Container cap and container assembly attached 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 an inlet of a vessel for containing contents and a vessel assembly coupled thereto (Vessel cap and vessel coupled with the same).

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 through 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 accidentally damaged by an external impact or contact between objects.

[0003] The vessel cap 100 has a cylindrical shape with an upper side sealed, and on its inner peripheral surface, a locking projection 110 that is locked to a locking rib 108 formed on the outer peripheral surface of the container inlet is formed, 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] In particular, for medications in tablet form, the container can be used for more than one month, depending on the amount of contents.

[0007] However, conventional containers have a problem in that, even after removing the sealing member 114 and reattaching the container cap and container, the airtightness weakens, which can cause the contents inside the container to deteriorate or leak out. [Overview of the project] [Problems that the invention aims to solve]

[0008] The object of the present invention is to provide a container cap and a container assembly coupled thereto that can improve airtightness when the container cap is reattached even after the sealing member has been removed, in order to solve the above-mentioned problems. [Means for solving the problem]

[0009] The present invention was created to achieve the above-mentioned objectives of the present invention, and discloses a container assembly comprising: a container having a container opening into which contents are placed and from which contents are discharged; a container cap coupled to the container opening; and a sealing member attached to the upper end of the container opening to seal the container, wherein the container cap comprises: a side wall portion having a female screw portion formed on its inner surface that is screw-coupled to a male screw portion formed on the outer circumferential surface of the container opening; an upper portion integrally formed at the upper end of the side wall portion; and a contact portion that protrudes from the inner circumferential surface of the side wall portion at a distance from the bottom surface of the upper portion, and is formed to remain in close contact with the container opening even after the sealing member is removed.

[0010] The present invention also discloses a container assembly comprising a container having a container opening into which contents are placed and from which contents are discharged, and a container cap coupled to the container opening, wherein the container cap includes a side wall portion having a female screw portion formed on its inner surface that is screw-coupled to a male screw portion formed on the outer surface of the container opening, an upper portion integrally formed at the upper end of the side wall portion, and a contact portion that protrudes from the inner surface of the side wall portion at a distance from the bottom surface of the upper portion and is formed to be in close contact with the container opening.

[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 sealing portion.

[0012] A contact ring may be further formed on the bottom surface of the contact portion, which protrudes downward and, when the container cap is coupled to the container inlet, makes close contact with the outer circumferential surface of the container inlet.

[0013] The container opening may further have an annular projection that protrudes toward the sealing ring so that the container cap is in close contact with the sealing ring when it is coupled to the container opening.

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

[0015] The side wall portion may have an auxiliary contact portion formed at its lower end that adheres closely to the outer surface of the container opening when the container cap is connected to the container opening.

[0016] The side wall portion may have a skirt portion connected by multiple bridges at its lower end, which engages with a locking projection formed on the outer circumferential surface of the container inlet when the container cap is connected to the container inlet. [Effects of the Invention]

[0017] The container cap and container assembly coupled thereto according to the present invention have the advantage of significantly improving airtightness when the container cap is coupled to the container inlet after the sealing member has been removed, by providing a contact portion that is in close contact with the upper surface of the container inlet.

[0018] The container cap and container assembly coupled thereto according to the present invention have the advantage of being able to safely store the contents for a long period of time without deterioration, even after the container cap is opened and reattached, due to improved airtightness to the container.

[0019] Furthermore, the container cap and container assembly coupled thereto according to the present invention can be manufactured without changing the existing standards of the container cap, i.e., the external dimensions, and can be utilized on existing production lines. This has the advantage of not incurring additional costs when applying the container cap and container assembly coupled thereto according to the present invention.

[0020] Furthermore, the container cap and the container assembly coupled thereto have the advantage that, because the contact portion is formed with a gap between the bottom surface of the upper part of the container cap, the sealing performance can be greatly improved when the container cap is coupled to the container inlet due to bending elasticity.

[0021] Furthermore, the container cap and container assembly coupled thereto have the advantage that, by further forming a sealing ring on the bottom surface of the contact portion that adheres to the outer surface of the container inlet, the sealing performance can be greatly improved when the container cap is coupled to the container inlet. [Brief explanation of the drawing]

[0022] [Figure 1] This is a cross-sectional view showing an example of a conventional container assembly. [Figure 2] This is a perspective view showing a container assembly according to one embodiment of the present invention. [Figure 3] Figure 2 shows a cross-sectional view of the container assembly in the III-III direction. [Figure 4] In FIG. 3, it is an enlarged cross-sectional view of the enlarged A portion. [Figure 5] In FIG. 3, it is an enlarged cross-sectional view of the enlarged B portion. [Figure 6] It is an enlarged cross-sectional view showing a modified example of the structure shown in FIG. 5. [Figure 7] It is an enlarged cross-sectional view showing a modified example of the structure shown in FIG. 4. [Figure 8] It is an enlarged cross-sectional view showing another modified example of the structure shown in FIG. 4.

Mode for Carrying Out 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 and sealing the container 20.

[0025] The container 20 is configured such that contents such as liquid substances such as beverages, liquors, engine oil, antifreeze, edible oil, dairy products, and granular or powdery substances such as tablets (tablets) are 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 or a prismatic shape.

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

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

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

[0030] The material of the container cap 1 can be any injection-molded plastic material such as HDPE, PP, PET, PVC, or PS.

[0031] The sealing 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 sealing member 7 may include a metal sheet layer (not shown) and a first resin layer and a second resin layer bonded to the upper and lower surfaces of the metal sheet layer, respectively.

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

[0034] On the other hand, the container cap 1 may include a side wall portion 2 having a female screw portion 2a formed on its inner surface that is screw-connected to a male screw portion 8 formed on the outer 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 that protrudes from the inner surface of the side wall portion 2 at a distance from the bottom surface of the upper portion 3 and is formed to remain in close contact with the container inlet 21 even after the sealing member 7 is removed.

[0035] The side wall portion 2 has a female screw portion 2a formed on its inner surface that is screw-connected to a male screw portion 8 formed on the outer surface of the container inlet 21, and various configurations are possible depending on the connection structure with the container inlet 21.

[0036] The side wall portion 2 is formed integrally with the upper portion 3, which will be described later, to form the container cap 1, and any structure is possible as long as it can be screw-connected to the container inlet 21.

[0037] On the other hand, the side wall portion 2 may have an auxiliary contact portion 12 formed at its lower end, which adheres closely to the outer circumferential surface of the container inlet 21 when the container cap 1 is connected to the container inlet 21.

[0038] The auxiliary sealing portion 12 is formed at the lower end of the side wall portion 2 so as to be in close contact with the outer circumferential surface of the container inlet 21 when the container cap 1 is connected to the container inlet 21, and various configurations are possible.

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

[0040] As an example, the auxiliary contact portion 12 may have a shape in which the radial thickness decreases towards the lower end, for example, a wedge-shaped end face, in order to apply an elastic force such as warping when it comes into contact with the outer circumferential surface of the container inlet 21.

[0041] At this time, on the outer surface of the container inlet 21, a contact portion 35 can be formed in the shape of a diagonal line or the like, which will be in close contact with the auxiliary contact portion 12 while the container cap 1 is connected to the container inlet 21.

[0042] With the container cap 1 connected to the container inlet 21, the auxiliary sealing portion 12 adheres tightly to the outer circumferential surface of the container inlet 21, thereby providing a second sealing portion that seals the container 20.

[0043] On the other hand, the side wall portion 2 can be connected by a plurality of bridges 4 to a skirt portion 5 at its lower end, which is locked to a locking projection 24 formed on the outer circumferential surface of the container inlet 21, while the container cap 1 is connected to the container inlet 21.

[0044] The skirt portion 5 is the part that remains connected to the container inlet 21 when the container cap 1 is separated from the container inlet 21, after the bridge 4 has broken, and can be used to check whether or not it has been opened for the first time.

[0045] On the other hand, the auxiliary contact portion 12 can be located on at least one of the inner and outer sides of the skirt portion 5, as shown in Figures 5 and 6.

[0046] In this case, the container cap 1 can further form an outer wall portion 9 extending downward from the upper portion 3, which will be described later, and spaced apart from the outer circumferential surface of the side wall portion 2.

[0047] Furthermore, the skirt portion 5 is formed on either the side wall portion 2 or the outer wall portion 9, and the auxiliary contact portion 12 can be formed on either the side wall portion 2 or the outer wall portion 9.

[0048] Furthermore, both the skirt portion 5 and the auxiliary contact portion 12 can be formed on either the side wall portion 2 or the outer wall portion 9.

[0049] On the other hand, the side wall portion 2 can have multiple plate portions 15 formed on its outer circumferential surface so that the user can easily grip and rotate the container cap 2.

[0050] The plate portion 15 can be any structure that allows the user to easily rotate the container cap 2 relative to the container opening 21, such as being formed as a vertically elongated protruding portion on the outer circumferential surface of the side wall portion 2.

[0051] The upper portion 3 is a part integrally formed with the upper end of the side wall portion 2, and can have various shapes, such as a disc shape, which corresponds to the shape of the container inlet 21.

[0052] As shown in Figures 3 and 4, the contact portion 6 protrudes from the inner circumferential surface of the side wall portion 2 at a distance from the bottom surface of the upper portion 3, and is formed to remain in close contact with the container inlet 21 even after the sealing member 7 is removed, and various configurations are possible.

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

[0054] In particular, when the sealing member 7 is removed, the contact portion 6 adheres tightly to the upper surface 22 of the container opening 21 when the user rotates the container cap 1 to firmly connect it to the container opening 21, and the bending elasticity of the elastic space 17 allows the container cap 21 to be more firmly connected to the container opening 21.

[0055] Furthermore, the strong adhesion between the contact portion 6 and the upper surface 22 of the container inlet 21 significantly improves the airtightness of the container 20.

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

[0057] In this case, in relation to the formation of the contact ring 11 described later, the outer diameter of the sealing member 7 can be made smaller than the outer diameter of the upper surface 22 of the container inlet 21, and in this case, the upper surface 22 of the container inlet 21 may be covered by the sealing member 7 and the contact portion 6.

[0058] Furthermore, the upper surface 22 of the container inlet 21 is the part to which the sealing member 7 is adhered and the contact portion 6 is in close contact, and can consist of at least one of a flat surface and a curved surface.

[0059] On the other hand, the upper surface 22 of the container inlet 21 can have one or more end portions 32 formed on its outer circumference, as shown in Figure 7, in order to improve the airtightness of the container 20 by the container cap 1.

[0060] The end portion 32 can be formed on the outer circumference of the upper surface 22 of the container inlet 21, and in this case, the container cap 1 can be further sealed to the container 20 when the container cap 21 is connected to the container inlet 21 by forming a connecting end portion 34 that connects to the end portion 32.

[0061] In particular, as shown in Figure 8, sealing performance can be provided by the sealing ring 11 and the end portion 32 alone, excluding the configuration of the sealing portion 6, and of course, the container assembly can be constructed by the sealing ring 11 and the end portion 32 alone, excluding the configuration of the sealing portion 6.

[0062] On the other hand, a contact ring 11 can be further formed on the bottom surface of the contact portion 6, which protrudes downward and comes into close contact with the outer circumferential surface of the container inlet 21 when the container cap 1 is connected to the container inlet 21.

[0063] The contact ring 11 is formed to protrude downward from the bottom surface of the contact portion 6 so as to be in close contact with the outer circumferential surface of the container inlet 21 when the container cap 1 is coupled to the container inlet 21, and by being in close contact with the outer circumferential surface of the container inlet 21, it can provide even greater sealing to the container 20.

[0064] As an example, the contact ring 11 can be formed in a wedge shape or similar, such that its radial thickness decreases towards the bottom.

[0065] In this case, the contact ring 11 can be formed with a gap between it and the inner circumferential surface of the side wall portion 2, as shown in Figures 4 and 5.

[0066] The contact ring 11 is formed extending from the bottom surface of the contact portion 6. When the container cap 1 is coupled to the container inlet 21, the contact portion 6 bends, and the contact ring 11 bends together with the outer surface of the container inlet 21, making close contact with the outer surface of the container inlet 21 and further providing a tight seal to the container 20.

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

[0068] In other words, the contact ring 11 can be formed 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 have one or more annular protrusions 33 that protrude toward the contact ring 11 so that the container cap 1 is in close contact with the contact ring 11 when it is connected to the container inlet 21.

[0070] The annular projection 33 is an annular projection formed on the container inlet 21 toward the contact ring 11 so that the container cap 1 is in close contact with the contact ring 11 when it is coupled to the container inlet 21, and can have various shapes and structures.

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

[0072] On the other hand, although the container assembly according to the present invention has been described as having a sealing member 7 as an essential component, it can be used without the sealing member 7 because it provides sufficient airtightness even without the sealing member 7.

[0073] At this time, the contact portion 6 can be in close 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 placed and into which contents are discharged, and a container cap 1 coupled to the container inlet 21, wherein the container cap 1 includes a side wall portion 2 having a female screw portion 2a formed on its inner surface that is screw-connected to a male screw portion 8 formed on the outer 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 that protrudes from the inner surface of the side wall portion 2 at a distance from the bottom surface of the upper portion 3 and is formed to be in close 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 sealing member 7, a detailed description will be omitted.

[0076] On the other hand, the container assembly according to the embodiment of the present invention can be used by combining various container caps of different structures, such as one-piece one-touch caps, two-piece one-touch caps, glass caps, metal caps, etc., and containers to which they are attached, with each other, or by independently installing them on various bottle caps and various containers, or by applying or adapting some or all of the bottle caps and containers to other instruments, machinery, and other structures.

[0077] The above has only described 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 interpreted as being limited to the above-mentioned embodiment, and all of the technical ideas of the present invention and the fundamental technical ideas that form its core are included within the scope of the present invention.

Claims

1. A container having an opening into which contents are placed and from which contents are discharged, A container cap that is connected to the container inlet, A sealing member attached to the upper end of the container opening and sealing the container, Includes, The aforementioned container cap is A male threaded portion formed on the outer circumferential surface of the container inlet and a female threaded portion formed on the inner circumferential surface that are screw-connected to each other are formed on the side wall portion, An upper portion integrally formed at the upper end of the aforementioned side wall portion, A contact portion is formed to protrude from the inner circumferential surface of the side wall portion at a distance from the bottom surface of the upper portion, and to remain in close contact with the container opening even after the sealing member is removed. Includes, The outer diameter of the sealing member is formed to be smaller than the outer diameter of the upper surface of the container inlet. The upper surface of the container inlet is covered by the sealing member and the sealing portion. A container assembly characterized by the following features.

2. A container having an opening into which contents are placed and from which contents are discharged, A container cap that is connected to the container inlet, Includes, The aforementioned container cap is A male threaded portion formed on the outer circumferential surface of the container inlet and a female threaded portion formed on the inner circumferential surface that are screw-connected to each other are formed on the side wall portion, An upper portion integrally formed at the upper end of the aforementioned side wall portion, A contact portion is formed to protrude from the inner circumferential surface of the side wall portion at a distance from the bottom surface of the upper portion, and to be in close contact with the container opening, Includes, A sealing ring is further formed on the bottom surface of the sealing portion, which protrudes downward and, when the container cap is coupled to the container inlet, adheres tightly to the outer circumferential surface of the container inlet. The container opening is further formed with an annular projection that protrudes toward the sealing ring so that the container cap is in close contact with the sealing ring when it is coupled to the container opening. A container assembly characterized by the following features.

3. The container assembly according to claim 1, further characterized in that a contact ring is formed on the bottom surface of the contact portion, which protrudes downward and comes into close contact with the outer circumferential surface of the container inlet when the container cap is coupled to the container inlet.

4. The container assembly according to claim 3, characterized in that the container inlet has an annular projection that protrudes toward the sealing ring so that the container cap is in close contact with the sealing ring when it is coupled to the container inlet.

5. The container assembly according to any one of claims 1, 2, or 4, characterized in that the upper surface of the container inlet consists of at least one of a flat surface and a curved surface.

6. The container assembly according to any one of claims 1, 2, or 4, characterized in that the side wall portion has an auxiliary contact portion formed at its lower end that adheres closely to the outer circumferential surface of the container inlet when the container cap is coupled to the container inlet.

7. The aforementioned side wall portion is The container assembly according to any one of claims 1, 2, or 4, characterized in that, with the container cap coupled to the container inlet, a skirt portion is connected to its lower end by a plurality of bridges, which engages with a locking projection formed on the outer circumferential surface of the container inlet.

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