WO2022113870A1 - Pare-flamme pour flamme vive - Google Patents

Pare-flamme pour flamme vive Download PDF

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Publication number
WO2022113870A1
WO2022113870A1 PCT/JP2021/042397 JP2021042397W WO2022113870A1 WO 2022113870 A1 WO2022113870 A1 WO 2022113870A1 JP 2021042397 W JP2021042397 W JP 2021042397W WO 2022113870 A1 WO2022113870 A1 WO 2022113870A1
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WO
WIPO (PCT)
Prior art keywords
bonfire
windshield
cloth
height
opening
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PCT/JP2021/042397
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English (en)
Japanese (ja)
Inventor
貴旭 桐山
義哲 権
祐司 ▲高▼橋
陽 濱野
Original Assignee
東洋紡株式会社
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Publication of WO2022113870A1 publication Critical patent/WO2022113870A1/fr

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/10—Fire-proof curtains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V37/00—Details of lighting devices employing combustion as light source, not otherwise provided for
    • F21V37/02—Special adaptation for protection against draughts ; Draft controllers

Definitions

  • This disclosure relates to a bonfire windshield used outdoors.
  • Patent Document 1 a lightweight and inexpensive assembly-type windshield device has existed, but it has not been applicable to a bonfire with high thermal power.
  • a wood stove or the like can achieve the above purpose, but it is heavy and difficult to install and transport.
  • the purpose of this disclosure is to provide a bonfire windshield that is lightweight and easy to set up, yet enables safe and comfortable bonfire enjoyment.
  • the bonfire windshield of the present disclosure is a bonfire windshield having a conical or polygonal weight-shaped cloth structure having an open bottom surface and being composed of cloth, wherein the cloth structure is the cloth structure.
  • 1 or 2 slits from the bottom opening of the fabric structure to a height of 1/4 to 9/10 of the height of the fabric structure, and at a position different from the slits, from the bottom surface of the fabric structure to the above.
  • the fabric structure has an opening region ranging from 1/3 to 2/3 in height to 3/4 to 9/10 in height with respect to the height of the fabric structure, and the fabric structure is highly flame-retardant. It is a material.
  • the second virtual straight line formed when the first virtual straight line connecting the midpoint of the intersection of the slit and the bottom of the cloth structure and the apex of the cloth structure is projected onto the bottom surface.
  • the angle between the opening center of the opening region and the fourth virtual straight line formed when the third virtual straight line connecting the apex is projected onto the bottom surface is between 30 degrees and 180 degrees.
  • the second height from the bottom opening to the lower end of the opening region is [first height ⁇ 0.9] with respect to the first height of the slit from the bottom opening. Satisfy the relationship of ⁇ second height].
  • the opening area of the opening region is [total side area x 0.02 ⁇ opening area ⁇ total side area x 0.] with respect to the total side area of all the side areas of the fabric structure. 3] is satisfied.
  • the fabric is made of organic fibers.
  • the above-mentioned organic fiber is composed of one or more kinds of fibers selected from polyphenylene sulfide fiber, PEEK fiber, meta-aramid fiber, para-aramid fiber, polybenzol fiber, and flame-resistant acrylic fiber.
  • the above-mentioned organic fiber is a polybenzoxazole (PBO) fiber.
  • FIG. It is a perspective view from the front side of the bonfire windshield of Embodiment 1.
  • FIG. It is a perspective view from the back side of the bonfire windshield of Embodiment 1.
  • FIG. It is a top view of the windshield for a bonfire of Embodiment 1.
  • FIG. It is a perspective view of another form from the front side of the bonfire windshield of Embodiment 1.
  • FIG. It is a perspective view of another form from the front side of the bonfire windshield of Embodiment 1.
  • FIG. It is a figure which shows the flame retardant property of Zylon (registered trademark).
  • Zylon registered trademark
  • FIG. It is a perspective view which shows the use form of the bonfire windshield of Embodiment 1.
  • FIG. It is a perspective view which shows the other use form of the bonfire windshield of Embodiment 1.
  • FIG. It is a perspective view from the front side of the bonfire windshield of Embodiment 2.
  • height means the length along a vertical line extending from the plane when the bottom opening BO described later is a plane, and the plane is a horizontal plane. If so, it means the length along the vertical line.
  • FIGS. 1 to 5 The configuration of the bonfire windshield 1 of the present embodiment will be described with reference to FIGS. 1 to 5.
  • 1 is a perspective view from the front side of the bonfire windshield 1
  • FIG. 2 is a perspective view from the back side of the bonfire windshield 1
  • FIG. 3 is a plan view of the bonfire windshield 1
  • FIGS. 4 and 5 are.
  • It is a perspective view of another form from the front side of the bonfire windshield 1.
  • the bonfire windshield 1 is a bonfire windshield having a polygonal pyramid-shaped cloth structure having an open bottom surface and made of cloth, and in the present embodiment, it has a quadrangular pyramid shape as a whole.
  • the bonfire windshield 1 includes a first side cloth 101, a second side cloth 102, a third side cloth 103, and a fourth side cloth 104, which have a triangular shape, respectively, so as to form a square cone cloth structure. Have been placed.
  • the bottom surface of the bonfire windshield 1 has a rectangular bottom opening BO composed of a first side surface cloth 101, a second side surface cloth 102, a third side surface cloth 103, and a fourth side surface cloth 104.
  • the first opening region 106 is provided in the region from the middle to the bottom surface.
  • the first opening region 106 is a first slit S1 provided between the first side surface cloth 101 and the second side surface cloth 102, and a second slit provided between the fourth side surface cloth 104 and the first side surface cloth 101. It is configured by opening the front door 105 which is a part of the first side surface cloth 101 separated by S2.
  • the first slit S1 and the second slit S2 may be provided so as to reach a height of 1/4 to 9/10 with respect to the height (H) of the quadrangular pyramid fabric structure from the bottom opening BO. ..
  • the first slit S1 and the second slit S2 are provided up to a height of about 1 ⁇ 2 of the height (H) of the quadrangular pyramid cloth structure.
  • the second opening region 107 is located above the middle of the third side cloth 103 arranged to face the first side cloth 101. Is provided.
  • the first side surface cloth 101, the second side surface cloth 102, the third side surface cloth 103, and the fourth side surface cloth 104 are highly flame-retardant materials.
  • the specific material used for each side fabric will be described later.
  • the first side surface fabric 101 has a triangular shape reaching the bottom surface, and the region from the middle to the bottom surface is the second side surface fabric 102 and the fourth side surface located on both sides by the first slit S1 and the second slit S2 described above. It constitutes a front door 105 that is not fixed to the cloth 104 and opens and closes the first opening region 106. In the state shown in FIG. 1, the front door 105 is fixed to the first side surface cloth 101 by using the belt member 110 in a state of being rolled upward. In this state, the first opening region 106 is fully open.
  • the fixing method of the front door 105 is not limited to the fixing by the belt member 110, and it is possible to adopt a known fixing method such as a button, a fastener, and a hook hook. Further, although the front door 105 is fixed by being rolled up, the front door 105 may be turned upside down as it is without being rolled up, and the lower end may be fixed in the vicinity of the top of the bonfire windshield 1.
  • the side on which the first side surface cloth 101 provided with the first opening region 106 is located is the front side and faces the user.
  • the angle ⁇ 1 formed when the third virtual straight line L20 connecting with T1 is projected onto the bottom surface is between 30 degrees and 180 degrees.
  • the second opening region 107 is 3/4 to 9 / from a height of 1/3 to 2/3 with respect to the height (H) of the quadrangular pyramid fabric structure from the bottom opening BO.
  • An opening is provided in a region up to a height of 10.
  • the second opening region is located between the height (H2) of about 2/3 and the height (H3) of about 9/10 with respect to the height (H) of the quadrangular pyramid fabric structure. 107 is provided.
  • the opening area (OP1) of the second opening region 107 is set to [total side area (TA) ⁇ 0.02 ⁇ opening area (OP1) with respect to the total side area (TA) of all the side areas of the fabric structure. ) It is preferable to satisfy the condition of ⁇ total side area (TA) x 0.3].
  • the first opening region 106 is on the lower side and the second opening region 107 is on the upper side. It will form a flow passage.
  • the four side cloths are adjacent to each other at a position (distance D1) at a predetermined distance from the top. Therefore, a small square thrust C1 is configured on the top of the bonfire windshield 1.
  • the top of the quadruped 1000 see FIG. 9
  • the square thrust shape of the bonfire windshield 1 can be stabilized.
  • An annular member 108 for hanging is provided at the apex of the quadrangular pyramid of the bonfire windshield 1.
  • the annular member 108 is used when installing the bonfire windshield 1, but it is not necessarily limited to the annular member, and various known members can be used.
  • Reinforcing holes 109 reinforced by eyelets or the like are provided at the corners of the lower ends of the second side surface fabric 102, the third side surface fabric 103, and the fourth side surface fabric 104.
  • the reinforcing hole 109 reinforced by the eyelet or the like is also used when installing the bonfire windshield 1, but the reinforcing hole 109 reinforced by the eyelet or the like is not necessarily an essential configuration, and various known members. Can be used.
  • the vertical height H from the bottom opening BO of the bonfire windshield 1 shown in FIG. 1 is about 100 cm to about 150 cm, preferably about 120 cm.
  • the length W of one side of the bottom opening BO of the bonfire windshield 1 shown in FIG. 3 is 50 cm to 70 cm, preferably about 60 cm.
  • the front door 105 may be not only rolled and fixed at the highest position (L1 in the figure), but may also be fixed in the intermediate region (L2 in the figure). ..
  • the vertical height of L1 is about 60 cm, and that of L2 is about 30 cm.
  • the front door 105 can also be used to close the first opening region 106. By fixing the front door 105 to an arbitrary position, the opening area of the first opening region 106 can be adjusted.
  • the material of the side cloth having a high flame retardancy used for the first side cloth 101, the second side cloth 102, the third side cloth 103, and the fourth side cloth 104 will be described.
  • the material of the side fabric used in this embodiment is polybenzol fiber (PBO fiber) (trade name "Zylon (registered trademark)").
  • Zylon® fiber exhibits extremely high flame retardancy.
  • the combustion test based on JIS L1091 (A-vertical method) also shows a very small carbonization length and remaining dust time.
  • Polybenzol fiber refers to a fiber made of a polybenzazole polymer
  • polybenzazole hereinafter, also referred to as PBZ
  • PBO polybenzoxazole
  • PBT polybenzothiazole
  • PBI polybenzimidazole
  • PBO refers to a polymer containing an oxazole ring bonded to an aromatic group, and the aromatic group does not necessarily have to be a benzene ring, but may be a biphenylene group, a naphthylene group, or the like. Furthermore, PBO is not only a homopolymer of poly (p-phenylene benzobisoxazole), but also a copolymer in which a part of the phenylene group of poly (p-phenylene benzobisoxazole) is replaced with a heterocycle such as a pyridine ring, and aromatics. Polymers consisting of a plurality of units of oxazole rings bonded to a group are widely included.
  • PBT and PBI also applies to PBT and PBI. Also included are mixtures of two or more of PBO, PBT and PBI, two or more block or random copolymers of PBO, PBT and PBI and mixtures, copolymers, block polymers of these polybenzazole polymers. ..
  • the structural unit contained in the PBZ polymer is preferably selected from a lyotropic liquid crystal polymer that forms a liquid crystal at a specific concentration.
  • the polymer is composed of the monomer units represented by the following structural formulas (a) to (h), and preferably is essentially composed of the monomer units selected from the structural formulas (a) to (d). Is. Further, these monomer units may partially contain a monomer unit having a substituent such as an alkyl group or a halogen group.
  • Suitable solvents for forming the polymer dope include cresol and non-oxidizing acids capable of dissolving the polymer.
  • suitable acid solvents include polyphosphoric acid, methanesulfonic acid and high concentrations of sulfuric acid or mixtures thereof. More suitable solvents are polyphosphoric acid and methanesulfonic acid. The most suitable solvent is polyphosphoric acid.
  • the polymer concentration in the dope is preferably at least about 7% by mass, more preferably at least 10% by mass, and particularly preferably at least 14% by mass.
  • the maximum concentration is limited by practical handling, such as polymer solubility and dope viscosity. Due to these limiting factors, the polymer concentration usually does not exceed 20% by weight.
  • suitable polymers or copolymers and dope are synthesized by known methods. For example, Wolfe et al., US Pat. No. 4,533,693 (1985.8.6), Sibert et al., US Pat. No. 4,772,678 (1988.9.22), Harris, US Pat. No. 4,847,350 (July 11, 1989) or Gregory et al., US Pat. No. 5,089,591 (1992.2.18).
  • suitable monomers are temperatureed in a non-oxidizing, dehydrating acid solution in a non-oxidizing atmosphere at high speed stirring and high shear conditions at a stepwise or constant heating rate from about 60 ° C to 230 ° C. You can make it react by raising it.
  • the spun yarn requires a draw zone length of sufficient length to obtain a sufficient draw ratio (SDR), and is rectified at a relatively high temperature (above the dope solidification temperature and below the spinning temperature). It is desirable that the temperature is uniformly cooled by the cooling air.
  • the length (L) of the draw zone needs to be long enough to complete solidification in a non-coagulable gas, and is determined by the single-hole discharge amount (Q).
  • the draw zone extraction stress needs to be 1.8 g / dtex or more in terms of polymer (assuming that stress is applied only to the polymer).
  • the threads stretched in the draw zone are then guided to a medium bath for solvent extraction and thread coagulation.
  • a medium bath for solvent extraction and thread coagulation As the extraction (coagulation) medium used in the extraction (coagulation) bath, a liquid having a hydroxyl group in the molecule, that is, water, methanol, ethanol, ethylene glycol and a solution prepared by mixing these with phosphoric acid is preferable and more preferable. Is water or an aqueous solution of phosphoric acid.
  • the phosphoric acid concentration in the case of an aqueous phosphoric acid solution is preferably 5% by mass or more and 60% by mass or less, more preferably 10% by mass or more and 50% by mass or less, and most preferably 20% by mass or more and 40% by mass or less.
  • the region preferable for the solidification temperature is 5 ° C. or higher and 60 ° C. or lower, more preferably 10 ° C. or higher and 50 ° C. or lower, and most preferably 15 ° C. or higher and 40 ° C. or lower.
  • the phosphoric acid contained in the fibers After passing through the first extraction (coagulation) bath, it is further neutralized with an aqueous solution of sodium hydroxide or the like, and the phosphoric acid contained in the fibers (threads) is extracted through a washing step such as the second extraction bath. Finally, in the extraction bath, the phosphoric acid contained in the yarn is extracted so as to be 1.0% by mass or less, preferably 0.5% by mass or less.
  • the liquid used as the extraction medium in the present disclosure is not particularly limited, but water, methanol, ethanol, acetone, ethylene glycol, etc., which are substantially incompatible with polybenzazole, are preferable, and an aqueous phosphoric acid solution or water is preferable. More preferred.
  • the extraction (coagulation) bath may be separated in multiple stages, the concentration of the phosphoric acid aqueous solution may be gradually reduced, and finally washed with water. By these extraction treatments, the phosphorus atom content in the fiber is usually reduced to about 10,000 to 2000 ppm.
  • the moisture in the fiber is dried to 2% or less through the drying process.
  • the drying method select a general roller drying method or a method of leaving it in the oven.
  • heat treatment may be performed at 400 ° C. or higher under tension, if necessary.
  • FIG. 7 is a diagram showing the results of comparing the texture characteristics of the woven fabric used for the bonfire windshield 1 with other woven fabrics.
  • the "weight (absolute dry mass)" of the fabric used in this embodiment is preferably 100 to 1200 g / m 2 , and more preferably 150 to 800 g / m 2 . In this embodiment, 320 g / m 2 was used.
  • the "thickness" of the fabric used in this embodiment is preferably 0.1 to 3.5 mm, more preferably 0.2 to 2.5 mm. In this embodiment, 0.5 mm was used.
  • the method for measuring "thickness" is based on JIS L1096.
  • a spun yarn woven fabric was used instead of a filament woven fabric.
  • Zylon (registered trademark) woven fabrics include filament woven fabrics and spun yarn woven fabrics, but spun yarn woven fabrics were used because they "soften the texture” and "easily give thickness even with the same texture”. As a result, it is possible to suppress ventilation while maintaining the texture.
  • glass fiber As shown in FIG. 7, "glass fiber”, “silicon coated glass fiber” and “polyester woven fabric (work clothes)” were used as samples to be compared with Zylon (registered trademark) cloth.
  • the "polyester woven fabric (work clothes)” is a blend of 65% PET and 35% cotton.
  • the "average coefficient of friction” was measured using the KES-SE friction feeling tester of Kato Tech Co., Ltd. under the following conditions. Cut the sample to a length of 5 cm or more and a width of 5 cm or more, measure the vertical direction and the horizontal direction 5 times each with standard sensitivity, standard friction element (1 mm square piano wire sensor), load 50 gf, and test speed 1 mm / cm. The average value in the horizontal direction was calculated.
  • Thermal conductivity (W / mk)" was measured as follows using KES-FB7 and Thermolab II of Katou Tech Co., Ltd. Sample under the measurement conditions of ambient environment 20 ° C. 65% RH, hot plate temperature (BT-Box) 35 ° C., sample table (thermocool) temperature 20 ° C. ( ⁇ T: 15 ° C.), contact load 6 g / cm 2 (standard). Was placed on a thermocool, a thermolab hot plate was placed on the sample, and the power consumption of the thermolab hot plate after 10 minutes was measured three times, and the average value was calculated. The thickness of the sample required for calculating the thermal conductivity was measured with a load of 6 g / cm 2 (calculated by BT-Box weight).
  • the bonfire When used as a windshield for bonfire, the bonfire is concentrated and becomes high heat, and in order to prevent the surface temperature from reaching the thermal decomposition temperature or the ignition point, it is desirable to diffuse the heat quickly, so thermal conductivity. It is preferable that (W / mk) is high and heat transfer is fast.
  • Glass fiber is "tingling" when touched, so coating is essential to improve the feel.
  • silicon coating is applied to a heavy glass fiber having a specific gravity of more than 2, the basis weight becomes high and the weight of the cloth becomes heavy. Furthermore, coating rigid glass fiber gives it a firm texture.
  • the flame retardancy of each fiber will be described with reference to FIG.
  • the LOI value is the limit oxygen index, and can be measured by the combustibility test method of a polymer material according to the JISK7201-1995 oxygen index method. The larger the LOI value, the better the flame retardancy. JISL1091 method Judgment was made according to the combustion test (B method) of textile products.
  • the PBO fiber has a large LOI value and is excellent in flame retardancy as compared with other fibers.
  • PBO fiber is used as a preferable cloth having high flame retardancy.
  • one or more fibers selected from polyphenylene sulfide fibers, PEEK fibers, meta-aramid fibers, para-aramid fibers, PBO fibers, and flame-resistant acrylic fibers composed of organic fibers may be used.
  • FIGS. 9 and 10 are perspective views showing a usage pattern of the bonfire windshield 1.
  • a quadruped 1000 is arranged inside the bonfire windshield 1, and the bonfire windshield 1 is covered with the quadruped 1000.
  • the second side cloth 102, the third side cloth 103, and the fourth side cloth 104 are provided by the rope N1 using the reinforcing holes 109 provided at the lower ends of the second side cloth 102, the third side cloth 103, and the fourth side cloth 104.
  • the lower end of is fixed to the quadruped 1000.
  • a bonfire stand 200 is arranged inside the bonfire windshield 1.
  • the bonfire windshield 1 shown in FIG. 10 is used by suspending the bonfire windshield 1 from the top of the stand 2000 by using an annular member 108 for hanging.
  • a rope N1 is stretched between the reinforcing holes 109 provided at the lower ends of the second side cloth 102, the third side cloth 103, and the fourth side cloth 104 and the peg P1 fixed to the ground.
  • a bonfire stand 200 is arranged inside the bonfire windshield 1.
  • each side cloth used for the bonfire windshield 1 is made of a highly flame-retardant material
  • the bonfire stand 200 is arranged inside the bonfire windshield 1.
  • the air flow passages provided on the front side and the rear side of the bonfire windshield 1 allow smoke K generated from the bonfire to escape to the outside from the second opening region 107 provided on the upper part of the bonfire windshield 1.
  • the bonfire stand 200 can be surrounded by the bonfire windshield 1, it is highly effective as a windshield. Further, even if sparks and smoke fly from the bonfire stand 200, since it is covered with the bonfire windshield 1, it is possible to suppress the diffusion of sparks and smoke to the outside.
  • the bonfire stand 200 can be arranged inside the bonfire windshield 1 to perform the bonfire, it is possible to comfortably enjoy the fluctuation of the flame due to the bonfire like a fireplace. Further, since the side cloth can be expected to have an effect of reflecting heat, the region on the front side of the bonfire windshield 1 can be directionally warmed.
  • the bonfire When using at night, the bonfire can be seen passing through the side cloth, so that the bonfire windshield 1 has the role of a lantern, and it can be expected to give comfort to the user.
  • the bonfire windshield 1 is made of cloth, it can be folded when not in use and is suitable for light weight and compactness. Furthermore, since it can be washed, it can always be used hygienically.
  • the bonfire windshield 1 As described above, according to the bonfire windshield 1 according to the present embodiment, it is possible to enjoy the bonfire comfortably.
  • FIG. 11 is a perspective view from the front side of the bonfire windshield 1A.
  • the basic configuration of the bonfire windshield 1A of the present embodiment is the same as that of the bonfire windshield 1 of the first embodiment. The difference is that the bonfire windshield 1A is not provided with the front door 105 for opening and closing the first opening region 106, and the first opening region 106 is always open.
  • FIG. 12 is a rear view of the bonfire windshield 1A.
  • the basic configuration of the bonfire windshield 1B of the present embodiment is the same as that of the bonfire windshield 1 of the first embodiment. The difference is that the bonfire windshield 1B is provided with a rear door 120 for opening and closing the second opening region 107. After this, the opening area of the second opening region 107 can be adjusted by the rear door 120.
  • FIG. 13 is a perspective view from the back side of the bonfire windshield 1A.
  • the basic configuration of the bonfire windshield 1C of the present embodiment is the same as that of the bonfire windshield 1 of the first embodiment.
  • the difference is that the bonfire windshield 1C is provided with a highly rigid core material 117 at the upper end portion 103v of the third side surface cloth 103 constituting the second opening region 107. This is because when the upper end portion 103v is composed of only the end portion of the fabric, the end portion may hang downward and the contour of the second opening region 107 may be broken.
  • the core material 117 By providing the core material 117 with high rigidity on the upper end portion 103v of the third side surface fabric 103, it is possible to prevent the end portion from hanging downward.
  • the core material may be linear, but as shown in FIG. 13, the effect of promoting smoke exhaust can be expected by forming the core material into a curved shape protruding outward.
  • FIGS. 14 to 16 are first and second front views of the bonfire windshield 1D
  • FIG. 16 is a rear view of the bonfire windshield 1D.
  • the basic configuration of the bonfire windshield 1D of the present embodiment is the same as that of the bonfire windshield 1 of the first embodiment.
  • the difference is that the bonfire windshield 1 of the first embodiment has a quadrangular pyramid-shaped fabric structure having a polygonal pyramid shape having an open bottom surface and made of cloth, whereas the bonfire windshield 1D of the present embodiment has a difference.
  • the bonfire windshield 1D of the present embodiment has a difference. , In the form of a hexagonal pyramid.
  • the bonfire windshield 1D includes a first side cloth 201, a second side cloth 202, a third side cloth 203, a fourth side cloth 204, a fifth side cloth 205, and a sixth side cloth 206, which have a triangular shape, respectively. , Arranged to form a hexagonal cone fabric structure.
  • the bottom surface of the bonfire windshield 1D is a hexagon composed of a first side cloth 201, a second side cloth 202, a third side cloth 203, a fourth side cloth 204, a fifth side cloth 205, and a sixth side cloth 206.
  • the first opening region 215 is provided in the region from the middle to the bottom surface.
  • the first opening region 215 is a first slit S1 provided between the first side surface cloth 201 and the second side surface cloth 202, and a second slit S2 provided between the sixth side surface cloth 206 and the first side surface cloth 201. It is configured by opening the front door 210 which is a part of the first side surface cloth 201 separated by the above.
  • the first slit S1 and the second slit S2 may be provided so as to reach a height of 1/4 to 9/10 with respect to the height (H) of the hexagonal pyramid fabric structure from the bottom opening BO. ..
  • the first slit S1 and the second slit S2 are provided up to a height of about 1 ⁇ 2 of the height (H) of the quadrangular pyramid cloth structure.
  • the second opening region 213 is located above the middle of the third side surface cloth 203 arranged to face the first side surface cloth 201. Is provided.
  • the first side surface cloth 201, the second side surface cloth 202, the third side surface cloth 203, the fourth side surface cloth 204, the fifth side surface cloth 205, and the sixth side surface cloth 206 are highly flame-retardant materials. Since the specific material used for each side cloth is the same as that of the bonfire windshield 1 of the first embodiment, the overlapping description will be omitted.
  • the first side surface fabric 201 has a triangular shape reaching the bottom surface, and the region from the middle to the bottom surface is the second side surface fabric 202 and the sixth side surface located on both sides by the first slit S1 and the second slit S2 described above. It constitutes a front door 210 that is not fixed to the cloth 206 and opens and closes the first opening region 215. In the state shown in FIG. 15, the front door 210 is in a state of being rolled upward, and although not shown, it may be fixed by a known fixing method member such as a button, a fastener, or a hook hook.
  • the front door 210 is fixed by winding it up, but it is also possible to turn the front door 210 upward as it is without winding it up and fix the lower end near the top of the bonfire windshield 1D.
  • the side on which the first side surface cloth 201 provided with the first opening region 215 is located is the front side and faces the user.
  • the appearance form and the like required for the bonfire windshield 1D are the same as those of the bonfire windshield 1 of the first embodiment, so that the first opening region 215 becomes the first opening region 215 when the bonfire windshield 1D is viewed as a whole.
  • the lower, second opening region 213 is on the upper side, forming a good air flow path from the first opening region 215 to the second opening region 213.
  • the tops of the first side cloth 201, the second side cloth 202, the third side cloth 203, the fourth side cloth 204, the fifth side cloth 205, and the sixth side cloth 206 at a position separated from the top by a predetermined distance. Since the six side fabrics are adjacent to each other, a small hexagonal thrust C2 is formed on the top of the bonfire windshield 1D. Thereby, as shown in FIGS. 9 and 10 of the first embodiment, the top of the stand can be housed inside the hexagonal thrust C2. Further, even when suspended from the top of a stand or the like, the hexagonal pyramid shape of the bonfire windshield 1D can be stabilized.
  • An annular member 211 for hanging is provided at the apex of the hexagonal pyramid of the bonfire windshield 1D.
  • the annular member 211 is used when installing the bonfire windshield 1D, but is not necessarily limited to the annular member, and various known members can be used.
  • Reinforcing holes 209 reinforced by eyelets or the like are provided at the corners of the lower ends of the second side cloth 202, the third side cloth 203, the fourth side cloth 204, the fifth side cloth 205, and the sixth side cloth 206. ing.
  • the reinforcing hole 209 reinforced by the eyelet or the like is also used when installing the bonfire windshield 1, but the reinforcing hole 109 reinforced by the eyelet or the like is not necessarily an essential configuration, and various known members. Can be used.
  • FIG. 17 is a perspective view from the front side of the bonfire windshield 1E.
  • the basic configuration of the bonfire windshield 1E of the present embodiment is the same as that of the bonfire windshield 1D of the fifth embodiment.
  • the first slit S1 is provided only between the first side surface cloth 201 and the sixth side surface cloth 206.
  • a part of the first side cloth 201 constitutes the front door 210 on the left side
  • a part of the sixth side cloth 206 constitutes the front door 212 on the right side, so that the first opening area 215 is like a Kannon door. It is possible to open and close the door.
  • FIGS. 18 to 20 are first and second perspective views from the front side of the bonfire windshield 1F
  • FIG. 20 is a perspective view from the back side of the bonfire windshield 1F.
  • the basic configuration of the bonfire windshield 1F of the present embodiment is the same as that of the bonfire windshield 1 of the first embodiment.
  • the difference is that the bonfire windshield 1 of the first embodiment has a quadrangular pyramid-shaped fabric structure having a polygonal pyramid shape having an open bottom surface and made of cloth, whereas the bonfire windshield 1F of the present embodiment has a difference.
  • the bonfire windshield 1F includes a side cloth 301 having a conical shape.
  • the bottom surface of the bonfire windshield 1F has a circular bottom opening BO composed of the side cloth 301 on the conical side.
  • a first opening region 315 is provided in the region from the middle to the bottom surface in the height direction of the side fabric 301.
  • the first opening region 315 is configured by opening the front door 303 which is a part of the side cloth 301 separated by the first slit S1 and the second slit S2 provided in the side cloth 301.
  • the first slit S1 and the second slit S2 may be provided so as to reach a height of 1/4 to 9/10 with respect to the height (H) of the conical fabric structure from the bottom opening BO.
  • the first slit S1 and the second slit S2 are provided up to a height of about 1 ⁇ 2 of the height (H) of the conical fabric structure.
  • a second opening region 312 is provided at a position different from the position where the first slit S1 and the second slit S2 are provided, at a position facing the front door 303 and above the middle of the side cloth 301.
  • the side cloth 301 is a highly flame-retardant material. Since the specific material used for each side cloth is the same as that of the bonfire windshield 1 of the first embodiment, the overlapping description will be omitted.
  • the front door 303 is in a state of being rolled upward, and although not shown, it may be fixed by a known fixing method member such as a button, a fastener, or a hook hook.
  • the side cloth 301 is fixed by being rolled up, but the front door 210 may be turned upside down as it is without being rolled up, and the lower end may be fixed near the top of the bonfire windshield 1F.
  • the appearance form and the like required for the bonfire windshield 1F is the same as that of the bonfire windshield 1 of the above embodiment 1, so that the first opening region 315 when the bonfire windshield 1F is viewed as a whole. Is on the lower side and the second opening region 312 is on the upper side, forming a good air flow path from the first opening region 315 to the second opening region 312.
  • annular member 311 for hanging is provided at the apex of the bonfire windshield 1F.
  • This annular member 311 is used when installing the bonfire windshield 1F, but as in each of the above embodiments, the annular member is not necessarily limited to the annular member, and various known members are used. Is possible.
  • FIG. 21 is a perspective view from the front side of the bonfire windshield 1G.
  • the basic configuration of the bonfire windshield 1G of the present embodiment is the same as that of the bonfire windshield 1G of the eighth embodiment. The difference is that the front door is not provided, and the side cloth 301 is provided with a semi-circular notch 310 constituting the first opening region 315. Other configurations are the same as those of the bonfire windshield 1G of the eighth embodiment.
  • 1,1A, 1B, 1C, 1D, 1E, 1F, 1G Windshield for bonfire 101,201 1st side cloth, 102,202 2nd side cloth, 103,203 3rd side cloth, 103v upper end, 104,204 4th side cloth, 105,210,212,303 front door, 106,215,315 first opening area, 107,213,312 second opening area, 108,211,311 annular member, 109,209 reinforcing holes, 110 Belt member, 117 core material, 120 door, 200 bonfire stand, 205 5th side cloth, 206 6th side cloth, 301 side cloth, 1000 quadruped, 2000 stand, S1 1st slit, S2 2nd slit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Woven Fabrics (AREA)

Abstract

Pare-flamme (1) pour flamme vive comprenant une structure de tissu qui a une surface inférieure ouverte, est constituée de tissu et a une forme conique ou polygonale, la structure de tissu comprenant : une ou deux fentes (S1, S2) atteignant une hauteur de 1/4 à 9/10 de la hauteur de la structure de tissu à partir de la surface inférieure de la structure de tissu; et une zone ouverte (107) qui se trouve à une position différente de celle des fentes (S1, S2) et atteint une hauteur de 1/3 à 2/3 à une hauteur de 3/4 à 9/10 de la hauteur de la structure de tissu à partir de la surface inférieure de la structure de tissu, et la structure de tissu est constituée d'un matériau hautement ignifuge.
PCT/JP2021/042397 2020-11-30 2021-11-18 Pare-flamme pour flamme vive WO2022113870A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-198400 2020-11-30
JP2020198400A JP7226422B2 (ja) 2020-11-30 2020-11-30 焚火用風防

Publications (1)

Publication Number Publication Date
WO2022113870A1 true WO2022113870A1 (fr) 2022-06-02

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Application Number Title Priority Date Filing Date
PCT/JP2021/042397 WO2022113870A1 (fr) 2020-11-30 2021-11-18 Pare-flamme pour flamme vive

Country Status (2)

Country Link
JP (1) JP7226422B2 (fr)
WO (1) WO2022113870A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05202642A (ja) * 1991-11-15 1993-08-10 Touhei Shoji Kk テント類用防虫具
JP3177784U (ja) * 2012-06-06 2012-08-16 株式会社新進 簡易コンロ
JP2020139254A (ja) * 2019-03-01 2020-09-03 ユニチカ株式会社 難燃性布帛

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05202642A (ja) * 1991-11-15 1993-08-10 Touhei Shoji Kk テント類用防虫具
JP3177784U (ja) * 2012-06-06 2012-08-16 株式会社新進 簡易コンロ
JP2020139254A (ja) * 2019-03-01 2020-09-03 ユニチカ株式会社 難燃性布帛

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JP7226422B2 (ja) 2023-02-21

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