Wind shield for alcohol stove and alcohol stove set

Abstract

To provide a wind shield for an alcohol stove which can be folded compactly so as to be stored in a main chamber of the alcohol stove and can be stored or carried together with the alcohol stove.SOLUTION: A wind shield 20 for an alcohol stove is formed by a band-like metal plate 20a which may be curved into a cylindrical shape and installed enclosing an alcohol stove 10. In the wind shield 20, a lower band-like part 21 forming the lower edge side of the band-like metal plate 20a and an upper band-like part 22 forming the upper edge side of the band-like metal plate 20a are formed separately. The lower band-like part 21 and the upper band-like part 22 are connected in a foldable state so that the upper band-like part 22 overlaps with the lower band-like part 21.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a windshield for an alcohol stove that protects the alcohol stove from wind, and an alcohol stove set that uses the same. [Background technology]

[0002] Alcohol stoves are used when using fire outdoors, such as camping. Alcohol stoves are used by pouring alcohol into the main chamber and lighting the alcohol. However, if the alcohol stove is exposed to wind, the fire may go out. For this reason, alcohol stoves are surrounded by a windshield.

[0003] Various types of windshields have been proposed for use with heating devices such as alcohol stoves. For example, Patent Document 1 proposes a windshield for use with a portable burner (heating device), which is a windshield member (windshield) integrated with a trivet. [Prior art documents] [Patent documents]

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

[0005] However, the windshield of Patent Document 1 is cylindrical and bulky. In addition, the windshield of Patent Document 1 needs to be stored and transported separately from the heating device. For this reason, there is a risk that the windshield of Patent Document 1 will be lost or forgotten to be taken with it.

[0006] The present invention has been made to solve the above problems, and aims to provide a windshield for an alcohol stove that can be folded compactly so as to be stored in the main chamber of the alcohol stove (heating device) and can be stored or transported together with the alcohol stove. Another object of the present invention is to provide an alcohol stove set that uses the windshield for an alcohol stove. [Means for solving the problem]

[0007] The above issues are: The cylindrical member is formed of a metal strip that can be bent into a cylindrical shape. It is installed in a state where it surrounds the alcohol stove. A windshield for an alcohol stove, comprising: A lower belt portion that forms a lower edge side of the belt-shaped metal plate; an upper belt-shaped portion forming an upper edge side of the belt-shaped metal plate; is considered a separate entity, The lower belt portion and the upper belt portion are connected in a foldable state so that the upper belt portion overlaps the lower belt portion. A windshield for an alcohol stove, characterized by This is solved by providing

[0008] The above-mentioned alcohol stove windshield can be folded so that the upper band portion overlaps the lower band portion, and then rolled up in the longitudinal direction to fit within the diameter and height of the main chamber of the alcohol stove. Effect of the Invention

[0009] As described above, the present invention makes it possible to provide a windshield for an alcohol stove that can be folded compactly so as to be stored in the main chamber of the alcohol stove (heating device) and can be stored or transported together with the alcohol stove. It is also possible to provide an alcohol stove set that uses the windshield for an alcohol stove. [Brief description of the drawings]

[0010] [Figure 1] This is a diagram showing the state in which a windshield for an alcohol stove is being installed. [Diagram 2] This is an oblique view showing the state after the windshield for the alcohol stove has been installed. [Diagram 3] This is a view of the alcohol stove windshield in an unfolded state from the outside. [Figure 4] This is a view of the inside of an unfolded windshield for an alcohol stove. [Diagram 5] This is a view of the inside of a disassembled windshield for an alcohol stove. [Figure 6] This is a view of the outside of an alcohol stove windshield folded vertically. [Figure 7] This is a view of the inside of an alcohol stove windshield folded vertically. [Figure 8] This is a diagram showing the windshield for an alcohol stove after it has been rolled up and placed in the main chamber of the alcohol stove. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The windshield for alcohol stoves of the present invention will be specifically described with reference to the drawings. The configurations described below are merely preferred embodiments, and the technical scope of the present invention is not limited to the configurations described below. The windshield for alcohol stoves of the present invention can be modified as appropriate within the scope of the invention.

[0012] FIG. 1 is a perspective view showing the state in the middle of installing the alcohol stove windshield 20, and FIG. 2 is a perspective view showing the state after the alcohol stove windshield 20 has been installed. When using fire outdoors, such as camping, an alcohol stove 10 as shown in FIG. 1 is used. The alcohol stove 10 is used by pouring alcohol into its main chamber 10a and lighting the alcohol. The alcohol stove windshield 20 of this embodiment is installed in a state surrounding the alcohol stove 10, as shown in FIGS. 1 and 2. This prevents the alcohol stove 10 from being exposed to wind, making it difficult for the fire of the alcohol stove 10 to go out. In addition, as described later, the alcohol stove windshield 20 of this embodiment can also be used as a trivet (a stand for placing an object to be heated).

[0013] 3 and 4 are views showing the alcohol stove windshield 20 in an unfolded state. FIG. 3 shows the outer surface side of the alcohol stove windshield 20, and FIG. 4 shows the inner surface side of the alcohol stove windshield 20. As shown in FIG. 3 and FIG. 4, the alcohol stove windshield 20 of this embodiment is formed of a strip-shaped metal plate 20a. The strip-shaped metal plate 20a is formed of a metal that has a rigidity sufficient to be able to stand on its own and is flexible enough to be bent by hand. By bending this strip-shaped metal plate 20a into a cylindrical shape, it becomes possible to use it as an alcohol stove windshield 20 as shown in FIG. 2.

[0014] 3 and 4, a locking hole 23 is provided at one longitudinal end of the band-shaped metal plate 20a, and a locking protrusion 24 is provided at the other longitudinal end. The band-shaped metal plate 20a can be maintained in a cylindrical shape by bending the band-shaped metal plate 20a into a cylindrical shape, overlapping both longitudinal ends of the band-shaped metal plate 20a, and locking the locking protrusion 24 in the locking hole 23. As described later, the band-shaped metal plate 20a is composed of a lower band-shaped portion 21 and an upper band-shaped portion 22, and one locking hole 23 and one locking protrusion 24 are provided in each of the lower band-shaped portion 21 and the upper band-shaped portion 22.

[0015] FIG. 5 is a view of the alcohol stove windshield 20 in an exploded state as viewed from the inside. As shown in FIG. 5, the belt-shaped metal plate 20a is composed of a lower belt-shaped portion 21 and an upper belt-shaped portion 22 that are separate bodies, and the lower belt-shaped portion 21 and the upper belt-shaped portion 22 are connected together. The belt-shaped metal plate 20a can be folded vertically (folded in half) so that the upper belt-shaped portion 22 overlaps the outer surface side of the lower belt-shaped portion 21, thereby forming the configuration shown in FIG. 6 and FIG. 7. FIG. 6 is a view of the alcohol stove windshield 20 folded vertically as viewed from the outside, and FIG. 7 is a view of the alcohol stove windshield 20 folded vertically as viewed from the inside. By folding the alcohol stove windshield 20 vertically, the height of the alcohol stove windshield 20 is reduced to approximately half, and the height is reduced to a height that can be stored in the main chamber 10a of the alcohol stove 10.

[0016] The strip-shaped metal plate 20a can be folded vertically as described above, and then rolled longitudinally (rolled smaller to have a smaller diameter than the cylindrical shape shown in FIG. 1) to form the shape shown in FIG. 8 (hereinafter, sometimes referred to as a "small roll shape"). By rolling it into a small roll, the alcohol stove windshield 20 can be accommodated in the main chamber 10a of the alcohol stove 10. FIG. 8 is a perspective view showing the alcohol stove windshield 20 after rolling and accommodated in the main chamber 10a of the alcohol stove 10. The alcohol stove windshield 20 accommodated in the main chamber 10a expands due to the elasticity of the strip-shaped metal plate 20a, and is held by the inner wall of the main chamber 10a of the alcohol stove 10. As a result, the alcohol stove windshield 20 accommodated in the main chamber 10a cannot come out of the main chamber 10a unless it is pulled out.

[0017] As described above, the alcohol stove windshield 20 of this embodiment can be stored in the main chamber 10a of the alcohol stove 10, and can be stored and transported together with the alcohol stove 10. Therefore, the alcohol stove windshield 20 of this embodiment is unlikely to be lost or forgotten to be taken with you.

[0018] The alcohol stove windshield 20 of this embodiment will now be described in more detail.

[0019] The manner of connection between the lower belt-like portion 21 and the upper belt-like portion 22 is not particularly limited as long as they can be connected in a state in which they can be folded in half in the vertical direction. The lower belt-like portion 21 and the upper belt-like portion 22 can also be connected via a hinge. However, if a hinge is attached to the lower belt-like portion 21 or the upper belt-like portion 22, when the belt-like metal plate 20a is to be curved, the portion to which the hinge is attached does not bend, and the belt-like metal plate 20a is difficult to be formed into a neat cylindrical shape or a small roll shape. In addition, if a hinge is provided, the manufacturing cost of the alcohol stove windshield 20 increases. For this reason, the alcohol stove windshield 20 of this embodiment employs a structure in which the lower belt-like portion 21 and the upper belt-like portion 22 are directly connected without using a hinge. Specifically, as shown in FIG. 5, a protrusion 22a is provided on the lower edge of the upper belt-like portion 22, while an opening 21a is provided on the upper edge of the lower belt-like portion 21, and the upper belt-like portion 22 and the lower belt-like portion 21 are connected by inserting the protrusion 22a into the opening 21a. This allows the connecting portion between the upper belt-like portion 22 and the lower belt-like portion 21 to be flat and bendable. Therefore, the alcohol stove windshield 20 can be made into a neat cylindrical shape or a small roll shape. The opening 21a of the lower belt-like portion 21 and the protrusion 22a of the upper belt-like portion 22 can be easily formed, for example, by punching out the lower belt-like portion 21 and the upper belt-like portion 22 using a mold, or by cutting out the lower belt-like portion 21 and the upper belt-like portion 22 by laser processing.

[0020] The opening 21a provided in the lower belt-like portion 21 and the protrusion 22a provided in the upper belt-like portion 22 are not particularly limited in shape, as long as they can be formed in various shapes that allow the lower belt-like portion 21 and the upper belt-like portion 22 to be connected in a folded state. In the alcohol stove windshield 20 of this embodiment, as shown in FIG. 5, the opening 21a is shaped such that a part of a rectangular hole is blocked by a semicircular protrusion 21b. On the other hand, the protrusion 22a is shaped to have a narrow portion 22a1 on the base end side and a wide portion 22a2 on the tip end side. By inserting the protrusion 22a into the opening 21a from the outer surface side of the lower belt-like portion 21, the protrusion 22a is fitted into the opening 21a, and the lower belt-like portion 21 and the upper belt-like portion 22 are connected. In the protrusion 22a, the width of the narrow portion 22a1 is smaller than the width of the opening 21a, but the width of the wide portion 22a2 is larger than the width of the opening 21a. Therefore, when the protrusion 22a is inserted into the opening 21a, the wide portion 22a2 functions as a retainer. In addition, by providing the above-mentioned convex portion 21b, the protrusion 22a inserted into the opening 21a is held down from the outer surface side of the lower belt-like portion 21 by the convex portion 21b. Therefore, the protrusion 22a is less likely to come out to the outer surface side of the lower belt-like portion 21. Therefore, the lower belt-like portion 21 and the upper belt-like portion 22 can be connected in a state in which they are less likely to come out. When the lower belt-like portion 21 and the upper belt-like portion 22 are folded in half, the apex of the convex portion 21b, the upper edge of the opening 21a, etc. become the fulcrum, and the protrusion 22a of the upper belt-like portion 22 rotates 180° outward, and the upper belt-like portion 22 is turned upside down. In this way, the connecting portion between the lower belt-like portion 21 and the upper belt-like portion 22 can also function as a hinge.

[0021] In the above, the case where the protrusion 22a is inserted into the opening 21a from the outer surface side of the lower belt-like portion 21 has been described, but the protrusion 22a may be inserted into the opening 21a from the inner surface side of the lower belt-like portion 21. In this case, the side that presses the protrusion 22a is opposite to the outer surface side of the convex portion 21b (the convex portion 21b presses the inner surface side of the lower belt-like portion 21), and the rotation direction of the upper belt-like portion 22 when the lower belt-like portion 21 and the upper belt-like portion 22 are folded in half is also opposite (the upper belt-like portion 22 rotates 180° inward).

[0022] The lower belt portion 21 and the upper belt portion 22 may be connected at least at one point. However, if they are connected at only one point, the upper belt portion 22 will wobble relative to the lower belt portion 21, and the posture of the upper belt portion 22 will be difficult to stabilize. For this reason, the lower belt portion 21 and the upper belt portion 22 are preferably connected at two or more points, and more preferably connected at three or more points. However, if there are too many connection points between the lower belt portion 21 and the upper belt portion 22, it will be difficult to connect them. In addition, even though the connection portion between the lower belt portion 21 and the upper belt portion 22 is flat, it has a thickness equivalent to two metal plates. If such points increase, it will be difficult to bend the belt-shaped metal plate 20a into a cylindrical shape or a small roll. For this reason, it is preferable to limit the number of connection points between the lower belt portion 21 and the upper belt portion 22 to 15 or less, and more preferably to 10 or less. In the alcohol stove windshield 20 of this embodiment, the lower belt-like portion 21 and the upper belt-like portion 22 are connected at eight locations.

[0023] As shown in FIG. 5, the openings 21a and the protrusions 22a are provided at opposing positions on the upper edge of the lower belt-like portion 21 and the lower edge of the upper belt-like portion 22, respectively. When the lower belt-like portion 21 and the upper belt-like portion 22 are connected at multiple positions as described above, the openings 21a and the protrusions 22a constituting each connection portion are provided at opposing positions. In this case, the arrangement pitch of the connection points is not particularly limited, but is usually 1 to 20 cm, and preferably 2 to 10 cm. In the alcohol stove windshield 20 of this embodiment, a total of eight sets of openings 21a and protrusions 22a are arranged at 3 cm intervals.

[0024] In the above, an embodiment has been described in which the opening 21a is provided on the upper edge of the lower belt-like portion 21 and the protrusion 22a is provided on the lower edge of the upper belt-like portion 22, but it is also possible to provide the protrusion 22a on the upper edge of the lower belt-like portion 21 and the opening 21a on the lower edge of the upper belt-like portion 22. This also makes it possible to connect the lower belt-like portion 21 and the upper belt-like portion 22 in a state in which they can be folded in half.

[0025] The shape of the upper edge of the upper belt-like portion 22 is not particularly limited. For example, the upper edge of the upper belt-like portion 22 may be straight. However, if the upper edge is straight, when the alcohol stove windshield 20 is used as a trivet (when an object to be heated is placed on the upper side of the upper belt-like portion 22), the upper edge of the upper belt-like portion 22 is in contact with the bottom surface of the object to be heated over the entire section. This makes it difficult for air to circulate inside and outside the alcohol stove windshield 20, which may hinder the combustion of the alcohol stove 10. Therefore, in the alcohol stove windshield 20 of this embodiment, as shown in FIG. 5, the upper edge of the upper belt-like portion 22 is serrated. That is, triangular protrusions are repeatedly formed along the upper edge of the upper belt-like portion 22. This makes it possible for air to circulate through the gaps between adjacent triangular protrusions (parts shown by hatching in FIG. 5) even if an object to be heated is placed on the upper side of the upper belt-like portion 22. Another benefit is that you can see the flame of the Alcohol Stove 10 through the gap.

[0026] The shape of the lower edge of the lower belt-like portion 21 is not particularly limited. However, if the lower edge of the lower belt-like portion 21 is serrated like the upper edge of the upper belt-like portion 22, wind will easily enter the inside of the alcohol stove windshield 20, and the flame of the alcohol stove 10 may go out. However, if the lower edge of the lower belt-like portion 21 is straight, air circulation inside the alcohol stove 10 will be difficult. For this reason, in the alcohol stove windshield 20 of this embodiment, as shown in FIG. 5, the lower edge of the lower belt-like portion 21 is straight in almost the entire section, but both end sections of the lower edge are inclined. This allows ventilation openings (parts shown by diagonal hatching in FIG. 5) to be formed only at both end portions of the lower belt-like portion 21 when the belt-like metal plate 20a is cylindrical.

[0027] In addition, in the alcohol stove windshield 20 of this embodiment, a recess 22b is provided at the apex of each triangular protrusion at the upper edge of the upper belt-shaped portion 22. This makes it possible to form a net-like structure at the upper opening end of the alcohol stove windshield 20 by using multiple metal wires (not shown) prepared separately. That is, as shown in FIG. 2, when the alcohol stove windshield 20 is cylindrical, the recesses 22b are arranged in an annular shape (see points P1 to P8 in the figure). However, for example, the metal wires can be arranged in a mesh shape by fitting both ends of a first metal wire into the recesses 22b at points P1 and P6 to span the metal wire between points P1 and P6, fitting both ends of a second metal wire into the recesses 22b at points P2 and P5 to span the metal wire between points P2 and P5, fitting both ends of a third metal wire into the recesses 22b at points P3 and P8 to span the metal wire between points P3 and P8, and fitting both ends of a fourth metal wire into the recesses 22b at points P4 and P7 to span the metal wire between points P4 and P7. By increasing the number of metal wires, a finer mesh structure can be formed, making it possible to place even small objects to be heated on the upper side of the alcohol stove windshield 20.

[0028] As described above, in the alcohol stove windshield 20 of this embodiment, the lower belt-like portion 21 and the upper belt-like portion 22 have a belt-like (long, narrow rectangular) metal plate with the locking protrusions 24 and triangular protrusions. Therefore, the lower belt-like portion 21 and the upper belt-like portion 22 have corners at various locations, including the four corners. In this regard, each corner is formed into a rounded shape, making the alcohol stove windshield 20 safe and easy to handle.

[0029] Examples of metals that form the belt-shaped metal plate 20a (the lower belt-shaped portion 21 and the upper belt-shaped portion 22) include aluminum, stainless steel, iron, etc. In the alcohol stove windshield 20 of this embodiment, the belt-shaped metal plate 20a is formed of aluminum. The surface of the belt-shaped metal plate 20a may be subjected to an anti-rust treatment or the like.

[0030] The thickness of the strip metal plate 20a (the lower strip portion 21 and the upper strip portion 22) is not particularly limited, but if it is too thick, the strip metal plate 20a cannot be curved into a cylindrical shape. For this reason, the thickness of the strip metal plate 20a is usually set to 0.05 mm or more. The thickness of the strip metal plate 20a is preferably set to 0.1 mm or more, and more preferably set to 0.2 mm or more. However, if the strip metal plate 20a is made too thin, the strength of the strip metal plate may decrease. For this reason, the thickness of the strip metal plate 20a is preferably set to 1 mm or less. The thickness of the strip metal plate 20a is more preferably set to 0.8 mm or less, and even more preferably set to 0.5 mm or less. In the alcohol stove windshield 20 of this embodiment, the thickness of the strip metal plate 20a is set to about 0.3 mm.

[0031] The length (length along the longitudinal direction) of the strip metal plate 20a (the lower strip portion 21 and the upper strip portion 22) is made larger than the outer periphery of the alcohol stove 10. In this regard, the outer periphery of an outdoor alcohol stove generally available on the market is approximately 23 to 24 cm. Therefore, if the length of the strip metal plate 20a is 24 cm or more, when the alcohol stove 10 is surrounded by the cylindrically curved alcohol stove windshield 20, a gap can be secured between the inner surface of the alcohol stove windshield 20 and the outer periphery of the alcohol stove 10. The length of the strip metal plate 20a is preferably 25 cm or more, more preferably 27 cm or more. The strip metal plate 20a can be made even longer. This can ensure the above-mentioned gap of about 0.5 to 1 cm. However, if the strip metal plate 20a is made too long, the strip metal plate 20a must be wound many times when the alcohol stove windshield 20 is wound into a small roll. For this reason, the length of the belt-shaped metal plate 20a is preferably 50 cm or less. The length of the belt-shaped metal plate 20a is more preferably 45 cm or less, and even more preferably 40 cm or less. In the alcohol stove windshield 20 of this embodiment, the length of the belt-shaped metal plate 20a is about 30 cm.

[0032] The height (vertical width) of the belt-shaped metal plate 20a (the lower belt-shaped portion 21 and the upper belt-shaped portion 22) is made larger than the height of the alcohol stove 10. However, the alcohol stove windshield 20 may be used as a trivet. If the belt-shaped metal plate 20a is only slightly higher than the alcohol stove 10, when an object to be heated is placed on the upper side of the alcohol stove windshield 20, the distance between the alcohol stove 10 and the object to be heated becomes too close, and the space for the flame of the alcohol stove 10 to burn cannot be secured. For this reason, it is preferable that the belt-shaped metal plate 20a is somewhat higher (for example, 1 cm or more) than the alcohol stove 10. In this regard, the height of outdoor alcohol stoves generally available on the market is approximately 4 to 5 cm. Therefore, it is preferable that the height of the belt-shaped metal plate 20a is 5 cm or more, and more preferably 6 cm or more. However, if the belt-shaped metal plate 20a is made too high, when an object to be heated is placed on the upper side of the alcohol stove windshield 20, the distance between the alcohol stove 10 and the object to be heated becomes too great, and the flame of the alcohol stove 10 cannot reach the object to be heated. For this reason, the height of the belt-shaped metal plate 20a is preferably 15 cm or less. It is more preferable that the height of the belt-shaped metal plate 20a is 10 cm or less. In the alcohol stove windshield of this embodiment, the height of the belt-shaped metal plate 20a is about 7 cm.

[0033] Incidentally, when not in use, the alcohol stove windshield 20 is stored in the main chamber 10a of the alcohol stove 10 in a rolled-up state as shown in Fig. 8. When the alcohol stove windshield 20 is pulled out of the main chamber 10a to be used again, the elasticity of the metal strip 20a may cause the metal strip 20a to open forcefully (return from the rolled-up state shown in Fig. 8 to the state shown in Figs. 6 and 7). For this reason, the alcohol stove windshield 20 may be provided with a structure that prevents the metal strip 20a from opening when rolled up. For example, the overlapping portion of the rolled-up metal strip 20a may be clipped with a clip to prevent the metal strip 20a from opening. [Explanation of symbols]

[0034] 10. Alcohol stove 10a Main room 20 Windshield for alcohol stoves 20a Metal strip 21 Lower Band 21a opening 21b Convex part 22 Upper Band 22a Protrusion 22a1 narrow part 22a2 wide section 22b Recess 23 Locking hole 24 Locking protrusion

Claims

1. The cylindrical member is formed of a metal strip that can be bent into a cylindrical shape. It is installed in a state where it surrounds the alcohol stove. A windshield for an alcohol stove, comprising: A lower belt portion that forms a lower edge side of the belt-shaped metal plate; an upper belt-shaped portion forming an upper edge side of the belt-shaped metal plate; is considered a separate entity, The lower belt portion and the upper belt portion are connected in a foldable state so that the upper belt portion overlaps the lower belt portion. A windshield for an alcohol stove.

2. The windshield for an alcohol stove according to claim 1, an alcohol stove having a main chamber for pouring alcohol; An alcohol stove set comprising: Fold the alcohol stove windshield so that the upper band overlaps the lower band of the alcohol stove windshield, then By rolling up the alcohol stove windshield in the longitudinal direction, The windshield for the alcohol stove can now be stored in the main compartment of the alcohol stove. Alcohol stove set.

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