Cooking box

Abstract

To provide a cooking box which is light weight, can be easily carried and assembled, and in which a height of a cooked object to a heat source can be easily adjusted, and a pie or pizza can be easily cooked using charcoal.SOLUTION: A cooking box 1 comprises: a cylindrical trunk 2 extending in a vertical direction; an upper lid 3 closing an upper end opening of the trunk; a bottom board 4 arranged on a lower part of the trunk 2; a pair of mounting groove parts 5 which is provided on the trunk 2, and extends in a vertical direction at positions where the mounting groove parts face each other sandwiching an axis line of the trunk 2 therebetween; a mounting part 6 on which a plate-shaped member (gauze) for mounting thereon a cooked object, is mounted; an air window part 7; a handle 8 for opening / closing door part; and an opening / closing door part 9 which is opened and communicated with the trunk 2. As the pair of mounting groove parts 5, vertical cut lines which extend in the vertical direction and provided on positions where the two vertical cut lines face each other sandwiching the axis line of the trunk 2 therebetween and the vertical cut lines are one set, and auxiliary cut lines extending from upper and lower ends of the vertical cut lines along a horizontal direction, are provided.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cooking box that can be used as a pizza oven for baking pizza, a smoking tool for smoking fish, meat, etc. [Background technology]

[0002] In outdoor activities such as camping, the enjoyment of camping can be improved if freshly baked pizza and the like can be provided in addition to standard grilled foods such as barbecues.

[0003] However, typical pizza ovens are made of stone and installed in stores, etc., and cannot be moved to any location.

[0004] Conventionally, a simple smoking box has been proposed for smoking fish, meat, etc. during outdoor activities such as camping, which is easy to handle and can be stored in a small space (see Patent Document 1).

[0005] The simple smoking box described in Patent Document 1 consists of a cylindrical body made of fire-retardant paperboard, a fire-retardant paperboard top cover that closes the upper opening of the cylindrical body, a wire mesh support for the item to be smoked that is installed on the inside upper part of the cylindrical body, a juice tray formed from either a thin metal plate or metal foil, and a smoke chip holder. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Utility Model Registration No. 3020713 Summary of the Invention [Problem to be solved by the invention]

[0007] However, in the above-mentioned simple smoking box, the height position of the wire mesh support that supports the food to be smoked is fixed, so the distance from the heat source cannot be adjusted, the energy of the heat source cannot be used effectively, and uneven cooking of the food occurs.

[0008] Therefore, the present invention has been made in consideration of the above problems, and has an object to provide a cooking box that is lightweight, easy to carry, and allows the degree of doneness to be adjusted. [Means for solving the problem]

[0009] The cooking box of the present invention has a cylindrical body extending in the vertical direction, an upper lid closing the upper end opening of the body, a pair of mounting grooves provided in the body at opposite positions across the axis of the body and extending in the vertical direction, and a pair of mounting parts inserted into the pair of mounting grooves with their tip sides protruding into the internal space of the body and their base sides protruding outside the body, and with the middle parts between the tip and base ends clamped by the periphery of the mounting grooves, and is made of flame-retardant treated paperboard, wherein the vertical length of the middle parts of the mounting parts is shorter than the length of the mounting grooves (hereinafter referred to as the "cooking box of the first present invention").

[0010] In the cooking box of the first invention, the body, top lid, placing part, etc. are formed from fire-retardant treated paperboard, so that it is lightweight, easy to carry, simple to assemble, and inexpensively and easily manufactured.

[0011] In addition, in the cooking box of the first invention, the vertical length of the middle part of the mounting part is shorter than the length of the mounting groove, so that the mounting part can slide vertically along the mounting groove. Therefore, by placing a plate-like member such as a wire netting on which the food to be cooked is placed on the upper edge of the mounting part and adjusting its height, the degree of doneness of the food can be adjusted.

[0012] In the cooking box of the first invention, it is preferable that the placing portion has a support notch located midway up and down from the tip end, extending from the tip end toward the base end, into which a plate-shaped member on which the food to be cooked is placed is inserted and supported (hereinafter referred to as the "cooking box of the second invention").

[0013] In the second cooking box of the present invention, the placing portion of the cooking box of the first invention is provided with a support notch located midway up and down from the tip end, extending from the tip end toward the base end, into which a plate-shaped member on which the food to be cooked is placed is inserted to support it, thereby enabling the plate-shaped member (wire mesh, etc.) on which the food to be cooked is placed to be securely held.

[0014] Therefore, according to the cooking box of the second invention, the height of the placing portion can be adjusted while securely holding the plate-shaped member (wire mesh, etc.) on which the food to be cooked is placed, making it possible to adjust the degree of doneness.

[0015] In the cooking box of the first or second invention of the present invention, it is preferable that the placement groove portion has a vertical cut line extending in the vertical direction and an auxiliary cut line extending horizontally from the vertical cut line (hereinafter referred to as the "cooking box of the third invention").

[0016] In the third cooking box of the present invention, the mounting groove is composed of a vertical cut line extending in the up-down direction and an auxiliary cut line extending horizontally from the vertical cut line. Therefore, when the mounting part is inserted into the body part, the paperboard can deform around the line connecting the end of the vertical cut line and the end of the auxiliary cut line as the swing axis, making it easy to adjust the height, and the restoring force of this deformation can securely hold the inserted mounting part in the desired position.

[0017] Therefore, according to the cooking box of the third invention, the height of the mounting portion can be easily adjusted and the mounting portion can be securely held at the adjusted height, making it possible to adjust the degree of doneness.

[0018] In the cooking box of the third invention, it is preferable that the above-mentioned groove portions are formed in a set of two at opposing positions across the axis of the body, a total of four, and the above-mentioned placement portions are formed in a set of two at opposing positions across the axis of the body, corresponding to the above-mentioned groove portions, and the set of placement portions are connected by a connecting portion connecting each base end portion (hereinafter referred to as the ``cooking box of the fourth invention'').

[0019] In the cooking box of the fourth invention, a total of four mounting parts are formed, and the plate-like member (wire mesh, etc.) on which the food to be cooked is placed can be supported at four points, improving stability. In addition, the set of mounting parts are connected by a connecting part that connects each base end, so that when the mounting parts are slid up and down along the mounting groove, this connecting part can be used as an operating part, making the sliding operation easy.

[0020] Therefore, according to the cooking box of the fourth aspect of the present invention, the height of the mounting portion can be easily adjusted and the mounting portion can be securely held at the adjusted height, making it possible to adjust the degree of doneness.

[0021] In addition, the cooking box of the first invention has an air adjustment hole provided in the body portion that penetrates the inside and outside of the body portion, a pair of window grooves provided in the body portion that extend in the vertical direction on either side of the air adjustment hole, and an air window portion that is bent into a U-shape in a plan view and has each of the bent end portions inserted into the pair of window grooves and clamped by the periphery of the window groove to cover the air adjustment hole, wherein the vertical length of the air window portion at the position where it is clamped by the periphery of the window groove is smaller than the length of the window groove, and it is preferable that at least a portion of the air adjustment hole is exposed when the air window portion is slid upward or downward along the window groove (hereinafter referred to as the "cooking box of the fifth invention").

[0022] In the cooking box of the fifth aspect of the present invention, the air window portion can be slid up and down to adjust the area of ​​the exposed air adjustment hole, thereby adjusting the amount of air taken in through the air adjustment hole.

[0023] Therefore, according to the cooking box of the fifth aspect of the present invention, the amount of air for combustion can be adjusted, and therefore the degree of doneness can be adjusted.

[0024] In addition, in the cooking box of the first present invention, it is preferable that the body portion is provided with an opening and closing door portion formed by a door fold line and a door cut line that connects both ends of the door fold line and extends convexly in a direction away from the door fold line (hereinafter referred to as the "cooking box of the sixth present invention").

[0025] In the cooking box of the sixth aspect of the present invention, an opening and closing door is provided on the body, which makes it easy to install a plate-shaped member (such as a wire mesh) on which the food to be cooked is placed, install a heat source such as a charcoal fire, and take the food to be cooked in and out. In addition, since the opening and closing door is formed by a door fold line and a door cut line that connects both ends of the door fold line and extends in a convex shape in a direction away from the door fold line, it can be manufactured cheaply and easily.

[0026] In addition, in the cooking box of the second invention, it is preferable that the placement groove portion has an auxiliary cut line extending horizontally in the vertical middle of the vertical cut line (hereinafter referred to as the "cooking box of the seventh invention").

[0027] In the cooking box of the seventh aspect of the present invention, for example, by providing an auxiliary cut line extending horizontally in the vertical middle of the vertical cut line of the mounting groove, a clicking sensation is generated when the mounting portion slides vertically along the mounting groove, making it easy to adjust the height.

[0028] Therefore, according to the cooking box of the seventh aspect of the present invention, the height of the placement portion can be easily adjusted, and therefore the degree of doneness can be easily adjusted. [Brief description of the drawings]

[0029] [Figure 1] FIG. 1 is a perspective view showing an embodiment of the cooking box of the present invention. [Diagram 2] FIG. 2 is a development view of the paperboard that constitutes the top cover and the left and right sides of the body of the cooking box of FIG. 1. [Diagram 3] FIG. 2 is a development view of the paperboard that constitutes the bottom surface and the front and rear sides of the body of the cooking box of FIG. 1. [Figure 4] An exploded view of the paperboard base of the cooking box in Figure 1. [Diagram 5] FIG. 2 is a development view of the paperboard that constitutes the placement portion, air window portion, and handle of the opening and closing door portion of the cooking box in FIG. [Figure 6A] FIG. 2 is a first perspective view showing the assembly process of the cooking box of FIG. 1, illustrating the assembled state of the bottom surface of the cooking box and the front and rear side surfaces of the body portion. [Figure 6B] 1, is a second perspective view showing the assembly process of the cooking box, and is a perspective view explaining the assembled state of the bottom surface of the cooking box and the front and rear side surfaces of the body portion. FIG. [Figure 6C] 1, is a third oblique view showing the assembly process of the cooking box, and is a perspective view explaining the assembled state of the bottom surface of the cooking box and the front and rear side surfaces of the body portion. FIG. [Figure 7A] 1, is a fourth oblique view showing the assembly process of the cooking box, and is a perspective view explaining the assembled state of the top lid and the left and right side surfaces of the body of the cooking box. FIG. [Figure 7B] 1, is a fifth oblique view showing the assembly process of the cooking box, and is an oblique view explaining the assembled state of the top lid and the left and right side surfaces of the body of the cooking box. FIG. [Figure 7C] 1, is a sixth oblique view showing the assembly process of the cooking box, and is an oblique view explaining the assembled state of the top lid and the left and right side surfaces of the body of the cooking box. FIG. [Figure 8A] FIG. 7 is a seventh oblique view showing the assembly process of the cooking box of FIG. 1, illustrating the assembled state of the bottom plate of the cooking box. [Figure 8B] FIG. 13 is an eighth oblique view showing the assembly process of the cooking box of FIG. 1, illustrating the assembled state of the bottom plate of the cooking box. [Figure 8C] FIG. 9 is a ninth oblique view showing the assembly process of the cooking box of FIG. 1, illustrating the assembled state of the bottom plate of the cooking box. [Figure 9] 10 is a perspective view showing the assembly process of the cooking box of FIG. 1, illustrating the assembled state of the placement portion, the air window portion, the handle of the opening and closing door portion, and the bottom plate. FIG. [Figure 10A] 2 is a first perspective view showing the cooking box of FIG. 1 in use, illustrating the state when the opening and closing door is open; FIG. [Figure 10B] 1 in use, and is a perspective view illustrating the state in which the air window portion on the rear side is open. FIG. [Figure 11] 1A and 1B are schematic diagrams showing modified mounting grooves of the cooking box of the present invention, where (A) is a first modified example, and (B) is a second modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] Hereinafter, a cooking box 1 according to one embodiment of the present invention (hereinafter simply referred to as "this embodiment") will be described with reference to FIGS. 1 to 10B.

[0031] 1, the cooking box 1 of this embodiment has a cylindrical body 2 extending in the vertical direction, an upper lid 3 closing the upper opening of the body 2, a base plate 4 located at the bottom of the body 2, a pair of mounting grooves 5 provided in the body 2 and extending in the vertical direction at positions facing each other across the axis of the body 2, a mounting section 6 for mounting a plate-like member (such as a wire mesh) on which an object to be cooked is placed, an air window 7 for introducing combustion air into the cooking box 1, a door handle 8, and an opening / closing door 9 connected to and opening in the body 2. Each section of the cooking box 1 is made of corrugated cardboard.

[0032] The body 2 is composed of left and right side plates 21 and 22 which are integrally connected to the top cover 3, and front and rear side plates 23 and 24 which are integrally connected to the bottom plate 20.

[0033] The top lid 3 and the left and right side panels 21 and 22 are made of a substantially rectangular corrugated cardboard cardboard board 1X as shown in Fig. 2. The center of the cardboard 1X in Fig. 2 becomes the top lid 3 of the cooking box 1 when assembled into the cooking box 1 as shown in Fig. 1, and both sides of the top lid 3 become the left and right side panels 21 and 22 of the cooking box 1 when assembled into the cooking box 1 as shown in Fig. 1.

[0034] As shown in Fig. 2, the cardboard 1X has a partition crease a that partitions the top cover 3 from the left and right side panels 21 and 22. The top cover 3 is connected to the left and right side panels 21 and 22 via the partition crease a. The top cover 3 also has a pair of cover crease lines a1 and a2 that are parallel to the partition crease line a. When assembled into the cooking box 1, the top cover 3 can be gradually folded along the cover crease lines a1 and a2 to protrude in a dome shape.

[0035] A pair of opposing, approximately U-shaped score lines a3 are formed on both upper and lower ends of the approximately left-right center of the top lid 3. The pair of score lines a3 are configured so that the locking insertion portions 23a of the front and rear side panels 23 and the locking insertion portions 24a of the side panels 24 can be inserted into the pair of score lines a3 when assembled into the cooking box 1. The folding pieces 31 formed by the pair of score lines a3 can be folded along the bottom fold line a4 to be opened and closed, and can function as a chimney door.

[0036] Further, a pair of mounting grooves 5 extending in the up-down direction (left-right direction in FIG. 2) are formed in each of the left and right side plates 21 and 22. The mounting grooves 5 are formed by a vertical cut line b1 extending in the up-down direction (left-right direction in FIG. 2) and a pair of auxiliary cut lines b2 extending in the horizontal direction (up-down direction in FIG. 2) from the upper and lower ends of the vertical cut line b1.

[0037] In Figure 2, the upper pair of mounting grooves 5 formed on each of the side panels 21 and 22 are formed in positions facing each other across the axis of the body 2 (more precisely, a plane of symmetry extending in the front-to-back direction including the axis of the body 2) when assembled into the cooking box 1, and similarly, the lower pair of mounting grooves 5 are formed in positions facing each other across the axis of the body 2 when assembled into the cooking box 1.

[0038] The mounting groove 5 is substantially U-shaped. A pair of mounting grooves 5 formed on each of the left and right side plates 21 and 22 are arranged back-to-back with the U-shaped openings facing outward.

[0039] The left and right side plates 21 and 22 are provided with air adjustment holes 25 and 26 on the sides farther from the top lid 3, i.e., at positions corresponding to the lower parts. In addition, the left and right side plates 21 and 22 are formed with a pair of window grooves 27 and 28 that extend in the up-down direction (the left-right direction in FIG. 2) on either side of the air adjustment holes 25 and 26.

[0040] The window grooves 27 and 28 are substantially U-shaped. The pair of window grooves 27 (window grooves 28) are arranged back-to-back in this U-shape, that is, the opening of the U-shape faces outward.

[0041] The window groove portions 27 and 28 are formed from a vertical cut line n1 extending in the up-down direction (left-right direction in Figure 2) and a pair of auxiliary cut lines n2 extending horizontally (up-down direction in Figure 2) from the upper and lower ends of the vertical cut line n1, respectively.

[0042] A bottom flap 29 is connected via a bottom fold line a4 to the lower edge of each of the left and right side panels 21 and 22. A notch 30 is formed in the center of the bottom fold line a4.

[0043] Furthermore, the four corners of the paperboard 1X are provided with cutouts k so that the width (the length in the vertical direction in FIG. 2) is narrowed. This allows the lower part of the cooking box 1 to be fitted into the base plate 4 when assembled into the cooking box 1 as shown in FIG.

[0044] As shown in Fig. 3, a partition fold line c is formed in the cardboard 2X, which is made of corrugated cardboard, to partition the bottom plate 20 from the front and rear (left and right in Fig. 3) side plates 23 and 24. The bottom plate 20 and the front and rear side plates 23 and 24 are connected via the partition fold line c.

[0045] In addition, inner flaps 201 are connected to both side ends of the bottom plate 20 (top and bottom ends in FIG. 3) via fold lines c1. An insertion piece 202 is formed in the center of the fold line c1, with both ends formed by cut lines c2 that connect the fold line c1 and extend in a convex shape in a direction away from the fold line c1. A fold line c3 is formed on the base end edge of the insertion piece 202 at a position slightly closer to the bottom plate 20 than the fold line c1 and extending parallel to the fold line c1.

[0046] The front side panel 23 is provided with an opening / closing door section 9 formed in the center by a door fold line d and a door cut line d1 that connects both ends of the door fold line d and extends in a convex shape in a direction away from the door fold line d (to the right in Fig. 3). Approximately in the center of this opening / closing door section 9, a slit d2 extending in the horizontal direction (up and down direction in Fig. 3) and two slits d3 extending parallel to the slit d2 are formed. The slits d2 and d3 are configured to receive and hold an upper locking portion 83 and a lower locking portion 84 (described later) of a door section handle 8 formed with a U-shaped cross section.

[0047] An air adjustment hole 241 is provided in the rear side plate 24 on the side closer to the bottom plate 20, i.e., at a position corresponding to the lower part. In addition, a pair of window grooves 242 are formed in the rear side plate 24, each extending in the up-down direction (left-right direction in FIG. 3) on either side of the air adjustment hole 241.

[0048] The window groove 242 is substantially U-shaped. The pair of window grooves 242 are arranged back-to-back with the U-shaped openings facing outward.

[0049] The window groove portion 242 is formed from a vertical cut line n1 extending in the up-down direction (left-right direction in Figure 3) and a pair of auxiliary cut lines n2 extending horizontally (up-down direction in Figure 3) from the upper and lower ends of the vertical cut line n1, respectively.

[0050] Additionally, outer flaps 203 are connected to both side ends of each of the front and rear side panels 23 and 24 via fold lines d4. A plurality of outer flaps 204 are connected to the upper ends (the left and right ends in FIG. 3) of each of the front and rear side panels 23 and 24 via a plurality of fold lines d5. This makes it possible to support the dome-shaped protruding top cover 3. Furthermore, a pair of inner flaps 205 are connected to the center of the upper ends of each of the front and rear side panels 23 and 24 via a pair of fold lines d6.

[0051] Furthermore, locking insertion portions 23a and 24a are formed in the center of the upper end of each of the front and rear side plates 23 and 24. The locking insertion portions 23a and 24a are configured to be able to be inserted into a pair of cut lines a3 of the top lid 3, respectively. This allows the front and rear side plates 23 and 24 to be connected to the top lid 3 when assembled into the cooking box 1.

[0052] 9, the base plate 4 is composed of a bottom surface 41, front and rear side edges 42, and left and right side edges 43. The body part 2 can be fitted inside the base plate 4.

[0053] As shown in Fig. 4, a substantially rectangular bottom surface 41 is disposed in the center of a cardboard 3X made of corrugated cardboard. A pair of substantially rectangular front and rear sides 42 are connected to the bottom surface 41 at the left and right side edges in Fig. 4 via fold lines e. A substantially rectangular inner flap 421 is connected to each of the front and rear sides 42 at its leading edge via two fold lines e1. The front and rear sides 42 are constituted by the front and rear sides 42 and the inner flap 421 folded inward.

[0054] The inner flap 421 has a protruding portion 422 at its leading edge. A cut line e2 is provided in the center of the fold line e. The cut line e2 is formed so that the protruding portion 422 of the inner flap 421 can be inserted therein.

[0055] A pair of substantially rectangular left and right side edges 43 are connected to the bottom surface 41 via fold lines e3 at the upper and lower side edges in Fig. 4. A substantially rectangular inner flap 431 is connected to each of the pair of left and right side edges 43 at both ends via fold lines e4.

[0056] A cut line e5 is provided in the center of the fold line e3. This cut line e5 is formed so that an insertion piece 202 provided on the bottom plate 20 can be inserted therethrough.

[0057] 5, a pair of mounting sections 6, three air window sections 7, and a door handle 8 are formed on a corrugated cardboard board 4X at breakable lines f, g, and h. The mounting sections 6, the air window sections 7, and the door handle 8 are formed by breaking the board 4X along the breakable lines f, g, and h.

[0058] The placement portion 6 is made up of two insertion portions 61 and a connecting portion 62 that connects the base ends of the two insertion portions 61, which are connected via a fold line f1. The tip side of the insertion portion 61 protrudes into the internal space of the body portion 2, and the base end side is exposed to the outside of the body portion 2. A support notch 63 is provided in the vertical middle of the tip of the insertion portion 61, which extends from the tip to the base end and into which a plate-like member (such as a wire mesh) on which the food to be cooked is placed is inserted and supported.

[0059] The connecting portion 62 can be used as an operating portion to be held by hand when sliding the mounting portion 6 up and down along the mounting groove 5. A notch 64 is provided on one side of the connecting position (fold line f1) between the pair of insertion portions 61 and the connecting portion 62. As a result, the vertical length of the position where the fold line f1 of the mounting portion 6 is provided (corresponding to the "middle portion" of the present invention) is shorter than the length of the mounting groove 5. Furthermore, a notched recess 65 for a handhold is formed in the center of the lower end of the connecting portion 62.

[0060] The air window portion 7 is formed by connecting two insertion portions 71 with a connecting portion 72 that connects the base ends of the two insertion portions 71 via a folding line g1. The connecting portion 72 is formed in a shape that can cover the air adjustment holes 25, 26, and 241.

[0061] The air window portion 7 is bent into a U-shape when viewed in a plane, and the two bent insertion portions 61 (corresponding to the "tip portions" in this invention) 71 are each inserted into a pair of window groove portions 27, 28 and 242 and clamped at the peripheral edges of the window groove portions.

[0062] In addition, the vertical length of the position (fold line g1) where the air window portion 7 is clamped by the peripheral edges of the window groove portions 27, 28 and 242 is shorter than the length of the window groove portions 27, 28 and 242, and when the air window portion 7 is slid upward or downward along the window groove portions 27, 28 and 242, at least a portion of the air adjustment holes 25, 26 and 241 can be exposed.

[0063] The door handle 8 is attached to the opening / closing door 9 and is used to open and close the opening / closing door 9. The door handle 8 is composed of a connecting part 82, a pair of gripping parts 81 connected to the upper and lower side edges of the connecting part 82 via a fold line h1, an upper locking part 83 connected to the upper edge of the upper gripping part 81 via a fold line h2, and a pair of lower locking parts 84 connected to both left and right ends of the lower edge of the lower gripping part 81 via the fold line h2, respectively.

[0064] Hereinafter, the process of assembling the cooking box 1 of this embodiment will be described with reference to FIGS. 6A to 10B.

[0065] First, the process of assembling the bottom plate 20 and the front and rear side plates 23 and 24 from the paperboard 2X will be described with reference to FIGS. 6A to 6C.

[0066] In this assembly process, first, as shown in Fig. 6A, the left and right inner flaps 201 are folded upward at approximately 90° along the crease line c1 relative to the bottom plate 20. Then, the left and right insertion pieces 202 are pushed downward along the crease line c2, and further folded outward along the crease line c3 to a horizontal state.

[0067] Next, as shown in FIG. 6B, the front and rear side panels 23 and 24 are each folded at approximately 90° relative to the bottom panel 20 along the folding lines c1.

[0068] Next, as shown in FIG. 6C, the outer flaps 203 at both side ends of the front side panel 23 are each folded forward at approximately 90° along fold line d4 relative to the front side panel 23, and the multiple outer flaps 204 at the upper end of the front side panel 23 are each folded forward at approximately 90° along fold lines d5.

[0069] Similarly, the outer flaps 203 on both side ends of the rear side panel 24 are each folded backward at approximately 90 degrees along fold line d4 relative to the rear side panel 24, and the multiple outer flaps 204 on the upper end of the rear side panel 24 are each folded backward at approximately 90 degrees along multiple fold lines d5.

[0070] Next, the inner flaps 205 at the upper center of each of the front and rear side panels 23 and 24 are folded inward at approximately 90° along the fold lines d6 relative to the front and rear side panels 23 and 24. This forms U-shaped locking insertion portions 23a and 24a, respectively.

[0071] Next, the process of assembling the top cover 3 and the left and right side panels 21 and 22 from the paperboard 1X will be described with reference to FIGS. 7A to 7C.

[0072] In this assembly process, first, as shown in FIG. 7A, a pair of folding pieces 31 are folded upward at approximately 90° along bottom fold lines a4 relative to the top cover 3 to form a pair of openings 32 in the top cover 3.

[0073] Next, as shown in Fig. 7B, the locking insertion portions 23a and 24a of the front and rear side plates 23 and 24 are inserted into the pair of openings 32, respectively, to connect the top cover 3 to the front and rear side plates 23 and 24. The pair of openings 32 can function as a chimney. In addition, the pair of folding pieces 31 can be opened and closed as chimney doors, and the size of the chimney opening can be adjusted.

[0074] Next, the top cover 3 is folded downward along the two pairs of cover crease lines a1 and a2 to form a dome shape. Next, the left and right side panels 21 and 22 are folded downward along the partition crease line a. Next, the left and right insertion pieces 202 are inserted into the central notches 30 of the bottom crease lines a4 of the left and right side panels 21 and 22.

[0075] 7C, the bottom flaps 29 at the lower edges of the left and right side panels 21 and 22 are folded inward at approximately 90° along the bottom crease lines a4, respectively, to complete the assembly of the main body of the cooking box 1.

[0076] Next, the process of assembling the base plate 4 from the paperboard 3X will be described with reference to FIGS. 8A to 8C.

[0077] In this assembly process, first, as shown in FIG. 8A, the pair of left and right side edges 43 are folded upward at approximately 90° along the fold lines e1.

[0078] Next, as shown in FIG. 8B, the inner flaps 431 on both ends of each of the pair of left and right side edges 43 are folded inward at approximately 90° along the fold lines e4.

[0079] Next, as shown in Fig. 8C, the front and rear side edges 42 are folded upward at approximately 90° along the crease lines e, and the adjacent inner flaps 421 are folded inward at approximately 180° (mountain folds) along the two crease lines e1. This causes the inner flap 431 to be sandwiched between the side edges 42 and the inner flap 421. The protruding portion 422 of the inner flap 421 is then inserted into the cut line e2. The base plate 4 is thus assembled.

[0080] Next, the process of attaching the pair of placement sections 6, the three air window sections 7, and the door section handle 8 from the paperboard 4X will be described with reference to FIG.

[0081] The mounting portion 6 is removed by breaking it along the breakable line f from the paperboard 4X. Next, the pair of insertion portions 61 are folded approximately 90° along the pair of fold lines f1. Then, the pair of insertion portions 61 are inserted into the pair of mounting grooves 5. As a result, the pair of mounting portions 6 are attached to the main body of the cooking box 1.

[0082] The air window section 7 is removed by breaking it from the cardboard 4X along the breakable line g. Next, the pair of insertion sections 71 are folded approximately 90° along the pair of fold lines g1. Then, the pair of insertion sections 71 of each air window section 7 are inserted into the pair of window grooves 27 and 28 in the left and right side panels 21 and 22, respectively. Also, in the rear side panel 24, the pair of insertion sections 71 are inserted into the pair of window grooves 242. As a result, the three air window sections 7 are attached to the main body of the cooking box 1.

[0083] The door handle 8 is removed by breaking it from the cardboard 4X along the breakable line h. Next, the pair of gripping parts 81 are folded approximately 90° along the pair of fold lines h1. Next, the upper locking part 83 and the pair of lower locking parts 84 are inserted into the slits d2 and d3 formed in the opening and closing door part 9. Then, the upper locking part 83 and the pair of lower locking parts 84 are folded toward each other along the fold line h2. This allows the door handle 8 to be attached to the main body of the cooking box 1.

[0084] 10A and 10B, the lower part of the body of the cooking box 1, to which the mounting part 6, the air window part 7, and the door handle 8 are attached, is fitted into the base plate 4, and at the same time, the left and right insertion pieces 202 are inserted through the cut line e5 of the bottom surface 41 of the base plate 4 and then bent outward to a horizontal position. This completes the assembly of the cooking box 1.

[0085] In addition, Fig. 10A shows a state in which the opening and closing door section 9 is open, and a plate-shaped member (wire mesh, etc.) P on which the food to be cooked is placed, and a metal fitting (charcoal stand) S on which charcoal fire or the like serving as a heat source is placed are placed in the cooking box 1. In Fig. 10A, the placement section 6 is adjusted to the uppermost position, and the air window section 7 on the side is fully open. Fig. 10B is a perspective view seen from the back of the cooking box 1, and shows an example in which the air window section 7 of the rear side panel 24 is fully open, the placement section 6 is adjusted to the lowermost position, and the air window section 7 on the side is fully closed.

[0086] Next, the effects of this embodiment will be described.

[0087] In the cooking box 1 of this embodiment, the body 2, top lid 3, and placing portion 6, etc. are formed from flame-retardant treated paperboard (corrugated cardboard), so that it is lightweight, easy to carry, simple to assemble, and inexpensively and easily manufactured.

[0088] In the cooking box 1 of this embodiment, the vertical length of the middle part of the mounting portion 6 (the position of the fold line f1) is shorter than the length of the mounting groove portion 5, so that the mounting portion 6 can slide vertically along the mounting groove portion 5 and can be maintained in any position.

[0089] Therefore, the plate-like member (wire netting, etc.) P on which the food to be cooked is placed on the placement portion 6 can be adjusted to a desired height to finely adjust the heat. Therefore, pizza, pie, etc. can be easily cooked over charcoal.

[0090] In the cooking box 1 of this embodiment, the mounting groove portions 5 and mounting portions 6 are formed in two pairs, a total of four, at opposing positions across the axis of the body portion 2 (more precisely, a symmetrical plane extending in the front-to-rear direction including the axis of the body portion 2). This allows the plate-shaped member (wire mesh, etc.) P on which the food to be cooked is placed to be supported at four points, improving stability.

[0091] In the cooking box 1 of this embodiment, the placing portion 6 is provided with a support notch 63 located midway up and down from the tip end, extending from the tip end toward the base end, into which a plate-shaped member on which the food to be cooked is placed is inserted and supported, thereby enabling the plate-shaped member (wire mesh, etc.) P on which the food to be cooked is placed to be securely held.

[0092] In the cooking box 1 of this embodiment, the mounting groove portion 5 is formed in an approximately U-shape, so that when the mounting portion 6 is inserted, it can deform into a leaf spring shape with the area near the connecting ends of the pair of auxiliary cut lines b2 as a fixed end, allowing it to slide easily in the vertical direction, and the restoring force of this deformation can reliably hold the inserted mounting portion 6 in the desired position.

[0093] In the cooking box 1 of this embodiment, the pair of mounting grooves 5 formed on each of the left and right side plates 21 and 22 are formed so that the roughly U-shaped grooves face back to back, i.e., the openings of the U-shaped grooves face outward, so that when the mounting portion 6 is inserted, the outer walls of the vertical cut lines b1 press the pair of insertion portions 61 of the mounting portion 6 inward. This prevents the tips of the mounting portions 6 from moving away from each other and causing the plate-like members (wire mesh, etc.) to fall.

[0094] In the cooking box 1 of this embodiment, the mounting portion 6 is connected by the connecting portion 62, so that when the mounting portion 6 is slid up and down along the mounting groove 5, the connecting portion 62 can be used as an operating portion, facilitating the sliding operation. In addition, a notched recess 65 for a handhold is formed in the center of the lower end of the connecting portion 62, so that interference with the air window 7 can be avoided during the sliding operation.

[0095] In the cooking box 1 of the present embodiment, the body 2 is provided with air adjustment holes 25, 26, and 241, so that combustion air can be taken into the cooking box 1.

[0096] It also has an air window portion 7 which covers the air adjustment holes 25, 26 and 241, and the vertical length of the position where this air window portion 7 is clamped by the periphery of the window groove portions 27, 28 and 242 is smaller than the length of the window groove portions 27, 28 and 242.Since this makes it possible to adjust the amount of air taken in through the air adjustment holes 25, 26 and 241, it becomes possible to fine-tune the flame power.

[0097] Similarly, in the cooking box 1 of this embodiment, the opening 32 is provided in the top lid 3 as a chimney, so that combustion air can be taken in or smoke can be exhausted from the inside of the cooking box 1. Also, the size of the chimney opening of the opening 32 can be adjusted by swinging the fold piece 31 along the fold line a4.

[0098] In addition, in the cooking box 1 of this embodiment, the opening / closing door section 9 is provided on the body section 2, which makes it easy to install a plate-shaped member (such as a wire mesh) P on which the food to be cooked is placed, install a heat source such as a charcoal fire, and take the food to be cooked in and out. In addition, the opening / closing door section 9 is formed by the door fold line d and the door cut line d1 that connects both ends of the door fold line d and extends in a convex shape in the direction away from the door fold line d, so it can be manufactured cheaply and easily.

[0099] In the cooking box 1 of this embodiment, the insertion piece 202 connected to the left and right side panels 21 and 22 can be folded outward along the fold line c3, so that the insertion piece 202 can be used as a weight holder, a stake holder, or even as a handle.

[0100] Next, a modification of the cooking box 1 of this embodiment will be described.

[0101] [Variations] In the cooking box 1 according to the embodiment described above, the placement groove 5 is configured with a vertical cut line b1 extending in the up-down direction and an auxiliary cut line b2 extending horizontally from at least one of the upper and lower ends of the vertical cut line n1, but the present invention is not limited to this. For example, as shown in FIG. 11(A), in a first modified example, a pair of placement grooves 5A is formed with a pair of vertical cut lines b1 extending in the up-down direction at each of positions facing each other across the axis of the body 2, and auxiliary cut lines b2 extending horizontally from the upper and lower ends of the vertical cut line b1, and further, a plurality of auxiliary cut lines b3 extending horizontally may be provided in the vertical middle of the vertical cut line b1. In FIG. 11, only the left or right side plate portion of the paperboard 1X is shown.

[0102] In this way, by providing a plurality of auxiliary cut lines b3 extending horizontally in the vertical middle of the vertical cut line b1 of the mounting groove portion 5A, when the mounting portion 6 slides vertically along the mounting groove portion 5A, a clicking sensation is created and the mounting portion 6 can slide in stages, making it easy to adjust the height.

[0103] Also, for example, as shown in Fig. 11(B), in the second modified example, the pair of mounting grooves 5B may be configured with a vertical cut line b1 extending in the up-down direction and horizontal auxiliary cut lines b4 extending in the left-right direction from the upper and lower ends of the vertical cut line b1. That is, they may be configured in an I-shape. In this case, when the mounting portion 6 is inserted, the pair of insertion portions 61 of the mounting portion 6 are held down by the outer walls of the vertical cut line b1 due to the deformation restoring force of the both side walls of the vertical cut line b1, so that the mounting portion 6 can be reliably held at any position on the vertical cut line b1, and the plate-like member (wire net, etc.) P on which the food to be cooked is placed can be reliably supported.

[0104] In the above embodiment, the pair of mounting grooves 5 are formed from the vertical cut line b1 and the auxiliary cut line b2 extending horizontally from the upper and lower ends of the vertical cut line b1, but the present invention is not limited to this. For example, the pair of mounting grooves 5 may be formed from the vertical cut line b1 and the auxiliary cut line b2 extending horizontally from either the upper end or the lower end of the vertical cut line b1. That is, they may be L-shaped. They may also be formed from the vertical cut line b1 and the auxiliary cut line b2 extending horizontally from the middle of the vertical cut line b1. That is, they may be U-shaped. Furthermore, the auxiliary cut line b2 may be omitted.

[0105] In the above embodiment, an example has been described in which the support notch 63 is provided midway in the vertical direction between the tip ends of the pair of insertion parts 61 of the placement part 6, extending from the tip to the base end and into which a plate-shaped member (wire mesh, etc.) on which the food to be cooked is placed is inserted and supported, but the present invention is not limited to this. For example, the support notch 63 may not be provided and the plate-shaped member (wire mesh, etc.) P on which the food to be cooked is placed may be placed on the upper end of the insertion part 61.

[0106] In the above embodiment, an example has been described in which a total of three air adjustment holes 25, 26, and 241 are provided in the left and right side plates 21 and 22 and the rear side plate 24, but the present invention is not limited to this. For example, the air adjustment holes 25 and 26 may be provided only in the left and right side plates 21 and 22, or none may be provided at all.

[0107] In the above embodiment, the outer flaps 203 at both ends of the front side plate 23 and the outer flaps 204 at the top are folded forward at approximately 90° relative to the front side plate 23, and the outer flaps 203 at both ends of the rear side plate 24 and the outer flaps 204 at the top are folded backward at approximately 90° relative to the rear side plate 24. However, the present invention is not limited to this. For example, they may be folded inward (toward the body). In this case, the cooking box 1 looks better from the outside.

[0108] In the above embodiment, the body 2 is made of the paperboards 1X and 2X, but the present invention is not limited to this. For example, the body 2 may be a so-called A-type cardboard box.

[0109] In the above embodiment, the bottom plate 20 and the bottom board 4 are provided, but the present invention is not limited to this. For example, the bottom side may not be provided with cardboard, and a heat source such as a charcoal fire may be placed directly on the ground.

[0110] In addition, in the above-described embodiment, corrugated cardboard has been used as an example of the material, but the material may be cardboard or a thin synthetic resin plate that has been treated to be flameproof, as long as it can be folded and assembled.

[0111] In the above embodiment, the cooking box 1 is used to cook pizza, pie, etc., but the present invention is not limited to this. For example, it may be used to smoke fish, meat, etc.

[0112] The present invention is not limited to the above-described embodiments, and its technical scope includes various modified forms of design within the scope that does not deviate from the gist of the invention described in the claims. [Explanation of symbols]

[0113] 1 Cooking Box 2. Torso 20 Bottom plate 201 Inner flap 202 Insert 21, 22 Left and right side panels 23 Front side panel 24 Rear side panel 23a, 24a Locking insertion part 25, 26, 241 Air adjustment holes 27, 28, 242 Window groove 29 Bottom flap 3 Top lid 30 Cutting 31 Folded piece 4 Bottom board 41 Bottom 42 Front and rear sides 421, 431 Inner flap 422 Convex 43 Left and right sides 5, 5A, 5B Groove for mounting 6 Placement section 61 Insertion section 62 Connecting part 63 Support cutout 64 Notch 7 Air window 71 Insertion section 72 Connecting part 8 Door handle 81 Insertion section 82 Connecting part 83 Locking part 84 Cutout 9 Opening and closing door a Compartment fold line a1 Lid fold line a3 fold line A4 bottom fold line b1 Vertical cut line b2, b3, b4 Auxiliary cutting lines c Compartment fold line c1 Inner flap fold line c2 Outer flap fold line d Door fold line d1 Door cut line d2, d3 cutting line e, e1, e3, e4 fold lines e2, e5 cutting line f Breakable line f1 fold line g Breakable wire g1 fold line h Breakable line h1, h2 crease line k Cutout n1 Vertical cut line n2 Auxiliary cut line P Plate-shaped material (wire mesh, etc.) S metal fittings (charcoal stand)

Claims

1. A cooking box made of fireproof paperboard, the cooking box having a cylindrical body extending in the vertical direction, an upper lid closing an upper end opening of the body, a pair of mounting grooves provided in the body and extending in the vertical direction at positions facing each other across the axis of the body, and a pair of mounting parts inserted into the pair of mounting grooves, with tip sides protruding into the interior space of the body and base sides protruding outside the body, and with intermediate parts between the tip and base ends being sandwiched by the periphery of the mounting grooves, A cooking box, characterized in that the vertical length of the middle portion of the mounting portion is shorter than the length of the mounting groove portion.

2. The cooking box according to claim 1, A cooking box characterized in that the placing portion has a support notch at the vertical middle of the tip portion, extending from the tip portion to the base end, into which a plate-shaped member on which the food to be cooked is placed is inserted and supported.

3. In the cooking box according to claim 1 or 2, A cooking box characterized in that the mounting groove portion has a vertical cut line extending in the up-down direction and an auxiliary cut line extending horizontally from the vertical cut line.

4. The cooking box according to claim 3, The mounting grooves are formed in pairs, a total of four, at positions facing each other across the axis of the body, The mounting portions are formed in pairs, a total of four, at positions facing each other across the axis of the body portion so as to correspond to the mounting groove portions, A cooking box characterized in that the set of mounting portions are connected by a connecting portion connecting each base end.

5. The cooking box according to claim 1, An air adjustment hole provided in the body portion and penetrating the inside and outside of the body portion; A pair of window grooves are provided in the body and extend vertically with the air adjustment hole therebetween; an air window portion that is bent into a U-shape in a plan view, and in a state where each of the bent tip portions is inserted into the pair of window grooves and is sandwiched by the peripheral edges of the window grooves to cover the air adjustment hole, The cooking box is characterized in that the vertical length of the air window portion at the position where it is clamped by the peripheral edge of the window groove portion is smaller than the length of the window groove portion, and when the air window portion is slid upward or downward along the window groove portion, at least a portion of the air adjustment hole is exposed.

6. The cooking box according to claim 1, The cooking box is characterized in that the body portion is provided with an opening and closing door portion formed by a door fold line and a door cut line connecting both ends of the door fold line and extending convexly in a direction away from the door fold line.

7. The cooking box according to claim 3, A cooking box characterized in that the mounting groove portion has an auxiliary cut line extending horizontally in the vertical middle portion of the vertical cut line.

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