be described with reference to Figures 1 to 9. As shown in Figures 1 to 3, the bonfire stand base 1 according to this first embodiment consists of two side plates 3, one back plate 5, one support plate 7 as a flat plate, and one cooking plate 9 as a flat plate.

[0011] As shown in Figure 4, the front edge (right edge in Figure 4) of the side plate 3 has three sets of three inverted L-shaped hooks 11 and two sets of three inverted L-shaped hooks 13, for a total of 15 hooks, arranged in a predetermined vertical position in Figure 4. An engaging recess 15 is formed on the upper side of the inverted L-shaped hook 11 in Figure 4, and an engaging recess 17 is also formed on the upper side of the inverted L-shaped hook 13 in Figure 4. The positions of the engaging recesses 15 and 17 in the left-right direction in Figure 4 are the same. Furthermore, four L-shaped hook portions 19 are provided on the rear edge (left edge in Figure 4) of the side plate 3 in a predetermined arrangement in the vertical direction in Figure 4. An engagement recess 21 is provided on the upper side of the L-shaped hook portion 19 in Figure 4. Furthermore, four engaging recesses 23 are provided on the upper edge of the side plate 3 shown in Figure 4.

[0012] As shown in Figure 5, the left edge of the back panel 5 in Figure 5 is provided with two vertically oriented windows 31, and the right edge of the back panel 5 in Figure 5 is provided with two vertically oriented windows 33. The vertically oriented windows 31 and 33 are arranged alternately. Furthermore, the rear panel 5 shown in Figure 5 is provided with 14 horizontal windows 35 arranged vertically on each side, for a total of 28 windows. Furthermore, four engagement recesses 37 are provided near the center of the upper edge of the back panel 5 in Figure 5. In addition, wide engagement recesses 39 are provided on both the left and right ends of the upper edge of the back panel 5 in Figure 5, and groove-shaped engagement recesses 41 are provided in the center of the bottom (lower side in Figure 5) of each of the engagement recesses 39.

[0013] As shown in Figure 6, the support plate 7 is roughly U-shaped with an opening on the front side (lower side in Figure 6), and tongue-shaped insertion parts 43 are formed on both the left and right sides of the rear edge (upper edge in Figure 6). In addition, T-shaped locking parts 45 are provided on the left and right front edges of the support plate 7 (the left and right edges on the lower side in Figure 6). Furthermore, two shelf-fastening plate penetrations 47 are provided on each of the left and right edges of the support plate 7 shown in Figure 6. Furthermore, tongue-shaped recesses 49 for insertion parts are provided on both the left and right sides of the upper inner side of the support plate 7 in Figure 6, and tongue-shaped recesses 51 for insertion parts are also provided on both the left and right sides of the lower inner side of the support plate 7 in Figure 6.

[0014] As shown in Figure 7, tongue-shaped insertion portions 53 are formed on both the left and right sides of the rear edge (upper edge in Figure 7) of the cooking plate 9, and a tongue-shaped insertion portion 55 is also formed in the center of the rear edge (upper edge in Figure 7) in the left-right direction in Figure 7. In addition, T-shaped locking portions 57 are provided on the left and right front edges (lower left and right edges in Figure 7) of the cooking plate 9. Furthermore, two groove-shaped engaging recesses 59 are provided at the center of the lower edge of the cooking plate 9 in Figure 7, and one groove-shaped engaging recess 61 is provided at each of the left and right ends of the lower edge of the cooking plate 9 in Figure 7. Additionally, engaging recesses 63 are provided on the lower edge of the cooking plate 9 in Figure 7, between the engaging recesses 59 and 61. A groove-shaped engaging recess 65 is provided at the bottom (upper side in Figure 7) of the engaging recess 63. Furthermore, engaging recesses 67 are provided on the lower edge of the cooking plate 9 in Figure 7, outside of the engaging recesses 61. A tongue-shaped insertion portion 60 is provided between the engagement recesses 63. The groove-shaped engagement recess 59 is provided on the tongue-shaped insertion portion 60. A tongue-shaped insertion portion 62 is provided between the engagement recess 63 and the adjacent engagement recess 67. The groove-shaped engagement recess 61 is provided on the tongue-shaped insertion portion 62. Furthermore, on the front side (lower side in Figure 7) of the cooking plate 9, a straight-line window 66 is provided on both the left and right sides. In addition, one other straight-line window 68 is provided between the two of the straight-line windows 66. Furthermore, multiple through-holes 69 are formed in the inner portion of the cooking plate 9.

[0015] As shown in Figures 1 to 3, the fire pit base 1 is constructed by combining two side plates 3, one back plate 5, one support plate 7, and one cooking plate 9. As shown in Figures 2 and 8(a), the L-shaped hook portion 19 of the side plate 3 engages with the vertical horizontal window 31 of the back plate 5, so that the two side plates 3 are attached to both sides of the back plate 5 in the left-right direction in Figure 1, forming a U-shaped frame 71 in plan view. The support plate 7 is attached to the lower side of the U-shaped frame 71 in Figure 1 to reinforce the U-shaped frame 71 in plan view. As shown in Figure 2, the tongue-shaped insertion portion 43 of the support plate 7 is inserted into the second horizontal horizontal window 35 from the bottom in Figure 2 of the back plate 5. As shown in Figures 1 and 8(b), the T-shaped locking portion 45 of the support plate 7 is engaged with the engaging recess 15 of the second inverted L-shaped hook portion 11 from the bottom in Figure 1 of the side plate 3.

[0016] Furthermore, the cooking plate 9 is positioned on the upper side of the support plate 7 in Figure 1. As shown in Figure 2, the tongue-shaped insertion portion 53 of the cooking plate 9 is inserted into the sixth horizontal window 35 from the bottom in Figure 2 of the back plate 5, and the tip of the tongue-shaped insertion portion 55 of the cooking plate 9 abuts against the back plate 5. As shown in Figures 1 and 8(b), the T-shaped locking portion 57 of the cooking plate 9 is engaged with the engaging recess 17 of the sixth inverted L-shaped hook portion 13 from the bottom in Figure 1 of the side plate 3.

[0017] As shown in Figure 1, a gas burner 81 or the like, which serves as the source of the fire, is installed in the lower part of Figure 1 within the fire pit base 1, passing through the center of the support plate 7. Cooking utensils such as a mess kit 83 are placed on the cooking plate 9 mentioned above.

[0018] Furthermore, as shown in Figure 9, the position of the cooking plate 9 in the height direction (up and down direction in Figure 1) can be set arbitrarily. In Figure 9, the cooking plate 9 is installed on the 13th level from the bottom. In this case, the pot 84 is placed on the cooking plate 9 mentioned above.

[0019] Next, the operation according to this first embodiment will be described. The above-mentioned fire pit base 1 consists of two side panels 3, one back panel 5, one support panel 7, and one cooking panel 9. Therefore, when transporting or storing, for example, the side panels 3, back panel 5, support panel 7, and cooking panel 9 can be stacked, and when in use, they can be assembled and used as the fire pit base 1. The L-shaped hook portion 19 of the side plate 3 engages with the vertical straight window 31 of the back plate 5, thereby attaching two side plates 3 to both sides of the back plate 5 in the left-right direction in Figure 1, forming a U-shaped frame 71 in plan view. The tongue-shaped insertion portion 43 of the support plate 7 is inserted into the horizontal straight window 35 of the back plate 5, and the T-shaped locking portion 45 of the support plate 7 engages with the engaging recess 15 of the inverted L-shaped hook portion 11 of the side plate 3, thereby attaching the support plate 7. The tongue-shaped insertion portion 53 of the cooking plate 9 is inserted into the horizontal straight window 35 of the back plate 5, and the T-shaped locking portion 57 of the cooking plate 9 engages with the engaging recess 15 of the inverted L-shaped hook portion 11 of the side plate 3.

[0020] A gas burner 81 or the like is placed inside the fire pit base 1, and cooking utensils such as a mess kit 83 are placed on the cooking plate 9 to cook.

[0021] Next, the effects of this first embodiment will be described. First, the inadvertent expansion of the left and right side plates 3, 3 in the U-shaped frame 71 in plan view can be effectively restricted. This is because, in the U-shaped frame 71 in plan view, the tongue-shaped insertion portion 43 of the support plate 7 is inserted into the second horizontal window 35 from the bottom in Figure 2 of the back plate 5, and the T-shaped locking portion 45 of the support plate 7 engages with the engaging recess 15 of the second inverted L-shaped hook portion 11 from the bottom in Figure 1 of the side plate 3, thereby firmly supporting the U-shaped frame 71 in plan view. In particular, the neck portion of the T-shaped locking portion 45 is dropped into and engaged with the engaging recess 15 of the inverted L-shaped hook portion 11, thereby effectively restricting the inadvertent expansion of the left and right side plates 3, 3. Furthermore, the above effect is doubled when the tongue-shaped insertion portion 53 of the cooking plate 9 is inserted into the horizontal window 35 of the back plate 5 and the T-shaped locking portion 57 of the cooking plate 9 engages with the engaging recess 15 of the inverted L-shaped hook portion 11 of the side plate 3, thereby installing the cooking plate 9 on the U-shaped frame 71 in plan view. The interior of the fire pit base 1 is open to the front, and a fire source can be secured below the fire pit base 1 to allow cooking by placing food on the cooking plate 9 or other items to be heated, such as pots, on the cooking plate 9. This configuration can be provided with a simple structure and simple operation.

[0022] Furthermore, the horizontal window 35 of the back panel 5 is provided in multiple rows in the vertical direction in Figure 5, and the inverted L-shaped hook portions 11 and 13 of the side panel 3 are also provided in multiple rows in the vertical direction in Figure 4, so the vertical position of the cooking panel 9 can be set arbitrarily. Furthermore, the above-mentioned fire pit base 1 is composed of two side panels 3, one back panel 5, one support panel 7, and one cooking panel 9. Therefore, it is easy to transport and store. In particular, all parts fit within the rectangular area in which the side panels 3 are placed, making it highly portable and easy to transport, for example, on a two-wheeled vehicle.

[0023] Next, a second embodiment of the present invention will be described with reference to Figures 10 to 13. As shown in Figures 10 and 11, the fire pit base 101 according to this second embodiment has substantially the same configuration as the fire pit base 1 according to the first embodiment, but two cooking plates 9 and a fire source plate 103 as a flat plate are installed on the U-shaped frame 71 in plan view.

[0024] As shown in Figure 12, the heat source plate 103, like the cooking plate 9, has tongue-shaped insertion portions 105 formed on both the left and right sides of its rear edge (upper edge in Figure 12) in Figure 7. In addition, T-shaped locking portions 107 are provided on the left and right front edges (lower left and right edges in Figure 12) of the cooking plate 9. Furthermore, engagement recesses 109 are provided on both the left and right sides of the front edge (lower edge in Figure 12) of the fire source plate 103. Additionally, engagement recesses 111 are provided on both the left and right sides of the front edge (lower edge in Figure 12) of the fire source plate 103, inside the engagement recesses 109. A tongue-shaped insertion portion 108 is provided between the engagement recesses 111. Furthermore, a tongue-shaped insertion portion 110 is provided between the engagement recess 111 and the adjacent engagement recess 109.

[0025] The heat source plate 103 is installed in the same way as the cooking plate 9, with the tongue-shaped insertion portion 105 inserted into the horizontal window 35 of the back plate 5, and the T-shaped locking portion 107 engaging with the engagement recess 15 of the inverted L-shaped hook portion 11 of the side plate 3.

[0026] In the above-mentioned fire pit base 101, as shown in Figure 10, the cooking plate 9 is installed on the 4th and 13th levels from the bottom in Figure 10. Also, the fire source plate 103 is installed on the 10th level from the bottom in Figure 10. Furthermore, in the case shown in Figure 13, the cooking plate 9 is installed on the second and eleventh shelves from the bottom in Figure 13. Also, the heat source plate 103 is installed on the eighth shelf from the bottom in Figure 10.

[0027] Next, the operation according to this second embodiment will be described. The above-mentioned fire pit base 101, like the fire pit base 1 according to the first embodiment, is transported and stored in a stacked state after being disassembled into the side plate 3, back plate 5, support plate 7, cooking plate 9, and fire source plate 103, and is used in a combined state.

[0028] Within the fire pit base 101 described above, charcoal 121 is placed as a first fire source below the lower cooking plate 9 in Figure 10, and a plate 123 is placed on the lower cooking plate 9 in Figure 10 as a first cooking utensil, and cooking is performed using the plate 123. At the same time, charcoal 125 is placed on the fire source plate 103 as a second fire source, and a pot 127 is placed on the upper cooking plate 9 in Figure 10 as a second cooking utensil, and cooking is performed using the pot 127. Furthermore, as shown in Figure 13, a solid fuel 131 may be placed on the upper cooking plate 9 in Figure 13, and a pizza grill 133 containing a pizza (not shown) may be placed on top of the fire source plate 103 to cook the pizza (not shown).

[0029] Next, the effects of this second embodiment will be explained. Multiple heat sources can be secured on multiple levels, allowing for simultaneous cooking of multiple dishes. Specifically, in the bonfire base 101 of this second embodiment, a heat source plate 103 for setting a second heat source is installed above the charcoal 121, which serves as the first heat source, within the U-shaped frame 71 in plan view. A cooking plate 9 for setting a plate 123, which serves as the first cooking utensil, is installed below the heat source plate 103. Additionally, a cooking plate 9 for setting a pot 127, which serves as the second cooking utensil, is installed above the heat source plate 103. Therefore, cooking using the plate 123 and the pot 127 can be performed simultaneously. Furthermore, the vertical positions of the cooking plate 9 and the heat source plate 103 can be adjusted as needed, thereby allowing for appropriate adjustment of the heat output and the airflow contributing to combustion. Furthermore, such a configuration can be provided with simple operations.

[0030] Next, a third embodiment of the present invention will be described with reference to Figures 14 to 16. As shown in Figures 14 and 15, the fire pit base 201 according to this third embodiment has substantially the same configuration as the fire pit base 101 according to the second embodiment, but is further equipped with a cooking plate 203 as a flat plate.

[0031] As shown in Figure 16, the cooking plate 203, like the cooking plate 9, has tongue-shaped insertion portions 205 formed on both the left and right sides of its rear edge (upper edge in Figure 16), and T-shaped locking portions 207 are provided on both the left and right front edges (lower edges on both sides in Figure 16). Furthermore, on the front side (lower side in Figure 16) of the cooking plate 203, a straight-line window 209 is provided on both the left and right sides. Another straight-line window 211 is provided between the two straight-line windows 209. In addition, end-through slits 212 are provided on both edges of the side (left and right direction in Figure 16) of the cooking plate 203. The vertical position of the end-through slits 212 in Figure 16 is the same as that of the straight-line windows 209 and 211. Furthermore, in the center of the cooking plate 203, there are two rows of slits 213 arranged horizontally in the left-right direction in Figure 16, and multiple slits arranged vertically in the right-left direction in Figure 16.

[0032] The cooking plate 203 is installed with its tongue-shaped insertion portion 205 engaging with the engagement recess 39 at the upper edge of the back plate 5 in Figure 14, and its T-shaped locking portion 207 engaging with the engagement recess 15 of the uppermost inverted L-shaped hook portion 11 in Figure 14 of the side plate 3.

[0033] The fire pit base 201 described above also provides the same functions and effects as the fire pit base 101 according to the second embodiment. In addition, a cooking plate 203 is also installed, so as shown in Figure 14, a pot 221 can be placed on the cooking plate 203 and cooking can be performed.

[0034] Next, a fourth embodiment of the present invention will be described with reference to Figures 17 to 20. As shown in Figures 17 and 18, the bonfire stand base 301 according to this fourth embodiment consists of two side plates 3, one back plate 5, one fire source plate 303 as a flat plate, two cooking plates 9 as flat plates, and two crossbeam plates 305.

[0035] Similar to the first embodiment described above, the U-shaped frame 71 in plan view is constructed from the two side panels 3 and the one back panel 5. As shown in Figure 19(a), the heat source plate 303, similar to the cooking plate 203 in the third embodiment, has tongue-shaped insertion portions 307 formed on both the left and right sides of its rear edge (upper edge in Figure 19(a)) in Figure 16, and T-shaped locking portions 309 are provided on both the left and right front edges (lower left and right edges in Figure 19(a)). Furthermore, on the front side (lower side in Figure 19(a)) of the fire source plate 303, a single horizontal window 311 is provided on both the left and right sides. In addition, another single horizontal window 313 is provided between the two single horizontal windows 311. Furthermore, end-through slits 310 are provided on the front side (lower side in Figure 19(a)) and side edge (left-right direction in Figure 19(a)) of the fire source plate 303. The vertical position of the end-through slits 310 in Figure 19(a) is the same as that of the straight-line windows 311 and 313. Furthermore, on the rear side (upper side in Figure 19(a)) of the fire source plate 303, a straight-line window 314 is provided on both the left and right sides. In addition, another straight-line window 315 is provided between the two straight-line windows 314. Furthermore, end-through slits 316 are provided on the rear side (upper side in Figure 19(a)) and side edge (left-right direction in Figure 19(a)) of the fire source plate 303. The vertical position of the end-through slits 316 in Figure 19 is the same as that of the straight-line windows 314 and 315. Furthermore, two through holes 317 are provided in the center of the fire source plate 303, arranged vertically in Figure 19(a). Furthermore, two shelf board fastening plate penetrations 319 are provided on each of the left and right edges of the fire source plate 303 shown in Figure 19(a).

[0036] The above-mentioned fire source plate 303 is installed by inserting the tongue-shaped insertion portion 307 into the horizontal window 35 at the very bottom of the back plate 5 in Figure 17, and engaging the T-shaped locking portion 309 with the engaging recess 15 of the inverted L-shaped hook portion 11 at the very bottom of Figure 17. One of the two cooking plates 9 is installed on the second row from the bottom in Figure 17, and the other of the two cooking plates 9 is installed upright on the front side of the U-shaped frame 71 in plan view (lower left side in Figure 17). The other of the two cooking plates 9 is installed by engaging the T-shaped locking portion 57 with the engagement recess 23 on the frontmost side (lower left side in Figure 17) of the side plate 3, inserting the tongue-shaped insertion portion 53 into the straight-line window 66 of one of the two cooking plates 9, and inserting the tongue-shaped insertion portion 55 into the straight-line window 68 of one of the two cooking plates 9.

[0037] As shown in Figure 19(b), the crossbeam plate 305 has two mounting engagement grooves 321 formed on both the left and right ends in Figure 19(b), and on the lower side in Figure 19(b). In addition, a cooking utensil engagement recess 323 is provided on the upper side of the crossbeam plate 305 in Figure 19(b). The crossbeam plate 305 is installed across the back panel 5 and the other of the two cooking panels 9. One of the two mounting engagement grooves 321 on the inside of the crossbeam plate 305 engages with one of the engagement recesses 37 on the back panel 5, and the other of the two mounting engagement grooves 321 on the inside of the crossbeam plate 305 engages with an engagement recess 65 on the cooking panel 9 that is located opposite to the engagement recess 37 to which one of the mounting engagement grooves 321 on the inside of the crossbeam plate 305 is engaged.

[0038] Furthermore, as shown in Figure 20, one of the two mounting engagement grooves 321 on the inside of the crossbeam plate 305 engages with one of the engagement recesses 41 of the back plate 5, and the other of the two mounting engagement grooves 321 on the inside of the crossbeam plate 305 engages with an engagement recess 61 of the cooking plate 9 that is located opposite to the engagement recess 41 to which one of the two mounting engagement grooves 321 on the inside of the crossbeam plate 305 is engaged. In this case, the distance between the crossbeam plates 305 is greater in the case shown in Figure 20 than in the case shown in Figure 19.

[0039] Next, the operation according to this fourth embodiment will be described. In this case as well, similar to the first and second embodiments, the bonfire base 301 is disassembled into two side panels 3, one back panel 5, one fire source panel 303 as a flat panel, two cooking panels 9 as flat panels, and two crossbeam panels 305 for storage and transport.

[0040] When using the above-mentioned fire pit base 301, for example, firewood 331 is placed on the other of the two cooking plates 9 as a fire source and placed inside the fire pit base 301, and cooking is performed by placing skewers 333 or the like, which are cooking utensils on which food is impaled, across the two crossbeam plates 305.

[0041] This fourth embodiment also provides the same effects as the first and second embodiments.

[0042] Next, a fifth embodiment of the present invention will be described with reference to Figures 21 to 24. As shown in Figures 21 to 23, the bonfire stand base 401 according to this fifth embodiment consists of two side plates 3, one back plate 5, one support plate 7 as a flat plate, two fire source plates 103 as flat plates, one fire source plate 203 as a flat plate, and four shelf plate securing plates 403.

[0043] Similar to the first embodiment, the U-shaped frame 71 in plan view is constructed from the two side panels 3 and the one back panel 5. The support plate 7 is also installed in the lowest position in Figure 21, similar to the first embodiment. The two fire source plates 103 are positioned vertically (up and down in Figure 21) and installed at both ends in the front-to-back direction. One of the two fire source plates 103 is installed by engaging the T-shaped locking portion 107 with the engagement recess 23 on the frontmost side (lower left side in Figure 21) of the side plate 3, and inserting the tongue-shaped insertion portion 105 into the tongue-shaped insertion portion recess 49 on the front side (lower left side in Figure 21) of the support plate 7. In addition, the left and right ends on the upper end side of one of the two fire source plates 103 are positioned to pass through the end-through slits 310. One of the two fire source plates 103 functions as a removable cover on the front side of the bonfire stand base 401. The other of the two fire source plates 103 is installed by engaging the T-shaped locking portion 107 with the rearmost engagement recess 23 (upper right side in Figure 21) of the side plate 3, and inserting the tongue-shaped insertion portion 105 into the tongue-shaped insertion portion recess 51 (lower left side in Figure 21) of the support plate 7. Furthermore, the left and right ends of the other of the two fire source plates 103 are positioned to pass through the end-penetrating slits 316 in Figure 21.

[0044] The shelf-retaining plate 403 is, for example, a plate-shaped member that extends vertically in Figure 24, as shown in Figure 24. The upper end of the shelf-retaining plate 403 in Figure 24 is folded back to the lower side in Figure 24 to form a hook portion 405. Multiple shelf-supporting protrusions 407 are formed along the entire length of the shelf-retaining plate 403, protruding in the opposite direction to the folding direction of the hook portion 405 (to the right in Figure 24).

[0045] The shelf-retaining plate 403 is attached by engaging the hook portion 405 with two engagement recesses 23 located on the inside of the engagement recess 23 of the side plate 3, with the shelf-supporting projection 407 facing inward in a plan view of the U-shaped frame 71. As shown in Figure 23(b), the lower end side (lower side in Figure 23) of the shelf-retaining plate 403 passes through the shelf-retaining plate penetration portion 47 of the support plate 7.

[0046] One fire source plate 203, which serves as a flat plate, is installed at the very top in Figure 21 as the upper lid of the fire pit base 401. The T-shaped locking portion 309 of the fire source plate 203 engages with the engaging recess 15 of the uppermost inverted L-shaped hook portion 11 of the side plate 3 in Figure 21, and the tongue-shaped insertion portion 307 of the fire source plate 303 engages with the engaging recess 39 of the back plate 5. In addition, the tongue-shaped insertion portion 105 of the fire source plate 103, which is installed upright on the front side (lower left side in Figure 21), is inserted into the corresponding straight-line window 311 of the fire source plate 303, and the tongue-shaped insertion portion 105 of the fire source plate 103, which is installed upright on the rear side (upper right side in Figure 21), is inserted into the corresponding straight-line window 314 of the fire source plate 303. The fire source plate 303 is detachable, and by removing the fire source plate 303 and one of the two fire source plates 103, the gas burner 411 can be installed and removed from the fire pit base 401 as shown in Figure 23(b), and the plate 415 and net 413 can be installed and removed. The plate 415 and net 413 are supported by the shelf support protrusions 407 of the shelf stopper plate 403.

[0047] Next, the operation according to this fifth embodiment will be described. In this case as well, similar to the first and second embodiments, the bonfire stand base 401 is disassembled into two side plates 3, one back plate 5, one support plate 7 as a flat plate, two fire source plates 103 as flat plates, one fire source plate 303 as a flat plate, and four shelf plate securing plates 403 for storage and transport.

[0048] The above-mentioned fire pit base 401 is modified by removing the fire source plate 303 and one of the two fire source plates 103, removing the gas burner 411 from the inside of the fire pit base 401, and installing and removing the shelf and net for placing the plate 415 and net 413. Furthermore, cooking is performed with one of the two fire source plates 103 installed as a front cover and the fire source plate 303 installed as a lid. Furthermore, the fire pit base 401 is enclosed on the front, back, top, and sides by the fire source plate 303, one of the two fire source plates 103, two side plates 3, and one back plate 5, so it can also be used, for example, as a steamer.

[0049] This fifth embodiment also provides the same effects as the first and second embodiments.

[0050] Next, a sixth embodiment of the present invention will be described with reference to Figures 25 and 26. As shown in Figures 25 and 26, the bonfire stand base 501 according to this sixth embodiment consists of two side plates 3, one back plate 5, two cooking plates 9 as a flat surface plate, and one cooking plate 203.

[0051] The two side panels 3, the one back panel 5, and the two cooking panels 9 serving as flat panels are assembled in the same manner as in the fourth embodiment. In the same manner as in the third embodiment described above, the single cooking plate 203 is installed on the uppermost side of the bonfire base 501 in Figure 25. At this time, of the two cooking plates 9, the tongue-shaped insertion portion 55 of the one installed in an upright position is inserted into the straight-line window 211 of the cooking plate 203, and the tongue-shaped insertion portion 53 is inserted into the corresponding straight-line window 209 of the cooking plate 203.

[0052] In this sixth embodiment, the same functions and effects as those of the fourth embodiment are achieved.

[0053] Next, a seventh embodiment of the present invention will be described with reference to Figures 27 to 31. As shown in Figures 27 to 29, the bonfire stand base 601 according to this seventh embodiment consists of three side plates 3, two back plates 5, one fire source plate 103 as a flat plate, one cooking plate 203 as a flat plate, three cooking plates 9 as flat plates, and two support plates 7.

[0054] The double-frame structure 603 is constructed from the three side panels 3 and two back panels 5 described above. The double-frame structure 603 is constructed by placing the back panels 5 on both the left and right sides of the rear end (upper right side in Figure 27) of the central side panel 3, placing the side panel 3 on the right side of the back panel 5 in Figure 27, and placing the side panel 3 on the left side of the back panel 5 in Figure 27. As shown in Figure 30, the vertical horizontal window 31 of the back panel 5 on the left side in Figure 30 is engaged with the corresponding L-shaped hook portion 19 of the central side panel 3, and the vertical horizontal window 33 of the back panel 5 on the right side in Figure 30 is engaged with the remaining L-shaped hook portion 19 of the central side panel 3. In Figure 28, the leftmost side panel 3 is installed by engaging the L-shaped hook portion 19 with the vertical straight window 33 of the left rear panel 5 in Figure 28, and the rightmost side panel 3 is installed by engaging the L-shaped hook portion 19 with the vertical straight window 31 of the right rear panel 5 in Figure 28.

[0055] In the right side of the double-frame 603 shown in Figure 27, one cooking plate 203, two cooking plates 9, one heat source plate 103, and one support plate 7 are installed in the same manner as in the third embodiment. Also, in the left side of the double-frame 603 shown in Figure 27, one cooking plate 9 and one support plate 7 are installed in the same manner as in the first embodiment.

[0056] In this seventh embodiment, the fire pit base 601 can perform cooking in the right-hand portion of Figure 27 in the same way as the fire pit base 201 in the third embodiment, and the fire pit base 601 can perform cooking in the left-hand portion of Figure 27 in the same way as the fire pit base 1 in the first embodiment. Furthermore, the above-mentioned fire pit base 601 can be easily stored and transported by disassembling it into three side panels, two back panels, one fire source panel, one cooking panel, three cooking panels, and two support panels. Furthermore, as shown in Figure 31, similar to the bonfire base 1 according to the first embodiment, it is also possible to arbitrarily select the height position of the cooking plate 9 in Figure 31.

[0057] Next, an eighth embodiment of the present invention will be described with reference to Figures 32 and 33. The fire pit base 701 according to this eighth embodiment has substantially the same configuration as the fire pit base 601 according to the seventh embodiment, but the right side in Figure 32 has the same structure as the fire pit base 101 according to the second embodiment, and the left side in Figure 32 has the same structure as the fire pit base 401 according to the fifth embodiment.

[0058] The fire pit base 701 according to this eighth embodiment allows for cooking on the right side of Figure 32 in the same way as the fire pit base 101 according to the second embodiment, and allows for cooking on the left side of Figure 32 in the same way as the fire pit base 401 according to the fifth embodiment.

[0059] Next, a ninth embodiment of the present invention will be described with reference to Figure 34. The fire pit base 801 according to this ninth embodiment has substantially the same configuration as the fire pit base 601 according to the seventh embodiment, but the right side of Figure 34 has the same structure as the fire pit base 101 according to the second embodiment, and the left side of Figure 34 has the same structure as the fire pit base 301 according to the fourth embodiment.

[0060] The fire pit base 801 according to this ninth embodiment allows for cooking on the right side of Figure 34 in the same way as the fire pit base 101 according to the second embodiment, and allows for cooking on the left side of Figure 34 in the same way as the fire pit base 301 according to the fourth embodiment.

[0061] Next, a tenth embodiment of the present invention will be described with reference to Figures 35 and 36. As shown in Figure 35, the bonfire stand base 901 according to this tenth embodiment has substantially the same configuration as the bonfire stand base 201 according to the third embodiment, but is further equipped with a small bonfire window plate 903.

[0062] As shown in Figure 36, tongue-shaped insertion portions 905 are formed on both the left and right sides of the lower edge of the bonfire window plate 903 in Figure 36, as shown in Figure 37. In addition, hook-shaped locking portions 907 are provided on the left and right edges of the upper edge of the bonfire window plate 903 in Figure 36, which are folded back downwards as shown in Figure 37. Furthermore, two groove-shaped engaging recesses 909 are provided at the center of the upper edge of the bonfire window plate 903 in Figure 36, and one groove-shaped engaging recess 911 is provided at each of the left and right ends of the upper edge of the bonfire window plate 903 in Figure 36. Additionally, on the upper edge of the bonfire window plate 903 in Figure 36, engaging recesses 913 are provided between the engaging recesses 909 and 911. A groove-shaped engaging recess 915 is provided at the bottom (lower side in Figure 36) of the engaging recess 913. Furthermore, on the upper edge of the bonfire window plate 903 in Figure 36, engaging recess 917 is provided outside the engaging recesses 911. Furthermore, a small window 919 is provided on the inner side of the above-mentioned bonfire window plate 903. A tongue-shaped insertion portion 921 is provided between the above-mentioned engaging recesses 913. The two groove-shaped engaging recesses 909 are provided in the tongue-shaped insertion portion 921. In addition, a tongue-shaped insertion portion 923 is provided between the above-mentioned engaging recess 913 and the adjacent engaging recess 917. The groove-shaped engaging recess 911 is provided in the tongue-shaped insertion portion 923.

[0063] The two side panels 3, one back panel 5, one support panel 7 as a flat panel, two cooking panels 9 as flat panels, and the heat source panel 103 and cooking panel 203 as flat panels are installed in the U-shaped frame 71 in plan view, as in the third embodiment, but the support panel 7 is installed on the bottom row, the cooking panels 9 are installed on the second and tenth rows from the bottom, and the heat source panel 103 is installed on the eighth row from the bottom.

[0064] The bonfire window plate 903 is installed by engaging the hook-shaped locking portion 907 with the engagement recess 23 on the frontmost side (lower left side in Figure 35) of the side plate 3, and inserting the tongue-shaped insertion portion 905 into the straight-line window 66 of the cooking plate 9 on the upper side in Figure 35. The tongue-shaped insertion portion 921 of the bonfire window plate 903 is inserted into the straight-line window 211 of the cooking plate 203, and the tongue-shaped insertion portion 923 of the bonfire window plate 903 is inserted into the corresponding straight-line window 209 of the cooking plate 203.

[0065] The fire pit base 901 according to this tenth embodiment provides the same functions and effects as the fire pit base 201 in the third embodiment, and also allows for the creation of a window on the front side (lower left side in Figure 35) of the space between the cooking plate 203 and the upper cooking plate 9 in Figure 35 using the fire pit window plate 903.

[0066] Next, an eleventh embodiment of the present invention will be described with reference to Figures 37 and 38. As shown in Figures 37 and 38, the bonfire stand base 1001 according to this eleventh embodiment consists of two side plates 3, one back plate 5, one support plate 7 as a flat plate, two fire source plates 103 as flat plates, one fire source plate 303 as a flat plate, and two crossbeam plates 305.

[0067] Similar to the fifth embodiment described above, the U-shaped frame 71 in plan view is constructed from the two side plates 3 and the one back plate 5. The support plate 7 is also installed in the lowest position in Figure 21, similar to the first embodiment described above. The two fire source plates 103 are positioned vertically (up and down in Figure 37) and installed at both ends in the front-to-back direction. One of the two fire source plates 103 functions as a removable cover on the front side of the fire pit base 401. The other of the two fire source plates 103 is installed by engaging the T-shaped locking portion 107 with the rearmost engagement recess 23 of the side plate 3 (upper right side in Figure 37), and inserting the tongue-shaped insertion portion 105 into the tongue-shaped insertion portion recess 51 on the rear side (lower left side in Figure 37) of the support plate 7. Furthermore, the left and right ends of the other of the two fire source plates 103 are positioned to pass through the end-through slits 316 in Figure 37.

[0068] The crossbeam plate 305 is installed across the two side panels 3. One of the two mounting engagement grooves 321 on the outside of the crossbeam plate 305 engages with the engagement recess 23 of one of the two side panels 3, and the other of the two mounting engagement grooves 321 on the outside of the crossbeam plate 305 engages with the engagement recess 23 of the other side panel 3.

[0069] One fire-starting plate 303, which serves as a flat surface plate, is detachably installed at the very top of Figure 37 as the upper lid of the bonfire stand base 1001.

[0070] Next, the operation according to this fifth embodiment will be described. In this case as well, similar to the first and second embodiments, the bonfire stand base 1001 is disassembled into two side plates 3, one back plate 5, one support plate 7 as a flat plate, two fire source plates 103 as flat plates, one fire source plate 303 as a flat plate, and two crossbeam plates 305 for storage and transport.

[0071] The above-mentioned fire pit base 1001 can be used to install and remove cooking utensils such as a gas burner and a plate (not shown) from inside the fire pit base 401 with the fire source plate 303 and one of the two fire source plates 103 removed. Alternatively, cooking can be performed with one of the two fire source plates 103 used as a front cover and the fire source plate 303 used as a lid. Furthermore, the fire pit base 1001 is enclosed on the front, back, top, and sides by the fire source plate 303, one of the two fire source plates 103, two side plates 3, and one back plate 5. As shown in Figure 38, it can also be used, for example, as a smoker. In that case, the food 1003 is suspended from the crossbeam plate 305. The through hole 317 in the fire source plate 303 is used when inserting a thermometer (not shown) into the fire pit base 1001.

[0072] This eleventh embodiment also provides the same effects as the first and second embodiments.

[0073] The present invention is not limited to the first to eleventh embodiments described above. There are various possibilities regarding the arrangement of cooking boards and the number and combination of boards used. Furthermore, there are various types of cooking utensils that may be used in conjunction with them. Furthermore, there are various possible shapes, numbers, and arrangements of the perforations on the cooking plate. Furthermore, the diagrammed configuration is merely an example. [Industrial applicability]

[0074] The present invention relates to a fire pit base, and more particularly to a fire pit base with an open front and a U-shaped base in plan view, which can be provided in a robust basic structure, and which allows for the simultaneous preparation of multiple cooking methods by securing multiple fire sources on different levels using this basic structure, all with a simple structure and simple operation. For example, it is suitable for a fire pit base for camping. [Explanation of Symbols]

[0075] 1. Fire pit base 3 Side plate 5 Back plate 7 Support plate (plane plate) 9 Cooking board (flat board) 11 Inverted L-shaped hook 13 Inverted L-shaped hook 19 L-shaped hook section 31 Vertical single-line window 33 Vertical single-line window 35 Horizontal window 49 Single-line window 51 Single-line window 53 Tongue-shaped insertion part 55 Tongue-shaped insertion part 66 Single-line window 68 Single-line window 71 Plane view U-shaped frame 101 Fire Pit Base 201 Fire Pit Base 209 Single-line window 211 Single-line window 301 Fire Pit Base 305 Cross beam plate 401 Fire Pit Base 501 Fire Pit Base 601 Fire Pit Base 701 Fire Pit Base 801 Fire Pit Base 901 Fire Pit Base 1001 Fire Pit Base

Claims

1. It consists of at least two flat side panels, at least one flat back panel, and at least one flat top panel. Vertical, horizontal windows are formed on the left and right side edges of the aforementioned back panel, and horizontal, horizontal windows are formed on the inside of the left and right side edges. The rear edge of the above-mentioned side plate has an L-shaped hook portion, and the front edge has an inverted L-shaped hook portion. The rear edge of the flat plate described above has tongue-shaped insertion parts formed on both the left and right sides, and the front left and right edges have T-shaped locking parts. By engaging the vertical, straight window of the back panel with the L-shaped hooks of the two side panels, a U-shaped frame is formed in plan view. A fire pit base characterized in that the tongue-shaped insertion part of the top plate is inserted into the horizontal window of the back plate, and the T-shaped locking part of the top plate is dropped into the inverted L-shaped hook part of the side plate and engaged, thereby restricting the left and right expansion of the two side plates of the U-shaped frame in plan view.

2. In the fire pit base according to claim 1, The horizontal window on the back panel mentioned above is provided in multiple vertical directions. Multiple inverted L-shaped hooks are also provided on the above-mentioned side plate in the vertical direction. A fire pit base characterized in that, with respect to a U-shaped frame in plan view consisting of the above-mentioned back plate and side plate, any number of planar plates for any purpose can be attached using the above-mentioned multiple horizontal windows and multiple inverted L-shaped hooks.

3. In the fire pit base according to claim 1, The vertical horizontal windows on the left and right edges of the back panel mentioned above are provided in alternating pairs on each side. The rear edge of the above-mentioned side panel is provided with four L-shaped sections in the vertical direction. The rear panel is placed on both the left and right sides of the side panel, Two of the four L-shaped sections of the above-mentioned side panels are used to connect to the above-mentioned left and right rear panels. A fire pit base characterized by the ability to connect the above-mentioned U-shaped frame in a plan view in a horizontal direction by connecting the above-mentioned configuration in a left-right direction.

4. In the fire pit base according to claim 1, The above-mentioned flat board is characterized by having a straight-line opening for attaching another board in an upright position.

5. In the fire pit base according to claim 4, A fire pit base characterized in that the above-mentioned separate board is a flat board different from the above-mentioned flat board.

6. In the fire pit base according to claim 5, The aforementioned separate board is a board for a small window for a campfire, and is a base for a campfire stand.

7. In the fire pit base according to claim 1, A fire pit base characterized in that the upper end of the back panel is provided with an engaging portion for attaching another panel.

8. In the fire pit base according to claim 1, A fire pit base characterized in that the upper end of the side plate described above is provided with an engaging portion for attaching another plate.

9. In the fire pit base according to claim 7 or claim 8, The fire pit base is characterized by the fact that the other boards mentioned above are either boards for small fire pit windows, boards for crossbeams, or boards for securing shelves.

10. In the fire pit base according to claim 2, The above flat panel is a support plate with an opening on the front side and a U-shape in plan view. The support plate is attached by inserting its tongue-shaped portion into a horizontal window provided at the lowest vertical position of the rear plate, and by dropping its T-shaped locking portion into an inverted L-shaped portion provided at the lowest vertical position of the side plate and engaging them together. A fire pit base characterized by allowing a fire-starting device to be placed from the front side within the U-shaped area of ​​the support plate in plan view.

11. In the fire pit base according to claim 2, This fire pit base is characterized by the ability to arrange multiple cooking devices in a multi-tiered, intermittent manner by installing multiple flat plates as described above, allowing for simultaneous cooking of multiple types of food.

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