JP2017172893A - Foldable fire table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire table that can be folded into a compact size when it is not used and that can be easily assembled when it is used.SOLUTION: This invention relates to a foldable fire table 1 in which a first side plate 3 and a second side plate 4 are arranged at opposing both sides of a rectangular plate 2 forming a fire bed and a combustion space S is formed. An upper part of the first side plate 3 and the upper part of the second side plate 4 are connected by a first rotating connection part 5 in a relative rotatable manner and one side corner part of the bottom plate 2 and the lower part of the first side plate 3 are connected by a second rotating connection part 6 in a relative rotatable manner and when it is used, the first side plate 3, the second side plate 4 and the bottom plate 2 are developed to form the combustion space S with a substantial triangle section and under no-use state, the bottom plate 2, the first side plate 3 and the second side plate 4 are folded to be enabled to form a compact shape.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a foldable bonfire mainly used outdoors.

  2. Description of the Related Art Conventionally, a bonfire stand has been known as one used when warming or cooking outdoors in a camp or the like. In general, a fire bed is provided with a fire bed (rooster) on which fuel, firewood, and the like are placed so that the combustion part does not directly contact the ground, and is shaped so as to surround it.

  By the way, the bonfire stand is not permanently installed, and is often used during outdoor activities such as camping and mountain climbing, so when it is not in use it can be compactly stored so that it can be carried easily preferable.

  Thus, conventionally, as shown in Patent Document 1, for example, a foldable bonfire stand has been proposed. Specifically, a rectangular fire bed that can be folded in mountains and two side plates facing each other are provided, and the combustion space is defined by surrounding the periphery of the fire bed with two side plates facing each other. The use state to be formed and the four side plates facing each other are rotated in the opposite direction two by two, respectively stored in the two side plates facing each other, and the fire bed is folded in a mountain and folded. is there.

Registered Utility Model No. 3192184

  In the thing of the said patent document 1, since it folds up by folding a side plate and folding up the bottom plate which is a firebed between side plates, it can fold compactly. It is a useful tool for carrying around outdoors.

  Recently, however, camping and mountain climbing have become widespread, and there has been a demand for something that can be easily carried and that has the necessary bonfire functions, that is, a lighter and more compact bonfire.

  For this purpose, the present inventor has sought a lighter and more compact housing than the bonfire of Patent Document 1 so as to meet this requirement. And the further improvement was added to the bonfire of patent document 1, and the light and compact bonfire was developed. That is, an object of the present invention is to provide a fire stand that is lighter in weight and can be folded compactly when not in use and can be easily assembled during use.

  In order to achieve the above object, in the present invention, a combustion space is formed by a bottom plate constituting a fire bed and two opposing side plates disposed on both sides of the bottom plate.

  Specifically, the first invention is a foldable structure in which a combustion space is formed by a rectangular bottom plate that forms a firebed, and a first side plate and a second side plate that are disposed on opposite sides of the bottom plate. The first side plate and the second side plate are each integrally provided with a protruding portion that protrudes outward from the upper end portion to the lower end portion at the center portion in the width direction, and at both ends in the width direction. The front side bent portion and the rear side bent portion that are formed to be bent inward are integrally provided with the upper portion of the first side plate and the upper portion of the second side plate relative to each other at the first rotation connecting portion. The one side corner of the bottom plate and the lower portion of the first side plate are connected to each other so as to be relatively rotatable at the second rotation connecting portion, and the other side corner of the bottom plate is connected to the second corner. The lower part of the side plate is detachably engaged with the engagement mechanism part, and when the bonfire is folded, The other side corner portion of the plate and the lower portion of the second side plate are separated by the engagement mechanism portion, and the bottom plate rotates upward with the second rotation connection portion as a rotation center, so that the first side plate While being folded inward, the first side plate and the second side plate are rotated and folded in the direction in which the lower portions of the first side plate and the second side plate approach each other around the first rotation connection portion. The first side plate and the second side plate are rotated in a direction in which the lower portions of the first side connection plate and the second side plate are separated from each other about the first rotation connection portion, and the bottom plate is rotated about the second rotation connection portion. The combustion which is expanded by rotating downward from the inside of the first side plate and the other side corner portion of the bottom plate and the lower portion of the second side plate are engaged by the engagement mechanism portion. Characterized by the formation of spaces To.

  According to a second aspect, in the first aspect, the bottom plate has a first bent portion bent upward or downward at a front end thereof, and a second bent portion bent upward or downward at a rear end thereof. Each of the second rotation connecting portions is provided at one end of the first bent portion of the bottom plate and the front bent portion of the first side plate, and the second bent portion of the bottom plate. Provided in one side end portion of the bent portion and the rear side bent portion of the first side plate, and the engagement mechanism portion includes the other side end portion of the first bent portion of the bottom plate and the first side plate. It is provided at the front bent portion of the two side plates, and is provided at the other side end portion of the second bent portion of the bottom plate and the rear bent portion of the second side plate. And

  According to a third invention, in the first or second invention, the second rotation connecting portion includes a bolt and a nut, and the bottom plate and the first side plate are rotatably connected by the bolt and the nut. The engaging mechanism portion includes an engaging portion provided at a side end portion of the bottom plate and an engaged portion provided in the second side plate, and the engaging portion and the engaged portion are engaged. It is characterized by being able to join and leave.

In a fourth aspect based on the third aspect, the engaging portion of the engaging mechanism portion includes a hook, the engaged portion includes a vertically long hole, and the hook engages with the vertically long hole. The fifth invention according to any one of the first to fourth inventions is characterized in that the first rotation connecting portion is the front bent portion of the first side plate. And the front side bent portion of the first side plate, the rear side bent portion of the second side plate, and the rear side bent portion of the second side plate. A rear first rotation connecting portion that rotatably connects the front first rotation connecting portion and two frame members that are rotatably connected to the rear first rotation connecting portion. The member includes a front leg portion rotatably connected to the front first rotation connection portion, and a rear first rotation connection portion. It has the back leg part connected so that rotation is possible, and the frame main-body part which connects the said front leg part and the said back leg part integrally, It is characterized by the above-mentioned.

  According to a sixth invention, in the fifth invention, when the two frame members expand in a direction away from each other, the front leg portion and the rear leg portion of one of the frame members are inserted, respectively. While the first side plate slit for stopping the expansion is provided in the upper part of the first side plate, the front leg portion and the rear leg portion of the other frame member are respectively inserted to prevent further expansion. The second side plate slit is provided in the upper part of the second side plate.

  According to a seventh invention, in any one of the second to sixth inventions, the first bent portion of the bottom plate, the front bent portion of the first side plate, and the front bent of the second side plate. A front opening that is surrounded by a portion and communicates with the combustion space, a second bent portion of the bottom plate, a rear bent portion of the first side plate, and a rear bent portion of the second side plate. An opening adjusting member that adjusts an opening area of at least one of the opening and the rear opening that is enclosed and communicates with the combustion space is provided.

  In an eighth aspect based on the seventh aspect, the opening adjusting member is provided so as to be foldable.

  According to a ninth invention, in the seventh or eighth invention, the opening adjusting member is detachably provided.

  According to a tenth aspect, in any one of the seventh to ninth aspects, an insertion slit into which the opening adjusting member can be inserted is provided in the first side plate, and the opening adjusting member is provided in the insertion slit. In the inserted state, the first side plate is assembled to the first side plate so as to be movable between a position folded on the inner surface side of the first side plate and a position closing the opening.

  In an eleventh aspect based on the tenth aspect, the opening adjusting member is integrally formed on a flat plate-shaped restricting main body portion that can be inserted into the insertion slit of the first side plate, and an insertion rear end side of the restricting main body portion. It is provided with the provided bending piece and the holding part integrally provided in the rear end of the said bending piece.

  As described above, according to the first invention, the first side plate, the second side, and the bottom plate are developed to form a combustion space having a substantially triangular cross section, so that it is lightweight as a fire bed. At the same time, the bottom plate, the first side plate, and the second side plate can be folded into a compact shape, so that they can be folded and unfolded with a simple operation. Moreover, since the protrusion part, the front side bent part, and the rear side bent part are integrally provided on each of the first side plate and the second side plate, the strength is high and the deformation resistance is excellent.

  According to the second invention, since the first bent portion and the second bent portion are provided on the bottom plate, the strength is high, and the first bent portion and the second bent portion, and the front side folding of the first side plate. A second rotation connecting portion is provided at the bent portion and the rear bent portion, and the first bent portion and the second bent portion are engaged with the front bent portion and the rear bent portion of the first side plate. By providing the portion, the engagement and disengagement of the bottom plate and the second side plate, and the folding and unfolding of the bottom plate are possible with an easy operation.

  According to the third aspect of the present invention, when the second rotary connecting portion is separated, the bottom plate and the first side plate can be separated by loosening the screwing of the bolt and the nut and removing the bolt, and the separation is performed by the engaging mechanism portion. In some cases, the bottom plate can be separated from the second side plate by detaching the engaging portion from the engaged portion, so that the quickly damaged bottom plate can be easily removed and replaced with a new bottom plate.

  According to the fourth invention, the hook can be engaged by hanging it in the vertically long hole, and by removing the hook from the vertically long hole, the bottom plate can be separated from the second side plate, so that the bottom plate and the second side plate can be easily engaged. You can leave.

  According to the fifth invention, by expanding the frame body part of the two frame members in a direction away from the frame body part, the frame body part can be used as a five virtues for placing an article to be cooked. Can be used to carry.

  According to the sixth invention, when the frame member is used as a virtues, the frame member is inserted into the first side plate slit and the second side plate slit, thereby preventing the frame member from expanding or moving in the other direction. Therefore, it can be used stably.

  According to the seventh aspect, by providing the opening adjusting member, it is possible to adjust the air circulation state in the combustion space, so that it is easy to adjust the heating.

  According to the eighth aspect of the invention, since the opening adjustment member is provided so as to be foldable, it can be stored compactly.

  According to the ninth invention, the opening adjusting member is provided so as to be removable, so that it can be removed when not needed, and can be attached and used when necessary.

  According to the tenth invention, since the opening adjusting member is inserted into the insertion slit, it can be moved to a position where it is folded to the inner surface side of the first side plate and a position where the opening is closed. According to the use state and the non-use state of the bonfire, it can be moved by a simple operation between the position where the opening is closed and the position where the opening is folded.

  According to the eleventh aspect of the invention, the opening adjusting member includes the flat plate-shaped restricting main body that can cover the front opening or the rear opening. Therefore, the front opening can be easily reduced without narrowing the combustion space. The opening area of the part or the rear opening can be limited. Moreover, it can rotate to the position which closes the inner surface side position of the said 1st side plate, and the said opening part by making the said bending piece into a rotation center. Further, the opening adjustment member can be taken out or inserted into the insertion slit by grasping the grip portion.

FIG. 1 is a perspective view showing a use state in which a bonfire stand according to Embodiment 1 of the present invention is assembled. FIG. 2 is a perspective view of the bottom plate of the first embodiment. FIG. 3 is a perspective view seen from obliquely above in a state where the bonfire of Embodiment 1 is folded. 4 is a cross-sectional view taken along line IV-IV in FIG. 5 is a cross-sectional view taken along line VV in FIG. FIG. 6 is a perspective view showing a state in the middle of folding the bonfire of FIG. FIG. 7 is a perspective view showing a state in which the bonfire stand is further folded from the state of FIG. 6. FIG. 8 is a perspective view showing a state where the bonfire stand is finally folded from the state of FIG. 7. FIG. 9: is a perspective view which shows the use condition which assembled the bonfire stand concerning Embodiment 2 of this invention. FIG. 10 is a perspective view of the bonfire stand of FIG. 9 as seen from the opposite side, with a part thereof omitted. FIG. 11 is a perspective view showing the opening adjusting member. FIG. 12 is a perspective view showing the second side plate and the opening adjusting member when the opening adjusting member is in use in the second embodiment. 13 is a perspective view of the second side plate and the opening adjusting member of FIG. 12 as viewed from the opposite side. FIG. 14 is a perspective view showing the second side plate and the opening adjusting member when the opening adjusting member is in a folded state. 15 is a perspective view of the second side plate and the opening adjusting member of FIG. 14 as viewed from the opposite side. FIG. 16 is a partial cross-sectional view showing the engagement mechanism portion 7 of the second embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, its application, or its application. In the following, the side close to the center of the fire stand in use is referred to as the inside, and the opposite side is referred to as the outside. The up-down direction, the front-rear direction, and the side (left-right direction) of the bonfire stand are defined as shown in FIG.

(Embodiment 1)
As shown in FIGS. 1 to 8, a foldable bonfire 1 (hereinafter simply referred to as bonfire 1) according to Embodiment 1 of the present invention is a substantially rectangular firebed corresponding to a rooster on which fuel is placed. And a pair of substantially rectangular first side plate 3 and second bottom plate 4 disposed opposite to each other on the side of the long side of the bottom plate 2. The bottom plate 2, the first side plate 3, and the second side plate 4 are all made of, for example, a stainless steel material. In the use state of the bonfire 1, the first side plate 3 and the second side plate 4 are in an inclined state in which the lower part is separated from the upper part and the upper part is approached. A bottomed combustion space S having an open top is formed.

  As shown in FIG. 1, the first side plate 3 has a projecting portion 34 that is formed at the center portion in the width direction (front-rear direction) so as to project outward from its upper end portion to its lower end portion and the combustion space S is expanded. A front side bent portion 31a and a rear side bent portion 31b formed by bending inward are integrally provided at both ends in the width direction. The second side plate 4 is integrally provided with a projecting portion 44 that protrudes outward from the upper end portion to the lower end portion in the center portion in the width direction (front-rear direction), and is formed by expanding the combustion space S, and in the width direction. The front side bent part 41a and the rear side bent part 41b formed by being bent inward are integrally provided at both ends. The protrusion 34 includes an inclined surface 34a bent outward, a plane 34b bent from the outer end of the inclined surface 34a in the front-rear direction of the fire bed 1, and an inclined surface 34c bent obliquely inward from the plane 34b. Become. The protrusion 44 includes an inclined surface 44a bent outward, a plane 44b bent from the outer end of the inclined surface 44a in the front-rear direction of the fire bed 1, and an inclined surface 44c bent obliquely inward from the plane 44b. Become. The protrusions 34 and 44 are not limited to this shape, and the inclined surface 34a, the flat surface 34b and the inclined surface 34c, or the inclined surface 44a, the flat surface 44b and the inclined surface 44c may have a curved shape with a continuous cross section. Moreover, you may provide the protrusion parts 34 and 44 not only in one place of the center of the width direction but in multiple places. The space expanded by the protrusions 34 and 44 forms a guide passage through which the fire burning on the bottom plate 2 gathers in the central direction from the front-rear direction and the left-right direction, forming a chimney effect. Since it can demonstrate, the to-be-heated goods (illustration omitted) on virtues can be cooked efficiently.

  Further, the provision of the protrusions 34 and 44 improves the rigidity and deformation resistance of the first side plate 3 and the second side plate 4. The width direction described here is the front-rear direction when viewed from the bonfire 1, but it is easier to understand the description using the side plate, and therefore, it will be described as a width direction.

  When the lower side of the first side plate 3 and the second side plate 4 is expanded and put into use, the upper ends 34d, 44d of the projections 34, 44 are the same height as the upper ends of the portions other than the projections 34, 44. As shown, the upper end portions 34d and 44d of the projecting portions 34 and 44 are gradually lowered from the inclined surfaces 34a and 44a and the inclined surfaces 34c and 44c toward the flat surfaces 34b and 44b, respectively. That is, the upper end portions of the inclined surfaces 34a and 44a are gradually lowered toward one end of the upper end portions of the flat surfaces 34b and 44b, and remain inclined toward the other end of the upper end portions of the flat surface portions 34b and 44b. The surfaces 34c and 44c are gradually increased obliquely from the height of the other end of the flat portions 34b and 44b to the original height. Thereby, in use condition, the opening area above the combustion space S can be increased, and the combustion efficiency can be improved. In particular, since the center is wider than the front and rear end portions, the fire gathers at the center portion, so that the combustion efficiency can be improved and the article to be heated according to virtues can be efficiently heated.

  As shown in FIG. 1, the first side plate 3 includes a front bent portion 31 a bent inward at the front end portion of the fire bed 1, and a rear bent portion 31 b at the rear end portion. The second side plate 4 includes a front bent portion 41a bent inward at the front end portion of the fire bed 1, and a rear bent portion 41b at the rear end portion. Comparing the dimensions in the front-rear direction of the fire bed 1, the dimensions between the front bent portion 31 a and the rear bent portion 31 b of the first side plate 3 are the same as the front bent portion 41 a and the rear bent portion of the second side plate 4. The front side bent portion 41a and the rear side bent portion of the second side plate 4 are arranged inside the front side bent portion 31a and the rear side bent portion 31b of the first side plate 3 when bent. The part 41b is overlapped and folded so that the second side plate 4 covers the first side plate 3.

  The front bent portion 31a and the rear bent portion 31b function effectively for improving the rigidity of the first side plate 3 and preventing deformation. The front bent portion 41a and the rear bent portion 41b function effectively for improving the rigidity of the second side plate 4 and preventing deformation.

  As shown in FIGS. 3 and 5, the first side plate 3 and the second side plate 4 are overlapped with each other, and the overlapped portions are connected to each other by the first rotation connecting portion 5 so as to be rotatable. Yes. The first rotation connecting portion 5 includes a through hole 32 formed in the upper portion of the front bent portion 31a of the first side plate 3, a through hole 42 formed in the upper portion of the front bent portion 41a of the second side plate 4, A through hole formed in the upper portion of the rotary connecting portion 5a including a bolt 51 inserted into the through holes 32 and 42 and a nut 52 screwed into the bolt 51, and the rear bent portion 31a of the first side plate 3. 32, a through hole 42 formed in the upper part of the rear bent portion 41 a of the second side plate 4, a bolt 51 inserted through the through holes 32, 42, and a nut 52 screwed into the bolt 51. It has the connection part 5b. The through holes 32 and 42 are slightly larger than the bolts 51 inserted through the through holes 32 and 42, and the first side plate 3 and the second side plate 4 can freely rotate with respect to the bolts 51. It is like that. As will be described later, the frame member 8 is also rotatably connected to the bolt 51.

  In the first rotation connecting portion 5, it is only necessary that the first side plate 3 and the second side plate 4 are rotatably connected to each other, and the structure is not limited to the through holes 32 and 42, the bolts 51, and the nuts 52. . A simple retaining member such as a shaft and a pin may be used. Bolts 51 and nuts 52 are separately provided on each of the rotary connecting portion 5a and the rotary connecting portion 5b, and are rotatably supported. However, one shaft is continuously passed through the through holes 32 and 42 in common. You may make it do.

  In a state where the first side plate 3 and the second side plate 4 are used in an inclined state, the front bent portion 31a and the front bent portion 41a are overlapped in the upper portion, but this overlapping portion Below, it is in an open state with a triangular spacing, and is an open portion connected to the combustion space S. Similarly, in a state where the rear bent portion 31b and the rear bent portion 41b are used in an inclined state, the rear bent portion 31b and the rear bent portion 41b overlap in the upper portion. However, below this overlapped portion, it is in an open state with a triangular interval and is an open portion connected to the combustion space S. These open portions form a supply opening portion of the combustible material to the combustion space S and an air flow passage.

  As shown in FIG. 2, the bottom plate 2 is integrally provided with a first bent portion 21 a bent upward at the front end, and a second bent portion 21 b bent upward at the rear end. Moreover, it has the 3rd bending part 21c and the 4th bending part 21d which were bent upwards at the both right and left edge part. The height of the third bent portion 21c is lower than the height of the first bent portion 21a and the second bent portion 21b so that the bottom plate 2 rotates smoothly with respect to the first side plate 3. . The fourth bent portion 21d has the same height as the third bent portion 21c. By providing the first bent portion 21a, the second bent portion 21b, the third bent portion 21c, and the fourth bent portion 21d, the rigidity of the bottom plate 2 is increased. The first bent portion 21a, the second bent portion 21b, the third bent portion 21c, and the fourth bent portion 21d may be welded together to further increase the rigidity.

  Further, if the rigidity of the bottom plate 2 is insufficient, other rigidity improving means may be added. For example, the reinforcing member may be welded to the bottom plate, or the bottom plate itself may be formed into a wave shape to improve the strength. Moreover, it is good also as a structure which formed many air circulation holes 27 by the burring process, and strengthened the air circulation holes 27. FIG. On the contrary, if the rigidity of the bottom plate 2 is sufficient, the third bent portion 21c and the fourth bent portion 21d can be omitted. The first bent portion 21a, the second bent portion 21b, the third bent portion 21c, and the fourth bent portion 21d are all formed by bending upward, but may be formed by bending downward. In this case, it is not necessary to bend everything downward, but only part of it. Moreover, although it bent substantially at right angle, it is not restricted to a right angle, Other bending angles may be sufficient.

  As shown in FIGS. 6 to 8, the bending heights (vertical lengths) of the first bent portion 21 a and the second bent portion 21 b are set so as to be within the inner surface position of the first side plate 3. It is slightly shorter than the lengths of the front bent portion 31a and the rear bent portion 31b of the side plate 3. Further, the length in the left and right side direction of the bottom plate 2 is shorter than the length in the vertical direction of the first side plate 3 so as to fit in the position of the inner surface of the first side plate 3.

  As shown in FIG.1 and FIG.2, the 2nd rotation connection part 6 is each provided in one edge part of the front side bending part 21a and the rear side bending part 21b, and the engaging mechanism part 7 is provided in the other edge part. Yes.

  The first side plate 3 and the bottom plate 2 are connected to each other by a second rotation connecting portion 5 so as to be rotatable. The front side bent portion 31a of the first side plate 3 and the first bent portion 21a of the bottom plate 2 overlap to form through holes 32 and 22. The through hole 22 is a long hole, so that the bottom plate 2 is lowered downward by the length of the long hole 22 even when the bottom plate 2 is folded into the inner space of the first side plate 3 as shown in FIG. Therefore, the hook 23 is also lowered, and interference between the hook 23 and the first rotation connecting portion 5 can be avoided. Therefore, when the bottom plate 2 is folded into the inner space of the first side plate 3, not only is the bottom plate 2 rotated upward, but when the bottom plate 2 is folded into the inner space of the first vertical plate 3, Therefore, the length of the bottom plate 2 can be made as long as possible within the space inside the first side plate 3, and the combustion space S can be widened. Moreover, when the bottom hole 2 rotates with respect to the 1st side plate 3, it can rotate smoothly with a light force by setting it as the elongate hole 22. FIG. A bolt hole 32 into which the bolt 61 of the second rotation connecting portion 6 can be inserted is provided in the front bent portion 31 a of the first side plate 3 at a position that coincides with the elongated hole 22.

  The engagement mechanism portion 7 includes hooks 23 and 23 formed on the first bent portion 21 a and the second bent portion 21 b of the bottom plate 2, and is formed of a vertically long slot into which the hooks 23 and 23 are hooked. Engaging portions 43, 43 (hereinafter, referred to as vertically elongated holes 43) are opened at positions below the second side plate 4.

  Each hook 23 is provided with an extension 23a that protrudes outward from the bottom plate 2 at the other end of the first bent portion 21a, and a locking piece 23b that protrudes downward from the tip of the extension 23a. And have.

  The extension 23 a and the locking piece 23 b are inserted from the inside to the outside through the longitudinal hole 43 so that the lower end of the extension 23 a is in contact with the lower end of the longitudinal hole 43, so that the bottom plate 2 is engaged with the second side plate 4. Combined. That is, the bottom plate 2 is connected to the second side plate 4 by hooking and engaging the hook 23, and is separated by pulling off the hook 23 from the vertically long hole 43. In the engagement mechanism portion 7, the hook 23 and the vertically long hole 43 can be engaged and disengaged, so that it can be easily connected and disconnected.

  Two legs 36 and 46 are provided below the first side plate 3 and the second side plate 4 respectively. The bonfire stand 1 is stably supported by the legs 36 and 46. Air can flow between the legs 36 and 36 and between the legs 46 and 46 to the lower surface of the bottom plate 2.

  In the bottom plate 2, a large number of circular air circulation holes 27 are formed on almost the entire surface, like a normal rooster. Since the outside air is sucked from the air circulation holes 27, the chimney effect can be exhibited and the combustion efficiency is improved. Air circulation holes 37 and 47 are provided at appropriate intervals below the first side plate 3 and the second side plate 4.

  A frame member 8 that forms five virtues across the front bent portions 31a and 41a of the first side plate 3 and the second side plate 4 and the rear bent portions 31b and 41b of the first side plate 3 and the second side plate 4. , 8 are connected to be rotatable in the left-right direction. Each frame member 8 includes a plate-like frame main body 81 having a length substantially matching the longitudinal length of the first side plate 3 and the second side plate 4, and a front side bent substantially at right angles from both ends of the frame main body 81. It is a substantially U-shaped member composed of a leg part 82a and a rear leg part 82b. The bolts 51 of the first rotation connecting portion 5 that rotatably couple the first side plate 3 and the second side plate 4 are inserted into the front leg portions 82a and the rear leg portions 82b of the two frame members 8 and 8, respectively. The first side plate 3 has a front side bent portion 31a, a rear side bent portion 31b, and the second side plate 4 has a front side bent portion 41a and a rear side bent portion 41b. It is combined as possible.

  First side plate slits 38 and 38 into which the front leg portion 82a and the rear leg portion 82b of one frame member 8 can be inserted are formed by cutting out the upper portion of the first side plate 3 in a U shape. Similarly, second side plate slits 48 and 48 into which the front leg portion 82a and the rear leg portion 82b of the other frame member 8 can be inserted are formed by cutting out the upper part of the second side plate 3 in a U shape. Yes. By inserting the frame members 8 and 8 into the first side plate slits 38 and 38 and the second side plate slits 48 and 48, the space between the frame main body portions 81 and 81 of the frame members 8 and 8 is widened, a pan or the like When the object to be heated is placed on the frame main body portions 81 and 81 and used as five virtues, the frame members 8 and 8 can be stabilized at a predetermined position. When the first side plate 3 and the second side plate 4 are in the folded state, the frame body portions 81 and 81 of the frame members 8 and 8 rotate in a direction in which the frame body portions 81 and 81 approach each other. You can also carry it with you.

  In the first embodiment, the frame members 8 and 8 are the same member, and the first side plate slit 38 and the second side plate slit 48 are shifted in the front-rear direction to have the same length. 8, the front leg portions 82a and 82a and the rear leg portions 82b and 82b are separated from each other, but the frame main body portions 81 and 81 interfere with each other and do not completely overlap. On the other hand, it is also possible to make the frame main body portions 81 and 81 overlap vertically. For example, the frame member 8 is inserted into the longer slit length by changing the vertical length of the slit. The front leg portion 82a and the rear leg portion 82b may be made longer. In this way, when folded, the front leg portions 82a and 82a and the rear leg portions 82b and 82b of the frame main body portions 81 and 81 are overlapped in the front-rear direction, and the frame main body portions 81 and 81 are moved vertically. It is shifted and piled up. Further, when the frame main body portions 81 and 81 are opened, the frame main body portion 81 inserted into the long slit falls more greatly, but the front leg portion 82a and the rear leg portion 82b are correspondingly longer. Therefore, the frame main body portions 81 and 81 are kept horizontal and used as virtues. The frame members 8, 8 are made of a plate material, but are not limited to this, and may be an angle material, a round bar, or the like. Further, the frame members 8 and 8 may be stored in the first side plate 3 and the second side plate 4 so as to be folded compactly.

  For example, the bolts 51 of the first rotation connecting portion 5 that connect the front leg portions 82a and 82a of the frame members 8 and 8 and the rear leg portions 82b and 82b to the first side plate 3 and the second side plate 4 are described. When coupled with another bolt so as to be rotatable, when folded, the front leg portion 82a and the rear leg until the frame body portions 81 and 81 of the frame members 8 and 8 come into contact with the outer surfaces of the first side plate 3 and the second side plate 4. The portion 82b may be lowered and housed in the first side plate 3 and the second side plate 4, and when used, the front leg portion 82a and the rear leg portion 82b may be pulled up and used. At this time, the bolt connecting the front leg portion 82a and the rear leg portion 82b contacts the lower side of the bolt 51 connecting the first side plate 3 and the second side plate 4, and the front leg portion 82a and the rear side The leg portion 82b may have a structure that does not rise any further. The frame members 8, 8 can be used after being removed. In this case, a substitute for the virtues may be placed between the first side plate 3 and the second side plate 4 for use.

  Next, the folded state will be described with reference to FIGS.

  In the folded state, the hook 23 of the bottom plate 2 is removed from the vertically long hole 43 of the second side plate 4 and separated from the second side plate 4 from the use state of FIG. Then, as shown in FIGS. 6 and 7, the bottom plate 2 is rotated upward about the second rotation connecting portions 6 and 6 and stored in the inner space of the first side plate 3. At substantially the same timing as this operation, as shown in FIG. 8, the first side plate 3 and the second side plate 4 rotate in the direction in which the lower portions of the first side connection plate 3 and the second side plate 4 approach each other about the first rotation connection portions 5 and 5. Thus, the front bent portion 31a of the first side plate 3 and the front bent portion 41a of the second side plate 4 overlap, and the rear bent portion 31b of the first side plate 3 and the rear bent portion 41b of the second side plate 4 are overlapped. Fold it so that it overlaps. Thereby, it can be easily and compactly folded.

  Moreover, what is necessary is just to perform reverse movement at the time of use. The first side plate 3 and the second side plate 4 rotate in the direction in which the lower portions of the first side plate 3 and the second side plate 4 are separated from each other with the first rotation connecting portions 5 and 5 as the rotation center. And the lower part of each other spreads relatively, and the bottom plate 2 rotates downward from the inner space of the first side plate 3. The hook 23 of the bottom plate 2 is engaged with the vertically long hole 43 of the second side plate 4, and the bottom plate 2 becomes a firebed, and the combustion space S is formed by the bottom plate 2, the first side plate 3, and the second side plate 4.

  When the hook 23 of the bottom plate 2 is engaged with the vertically long hole 43 in the state of use, the hook 23 is a vertically long plate piece. Therefore, the hook 23 and the vertically long hole 43 are not easily damaged, and the load resistance and deformation resistance of the bottom plate 2 are excellent.

  Thus, in the present embodiment, the bottom plate 2, the first side plate 3 and the second side plate 4 can be folded so as to overlap each other, and when used, the bottom plate 2 is used as a firebed, and the first side plate Since the combustion space S is formed by making the 3 and the second side plate 4 in an inclined state, the fire bed 1 can be expanded to a use state by a simple operation and can be folded compactly.

  In use, the first side plate 3, the second side plate 4 and the bottom plate 2 are developed into a substantially triangular shape in cross section, so that the shape of the fire bed 1 is stably obtained, and even if wind blows, it is difficult to collapse.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, only the parts different from the first embodiment are described, and the description of the common parts is omitted. The main part of the second embodiment different from the first embodiment is that an opening adjusting member 91 including a front side restricting member 91a and a rear side restricting member 91b is provided. The front side restricting member 91a is in a state of use of the front side opening portion 9a surrounded by the first bent portion 21a of the bottom plate 2, the front side bent portion 31a of the first side plate 3, and the front side bent portion 41a of the second side plate 4. The air flow to the combustion space S can be controlled by limiting the opening area. The rear side restricting member 91b includes a second bent portion 21b of the bottom plate 2, a rear bent portion 31b of the first side plate 3, and a rear opening 9b surrounded by the rear bent portion 41b of the second side plate 4. The air flow to the combustion space S can be controlled by limiting the opening area. The front restriction member 91a and the rear restriction member 91b are referred to as a restriction member 91.

  As shown in the upper side of FIG. 11, the front side restricting member 91a includes a front side restricting main body 92a having a substantially rectangular flat plate shape. The front side restricting main body 92a has a slightly tapered tip, which can prevent interference with the first side plate 3 and the bottom plate 2 in a use state (a state in which the opening area of the front side opening 9a is restricted), and is not used. It has a shape that can be rotated so that it can sometimes be folded. A front-side first bent piece 93a bent at a substantially right angle is integrally provided at the rear end of the front-side restricting main body 92a. A front second bent piece 94a is formed integrally with the rear end of the front first bent piece 93a so as to be bent at a substantially right angle in the opposite direction and to be a plane substantially parallel to the front restriction main body 92a. The front side first bent piece 93a has the same width as that of the front side restriction main body 92a, but the front side second bent piece 94a has a larger width. At the rear end of the front side second bent piece 94a, a narrow front side gripping portion 95a is integrally provided so as to extend in the same direction as the front side second bent piece 94a. The front restriction main body 92a is provided with a plurality of front adjustment recesses 96a for adjusting the insertion position.

  As shown in the lower side of FIG. 11, the rear side restricting member 91b has a shape similar to that of the front side restricting member 91a and will not be described in detail. The difference is that the rear first bent piece 93b provided at the rear end of the rear limited body portion 92b is bent at a right angle in the opposite direction to the front first bent piece 93a. Similar to the piece 94a, the front gripping portion 95a, and the front adjustment recess 96a, a rear second bent piece 94b, a rear gripping portion 95b, and a rear adjustment recess 96b are provided. The front restriction main body 92a and the rear restriction main body 92b are referred to as a restriction main body 92. In FIG. 11, 97 is an adjustment hole for weight reduction.

  As shown in FIGS. 9 and 10, the first side plate 3 can be inserted with opening adjusting members 91 (that is, the front side restricting member 91 a and the rear side restricting member 91 b) at both ends in the front-rear direction (both ends in the width direction). Slits 39 are provided.

  The opening adjusting member 91 is inserted into the insertion slit 39 of the first side plate 3 and is folded to the inner surface side of the first side plate 3 (inner surface side position) and the opening 9 (that is, the front opening 9a and the rear side). It is assembled to the first side plate 3 so as to be rotatable to a position closing the opening 9b).

  Based on FIG.9 and FIG.10, the use condition of the front side limitation member 91a and the rear side limitation member 91b is demonstrated. As shown in FIG. 9, the front restriction main body 92 a is inserted into the insertion slit 39, and the front restriction main body 92 a faces the second side plate 4, so that the opening area of the front opening 9 a is adjusted. ing. Similarly, the rear side restriction main body 92b is inserted into the insertion slit 39, and the rear side restriction main body 92b faces the second side plate 4 so that the opening area of the rear side opening 9b is adjusted. Yes. At this time, as shown in FIG. 10, a stopper 25 that protrudes upward is formed on the bottom plate 2, and the rear-side limiting main body 92b is located on the second bent portion 21b. By doing so, the rear side restricting member 91b is prevented from rotating in the direction in which it is naturally folded. In FIG. 10, only the rear side restricting member 91b is shown for convenience of explanation, but the front side restricting member 91a is also prevented from rotating naturally by a stopper (not shown). Note that it is only necessary to prevent the rotation, and the shape of the stopper 25 is not limited to this.

  Next, based on FIGS. 12-15, the operation state of the front side limitation member 91a is demonstrated in detail. The rear side restricting member 91a also operates in the same manner as the front side restricting member 91a, and a description thereof is omitted.

  When the opening area of the front opening 9a (rear opening 9b) is limited, that is, in the use state, the front restriction main body 92a is substantially the same as the first side plate 3 as shown in FIGS. Standing at a right angle, the lower end of the tip is in contact with the bottom plate 2, and the upper end of the tip is slightly open from the second side plate 4. In this state, the front holding portion 95a is held and the front holding portion 95a is rotated inward in the width direction with the boundary portion between the front first bent piece 93a and the front second bent piece 94a as the rotation center with respect to the insertion slit 39. And the front side limiting member 91a and the back side limiting member 91b will be in the state of FIG. 10 by rotating the front side limiting main body 92a outward in the width direction. That is, the front restriction main body 92a rotates outward in the width direction from the position folded inside the first side plate 3 so that the front restriction main body 92a faces the second side plate 4. At this timing, one of the front adjustment recesses 96 a is lowered so as to engage with the lower end of the insertion slit 39. In the second embodiment, the rearmost front adjustment recess 96 a is engaged with the lower end of the insertion slit 39. If the front adjustment recess 96a on the front end side is engaged among the plurality of front adjustment recesses 96a, the opening area of the front opening 9a is not so limited, and the front adjustment recess 96a on the rear end side is engaged. If you do this, you will be greatly limited. Alternatively, the front adjustment recess 96a and the rear adjustment recess 96b may be eliminated, and the opening area may be adjusted by appropriately inserting and piercing the front limit member 91a and the rear limit member 91b.

  When folding the front side restricting member 91a (rear side restricting member 91b), as shown in FIGS. 14 and 15, the front side holding part 95a is lifted and the front adjustment recess 96a and the lower end of the insertion slit 39 are engaged. Remove the match. Then, the front gripping portion 95a is rotated outward from the center in the width direction using the boundary portion between the front first bent piece 93a and the front second bent piece 94a as the rotation center with respect to the insertion slit 39. As a result, the front restriction main body 92a rotates from the state facing the second side plate 4 to the folded position inside the first side plate 3. The rear limited main body 92b is also rotated to the folded position inside the first side plate 3 by the same operation.

  As described above, the restricting members 91a and 91b can be rotated around the bent pieces 93a and 94a and 93b and 94b to a position where the inner side of the first side plate 3 and the opening 9 are closed. Since the opening adjusting member 91 can be taken out and inserted into the insertion slit 39 by gripping the grip portions 95a and 95b, the operability is excellent.

  The unfolding operation and folding operation of the first side plate 3 and the second side plate 4 of the second embodiment are the same as those of the first embodiment, and a description thereof is omitted.

  The second embodiment will be described with respect to components that are different from the first embodiment. As shown in FIG. 16, the engaged portion (vertically long hole) 43 includes an insertion hole 43a and a locking hole 43b. When engaging, the extension part 23a of the engaging part (hook) 23 passes through the insertion hole 43a and goes out. And the locking piece 23b which has come out outside is locked by the locking hole 43b from the outside. This makes it difficult for the engaging portion (hook) 23 to be inadvertently detached from the engaged portion (vertically long hole) 43.

  Further, in the second embodiment, the air circulation holes 37 and 47 to the combustion space S are provided at different positions instead of the protrusions 34. Embodiment 1 may be sufficient as this air circulation hole 37, and may combine both.

  In the second embodiment, since the opening adjustment member 91 is inserted into the insertion slit 39, it can be rotated into a state where it is folded to the inner surface side position of the first side plate 3 and a state where the opening 9 is closed. According to the use state and non-use state of the bonfire stand 1, it can be moved by a simple operation between the state in which the opening 9 is closed and the state in which it is folded. Even in the use state, the opening area of the opening 9 can be easily limited without narrowing the combustion space S.

  The opening adjusting member 91 is not limited to the structure of the second embodiment, and may have another structure. For example, the front side restricting member 91a (rear side restricting member 91b) includes a front side first bent piece 93a and a front side second bent piece 94a, and is rotatable with respect to the slit 39. It is not restricted to 93a and the front side 2nd bending piece 94a, It is good also as a structure which can be rotated by another structure. Alternatively, the front side restricting member 91a (rear side restricting member 91b) has a structure in which the front side gripping part 95a is directly provided integrally without the front side first bent piece 93a and the front side second bent piece 94a. Then, the slit 39 may be pulled out or inserted. In addition, a portion that can be engaged / disengaged with respect to the first rotation connecting portion 5 may be provided on the front-side restricting main body portion 92a of the restricting main body portion 92 and assembled. In this case, the front first bent piece 93a, the front second bent piece 94a, and the front gripping portion 95a can be omitted, and the assembling and removing can be performed after the fire bed 1 is assembled. In addition, an opening adjustment member may be rotatably connected to the first side plate 3, the second side plate 4, or the bottom plate 2 by a hinge so that it can be operated between a use state and a non-use state.

(Other embodiments)
In order to increase the strength of the bottom plate 2, reinforcing ribs may be integrally formed on the lower surface or the upper surface of the bottom plate 2, or another reinforcing member may be welded.

  Further, leg portions 36 and 46 having an L-shaped cross section are formed at the lower ends of the first side plate 3 and the second side plate 4, but the lower end portions of the first side plate 3 and the second side plate 4 are not cut out. The entire lower sides of the first side plate 3 and the second side plate 4 may be grounded.

  A substantially triangular front opening 9 a is formed between the front bent portion 31 a of the first side plate 3, the front bent portion 41 a of the second side plate 4, and the first bent portion 21 a of the bottom plate 2. When it is desired to close or narrow the portion 9a, the opening adjustment member 91 is not provided as in the second embodiment, but the height of the front bent portion 31a, the front bent portion 41a, and / or the first bent portion 21a is increased. The height may be increased to narrow or close the opening 9a.

  Although the engaging portion of the engaging mechanism portion 7 is the hook 23 and the engaged portion is the vertically long hole 43, the structure is not limited to this structure, and the bottom plate 2 can be received and supported, and the first side plate 3, If the lower part of the two-side plate 4 can be prevented from spreading beyond the use state, that is sufficient. For example, the extension 23a may have a thick tip or a bent portion, and the vertically long hole 43 may be wide on the upper side and narrow on the lower side.

  Although the protrusions 31 and 41 are formed with the same height and the same width, they may not necessarily have the same height and the same width.

  Moreover, you may provide the bag and case which accommodate the folded bonfire 1.

  The present invention is suitable for a foldable bonfire mainly used outdoors.

DESCRIPTION OF SYMBOLS 1 Bonfire stand 2 Bottom plate 21a 1st bending part 21b 2nd bending part 22 Through-hole (long hole)
23 Engagement part (hook)
23a Extension part 23b Locking piece 25 Stopper 27 Air flow hole 3 1st side board 31a Front side bending part 31b Rear side bending part 34 Projection part 35 Through-hole (bolt hole)
37 Air flow hole 38 First side plate slit 39 Insertion slit 4 Second side plate 41a Front side bent portion 41b Rear side bent portion 42 Through hole (bolt hole)
43 engaged part (vertically long hole)
44 Projection 45 Through-hole (bolt hole)
47 Air circulation hole 48 Second side plate slit 5 First rotation connection portion 51 Bolt 52 Nut 6 Second rotation connection portion 7 Engagement mechanism portion 8 Frame member 81 Frame main body portion 82a Front leg portion 82b Rear leg portion S Combustion space 9 Opening 9a Front opening 9b Rear opening 91 Opening adjustment member 91a Front restriction member 91b Rear restriction member 92 Restriction main body 92a Front restriction main body 92b Rear restriction main body 93a Front first bent piece 93b Rear first Folded piece 94a Front second bent piece 94b Rear second bent piece 95a Front grip portion 95b Rear grip portion 96a Front adjustment recess 96b Rear adjustment recess 97 Adjustment hole

Claims (11)

A foldable fire bed in which a combustion space is formed by a rectangular bottom plate forming a fire bed, and a first side plate and a second side plate arranged on opposite sides of the bottom plate,
The first side plate and the second side plate are each integrally provided with a protruding portion protruding outward from the upper end portion to the lower end portion at the center portion in the width direction, and bent inward at the both end portions in the width direction. The formed front bent portion and rear bent portion are integrally provided,
The upper part of the first side plate and the upper part of the second side plate are connected to each other so as to be relatively rotatable at the first rotation connection part,
The one side corner of the bottom plate and the lower portion of the first side plate are connected so as to be relatively rotatable at the second rotation connecting portion,
The other side corner of the bottom plate and the lower portion of the second side plate are detachably engaged with each other by an engagement mechanism portion,
When the bonfire is folded, the other side corner portion of the bottom plate and the lower portion of the second side plate are separated by the engagement mechanism portion, and the bottom plate faces upward with the second rotation connection portion as a rotation center. The first side plate rotates and is folded inside the first side plate, and the first side plate and the second side plate are rotated and folded in the direction in which the lower portions approach each other with the first rotation connection portion as the rotation center. on the other hand,
When the bonfire is used, the first side plate and the second side plate are rotated in a direction in which the lower portions of the first side connection plate and the second side plate are separated from each other about the first rotation connection portion, and the bottom plate is With the connecting portion as the center of rotation, the first side plate is rotated downward from the inner side and deployed, and the other side corner portion of the bottom plate and the lower portion of the second side plate are engaged by the engagement mechanism portion. A foldable bonfire, wherein the expanded combustion space is formed. In claim 1,
The bottom plate includes a first bent portion bent upward or downward at a front end thereof, and a second bent portion bent upward or downward at a rear end thereof, respectively.
The second rotation connecting portion is provided at one side end of the first bent portion of the bottom plate and the front bent portion of the first side plate, and of the second bent portion of the bottom plate. Provided on one side end and the rear bent portion of the first side plate;
The engaging mechanism is provided at the other side end of the first bent portion of the bottom plate and the front bent portion of the second side plate, and the other of the second bent portions of the bottom plate. The foldable bonfire is provided at a side end of the second side plate and the rear bent portion of the second side plate. In claim 1 or 2,
The second rotation connecting portion includes a bolt and a nut, and the bottom plate and the first side plate are rotatably connected by the bolt and the nut;
The engaging mechanism portion includes an engaging portion provided at a side end portion of the bottom plate and an engaged portion provided in the second side plate, and the engaging portion and the engaged portion are A foldable bonfire characterized by being engaged and disengaged. In claim 3,
The engaging portion of the engaging mechanism portion includes a hook, the engaged portion includes a vertically long hole, and the hook is engaged with and detached from the vertically long hole. Foldable bonfire stand. In any one of Claims 1 thru | or 4,
The first rotation connection portion includes a front first rotation connection portion that rotatably connects the front bent portion of the first side plate and the front bent portion of the second side plate, and the first side plate of the first side plate. A rear side first rotation connecting portion that rotatably connects the rear side bent portion and the rear side bent portion of the second side plate;
Two frame members rotatably connected to the front first rotation connecting portion and the rear first rotation connecting portion;
Each of the frame members includes a front leg rotatably connected to the front first rotary connection, a rear leg rotatably connected to the rear first rotary connection, and the front leg. And a frame main body part integrally connecting the rear leg part. In claim 5,
When the two frame members expand in a direction away from each other, the first side plate slit that stops the further expansion by inserting the front leg portion and the rear leg portion of one of the frame members, respectively. A second side plate slit, which is provided on the upper side of the side plate, is inserted into the front leg portion and the rear leg portion of the other frame member, and stops further expanding. A foldable bonfire stand characterized by being provided. In any one of claims 2 to 6,
A front opening that is surrounded by the first bent portion of the bottom plate, the front bent portion of the first side plate, and the front bent portion of the second side plate and communicates with the combustion space; At least one opening part of the 2nd bending part, the said back side bending part of the said 1st side plate, and the back side opening part enclosed with the said back side bending part of the said 2nd side plate and leading to the said combustion space A foldable bonfire characterized by comprising an opening adjusting member that adjusts the opening area of the frame. In claim 7,
A foldable bonfire, wherein the opening adjusting member is provided so as to be foldable. In claim 7 or 8,
A foldable bonfire, wherein the opening adjusting member is detachably provided. In any one of claims 7 to 9,
An insertion slit into which the opening adjusting member can be inserted is provided in the first side plate,
The opening adjusting member is assembled to the first side plate so as to be movable between a position folded on the inner surface side of the first side plate and a position closing the opening in a state where the opening adjusting member is inserted into the insertion slit. A foldable bonfire stand characterized by that. In claim 10,
The opening adjusting member includes a flat plate-shaped restriction main body that can be inserted into the insertion slit of the first side plate, a bent piece integrally provided on the insertion rear end side of the restricted main body, and a rear of the bent piece. A foldable bonfire stand comprising a grip portion integrally provided at an end.

Images