Description CLOSURE OF VESSEL

Technical Field

[1] The present invention relates to a closure of a vessel, and more particularly, to a closure of a vessel mounted to an inlet of a vessel and sealing the inlet of the vessel.

Background Art [2] Generally, a vessel has an inlet through which beverages, drugs, powder, grains, etc. are put in or drawn out. The inlet of the vessel is opened or closed by a closure so that contents inside the vessel can be protected, and so that discharging the contents due to carelessness can be prevented. [3] Several kinds of contents rather than one kind of contents contained in the vessel may be mixed to each other. [4] The several kinds of contents may be put into the vessel in a mixed state to each other from the beginning. In this case, the several kinds of contents mixed to each other may be easily denatured, and may have a difficulty in maintaining their original tastes, fragrances, or qualities. [5] The several kinds of contents may be stored in different vessels or packs, and then may be mixed to each other when necessary. In this case, the processes for storing and mixing the several kinds of contents are complicated. And, mixing the several kinds of contents to each other may make a mess around. [6] For reference, the several kinds of contents may be mixed to a solvent such as water or milk. The contents may include tea such as green tea, red tea, and citron tea, powdered milk, fruit powder, or fruit juice. When the contents are mixed with the solvent, additives such as sugar, jam, cream, and oil may be provided to beverages, tea, food, etc. according to a person's tastes.

Disclosure of Invention

Technical Problem [7] Therefore, it is one object of the present invention to provide a closure of a vessel capable of storing contents to be put into a vessel, and capable of easily putting the stored contents into the vessel. [8] It is another object of the present invention to provide a closure of a vessel capable of preventing stored contents from being undesirably poured into a vessel. [9] It is still another object of the present invention to provide a closure of a vessel capable of storing contents to be poured into a vessel in a multiple manner. [10] It is yet still another object of the present invention to provide a closure of a vessel capable of rapidly and completely pouring stored contents into a vessel.

Technical Solution

[11] To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a closure of a vessel, comprising: a body mounted to an inlet of a vessel; a plug movably installed at the inlet of the vessel, the plug having an inner space to store contents to be poured into the vessel; a sealing member for sealing the inner space of the plug; and one or more cutting portions coupled to the body, for cutting the sealing member when the plug is moved.

[12] The body may comprise a body supporting portion inserted into the inlet of the vessel for supporting the cutting portion.

[13] The body supporting portion may be formed to have a space where the plug is inserted to be moved.

[14] The body supporting portion may be provided with one or more pouring holes communicated with the inside of the vessel.

[15] The cutting portion may be disposed at an inner side of the pouring hole.

[16] The plug may comprise a supporting portion coupled to the body; and a movable portion formed such that the inner space is opened toward the cutting portion, detachably coupled to the supporting portion, and separated from the supporting portion thus to be moved when receiving an external force. The sealing member may seal the opened part of the plug toward the cutting portion.

[17] At at least one of the plug and the body, may be formed an interference protrusion such that the plug interfered with the body in a locked state is movable when receiving an external force.

[18] The closure of the vessel may further comprise an expansion portion coupled to the body or the cutting portion, for cutting the sealing member and widening the cutout portion of the sealing member.

[19] The expansion portion may be configured so as to be closely contacted to an inner s urface of the plug after passing through the cutout portion of the sealing member.

[20] A plug inserting portion for inserting the plug thereinto when the expansion portion is inserted into the inner space of the plug may be formed between the body and the expansion portion.

[21] The closure of the vessel may further comprise a protection cover detachably covering the outside of the plug, or the outsides of the plug and the body.

[22] At at least one of the protection cover, the body, and the plug, formed is a closure interference protrusion for preventing separation of the protection cover; and, the protection cover is formed such that at least a part thereof corresponding to the closure interference protrusion is cut out, so as to be easily separated.

[23] According to another aspect of the present invention there is provided a closure of a vessel, comprising: a body mounted to an inlet of a vessel; a plug movably installed at the inlet of the vessel, the plug having an inner space, for storing, at the inner space, a pack containing contents to be poured into the vessel; and one or more cutting portions coupled to the body, for cutting the pack when the plug is moved.

[24] The pack may comprise a pack member having an accommodation space for storing the contents; and a sealing member closely contacted to the plug, for sealing the a ccommodation space of the pack member. The cutting portion may cut the sealing member.

[25] An outer surface of the pack may be inserted into the inner space with a gap from an inner wall of the plug.

[26] A gap maintaining portion for maintaining a gap between the outer surface of the pack and the inner wall of the plug may be further formed on the outer surface of the pack, or on the inner wall of the plug.

Advantageous Effects

[27] The closure of vessel in accordance with the present invention has an advantage in that since contents to be poured into the vessel are stored individually and the stored contents are easily poured into the vessel, various types of contents can be stored to be used.

[28] In addition, the closure of vessel in accordance with the present invention has an advantage in that since the stored contents are kept to maintain the original tastes, flavors, and qualities, etc., the closure of the vessel can be variously utilized.

[29] In addition, the closure of vessel in accordance with the present invention has an advantage in that since the stored contents are kept in a completely sealed state, a user s hygiene is enhanced.

[30] In addition, the closure of vessel in accordance with the present invention has an advantage in that since the contents to be poured into the vessel are stored in the plug, the entire length of the closure of the vessel can be configured to be short.

[31] In addition, the closure of vessel in accordance with the present invention has an advantage in that since the contents to be poured into the vessel are stored in the plug, the plug can obtain a sufficient moving distance.

[32] In addition, the closure of vessel in accordance with the present invention has an advantage in that since the contents to be poured into the vessel are stored in the plug, a pack for wrapping the contents is not additionally required.

[33] In addition, the closure of vessel in accordance with the present invention has an advantage in that since the contents to be poured into the vessel are stored in the plug, the contents are prevented from being unintentionally poured into the vessel before the

plug is moved. [34] In addition, the closure of vessel in accordance with the present invention has an advantage in that since the contents to be poured into the vessel are stored in the plug, an additional structure to prevent the contents from being intentionally poured into the vessel is not required. [35] In addition, the closure of vessel in accordance with the present invention has an advantage in that since one or more sealed spaces are formed between the contents stored in the plug and the plug, the stored contents are safely protected from drastic temperature changes, moisture, impact, etc. [36] In addition, the closure of vessel in accordance with the present invention has an advantage in that owing to the expansion portion for widening a cutout portion of the sealing member, the stored contents can be completely poured into the vessel.

Brief Description of Drawings [37] FIG. 1 is a perspective view showing a state that a closure of a vessel is mounted to a vessel without a protection cover according to a first embodiment of the present invention; [38] FIG. 2 is a sectional view showing a state that the closure of FIG. 1 is mounted to the vessel together with the protection cover;

[39] FIG. 3 is a sectional view showing a separated state of the protection cover of FIG. 2;

[40] FIG. 4 is a sectional view showing a process for pouring contents stored in the closure into the vessel of FIG. 2; [41] FIG. 5 is a sectional view showing a state that the contents stored in the closure have been poured into the vessel of FIG. 2; [42] FIG. 6 is a sectional view showing a state that the closure of FIG. 5 has been separated from the vessel;

[43] FIG. 7 is a disassembled sectional view of the closure of the vessel of FIG. 2;

[44] FIG. 8 is a sectional view taken along line A-A in FIG. 3;

[45] FIG. 9 is a sectional view taken along line A-A in FIG. 5;

[46] FIG. 10 is a perspective view showing a state that a closure of a vessel is mounted to a vessel without a protection cover according to a second embodiment of the present invention;

[47] FIG. 11 is a sectional view of FIG. 10;

[48] FIG. 12 is a sectional view showing a state that the contents stored in the closure has been poured into the vessel of FIG. 11 ;

[49] FIG. 13 is a disassembled sectional view of the closure of the vessel of FIG. 11;

[50] FIG. 14 is a sectional view taken along line A-A in FIG. 11;

[51] FIG. 15 is a perspective view of a closure of a vessel according to a third

embodiment of the present invention;

[52] FIG. 16 is a sectional view of FIG. 15;

[53] FIG. 17 is a sectional view showing a separated state of a supplementary cover of

FIG. 16; and

[54] FIG. 18 is a sectional view showing a state that contents stored in the closure of FIG.

16 have been poured into a vessel. Mode for the Invention

[55] Hereinafter, a closure of a vessel according to the first embodiment of the present invention will be explained in more detail with reference to FIGS. 1 to 9.

[56] A closure of a vessel according to the first embodiment of the present invention comprises: a body 10 mounted to an inlet 2A of a vessel 2; a plug 20 movably installed at the inlet 2A of the vessel 2, the plug 20 having an inner space (S) to store contents (P) such as liquid or power to be poured into the vessel 2; a sealing member 30 for sealing the inner space (S) of the plug 20; and one or more cutting portions 40 coupled to the body 10, for cutting the sealing member 30 when the plug 20 is moved, and pouring the contents (P) stored at the inner space (S) into the vessel 2.

[57] The body 10 may include a body portion 12 detachably coupled to the inlet 2A of the vessel 2, and a body supporting portion 14 connected to the body portion 12 for supporting the cutting portion 40.

[58] The body portion 12 may be detachably coupled to the vessel 2 in a snap manner or in a coupling manner using screw coupling.

[59] The body portion 12 may be connected to a skirt part 12B having a lower end mounted to the vessel 2 and separated from the vessel 2 by being broken, such that a separated state of the body 10 from the vessel 2 is recognized.

[60] The body supporting portion 14 may be formed such that at least a part thereof are inserted into the vessel 2, and are mounted to the vessel 2 to be protruding from the vessel 2 by a predetermined length. The body supporting portion 14 may be configured to have a space where the plug 20 is inserted and moved (hereinafter, will be referred to as 'body inner space 14A').

[61] As the body supporting portion 14 is configured to be closely contacted to an inner surface of the vessel 2, a sealed state of the inlet 2A of the vessel 2 is well maintained. The body supporting portion 14 is provided with one or more sealing portions protruding from an outer surface thereof to be closely contacted to an inner surface of the vessel 2, thereby better maintaining a sealed state of the inlet 2A of the vessel 2. The sealing portion may have various structures such as a ring-shaped protrusion.

[62] The body supporting portion 14 may be provided with one or more pouring holes

14B communicated with the inside of the vessel 2, such that the contents (P) stored at

the inner space (S) of the plug 30 are poured into the vessel 2.

[63] The body supporting portion 14 may be composed of an pouring hole 14B installed to vertically partition the inlet 2A of the vessel 2, a bottom portion 14C for supporting the cutting portion 40 and an expansion portion 50 to be later explained, and a ring- shaped side wall portion 14D coupled to the edge of the bottom portion 14C to be closely contacted to an inner surface of the inlet 2A of the vessel 2, and forming the body inner space 14A.

[64] The plug 20 may include a supporting portion 22 coupled to the body 10; and a movable portion 24 having the inner space (S) to store the contents (P), detachably coupled to the supporting portion 22, and separated from the supporting portion 22 to be moved into the vessel 2 when receiving an external force.

[65] More concretely, once the movable portion 24 fixed to the supporting portion 22 is pressed by an external force, the movable portion 24 is separated from the supporting portion 22 to be moved into the vessel 2.

[66] This may prevent the movable portion 24 that has not been pressed from being unintentionally moved, but may allow the movable portion 24 that has been pressed to be easily moved. Since the supporting portion 22 is stably coupled to the body 10 due to no motion thereof, the plug 20 is completely prevented form being separated. This also allows the supporting portion 22 and the body 10 to be coupled to each other in various manners.

[67] The supporting portion 22 may be formed in a ring shape so as to be fitted into outside of the body 10. And, the supporting portion 22 may be provided with one or more locking protrusions 22A protruding from an inner wall of the supporting portion 22 to be closely contacted to the body 10. This may allow the supporting portion 22 to be coupled to the body 10 in easy and simple manners. In order to stably couple the supporting portion 22 and the body 10 to each other, the locking protrusion 22A of the supporting portion 22 is preferably configured in plurality in number along the circumference of the supporting portion 22. As the locking protrusion 22A of the supporting portion 22 is configured to be inserted into a locking protrusion groove 16 formed at an outer wall of the body 10, a coupling force between the supporting portion 22 and the body 10 may be increased.

[68] The movable portion 24 may be integrally connected to the supporting portion 22 by a bridge such as a protrusion, such that it is separated from the supporting portion 22 when being pressed by an external force.

[69] The movable portion 24 may be configured such that at least a part thereof are inserted into the body inner space 14A to be closely contacted to the side wall portion 14D of the body supporting portion 14. Accordingly, the movable portion 24 may move with maintaining an inserted state into the body inner space 14A. And, the sealed

state of the vessel 2 may be maintained even after the movable portion 24 is moved, as well as before the movable portion 24 is moved.

[70] Tbe movable portion 24 may be configured to be protruding from the body 10 and the vessel 2 in a coupled state to the supporting portion 22. Accordingly, the movable portion 24 may easily move in a downward direction of the plug 20.

[71] The movable portion 24 may be provided with one or more sealing portions protruding from an outer surface thereof to be closely contacted to the side wall portion 14D of the body supporting portion 14, thereby more maintaining a sealed state of the vessel 2. The sealing portion of the movable portion 24 may have various structures such as a ring-shaped protrusion.

[72] The inner space (S) of the movable portion 24 is formed to be downward opened for storing the contents (P), and to be sealed by the sealing member 30 after the contents (P) are stored therein. Accordingly, the stored contents (P) are safely protected from drastic temperature changes, moisture, impact, etc.

[73] The inner space (S) may be opened toward a lower side of the movable portion 24, i.e., the cutting portion 40.

[74] The inner space (S) may directly store the contents (P), or may store the contents (P) with being contained in a pack, or in an additional member as shown in the second embodiment. Then, the inner space (S) may be sealed by the sealing member 30.

[75] The sealing member 30 may be formed of various materials, and may be formed in various structures. Preferably, the sealing member 30 may be implemented as a member capable of stably sealing the inner space (S) and being easily cut by the cutting portion 40, thereby being coupled to the movable portion 24 of the plug 20.

[76] The sealing member 30 may be formed of various materials such as vinyl, an aluminum foil, and a synthetic resin including an aluminum thin plate. And, the sealing member 30 may be coupled to the movable portion 24 in a direct conduction manner, or an induction manner using a high frequency.

[77] The cutting portion 40 may have any structures to cut the sealing member 30 into pieces. For instance, the cutting portion 40 may be implemented as a knife blade, a needle, or a rib having a sharp shape as shown in the preferred embodiment. Preferably, the cutting portion 40 implemented as a rib may have a triangular shape such as a triangular corn or a triangular panel. The cutting portion 40 formed in a triangular shape facilitates cutting of the sealing member 30, by gradually cutting the sealing member 30 and allowing the cutout portion of the sealing member 30 to be widened.

[78] In order for the contents (P) stored at the inner space (S) to be directly poured into the vessel 2 through the pouring hole (14B) without remaining at the body supporting portion 16, the cutting portion 40 is preferably disposed at an inner side of the pouring

hole 14B.

[79] The cutting portion 40 may be disposed at any position inside the pouring hole 14B only if it serves to cut the sealing member 30. However, in the preferred embodiment, the cutting portion 40 is disposed at a central portion of the pouring hole 14B.

[80] The cutting portion 40 may be connected to the body 10 through one or more bridges

(hereinafter, will be referred to as 'cutting portion bridges 42'), such that it is supported by the body 10 at an inner side of the pouring hole 14B. The cutting portion 40 may be directly connected to the body 10, or like in the preferred embodiment, may be indirectly connected to the body 10 through an expansion portion 50 to be later explained.

[81] In order to prevent unintentional cutting of the sealing member 30, the cutting portion 40 is preferably configured to maintain a predetermined gap (hereinafter, will be referred to as 'cutting limitation gap Gl') from the sealing member 30 before the supporting portion 22 of the plug 20 is separated from the movable portion 24. The cutting limitation gap (Gl) is preferably set such that the cutting portion 40 rapidly cuts the sealing member 30 when the supporting portion 22 of the plug 20 is separated from the movable portion 24.

[82] The closure of the vessel may further comprise an expansion portion 50 for widening a cutout portion of the sealing member 30 by passing through the cutout portion when the sealing member 30 is cut by the cutting portion 40. Owing to the expansion portion 50, the contents (P) stored at the inner space (S) are rapidly and completely poured into the vessel 2, which may enhance a function of the closure of the vessel.

[83] The expansion portion 50 may be coupled to at least one of the body 10 and the cutting portion 40, such that it is operated by interworking the cutting portion 40 when the cutting portion 40 is supported by the body 10 like in the preferred embodiment.

[84] In the preferred embodiment, the expansion portion 50 is coupled to the bottom portion 14C of the body supporting portion 14. More concretely, the expansion portion 50 may be protruding from the bottom portion 14C of the body supporting portion 14 toward the plug 20. And, the expansion portion 50 may be structurally coupled to the cutting portion 40 with supporting the cutting portion 40, such that the cutting portion is disposed to be close to the sealing member 30.

[85] The expansion portion 50 is preferably disposed outside the pouring hole 14B, such that a cutout portion of the sealing member 30 is expanded by a size equal to or larger than the pouring hole 14B, and the contents (P) stored at the inner space (S) are immediately poured into the vessel 2 through the pouring hole 14B.

[86] The expansion portion 50 is preferably configured to expand a cutout portion of the sealing member 30, such that an opened part of the inner space (S) is completely opened.

[87] Once a cutout portion of the sealing member 30 is expanded by the expansion portion

50, the sealing member 30 is pushed into the inner space (S) to be folded. Here, the sealing member 30 is preferably configured to be closely contacted to a wall surface of the inner space (S), such that the contents (P) do not remain between the wall surface of the inner space (S) and the folded sealing member 30.

[88] The expansion portion 50 may consist of a plurality of ribs arranged along the pouring hole 14B, and may be formed in a ring shape. When the expansion portion 50 comprises a plurality of ribs, the ribs may be formed in various shapes. And, when the expansion portion 50 is formed in a ring shape, its inner diameter and outer diameter may be constant in upper and lower directions like in the preferred embodiment. However, the inner and outer diameters of the expansion portion 50 may not be constant in upper and lower directions, respectively, like a circular corn.

[89] Preferably, a plug inserting portion (H) for inserting the movable portion 24 of the plug 20 thereinto is formed at the body 10, more concretely, between the side wall portion 14D of the body supporting portion 14 and the expansion portion 50. That is, the expansion portion 50 may be configured to maintain a predetermined gap (hereinafter, will be referred to as 'plug inserting gap G2') from the side wall portion 14D of the body supporting portion 14.

[90] Once the plug inserting portion (H) is formed, the movable portion 24 of the plug 20 can move into the vessel 2 without inferring with the expansion portion 50. The plug inserting portion (H) also serves to prevent the movable portion 24 of the plug 20 having moved into the vessel 2 from being moved out. Furthermore, the plug inserting portion (H) also serves to allow the vessel 2 to be sealed in a multiple manner, after the movable portion 24 of the plug 20 has moved into the vessel 2.

[91] The closure of the vessel may further comprise a protection cover 60 detachably covering the outside of the plug 20. The protection cover 60 may serve to prevent the plug 20 from being unintentionally pressed. Furthermore, as the plug 20 is protected in a clean state, the protection cover 60 may prevent external materials from being introduced into the vessel 2. The protection cover 60 may be provided with one or more protection cover protrusions 62 closely contacted to the plug 20, such that a covered state of the plus 20 by the protection cover 60 is maintained.

[92] The operation of the closure of the vessel according to the first embodiment of the present invention will be explained in more detail.

[93] As shown in FIGS. 1 to 3, once the closure of the vessel according to the first embodiment is mounted to the vessel 2, the body portion 12 is in a state fitted into the inlet 2A of the vessel 2 in a state that the body part 12A and the skirt part 12B are coupled to each other. And, the body supporting portion 14 is in a state inserted into the vessel 2 together with the cutting portion 40 and the expansion portion 50.

[94] Here, the supporting portion 22 of the plug 20 is in a state fitted into the body 10, the supporting portion 22 and the movable portion 24 are in a state coupled to each other, and the movable portion 24 is in a state protruding from the vessel 2. And, the movable portion 24 maintains the cutting limitation gap (Gl) from the cutting portion 40.

[95] The contents (P) to be poured into the vessel 2 are stored at the inner space (S), and the inner space (S) is sealed by the sealing member 30.

[96] As shown in FIG. 2, the protection cover 60 is covered outside the plug 20.

[97] Once the closure of the vessel according to the present invention is mounted to the vessel 2, the vessel 2 may be sealed in a state that the contents (P) to be poured into the vessel 2 are stored in the closure of the vessel.

[98] Referring to FIGS. 1 to 3, when the plug 20 is pressed by a user's hand or other part of a body, or other tool after the protection cover 60 is detached, the supporting portion 22 of the plug 20 is separated from the movable portion 24 by the pressing force. Then, the movable portion 24 moves into the vessel 2.

[99] As shown in FIG. 4, the movable portion 24 moves by a distance more than the cutting limitation gap (Gl), and the cutting portion 40 is inserted into the inner space (S) by penetrating the sealing member 30, thereby cutting the sealing member 30. Accordingly, the inner space (S) is opened, and the contents (P) stored at the inner space (S) are discharged from the inner space (S) to be poured into the vessel 2 through the pouring hole 14B.

[100] As shown in FIG. 4, when the movable portion 24 more moves into the vessel 2, the expansion portion 50 is inserted into the inner space (S) via the cutout portion of the sealing member 30 as shown in FIG. 5. Accordingly, the cutout portion of the sealing member 30 is widened by the expansion portion 50, thereby more rapidly pouring the contents (P) stored at the inner space (S) into the vessel 2. And, the movable portion 24 is fitted into the plug inserting portion (H).

[101] By the expansion portion 50, the inner space (S) is wholly opened, and the sealing member 30 is completely folded toward inside of the inner space (S) to be closely contacted to the wall surface of the inner space (S). This may allow the contents (P) to be entirely and rapidly poured into the vessel 2.

[102] As shown in FIGS. 1, 3 or 5, once the body 10 is rotated in a state that the closure of the vessel has been mounted to the vessel 2, the body part 12A of the body 10 is separated from the skirt part 12B. And, the body 10 is rotated to be moved to an upper side of the inlet 2A of the vessel. Accordingly, as shown in FIG. 6, the closure of the vessel may be entirely separated from the vessel 2 except for the skirt part 12B, and the inlet 2A of the vessel 2 may be opened.

[103] The contents (P) may be stored at the inner space (S) of the inner space (S) by being contained in a pack or an additional member.

[104] Hereinafter, a closure of a vessel according to a second embodiment of the present invention will be explained in more detail with reference to FIGS. 10 to 14.

[105] The second embodiment is the same as the first embodiment except for a coupling method between the body and the vessel, and a structure of the plug. The same reference numerals as those of the first embodiment will be given to the second embodiment, and only the differences from the first embodiment will be explained.

[106] In the second embodiment, the body 10, more concretely the body portion 12 may be coupled to the vessel 2 in a coupling manner using screws, or in a snap manner.

[107] A pack 130 containing the contents (P) to be poured into the vessel 2 and cuttable by the cutting portion 40 may be inserted into the inner space (S) of the plug 20.

[108] The pack 130 may be provided with an accommodation space (Sl) having an opened lower side and storing the contents (P) therein. The pack 130 may be formed to have a shape similar to that of the inner space (S).

[109] The pack 130 may include a pack member 132 having the accommodation space (Sl), and a sealing member 30 cut by the cutting portion 40 and sealing the accommodation space (Sl) of the pack member 132.

[110] The accommodation space (Sl) is opened toward the cutting portion 40, and the sealing member 30 is hermetically coupled to the pack member 132 so as to seal the opened part of the accommodation space (Sl) toward the cutting portion 40. Here, the sealing member 30 may be extending from the edge thereof to be coupled to the plug 20.

[I l l] The pack 130 may be inserted into the inner space (S) of the plug 20 with a predetermined gap, thereby safely protecting the contents (P) from drastic temperature changes, moisture, impact, etc.

[112] The predetermined gap between the pack 130 and an inner wall of the plug 20 may be maintained by a protrusion 142 protruding from an outer surface of the pack member 132, or an inner surface of the plug 20.

[113] The pack member 132 may be formed of various materials such as vinyl or paper, and may be implemented in the form of a bag containing the contents (P).

[114] The closure of the vessel may further comprise a position determination portion 150 for determining a stopping position of the pack 130 being inserted into the inner space (S).

[115] The position determination portion 150 may be formed in any structures, and may be implemented as a position determination protrusion formed at the end of the inner space (S) for locking the pack 130.

[116] The closure of the vessel according to the second embodiment may have the same operation as that according to the first embodiment, except that the contents (P) are stored with a state kept in the pack 130, and are protected in a multiple manner by the

predetermined gap between the pack 130 and the inner wall of the plug 20.

[117] Hereinafter, a closure of a vessel according to a third embodiment of the present invention will be explained in more detail with reference to FIGS. 15 to 18.

[118] The third embodiment is the same as the first embodiment except for the plug and the protection cover. The same reference numerals as those of the first embodiment will be given to the third embodiment, and only the differences from the first embodiment will be explained.

[119] The closure of the vessel according to the third embodiment comprises a body 10, a plug 220, a sealing member 30, and a cutting portion 40.

[120] Like in the first embodiment, the body 10 may be provided with a skirt part. However, the body 10 may not be provided with the skirt part.

[121] The plug 220 may be formed such that an inner space (S) thereof is opened toward the cutting portion 40. And, the plug 220 may be composed of only a movable portion 224 directly coupled to the body 10 so as to be movable.

[122] At at least one of the movable portion 224 of the plug 220 and the body 10, may be formed an interference protrusion 300 such that the movable portion 224 of the plug 220 locked by the body 10 with interference is movable when receiving an external force.

[123] Referring to FIG. 16, once the closure of the vessel is assembled, a protrusion 302 of the interference protrusion 300 is inserted into a groove 304. Accordingly, the movable portion 224 of the plug 220 may be restricted by the body 10 due to the interference protrusion 300. This may allow the sealing member 30 and the cutting portion 40 to be spacing from each other, thereby maintaining a sealed state of the inner space (S) of the plug 220.

[124] Referring to FIG. 17, once the plug 220 is pressed toward inside of the body 10, the protrusion 302 of the interference protrusion 300 is detached from the groove 304 by the pressing force. This may allow the restricted state of the plug 220 to be released, and the contents (P) to be poured into the vessel 2 as the plug 220 moves.

[125] The interference protrusion 300 may include a protrusion 302 protruding from an outer circumferential surface of the movable portion 224 of the plug 220, and a groove 304 formed on an inner circumferential surface of the body 10 for inserting the protrusion 302 therein. As another embodiment of the interference protrusion 300, the groove 304 may be formed at the movable portion 224 of the plug 220, and the protrusion 302 may be formed at the body 10. As still another embodiment of the interference protrusion 300, the protrusion 302 may be formed at both the movable portion 224 of the plug 220 and the body 10. However, the interference protrusion 300 may have various structures without limitation to the above embodiments.

[126] The closure of the vessel may further comprise a protection cover 260 detachably

covering the outside of the plug 220, or the outside of the plug 220 and the body 10.

[127] At at least one of the protection cover 260, the body 210, and the plug 220, may be formed a closure interference protrusion 310 such that the protection cover 260 is prevented from being separated.

[128] The closure interference protrusion 310 may be preferably formed at the protection cover 260 to cause interference with the body 10 like in the preferred embodiment.

[129] The protection cover 260 may be formed such that at least a part thereof corresponding to the closure interference protrusion 310 is cut out, so as to be easily separated.

[130] The protection cover 260 may be provided with at least one pair of cutting lines 262 along a circumferential direction thereof such that only a part of the circumference thereof can be cut. As indicated by the dotted lines in FIGS. 15 and 16, a cutout portion 260A of the protection cover 260 cut by the cutting lines 262 may maintain a state connected to the other portion 260B of the protection cover 260. As another embodiment, the cutout portion 260A of the protection cover 260 may be completely detached from the other portion 260B of the supplementary closure 260.

[131] The protection cover 260 may further include a handgrip 260C extending from the cutout portion 260A so that the cutout portion 260A thereof can be more easily cut out.

[132] The cutout portion 260A of the protection cover 260 may be cut out in the snap manner of the body 110 of the second embodiment.

[133] It will also be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention cover modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.