Air injection apparatus and functional clothing comprising same

Abstract

Provided according to an embodiment of the present invention is an air injection device. The air injection device includes: a main body part which includes a first fabric and a second fabric arranged to face each other, and is formed by bonding at least a portion of the periphery of the first fabric and at least a portion of the periphery of the second fabric to accommodate air inside; an air inlet part which is formed by not bonding the first and second fabrics so that at least a portion of the top of the main body part is opened to allow inflow of the air into the main body part; and a discharge part which is formed at the bottom of the main body part to discharge the air accommodated in the main body part, wherein when the first fabric and the second fabric are in close contact with each other inside the air inlet part, a coupling part is formed to at least partially seal the air inlet part.

Description

Technical Field

[0001] The present invention relates to an air injection device and functional clothing including the same, and more specifically, to an air injection device, which can easily inject air into air accommodation parts formed in clothing, and functional clothing including the air injection device.Background Art

[0002] Air injection devices are used in various mediums, such as knee protectors, body shaping pads, belly bands, life vests, rubber tubes, and wrist protectors, to easily inject and discharge air to the mediums.

[0003] However, conventional air injection devices have a limitation in the amount of air that a user can blow in, so the user needs considerable effort and more time to fully inflate an air tube.

[0004] Meanwhile, such air injection devices are used in conjunction with functional clothing, thereby allowing the injection of air into specific areas of the clothing to create cushioning. However, conventional functional clothing has caused inconvenience to users, as the user has to carry the air injection device to inject air after attaching or detaching the air injection device if necessary.Disclosure Technical Problem

[0005] Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the related art, and it is an object of the present invention to provide an air injection device, which can easily inject air into air accommodation parts formed in clothing, and functional clothing including the air injection device.

[0006] The aspects of the present invention are not limited to those mentioned above, and other aspects not mentioned herein will be clearly understood by those skilled in the art from the following description.Technical Solution

[0007] To accomplish the above-mentioned objects, according to the present invention, there is provided an air injection device including: a main body part which includes a first fabric and a second fabric arranged to face each other, and is formed by bonding at least a portion of the periphery of the first fabric and at least a portion of the periphery of the second fabric to accommodate air inside; an air inlet part which is formed by not bonding the first and second fabrics so that at least a portion of the top of the main body part is opened to allow inflow of the air into the main body part; and a discharge part which is formed at the bottom of the main body part to discharge the air accommodated in the main body part, wherein when the first fabric and the second fabric are in close contact with each other inside the air inlet part, a coupling part is formed to at least partially seal the air inlet part.

[0008] Moreover, a sealing part where the first and second fabrics are bonded on both sides of the air inlet part is formed at the top of the main body part, and the first fabric and the second fabric extend upward from the sealing part, such that the air inlet part is formed.

[0009] Furthermore, the coupling part includes at least one of a magnetic member, a zipper member, an adhesive member, or a strap member provided on each of the first and second fabrics.

[0010] Additionally, the coupling part is formed to have a predetermined length corresponding to the width of the air inlet part.

[0011] In addition, when a user accommodates air into the inside of the main body part through the air inlet part and pressurizes the main body part, the volume of the main body part decreases, and the air accommodated in the main body part is discharged through the discharge part.

[0012] Moreover, the main body part is decreased in volume when a user grasps the top of the main body part and rolls at least a portion of the main body part towards the discharge part.

[0013] Furthermore, the discharge part includes: a communication part which includes at least one communication hole communicating with the inside of the main body part to move the air accommodated in the main body part outwards; and a valve part of which at least a portion is in close contact with or spaced apart from the outer surface of the communication part to seal or open the communication hole.

[0014] Additionally, the air injection device further includes at least one gripping part which protrudes upward from at least one area of the top of the air inlet part, wherein the user opens the air inlet part by gripping the gripping part and separating the first fabric from the second fabric.

[0015] In addition, the gripping part includes a first grip part provided on the first fabric and a second grip part provided on the second fabric, and the first gripping part and the second gripping part are formed on opposite ends in the width direction of the air inlet part.

[0016] Moreover, a converging part which is decreased in the internal area from the air inlet part towards the discharge part to guide the air accommodated in the main body part towards the discharge part is formed in one area of the main body part.

[0017] In another aspect of the present invention, there is provided functional clothing including: the air injection device; and a plurality of air accommodation parts to which the air injection device is connected, and which accommodate air injected through the air injection device.

[0018] Additionally, the clothing includes a pocket part in which the air injection device is accommodated, and the discharge part of the air injection device is connected to at least one of the air accommodation parts through one area of the inner surface thereof.

[0019] In addition, the air injection device is accommodated in the pocket part in a rolled or folded state.Advantageous Effect

[0020] According to the present invention, the air injection device is formed through fabric, and can inject air in a simple manner that allows the user to blow air into the inside of the fabric and roll and compress the fabric, thereby increasing user convenience.

[0021] Moreover, according to the present invention, the air injection device can more quickly inflate the clothing to the maximum extent even if the user blows air into the air injection device with less force and fewer attempts.

[0022] Furthermore, according to the present invention, the air injection device can prevent the escape of air accommodated in the main body part by sealing the air inlet part through the sealing part and the coupling part.

[0023] Moreover, according to the present invention, the air injection device can control the movement of air accommodated in the main body part only when the user presses the air injection device through the valve part of the discharge part.

[0024] In addition, according to the present invention, the air injection device can be conveniently carried inside a pocket without being separated from the clothing since having a small volume.Description of Drawings

[0025] For a better understanding of the drawings cited in the detailed description of the present invention, a brief description of each drawing will be provided. FIGS. 1 and 2 illustrate an air injection device according to an embodiment of the present invention. FIG. 3 illustrates functional clothing according to an embodiment of the present invention. FIGS. 4 and 5 illustrate an air injection device according to another embodiment of the present invention. FIGS. 6a and 6b are sectional views illustrating compartmentalized air accommodation parts of the functional clothing according to another embodiment of the present invention. FIGS. 7a, 7b, and 7c are illustrative diagrams of a film which compartmentalizes the air accommodation parts of the functional clothing according to another embodiment of the present invention. Best Mode

[0026] Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the attached drawings. Additionally, methods of configuring and using a device according to an embodiment of the present invention are described in detail with reference to the attached drawings. The same reference numbers or symbols presented in each drawing represent parts or components that perform substantially the same functions. For convenience in the description below, upward, downward, leftward, and rightward directions are based on the drawings, and the scope of the present invention is not limited to the directions.

[0027] Terms including ordinal numbers such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one component from another. For example, without departing from the scope of rights of the present invention, a first component can be named a second component, and similarly, a second component can also be named a first component. The term "and / or" includes any and all combinations of one or more of the related items.

[0028] The terms used in this specification are for the purpose of describing particular embodiments and are not intended to limit or confine the present invention. Unless the context clearly dictates otherwise, singular expressions include plural expressions. It will be understood that the terms "include" or "have", etc. when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components, and / or combinations of them but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0029] Throughout this specification, when a part is referred to as being "connected" to another part, this includes "direct connection" and "indirect connection" via an intervening part. Also, when a certain part "includes" a certain component, other components are not excluded unless explicitly described otherwise, and other components may in fact be included.

[0030] FIGS. 1 and 2 illustrate an air injection device according to an embodiment of the present invention.

[0031] Referring to FIGS. 1 and 2, the air injection device 100 may include a main body part 110, an air inlet part 120, and an discharge part 130.

[0032] The main body part 110 accommodates air inside and can move the inside air by being deformed in shape according to a user's pressure. For this purpose, the main body part 110 is made of a soft material that can be deformed in shape. In an embodiment, the main body part 110 includes a first fabric and a second fabric arranged to face each other, and at least a portion of the periphery of the first fabric and at least a portion of the periphery of the second fabric are bonded to accommodate air inside. To accommodate air inside, the main body part 110 can be formed to have sufficient volume and length.

[0033] In an embodiment, at least one area of the periphery of the first fabric and at least one area of the periphery of the second fabric may have an air-impermeable polymer film coating layer. Through this, the first and second fabrics can prevent the inside air of the main body part 110 from leaking outside.

[0034] When the user accommodates air into the inside of the main body part 110 through the air inlet part 120, and then compresses the main body part 110, the volume of the main body part 110 can decrease. For example, the user presses the main body 110 in a method that the user grasps the top of the main body part 110 and rolls or folds at least a portion of the main body part 110 toward the discharge part 130 to reduce the volume of the main body part 110. In this instance, while the volume of the main body part 110 decreases, the air accommodated in the main body part 110 can be discharged to the outside through the discharge part 130.

[0035] In an embodiment, a sealing part 111 where the first and second fabrics are bonded on both sides of the air inlet part 120 can be formed at the top of the main body part 110. If the entire top of the main body part 110 is opened, when the user blows air into the inside of the main body part 110 through the air inlet part 120, some or all of the air blown in by the user or accommodated inside the main body part 110 may leak through the open top of the main body part 110. The sealing part 111 can minimize the amount of leaking air by only partially opening the top of the main body part 110.

[0036] In an embodiment, as illustrated in FIGS. 1 and 2, the sealing part 111 can be formed by bonding the first and second fabrics on both sides of the air inlet part 120, but is not limited thereto, and can also be formed by bonding the first and second fabrics on one side of the air inlet part 120.

[0037] In an area of the main body part 110, a converging part 112 can be formed to guide the air accommodated in the main body part 110 to move towards the discharge part 130. For this purpose, the converging part 112 can be formed in a shape where the internal area or width decreases from the air inlet part 120 towards the discharge part 130. Through this, the air accommodated in the main body part 110 can become more concentrated as it moves from the air inlet part 120 towards the discharge part 130, thereby allowing the air to move more efficiently through the discharge part 130.

[0038] The air inlet part 120 can allow air to enter the inside of the main body part 110. For example, the air inlet part 120 can be formed by not bonding the first and second fabrics so that at least a portion of the top of the main body part 110 is opened. Alternatively, for example, the air inlet part 120 can be formed by extending the first and second fabrics upwards from the sealing part 111 of the main body part 110.

[0039] In an embodiment, before opening the air inlet part 120, air is not accommodated inside the main body part 110, so when the air inlet part 120 is opened at low pressure, the outside air can momentarily flow into the inside of the main body part 110, which has relatively lower pressure. Through this, even if the user blows air with less force and fewer attempts, the volume of the main body part 110 can rapidly increase.

[0040] Inside the air inlet part 120, a coupling part 121 may be formed to at least partially seal the air inlet part 120 by contacting the first and second fabrics. The user blows air into the inside of the main body part 110 through the air inlet part 120, and then, seals the air inlet part 120 through the coupling part 121, thereby preventing the escape of the air accommodated in the main body part 110.

[0041] In an embodiment, the coupling part 121 may include at least one of a magnetic member, a zipper member, an adhesive member, or a strap member provided on each of the first and second fabrics, but is not limited thereto, and can be composed of various members capable of bringing the first and second fabrics into contact, such as a Velcro-type tape, a zipper, etc.

[0042] In an embodiment, the coupling part 121 may be formed to have a predetermined length corresponding to the width of the air inlet part 120, thereby allowing more efficient sealing of the air inlet part 120. For example, the magnetic member or other components forming the coupling part 121 may be formed to a predetermined length, such that the user can more easily compress the main body part 110 by gripping the coupling part 121 and rolling the main body part 110 around the center of the coupling part 121 when rolling the main body part 110.

[0043] The discharge part 130 is formed at the bottom of the main body part 110 and communicates with the main body part 110 to discharge air accommodated in the main body part 110 to the outside. In an embodiment, the discharge part 130 can be connected to various types of mediums requiring air intake, such as clothing, air pumps, protectors, belly bands, life vests, tubes, etc., thereby communicating the mediums with the inside of the main body part 110. Through the discharge part 130, the air accommodated in the main body part 110 can be injected into the inside of the mediums.

[0044] The discharge part 130 may include a communication part 131 and a valve part 132.

[0045] The communication part 131 communicates with the inside of the main body part 110 and can move the air accommodated in the main body part 110 to the outside. For this purpose, at least one communication hole 131-1 through which the air accommodated in the main body part 110 moves may be formed in the communication part 131.

[0046] The valve part 132 can control the movement of air between the object, such as clothing combined with the air injection device 100, and the main body part 110. For example, when the user injects air into the air injection device 100 and then compresses the main body part 110, the valve part 132 can open the communication part 131 by being spaced from the outer surface of the communication part 131, thereby opening the communication hole 131-1. Accordingly, the air accommodated in the main body part 110 can be injected into the inside of the target object. Additionally, for example, once the injection of air into the inside of the target object is completed, the valve part 132 can seal the communication hole 131-1 by being in contact with the outer surface of the communication part 131. Therefore, the present invention can prevent the air accommodated inside the target object from leaking outside through the discharge part 130.

[0047] In an embodiment, the valve part 132 may be made of a soft material that can be deformed according to the user's compression of the main body part 110. For example, the valve part 132 can be made of silicone, polyester, polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polyethylene terephthalate glycol, polycarbonate, polyacrylate, polystyrene, acrylonitrile butadiene styrene, nylon, polyurethane, or a combination thereof, but is not limited thereto.

[0048] The air injection device 100 according to FIGS. 1 and 2 is exemplary, and various configurations may be applied according to embodiments in which the present invention is applied.

[0049] FIG. 3 illustrates functional clothing according to an embodiment of the present invention.

[0050] Specifically, FIG. 3(a) illustrates functional clothing 1000 in a state in which air is discharged from a garment 200, with air discharged from the garment 200, and FIG. 3(b) illustrates functional clothing 1000 in a state in which air is injected into the garment 200.

[0051] Referring to FIG. 3, the functional clothing 1000 may include an air injection device 100 and a garment 200.

[0052] The garment 200 can be formed with a plurality of fabric materials in the shape of tops or bottoms that the user can wear. However, the garment 200 is not limited thereto, and can include all types of clothes or accessories formed with fabrics.

[0053] The garment 200 may be connected with the air injection device 100, and may include a plurality of air accommodation parts 210 that accommodate air inside. As described above, when the user opens the air inlet part 120 of the air injection device 100, allows air to be accommodated inside the main body part 110, and then compresses the main body part 110 by rolling or folding the main body part 110, air can be injected into the air accommodation parts 210 through the air injection device 100. Accordingly, the garment 200 can have a cushioning effect in an area of the garment 200, and perform a heat-retaining function.

[0054] For example, the garment 200 may include a third fabric and a fourth fabric arranged to face each other in at least one area, and the air accommodation parts 210 may be formed between the third and fourth fabrics. Additionally, for example, the air accommodation parts 210 can be formed in all areas of the garment 200, but are not limited thereto, and can be formed in certain areas as needed for joint protection, impact absorption, posture support, or heat retention.

[0055] In an embodiment, at least one area of the third and / or fourth fabric may be formed with an air-impermeable polymer film coating layer. Through this, the third and fourth fabrics can prevent the inside air of the air accommodation parts 210 from leaking outside and can perform a shielding function, such as preventing the user from being exposed to external moisture, water, or wind.

[0056] Around the air accommodation parts 210, at least one first area 211 formed by joining the third and fourth fabrics and at least one second area 212 formed by non-joining of the third and fourth fabrics may be formed.

[0057] The first area 211 can compartmentalize the air accommodation parts 210 from other air accommodation parts 210. As illustrated in FIG. 6a, polymer film coating layers may be formed on the facing surfaces of the third and fourth fabrics, and the first area 211 can be formed by fusing at least one area of the third and fourth fabrics through at least one of the methods such as thermal fusion, high-frequency fusion, and ultrasonic fusion. That is, when the third and fourth fabrics are heated and pressurized, the polymer film coating layers are melt, and the third and fourth fabrics are joined together, thereby forming the first area 211. However, the first area is not limited thereto, and various modifications can be made, such as forming the polymer film coating layer on only one surface of the third or fourth fabric. The fusion method is just an example, and the present invention is not limited thereto. Additionally, for example, a plurality of first areas 211 may be formed at regular intervals with a predetermined length, but they are not limited thereto and can have various intervals or lengths.

[0058] In another embodiment, as illustrated in FIG. 6b, the first area 211 may include a film 2111 to compartmentalize the air accommodation parts 210 from each other. For example, polymer film coating layers 400 may be respectively formed on the facing surfaces of the third and fourth fabrics, and the first area 211 can be formed by thermal fusion of the film 2111 to at least one area of the third fabric and at least one area of the fourth fabric. Additionally, the film 2111 can be joined to the third and fourth fabrics using adhesive or other arbitrary adhesive means. In another embodiment, the first area 211 compartmentalizing the air accommodation parts by the film 2111 can be extended, thereby increasing the air accommodation capacity of the air accommodation parts 210.

[0059] As illustrated in FIGS. 7a, 7b, and 7c, the film 2111 of the first area 211 may include air permeable means 2112 and 2113 to allow air to flow between the air accommodation parts 210. FIGS. 7a, 7b, and 7c illustrate the film portion (dotted circle area in FIG. 6b) in detail. Additionally, the film 2111 may be made of a porous material that allows air to pass through. The air permeable means 2112 and 2113 illustrated in FIGS. 7b and 7c allow air to flow between the air accommodation parts 210, thereby ensuring uniform air accommodation in the air accommodation parts 210, helping to maintain the shape of the clothing, and allowing a wearer to move more freely. The air permeable means 2112 and 2113 can be configured, for example, to have an area without film as in reference number 2112, or to have holes 2113 formed in the film 2111, which allow air to pass through.

[0060] The width of the film 2111 constituting the thickness of the first area 211 may vary depending on the area of the clothing. For example, the volume of the air accommodation parts 210, which includes the third fabric, the fourth fabric, and the film 2111, can vary depending on the width of the film 2111. For instance, if the width of the film 2111 is relatively wide, the volume of the air accommodation parts 210, which includes the third fabric, the fourth fabric, and the film 2111, can be relatively large and can have higher thermal insulation and cushioning. Conversely, if the width of the film 2111 is relatively narrow, the volume of the air accommodation parts 210, which includes the third fabric, the fourth fabric, and the film 2111, can be relatively small, and can enhance the wearer's ease of movement. For example, in areas of the garment 200 that require higher insulation and where the movement by the wearer is small, the first area 211 can include the film 2111 which is relatively thick. Furthermore, in areas related to the wearer's ease of movement, such as areas corresponding to the wearer's joints, the first area 211 can include the film 2111 which is relatively thin. The overall thickness of the film 2111 can be determined based on the insulation of the garment 200. The second area 212 can enable air communication between one air accommodation part 210 and another adjacent air accommodation part 210. For example, the second area 212 can be formed between at least some of the plurality of first areas 211. When air is injected into the garment 200 through the air injection device 100, air can be sequentially or simultaneously transmitted to the plurality of air accommodation parts 210 through the second area 212. For instance, the air injected into the first air accommodation part from the air injection device 100 can be transferred to at least one second air accommodation part formed adjacent to the first air accommodation part through the second area 212, and subsequently to at least one third air accommodation part adjacent to that, in a sequential or simultaneous manner.

[0061] The garment 200 may include a pocket part 220 in which the air injection device 100 can be detachably mounted inside. For example, when at least a portion of the periphery of fabric overlaid is joined to one surface of the garment 200, the pocket part 220 having an accommodating space can be formed inside. The top of the pocket part 220 may have an opened area to expose the air injection device 100, which is accommodated inside, above the top of the open area.

[0062] In an embodiment, the pocket part 220 can be equipped with the air injection device 100 so that the inside of the main body part 110 of the air injection device 100 communicates with the air accommodation part 210. For this purpose, the discharge part 130 of the air injection device 100 can be connected to one of the plurality of air accommodation parts 210 through one area of the inner surface of the pocket part 220.

[0063] In an embodiment, the air injection device 100 (i.e., the main body part 110), which is in the rolled or folded and compressed state, can be accommodated inside the the pocket part 220. Through this, the user can conveniently carry the air injection device 100 in small volume and size without separating the air injection device 100 from the garment 200, and can use the air injection device 100 irrespective of place and time, thereby facilitating portability and convenience of use.

[0064] In the embodiment, the pocket part 220, as illustrated in FIG. 3, can be provided on the outer surface of the garment 200, but is not limited thereto, and may be provided on the inner surface of the garment 200, or on both the outer and inner surfaces. In addition, the pocket part 220 can be provided at the bottom of the torso area of the garment 200, but is not limited thereto, and can be provided in various areas, such as the torso, the shoulder, or arm areas of the garment 200.

[0065] The functional clothing 1000 according to FIG. 3 is exemplary, and various configurations can be applied depending on the embodiments in which the present invention is applied.

[0066] FIGS. 4 and 5 illustrate an air injection device according to another embodiment of the invention.

[0067] Referring to FIGS. 4 and 5, the air injection device 100' may include a main body part 110, an air inlet part 120, an discharge part 130, and a gripping part 140. Here, the main body part 110, the air inlet part 120, and the discharge part 130 can be described in the same manner as the air injection device 100 in FIGS. 1 and 2.

[0068] The gripping part 140 can be used by the user to open the air inlet part 120 by separating the first fabric and the second fabric. For this purpose, the gripping part 140 can protrude upwards from at least one area of the top of the air inlet part 120. For example, the gripping part 140 can be formed on both the first and second fabrics, but is not limited thereto and can be formed on only one of the first and second fabrics. Additionally, for example, the gripping part 140 can be formed only in one area of the top of the air inlet part 120, or across the entire top area of the air inlet part 120, but is not limited thereto, and can include any shape that protrudes upwards enough for the user to grip.

[0069] In the embodiment, the gripping part 140 may include a first gripping part 141 provided on the first fabric and a second gripping part 142 provided on the second fabric. The first gripping part 141 and the second gripping part 142 can be formed respectively on opposite ends in the width direction of the air inlet part 120 so that they correspond to each other. Accordingly, the user can more easily separate the first fabric and the second fabric by gripping the first gripping part 141 and the second gripping part 142.

[0070] In the embodiment, the first gripping part 141 may be formed in one area of the top of the first fabric of the air inlet part 120, and a first opening part may be formed in the other area of the top of the first fabric. Moreover, correspondingly, the second gripping part 142 may be formed in one area of the top of the second fabric of the air inlet part 120, and a second opening part may be formed in the other area of the top of the second fabric. For example, the first and second opening parts can be formed by configuring the tops of the first and second fabrics to protrude less upwards than the first gripping part 141 and the second gripping part 142. As a result, the first gripping part 141 is exposed from the side of the second fabric by the second opening part, and the second gripping part 142 is exposed from the side of the first fabric by the first opening part, so that the user can more easily grip the first gripping part 141 and the second gripping part 142 to open the air inlet part 120.

[0071] The air injection device 100' according to FIGS. 4 and 5 is exemplary, and various configurations can be applied depending on the embodiments in which the present invention is applied.

[0072] As described above, the optimal embodiments have been disclosed in the drawings and specification. Here, specific terms have been used, but they are used only for the purpose of describing the present invention and are not intended to limit the scope of the invention as defined in the patent claims. Therefore, it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the technical scope of the present invention should be determined by the technical spirit of the attached claims.[Sequence List Text]

[0073] 100, 100': air injection device 110: main body part 111: sealing part 112: converging part 120: air inlet part 121: coupling part 130: discharge part 131: communication part 131-1: communication hole 132: valve part 140: gripping part 141: first gripping part 142: second gripping part 200: garment 210: air accommodation part 211: first area 212: second area 220: pocket part 1000: functional clothing Mode for Invention

[0074] As described above, the best mode for carrying out the invention has been detailed.Industrial Applicability

[0075] The present invention can be used in functional clothing and the like.

Examples

Embodiment Construction

[0026]Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the attached drawings. Additionally, methods of configuring and using a device according to an embodiment of the present invention are described in detail with reference to the attached drawings. The same reference numbers or symbols presented in each drawing represent parts or components that perform substantially the same functions. For convenience in the description below, upward, downward, leftward, and rightward directions are based on the drawings, and the scope of the present invention is not limited to the directions.

[0027]Terms including ordinal numbers such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one component from another. For example, without departing from the scope of rights of the present invention, a first component can be named a se...

Technical Field

[0001] The present invention relates to an air injection device and functional clothing including the same, and more specifically, to an air injection device, which can easily inject air into air accommodation parts formed in clothing, and functional clothing including the air injection device.Background Art

[0002] Air injection devices are used in various mediums, such as knee protectors, body shaping pads, belly bands, life vests, rubber tubes, and wrist protectors, to easily inject and discharge air to the mediums.

[0003] However, conventional air injection devices have a limitation in the amount of air that a user can blow in, so the user needs considerable effort and more time to fully inflate an air tube.

[0004] Meanwhile, such air injection devices are used in conjunction with functional clothing, thereby allowing the injection of air into specific areas of the clothing to create cushioning. However, conventional functional clothing has caused inconvenience to users, as the user has to carry the air injection device to inject air after attaching or detaching the air injection device if necessary.Disclosure Technical Problem

[0005] Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the related art, and it is an object of the present invention to provide an air injection device, which can easily inject air into air accommodation parts formed in clothing, and functional clothing including the air injection device.

[0006] The aspects of the present invention are not limited to those mentioned above, and other aspects not mentioned herein will be clearly understood by those skilled in the art from the following description.Technical Solution

[0007] To accomplish the above-mentioned objects, according to the present invention, there is provided an air injection device including: a main body part which includes a first fabric and a second fabric arranged to face each other, and is formed by bonding at least a portion of the periphery of the first fabric and at least a portion of the periphery of the second fabric to accommodate air inside; an air inlet part which is formed by not bonding the first and second fabrics so that at least a portion of the top of the main body part is opened to allow inflow of the air into the main body part; and a discharge part which is formed at the bottom of the main body part to discharge the air accommodated in the main body part, wherein when the first fabric and the second fabric are in close contact with each other inside the air inlet part, a coupling part is formed to at least partially seal the air inlet part.

[0008] Moreover, a sealing part where the first and second fabrics are bonded on both sides of the air inlet part is formed at the top of the main body part, and the first fabric and the second fabric extend upward from the sealing part, such that the air inlet part is formed.

[0009] Furthermore, the coupling part includes at least one of a magnetic member, a zipper member, an adhesive member, or a strap member provided on each of the first and second fabrics.

[0010] Additionally, the coupling part is formed to have a predetermined length corresponding to the width of the air inlet part.

[0011] In addition, when a user accommodates air into the inside of the main body part through the air inlet part and pressurizes the main body part, the volume of the main body part decreases, and the air accommodated in the main body part is discharged through the discharge part.

[0012] Moreover, the main body part is decreased in volume when a user grasps the top of the main body part and rolls at least a portion of the main body part towards the discharge part.

[0013] Furthermore, the discharge part includes: a communication part which includes at least one communication hole communicating with the inside of the main body part to move the air accommodated in the main body part outwards; and a valve part of which at least a portion is in close contact with or spaced apart from the outer surface of the communication part to seal or open the communication hole.

[0014] Additionally, the air injection device further includes at least one gripping part which protrudes upward from at least one area of the top of the air inlet part, wherein the user opens the air inlet part by gripping the gripping part and separating the first fabric from the second fabric.

[0015] In addition, the gripping part includes a first grip part provided on the first fabric and a second grip part provided on the second fabric, and the first gripping part and the second gripping part are formed on opposite ends in the width direction of the air inlet part.

[0016] Moreover, a converging part which is decreased in the internal area from the air inlet part towards the discharge part to guide the air accommodated in the main body part towards the discharge part is formed in one area of the main body part.

[0017] In another aspect of the present invention, there is provided functional clothing including: the air injection device; and a plurality of air accommodation parts to which the air injection device is connected, and which accommodate air injected through the air injection device.

[0018] Additionally, the clothing includes a pocket part in which the air injection device is accommodated, and the discharge part of the air injection device is connected to at least one of the air accommodation parts through one area of the inner surface thereof.

[0019] In addition, the air injection device is accommodated in the pocket part in a rolled or folded state.Advantageous Effect

[0020] According to the present invention, the air injection device is formed through fabric, and can inject air in a simple manner that allows the user to blow air into the inside of the fabric and roll and compress the fabric, thereby increasing user convenience.

[0021] Moreover, according to the present invention, the air injection device can more quickly inflate the clothing to the maximum extent even if the user blows air into the air injection device with less force and fewer attempts.

[0022] Furthermore, according to the present invention, the air injection device can prevent the escape of air accommodated in the main body part by sealing the air inlet part through the sealing part and the coupling part.

[0023] Moreover, according to the present invention, the air injection device can control the movement of air accommodated in the main body part only when the user presses the air injection device through the valve part of the discharge part.

[0024] In addition, according to the present invention, the air injection device can be conveniently carried inside a pocket without being separated from the clothing since having a small volume.Description of Drawings

[0025] For a better understanding of the drawings cited in the detailed description of the present invention, a brief description of each drawing will be provided. FIGS. 1 and 2 illustrate an air injection device according to an embodiment of the present invention. FIG. 3 illustrates functional clothing according to an embodiment of the present invention. FIGS. 4 and 5 illustrate an air injection device according to another embodiment of the present invention. FIGS. 6a and 6b are sectional views illustrating compartmentalized air accommodation parts of the functional clothing according to another embodiment of the present invention. FIGS. 7a, 7b, and 7c are illustrative diagrams of a film which compartmentalizes the air accommodation parts of the functional clothing according to another embodiment of the present invention. Best Mode

[0026] Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the attached drawings. Additionally, methods of configuring and using a device according to an embodiment of the present invention are described in detail with reference to the attached drawings. The same reference numbers or symbols presented in each drawing represent parts or components that perform substantially the same functions. For convenience in the description below, upward, downward, leftward, and rightward directions are based on the drawings, and the scope of the present invention is not limited to the directions.

[0027] Terms including ordinal numbers such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one component from another. For example, without departing from the scope of rights of the present invention, a first component can be named a second component, and similarly, a second component can also be named a first component. The term "and / or" includes any and all combinations of one or more of the related items.

[0028] The terms used in this specification are for the purpose of describing particular embodiments and are not intended to limit or confine the present invention. Unless the context clearly dictates otherwise, singular expressions include plural expressions. It will be understood that the terms "include" or "have", etc. when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components, and / or combinations of them but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0029] Throughout this specification, when a part is referred to as being "connected" to another part, this includes "direct connection" and "indirect connection" via an intervening part. Also, when a certain part "includes" a certain component, other components are not excluded unless explicitly described otherwise, and other components may in fact be included.

[0030] FIGS. 1 and 2 illustrate an air injection device according to an embodiment of the present invention.

[0031] Referring to FIGS. 1 and 2, the air injection device 100 may include a main body part 110, an air inlet part 120, and an discharge part 130.

[0032] The main body part 110 accommodates air inside and can move the inside air by being deformed in shape according to a user's pressure. For this purpose, the main body part 110 is made of a soft material that can be deformed in shape. In an embodiment, the main body part 110 includes a first fabric and a second fabric arranged to face each other, and at least a portion of the periphery of the first fabric and at least a portion of the periphery of the second fabric are bonded to accommodate air inside. To accommodate air inside, the main body part 110 can be formed to have sufficient volume and length.

[0033] In an embodiment, at least one area of the periphery of the first fabric and at least one area of the periphery of the second fabric may have an air-impermeable polymer film coating layer. Through this, the first and second fabrics can prevent the inside air of the main body part 110 from leaking outside.

[0034] When the user accommodates air into the inside of the main body part 110 through the air inlet part 120, and then compresses the main body part 110, the volume of the main body part 110 can decrease. For example, the user presses the main body 110 in a method that the user grasps the top of the main body part 110 and rolls or folds at least a portion of the main body part 110 toward the discharge part 130 to reduce the volume of the main body part 110. In this instance, while the volume of the main body part 110 decreases, the air accommodated in the main body part 110 can be discharged to the outside through the discharge part 130.

[0035] In an embodiment, a sealing part 111 where the first and second fabrics are bonded on both sides of the air inlet part 120 can be formed at the top of the main body part 110. If the entire top of the main body part 110 is opened, when the user blows air into the inside of the main body part 110 through the air inlet part 120, some or all of the air blown in by the user or accommodated inside the main body part 110 may leak through the open top of the main body part 110. The sealing part 111 can minimize the amount of leaking air by only partially opening the top of the main body part 110.

[0036] In an embodiment, as illustrated in FIGS. 1 and 2, the sealing part 111 can be formed by bonding the first and second fabrics on both sides of the air inlet part 120, but is not limited thereto, and can also be formed by bonding the first and second fabrics on one side of the air inlet part 120.

[0037] In an area of the main body part 110, a converging part 112 can be formed to guide the air accommodated in the main body part 110 to move towards the discharge part 130. For this purpose, the converging part 112 can be formed in a shape where the internal area or width decreases from the air inlet part 120 towards the discharge part 130. Through this, the air accommodated in the main body part 110 can become more concentrated as it moves from the air inlet part 120 towards the discharge part 130, thereby allowing the air to move more efficiently through the discharge part 130.

[0038] The air inlet part 120 can allow air to enter the inside of the main body part 110. For example, the air inlet part 120 can be formed by not bonding the first and second fabrics so that at least a portion of the top of the main body part 110 is opened. Alternatively, for example, the air inlet part 120 can be formed by extending the first and second fabrics upwards from the sealing part 111 of the main body part 110.

[0039] In an embodiment, before opening the air inlet part 120, air is not accommodated inside the main body part 110, so when the air inlet part 120 is opened at low pressure, the outside air can momentarily flow into the inside of the main body part 110, which has relatively lower pressure. Through this, even if the user blows air with less force and fewer attempts, the volume of the main body part 110 can rapidly increase.

[0040] Inside the air inlet part 120, a coupling part 121 may be formed to at least partially seal the air inlet part 120 by contacting the first and second fabrics. The user blows air into the inside of the main body part 110 through the air inlet part 120, and then, seals the air inlet part 120 through the coupling part 121, thereby preventing the escape of the air accommodated in the main body part 110.

[0041] In an embodiment, the coupling part 121 may include at least one of a magnetic member, a zipper member, an adhesive member, or a strap member provided on each of the first and second fabrics, but is not limited thereto, and can be composed of various members capable of bringing the first and second fabrics into contact, such as a Velcro-type tape, a zipper, etc.

[0042] In an embodiment, the coupling part 121 may be formed to have a predetermined length corresponding to the width of the air inlet part 120, thereby allowing more efficient sealing of the air inlet part 120. For example, the magnetic member or other components forming the coupling part 121 may be formed to a predetermined length, such that the user can more easily compress the main body part 110 by gripping the coupling part 121 and rolling the main body part 110 around the center of the coupling part 121 when rolling the main body part 110.

[0043] The discharge part 130 is formed at the bottom of the main body part 110 and communicates with the main body part 110 to discharge air accommodated in the main body part 110 to the outside. In an embodiment, the discharge part 130 can be connected to various types of mediums requiring air intake, such as clothing, air pumps, protectors, belly bands, life vests, tubes, etc., thereby communicating the mediums with the inside of the main body part 110. Through the discharge part 130, the air accommodated in the main body part 110 can be injected into the inside of the mediums.

[0044] The discharge part 130 may include a communication part 131 and a valve part 132.

[0045] The communication part 131 communicates with the inside of the main body part 110 and can move the air accommodated in the main body part 110 to the outside. For this purpose, at least one communication hole 131-1 through which the air accommodated in the main body part 110 moves may be formed in the communication part 131.

[0046] The valve part 132 can control the movement of air between the object, such as clothing combined with the air injection device 100, and the main body part 110. For example, when the user injects air into the air injection device 100 and then compresses the main body part 110, the valve part 132 can open the communication part 131 by being spaced from the outer surface of the communication part 131, thereby opening the communication hole 131-1. Accordingly, the air accommodated in the main body part 110 can be injected into the inside of the target object. Additionally, for example, once the injection of air into the inside of the target object is completed, the valve part 132 can seal the communication hole 131-1 by being in contact with the outer surface of the communication part 131. Therefore, the present invention can prevent the air accommodated inside the target object from leaking outside through the discharge part 130.

[0047] In an embodiment, the valve part 132 may be made of a soft material that can be deformed according to the user's compression of the main body part 110. For example, the valve part 132 can be made of silicone, polyester, polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polyethylene terephthalate glycol, polycarbonate, polyacrylate, polystyrene, acrylonitrile butadiene styrene, nylon, polyurethane, or a combination thereof, but is not limited thereto.

[0048] The air injection device 100 according to FIGS. 1 and 2 is exemplary, and various configurations may be applied according to embodiments in which the present invention is applied.

[0049] FIG. 3 illustrates functional clothing according to an embodiment of the present invention.

[0050] Specifically, FIG. 3(a) illustrates functional clothing 1000 in a state in which air is discharged from a garment 200, with air discharged from the garment 200, and FIG. 3(b) illustrates functional clothing 1000 in a state in which air is injected into the garment 200.

[0051] Referring to FIG. 3, the functional clothing 1000 may include an air injection device 100 and a garment 200.

[0052] The garment 200 can be formed with a plurality of fabric materials in the shape of tops or bottoms that the user can wear. However, the garment 200 is not limited thereto, and can include all types of clothes or accessories formed with fabrics.

[0053] The garment 200 may be connected with the air injection device 100, and may include a plurality of air accommodation parts 210 that accommodate air inside. As described above, when the user opens the air inlet part 120 of the air injection device 100, allows air to be accommodated inside the main body part 110, and then compresses the main body part 110 by rolling or folding the main body part 110, air can be injected into the air accommodation parts 210 through the air injection device 100. Accordingly, the garment 200 can have a cushioning effect in an area of the garment 200, and perform a heat-retaining function.

[0054] For example, the garment 200 may include a third fabric and a fourth fabric arranged to face each other in at least one area, and the air accommodation parts 210 may be formed between the third and fourth fabrics. Additionally, for example, the air accommodation parts 210 can be formed in all areas of the garment 200, but are not limited thereto, and can be formed in certain areas as needed for joint protection, impact absorption, posture support, or heat retention.

[0055] In an embodiment, at least one area of the third and / or fourth fabric may be formed with an air-impermeable polymer film coating layer. Through this, the third and fourth fabrics can prevent the inside air of the air accommodation parts 210 from leaking outside and can perform a shielding function, such as preventing the user from being exposed to external moisture, water, or wind.

[0056] Around the air accommodation parts 210, at least one first area 211 formed by joining the third and fourth fabrics and at least one second area 212 formed by non-joining of the third and fourth fabrics may be formed.

[0057] The first area 211 can compartmentalize the air accommodation parts 210 from other air accommodation parts 210. As illustrated in FIG. 6a, polymer film coating layers may be formed on the facing surfaces of the third and fourth fabrics, and the first area 211 can be formed by fusing at least one area of the third and fourth fabrics through at least one of the methods such as thermal fusion, high-frequency fusion, and ultrasonic fusion. That is, when the third and fourth fabrics are heated and pressurized, the polymer film coating layers are melt, and the third and fourth fabrics are joined together, thereby forming the first area 211. However, the first area is not limited thereto, and various modifications can be made, such as forming the polymer film coating layer on only one surface of the third or fourth fabric. The fusion method is just an example, and the present invention is not limited thereto. Additionally, for example, a plurality of first areas 211 may be formed at regular intervals with a predetermined length, but they are not limited thereto and can have various intervals or lengths.

[0058] In another embodiment, as illustrated in FIG. 6b, the first area 211 may include a film 2111 to compartmentalize the air accommodation parts 210 from each other. For example, polymer film coating layers 400 may be respectively formed on the facing surfaces of the third and fourth fabrics, and the first area 211 can be formed by thermal fusion of the film 2111 to at least one area of the third fabric and at least one area of the fourth fabric. Additionally, the film 2111 can be joined to the third and fourth fabrics using adhesive or other arbitrary adhesive means. In another embodiment, the first area 211 compartmentalizing the air accommodation parts by the film 2111 can be extended, thereby increasing the air accommodation capacity of the air accommodation parts 210.

[0059] As illustrated in FIGS. 7a, 7b, and 7c, the film 2111 of the first area 211 may include air permeable means 2112 and 2113 to allow air to flow between the air accommodation parts 210. FIGS. 7a, 7b, and 7c illustrate the film portion (dotted circle area in FIG. 6b) in detail. Additionally, the film 2111 may be made of a porous material that allows air to pass through. The air permeable means 2112 and 2113 illustrated in FIGS. 7b and 7c allow air to flow between the air accommodation parts 210, thereby ensuring uniform air accommodation in the air accommodation parts 210, helping to maintain the shape of the clothing, and allowing a wearer to move more freely. The air permeable means 2112 and 2113 can be configured, for example, to have an area without film as in reference number 2112, or to have holes 2113 formed in the film 2111, which allow air to pass through.

[0060] The width of the film 2111 constituting the thickness of the first area 211 may vary depending on the area of the clothing. For example, the volume of the air accommodation parts 210, which includes the third fabric, the fourth fabric, and the film 2111, can vary depending on the width of the film 2111. For instance, if the width of the film 2111 is relatively wide, the volume of the air accommodation parts 210, which includes the third fabric, the fourth fabric, and the film 2111, can be relatively large and can have higher thermal insulation and cushioning. Conversely, if the width of the film 2111 is relatively narrow, the volume of the air accommodation parts 210, which includes the third fabric, the fourth fabric, and the film 2111, can be relatively small, and can enhance the wearer's ease of movement. For example, in areas of the garment 200 that require higher insulation and where the movement by the wearer is small, the first area 211 can include the film 2111 which is relatively thick. Furthermore, in areas related to the wearer's ease of movement, such as areas corresponding to the wearer's joints, the first area 211 can include the film 2111 which is relatively thin. The overall thickness of the film 2111 can be determined based on the insulation of the garment 200. The second area 212 can enable air communication between one air accommodation part 210 and another adjacent air accommodation part 210. For example, the second area 212 can be formed between at least some of the plurality of first areas 211. When air is injected into the garment 200 through the air injection device 100, air can be sequentially or simultaneously transmitted to the plurality of air accommodation parts 210 through the second area 212. For instance, the air injected into the first air accommodation part from the air injection device 100 can be transferred to at least one second air accommodation part formed adjacent to the first air accommodation part through the second area 212, and subsequently to at least one third air accommodation part adjacent to that, in a sequential or simultaneous manner.

[0061] The garment 200 may include a pocket part 220 in which the air injection device 100 can be detachably mounted inside. For example, when at least a portion of the periphery of fabric overlaid is joined to one surface of the garment 200, the pocket part 220 having an accommodating space can be formed inside. The top of the pocket part 220 may have an opened area to expose the air injection device 100, which is accommodated inside, above the top of the open area.

[0062] In an embodiment, the pocket part 220 can be equipped with the air injection device 100 so that the inside of the main body part 110 of the air injection device 100 communicates with the air accommodation part 210. For this purpose, the discharge part 130 of the air injection device 100 can be connected to one of the plurality of air accommodation parts 210 through one area of the inner surface of the pocket part 220.

[0063] In an embodiment, the air injection device 100 (i.e., the main body part 110), which is in the rolled or folded and compressed state, can be accommodated inside the the pocket part 220. Through this, the user can conveniently carry the air injection device 100 in small volume and size without separating the air injection device 100 from the garment 200, and can use the air injection device 100 irrespective of place and time, thereby facilitating portability and convenience of use.

[0064] In the embodiment, the pocket part 220, as illustrated in FIG. 3, can be provided on the outer surface of the garment 200, but is not limited thereto, and may be provided on the inner surface of the garment 200, or on both the outer and inner surfaces. In addition, the pocket part 220 can be provided at the bottom of the torso area of the garment 200, but is not limited thereto, and can be provided in various areas, such as the torso, the shoulder, or arm areas of the garment 200.

[0065] The functional clothing 1000 according to FIG. 3 is exemplary, and various configurations can be applied depending on the embodiments in which the present invention is applied.

[0066] FIGS. 4 and 5 illustrate an air injection device according to another embodiment of the invention.

[0067] Referring to FIGS. 4 and 5, the air injection device 100' may include a main body part 110, an air inlet part 120, an discharge part 130, and a gripping part 140. Here, the main body part 110, the air inlet part 120, and the discharge part 130 can be described in the same manner as the air injection device 100 in FIGS. 1 and 2.

[0068] The gripping part 140 can be used by the user to open the air inlet part 120 by separating the first fabric and the second fabric. For this purpose, the gripping part 140 can protrude upwards from at least one area of the top of the air inlet part 120. For example, the gripping part 140 can be formed on both the first and second fabrics, but is not limited thereto and can be formed on only one of the first and second fabrics. Additionally, for example, the gripping part 140 can be formed only in one area of the top of the air inlet part 120, or across the entire top area of the air inlet part 120, but is not limited thereto, and can include any shape that protrudes upwards enough for the user to grip.

[0069] In the embodiment, the gripping part 140 may include a first gripping part 141 provided on the first fabric and a second gripping part 142 provided on the second fabric. The first gripping part 141 and the second gripping part 142 can be formed respectively on opposite ends in the width direction of the air inlet part 120 so that they correspond to each other. Accordingly, the user can more easily separate the first fabric and the second fabric by gripping the first gripping part 141 and the second gripping part 142.

[0070] In the embodiment, the first gripping part 141 may be formed in one area of the top of the first fabric of the air inlet part 120, and a first opening part may be formed in the other area of the top of the first fabric. Moreover, correspondingly, the second gripping part 142 may be formed in one area of the top of the second fabric of the air inlet part 120, and a second opening part may be formed in the other area of the top of the second fabric. For example, the first and second opening parts can be formed by configuring the tops of the first and second fabrics to protrude less upwards than the first gripping part 141 and the second gripping part 142. As a result, the first gripping part 141 is exposed from the side of the second fabric by the second opening part, and the second gripping part 142 is exposed from the side of the first fabric by the first opening part, so that the user can more easily grip the first gripping part 141 and the second gripping part 142 to open the air inlet part 120.

[0071] The air injection device 100' according to FIGS. 4 and 5 is exemplary, and various configurations can be applied depending on the embodiments in which the present invention is applied.

[0072] As described above, the optimal embodiments have been disclosed in the drawings and specification. Here, specific terms have been used, but they are used only for the purpose of describing the present invention and are not intended to limit the scope of the invention as defined in the patent claims. Therefore, it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the technical scope of the present invention should be determined by the technical spirit of the attached claims.[Sequence List Text]

[0073] 100, 100': air injection device 110: main body part 111: sealing part 112: converging part 120: air inlet part 121: coupling part 130: discharge part 131: communication part 131-1: communication hole 132: valve part 140: gripping part 141: first gripping part 142: second gripping part 200: garment 210: air accommodation part 211: first area 212: second area 220: pocket part 1000: functional clothing Mode for Invention

[0074] As described above, the best mode for carrying out the invention has been detailed.Industrial Applicability

[0075] The present invention can be used in functional clothing and the like.

Examples

Embodiment Construction

[0026]Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the attached drawings. Additionally, methods of configuring and using a device according to an embodiment of the present invention are described in detail with reference to the attached drawings. The same reference numbers or symbols presented in each drawing represent parts or components that perform substantially the same functions. For convenience in the description below, upward, downward, leftward, and rightward directions are based on the drawings, and the scope of the present invention is not limited to the directions.

[0027]Terms including ordinal numbers such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one component from another. For example, without departing from the scope of rights of the present invention, a first component can be named a se...

Claims

1. An air injection device comprising: a main body part which includes a first fabric and a second fabric arranged to face each other, and is formed by bonding at least a portion of the periphery of the first fabric and at least a portion of the periphery of the second fabric to accommodate air inside; an air inlet part which is formed by not bonding the first and second fabrics so that at least a portion of the top of the main body part is opened to allow inflow of the air into the main body part; and a discharge part which is formed at the bottom of the main body part to discharge the air accommodated in the main body part, wherein when the first fabric and the second fabric are in close contact with each other inside the air inlet part, a coupling part is formed to at least partially seal the air inlet part.

2. The air injection device according to claim 1, wherein a sealing part where the first and second fabrics are bonded on both sides of the air inlet part is formed at the top of the main body part, and the first fabric and the second fabric extend upward from the sealing part, such that the air inlet part is formed.

3. The air injection device according to claim 1, wherein the coupling part includes at least one of a magnetic member, a zipper member, an adhesive member, or a strap member provided on each of the first and second fabrics.

4. The air injection device according to claim 3, wherein the coupling part is formed to have a predetermined length corresponding to the width of the air inlet part.

5. The air injection device according to claim 1, wherein when a user accommodates air into the inside of the main body part through the air inlet part and pressurizes the main body part, the volume of the main body part decreases, and the air accommodated in the main body part is discharged through the discharge part.

6. The air injection device according to claim 5, wherein the main body part is decreased in volume when a user grasps the top of the main body part and rolls at least a portion of the main body part towards the discharge part.

7. The air injection device according to claim 5, wherein the discharge part includes: a communication part which includes at least one communication hole communicating with the inside of the main body part to move the air accommodated in the main body part outwards; and a valve part of which at least a portion is in close contact with or spaced apart from the outer surface of the communication part to seal or open the communication hole.

8. The air injection device according to claim 1, further comprising: at least one gripping part which protrudes upward from at least one area of the top of the air inlet part, wherein the user opens the air inlet part by gripping the gripping part and separating the first fabric from the second fabric.

9. The air injection device according to claim 8, wherein the gripping part includes a first grip part provided on the first fabric and a second grip part provided on the second fabric, and wherein the first gripping part and the second gripping part are formed on opposite ends in the width direction of the air inlet part.

10. The air injection device according to claim 1, wherein a converging part which is decreased in the internal area from the air inlet part towards the discharge part to guide the air accommodated in the main body part towards the discharge part is formed in one area of the main body part.

11. Functional clothing comprising: the air injection device according to any one among claims 1 to 10; and a plurality of air accommodation parts to which the air injection device is connected, and which accommodate air injected through the air injection device.

12. The functional clothing according to claim 11, wherein the clothing includes a pocket part in which the air injection device is accommodated, and the discharge part of the air injection device is connected to at least one of the air accommodation parts through one area of the inner surface thereof.

13. The functional clothing according to claim 12, wherein the air injection device is accommodated in the pocket part in a rolled or folded state.

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