Air injection device and functional clothing equipped with the same

Abstract

An air injection device is provided according to an embodiment of the present invention. The air injection device includes a main body portion formed to accommodate air therein by joining at least a part of the periphery of a first fabric and a second fabric arranged to face each other; an air inlet portion formed by at least a part of the upper end of the main body portion being open with the first fabric and the second fabric not joined, for allowing air to flow into the inside of the main body portion; and a discharge portion formed at the lower end of the main body portion for discharging the air accommodated in the main body portion. A coupling portion may be formed inside the air inlet portion to bring the first fabric and the second fabric into close contact with each other and at least partially seal the air inlet portion.

Description

Technical Field

[0001] The present invention relates to an air injection device and functional clothing provided with the same, and more particularly, to an air injection device capable of easily injecting air into an air storage portion formed in clothing and functional clothing provided with the same.

Background Art

[0002] An air injection device is used to be mounted on a medium for various purposes such as a knee protection pad, a body shape correction pad, a belly band / abdomen wrap, a life-saving torso garment, a rubber tube, and a wrist protection pad, so that air can be easily injected into and discharged from the medium.

[0003] However, the conventional air injection device has a problem in that the amount of air that the user can blow in is limited, and a great deal of force and a longer time are required for the user to expand the air tube to the maximum extent.

[0004] On the other hand, such an air injection device is used by being combined with functional clothing capable of forming a cushioning feeling in one area of the clothing by allowing air to flow into one area of the clothing. However, the conventional functional clothing has caused inconvenience to the user, such as having to carry the air injection device separately and attaching and detaching it as needed to inject air.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention has been devised to solve the above problems, and an object thereof is to provide an air injection device capable of easily injecting air into an air storage portion formed in clothing through the air injection device and functional clothing provided with such an air injection device.

[0006] The technical problems of the present invention are not limited to the above-described technical problems at all, and other technical problems not mentioned should be clearly understood by those skilled in the art from the following description.

Means for Solving the Problem

[0007] An air injection device is provided according to an embodiment of the present invention. The air injection device includes a main body portion formed to accommodate air inside by joining at least a part of the periphery of a first fabric and a second fabric arranged to face each other, and at least a part of the upper end of the main body portion is formed by the first fabric and the second fabric not being joined and being opened, and an air inlet portion for allowing air to flow into the inside of the main body portion, and a discharge portion formed at the lower end of the main body portion for discharging the air accommodated in the main body portion. A coupling portion for bringing the first fabric and the second fabric into close contact with each other and at least partially sealing the air inlet portion may be formed inside the air inlet portion.

[0008] Further, a sealing portion where the first fabric and the second fabric are joined may be formed on both sides of the air inlet portion at the upper end of the main body portion, and the air inlet portion may be formed by the first fabric and the second fabric extending upward from the sealing portion.

[0009] Furthermore, the coupling portion may be composed of at least one of at least one magnet member, fastener member, adhesive member, or strap member provided on the first fabric and the second fabric, respectively.

[0010] Furthermore, the coupling portion may be formed to have a predetermined length corresponding to the width of the air inlet portion.

[0011] Furthermore, after the user accommodates air inside the main body portion through the air inlet portion, if the main body portion is pressed, the air accommodated in the main body portion may be discharged through the discharge portion while the volume of the main body portion decreases.

[0012] Furthermore, the volume of the main body portion may decrease when the user holds the upper end of the main body portion and winds up at least a part of the main body portion toward the discharge portion.

[0013] Furthermore, the discharge part may include a communication part in which at least one communication hole is formed for the air accommodated in the main body part to move to the outside in communication with the inside of the main body part, and a valve part for closing or opening the communication hole by at least partially sealing or separating from the outer surface of the communication part.

[0014] Furthermore, the air injection device may further include at least one gripping part protruding upward from at least one area at the upper end of the air inflow part, and the user may open the air inflow part by gripping the gripping part to separate the first fabric and the second fabric.

[0015] Furthermore, the gripping part includes a first gripping part provided on the first fabric and a second gripping part provided on the second fabric, and the first gripping part and the second gripping part may be respectively formed at opposite ends in the width direction of the air inflow part so as to correspond to each other.

[0016] Furthermore, a converging part may be formed in an area of the main body part so that the internal area decreases as it advances from the air inflow part toward the discharge part, and guides the air accommodated in the main body part to move toward the discharge part.

[0017] Functional clothing is provided according to an embodiment of the present invention. The functional clothing may include the air injection device and a piece of clothing including a plurality of air accommodation parts connected to the air injection device and accommodating the air injected through the air injection device.

[0018] Also, the piece of clothing may be detachably attached to the inside of the air injection device, and may include a pocket part connected to the discharge part inside so that the inside of the main body part communicates with the air accommodation part.

[0019] Furthermore, the air injection device may be accommodated inside the pocket part in a wound state.

Advantages of the Invention

[0020] According to the present invention, an air injection device can be formed using a fabric, and air can be injected in a simple manner in which a user blows air inside the fabric and then rolls and compresses it, thereby enhancing the usability for the user.

[0021] Also, according to the present invention, even if a user blows air into the air injection device with a small force and a small number of times, the clothes can be inflated more quickly and maximally.

[0022] Also, according to the present invention, by sealing the air inlet through the sealing part and the coupling part, the outflow of the air accommodated in the main body part can be prevented.

[0023] Furthermore, according to the present invention, the movement of the air accommodated in the main body part can be controlled only when a user presses it through the valve part of the discharge part.

[0024] Furthermore, according to the present invention, even if the air injection device is not removed from the clothes, it can be made into a small volume and conveniently carried inside a pocket.

Brief Description of the Drawings

[0025] In order to more fully understand the drawings cited in the detailed description section of the present invention, a brief description of each drawing is provided.

[0026]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6a

Figure 6b

Figure 7a

Figure 7b

Figure 7c

[0027] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the contents described in the accompanying drawings. Also, a method of constructing and using an apparatus according to an embodiment of the present invention will be described in detail with reference to the contents described in the accompanying drawings. In each drawing, the same reference numerals or symbols presented indicate components or elements that perform substantially the same function. The upper, lower, left, and right directions described hereinafter for convenience are based on the drawings, and the scope of rights of the present invention is not necessarily limited to those directions.

[0028] Expressions including ordinal numbers such as "first", "second", etc. can be used to describe various components, but the components are not limited by the expressions. The expressions can only be used for the purpose of distinguishing one component from another. For example, within the scope not departing from the scope of rights of the present invention, the first component may be named the second component, and similarly, the second component may also be named the first component. The expression "and / or" may include a combination of a plurality of related described items or any one of the plurality of related described items.

[0029] The terms used in this specification are merely used to describe specific embodiments and are not intended to limit and / or restrict the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprise", "include" or "have" are merely intended to specify the presence of the features, numbers, steps, operations, components, parts or combinations thereof described in the specification, and should not be construed as precluding the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0030] Throughout the specification, when a part is said to be "connected (connected, in contact, coupled)" to another part, this includes not only the case where it is "directly connected (connected, in contact, coupled)", but also the case where it is "indirectly connected (connected, in contact, coupled)" with other components interposed therebetween. Note that when a part is said to "comprise" a certain component, this does not exclude other components by default, and means that it may further comprise other components.

[0031] FIG. 1 and FIG. 2 are diagrams showing an air injection device according to an embodiment of the present invention.

[0032] Referring to FIGS. 1 and 2, the air injection device 100 may include a main body portion 110, an air inlet portion 120, and an exhaust portion 130.

[0033] The main body portion 110 can accommodate air inside and deform its shape as the user presses, thereby moving the air inside. For this purpose, the main body portion 110 may be made of a soft material and may be deformed in shape. In an embodiment, the main body portion 110 may be composed of a first fabric and a second fabric arranged to face each other, and may be configured to join at least a part of the periphery of the first fabric and the second fabric to accommodate air inside. To accommodate air inside, the main body portion 110 may be formed to have a sufficient volume and length.

[0034] In an embodiment, a polymer film coating layer having air impermeability may be formed on at least one region of the first fabric and / or the second fabric. Thereby, the first fabric and the second fabric can prevent the air inside the main body 110 from flowing out to the outside.

[0035] After the user accommodates air inside the main body 110 through the air inlet 120 and then presses the main body 110, the volume of the main body 110 can be reduced. For example, the user can reduce the volume of the main body 110 by pressing the main body 110 in a way of gripping the upper end of the main body 110 and winding or folding at least a part of the main body 110 toward the discharge part 130. At this time, while the volume of the main body 110 is decreasing, the air accommodated in the main body 110 can be discharged to the outside through the discharge part 130.

[0036] In an embodiment, a sealing part 111 where the first fabric and the second fabric are joined may be formed on both sides of the air inlet 120 at the upper end of the main body 110. If the entire upper end of the main body 110 is open, when the user blows air into the inside of the main body 110 through the air inlet 120, there is a risk that part of the air blown by the user or all of the air accommodated inside the main body 110 leaks through the open upper end of the main body 110. The sealing part 111 can minimize the amount of leaking air by allowing only a part of the upper end of the main body 110 to be open.

[0037] In an embodiment, as shown in FIGS. 1 and 2, the sealing part 111 may be formed by joining the first fabric and the second fabric on both sides of the air inlet 120, but the present invention is not limited thereto, and the sealing part 111 may be formed by joining the first fabric and the second fabric on one side of the air inlet 120.

[0038] In one area of the main body portion 110, a converging portion 112 may be formed to guide the air accommodated in the main body portion 110 to move toward the discharge portion 130. For this purpose, the converging portion 112 may be formed in a shape in which the internal area or width decreases as it advances from the air inlet portion 120 toward the discharge portion 130. Thereby, as the air accommodated in the main body portion 110 advances from the air inlet portion 120 toward the discharge portion 130, it can be gradually denser, so that the air can move more efficiently through the discharge portion 130.

[0039] The air inlet portion 120 can be configured such that air flows into the inside of the main body portion 110. For example, the air inlet portion 120 may be formed by at least a part of the upper end of the main body portion 110 being open without the first fabric and the second fabric being joined. Also, for example, the air inlet portion 120 may be formed by the first fabric and the second fabric extending upward from the sealed portion 111 of the main body portion 110.

[0040] In an embodiment, before the air inlet portion 120 is opened, since no air is accommodated inside the main body portion 110, when the air inlet portion 120 is opened in a state of low pressure, external air can instantaneously flow into the inside of the main body portion 110 having a relatively low pressure. Thereby, even if the user blows air with a small force and a small number of times, the volume of the main body portion 110 can be rapidly increased.

[0041] Inside the air inlet portion 120, a coupling portion 121 may be formed to bring the first fabric and the second fabric into close contact to at least partially seal the air inlet portion 120. After the user blows air into the inside of the main body portion 110 through the air inlet portion 120, the user can prevent the outflow of the air accommodated in the main body portion 110 by sealing the air inlet portion 120 through the coupling portion 121.

[0042] In an embodiment, the coupling part 121 may be composed of at least one of at least one magnet member, fastener (chuck) member, adhesive member, or strap member provided on the first fabric and the second fabric, respectively. However, the present invention is not limited thereto at all, and it may be composed of various members capable of bringing the first fabric and the second fabric into close contact with each other, such as Velcro (registered trademark) type tape, fasteners, and the like.

[0043] In an embodiment, the coupling part 121 is formed to have a predetermined length corresponding to the width of the air inlet part 120, and can seal the air inlet part 120 more efficiently. For example, when the user winds up the main body part 110, by gripping the coupling part 121 and winding it around the center of the coupling part 121, the main body part 110 can be pressed more easily by forming the magnet member or the like constituting the coupling part 121 to have a predetermined length.

[0044] The discharge part 130 is formed at the lower end of the main body part 110 and communicates with the main body part 110 to discharge the 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 media that require air to flow in, such as clothing, an air pump, a protective pad, a belly band / apron, a life jacket, a tube, etc., and communicate the media 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 media.

[0045] The discharge part 130 may include a communication part 131 and a valve part 132.

[0046] 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.

[0047] The valve portion 132 can control the movement of air between an object such as clothing to which the air injection device 100 is coupled and the main body portion 110. For example, after the user injects air into the air injection device 100 and presses the main body portion 110, the valve portion 132 can open the communication hole 131-1 by separating from the outer surface of the communication portion 131. Thereby, the air accommodated in the main body portion 110 can be injected into the inside of the object. Further, for example, if the injection of air into the object is completed, the valve portion 132 can seal the communication hole 131-1 by being in close contact with the outer surface of the communication portion 131. Thereby, it is possible to prevent the air accommodated inside the object from leaking to the outside of the object through the discharge portion 130.

[0048] In an embodiment, the valve portion 132 can be made of a soft material and deformed as the main body portion 110 of the user is pressed. For example, the valve portion 132 can be made of silicon, polyester, polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polyethylene terephthalate glycol, polycarbonate, polyacrylate, polystyrene, acrylonitrile butadiene styrene, nylon, polyurethane, or a combination thereof, provided that the present invention is not limited thereto.

[0049] The air injection device 100 according to FIGS. 1 and 2 is merely exemplary, and various configurations can be applied according to the embodiments to which the present invention is applied.

[0050] FIG. 3 is a diagram showing functional clothing according to an embodiment of the present invention.

[0051] Specifically, FIG. 3(a) is a diagram showing the functional clothing 1000 in a state where air is discharged into the clothing 200, and FIG. 3(b) is a diagram showing the functional clothing 1000 in a state where air has flowed into the clothing 200.

[0052] Referring to FIG. 3, the functional clothing 1000 may include the air injection device 100 and the clothing 200.

[0053] The clothing 200 can be formed in the form of an upper garment or a lower garment that can be worn by a user using a plurality of fabrics. However, the present invention is not limited thereto, and can cover all forms of clothing or accessories constituted by fabrics.

[0054] The clothing 200 may be provided with a plurality of air storage portions 210 to which the air injection device 100 is connected and which store air inside. As described above, after opening the air inlet portion 120 of the air injection device 100 and storing air inside the main body portion 110, if the main body portion 110 is wound up or folded and pressed, air can be injected into the air storage portion 210 via the air injection device 100. Thereby, a cushioning feeling can be formed in one region of the clothing 200, and the function of heat retention can also be performed.

[0055] For example, the clothing 200 includes a third fabric and a fourth fabric arranged to face each other in at least one region, and the air storage portion 210 may be formed between such a third fabric and the fourth fabric. Also, for example, the air storage portion 210 may be formed in all regions of the clothing 200, but the present invention is not limited thereto, and may be formed in some regions necessary for absorbing joints, impacts, maintaining postures, or heat retention.

[0056] In an embodiment, a polymer film coating layer having air impermeability may be formed in at least one region of the third fabric and / or the fourth fabric. Thereby, the third fabric and the fourth fabric can perform a shielding function such as preventing the air in the air storage portion 210 from flowing out to the outside and preventing the user from being exposed to external moisture, water vapor, wind, or the like.

[0057] Around the air storage portion 210, at least one first region 211 formed by joining the third fabric and the fourth fabric to each other and at least one second region 212 formed without joining the third fabric and the fourth fabric may be formed.

[0058] The first region 211 can define the air storage part 210 from other air storage parts 210. As shown in the illustration of FIG. 6a, polymer film coating layers are respectively formed on one side of the third fabric and the fourth fabric facing each other, and the first region 211 may be formed by fusing at least one region of the third fabric and the fourth fabric to each other by at least one of heat fusion, high-frequency fusion or ultrasonic fusion. That is, when the third fabric and the fourth fabric are heated and pressed, while the polymer film coating layer is melted, the third fabric and the fourth fabric are joined to each other, whereby the first region 211 can be formed. However, the present invention is not limited thereto, and various deformations are possible, such as the polymer film coating layer being formed only on one side of either the third fabric or the fourth fabric. The above-described fusion methods are merely examples, and this disclosure is not limited thereto. Also, for example, a plurality of first regions 211 may be formed to have a certain length and be arranged at a certain interval from each other, but the present invention is not limited thereto and can have various intervals or lengths.

[0059] In another embodiment, as shown in the illustration of FIG. 6b, the first region 211 may be composed of a film 2111 for defining the air storage part 210 from other air storage parts 210. For example, polymer film coating layers are respectively formed on one side of the third fabric and the fourth fabric facing each other, and the first region 211 may be formed by heat-fusing the film 2111 to at least one region of the third fabric and the fourth fabric. Also, the film 2111 may be joined to the third fabric and the fourth fabric using an adhesive, or may be adhered by any other adhesion means. In another embodiment, the first region 211 that defines the air storage part by the film 2111 can expand to increase the air storage capacity of the air storage part 210.

[0060] As illustrated in FIGS. 7a, 7b, and 7c, the film 2111 that constitutes the first region 211 may include air permeation means 2112 and 2113 that allow air to flow between the air containing portions 210. FIGS. 7a, 7b, and 7c are exemplary diagrams that show in detail a portion of the film in FIG. 6b (the portion of the dotted circle in FIG. 6b). Further, the film 2111 may be made of a porous material through which air can pass. Due to the air flowing between the air containing portions 210 by the air permeation means 2112 and 2113 illustrated in FIGS. 7b and 7c, air can be uniformly contained in the air containing portions 210, enabling the shape of the clothing to be held better and allowing the wearer to move more freely. The air permeation means 2112 and 2113 may be configured such that, for example, there are regions where the film does not exist, as indicated by reference numeral 2112, or alternatively, there are pores 2113 through which air can permeate in the film 2111, as indicated by reference numeral 2113.

[0061] The width of the film 2111 that constitutes the thickness of the first region 211 may vary according to the region of the clothing. For example, depending on the width of the film 2111, the volume of the air-containing portion composed of the third fabric, the fourth fabric, and the film 2111 may vary. For example, when the width of the film 2111 is relatively wide, the volume of the air-containing portion 210 composed of the third fabric, the fourth fabric, and the film 2111 becomes relatively large, and as a result, it becomes possible to have a higher heat retention and cushioning feeling. For example, when the width of the film 2111 is relatively narrow, the volume of the air-containing portion 210 composed of the third fabric, the fourth fabric, and the film 2111 becomes relatively small, and as a result, it becomes possible to increase the ease of movement of the wearer. For example, in the case of the clothing 200 where a higher heat retention is required and the movement by the wearer is small, the first region 211 may be composed of the film 2111 having a relatively thick thickness, and in a region related to the ease of movement of the wearer such as the joint portion of the wearer, the first region 211 may be composed of the film 2111 having a relatively thin thickness. The overall thickness of the film 2111 may be set according to the target heat retention of the clothing 200. The second region 212 can allow the air-containing portion 210 to communicate with another adjacent air-containing portion 210. For example, the second region 212 may be formed between at least a part of the plurality of first regions 211. If air is injected into the clothing 200 through the air injection device 100, the air can spread sequentially or simultaneously to the plurality of air-containing portions 210 through the second region 212. For example, the air injected from the air injection device 100 into the first air-containing portion spreads to at least one second air-containing portion formed adjacent to the first air-containing portion so as to communicate with the first air-containing portion through the second region 212, and then spreads to at least one next adjacent third air-containing portion, and can spread sequentially or simultaneously to the plurality of air-containing portions 210 in such a manner.

[0062] The clothing 200 may be provided with a pocket portion 220 on the inner side, to which the air injection device 100 is detachably attached. For example, by joining at least a part of the periphery of a separate piece of fabric added to one side of the clothing 200, a pocket portion 220 with an accommodation space can be formed on the inner side. The upper end of the pocket portion 220 forms an open area, and the air injection device 100 accommodated inside can be exposed above the open area.

[0063] In an embodiment, the air injection device 100 may be attached to the pocket portion 220 such that the inside of the main body portion 110 of the air injection device 100 communicates with the air storage portion 210. For this purpose, the discharge portion 130 of the air injection device 100 may be connected to any one of the plurality of air storage portions 210 via a region on the inner surface of the pocket portion 220.

[0064] In an embodiment, the pocket portion 220 may accommodate the air injection device 100 (i.e., the main body portion 110) inside in a state where it is wound up or folded. Thereby, the user can conveniently carry it in a small volume and size without removing the air injection device 100 from the clothing 200, and can use it regardless of location and time, achieving portability and good usability.

[0065] In an embodiment, the pocket portion 220 may be provided on the outer surface of the clothing 200 as shown in FIG. 3, but the present invention is not limited thereto, and it may be provided on the inner surface of the clothing 200, or may be provided on both the outer surface and the inner surface. Also, the pocket portion 220 may be provided at the lower end of the body region of the clothing 200, but the present invention is not limited thereto, and it may be provided in various regions such as the body, shoulder, or arm regions of the clothing 200.

[0066] The functional clothing 1000 shown in FIG. 3 is merely exemplary, and various configurations can be applied according to the embodiments to which the present invention is applied.

[0067] Figs. 4 and 5 are diagrams showing an air injection device according to another embodiment of the present invention.

[0068] Referring to Figs. 4 and 5, the air injection device 100' may include a main body portion 110, an air inlet portion 120, a discharge portion 130, and a gripping portion 140. Here, the main body portion 110, the air inlet portion 120, and the discharge portion 130 can be described in the same manner as the air injection device 100 in Figs. 1 and 2.

[0069] The gripping portion 140 can be gripped by a user to open the air inlet portion 120 by separating the first fabric and the second fabric. For this purpose, the gripping portion 140 may project upward from at least one region at the upper end of the air inlet portion 120. For example, the gripping portion 140 may be formed on both the first fabric and the second fabric, but the present invention is not limited thereto and may be formed on only one of the first fabric and the second fabric. Also, for example, the gripping portion 140 may be formed only in one region at the upper end of the air inlet portion 120, or may be formed over the entire region at the upper end of the air inlet portion 120, but the present invention is not limited thereto and can cover any shape that protrudes upward so that a user can grip it.

[0070] In an embodiment, the gripping portion 140 may include a first gripping portion 141 provided on the first fabric and a second gripping portion 142 provided on the second fabric. The first gripping portion 141 and the second gripping portion 142 may be respectively formed at opposite ends in the width direction of the air inlet portion 120 so as to correspond to each other. Thereby, the user can more easily separate the first fabric and the second fabric by gripping the first gripping portion 141 and the second gripping portion 142 respectively.

[0071] In an embodiment, a first gripping portion 141 is formed in a region at the upper end of the first fabric of the air inlet portion 120, but a first opening portion may be formed in another region at the upper end. Correspondingly, a second gripping portion 142 is formed in a region at the upper end of the second fabric of the air inlet portion 120, but a second opening portion may be formed in another region at the upper end. For example, the first opening portion and the second opening portion may be formed by configuring the upper ends of the first fabric and the second fabric to protrude slightly further upward than the first gripping portion 141 and the second gripping portion 142. Thereby, the first gripping portion 141 is exposed on the second fabric side by the second opening portion, and the second gripping portion 142 is exposed on the first fabric side by the first opening portion, and the user can more easily grip the first gripping portion 141 and the second gripping portion 142 to open the air inlet portion 120.

[0072] The air injection device 100' shown in FIGS. 4 and 5 is merely exemplary, and various configurations can be applied according to the embodiments to which the present invention is applied.

[0073] As described above, the optimal embodiments have been disclosed in the drawings and the specification. Here, specific terms have been used, but these terms are merely used for the purpose of clearly explaining the present invention and are not used to limit the meaning or the scope of the present invention described in the claims. It is obvious that various changes and modifications can be made to the embodiments of the present invention and the described terms without departing from the technical idea and scope of the claims. These modified embodiments should not be individually understood as departing from the idea and scope of the present invention and should be said to belong within the scope of the claims of the present invention. Therefore, those having ordinary knowledge in the technical field to which the present invention pertains should be able to understand that various modifications and equivalent other embodiments can be adopted therefrom. Thus, the true technical protection scope of the present invention should be determined by the appended claims.

Explanation of Reference Numerals

[0074] 100, 100’ Air injection device 110 Main body part 111 Sealed 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 Holding part 141 First holding part 142 Second holding part 200 Clothes 210 Air storage part 211 First region 212 Second region 220 Pocket part 1000 Functional clothing

Claims

1. An air injection device, comprising: a main body portion formed to accommodate air inside by joining at least a part of the circumferences of a first fabric and a second fabric arranged to face each other; an air inlet portion formed by at least a part of the upper end of the main body portion being open where the first fabric and the second fabric are not joined, and allowing air to flow into the inside of the main body portion; a discharge portion formed at the lower end of the main body portion for discharging the air accommodated in the main body portion; and a coupling portion for bringing the first fabric and the second fabric into close contact with each other to at least partially seal the air inlet portion is formed inside the air inlet portion.

2. The air injection device according to claim 1, wherein a sealing portion where the first fabric and the second fabric are joined is formed on both sides of the air inlet portion at the upper end of the main body portion, and the air inlet portion is formed by the first fabric and the second fabric extending upward from the sealing portion.

3. The air injection device according to claim 1, wherein the coupling portion is composed of at least one of at least one magnet member, fastener member, adhesive member, or strap member provided on the first fabric and the second fabric, respectively.

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

5. The air injection device according to claim 1, wherein after a user accommodates air inside the main body portion through the air inlet portion and then presses the main body portion, the air accommodated in the main body portion is discharged through the discharge portion while the volume of the main body portion decreases.

6. The air injection device according to claim 5, wherein the volume of the main body portion decreases when a user grips the upper end of the main body portion and winds at least a part of the main body portion toward the discharge portion.

7. The discharge portion comprises a communication portion in which at least one communication hole is formed for the air accommodated in the main body portion to move to the outside in communication with the inside of the main body portion; and a valve portion for sealing or opening the communication hole by at least a part being sealed or separated from the outer surface of the communication portion. The air injection device according to claim 5.

8. The air injection device further comprises at least one gripping portion protruding upward from at least one region at the upper end of the air inlet portion. The air injection device according to claim 1, wherein the user grips the gripping portion to separate the first fabric and the second fabric, thereby opening the air inlet portion.

9. The gripping portion includes a first gripping portion provided on the first fabric and a second gripping portion provided on the second fabric. The air injection device according to claim 8, wherein the first gripping portion and the second gripping portion are respectively formed at opposite ends in the width direction of the air inlet portion so as to correspond to each other.

10. In a region of the main body portion, a converging portion is formed such that the internal area decreases as it proceeds from the air inlet portion toward the discharge portion, and the air accommodated in the main body portion is guided to move toward the discharge portion. The air injection device according to claim 1.

11. An air injection device according to any one of claims 1 to 10, a garment comprising a plurality of air accommodation portions that are connected to the air injection device and accommodate the air injected through the air injection device, and a functional garment.

12. The garment comprises a pocket portion in which the air injection device is accommodated inside, and the discharge portion of the air injection device is connected to at least one of the air accommodation portions through a region of the inner surface. The functional garment according to claim 11.

13. The functional garment according to claim 12, wherein the air injection device is accommodated inside the pocket portion in a state of being wound or folded.

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