Container cap and container to which it is attached

Abstract

The present invention relates to a container cap and a container to which the container cap is connected. The present invention discloses a container cap including an inner cap supported by a support portion formed on an inner peripheral surface of a container inlet of the container and having a storage space with an open top, and an outer cap connected to the container inlet and sealing the storage space.

Description

[Technical field]

[0001] The present invention relates to a container cap and a container to which it is coupled. [Background technology]

[0002] Liquid substances such as beverages, liquid medicines, yogurt, etc. are distributed in containers, and a user drinks the contents contained therein by separating a cap coupled to the container from the container.

[0003] On the other hand, as an example of a conventional container, Patent Document 1 proposes a container cap for drinking together with a powder, granules, or the like as a drinking form, and a container to which the cap is attached.

[0004] The container cap of Patent Document 1 comprises a container containing liquid contents when connected to the container, an inner cap having an internal space for a solid tablet, and an outer cap connected to the container so as to prevent the liquid contents from flowing into the internal space when connected to the container.

[0005] The container cap having the above-mentioned configuration provides convenience for a user to open the outer cap by separating it from the container and take the liquid contents and the solid tablet at the same time.

[0006] However, while the container cap of Patent Document 1 provides the basic function of allowing the liquid contents and solid tablets to be ingested at the same time, the structure needed to be reinforced not only to seal the internal space in which the tablets are placed (to prevent air from entering to protect the tablets), but also to seal the inside of the container (to safely store the liquid contents inside the container). [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Korean Patent No. 10-2261135 Summary of the Invention [Problem to be solved by the invention]

[0008] The object of the present invention is to provide an inner cap which is connected to a container inlet and forms an internal space for containing powder or granular auxiliary contents, and a container cap having a structure which can reliably seal the internal space provided in the inner cap and the inside of the container when connected to the container inlet, and a container cap to which the inner cap is connected. [Means for solving the problem]

[0009] The present invention has been created to achieve the above-mentioned object of the present invention, and discloses a container cap including an inner cap supported by a support portion formed on the inner surface of the container inlet of a container, and having a storage space with an open upper side, and an outer cap connected to the container inlet and sealing the storage space.

[0010] The inner cap includes a cup portion in which the storage space is formed, and a cup support portion supported by the support portion, the cup support portion being connected to the cup portion by one or more connecting bridges such that an inner peripheral surface of the cup portion is spaced from an outer peripheral surface of the cup portion.

[0011] An upper end of the cup support portion may be formed lower than an upper end of the container inlet.

[0012] The cup support may be formed with one or more protrusions that are inserted into one or more inner cap supports formed on an inner circumferential surface of the container inlet.

[0013] The protrusion may include a first protrusion formed on an upper end of the cup support.

[0014] The cup support portion may have a stepped portion formed so that the thickness is reduced at the portion where the first protrusion portion is formed, and the outer cap may have a first inner ring extending downward from the bottom surface thereof, the first inner ring being in close contact with the stepped portion when the outer cap is coupled to the container inlet so as to seal the inside of the container.

[0015] The protrusion may further include one or more second protrusions formed below the first protrusion and spaced apart from each other.

[0016] The cup support and the protrusion may be ring-shaped.

[0017] 3. The container cap according to claim 2, wherein the connecting bridge is formed in a plurality of parts in a circumferential direction based on a horizontal center of the cup portion.

[0018] The connecting bridge may be formed in a plurality of parts in the vertical direction.

[0019] The outer cap may be formed with a second inner ring that is in close contact with an inner circumferential surface of a side wall of the cup portion.

[0020] The cup portion may have a protruding ring formed from a bottom surface of the bottom of the cup portion, spaced inward from the inner surface of the side wall of the cap portion so as to form a first insertion groove into which the lower end of the second inner ring is inserted.

[0021] An upper end portion of a side wall of the cup portion may have a thickness reduction portion formed therein, and the second inner ring may have a contact portion formed therein so as to contact closely with an inner peripheral surface of the thickness reduction portion.

[0022] The outer cap may have a third inner ring formed at a distance from the outside of the second inner ring to define a second insertion groove into which an upper end of the cup portion is inserted.

[0023] The present invention also discloses a container (container assembly) having a container cap attached thereto, the container cap comprising a container having a container inlet formed therein and a container cap attached to the container inlet, the container cap being characterized in that the container cap has the configuration as described above. Effect of the Invention

[0024] The container cap according to the present invention and the container cap to which it is attached have an advantage that when the inner cap is attached to the container inlet and the outer cap is attached to the container inlet, the internal space and the inside of the container are provided with a structure that seals the internal space and the inside of the container, thereby enabling the internal space and the inside of the container to be reliably sealed.

[0025] In addition, the container cap according to the present invention and the container cap to which it is combined have a structure with a reinforced barrier structure, i.e., a sealed structure, so that solid tablets can be safely stored in the inner cap.

[0026] Furthermore, the container cap according to the present invention and the container cap to which it is combined are safer for storing liquid contents due to the reinforcement of the barrier structure (sealing structure) between the outer cap and the container inlet.

[0027] The container cap according to the present invention and the container cap to which it is combined can omit the sealing member for sealing the container inlet, thereby simplifying the assembly between the outer cap, the inner cap and the container, and reducing production costs. [Brief description of the drawings]

[0028] [Figure 1] 1 is a perspective view showing a container cap and a container to which it is coupled in accordance with the present invention; [Diagram 2] FIG. 2 is an exploded perspective view of the container and container cap of FIG. [Figure 3A] FIG. 2 is an exploded perspective view of the container and container cap of FIG. [Figure 3B] FIG. 3B is an exploded perspective view of the container and container cap of FIG. 3A. [Figure 4A]FIG. 4 is an enlarged cross-sectional view of part A in FIG. [Figure 4B] FIG. 4 is an enlarged cross-sectional view of part B in FIG. [Figure 4C] FIG. 4 is an enlarged cross-sectional view of a portion C in FIG. [Diagram 5] FIG. 4B is an enlarged cross-sectional view of a portion D in FIG. 4A. [Figure 6] 2 is a plan view showing the inner cap of the container cap of FIG. 1. [Figure 7] FIG. 7 is a side view of the inner cap of FIG. 6. [Figure 8] FIG. 7 is a bottom view of the inner cap of FIG. 6. [Figure 9] FIG. 7 is a perspective view of the inner cap of FIG. 6. [Figure 10] FIG. 7 is a cutaway view of the inner cap of FIG. 6. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a container cap and a container (container assembly) to which the container cap is combined according to the present invention will be described with reference to the accompanying drawings.

[0030] As shown in Figures 1 to 10, the container cap according to the present invention includes an inner cap 100 that is supported by a support portion 311 formed on the inner surface of the container inlet 12 of a container 10 and has a storage space S with an open upper side, and an outer cap 200 that is screwed to the container inlet 12 and seals the storage space S.

[0031] Here, the storage space S can be utilized as a space for storing auxiliary contents other than the liquid contents stored inside the container 10.

[0032] The auxiliary contents are substances that are not mixed with the liquid contents stored inside the container 10 and are mixed at the time of actual use, such as when drinking, and may consist of various solid substances such as powders, grains, and granules.

[0033] However, it goes without saying that the auxiliary contents may be in a liquid form.

[0034] Furthermore, the auxiliary contents may of course be a substance stored separately in the storage space S in addition to being mixed with the liquid contents stored inside the container 10.

[0035] The container 10 is a container into which contents can be put, and is configured to hold drinkable liquid contents such as beverages, yogurt, etc., and can have various configurations.

[0036] In particular, the container 10 is formed with a container inlet 12 for receiving a container cap, which will be described below.

[0037] The container inlet 12 is an outlet through which the contents are discharged, and is the portion to which a container cap is attached, and can have various configurations depending on the attachment structure with the container cap described below.

[0038] In particular, the container inlet 12 can be coupled to an overcap 200, described below, by various coupling structures, such as a screw coupling or a snap-fit ​​coupling.

[0039] As an example, the container inlet 12 can be screwed to the outer cap 200, and for this purpose, a male threaded portion 320 can be formed to be screwed to a female threaded portion 271 formed on the inner surface of the side wall portion 270 of the outer cap 200.

[0040] In addition, the container inlet 12 may have a skirt locking protrusion 330 formed in a ring shape to lock a skirt 290 connected to the lower end of the outer cap 200 by a number of bridges 291 .

[0041] The inner cap 100 is supported by a support portion 311 formed on the inner peripheral surface of the container inlet 12 of the container 10, and a storage space S with an open upper side is formed, and various configurations are possible.

[0042] As an example, the inner cap 100 may include a cup portion 110 in which the storage space S is formed, and a cup support portion 120 connected to the cup portion 110 by one or more connecting bridges 130 so that an inner peripheral surface is spaced from an outer peripheral surface of the cup portion 110, and supported by the support portion 311.

[0043] The cup part 110 is configured to form the storage space S, and may have various configurations.

[0044] In other words, the cup portion 110 may have any structure as long as the storage space S is kept sealed when the outer cap 200 described below is attached, and the storage space S is opened when the outer cap 200 is separated.

[0045] For example, the cup part 110 may have any structure, such as a cylindrical or rectangular bowl structure, that is open at the top.

[0046] The cup support portion 120 is connected to the cup portion 110 by one or more connecting bridges 130 so that its inner surface is spaced from the outer surface of the cup portion 110, and is supported by a support portion 311 formed at the container inlet 12. Any configuration is possible as long as the cup support portion 120 can support the cup portion 110 by being connected to the inner surface of the container inlet 12 while connected to the cup portion 110.

[0047] For example, the cup support portion 120 may have a ring shape when viewed from above, or may have various structures such as being spaced apart along the circumferential direction as in Patent Document 1.

[0048] Meanwhile, the upper end of the cup support portion 120 is preferably formed lower than the upper end of the container inlet 12 so that an outer cap 200 (described later) and the upper end of the container inlet 12 can be in close contact with each other.

[0049] That is, the upper end of the cup support portion 120 is positioned lower than the upper end of the container inlet 12, so that when the outer cap 200 is connected to the container inlet 12, a hermetic connection structure can be formed between the inner surface of the outer cap 200 and the upper end of the container inlet 12.

[0050] Meanwhile, the cup support portion 120 may have one or more protrusions 122, 123 that are inserted corresponding to one or more inner cap support portions 313, 312 formed on the inner surface of the container inlet 12 so as to be coupled and supported by the inner surface of the container inlet 12.

[0051] The protrusions 122, 123 are configured to be inserted into one or more inner cap support portions 313, 312 formed on the inner surface of the container inlet 12 so as to be coupled to and supported by the inner surface of the container inlet 12, and various configurations are possible.

[0052] In this case, the cup support portion 120 and the protrusions 122 and 123 may have a circular ring shape.

[0053] In addition, the protrusions 122, 123 and the inner cap support parts 313, 312 may have various configurations depending on the interconnection structure.

[0054] Here, it is needless to say that the inner cap support parts 313 and 312 may have a protrusion formed at the container inlet 12 and the recessed groove formed on the outer circumferential surface of the cup support part 120 as well.

[0055] Meanwhile, the protrusions 122 and 123 may include a first protrusion 123 formed on an upper end of the cup support part 120 .

[0056] The first protrusion 123 is formed on the upper end of the cup support portion 120 and is a portion where the upper end of the cup support portion 120 protrudes outward so as to be supported by the first cup support portion 120 formed on the inner surface of the container inlet 12, and various structures are possible.

[0057] For example, the first protrusion 123 may be a structure in which the upper end of the cup support part 120 is further protruded outward.

[0058] In this case, the inner cap support portion 313, i.e., the first inner cap support portion 313, may be a concave groove formed on the inside to correspond to the outer shape of the first protrusion portion 123, as shown in Figures 3, 4A and 4C.

[0059] Also, the first inner cap support portion 313 may be formed only by a support step 313 a that supports the lower end portion 128 of the first protrusion portion 123 .

[0060] That is, the first inner cap support portion 313 may have a support step 313 a extending from the inner peripheral surface of the container inlet 12 to the upper end of the container inlet 12 , instead of being formed by a recessed groove.

[0061] Meanwhile, the protrusions 122 and 123 may further include one or more second protrusions 122 formed at an interval below the first protrusion 123 so that the protrusions 122 and 123 can be stably supported on the container inlet 12.

[0062] The second protrusion 122 is a portion formed below the first protrusion 123 at a distance so as to be stably supported at the container inlet 12, and may have various shapes such as a ring shape.

[0063] At this time, the inner circumferential surface of the container inlet 12 may be formed with a corresponding second inner cap support portion 312 so that the second protrusion portion 122 is positioned thereon.

[0064] The second inner cap support portion 312 may be formed as a groove on the inner circumferential surface of the container inlet 12 at a position corresponding to where the second protrusion portion 122 is positioned.

[0065] Meanwhile, it is preferable that the inner cap support parts 312 and 313 are formed to be movable up and down when the cup support part 120 is coupled to the container inlet 12 as shown in FIGS. 3, 4A and 4C.

[0066] The reason for this is that when the outer cap 200 is attached to the container inlet 12, it pushes the inner cap 100 from the top to the bottom, and at this time, due to the fine up and down movement, the attaching force between the outer cap 200 and the container inlet 12 is also transmitted to the inner cap 100, thereby realizing a firm attachment state between the inner cap 100 and the outer cap 200.

[0067] Meanwhile, the lower end portion of the cup support part 120 may be formed to have a structure in which the outer diameter of the outer periphery decreases toward the lower end so that the cup support part 120 can be smoothly inserted into the container inlet 12 .

[0068] In addition, the cup support part 120 may have a step part 124 formed to reduce in thickness at a portion where the first protrusion part 123 is formed.

[0069] That is, the cup support part 120 may have an "L" shaped vertical cross section at its upper end.

[0070] Specifically, the cup support portion 120 protrudes such that the outer diameter of the upper end portion increases, and at this time, the inner peripheral surface is also formed biased outward, so that the upper end portion has a relatively thin thickness compared to the remaining portion and is expanded outward.

[0071] In this case, the outer cap 200 may have a first inner ring 241 extending downward from the bottom surface thereof, which is in close contact with the step portion 124 when the outer cap 200 is attached to the container inlet 12 so as to seal the inside of the container 10.

[0072] The first inner ring 241 is configured to closely contact the step portion 124 when the outer cap 200 is coupled to the container inlet 12 so as to seal the inside of the container 10, and may have various configurations.

[0073] The first inner ring 241 may have any structure as long as it can come into close contact with the inner circumferential surface of the step portion 124 .

[0074] In particular, the first inner ring 241 can be formed such that a lower end portion 241 b is in close contact with the inner circumferential surface of the step portion 124 and an upper portion 241 b above the lower end portion 241 b is in close contact with the inner circumferential surface of the container inlet 12 .

[0075] For this reason, the outer diameter of the lower end portion 241b can be formed to be smaller than the outer diameter of the upper portion 241b.

[0076] Due to the above-described close contact structure of the first inner ring 241, the reliability of sealing the inside of the container 10 can be improved.

[0077] The connecting bridge 130 is a component for integrally connecting the cup portion 120 and the cup support portion 120, and may have various configurations.

[0078] For example, as shown in FIGS. 6 to 10, a plurality of the connecting bridges 130 may be formed in a circumferential direction based on the horizontal center of the cup part 110, that is, the Z-axis. At this time, the connecting bridges 130 may be arranged at equal intervals along the circumferential direction.

[0079] In addition, the connecting bridge 130 may be formed in various configurations, such as two or more connecting bridges 130 spaced apart vertically as shown in FIGS. 3 to 4C, or as one connecting bridge 130 having sufficient height vertically as shown in FIG. 10.

[0080] In addition, the end surface of the connecting bridge 130 in the longitudinal direction may have various shapes such as a rectangle, an ellipse, a combination of curves and straight lines, or a circle.

[0081] Meanwhile, the connecting bridge 130 forms a gap between the outer peripheral surface of the cup portion 110 and the inner peripheral surface of the cup support portion 120, thereby forming a passage (indicated by double-sided arrows in the drawings, P in FIG. 8) through which the contents inside the container 10 can be discharged.

[0082] That is, the connecting bridge 130 may have various shapes and structures as long as it has a structure capable of forming a passage through which the contents inside the container 10 can be discharged, without being limited to the embodiment of the present invention.

[0083] The outer cap 200 is configured to be screwed onto the container inlet 12 to seal the storage space S, and may have various configurations.

[0084] As an example, the overcap 200 may include a top portion 201 defining an upper side and a sidewall portion 202 extending from the top portion 201 and coupled to the container inlet 12 .

[0085] The upper portion 201 is a portion that forms the upper side of the outer cap 200, and may be disk-shaped.

[0086] The side wall portion 202 extends from the upper portion 201 and is adapted to be coupled to the container inlet 12, and may have various configurations depending on the coupling structure with the container inlet 12.

[0087] Meanwhile, it is preferable that a sealing structure for the container inlet 12 is provided at a portion where the container inlet 12 and the outer cap 200 contact each other by coupling with the outer cap 200 .

[0088] As an example, the upper end of the container inlet 12 may have a step 340 formed on its outer peripheral surface, and the outer cap 200 may have a step contact portion 203 formed at a position corresponding to the step 340 so as to be in close contact with the step 340.

[0089] The step contact portion 203 may be formed in a shape that matches the outer shape of the step 340 .

[0090] Meanwhile, the outer cap 200 preferably seals the storage space S of the inner cap 100 in addition to the sealing coupling structure of the container inlet 12 .

[0091] As a result, the outer cap 200 can form a second inner ring 250 that is in close contact with the inner circumferential surface of the side wall 112 of the cup part 110 .

[0092] The second inner ring 250 may be extended downward from a bottom surface of the upper part 201 of the outer cap 200 so as to be in close contact with an inner circumferential surface of the side wall 112 of the cup part 110 .

[0093] In this case, a protruding ring 113 may be formed from the bottom surface 111a of the bottom portion 111 of the cup portion 110 at a distance inward from the inner peripheral surface of the side wall 112 of the cap portion 110 so as to form a first insertion groove 111b into which the lower end portion 252 of the second inner ring 250 is inserted.

[0094] The protruding ring 113 is configured to be formed from the bottom surface 111a of the bottom portion 111 of the cup portion 110 at a distance inward from the inner peripheral surface of the side wall 112 of the cap portion 110 so as to form a first insertion groove 111b into which the lower end portion 252 of the second inner ring 250 is inserted, and various configurations are possible.

[0095] In particular, the protruding ring 113 may have an inclined surface in which the outer diameter of the outer circumferential surface of the upper end portion decreases upward so that the second inner ring 250 can be smoothly inserted into the first insertion groove 111b.

[0096] In addition, as shown in FIGS. 4A and 4B, it is preferable that the first insertion groove 111b is formed such that its width decreases downward so that the lower end portion of the second inner ring 250 is in close contact with the first insertion groove 111b.

[0097] Meanwhile, an upper end portion of the side wall 112 of the cup portion 110 may have a thickness reduction portion 116 in which the thickness is reduced, and the second inner ring 250 may have a contact portion 254 to be in close contact with the inner surface of the thickness reduction portion 116.

[0098] The reduced thickness portion 116 is a portion where the thickness of the upper end portion of the side wall 112 of the cup part 110 is reduced, and may have various structures.

[0099] As an example, the side wall 112 of the cup portion 110 may extend upward from the bottom 111 of the cup portion 110 at a constant thickness, and the inner diameter of the inner circumferential surface of the upper end portion may increase, forming the thickness reduction portion 116.

[0100] Correspondingly, the second inner ring 250 may have a portion having a relatively large outer diameter corresponding to the reduced thickness portion 116, i.e., a contact portion 254, and a portion having a relatively small outer diameter below the contact portion 254.

[0101] Here, the second inner ring 250 may be formed to have a structure in which its thickness decreases toward its lower end, i.e., its terminal end.

[0102] At this time, the side wall 112 of the cup part 110 may be formed such that the inner diameter of the corresponding portion increases as the outer diameter of the second inner ring 250 decreases.

[0103] On the other hand, the adhesion portion 254 is a portion formed on the outer peripheral surface of the second inner ring 250 so as to adhere to the inner peripheral surface of the thickness reduction portion 116, and various configurations are possible depending on the adhesion structure of the thickness reduction portion 116.

[0104] Here, the second inner ring 250 may be connected to the contact portion 254 and the remaining portion at a connection portion 255 having a gentle curve, step, or the like.

[0105] In addition, the sidewall 112 of the cup part 110 may be connected to the reduced thickness part 116 and the remaining part by a connecting part 115 having a gentle curve, a step, or the like.

[0106] The outer cap 200 may have a third inner ring 260 formed at an interval outside the second inner ring 250 to form a second insertion groove 261 into which the upper end of the cup part 110 is inserted.

[0107] The third inner ring 260 is configured to extend downward from the bottom surface of the upper part 201 of the outer cap 200 at a distance from the outside of the second inner ring 250 to form a second insertion groove 261 into which the upper end of the cup part 110 is inserted, and various configurations are possible.

[0108] At this time, it is preferable that the third inner ring 260 is formed such that the inner diameter of the lower end portion increases toward the lower side so that the upper end of the cup part 110 can be stably inserted.

[0109] Meanwhile, the container cap according to the present invention is made of plastic material and is formed by injection molding.

[0110] 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 such specific embodiments, but can be appropriately modified within the scope of the claims.

Claims

1. an inner cap that is supported by a support portion formed on an inner peripheral surface of a container inlet of the container and has a storage space with an open upper side; an outer cap coupled to the container inlet and enclosing the storage space; Including a container cap.

2. The inner cap is A cup portion in which the storage space is formed; a cup support portion having an inner peripheral surface connected to the cup portion by one or more connecting bridges so as to have a gap between the inner peripheral surface and the outer peripheral surface of the cup portion, and supported by the support portion; The container cap of claim 1 , comprising:

3. 3. The container cap according to claim 2, wherein an upper end of the cup support portion is formed lower than an upper end of the container inlet.

4. The cup support portion is The container cap according to claim 2 , further comprising one or more protrusions formed on the inner circumferential surface of the container inlet, the protrusions being inserted into one or more inner cap support portions formed on the inner circumferential surface of the container inlet.

5. The container cap according to claim 4 , wherein the protrusion includes a first protrusion formed on an upper end of the cup support portion.

6. The cup support portion has a step portion formed such that the thickness is reduced at a portion where the first protrusion portion is formed, The container cap according to claim 5, wherein the outer cap has a first inner ring extending downward from a bottom surface thereof, the first inner ring being in close contact with the step portion when the outer cap is attached to the container inlet so as to seal the inside of the container.

7. The container cap according to claim 4 , wherein the protrusion further comprises one or more second protrusions formed below the first protrusion at a distance therefrom.

8. 5. The container cap according to claim 4, wherein the cup support portion and the protrusion portion are ring-shaped.

9. The container cap according to claim 2 , wherein the connecting bridge is formed in a plurality of parts in a circumferential direction based on a horizontal center of the cup portion.

10. The container cap according to claim 2 , wherein the connecting bridge is formed in a plurality of parts in the vertical direction.

11. The outer cap is 3. The container cap according to claim 2, further comprising a second inner ring that is in intimate contact with an inner peripheral surface of the side wall of the cup portion.

12. The cup portion is The container cap of claim 11, wherein a protruding ring is formed from the bottom surface of the bottom of the cup portion at a distance inward from the inner peripheral surface of the side wall of the cap portion to form a first insertion groove into which the lower end of the second inner ring is inserted.

13. The upper end portion of the side wall of the cup portion is formed with a thickness reduction portion, the thickness of which is reduced. The container cap according to claim 11, wherein the second inner ring has a contact portion formed to contact an inner circumferential surface of the reduced thickness portion.

14. The outer cap is The container cap according to claim 11, further comprising a third inner ring spaced apart from the outer side of the second inner ring to define a second insertion groove into which the upper end of the cup portion is inserted.

15. A container having a container inlet formed therein; a container cap coupled to the container inlet; Including, A container having a container cap attached thereto, characterized in that the container cap is the container cap according to any one of claims 1 to 14.

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