Container closure and container coupled with same

Abstract

The present invention relates to a container closure and a container coupled with same. The present invention provides a container closure comprising: an inner cup portion (200) which is coupled to a container inlet (20) of a container (10) in which a first material (1) is contained and in which a second material (2) mixed with the first material (1) is contained; and an outer lid (100) which is 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) comprises: an inner cup side wall portion (210) which is inserted into the container inlet (20); a cup coupling portion (220) which is supported by at least one of the outer lid (100) and the container inlet (20) at the upper end of the inner cup side wall portion (210); and a bottom portion (230) which is integrally or detachably coupled to the lower end of the inner cup side wall portion (210) so as to form a storage space (SS) in which the second material (2) is contained. The outer lid (100) comprises: an outer lid side wall portion (110) which is screw-coupled to the container inlet (20); and a pressing portion (300) which is installed in the outer lid side wall portion (110) to be movable up / down and presses the bottom portion (230) when moving down so as to open the storage space (SS) downward.

Description

Container closure assembly and container to which it is attached

[0001] The present invention relates to a container closure assembly and a container to which the container closure assembly is combined.

[0002] The container is generally formed with a container opening that is opened and closed by a container stopper, and contains a liquid, powder, or granular substance inside.

[0003] Meanwhile, depending on the type of beverage, health supplement, or special medicine, there are cases where the first substance in liquid form and the second substance in powder or granular form are mixed and consumed or used.

[0004] In particular, there are cases where the first and second substances are required to be stored separately and then mixed when drinking or using, and a container closure structure having the same structure as that of Patent Document 1 has been proposed to reflect such requirements.

[0005] The container closure structure according to patent document 1 is characterized by being composed of a storage cup inserted into the container inlet, a perforation cutter for breaking the lower part of the storage cup, and an outer cap having a pressing portion.

[0006] However, the container closure structure according to Patent Document 1, although considerably improved, has the problem that the manufacturing process is complicated and the manufacturing cost increases because it is composed of three parts, and the manufacturing cost of the mold for forming the three parts and the process for assembling the three parts are performed three times.

[0007] (Patent Document 1) KR 10-2018-0042093 A

[0008] The purpose of the present invention is to provide a container closure assembly and a container combined with the same, which can reduce manufacturing costs and simplify the manufacturing process by implementing an inner cup part and an outer closure part in configuring a container closure assembly that stores a first material and a second material separately and then mixes them when used, in order to solve the above-mentioned problems.

[0009] The present invention has been created to achieve the above-described purpose of the present invention, and the present invention comprises an inner cup part (200) which is connected to a container inlet (20) of a container (10) containing a first material (1) and contains a second material (2) mixed with the first material (1); It includes an outer stopper (100) coupled to the container inlet (20) to cover the inner cup part (200) coupled to the container inlet (20), and the inner cup part (200) includes an inner cup side wall part (210) inserted into the inside of the container inlet (20), a cup coupling part (220) supported by at least one of the outer stopper (100) and the container inlet (20) at the upper end of the inner cup side wall part (210), and a bottom part (230) integrally or detachably coupled to the lower end of the inner cup side wall part (210) to form a storage space (SS) in which a second material (2) is contained, and the outer stopper (100) includes an outer stopper side wall part (110) screw-coupled to the container inlet (20), and is installed so as to be able to move up and down on the inside of the outer stopper side wall part (110). A container closure assembly is proposed, characterized in that it includes a pressing part (300) that pressurizes the bottom part (230) by descending to open the storage space (SS) downward.

[0010] The above pressing part (300) may include a pressing plate (310) that is positioned at the center of the inner side of the outer plug side wall part (110) and has a punching part (320, 330) extending downwardly to press the bottom part (230) on the lower surface, and an elastic membrane (340) that connects the inner side of the outer plug side wall part (110) and the pressing plate (310) so that the pressing plate (310) can move up and down.

[0011] The above punching part (320, 330) may include an annular punching part (320) that is opened at the lower side and inserted in close contact with the inner surface of the inner cup side wall part (210).

[0012] The above-mentioned annular punching portion (320) may have a blade portion (321) formed at the bottom to break the bottom portion (230).

[0013] The punching section (320, 330) may additionally be formed with a central pressurizing section (330) that presses the bottom section (230) so that the bottom section (230) is bent on the inside of the annular punching section (320).

[0014] The above outer plug (100) may be formed by extending inward from the inner circumferential surface of the outer plug side wall (110) such that the rim portion (130) which is in direct or indirect contact with the upper end of the container inlet (20) when combined with the container inlet (20) is formed.

[0015] When the outer cap (100) is combined with the container inlet (20), the rim (130) can directly contact the upper end of the container inlet (20).

[0016] The outer cap (100) may have an inner side wall portion (140) extending downward from the lower end of the rim portion (130) such that at least a portion of the outer surface is in close contact with the inner surface of the container inlet (20) and at least a portion of the inner surface is in close contact with the outer surface of the inner cup side wall portion (210).

[0017] The above cup joint (220) can be fixedly joined by the protrusions on the inner surface of the outer plug (100).

[0018] The above bottom part (230) is formed integrally with the inner cup side wall part (210), and a separation groove (231) can be formed at a portion connected to the inner cup side wall part (210) so that it can be broken when pressed by the pressing part (300).

[0019] The above bottom portion (230) may include a sealing member (241) that is adhered to the inner cup side wall portion (210) and is broken when pressed by the pressing portion (300).

[0020] The above bottom portion (230) may include a cover member (251) that is coupled to the inner cup side wall portion (210) and separated from the inner cup side wall portion (210) by the pressing portion (300).

[0021] When the outer cap (100) is combined with the container inlet (20), the rim (130) can press the cup coupling portion (220) of the inner cup portion (200) supported on the upper end of the container inlet (20) from above.

[0022] The auxiliary cup part (400) containing the third material (3) mixed with the first material (1) and the second material (2) is coupled to the inner cup part (200), and the auxiliary cup part (400) includes an auxiliary cup part side wall part (410) inserted into the inside of the container inlet (20) and having the inner cup part (200) inserted therein, an auxiliary cup part wing part (420) supported by at least one of the outer stopper (100) and the container inlet (20) at the upper end of the auxiliary cup part side wall part (410), and an auxiliary cup part bottom part (430) integrally or detachably coupled to the lower end of the auxiliary cup part side wall part (410) to form an auxiliary space (SS2) containing the third material (3), and the auxiliary cup part bottom part (430) is coupled together with the bottom part (230) to the pressing part (300). The auxiliary space (SS2) can be opened by pressurization.

[0023] The present invention provides a container containing a first substance, and a container having a container closure assembly having the characteristics described above combined therewith.

[0024] The container closure assembly according to the present invention and the container to which it is combined have the advantage of reducing manufacturing costs and simplifying the manufacturing process by implementing an inner cup portion and an outer closure portion in configuring a container closure assembly that stores a first material and a second material separately and then mixes them together when used.

[0025] In particular, the container closure assembly according to the present invention and the container combined therewith have the advantage of reducing the assembly process to one by integrating the perforation cutter and the outer cap in the container closure assembly according to Patent Document 1, and also reducing the mold manufacturing cost.

[0026] FIG. 1 is a cross-sectional view showing a container closure assembly and a container coupled thereto according to a first embodiment of the present invention.

[0027] Figures 2a and 2b are cross-sectional views showing the outer stopper and storage cup, respectively, of the container stopper assembly illustrated in Figure 1.

[0028] Figure 3 is a cross-sectional view showing the operation of the container closure assembly illustrated in Figure 1.

[0029] FIG. 4 is a bottom view showing the bottom surface of the outer stopper of the container stopper assembly illustrated in FIGS. 1 to 3.

[0030] FIG. 5 is a cross-sectional view showing a container closure assembly and a container coupled thereto according to a second embodiment of the present invention, as a modified example of the present invention.

[0031] Figure 6 is a cross-sectional view showing the operation of the container closure assembly illustrated in Figure 5.

[0032] FIG. 7 is a cross-sectional view showing a container closure assembly and a container coupled thereto according to a third embodiment of the present invention, as a modified example of the present invention.

[0033] FIG. 8 is a cross-sectional view showing a container closure assembly and a container coupled thereto according to a fourth embodiment of the present invention, as a modified example of the present invention.

[0034] Figures 9a and 9b are cross-sectional views showing the outer cap and storage cup, respectively, of the container cap assembly illustrated in Figure 8.

[0035] Fig. 10 is a cross-sectional view showing the operation of the container closure assembly illustrated in Fig. 8.

[0036] Fig. 11 is a bottom view showing the bottom surface of the outer stopper of the container stopper assembly illustrated in Figs. 7 to 10.

[0037] FIG. 12 is a cross-sectional view showing a container closure assembly and a container coupled thereto according to a fifth embodiment of the present invention, as a modified example of the present invention.

[0038] Fig. 13 is a cross-sectional view showing the operation of the container closure assembly illustrated in Fig. 12.

[0039] FIG. 14 is a cross-sectional view showing a container closure assembly and a container coupled thereto according to a sixth embodiment of the present invention, as a modified example of the present invention.

[0040] [Correction pursuant to Rule 91, April 18, 2024][Deleted]

[0041] Hereinafter, a container closure assembly according to the present invention and a container to which it is combined will be described with reference to examples and the attached drawings.

[0042] First, the present invention is characterized by a container closure assembly, and there is substantially no change in the structure of the container, particularly the container inlet, according to the container closure assembly, but some parts may be changed in response to the structure of the container closure assembly described later.

[0043] The above container (10) is a container containing the first material (1), and any configuration that has a container inlet (20) is possible.

[0044] Here, the first material (1) is a material that is mixed with the second material (2) described below, and further, a third material (3), and any material that can be contained in a container regardless of the form of the material, such as liquid or powder, and can be mixed with the second material, and further, the third material, is possible.

[0045] And the second material (2), and further the third material (3), are materials that fall from the container cap assembly and mix with the first material (1) contained in the container (10), and any material that can be mixed with the first material is possible.

[0046] However, considering the use example of the container closure assembly according to the present invention, it is preferable that the first material (1) is in a liquid state, and the second material (2) described below, and further, the third material (3) are preferably in a powder form.

[0047] A container closure assembly according to the present invention includes an inner cup portion (200) that is coupled to a container inlet (20) of a container (10) containing a first substance (1) and that contains a second substance (2) mixed with the first substance (1); and an outer closure portion (100) that is coupled to the container inlet (20) so as to cover the inner cup portion (200) coupled to the container inlet (20).

[0048] The above inner cup part (200) is connected to the container inlet (20) of the container (10) containing the first material (1), and is configured to contain the second material (72) mixed with the first material (1), and various configurations are possible.

[0049] For example, the inner cup part (200) may be made of a plastic material considering that it is manufactured by injection molding, and may include an inner cup side wall part (210) inserted into the inside of the container inlet (20), a cup coupling part (220) supported by at least one of the outer stopper (100) and the container inlet (20) at the upper end of the inner cup side wall part (210), and a bottom part (230) integrally or detachably coupled to the lower end of the inner cup side wall part (210) to form a storage space (SS) in which a second material (2) is contained.

[0050] The inner cup side wall portion (210) is configured to be inserted into the inner side of the container inlet (20), and can be inserted into the container inlet (20) by being in close contact with the inner surface of the container inlet (20) or by being in close contact with the inner surface of the inner side wall portion (140) of the external stopper (100) described later.

[0051] At this time, in order to increase the sealing property with the inner side wall portion (140), the inner cup side wall portion (210) may have a circular protrusion (212) formed on the outer surface thereof so as to be in close contact with the inner surface of the inner side wall portion (140).

[0052] Meanwhile, the upper and lower lengths of the inner cup side wall (210) can be appropriately selected in consideration of the amount of the second material contained in the storage space (SS).

[0053] And, the inner cup side wall (210) may have one or more annular protrusions (219, 211) formed on the inner surface thereof to be in close contact with the outer surface of the annular punching portion (320) described later for the purpose of sealing the storage space (SS).

[0054] The above-mentioned annular protrusion (219, 211) is a protrusion formed on the inner surface of the inner cup side wall (210) so as to be in close contact with the outer surface of the annular punching portion (320) described later for the purpose of sealing the storage space (SS), and may have an annular shape.

[0055] Meanwhile, the inner cup side wall portion (210) may be formed in a shape in which the outer diameter decreases as it goes downward so that it can be stably inserted into the inner surface of the container inlet (20) or the inner surface of the inner side wall portion (140) of the external stopper (100) described later.

[0056] And the inner cup side wall portion (210) may have a tapered shape in which the cross-section of the lower portion has a decreasing radial thickness.

[0057] The above cup joint (220) is a part that is supported by at least one of the outer stopper (100) and the container inlet (20) at the upper end of the inner cup side wall (210), and various configurations are possible depending on the support structure.

[0058] The cup coupling portion (220) may be fixedly coupled to the inner circumferential surface of the outer plug (100) by means of protrusions, as shown in FIGS. 1 to 6, for example.

[0059] More specifically, as shown in FIGS. 1 to 6, a support projection (131) is formed on the inner surface of the outer plug (100), particularly the rim portion (130) or the inner side wall portion (140), and the cup-joining portion (220) may have an insertion groove (221) formed into which the support projection (131) is inserted.

[0060] The above-mentioned support protrusion (131) may be formed in a circular shape or may be formed with multiple protrusions along the circumferential direction.

[0061] And the above insertion groove (221) is a groove into which the support protrusion (131) is inserted, and may be formed in a circular shape or formed with a plurality of protrusions along the circumferential direction.

[0062] Meanwhile, the cup joint (220) may, as another example, support the upper end of the container inlet (20) as shown in FIGS. 8 to 14.

[0063] Specifically, the cup joint (220) can be extended radially outward from the upper end of the inner cup side wall (210) and supported on the upper end of the container inlet (20).

[0064] And, when the outer plug (100) is separated from the container inlet (20) by rotation, the inner cup part (200) is preferably separated from the container inlet (20) together with the outer plug (100) in a state of being coupled to the outer plug (100), so that the cup coupling part (220) is preferably maintained in a state of being coupled to the outer plug (100) by various methods, such as being in a state of being pressed against the outer plug (100) or being fixed by a rough structure.

[0065] The above bottom part (230) is configured to be integrally or detachably connected to the lower end of the inner cup side wall part (210) to form a storage space (SS) in which the second material (2) is contained, and various configurations are possible depending on the connection structure with the inner cup side wall part (210).

[0066] For example, the bottom part (230) may be formed integrally with the inner cup side wall part (210), and at this time, a separation groove (231) may be formed at a portion connected to the inner cup side wall part (210) so that it can be broken when pressed by the pressing part (300), particularly the punching part (320, 330).

[0067] At this time, the punching part (320, 330), especially the annular punching part (320), is formed with a sharp end so that when lowered, it presses the separation groove (231) so that the separation groove (231) is broken, and the bottom part (230) can be bent to one side, as shown in FIG. 3.

[0068] When the above bottom part (230) is tilted to one side, the storage space (SS) is opened downward, and the second material (2) containing the storage space (SS) falls downward and is mixed with the first material (1).

[0069] Here, it is preferable that the bottom part (230) is not completely separated from the inner cup side wall part (210), but is partially separated, for example, by about 3 / 4, and is maintained in a state of being connected to the inner cup side wall part (210).

[0070] That is, the separation groove (231) is formed at a portion where the bottom portion (230) and the inner cup side wall portion (210) are connected so that it can be broken when pressed by the pressing portion (300), and it is preferable that it is formed only partially, such as about 3 / 4, instead of being formed 360° along the circumferential direction.

[0071] After the above operation, the user can shake the container (10) with the container cap assembly assembled to mix the first material (1) and the second material (2), and then use it for drinking or other purposes.

[0072] In particular, when the user shakes the container (10) and then rotates the outer stopper (100) to separate it from the container inlet (20), the inner cup part (200) is separated from the container inlet (20) while being connected to the outer stopper (100) by the structure described above.

[0073] Meanwhile, as another example, the bottom portion (230) may include a sealing member (241) that is adhered to the inner cup side wall portion (210) and is broken when pressed by the pressing portion (300), as shown in FIGS. 5 and 6.

[0074] The above 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).

[0075] For example, the sealing member (241) may be provided with an aluminum layer, an adhesive layer, etc., and may be adhered to the inner cup side wall (210) by induction, conduction, etc.

[0076] And the sealing member (241) can have various adhesive structures, such as having an adhesive portion (242) that is adhered to the outer surface of the inner cup side wall (210).

[0077] Meanwhile, as another example, the bottom portion (230) may include a cover member (251) that is coupled to the inner cup side wall portion (210) and separated from the inner cup side wall portion (210) by the pressing portion (300), that is, the punching portion (320, 330), particularly the annular punching portion (320).

[0078] The above cover member (251) is configured to be coupled 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 coupling structure as shown in FIG. 7.

[0079] By the structure as described above, when the pressing part (300), i.e., the punching part (320, 330), particularly the annular punching part (320) is lowered, the cover member (251) can be separated from the inner cup side wall part (210).

[0080] Meanwhile, with regard to the installation of the cover member (251), as shown in FIG. 7, the inner cup part (200) may be excluded and the cover member (251) may be coupled to the lower end of the inner side wall part (140).

[0081] And the connection structure of the cover member (251) and the inner side wall portion (140) can have various connection structures such as an insertion structure, and a protrusion (149) can be formed on the lower outer surface of the inner side wall portion (140) and a groove (252) into which the protrusion (149) is inserted can be formed on the inner surface of the cover member (251).

[0082] By means of the above structure, when the pressing part (300), i.e., the punching part (320, 330), particularly the annular punching part (320) is lowered, the cover member (251) can be separated from the inner side wall part (140).

[0083] Meanwhile, the inner cup part (200) described above can be additionally combined with an auxiliary cup part (400) containing a third material (3) that is combined with the first material (1) and the second material (2), as shown in FIG. 14.

[0084] The above auxiliary cup part (400) is configured to contain a third material (3) that is combined with the first material (1) and the second material (2) by being connected to the inner cup part (200), and various configurations are possible.

[0085] In particular, the auxiliary cup part (400) may have a configuration identical to or similar to that of the internal cup part (200) described above.

[0086] For example, the auxiliary cup part (400) may include, as illustrated in FIG. 14, an auxiliary cup part side wall part (410) inserted into the inside of the container inlet (20) and having the inner cup part (200) inserted therein, an auxiliary cup part wing part (420) supported by at least one of the outer stopper (100) and the container inlet (20) at the upper end of the auxiliary cup part side wall part (410), and an auxiliary cup part bottom part (430) integrally or detachably coupled to the lower end of the auxiliary cup part side wall part (410) to form an auxiliary space (SS2) in which a third material (3) is contained.

[0087] The above auxiliary cup side wall (410) is configured to be inserted into the inside of the container inlet (20) and have the inner cup (200) inserted inside, and can have various configurations, such as being configured identically or similarly to the inner cup side wall (210) of the inner cup (200) described above.

[0088] In particular, the auxiliary cup side wall (410) may have various contact structures with the inner cup side wall (210) of the inner cup (200), such as a protruding structure on the inner surface, for sealing.

[0089] In addition, the auxiliary cup side wall (410) may have various contact structures with the inner surface of the container inlet (20) - the inner surface of the inner side wall (140) if the inner side wall (140) is provided - in order to seal the inner surface of the container inlet (20) - the inner surface of the inner side wall (140) if the inner side wall (140) is provided - the inner surface of the inner side wall (140) if the inner side wall (140) is provided.

[0090] The above auxiliary cup wing part (420) is configured to be supported by at least one of the external stopper (100) and the container inlet (20) at the upper end of the auxiliary cup side wall part (410), and various configurations are possible depending on the joining target and joining structure.

[0091] For example, the auxiliary cup wing part (420) can be installed and supported on the upper end of the container inlet (20), as shown in FIG. 4.

[0092] In addition, as another example, the auxiliary cup wing portion (420) may be fixed to the inner surface of the outer plug (100), particularly the rim portion (130) or the inner side wall portion (140), by a rough structure, although not shown.

[0093] The above auxiliary cup bottom part (430) is configured to be integrally or detachably connected to the lower end of the auxiliary cup side wall part (410) to form an auxiliary space (SS2) in which a third material (3) is contained, and may have the same or similar configuration as the previously described bottom part (230) - integral structure, sealing member, cover member, etc. - and therefore, a detailed description thereof will be omitted.

[0094] Meanwhile, the auxiliary cup bottom part (430) is pressed together with the bottom part (230) by the pressing part (300) to open the auxiliary space (SS2), so that the second material (2) and the third material (3) fall and are mixed with the first material (1).

[0095] The above outer stopper (100) is configured to be coupled to the container inlet (20) so as to cover the inner cup part (200) coupled to the container inlet (20), and various configurations are possible depending on the coupling structure of the container inlet (20) and the inner cup part (200).

[0096] For example, the outer plug (100) may be formed as a single piece by plastic injection, and may include an outer plug side wall portion (110) and a pressing portion (300) that is installed so as to be able to move up and down on the inside of the outer plug side wall portion (110) and presses the bottom portion (230) by lowering to open the storage space (SS) downward.

[0097] The above side wall portion (110) is a side wall portion of the outer cap (100), and can have various configurations, such as being screw-connected to the container inlet (20).

[0098] The above side wall portion (110) has a female screw portion (111) formed on the inner surface that is screw-connected to a male screw portion (21) formed on the outer surface of the container inlet (20).

[0099] The above female screw portion (111) is a portion formed on the inner surface of the side wall portion (110) to be screw-connected to the male screw portion (21) formed on the outer surface of the container inlet (20), and may have various structures depending on the screw-connection structure.

[0100] And the lower part of the side wall portion (110) can be connected to a skirt portion (120) that is caught on a catch portion (22) formed on the outer surface of the container inlet (20) by a plurality of bridges.

[0101] The above skirt portion (120) is connected to the lower end of the side wall portion (110) by a number of bridges and is caught on a catch portion (22) formed on the outer surface of the container inlet (20), so that when a user turns the outer cap (100) to separate it from the container inlet (20), the bridges are broken, thereby performing a function of confirming whether the container has been opened.

[0102] At this time, the skirt portion (120) may have a protrusion (121) formed on its inner surface that protrudes inward to be caught by the catch jaw portion (22).

[0103] Meanwhile, the upper end of the side wall portion (110) may be provided with a partition portion (113) formed at a height equal to or higher than the height of the pressing plate (310) when it is positioned at the uppermost position in order to prevent the pressing plate (310) described later from being pressed arbitrarily.

[0104] The above-mentioned bulkhead portion (113) is configured to be formed at a height equal to or higher than the height when the pressing plate (310) is positioned at the uppermost side to prevent the pressing plate (310) described later from being pressed arbitrarily at the upper end of the side wall portion (110), and various configurations are possible.

[0105] The above pressing part (300) is installed so as to be able to move up and down on the inside of the outer plug side wall part (110) and is configured to pressurize the bottom part (230) by lowering to open the storage space (SS) downward. Various configurations are possible depending on the pressing structure.

[0106] For example, the pressing part (300) may include a pressing plate (310) that is positioned at the center of the inner side of the outer plug side wall part (110) and has a punching part (320, 330) extending downwardly to press the bottom part (230) on the lower surface, and an elastic membrane (340) that connects the inner side of the outer plug side wall part (110) and the pressing plate (310) so that the pressing plate (310) can move up and down.

[0107] The above pressing plate (310) is located at the inner center of the outer plug side wall portion (110) and has a punching portion (320, 330) formed on the lower surface to press the bottom portion (230) and extend downward, and various configurations are possible.

[0108] For example, the pressing plate (310) is preferably formed to be relatively thicker than the elastic membrane (340) described later, taking into account the function of allowing the user to press and lower the punching section (320, 330).

[0109] The above punching part (340) is configured to extend downward from the bottom surface of the pressing plate (310) so as to press the bottom part (230) by being lowered by the pressing action of the pressing plate (310), and various configurations are possible.

[0110] For example, the punching part (320, 330) may include an annular punching part (320) that is opened at the lower side and inserted in close contact with the inner surface of the inner cup side wall part (210).

[0111] The above-mentioned annular punching portion (320) extends downward from the bottom surface of the pressing plate (310), has an open lower side, and is inserted in a state of close contact with the inner surface of the inner cup side wall portion (210), and various configurations are possible.

[0112] In particular, the above-mentioned annular punching portion (320) is characterized by forming a sealed storage space (SS) by being inserted in close contact with the inner surface of the inner cup side wall portion (210).

[0113] To this end, the annular punching portion (320) may have various structures in which the outer surface is in close contact with the inner surface of the inner cup side wall portion (210).

[0114] For example, the annular punching portion (320) may have one or more protruding structures (321) on the outer surface that are in close contact with the inner surface of the inner cup side wall portion (210).

[0115] The above protruding structure (321) can have various close contact structures, such as being formed as a gently curved surface so as to reach surface contact rather than linear contact with the inner surface of the inner cup side wall (210).

[0116] The above-mentioned annular punching part (320) needs to smoothly perform operations such as cutting the separation groove (231) of the bottom part (230) or breaking the sealing member (241) by descending.

[0117] Accordingly, the annular punching part (320) may have a blade part (321) formed at the bottom to break the bottom part (230).

[0118] And, it is preferable that the above-mentioned annular punching part (320) has a diagonal shape when viewed from the side so that the pressing force is partially concentrated when pressing the bottom part (230).

[0119] By the structure as described above, when the annular punching part (320) is lowered, as seen in the drawing, a break or separation occurs on the left side of the bottom part (230), and the bottom part (230) with one side broken is bent to the other side by the additional lowering of the annular punching part (320).

[0120] Meanwhile, the above-mentioned annular punching part (320) has a cylindrical structure when viewed from the bottom, and may be structurally vulnerable.

[0121] Accordingly, as shown in FIG. 4 and FIG. 11, the punching section (320, 330) may additionally be formed with a central pressurizing section (330) that presses the bottom section (230) so that the bottom section (230) is folded on the inside of the annular punching section (320).

[0122] The central pressurizing portion (330) is formed on the inside of the annular punching portion (320) and pressurizes the bottom portion (230) so that the bottom portion (230) is folded, and various configurations are possible.

[0123] For example, the central pressurizing portion (330) may be formed in various shapes, such as a '-' or '+' shape, on the inside of the annular punching portion (320).

[0124] In particular, the central pressurizing portion (330) is formed in a state of being combined with the inner surface of the annular punching portion (320) to reinforce the structural rigidity of the annular punching portion (320).

[0125] The above elastic membrane (340) is configured to integrally connect the inner side of the outer plug side wall portion (110) and the pressing plate (310) so that the pressing plate (310) can move up and down, and various configurations are possible.

[0126] In particular, the elastic membrane (340) may have any configuration as long as it has a structure that can maintain the rising and falling states of the pressing plate (310) by elastic force when the pressing plate (310) moves up and down.

[0127] Meanwhile, the elastic membrane (340) may be connected to the inner surface of the outer plug 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).

[0128] In particular, the elastic membrane (340) can implement its function by being formed thinner than the thickness of the pressing plate (310).

[0129] Meanwhile, the outer plug (100) may be formed such that a rim portion (130) that is directly or indirectly in close contact with the upper end of the container inlet (20) when combined with the container inlet (20) extends inward from the inner circumferential surface of the outer plug side wall portion (110).

[0130] The above rim (130) is formed by extending inward from the inner surface of the outer plug side wall (110) so as to be in close contact directly or indirectly with the upper end of the container inlet (20) when combined with the container inlet (20), and various configurations are possible.

[0131] For example, as shown in FIGS. 1 to 7, when the outer cap (100) is coupled with the container inlet (20), the rim (130) can directly contact the upper end of the container inlet (20).

[0132] At this time, the outer stopper (100) may be formed such that an inner side wall portion (140) having at least a portion of the outer surface in close contact with the inner surface of the container inlet (20) and at least a portion of the inner surface in close contact with the outer surface of the inner cup side wall portion (210) may be extended downward from the lower end of the rim portion (130).

[0133] The inner side wall portion (140) is configured to extend downward from the lower end of the rim portion (130) so that at least a portion of the outer surface is in close contact with the inner surface of the container inlet (20) and at least a portion of the inner surface is in close contact with the outer surface of the inner cup side wall portion (210), and various configurations are possible.

[0134] Meanwhile, as another example, the rim portion (130) may be installed so that, when the outer stopper (100) is coupled with the container inlet (20), the rim portion (130) presses the cup coupling portion (220) of the inner cup portion (200) supported on the upper end of the container inlet (20) from the upper side, as shown in FIGS. 8 to 14.

[0135] Meanwhile, the pressing part (300) is configured to pressurize the bottom part (230) by descending and open the storage space (SS) downward. In addition to the configuration of the pressing plate (310) and the elastic membrane (340), any structure that can pressurize the bottom part (230) in a state where the punching part (320, 330) described above is formed on the bottom surface is possible.

[0136] For example, the pressing portion (300) may be formed by a thin film in an oval shape, and a punching portion (320, 330) may be formed by extending downward on the lower surface of the thin film.#

[0137] A container having a container closure assembly having the above configuration is utilized as follows.

[0138] First, the user presses the pressing part (300) to pressurize the bottom part (230) by lowering it, thereby opening the storage space (SS) downward.

[0139] When the above storage space (SS) is opened, the second material (2) contained in the storage space (SS) falls and is mixed with the first material (1) contained in the container (10).

[0140] At this time, the user can shake the container (10) with the container cap assembly assembled after the above operation to mix the first material (1) and the second material (2), and then use it for drinking or other purposes.

[0141] In particular, when the user shakes the container (10) and then rotates the outer stopper (100) to separate it from the container inlet (20), the inner cup part (200) is separated from the container inlet (20) while being connected to the outer stopper (100) by the structure described above.

[0142] Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately modified within the scope set forth in the claims.

Claims

1. An inner cup part (200) that is connected to the container inlet (20) of a container (10) containing a first material (1) and contains a second material (2) that is mixed with the first material (1); It includes an external stopper (100) coupled to the container inlet (20) to cover the inner cup part (200) coupled to the container inlet (20). The above inner cup part (200) is The inner cup side wall (210) inserted into the inside of the above container inlet (20), A cup joint (220) supported on at least one of the outer stopper (100) and the container inlet (20) at the top of the inner cup side wall (210), It includes a bottom part (230) that is integrally or detachably connected to the lower part of the inner cup side wall part (210) to form a storage space (SS) in which a second material (2) is contained. The above outer plug (100) has an outer plug side wall portion (110) that is screw-connected to the container inlet (20), A container closure assembly characterized by including a pressing part (300) that is installed so as to be able to move up and down on the inside of the outer closure side wall (110) and pressurizes the bottom part (230) by lowering to open the storage space (SS) downward.

2. In claim 1, The above pressing part (300) is A pressing plate (310) located at the inner center of the outer plug side wall (110) and having a punching portion (320, 330) extending downward to press the bottom portion (230) on the lower surface, A container closure assembly characterized by including an elastic membrane (340) connecting the inner side of the outer closure side wall (110) and the closure plate (310) so that the closure plate (310) can move up and down.

3. In claim 2, The above punching section (320, 330) is A container closure assembly characterized by including an annular punching portion (320) that is opened at the lower side and inserted in close contact with the inner surface of the inner cup side wall portion (210).

4. In claim 3, A container closure assembly characterized in that the above-mentioned annular punching portion (320) has a blade portion (321) formed at the bottom to break the bottom portion (230).

5. In claim 4, The above punching section (320, 330) is A container closure assembly characterized in that a central pressurizing portion (330) is additionally formed on the inside of the annular punching portion (320) to pressurize the bottom portion (230) so that the bottom portion (230) is bent.

6. In any one of claims 1 to 6, The above external plug (100) is A container cap assembly characterized in that a rim portion (130) that is directly or indirectly in close contact with the upper end of the container cap (20) when combined with the container cap (20) is formed by extending inward from the inner circumferential surface of the outer cap side wall portion (110).

7. In claim 6, A container closure assembly characterized in that when the outer closure (100) is combined with the container inlet (20), the rim (130) directly contacts the upper end of the container inlet (20).

8. In claim 7, The outer cap (100) is characterized in that the inner side wall portion (140) of which at least a portion of the outer surface is in close contact with the inner surface of the container inlet (20) and at least a portion of the inner surface is in close contact with the outer surface of the inner cup side wall portion (210) is formed to extend downward from the lower end of the rim portion (130).

9. In any one of claims 1 to 8, A container cap assembly characterized in that the cup coupling portion (220) is fixedly coupled to the inner surface of the outer cap (100) by a protrusion.

10. In any one of claims 1 to 9, The above bottom part (230) is formed integrally with the inner cup side wall part (210), A container cap assembly characterized in that a separation groove (231) is formed in a portion connected to the inner cup side wall portion (210) so that it can be broken when pressed by the pressing portion (300).

11. In any one of claims 1 to 9, A container closure assembly characterized in that the bottom portion (230) includes a sealing member (241) that is bonded to the inner cup side wall portion (210) and is broken when pressed by the pressing portion (300).

12. In any one of claims 1 to 9, A container closure assembly characterized in that the bottom portion (230) includes a cover member (251) that is coupled to the inner cup side wall portion (210) and separated from the inner cup side wall portion (210) by the pressing portion (300).

13. In any one of claims 1 to 12, When the above outer plug (100) is combined with the container inlet (20), A container cap assembly characterized in that the rim (130) presses the cup coupling portion (220) of the inner cup portion (200) supported on the upper side of the container inlet (20) from above.

14. In any one of claims 1 to 13, An auxiliary cup part (400) containing a third material (3) that is combined with the first material (1) and the second material (2) is connected to the inner cup part (200). The above auxiliary cup part (400) is An auxiliary cup side wall (410) inserted into the inside of the container inlet (20) and into which the inner cup (200) is inserted, An auxiliary cup wing (420) supported on at least one of the outer plug (100) and the container inlet (20) at the upper end of the auxiliary cup side wall (410), It includes an auxiliary cup bottom part (430) that is integrally or detachably connected to the lower part of the auxiliary cup side wall part (410) to form an auxiliary space (SS2) containing a third material (3). A container closure assembly characterized in that the auxiliary cup bottom part (430) is pressed together with the bottom part (230) by the pressing part (300) to open the auxiliary space (SS2).

15. A container containing a first substance (1), to which a container closure assembly according to any one of claims 1 to 14 is combined.

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