Gas-discharging cap, and cosmetic container comprising the same

Abstract

To provide a gas-discharging cap.SOLUTION: A gas-discharging cap includes: an inner cap 110 constituted so as to be fastened to a body and constituted so that an inner cap opening is formed at a part thereof; an outer cap 120 constituted so as to cover an outer side of the inner cap 110; and a check valve 130 inserted and coupled into the inner cap opening and constituted so as to seal or open the inner cap opening according to pressure of the body. The gas-discharging cap is so constituted that the inner cap opening is opened as the check valve 130 is elastically deformed when the pressure of the body exceeds preset critical pressure, and gas in the body is discharged in a lower direction of the outer cap 120 along the opened inner cap opening, and a space between the inner cap 110 and the outer cap 120.SELECTED DRAWING: Figure 1b

Description

[Technical Field]

[0001] The present invention relates to a gas release cap and a cosmetic container including the same. More specifically, the present invention relates to a gas release cap that is configured to release gas generated inside the cosmetic container through the lower side of the cap while simultaneously preventing the contents contained inside the cosmetic container from leaking to the outside, and a cosmetic container including the same. [Background technology]

[0002] Generally, for storing liquid contents such as detergents, fuel oils, cooking oils, and fermented foods such as soy sauce, containers are used that have an internal storage space to accommodate a certain volume and a handle to facilitate pouring and use of the contents. These containers are generally equipped with an inner plug and a container stopper at the pouring port to seal the contents and prevent leakage.

[0003] However, if a sealed container with contents stored inside is stored for a long period of time, or if the surrounding environment (e.g., exposure to sunlight, high temperatures, etc.) causes gas to be generated inside the container, the container may expand due to pressure, making it difficult to open the container stopper, or if the stored contents are highly flammable liquids, explosions due to gas pressure may often occur.

[0004] The problem of gas generation within a container is similar to that of cosmetic containers that contain cosmetic contents, and is particularly pronounced in cosmetic containers that contain vitamins. To solve the problem of gas generation within a cosmetic container, Patent Document 1 (Korean Patent Publication No. 10-2022-0144965) uses a packing member that expands according to the pressure in the space and seals or opens a communication hole at the bottom to release the gas generated inside to the outside. However, holes are formed on the surface of the outer cap so that the gas can be released to the top of the outer cap, which not only detracts from the aesthetic appeal of the cosmetic product, but also reduces the efficiency of gas release due to the method of gas release through upward movement.

[0005] Therefore, in order to overcome the problems and drawbacks of the gas venting method of the existing cosmetic containers, there is an increasing need in the industry for a new type of gas venting cap and a cosmetic container including the same, which can vent gas generated inside the cosmetic container through the lower end side of the cap while simultaneously preventing the contents inside the cosmetic container from leaking out. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Republic of Korea Patent Publication No. 10-2022-0144965 Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been devised to solve the above-mentioned technical problems, and aims to provide a gas exhaust cap and a cosmetic container including the same, which eliminates the conventional method of forming a hole in the top of the outer cap and exhausting gas through the hole, and instead allows gas inside the container to be exhausted through the lower side of the outer cap, thereby improving the aesthetic appearance and gas exhaust efficiency of the cosmetic container product.

[0008] Another object of the present invention is to provide a gas release cap and a cosmetic container including the same, which can prevent the contents of the container from leaking out by forming a sealing area through contact bonding between the inner cap and the check valve and additionally forming a supplementary sealing area through contact bonding between the inner cap and the outer cap.

[0009] Another object of the present invention is to provide a gas release cap and a cosmetic container including the same, which are provided with an additional spring coupled to the check valve, thereby ensuring stability against decompression leakage of the check valve.

[0010] Another object of the present invention is to provide a gas release cap and a cosmetic container including the same, which can more effectively prevent the contents of the container from leaking out by additionally providing a foam packing part made of nonwoven fabric in the space between the upper part of the inner cap and the outer cap.

[0011] Another object of the present invention is to provide a gas release cap and a cosmetic container including the same that can more effectively prevent the contents of the container from leaking out by forming an additional sealing area in the space between the sides of the inner cap and the outer cap.

[0012] The technical problems of the present invention are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0013] To solve the above technical problems, one embodiment of the present invention provides a gas exhaust cap that includes an inner cap configured to be fastened to a main body and having an inner cap opening formed in a portion thereof; an outer cap configured to cover the outside of the inner cap; and a check valve that is inserted and coupled to the inner cap opening and configured to seal or open the inner cap opening depending on the pressure of the main body.

[0014] The check valve can be made of NBR (nitrile butadiene rubber) material.

[0015] In addition, when the pressure inside the main body exceeds a predetermined critical pressure, the check valve is elastically deformed to open the inner cap opening, and the gas inside the main body can be discharged downward toward the outer cap along the opened inner cap opening and the space between the inner cap and the outer cap.

[0016] The check valve may be further configured to prevent leakage of the contents in the main body by first and second sealing areas formed by coupling with the inner cap.

[0017] The gas exhaust cap may further include a spring having one end connected to the outer cap and the other end connected to the check valve.

[0018] The spring may also be configured to bias the check valve toward the body.

[0019] The gas release cap may further include a foam packing portion disposed in a space between the inner cap and the outer cap and configured to prevent leakage of the contents in the main body.

[0020] Furthermore, a cosmetic container according to another embodiment of the present invention for solving the above technical problems may include the gas release cap; and a body to which the gas release cap is coupled. [Effects of the Invention]

[0021] According to one embodiment of the gas exhaust cap and cosmetic container including the same, the conventional method of forming a hole in the top of the outer cap and exhausting gas through the hole is eliminated, and the gas inside the container is exhausted through the lower side of the outer cap, thereby improving the aesthetic appeal and gas exhaust efficiency of the cosmetic container product.

[0022] In addition, according to one embodiment of the gas release cap and cosmetic container including the same, a sealing area is formed through contact bonding between the inner cap and the check valve, and an auxiliary sealing area is further formed through contact bonding between the inner cap and the outer cap, thereby preventing the contents in the container from leaking out.

[0023] In addition, the gas release cap and the cosmetic container including the same according to an embodiment of the present invention can ensure the stability of the check valve against decompression leakage by additionally providing a spring coupled to the check valve.

[0024] In addition, according to the gas release cap and the cosmetic container including the same according to one embodiment of the present invention, a foam packing part made of nonwoven fabric is additionally provided in the space between the upper part of the inner cap and the outer cap, thereby more effectively preventing the contents in the container from leaking out to the outside.

[0025] In addition, according to one embodiment of the gas release cap and cosmetic container including the same, an additional sealing area is formed in the space between the sides of the inner cap and the outer cap, thereby more effectively preventing the contents in the container from leaking out to the outside.

[0026] In order to more fully understand the drawings referred to in the detailed description of the present invention, a brief description of each drawing is provided. [Brief explanation of the drawings]

[0027] [Figure 1a] 1 is a cross-sectional view of a gas vent cap (100) according to one embodiment of the present invention. [Figure 1b] 1b is a cross-sectional view of the gas release cap (100) of the configuration of FIG. 1a, which is additionally provided with a spring (150) and a foam packing portion (160). [Figure 1c] FIG. 1 is an enlarged detail view of a check valve 130 according to one embodiment of the present invention. [Figure 2] 4 is an exemplary diagram illustrating a mechanism for discharging gas in response to an increase in pressure within a cosmetic container according to an embodiment of the present invention. FIG. [Figure 3] 1 is a cross-sectional view of a gas vent cap (100) according to an additional embodiment of the present invention. [Figure 4a]1A-1C are cross-sectional views of a gas vent cap (100) illustrating various shapes that a check valve (130', 130'', 130''') can have according to an embodiment of the present invention. [Figure 4b] 1A-1C are cross-sectional views of a gas vent cap (100) illustrating various shapes that a check valve (130', 130'', 130''') can have according to an embodiment of the present invention. [Figure 4c] 1A-1C are cross-sectional views of a gas vent cap (100) illustrating various shapes that a check valve (130', 130'', 130''') can have according to an embodiment of the present invention. [Figure 5] 1 is a schematic cross-sectional view of a cosmetic container (1000) formed by combining a gas release cap (100) with a body (200) according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0028] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. When assigning reference numerals to components in each drawing, the same numerals are used to the extent possible for identical components even when they appear in different drawings. In describing embodiments of the present invention, if a detailed description of related known structures or functions is deemed to hinder understanding of the embodiments of the present invention, such a detailed description will be omitted. Furthermore, although embodiments of the present invention will be described below, the technical concept of the present invention is not limited thereto and may be modified and variously implemented by those skilled in the art.

[0029] Throughout this specification, when a part is described as being "connected" to another part, this includes not only "directly connected" but also "indirectly connected" via another element therebetween. Throughout this specification, when a part is described as "comprising" a certain component, this does not mean that other components are excluded, but that the part may further include other components, unless otherwise specified. Furthermore, when describing components of embodiments of the present invention, terms such as "first," "second," "A," "B," "(a)," and "(b)" may be used. These terms are used to distinguish the component from other components, and do not limit the nature, order, or sequence of the components.

[0030] 1a shows a cross-sectional view of a gas release cap (100) according to one embodiment of the present invention. The gas release cap (100) according to one embodiment of the present invention is characterized by being configured to release gas generated inside the cosmetic container through the lower end side of the cap while simultaneously preventing the contents inside the cosmetic container from leaking out. A cross-sectional view of such a gas release cap (100) is shown in FIG. 1a as an example.

[0031] As shown in Fig. 1a, a gas release cap (100) according to one embodiment of the present invention may be composed of an inner cap (110), an outer cap (120), a check valve (130), etc. For reference, each component constituting the gas release cap (100) according to the present invention and the cosmetic container (1000) including the same (see Fig. 5) may be made of lightweight materials, thereby improving the convenience of manufacturing, transporting, and using the gas release cap (100) and the cosmetic container (1000) including the same. Each component constituting the gas release cap (100) will be described in more detail below.

[0032] The inner cap (110) can be configured so that a portion of the inner cap is fastened to the main body (200, see FIG. 5). More specifically, the inner cap (110) according to the present invention is cylindrical, so that its cross section is roughly U-shaped. For this reason, the inner cap (110) can be configured with an inner cap main horizontal frame (111), an inner cap main vertical frame (112), an inner cap sub-vertical frame (113), etc. The inner cap (110) configured in this manner can serve as the inner housing of the gas exhaust cap (100) according to the present invention.

[0033] Furthermore, the inner cap (110) according to the present invention can be made of a plastic material, for example, PP (polypropylene), but PP is just one example of a material from which the inner cap (110) can be made, and the material from which the inner cap (110) can be made is not limited to PP.

[0034] The inner cap main horizontal frame (111) may be formed inside the gas release cap (100) according to the present invention, extending horizontally, i.e., parallel to the bottom surface of the cosmetic container (1000) according to the present invention. More specifically, the inner cap main horizontal frame (111) according to the present invention may be formed in the interior space of the outer cap (120) so as to extend parallel or substantially parallel to the outer cap main horizontal frame (121) with a shorter length than the outer cap main horizontal frame (121) of the outer cap (120), one end of which may be connected to the inner cap main vertical frame (112), and at least a portion of which may be formed with an inner cap protrusion (111a) and an inner cap opening (111b).

[0035] The inner cap protrusion (111a) may be formed to protrude from a certain region of the inner cap main horizontal frame (111) according to the present invention. As shown in the figure, the inner cap protrusion (111a) may be formed so as to protrude toward the outer cap main horizontal frame (121) at a point spaced a predetermined distance from the center of the upper surface of the inner cap main horizontal frame (111). The inner cap protrusion (111a) may be brought into contact with and coupled to at least a certain region of the check valve (130), more specifically, the arm (132, see FIG. 1c) of the check valve (130), thereby forming a sealing region, more specifically, a second sealing region (142, see FIG. 2(a)).

[0036] In addition, the inner cap opening 111b may be formed in a substantially central region of the inner cap main horizontal frame 111 according to the present invention, and as shown, the check valve 130 according to the present invention may be inserted and coupled to the inner cap opening 111b. The check valve 130 according to the present invention is configured to seal or open the inner cap opening 111b according to the pressure in the body 200. In particular, when the pressure in the body 200 exceeds a predetermined critical pressure, the check valve 130 is deformed to open the inner cap opening 111b, thereby forming a path for gas in the body 200 to be discharged to the outside. This will be described in more detail below with reference to FIG. 2.

[0037] The inner cap main vertical frame (112) may be formed inside the gas release cap (100) according to the present invention, extending vertically, i.e., parallel to the side of the cosmetic container (1000) according to the present invention. More specifically, the inner cap main vertical frame (112) according to the present invention may be formed in the interior space of the outer cap (120) so as to extend parallel or substantially parallel to the outer cap main vertical frame (122) with a shorter length than the outer cap main vertical frame (122) of the outer cap (120), and one end of the inner cap main vertical frame (112) may be connected to the inner cap main horizontal frame (111).

[0038] In addition, the difference between the length of the inner cap main vertical frame (112) and the length of the outer cap main vertical frame (122) can define a vertical space between the inner cap (110) and the outer cap (120). The inner cap sub-vertical frame (113), the outer cap sub-vertical frame (123), the upper region of the check valve (130), etc. can be placed in this vertical space between the inner cap (110) and the outer cap (120). In addition, a spring (150, see FIG. 1b) and a foam packing part (160, see FIG. 1b) can be further provided.

[0039] The inner cap sub-vertical frame 113 may be formed perpendicular to the inner cap main horizontal frame 111, for example, at a predetermined distance from the center of the inner cap main horizontal frame 111. The width of the inner cap sub-vertical frame 113 may be greater than the horizontal length of the check valve 130, so that the check valve 130 can be more stably accommodated in the upper space of the inner cap 110 formed by the inner cap sub-vertical frame 113.

[0040] Furthermore, the height of the inner cap sub-vertical frame (113) can be embodied to substantially correspond to the distance between the inner cap (110) and the outer cap (120), thereby allowing the exposed end of the inner cap sub-vertical frame (113) to contact and couple with the lower surface of the outer cap (120), more specifically, the outer cap main horizontal frame (121). This contact and coupling between the inner cap sub-vertical frame (113) and the outer cap main horizontal frame (121), particularly the outer cap protrusion (121a), can form an additional (or supplementary) sealing region, e.g., a third sealing region (143, see FIG. 2(a)). The formation and function of such a sealing region will be described in more detail below with reference to FIG. 2.

[0041] The outer cap 120 can be configured to cover the outside of the inner cap 110. More specifically, the outer cap 120 according to the present invention is cylindrical, and therefore has a substantially U-shaped cross section. For this reason, the outer cap 120 can be configured to include an outer cap main horizontal frame 121, an outer cap main vertical frame 122, an outer cap sub-vertical frame 123, etc. The outer cap 120 configured in this manner can form the exterior of the gas release cap 100 according to the present invention while preventing the internal components from coming off.

[0042] In addition, the outer cap (120) according to the present invention can also be made of a plastic material, for example, PP (polypropylene). However, like the inner cap (110) described above, PP is only one example of a material from which the outer cap (120) can be made, and the material of the outer cap (120) is not limited to PP.

[0043] The outer cap main horizontal frame (121) may be formed to extend horizontally outside the gas release cap (100) according to the present invention, i.e., parallel to the bottom surface of the cosmetic container (1000) according to the present invention. More specifically, the outer cap main horizontal frame (121) according to the present invention may be formed to extend parallel or substantially parallel to the inner cap main horizontal frame (111) at a longer length than the inner cap main horizontal frame (111) of the inner cap (110) at the outermost side of the gas release cap (100), and one end of the outer cap main horizontal frame (121) may be connected to the outer cap main vertical frame (122). An outer cap protrusion (121a) may be formed in at least a portion of the outer cap main horizontal frame (121).

[0044] The outer cap protrusion (121a) may be formed in a certain region of the outer cap main horizontal frame (121) according to the present invention. As shown in the figure, the outer cap protrusion (121a) may be formed on the bottom surface of the outer cap main horizontal frame (121) at a point spaced a predetermined distance from its center, protruding toward the inner cap main horizontal frame (111). When this outer cap protrusion (121a) comes into contact with and joins with the exposed end of the inner cap sub-vertical frame (113), an auxiliary sealing region, more specifically, a third sealing region (143, see FIG. 2(a)), may be formed.

[0045] As shown in the figure, the outer cap protrusion (121a) according to the present invention can be formed at a position farther from the center of the gas exhaust cap (100) than the inner cap protrusion (111a), and the outer sides of the outer cap protrusion (121a) are respectively connected to the inner cap sub-vertical frame (113), thereby realizing a supplementary (or additional) third sealing area (143) compared to the first sealing area (141, see FIG. 2(a)) and the second sealing area (142, see FIG. 2(a)), thereby more reliably preventing the contents in the main body (200) from leaking to the outside.

[0046] The outer cap main vertical frame (122) may be formed to extend vertically outside the gas release cap (100) according to the present invention, i.e., parallel to the side of the cosmetic container (1000) according to the present invention. More specifically, the outer cap main vertical frame (122) according to the present invention may be formed to extend parallel or substantially parallel to the inner cap main vertical frame (112) at a longer length than the inner cap main vertical frame (112) of the inner cap (110) at the outermost side of the gas release cap (100), and one end thereof may be connected to the outer cap main horizontal frame (121).

[0047] In addition, the difference between the length of the inner cap main vertical frame (112) and the length of the outer cap main vertical frame (122) can define a vertical space between the inner cap (110) and the outer cap (120). In this vertical space between the inner cap (110) and the outer cap (120), the inner cap sub-vertical frame (113), the outer cap sub-vertical frame (123), the upper region of the check valve (130), etc. can be disposed, and in addition, the spring (150) and the foam packing part (160) can be further disposed, as described above.

[0048] The outer cap sub-vertical frame 123 may be formed perpendicular to the outer cap main horizontal frame 121, for example, at a predetermined distance from the center of the outer cap main horizontal frame 121. The width of the outer cap sub-vertical frame 123 may be greater than the horizontal length of the check valve 130 and smaller than the head 131 of the check valve 130 (see FIG. 1c), thereby allowing the head 131 of the check valve 130 to be stably positioned within the space formed by the outer cap sub-vertical frame 123, as shown, either without or with a spring 150.

[0049] In addition, the height of the outer cap sub-vertical frame 123 may be shorter than the height of the inner cap sub-vertical frame 113. For example, the height of the outer cap sub-vertical frame 123 may be shorter than the distance between the inner cap 110 and the outer cap 120 minus the thickness of the arm 132 of the check valve 130. This allows a space to be secured in advance to allow the check valve 130 to move upward (e.g., slide) when deformation of the check valve 130 occurs as the gas pressure in the body 200 increases (see, for example, FIG. 2(b)). This will be described in more detail below with reference to FIG. 2.

[0050] As shown in the figure, the exposed end of the outer cap sub-vertical frame (123) may be embodied in a rounded shape toward the head (131) of the check valve (130). This rounded shape of the exposed end of the outer cap sub-vertical frame (123) can maximize structural stability when the outer cap sub-vertical frame (123) collides with the head (131) of the check valve (130) and / or with the spring (150).

[0051] The check valve 130 is inserted into the inner cap opening 111b formed in the inner cap 110 and can be configured to seal or open the inner cap opening 111b according to the pressure of the body 200. More specifically, in the check valve 130 according to one embodiment of the present invention, when the pressure inside the body 200 of the cosmetic container 1000 filled with contents exceeds a predetermined critical pressure due to gas generated inside the body 200, the check valve 130 deforms, preferably elastically deforms, to open the inner cap opening 111b, thereby allowing the gas inside the body 200 to be discharged downward through the opened inner cap opening 111b and the space between the inner cap 110 and the outer cap 120.

[0052] For this reason, check valve 130 according to one embodiment of the present invention may be made of NBR (nitrile butadiene rubber) material, which allows check valve 130 to have a predetermined elastic force and be configured to deform, i.e., elastically deform, in response to increasing gas pressure within body 200. For example, check valve 130 according to the present invention may be made of an elastic material that is configured to deform in response to an external force, store a restoring force, and use the stored restoring force to deform.

[0053] As will be explained again in FIG. 2 below, the check valve (130) according to one embodiment of the present invention can be configured to be fully inserted into and coupled to the inner cap opening (111b) to seal the inner cap opening (111b) when the pressure inside the body (200) is low, for example, when the pressure inside the body (200) is below a predetermined critical pressure. As the amount of gas inside the body (200) increases, when the gas pressure inside the body (200) exceeds the predetermined critical pressure, a gas discharge path is formed through the primary operation (e.g., see FIG. 2(b)) and secondary operation (e.g., see FIG. 2(c)) of the check valve (130). The gas inside the body (200) is discharged to the outside, more specifically, toward the lower end side of the outer cap (120) along the gas discharge path thus formed, thereby eliminating the problem of high-pressure gas inside the container.

[0054] An exemplary enlarged detail view of such a check valve 130 is shown in Figure 1c. As shown, the check valve 130 may be comprised of a head 131, an arm 132, a waist 133, a leg 134, and the like.

[0055] The head 131 of the check valve 130 may define a head region of the check valve 130. As shown, the head 131 may be disposed in the space between the outer cap sub-vertical frames 123, and the exposed end of the head 131 may be disposed a predetermined distance away from the bottom surface of the outer cap main horizontal frame 121, and the other end of the head 131 may be integrally connected to the arm 132 and the waist 133.

[0056] In this regard, a spring (150) may be selectively coupled to the check valve (130) according to the present invention. When the spring (150) is coupled to the check valve (130), one end of the spring (150) is coupled to the check valve (130) with the head (131) at the center, thereby improving the stability of the coupling.

[0057] The arm 132 of the check valve 130 may define the arm area of ​​the check valve 130. As shown, the arm 132 may be formed by extending a predetermined distance in the circumferential direction from the head 131, and the width of the arm 132 may be smaller than the distance between the inner cap sub-vertical frames 113.

[0058] The bottom surface of the arm 132 may be in contact with the inner cap main horizontal frame 111, and as shown, the bottom surface of the arm 132 may additionally have an arm recess 132a formed by recessing a portion thereof. The outer region of the bottom surface of the arm 132 where the arm recess 132a is not formed may be in contact with the inner cap protrusion 111a to form the second sealing region 142, and the inner region of the bottom surface of the arm 132 where the arm recess 132a is not formed may be in contact with the inner cap opening 111b, more specifically, with the upper region of the inner cap main horizontal frame 111 connected to the inner cap opening 111b, to form the first sealing region 141 (see FIG. 2(a)). In this way, by additionally forming the arm recess (132a) on the bottom surface of the arm (132) constituting the check valve (130) according to the present invention, a gas exhaust path can be formed more reliably, and it is also easier to form a sealing area to prevent the contents from leaking out.

[0059] The waist 133 of the check valve 130 may define the waist region of the check valve 130. That is, the waist 133 may be inserted into the inner cap opening 111b to seal the inner cap opening 111b with the check valve 130. As shown in the figure, the head 131 and the arm 132 may be connected to one side of the waist 133, and the leg 134 may be connected to the other side of the waist 133. The thickness of the waist 133 may be substantially the same as the thickness of the inner cap opening 111b, but may be greater than the thickness of the head 131.

[0060] The legs 134 of the check valve 130 may define the leg area of ​​the check valve 130. More specifically, when the check valve 130 according to the present invention is inserted into the inner cap opening 111b, the legs 134 may be positioned within the inner space of the inner cap 110. Here, the legs 134, which have a width greater than the size of the inner cap opening 111b, can be inserted through the inner cap opening 111b and positioned within the inner space of the inner cap 110 because the check valve 130 is made of a resilient material such as NBR.

[0061] As shown, one end of the leg 134 is connected to the waist 133, and the other end may additionally have a leg opening 134a. The check valve 130 according to the present invention is characterized in that it deforms in response to an increase in pressure within the body 200, opening the inner cap opening 111b and discharging gas within the body 200 to the outside. To more clearly and reliably realize the deformation of the check valve 130 in response to an increase in pressure, the leg opening 134a may be formed at the other end of the leg 134. The formed leg opening 134a ensures a space in which the leg 134 and the waist 133 can deform in response to the pressure within the body 200, thereby more clearly realizing the formation of a gas exhaust passage.

[0062] In this regard, the configuration in which leg openings (134a) are formed on the bottom surface of legs (134) is one example of a configuration of legs (134) to facilitate understanding of the present invention, and therefore, according to other embodiments of the present invention, legs (134) may be provided integrally without leg openings (134a).

[0063] For reference, the shape of the check valve (130) as shown in FIG. 1, which is composed of a head (131), an arm (132), a waist (133), a leg (134), etc., is merely one example for ease of understanding the present invention. The check valve (130) according to the present invention may include any shape of check valve that is configured to be deformed (e.g., stretched) as the pressure in the body (200) increases, thereby opening the inner cap opening (111b). Various shapes that such a check valve (130) may have will be described in more detail below in FIGS. 4a to 4c.

[0064] Based on the gas release cap (100) shown in Fig. 1a, when the gas pressure inside the main body (200) exceeds a certain level, the gas inside the main body (200) can be released to the outside through a gas release path formed by the upward movement and deformation of the check valve (130) and the deformation of the inner cap (110) / outer cap (120). However, in order to more reliably seal and open the inner cap opening (111b) by the check valve (130) and more reliably prevent the contents, such as cosmetic contents, from leaking to the outside through the formed gas release path, a spring (150) and a foam packing part (160) may be additionally used. Fig. 1b shows an example of a cross-sectional view of the gas release cap (100) having the spring (150) and the foam packing part (160) added to the configuration of Fig. 1a.

[0065] First, the spring 150 according to the present invention can be configured so that one end is connected to the outer cap 120 and the other end is connected to the check valve 130. More specifically, as shown in the figure, the spring 150 according to the present invention can be connected at one end to a region of the outer cap main horizontal frame 121 corresponding to the space between the outer cap sub-vertical frames 123, and can be connected at the other end to an upper region of the arm 132 of the check valve 130 through the head 131 of the check valve 130.

[0066] Here, the spring (150) can be configured to press the check valve (130) toward the main body (200) (i.e., downward in the drawing), so that when the gas pressure inside the main body (200) is low (i.e., when the pressure inside the main body (200) is below a predetermined critical pressure), the spring (150) can be used to further strengthen the sealing of the check valve (130) against the inner cap opening (111b), thereby further improving the stability of the main body (200) against decompression leakage.

[0067] In addition, the spring 150 according to the present invention can be made of a metal or plastic material having elasticity, for example, the spring 150 can be made of a SUS material.

[0068] Furthermore, as shown in FIG. 1b, a foam packing portion (160) configured to prevent the contents (e.g., cosmetic contents) in the main body (200) from leaking out may be additionally provided in the space between the inner cap (110) and the outer cap (120), more specifically, in the upper space between the inner cap (110) and the outer cap (120).

[0069] The foam packing (160) according to the present invention may be made of a plastic material, such as polyethylene (PE), and as an example, the foam packing (160) according to the present invention may be made of a non-woven fabric. When the check valve (130) opens in response to the increasing gas pressure inside the body (200) to form a gas release passage, the contents may leak along the formed gas release passage. If the contents leak along the bottom side of the outer cap (120), this can cause considerable inconvenience to consumers using the product, especially cosmetic products.

[0070] To solve this problem, that is, to prevent the contents in the main body (200) from leaking to the outside, a foam packing part (160) made of nonwoven fabric can be provided in the space between the inner cap (110) and the outer cap (120). More specifically, by placing the foam packing part (160) in the space between the inner cap sub-vertical frame (113) of the inner cap (110) and the outer cap main vertical frame (122) of the outer cap (120), the nonwoven fabric can absorb the contents, thereby fundamentally preventing the contents from leaking to the outside of the gas exhaust cap (100).

[0071] For reference, according to an additional embodiment of the present invention, a Gore-Tex® layer (not shown) can be additionally provided adjacent to the foam packing portion (160), which can be embodied as a nonwoven fabric, thereby more reliably preventing leakage of contents to the outside or liquid leakage.

[0072] As already explained, the spring (150) and the foam packing portion (160) shown in FIG. 1b are optional configurations, and therefore, as shown in FIG. 1a, the gas release cap (100) according to the present invention may be realized without the spring (150) and the foam packing portion (160), or may be realized by additionally including any one of the spring (150) and the foam packing portion (160), or may be realized by additionally including both the spring (150) and the foam packing portion (160).

[0073] The gas release cap (100) described in FIG. 1 can be used to release gas from the container to the outside while preventing leakage of the contents. FIG. 2 shows an example diagram illustrating the mechanism of gas release due to an increase in pressure inside a cosmetic container according to one embodiment of the present invention.

[0074] 2(a) shows an initial stage in which the inner cap opening 111b of the inner cap 110 has not yet been opened, i.e., is sealed, by the check valve 130. As shown in the figure, the check valve 130 is inserted and coupled to the inner cap opening 111b, and because the gas pressure within the body 200 is low, e.g., below a predetermined critical pressure, the check valve 130 has not yet deformed, and the check valve 130 can be configured to completely seal the inner cap opening 111b.

[0075] Here, as shown in the figure, a sealing portion (140) may be formed by contact between various elements that make up the gas exhaust cap (100). More specifically, it may include a first sealing area (141) formed by contact and bonding between the inner step of the arm (132) of the check valve (130) and the vertical inlet surface of the inner cap opening (111b), a second sealing area (142) formed by contact and bonding between the inner cap protrusion (111a) and the outer surface of the arm (132) of the check valve (130), and a third sealing area (143) formed by contact and bonding between the inner cap sub-vertical frame (113) and the outer cap protrusion (121a).

[0076] Here, the third sealing area (143) formed by the contact and bonding of the inner cap sub-vertical frame (113) and the outer cap protrusion (121a) can function as an auxiliary sealing means. Therefore, if external leakage is effectively prevented through the first sealing area (141) and the second sealing area (142), which the contents in the main body (200) first come into contact with, the third sealing area (143) may not be utilized. In other words, if the pressure within the main body (200) is so high that the contents pass through the first sealing area (141) and the second sealing area (142), the third sealing area (143) can be configured to prevent external leakage of the contents as an auxiliary or additional measure.

[0077] Furthermore, although the drawings exemplarily show a configuration in which the inner cap sub-vertical frame (113) and the arm (132) of the check valve (130) are spaced apart from each other, in other embodiments of the present invention, the length of the arm (132) can be further increased, thereby forming an additional sealing area by having the exposed end of the arm (132) come into contact with a portion of the inner cap sub-vertical frame (113).

[0078] In this way, the sealing portion 140 including the first sealing region 141, the second sealing region 142, the third sealing region 143, the additional sealing region, etc. can effectively prevent the contents in the main body 200 from leaking out. For reference, the leakage of the contents in the main body 200 to the outside can also be prevented by the foam packing portion 160, and can also be prevented by the additional sealing region formed in the space between the sides of the inner cap 110 and the outer cap 120, and this additional sealing region will be described in more detail below with reference to FIG. 3.

[0079] For reference, Figure 2(a) shows a configuration in which the outer cap protrusion (121a) is positioned inside the inner cap sub-vertical frame (113) when forming the third sealing area (143). However, according to another embodiment of the present invention, the outer cap protrusion (121a) formed on at least a portion of the bottom surface of the outer cap main horizontal frame (121) can also be positioned outside the inner cap sub-vertical frame (113) to form the third sealing area (143).

[0080] Furthermore, the inner cap protrusion (111a) and the outer cap protrusion (121a), which are formed to protrude from the surfaces of the inner cap (110) and the outer cap (120) to form a sealing area, are illustrated in the drawings as having a semicircular cross section. However, according to additional embodiments of the present invention, it is clear that the inner cap protrusion (111a) and the outer cap protrusion (121a) can be formed in other shapes such as a circle or a square, and configured to achieve a sealing effect by contacting other elements.

[0081] Furthermore, the inner cap sub-vertical frame (113) according to the present invention may have a constant thickness from bottom to top, or may have a thickness that decreases from bottom to top. In particular, in the case of an inner cap sub-vertical frame (113) having a trapezoidal cross section, the bottom surface that is connected to the inner cap main horizontal frame (111) is wider than the top surface that is in contact with the outer cap main horizontal frame (121), thereby further improving the support / connection stability of the inner cap sub-vertical frame (113).

[0082] Also, as shown in FIG. 2(a), a spring (150) may be additionally coupled between the outer cap main horizontal frame (121) and the check valve (130), and this spring (150) may be configured to pressurize the check valve (130) toward the body (200), i.e., downward in the drawing, thereby more reliably ensuring the leak stability of the check valve (130) when the inner cap opening (111b) is in an unopened state (i.e., sealed state) due to the relatively low pressure.

[0083] When a sealed container containing contents, for example, vitamins, is stored in the body (200) in a state similar to that shown in FIG. 2(a) for a long period of time or when gas is generated inside the container due to the surrounding environment (exposure to sunlight, high temperature, etc.), the container may expand due to the pressure of the gas. To solve the problem of the increase in gas pressure and the expansion of the container, the inner cap opening (111b) can be opened by operating the check valve (130).

[0084] 2(b) is the primary operating stage, which corresponds to the stage where the check valve 130 is primarily deformed due to the increase in gas pressure within the body 200. As shown in the figure, the check valve 130 rises slightly upward due to the increasing pressure within the body 200, and as the check valve 130 moves upward, the bottom surface of the arm 132 of the check valve 130 is released from contact with the top surface of the inner cap main horizontal frame 111.

[0085] However, in the first operating stage of Figure 2(b), the gas pressure inside the main body (200) has not yet reached the preset critical pressure, and a passage for gas discharge has not yet been formed. As shown in the figure, the first sealing area (141), the second sealing area (142), and the third sealing area (143) are not open, so gas cannot be discharged to the outside.

[0086] When the gas pressure in the body 200 increases further during this primary operation stage, i.e., when the gas pressure in the body 200 exceeds a preset critical pressure, the check valve 130 undergoes a secondary deformation, which can correspond to the secondary operation stage shown in Figure 2(c), where a gas exhaust passage is secured. When the gas pressure in the body 200 increases further, the check valve 130 undergoes deformation, and the thickness of the waist 133 of the check valve 130 becomes thinner or the circular waist 133 changes shape to an ellipse, etc., securing a gas exhaust passage at the inner cap opening 111b (i.e., the first sealing area 141 is released). Thereafter, the arm 132 of the check valve 130 undergoes elastic deformation due to the gas exhaust, and the bottom surface of the arm 132 and the inner cap protrusion 111b are in contact with each other. The contact bond between the inner cap sub-vertical frame (113) and the outer cap protrusion (121a), which may be made of PP, is released (i.e., the second sealing area (142) is released), and then the gas exhaust and high-pressure gas also cause a certain deformation in the inner cap sub-vertical frame (113) and the outer cap protrusion (121a), which may be made of PP, and the contact bond between the inner cap sub-vertical frame (113) and the outer cap protrusion (121a) may be released (i.e., the third sealing area (143) is released, and a slight gap may occur).

[0087] Then, (d) of Figure 2 is the gas discharge step, and as shown in the figure, the gas inside the main body (200) is discharged to the lower side of the outer cap (120) (even though there is no need to form a hole in the upper surface of the outer cap (120) to discharge the gas to the top of the outer cap (120)), thereby relieving the high pressure inside the main body (200). Here, by additionally providing foam packing parts (160) in the upper and lower spaces of the inner cap (110) and outer cap (120), leakage of the contents to the outside can also be effectively prevented.

[0088] When the gas pressure inside the main body (200) decreases again due to the gas being discharged to the outside, the check valve (130) according to the present invention returns to its original position (i.e., moves downward), and the deformation of the check valve (130), inner cap (110), and outer cap (120) caused by the high pressure can be released, thereby returning to the initial state as shown in Figure 2(a), i.e., the sealed state of the inner cap opening (111b).

[0089] When the gas pressure inside the main body (200) increases again in the state of (a) in Figure 2, the gas can be effectively released to the outside through the state changes of (b), (c), and (d) in Figure 2, and thus the predetermined procedure shown in Figure 2 is repeated in response to the increase and decrease in the gas pressure inside the main body (200).

[0090] For reference, in FIG. 2, for the sake of convenience, the primary operating stage (b), the secondary operating stage (c), and the gas exhaust stage (d) are shown separately and subdivided. However, in reality, when the gas pressure inside the main body (200) increases and exceeds a preset critical pressure, the upward movement and deformation of the check valve (130), which in turn opens the inner cap opening (111b) and exhausts the gas, can occur continuously and almost simultaneously. (Similarly, the downward movement and restoration of the check valve (130) due to a decrease in pressure, which in turn closes the inner cap opening (111b), can also occur continuously and almost simultaneously.)

[0091] In this regard, although not shown in the drawings, according to an additional embodiment of the present invention, a sensor (not shown) configured to detect gas can be additionally provided in at least a portion of the lower end side of the outer cap (120), and when the sensor detects external gas emission, the gas emission cap (100) according to the present invention is configured to output this in the form of a sound, thereby enabling the user to immediately recognize the gas emission.

[0092] FIG. 3 is a cross-sectional view of a gas vent cap (100) according to an additional embodiment of the present invention.

[0093] FIG. 2 shows a first sealing area (141), a second sealing area (142), and a third sealing area (143) for preventing the contents in the main body (200) from leaking to the outside, and according to an additional embodiment of the present invention, a fourth sealing area (144) can be additionally provided in the space between the sides of the inner cap (110) and the outer cap (120).

[0094] Similar to the third sealing area 143, the additional fourth sealing area 144 can be configured as a supplementary measure to ultimately prevent leakage of the contents to the outside when the gas pressure inside the main body 200 is so high that the contents leak through the first through third sealing areas 141, 142, and 143 and through the foam packing 160. Similar to the inner cap protrusion 111a and the outer cap protrusion 121a, the fourth sealing area 144 according to the present invention can be embodied in a semicircular, circular, or other protruding shape, and can be located in the lower region of the space between the sides of the inner cap 110 and the outer cap 120 (i.e., adjacent to the final air exhaust port), thereby more reliably preventing leakage of the contents of the main body 200 to the outside.

[0095] 4a-4c are cross-sectional views of the gas vent cap 100 illustrating various shapes that the check valves 130', 130'', 130''' can have according to one embodiment of the present invention.

[0096] Although Figures 1 to 3 exemplarily show the configuration of check valve (130) consisting of head (131), arm (132), waist (133), leg (134), etc., check valve (130) can be embodied in any shape that is configured to deform in response to the internal gas pressure of body (200) and seal or open inner cap opening (111b). Thus, various shapes of check valves (130', 130'', 130''' that check valve (130) may have are exemplarily shown in Figures 4a to 4c.

[0097] 4a shows an example of the use of a plug-type check valve 130'. For example, the check valve 130' can be made of a silicone material. As shown in the figure, the plug-type check valve 130' is typically configured to seal the inner cap opening 111b. When gas pressure increases, the silicone check valve 130' is lifted, creating a gap through which the high-pressure gas inside the body 200 can be exhausted, eventually being discharged through the bottom side of the outer cap 120.

[0098] FIG. 4b exemplarily illustrates the use of a check valve 130″ configured as a plug type with a different shape. For example, the check valve 130″ can be made of a plastic material. As shown, the plastic check valve 130″ is typically configured to seal the inner cap opening 111b. When gas pressure increases, the plastic check valve 130″ is lifted, creating a gap through which the high-pressure gas inside the body 200 can be exhausted, ultimately being discharged through the lower side of the outer cap 120. For reference, although not explicitly shown in FIG. 4b, a spring 150 can be attached to the plastic check valve 130″, and the spring 150 may partially assist the upward movement of the check valve 130″.

[0099] FIG. 4c also illustrates the use of a check valve 130''' configured with a different plug type. For example, the check valve 130''' can be made of plastic. As shown in the figure, the plastic check valve 130''' is typically configured to seal the inner cap opening 111b. When the gas pressure increases, a gap is formed between the plastic check valve 130'' and the inner cap opening 111b, allowing the high-pressure gas in the main body 200 to be exhausted through the gap and ultimately discharged through the bottom side of the outer cap 120.

[0100] Also, although not shown in the drawings, the check valve (130) according to an additional embodiment of the present invention may be embodied as (i) a bellows-type rubber dropper or (ii) a beaded plug type.

[0101] FIG. 5 is a schematic cross-sectional view of a cosmetic container (1000) formed by combining a gas release cap (100) with a body (200) according to an embodiment of the present invention.

[0102] As shown in the figure, a cosmetic container (1000) according to one embodiment of the present invention may be configured to include a main body (200) containing contents therein and a gas release cap (100) configured to be coupled to the main body (200) to cover the opening of the main body (200) and simultaneously release gas from the main body (200) to the outside. For example, the main body (200) may have an upper opening, and the gas release cap (100) may be coupled to the upper opening of the main body (200) with screws.

[0103] The main body (200) may be formed to extend in the vertical direction and have a cylindrical shape, and may contain contents, for example, cosmetic contents, in its internal space.

[0104] By combining the gas exhaust cap (100) of the present invention with the main body (200), there is no problem of container expansion (and the resulting explosion) due to an increase in gas pressure inside the main body (200), and the internal gas can be exhausted to the lower side of the outer cap (120), effectively preventing the potential leakage of the contents to the outside.

[0105] For reference, although a cosmetic container (1000) is described as an example of a container in which gas may be generated in the inner body (200) in this specification, the gas release cap (100) according to the present invention can be similarly attached and utilized to any container in which gas may be generated due to the contents contained therein, such as a beverage container, a detergent container, a syrup container, an oil container, a soy sauce container, etc.

[0106] As described above, the gas exhaust cap and cosmetic container including the same according to one embodiment of the present invention eliminates the conventional method of forming a hole in the top of the outer cap and exhausting gas through the hole, and instead allows gas inside the container to be exhausted through the lower side of the outer cap, thereby improving the aesthetic appeal and gas exhaust efficiency of the cosmetic container product.

[0107] In addition, according to one embodiment of the gas release cap and the cosmetic container including the same, a sealing area is formed through contact bonding between the inner cap and the check valve, and an additional auxiliary sealing area is formed through contact bonding between the inner cap and the outer cap, thereby preventing the contents in the container from leaking out.

[0108] In addition, the gas release cap and the cosmetic container including the same according to an embodiment of the present invention can ensure stability against decompression leakage of the check valve by additionally providing a spring coupled to the check valve.

[0109] In addition, according to the gas exhaust cap and the cosmetic container including the same according to one embodiment of the present invention, a foam gasket part made of nonwoven fabric is additionally provided in the space between the upper part of the inner cap and the outer cap, thereby more effectively preventing the contents in the container from leaking out to the outside.

[0110] In addition, according to one embodiment of the gas release cap and the cosmetic container including the same, an additional sealing area is formed in the space between the sides of the inner cap and the outer cap, thereby more effectively preventing the contents in the container from leaking out.

[0111] As described above, the drawings and specification disclose the preferred embodiment. Although specific terms are used herein, they are used merely for the purpose of describing the present invention and are not used to limit the meaning or the scope of the present invention as described in the claims. Therefore, those skilled in the art will recognize that various modifications and equivalent alternative embodiments are possible. Therefore, the true technical scope of protection of the present invention is determined by the technical spirit of the appended claims. [Explanation of symbols]

[0112] 100: Gas exhaust cap 110: Inner cap 111: Inner cap main horizontal frame 111a: Inner cap protrusion 112: Inner cap main vertical frame 113: Inner cap sub vertical frame 120: Outer cap 121: Outer cap main horizontal frame 121a: outer cap protrusion 122: outer cap main vertical frame 123: Outer cap sub vertical frame 130: Check valve 131: Head 132: Arm 132a: Arm Recess 133: West 134: Leg 134a: Leg opening 140: Sealing section 141: First sealing area 142: Second sealing area 143: Third sealing area 144: 4th sealing area 150: Spring 160: Foam packing part 200: Main body 1000: Cosmetic containers

Claims

1. A gas exhaust cap (100), an inner cap (110) configured to be fastened to the main body (200) and configured to form an inner cap opening (111b) in a partial area thereof; an outer cap (120) configured to cover the outside of the inner cap (110); and a check valve (130) inserted into the inner cap opening (111b) and configured to close or open the inner cap opening (111b) in response to the pressure of the body (200); A gas exhaust cap (100).

2. The check valve (130) is made of NBR (nitrile butadiene rubber) material. The gas venting cap (100) of claim 1.

3. When the pressure inside the main body (200) exceeds a preset critical pressure, the check valve (130) is elastically deformed to open the inner cap opening (111b), and the gas inside the main body (200) is discharged downward of the outer cap (120) through the opened inner cap opening (111b) and along the space between the inner cap (110) and the outer cap (120). The gas venting cap (100) of claim 2.

4. The check valve (130) is additionally configured to prevent leakage of the contents in the body (200) by a first sealing area (141) and a second sealing area (142) formed by coupling with the inner cap (110). The gas venting cap (100) of claim 3.

5. and a spring (150) configured to have one end connected to the outer cap (120) and the other end connected to the check valve (130). The gas venting cap (100) of claim 1.

6. The spring (150) is configured to bias the check valve (130) toward the body (200). The gas venting cap (100) of claim 5.

7. The container further includes a foam packing portion (160) disposed in a space between the inner cap (110) and the outer cap (120) and configured to prevent leakage of contents within the body (200). The gas venting cap (100) of claim 1.

8. A cosmetic container (1000), A gas venting cap (100) according to claim 1; and The gas exhaust cap (100) includes a body (200) to which the gas exhaust cap (100) is coupled. A cosmetic container (1000) characterized by:

Images