Air tube structure using jacket

Abstract

The present invention provides a jacket assembly (100) used for constructing an air tube structure, the jacket assembly comprising a plurality of jackets (10a, 10b), each of which has a cavity (S) formed therein in the longitudinal direction, is open at both ends (S1, S2), and has cut portions (18a, 18b) formed on the side surfaces thereof, wherein one of the jackets (10b) passes through the cut portions (18a, 18a) of the other jacket (10a) and is thus coupled thereto.

Description

Air tube structure using a jacket

[0001] The present invention relates to an air tube structure using a jacket. For example, an air tube structure using a jacket according to the present invention can be used to construct a frame for an air tent, an air dome, an air boat, or the like.

[0002] An air tube, which is a tube made of rubber or synthetic resin and inflates when air is injected, can be used to construct the frame, or skeleton, of an air tube structure such as an air tent, air dome, or air boat.

[0003] For example, the 'multipurpose air dome house' of Korean Patent No. 10-1732547 shows an air dome that is constructed by forming a frame with an air-injected tube (air tube) and combining a cover of various materials on the outer surface of the frame formed with the tube.

[0004] When constructing an air tube structure using an air tube in this way, the following conditions are required.

[0005] First, it should be possible to easily form a structure of the desired shape using air tubes or by connecting air tubes.

[0006] Second, the pressure of the air injected into the air tube determines the rigidity of the air tube structure. Therefore, the greater the pressure the air tube can withstand, the more rigid the air tube structure can be. Therefore, the air tube's ability to withstand sufficiently high air pressure is essential. This will enable the construction of large-scale frames, such as air domes.

[0007] Third, the air tube must be protected from external impacts. For example, it must not be damaged by sharp external objects, causing air leaks.

[0008] The inventor of the present invention focused on fire hoses in relation to the requirements of air tubes required for constructing such air tube structures.

[0009] In other words, fire hoses must withstand strong water pressure and external impacts when used in extreme situations such as fires, and research has been conducted with the expectation that they can be applied to air tubes for air tube structures.

[0010] The fire hose is using a jacket.

[0011] According to the 'Fire hose data collection according to fire equipment standard specifications (KFS)-2-0026-2023-01' published by the National Fire Agency as Fire Agency Notice No. 2023-259, a jacket refers to a cylindrical fabric made of fibers woven with warp and weft yarns.

[0012] Currently, the above jacket is widely used by weaving high-strength yarns or fibers (high-strength yarns or high-strength fibers) such as high-strength polyethylene multifilament into a cylindrical shape.

[0013] A typical fire hose has a tube made of rubber or synthetic resin embedded inside the jacket, and the outer surface of the tube and the inner surface of the jacket are bonded to each other.

[0014] For example, a structure in which a polyurethane (PU) tube is installed inside a jacket made by weaving high-strength polyester filaments is currently being used as a fire hose.

[0015] The above firefighting equipment standard designates jacket as jacket, and in some literature, it is also denoted as jacket. The English equivalent of these terms is jacket, and this specification uses jacket as its designation.

[0016] Fire hoses that use a jacket like this normally take up a small volume, but when water pressure passes through them, they can expand rapidly and withstand strong water pressure.

[0017] Additionally, fire hoses using jackets like this are used in extreme situations such as fires, and can sufficiently protect the inner tube from external impact.

[0018] The inventor of the present invention has invented a jacket assembly formed by combining jackets by utilizing the characteristics of such jackets, and has installed an air tube in the jacket assembly to construct an air tube structure.

[0019] In this way, when constructing an air tube structure using a jacket assembly and an air tube, a structure of a desired shape can be easily constructed using a single jacket assembly and an air tube or by connecting multiple jacket assembly and air tubes. In addition, the air tube can withstand strong internal air pressure due to the jacket and is sufficiently protected from external impacts. Accordingly, an air tube structure having sufficient rigidity and durability can be easily constructed.

[0020] As a result of research on prior art for the present invention, Korean Patent No. 10-2182585 entitled 'Air Pole for Tent' and Korean Patent No. 10-2619870 entitled 'Air Pole for Tent' were discovered, but these only use a jacket with a built-in tube as an air tube.

[0021] The purpose of the present invention is to provide an air tube structure that can easily be constructed into a structure of a desired shape, and in which the air tube can withstand strong internal air pressure and also provide sufficient protection from external impacts. In other words, the present invention provides an air tube structure that has sufficient rigidity and durability and can be easily constructed.

[0022] The present invention

[0023] (a) A jacket assembly comprising a plurality of jackets having a hollow interior along the longitudinal direction, open ends, and cut portions on the sides thereof, wherein one jacket is connected in such a way that it penetrates the cut portion of the side of another jacket, and the jackets have a shape in which they intersect each other;

[0024] (b) having a plurality of tubes that are interconnected with each other, the plurality of tubes having a shape that intersects each other along the shape of the jacket assembly, and including an air tube installed in the jacket assembly,

[0025] (c) The air tube structure is characterized in that the air tube is installed in the jacket assembly in such a way that one tube of the air tube is arranged along the inner cavity of the one jacket, and another tube of the air tube intersecting the one tube of the air tube passes through a cut portion of the side of the one jacket and extends into the inner cavity of the other jacket.

[0026] According to the present invention,

[0027] (a) The jacket assembly comprises a two-jacket assembly comprising two jackets intersecting each other, wherein,

[0028] (a1) Each jacket of the combination of the two jackets has two of the above cut portions on its side,

[0029] (a2) Of the two jackets of the combination of the two jackets, one jacket penetrates the two cut portions of the side of the other jacket,

[0030] (a3) The two cut portions of the one jacket penetrating the two cut portions of the side of the other jacket are located inside the other jacket,

[0031] (b) The air tube comprises two air tubes, each of which is composed of a first tube and a second tube that intersect each other,

[0032] (c) The air tubes of the two tubes are arranged such that the first tube is arranged along the cavity inside the one jacket, and the second tube extends through two cutouts of the one jacket located inside the other jacket and into the cavity inside the other jacket.

[0033] According to the present invention, the cut portion of the side where one jacket penetrates another jacket and the end of the air tube of the air tube structure and the jacket are sealed.

[0034] According to the present invention, the jacket may be equipped with an inner tube having an outer surface bonded to the inner surface of the jacket.

[0035] According to the present invention, the jacket assembly and the air tube correspond one-to-one to form a basic unit of an air tube structure, and it is preferable that a plurality of these basic units of the air tube structure are provided and combined with each other to form an air tube structure.

[0036] In this case, it is preferable that the basic unit of the air tube structure be provided in multiple types, with various types of jacket assembly and corresponding air tubes.

[0037] In this case, it is preferable that the end of one tube of the air tube of the basic unit of one of the air tube structures and the end of one tube of the air tube of the basic unit of another of the air tube structures are joined to each other, and that the portion of the tubes joined to each other protruding beyond the jacket of the jacket assembly is covered on the outer surface by the jacket.

[0038] The present invention provides a jacket assembly characterized in that a plurality of jackets are combined, each jacket having a hollow interior along a longitudinal direction, open ends, and cut portions on its side, and one jacket is combined in such a way that it penetrates the cut portion of the side of another jacket, so that the jackets have a shape in which they intersect each other.

[0039]

[0040] According to the present invention, a jacket assembly is formed by combining jackets, an air tube is mounted inside the jacket assembly to form a basic unit of an air tube structure, and an air tube structure can be formed by the basic unit of the air tube structure or by mutual combination of basic units of the air tube structure.

[0041] Specifically, in this case, one jacket is connected in a manner that it penetrates the cut-out portion of the side of the other jacket so that the jackets have a shape that intersects each other, and the air tube is installed in the jacket assembly in a manner that one tube of the air tube is arranged along the inner cavity of the one jacket and another tube of the air tube that intersects the one tube of the air tube extends through the cut-out portion of the side of the one jacket and into the inner cavity of the other jacket.

[0042] According to this structure, a structure of a desired shape can be easily constructed by connecting a single jacket assembly and an air tube or multiple jacket assembly and air tubes, and the air tube can withstand strong internal air pressure due to the jacket and be sufficiently protected from external impact.

[0043] Accordingly, it becomes possible to easily construct an air tube structure with sufficient rigidity and durability.

[0044]

[0045] Figures 1 to 5 are drawings showing the structure of a jacket assembly;

[0046] Fig. 6 is a drawing showing an air tube corresponding to the jacket assembly of Fig. 5 in Fig. 1;

[0047] Figures 7 and 8 are drawings showing an air tube being installed in a jacket assembly;

[0048] Figure 9 is a drawing showing the process of combining basic units of an air tube structure;

[0049] Figures 10 to 13 are drawings showing examples of air tube structures;

[0050] Figures 14 and 15 are drawings showing the process of sealing an air tube.

[0051]

[0052] Now, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0053] In the present invention, a jacket refers to a cylindrical fabric made of fibers woven with warp and weft yarns.

[0054] For example, the jacket may be made of a cylindrical fabric woven with high-strength yarns or fibers (hereinafter referred to as high-strength yarns or high-strength fibers) such as high-strength polyethylene multifilament, polyester fiber, nylon fiber, aramid fiber, or carbon fiber.

[0055] Meanwhile, the jacket according to the present invention includes one that is made by weaving different types of high-strength yarns or fibers into the weft and warp, such as a jacket having a weft made of polyester filament yarn and a warp made of polyester nylon series high-strength yarn.

[0056] First, according to the present invention, with reference to FIGS. 1 to 5, a plurality of the aforementioned jackets are provided and a jacket assembly (100) (200) (300) (400) (500) in which these jackets are combined is provided.

[0057] These jacket combinations (100)(200)(300)(400)(500) are provided with a plurality of jackets having a cavity inside along the length direction, open ends, and cut portions on the sides, and are combined in such a way that one jacket penetrates the cut portion on the side of another jacket, so that the jackets have a shape in which they intersect each other.

[0058] Referring to Fig. 1, the jacket assembly (100) is provided with two jackets (10a) (10b) and is formed by combining these jackets (10a) (10b).

[0059] The jacket (10a) has a cavity (S) inside along the length direction, is open at both ends (S1) (S2), and has a cut portion (18a) (18a) on the side.

[0060] The jacket (10b) has a cavity (S) inside along the length direction, is open at both ends (S1) (S2), and has a cut portion (18b) (18b) on the side.

[0061] In an embodiment of the present invention, the jacket (10a) (10b) is equipped with an inner tube (12) made of rubber or synthetic resin material bonded thereto.

[0062] That is, a tube (12) made of rubber or synthetic resin, the outer surface of which is mutually bonded to the inner surface of the jacket (10a) (10b), is mounted inside the jacket (10a) (10b).

[0063] The jackets described below may also have a rubber or synthetic resin tube (12) installed inside them. However, in the present invention, the inner tube (12) is not necessarily installed inside the jacket. The installation of the inner tube (12) may be considered depending on the load of the air tube structure being constructed. (In other words, the jacket refers to a cylindrical fabric made of fibers woven with warp and weft yarns as defined above, and may or may not have an inner tube installed inside.)

[0064] For these two jackets (10a)(10b), one jacket (10b) penetrates the cut portion (18a)(18a) of the side of the other jacket (10a) to form a jacket assembly (100).

[0065] In this case, when one jacket (10b) penetrates the cut portion (18a) (18a) of the side of another jacket (10a) to form a jacket assembly (100), when the hollow portion (S) inside the other jacket (10a) is viewed from one end (S1) or (S2), the cut portion (18b) (18b) of the side of one jacket (10b) becomes visible.

[0066] That is, the cut portion (18b)(18b) of one jacket (10b) penetrating the cut portion (18a)(18a) of the side of the other jacket (10a) is located inside the other jacket (10a).

[0067] This jacket assembly (100) has a shape in which two jackets (10a) (10b) intersect each other.

[0068] Referring to Fig. 2, the jacket assembly (200) is provided with two jackets (20a) (20b), and is formed by combining these jackets (20a) (20b).

[0069] These are different from the jacket assembly (100) described with reference to Fig. 1 in that the angle at which one jacket (20b) penetrates the cut portion (28a) (28a) of the side of the other jacket (20a) is different.

[0070] For these two jackets (20a)(20b), one jacket (20b) penetrates the cut portion (28a)(28a) of the side of the other jacket (20a) to form a jacket assembly (200), and the cut portion (28b)(28b) of one jacket (20b) penetrating the cut portion (28a)(28a) of the side of the other jacket (20a) is positioned inside the other jacket (20a).

[0071] This jacket assembly (200) has a shape in which two jackets (20a) (20b) intersect each other.

[0072] Figure 3 shows that two jackets (30a) (30b) are provided and they are combined to provide a jacket assembly (300) having a T shape.

[0073] In this case, the jacket (30b) penetrates the cut portion (38a) (38a) on the side of the jacket (30a), and the portion (33) of the jacket (30b) that protrudes beyond the jacket (30a) is folded and attached to the outer surface of the jacket (30a), thereby creating a jacket assembly (300) having a T shape.

[0074] In this case, the cut portion (38b)(38b) of the one jacket (30b) penetrating the cut portion (38a)(38a) of the side of the other jacket (30a) is positioned inside the other jacket (30a).

[0075] In addition, the jacket assembly (300) has a shape in which two jackets (30a) (30b) intersect each other.

[0076] FIG. 4 shows a jacket assembly (400) provided with two jackets (40a) (40b) and joined together such that one jacket (40b) penetrates the other jacket (40a) at a 90° angle.

[0077] In this case, the jacket (40b) penetrates the cut portion (48a) (48a) on the side of the jacket (40a), and the cut portions (48a) (48a) form a 90° angle with respect to each other.

[0078] Accordingly, when the jacket (40b) is joined by penetrating the cut portion (48a) (48a) on the side of the jacket (40a), a jacket assembly (400) is formed in which one jacket (40b) penetrates the other jacket (40a) at a 90° angle.

[0079] In this case, when the common portion (S) of the jacket (40a) is viewed from one end (S1) or (S2) of the jacket (40a), the cut portion (48b) (48b) of the side of the jacket (40b) is visible, and the cut portion (48b) (48b) of one jacket (40b) penetrating the cut portion (48a) (48a) of the side of the other jacket (40a) is located inside the other jacket (40a).

[0080] This jacket assembly (400) has a shape in which two jackets (40a) (40b) intersect each other.

[0081] Figure 5 shows that three jackets (50a), (50b), and (50c) are provided and combined to form a jacket assembly (500) having a shape in which they extend radially in six directions.

[0082] In this case, first, two jackets (50a) (50b) are combined to form an X shape, and then a jacket (50c) penetrates the cut portion (58b) (58b) on the side of the jacket (50b), intersects with each other, and forms a jacket assembly (500) that extends radially in six directions.

[0083] According to the present invention, an air tube (80)(280)(380)(480)(580) installed in a jacket assembly (100)(200)(300)(400)(500) is provided.

[0084] The above air tube (80)(280)(380)(480)(580) has a plurality of tubes that are connected to each other, and has a shape in which the plurality of tubes intersect each other along the shape of the jacket assembly.

[0085] With reference to FIG. 6, for the jacket assembly (100) of FIG. 1, an air tube (80) having an X-shape and composed of a first tube (81) and a second tube (82) is provided, and for the jacket assembly (200) of FIG. 2, an air tube (280) having an X-shape that is different from that of FIG. 6 (a) and composed of a first tube (281) and a second tube (282) is provided, and for the jacket assembly (300) of FIG. 3, an air tube (380) having a T-shape and composed of a first tube (381) and a second tube (382) is provided, and for the jacket assembly (400) of FIG. 4, an air tube (80) having a first tube (481), a second tube (482) and a third tube (483) is provided so that it can be installed inside the jacket assembly (400) according to the shape thereof. An air tube (480) is provided, in which case the third tube (483) intersects the first tube (481) and the second tube (482) in a space perpendicular to them.

[0086] For the jacket assembly (500) of Fig. 5, an air tube (580) is provided that has a shape extending radially in six directions and is composed of a first tube (581), a second tube (582), and a third tube (583).

[0087] The above air tubes (80)(280)(380)(480)(580) are installed in the jacket assembly (100)(200)(300)(400)(500) in such a way that one tube is arranged along the inner cavity of one jacket and another tube of the air tube intersects the one tube and extends through the cut portion of the side of the one jacket and into the inner cavity of the other jacket.

[0088] This will be explained using the jacket assembly (100) of Fig. 1 and the corresponding air tube (80) as an example.

[0089] First, referring to Fig. 7, a jacket assembly (100) is provided, and an air tube (80) is provided corresponding to this.

[0090] The above jacket assembly (100) has four outlets (101), (102), (103), and (104) in the shape of an X by combining two jackets (10a) and (10b), and correspondingly, the air tube (80) is composed of a first tube (81) and a second tube (82) that are mutually connected and intersecting to have an X shape, and the first tube (81) has an upper part (811) and a lower part (812), and the second tube (82) has a right part (822) and a left part (821).

[0091] In this case, the jacket assembly (100) has one jacket (10b) penetrating two cut portions (18a) (18a) of another jacket (10a), and the two cut portions (18b) (18b) of one jacket (10b) are located inside the other jacket (10a).

[0092] The above air tube (80) is inserted as a whole, for example, into the outlet (103) of the jacket assembly (100), and the first tube (81) is placed along the cavity inside the one jacket (10b), while the right side (822) and the left side (821) of the second tube (82) are each pulled out through the right and left cut portions (18b) (18b) of the one jacket (10b) and placed so as to extend outward along the cavity inside the other jacket (10a).

[0093] Accordingly, each part (822)(821)(812)(811) of the air tube (80) is pulled out to the outside through the four outlets (101)(102)(103)(104) of the jacket assembly (100).

[0094] Fig. 8 shows a state in which air is injected into the air tube (80) of the jacket assembly (100) and air tube (80) of Fig. 7 combined (1000).

[0095] In the case of these figures 7 and 8, the cut portion (18a) (18a) where one jacket (10b) penetrates another jacket (10a) is sealed.

[0096] Sealing can be done in a variety of ways.

[0097] For example, the cut portion (18a) (18a) where one jacket (10b) passes through another jacket (10a) can be sealed with tape or by applying adhesive or silicone, etc. In another case, the entire jacket assembly (100) and air tube (80) combined (1000) can be immersed in an adhesive or sealant so that the cut portion (18a) (18a) where one jacket (10b) passes through another jacket (10a) is sealed.

[0098] Figure 14 shows an example of such a seal.

[0099] In this case, as shown, two short-length jackets (118) are prepared, and each jacket (118) (118) is inserted into an X-shaped jacket assembly (1000) as shown, so that each (118) (118) blocks the side cutout (18a) (18a) (18b) (18b).

[0100] Afterwards, the periphery of these jackets (118)(118) is covered with adhesive, silicone, etc., or wrapped with tape to prevent leakage. In this case, both the jacket (118)(118) and its periphery may be covered or wrapped.

[0101] According to the present invention, the jacket assembly (100)(200)(300)(400)(500) and the air tube (80)(280)(380)(480)(580) correspond one to one to form the basic unit of the air tube structure, and it is preferable that a plurality of these basic units of the air tube structure are provided so that they are combined with each other to form the air tube structure.

[0102] In this case, it is preferable that the basic unit of the air tube structure be provided in multiple types, with various types of jacket assembly and corresponding air tubes.

[0103] For example, the air tube structure (20000)(30000) of FIGS. 11 and 12 is formed by installing air tubes (80)(280)(380)(580) corresponding to the inside of the jacket assembly (100)(200)(300)(500) and the basic units (1000)(2000)(3000)(5000) of the air tube structure are connected to each other to form the overall air tube structure (20000)(30000).

[0104] When the overall air tube structure (20000)(30000) is formed in this way, the end of each air tube and the end of the jacket surrounding it are sealed, and an air inlet (8) through which air is injected is installed.

[0105] Sealing the ends of the air tube and jacket can be accomplished in various ways. In the case of the air tube structures (20000) (30000) of FIGS. 11 and 12, a cap (49) is placed on the ends of the jacket and air tube and sealed by heat bonding.

[0106] Figure 15 shows an example in which the end of an air tube (80) and the jacket (10a) surrounding it are sealed.

[0107] For an air tube (80) whose end is primarily sealed by bonding, a jacket (10a) extending beyond the extended portion is covered with a jacket (118) having a short length, and then a heat shrink tube (418) is covered and heat is applied so that the heat shrink tube (418) shrinks, thereby safely sealing the end of the air tube (80) and the end of the jacket (10a) surrounding it.

[0108] In this case, if the length of the jacket (10a) is rolled up to a portion that exceeds the air tube (80), and the length of the air tube (80) is longer than that of the current drawing so that the end almost coincides with the end of the jacket (10a), the jacket (10a) and the air tube (80) may be rolled up together, a jacket (118) having a short length may be placed on the rolled portion, and then a heat shrink tube (418) may be placed thereon and heat may be applied so that the heat shrink tube (418) shrinks, thereby safely sealing the end of the air tube (80) and the end of the jacket (10a) surrounding it.

[0109] Referring to FIGS. 11 and 12, the basic unit (1000) of the air tube structure is a jacket assembly (100) in which an air tube (80) is installed, the basic unit (2000) of the air tube structure is a jacket assembly (200) in which an air tube (280) is installed, the basic unit (3000) of the air tube structure is a jacket assembly (300) in which an air tube (380) is installed, and the basic unit (5000) of the air tube structure is a jacket assembly (500) in which an air tube (580) is installed.

[0110] The basic units (1000)(2000)(3000)(5000) of these air tube structures are combined with each other to form the overall air tube structure (20000)(30000).

[0111] Referring to Fig. 9, an example is shown in which the basic units (1000a) (1000b) of the air tube structure are connected to each other.

[0112] The process of connecting the basic unit (1000a) of an air tube structure formed by installing an air tube (80a) inside a jacket assembly (100a) and the basic unit (1000b) of an air tube structure formed by installing an air tube (80b) inside a jacket assembly (100b) to each other is shown.

[0113] First, with respect to the basic unit (1000a) of the air tube structure, the right side (822a) of the second tube (82a) of the air tube (80a) installed in the jacket assembly (100a) protrudes and extends beyond the jacket of the jacket assembly (100a), and a jacket (40a) is installed on the right side (822a) of the second tube (82a) of the air tube (80a) that protrudes and extends in this manner and is folded along the longitudinal direction.

[0114] Likewise, for the basic unit (1000b) of the air tube structure, the left side (821b) of the second tube (82b) of the air tube (80b) installed in the jacket assembly (100b) protrudes and extends beyond the jacket of the jacket assembly (100b), and a jacket (40b) is installed on the left side (821b) of the second tube (82b) of the air tube (80b) that protrudes and extends in this manner and is folded along the longitudinal direction. (Fig. 9 (a))

[0115] In this case, the jacket (40a) (40b) has a certain length, is a jacket with a cavity inside along the length direction, and is open at both ends.

[0116] Next, the right side (822a) of the second tube (82a) of these air tubes (80a) and the left side (821b) of the second tube (82b) of the air tube (80b) are thermally bonded to each other. (Fig. 9 (b)) The bonded boundary portion is indicated by the symbol 812.

[0117] Next, the jackets (40a) (40b) folded in the longitudinal direction are pulled to fit each other and left as is or bonded with an adhesive so that one goes into the other. (Fig. 9 (c)) In addition, the jackets (40a) (40b) are also bonded to the jackets of the jacket assembly (100a) (100b). The bonded portions are indicated by the reference numerals 4 and 44a, 44b.

[0118] In this way, the end of one tube (82a) of the air tube (80a) of the basic unit (1000a) of one air tube structure and the end of one tube (82b) of the air tube (82b) of the basic unit (1000b) of another air tube structure are joined to each other, and the portion of the tubes (82a)(82b) joined to each other that protrudes beyond the jacket of the jacket assembly (100a)(100b) is covered on the outer surface by the jacket (40a)(40b).

[0119] The air tube structure (20000) of Fig. 11 is formed by connecting the basic units (1000) (2000) (3000) of the air tube structure, in which air tubes (80) (280) (380) corresponding to individual jacket assemblies (100) (200) (300) of different types are installed, to each other in the manner described with reference to Fig. 9.

[0120] In addition, the air tube structure (30000) of FIG. 12 is formed by connecting the basic units (1000) (2000) (3000) (5000) of the air tube structure, which are formed by installing air tubes (80) (280) (380) (580) corresponding to jacket assemblies (100) (200) (300) (500) of different types, to each other in the manner described with reference to FIG. 9.

[0121] According to the present invention, as shown in FIG. 10, an air tube structure (10000) can be constructed by combining a single jacket assembly (100) and an air tube (80).

[0122] That is, the jackets (10a) and (10b) are joined so that one jacket (10b) penetrates the cut-out (18a) (18a) of the side of the other jacket (10a) (Fig. 10(a)), and an air tube (80) is installed inside the jacket assembly (100) thus formed (Fig. 10(b)), and then an air inlet (8) and a sealing cap (49) are installed to complete the air tube structure (10000). (Fig. 10(c))

[0123] Afterwards, the state in which air is injected into the air tube structure (1000) through the air inlet (8) is shown in (d) of Fig. 10.

[0124] Figure 13 shows an example of an air tube structure (50000) that forms an octagonal shape when viewed from a plan view.

[0125] In this case, the jacket (A1) and the jacket (B1) are combined and an air tube of a corresponding shape is installed inside them to form a basic unit (A1B1) of the air tube structure, the jacket (B2) and the jacket (D1) are combined and an air tube of a corresponding shape is installed inside them to form a basic unit (B2D1) of the air tube structure, the jacket (A2) and the jacket (D2) are combined and an air tube of a corresponding shape is installed inside them to form a basic unit (A2D2) of the air tube structure, the jacket (C1) and the jacket (D3) are combined and an air tube of a corresponding shape is installed inside them to form a basic unit (C1D3) of the air tube structure, the jacket (A3) and the jacket (C2) are combined and an air tube of a corresponding shape is installed inside them to form a basic unit (A3C2) of the air tube structure, and these air tube structures The basic units (A1B1)(B2D1)(A2D2)(C1D3)(A3c2) are combined in the manner described in Fig. 9 to form an octagonal air tube structure (5000).

[0126] According to the present invention, a jacket assembly is formed by combining jackets, an air tube is installed inside the jacket assembly to form a basic unit of an air tube structure, and an air tube structure can be formed by the basic unit of the air tube structure or by mutual combination of basic units of the air tube structure.

[0127] Specifically, in this case, one jacket is connected in a manner that it penetrates the cut-out portion of the side of the other jacket so that the jackets have a shape that intersects each other, and the air tube is installed in the jacket assembly in a manner that one tube of the air tube is arranged along the inner cavity of the one jacket and another tube of the air tube that intersects the one tube of the air tube extends through the cut-out portion of the side of the one jacket and into the inner cavity of the other jacket.

[0128] According to this structure, a structure of a desired shape can be easily constructed by connecting a single jacket assembly and an air tube or multiple jacket assembly and air tubes, and the air tube can withstand strong internal air pressure due to the jacket and be sufficiently protected from external impact.

[0129] Accordingly, it becomes possible to easily construct an air tube structure with sufficient rigidity and durability.

Claims

1. (a) A jacket assembly having a plurality of jackets having a cavity inside along the length direction, open ends, and cut portions on the sides thereof, wherein one jacket is connected in such a way that it penetrates the cut portion on the side of another jacket, and the jackets have a shape in which they intersect each other; (b) having a plurality of tubes that are interconnected with each other, the plurality of tubes having a shape that intersects each other along the shape of the jacket assembly, and including an air tube installed in the jacket assembly, (c) An air tube structure characterized in that the air tube is installed in the jacket assembly in such a way that one tube of the air tube is arranged along the inner cavity of the one jacket and another tube of the air tube intersects the one tube of the air tube and extends through a cut portion of the side of the one jacket and into the inner cavity of the other jacket.

2. In paragraph 1, (a) The jacket assembly comprises a two-jacket assembly comprising two jackets intersecting each other, wherein, (a1) Each jacket of the combination of the two jackets has two of the above cut portions on its side, (a2) Of the two jackets of the combination of the two jackets, one jacket penetrates the two cut portions of the side of the other jacket, (a3) The two cut portions of the one jacket penetrating the two cut portions of the side of the other jacket are located inside the other jacket, (b) The air tube comprises two air tubes, each of which is composed of a first tube and a second tube that intersect each other, (c) An air tube structure characterized in that the air tubes of the two tubes are arranged along the cavity inside one jacket with respect to the combination of the two jackets, and the second tube extends through two cut portions of the one jacket located inside the other jacket and into the cavity inside the other jacket.

3. In paragraph 1, An air tube structure characterized in that the cut portion of the side where the one jacket penetrates the other jacket and the ends of the air tube and the jacket of the air tube structure are sealed.

4. In paragraph 2, An air tube structure characterized in that the cut portion of the side where the one jacket penetrates the other jacket and the ends of the air tube and the jacket of the air tube structure are sealed.

5. In paragraph 1, An air tube structure characterized in that the jacket is equipped with an inner tube having an outer surface bonded to the inner surface of the jacket.

6. In paragraph 1, An air tube structure characterized in that the jacket assembly and the air tube correspond one-to-one to form a basic unit of an air tube structure, and a plurality of basic units of the air tube structure are provided and are combined with each other to form an air tube structure.

7. In paragraph 6, The basic unit of the above air tube structure is an air tube structure characterized in that a plurality of types are provided, with various types of jacket combinations and corresponding air tubes.

8. In paragraph 6, An air tube structure characterized in that the end of one tube of the air tube of the basic unit of one of the above air tube structures and the end of one tube of the air tube of the basic unit of another of the above air tube structures are joined to each other, and the portion of the tubes joined to each other that protrudes beyond the jacket of the jacket assembly is covered on the outer surface by the jacket.

9. In paragraph 7, An air tube structure characterized in that the end of one tube of the air tube of the basic unit of one of the above air tube structures and the end of one tube of the air tube of the basic unit of another of the above air tube structures are joined to each other, and the portion of the tubes joined to each other that protrudes beyond the jacket of the jacket assembly is covered on the outer surface by the jacket.

10. A jacket assembly characterized in that a plurality of jackets are combined, each jacket having a hollow interior along the longitudinal direction, open ends, and cut portions on its side, and one jacket is combined in such a way that it penetrates the cut portion on the side of another jacket, so that the jackets have a shape in which they intersect each other.

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