Container closure and container coupled thereto

Abstract

The present invention relates to a container closure and a container coupled thereto. The present invention includes an inner cup portion 200 coupled to the container inlet 20 of a container 10 containing a first substance 1, and containing a second substance 2 to be mixed with the first substance 1, and an outer lid 100 coupled to the container inlet 20 so as to cover the inner cup portion 200 coupled to the container inlet 20, wherein the inner cup portion 200 includes an inner cup portion side wall portion 210 inserted inside the container inlet 20, and at the upper end of the inner cup portion side wall portion 210 is attached to at least one of the outer lid 100 and the container inlet 20 The present invention presents a container closure comprising a supported cup coupling portion 220 and a bottom portion 230 integrally or detachably coupled to the lower end of the inner cup portion side wall portion 210, forming a storage space SS in which a second substance 2 is contained, wherein the outer lid 100 comprises an outer lid side wall portion 110 screw-coupled to the container inlet 20 and a pressing portion 300 provided to be vertically movable inside the outer lid side wall portion 110, which pressurizes the bottom portion 230 by descending to open the storage space SS downward.

Description

Technical Field

[0001] The present invention relates to a container closure and a container coupled thereto.

Background Art

[0002] Containers generally have a container inlet formed therein for containing a liquid, powder or granular substance and being opened and closed by a container cap.

[0003] On the other hand, depending on beverages, health supplements, special drugs, etc., there are cases where a liquid first substance and a powder or granular second substance are mixed for drinking or use.

[0004] In particular, there are cases where the first substance and the second substance are stored separately and are required to be mixed at the time of drinking or use. In order to reflect such requirements, a container cap structure having a structure such as that of Patent Document 1 has been presented.

[0005] The container cap structure described in Patent Document 1 is characterized in that it is composed of a storage cup inserted into the container inlet, a perforation cutter for breaking the lower end of the storage cup, and an external cap having a pressing portion.

[0006] However, although the container cap structure described in Patent Document 1 has been considerably improved, it is composed of three members, so the manufacturing cost of the mold for forming the three members and the process for assembling the three members are performed three times, and there is a problem that the manufacturing process is complicated and the manufacturing cost increases.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0008] The object of the present invention is to provide a container closure and a container coupled thereto that can reduce manufacturing costs and simplify the manufacturing process by constructing a container closure that stores a first substance and a second substance separately and mixes them together when used, by implementing this with an inner cup portion and an outer lid, in order to solve the above-mentioned problems. [Means for solving the problem]

[0009] The present invention was created to achieve the above-mentioned objectives of the present invention, and presents a container closure comprising: an inner cup portion coupled to the container inlet of a container containing a first substance and containing a second substance to be mixed with the first substance; and an outer lid coupled to the container inlet so as to cover the inner cup portion coupled to the container inlet, wherein the inner cup portion comprises an inner cup portion side wall portion inserted into the inside of the container inlet; a cup coupling portion supported by at least one of the outer lid and the container inlet at the upper end of the inner cup portion side wall portion; and a bottom portion integrally or detachably coupled to the lower end of the inner cup portion side wall portion and forming a storage space for containing the second substance, wherein the outer lid comprises an outer lid side wall portion screw-coupled to the container inlet; and a pressing portion provided vertically movable inside the outer lid side wall portion and pressing the bottom portion by downward movement to open the storage space downward.

[0010] The pressing portion may include a pressing plate located in the center of the inner side wall of the outer lid, with a punch portion extending downward from its bottom surface to press against the bottom, and an elastic membrane connecting the inner side wall of the outer lid and the pressing plate so that the pressing plate can move up and down. The punch portion may include an annular punch portion that is open at the bottom and inserted in close contact with the inner circumferential surface of the inner cup portion side wall.

[0011] The annular punch portion may have a blade portion formed at its lower end to break the bottom portion.

[0012] The punch portion may further have a central pressing portion formed inside the annular punch portion that presses against the bottom portion such that the bottom portion curves upward.

[0013] When the outer lid is connected to the container opening, a rim portion that directly or indirectly comes into close contact with the upper end of the container opening may be formed extending inward from the inner circumferential surface of the outer lid side wall.

[0014] When the outer lid is connected to the container opening, the rim portion may be in direct contact with the upper end of the container opening.

[0015] The outer lid may have an inner side wall portion extending downward from the lower end of the rim portion, wherein at least a portion of its outer peripheral surface is in close contact with the inner peripheral surface of the container opening, and at least a portion of its inner peripheral surface is in close contact with the outer peripheral surface of the inner cup portion side wall portion.

[0016] The cup coupling portion may be fixedly bonded to the inner circumferential surface of the outer lid by irregularities.

[0017] The bottom portion may be formed integrally with the inner cup portion side wall portion, and a separation groove may be formed in the portion connected to the inner cup portion side wall portion so as to break when pressed by the pressing portion.

[0018] The bottom portion may include a sealing member that is adhered to the side wall of the inner cup portion and is broken when pressed by the pressing portion.

[0019] The bottom portion may include a cover member that is connected to the inner cup portion side wall and separated from the inner cup portion side wall by the pressing portion.

[0020] When the outer lid is connected to the container opening, the rim portion may pressurize the cup connection portion of the inner cup portion, which is supported at the upper end of the container opening, from above.

[0021] An auxiliary cup part for accommodating a third substance to be mixed with the first substance and the second substance is coupled to the inner cup part. The auxiliary cup part is inserted inside the container inlet, and includes an auxiliary cup part side wall part into which the inner cup part is inserted, an auxiliary cup part wing part supported by at least one of the outer lid and the container inlet at an upper end of the auxiliary cup part side wall part, and an auxiliary cup part bottom part integrally or detachably coupled to a lower end of the auxiliary cup part side wall part to form an auxiliary space for accommodating the third substance. The auxiliary cup part bottom part may be pressed by the pressing part together with the bottom part, and the auxiliary space may be opened.

[0022] The present invention presents a container containing a first substance, and a container to which a container closure having the above-described characteristics is coupled.

Advantages of the Invention

[0023] In constructing a container closure that stores the first substance and the second substance separately and mixes them with each other during use, the container closure and the container coupled thereto according to the present invention can reduce manufacturing costs and simplify the manufacturing process by being realized with an inner cup part and an outer lid.

[0024] In particular, the container closure and the container coupled thereto according to the present invention have the advantage of reducing the assembly process by one time and also reducing the mold manufacturing cost by integrating a punching cutter and an external cap in the container closure described in Patent Document 1.

Brief Description of the Drawings

[0025] [Figure 1] It is a cross-sectional view showing a container closure and a container coupled thereto according to a first embodiment of the present invention. [Figure 2A] It is a cross-sectional view showing an outer lid of the container closure shown in FIG. 1. [Figure 2B] It is a cross-sectional view showing a storage cup of the container closure shown in FIG. 1. [Figure 3] It is a cross-sectional view showing the operation of the container closure shown in FIG. 1. [Figure 4] Figures 1 to 3 are bottom views showing the bottom surface of the outer lid of the container closure. [Figure 5] As a modification of the present invention, this is a cross-sectional view showing a container closure and a container coupled thereto according to a second embodiment of the present invention. [Figure 6] Figure 5 is a cross-sectional view showing the operation of the container closure. [Figure 7] As a modification of the present invention, this is a cross-sectional view showing a container closure and a container coupled thereto according to a third embodiment of the present invention. [Figure 8] As a modification of the present invention, this is a cross-sectional view showing a container closure and a container coupled thereto according to a fourth embodiment of the present invention. [Figure 9A] Figure 8 is a cross-sectional view showing the outer lid of the container closure. [Figure 9B] Figure 8 is a cross-sectional view showing the storage cup of the container closure. [Figure 10] Figure 8 is a cross-sectional view showing the operation of the container closure. [Figure 11] Figures 7 to 10 are bottom views showing the bottom surface of the outer lid of the container closure. [Figure 12] As a modification of the present invention, this is a cross-sectional view showing a container closure and a container coupled thereto according to a fifth embodiment of the present invention. [Figure 13] Figure 12 is a cross-sectional view showing the operation of the container closure. [Figure 14] As a modification of the present invention, this is a cross-sectional view showing a container closure and a container coupled thereto according to the sixth embodiment of the present invention. [Best Mode for Carrying Out the Invention]

[0026] The container closure and the container coupled thereto according to the present invention will be described below with reference to examples and the accompanying drawings.

[0027] First, the present invention is characterized by a container closure, and the container closure substantially does not change the structure of the container, particularly the container inlet, although some parts can be modified depending on the structure of the container closure described later.

[0028] The container 10 is a container that holds the first substance 1, and any configuration that includes a container inlet 20 is acceptable.

[0029] Here, the first substance 1 is a substance that is mixed with the second substance 2 and the third substance 3, which will be described later. Regardless of the form the substance takes, such as liquid or powder, any substance that can be contained in a container and can be mixed with the second and third substances is acceptable.

[0030] Furthermore, the second substance 2 and the third substance 3 are substances that fall from the container closure and mix with the first substance 1, which is contained in the container 10. Any substance that can mix with the first substance is acceptable.

[0031] However, considering examples of use of the container closure according to the present invention, the first substance 1 is preferably in liquid form, and the second substance 2, described later, and the third substance 3 are preferably in powder form.

[0032] The container closure according to the present invention includes an inner cup portion 200 that is coupled to the container inlet 20 of a container 10 containing a first substance 1 and contains a second substance 2 to be mixed with the first substance 1, and an outer lid 100 that is coupled to the container inlet 20 so as to cover the inner cup portion 200 coupled to the container inlet 20.

[0033] The inner cup portion 200 is connected to the container inlet 20 of the container 10 containing the first substance 1, and is configured to contain the second substance 72 which is mixed with the first substance 1, and various configurations are possible.

[0034] For example, the inner cup portion 200 is made of a plastic material, taking into consideration that it is manufactured by injection molding, and includes an inner cup portion side wall portion 210 that is inserted inside the container inlet 20, a cup coupling portion 220 that is supported at the upper end of the inner cup portion side wall portion 210 by at least one of the outer lid 100 and the container inlet 20, and a bottom portion 230 that is integrally or detachably coupled to the lower end of the inner cup portion side wall portion 210 and forms a storage space SS in which the second substance 2 is contained.

[0035] The inner cup portion side wall portion 210 is configured to be inserted inside the container opening 20, and is inserted into the container opening 20 either in close contact with the inner circumferential surface of the container opening 20 or in close contact with the inner circumferential surface of the inner side wall portion 140 of the outer lid 100, which will be described later.

[0036] In this case, in order to improve the airtightness with the inner side wall portion 140, the inner cup portion side wall portion 210 may have an annular projection 212 formed on its outer surface so as to be in close contact with the inner circumferential surface of the inner side wall portion 140.

[0037] On the other hand, the vertical length of the inner cup side wall portion 210 can be appropriately selected considering the amount of the second substance to be contained in the storage space SS.

[0038] Furthermore, the inner cup portion side wall portion 210 may have one or more annular protrusions 219, 211 formed on its inner surface, which are in close contact with the outer surface of the annular punch portion 320 described later, in order to ensure airtightness of the storage space SS.

[0039] The annular projections 219 and 211 are protrusions formed on the inner circumferential surface of the inner cup portion side wall portion 210 so as to be in close contact with the outer circumferential surface of the annular punch portion 320, which will be described later, in order to ensure the airtightness of the storage space SS, and can have an annular shape.

[0040] On the other hand, the inner cup portion side wall portion 210 can be formed in a shape in which the outer diameter decreases toward the downward side so that it can be stably inserted into the inner circumferential surface of the container inlet 20 or the inner circumferential surface of the inner side wall portion 140 of the outer lid 100, which will be described later.

[0041] Furthermore, the inner cup portion side wall portion 210 may have a tapered shape at its lower end, where the thickness in the radial direction decreases.

[0042] The cup coupling portion 220 is a part that is supported by at least one of the outer lid 100 and the container inlet 20 at the upper end of the inner cup portion side wall portion 210, and various configurations are possible depending on the support structure.

[0043] As an example, the cup coupling portion 220 can be fixedly coupled to the inner circumferential surface of the outer lid 100 by irregularities, as shown in Figures 1 to 6.

[0044] More specifically, as shown in Figures 1 to 6, a support projection 131 may be formed on the inner circumferential surface of the outer cover 100, particularly the rim portion 130 or the inner side wall portion 140, and the cup coupling portion 220 may have an insertion groove 221 into which the support projection 131 is inserted.

[0045] The support projection 131 may be formed in an annular shape or as a plurality of protrusions along the circumferential direction.

[0046] Furthermore, the insertion groove 221 is a groove into which the support projection 131 is inserted, and can be formed in an annular shape or as a plurality of projections along the circumferential direction.

[0047] On the other hand, as an alternative example, the cup coupling portion 220 can support the upper end of the container inlet 20, as shown in Figures 8 to 14.

[0048] Specifically, the cup coupling portion 220 can extend radially outward from the upper end of the inner cup portion side wall portion 210 and be supported at the upper end of the container inlet 20.

[0049] Furthermore, when the outer lid 100 is separated from the container inlet 20 by rotation, it is preferable that the cup coupling portion 220 is maintained in a state of being coupled to the outer lid 100 by various methods, such as being press-fitted to the outer lid 100 or being fixed by an uneven structure, so that the inner cup portion 200 can be separated from the container inlet 20 while still coupled to the outer lid 100.

[0050] The bottom portion 230 is integrally or detachably connected to the lower end of the inner cup portion side wall portion 210, forming a storage space SS in which the second substance 2 is contained, and various configurations are possible depending on the connection structure with the inner cup portion side wall portion 210.

[0051] For example, the bottom portion 230 may be formed integrally with the inner cup portion side wall portion 210, and in this case, a separation groove 231 may be formed in the portion connected to the inner cup portion side wall portion 210 so as to break when pressed by the pressing portion 300, particularly the punch portions 320, 330.

[0052] At this time, the punch portions 320 and 330, particularly the annular punch portion 320, are formed with sharp tips, and when they descend, they pressurize the separation groove 231, causing the separation groove 231 to break, and the bottom portion 230 bends to one side, as shown in Figure 3.

[0053] When the bottom portion 230 bends to one side, the storage space SS is opened to the bottom, and the second substance 2 contained in the storage space SS falls downward and mixes with the first substance 1.

[0054] Here, it is preferable that the bottom portion 230 is partially separated from the inner cup portion side wall portion 210, for example, by about 3 / 4, rather than being completely separated from it, and that it remains connected to the inner cup portion side wall portion 210.

[0055] In other words, the separation groove 231 is formed in the portion where the bottom portion 230 and the inner cup portion side wall portion 210 are connected so that it can break when pressed by the pressing portion 300, and it is preferable that it is formed only partially, such as about 3 / 4, rather than being formed 360° along the circumferential direction.

[0056] After the above operation, the user can shake the container 10 with the container closure assembled to mix the first substance 1 and the second substance 2, and then use it for drinking or other purposes as needed.

[0057] In particular, when the user shakes the container 10 and then rotates the outer lid 100 to separate it from the container opening 20, the inner cup portion 200 is separated from the container opening 20 while still attached to the outer lid 100 due to the structure described above.

[0058] On the other hand, as an alternative example, the bottom portion 230 may include a sealing member 241 that is bonded to the inner cup portion side wall portion 210 and is broken when pressed by the pressing portion 300, as shown in Figures 5 and 6.

[0059] The sealing member 241 is a member that seals the storage space SS by being adhered to the inner cup side wall 210, and any configuration is possible as long as it is a member that can be adhered to the inner cup side wall 210.

[0060] As an example, the sealing member 241 comprises an aluminum layer, an adhesive layer, etc., and can be bonded to the inner cup side wall portion 210 by induction, conduction, or other methods.

[0061] Furthermore, the sealing member 241 can have various adhesive structures, such as including an adhesive portion 242 that is adhered to the outer circumferential surface of the inner cup portion side wall portion 210.

[0062] On the other hand, as an alternative example, the bottom portion 230 may include a cover member 251 that is coupled to the inner cup portion side wall portion 210 and separated from the inner cup portion side wall portion 210 by the pressing portion 300, i.e., the punch portions 320, 330, in particular the annular punch portion 320.

[0063] The cover member 251 is connected to the inner cup side wall portion 210 so as to be separated from the inner cup side wall portion 210 by the pressing portion 300, and may have a connection structure as shown in Figure 7.

[0064] With the structure described above, when the pressing portion 300, that is, the punch portions 320 and 330, particularly the annular punch portion 320, descends, the cover member 251 is separated from the inner cup portion side wall portion 210.

[0065] On the other hand, in relation to the installation of the cover member 251, as shown in Figure 7, the inner cup portion 200 may be excluded and the cover member 251 may be connected to the lower end of the inner side wall portion 140.

[0066] Furthermore, the coupling structure between the cover member 251 and the inner side wall portion 140 can be various, such as an insertion structure. A projection 149 may be formed on the outer circumferential surface of the lower end of the inner side wall portion 140, and a groove 252 may be formed on the inner circumferential surface of the cover member 251 into which the projection 149 is inserted.

[0067] With the structure described above, when the pressing portion 300, that is, the punch portions 320 and 330, and especially the annular punch portion 320, descends, the cover member 251 is separated from the inner side wall portion 140.

[0068] On the other hand, as shown in Figure 14, the aforementioned inner cup portion 200 can be further connected to an auxiliary cup portion 400 which contains a third substance 3 that is mixed with the first substance 1 and the second substance 2.

[0069] The auxiliary cup portion 400 is connected to the inner cup portion 200 and contains a third substance 3 which is mixed with the first substance 1 and the second substance 2, and various configurations are possible.

[0070] In particular, the auxiliary cup portion 400 may have the same or similar configuration as the inner cup portion 200 described above.

[0071] For example, as shown in Figure 14, the auxiliary cup portion 400 includes an auxiliary cup portion side wall portion 410 inserted inside the container inlet 20 into which the inner cup portion 200 is inserted; an auxiliary cup portion wing portion 420 supported at the upper end of the auxiliary cup portion side wall portion 410 by at least one of the outer lid 100 and the container inlet 20; and an auxiliary cup portion bottom portion 430 integrally or detachably coupled to the lower end of the auxiliary cup portion side wall portion 410, forming an auxiliary space SS2 in which the third substance 3 is contained.

[0072] The auxiliary cup portion side wall portion 410 is inserted inside the container inlet 20, and the inner cup portion 200 is inserted inside it. Various configurations are possible, such as the inner cup portion 200 being identical or similar to the inner cup portion side wall portion 210 of the inner cup portion 200 described above.

[0073] In particular, the auxiliary cup portion side wall portion 410 can be equipped with various contact structures with the inner cup portion side wall portion 210 of the inner cup portion 200, such as protruding structures on its inner circumferential surface, for sealing purposes.

[0074] Furthermore, the auxiliary cup portion side wall portion 410 may be provided with various contact structures for sealing between the inner surface of the container inlet 20 and the inner surface of the inner side wall portion 140, if the inner surface of the container inlet 20 is provided, such as protrusions on its outer surface.

[0075] The auxiliary cup wing portion 420 is supported at the upper end of the auxiliary cup side wall portion 410 by at least one of the outer lid 100 and the container inlet 20, and various configurations are possible depending on the object to be connected and the connection structure.

[0076] As an example, the auxiliary cup wing portion 420 may be supported and provided at the upper end of the container inlet 20, as shown in Figure 4.

[0077] As another example, although not shown, the auxiliary cup wing portion 420 may be fixed to the inner circumferential surface of the outer cover 100, particularly the rim portion 130 or the inner side wall portion 140, by an uneven structure.

[0078] The auxiliary cup bottom portion 430 is integrally or detachably connected to the lower end of the auxiliary cup side wall portion 410, forming an auxiliary space SS2 in which the third substance 3 is contained. It may have the same or similar configuration as the bottom portion 230 described above—an integrated structure, a sealing member, a cover member, etc.—and a detailed explanation is omitted.

[0079] On the other hand, the bottom portion 430 of the auxiliary cup is pressed by the pressing portion 300 together with the bottom portion 230, and the auxiliary space SS2 is opened, causing the second substance 2 and the third substance 3 to fall in and mix with the first substance 1.

[0080] The outer lid 100 is configured to be attached to the container inlet 20 so as to cover the inner cup portion 200 which is attached to the container inlet 20, and various configurations are possible depending on the connection structure between the container inlet 20 and the inner cup portion 200.

[0081] As an example, the outer lid 100 is a structure integrally formed by plastic injection molding and may include an outer lid side wall portion 110 and a pressing portion 300 that is provided on the inside of the outer lid side wall portion 110 so as to be movable up and down, and which presses the bottom portion 230 by descending to open the storage space SS to the lower side.

[0082] The side wall portion 110 is part of the side wall of the outer lid 100 and can be configured in various ways, such as being screw-connected to the container inlet 20.

[0083] The side wall portion 110 has a female threaded portion 111 formed on its inner circumferential surface, which is screw-connected to a male threaded portion 21 formed on the outer circumferential surface of the container inlet 20.

[0084] The female threaded portion 111 is a portion formed on the inner surface of the side wall portion 110 so as to be screw-connected to the male threaded portion 21 formed on the outer surface of the container inlet 20, and may have various structures depending on the screw connection structure.

[0085] Furthermore, the lower end of the side wall portion 110 is connected to a skirt portion 120 by multiple bridges, which is locked to a locking projection 22 formed on the outer circumferential surface of the container inlet 20.

[0086] The skirt portion 120 is connected to the lower end of the side wall portion 110 by a plurality of bridges and is locked to a locking projection 22 formed on the outer surface of the container inlet 20. When the user rotates the outer lid 100 to separate it from the container inlet 20, the bridges break, allowing confirmation of whether the container has been opened or not.

[0087] At this time, the skirt portion 120 has a projection 121 that protrudes inward from its inner circumferential surface so as to be locked into the locking projection 22.

[0088] On the other hand, the upper end of the side wall portion 110 may be provided with a partition wall portion 113 that is the same height as or higher than the height when the pressing plate 310 is in its uppermost position, in order to prevent the pressing plate 310, which will be described later, from being pressed arbitrarily.

[0089] The partition wall portion 113 is formed to be the same height as or higher than the height when the pressing plate 310 is in its uppermost position, in order to prevent the pressing plate 310, which will be described later, from being arbitrarily pressed at the upper end of the side wall portion 110, and various configurations are possible.

[0090] The pressing portion 300 is provided so as to be movable up and down inside the outer lid side wall portion 110, and is configured to press the bottom portion 230 by descending, thereby opening the storage space SS to the lower side, and various configurations are possible depending on the pressing structure.

[0091] As an example, the pressing portion 300 includes a pressing plate 310 located in the inner center of the outer lid side wall portion 110, with punch portions 320 and 330 extending downward to press against the bottom portion 230 on its bottom surface, and an elastic membrane 340 connecting the inner side of the outer lid side wall portion 110 and the pressing plate 310 so that the pressing plate 310 can move up and down.

[0092] The pressing plate 310 is located in the inner center of the outer lid side wall portion 110, and has punch portions 320 and 330 that extend downward from its bottom surface to press against the bottom portion 230, and various configurations are possible.

[0093] As an example, the pressing plate 310 is preferably formed to be relatively thicker than the elastic membrane 340, which will be described later, taking into consideration the function that allows the user to press down to lower the punching parts 320 and 330.

[0094] The punch portion 340 is configured to descend as a result of the pressing action of the pressing plate 310 and extend downward from the bottom surface of the pressing plate 310 so as to press against the bottom portion 230, and various configurations are possible.

[0095] As an example, the punch portions 320 and 330 include an annular punch portion 320 that is open at the bottom and inserted in close contact with the inner circumferential surface of the inner cup portion side wall portion 210.

[0096] The annular punch portion 320 extends downward from the bottom surface of the pressing plate 310, with its lower side open, and is inserted in a state of close contact with the inner circumferential surface of the inner cup portion side wall portion 210, allowing for various configurations.

[0097] In particular, the annular punch portion 320 is inserted in a state of close contact with the inner circumferential surface of the inner cup portion side wall portion 210, thereby forming a sealed storage space SS.

[0098] Therefore, the annular punch portion 320 may have various structures on its outer circumferential surface that are in close contact with the inner circumferential surface of the inner cup portion side wall portion 210.

[0099] As an example, the annular punch portion 320 has one or more protruding structures 321 on its outer circumferential surface that are in close contact with the inner circumferential surface of the inner cup portion side wall portion 210.

[0100] The protruding structure 321 can have various close contact structures, such as being formed with a gently curved surface that leads to surface contact rather than line contact with the inner circumferential surface of the inner cup side wall portion 210.

[0101] The annular punch portion 320 needs to be able to smoothly perform actions such as cutting the separation groove 231 of the bottom portion 230 or breaking the sealing member 241 as it descends.

[0102] As a result, the annular punch portion 320 may have a blade portion 321 formed at its lower end to break the bottom portion 230.

[0103] Furthermore, it is preferable that the annular punch portion 320 has a diagonal shape when viewed from the side, such that the pressing force is concentrated in a specific area when it presses against the bottom portion 230.

[0104] Due to the structure described above, when the annular punch portion 320 descends, as seen in the drawing, the left side of the bottom portion 230 will break or separate, and the bottom portion 230, which has broken on one side, will bend to the opposite side as the annular punch portion 320 descends further.

[0105] On the other hand, the annular punch portion 320 has a cylindrical structure when viewed from the bottom, and therefore may be structurally fragile.

[0106] Therefore, as shown in Figures 4 and 11, the punch portions 320 and 330 may further have a central pressing portion 330 formed inside the annular punch portion 320 that presses against the bottom portion 230 so that the bottom portion 230 curves upward.

[0107] The central pressing portion 330 is formed inside the annular punch portion 320 and is configured to press the bottom portion 230 so that it curves upward, and various configurations are possible.

[0108] As an example, the central pressing portion 330 may be formed inside the annular punch portion 320 in various shapes such as "-" or "+" shapes.

[0109] In particular, the central pressing portion 330 is formed in a state where it is bonded to the inner circumferential surface of the annular punch portion 320, thereby reinforcing the structural rigidity of the annular punch portion 320.

[0110] The elastic membrane 340 is configured to integrally connect the inside of the outer cover side wall 110 and the pressing plate 310 so that the pressing plate 310 can move up and down, and various configurations are possible.

[0111] In particular, the elastic membrane 340 may have any configuration as long as it is capable of maintaining the raised and lowered states of the pressing plate 310 by elastic force when the pressing plate 310 moves up and down.

[0112] On the other hand, the elastic membrane 340 may be connected to the inner circumferential surface of the outer cover side wall portion 110 or to the rim portion 130, and its connection position and height may be determined according to the vertical movement distance of the pressing plate 310.

[0113] In particular, the elastic membrane 340 can achieve its function by being formed thinner than the thickness of the pressing plate 310.

[0114] On the other hand, the outer lid 100 may have a rim portion 130 that extends inward from the inner circumferential surface of the outer lid side wall portion 110, which comes into close contact with the upper end of the container inlet 20, either directly or indirectly, when the outer lid 100 is connected to the container inlet 20.

[0115] The rim portion 130 is formed to extend inward from the inner circumferential surface of the outer lid side wall portion 110 so as to come into close contact with the upper end of the container inlet 20, either directly or indirectly, when connected to the container inlet 20, and various configurations are possible.

[0116] As an example, as shown in Figures 1 to 7, when the outer lid 100 is connected to the container inlet 20, the rim portion 130 can directly contact the upper end of the container inlet 20.

[0117] In this case, the outer lid 100 may have an inner side wall portion 140 extending downward from the lower end of the rim portion 130, wherein at least a portion of the outer circumferential surface is in close contact with the inner circumferential surface of the container inlet 20, and at least a portion of the inner circumferential surface is in close contact with the outer circumferential surface of the inner cup portion side wall portion 210.

[0118] The inner side wall portion 140 is formed extending downward from the lower end of the rim portion 130 such that at least a part of its outer peripheral surface is in close contact with the inner peripheral surface of the container inlet 20, and at least a part of its inner peripheral surface is in close contact with the outer peripheral surface of the inner cup portion side wall portion 210, and various configurations are possible.

[0119] On the other hand, as an alternative example, the rim portion 130 may be provided so as shown in Figures 8 to 14 that when the outer lid 100 is connected to the container inlet 20, the rim portion 130 pressurizes the cup connecting portion 220 of the inner cup portion 200, which is supported at the upper end of the container inlet 20, from above.

[0120] On the other hand, the pressing portion 300 is configured to press the bottom portion 230 by descending, thereby opening the storage space SS downwards. In addition to the configuration of the pressing plate 310 and the elastic membrane 340, any structure that can press the bottom portion 230 while the aforementioned punch portions 320 and 330 are formed on the bottom surface is acceptable.

[0121] As an example, the pressing portion 300 may be composed of an elliptical thin film, with punch portions 320 and 330 extending downward from the bottom surface of the thin film.

[0122] A container to which a container closure having the above configuration is attached can be used as follows.

[0123] First, the user presses the pressing part 300 to lower it, pressing the bottom part 230 and opening the storage space SS downwards.

[0124] When the storage space SS is opened, the second substance 2 contained in the storage space SS falls out and mixes with the first substance 1 contained in the container 10.

[0125] At this time, the user can shake the container 10 after the above operation has been performed and the container closure has been assembled to mix the first substance 1 and the second substance 2, and then use it according to its intended purpose, such as drinking.

[0126] In particular, when the user shakes the container 10 and then rotates the outer lid 100 to separate it from the container opening 20, the inner cup portion 200 is separated from the container opening 20 while still attached to the outer lid 100 due to the structure described above.

[0127] While preferred embodiments of the present invention have been described illustratively above, the scope of the present invention is not limited to these specific embodiments and can be modified as appropriate within the scope described in the claims.

Claims

1. A container containing a first substance has an inner cup portion which is connected to the container opening of the container containing the first substance and contains a second substance which is to be mixed with the first substance, It includes an outer lid that is attached to the container opening so as to cover the inner cup portion attached to the container opening, The inner cup portion is The inner cup portion side wall portion is inserted inside the container opening, A cup coupling portion supported at the upper end of the inner cup portion side wall by at least one of the outer lid and the container opening, It includes a bottom portion which is integrally or detachably attached to the lower end of the side wall portion of the inner cup portion and forms a storage space in which a second substance is contained, The aforementioned outer cover is The outer lid side wall portion is screw-connected to the container inlet, A pressing part is provided on the inside of the outer lid side wall portion so as to be movable vertically, and when it descends, it presses against the bottom portion to open the storage space downwards, A container closure characterized by including the following:

2. The pressing portion is, A pressing plate is located in the center of the inner side wall of the outer lid, with a punch portion extending downward from its bottom surface to press against the bottom, The container closure according to claim 1, further comprising an elastic membrane connecting the inner surface of the outer lid side wall to the pressing plate, such that the pressing plate can move up and down.

3. The punching section is The container closure according to claim 2, characterized in that it includes an annular punch portion which is open at the bottom and is inserted in close contact with the inner circumferential surface of the inner cup portion side wall.

4. The container closure according to claim 3, characterized in that the annular punch portion has a blade portion formed at its lower end for breaking the bottom portion.

5. The punching section is The container closure according to claim 4, further characterized in that a central pressing portion is formed inside the annular punch portion, which presses the bottom portion so that the bottom portion curves upward.

6. The aforementioned outer cover is The container closure according to any one of claims 1 to 5, characterized in that, when coupled with the container inlet, the rim portion that directly or indirectly comes into close contact with the upper end of the container inlet is formed extending inward from the inner circumferential surface of the outer lid side wall portion.

7. The container closure according to claim 6, characterized in that when the outer lid is coupled to the container inlet, the rim portion is in direct contact with the upper end of the container inlet.

8. The container closure according to claim 7, characterized in that the outer lid has an inner side wall portion extending downward from the lower end of the rim portion, wherein at least a portion of its outer circumferential surface is in close contact with the inner circumferential surface of the container inlet, and at least a portion of its inner circumferential surface is in close contact with the outer circumferential surface of the inner cup portion side wall portion.

9. The container closure according to any one of claims 1 to 8, characterized in that the cup coupling portion is fixedly coupled to the inner circumferential surface of the outer lid by irregularities.

10. The bottom portion is formed integrally with the inner cup portion side wall portion. The container closure according to any one of claims 1 to 9, characterized in that a separation groove is formed in the portion connected to the side wall portion of the inner cup portion so as to break when pressed by the pressing portion.

11. The container closure according to any one of claims 1 to 9, characterized in that the bottom portion includes a sealing member that is adhered to the side wall of the inner cup portion and is broken when pressed by the pressing portion.

12. The container closure according to any one of claims 1 to 9, characterized in that the bottom portion includes a cover member which is coupled to the inner cup portion side wall and separated from the inner cup portion side wall by the pressing portion.

13. When the outer lid is connected to the container opening, The container closure according to any one of claims 1 to 12, characterized in that the rim portion pressurizes the cup coupling portion of the inner cup portion, which is supported at the upper end of the container inlet, from above.

14. An auxiliary cup portion, which contains a third substance to be mixed with the first and second substances, is connected to the inner cup portion. The aforementioned auxiliary cup portion is An auxiliary cup portion side wall portion is inserted inside the container opening, and the inner cup portion is inserted inside it, The auxiliary cup portion wing portion is supported at the upper end of the side wall portion of the auxiliary cup portion by at least one of the outer lid and the container opening, The lower end of the side wall portion of the auxiliary cup portion is integrally or detachably connected to the bottom of the auxiliary cup portion, which forms an auxiliary space in which a third substance is contained, Includes, The container closure according to any one of claims 1 to 13, characterized in that the bottom of the auxiliary cup portion is pressed together with the bottom portion by the pressing portion, thereby opening the auxiliary space.

15. A container containing the first substance, A container to which a container closure according to any one of claims 1 to 14 is attached.

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