Container cap and the container to which it is attached

Abstract

The present invention relates to a container cap, and more specifically, to a container cap to be coupled to a container inlet of a container filled with a content, and a container to which the container cap is coupled. The present invention discloses a container cap, which includes a body part 100 coupled to a container inlet 20 of a container 30 to be filled with a content and having an opening formed on the upper side, a cover part 200 integrally connected to the body part 100 by a hinge part 530 and opening and closing the upper opening of the body part 100 by rotating the hinge, a separation part 300 integrally connected to the cover part 200 by a first connection part 510 and integrally connected to the body part 100 by a second connection part 520 so as to be separable from the body part 100, and a fixing part 400 formed on the cover part 200 so that the separation part 300 is fixedly coupled after the second connection part 520 is separated by a user's operation so that the cover part 200 can be separated from the body part 100.

Description

Technical Field

[0001] The present invention relates to a container cap, and more particularly, to a container cap coupled to a container inlet of a container filled with contents and the container to which it is coupled.

Background Art

[0002] A container cap is coupled to a container inlet where contents are filled, the container is sealed, and various types of container caps are coupled according to the type, discharge, opening, etc. of the contents filled in the container.

[0003] FIG. 1 is a perspective view showing a container to which a conventional container cap is coupled.

[0004] The conventional container cap according to the prior art is a container cap coupled to a container inlet of a container 3 filled with granular contents such as gum, and can be configured as shown in FIG. 1.

[0005] Specifically, the conventional container cap 1 shown in FIG. 1 is coupled to a container inlet of a container 3 filled with contents, and includes a main body portion 7 opened upward, a cover portion 5 coupled to the main body portion 7 and opening and closing the upper opening of the main body portion 7, and a use mark belt 9 coupled to the lower end of the cover portion 5 and the upper end of the main body portion 7, separated from the cover portion 5 and the main body portion 7 by a user, and enabling the cover portion 5 to open and close the upper opening of the main body portion 7.

[0006] Here, the use mark belt 9 is coupled to the lower end of the cover portion 5 and the upper end of the main body portion 7, separated from the cover portion 5 and the main body portion 7 by a user, and enables the cover portion 5 to open and close the upper opening of the main body portion 7.

[0007] Furthermore, the wear-mark belt 9 is formed together with the container cap 1 when it is formed by plastic injection molding, and is connected to the lower end of the cover portion 5 and the upper end of the main body portion 7. It is separated from the lower end of the cover portion 5 and the upper end of the main body portion 7 along separation lines 7a, 7b, such as notches or multiple bridges, formed at the lower end of the cover portion 5 and the upper end of the main body portion 7, and then removed.

[0008] However, in recent years, the rapid increase in plastic use has made waste plastic the main culprit in environmental pollution, and minimizing or recycling plastic use has become a national and social necessity.

[0009] On the other hand, the conventional container cap shown in Figure 1 has the problem that when the wear-mark belt 9 is used, the wear-mark belt 9 separates from the container cap 1, which increases the amount of waste plastic used, while making it difficult to recycle the plastic material.

[0010] Furthermore, the conventional container cap shown in Figure 1 has the problem that the user has to separate the wear-mark belt 9 along the circumference of the container cap 1, making the separation of the wear-mark belt 9 a cumbersome process. [Prior art documents] [Patent Documents]

[0011] [Patent Document 1] WO 2021 / 071348 A1 [Patent Document 2] WO 2021 / 010779 A1 [Overview of the project] [Problems that the invention aims to solve]

[0012] The objective of the present invention is to solve the aforementioned problems by realizing an integrated plastic container cap, thereby providing a container cap and a container to which it is attached that facilitate collection for recycling of waste plastics and are easy to use.

[0013] Another object of the present invention is to provide a container cap with improved sealing force to a container and a container to which it is attached, in order to solve the above-mentioned problems, the container cap comprising a main body portion coupled to the inlet of the container and a cover portion that is detached from the main body portion by hinge rotation. [Means for solving the problem]

[0014] The present invention was created to achieve the above-mentioned objectives of the present invention, and discloses a container cap characterized by comprising: a main body portion coupled to the container inlet of a container filled with contents and having an opening formed on its upper side; a cover portion integrally connected to the main body portion by a hinge portion and opening and closing the upper opening of the main body portion by hinge rotation; a separation portion integrally connected to the cover portion by a first connecting portion and integrally connected to the main body portion detachably by a second connecting portion; and a fixing portion formed on the cover portion such that the separation portion is fixedly connected after the second connecting portion is detachably separated from the main body portion by user operation.

[0015] When viewed from above while connected to the main body, the separation portion may have one or more recesses, and the fixing portion may have a protruding portion that is fitted into the recess of the separation portion when the separation portion is separated from the main body and pushed up, and may be connected to the separation portion.

[0016] The recess and the protrusion may each be formed in a pair corresponding to one another.

[0017] The recess may be formed with a narrower opening portion based on the direction of insertion, and the protrusion may be formed with a wider end portion corresponding to the opening portion of the recess.

[0018] When viewed from above, a first convex portion that further protrudes from the outer peripheral side to the central side is formed in the central portion of the concave portion, and the protruding portion may have a second convex portion that further protrudes facing the first convex portion of the concave portion.

[0019] When viewed from above, the fixing portion includes a covering portion having a projected area that includes all of the upper side of the protruding portion.

[0020] A locking portion that protrudes downward is formed in the covering portion from the center of the container cap to the end portion, and the separating portion may be separated from the main body portion and may have a fitting groove that is inserted into the locking portion in a state of being pushed upward.

[0021] An incision portion corresponding to the outer peripheral shape of the separating portion is formed in the main body portion, and one or more second connecting portions may be formed so as to be connected between the edge of the separating portion and the inner periphery of the incision portion.

[0022] The cover portion may have an inner ring that protrudes from the bottom surface and is inserted into the inner peripheral surface of the container inlet in order to enhance the sealing force of the container. [[ID=十七]]

[0023] A convex portion that is convexly formed inward may be formed in the container inlet so as to contact the inner peripheral surface of the inner ring in a state where the cover portion is coupled to the main body portion. The inner ring may protrude further downward at a portion corresponding to the hinge portion than at a portion corresponding to the fixing portion.

[0024] The inner ring includes a first portion that is formed with a preset angular size centered on the fixing portion and has a constant vertical distance, and a second portion that has the center of the hinge portion as the lowest point and the vertical distance increases downward from the first portion.

[0025] The cover portion may further have an auxiliary inner ring that is in close contact with the inner peripheral surface of the container inlet further outside the inner ring.

[0026] The cover part may have a second locking projection protruding inward so as to be locked to a first locking projection protruding outward near the upper end of the container inlet.

[0027] The main body part may be locked to a third locking projection formed on the outer peripheral side of the container inlet, and may have a fourth locking projection fixed to the container inlet.

[0028] The present invention further discloses a container including a container filled with contents and a container cap coupled to the container inlet of the container and having the above-described configuration.

Advantages of the Invention

[0029] The container cap according to the present invention and the container to which it is coupled are composed of a main body part coupled to the container inlet and having an opening formed on the upper side, and a cover part for opening and closing the opening of the main body part when checking the opening trace of the container or the like. By further including a separating part formed integrally with either one of the main body part and the cover part and separably coupled to the remaining one, there are advantages that recovery for waste plastic recycling is easy and it is easy to use.

[0030] That is, the container cap according to the present invention is integrally formed by plastic injection or the like for the main body part and the cover part, and thus has advantages that recovery for plastic recycling is easy and it is easy to use.

[0031] Since the container cap according to the present invention is opened by breaking the second connecting part at the first opening, there is no need for a configuration for separate use marks, and the structure is simple.

[0032] In particular, conventional container caps use a belt or other means to check whether the container has been used, which is separated from the cap, thus increasing the amount of unnecessary plastic used. However, the present invention opens by breaking a second connecting part that connects the separating part and the main body part upon first opening, so it can be operated with simple operation by the user, there is no need for a separate structure to indicate use, the structure is simple, and there are no environmental waste products.

[0033] Furthermore, the container cap according to the present invention has the advantage of providing a more airtight seal in its connection structure with the container opening, allowing the contents of various materials (tablets, powders, liquids, etc.) stored in the container's storage space to be safely protected from external air and moisture. [Brief explanation of the drawing]

[0034] [Figure 1] This is a perspective view showing a container with a conventional container cap attached. [Figure 2] This is a perspective view showing a container to which a container cap according to the first embodiment of the present invention has been attached. [Figure 3A] Figure 2 is a partial perspective view showing the container cap with the separation part connected to the fixing part. [Figure 3B] Figure 3A is a partial perspective view showing the cover in a curved state. [Figure 4A] Figure 2 shows a cross-sectional view in the AA direction. [Figure 4B] Figure 3A shows a cross-sectional view in the BB direction. [Figure 4C] Figure 3B shows a cross-sectional view in the CC direction. [Figure 5A] Figure 4A is an enlarged cross-sectional view showing a magnified view of portion D. [Figure 5B] Figure 4B is an enlarged cross-sectional view of section E. [Figure 6A] This is a front view of the state shown in Figure 2. [Figure 6B] This is a front view of the state shown in Figure 3A. [Figure 7]This is a view of the reverse side of the state shown in Figures 2 and 3A. [Figure 8] Figure 6B shows a cross-sectional view in the FF direction. [Figure 9] Figure 4A is a partial cross-sectional view showing a first example of the joint structure between the container opening and the cover portion of the container cap shown in Figure 4A. [Figure 10A-10J] These are partial cross-sectional views showing the second to tenth embodiments of the joint structure of the container inlet and cover portion of the container cap shown in Figure 4A. [Figure 11A] This is a perspective view of a container with a container cap attached according to a second embodiment of the present invention, before the separation of the separated portion. [Figure 11B] This is a perspective view showing the state in which the container cap attached to the container according to the second embodiment of the present invention is separated from the separation part and attached to the fixing part. [Figure 12A] Figure 11A is a cross-sectional view in the A1-A1 direction. [Figure 12B] Figure 11B shows a cross-sectional view in the B1-B1 direction. [Figure 13A] This is a front view of the state shown in Figure 11A. [Figure 13B] This is a front view of the state shown in Figure 11B. [Figure 14] This is a view of the reverse side of the state shown in Figure 11A. [Figure 15] This is a perspective view showing a container cap according to a third embodiment of the present invention. [Figure 16A] Figure 15 is a perspective view of the container cap before separation of the separation section. [Figure 16B] Figure 15 is a perspective view showing the state in which the separation part of the container cap is separated and connected to the fixing part. [Figure 17A] Figure 15 is a plan view of the container cap before separation of the separation section. [Figure 17B] Figure 15 is a plan view showing the state in which the separation part of the container cap is separated and the fixing part is connected. [Figure 17C] Figure 15 is an enlarged perspective view showing a magnified view of section G. [Figure 18]This is a perspective view showing a container cap according to a fourth embodiment of the present invention. [Figure 19A] Figure 18 is a cross-sectional view of the container cap before separation of the separation portion. [Figure 19B] Figure 18 is a cross-sectional view showing the state in which the separation part of the container cap is separated and connected to the fixing part. [Figure 19C] Figure 18 is a cross-sectional view showing the state in which the cover portion of the container cap has separated from the container opening and been pushed up. [Figure 19D] Figure 18 is a cross-sectional view showing the state in which the sealing member has been separated from the cover portion of the container cap. [Figure 19E] Figure 18 is a cross-sectional view showing the state after the sealing member of the container cap has been separated and the cover portion has been reattached to the container opening. [Figure 19F] Figure 18 is a perspective view showing the state after the sealing member of the container cap has been separated and the cover portion has been reattached to the container opening. [Figure 20] Figure 18 is a partial cross-sectional view showing an example of a sealing member provided on the container cap. [Figure 21] This is a perspective view showing a container cap according to a fifth embodiment of the present invention. [Figure 22] Figure 21 is a perspective view showing the container cap with the separation part separated and the fixing part connected. [Figure 23A] Figure 21 is a cross-sectional view of the container cap before separation of the separation portion. [Figure 23B] Figure 21 is a cross-sectional view showing the state in which the separation part of the container cap is separated and connected to the fixing part. [Modes for carrying out the invention]

[0035] The container cap and the container (container assembly) to which it is attached according to the present invention will be described below with reference to the attached drawings.

[0036] As shown in Figure 2, the container 30 is a container filled with liquid substances, solid substances, and especially granular or powdery contents. Any configuration is possible as long as it can be filled with contents, and a container inlet 20 is formed through which the contents are discharged to the outside and to which the container cap 10 is attached. Any shape and structure is possible.

[0037] Furthermore, considering the bonding strength of the container cap 10 according to the present invention, the container 30 is preferably filled with granular or powdery contents, but it is also possible to fill it with liquid contents.

[0038] Furthermore, while the container 30 can be sealed by connecting a sealing member (not shown) to the opening of the container inlet 20 to prevent deterioration of the contents before use, the present invention has the characteristic of having sufficient sealing force even without a sealing member.

[0039] The upper opening of the container inlet 20 is the part through which the contents filled in the container 30 are discharged. It may have various planar shapes such as a circle, an ellipse, or a polygon, but it is preferable that it be formed to form a circle when viewed from above for stable connection.

[0040] However, while the planar shape of the container inlet 20 and the container cap 30 connected thereto is preferably circular, it is of course possible for them to have various shapes such as squares or polygons.

[0041] Furthermore, the container inlet 20 may have various ring-shaped protrusions 21, 22, and 23 formed on its outer and inner surfaces for connection and sealing with the container cap 10, which will be described later.

[0042] Furthermore, as shown in Figures 2 to 4C, the container inlet 20 may have various outer diameters, such as having the same outer diameter as the container 30 or a relatively smaller outer diameter.

[0043] In particular, in the embodiments of the present invention, the container inlet 20 may have a structure in which the inner diameter decreases as it approaches the upper opening.

[0044] The container cap 10 is connected to the container inlet 20 and is configured to seal and open / close the container 30, and various configurations are possible.

[0045] Here, the material of the container cap 10 is a plastic material, and any material that can be injection-molded, such as HDPE, PP, PET, PVC, or PS, is possible.

[0046] On the other hand, the container cap 10 can be composed of a main body portion 100 that is connected to the container inlet 20 of the container 30, and a cover portion 200 that is connected to the main body portion 100 by a hinge portion 530 and opens and closes the main body portion 100, i.e., the container inlet 20, by the rotation of the hinge.

[0047] More specifically, as shown in the figure, the container cap 10 includes a main body portion 100 which is connected to the container inlet 20 of the container 30 into which the contents are filled and has an opening formed on its upper side, and a cover portion 200 which is integrally connected to the main body portion 100 by a hinge portion 530 and opens and closes the upper opening of the main body portion 100 by the rotation of the hinge.

[0048] The main body 100 is connected to the container inlet 20 of the container 30 into which the contents are filled, and an opening is formed on its upper side. Various configurations are possible depending on the connection structure with the container inlet 20.

[0049] As an example, the main body portion 100 can have a ring shape that corresponds to the horizontal end face shape of the container inlet 20, such as a circle, ellipse, or polygon.

[0050] Furthermore, the main body portion 100 can be screw-connected to the male threaded portion formed on the outer circumferential surface of the container inlet 20, and for this purpose, a female threaded portion is formed on the inner circumferential surface of the main body portion 100 to be screw-connected to the male threaded portion of the container inlet 20.

[0051] Furthermore, the main body portion 100 may have a fourth locking projection 110 which is fixed to the container inlet 20 and is locked to a third locking projection 21 formed on the outer circumference of the container inlet 20.

[0052] The fourth locking projection 110 is a ring-shaped locking projection formed on the inner surface so as to be fixed to the container inlet 20 and to engage with the third locking projection 21 formed on the outer circumference of the container inlet 20. Any structure is possible as long as it engages with the third locking projection 21. In particular, the fourth locking projection 110 is inclined downward from the top to the inside,

[0053] In this case, the third locking projection 21 of the container inlet 20 may be formed such that, as shown in the figure, with the main body 100 coupled to the container inlet 20, its end portion is in close contact with the upper inclined surface of the fourth locking projection 110 at a position corresponding to the fourth locking projection 110.

[0054] Furthermore, as shown in Figures 3A and 3B, the container inlet 20 has a recess 21a formed in it that is recessed by the thickness of the lower end of the main body 100, so that when the main body 100 is joined, the outer surface of the container inlet 20 and the outer surface of the main body 100 form a continuous surface.

[0055] The cover portion 200 is integrally connected to the main body portion 100 by a hinge portion 530, and the upper opening of the main body portion 100 is opened and closed by the rotation of the hinge, allowing for various configurations.

[0056] Here, the hinge portion 530 is a part that connects the main body portion 100 and the cover portion 200 so that the main body portion 100, which is coupled to the container inlet 20, can rotate at a hinge, and can have various shapes and structures.

[0057] The cover portion 200 is connected to the main body portion 100 by various conventional structures in order to maintain a state of connection with the main body portion 100 when the container 30 is not in use, and the upper opening of the main body portion 100 can be closed.

[0058] Furthermore, in addition to being connected to the main body 100, the cover portion 200 can also be connected to a part of the upper end portion of the container inlet 20.

[0059] In this case, it is preferable that the cover portion 200 is connected to the upper end of the cover portion 200 so that it can be separated from the main body portion 100 without rotation relative to the container inlet 20.

[0060] Furthermore, it is preferable that the cover portion 200 is connected to the upper end of the container inlet 20 with a barrier structure described later applied to prevent deterioration of the contents when connected to the container inlet 20.

[0061] On the other hand, the main body portion 100 and the cover portion 200 have a structure in which they are cut vertically in the portion excluding the hinge portion 530, and the hinge portion 530 is a strip-shaped part having a predetermined circumferential width in the circumferential direction and can be integrally connected to the main body portion 100 and the cover portion 200.

[0062] In this case, the hinge portion 530 can be made thinner than the thickness of the main body portion 100 and the cover portion 200 so that it can be easily bent.

[0063] Furthermore, as shown in Figures 4A to 5B, the hinge portion 530 is formed more deeply on the main body portion 100 side, by forming an incision portion 531 on the main body portion 100 side equal to the width of the hinge portion 530, thereby enabling the hinge rotation of the cover portion 200.

[0064] In other words, when the cover portion 200 rotates relative to the main body portion 100, it is preferable that the thinnest portion is formed at a position lower than the upper end of the main body portion 100, so that the portion that is folded folds to a position lower than the upper end of the main body portion 100.

[0065] On the other hand, the container inlet 20 can be connected to the main body 100 as well as the cover 200, and it is preferable that the connection with the cover 200 be structured in a way that enhances the sealing force.

[0066] As a result, the cover portion 200 can form an inner ring 280 that protrudes from the bottom surface and is inserted into the inner circumferential surface of the container inlet 20 in order to enhance the sealing force of the container 30.

[0067] The inner ring 280 is configured to protrude from the bottom surface of the cover portion 200 and be inserted into the inner circumferential surface of the container inlet 20 in order to enhance the sealing force of the container 30, and can have various shapes.

[0068] As shown in Figures 4A to 5B, the inner ring 280 has a predetermined distance from the inner circumferential surface of the cover portion 200 and is formed to protrude downward from the bottom surface of the cover portion 200 in a ring shape.

[0069] In this case, the inner ring 280 is formed to a thickness that allows it to be smoothly inserted into the inner circumferential surface of the container inlet 20, and its thickness can be reduced as the lower end portion moves downwards.

[0070] Furthermore, the container inlet 20 may have a convex portion 23 formed inward so as to contact the inner circumferential surface of the inner ring 280 when the cover portion 200 is connected to the main body portion 100.

[0071] The aforementioned protrusion 23 is configured to seal the inside of the container 30 by contacting the outer circumferential surface of the inner ring 280 at the upper end of the container inlet 20, and can be formed as a convex curved surface.

[0072] On the other hand, considering that the cover portion 200 is hinged and rotated relative to the main body portion 100 by the connection of the hinge portion 590, the inner ring 280 may have a portion corresponding to the hinge portion 510 that protrudes further downward than the portion corresponding to the fixing portion 400.

[0073] In particular, when the cover portion 200 rotates due to the hinge portion 590 connecting the cover portion 200 and the main body portion 100, it is preferable that the inner ring 280 is formed to have a sufficient vertical distance in the portion corresponding to the hinge portion 590 so that it is possible to rotate by a certain angle while the outer surface of the inner ring 280 is in contact with the upper end portion of the container inlet 20.

[0074] The inner ring 280 may include a first portion 281 formed with a predetermined angular size with the fixing portion 400 as its angular center and having a constant vertical distance, and a second portion 282 with the center of the hinge portion 510 as its lowest point and increasing vertical distance downward from the first portion 281.

[0075] The first portion 281 is configured with a constant vertical distance such that its lower end portion is horizontal, and the second portion 282 can be formed such that the center of the hinge portion 510 is the lowest point and the vertical distance gradually increases.

[0076] In this case, the vertical distance of the first portion 281 also increases gradually, or the vertical distance of the second portion 282 remains constant in a certain section.

[0077] Furthermore, it is preferable that the elasticity and folding portion of the hinge portion 590 are determined such that, after the inner ring 280 separates from the upper end portion of the container inlet 20 due to the rotation of the cover portion 200, the end of the inner ring 280 is not prevented from being inserted into the inner circumferential surface side of the container inlet 20 during recombination.

[0078] On the other hand, when the cover portion 200 is coupled to the container inlet 20, in order to enhance its sealing force, the cover portion 200 may further have an auxiliary inner ring 293 formed outside the inner ring 280 that is in close contact with the inner circumferential surface of the container inlet 30.

[0079] The auxiliary inner ring 293 is formed by extending downward from the bottom surface of the cover portion 200 so as to be in close contact with the inner circumferential surface of the container inlet 30, and its vertical distance can be made relatively smaller than that of the inner ring 280.

[0080] On the other hand, the inner ring 280, auxiliary inner ring 293, etc., are components for sealing when connected to the cover portion 200 and the container inlet 20, and it is preferable that they be formed of a thickness and material that allows for elastic deformation.

[0081] On the other hand, the cover portion 200 may have a second locking projection 210 that protrudes inward so as to be locked into a first locking projection 22 that protrudes outward near the upper end of the container inlet 20.

[0082] The first locking projection 22 is a portion that protrudes from the outer circumference near the upper end of the container inlet 20, and its vertical cross-sectional shape can be formed into a pointed, angular shape.

[0083] In this state, the first locking projection 22 is positioned higher than the upper end of the main body 100 when the main body 100 is attached, and can be easily attached to the cover 100.

[0084] The second locking projection 210 is formed on the inner circumferential surface of the cover portion 200 and locks with the first locking projection 22, thereby connecting the cover portion 200 to the container inlet 20. Various configurations are possible.

[0085] In particular, the inner circumferential surface of the second locking projection 210 may have an inclined portion 211 formed thereon, into close contact with the end portion of the first locking projection 22.

[0086] On the other hand, the upper end portion of the container inlet 20 and the cover portion 200 can be modified and implemented in various ways to increase the sealing force against the container inlet 20.

[0087] In the first embodiment, the container inlet 20 can form a ring-shaped upper end groove 29 into which the aforementioned auxiliary inner ring 291 is inserted, as shown in Figure 9.

[0088] Furthermore, the container inlet 2 can have a ring-shaped locking groove 26 formed on the outer circumferential surface of its upper end portion into which a ring-shaped locking projection 220, which is formed to protrude from the inner circumferential surface of the cover portion 200, is inserted.

[0089] The locking projection 220 is formed above the second locking projection 210 and is a ring-shaped projection that, together with the second locking projection 210, can increase the binding force between the cover portion 200 and the container inlet 20.

[0090] The locking groove 26 is a portion formed in a relatively concave shape on the outer circumferential surface of the container inlet 20 so that the locking projection 220 can be inserted, and may have a structure into which the locking projection 220 fits.

[0091] In the second embodiment, as shown in Figure 10A, the container inlet 20 has a ring-shaped inclined surface 28 formed on its outer circumference, with the outer diameter increasing from the upper end, and with the cover portion 200 coupled to the container inlet 20, one or more ring-shaped protrusions 292a, 292b can be formed in contact with the inclined surface 28.

[0092] The inclined surface 28 is a portion formed on the outer circumferential surface of the container inlet 20 such that its outer diameter increases from the upper end, and can have various shapes such as a flat surface or a curved surface.

[0093] Furthermore, the protrusions 292a and 292b are formed to protrude from the cover portion 200 and contact the inclined surface 28, thereby isolating the inside and outside of the container 30, and their numerical values ​​can be determined according to the sealing force.

[0094] Furthermore, the protrusions 292a and 292b can be formed to protrude from the bottom surface, inner circumferential surface, etc. of the cover portion 200, or they can be formed as steps, as shown in Figure 10A, and various other shapes are possible.

[0095] On the other hand, in the second embodiment, the container inlet 20 and the cover portion 200 can have the structure of the locking projection 220 and the locking groove 26 in the first embodiment.

[0096] The third embodiment is a modification of the first embodiment, in which the shape of the ring-shaped upper end groove 29 into which the auxiliary inner ring 291 is inserted can be modified, as shown in Figure 10B.

[0097] Specifically, the protruding portion 28a on the inner circumference side of the upper end groove 29 can be formed lower than the protruding portion 28b on the outer circumference side.

[0098] On the other hand, in the third embodiment, the container inlet 20 and the cover portion 200 can have the structure of the locking projection 220 and the locking groove 26 in the first embodiment.

[0099] In the fourth embodiment, as shown in Figure 10C, the cover portion 200 has a ring-shaped inclined surface 230 that connects the bottom surface and the inner circumferential surface, and one or more ring-shaped protrusions 27 that contact the inclined surface 230 can be formed at the upper end portion of the container inlet 20.

[0100] The fifth embodiment, as shown in Figure 10D, is the reverse of the fourth embodiment, in which a ring-shaped inclined surface 28 is formed at the upper end of the container inlet 20, and one or more ring-shaped protrusions 272 that contact the inclined surface 28 can be formed on the cover portion 200.

[0101] The sixth embodiment, as shown in Figure 10E, is a modification of the fourth embodiment, in which the cover portion 200 has a ring-shaped inclined surface 230 connecting the bottom surface and the inner circumferential surface, and one or more ring-shaped stepped protrusions 26 that contact the inclined surface 230 can be formed at the upper end portion of the container inlet 20.

[0102] In the seventh embodiment, as shown in Figure 10F, the depth of the locking groove 28, that is, the depth from the outer surface to the inner surface, can be formed to be greater than half the upper end width of the container inlet 20, compared to the first embodiment.

[0103] In the eighth embodiment, as shown in Figures 10G to 10J, a ring-shaped inclined portion 24 is formed on the inner circumferential surface side of the container inlet 20, and the cover portion 200 can form one or more ring-shaped auxiliary inner rings 291 that are in contact with the inclined portion 24.

[0104] Specifically, as shown in Figure 10G, an inclined portion 24 consisting of a plurality of ring-shaped protrusions 24a is formed on the inner circumferential side of the container inlet 20, and one or more auxiliary inner rings 291 can be formed so as to contact at least one of the plurality of ring-shaped protrusions 24a.

[0105] In particular, the auxiliary inner ring 291 is formed to be thin in thickness, and when it comes into contact with the multiple ring-shaped protrusions 24a, it bends in the inclined direction, allowing it to tightly seal the container inlet 20 by coming into close contact with the multiple ring-shaped protrusions 24a.

[0106] As shown in Figure 10H, the inclined portion 24 can be formed as a flat or curved surface, and one or more auxiliary inner rings 291 can be formed so as to be in contact with the inclined portion 24.

[0107] On the other hand, as a modified example of Figure 10G, as shown in Figure 10I, the cover portion 200 can form an inclined surface 295 that contacts the inclined portion 24, that is, the plurality of ring-shaped protrusions 24a.

[0108] Finally, as shown in Figure 10J, a plurality of ring-shaped protrusions 24a are formed at the upper end of the container inlet 20, and one or more auxiliary inner rings 291 can be formed so as to contact at least one of the plurality of ring-shaped protrusions 24a. On the other hand, the connection and sealing structure between the cover portion 200 and the container inlet 20 may have the structure shown in Figures 27A to 34C of Patent Document 1.

[0109] Furthermore, the cover portion 200 can be connected vertically to the main body portion 100 by a separation line (not shown) or a number of bridges (not shown), taking into consideration the bonding force to the main body portion 100 before opening.

[0110] Furthermore, the cover portion 200 can be connected to the main body portion 100 before opening in the structure shown in Figures 21A to 21C of Patent Document 1. Due to this configuration, the hinge portion 530 can be formed integrally with the cover portion 200 and the main body portion 100 during injection molding.

[0111] <Separation part and fixing part> On the other hand, as shown in Figures 2 to 8, the container cap 10 according to the present invention further includes a separation portion 300 which is integrally connected to the cover portion 200 by a first connecting portion 510 and integrally connected to the main body portion 100 by a second connecting portion 520 in a separable manner, for the purpose of opening or closing the container cap 10 and opening and closing the container inlet 20, and a fixing portion 400 formed on the cover portion 200 so that the separation portion 300 can be fixedly connected after the second connecting portion 520 is separated from the main body portion 100 by the user's operation.

[0112] The separation portion 300 is formed on the cover portion 200 so that after the second connecting portion 520 is broken by the user's operation and separated from the main body portion 100, the separation portion 300 is fixedly connected to the fixing portion 400. Various combinations of the separation portion 300 and the fixing portion 400 are possible.

[0113] Specifically, the separation section 300 is integrally connected to the cover section 200 by a first connecting section 510 and integrally connected to the main body section 100 in a detachable manner by a second connecting section 520, and various configurations are possible.

[0114] Here, the first connecting portion 510 is configured to integrally connect the cover portion 200 and the separation portion 300, and considering that the separation portion 300 will be pushed up after separation, it is preferable to form it with a film (thin film) that is thinner than the side thickness of the cover portion 200 and the main body portion 100.

[0115] The angle at which the separation portion 300 is pushed up can be set in various ways depending on the coupling structure with the fixing portion 400, and various angles such as 90° can be set.

[0116] Furthermore, the width of the first connecting portion 510 can be varied, such as having a circumferential width that is smaller than or the same as the width of the separating portion 300.

[0117] The second connecting portion 520 is configured to connect the main body portion 100 and the separation portion 300 in a separable manner, and various configurations are possible.

[0118] In particular, the second connecting portion 520 is characterized in that it can be broken by the user's operation, and the cover portion 200 can be separated from the main body portion 100.

[0119] Specifically, the second connecting portion 520 can be configured in any way that allows it to be easily separated by the user, such as by being formed with an incision groove or multiple bridges so that it can be easily broken by the user's operation, or by being separated by various methods such as cutting.

[0120] On the other hand, the second connecting portion 520 can be connected in various structures and positions depending on the formation structure of the separating portion 300 and the main body portion 100.

[0121] As an example, the second connecting portion 520 can be connected horizontally and / or vertically along the edge of the separating portion 300.

[0122] In summary, the second connecting portion 520 is configured to connect the separating portion 300 to the main body portion 100 during the integral injection molding of the main body portion 100 and the cover portion 200. It is the portion that breaks when the user operates it, i.e., when the separating portion 300 is pressed upward, and can be formed by one or more bridges that are relatively small in width and thin in thickness.

[0123] Furthermore, the formation position of the second connecting portion 520 can be determined by considering the stable connection state and breakage of the separating portion 300 with respect to the main body portion 100, and as shown in Figure 6A, it can be formed on both side edges when the separating portion 300 is viewed from the front.

[0124] On the other hand, in relation to the formation of the separation portion 300, the main body portion 100 may have an incision portion 190 formed therein that corresponds to the outer peripheral shape of the separation portion 300, and one or more second connecting portions 520 may be formed so as to be connected between the edge of the separation portion 300 and the inner circumference of the incision portion 190.

[0125] In particular, the incision portion 190 can be formed near the boundary where the main body portion 100 and the cover portion 200 meet, to a size corresponding to the front outer shape of the separation portion 300.

[0126] On the other hand, when the separation portion 300 is connected to the main body portion 100, it can form one or more recesses 310 when viewed from above.

[0127] At this time, the fixing portion 400 can be connected to the separating portion 300 by separating the separating portion 300 from the main body portion 100 in accordance with the recess 310, and pushing it up, thereby forming a protruding portion 410 that fits into the recess 310 of the separating portion 310.

[0128] After the separation portion 300 is separated from the main body portion 100, it is coupled to the fixing portion 200, creating a space below the separation portion 300 coupled to the fixing portion 200 that allows for easy operation by the user's fingers.

[0129] On the other hand, the recess 310 and the protrusion 410 can each be formed as a pair corresponding to one another.

[0130] On the other hand, as shown in Figures 6A, 6B, and 8, the recess 310 is formed with a narrower entrance portion relative to the direction of insertion, and the protrusion 410 may be formed with a wider end portion corresponding to the entrance portion of the recess 310.

[0131] In other words, as shown in Figure 8, when viewed from above, the recess 310 has a first protrusion 319 that further protrudes from the outer side toward the center in the central portion, and the protrusion 410 can have a second protrusion 411 that further protrudes opposite to the first protrusion 319 of the recess 310.

[0132] Furthermore, the recess 310 can be formed relatively by a central projection 310a that protrudes upward and a pair of outer projections 310b that are spaced apart with respect to the central projection 310a, when viewed from above with the separation portion 300 coupled to the fixing portion 100.

[0133] The central projection 310a can have a trapezoidal shape, with its end portion narrowing when viewed from above, while the separating portion 300 is connected to the fixing portion 100.

[0134] On the other hand, the projection 410 of the fixing portion 400 is a portion formed so that it can be inserted into the recess 310 of the separating portion 300 when the separating portion 300 is separated from the main body portion 100 and pushed up, and can have various shapes.

[0135] The projection 410 is formed at a position corresponding to the recess 310 when the separation portion 300 is pushed up, and can form an insertion groove that is relatively formed at the position into which the Zhongyang projection 310a is inserted when viewed from above.

[0136] The insertion groove may have a trapezoidal shape that narrows towards the outside, as shown in Figure 8.

[0137] Furthermore, it is preferable that the projection 410 is formed in a shape in which its width narrows as it moves upward, with reference to the longitudinal direction of the container inlet 20, that is, the longitudinal direction of the container cap 10.

[0138] On the other hand, as shown in Figures 4A to 4C, the separation portion 300 can be formed so that its lower end portion 311, in particular, protrudes further from the outer peripheral surface of the main body portion 100, in order to facilitate operation by the user.

[0139] In other words, the aforementioned recess 310 can be naturally formed by the portion of the separating part 300 that further protrudes outward from the outer peripheral surface of the main body part 100.

[0140] On the other hand, the separation portion 300 is subjected to upward pressure from the bottom surface side of the lower end portion 311 by the user's operation, causing the second connecting portion 520 to break. However, the lower end portion 311 can be made to protrude further relative to the outer surface of the main body portion 100 so that the user's finger can be easily inserted, or, as shown in Figures 11A and 11B, a concave finger insertion recess 170 can be formed on the lower side of the separation portion 300 while the separation portion 300 is connected to the main body portion 100.

[0141] The finger entry recess 170 is formed in a concave shape on the lower side of the separation portion 300 when the separation portion 300 is connected to the main body portion 100, and is configured to allow a finger to easily enter, and may have various shapes.

[0142] The fixing portion 300 is formed on the cover portion 200 so that after the second connecting portion 520 is separated by the user's operation so that the cover portion 200 can be separated from the main body portion 100, the separating portion 300 is fixedly connected. Any configuration is possible as long as it can be connected to the connecting portion 300.

[0143] As an example, as described above, if the connecting portion 300 has a recess 310 formed in it, the fixing portion 400 can form a protruding portion 410 that is inserted into the recess 310 in accordance with the formation of the recess 310.

[0144] On the other hand, the fixing portion 400 may include a covering portion 490 having a projected area that includes the entire upper part of the protruding portion 410 when viewed from above.

[0145] The cover portion 490 has a locking portion 491 that protrudes downward from the center to the end portion of the container cap, and the separation portion 300 can be separated from the main body portion 100 and folded upward to form a fitting groove 391 that fits into the locking portion 491.

[0146] Furthermore, the covering portion 490 can be formed to be larger than the vertical projected area of ​​the separating portion 300 when viewed from above, or, as shown in Figures 11A to 14, to be smaller than the vertical projected area of ​​the separating portion 300 when viewed from above.

[0147] In addition to the connection of the recess 310 and projection 410 as described above, the combination of the locking portion 491 and the fitting groove 391 enables a firm connection between the separation portion 300 and the fixing portion 400.

[0148] On the other hand, in the state shown in Figures 2 and 4A, when the separation part 300 is separated from the main body part 100 by the user's operation and then connected to the fixing part 400, the state shown in Figures 3A and 4B is achieved, and the user can separate the cover part 200 from the container inlet 20 by applying upward pressure to the separation part 300 and the fixing part 400 which are connected to each other.

[0149] Furthermore, after the contents of the container 30 are discharged, the user can rotate the cover portion 200 again to reattach it to the container inlet 20.

[0150] As described above, the sealed connection between the cover portion 200 and the container inlet 20 allows the inside of the container 30 to remain sealed.

[0151] On the other hand, while the container cap 10 according to the present invention, as described with reference to Figures 2 to 8, was described as having a circular shape when viewed from above, it can also have a polygonal shape such as an octagon, as shown in Figures 11A to 14.

[0152] The container cap 10 according to the second embodiment of the present invention has almost the same or similar configuration as the container cap of the first embodiment of the present invention, except that when viewed from above, it has an octagonal structure (various polygonal structures such as quadrilaterals (squares, rectangles, etc.) and hexagons are possible), so a detailed explanation will be omitted. It goes without saying that the shape of the inner circumferential surface of the container inlet 20 can also be an octagonal structure (various polygonal structures such as quadrilaterals and hexagons are possible) in addition to a circular shape.

[0153] Here, if the container cap 10 and the container inlet 20 have a polygonal structure, they may have curvature near the vertices.

[0154] On the other hand, the aforementioned separation section 300 and fixing section 400 can be implemented in various ways. The container cap according to the third embodiment of the present invention will be described below with reference to Figures 15 to 17C.

[0155] Specifically, in the container cap according to the third embodiment of the present invention, only the structure of the separation part 300 and the fixing part 400 has been changed, so only the changed parts will be described.

[0156] First, the separation portion 300 has a recess 310 formed in its lower end portion 311, so that when viewed from the side, it can be formed in an "L" shape.

[0157] Furthermore, the fixing portion 400 can form a projection 410 into which the separating portion 300 is separated from the main body portion 100 and pushed up, and inserted into the recess 310 of the separating portion 300.

[0158] In particular, the fixing portion 400 has a mounting surface 440 that the lower end portion 311 of the separating portion 300 makes contact with, and the projection 410 can be formed by a protruding rod that protrudes upward.

[0159] In other words, the fixing portion 400 is a fitting portion into which the separating portion 300 is fitted in a "U" shape when the separating portion 300 is pushed upward, and can be formed in the cover portion 200.

[0160] Here, the upper portion of the lower end portion 311 of the separation portion 300 is formed by a curved surface 312 that corresponds to the shape of the lateral outer surface of the fixing portion 400.

[0161] The mounting surface 440 can form a gentle surface with the upper surface of the cover portion 200 when the separation portion 300 is connected, or it can be formed into a concave groove so as to have relatively little protrusion.

[0162] On the other hand, the third embodiment shown in Figures 15 to 17C can be adapted to various configurations depending on the formation positions of the projection 410 and the recess 310, as shown in the fifth embodiment (see Figures 21 to 23B).

[0163] In other words, as shown in Figures 21 to 23B, the projection 410 can protrude from the outer circumferential surface of the cover portion 200, and in this case, the recess 310 can be formed according to the formation position and end face shape of the projection 410.

[0164] For example, the projection 410 can be "-" or "l" shaped when viewed from the side of the cover portion 200, and the recess 310 can be formed with corresponding "-" or "l" shaped slits.

[0165] Furthermore, when the separation portion 300 is pushed upward, an auxiliary projection 441 may be further formed on the lower side of the projection 410 to support the thin portion of the first connecting portion 510.

[0166] The container cap according to the fourth embodiment of the present invention will be described below with reference to Figures 18 to 19C.

[0167] A container cap according to the fourth embodiment of the present invention is a modification of the first to third embodiments of the present invention, further comprising a sealing member 40 whose bottom surface is attached to the upper end of the container inlet 12 of the container 10 and which is coupled to the container cap 10, particularly the cover portion 200, to seal the container 10.

[0168] The sealing member 40 has its bottom surface attached to the upper end of the container inlet 20 of the container 30 and is coupled to the container cap 10, particularly the cover portion 200, to seal the container 30. Various configurations are possible depending on the coupling structure of the container cap 10, particularly the cover portion 200.

[0169] In particular, the sealing member 40 is characterized in that, when the cover portion 200 is separated from the container inlet 20, the bonding force between the sealing member 40 and the container cap 10 is greater than the bonding force between the container inlet 20 and the sealing member 40, so that the cover portion 200 can be separated from the container inlet 20.

[0170] As an example, the sealing member 40 may include a metal sheet layer 611 and a first resin layer 613 and a second resin layer 615 bonded to the upper and lower surfaces of the metal sheet layer 611, as shown in Figure 16.

[0171] In this case, it is preferable that the upper surface 21a of the container inlet 20 be formed flat for the attachment of the sealing member 40.

[0172] The aforementioned metal sheet layer 611 is a metal layer that adheres to the upper surface 22a of the container inlet 20 by the rigidity of the sealing member 40 and by induction or conduction. In addition to aluminum and aluminum alloy, any metal material used in commercially available sealing members is possible.

[0173] The metal sheet layer 611 may have a thickness of 6 μm to 200 μm.

[0174] The first resin layer 613 and the second resin layer 615 are resin layers bonded to the upper and lower surfaces of the metal sheet layer 611, and may be made of PET in particular.

[0175] The first resin layer 613 and the second resin layer 615 may have a thickness of 10 μm to 150 μm.

[0176] At this time, the first resin layer 613 and the second resin layer 615 can be bonded to the top and bottom surfaces of the metal sheet layer 611, respectively, by an adhesive layer (not shown) on the surface of the aluminum sheet material.

[0177] Here, the adhesive layer is a material used to bond a resin layer such as PET to the surface of the aluminum sheet material, and commercially available adhesives for sealing members, as described later, can be used.

[0178] The sealing member 40 having the structure described above can seal the container 30 with sufficient adhesive force due to the bonding force when the container cap 10 is bonded to the container inlet 20, and can be easily separated when the container cap 10 is separated from the container inlet 20, thus having the advantage of easy sealing and separation of the container 30.

[0179] For reference, the sealing member 40 can be separated from the container opening 20 while the container cap 10 is separated, with the end of the edge portion 41 fitted into the container cap 10, and the container cap 10 is separated.

[0180] In particular, a portion of the edge portion 41 of the bottom surface of the sealing member 40 is attached to the upper surface of the support portion 733, thereby making the bonding force of the sealing member 40 to the container cap 10 greater than the bonding force to the upper surface 22a of the container inlet 20.

[0181] On the other hand, in addition to the embodiments described above, the sealing member 40 can be configured in various ways depending on the materials of the container 30 and the container cap 10 for adhesion to the upper surface 12a of the container inlet 20 and adhesion to the container cap 10.

[0182] In particular, the sealing member 40 can have a functional layer formed on at least one of its top and bottom surfaces that provides an easy-peel function.

[0183] As an example, the sealing member 40 is a structure for application to the container assembly according to the present invention, and a CPP layer 617 can be formed on the bottom surface of the second resin layer 615.

[0184] The CPP layer 616, together with the adhesive layer 617, is a layer having heat-bonding properties to provide an easy-peel function, and is made of cast polypropylene.

[0185] The CPP layer 616 may have a thickness of 10 μm to 30 μm.

[0186] To enhance the adhesive performance of the sealing member 40 to the container inlet 20, an adhesive layer 617 for adhesion to the upper surface 22a of the container inlet 20 can be formed on the bottom surface of the CPP layer 616.

[0187] The adhesive layer 617 is a layer for adhesion to the upper surface 22a of the container inlet 20, and may be made of an easy-peel material that is conventionally used for adhesion between resins. The adhesive layer 617 may have a thickness of 10 μm to 500 μm.

[0188] On the other hand, since the sealing member 40 according to the present invention must have a lower bonding force to the container inlet 20 compared to the bonding force to the container cap 20, adhesive performance that provides an easy peeling function is preferable.

[0189] For this reason, the sealing member 40 according to the present invention can have an easily peelable layer formed on the surface that comes into contact with the upper surface 22a of the container inlet 20, which is composed of acrylic, urethane, polyethylene (LDPE, LLDPE, MDPE, HDPE), metallocene polyethylene, polypropylene, SBR (styrene-butadiene-rubber), EVA, EAA, EEA, EMAA, EMA, IONOMER, Surlyn, polyester, copolymer, easily peelable resin, etc., as an easily peelable layer to provide an easily peelable function.

[0190] As another example, the sealing member 40 may consist of seven layers from top to bottom: 1) an easily peelable coating layer (1-100 μm, 322), 2) a PET layer made of polyester film (12-350 μm, 313), 3) a polyurethane adhesive layer (1-12 μm, 312), 4) a rigid 1-100 μm aluminum foil layer (611), 5) a polyurethane adhesive layer (1-12 μm, 312), 6) a PET layer made of polyester film (12-350 μm, 315), and 7) an easily peelable coating layer (1-100 μm, 321).

[0191] On the other hand, the sealing member 40 can be made of various materials as disclosed in WO2022 / 065883, in addition to the embodiment shown in Figure 20.

[0192] <Easy-peel functional layer> There are two methods for forming the layer having the aforementioned easy-peel function: liquid coating and melt extrusion coating.

[0193] The liquid coating method involves creating a liquid material made from a combination of resins such as m-PE, LDPE, HDPE, LLDPE, PP, EVA, olefin, EAA, EMA, EMAA, EEA, and rubber, which is either water-based or oil-based, and coating the surface of films and sheets using a gravure printing machine (M / C), microgravure machine (M / C), or dry lamination machine (M / C).

[0194] The melt extrusion coating method extrudes films and sheets with a constant thickness using an extrusion laminating M / C. Resin chips combined with resins such as m-PE, LDPE, HDPE, LLDPE, PP, EVA, olefin, EAA, EMA, EMAA, EEA, and rubber are extruded through a T-die while being melted at high temperature in the range of 150 - 350 °C by adjusting the thickness.

[0195] <Adhesive layer> For the adhesive layer, a two-component polyurethane with excellent heat resistance, cold resistance, and water resistance is used, and it can be adhered by a method of bonding films or sheets with an adhesive and then post-curing using a dry lamination M / C. The adhesive can be composed of a main agent (polyester, polyether), a curing agent (isocyanate), and a solvent (MEK, EA).

[0196] <PET film layer> The biaxially oriented polyester film has excellent heat resistance and cold resistance, and corona discharge treatment is performed on both sides to maintain the surface tension in the range of 36 - 60 dyne / cm.

[0197] <Aluminum foil layer (metal sheet layer)> Hard aluminum or soft aluminum can be used, and a foil with a surface tension of 60 dyne / cm or more on both sides can be used. Materials such as A1235, A1100, etc. of the A1000 series with an aluminum purity of 99% or more can be used.

[0198] <Release Co-EX film layer> It is a functional film that is a multilayer co-extruded film with a release function added to the heat adhesive layer. Films are produced in multiple layers by combining resins such as m-PE, LDPE, HDPE, LLDPE, PP, EVA, olefin, EAA, EMA, EMAA, EEA, and rubber. The films can be produced in various forms from single-layer films to 12-layer films depending on the form of the extruder.

[0199] <Co-EX film layer> This is a multilayer co-extruded film, the most commonly used form for general heat bonding applications. It is produced by combining resins such as m-PE, LDPE, HDPE, LLDPE, PP, EVA, olefin, EAA, EMA, EMAA, EEA, and G. It lacks easy-release properties and is primarily used for heat bonding. Depending on the extruder configuration, the film can be produced in various forms, from single-layer to 12-layer films.

[0200] The sealing member 40 described above utilizes the heat generated from the metal sheet layer by the application of high frequency (i.e., induction method) to adhere its upper surface to the lower surface of the joint portion 230 of the container cap 20, and its bottom surface to the upper surface 22a of the container inlet 20.

[0201] In this case, the upper and lower surfaces of the sealing member 40 may be configured to have different physical properties, and the sealing member 40 may be provided with markings for distinguishing the lower and upper surfaces, such as colors, symbols, or letters.

[0202] On the other hand, with the above-described configuration, the sealing member 40 has a relatively greater bonding force to the cover portion 200, so when the cover portion 200 is separated from the container inlet 20, the sealing member 40 can also be separated from the container inlet 20.

[0203] Furthermore, in order to separate the sealing member 40 from the container inlet 20, the user can rotate the container cap 10 relative to the container inlet 20, and then separate the cover portion 200 from the container inlet 20.

[0204] Furthermore, as shown in Figure 19C, the sealing member 40 having the above configuration can be used either after the container cap 20 has been separated from the container inlet 20, or while it is stored inside the container cap 20.

[0205] In particular, when the sealing member 40 is used while stored inside the container cap 20, it has the advantage of ensuring a certain degree of adhesive force to the container opening 20, thereby maintaining the sealing effect of the container 60 to a certain extent.

[0206] To this end, the rigidity of the sealing member 40 can be reinforced by increasing the thickness of the edge portion 61, particularly the thickness of the metal sheet layer 611, or by forming it to be harder.

[0207] Furthermore, the sealing member 40 can be reinforced by forming ribs or the like on the upper surface 22a of the container inlet 20 and the bottom surface of the joint portion 230 of the container cap 20, at a level that does not hinder adhesion and sealing, in order to further enhance its rigidity.

[0208] On the other hand, the cover portion 200 includes a cover portion body 810 that is coupled to the container inlet 20, and a seal member separation portion 820 provided on the cover portion body 810 for separating the seal member 40 from the cover portion body 810.

[0209] The cover portion body 810 is formed integrally with the main body portion 100, is hinged to the main body portion 100, and is connected to the container inlet 20, and may have various structures.

[0210] The cover body 810 may be cylindrical in shape to correspond to the planar shape of the container inlet 20.

[0211] Furthermore, the cover body 810 can be connected to the container inlet 20 by fitting and coupling.

[0212] Furthermore, the cover body 810 can be composed of a partition wall portion 812 formed above the connecting portion 830 (described later) and at the same level as or higher than the upper surface of the pressing portion 821 (described later), and a container connecting portion 811 that connects to the container inlet 20.

[0213] The partition wall portion 812 is formed to be equal to or higher than the upper surface of the pressing portion 821, which will be described later, so that the pressing portion 821, which will be described later, does not press on it arbitrarily, and various configurations are possible.

[0214] The container coupling portion 811 is the part that is coupled to the container inlet 20, and various configurations are possible depending on the coupling structure of the container inlet 20, and it can be configured to seal the inside of the container 30 before and after the removal of the sealing member 40.

[0215] Furthermore, the container coupling portion 811 is formed integrally with the main body portion 100 and is configured to rotate at the hinge portion 530, and can have various structures as described above depending on the coupling structure of the container inlet 20.

[0216] On the other hand, when the cover portion 200 is separated from the container inlet 20, the sealing member 40 attached to the upper end of the container inlet 20 must also be separated, and the sealing member 40 must be coupled to the cover portion 200.

[0217] Here, various embodiments are possible depending on the coupling structure between the sealing member 40 and the cover portion 200.

[0218] In one embodiment of the present invention, the upper surface of the sealing member 40 is attached to the cover body 810, and therefore the cover body 810 may include a connecting portion 830 to which the upper surface of the edge 41 of the sealing member 40 is attached, corresponding to the portion connected to the upper surface 22a of the container inlet 20.

[0219] The aforementioned connecting portion 830 is configured such that the upper surface of the edge 41 of the sealing member 40 is attached to the portion that is connected to the upper surface 22a of the container inlet 20, and various configurations are possible.

[0220] In other words, the connecting portion 830 is formed to protrude further inward from the inner circumferential surface of the cover portion body 810 so as to be in close contact with the upper surface of the sealing member 40, and is formed integrally with the cover portion body 810.

[0221] As an example, the connecting portion 830 can have a flat surface that is in close contact with the upper surface of the sealing member 40, as shown in Figures 19A to 19C.

[0222] A container cap according to the fourth embodiment of the present invention, having the configuration described above, operates as follows.

[0223] First, before the initial opening, the sealing member 40 and the container cap 20 that seal the container opening 20 are connected to the container opening 20.

[0224] When the user separates the container cap 20 by rotating or snapping it, the container cap 20 and the sealing member 40 are separated together from the container inlet 20 by the relative magnitude of the bonding force between the sealing member 40 and the container cap 20.

[0225] After the contents of the container 30, such as for drinking, have been discharged, the user can seal the container 30 by reattaching the container cap 20 to the container opening 20.

[0226] In this case, the sealing member 40 can ensure a certain degree of sealing force due to the easy-peel function of the surface that contacts the container inlet 20.

[0227] On the other hand, if the user presses the pressing part 821 as selected, the sealing member 40 can be separated from the container cap 20 and removed.

[0228] On the other hand, the cover body 810 can form a support portion 733 that protrudes inward at a distance from the bottom surface of the connecting portion 830 to which the upper surface of the sealing member 40 contacts, so as to maintain the state in which the sealing member 20 separated from the container inlet 20 is connected to the container cap 20.

[0229] The support portion 733 is formed to protrude inward from the inner circumferential surface of the cover portion body 810, with a gap between it and the bottom surface of the connecting portion 830 with which the upper surface of the sealing member 40 contacts, so as to maintain the state in which the sealing member 20 separated from the container inlet 20 is connected to the container cap 20. Various configurations are possible.

[0230] The support portion 733 can be any shape as long as a part of the edge of the sealing member 40 can be inserted into it, and the gap between the bottom surface of the joint portion 830, which the upper surface of the sealing member 40 contacts, can be made to be large or small, substantially the same as the thickness of the sealing member 40.

[0231] On the other hand, the support portion 733 is in contact with the outer circumferential inclined surface 22b of the container inlet 20 and can be used to seal the container inlet 20 when the cover portion 200 is coupled to the container inlet 20.

[0232] In particular, the support portion 733 contacts the outer circumferential inclined surface 22b of the container inlet 20 even when the sealing member 40 is removed, and the container inlet 20 can be sealed when the cover portion 200 is coupled to the container inlet 20.

[0233] The sealing member separation portion 820 is provided on the cover body 810 and is configured to separate the sealing member 40 from the cover body 810, and various configurations are possible.

[0234] As an example, the seal member separation portion 820 may include, as shown in Figures 18 to 19D, a pressing portion 821 that moves downward to pressurize the seal member 40 and separate the seal member 40 from the cover portion body 810, and a connecting portion 822 that connects the cover portion body 810 and the pressing portion 821 so that the pressing portion 821 can move downward by elastic deformation.

[0235] The pressing portion 821 is configured to move downward to pressurize the sealing member 40 and separate the sealing member 40 from the cover body 810, and any configuration in which it is provided on the cover body 810 so as to be movable downward is possible.

[0236] For example, the pressing portion 821 may have various planar shapes such as circular, elliptical, rectangular, or star-shaped.

[0237] Furthermore, the pressing portion 821 can perform various functions depending on the structure of the connecting portion 822, such as maintaining a lowered state when pressed by the user or returning to its original position by elasticity.

[0238] On the other hand, the pressing portion 821 may be provided with one or more pressurizing portions 323 on its bottom surface for pressurizing the sealing member 40.

[0239] The pressurizing portion 323 is configured to pressurize the sealing member 40 by the downward movement of the pressing portion 821, and one or more such portions can be formed.

[0240] The pressurizing section 323 can have any configuration as long as it is capable of pressurizing the sealing member 40.

[0241] For example, the pressurizing portion 323 can have various shapes, such as being formed in a ring shape or a semicircle.

[0242] As another example, the pressurizing portion 323 can have various shapes depending on the planar shape of the pressing portion 821.

[0243] For example, the pressing portion 821 can be formed eccentrically from the center of the container cap 20, and in this case, the pressurizing portion 323 can have various structures depending on the position and shape of the pressing portion 821.

[0244] Furthermore, if the pressing portion 821 is eccentrically circular from the center of the container cap 20, the pressurizing portion 323 may have various planar shapes such as a circle or a square.

[0245] The connecting portion 822 is configured to connect the cover body 810 and the pressing portion 821 so that the pressing portion 821 can be moved downward by the elastic deformation, and various configurations are possible.

[0246] In particular, it is preferable that the connecting portion 822 is formed integrally with the pressing portion 821 and the cover portion body 810.

[0247] Furthermore, it is preferable that the connecting portion 822 maintains its vertical movement state, such as being returned to its original position after the pressing portion 821 descends. For this purpose, it can have various structures such as a thin film or a bellows structure.

[0248] Furthermore, as shown in Figures 19A to 19D, the connecting portion 822 can be formed together with the pressing portion 821 to separate the cover portion body 810 vertically.

[0249] In other words, it is preferable that the entire container cap 20 is formed by injection molding, and that the sealing member separation portion 820 is formed integrally with the cover portion body 810 so as to seal the container 30 when the cover portion body 810 is coupled to the container inlet 20.

[0250] At this time, another auxiliary space S1 is formed when the sealing member 40 is connected to the container cap 20 and sealed, and the auxiliary space S1 may be filled with an auxiliary substance that can be consumed together with the beverage.

[0251] The aforementioned auxiliary substance can be any substance that can be filled into the auxiliary space S1, such as granular substances, powders, or liquid substances.

[0252] Furthermore, although not shown in the figures, the connecting portion 822 can be formed into multiple strip-like shapes that are elastically deformable between the inner circumference of the cover portion body 810 and the pressing portion 821.

[0253] In this case, since the connecting portion 822 cannot seal the container cap 20 in the vertical direction, it is preferable to maintain the state in which the sealing member 40 is connected to the container cap 30.

[0254] On the other hand, when the connecting portion 822 is formed in multiple strip-like shapes, various configurations such as a zigzag structure or a wire structure are possible.

[0255] Furthermore, one or more bridges (not shown) can be formed along the circumferential direction between the inner circumference of the cover body 810 and the pressing portion 821, so as to confirm whether or not the pressing portion 821 has initially descended.

[0256] The bridge is provided along the circumferential direction so as to confirm whether or not the pressing portion 821 has initially descended, and is formed in the shape of a thin strip connecting the inner circumference of the cover body 810 and the pressing portion 821. Here, it is preferable that the connecting portion 822 is elastically deformable to allow the pressing portion 821 to descend, and it is preferable that the bridge 219 is formed to break when the pressing portion 821 descends.

[0257] On the other hand, a container assembly having the above-described configuration can be used through the following process.

[0258] First, depending on the type of contents to be filled into the container 30, such as beverages (milk, vinegar, soy sauce, juice, soybean oil, sauces, etc.), alcoholic beverages, engine oil, antifreeze, cooking oil, dairy products, etc., the sealing member 40 is inserted into the container cap 20 and then connected to the container 30.

[0259] Furthermore, by applying high frequency, i.e., induction, the sealing member 40 adheres to the joint portion 830 of the container cap 20 and the upper surface 22a of the container inlet 20, thereby sealing the container 30.

[0260] The container assembly, which is sold after going through the process described above, is used by the user by separating the container cap 20 from the container 30.

[0261] At this time, when the container cap 20 is separated from the container 30, the bonding force of the seal member 40 to the container cap 20 is greater than the bonding force to the container inlet 20, and as the container cap 20 is separated, the seal member 40 is also separated from the container inlet 20.

[0262] As the seal member 40 is separated together when the container cap 20 is separated, the user can tilt the container 30 and drink or use the contents according to the purpose.

[0263] On the other hand, the user can repeatedly use the contents filled in the container 30 except when using them all at once. In this case, the container cap 20 is coupled to the container 30 to seal the container 30.

[0264] At this time, due to the configuration of the seal member 40, when it is re-coupled to the container 30 while being coupled to the container cap 20, the container 30 can be effectively sealed by sufficiently providing a sealing force for the container 30.

[0265] Also, the container assembly according to the present invention has a feature of providing sufficient sealing force of the container cap 20 to the container 30 even when the seal member 20 is removed from the container cap 20 due to the above-described structure.

[0266] Furthermore, the container assembly according to the present invention can provide sufficient sealing force of the container cap 20 to the container 30 even when the seal member 20 is removed from the container cap 20 as follows.

[0267] On the other hand, in the case of the fourth embodiment of the present invention, although the embodiment provided with the separation part 300 and the fixing part 400 has been described, it is needless to say that it can also be implemented in a state where the separation part 300 and the fixing part 400 are not provided.

[0268] <Role of the handle and injection molding> On the other hand, in the container cap 10 according to the present invention, at least one of the separation portion 300 and the fixing portion 400 is positioned opposite the hinge portion 530, and the separation portion 300 and the fixing portion 400, which are connected to each other, can be used as a handle to separate the cover portion 200 from the main body portion 100 and open the container 30 by operation of the user.

[0269] On the other hand, a container cap 10 having the above-described configuration can be formed from a synthetic resin material by injection molding.

[0270] In this case, the container cap 10 according to the present invention is preferably formed such that the main body portion 100, the cover portion 200, and the separation portion 300 are integrally formed, taking into consideration ease of manufacturing and recycling after use.

[0271] <Container structure> On the other hand, the container cap 10 having the above configuration can be attached to containers of various structures, such as the container disclosed in WO 2021 / 071348 A1.

[0272] In particular, the container cap 10 according to the present invention is suitable for a container 30 filled with powder, especially granular contents, and the container 30 structure can also be specialized for discharging granular contents.

[0273] On the other hand, although the container cap 10 according to the above embodiment was described as having a structure in which the main body portion 100 and the cover portion 200 are integrally formed by a hinge portion 530, it goes without saying that it may also have a configuration in which the main body portion 100 and the cover portion 200 are separated from each other, i.e., a two-piece structure, without a hinge portion 530.

[0274] The above describes only some of the preferred embodiments that can be embodied by the present invention. As is well known, the scope of the present invention should not be interpreted as being limited to the above embodiments. Rather, the technical idea of ​​the present invention and its foundations, as described above, are all included within the scope of the present invention.

Claims

1. A main body that is connected to the container opening of the container into which the contents are filled, and has an opening formed on the upper side, The main body and the hinge are integrally connected, and the cover portion opens and closes the upper opening of the main body by the rotation of the hinge, A separation portion is integrally connected to the cover portion by a first connecting portion and is detachably integrally connected to the main body portion by a second connecting portion, The cover portion is formed such that the second connecting portion is separated from the main body portion by user operation, and the separated portion is fixedly connected thereto. Includes, When the separation portion is connected to the main body portion and viewed from above, one or more recesses are formed therein. The fixing portion is formed when the separating portion is separated from the main body portion and pushed up, and a protruding portion is fitted into the recess of the separating portion, and is connected to the separating portion. The fixing portion includes a covering portion having a projected area that, when viewed from above, includes the entire upper part of the protruding portion. The aforementioned cover portion has a locking portion that protrudes downward from the center to the end portion of the container cap. The separation portion is separated from the main body portion, pushed upward, and fitted into the locking portion and connected to the fixing portion. The connecting portion and the fixing portion are pressed upward and used as a handle to separate and release the cover portion from the main body portion. A container cap characterized by the following features.

2. The container cap according to claim 1, characterized in that the recess and the protrusion are each formed in a pair corresponding to each other.

3. The container cap according to claim 1, characterized in that the recess is formed with a narrow opening portion based on the direction of insertion, and the protrusion is formed with a wider end portion corresponding to the opening portion of the recess.

4. When viewed from above, the recess has a first protrusion that further projects from the outer side toward the center in the central portion. The container cap according to claim 3, characterized in that the protruding portion has a second protruding portion that further protrudes opposite to the first protruding portion of the recess.

5. The main body portion has an incision portion formed therein that corresponds to the outer circumferential shape of the separation portion. The container cap according to claim 1, characterized in that the second connecting portion is formed of one or more such portions that they are connected between the edge of the separating portion and the inner circumference of the cutting portion.

6. The container cap according to claim 1, characterized in that the cover portion has an inner ring that protrudes from the bottom surface and is inserted into the inner circumferential surface of the container opening in order to enhance the sealing force of the container.

7. The container cap according to claim 6, characterized in that the container opening has a convex portion formed inward so as to contact the inner circumferential surface of the inner ring when the cover portion is coupled to the main body portion.

8. The container cap according to claim 6, characterized in that the portion of the inner ring corresponding to the hinge portion protrudes further downward than the portion corresponding to the fixing portion.

9. The container cap according to claim 6, characterized in that the inner ring includes a first portion formed with a predetermined angular size with the fixing portion as the angular center and having a constant vertical distance, and a second portion with the center of the hinge portion as the lowest point and increasing vertical distance downward from the first portion.

10. The container cap according to claim 7, characterized in that the cover portion has an auxiliary inner ring formed further outside the inner ring, which is in close contact with the inner circumferential surface of the container opening.

11. The container cap according to claim 1, characterized in that the cover portion has a second locking projection that protrudes inward so as to engage with a first locking projection that protrudes outward near the upper end of the container opening.

12. The container cap according to claim 1, characterized in that the main body is locked to a third locking projection formed on the outer circumference of the container opening, and a fourth locking projection is formed which is fixed to the container opening.

13. A container into which the contents are filled, The container cap is connected to the container inlet of the container and is the container cap according to any one of claims 1 to 12, A container containing...

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