Tabletop stove

The tabletop stove design addresses the complexity and bulkiness of existing stoves by using a cardboard box as the base and metal wire stays to support the stove body, resulting in a more portable, easy-to-assemble, and clean stove.

JP2025074448APending Publication Date: 2025-05-14SHANGHAI OUYI TRADE ENTERPRISES CO LTD
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Patent Information

Application Number
JP2023185247
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-10-30
Publication Date
2025-05-14

AI Technical Summary

Technical Problem

Existing tabletop stoves require a stand with an integrated upper frame and legs to hold the fire plate at a specified height, and they necessitate additional components like a fire extinguishing dish and its lid, making them cumbersome and difficult to assemble and clean.

Method used

A tabletop stove design that uses a cardboard box as the base for assembly, where the stove body is supported by multiple independent metal wire stays engaged with the outer edge of the stove body and fixed to the base box, allowing for easy assembly, portability, and cleaning.

Benefits of technology

The solution provides a more user-friendly and portable tabletop stove by using a cardboard box as the supporting substrate, allowing for easy assembly and cleaning, while maintaining stability and safety even when using solid fuels.

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Abstract

To solve the problem that it is necessary to hold a wick case at a certain height with a stand integrally having an upper frame and legs, and so a fire extinguishing tray and a lid for the same are necessary as stove constituent members.SOLUTION: A stand box made of corrugated cardboard is divided up and down, engaged, and is made into a base of a stove body. A plurality of metal wire stays is pierced in the base, and its upper end part is bent and formed into a hook shape to support the stove body in a tray shape made of aluminum. A wire net mounted on an opening of the stove body is fixed with the plurality of stays at the same time. The wick case (the stove body), the wire net, solid fuel, and the plurality of stays are stuffed in a single corrugated cardboard box to provide an assembled stove kit. Carrying is easy, and in assembling a corrugated cardboard box functions as a base body, above which the stove body is simply but reliably fixed, making cleaning up after using the stove easy.SELECTED DRAWING: Figure 5
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Description

[Technical field]

[0001] The present invention relates to a tabletop stove, and more particularly to a tabletop stove that is easy to carry and easy to assemble. [Background technology]

[0002] As this type of tabletop stove, for example, an indoor charcoal grill set described in Patent Document 1 is known. This set consists of a fire pan for burning charcoal placed on a base plate with several small holes, a stand with two legs on the left and right connected by a rectangular frame that holds the fire pan at a constant height, a grill that covers the opening of the fire pan, a fire pan placed below the fire pan, and a fire lid that covers the fire pan and catches any fallen ash. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Publication number 7-26977 DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0004] However, in such a conventional simple stove, charcoal is burned in the fire pan, and the fire pan receives the ashes that fall from the multiple small holes formed in the bottom plate of the fire pan, so there was a problem that the fire pan had to be held at a certain height by a stand. In other words, the fire pan had to be held at a certain height by a stand with an integrated upper frame and legs. In addition, a fire pan and its lid were required as stove components. As a result of extensive research, the inventor discovered that by packing the fire pan, wire mesh, solid fuel, and multiple independent stands (stays) into a single cardboard box to create a boxed, assembled stove kit, it would be easy to carry, and that by using the cardboard box as the base for assembly, the stove body could be simply but firmly fixed to the top of it, and that the stove would be easy to put away after use, thus completing the invention.

[0005] The object of the present invention is to solve the above problems and to provide a tabletop stove that is dramatically easier to use by using the outer box, which is sold as a boxed kit, as a supporting base when the stove is in use. [Means for solving the problem]

[0006] The invention described in claim 1 is a tabletop stove that burns fuel inside the stove body and comprises a box-shaped base that can be placed on a table, a dish-shaped stove body made of metal foil having a bottom plate and side walls and an open top, and a plurality of stays that support the stove body above the base box, wherein the plurality of stays are made of metal wire, one end of each of the stays engages with the outer edge of the side wall of the stove body and the other end is fixed by the base box, forming a predetermined space between the bottom surface of the stove body and the top surface of the base box. The base box can contain the stove body, multiple stays, wire mesh, solid fuel, ignition agent, etc. These will be stored in the base box and sold as a tabletop stove. The base box can be made, for example, from cardboard, with an upper box and a lower box that fit together. The base box has a rectangular parallelepiped shape that is convenient for use, and it is effective if at least the bottom surface of the rectangle is flat. This is because the stove will be stable on the table when in use. Of course, this does not exclude the base box being used outdoors. When using this stove outdoors, the base box can also be placed directly on the floor, road surface, etc. The stove body functions as a so-called fire dish, and for example, solid fuel is loaded inside and ignited and burned. It is made of metal, for example, thin aluminum plate material or aluminum foil formed into a specific dish shape. The thickness of the aluminum foil used is about 0.2 mm to 0.005 mm. The dish shape means, for example, that the outer edge part of the rectangular bottom plate is formed with raised side edges, and the upper part has an opening of approximately the same shape as the bottom plate. In addition, a wire mesh of approximately the same size is installed in the opening of the stove body. This stove body (dish-shaped) can be stored in the base box, and is supported at a predetermined height above the base box by multiple stays (wire rods) with the base box as a base. The height of the side walls of the stove body is smaller than the height of the side walls of the rectangular base box. The stays are, for example, four in number, and each stay is made of a metal wire. The upper end (one end in the length direction) of each stay engages with the outer edge of the opening of the stove body, and the lower end (the other end) of each stay is fixed by the base box to form a predetermined space between the bottom surface of the stove body and the top surface of the base box. For example, the upper end is approximately crank-shaped when viewed from the side, and the folded end (one end) is formed in a curved convex shape when viewed from the front. Also, when viewed from the side, the stay has a horizontal part that is folded horizontally from the lower end of the upper end, and two open leg parts extend downward from the lower end of the horizontal part. That is, the stay has an open leg part that is approximately vertical from bottom to top, a horizontal part that folds the upper end of the open leg part and extends horizontally, and an approximately U-shaped folded part that rises vertically from the horizontal part. When viewed from the side as a whole, the stay is folded in an approximately crank shape. The two legs of the open leg part are, for example, divergent in shape with the lower side expanding in the same plane.

[0007] The invention described in claim 2 is a tabletop stove as described in claim 1, in which each of the multiple stays is made by folding a metal wire in the middle of its length so that one end of it becomes a folded end and the other end becomes an open end consisting of two legs, and the folded end is engaged with the outer edge of the side wall of the stove body and the open end is fixed to the base box, thereby supporting the stove body. Each stay is made of metal wire, such as steel wire or iron wire. A single metal wire of a specified length and thickness is bent into an approximate U-shape at the midpoint in its length direction. As a result, one end (the folded end) is approximately U-shaped, and the other end has two metal wire legs that are slightly flared in-plane. The stays are supported upright at a predetermined position on the base box (for example, a position on a plane), and one end of each stay is engaged with the outer edge of the side wall of the stove body to support the stove body at a predetermined height. Each stay is arranged at equal intervals on the outer edge of the top surface of the base box in a substantially flat plane to support the stove body. Since the stays are made of metal wire, they are able to elastically deform by a predetermined amount in response to a horizontal external force. For example, a pair of holes can be formed on the top and bottom of the box, and two legs can be inserted into the holes to support the stays.

[0008] The invention described in claim 3 is a tabletop stove described in claim 2, in which the base box is composed of a lower box and an upper box that fits into it, and the two legs that form the open ends of the multiple stays are fixed in contact with the side wall surface of the upper box and / or the side wall surface of the lower box. For example, between the side wall of the upper box and the side wall of the lower box (between the surfaces that come into contact when mated) The two legs of this open end are inserted into the gap between the two side walls, and the stay is positioned and supported at a predetermined height in an approximately upright state. The side walls of the upper box are constructed of double walls, and the open ends (two legs) of the stay are inserted into the gap between the double walls and the legs are brought into contact with the side wall surfaces from the inside, allowing the upper box to support the lower ends of the stay. Since the stay itself is constructed of metal wire, The base box has, for example, a rectangular upper surface, and when the stove body is supported upright on the upper surface, a hole, for example, an oval or rectangular shape is formed in the center of the upper surface. This hole allows communication between the inside and outside of the base box, and ensures a certain amount of space below the stove body. The folded end of the stay can be bent in a crank shape when viewed from the side, and can include a horizontal portion bent horizontally from the upper end of the open end, and a folded portion extending vertically from the tip of the horizontal portion. The stand can be large enough to accommodate the stove body. The opening of the stove body is covered with a wire mesh or a roasting rack, and the wire mesh can be fixed to the stove body by the stays. The base box is a box capable of storing the stove body, and an opening of approximately the same shape as the stove body is formed on the upper surface thereof, and the plurality of stays can be evenly arranged around this opening. The open ends of the stays are inserted into upper and lower holes formed in the top and bottom surfaces of the box, so that the stays can be erected and fixed to the box. The wire mesh, the stove body, the solid fuel, and the multiple stays are stored in the base box, and can be transported, given away, stored, etc. as a complete tabletop stove set. It can also be used as a BBQ grill when camping outdoors. Cleaning up after use is also easy, as it can be stored in the base box and disposed of. Effect of the Invention

[0009] In the inventions described in claims 1 to 3, the stove body (fire pan) is supported above the base box by wire stays, so even when cooking with solid fuel or boiling water, the heat of combustion is not transferred to the base box, and a certain cooling effect can be obtained from the space below the fire pan, so even if the base box is made of cardboard, the fire will not spread to it. It is safe. For example, a stand is placed on a table, and multiple stays are inserted into the stand, and the stove body is supported by the stays. There is a certain amount of space between the stove body and the stand. This allows air to be supplied to the fire pan and prevents the stand from overheating at the same time. Each of the multiple stays is independent and is fixed to a predetermined position on the top surface of the base box (such as the periphery of the top surface). Therefore, when the base box is placed on an inclined surface, the height can be adjusted by slightly bending the stays on the upper side of the inclined surface, and the stove body can be held horizontally. This dramatically improves usability. In addition, each used part can be stored in the base box and disposed of. The stays are made of metal wire, and the upper folded ends of the stays engage with the outer edge of the opening of the stove body. The lower open ends are fixed to the base box. The stove body is firmly fixed to the base box by the stays. The base box is composed of an upper box and a lower box that fit together, and the two legs at the open ends of the stays are sandwiched between the side surfaces of the upper box and the lower box. Therefore, the spread angle of the two legs at the open ends can be easily adjusted to easily adjust the height position of the stays.

[0010] In the invention described in claim 2, in particular, the multiple stays are configured so that their folded ends engage with the outer edge of the side wall of the stove body, thereby making it possible to more firmly support the stove body.

[0011] In the invention described in claim 3, the base box is divided into two parts, an upper part and an lower part, and the two legs constituting the open ends of the stay are supported upright by being sandwiched between the side walls of the upper box and the lower box. Therefore, the stove body can be supported while allowing a certain amount of lateral movement of the stay. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is an exploded perspective view showing an assembly process of the base box of the tabletop stove according to the first embodiment of the present invention. [Diagram 2] FIG. 2 is an exploded perspective view showing a process of erecting a stay of the tabletop stove according to the first embodiment of the present invention. [Diagram 3] FIG. 2 is a perspective view showing a process of installing the stove body of the tabletop stove according to the first embodiment of the present invention. [Figure 4]FIG. 2 is a perspective view showing a process of storing solid fuel in the tabletop stove according to the first embodiment of the present invention. [Diagram 5] FIG. 2 is a perspective view showing the process of installing a wire mesh on the tabletop stove according to the first embodiment of the present invention. [Figure 6] FIG. 2 is an exploded perspective view showing the process of setting the wire mesh on the tabletop stove according to the first embodiment of the present invention. [Figure 7] 10 is an exploded view showing the assembly process of the base box of the tabletop stove according to the second embodiment of the present invention. FIG. [Figure 8] FIG. 11 is an exploded perspective view showing a stay installation process for a tabletop stove according to a second embodiment of the present invention. [Figure 9] FIG. 11 is a perspective view showing the process of installing the stove body of the tabletop stove according to the second embodiment of the present invention. [Figure 10] FIG. 11 is a perspective view showing the process of setting the solid fuel and wire mesh in the tabletop stove according to the second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a tabletop stove according to the present invention will be described in detail with reference to the drawings. EXAMPLES

[0014] 1 to 6 are diagrams showing an assembly process of the tabletop stove according to the first embodiment. First, the tabletop stove is assembled using the following materials (parts): a rectangular prism base box 10 made of cardboard, a dish-shaped stove body 20 made of aluminum foil and also of roughly the same size as the base box 10, four stays 30 made of steel wire, and a wire mesh 40 made of iron wire. The base box 10 is composed of an upper box 11 and a lower box 12 that fit together. The upper box 11 has an opening at its bottom end, while the lower box 12 has an opening at its top. The base box 10 can be formed by fitting the upper box 11 into the opening of the lower box 12 from above. By fitting them together, the base box 10, which is a flat rectangular parallelepiped, is formed. Furthermore, a generally rectangular hole 13 is provided on the top surface of the base box 10 (upper box 11) by punching (removing) almost the entire surface. This hole 13 is formed by cutting out a generally rectangular shape from the top surface of the upper box 11. The upper box 11 and the lower box 12 each have side walls 11a, 12a on four sides, and the height of these side walls is the same for the upper and lower boxes. Therefore, as shown in Figure 1, the base box 10 has a flattened rectangular parallelepiped shape of a predetermined height. The upper box 11 and the lower box 12 are made of cardboard (or hard paper), and each of the four side walls 12a of the lower box 12 has a double-wall structure with a gap of a specified width. These elongated gaps (in plan view) have openings at the top, and the leg parts of each stay 30 described later are inserted through these openings. That is, the leg parts of the stay 30 come into contact with the inner surface of the double wall, restricting its movement (movement in the thickness direction of the side wall). The side wall gaps serve as a base for supporting and standing each stay 30 on the periphery of the base box 10. It is possible to make each side wall 11a of the upper box double-walled, and also each side wall 12a of the lower box double-walled. The double-wall structure reinforces the base box 10 itself against external forces acting in the vertical direction. Furthermore, the dimensions of the length, width, and depth of the base box 10 are such that the above-mentioned stove body 20, four stays 30, wire mesh 40, and solid fuel (described later) can be accommodated within the box. In other words, the base box 10 accommodating these items can be sold as a tabletop stove.

[0015] FIG. 1 is an exploded perspective view showing an assembly process of a base box 10 of a tabletop stove according to a first embodiment of the present invention. The upper box 11 is fitted onto the lower box 12 in the direction of the arrow in the figure (vertical direction), and as a result, a large rectangular opening (hole 13) is formed by the upper box 11 on the top surface of the base box 10. Along the two short sides of the upper box 11, two sets of stay holes (pairs of through holes at a predetermined interval) 11b are formed on the upper surface periphery (opening periphery) thereof, for a total of four sets, symmetrically arranged.

[0016] FIG. 2 is an exploded perspective view showing the process of assembling the four stays 30 to the base box 10. As shown in FIG. As described above, a substantially rectangular opening (hole 13) is formed by the upper box 11 in the center of the horizontal upper surface (rectangle) of the base box 10. A pair of stay holes 11b are formed side by side in two pairs on each of the left and right short side edges of the periphery of this opening 13. That is, on the upper surface of the base box 10 placed on a table, four stay holes 11b are arranged opposite each other on the left and right edges of the upper surface (upper surface of the upper box 11) on the two opposing short sides of the periphery of the opening 13. As shown in the figure, a pair of legs 31, 32 of four stays 30 are inserted from top to bottom into these four sets of stay holes 11b. As a result, the lower ends of the legs of each stay 30 abut the bottom surface of the lower box 12, and the tips of the four stays 30 standing approximately perpendicular to the upper surface of the base box 10 are aligned at the same height. Each of the legs 31, 32 abuts against the double side walls of the lower box 12 and is sandwiched between the side walls. All four stays 30 are the same size and shape. More specifically, the stay 30 is formed into a generally inverted U-shape by folding back a single steel wire rod having a diameter of 1.5 to 2.0 mm at the middle part in the longitudinal direction. Furthermore, the stay 30 is further folded back to have a crank shape in side view. When the stay 30 is installed upright on the base box 10, the upper end of the stay 30 becomes the folded back end 30A having the generally U-shape described above, and the lower end of the stay 30B is an open end 30B consisting of two legs 31, 32 that are shaped like a V-shape and diverge downward. Furthermore, these are connected by a horizontal portion 30C that is folded horizontally. That is, the stay 30 includes a horizontal portion 30C that is folded horizontally from the upper end of the open end 30B, and a folded back portion 30A that extends vertically from the tip of the horizontal portion 30C.

[0017] This folded-back portion 30A protrudes upward by a predetermined height and, as described below, is inserted into a locking hole in the peripheral edge of the stove body 20 to support the dish-shaped stove body 20 at a predetermined height. Figure 3 is a perspective view showing this state. The stove body 20 is made of aluminum foil and has a shallow dish shape with an opening at the top as a whole. It has a rectangular bottom plate 21 of approximately the same shape and size as the hole 13, which is the rectangular opening of the upper box 11, four side walls 22 (of the same height) standing approximately vertically on each of the four sides of the flat bottom plate 21, a peripheral portion 23 where the upper ends of these side walls 22 are horizontally bent, and four locking holes 24 formed in the peripheral portion 23 on the short side. The above-mentioned opening 25 is formed by the peripheral portions 23 on these four sides. The internal space of this dish-shaped stove body 20 functions as a charcoal reservoir and as a combustion space for the solid fuel in the fire pan. Figure 4 shows the state in which solid fuel 50 is stored in the internal space of the stove body 20. The solid fuel is made by mixing charcoal powder with an ignition agent and molding it into a thin disk (or cylinder) shape, which can be easily ignited with a lighter with a handle. In this case, the side wall 22 of the stove body 20 functions as a windbreak, for example, outdoors. A wire mesh 40 is placed on the stove body 20 so as to cover the opening 25 (see Figure 5). This wire mesh 40 is large enough to cover the entire opening 25. The wire mesh 40 is rectangular, and its edges 41 are reinforced with metal wire (core wire; annealed iron wire, galvanized). The folded-back parts 30A of the stays 30 are inserted and hooked into the mesh parts at the four corners of the rectangular wire mesh 40. This state is shown in Figure 6. In other words, food can be placed on the wire mesh 40, grilled, and eaten. Note that a roasting rack, iron plate, etc. can be placed in place of the wire mesh 40 for cooking, boiling water, etc.

[0018] 7 to 10 are perspective views showing the assembly process of a tabletop stove according to a second embodiment of the present invention. In this embodiment, the present invention is applied to a stove body that is circular in plan view. 7 shows the fitting process of the upper box 101 and the lower box 102 to form the base box 100. A circular hole 103 is formed in the center of the rectangular upper surface of the upper box 101. Four pairs of stay holes 110 are arranged in the four corners (the periphery of the circular hole 103) of the square upper surface of the upper box 101. Similarly, in the lower box 102, a stay hole 111 is formed immediately below the stay hole 110 of the upper box 101 on the periphery of a circular hole 105 formed in the bottom plate 104 that serves as the raised bottom. That is, the stay 120, which is formed by bending a metal wire inserted into the upper box stay hole 110, has both legs 121, 122 inserted into the stay hole 111 of the raised bottom 104 of the lower box 102, and the four stays 120 are erected in positions surrounding the circular holes 103, 105 of the base box 100. FIG. 8 shows the state in which the stays 120 are inserted into the four corners of the base box 100 and stand up. 9, stove body 130, which is a circular dish having the same diameter as circular holes 103, 105, is supported horizontally at a predetermined height above base box 100. A space is formed by base box 100 below the bottom plate of stove body 130. Air holes 150, 151 are formed on the side of base box 100 to facilitate the intake and exhaust of air into this space. In Figure 9, four stays 120 arranged and erected at the four corners of the top surface of the upper box 101 have their upper ends (hook-shaped portions) hooked to the upper edge portion that forms the top opening of the stove body 130, at their horizontal portions 131. The stove body 130 is stably supported in a horizontal state above the base box 100 by these four stays 120. Each stay 120 has roughly the same shape as the stays in the above embodiment and is also formed by bending a single metal wire, with its upper end (bent end) bent into a so-called hook shape to hook onto the upper edge portion of the side edge of the stove body 130. 123 denotes this hook-shaped portion. The circular wire mesh 140 is secured from all four sides by the stays 120 and is disposed so as to cover the opening of the stove body 130. Figure 10 shows the state in which solid fuel is contained inside the fire pan and the wire mesh 140 is fixed. Air holes 150, 151 are formed in the opposing side walls of the upper box and the lower box, respectively, to communicate the internal space of the base box with the outside. In other words, the legs 121, 122, which are the open ends of each stay 120, are simultaneously inserted into upper holes 110 and lower holes 111 formed respectively on the top and bottom surfaces of the base box 100, thereby being erected and fixed to the base box 100. The base box 100 can store the stove body 130, the four stays 120, the wire mesh 140, and the solid fuel inside, allowing it to be transported, stored, sold, etc. as an assembled tabletop stove. The circular holes in the upper and lower boxes can be easily formed by cutting out circles in the cardboard top and raised bottom. The internal space of the base box allows air to circulate and provides cooling when the stove is in use. Other configurations and uses are the same as those of the above embodiment. For example, after burning the fuel, food placed on the wire net can be cooked with the heat of combustion, and a pot can be placed on it to boil water. After use, the stove body can be stored in the stand and carried around for disposal.

[0019] Furthermore, because the stays are made of metal wire, they can be bent or otherwise deformed during use; for example, the height of the stove body can be adjusted by bending the stays (which are elastically deformable) and increasing the degree to which the legs are spaced apart. When used outdoors, the side walls of the stove body are directly exposed to the outside air, so this can prevent the base box from burning due to heating. The number of stays is optional, but three or more will provide stable support for the stove body. In particular, with a circular stove body, there is greater freedom in the positioning of the multiple stays. [Industrial Applicability]

[0020] This invention is useful as a technique for a simple, assembled tabletop stove. [Explanation of symbols]

[0021] 10,100 boxes, 11,101 upper box, 12,102 lower box, 20,130 Stove body, 30,120 Stay, 12a Side wall of lower box (double wall), 22 Side wall of stove body, 30A Folded end of stay, 30B Open end of stay; 31,32 open end legs, 121,122 Stay legs.

Claims

1. A box-shaped stand that can be placed on a table; A dish-shaped metal foil stove body having a bottom plate and a side wall and an open top; A plurality of stays are provided to support the stove body above the base box, A tabletop stove that burns fuel inside the stove body, The plurality of stays are made of metal wire, one end of which engages with the outer edge of the side wall of the stove body, and the other end is fixed to the base box, forming a specified space between the bottom surface of the stove body and the top surface of the base box.

2. 2. A tabletop stove as described in claim 1, wherein each of the plurality of stays is a metal wire that is folded back at the middle of its length to form one end as a folded back end and the other end as an open end consisting of two legs, and the folded back end is engaged with the outer edge of the side wall of the stove body and the open end is fixed to the base box, thereby supporting the stove body.

3. A tabletop stove as described in claim 2, wherein the base box is composed of a lower box and an upper box that fits into the lower box, and the two legs that constitute the open ends of the multiple stays are fixed in contact with the side wall surface of the upper box and / or the side wall surface of the lower box.

Citation Information

Patent Citations

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    JP1995026977U