Container cap and container assembly coupled thereto

Abstract

The present invention relates to a container cap and a container assembly coupled thereto, and more specifically, to a container cap coupled to a container inlet for containing contents and a container assembly (Vessel cap and vessel coupled with the same) coupled thereto. As shown in FIG. 2, the present invention includes a container 20 having a container inlet 21 for containing contents and discharging the contents, a container cap 1 coupled to the container inlet 21, and a seal member 7 attached to the upper end of the container inlet 21 for sealing the container 20. The container cap 1 includes a side wall portion 2 having an internal thread portion 2a threadedly coupled to an external thread portion 8 formed on the outer peripheral surface of the container inlet 21, an upper portion 3 integrally formed at the upper end of the side wall portion 2, and a contact portion 6 protruding at a distance from the inner peripheral surface of the side wall portion 2 to the bottom surface of the upper portion 3 and formed to be in close contact with the container inlet 21 even after the seal member 7 is removed. A container assembly characterized by including the above is disclosed.

Description

Technical Field

[0001] The present invention relates to a vessel cap and a vessel assembly coupled thereto, and more particularly, to a vessel cap coupled to a vessel inlet for containing contents and a vessel assembly (Vessel cap and vessel coupled with the same) coupled thereto.

Background Art

[0002] FIG. 1 is a cross-sectional view of a conventional vessel. Generally, in a beverage water container such as a lactic acid bacteria beverage, in order to prevent the contents stored in the container 104 from flowing out without permission to the outside, which is attached to the container inlet 102, a seal member 114 for sealing the contents stored in the container 104 is attached to the container inlet 102, and a vessel cap 100 is put on to prevent the seal member 114 from being damaged without permission due to an external impact or contact between objects.

[0003] The vessel cap 100 has a cylindrical shape with the upper side sealed, and locking protrusions 110 that are locked to locking ribs 108 formed on the outer peripheral surface of the container inlet 102 are formed on the inner peripheral surface thereof, and a knob 112 for pulling by hand when separating the vessel cap 100 from the container inlet 102 is formed.

[0004] In such a vessel cap 100, after grasping and pulling the knob 112 to separate the vessel cap 100 from the container inlet 102, the seal member 114 is removed from the container inlet 102, and the contents in the container are discharged to the outside through the container inlet 102.

[0005] On the other hand, in a container for storing beverages, drugs, etc., according to the convenience of the user, after the seal member 114 is removed, instead of drinking all the contents, the vessel cap 100 can be re-coupled and used to drink a certain amount and then drink again later.

[0006] Particularly in the case of a drug in tablet form, the container can be used for more than one month depending on the amount of the contents.

[0007] However, the conventional container has a problem that, even after the removal of the seal member 114 and regardless of the reconnection of the container cap and the container, the sealing performance deteriorates, and the contents contained inside the container may deteriorate or leak out.

Summary of the Invention

Problems to be Solved by the Invention

[0008] An object of the present invention is to provide a container cap and a container assembly coupled thereto that can improve the sealing performance when the container cap is reconnected even after the removal of the seal member in order to solve the above problems.

Means for Solving the Problems

[0009] The present invention was created to achieve the object of the present invention as described above. The present invention includes a container having a container inlet into which contents are placed and from which the contents are discharged, a container cap coupled to the container inlet, and a seal member attached to the upper end of the container inlet for sealing the container. The container cap includes a side wall portion having an internal thread portion that is threadedly coupled to an external thread portion formed on the outer peripheral surface of the container inlet, an upper side portion integrally formed at the upper end of the side wall portion, and a contact portion that protrudes at a distance from the inner peripheral surface of the side wall portion to the bottom surface of the upper side portion and is formed to be in close contact with the container inlet even after the removal of the seal member. A container assembly is disclosed, characterized by including these components.

[0010] The present invention also includes a container having a container inlet for containing and discharging contents, and a container cap coupled to the container inlet. The container cap includes a side wall portion having an internal thread portion threadedly coupled to an external thread portion formed on an outer peripheral surface of the container inlet, an upper portion integrally formed at an upper end of the side wall portion, and a contact portion protruding at a distance from an inner peripheral surface of the side wall portion to a bottom surface of the upper portion and formed to be in contact with the container inlet. A container assembly is disclosed, characterized by including these components.

[0011] The outer diameter of the sealing member is formed to be smaller than the outer diameter of the upper surface of the container inlet, and the upper surface of the container inlet may be covered by the sealing member and the contact portion.

[0012] A contact ring may be further formed on the bottom surface of the contact portion, protruding downward and being in contact with the outer peripheral surface of the container inlet when the container cap is coupled to the container inlet.

[0013] The container inlet may further be formed with an annular protrusion protruding toward the contact ring so as to be in contact with the contact ring when the container cap is coupled to the container inlet.

[0014] The upper surface of the container inlet may be composed of at least one of a flat surface and a curved surface.

[0015] The side wall portion may further be formed with an auxiliary contact portion that is in contact with the outer peripheral surface of the container inlet at its lower end when the container cap is coupled to the container inlet.

[0016] The side wall portion may be connected by a plurality of bridges to a skirt portion that is locked to a locking protrusion formed on the outer peripheral surface of the container inlet at its lower end when the container cap is coupled to the container inlet.

Advantages of the Invention

[0017] The container cap and the container assembly coupled thereto according to the present invention have an advantage that, by providing a contact portion that is in close contact with the upper surface of the container inlet, the sealing performance can be greatly improved when the container cap is coupled to the container inlet after the removal of the sealing member.

[0018] The container cap and the container assembly coupled thereto according to the present invention have an advantage that, by improving the sealing performance with respect to the container, the contents can be safely stored without being deteriorated for a long period of time despite the opening and re-coupling of the container cap.

[0019] In addition, the container cap and the container assembly coupled thereto according to the present invention can be manufactured without changing the existing standard of the container cap, that is, the external dimensions, and the existing production line can be utilized, and there is an advantage that no additional cost is incurred when applying the container cap and the container assembly coupled thereto according to the present invention.

[0020] In addition, the container cap and the container assembly coupled thereto according to the present invention have an advantage that, since the contact portion is formed at a distance from the bottom surface of the upper side portion of the container cap, when the container cap is coupled to the container inlet, the sealing performance can be greatly improved by the bending elasticity when the container cap is coupled to the container inlet.

[0021] In addition, the container cap and the container assembly coupled thereto according to the present invention have an advantage that, by further forming a sealing ring that is in close contact with the outer peripheral surface of the container inlet on the bottom surface of the contact portion, the sealing performance can be greatly improved when the container cap is coupled to the container inlet.

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, the container cap according to the present invention and the container assembly coupled thereto will be described with reference to the accompanying drawings.

[0024] As shown in FIGS. 1 to 8, the container assembly according to the present invention includes a container 20 having a container inlet 21 into which contents are placed and from which the contents are discharged, a container cap 1 coupled to the container inlet 21, and a seal member 7 attached to the upper end of the container inlet 21 for sealing the container 20.

[0025] The container 20 is configured such that contents such as liquid substances such as beverages, alcoholic beverages, engine oil, antifreeze, edible oil, dairy products, and granular and powdery substances such as tablets (tablets) can be placed in the storage space 28, and any configuration is possible as long as it has a container inlet 21 for discharging the container.

[0026] In addition, the portion of the container 20 excluding the container inlet 21 can have various shapes such as a cylindrical shape and a prismatic shape.

[0027] In addition, the container 20 can be made of various materials such as plastic materials, ceramic materials such as ceramics, glass materials, metal materials, and the like. Here, the container cap preferably has a plastic material in consideration of manufacturing and breakage separation.

[0028] On the one hand, the container inlet 21 is an outlet through which the contents that have entered the storage space 28 of the container 20 are discharged to the outside. It is a part that is opened and closed by opening and closing the container cap 100, and it may have various structures depending on the coupling structure with the container cap 20.

[0029] The container cap 1 is made of a plastic material and is configured to be coupled to the container inlet 21 of the container 20 to seal the container 20, and various configurations are possible.

[0030] The material of the container cap 1 can be any plastic material that can be injection-molded, such as HDPE, PP, PET, PVC, PS, etc., and any configuration is possible.

[0031] The seal member 7 is attached to the upper end of the container inlet 21 of the container 20 to seal the container 20, and various configurations are possible depending on the coupling structure of the container cap 1.

[0032] As an example, the seal member 7 can include a metal sheet layer (not shown), a first resin layer and a second resin layer respectively bonded to the upper surface and the bottom surface of the metal sheet layer.

[0033] Also, an adhesive layer can be formed at a position on the bottom surface of the second resin layer corresponding to the upper surface 22 of the container inlet 21 so as to adhere to the upper surface 22 of the container inlet 21 by a heating method such as induction (inductive heating) or conduction.

[0034] On the other hand, the container cap 1 includes a side wall portion 2 having an internal thread portion 2a formed on the inner peripheral surface thereof that is threadedly coupled to an external thread portion 8 formed on the outer peripheral surface of the container inlet 21, an upper portion 3 integrally formed at the upper end of the side wall portion 2, and a close contact portion 6 protruding from the inner peripheral surface of the side wall portion 2 at an interval from the bottom surface of the upper portion 3 and formed to closely contact the container inlet 21 even after the seal member 7 is removed.

[0035] The side wall portion 2 is configured such that an internal thread portion 2a that is screwed together with an external thread portion 8 formed on the outer peripheral surface of the container inlet 21 is formed on the inner peripheral surface, and various configurations are possible depending on the coupling structure with the container inlet 21.

[0036] The side wall portion 2 may have any structure as long as it is integrally formed with the upper portion 3 described later to form the container cap 1 and can be screwed to the container inlet 21.

[0037] On the other hand, in a state where the container cap 1 is coupled to the container inlet 21, an auxiliary close contact portion 12 that closely contacts the outer peripheral surface of the container inlet 21 may be further formed at the lower end portion of the side wall portion 2.

[0038] The auxiliary close contact portion 12 is configured to be formed at the lower end of the side wall portion 2 so as to closely contact the outer peripheral surface of the container inlet 21 in a state where the container cap 1 is coupled to the container inlet 21, and various configurations are possible.

[0039] In particular, as shown in FIGS. 5 and 6, the auxiliary close contact portion 12 may be formed to protrude from the lower end of the side wall portion 2.

[0040] As an example, when the auxiliary close contact portion 12 closely contacts the outer peripheral surface of the container inlet 21, it may have a shape in which the thickness in the radial direction decreases toward the lower end portion, for example, a wedge end face shape, in order to apply an elastic force such as warping.

[0041] At this time, on the outer peripheral surface of the container inlet 21, a close contact portion 35 that closely contacts the auxiliary close contact portion 12 may be formed in a diagonal line shape or the like in a state where the container cap 1 is coupled to the container inlet 21.

[0042] In a state where the container cap 1 is coupled to the container inlet 21, the auxiliary close contact portion 12 closely contacts the outer peripheral surface of the container inlet 21, thereby providing a second sealed portion for sealing the container 20.

[0043] On the one hand, in a state where the container cap 1 is coupled to the container inlet 21, the skirt portion 5 that is locked to the locking projection 24 formed on the outer peripheral surface of the container inlet 21 at the lower end thereof can be connected by a plurality of bridges 4 in the side wall portion 2.

[0044] The skirt portion 5 is a portion that remains in a state of being coupled to the container inlet 21 with the bridge 4 broken when the container cap 1 is separated from the container inlet 21, and can be used for purposes such as checking the presence or absence of the first opening.

[0045] On the other hand, as shown in FIGS. 5 and 6, the auxiliary adhesion portion 12 can be located on at least one of the inner side and the outer side with the skirt portion 5 as the center.

[0046] At this time, the container cap 1 can extend downward from the upper portion 3 described later and further form an outer side wall portion 9 at an interval from the outer peripheral surface of the side wall portion 2.

[0047] Further, the skirt portion 5 can be formed on either one of the side wall portion 2 and the outer side wall portion 9, and the auxiliary adhesion portion 12 can be formed on either one of the side wall portion 2 and the outer side wall portion 9.

[0048] Further, both the skirt portion 5 and the auxiliary adhesion portion 12 can also be formed on either one of the side wall portion 2 and the outer side wall portion 9.

[0049] On the one hand, the side wall portion 2 can form a plurality of plate portions 15 on the outer peripheral surface so that a user can easily rotate the container cap 2 by gripping it.

[0050] The plate portion 15 can be formed by a protruding portion that is vertically long on the outer peripheral surface of the side wall portion 2. As long as the structure allows a user to easily rotate the container cap 2 with respect to the container inlet 21, any structure is possible.

[0051] The upper part 3 is a part integrally formed at the upper end of the side wall part 2 and can have various shapes, such as a shape corresponding to the shape of the container inlet 21, that is, a disk shape.

[0052] As shown in FIGS. 3 and 4, the contact part 6 is configured to protrude from the inner peripheral surface of the side wall part 2 with a gap from the bottom surface of the upper part 3 and to be in close contact with the container inlet 21 even after the seal member 7 is removed, and various configurations are possible.

[0053] As an example, the contact part 6 can be formed in a ring shape protruding from the outer peripheral surface of the side wall part 2 with a gap from the bottom surface of the upper part 3 so as to form an elastic space 17 with the upper part 3.

[0054] In particular, when the seal member 7 is removed and the user rotates the container cap 1 to firmly couple it to the container inlet 21, the contact part 6 is in close contact with the upper surface 22 of the container inlet 21, and due to the bending elasticity into the elastic space 17, the container cap 21 can be more firmly coupled to the container inlet 21.

[0055] Furthermore, due to the strong close contact between the contact part 6 and the upper surface 22 of the container inlet 21, the sealing performance with respect to the inside of the container 20 can be significantly improved.

[0056] On the other hand, as shown in FIG. 4, it is preferable that the contact part 6 is formed so as to be in close contact with the upper surface 22 of the container inlet 21 even when the seal member 7 is provided.

[0057] At this time, in relation to the formation of the contact ring 11 described later, the outer diameter of the seal member 7 can be formed smaller than the outer diameter of the upper surface 22 of the container inlet 21, and at this time, the upper surface 22 of the container inlet 21 may be covered by the seal member 7 and the contact part 6.

[0058] Also, the upper surface 22 of the container inlet 21 is a part where the seal member 7 is adhered and the contact part 6 is in close contact, and can be composed of at least one of a flat surface and a curved surface.

[0059] On the other hand, in order to enhance the sealing performance of the container 20 by the container cap 1, as shown in FIG. 7, one or more end portions 32 can be formed on the outer peripheral side of the upper surface 22 of the container inlet 21.

[0060] One or more of the end portions 32 can be formed on the outer peripheral side of the upper surface 22 of the container inlet 21. At this time, when the container cap 1 is coupled to the container inlet 21, a coupling end portion 34 that couples to the end portion 32 is formed, so that further sealing performance for the container 20 can be provided.

[0061] In particular, as shown in FIG. 8, excluding the configuration of the contact portion 6, the sealing performance can be provided only by the contact ring 11 and the end portion 32. Of course, the container assembly can be configured only by the contact ring 11 and the end portion 32, excluding the configuration of the contact portion 6.

[0062] On the other hand, a contact ring 11 that protrudes downward and contacts the outer peripheral surface of the container inlet 21 when the container cap 1 is coupled to the container inlet 21 can be further formed on the bottom surface of the contact portion 6.

[0063] The contact ring 11 is configured to protrude downward from the bottom surface of the contact portion 6 so as to contact the outer peripheral surface of the container inlet 21 when the container cap 1 is coupled to the container inlet 21. By contacting the outer peripheral surface of the container inlet 21, further sealing performance for the container 20 can be provided.

[0064] As an example, the contact ring 11 can be formed such that the radial thickness decreases as it goes downward, such as in a wedge shape.

[0065] At this time, as shown in FIGS. 4 and 5, the contact ring 11 can be formed at a distance from the inner peripheral surface of the side wall portion 2.

[0066] The contact ring 11 is formed by extending from the bottom surface of the contact portion 6. When the container cap 1 is coupled to the container inlet 21, when the contact portion 6 bends, it bends together to the outer peripheral surface side of the container inlet 21 and adheres to the outer peripheral surface of the container inlet 21, further providing sealing performance with respect to the container 20.

[0067] On the other hand, the contact ring 11 can also be formed by extending downward from the upper side portion 3 of the container cap 1.

[0068] That is, the contact ring 11 can be formed to be located outside the elastic space 17 formed by the contact portion 6 with reference to the radial direction of the container cap 1.

[0069] On the other hand, the container inlet 21 can form one or more annular protrusions 33 protruding toward the contact ring 11 so as to be in contact with the contact ring 11 in a state where the container cap 1 is coupled to the container inlet 21.

[0070] The annular protrusion 33 is an annular protrusion formed on the container inlet 21 toward the contact ring 11 so as to be in contact with the contact ring 11 in a state where the container cap 1 is coupled to the container inlet 21, and can have various shapes and structures.

[0071] Here, the annular protrusion 33 is formed above the male screw portion 8 formed on the outer peripheral surface of the container inlet 21.

[0072] On the other hand, although the container assembly according to the present invention has been described with the seal member 7 as an essential component, it goes without saying that it can be used without the seal member 7 in order to provide sufficient sealing performance without installing the seal member 7.

[0073] At this time, the contact portion 6 can be in contact with the entire upper surface 22 of the container inlet 21.

[0074] That is, as a second embodiment of the present invention, the container assembly according to the present invention includes a container 20 having a container inlet 21 into which contents are put and from which the contents are discharged, and a container cap 1 coupled to the container inlet 21. The container cap 1 includes a side wall portion 2 having an internal thread portion 2a threadedly coupled to an external thread portion 8 formed on the outer peripheral surface of the container inlet 21, an upper portion 3 integrally formed at the upper end of the side wall portion 2, and a contact portion 6 protruding from the inner peripheral surface of the side wall portion 2 at an interval from the bottom surface of the upper portion 3 and formed to be in contact with the container inlet 21.

[0075] Since the container assembly according to the second embodiment of the present invention has substantially the same configuration except for the seal member 7, a detailed description thereof will be omitted.

[0076] On the other hand, the container assembly according to the embodiment of the present invention can be used by combining variously structured container caps, for example, a one-piece one-touch cap, a two-piece one-touch cap, a glass material cap, a metal material cap, etc. and the containers to which they are coupled, when used by combining various bottle caps and various containers installed independently, and when applying or using part or all of the bottle caps, containers, other instruments, machines, and other structures to other instruments, machines, and other structures.

[0077] The above description is only a part of a preferred embodiment that can be embodied by the present invention. As is well known, the scope of the present invention should not be construed as being limited to the above-described embodiment, and all of the technical ideas described above and the technical ideas forming the basis thereof are included in the scope of the present invention.

Claims

1. A container having an inlet for containing and discharging contents, a container cap coupled to the container inlet, and a seal member attached to the upper end of the container inlet to seal the container, comprising: The container cap has a side wall portion with an internal thread portion formed on its inner peripheral surface for threadedly engaging an external thread portion formed on the outer peripheral surface of the container inlet, an upper portion integrally formed at the upper end of the side wall portion, and a contact portion protruding at a distance from the inner peripheral surface of the side wall portion to the bottom surface of the upper portion and configured to be in close contact with the container inlet even after removal of the seal member. A container assembly, characterized by comprising the above.

2. The outer diameter of the seal member is formed smaller than the outer diameter of the upper surface of the container inlet, and the upper surface of the container inlet is covered by the seal member and the contact portion. The container assembly according to claim 1, characterized by this.

3. A container having an inlet for containing and discharging contents, a container cap coupled to the container inlet, comprising: The container cap has a side wall portion with an internal thread portion formed on its inner peripheral surface for threadedly engaging an external thread portion formed on the outer peripheral surface of the container inlet, an upper portion integrally formed at the upper end of the side wall portion, and a contact portion protruding at a distance from the inner peripheral surface of the side wall portion to the bottom surface of the upper portion and configured to be in close contact with the container inlet. A container assembly, characterized by comprising the above.

4. The container assembly according to any one of claims 1 to 3, characterized in that a contact ring protruding downward is further formed on the bottom surface of the contact portion and is in close contact with the outer peripheral surface of the container inlet when the container cap is coupled to the container inlet.

5. The container assembly according to claim 4, characterized in that an annular protruding portion protruding toward the contact ring is further formed on the container inlet so as to be in close contact with the contact ring when the container cap is coupled to the container inlet.

6. The container assembly according to any one of claims 1 to 3, characterized in that the upper surface of the container inlet is composed of at least one of a flat surface and a curved surface.

7. The container assembly according to any one of claims 1 to 3, characterized in that an auxiliary contact portion that is in close contact with the outer peripheral surface of the container inlet is further formed at the lower end portion of the side wall portion when the container cap is coupled to the container inlet.

8. The side wall portion The container assembly according to any one of claims 1 to 3, characterized in that, in a state where the container cap is coupled to the container inlet, a skirt portion that is locked to a locking projection formed on the outer peripheral surface of the container inlet at its lower end is connected by a plurality of bridges.

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