Cap assembly and contents container comprising same

Abstract

According to an embodiment of the present application, a cap assembly is provided. The cap assembly comprises an outer cap and an inner cap inserted into the outer cap, wherein the outer cap includes: an outer cap body including an upper wall and a side wall that form an accommodation space into which the inner cap is inserted; an outer cap fastening part provided along the inner circumference of the side wall so as to allow rotation in synchronization with or relative to the inner cap; and at least one support part which is engaged with and coupled to a locking groove of the inner cap inserted into the accommodation space so as to prevent the separation of the inner cap, the support part including: guide parts which are arranged to be spaced apart from each other along the inner circumference of the side wall, and which extend from the side wall; and a locking part protruding from one area of the guide part, and the locking groove being defined by the inner cap body, a connection part and a skirt part of the inner cap.

Description

Stopper assembly and contents container including the same

[0001] The present application relates to a stopper assembly and a container for contents including the same.

[0002] Containers for various beverage products are essential for protecting the contents and facilitating easy opening and closing. In particular, for products such as probiotic drinks or health functional foods, glass or plastic bottle-shaped containers are preferred, and metal caps are widely used for these containers.

[0003] Metal caps offer the advantages of excellent sealing even with a thin thickness and ease of manufacturing; however, a perforated line is formed upon initial opening, posing a risk of injury to consumers from sharp edges. Additionally, the cap's diameter is small to fit the bottle neck, making it difficult to apply force when opening.

[0004] To address these issues, a double cap structure consisting of a metal inner cap and a plastic outer cap surrounding it has been developed. This double cap structure enhances safety by having the outer cap cover the perforation of the inner cap, and offers the advantage of easy opening due to the relatively large diameter of the outer cap.

[0005] However, conventional double cap structures attach the inner and outer caps with adhesive or rigidly combine them mechanically, making separation difficult. Consequently, there is a problem in that it is difficult to separate the inner and outer caps during disposal after use, and even if they are separated, adhesive remains, making recycling difficult.

[0006] The purpose of this application is to provide a stopper assembly and a container for contents including the same.

[0007] According to an embodiment of the present application, a stopper assembly is provided. The stopper assembly comprises an outer stopper; and an inner stopper inserted into the inner side of the outer stopper; wherein the outer stopper comprises an outer stopper body including an upper wall and a side wall forming a receiving space into which the inner stopper is inserted; an outer stopper attachment portion provided along the inner circumference of the side wall to rotate synchronously or relative to the inner stopper; and at least one support portion that engages with a catch groove of the inner stopper inserted into the receiving space to prevent the inner stopper from disengaging; wherein the support portion is spaced apart from each other along the inner circumference of the side wall and includes a guide portion extending from the side wall; and a catch portion formed protruding from one area of ​​the guide portion, and the catch groove may be defined by the inner stopper body, a connecting portion, and a skirt portion of the inner stopper.

[0008] In addition, the outer cap is coupled to the inner cap in the longitudinal direction, and the support member is engaged with the inner cap to prevent the outer cap from separating from the inner cap along the longitudinal direction.

[0009] In addition, when the outer cap is rotated in the unwinding direction, the inner cap rotates together with the outer cap, and the outer cap and the inner cap can be separated from the container.

[0010] In addition, if the outer cap is rotated in the locking direction, the locking coupling is released, and the outer cap can be separated from the inner cap.

[0011] Additionally, when a plurality of regions on the outer surface of the outer cap are pressed for the above rotation, the regions pressed on the outer cap are compressed inward, and the regions not pressed on the outer cap are expanded outward, and the locking coupling of at least some of the locking parts may be released by the expansion.

[0012] In addition, the release of the above-mentioned locking coupling can be performed when the locking groove is open downward.

[0013] Additionally, during rotation of the outer cap in the locking direction, the locking portion may be worn or deformed by the connecting portion, thereby releasing the locking coupling.

[0014] In addition, a plurality of the above-mentioned support members may be clustered to form a plurality of support member groups, wherein the plurality of support member groups are spaced apart from each other, and the spacing distance between the support members within the support member groups may be smaller than the spacing distance between the support member groups.

[0015] In addition, when the inner plug is inserted into the receiving space, the guide portion is deformed by the inner plug so as to face the side wall, and an elastic force directed toward the inner plug may be generated in the guide portion.

[0016] In addition, a resistance member that resists bending of the guide member may be provided between the guide member and the side wall.

[0017] In addition, the guide portion may have a tapered shape.

[0018] Additionally, the inner stopper may include: an inner stopper body comprising an upper wall and a side wall forming a receiving space into which the spout of the container part is inserted inwardly; an inner stopper attachment part provided along the outer perimeter of the side wall of the inner stopper body and engaging with an outer stopper attachment part; a skirt part formed to be spaced downward from the inner stopper body and to wrap around the lower end of the spout part; and at least one connecting part connecting the inner stopper body and the skirt part.

[0019] Additionally, when the inner plug is separated from the container portion, at least a portion of the connecting portion is broken, and at least a portion of the skirt portion is separated from the inner plug body, thereby providing a clearance space for twisting the support portion at the bottom of the inner plug body.

[0020] In addition, the outer plug fastening portion or the inner plug fastening portion may include at least one rib formed in the longitudinal direction.

[0021] Additionally, the rib is provided with a first inclined surface facing the locking direction and a second inclined surface facing the unlocking direction, wherein the first inclined surface and the second inclined surface may have different angles of inclination.

[0022] According to an embodiment of the present application, a contents container is provided. The contents container may include a stopper assembly according to an embodiment of the present application; and a container portion coupled to the stopper assembly.

[0023] According to the embodiments of the present application, a plug assembly having a double plug structure can be provided in which an inner plug and an outer plug are firmly joined without adhesive and can be easily separated when necessary.

[0024] In addition, according to the embodiments of the present application, the outer cap and the inner cap can be easily combined by simply moving the outer cap in the longitudinal direction (i.e., the up-and-down direction) with respect to the inner cap coupled to the container part.

[0025] In addition, according to the embodiments of the present application, the stopper assembly can operate integrally with respect to the container portion by means of a locking coupling between the outer stopper and the inner stopper. Specifically, when the outer stopper is rotated in an unlocking direction or a locking direction, the inner stopper rotates simultaneously to open and close the container portion.

[0026] In addition, according to the embodiments of the present application, when the outer cap is rotated in a locking direction while the inner cap is coupled to the container part, the locking coupling is released, so that the outer cap can be easily separated from the inner cap.

[0027] In addition, according to the embodiments of the present application, even if the inner cap and the outer cap are made of different materials, they are easy to separate and dispose of, resulting in excellent recyclability.

[0028] The effects obtainable from the embodiments of the present application are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present application belongs from the description below.

[0029] A brief description of each drawing is provided to help to better understand the drawings cited in this application.

[0030] FIG. 1 is a perspective view of a contents container according to an embodiment of the present application.

[0031] FIG. 2 is an exploded perspective view of a contents container according to an embodiment of the present application.

[0032] FIG. 3 is a cross-sectional view of an outer cap of a contents container according to an embodiment of the present application.

[0033] FIG. 4 is a cross-sectional view of a contents container according to an embodiment of the present application.

[0034] FIG. 5 is a bottom perspective view of a contents container according to an embodiment of the present application.

[0035] FIG. 6 is a drawing for explaining the operation process of a contents container according to an embodiment of the present application.

[0036] FIG. 7 is a drawing for explaining the operation process of a contents container according to an embodiment of the present application.

[0037] FIG. 8 is a drawing for explaining the operation process of a contents container according to an embodiment of the present application.

[0038] FIG. 9 is a drawing for explaining the operation process of a contents container according to an embodiment of the present application.

[0039] FIG. 10 is a drawing for explaining the operation process of a contents container according to an embodiment of the present application.

[0040] Hereinafter, embodiments of the present application will be described in detail with reference to the contents described in the attached drawings. Identical reference numbers or symbols presented in each drawing indicate parts or components that perform substantially the same function. For convenience of reference, the directions of up, down, left, and right described below are based on the drawings, and the scope of the rights of the present application is not limited to such directions.

[0041] In describing the technical concept of the present application, detailed descriptions of related prior art are omitted if it is determined that such descriptions would unnecessarily obscure the essence of the present application. Furthermore, numbers used in the description of the present application (e.g., First, Second, etc.) are merely identification symbols to distinguish one component from another.

[0042] The terms used herein are for the purpose of describing embodiments and are not intended to limit or / or restrict the present application. Singular expressions include plural expressions unless the context clearly indicates otherwise. When a part is described as being connected to another part in this specification, this includes not only cases where they are directly connected but also cases where they are indirectly connected with other components in between. Furthermore, when a part is described as including a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0043] Furthermore, in this application, the term "or" is intended to mean an implicit "or" rather than an exclusive "or." That is, unless otherwise specified or evident from the context, "X uses A or B" is intended to mean one of the natural implicit substitutions. In other words, if X uses A; if X uses B; or if X uses both A and B, "X uses A or B" may apply to any of these cases. Additionally, the term "and / or" as used herein should be understood to refer to and include all possible combinations of one or more of the enumerated related configurations.

[0044] Furthermore, it is intended to clarify that the classification of the components in this application is merely based on the primary function each component is responsible for. That is, two or more components described below may be combined into a single component, or a single component may be divided into two or more components based on more subdivided functions. Additionally, each component described below may additionally perform some or all of the functions performed by other components in addition to its own primary function, and it is obvious that some of the primary functions performed by each component may be exclusively performed by other components.

[0045]

[0046] FIG. 1 is a perspective view of a contents container according to an embodiment of the present application, FIG. 2 is an exploded perspective view of a contents container according to an embodiment of the present application, FIG. 3 is a cutaway view of an outer cap of a contents container according to an embodiment of the present application, and FIG. 4 is a cross-sectional view of a contents container according to an embodiment of the present application.

[0047] Referring to FIGS. 1 to 4, the contents container (1000) may include a stopper assembly (100, 200) and a container part (300).

[0048] The stopper assembly (100, 200) can be detachably coupled to the container portion (300) to open and close the container portion (300). Specifically, the stopper assembly (100, 200) may include an outer stopper (100); and an inner stopper (200) inserted into the inner side of the outer stopper (100). Within the stopper assembly (100, 200), the outer stopper (100) and the inner stopper (200) may operate as a single unit or be separated.

[0049] The outer cap (100) accommodates the inner cap (200) on the inside to protect the inner cap (200), and at the same time, can receive external force from the user for the operation of the cap assembly (100, 200). The outer cap (100) can open and close the container part (300) together with the inner cap (200), and the outer cap (100) can also be separated from the inner cap (200).

[0050] Specifically, the outer plug (100) may include an outer plug body (110) comprising an upper wall (111) and a side wall (112) that form a receiving space into which an inner plug (200) is inserted; an outer plug fastening part (120) provided along the inner circumference of the side wall (112) to rotate synchronously or relative to the inner plug (200); and at least one support part (130) that prevents the inner plug (200) from coming off by engaging with the inner plug (200) inserted into the receiving space.

[0051] In an embodiment, the upper wall (111) forms a ceiling structure covering the top of the inner plug (200), and the side wall (112) forms a structure wrapping the side of the inner plug (200) to provide a receiving space into which the inner plug (200) is inserted. The side wall (112) may be, for example, a cylindrical structure, but is not limited thereto.

[0052] In an embodiment, a pattern consisting of a predetermined projection and / or groove may be formed on at least one area of ​​the outer surface of the side wall (112). This prevents slipping when a user grips the outer cap (100) or applies external force.

[0053] In an embodiment, the outer cap fastening portion (120) is formed to engage with the inner cap fastening portion (220) of the inner cap (200), and according to this engagement, the outer cap (100) can rotate synchronously or relative to the inner cap (200).

[0054] For example, the outer cap fastening portion (120) may be composed of a plurality of parts and formed spaced apart along the inner circumference of the side wall (112). For example, the outer cap fastening portion (120) may include a protrusion or groove formed along the longitudinal direction (or vertical direction). For example, the outer cap fastening portion (120) may include a rib. However, it is not limited thereto.

[0055] In the embodiment, the outer cap fastening portion (120) is formed in the longitudinal direction, and correspondingly, the inner cap fastening portion (220) may also be formed in the longitudinal direction. Accordingly, the outer cap (100) can move in the longitudinal direction relative to the inner cap (200).

[0056] In an embodiment, the rib of the outer cap fastening portion (120) is provided with a first inclined surface facing the locking direction and a second inclined surface facing the unlocking direction, wherein the first inclined surface and the second inclined surface may correspond to each other or have different angles of inclination. By adjusting the first inclined surface or the second inclined surface, the coupling according to the rotational direction can be adjusted.

[0057] For example, the first slope may be gentler than the second slope. This allows the outer cap (100) to rotate synchronously when the outer cap (100) rotates in the unlocking direction, and conversely, when the outer cap (100) rotates in the locking direction, the outer cap (100) may rotate relative to the inner cap (200). However, it is not limited to this.

[0058] In an embodiment, the support member (130) may include a guide member (131) extending from a side wall (112); and a catch member (132) formed protruding from one area of ​​the guide member (131).

[0059] In an embodiment, the guide portion (131) is provided in multiple numbers and may extend inward from the side wall (112). For example, each guide portion (131) may extend toward the center of the inner side. Facing inward may mean facing the inner centerline of the outer cap (100). According to an embodiment, the centerline may not be limited to the interior of the outer cap (100) but may also extend to the exterior (upper or lower side) of the outer cap (100).

[0060] In an embodiment, when an inner plug (200) is inserted into the inner side of an outer plug (100), the guide portion (131) may be deformed to face the side wall (112) of the outer plug (100) while being pushed by the upper wall (211) or side wall (212) of the inner plug (200).

[0061] Specifically, the guide portion (131) may be rotated (or bent) toward the inner surface with respect to the fixed end in contact with the side wall (112). The deformation of the guide portion (131) may be, for example, elastic deformation. When the guide portion (131) is deformed in this way, a restoring force may be generated in the guide portion (131) to restore it to its original position and state.

[0062] In the embodiment, the restoring force of the guide portion (131) can press the outer surface of the inner plug (200). This assists in the positional alignment of the inner plug (200) and further enables the catch portion (132) to be properly inserted into the catch groove of the inner plug (200).

[0063] In the embodiment, when the catch portion (132) is engaged with the inner cap (200), the guide portion (131) may come into contact with the outer surface of the inner cap (200). In this state, if an external force is applied to the outer cap (100) to forcibly detach the catch portion (132) from the catch groove of the inner cap (200), the guide portion (131) may resist the external force and maintain the engagement.

[0064] Specifically, for the locking part (132) to detach, the shape of the guide part (131) must be deformed (e.g., bending) by an external force, but the detachment of the locking part (132) can be prevented by the guide part (131) resisting such shape deformation. In particular, the outer surface of the inner plug (200) can support the guide part (131) by contacting at least one area of ​​the guide part (131), thereby assisting the resistance of the guide part (131).

[0065] In an embodiment, a resistance member (133) that resists bending of the guide member (131) may be provided between the guide member (131) and the side wall (112). When the guide member (131) is deformed toward the side wall (112), the resistance member (133) supports the guide member (131) to prevent or reduce deformation.

[0066] In an embodiment, the locking portion (132) can be inserted into a locking groove formed in the inner plug (200) to form a locking connection. The locking connection can prevent the inner plug (200) from being separated from the outer plug (100).

[0067] Specifically, when the outer cap (100) is rotated to release the outer cap (100) and the inner cap (200) are separated from the container part (300), the inner cap (200) is not separated from the outer cap (100) by the locking connection, and the cap assembly (100, 200) can be maintained together with the outer cap (100).

[0068] In an embodiment, when the inner stopper (200) is in a state where it is rotated fixed (e.g., when the stopper assembly (100, 200) is coupled with the container part (300), if the outer stopper (100) is rotated in a locking direction (clockwise), the locking coupling is released and the outer stopper (100) can be separated from the inner stopper (200).

[0069] In the embodiment, separation of the outer cap (100) through rotation of the outer cap (100) may be achieved when the locking groove in the inner cap (200) is open upward or downward. For example, the locking groove may be opened downward by separating the skirt portion (230) or separating it from the inner cap body (210). However, it is not limited thereto.

[0070] In an embodiment, the locking portion (132) may include an upper surface and a lower surface. Here, the upper surface is a surface facing upward based on the state in which the locking portion (132) is engaged with the inner plug (200), and the lower surface may mean a surface opposite to the upper surface. The upper surface may have a predetermined slope. In this case, the slope may be based on the longitudinal direction (or the vertical direction). That is, the upper surface is an inclined surface that engages with the inner plug (200), but when a relatively strong external force is applied, the locking portion (132) may be disengaged from the locking groove along the inclined surface. However, it is not limited thereto.

[0071] In the embodiment, the guide portion (131) may be extended from the side wall (112) so that its width decreases. That is, the guide portion (131) may have a tapered shape. Through this, when the inner plug (200) is inserted into the inner side of the outer plug (100) and the guide portion (131) is deformed by rotation (or bending) toward the side wall (112) of the outer plug (100) by the inner plug (200), interference can be prevented even if the guide portions (131) are close to each other.

[0072] In the embodiment, when the outer cap (100) is rotated in the locking direction while the inner cap (200) is rotated fixed, torsional deformation may occur in the guide portion (131). The torsional deformation may mean that the guide portion (131) rotates (or bends) along the circumference of the side wall (112) around the fixed end. Such torsional deformation may cause the locking portion (132) to detach from the locking groove, thereby releasing the locking coupling.

[0073] In the embodiment, when the locking coupling is formed, the locking part (132) can be in close contact with the locking groove of the inner cap (200). In particular, the upper surface of the locking part (132) can be in close contact with the upper surface of the locking groove (i.e., the lower surface of the inner cap body (210)). Therefore, when the outer cap (100) is rotated in the locking direction while the inner cap (200) is rotated fixed, the locking part (132) may be worn or deformed (e.g., twisted, etc.) due to the frictional force between the locking part (132) and the locking groove, and thus detach from the locking groove.

[0074] In an embodiment, when the outer cap (100) is rotated in a locking direction while the inner cap (200) is rotated fixed, the locking part (132) may come into contact with the connecting part (240) during rotation. At this time, if the rotation of the outer cap (100) continues, the rotation is obstructed by the connecting part (240), causing the locking part (132) to wear out or deform (e.g., twisting, etc.), or the guide part (131) to deform (e.g., twisting, etc.), and the locking part (132) may detach from the locking groove.

[0075] According to an embodiment, the rotation of the outer cap (100) in the locking direction for separating the outer cap (100) may be a pulling rotation. A pulling rotation may mean that rotation and a pulling motion (upward) occur simultaneously. Through the pulling rotation, greater wear or deformation may occur on the support portion (130) or the locking portion (132) of the outer cap (100).

[0076] In the embodiment, when the outer cap (100) is rotated, sufficient twisting may occur in the guide portions (131) due to the spacing between the guide portions (131). The spacing between the guide portions (131) may be due to the arrangement of the guide portions (131) (particularly, the fixed end) or the reduction in the width of the guide portions (131).

[0077] In an embodiment, a plurality of support members (130) are clustered to form a plurality of support member groups, and the plurality of support member groups are spaced apart from each other, and the spacing between support members (130) within a support member group may be smaller than the spacing between support member groups.

[0078] In the embodiment, the locking coupling force can be adjusted by controlling the number of support members (130), the spacing between support members (130), or the spacing between groups of support members. For example, the locking coupling force can be adjusted such that when a user rotates the outer cap (100) in the locking direction with a relatively strong external force, the outer cap (100) separates from the inner cap (200), but when the user rotates it in the locking direction with a relatively weak external force or pulls the outer cap (100) in the longitudinal direction (e.g., upward), the outer cap (100) does not separate from the inner cap (200).

[0079] The inner stopper (200) can be detachably coupled to the spout (320) of the container part (300). The inner stopper (200) can open and close the container part (300) by rotating with the outer stopper (100). Additionally, when the outer stopper (100) is separated from the inner stopper (200), the inner stopper (200) can open and close the container part (300) by receiving an external force from the user and rotating.

[0080] Specifically, the inner stopper (200) may include: an inner stopper body (210) comprising an upper wall (211) and a side wall (212) that form a receiving space into which the spout (320) of the container part (300) is inserted; an inner stopper attachment part (220) provided along the outer circumference of the side wall (212) of the inner stopper body (210) and engaged with the outer stopper attachment part (120); a skirt part (230) formed to be spaced downward from the inner stopper body (210) and to wrap around the lower end of the spout part (320); and at least one connecting part (240) connecting the inner stopper body (210) and the skirt part (230).

[0081] In an embodiment, the inner stopper (200) can be screw-coupled to the container portion (300). To this end, screw threads for rotation may be formed on the inner surface of the side wall (212) of the inner stopper (200), and correspondingly, screw threads may also be formed on the outer surface of the spout portion (320) of the container portion (300).

[0082] In an embodiment, the inner plug attachment portion (220) is formed to engage with the outer plug attachment portion (120) of the outer plug (100), and according to this engagement, the inner plug (200) is capable of synchronous rotation or relative rotation with respect to the outer plug (100).

[0083] For example, the inner plug fastening portion (220) may be composed of a plurality of parts and formed spaced apart along the outer perimeter of the side wall (212). For example, the inner plug fastening portion (220) may include a protrusion or groove formed along the longitudinal direction (or vertical direction). For example, the inner plug fastening portion (220) may include a rib. However, it is not limited thereto.

[0084] In an embodiment, the rib of the inner plug fastening portion (220) is provided with a first inclined surface facing the locking direction and a second inclined surface facing the unlocking direction, wherein the first inclined surface and the second inclined surface may correspond to each other or have different angles of inclination. By adjusting the first inclined surface or the second inclined surface, the coupling according to the rotational direction can be adjusted. However, it is not limited thereto.

[0085] In an embodiment, a catch groove may be formed on the lower side of the inner plug body (210). Specifically, the catch groove may be a space defined by the inner plug body (210), the skirt portion (230), and the connecting portion (240). A catch portion (132) of the outer plug (100) may be inserted into the catch groove to form a catch connection. The catch groove refers to a recessed area of ​​a predetermined depth for catch connection, and according to an embodiment, the recessed area may include a penetration area.

[0086] In the embodiment, when the inner stopper (200) is separated from the container portion (300), at least a portion of the connecting portion (240) may be broken. Specifically, the skirt portion (230) may be formed to wrap around the lower end of the spout portion (320), and in particular, to wrap around the inner inlet area of ​​the lower end of the spout portion (320). Thus, when the inner stopper (200) is separated from the container portion (300), the movement of the skirt portion (230) is obstructed by the lower end of the spout portion (320), and the connecting portion (240) may be broken. At this time, the entire connecting portion (240) may be broken, or a portion of the connecting portion (240) may be broken.

[0087] In an embodiment, depending on the breakage of the connecting portion (240), the skirt portion (230) may be separated from the inner plug (200) or separated from the inner plug body (210), thereby opening the lower end of the inner plug body (210) beyond the catch groove. That is, at least a portion of the skirt portion (230) may be separated from the inner plug body (210), thereby providing a clearance space for twisting the support portion (130) at the lower end of the inner plug body (210). Alternatively, if the skirt portion (230) is not separated from the inner plug body (210), the upper end of the skirt portion (230) may support the support portion (130) or the catch portion (132), thereby preventing or reducing deformation of the support portion (130) or the catch portion (132).

[0088] The container portion (300) has an open top side and can form a receiving space inside. Liquid contents can be contained in the receiving space. The liquid contents may be edible contents such as, for example, water, savory foods (soft drinks, coffee, tea, etc.), nutritional foods (milk, etc.), or health functional foods. However, it is not limited thereto, and for example, solid contents or medicinal contents may be contained in the container portion (300).

[0089] Specifically, the container portion (300) may include a receiving portion (310) forming a receiving space; and a spout portion (320) located above the receiving portion (310). Contents may be introduced or discharged through the spout portion (320).

[0090] In an embodiment, screw threads may be formed on the outer side of the spout portion (320) of the container portion (300). Through the screw threads, the container portion (300) can be screw-coupled with the inner stopper (200). Specifically, when the inner stopper (200) rotates in the unscrewing direction, the inner stopper (200) is separated from the container portion (300), and when the inner stopper (200) rotates in the locking direction, the inner stopper (200) can be coupled to the container portion (300).

[0091] In the embodiment, the spout portion (320) can be inserted into the inner side of the inner plug (200) and coupled to the inner plug (200), and in particular, the lower end of the spout portion (320) can be wrapped by the skirt portion (230) of the inner plug (200).

[0092] In the embodiment, the outer cap (100) and the inner cap (200) may be formed of the same or different materials.

[0093] In the embodiment, the inner plug (200) may be formed of a metal material capable of providing excellent sealing properties even with a thin thickness. For example, the material of the inner plug (200) may include aluminum, stainless steel, etc. In particular, aluminum may be preferred as the material of the inner plug (200) because it is lightweight, has excellent corrosion resistance, and is easy to press process. However, it is not limited thereto.

[0094] In the embodiment, the outer cap (100) may be formed from a plastic material that is easy to injection mold and recyclable. For example, the material of the outer cap (100) may include PP (polypropylene), HDPE (high-density polyethylene), ABS, etc. In particular, the material of the outer cap (100) may be PP, which is rigid and has shape deformation and elasticity. However, it is not limited thereto.

[0095] FIGS. 1 to 4 are exemplary, and various configurations may be applied according to embodiments of the present application.

[0096]

[0097] FIG. 5 is a bottom perspective view of a contents container (1000) according to an embodiment of the present application.

[0098] As shown in FIG. 5, a plurality of support members (130) are provided along the inner circumference of the side wall (112) of the outer cap (100), and the support members (130) extend downward.

[0099] According to this, when the inner plug (200) is inserted into the inner side of the outer plug (100), the support member (130) is deformed to have a large angular displacement by the outer surface of the inner plug (200). That is, a greater restoring force is generated in the support member (130), which can make the locking connection between the outer plug (100) and the inner plug (200) more secure.

[0100] FIG. 5 is exemplary, and various configurations may be applied according to embodiments of the present application.

[0101]

[0102] FIG. 6 is a drawing for explaining the operation process of a contents container (1000) according to an embodiment of the present application.

[0103] In FIG. 6, the joining process between the outer cap (100) and the inner cap (200) is illustrated. As illustrated, with the inner cap (200) joined to the container part (300), the outer cap (100) can be joined to the inner cap (200) by descending from the upper part of the inner cap (200).

[0104] Here, the outer cap fastening portion (120) of the outer cap (100) and the inner cap fastening portion (220) of the inner cap (200) may include ribs formed in the longitudinal direction (i.e., the vertical direction). Accordingly, the outer cap (100) can move in the longitudinal direction toward the inner cap (200), and in this process, the outer cap fastening portion (120) and the inner cap fastening portion (220) may interlock with each other.

[0105] Additionally, during the lowering process of the outer cap (100), the support member (130) can be deformed in shape toward the side wall (112) of the outer cap (100) by the inner cap (200), and thus a restoring force toward the inner cap (200) can be generated in the guide member (131) and the catch member (132). In this state, as the outer cap (100) continues to descend, the catch member (132) is inserted into the catch groove of the inner cap (200), and a catch connection can be formed.

[0106] FIG. 6 is exemplary, and various configurations may be applied according to embodiments of the present application.

[0107]

[0108] FIG. 7 is a drawing for explaining the operation process of a contents container (1000) according to an embodiment of the present application.

[0109] FIG. 7 illustrates the process of opening a container part (300) using a stopper assembly (100, 200). As illustrated, when the outer stopper (100) and the inner stopper (200) are joined together (i.e., locked together), if the outer stopper (100) is rotated in a loosening direction (e.g., counterclockwise), the inner stopper (200) can also rotate synchronously in a loosening direction. Such synchronous rotation may be due to the interlocking between the outer stopper attachment part (120) and the inner stopper attachment part (220).

[0110] Due to rotation, the connecting portion (240) in the inner stopper (200) may be broken. In FIG. 7, only one connecting portion (240) is maintained, but according to the embodiment, all connecting portions (240) may be broken. Such breaking may be caused by the skirt portion (230) of the inner stopper (200). That is, the skirt portion (230) wraps not only the lower area of ​​the spout portion (320) of the container portion (300) but also the inner inlet area of ​​the lower portion, thereby generating resistance to the upward movement of the inner stopper (200) and causing the connecting portion (240) having a relatively weak connection to break. By breaking the connecting portion (240), the skirt portion (230) separates from the inner stopper body (210), thereby securing a clearance space for twisting the support portion (130).

[0111] If the outer cap (100) is continuously rotated in the unwinding direction, the outer cap (100) and the inner cap (200) can be separated from the container part (300). At this time, the inner cap (200) is not separated from the outer cap (100) and can be maintained as a single unit due to the locking connection between the outer cap (100) and the inner cap (200).

[0112] FIG. 7 is exemplary, and various configurations may be applied according to embodiments of the present application.

[0113]

[0114] FIG. 8 is a drawing for explaining the operation process of a contents container (1000) according to an embodiment of the present application.

[0115] FIG. 8 illustrates the process in which the outer cap (100) is separated from the inner cap (200) while the cap assembly (100, 200) is connected to the separation member (400) after being separated from the container part (300) as in FIG. 7, for example.

[0116] As illustrated, the skirt portion (230) is separated from the inner stopper (200). The separation of the skirt portion (230) may occur during the process in which the stopper assembly (100, 200) is separated from the container portion (300) by unwinding rotation while the stopper assembly (100, 200) is connected to the container portion (300).

[0117] In FIG. 8, the skirt portion (230) is shown as being completely separated, but this is exemplary, and the skirt portion (230) may be connected by at least one connecting portion (240) and at least partially separated from the inner plug body (210).

[0118] A stopper assembly (100, 200) separated from a container part (300) can be coupled to a separating member (400). The separating member (400) may be the same member as the container part (300) or a separate member for separating the outer stopper (100). The separating member (400) may have a spout part with threads formed thereon for coupling with the inner stopper (200), just like the container part (300), and thus the stopper assembly (100, 200) can be rotatably coupled (or screw-coupled) to the separating member (400).

[0119] As illustrated, the outer cap (100) can be rotated in the locking direction (i.e., clockwise) while the inner cap (200) is coupled to the separating member (400).

[0120] In this way, even if the outer cap (100) rotates in the locking direction, the inner cap (200) does not rotate because the screw connection with the separation member (400) is completed (i.e., further rotation in the locking direction is difficult). At this time, the outer cap attachment part (120) and the inner cap attachment part (220) that interlock with each other cause resistance to rotation in the locking direction, so a greater external force is required for the locking rotation of the outer cap (100).

[0121] Additionally, a rotational movement of the outer cap (100) can release the locking coupling of the locking part (132). Specifically, the support part (130) or the locking part (132) may be worn or deformed (e.g., twisted), causing the locking part (132) to detach from the locking groove, thereby releasing the locking coupling.

[0122] When the outer cap (100) is continuously pulled upward while the locking connection is released, the outer cap (100) is separated from the inner cap (200), and the inner cap (200) can maintain a connected state with the separation member (400).

[0123] When the locking coupling is released, the outer cap (100) can be separated by pulling alone without the need to rotate the outer cap (100), but according to the embodiment, rotation in the locking direction of the outer cap (100) and pulling may be performed simultaneously. This is for the continuity of operation.

[0124] FIG. 8 is exemplary, and various configurations may be applied according to embodiments of the present application.

[0125]

[0126] FIG. 9 is a drawing for explaining the operation process of a contents container (1000) according to an embodiment of the present application.

[0127] In FIG. 9, an outer cap (100) separated from an inner cap (200) is shown. Specifically, the support portion (130) of the outer cap (100) can be seen deformed by twisting.

[0128] As illustrated, the support members (130) formed on the inner side of the outer cap (100) may be deformed from their original shape by a twisting force generated during the process of releasing the connection with the inner cap (200), and this deformation may cause the alignment of the catch member (132) to be distorted, thereby allowing the catch member (132) to easily detach from the catch groove.

[0129] Such deformation of the support member (130) may be due to the gap between the support members (130) and the clearance space at the bottom of the support member (130). In the former case, it is implemented by the support member (130) being spaced apart and / or the support member (130) having a tapered shape, and in the latter case, it may be provided by the skirt member (230) being spaced apart from the inner plug body (210) by the breakage of the connecting member (240).

[0130] For example, if the skirt portion (230) is not separated from the inner stopper body (210) (especially, if the stopper assembly (100, 200) does not open the container portion (300) and the connecting portion (240) is not broken, etc.), even if the outer stopper (100) is rotated, the locking portion (132) is supported by the upper end of the skirt portion (230), so that twisting deformation as shown in the illustration may not occur.

[0131] As illustrated, a portion of the support member (130) may be deformed by twisting. That is, even if no twisting deformation occurs in all of the support members (130), if the locking portion (132) of some of the support members (130) disengages from the locking groove and releases the locking connection, the overall connection force is reduced, so the user can more easily separate the outer cap (100) from the inner cap (200). However, it is not limited to this.

[0132] FIG. 9 is exemplary, and various configurations may be applied according to embodiments of the present application.

[0133]

[0134] FIG. 10 is a drawing for explaining the operation process of a contents container (1000) according to an embodiment of the present application.

[0135] Figure 10 shows a plan view of the outer cap (100) that undergoes shape deformation when the outer cap (100) rotates (particularly, rotation in the locking direction).

[0136] As illustrated, when separating the outer cap (100) from the inner cap (200), the outer cap (100) can be rotated by applying pressure to a plurality of regions (i.e., pressure regions) on the outer surface of the outer cap (100). By applying pressure, the pressure regions are compressed toward the center of the outer cap (100), and conversely, the regions that are not pressured (i.e., non-pressure regions) can expand in the opposite direction. For example, if the outer cap (100) is circular, the outer cap (100) can be changed into an elliptical shape by applying pressure.

[0137] At least one support member (130) may be located in the non-pressure area. Therefore, due to the expansion of the non-pressure area, the catch member (132) may detach from the catch groove, or at least the catch coupling force may be weakened. Thus, the user can more easily separate the outer cap (100) from the inner cap (200).

[0138] FIG. 10 is exemplary, and various configurations may be applied according to embodiments of the present application.

[0139]

[0140] As described above, embodiments have been disclosed in the drawings and specification. Those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the substantial scope of this application shall be defined by the appended claims and their equivalents.

Claims

1. As a stopper assembly, It includes an outer plug; and an inner plug inserted into the inner side of the outer plug. The outer plug comprises: an outer plug body including an upper wall and a side wall forming a receiving space into which the inner plug is inserted; an outer plug attachment part provided along the inner circumference of the side wall to rotate synchronously or relative to the inner plug; and at least one support part that engages with a catch groove of the inner plug inserted into the receiving space to prevent the inner plug from coming off. The above support members are spaced apart from each other along the inner perimeter of the side wall and include a guide member extending from the side wall; and a locking member formed to protrude from one area of ​​the guide member. The above-mentioned catch groove is a stopper assembly defined by the inner stopper body, connecting part, and skirt part of the above-mentioned inner stopper.

2. In Paragraph 1, A stopper assembly in which the outer stopper is coupled to the inner stopper in the longitudinal direction, and the support member is engaged with the inner stopper to prevent the outer stopper from being separated from the inner stopper along the longitudinal direction.

3. In Paragraph 1, A stopper assembly in which, when the outer stopper is rotated in the unwinding direction, the inner stopper rotates together with the outer stopper, and the outer stopper and the inner stopper are separated from the container portion.

4. In Paragraph 1, A stopper assembly in which, when the outer stopper is rotated in the locking direction, the locking coupling is released and the outer stopper is separated from the inner stopper.

5. In Paragraph 4, When a plurality of regions on the outer surface of the outer cap are pressurized for the above rotation, the pressurized regions of the outer cap are compressed inward, and the non-pressurized regions of the outer cap expand outward. A plug assembly in which at least some of the locking parts are released by the above expansion.

6. In Paragraph 4, A plug assembly in which the release of the above-mentioned locking coupling is performed with the above-mentioned locking groove open downward.

7. In Paragraph 4, A stopper assembly in which, during rotation of the outer stopper in the locking direction, the locking portion is worn or deformed by the connecting portion, thereby releasing the locking coupling.

8. In Paragraph 1, A plurality of the above-mentioned support members are clustered to form a plurality of support member groups, wherein the plurality of support member groups are spaced apart from each other, and A plug assembly in which the spacing between the support members within the support member group is smaller than the spacing between the support member groups.

9. In Paragraph 1, A plug assembly having a resistance member that resists bending of the guide member between the guide member and the side wall.

10. In Paragraph 1, The above guide portion is a plug assembly having a tapered shape.

11. In Paragraph 1, The inner stopper assembly comprises: an inner stopper body including an upper wall and a side wall forming a receiving space into which the spout portion of the container portion is inserted inwardly; an inner stopper attachment portion provided along the outer circumference of the side wall of the inner stopper body and engaging with an outer stopper attachment portion; a skirt portion formed to be spaced downward from the inner stopper body and to surround the lower end of the spout portion; and at least one connecting portion connecting the inner stopper body and the skirt portion.

12. In Paragraph 11, A stopper assembly in which, when the inner stopper is separated from the container portion, at least a portion of the connecting portion is broken, and at least a portion of the skirt portion is separated from the inner stopper body, and a clearance for twisting of the support portion is provided at the bottom of the inner stopper body.

13. In Paragraph 11, A stopper assembly comprising at least one rib formed in the longitudinal direction, wherein the outer stopper fastening portion or the inner stopper fastening portion comprises 14. In Paragraph 13, A stopper assembly wherein the above rib has a first inclined surface facing the locking direction and a second inclined surface facing the unlocking direction, wherein the first inclined surface and the second inclined surface have different angles of inclination.

15. A plug assembly according to any one of claims 1 to 14; and A contents container comprising a container portion that combines with the above-mentioned stopper assembly.

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