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(11) | EP 4 495 024 A1 |
| (12) | EUROPEAN PATENT APPLICATION |
| published in accordance with Art. 153(4) EPC |
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| (54) | VESSEL CLOSURE AND VESSEL COUPLED WITH SAME |
| (57) The present invention relates to a vessel closure and a vessel coupled with same.
The present invention provides the vessel closure comprising: an inner cap which is
supported by a supporting portion formed on the inner circumferential surface of a
vessel inlet of a vessel, and which has a storage space (S) with an open top side;
and an outer cap coupled with the vessel inlet so as to seal the storage space (S). |
TECHNICAL FIELD
BACKGROUND ART
[0002] Liquid materials such as beverages, liquid medicines, and yogurt are contained in vessels to be distributed, and a user removes a closure coupled to each of the vessels from the vessel to drink the contents contained in the vessel.
[0003] As an example of the conventional vessel, as in Patent Document 1, a vessel closure for drinking contents together with powder, granules, etc., in a drinking form and a vessel coupled thereto are proposed.
[0004] The vessel closure in Patent Document 1 is configured to include a vessel containing liquid contents while being coupled to the vessel, an inner cap having an internal space in which a solid tablet is contained, and an outer cap coupled to the vessel so that the liquid contents do not flow into the internal space while being coupled to the vessel.
[0005] A vessel closure having the above configuration provides convenience of allowing the user to drink liquid contents and solid tablets simultaneously by separating and opening the outer cap from the vessel.
[0006] However, although the vessel closure of Patent Document 1 provides a basic function of allowing the simultaneous drinking of liquid contents and solid tablets, the structure needs to be reinforced so as to seal the internal space containing the tablets (blocking an inflow of air to protect the tablets) as well as seal the inside of the vessel (safe storage of the liquid contents contained inside the vessel).
DISCLOSURE OF THE INVENTION
TECHNICAL PROBLEM
[0008] An object of the present invention, by recognizing the above-mentioned necessity, is to provide a vessel closure, which is capable of reliably sealing an internal space provided in an inner cap and the inside of a vessel when coupled to the inner cap coupled to a vessel inlet and defining an internal space, in which auxiliary contents in the form of powder or granules are contained, and the vessel inlet, and a vessel closure coupled with the same.
TECHNICAL SOLUTION
[0009] The present invention has been created to achieve the above-mentioned purpose of the present invention, and the present invention disclosure a vessel closure including: an inner cap (100) which is supported by a support portion (311) formed on an inner circumferential surface of a vessel inlet (12) of a vessel (10) and in which a storage space (S) having an opened upper side is defined; and an outer cap (200) coupled to the vessel inlet (12) to seal the storage space (S).
[0010] The inner cap (100) may include: a cup portion (110) in which the storage space (S) is defined; and a cup support portion (120) that is connected to the cup portion (110) by one or more coupling bridges (130) so that an inner circumferential surface and an outer circumferential surface of the cup portion (110) have a gap therebetween, the cup support portion (120) being supported by the support portion (311).
[0011] An upper end of the cup support portion (120) may be provided to be lower than an upper end of the vessel inlet (12).
[0012] The cup support portion (120) may be provided with one or more protrusions (122, 123) inserted to correspond to one or more inner cap support portions (313, 312) formed on an inner circumferential surface of the vessel inlet (12) .
[0013] The protrusions (122, 123) may include a first protrusion (123) formed on an upper end of the cup support portion (120).
[0014] The cup support portion (120) may be provided with a protrusion (124) having a decreasing thickness at a portion at which the first protrusion (123) is formed, and the outer cap (200) may be provided so that a first inner ring (241) that is in close contact with the protrusion (124) extends downward from a bottom surface in a state in which the outer cap (200) is coupled to the vessel inlet (12) to seal the inside of the vessel (10).
[0015] The protrusions (122, 123) may further include one or more second protrusions (122) provided at an interval to a lower side of the first protrusion (123).
[0017] The coupling bridges (130) may be provided in plurality in a circumferential direction with respect to a horizontal center of the cup portion (110).
[0019] The outer cap (200) may be provided with a second inner ring (250) that is in close contact with an inner circumferential surface of a sidewall (112) of the cup portion (110).
[0020] The cup portion (110) may be provided so that a protruding ring (113) is formed from a bottom surface (111a) of a bottom portion 111 of the cup portion (110) at an interval inward from the inner circumferential surface of the sidewall (112) of the cap portion (110) to define a first insertion groove (111b) into which a lower portion (252) of the second inner ring (250) is inserted.
[0021] An upper end of the sidewall (112) of the cup portion (110) may be provided with a thickness reduction portion (116) having a decreasing thickness, and the second inner ring (250) may be provided with a close contact portion (254) to be in close contact with an inner circumferential surface of the thickness reduction portion (116) .
[0022] The outer cap (200) may be provided with a third inner ring (260) spaced outward from the second inner ring (250) to define a second insertion groove (261) into which the upper end of the cup portion (110) is inserted.
[0023] The present invention also disclosures a vessel to which a vessel closure is coupled, including: a vessel (10) provided with a vessel inlet (12); and a vessel closure coupled to the vessel inlet (12), wherein the vessel closure is the vessel closure having the above-described configurations.
ADVANTAGEOUS EFFECTS
[0024] The vessel closure and the vessel closure coupled with the same according to the present invention may have the advantage in that the structure capable of sealing the internal space and the inside of the vessel when the outer cap is coupled to the vessel inlet in the state in which the inner cap is coupled to the vessel inlet, thereby reliably sealing the internal space and the inside of the vessel.
[0025] In addition, the vessel closure and the vessel closure coupled with the same according to the present invention may have the structure that reinforces the blocking structure, i.e., the sealing structure, thereby enabling the safe storage of the solid tablets in the inner cap.
[0026] In addition, the vessel closure and the vessel closure coupled with the same according to the present invention may enable the safer storage of the liquid contents due to the reinforcement of the blocking structure (sealing structure) between the outer cap and the vessel inlet.
[0027] The vessel closure and the vessel closure coupled with the same according to the present invention may save the production costs by simplifying the assembly between the outer cap, the inner cap, and the vessel due to omission of the sealing member that seals the vessel inlet.
BRIEF DESCRIPTION OF THE DRAWINGS
[0028]
FIG. 1 is a perspective view illustrating a vessel closure and a vessel coupled with the same according to the present invention.
FIG. 2 is an exploded perspective view of the vessel and the vessel closure of FIG. 1.
FIG. 3a is a longitudinal cross-sectional view of the vessel and the vessel closure of the FIG. 1, and FIG. 3b is an exploded perspective view of the vessel and the vessel closure of FIG. 3a.
FIG. 4a is an enlarged cross-sectional view of a portion A of FIG. 3.
FIG. 4b is an enlarged cross-sectional view of a portion B of FIG. 3.
FIG. 4c is an enlarged cross-sectional view of a portion C of FIG. 3.
FIG. 5 is an enlarged cross-sectional view of a portion D of FIG. 4.
FIG. 6 is a plan view illustrating an inner cap of the vessel closure of FIG. 1.
FIG. 7 is a side view of the inner cap of FIG. 6.
FIG. 8 is a bottom view of the inner cap of FIG. 6.
FIG. 9 is a perspective view of the inner cap of FIG. 6.
FIG. 10 is a cutaway view of the inner cap of FIG. 6.
MODE FOR CARRYING OUT THE INVENTION
[0029] Hereinafter, a vessel closure and a vessel closure coupled with the same according to the present invention will be described with reference to the attached drawings.
[0030] The vessel closure according to the present invention, as illustrated in FIGS. 1 to 10, includes: an inner cap 100 supported by a support portion 311 formed on an inner circumferential surface of a vessel inlet 12 of a vessel 10 and having a storage space S with an upper side opened; and an outer cap 200 screw-coupled to the vessel inlet 12 to seal the storage space S.
[0031] Here, the storage space S may be utilized as a space for storing auxiliary contents separate from liquid contents stored inside the vessel 10.
[0032] The auxiliary contents may be substances that are mixed during actual use, such as drinking, without being mixed with the liquid contents stored inside the vessel 10 and may be made of various solid substances, such as powder, grains, or granules.
[0034] In addition, it goes without saying that the auxiliary contents are substances stored separately in the storage space S other than for the purpose of mixing with the liquid contents stored inside the vessel 10.
[0035] The vessel 10 may be a vessel for containing contents and be configured to contain drinkable liquid contents such as beverages and yogurt and also may have various configurations.
[0036] Particularly, the vessel 10 is provided with the vessel inlet 12 to allow the vessel closure described later to be connected.
[0037] The vessel inlet 12 may be a discharge port through which the contents are discharged and may be a portion at which the vessel closure is connected and also may have various configurations depending on the connection structure with the vessel closure described later.
[0038] Particularly, the vessel inlet 12 may be coupled to the outer cap 200 described later by various coupling structures such as screw coupling or snap coupling.
[0039] For example, the vessel inlet 12 may be screw-coupled to the outer cap 200, and for this purpose, a male screw 320 may be formed that is screw-coupled to a female screw 271 formed on an inner circumferential surface of a sidewall 270 of the outer cap 200.
[0040] In addition, the vessel inlet 12 may be provided with a ring-shaped skirt protrusion 330 with which a skirt 290 connected by a plurality of bridges 291 to a lower end of the outer cap 200 is hooked.
[0041] The inner cap 100 may be supported by the support portion 311 formed on the inner circumferential surface of the vessel inlet 12 of the vessel 10 and have the storage space S with the upper side opened and also have various configurations.
[0042] For example, the inner cap 100 may include a cup portion 110 in which the storage space S is formed, and a cup support portion 120 that is connected to the cup portion 110 by one or more coupling bridges 130 so that the inner circumferential surface and an outer circumferential surface of the cup portion 110 have a gap therebetween, and is supported by the support portion 311.
[0043] The cup portion 110 may be a configuration in which the storage space S is formed and may have various configurations.
[0044] That is, the cup portion 110 may have any structure as long as the storage space S is maintained to be sealed in the state in which the outer cap 200 described later is coupled, and the storage space S may be opened in a state in which the outer cap 200 is separated.
[0045] For example, the cup portion 110 may have any structure as long as the cup portion 110 has vessel structures such as cylindrical shapes, square box shapes, etc., with an upper side opened.
[0046] The cup support portion 120 may be connected to the cup portion 110 by one or more coupling bridges 130 so that the inner circumferential surface and the outer circumferential surface of the cup portion 110 have a gap therebetween, and may be supported by the support portion 311 formed on the vessel inlet 12 and thus may have any configuration as long as the cup support portion 120 supports the cup portion 110 by being coupled to the inner circumferential surface of the vessel inlet 12 in the state of being coupled to the cup portion 110.
[0047] For example, the cup support portion 120 may have various structures, such as forming a ring shape when viewed from above or being disposed at intervals along a circumferential direction as in Patent Document 1.
[0048] It is preferable that an upper end of the cup support portion 120 is formed lower than an upper end of the vessel inlet 12 so that the outer cap 200 described later and the upper end of the vessel inlet 12 are in close contact with each other.
[0049] That is, the upper end of the cup support portion 120 may be positioned lower than the upper end of the vessel inlet 12, so that when the outer cap 200 is coupled to the vessel inlet 12, a sealed coupling structure is provided between the inner circumferential side of the outer cap 200 and the upper end of the vessel inlet 12.
[0050] The cup support portion 120 may be provided with one or more protrusions 122 and 123 that are inserted corresponding to one or more inner cap support portions 313 and 312 formed on the inner circumferential surface of the vessel inlet 12 so that the cup support portion 120 is supported by being coupled to the inner circumferential surface of the vessel inlet 12.
[0051] The protrusions 122 and 123 may be configured to be inserted corresponding to one or more inner cap support portions 313 and 312 formed on the inner circumferential surface of the vessel inlet 12 so as to be supported by being coupled to the inner circumferential surface of the vessel inlet 12, and may have various configurations.
[0052] Here, each of the cup support portion 120 and the protrusions 122 and 123 may have a circular ring shape.
[0053] In addition, the protrusions 122 and 123 and the inner cap support portions 313 and 312 may have various configurations depending on the mutual coupling structure.
[0054] Here, it goes without saying that each of the inner cap support portions 313 and 312 is provided with a protrusion at the vessel inlet 12, and a groove may also be defined in the outer circumferential surface of the cup support portion 120.
[0055] The protrusions 122 and 123 may include a first protrusion 123 formed on the upper end of the cup support 120.
[0056] The first protrusion 123 may be formed on the upper end of the cup support 120 and be a portion at which the upper end of the cup support 120 protrudes outward to be supported by the first cup support 120 formed on the inner circumferential surface of the vessel inlet 12 and also may have various structures.
[0057] For example, the first protrusion 123 may have a structure in which the upper end of the cup support 120 protrudes further outward.
[0058] Here, the inner cap support portion 313, i.e., the first inner cap support portion 313, as shown in FIGS. 3, 4a, and 4c, may be provided as a recess that is concavely formed inwardly corresponding to an outer appearance of the first protrusion 123.
[0059] In addition, the first inner cap support portion 313 may be provided only by a support protrusion 313a that supports a lower end 128 of the first protrusion 123.
[0060] That is, instead of being provided as a groove, the first inner cap support portion 313 may have a support protrusion 313a extending from the inner circumference of the vessel inlet 12 to the upper end of the vessel inlet 12.
[0061] The protrusions 122 and 123 may additionally include one or more second protrusions 122 provided at intervals below the first protrusion 123 so as to be stably supported at the vessel inlet 12.
[0062] The second protrusion 122 may be a portion that is provided at a distance below the first protrusion 123 so as to be stably supported at the vessel inlet 12 and also may have various shapes such as a ring shape.
[0063] Here, a second inner cap support portion 312 may be formed on the inner circumferential surface of the vessel inlet 12 so that the second protrusion 122 is positioned.
[0064] The second inner cap support portion 312 may be provided as a groove in the inner circumferential surface of the vessel inlet 12 at a corresponding position so that the second protrusion 122 is positioned.
[0065] As shown in FIGS. 3, 4a and 4c, it is preferable that the inner cap support portions 312 and 313 are provided to be movable vertically in the state in which the cup support portion 120 is coupled to the vessel inlet 12.
[0066] The reason is that when the outer cap 200 is coupled to the vessel inlet 12, the inner cap 100 may be pushed from top to bottom. Here, the vertical movement may slightly move so that coupling force of the outer cap 200 and the vessel inlet 12 is also transmitted to the inner cap 100, and thus, the firm coupling state of the inner cap 100 and the outer cap 200 may be implemented.
[0067] The lower end of the cup support portion 120 may be provided to have a structure in which an outer diameter of the outer circumferential surface decreases toward the lower end so that the cup support portion 120 is smoothly inserted into the vessel inlet 12.
[0068] In addition, the cup support portion 120 may be provided with a protrusion 124 provided so that a thickness is reduced at a portion at which the first protrusion 123 is formed.
[0069] That is, the upper end of the cup support portion 120 may have a cross-sectional structure that is provided in an 'L' shape.
[0070] Specifically, the cup support portion 120 may protrude so that the outer diameter of the upper end increases. Here, an inner circumferential surface may also be provided to be biased toward the outside so that the upper end has a structure that expands toward the outside while having a relatively thin thickness compared to the remaining portion of the upper end.
[0071] Here, the outer cap 200 may be provided with a first inner ring 241 that extends downward from the bottom surface and is in close contact with the protrusion 124 while the outer cap 200 is coupled to the vessel inlet 12 to seal the inside of the vessel 10.
[0072] The first inner ring 241 may be configured to be in close contact with the protrusion 124 in the state in which the outer cap 200 is coupled to the vessel inlet 12 so as to seal the inside of the vessel 10 and may have various configurations.
[0073] The first inner ring 241 may have any structure as long as the first inner ring 241 is in close contact with an inner circumferential surface of the protrusion 124.
[0074] Particularly, the first inner ring 241 may be provided so that a lower end 241b is in close contact with the inner circumferential surface of the protrusion 124, and an upper portion 241b at an upper side thereof is in close contact with the inner circumferential surface of the vessel inlet 12.
[0075] For this purpose, an outer diameter of the lower end 241b may be provided smaller than an outer diameter of the upper portion 241b.
[0076] The reliability of sealing inside the vessel 10 may be improved by the close contact structure of the first inner ring 241 as described above.
[0077] The coupling bridges 130 may be configured to integrally couple the cup portion 120 to the cup support portion 120 and may have various configurations.
[0078] For example, the coupling bridges 130 may be provided in plurality in a circumferential direction based on a horizontal center of the cup portion 110, i.e., a Z-axis, as shown in FIGS. 6 to 10.
[0079] Here, the coupling bridges 130 may be arranged at equal intervals along the circumferential direction.
[0080] In addition, the coupling bridges 130 may be provided in various configurations, such as being formed in two or more 131 spaced apart from each other vertically, as shown in FIGS. 3 to 4c, or being formed as one having sufficient height vertically, as shown in FIG. 10.
[0081] In addition, the longitudinal cross-section of the coupling bridge 130 may have various shapes, such as a rectangle, an oval, a combination of a curve and a straight line, and a circle.
[0082] Each of the coupling bridges 130 may provide a gap between the outer circumferential surface of the cup portion 110 and the inner circumferential surface of the cup support portion 120 to provide a passage (an arrow at both sides in the drawing, P in FIG. 8) through which the contents contained inside the vessel 10 are discharged.
[0083] That is, the coupling bridge 130 is not limited to the embodiment of the present invention and may have various shapes and structures as long as the coupling bridge 130 has a structure that provides the passage through which the contents contained inside the vessel 10 are discharged.
[0084] The outer cap 200 may be configured to seal the storage space S by being screw-coupled to the vessel inlet 12 and may have various configurations.
[0085] For example, the outer cap 200 may include an upper portion 201 defining an upper side and a sidewall 202 extending from the upper portion 201 and coupled to the vessel inlet 12.
[0086] The upper portion 201 may be a portion that defines the upper side of the outer cap 200 and may have a disc shape.
[0087] The sidewall 202 may be configured to extend from the upper portion 201 and be coupled to the vessel inlet 12, and may have various configurations depending on the coupling structure with the vessel inlet 12.
[0088] It is preferable that a sealing structure of the vessel inlet 12 is provided at the portion at which the vessel inlet 12 and the outer cap 200 are in contact with the outer cap 200.
[0089] For example, the upper end of the vessel inlet 12 may have a protrusion 340 formed on the outer circumferential surface, and the outer cap 200 may have a protrusion contact portion 203 formed at a position corresponding to the protrusion 340 so as to be in close contact with the protrusion 340.
[0090] The protrusion contact portion 203 may be provided in a shape that matches an outer appearance of the protrusion 340.
[0091] It is preferable that the outer cap 200 seals the storage space S of the inner cap 100 described above in addition to the sealed coupling structure of the vessel inlet 12.
[0092] Thus, the outer cap 200 may be provided with a second inner ring 250 that is close contact with an inner circumferential surface of the sidewall 112 of the cup portion 110.
[0093] The second inner ring 250 may be provide to extend downward from a bottom surface of the upper portion 201 of the outer cap 200 so as to be in close contact with the inner circumferential surface of the sidewall 112 of the cup portion 110.
[0094] Here, the cup portion 110 may have a protruding ring 113 formed from the bottom surface 111a of the bottom portion 111 of the cup portion 110 at an interval inward from the inner circumferential surface of the sidewall 112 of the cap portion 110 to define a first insertion groove 111b into which the lower portion 252 of the second inner ring 250 is inserted.
[0095] The protruding ring 113 may be configured to be provided from the bottom surface 111a of the bottom portion 111 of the cup portion 110 at an inward interval from the inner circumferential surface of the sidewall 112 of the cap portion 110 to define the first insertion groove 111b into which the lower portion 252 of the second inner ring 250 is inserted and may have various configurations.
[0096] Particularly, the protruding ring 113 may have an inclined surface defined on the outer circumferential surface of the upper portion having an outer diameter that decreases as it goes upward so that the second inner ring 250 is smoothly inserted into the first insertion groove 111b.
[0097] In addition, as shown in FIGS. 4a and 4b, it is preferable that the first insertion groove 111b be defined so that its width decreases downward so that the lower portion of the second inner ring 250 is in close contact with the first insertion groove 111b.
[0098] A thickness reduction portion 116 having a decreasing thickness may be form on the upper end of the sidewall 112 of the cup portion 110, and the second inner ring 250 may have a close contact portion 254 provided to be in close contact with the inner circumferential surface of the thickness reduction portion 116.
[0099] The thickness reduction portion 116 may be a portion at which the upper end of the sidewall 112 of the cup portion 110 decreases in thickness and may have various structures.
[0100] For example, the sidewall 112 of the cup portion 110 may be provided as a portion that extends upward with a certain thickness from the bottom portion 111 of the cup portion 110 and has an increasing inner diameter of the inner circumferential surface of the upper end.
[0101] Accordingly, the second inner ring 250 may be provided as a portion with a relatively large outer diameter corresponding to the thickness reduction portion 116, that is, the close contact portion 254, and a portion with a relatively small outer diameter at a lower side thereof.
[0102] Here, the second inner ring 250 may be provided in a structure in which its thickness decreases as it goes toward the lower side, i.e., an end.
[0103] Here, the sidewall 112 of the cup portion 110 may also be provided so that an inner diameter of the corresponding portion increases as the outer diameter of the second inner ring 250 decreases.
[0104] The close contact portion 254 may be a portion formed on the outer circumferential surface of the second inner ring 250 so as to be in close contact with the inner circumferential surface of the thickness reduction portion 116, and may have various configurations depending on the close contact structure of the thickness reduction portion 116.
[0105] Here, the second inner ring 250 may be connected to the close contact portion 254 and the remaining portion by a connection portion 255 such as a gentle curve or stepped portion.
[0106] In addition, the sidewall 112 of the cup portion 110 may be connected to the thickness reduction portion 116 and the remaining portion by a connection portion 115 such as a gentle curve or stepped portion.
[0107] In addition, the outer cap 200 may be provided with a third inner ring 260 spaced outward from the second inner ring 250 to define a second insertion groove 261 into which the upper end of the cup portion 110 is inserted.
[0108] The third inner ring 260 may be configured to extend downward from the bottom surface of the upper portion 201 of the outer cap 200 with a gap outside the second inner ring 250 to define the second insertion groove 261 into which the upper end of the cup portion 110 is inserted, and may have various configurations.
[0109] Here, it is preferable that the third inner ring 260 is provided so that an inner diameter of a lower end increases as it goes downward so that the upper end of the cup portion 110 is stably inserted.
1. A vessel closure comprising:
an inner cap (100) which is supported by a support portion (311) formed on an inner circumferential surface of a vessel inlet (12) of a vessel (10) and in which a storage space (S) having an opened upper side is defined; and
an outer cap (200) coupled to the vessel inlet (12) to seal the storage space (S).
2. The vessel closure of claim 1, wherein the inner cap (100) comprises:
a cup portion (110) in which the storage space (S) is defined; and
a cup support portion (120) that is connected to the cup portion (110) by one or more coupling bridges (130) so that an inner circumferential surface and an outer circumferential surface of the cup portion (110) have a gap therebetween, the cup support portion (120) being supported by the support portion (311).
3. The vessel closure of claim 2, wherein an upper end of the cup support portion (120)
is provided to be lower than an upper end of the vessel inlet (12).
4. The vessel closure of claim 2, wherein the cup support portion (120) is provided with
one or more protrusions (122, 123) inserted to correspond to one or more inner cap
support portions (313, 312) formed on an inner circumferential surface of the vessel
inlet (12).
5. The vessel closure of claim 4, wherein the protrusions (122, 123) comprise a first
protrusion (123) formed on an upper end of the cup support portion (120).
6. The vessel closure of claim 5, wherein the cup support portion (120) is provided with
a protrusion (124) having a decreasing thickness at a portion at which the first protrusion
(123) is formed, and
the outer cap (200) is provided so that a first inner ring (241) that is in close contact with the protrusion (124) extends downward from a bottom surface in a state in which the outer cap (200) is coupled to the vessel inlet (12) to seal the inside of the vessel (10).
the outer cap (200) is provided so that a first inner ring (241) that is in close contact with the protrusion (124) extends downward from a bottom surface in a state in which the outer cap (200) is coupled to the vessel inlet (12) to seal the inside of the vessel (10).
7. The vessel closure of claim 4, wherein the protrusions (122, 123) further comprise
one or more second protrusions (122) provided at an interval to a lower side of the
first protrusion (123).
8. The vessel closure of claim 4, wherein each of the cup support portion (120) and the
protrusions (122, 123) has a ring shape.
9. The vessel closure of claim 2, wherein the coupling bridges (130) are provided in
plurality in a circumferential direction with respect to a horizontal center of the
cup portion (110).
10. The vessel closure of claim 2, wherein the coupling bridges (130) is provided in plurality
in a vertical direction.
11. The vessel closure of claim 2, wherein the outer cap (200) is provided with a second
inner ring (250) that is in close contact with an inner circumferential surface of
a sidewall (112) of the cup portion (110).
12. The vessel closure of claim 11, wherein the cup portion (110) is provided so that
a protruding ring (113) is formed from a bottom surface (111a) of a bottom portion
111 of the cup portion (110) at an interval inward from the inner circumferential
surface of the sidewall (112) of the cap portion (110) to define a first insertion
groove (111b) into which a lower portion (252) of the second inner ring (250) is inserted.
13. The vessel closure of claim 11, wherein an upper end of the sidewall (112) of the
cup portion (110) is provided with a thickness reduction portion (116) having a decreasing
thickness, and
the second inner ring (250) is provided with a close contact portion (254) to be in close contact with an inner circumferential surface of the thickness reduction portion (116) .
the second inner ring (250) is provided with a close contact portion (254) to be in close contact with an inner circumferential surface of the thickness reduction portion (116) .
14. The vessel closure of claim 11, wherein the outer cap (200) is provided with a third
inner ring (260) spaced outward from the second inner ring (250) to define a second
insertion groove (261) into which the upper end of the cup portion (110) is inserted.
15. A vessel to which a vessel closure is coupled, comprising:
a vessel (10) provided with a vessel inlet (12); and
a vessel closure coupled to the vessel inlet (12),
wherein the vessel closure is the vessel closure of any one of claims 1 to 14.
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.
Patent documents cited in the description