Windshield and stove systems

Abstract

To provide a technology for protecting a burner flame from wind, which improves versatility and portability while ensuring strength and stability. [Solution] A stove system for outdoor use is provided with a fuel tank (2) that stores fuel, a burner that receives fuel from the fuel tank (2) to generate a flame, and a windbreak (4) that blocks wind from reaching the flame. The windbreak (4) is provided with an attachment part (43) that is detachably fixed to the fuel tank (2) that stores fuel, a partition (40) that covers at least a portion of the periphery of the flame, and a connecting part (42) that connects the attachment part (43) and the partition (40).

Description

[Technical Field]

[0001] The present invention relates to a technique for protecting a burner flame by blocking wind. [Background technology]

[0002] It is known that portable burners are used for cooking or heating during camping or mountain climbing. Since such burners are intended for outdoor use, it is necessary to protect the flame from strong winds that may occur outdoors, so that the flame does not become unstable or go out.

[0003] Conventionally, for example, Patent Documents 1 to 3 describe windbreaks that protect a burner flame from wind by surrounding it with a planar member. Patent Document 1 describes a windbreak main body that fits onto a base placed above the burner. Patent Document 2 describes a windbreak wall material on which a trivet is placed in a cylindrical assembled state. Furthermore, Patent Document 3 describes a windbreak member that is attached to a leg member and is positioned to surround the periphery of a burner. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6868856 [Patent Document 2] Patent No. 6008907 [Patent Document 3] Utility Model Registration No. 3143162 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the technology described in Patent Document 1 has the problem that the windshield main body is placed on the burner section, limiting the number of burner sections that can be used. Furthermore, the technology described in Patent Document 2 has the problem that the trivet is attached to the windshield wall material, limiting the number of trivets that can be used. In fact, the technology described in Patent Document 2 uses a dedicated trivet. In other words, the technologies described in Patent Documents 1 and 2 have the problem of reduced versatility. Meanwhile, Patent Document 3 describes a leg member formed with a support section on which a burner can be placed. However, the burner in Patent Document 3 is simply placed on the leg member, resulting in poor stability. In other words, the technologies described in Patent Documents 1, 2, and 3 have problems with versatility and stability.

[0006] The present invention has been made in consideration of the above-mentioned problems, and aims to improve versatility and portability while ensuring strength and stability in a technology for protecting a burner flame from wind. [Means for solving the problem]

[0007] In order to solve the above problem, the invention of claim 1 is a windshield that blocks wind from a flame, and is equipped with an attachment means that is detachably fixed to an external fuel tank, a partition means that covers at least a portion of the periphery of the flame, and a connecting means that connects the attachment means and the partition means.

[0008] The invention of claim 2 is the windshield according to the invention of claim 1, wherein the attachment means grips the fuel tank.

[0009] The invention of claim 3 is the windshield according to the invention of claim 1, wherein the attachment means is fitted to the fuel tank.

[0010] The invention of claim 4 is the windshield according to the invention of claim 1, wherein the partition means is a flexible member, and the shape thereof can be changed during use.

[0011] The invention of claim 5 is the windshield according to the invention of claim 4, wherein the connecting means comprises shape fixing means for the partition means.

[0012] The invention of claim 6 is the windshield according to the invention of claim 1, wherein the attachment means is rotatable within a horizontal plane while being fixed to the fuel tank.

[0013] The invention of claim 7 is a stove system comprising a fuel tank for storing fuel, a burner that receives a supply of fuel from the fuel tank and forms a flame, and a windbreak that blocks wind from reaching the flame, wherein the windbreak comprises an attachment means that is detachably fixed to the fuel tank, a partition means that covers at least a portion of the periphery of the flame, and a connecting means that connects the attachment means to the partition means.

[0014] Furthermore, the invention of claim 8 is a stove system according to the invention of claim 7, further comprising a dish placed above the flame, and when the stove system is stored and not in use, the dish stores the fuel tank, the burner, and the windshield. [Effects of the Invention]

[0015] The inventions described in claims 1 to 6 are windbreaks that block wind from a flame and are equipped with mounting means that allow them to be detachably fixed to an external fuel tank. By attaching the windbreak to a highly standardized fuel tank, versatility is improved. Furthermore, by "fixing" the windbreak to the fuel tank rather than simply supporting it from below, stability during use is improved.

[0016] The inventions described in claims 7 and 8 are stove systems equipped with a windbreak that blocks wind from reaching the flame, and the windbreak is provided with an attachment means for detachably fixing to the fuel tank. By attaching the windbreak to a highly standardized fuel tank in this way, versatility is improved. Furthermore, by "fixing" the windbreak to the fuel tank rather than simply supporting it from below, stability during use is improved. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic external view showing a stove system according to a first embodiment. [Figure 2] FIG. [Figure 3] FIG. 2 is a perspective view showing a state in which the windshield according to the first embodiment is fixed to the fuel tank. [Figure 4] FIG. 2 is a perspective view showing a support portion in the first embodiment. [Figure 5] FIG. 2 is a plan view showing a plate-shaped member according to the first embodiment. [Figure 6] FIG. 3 is a plan view showing the positional relationship between the partition and the fuel tank in the first embodiment. [Figure 7] FIG. 3 is a plan view showing the positional relationship between the partition and the fuel tank in the first embodiment. [Figure 8] FIG. 2 is a perspective view showing a mounting portion in the first embodiment. [Figure 9] FIG. 10 is a plan view showing a mounting portion in the second embodiment. [Figure 10] FIG. 10 is a perspective view showing a state in which a connecting portion and a fuel tank are attached to a mounting portion in the second embodiment. [Figure 11] FIG. 11 is a perspective view showing a state in which a connecting portion is connected to an attachment portion in the third embodiment. [Figure 12] FIG. 10 is a plan view showing a plate-like member according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, unless otherwise specified, in the following description, descriptions of directions and orientations correspond to the drawings for the convenience of the description, and do not limit, for example, the implementation, product, or scope of rights.

[0019] 1. First Embodiment FIG. 1 is a schematic external view showing a stove system 1 according to a first embodiment. FIG. 1 illustrates an example of the position of the stove system 1 placed on a horizontal surface when in use. In FIG. 1, mutually perpendicular X-axis, Y-axis, and Z-axis are defined. The X-axis and Y-axis are both axes within a horizontal plane, and the Z-axis is an axis in the vertical direction. In the following explanation, unless otherwise specified, directions will be described using as an example the case where each part of the stove system 1 is placed in the position shown in FIG. 1 (when placed in a general use state).

[0020] The stove system 1 in the first embodiment includes a fuel tank 2, a burner unit 3, a windshield 4, a trivet 5, and tableware 6. As will be described in detail later, the stove system 1 forms an outdoor hearth and is used by users to cook food and drinks and to keep warm.

[0021] FIG. 2 is a diagram showing the fuel tank 2. The fuel tank 2 in the first embodiment is a commercially available disposable gas cylinder whose dimensions, shape, etc. conform to predetermined standards (e.g., EN417, GSI900 type, etc.). By employing a gas cylinder conforming to such standards as the fuel tank 2, the stove system 1 can reduce costs and improve versatility. Since conventional technology can be used for such a fuel tank 2, a brief description will be given below.

[0022] The fuel tank 2 includes a container 20, a nozzle 21 for discharging fuel, and a flange portion 22 formed in a cylindrical shape, and is configured as a portable gas cylinder.

[0023] The container 20 is a hollow metal member having a generally cylindrical appearance. The internal space of the container 20 is configured to be capable of storing fuel. The fuel in this embodiment is assumed to be a flammable liquefied gas, but is not limited to this. For example, the fuel may be a liquid such as kerosene.

[0024] Nozzle 21 is equipped with a plug that can be opened and closed freely, and when opened, discharges fuel from container 20 to the outside. When burner unit 3 is attached to fuel tank 2 and burner unit 3 is operated, fuel discharged from nozzle 21 is supplied toward burner unit 3.

[0025] The flange portion 22 is a protrusion provided on the outer surface (neck portion) of the fuel tank 2. As already explained, the fuel tank 2 is a product defined by standards. Therefore, the shape (external dimensions, etc.) and position of the flange portion 22 are also defined by the standards. As will be described in detail later, the windshield 4 is attached directly to the outside of the flange portion 22.

[0026] The fuel tank 2 is not limited to a standard product, but may be a product dedicated to the stove system 1. However, if a dedicated product is used, it is preferable to configure the fuel tank 2 so that it can be refilled with fuel, rather than discarding and replacing the fuel tank 2 every time the fuel runs out.

[0027] Returning to FIG. 1 , burner unit 3 is attached to fuel tank 2 and has the function of receiving fuel from fuel tank 2 to form a flame. Burner unit 3 is attached to the inside of nozzle 21 or flange 22 of fuel tank 2, etc. Since conventional technology can be used for such burner unit 3, details will be omitted. For example, burner unit 3 includes a combustion unit that forms the flame, an ignition unit that ignites the fuel, a knob that adjusts the amount of fuel supplied and the like to adjust the combustion conditions of the flame, and an attachment unit that detachably attaches burner unit 3 to fuel tank 2.

[0028] The user can attach the burner unit 3 to the fuel tank 2 using the attachment part, and open the fuel tank 2 by operating the knob on the burner unit 3. This causes fuel to be supplied from the fuel tank 2 to the burner unit 3. Next, the user operates the ignition part to ignite the supplied fuel. This allows the user to form a flame in the combustion part of the burner unit 3.

[0029] The windbreak 4 has the function of blocking wind from hitting the flame formed by the burner unit 3. It is expected that strong winds will occur in the environment in which the stove system 1 is used, outdoors, particularly in high mountains visited for mountain climbing. If strong winds directly hit the flame of the burner unit 3, the flame may become unstable and go out, and in some cases, it may even spread to the surrounding area. However, by providing the windbreak 4, the stove system 1 can protect the flame of the burner unit 3 and be used safely. Details of the windbreak 4 in the first embodiment will be described later.

[0030] The trivet 5 is connected to the burner unit 3 and is positioned in the (+Z) direction of the burner unit 3. A trivet 5 that can be connected to the burner unit 3 in this way can be realized by applying conventional technology. The trivet 5 constitutes a device for placing tableware 6 above (in the (+Z) direction) the flame formed by the burner unit 3. In other words, the trivet 5 positions the tableware 6 in a predetermined position by supporting it from below (in the (-Z) direction).

[0031] It is preferable that the trivet 5 has a member for supporting the tableware 6 that can be folded, for example.

[0032] Although not shown in detail, the tableware 6 is composed of a cylindrical portion that forms the side surface and a disk portion that forms the bottom surface. In the first embodiment, the inner diameter size of the tableware 6 is designed to be larger than the outer diameter size of the fuel tank 2. Furthermore, the Z-axis size of the cylindrical space that forms the internal space of the tableware 6 is designed to be larger than the Z-axis size of the fuel tank 2. In other words, the tableware 6 forms a container that can accommodate the fuel tank 2 inside.

[0033] The tableware 6 may also be provided with a lid, a handle, a spout, and the like.

[0034] 3 is a perspective view showing the state in which the windshield 4 in the first embodiment is fixed to the fuel tank 2. In other words, in FIG. 3, the burner unit 3, the trivet 5, and the tableware 6 are omitted from the configuration of the stove system 1.

[0035] The windshield 4 in the first embodiment includes a partition 40 and a support portion 41.

[0036] The partition 40 has the function of covering at least a portion of the periphery of the flame formed in the burner section 3. The partition 40 in the first embodiment is a sheet-like member. In this way, by constructing the partition 40 from a sheet-like member that is thinner than a plate, rather than a plate, the weight of the member for blocking wind can be reduced compared to conventional techniques.

[0037] As will be described in more detail below, the partition 40 is firmly supported in a three-dimensional deployment by the support portion 41. Therefore, even if the partition 40, which is a wind-blocking member, is a relatively thin, sheet-like member, it will not succumb to wind pressure. Also, if the partition 40 is made too light in order to emphasize portability, it is conceivable that it will be blown away by the wind. However, even if the partition 40 is lightweight, it is firmly fixed by the support portion 41, and the stove system 1 as a whole has sufficient weight to not be blown away by the wind, so this is not a problem.

[0038] Furthermore, the partition 40 is designed to be sized so that when in use, it does not completely surround the flame of the burner section 3 360°, but rather leaves a gap (when the sliding door is open), as shown in Figure 3.

[0039] Generally, wind does not occur randomly, but is expected to blow in a certain direction (from upwind to downwind) to a certain extent. Therefore, if the user installs windshield 4 with the (+Y) side facing upwind, even if a gap occurs in partition 40 on the (-Y) side, the flame of burner unit 3 will not be affected to the extent that it becomes unstable.

[0040] On the other hand, the burner unit 3 is provided with a knob (operating unit) for adjusting the state of the flame. The user may be required to operate the operating unit of the burner unit 3 even during use. In conventional technology, a member for blocking wind completely surrounds the flame, so if the operating unit is placed near the flame, there is a problem that the user may be burned and it is difficult to operate. In other words, in conventional technology, it was necessary to devise a positioning of the operating unit on the burner that generates the flame. However, the windshield 4 allows the user to reach inside and operate it without being interfered with by the flame.

[0041] In the prior art, some wind-blocking components have been proposed that can be disassembled when not in use, but the shape of the components remains fixed when in use. In contrast, the partition 40 in the first embodiment is made of a flexible material. Therefore, the curvature of the partition 40 when bent into a generally cylindrical shape can be freely changed. Possible materials for such a partition 40 include, but are not limited to, metal sheet-like materials. However, the partition 40 must be strong enough to withstand wind pressure, and therefore, even if it is a metal sheet-like material, a material such as aluminum foil is inappropriate.

[0042] Although not shown in the drawings, the partition 40 becomes substantially rectangular when deformed along a plane without being curved. In the following description, the direction parallel to the Z-axis direction when in use of the partition 40 is defined as the "vertical direction," and the direction perpendicular to the vertical direction is defined as the "circumferential direction."

[0043] As will be described in detail later, the size of the windshield 4 can be changed by changing the curvature (diameter of the cylinder) of the partition 40 when it is curved into a generally cylindrical shape around an axis generally parallel to the vertical direction of the partition 40. For example, by reducing the diameter and narrowing the cylinder formed by the partition 40, the area exposed to the wind is reduced, thereby suppressing the wind pressure acting on the partition 40. This is effective in strong winds. On the other hand, by increasing the diameter and thickening the cylinder formed by the partition 40, the gap becomes larger, allowing the user to more easily access the interior (such as the operating section of the burner unit 3). Alternatively, in this case, the larger internal space formed by the partition 40 increases the flexibility of the appliances that can be placed inside (such as the burner unit 3, trivet 5, and tableware 6), improving versatility.

[0044] Furthermore, the vertical size of the partition 40 is designed to be smaller than the size of the inner side surface of the tableware 6 in the Z-axis direction. As a result, by deforming the diameter of the cylinder formed by the partition 40 so that it is smaller than the inner diameter of the tableware 6, the partition 40 can be placed along the inner side surface of the tableware 6. Therefore, when the windshield 4 is disassembled, the stove system 1 can use the tableware 6 as a container for the partition 40. For example, the user can easily make the fuel tank 2 and the partition 40 storable in the tableware 6 by rolling up the partition 40 so that it fits along the outer periphery of the fuel tank 2.

[0045] A substantially rectangular slit 400 that is long in the vertical direction is formed in the partition 40. The slit 400 is formed as a through-hole that penetrates the inner and outer surfaces, and communicates between the inside and outside of the partition 40. In the first embodiment, the partition 40 has a large number of pairs of slits 400 that are lined up in the vertical direction formed in the circumferential direction.

[0046] As shown in Fig. 3, the protrusions 445 of the support part 41 are inserted into the slits 400. As will be described in detail later, the support part 41 in the first embodiment is provided with only three protrusions 445. On the other hand, the partition 40 has many slits 400 (more than three) formed in different positions. The user can select three slits 400 from the many slits 400 into which to insert the protrusions 445.

[0047] For example, by selecting three slits 400 so that the spacing between the slits 400 into which the convex portions 445 are inserted is small, the diameter of the cylinder formed by the partition 40 can be fixed in a small state. On the other hand, by selecting three slits 400 so that the spacing between the slits 400 into which the convex portions 445 are inserted is large, the diameter of the cylinder formed by the partition 40 can be fixed in a large state. Furthermore, by selecting the (-Z) side of a set of slits 400 aligned vertically, the partition 40 will be positioned as shown in FIG. 3. Furthermore, by selecting the (+Z) side of a set of slits 400 aligned vertically, the partition 40 will be positioned on the (-Z) side of the position shown in FIG. 3. In this way, the windshield 4 in the first embodiment has improved versatility in terms of the shape and position of the partition 40.

[0048] Furthermore, since the partition 40 has more than three slits 400, some slits 400 are not used to insert the protrusions 445 when in use. These unused slits 400 function as, for example, ventilation openings in the windshield 4.

[0049] In the stove system 1, the airflow (wind) against the flame does not have to be completely blocked; it is sufficient, for example, that it does not destabilize the flame in the burner section 3. On the other hand, oxygen must be supplied from outside for the flame to burn. The opening area of ​​the slits 400 in the partition 40 is designed to be small enough so that the passing airflow does not destabilize the flame. Therefore, such airflow supplies oxygen to the flame and prevents incomplete combustion of the flame. In other words, the partition 40 can have an opening (slit 400) in a portion that is positioned upwind (a portion that is positioned in the direction in which oxygen is supplied) by using slits 400 with a small opening area.

[0050] The support part 41 includes a connecting part 42 for attaching the partition 40, and an attachment part 43 for attaching the windshield 4 to the fuel tank 2 (flange part 22) as shown in Fig. 3. In other words, the support part 41 is a member for arranging the partition 40 in a predetermined position.

[0051] 4 is a perspective view showing support part 41 in the first embodiment. Connecting part 42 in the first embodiment is made up of three plate-like members 44, 45, and 46. Support part 41 is formed by combining connecting part 42 (the three plate-like members 44, 45, and 46) with mounting part 43.

[0052] In the first embodiment, the plate-like members 44, 45, and 46 of the connecting portion 42 are configured as equivalent members. Therefore, in the following description, unless otherwise specified, the plate-like members 44, 45, and 46 will be described using the plate-like member 44 as an example.

[0053] 5 is a plan view showing plate-shaped member 44 in the first embodiment. Plate-shaped member 44 is an integrally structured member formed by punching out a metal plate. Plate-shaped member 44 in the first embodiment includes a hook portion 440, a pillar portion 441, and a fixing portion 442.

[0054] Hook portion 440 is integrally connected to pillar portion 441 by connecting portion 443. Hook portion 440 is also formed with a protrusion 444. Details will be described later, but hook portion 440 is a portion that is inserted into attachment portion 43 as shown in FIG.

[0055] The pillar portion 441 connects the hook portion 440 and the fixed portion 442. The pillar portion 441 is provided to position (raise) the fixed portion 442 more in the (+Z) direction relative to the hook portion 440. As will be described in detail later, the partition 40 is fixed to the fixed portion 442. Therefore, the windshield 4 can position the partition 40 in the (+Z) direction compared to when the pillar portion 441 is not provided.

[0056] In this way, by lifting the partition 40 with the pillars 441, the windshield 4 can be configured not to obstruct the flow of wind to the fuel tank 2. This allows the fuel tank 2 to be cooled appropriately, preventing the fuel tank 2 from becoming excessively heated.

[0057] The fixed portion 442 has a protrusion 445, and notches 446, 447, and 448 formed on the side surface on the (+Z) side.

[0058] 3, the protrusion 445 is the part that is inserted into the slit 400 of the partition 40. Therefore, the thickness of the fixing part 442 (plate-like members 44, 45, 46) is designed to be smaller than the horizontal (circumferential) width of the slit 400. The protrusion 445 forms the tip that protrudes from the outer surface of the partition 40 when the fixing part 442 penetrates the partition 40 from the inner surface to the outer surface.

[0059] The three notches 446, 447, and 448 are formed in the fixing portion 442 in the order of notch 446, notch 447, and notch 448 in ascending order of distance from the protruding portion 445.

[0060] Each of the notches 446, 447, and 448 forms a slit that opens in the (+Z) direction. In the fixed portion 442, the notches 446, 447, and 448 are formed to have the same shape.

[0061] The (+Z) side portion of the partition 40 that forms the slit 400 is inserted in the (-Z) direction into the notches 446, 447, 448. Therefore, the width of the notches 446, 447, 448 is designed to be larger than the thickness of the partition 40.

[0062] By inserting the partition 40 into the fixing portion 442 in this manner, movement of the partition 40 in the (-Z) direction is restricted by the abutment between the ceiling surface of the slit 400 and the upper surface of the fixing portion 442, which forms the notches 446, 447, and 448. Furthermore, horizontal movement of the partition 40 is restricted by the plate-like portions of the fixing portion 442 below the notches 446, 447, and 448 being sandwiched between both sides of the slit 400. Furthermore, movement of the partition 40 in the (+Z) direction is restricted mainly by gravity. Therefore, the fixing portion 442 has the function of fixing the partition 40 by the notches 446, 447, and 448.

[0063] As already explained, the partition 40 is a flexible and deformable member, but the fixing portions 442 provided on the three plate-like members 44, 45, and 46 fix the partition 40 at predetermined locations, thereby providing a so-called three-point fixation. This improves the stability of the partition 40.

[0064] Each fixing portion 442 has three notches 446, 447, and 448 at different positions, and usually one of them is selected as the notch for fixing the partition 40. For example, Figure 3 shows an example in which the notch 448 is selected for fixing the partition 40 in all three fixing portions 442 (fixing portions 442 of plate-like members 44, 45, and 46).

[0065] Fig. 6 is a plan view showing the positional relationship between the partition 40 and the fuel tank 2 in the first embodiment. Fig. 6 is a plan view of the state of Fig. 3 as seen in the (-Z) direction.

[0066] 6, the partition 40 is fixed to the notch 448 of the fixing portion 442. By selecting the notch 448 in the fixing portion 442 that is closest to the protrusion 445, the diameter of the cylinder formed by the partition 40 becomes the largest.

[0067] In this case, as long as the dimensions of the flange portion 22 are compatible, the windshield 4 can be used even if the dimensions of the container 20 of the fuel tank 2 are changed (changed to a larger size). In other words, the windshield 4 can also comply with new standards, for example, even if only the size of the container 20 is different.

[0068] In addition, while FIG. 1 shows the trivet 5 and tableware 6 being used above the windshield 4, it is also possible to use a relatively compact trivet 5 and tableware 6 and place them inside the partition 40. By enlarging the diameter of the partition 40, the windshield 4 allows for the use of larger trivets 5 and tableware 6 inside the partition 40, improving versatility.

[0069] Fig. 7 is a plan view showing the positional relationship between partition 40 and fuel tank 2 in the first embodiment. Fig. 7 shows an example in which notch 446 is selected in all three fixing portions 442 (fixing portions 442 of plate-like members 44, 45, and 46) to fix partition 40. By selecting notch 446 in fixing portion 442 that is farthest from protrusion 445, the diameter of the cylinder formed by partition 40 becomes the smallest.

[0070] Returning to Fig. 5, plate-shaped member 44 is formed with a plurality of window portions 449. Window portions 449 are through-holes that penetrate plate-shaped member 44 from the front surface to the back surface in Fig. 4. As shown in Fig. 5, plate-shaped member 44 in the first embodiment is formed with two window portions 449 with triangular through-hole opening shapes and three window portions 449 with rectangular opening shapes.

[0071] Forming the window portions 449 in this manner makes it possible to reduce the weight of the plate-like members 44, 45, and 46. However, the opening shape and number of the window portions 449 are not limited to the example shown here. The shape and number of the window portions 449 are appropriately determined depending on the strength, weight, and other factors required of the plate-like members 44, 45, and 46 (connecting portion 42).

[0072] 8 is a perspective view showing the mounting portion 43 in the first embodiment. The mounting portion 43 includes a plate-shaped member 47, a plate-shaped member 48, and a spring 49.

[0073] Plate-shaped member 47 is formed by punching out a metal plate, for example, to form slits 471 and 473, notches 472 and 474, an operating portion 475, and a hole to which one end of spring 49 is fixed. In addition, cylindrical portion 470 is integrally fixed to the surface on the (+Z) side of plate-shaped member 47 by welding.

[0074] Plate-shaped member 48 is formed by punching out a metal plate, for example, and is thereby formed with slit 481, notch 482, and a hole to which one end of spring 49 is fixed. Furthermore, plate-shaped member 48 is formed with a step in the Z-axis direction, and a through-hole (not shown) into which cylindrical portion 470 of plate-shaped member 47 is inserted is formed in the portion disposed on the (+Z) side. Due to such a step, the positions of slit 481 and notch 482 in the Z-axis direction are the same as the positions of slits 471, 473 and notches 472, 474 of plate-shaped member 47 in the Z-axis direction.

[0075] When the plate-like members 47 and 48 are combined, a gap 430 is formed in the attachment portion 43 .

[0076] Furthermore, when the plate-shaped members 47 and 48 are combined, the cylindrical portion 470 of the plate-shaped member 47 is inserted into the through hole of the plate-shaped member 48, so that the plate-shaped member 48 can rotate relative to the plate-shaped member 47 with the cylindrical portion 470 as the central axis.

[0077] In a plan view seen in the (-Z) direction, when plate-shaped member 48 rotates clockwise, plate-shaped member 47 and plate-shaped member 48 move closer to each other, and gap 430 between the two members closes. On the other hand, in a plan view seen in the (-Z) direction, when plate-shaped member 48 rotates counterclockwise, plate-shaped member 47 and plate-shaped member 48 move away from each other, and gap 430 between the two members opens.

[0078] The spring 49 of the mounting portion 43 is a member formed by winding a flexible metal wire in a spiral shape. Both ends of the spring 49 are inserted into and fixed to the plate-shaped members 47 and 48, respectively. The cylindrical portion 470 of the plate-shaped member 47 is inserted into the spiral portion of the spring 49. This allows the spring 49 to provide a biasing force for the rotational movement of the plate-shaped member 48. The spring 49 is configured to generate a biasing force in a direction that closes the gap 430 of the mounting portion 43.

[0079] The user places the flange portion 22 of the fuel tank 2 in the gap 430 of the mounting portion 43, and then presses the operating portion 475 in the (-Y) direction. This causes the plate-shaped member 48 to rotate counterclockwise against the biasing force of the spring 49, opening the gap 430 and positioning the flange portion 22 in the center of the mounting portion 43. Then, once the flange portion 22 is positioned in the center of the mounting portion 43, the plate-shaped member 48 rotates clockwise due to the biasing force of the spring 49, closing the gap 430.

[0080] In this way, the flange portion 22 disposed in the center of the mounting portion 43 is sandwiched between the plate-like members 47 and 48. In other words, the mounting portion 43 has a mechanism for gripping the flange portion 22 with the plate-like members 47 and 48.

[0081] In the stove system 1 of this embodiment, a standard fuel tank 2 is used, so the dimensions of the flange portion 22 can be assumed to be standardized. However, the standard dimensions are set as values ​​that allow for a certain degree of margin of error. Therefore, if the mounting portion 43 does not have a structure that allows for margin of error, it is possible that the windshield 4 will not be properly attached to the fuel tank 2, or that it will not be possible to attach it at all.

[0082] However, the mounting portion 43 has a structure that allows it to be attached to the flange portion 22 by gripping it. Therefore, even if there is an error in the flange portion 22 that meets the standard to the extent that the standard allows, the mounting portion 43 can be attached to the flange portion 22 without any problems. This allows for an error in the dimensions of the flange portion 22, which improves the versatility of the windshield 4 compared to cases where the size of the fuel tank 2 that can be attached is strictly required.

[0083] The mounting portion 43 grips a cylindrical portion formed on the flange portion 22. Therefore, the mounting portion 43 can be rotated in a horizontal plane around the cylindrical portion as an axis while being gripped. In other words, by rotating the mounting portion 43 while gripping the flange portion 22, the user can rotate the partition 40 around an axis parallel to the Z axis.

[0084] For example, when the wind direction changes, the user can respond by rotating the partition 40 so that the changed direction (the new upwind direction) is in the (+Y) direction. Because the partition 40 is lighter than conventional technology, this operation is easy. Furthermore, this operation does not require moving the fuel tank 2, which eliminates the need to move the burning flame, making it safer. Furthermore, because the windshield 4 in the first embodiment does not have a trivet 5 attached, this operation does not require moving not only the trivet 5 but also heavy objects such as dishes 6. Therefore, the stove system 1 not only reduces the burden of user operations to respond to changes in wind direction, but also reduces the risk of tipping over dishes 6.

[0085] The mounting portion 43 can be easily removed from the flange portion 22 by the user rotating the plate-shaped member 48 counterclockwise against the biasing force of the spring 49. In other words, the mounting portion 43 has a structure that allows it to be detachably fixed to the fuel tank 2.

[0086] Meanwhile, the hook portion 440 of the plate-shaped member 44 is inserted into the slit 471 of the plate-shaped member 47 so as to penetrate from the (+Z) side to the (-Z) side, and the convex portion 444 of the hook portion 440 fits into the notch 472. At this time, the connection portion 443 of the plate-shaped member 44 is disposed inside the slit 471.

[0087] Further, the hook portion 440 of the plate-shaped member 45 is inserted into the slit 473 so as to penetrate from the (+Z) side to the (-Z) side, and the convex portion 444 of the hook portion 440 fits into the notch 474. At this time, the connection portion 443 of the plate-shaped member 45 is disposed inside the slit 473.

[0088] Furthermore, the hook portion 440 of the plate-shaped member 46 is inserted into the slit 481 of the plate-shaped member 48 so as to penetrate from the (+Z) side to the (-Z) side, and the convex portion 444 of the hook portion 440 fits into the notch 482. At this time, the connection portion 443 of the plate-shaped member 46 is disposed inside the slit 481.

[0089] 4, the connecting portion 42 (plate-like members 44, 45, 46) is attached to the mounting portion 43. Note that by operating the connecting portion 42 in the reverse direction, the connecting portion 42 can also be easily removed from the mounting portion 43. In other words, the connecting portion 42 is configured to be detachably attached to the mounting portion 43.

[0090] In this way, the hook portions 440 of the plate-like members 44, 45, and 46 of the connecting portion 42 are attached to the mounting portion 43. On the other hand, as already explained, the fixing portions 442 of the plate-like members 44, 45, and 46 of the connecting portion 42 are fixed to the partition 40. Therefore, the connecting portion 42 can connect the mounting portion 43 and the partition 40.

[0091] The support part 41 is configured to be disassembled into three plate-like members 44, 45, and 46 and a substantially plate-like mounting part 43. Therefore, when disassembled, the support part 41 can be stored compactly and can be housed inside the tableware 6 together with the fuel tank 2 and the partition 40.

[0092] As described above, stove system 1 includes fuel tank 2 for storing fuel, burner unit 3 that receives fuel from fuel tank 2 to generate a flame, and windbreak 4 that blocks wind from reaching the flame. Windbreak 4 includes mounting unit 43 that is detachably fixed to fuel tank 2, partition 40 that covers at least a portion of the periphery of the flame, and connecting unit 42 that connects mounting unit 43 to partition 40. Attaching windbreak 4 to fuel tank 2, which is a highly standardized system, improves versatility compared to conventional technology where windbreak 4 is attached to a non-standard trivet or burner. Furthermore, by "fixing" the fuel tank to fuel tank 2 rather than simply supporting it from below, stability during use is improved.

[0093] Furthermore, in the technology described in Japanese Patent No. 6868856, the windbreak member (windshield main body) is directly integrated with the trivet. When the windbreak member and trivet are directly integrated in this way, the weight of the windshield, trivet, and tableware (including food) and the wind pressure on the windshield are added to the member that attaches them to the fuel tank. Therefore, a considerable strength is required for the attachment mechanism to the fuel tank (or a structure that allows it to be placed on the ground is required). However, in the first embodiment, the windshield 4 is not directly integrated with the trivet 5, but is fixed directly to the fuel tank 2. Therefore, the strength required for the attachment portion 43 is reduced compared to conventional technology.

[0094] Furthermore, the partition 40 of the windshield 4 does not have a trivet section or a trivet placed on it, as in the technology described in Japanese Patent No. 6868856. Therefore, there is no need for the partition 40 to have a sturdy structure. This makes it possible to use, for example, a flexible material for the partition 40.

[0095] Furthermore, the mounting portion 43 of the windshield 4 grips the fuel tank 2. This allows for slight changes in the size of the fuel tank 2, improving versatility.

[0096] Furthermore, conventional technologies have had the problem that the size of the components surrounding the flame (windshield main body or windshield components) is fixed during use. In this case, there are problems with the sizes of burners and trivets that can be used during use being limited, and the device cannot flexibly adapt to different usage situations. In other words, conventional technologies have had problems with versatility and adaptability. However, the partition 40 of the windshield 4 is a flexible component, and its shape can be changed during use. In this way, changing the shape of the partition 40 during use improves versatility.

[0097] Furthermore, the connecting portion 42 of the windshield 4 includes a fixing portion 442 that fixes the shape of the partition 40. This improves the stability of the partition 40, whose shape can be changed.

[0098] Furthermore, the mounting portion 43 is rotatable in a horizontal plane while being fixed to the fuel tank 2. This makes it possible to easily respond to changes in wind direction during use, for example.

[0099] The stove system 1 further includes a dish 6 placed above the flame, and when the stove system 1 is stored and not in use, the dish 6 stores the fuel tank 2, the burner unit 3, and the windshield 4. This improves the portability of the stove system 1.

[0100] <2. Second embodiment> The mounting portion 43 in the first embodiment has been described as a mechanism for gripping the fuel tank 2. However, the mechanism for mounting the windshield 4 to the fuel tank 2 is not limited to the mounting portion 43. In particular, when the dimensions of the fuel tank 2 can be obtained relatively accurately (for example, when the fuel tank 2 is a dedicated product), a simpler structure may be used.

[0101] 9 is a plan view showing the mounting portion 43a in the second embodiment. The windshield 4 in the second embodiment differs from the windshield 4 in the first embodiment in that it has a mounting portion 43a instead of the mounting portion 43. In the following explanation, the same components of the mounting portion 43a as those of the mounting portion 43 are denoted by the same reference numerals, and explanations thereof will be omitted where appropriate.

[0102] Mounting portion 43a is a plate-like, integrated metal structure that forms a ring in a plan view. While mounting portion 43 in the first embodiment is composed of three members (plate-like members 47 and 48 and spring 49), mounting portion 43a in the second embodiment is molded as a single member. This eliminates the need to manufacture a variety of complex members, making mounting portion 43a less expensive than mounting portion 43.

[0103] Mounting portion 43a has slits 471, 473, and 481 formed therein, as well as cutouts 472, 474, and 482, similar to mounting portion 43. Slits 471, 473, and 481 and cutouts 472, 474, and 482 have the same structure as in the first embodiment, and are connected to connecting portion 42 in windshield 4 in the second embodiment as well.

[0104] A substantially circular through-hole 431 is formed in the center of the mounting portion 43a. The flange portion 22 is inserted into the through-hole 431 from the (-Z) side, whereby the mounting portion 43a is fitted and attached to the fuel tank 2.

[0105] FIG. 10 is a perspective view showing a state in which the connecting portion 42 and the fuel tank 2 are attached to the attachment portion 43a in the second embodiment.

[0106] As described above, the mounting portion 43a is attached like a collar to the flange portion 22 of the fuel tank 2 by fitting the flange portion 22 into the through-hole 431. Even with this structure, the mounting portion 43a can rotate while attached to the flange portion 22, just like the mounting portion 43. Therefore, the windshield 4 in the second embodiment can also adjust the orientation of the partition 40 according to the wind direction, for example.

[0107] The size of the through-hole 431 in the mounting portion 43a is generally fixed (the mounting portion 43a is made of metal and therefore has some flexibility), and is formed according to the size of the flange portion 22. Therefore, if the dimensions of the flange portion 22 are designed relatively accurately, even a snap-in type like the mounting portion 43a will be sufficient to detachably mount the windshield 4 to the fuel tank 2.

[0108] As described above, the windshield 4 in the second embodiment can also achieve the same effects as the windshield 4 in the first embodiment.

[0109] Furthermore, in the windshield 4 of the second embodiment, the mounting portion 43a is fitted to the fuel tank 2, thereby simplifying the structure and reducing costs.

[0110] <3. Third Embodiment> In the above embodiment, the connecting portion 42 is described as being constituted by the plate-like members 44, 45, and 46 each having a pillar portion 441, but the present invention is not limited to this configuration. A simpler structure may also be used.

[0111] FIG. 11 is a perspective view showing a state in which the connecting portion 42a is connected to the attachment portion 43 in the third embodiment.

[0112] The windshield 4 in the third embodiment differs from the windshield 4 in the first embodiment in that it has a connecting portion 42a instead of the connecting portion 42. In the following explanation, the same components of the connecting portion 42a as those of the connecting portion 42 are given the same reference numerals, and explanations thereof will be omitted as appropriate. Note that the spring 49 of the mounting portion 43 is omitted in Figure 11.

[0113] The connecting portion 42a in the third embodiment differs from the connecting portion 44 in the first embodiment in that it is made up of three plate-like members 44a, 45a, and 46a.

[0114] In the connecting portion 42a in the third embodiment, the plate-shaped members 44a, 45a, and 46a are also configured as equivalent members. Therefore, in the following description, unless otherwise specified, the plate-shaped members 44a, 45a, and 46a will be described using the plate-shaped member 44a as an example.

[0115] 12 is a plan view showing a plate-shaped member 44a according to the third embodiment. The plate-shaped member 44a is an integrally formed member formed by punching out a metal plate. The plate-shaped member 44a according to the third embodiment includes a hook portion 440 and a fixing portion 442a.

[0116] On the other hand, the plate-shaped member 44a in the third embodiment does not have a structure equivalent to the column portion 441. This allows the plate-shaped member 44a to be manufactured at a lower cost than the plate-shaped member 44.

[0117] The hook portion 440 is directly and integrally connected to the fixing portion 442a by a connecting portion 443. In addition, the hook portion 440 has a protrusion 444 formed thereon.

[0118] The fixed portion 442a has a protrusion 445, similar to the fixed portion 442 in the first embodiment, and has notches 446, 447, and 448 formed on the side surface on the (+Z) side.

[0119] Like the protrusion 445 of the fixed portion 442, the protrusion 445 of the fixed portion 442a is a portion that is inserted into the partition 40. Also, like the notches 446, 447, and 448 of the fixed portion 442, the notches 446, 447, and 448 of the fixed portion 442 are portions into which the partition 40 is inserted.

[0120] Even when such a connecting portion 42a is used, the partition 40 can be connected to the attachment portion 43 in the same way as the connecting portion 42.

[0121] As described above, the windshield 4 in the third embodiment can also achieve the same effects as the windshield 4 in the first embodiment.

[0122] Furthermore, in the windshield 4 of the third embodiment, the connecting portion 42a does not include the pillar portion 441, which simplifies the structure and reduces costs.

[0123] <4. Modifications> Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and can be modified in various ways.

[0124] For example, the three cutouts 446, 447, and 448 selected when fixing the partition 40 do not necessarily have to be common to all of the plate-shaped members 44, 45, and 46. For example, the cutout 448 may be selected in the plate-shaped member 45, and the cutout 446 may be selected in the plate-shaped members 44 and 46. In that case, the partition 40 will not be substantially circular in plan view, but will be substantially elliptical.

[0125] Furthermore, for example, the number of notches formed in fixing portion 442 is not limited to three. As long as there are two or more notches, it is possible to change the shape of partition 40 during use.

[0126] In the above embodiment, the partition 40 has been described as an integrated structure. However, the partition 40 may be formed by partially overlapping two or more sheet-like members, for example, like two sliding doors with portions overlapping each other. In this case, for example, the slits 400 in the overlapping portions of the two sheets may be arranged to communicate with each other, and the fixing portion 442 of the plate-like member 45 may be arranged to pass through the communicating slits 400. With this configuration, even if the diameter size is changed, the width of the gap can be kept constant by widening the overlapping portion. [Explanation of symbols]

[0127] 1. Stovetop System 2 fuel tanks 20 containers 21 nozzles 22 Flange 3 Burner section 4 Windshield 40 Folding screen 400,471,473,481 Slit 41 Support part 42,42a Connection part 43, 43a Mounting part 430 Gap 431 Through hole 44, 44a, 45, 45a, 46, 46a, 47, 48 Plate-shaped members 440 Hook part 441 Column section 442,442a Fixed part 443 Connection 444,445 Convex part 446,447,448,472,474,482 Notch 449 Window 470 Cylindrical part 475 Operation section 49 Spring 5 trivet 6. Tableware

Claims

1. A windbreak that blocks wind against a fire, an attachment means that is removably fixed to an external fuel tank; A partition means for covering at least a part of the periphery of the flame; a connecting means for connecting the mounting means and the partition means; A windshield with a.

2. The windshield according to claim 1, The attachment means is a windshield that grips the fuel tank.

3. The windshield according to claim 1, The attachment means is a windshield that fits onto the fuel tank.

4. The windshield according to claim 1, The partition means is a flexible member, and the shape of the windshield can be changed during use.

5. The windshield according to claim 4, The windshield in which the connecting means comprises a shape fixing means for the partition means.

6. The windshield according to claim 1, The windshield is rotatable in a horizontal plane while being fixed to the fuel tank.

7. 1. A stove system comprising: a fuel tank for storing fuel; a burner that receives the fuel from the fuel tank and forms a flame; a windshield that blocks wind from the flame; Equipped with The windshield is mounting means detachably fixed to the fuel tank; A partition means for covering at least a part of the periphery of the flame; a connecting means for connecting the mounting means and the partition means; A stove system comprising:

8. 8. The stove system of claim 7, Further comprising a dish to be placed above the flame; When the stove system is stored and not in use, the tableware stores the fuel tank, the burner, and the windshield.

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