JP4395665B2 - Assembled outdoor furnace - Google Patents

Description

  The present invention relates to an assembly-type simple outdoor furnace. More specifically, the present invention relates to an outdoor furnace that is suitable for outdoor use in a campsite or the like and can be easily disassembled and stored compactly.

  It is a major premise that outdoor furnaces used in campsites, etc. can sufficiently function as furnaces, but they are easy to disassemble and assemble, and easy to store after disassembly. The storage form is required to be compact and suitable for portable use. In addition, it is also important to be environmentally friendly in recent years. Specifically, in addition to protecting the environment at the campsite used, it is durable and can withstand repeated use over a long period of time, so that resources can be used effectively. It is hoped that.

  Various assembly-type outdoor furnaces are also known in the prior art, and among them, an outdoor portable furnace that collects dead trees and the like and uses it as fuel is disclosed (for example, see Patent Document 1). According to the portable furnace disclosed in this document, a wind receiving plate in which plate members are assembled in a cross shape is provided at the bottom, a mounting tool for mounting fuel is placed thereon, and a pyramid is further provided thereon. There is a trapezoidal windshield. A mesh body is stretched at the opening of the mounting tool, the air passing through the mesh body from the wind receiving plate burns fuel such as dead wood, and the fire rises through the windshield cylinder and is placed on the top, Heat a cooking container such as a kettle. In order to support the cooking container, a mounting plate in which a thin plate is crossed is further placed on the windshield.

According to the above configuration, since the mesh body of the placing plate on which the fuel is placed is knitted very densely, it is assumed that ash and the like generated by combustion hardly fall downward. In addition, the pyramid-shaped windshield that transmits the fire after combustion upwards is inclined so as to shrink upward, thereby concentrating weak thermal power caused by combustion of dead trees and the like to efficiently concentrate the thermal power. It is configured to be used.
JP-A-10-127498

  However, there has been room for improvement in the outdoor portable furnace disclosed in the above-described prior art. First, even if the mesh body of the mounting plate on which fuel such as dead wood is placed is densely knitted, it is inevitable that the burned ash passes through the mesh body and falls. Under the mounting plate, there is only a wind receiving plate that is formed by crossing thin plates into a cross shape and standing upright on the ground, and the ash that has fallen from the mesh body falls directly onto the ground surface. This is not preferable for environmental protection. In recent years, there has been a movement to prohibit such ashes and other wastes from dropping directly onto the ground. Although it is possible to lay a separate iron plate or the like under the furnace, it is inconvenient that the portable furnace alone does not support this. Further, if the mesh body is made too dense to prevent the ash from falling, the mesh body is clogged with ash this time, and the supply of oxygen becomes insufficient.

  In addition, the pyramid-shaped windshield cylinder formed by four sides for guiding the fire upward is provided with hinges at the center of the two sides facing each other in consideration of storage after assembly, and at the abutting portions of the adjacent four sides. The two sides are folded into a V shape and stored flat. In such a structure, it becomes extremely difficult to clean the inside which becomes dirty due to the combustion of combustible materials. There is a problem that sufficient cleaning cannot be performed because it is necessary to clean the inner surface of the cylinder while holding a cylindrical one, and it is also necessary to remove strong dirt accompanying combustion. Moreover, since the truncated pyramid shape is configured to shrink upward due to thermal power, the heating range is limited, and heating other than the cooking container, such as grilled meat using a net, is extremely restricted. The configuration that contracts upward also has a problem that dirt due to combustion tends to adhere. Further, since the hinges are provided, the structure is complicated, and the manufacturing is troublesome.

  In addition, and more importantly, the portable ovens according to the prior art were not durable enough. Since most components are exposed to high heat in the furnace, it is necessary to use metal materials such as iron and stainless steel. However, to make it portable, the thickness of each component is reduced to reduce the weight. It is necessary to do. However, conversely, when the plate thickness is reduced, the components are inevitably deformed by high heat. If this deformation exceeds a certain limit after several uses, even if the furnace is disassembled after use, it will not be able to be folded well, and the specified storage will not be possible. For this reason, portable ovens according to the prior art have to be disposed of after a small number of uses, causing problems such as being discarded in large quantities at campsites and the like. Moreover, such a situation has also caused a waste of resources.

  As described above, the present invention solves the problems in the prior art as described above, is easy to disassemble and assemble, is compact and suitable for carrying, and is resistant to thermal deformation and has excellent durability. The purpose is to provide.

  The present invention prevents the ash from falling directly to the ground surface, including the pedestal element in the outdoor furnace assembly itself, and has a rugged structure in which each component is mutually restrained. The problem mentioned above is solved by increasing the rigidity of the furnace, and specifically includes the following contents.

  That is, according to one aspect of the present invention, there are provided a support plate part for supporting the whole, a base box having a mesh body at a central part attached on the support plate part, and a furnace attached on the base box. A portable outdoor furnace that can be disassembled and assembled from a frame plate part, and is disposed below the support plate part to attach the support plate part, and receive ash generated when the furnace is used. The present invention relates to a field furnace characterized by further including a pedestal plate that prevents ash from directly falling onto the ground surface and shields the influence of heat on the ground surface.

  When disassembling / accommodating the outdoor furnace, either one of the table box and the base plate is used as a container, and the other is used as a lid, and the other elements can be configured to be collectively stored therein. it can. As a specific example, on a pair of opposing sides of the pedestal plate in a rectangular shape, a height portion that rises at a right angle from the plane of the pedestal plate, and further bent at a right angle from the height portion in a direction facing each other A rail portion extending in parallel with the plane is provided, the table box (40) can be inserted into the rail portion in a drawer shape, and the other elements can be stacked and stored together in the table box. .

  The support plate portion may be composed of a pair of support plates each having a slit provided in the opposite direction so as to extend to a half length in the height direction so as to be inserted in an X shape in the middle in the left-right width direction. . Each support plate is provided with a horizontal slit provided in a horizontal direction at a height corresponding to the height portion of the pedestal plate from below the left and right ends, and when the furnace is assembled, The support plate portion can be attached to the pedestal plate by inserting a rail portion, and both can constrain the other side to prevent thermal deformation.

  It is possible to provide a constricted portion having a narrow width in the length direction of the rail portion, and attach the support plate portion to the pedestal plate so as to form an X shape within the constricted portion. Accordingly, the support plate portion can prevent the rail portion from moving in the length direction. Alternatively, by providing a pair of holes with a predetermined gap in each height part of the pedestal plate and inserting the lower side of the horizontal slit provided in the horizontal direction into the hole, the rail part by the support plate part The movement in the length direction may be prevented.

  Each support plate is provided with holding hooks bent in an L shape extending in opposite directions at the upper ends of both left and right end portions, and a pair of support plates inserted in an X shape when the furnace is assembled. Can be attached by being inserted in the horizontal direction so as to penetrate through the space surrounded by the four holding hooks formed by the above. Thereby, at the time of furnace use, a support plate part and a base box mutually restrain the other party, and can prevent a thermal deformation.

  The furnace frame plate part can be formed in a truncated pyramid shape that expands from below to above by four furnace frame plates. The four furnace frame plates are provided with a pair of receiving frame plates provided with slits in the vicinity of both left and right ends, and a pair of differences provided with insertion tabs inserted into the slits of the receiving frame plates on both left and right ends. It can comprise from a furnace frame board. The insertion tab of each differential furnace frame plate has a protruding portion that restrains the receiving frame plate from behind and prevents thermal deformation outside in the insertion direction while being inserted into the slit. it can. The difference furnace frame plate may further include a fixing hook that is inserted into another slit provided in the receiver frame plate and restrains the furnace frame plate from behind to prevent thermal deformation.

  The front end of the holding hook of each support plate can be formed so as to abut on the outer surface of the receiving frame plate inserted into the stand box while the support plate portion holds the stand box. With this configuration, when the furnace is assembled, the tip maintains the furnace frame plate in a predetermined inclined state to facilitate the assembly of the furnace frame plate portion, and when the furnace is used, the tip of the protruding portion holds the furnace frame plate. There is an effect of restraining thermal deformation of the receiving frame plate by restraining from behind.

  At the lower end of each furnace frame plate, a mounting tab to be inserted into a slit provided in the table box is provided, and at least a part of the tab is inserted in a state of being inserted into the slit of the table box. It can abut against the surface of the support plate outside in the direction to restrain the support plate and prevent thermal deformation.

  The outdoor furnace is further provided with a fuel holding portion attached inside the furnace frame plate portion, a second furnace frame plate portion having a double structure of the furnace frame plate portion, or a quadrilateral furnace frame plate portion. Any of the adjustment plates attached to the upper corner portions can be included.

  The fuel holding portion may be composed of a pair of support rods and a net body fixed to a central portion of the support rod. A pair of furnace frame plates facing one of the furnace frame plate portions is provided with a key-like hole having a narrow portion for inserting the support rod, and on the other hand, at each tip of the pair of support rods Is provided with a reduced diameter groove inserted into the narrow part of the key-like hole, and the reduced diameter groove of the support rod is inserted into the narrow part of the key-like hole so that the fuel holding part is opposed to the pair of opposed furnaces. Can be attached to the frame plate. Thereby, the support rod can restrain the pair of opposed furnace frame plates to prevent thermal deformation of the furnace frame plates.

  By implementing the present invention, it is possible to provide an outdoor furnace that can be easily used for outdoor leisure, can be stored compactly, and is convenient to carry. For camping sites, an outdoor furnace that can further contribute to environmental conservation will be provided.

  Hereinafter, an outdoor furnace according to an embodiment of the present invention (hereinafter, also simply referred to as “furnace”) will be described with reference to the drawings. FIG. 1 shows an outline of an outdoor furnace according to the present embodiment, and FIGS. 2 and 3 individually show its constituent elements. In FIG. 1, the furnace 1 according to the present embodiment includes a pedestal plate 20, a support plate 30 that is placed on the pedestal plate 20 and supports the entire furnace 1, and a support plate 30. It is mainly comprised from the base box 40 fixed and the furnace frame board part 50 assembled on the base box 40. FIG. FIG. 1 further shows a fuel holding unit 60 and an adjustment plate 70 on which a net or the like can be placed as an option. Here, in this specification, the direction toward the ground surface of the furnace 1 is referred to as the downward direction, the direction in which the object to be heated is placed on the contrary is referred to as the upward direction, and the direction orthogonal thereto is referred to as the horizontal or horizontal direction. .

  As shown in FIG. 2A, the base plate 20 is made by processing a substantially rectangular plate material. A pair of opposing sides of a rectangular shape rises at a right angle from the plane of the pedestal plate 20 to form a height portion 21, and is bent at a right angle from the height portion 21 to be parallel to the plane in a direction facing each other. The rail part 22 which became the U-shape extended is formed. A constricted portion (narrow portion) 23 is provided in the central portion in the length direction of the rail portion 22 to enable attachment of a support plate portion 30 described later. The pedestal plate 20 according to the present embodiment uses a 1 mm thick stainless steel plate. The plate thickness is desirably as thin as possible from the viewpoint of weight reduction, but there is a limit when the strength and thermal deformation are taken into consideration. The same applies to each component described below.

  FIG. 2B shows a receiving support plate 31 and a differential support plate 32 that constitute the support plate portion 30. Both of them have basically the same shape, but a vertical slit 33 for assembling is provided so as to extend in the opposite direction to half the height, thereby enabling the insertion of both support plates 31 and 32. . By inserting the longitudinal slits 33 and 33, the support plate portion 30 crossed in the X order is completed. A horizontal slit 34 into which the rail portion 22 of the pedestal plate 20 is inserted is provided at both ends in the left-right direction of each support plate 31, 32, and a holding hook 35 into which a later-described base box 40 is inserted is provided above. .

  FIG.2 (c) shows the base box 40 which mounts fuels, such as charcoal, and attaches the furnace frame board part 50 located upward. The base box 40 is formed in a box shape as a whole by bending four sides of the plate material at right angles in the same direction and welding the bent ends. This shape is effective for preventing its own thermal deformation, supporting other attached components to prevent these thermal deformations, and accommodating each component after disassembly. In addition, the table box 40 may support heavy objects such as a pan and a kettle at the upper side, and is made of a relatively thick 2 mm stainless steel in the present embodiment.

  A central portion of the base box 40 is opened, and a mesh body 41 having a mesh attached to a flat plate as shown in the figure is fixed by means such as spot welding. A fuel such as charcoal can be placed on the mesh body 41 and burned, and the air introduced from below is allowed to pass through and the function of receiving the ash emitted after combustion is also achieved. However, in the outdoor furnace 1 according to the present embodiment, as shown in FIG. 1, a pedestal plate 20 is further provided below, and the pedestal plate 20 receives falling ash. The body 41 need not be extremely dense. In the drawing, the mesh body is displayed in a net shape, but it is also possible to use a punching metal or the like in which a large number of holes are formed in a vertical and horizontal matrix on the plate material.

  In the present embodiment, a total of six holding slits 42 for receiving fixing ribs provided below the furnace frame plate part 50 to be attached later are provided in the base box 40 to enable the furnace frame plate part 50 to be held. ing.

  Next, FIG. 3 (a) shows a furnace frame plate 51 constituting the furnace frame plate portion 50 surrounding the combustion chamber of the furnace, and FIG. 3 (b) shows both furnace frame plates of the differential furnace frame plate 52. Yes. In the present embodiment, both the furnace frame plates 51 and 52 are made of a stainless steel plate having a thickness of 1.2 mm, and a bending portion 53 is provided at an upper edge portion that contacts the heating frame (opening portion). In addition to ensuring safety against injuries, it has increased rigidity against its own thermal deformation. The receiving frame plate 51 shown in FIG. 3A is provided with two fixing ribs 54 to be inserted into the holding slit 42 of the table box 40 below, and for attaching the differential frame plate 52 to be inserted later. Inclined slits 55 (55a, 55b) are provided on both the left and right sides. Further, a pair of key-like holes 56 each having a round hole and a narrow part are formed near the center, and this is used to fix an optional fuel holding part 60 described later.

  3B is provided with insertion tabs 57 at both left and right ends, and the insertion tabs 57 are inserted into inclined slits 55a provided in the receiving frame plate 51. In this inserted state, the protrusion 58 provided at the lower end of the insertion tab 57 can restrain the receiving frame plate 51 from the back in the insertion direction (outside of the furnace). It acts to prevent deformation. Similarly, fixing hooks 59 provided above the left and right ends of the difference furnace frame plate 52 are inserted into another inclined slit 55b of the receiver frame plate 51 to restrain the receiver frame plate 51 from the back (same as above). . One fixing rib 54 to be inserted into the holding slit 42 of the table box 4 is provided at the lower end of the differential furnace frame plate 52 according to the present embodiment. Although the number of the fixing ribs 54 can be two as in the case of the receiving frame plate 52, the merit of avoiding erroneous assembly is born by changing the number between the two. The bent portion 53 is provided at the upper edge that contacts the heating frame (opening) in the same manner as the receiving frame plate 51. In the example shown in the figure, a through-hole is formed in the lower part of the middle part, so that auxiliary air can be introduced into the furnace.

  A pair of each of the receiving frame plate 51 and the differential frame plate 52 is used, and at the time of assembling, a pair of each facing each other forms a truncated pyramid type furnace main body portion that expands upward, A bending portion 53 provided on the upper edge constitutes a heating frame of a quadrilateral furnace.

  FIG. 3C shows an optional fuel holding unit 60 including a pair of support rods 61 and a net body 62 fixed on the support rods 61. A groove 63 having a reduced diameter is provided at the tip of each support rod 61, and the groove 63 is inserted into each of the key-shaped holes 56 of the pair of receiving frame plates 51, thereby the fuel holding unit 60 is connected to the furnace frame plate. The furnace main body part enclosed by the part 50 is comprised.

  FIG. 3D shows an adjustment plate 70 that is also an option. A total of four adjustment plates 70 can be attached to each corner portion of the furnace frame plate portion 50 as shown in the uppermost part of FIG. As shown in FIG. 3 (d), the adjustment plate 70 has a long slit 71 and a short slit 72 with the central axis in the longitudinal direction symmetrical, and each of the slits 71 and 72 is the furnace frame plate portion described above. It can be attached by being inserted into the receiving frame plate 51 and the differential frame plate 52 which are in contact with each other at the 50 corners. By attaching a total of four adjustment plates 70, the effect of grasping and restraining both furnace frame plates 51 and 52 is produced, and it is also used as a net holder when using the outdoor furnace 1 for grilling meat. Can do. The height of the net can be adjusted depending on which direction of the slits 71 and 72 is inserted into the furnace frame plate portion 50.

  Next, the assembling operation of the outdoor furnace 1 according to the present embodiment configured as described above will be described with reference to FIGS. First, in FIG. 4, the vertical slits 33 of the both support plates 31 and 32 are inserted to form an X-shaped support plate portion 30, which is attached to the base plate 20. At this time, the entire support plate portion 30 is fitted through a constricted portion 23 provided on the rail portion 22 of the pedestal plate 20, and the rail portion 22 is inserted into a horizontal slit 34 provided below both the support plates 31 and 32. Secure with. As a result, the vertical movement of the support plate 30 is constrained, and the horizontal movement is constrained by the lengthwise end of the constricted portion 23. This restraint has the effect that the base plate 20 prevents thermal deformation of the support plate portion 30 and simultaneously the support plate 30 also prevents thermal deformation of the base plate 20.

  Although not shown, the following alternatives can be considered to restrict the horizontal movement of the support plate 30. One is to make a pair of holes in the height portion 21 of the pedestal plate 20 spaced in the length direction. When both the support plates 51 and 52 are inserted into the rail portion 22, the end portions of the support plates 51 and 52 located below the lateral slit 34 are fitted into the holes provided in the height portion 21. The movement of the plate part 30 can be restricted. In another measure, a stopper member that closes the gap (inside of the U shape) of the rail portion 22 is fixed to one end side in the length direction of the rail portion 22 by welding or the like. As the stopper member, a plate material, a bar material, or the like can be used. The horizontal movement of the support plate 30 can be regulated by inserting the support plate 30 into the rail 22 and sliding it so that its tip abuts against this stopper member on one end of the rail 22. it can.

  Subsequently, in FIG. 5, the table box 40 is slid horizontally in the virtual space formed by the four holding hooks 35 above the support plates 31 and 32 as indicated by the broken line arrows. And fix. Since the table box 40 is restrained in the vertical direction by the four holding hooks 35, this prevents thermal deformation. At the same time, thermal deformation of the support plate portion 30 is prevented by the table box 40 via the holding hook 35.

  Next, in FIG. 6, the pair of receiving frame plates 51 in the furnace frame plate portion 50 are inserted into the holding slits 42 provided in the table box 40 by inserting the fixing ribs 54 below, into the table box 40. Install. In this state, as shown by the receiving frame plate 51 located on the left side of the figure, the front end of the holding hook 35 in the support plate portion 30 comes into contact with the outer surface of the receiving frame plate 51 from behind, and the receiving frame plate 31 is As a result, it is temporarily held in an inclined state. If the fixing rib 54 of the receiving frame plate 51 is simply inserted into the holding slit 42 of the stand box 40, the receiving frame plate 51 may be unstable and fall down. Since the holding hook 35 abuts from the outer surface and supports the receiving frame plate 51 from behind, the receiving frame plate 51 can stand on its own. This makes it very easy to insert the subsequent differential frame 52. Extremely, if there is no contact support by the holding hook 35, it may be difficult to assemble the four furnace frame plates 51 and 52 alone. Thus, in the present invention, the assemblability is greatly improved by skillfully utilizing the holding hook 35.

  In addition, although not shown in the drawing, a total of four fixing ribs 54 in the pair of receiving frame plates 51 project downward after passing through the holding slit 42 of the base box 40, and the tips of the fixing ribs 54 are The back side of the table box 40 is in contact with the surfaces of the support plates 31 and 32 of the support plate 30. As a result, the movements of the support plates 31 and 32 are restrained to prevent thermal deformation of the support plates 31 and 32, and the holding posture of the receiving frame plate 51 itself is also maintained.

  Subsequently, in FIG. 7, the remaining pair of differential furnace frame plates 52 (only one on the left side is shown in the figure) in the furnace frame plate part is mounted on the fixed rib 54 (see FIG. 3b) provided below. It inserts into the holding slit 42 (refer FIG. 6) provided in the box 40, and it attaches by inserting the insertion tab 57 in both sides in the inclination slit 55a provided in the receiving frame 51. At the same time, the fixing hooks 59 at both upper ends of the difference furnace frame plate 52 are inserted into another inclined slit 55 b of the furnace frame plate 51. The protrusion 58 extending below the insertion tab 57 and the fixing hook 59 restrain the receiving frame plate 51 from behind the receiving frame plate 51 (outside the furnace) to prevent thermal deformation. Also. By inserting the insertion tab 57 and the fixing hook 59 into the inclined slits 55a and 55b, the differential frame plate 52 itself is also restrained and thermal deformation is prevented. In FIG. 7, one sheet on the front side of the difference furnace frame plate 52 is not shown, but it is inserted and attached to the base box 40 and the furnace frame plate 51 in the same manner. In the case where the difference furnace frame plate 52 is also provided with two fixing ribs 54, the effect of preventing thermal deformation of the support plate portion 30 is obtained by the fixing ribs 54 as in the case of the receiving frame plate 51.

  Next, the fuel holding part 60 as an option is burned surrounded by the furnace frame plates 51 and 52 by inserting the tip ends of the pair of support rods 61 into the key-like holes 56 provided in both the furnace frame plates 51. Fixed indoors. Since the pair of receiving frame plates 51 are inclined so as to expand upward, the support rod 61 can be easily inserted. And since the attachment hole is the key-shaped hole 56, the groove part 63 (refer FIG. 3c) in the edge part of the support rod 61 once inserted falls in the narrow part of the key-shaped hole 56, and it receives a furnace. The movement of the frame plate 51 in the plate thickness direction is restricted, thereby preventing thermal deformation. Finally, although not shown in FIG. 7, another optional adjustment plate 70 is inserted into each of the four corner portions of the quadrilateral heating frame formed by the furnace frame plate portion 5. Is completed.

  The whole image of the outdoor furnace 1 according to the present embodiment assembled as described above is shown in FIG. 1, and a partial perspective view seen from the front is shown in FIG. In particular, in FIG. 8, when using the outdoor furnace 1, first, rolled newspaper or the like is placed on the fuel holding unit 60, and a fuel 65 such as charcoal is placed thereon. Arrangement of the rolled paper under the fuel 65 at the time of ignition facilitates the ignition of fire, etc., which is the same as that in ordinary furnace handling. Once the fuel 65 is ignited, the flow of air obstructed in any region defined by the X-shaped support plate portion 30 is indicated by an arrow regardless of the wind direction. The oxygen is supplied to the fuel 65 through the fuel holding unit 60 through the mesh body 41. Although it is preferable to use the optional fuel holding unit 60 because a sufficient gap is provided between the fuel 65 and the pedestal box 40 and air can be smoothly introduced, the fuel holding unit 60 is preferably used. A combustible material may be placed directly on the mesh portion 41 of the table box 40 and burned without being used.

  As the combustible material burns, the furnace frame plate portion 50 is filled with fire and is led to a quadrilateral heating frame formed at the upper end of the furnace frame plate portion 50. The outdoor furnace 1 according to the present invention has a truncated pyramid structure in which the furnace frame plate portion 50 expands upward, so that it is possible to use thermal power in a wide area, and heating of pots and kettles. Besides, it is also suitable for use in grilled meat and grilled fish. As shown in FIG. 8, by inserting the adjustment plate 70 into the four corner portions of the furnace frame plate portion 50, the height from the heat source to the object to be heated and the use area can be adjusted. A grill net 80 or the like can be placed. As described above, the adjusting plate 70 also plays a role of firmly maintaining the interconnection relationship between the receiving frame plate 51 and the differential furnace frame plate 52 constituting the furnace frame plate portion 50.

  Most of the ash generated by the burning of combustibles such as charcoal passes through the fuel holding unit 60 and first falls into the table box 40. Since the ventilation mesh body 41 provided in the table box 40 is configured relatively densely, a part of the ash is held here. However, the remaining ash also passes through the mesh body 41 and finally falls to the base plate 20. In any case, in the outdoor furnace 1 according to the present invention, the presence of the pedestal plate 20 prevents the ash discharged after combustion from falling directly to the ground surface. This not only avoids contamination of the ground surface, but also contributes to comprehensive environmental protection such as shielding the influence of heat on the ground surface.

  When the outdoor furnace 1 is used, it is exposed to high heat up to the furnace frame plate part 50, the base box 40, the support plate part 30, and the pedestal board 20 surrounding the surroundings by combustion of combustible materials such as charcoal. In the outdoor furnace 1 according to the present embodiment, as described so far, the members are firmly bound to each other, or are in contact with each other and supported from behind. Can be effectively protected from thermal deformation. In fact, according to experiments conducted by the inventors of the present application, even when the outdoor furnace 1 was repeatedly used, visible thermal deformation was almost zero. For example, in the portable furnace shown in Patent Document 1, it can be said that this is epoch-making when it is considered that the portable furnace is folded only after being used several times and is thermally deformed so as to be difficult to store.

  The disassembling procedure after use of heating may be carried out in the reverse order of the assembly procedure described above, and is extremely easy. That is, first, if the adjustment plate 70 is used, it is extracted, and the fuel holding unit 60 placed in the combustion chamber is removed. Next, the furnace frame plate portion 50 is removed in the order of the differential furnace frame plate 52 and the furnace receiving frame plate 51. Subsequently, the pedestal box 40 is pulled out and removed from the holding hook 35 of the support plate part 30 in the horizontal direction, and the support plate part 30 appearing therebelow is removed from the base plate 2 and separated into both support plates 31 and 32. As a result, all components are disassembled.

  The storage figure of the outdoor furnace 1 concerning this invention is shown in FIG. At the time of storage, first, all other elements except the base plate 20 are stacked and placed in a box-like box 40. In the outdoor furnace 1 according to the present invention, since all elements except for a small part are formed in a substantially flat shape from a plate material, they can be easily stacked. When all the elements are stored in the table box 40, the table box 40 is finally slid into the gap formed inside the rail portion 22 of the base plate 20 in a drawer shape, and the storage is completed.

  In this embodiment, when the square size of the furnace opening using the fire is about 290 mm square, the shape after being stored is 316 mm × 210 mm × 18 mm, which is transformed into a book size storage shape of A4. To do. For this reason, transportation when going out to a campsite, etc. and carrying on the site are extremely easy, and there is almost no space for storage. In addition, the plate | board thickness currently displayed regarding each component exemplifies what is suitable for the dimensional specification of the said this Embodiment, For example, with respect to the large sized furnace where a fire utilization opening part becomes larger It is desirable to set the plate thickness to be thicker, and conversely, there is a possibility that the plate thickness may be reduced in the case of a small size.

The characteristics of the outdoor furnace according to the present invention when compared with the portable furnace shown in Patent Document 1 are summarized as follows.
(1) Since it has the base plate 20, the ash after combustion does not fall directly on the ground surface.
(2) Since the support plate 30 is arranged in an X shape instead of a cross shape, the width can be increased, and the support of the furnace is stabilized and more air is introduced into the furnace. Can do.
(3) By using the fuel holding part 60, air can be retained between the fuel and the pedestal box 40, and air can be effectively led to fuel such as charcoal.
(4) The furnace frame plate portion 50 can be completely separated into four pieces, no hinges are required, and cleaning is facilitated.
(5) The furnace frame plate portion 50 has a truncated pyramid shape that extends upward, has a wide heating area, and has a wide range of uses.
(6) When each element is assembled, the elements mutually restrain their movements and hardly cause thermal deformation.
(7) Since there is little thermal deformation, the endurance life can be extended significantly.
(8) Each component is formed from a substantially flat plate material, and is not bulky even when stacked.
(9) Each component can be manufactured by cutting a plate material (stainless steel plate) with an NC laser, and other processing is minimized, so that the processing cost is low.
(10) Split assembly is easy, and anyone can assemble it at the time of assembly, and after disassembly, it is stored in a very compact and convenient for storage.

  As mentioned above, although the outdoor furnace concerning embodiment of this invention has been described, this invention is not limited to the thing of embodiment mentioned above. Various modifications are possible based on the present invention. For example, the assembly of the pair of support plates 31 and 32 may be a method of folding with a hinge instead of a method of inserting the vertical slits 33. The fuel holding unit 60 may be attached not between the pair of receiving frame plates 51 but between the pair of differential reactor frame plates 52. The fuel holding unit 60 may be fixed by simply inserting the fuel holding unit 60 using a slit without using the key-like hole 56. A spare air introduction hole may be provided at a position below the fuel holding unit 6 in one or both of the receiving frame plate 51 and the differential frame plate 52. In addition, the container and the lid are reversed, the pedestal plate 20 is used as a container, and other components are stored therein, and the pedestal plate 40 is used as a lid and the entire container of the pedestal plate 20 is inserted therein. It may be configured. The furnace frame plate portion 50 may not be a plug-in type using the fixing rib 54 but may be folded on the table box 40 by a hinge. Alternatively, the furnace frame plate portion 50 has a double structure, and a frame body portion (second furnace frame plate portion) surrounding the fuel is further provided inside the furnace frame body portion 50 shown in the above embodiment to prevent the release of thermal power. It may be used more efficiently. These variations are merely exemplary.

  The outdoor furnace according to the present invention can be widely used in the industrial field in which outdoor products are manufactured, sold, and used.

1 is a perspective view showing an outline of an outdoor furnace according to an embodiment of the present invention. It is a perspective view which shows the outline | summary of the element which comprises the outdoor furnace shown in FIG. It is a perspective view which shows the outline | summary of the other element which comprises the outdoor furnace shown in FIG. It is explanatory drawing which shows the assembly procedure (the 1) of the outdoor furnace shown in FIG. It is explanatory drawing which shows the assembly procedure (the 2) of the outdoor furnace shown in FIG. It is explanatory drawing which shows the assembly procedure (the 3) of the outdoor furnace shown in FIG. It is explanatory drawing which shows the assembly procedure (the 4) of the outdoor furnace shown in FIG. It is a front fragmentary perspective view which shows the use condition of the outdoor furnace shown in FIG. It is a perspective view which shows the accommodation state of the outdoor furnace shown in FIG.

Explanation of symbols

1. 20. Outdoor furnace (combustion furnace), Base plate, 21. Height part, 22. Rail part, 23. Constricted part, 30. Support plate part, 31. Receiving plate, 32. Differential support plate, 33. Vertical slit, 34. Horizontal slit, 35. Holding hook, 40. Tray, 41. Mesh body, 42. Holding slit, 50. Furnace frame plate part, 51. Receiving frame plate, 52. Differential furnace frame plate, 53. Bending part, 54. Fixing ribs, 55. Inclined slit, 56. Keyhole, 57. Insertion tab, 58. Protrusions, 59. Fixing hook, 60. Fuel holding part, 61. Support rod, 62. Net body, 63. Groove, 65. Fuel, 70. Adjusting plate 71, 72. Insertion slit.

Claims (8)

A support plate part (30) for supporting the whole, a table box (40) provided with a mesh body (41) in a central part mounted on the support plate part (30), and an upper part of the table box (40) In a portable outdoor furnace (1) that can be disassembled and assembled, comprising a furnace frame plate part (50) attached to
The support plate portion (30) is disposed below the support plate portion (30), and the ash generated when using the furnace is received to prevent the ash from directly falling to the ground surface. further look at including a base plate to shield (20),
The pedestal plate (20) has a pair of rectangular sides facing each other with a height portion (21) rising at a right angle from the plane of the pedestal plate and the height portion (21) bent further at a right angle to each other. A rail portion (22) extending in parallel to the plane in the facing direction;
A pair of support plates (31, 31) having slits (33) extending in opposite directions to half the height direction so that the support plate portion (30) is inserted in an X shape in the middle in the left-right width direction. 32), and each of the support plates (31, 32) is provided in a horizontal direction at a height corresponding to the height portion (21) of the pedestal plate (20) from below the left and right ends. 34)
At the time of furnace assembly, the rail part (22) of the base plate (20) is inserted into the slit (34) provided in the horizontal direction, and the support plate part (30) is attached to the base plate (20). An outdoor furnace (1) characterized in that both elements (20, 30) mutually restrain the other side and prevent thermal deformation. When the outdoor furnace (1) is disassembled and stored, the table box (40) is inserted into the rail portion (22) of the base plate (20) in a drawer shape, and the other elements are the table box (40 The outdoor furnace (1) according to claim 1, wherein the outdoor furnace (1) is stacked and stored in a lump. The rail portion (22) has a constricted portion (23) that is narrow in the length direction, and the support plate portion (30) is X-shaped in the constricted portion (23). Or when the height portion (21) has a pair of openings spaced in the length direction and the support plate portion (30) is inserted into the rail portion (22). When the lower part of the slit (34) provided in the horizontal direction fits into the pair of openings, the support plate part (30) is prevented from moving in the length direction of the rail part (22). The outdoor furnace (1) according to claim 2, characterized in that: Each of the support plates (31, 32) has holding hooks (35) bent in an L shape extending in opposite directions to the upper ends of the left and right ends,
When the furnace is assembled, the table box (40) is horizontally oriented so as to penetrate a space surrounded by the four holding hooks (35) formed by a pair of support plates (31, 32) inserted in an X shape. The outdoor furnace (1) according to claim 2, characterized in that the outdoor furnace (1) is inserted and attached to each other and restrains thermal deformation by restraining the other side when using the furnace. The furnace frame plate part (50) is formed in a truncated pyramid shape that expands from below to above by four furnace frame plates,
The four furnace frame plates are provided in a pair of receiving frame plates (51) provided with slits (55a) in the vicinity of both left and right ends, and in the slits (55a) of the receiving frame frame (51) at both left and right ends. A pair of differential frame plates (52) provided with insertion tabs (57) to be inserted into
With the insertion tabs (57) of the respective difference furnace frame plates (52) being inserted into the slits (55a), the furnace frame plates (51) are restrained from the rear outside in the insertion direction. The insertion tab (57) has a protrusion (58) that prevents thermal deformation, or is inserted into another slit (55b) provided in the receiving frame plate (51). The outdoor furnace (1) according to claim 1, characterized in that the differential frame (52) has a fixing hook (59) for restraining (51) from behind and preventing thermal deformation. The outer surface of the receiving frame plate (51) inserted into the stand (40) with the tip of the holding hook (35) of each support plate (31, 32) holding the stand (40). Formed to abut against
When the furnace is assembled, the tip maintains the receiving frame plate (51) in a predetermined inclined state to facilitate the assembly of the furnace frame plate portion (50),
6. The outdoor use according to claim 5, wherein when the furnace is used, the tip of the projecting portion restrains the receiving frame plate (51) from behind to prevent thermal deformation of the receiving frame plate (51). Furnace (1). At the lower end of each furnace frame plate (51, 52), a mounting tab (54) to be inserted into a slit (42) provided in the table box (40) is provided, and at least some of the tabs ( 54) is in contact with the surface of the support plate (31, 32) on the outside in the insertion direction with the support plate (31, 32) being restrained by being inserted into the slit (42) of the table box (40). However, the outdoor furnace (1) according to claim 5, wherein thermal deformation is prevented. The outdoor furnace (1) includes a fuel holding part (60) attached inside the furnace frame plate part (50), a second furnace frame plate part having a double structure of the furnace frame plate part 50, four sides The field according to any one of claims 1 to 7, further comprising any one of an adjustment plate (70) attached to each corner portion above the shaped furnace frame plate portion (50). Furnace.

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