Gas release cap and cosmetic container containing 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

[0004] , , ,

[0001] The present invention relates to a gas discharge cap and a cosmetic container including the same. More specifically, the present invention relates to a gas discharge cap configured to discharge gas generated inside the cosmetic container through the lower side surface of the cap while preventing leakage of the contents accommodated inside the cosmetic container to the outside, and a cosmetic container including the same.

Background Art

[0002] Generally, for storing liquid contents of fermented foods such as detergents, fuel oils, edible oils, and soy sauces, a container having an accommodation space formed inside to accommodate a certain volume and having a handle formed to facilitate injection and use of the contents is used. In such a container, in order to prevent leakage of the contents, it is common for the injection port to be provided with an inner plug and a container plug for sealing.

[0003] However, when a container with its contents stored and sealed inside is stored for a long time, or when gas is generated inside the container due to the surrounding environment (e.g., exposure to sunlight, high temperature, etc.) and the container bulges due to the pressure, the container plug may not open properly. Also, when the stored contents are highly flammable liquids, explosion accidents due to gas pressure often occur.

[0004] The problem caused by gas generation in such containers is the same for cosmetic containers that contain cosmetic contents inside. Particularly, in cosmetic containers containing vitamin contents, such problems are more显著地出现. To solve the problem of gas generation in cosmetic containers, in Patent Document 1: Korean Patent Publication No. 10-2022-0144965, a packing member that extends according to the pressure of the space and seals or opens the lower communication hole is utilized to discharge the gas generated inside to the outside. However, since holes are formed on the surface of the outer cap so that the gas is discharged to the upper part of the outer cap, there are problems such as a decrease in the aesthetic sense of the cosmetic product and a decrease in gas discharge efficiency due to the discharge method through the upward movement of the gas.

[0005] Therefore, in order to improve upon the problems and shortcomings of existing gas discharge methods for cosmetic containers, there is a growing need in the industry for a new type of gas discharge cap and cosmetic containers that include it, which discharges gas generated inside the cosmetic container through the lower 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 Number 10-2022-0144965 [Overview of the Initiative] [Problems that the invention aims to solve]

[0007] The present invention was devised to solve the aforementioned technical problems, and aims to provide a gas discharge cap and a cosmetic container containing the same, which eliminate the conventional method of forming a hole in the upper part of the outer cap and discharging gas through that hole, and instead allow the gas inside the container to be discharged through the lower end side of the outer cap, thereby improving the aesthetic appearance and gas discharge efficiency of cosmetic container products.

[0008] Furthermore, the present invention aims to provide a gas discharge cap and a cosmetic container including the same, which can prevent the contents of a container from leaking out by forming a sealing region through contact coupling between an inner cap and a check valve, and by forming an auxiliary sealing region through additional contact coupling between an inner cap and an outer cap.

[0009] Furthermore, the present invention aims to provide a gas discharge cap and a cosmetic container containing the same, which ensures the pressure leakage stability of a check valve by additionally providing a spring coupled to the check valve.

[0010] Furthermore, the present invention aims to provide a gas discharge 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 portion made of nonwoven fabric in the space between the upper part of the inner cap and the outer cap.

[0011] Furthermore, the present invention aims to provide a gas discharge cap and a cosmetic container including the same, which can more effectively prevent the contents of the container from leaking out by forming an additional sealing area in the space between the inner cap and the side surface of 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] A gas discharge cap according to one embodiment of the present invention for solving the aforementioned technical problems may include 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 inserted and coupled to the inner cap opening and configured to seal or open the inner cap opening in accordance with the pressure of the main body.

[0014] Furthermore, the check valve can be manufactured from NBR (nitrile butadiene rubber) material.

[0015] Furthermore, when the internal pressure of the main body exceeds a preset critical pressure, the check valve is elastically deformed, causing the inner cap opening to open, and the gas inside the main body is discharged downwards along the opened inner cap opening and the space between the inner cap and the outer cap.

[0016] Furthermore, the check valve may be additionally configured to prevent leakage of the contents inside the main body by forming a first sealing region and a second sealing region formed by its connection with the inner cap.

[0017] Furthermore, the gas discharge cap may further include a spring configured such that one end is connected to the outer cap and the other end is connected to the check valve.

[0018] Furthermore, the spring can be configured to pressurize the check valve in the direction of the main body.

[0019] Furthermore, the gas discharge cap may further include a foam packing portion that is positioned in the space between the inner cap and the outer cap and configured to prevent leakage of the contents inside the main body.

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

[0021] According to one embodiment of the present invention, a gas discharge cap and a cosmetic container containing the same eliminate the conventional method of forming a hole in the upper part of the outer cap and discharging gas through that hole. Instead, by discharging the gas inside the container through the lower side of the outer cap, the aesthetic appeal and gas discharge efficiency of the cosmetic container product can be improved.

[0022] Furthermore, according to one embodiment of the present invention, a gas discharge cap and a cosmetic container containing the same can be used to prevent the contents of the container from leaking out by forming a sealing region through contact coupling between the inner cap and the check valve, and further forming an auxiliary sealing region through contact coupling between the inner cap and the outer cap.

[0023] Also, according to the gas discharge cap and the cosmetic container including the same according to an embodiment of the present invention, by additionally providing a spring coupled to the check valve, the decompression leakage stability of the check valve can be ensured.

[0024] Also, according to the gas discharge cap and the cosmetic container including the same according to an embodiment of the present invention, by additionally providing a foamed packing part embodied with a non-woven fabric in the space between the upper parts of the inner cap and the outer cap, leakage of the contents in the container to the outside can be more effectively prevented.

[0025] Also, according to the gas discharge cap and the cosmetic container including the same according to an embodiment of the present invention, by forming an additional sealing region in the space between the side surfaces of the inner cap and the outer cap, leakage of the contents in the container to the outside can be more effectively prevented.

[0026] To more fully understand the drawings cited in the detailed description of the present invention, a brief description of each drawing is provided.

Brief Description of the Drawings

[0027] [Figure 1a] It is a cross-sectional view of a gas discharge cap (100) according to an embodiment of the present invention. [Figure 1b] In the configuration of FIG. 1a, it is a cross-sectional view of a gas discharge cap (100) additionally provided with a spring (150) and a foamed packing part (160). [Figure 1c] It is a detailed enlarged view of a check valve (130) according to an embodiment of the present invention. [Figure 2] It is an exemplary diagram for explaining the mechanism of gas discharge accompanying an increase in pressure in a cosmetic container according to an embodiment of the present invention. [Figure 3] It is a cross-sectional view of a gas discharge cap (100) according to an additional embodiment of the present invention. [Figure 4a]This is a cross-sectional view of a gas discharge cap (100) for illustrating the various shapes that a check valve (130', 130'', 130''') according to one embodiment of the present invention may have. [Figure 4b] This is a cross-sectional view of a gas discharge cap (100) for illustrating the various shapes that a check valve (130', 130'', 130''') according to one embodiment of the present invention may have. [Figure 4c] This is a cross-sectional view of a gas discharge cap (100) for illustrating the various shapes that a check valve (130', 130'', 130''') according to one embodiment of the present invention may have. [Figure 5] This is a schematic cross-sectional view of a cosmetic container (1000) formed by connecting a gas discharge cap (100) according to one embodiment of the present invention to a main body (200). [Modes for carrying out the invention]

[0028] Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. When assigning reference numerals to the components in each drawing, the same reference numerals will be used for the same components whenever possible, even if they are shown in other drawings. When describing embodiments of the present invention, if it is determined that a specific description of a related known configuration or function would hinder the understanding of the embodiments of the present invention, such detailed description will be omitted. Furthermore, although embodiments of the present invention will be described below, the technical idea of ​​the present invention is not limited or restricted thereto and can be modified and implemented in various ways by those skilled in the art.

[0029] Throughout the specification, when a part is described as being "connected" to another part, this includes not only cases where it is "directly connected," but also cases where it is "indirectly connected" with another element in between. Throughout the specification, when a part is described as "containing" a component, this does not exclude other components unless otherwise stated, but rather means that it may contain other components. Furthermore, when describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are used to distinguish a component from other components, and the terms do not limit the nature, order, or sequence of the component.

[0030] Figure 1a shows a cross-sectional view of a gas discharge cap (100) according to one embodiment of the present invention. The gas discharge cap (100) according to one embodiment of the present invention is characterized by being configured to discharge gas generated inside the cosmetic container through the lower side of the cap, while at the same time preventing the contents inside the cosmetic container from leaking out to the outside. A cross-sectional view of such a gas discharge cap (100) is shown exemplarily in Figure 1a.

[0031] As shown in Figure 1a, a gas discharge cap (100) according to one embodiment of the present invention can consist of an inner cap (110), an outer cap (120), a check valve (130), and the like. For reference, each component constituting the gas discharge cap (100) and the cosmetic container (1000, see Figure 5) containing it according to the present invention can be made from lightweight materials, thereby further improving the convenience of manufacturing, transporting, and using the gas discharge cap (100) and the cosmetic container (1000) containing it. Furthermore, each component constituting the gas discharge cap (100) will be described in more detail below.

[0032] The inner cap (110) can be configured such that it fastens to the main body (200, see Figure 5) and a portion of it. More specifically, the inner cap (110) according to the present invention is of the cylindrical type, and its cross-section is provided in a substantially "U" shape, and for this purpose it can be composed of 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 way can serve as the inner housing of the gas discharge cap (100) according to the present invention.

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

[0034] The inner cap main horizontal frame (111) can be formed extending horizontally inside the gas discharge cap (100) according to the present invention, that is, 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 can be formed in the internal space of the outer cap (120) with a shorter length compared to the outer cap main horizontal frame (121) of the outer cap (120), extending parallel to or substantially parallel to the outer cap main horizontal frame (121), with one end being connected to the inner cap main vertical frame (112), and an inner cap projection (111a) and an inner cap opening (111b) can be formed in at least a portion of its area.

[0035] The inner cap projection (111a) can be formed to project from a portion of the inner cap main horizontal frame (111) according to the present invention, and as shown in the figure, the inner cap projection (111a) can be formed to project toward the outer cap main horizontal frame (121) at a point on the upper surface of the inner cap main horizontal frame (111) at a predetermined distance from its center, and the inner cap projection (111a) can contact and couple with at least a portion of the check valve (130), and more specifically with the arm (132, see Figure 1c) of the check valve (130), thereby forming a sealing region, more specifically a second sealing region (142, see Figure 2(a)).

[0036] Furthermore, the inner cap opening (111b) can be formed in the approximately central region of the inner cap main horizontal frame (111) according to the present invention, and as shown in the figure, the check valve (130) according to the present invention can be inserted and coupled into 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) in response to the pressure of the body (200). In particular, when the pressure inside the body (200) exceeds a preset critical pressure, the inner cap opening (111b) may be opened by deformation of the check valve (130), thereby forming a path for the gas inside the body (200) to be discharged to the outside. This point will be explained in more detail using Figure 2 below.

[0037] The inner cap main vertical frame (112) can be formed extending vertically inside the gas discharge cap (100) according to the present invention, that is, parallel to the side surface of the cosmetic container (1000) according to the present invention. More specifically, the inner cap main vertical frame (112) according to the present invention can be formed in the internal space of the outer cap (120) with a shorter length than the outer cap main vertical frame (122) of the outer cap (120), and can extend parallel or substantially parallel to the outer cap main vertical frame (122), with one end therefor being connected to the inner cap main horizontal frame (111).

[0038] Furthermore, the vertical space between the inner cap (110) and the outer cap (120) can be defined to the extent of the difference between the length of the inner cap main vertical frame (112) and the length of the outer cap main vertical frame (122). The inner cap sub-vertical frame (113), 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 Figure 1b) and a foam packing section (160, see Figure 1b) can be further provided.

[0039] The inner cap sub-vertical frame (113) can be formed perpendicular to the inner cap main horizontal frame (111) at a predetermined distance from the center of the inner cap main horizontal frame (111), for example, from a portion of the inner cap main horizontal frame (111). The width of the inner cap sub-vertical frame (113) can be greater than the horizontal length of the check valve (130), thereby allowing the check valve (130) to be more stably housed 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 subvertical frame (113) can be embodied so as 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 subvertical frame (113) to contact and couple with the lower surface of the outer cap (120), more specifically, the outer cap main horizontal frame (121). Such contact coupling between the inner cap subvertical frame (113) and the outer cap main horizontal frame (121), particularly the outer cap projection (121a), can form an additional (or auxiliary) sealing area, for example, a third sealing area (143, see Figure 2(a)). The formation and role of such a sealing area will be described in more detail in Figure 2 below.

[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 of a cylindrical type, so that its cross-section is provided in a substantially "U" shape, and for this purpose it can be composed of 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 way can be configured to form the appearance of the gas discharge cap (100) according to the present invention while simultaneously preventing the internal components from coming off.

[0042] Furthermore, the outer cap (120) according to the present invention can also be made from a plastic material, such as PP (polypropylene). However, as with the inner cap (110) mentioned above, PP is just one example of a material that can be used to make the outer cap (120), and the material of the outer cap (120) is not limited to PP.

[0043] The outer cap main horizontal frame (121) can be formed extending horizontally outside the gas discharge cap (100) according to the present invention, that is, 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 can be formed at the outermost edge of the gas discharge cap (100) with a longer length than the inner cap main horizontal frame (111) of the inner cap (110), and can be formed parallel to or substantially parallel to the inner cap main horizontal frame (111), with one end connected to the outer cap main vertical frame (122). An outer cap projection (121a) can be formed in at least a portion of its area.

[0044] The outer cap projection (121a) can be formed in a portion of the outer cap main horizontal frame (121) according to the present invention, and as shown in the figure, the outer cap projection (121a) can be formed projecting toward the inner cap main horizontal frame (111) at a predetermined distance from the center of the bottom surface of the outer cap main horizontal frame (121), and such outer cap projection (121a) can contact and connect with the exposed end of the inner cap sub vertical frame (113) to form an auxiliary sealing area, more specifically a third sealing area (143, see Figure 2(a)).

[0045] As shown in the figure, the outer cap projection (121a) according to the present invention can be formed at a position further from the center of the gas discharge cap (100) than the inner cap projection (111a), and the outside of the outer cap projection (121a) is coupled to the inner cap sub-vertical frame (113), thereby realizing an auxiliary (or additional) third sealing area (143) compared to the first sealing area (141, see Figure 2(a)) and the second sealing area (142, see Figure 2(a)), thereby more reliably preventing leakage of the contents inside the main body (200) to the outside.

[0046] The outer cap main vertical frame (122) can be formed extending vertically on the outside of the gas discharge cap (100) according to the present invention, that is, parallel to the side surface of the cosmetic container (1000) according to the present invention. More specifically, the outer cap main vertical frame (122) according to the present invention can be formed extending parallel to or substantially parallel to the inner cap main vertical frame (112) of the inner cap (110) at the outermost edge of the gas discharge cap (100) with a longer length than the inner cap main vertical frame (112) of the inner cap (110), and one end thereof can be connected to the outer cap main horizontal frame (121).

[0047] Furthermore, as described above, the vertical space between the inner cap (110) and the outer cap (120) can be defined to the extent of the difference between the length of the inner cap main vertical frame (112) and the length of the outer cap main vertical frame (122). 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 arranged in this vertical space between the inner cap (110) and the outer cap (120). In addition, the spring (150) and the foam packing section (160) can be further arranged.

[0048] The outer cap sub-vertical frame (123) can be formed perpendicular to the outer cap main horizontal frame (121) from a portion of 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) can be greater than the horizontal length of the check valve (130) and smaller than the head (131, see Figure 1c) of the check valve (130), thereby allowing the head (131) of the check valve (130) to be stably positioned in the space formed by the outer cap sub-vertical frame (123) as shown, either without or with connection to the spring (150).

[0049] Furthermore, the height of the outer cap sub-vertical frame (123) can 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) can be set to 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 for space to be pre-secured so that the check valve (130) can move upward (e.g., by sliding) when deformation of the check valve (130) occurs as the gas pressure of the main body (200) increases (see, for example, Figure 2(b)). This point will be explained in more detail in Figure 2 below.

[0050] As shown in the figure, the exposed end of the outer cap subvertical frame (123) can be rounded in the direction of the head (131) of the check valve (130), and through the rounded shape of the exposed end of the outer cap subvertical frame (123), the structural stability can be maximized when the outer cap subvertical frame (123) collides with the head (131) of the check valve (130) and / or with the spring (150).

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

[0052] For this purpose, a check valve (130) according to one embodiment of the present invention can be manufactured from NBR (nitrile butadiene rubber) material, thereby enabling the check valve (130) to have a predetermined elastic force and to be configured to deform, i.e., elastically deform, in response to increasing gas pressure within the body (200). For example, the check valve (130) according to the present invention can be formed from an elastic material configured to deform in shape in response to an external force, retain a restoring force, and deform using the retained restoring force.

[0053] As will be explained again in Figure 2 below, the check valve (130) according to one embodiment of the present invention can be configured to completely insert and connect 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 preset critical pressure. As the amount of gas inside the body (200) increases, if the gas pressure inside the body (200) exceeds a preset critical pressure, a gas discharge path is formed through the primary operation (see, for example, Figure 2(b)) and secondary operation (see, for example, Figure 2(c)) of the check valve (130), and 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 resolving the high-pressure gas problem inside the container.

[0054] A detailed close-up view of such a check valve (130) is illustrated exemplified in Figure 1c. As shown in the figure, the check valve (130) can be composed of a head (131), arm (132), waist (133), leg (134), etc.

[0055] The head (131) of the check valve (130) can define the head region of the check valve (130). As shown in the figure, the head (131) can be positioned in the space between the outer cap sub-vertical frames (123), the exposed end of the head (131) can be positioned at a predetermined distance from the bottom surface of the outer cap main horizontal frame (121), and the other end of the head (131) can be coupled integrally with the arm (132) and 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), the stability of the coupling can be further improved by coupling one end of the spring (150) to the check valve (130) with the head (131) as the center.

[0057] The arm (132) of the check valve (130) can define the region of the arm of the check valve (130). As shown in the figure, the arm (132) can be formed by extending circumferentially for a predetermined distance from the head (131), and the width of the arm (132) can be less than the distance between the inner cap subvertical frames (113).

[0058] Furthermore, the bottom surface of the arm (132) can be in contact with the inner cap main horizontal frame (111), but as shown in the figure, the bottom surface of the arm (132) may be additionally provided with an arm recess (132a) which is formed by recessing a part of it. The outer region of the bottom surface area of ​​the arm (132) in which the arm recess (132a) is not formed can be in contact with the inner cap projection (111a) to form a second sealing region (142), and the inner region of the bottom surface area of ​​the arm (132) in which the arm recess (132a) is not formed can be in contact with the inner cap opening (111b), and more specifically, with the upper region of the inner cap main horizontal frame (111) connected to the inner cap opening (111b) to form a first sealing region (141, see Figure 2(a)). In this way, by additionally forming an arm recess (132a) on the bottom surface of the arm (132) constituting the check valve (130) according to the present invention, a gas discharge path can be formed more reliably, and the formation of a sealing area to prevent external leakage of contents can be made easier.

[0059] The waist (133) of the check valve (130) can define the waist region of the check valve (130). That is, the sealing of the inner cap opening (111b) by the check valve (130) can be realized by the insertion and coupling of the waist (133) into the inner cap opening (111b). As shown in the figure, a head (131) and an arm (132) can be coupled to one side of the waist (133), and a leg (134) can be coupled to the other side of the waist (133). The thickness of the waist (133) can be substantially the same as the thickness of the inner cap opening (111b) and can be greater than the thickness of the head (131).

[0060] The legs (134) of the check valve (130) can define the leg region of the check valve (130). More specifically, when the check valve (130) according to the present invention is inserted and coupled into the inner cap opening (111b), the legs (134) can be positioned in the internal space of the inner cap (110). Hereinafter, the leg (134), which has a width larger than the size of the inner cap opening (111b), can be inserted through the inner cap opening (111b) and positioned in the internal space of the inner cap (110) because the check valve (130) is manufactured from an elastic material such as NBR.

[0061] Furthermore, as shown in the figure, one end of the leg (134) can be connected to the waist (133), and a leg opening (134a) can be additionally formed at the other end. The check valve (130) according to the present invention is characterized by being configured to deform due to an increase in pressure inside the body (200) and discharge gas inside the body (200) to the outside by opening the inner cap opening (111b). In order to more clearly and reliably realize the deformation of the check valve (130) due to the increase in pressure, a leg opening (134a) can be formed at the other end of the leg (134). The formed leg opening (134a) secures a space in which the leg (134) and waist (133) can deform due to the pressure inside the body (200), thereby more clearly realizing the formation of a gas exhaust passage.

[0062] In this regard, the configuration in which a leg opening (134a) is formed on the bottom surface of the leg (134) is an example of a leg (134) configuration that facilitates understanding of the present invention, and therefore, according to other embodiments of the present invention, the leg (134) may be provided as an integral part without a leg opening (134a).

[0063] For reference, the shape of the check valve (130) shown in Figure 1, which consists of a head (131), arms (132), waist (133), legs (134), etc., is merely one example to facilitate understanding of the present invention. The check valve (130) according to the present invention can include any shape of check valve configured to deform (for example, stretch) as the pressure inside 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 in Figures 4a to 4c below.

[0064] Based on the gas discharge cap (100) shown in Figure 1a, when the gas pressure inside the main body (200) exceeds a certain standard, the gas inside the main body (200) can be discharged to the outside through the gas exhaust 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 to more reliably prevent leakage of contents, such as cosmetic contents, to the outside through the formed gas exhaust path, a spring (150) and a foam packing part (160) may be used in addition. A cross-sectional view of the gas discharge cap (100) in which the spring (150) and foam packing part (160) are additionally provided in the configuration of Figure 1a is exemplified in Figure 1b.

[0065] First, the spring (150) according to the present invention can be configured such 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 coupled 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 the other end can be coupled to the 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 pressurize the check valve (130) toward the body (200) (i.e., downward in the drawing), thereby improving the pressure leakage stability of the body (200) by utilizing the spring (150) to further enhance the seal of the check valve (130) toward the inner cap opening (111b) when the gas pressure inside the body (200) is low (i.e., when the pressure inside the body (200) is below a preset critical pressure).

[0067] Furthermore, the spring (150) according to the present invention can be made from an elastic metal or plastic material; for example, the spring (150) can be made from SUS material.

[0068] Furthermore, as shown in Figure 1b, an additional foam packing section (160) can be 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), which is configured to prevent the contents of the main body (200) (for example, cosmetic contents) from leaking out.

[0069] The foamed packing portion (160) according to the present invention can be manufactured from a plastic material, such as PE (polyethylene), and as an example, the foamed packing portion (160) according to the present invention can be embodied in a non-woven fabric. When the check valve (130) is opened in response to the increasing gas pressure inside the main body (200) to form a gas discharge passage, the contents may leak out together with the gas along the formed gas discharge passage. However, if the contents leak out together along the lower end side of the outer cap (120), it causes considerable inconvenience to consumers who use the product, especially cosmetic products.

[0070] To solve this problem, that is, to prevent the contents of the main body (200) from leaking to the outside, a foam packing section (160) made of nonwoven fabric can be provided in the space between the inner cap (110) and the outer cap (120). More specifically, by arranging the foam packing section (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 is allowed to absorb the contents, fundamentally preventing the contents from leaking out of the gas discharge 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 in nonwoven fabric, thereby more reliably preventing leakage or liquid leakage of the contents to the outside.

[0072] As already explained, the spring (150) and foam packing portion (160) shown in Figure 1b are optional configurations. Therefore, the gas discharge cap (100) according to the present invention may be implemented without the spring (150) and foam packing portion (160), as shown in Figure 1a; or with the addition of either the spring (150) or the foam packing portion (160), or with the addition of both the spring (150) and the foam packing portion (160), or with the addition of both the spring (150) and the foam packing portion (160).

[0073] While the gas discharge cap (100) described in Figure 1 can be used to discharge gas from inside the container to the outside while preventing leakage of the contents, Figure 2 shows an illustrative diagram to explain the mechanism of gas discharge due to pressure increase inside the cosmetic container, according to one embodiment of the present invention.

[0074] First, Figure 2(a) shows the initial stage, before the inner cap opening (111b) of the inner cap (110) is opened by the check valve (130), i.e., the state where it is sealed. As shown in the figure, the check valve (130) is inserted and coupled to the inner cap opening (111b), and because the gas pressure inside the body (200) is low, for example below a preset critical pressure, deformation of the check valve (130) has not yet occurred, 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 area (140) may be formed by contact between various elements constituting the gas discharge cap (100). More specifically, this may include a first sealing area (141) formed by the contact coupling between the step on the inside of the arm (132) of the check valve (130) and the entry vertical surface of the inner cap opening (111b), a second sealing area (142) formed by the contact coupling between the inner cap projection (111a) and the outer surface of the arm (132) of the check valve (130), and a third sealing area (143) formed by the contact coupling between the inner cap sub-vertical frame (113) and the outer cap projection (121a).

[0076] Here, the third sealing region (143), formed by the contact coupling of the inner cap subvertical frame (113) and the outer cap projection (121a), can function as an auxiliary sealing means. Therefore, if external leakage is effectively prevented through the first sealing region (141) and second sealing region (142) to which the contents in the body (200) first come into contact, the third sealing region (143) may not be utilized. That is, if the pressure inside the body (200) is very high and the contents pass through the first sealing region (141) and second sealing region (142), the third sealing region (143) can be configured to auxiliaryly or additionally prevent external leakage of the contents.

[0077] Furthermore, although the drawings exemplify a configuration in which the inner cap subvertical frame (113) and the arm (132) of the check valve (130) are separated from each other, according to other embodiments of the present invention, the length of the arm (132) can be further increased, thereby forming an additional sealing area by the exposed end of the arm (132) contacting and coupling with a portion of the inner cap subvertical frame (113).

[0078] In this way, the sealing section (140), which includes the first sealing area (141), the second sealing area (142), the third sealing area (143), and additional sealing areas, can effectively prevent the contents of the main body (200) from leaking out. For reference, leakage of the contents of the main body (200) to the outside can also be prevented by the foam packing section (160) and by an additional sealing area formed in the space between the inner cap (110) and the outer cap (120), which will be explained in more detail in Figure 3 below.

[0079] For reference, Figure 2(a) shows a configuration in which the outer cap projection (121a) is positioned inside the inner cap sub-vertical frame (113) when forming the third sealing region (143). However, according to other embodiments of the present invention, the outer cap projection (121a), which is formed in 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 region (143).

[0080] Furthermore, regarding the inner cap protrusions (111a) and outer cap protrusions (121a) that are formed to protrude from the surfaces of the inner cap (110) and outer cap (120) to form a sealing area, the drawings illustrate that their cross-sections are semicircular. However, according to additional embodiments of the present invention, it is clear that the inner cap protrusions (111a) and outer cap protrusions (121a) can be provided in other shapes such as circular or square, and configured to realize a sealing effect through contact with other elements.

[0081] Furthermore, the inner cap sub-vertical frame (113) according to the present invention may be formed with a constant thickness from bottom to top, or with 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 support / connection stability of the inner cap sub-vertical frame (113) can be further improved by forming the bottom surface that connects to the inner cap main horizontal frame (111) to be wider than the top surface that contacts the outer cap main horizontal frame (121).

[0082] Furthermore, as shown in Figure 2(a), an additional spring (150) can be connected between the outer cap main horizontal frame (121) and the check valve (130). This spring (150) can be configured to pressurize the check valve (130) toward the body (200), i.e., downward in the drawing, thereby more clearly ensuring the leak stability of the check valve (130) in the unopened state (i.e., sealed state) of the inner cap opening (111b) formed due to the relatively low pressure.

[0083] In a state similar to that shown in Figure 2(a), if the container (200) is sealed and stored for a long period of time with contents, such as vitamins, inside it, or if gas is generated inside the container due to the surrounding environment (exposure to sunlight, high temperature, etc.), the container may expand due to the gas pressure. To solve this problem of increased gas pressure and container expansion, the inner cap opening (111b) can be opened by the operation of the check valve (130).

[0084] More specifically, Figure 2(b) represents the primary operating stage, which corresponds to the stage in which the check valve (130) is temporarily deformed as the gas pressure inside the main body (200) increases. As shown in the figure, the increasing pressure inside the main body (200) causes the check valve (130) to rise slightly upward, and as the check valve (130) moves upward, the contact between the bottom surface of the arm (132) of the check valve (130) and the top surface of the inner cap main horizontal frame (111) is released.

[0085] However, in the primary operating stage shown in 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 region (141), the second sealing region (142), and the third sealing region (143) are not open, so gas cannot be discharged to the outside.

[0086] If the gas pressure inside the main body (200) increases further during this primary operating stage, that is, if the gas pressure inside the main body (200) exceeds a preset critical pressure, Figure 2(c) can be considered a secondary operating stage, in which the check valve (130) deforms secondarily, thereby securing a gas exhaust passage. As the gas pressure inside the main body (200) increases further, deformation occurs in the check valve (130), causing the thickness of the waist (133) of the check valve (130) to decrease, or the circular waist (133) to change shape to an elliptical shape, thereby securing a gas exhaust passage in the inner cap opening (111b) (i.e., the first sealing region (141) is released). Subsequently, 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... The contact bond between part (111a) and the outer cap projection (121a) is released (i.e., the second sealing region (142) is released), and subsequently, gas exhaust and high-pressure gas may cause the inner cap subvertical frame (113) and outer cap projection (121a), which can be made of PP, to undergo predetermined deformation, and the contact bond between the inner cap subvertical frame (113) and the outer cap projection (121a) may be released (i.e., the third sealing region (143) is released, and a small gap may be created).

[0087] Then, Figure 2(d) shows the gas discharge stage, and as shown in the figure (even without forming a hole on the upper surface of the outer cap (120) to discharge gas to the top of the outer cap (120)), the gas inside the main body (200) can be discharged to the lower side of the outer cap (120) to relieve the high pressure inside the main body (200). At this point, by additionally providing a foam packing section (160) in the space above and below the inner cap (110) and the 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 external discharge of gas from inside the main body (200), 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), the inner cap (110), the outer cap (120), etc., caused by the high pressure is released, thereby returning to the initial state 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 shown in Figure 2(a), the gas can be effectively released to the outside through the state changes shown in Figures 2(b), (c), and (d). As a result, the predetermined procedure shown in Figure 2 is repeated in response to the increase and decrease in gas pressure inside the main body (200).

[0090] For reference, in Figure 2, for the sake of explanation, the primary operating stage (b), the secondary operating stage (c), and the gas discharge 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), the opening of the inner cap opening (111b), and the gas discharge can occur continuously and almost simultaneously. (Similarly, the downward movement and return of the check valve (130) due to the decrease in pressure, and the sealing of 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 surface of the outer cap (120), and when the sensor detects an external gas discharge, the gas discharge cap (100) according to the present invention can be configured to output this in sound form, thereby enabling immediate user recognition of the gas discharge.

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

[0093] Figure 2 shows the first sealing area (141), second sealing area (142), and third sealing area (143) for preventing leakage of the contents inside the main body (200). 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) described above, an additional fourth sealing area (144) may be provided as an auxiliary means to prevent leakage of contents to the outside if the gas pressure inside the body (200) is very high and the contents leak through the first to third sealing areas (141, 142, 143) and through the foam packing area (160). Similar to the inner cap protrusion (111a), outer cap protrusion (121a), etc., the fourth sealing area (144) according to the present invention may be implemented in a protruding shape such as a semicircular or circular shape, and the fourth sealing area (144) may be positioned 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 body (200) to the outside by the additional fourth sealing area (144).

[0095] Figures 4a to 4c are cross-sectional views of a gas discharge cap (100) illustrating the various shapes that a check valve (130', 130'', 130''') according to one embodiment of the present invention may have.

[0096] Figures 1 to 3 illustrate the configuration of a check valve (130) consisting of a head (131), arms (132), waist (133), legs (134), etc. However, the check valve (130) can be realized in any shape configured to deform according to the internal gas pressure of the body (200) and to seal or open the inner cap opening (111b). Thus, various shapes of check valves (130', 130'', 130''') that the check valve (130) may have are illustrated in Figures 4a to 4c.

[0097] Figure 4a illustrates the use of a check valve (130') configured as a plug type. For example, the check valve (130') can be made of silicone material and, as shown in the figure, is typically configured to seal the inner cap opening (111b) with a plug-type check valve (130'). When the gas pressure increases, the silicone check valve (130') is lifted, and the high-pressure gas inside the body (200) is exhausted through the resulting gap and finally discharged through the lower end side of the outer cap (120).

[0098] Figure 4b illustrates the use of check valves (130'') composed of different stopper types. For example, the check valve (130'') can be made of plastic, and as shown in the figure, it is typically configured to seal the inner cap opening (111b) with a plastic check valve (130''). When the gas pressure increases, the plastic check valve (130'') is lifted, allowing the high-pressure gas inside the body (200) to be exhausted through the resulting gap and finally discharged through the lower side of the outer cap (120). For reference, although not explicitly shown in Figure 4b, a spring (150) can be attached to the plastic check valve (130''), which may partially assist the upward movement of the check valve (130'').

[0099] Figure 4c illustrates the use of check valves (130''') composed of different plug shapes. For example, a check valve (130''') can be made of plastic, and as shown in the figure, it is typically configured such that the plastic check valve (130''') seals the inner cap opening (111b). As the gas pressure increases, a gap is created between the plastic check valve (130''') and the inner cap opening (111b), through which the high-pressure gas inside the body (200) can be exhausted and finally discharged through the lower side of the outer cap (120).

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

[0101] Figure 5 is a schematic cross-sectional view of a cosmetic container (1000) formed by connecting a gas discharge cap (100) (100) to a main body (200) according to one embodiment of the present invention.

[0102] As shown in the figure, a cosmetic container (1000) according to one embodiment of the present invention can consist of a main body (200) in which contents are contained, and a gas discharge cap (100) which is connected to the main body (200) to cover the opening of the main body (200) while simultaneously releasing internal gas from the main body (200) to the outside. For example, the main body (200) may have an upper opening, and the gas discharge cap (100) may be connected to the upper opening of the main body (200) with screws.

[0103] The main body (200) is formed to extend in the vertical direction and can be provided in a cylindrical shape, and its internal space can accommodate contents, such as cosmetic contents.

[0104] By using the gas discharge cap (100) according to the present invention in combination with the main body (200), the problem of container expansion due to increased gas pressure inside the main body (200) (and the resulting explosion accident) is completely eliminated, the internal gas can be discharged to the lower end side of the outer cap (120), and any potential problem of contents leaking to the outside can be effectively prevented.

[0105] For reference, this specification uses a cosmetic container (1000) as an example of a container in which gas may be generated in the internal body (200). However, the gas discharge cap (100) according to the present invention can be similarly attached to and used with any container in which gas may be generated depending on the contents it contains, such as beverage containers, detergent containers, syrup containers, oil containers, soy sauce containers, etc.

[0106] As described above, according to one embodiment of the present invention, the gas discharge cap and cosmetic container containing it eliminate the existing method of forming a hole in the upper part of the outer cap and discharging gas through that hole, and instead allow the gas inside the container to be discharged through the lower end side of the outer cap, thereby improving the aesthetic appeal and gas discharge efficiency of the cosmetic container product.

[0107] Furthermore, according to one embodiment of the present invention, a gas discharge cap and a cosmetic container containing the same can be used to prevent the contents of the container from leaking out by forming a sealing region through contact coupling between the inner cap and the check valve, and by forming an auxiliary sealing region through contact coupling between the inner cap and the outer cap.

[0108] Furthermore, according to one embodiment of the present invention, a gas discharge cap and a cosmetic container containing the same can be provided with an additional spring coupled to the check valve, thereby ensuring the pressure reduction and leakage stability of the check valve.

[0109] Furthermore, according to one embodiment of the present invention, a gas discharge cap and a cosmetic container containing the same can be more effectively prevented from leaking out of the container by additionally providing a foamed packing portion made of nonwoven fabric in the space between the upper part of the inner cap and the outer cap.

[0110] Furthermore, according to one embodiment of the present invention, a gas discharge cap and a cosmetic container containing the same can be used to more effectively prevent the contents of the container from leaking out by forming an additional sealing area in the space between the inner cap and the outer cap's sides.

[0111] As described above, optimal embodiments have been disclosed in the drawings and specification. Certain terms have been used here solely for the purpose of illustrating the invention and not to limit its meaning or the scope of the invention as defined in the claims. Therefore, a person with ordinary skill in the art can derive various modifications and equivalent other embodiments. Accordingly, the true scope of technical protection of the invention is determined by the technical concept of the appended claims. [Explanation of symbols]

[0112] 100: Gas discharge 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 subvertical frame 130: Check valve 131: Head 132: Arm 132a: Arm recess 133: Waist 134: Leg 134a: Leg opening 140: Sealing section 141: First sealing area 142: Second sealing area 143: Third sealing area 144: Fourth ceiling area 150: Spring 160: Foam packing section 200: Main body 1000: Cosmetic containers

Claims

1. A gas discharge cap (100), An inner cap (110) configured to be fastened to the main body (200), with an inner cap opening (111b) formed in a portion thereof; An outer cap (120) configured to cover the outside of the inner cap (110); and, Includes a check valve (130) which is inserted and coupled to the inner cap opening (111b) and configured to seal or open the inner cap opening (111b) in accordance with the pressure of the main body (200), The space between the inner cap (110) and the outer cap (120) is further provided with a foam packing portion (160) configured to prevent leakage of the contents inside the main body (200). A gas discharge cap (100) characterized by the following features.

2. The check valve (130) is manufactured from NBR (nitrile butadiene rubber) material. The gas discharge cap (100) according to claim 1.

3. When the pressure inside the main body (200) exceeds a preset critical pressure, the check valve (130) elastically deforms, causing the inner cap opening (111b) to open, and the gas inside the main body (200) is discharged downwards toward the outer cap (120) along the space between the opened inner cap opening (111b) and the inner cap (110) and the outer cap (120). The gas discharge cap (100) according to claim 2.

4. The check valve (130) is further configured to prevent leakage of the contents inside the main body (200) by forming a first sealing region (141) and a second sealing region (142) formed by its connection with the inner cap (110). The gas discharge cap (100) according to claim 3.

5. The spring (150) is further configured such that one end is connected to the outer cap (120) and the other end is connected to the check valve (130). The gas discharge cap (100) according to claim 1.

6. The spring (150) is configured to pressurize the check valve (130) toward the main body (200). The gas discharge cap (100) according to claim 5.

7. Cosmetic container (1000), A gas discharge cap (100) according to claim 1; and, The body (200) to which the gas discharge cap (100) is attached includes A cosmetic container (1000) characterized by the following.

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