CUP LID EASY TO DISCHARGE INTERNAL GAS

Abstract

A cup lid for easy discharge of internal gas which seals the upper portion of the cup body and discharges the internal gas of the cup body to the outside as the internal gas pressure of the cup body increases. The cup lid includes a cover portion that is detachably coupled to an upper portion of the cup body and has a circulation groove formed at one end thereof; a seal that protrudes from the lower end of the cover portion and is coupled to the upper end of the cup body; and an outlet that is coupled to the circulation groove for discharging the gas inside the cup body to the outside.

Claims

1. A cup lid coupled to a cup body to seal the cup body and discharges a gas remaining in the cup body, comprising: a cover portion detachably coupled to an upper portion of the cup body and having a circulation groove formed at one end thereof and an outflow hole penetrated in the circulation groove; a seal protruding from a lower end of the cover portion and coupled to the upper portion of the cup body; and an outlet coupled to the circulation groove for discharging the gas inside the cup body to the outside.

2. The cup lid of claim 1, wherein the outlet is accommodated in the circulation groove and placed on a top of the outflow hole; and the outlet comprises an open/close membrane having a first end attached to the upper surface of the circulation groove and a second end placed on the circulation groove; and a cap inserted into the circulation groove to cover the open/close membrane and a discharge hole penetrated therethrough.

3. The cup lid of claim 2, wherein the cap comprises a fixing member formed to protrude in a lower portion of the cap and supports an upper surface of the first end of the open/close membrane.

4. The cup lid of claim 1, wherein the seal comprises a first coupling member protruding downward from an edge of the cover portion; a second coupling member protruding toward an inner side of the first coupling member at a predetermined interval; and a third coupling member protruding toward the second coupling member from one end of the first coupling member.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG. 1 shows an exploded perspective view showing a Cup Lid Easy to Discharge Internal Gas according to an embodiment of the present invention.

[0024] FIG. 2 shows a cross-sectional view showing a state in which the Cup Lid Easy to Discharge Internal Gas is coupled to the cup body according to an exemplary embodiment of the present invention.

[0025] FIG. 3 shows an enlarged cross-sectional view of part A of FIG. 2.

[0026] FIG. 4 shows a cross-sectional view showing another embodiment of FIG. 3.

[0027] FIGS. 5A-5C show an exemplary diagram showing a change in the state of the Cup Lid Easy to Discharge Internal Gas over time of the roasted coffee stored in the cup body.

[0028] 1000: Cup Lid Easy to Discharge Internal Gas

[0029] 10: cup body

[0030] 11: engaging surface

[0031] 100: cover portion

[0032] 110: circulation groove

[0033] 111: outflow hole

[0034] 200: seal

[0035] 210: 1st coupling member

[0036] 220: 2nd coupling member

[0037] 230: 3rd coupling member

[0038] 240: 4th coupling member

[0039] 300: outlet

[0040] 310: open/close membrane

[0041] 320: cap

[0042] 321: discharge hole

[0043] 322: fixing member

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] Hereinafter, the technical idea of the present invention will be described in more detail with reference to the accompanying drawings.

[0045] The accompanying drawings are only examples to illustrate the technical idea of the present invention in more detail, and thus the technical idea of the present invention is not limited to the forms of the accompanying drawings.

[0046] However, in the following description of the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

[0047] FIG. 1 is an exploded perspective view showing a Cup Lid Easy to Discharge Internal Gas according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view illustrating a state in which a Cup Lid Easy to Discharge Internal Gas is coupled to a cup body according to an exemplary embodiment of the present invention.

[0048] As shown in FIG. 1 and FIG. 2, the Cup Lid Easy to Discharge Internal Gas (1000) according to the present invention includes a cover portion (100), a seal (200), and an outlet (300).

[0049] First, the Cup Lid Easy to Discharge Internal Gas (1000) of the present invention relates to a cup lid that is coupled to an upper end of a cup body (10) of a paper cup or a plastic cup to seal the inside of the cup body (10) and to discharge the gas containing carbon dioxide generated from the roasted coffee stored in the cup body (10) to the outside, thereby prevent the cup body (10) from being damaged by the gas while maintaining the original flavor and taste of the coffee.

[0050] In this case, the cover portion (100) is detachably coupled to an upper portion of the cup body (10), and a circulation groove (110) is formed at one end thereof, and as illustrated in FIG. 1, an outflow hole (111) is formed through the circulation groove (110).

[0051] The cover portion (100) is formed in a plate shape to correspond to the size of the opened upper portion according to the size of the cup body (10).

[0052] And the circulation groove (110) is preferably formed in the center of the cover portion (100) and inserted and coupled to the outlet (300) to be described later, and the outflow hole (111) is formed to penetrate the upper and lower portions of the circulation groove (110).

[0053] The outflow hole (111) is formed in plural so that the gas can move from the inside of the cup body (10) to the outside through the outflow hole (111).

[0054] Next, the seal (200) protrudes downward from the edge of the cover portion (100) and is coupled to the upper end of the cup body (10).

[0055] Specifically, the seal (200) comprises: a 1st coupling member (210) that adheres to the outer circumference surface of the cup body (10); a 2nd coupling member (220) that protrudes toward the inside of the 1st coupling member (210) at a predetermined interval and adheres to the inner circumference surface of the cup body (10); and a 3rd coupling member (230) that protrudes toward the 2nd coupling member (220) from one end of the 1st coupling member (210).

[0056] At this time, an engaging surface (11) protruding outward is formed on an upper portion of the cup body (10) including a conventional paper cup or plastic cup and is tight fit so that the upper surface of the 3rd coupling member (230) is in close contact with the lower surface of the engaging surface (11).

[0057] Here, the 1st coupling member (210) is in close contact with the outer circumference surface of the cup body (10), and the 2nd coupling member (220) is in close contact with the inner circumference surface of the cup body (10) to seal the inside of the cup body (10), and the 3rd coupling member (230) is engaged with the engaging surface (11) of the cup body (10) and securely fixed without being detached.

[0058] In addition, a 4th coupling member (240) protruding from the outer circumference surface of the 2nd coupling member (220) is placed below the position where the 3rd coupling member (230) protrudes, and the 3rd coupling member (230) supports the outer circumference surface of the body (10) while the 4th coupling member (240) supports the inner circumference surface of the cup body (10) so that the binding force between the cup body (10) and the Cup Lid Easy to Discharge Internal Gas (1000) of the present invention can be improved.

[0059] Next, as shown in FIG. 3, the outlet (300) is coupled to the circulation groove (110) and includes an open/close membrane (310) and a cap (320).

[0060] Here, the open/close membrane (310) is placed to cover the outflow hole (111) while being accommodated in the circulation groove (110), and one side of the lower surface meets the lower surface of the circulation groove (110) while one side of the upper surface meets the lower surface of the cap (320).

[0061] And the other lower surface meets the lower surface of the circulation groove (110) while the other upper surface meets the lower surface of the cap (320), and the portion corresponding to the outflow hole (111) is partially cut out and arranged to be moved upward by the gas discharged from the outflow hole (111).

[0062] Silicon oil is applied to the lower surface of the open/close membrane (310) which is in contact with the upper surface of the circulation groove (110) so as not to be separated from the circulation groove (110).

[0063] In this case, the open/close membrane (310) keeps its flat shape, and even though it is moved upward by the pressure inside the cup body (10), if the pressure inside and outside of the cup body (10) becomes equal as the gas inside the cup body (10) is discharged to the outside, the open/close membrane (310) contacts the upper surface of the circulation groove (110) to block the outflow hole (111).

[0064] In this case, the open/close membrane (310) may be made of a cut film of which one end is to be cut, a rubber disc of rubber material with elasticity, and a thin plastic material that can be moved upward by the gas pressure inside the cup body (10). One embodiment of the present invention shows a cut film, but is not limited thereto.

[0065] Next, the cap (320) is inserted and coupled to the circulation groove (110) to cover the open/close membrane (310), and a discharge hole (321) is formed through the end thereof.

[0066] At this time, threads are formed on the outer circumference surface of the cap (320), the corresponding threads are formed on the inner circumference surface of the circulation groove (110), and one end of the cap (320) is placed to be in close contact with the upper surface of the open/close membrane (310) so that one end of the open/close membrane (310) can be fixed.

[0067] In addition, the other end of the cap (320) is coupled to be in close contact with the upper surface of the circulation groove (110) and placed so as not to interfere with the other end of the open/close membrane (310) moving up and down.

[0068] In this case, as shown in FIG. 4, a fixing member (322) is formed protruding downward in the center of the cap (320). When the other end of the open/close membrane (310) is moved upward, the fixing member (322) prevents the upper center of the open/close membrane (310) from being moved upward and from being detached from the circulation groove (110).

[0069] Here, the cap (320) has a discharge hole (321) formed at a position corresponding to the other end of the open/close membrane (310), and the other end of the open/close membrane (310) is moved upward. Then the gas inside the cup body (10) is sequentially discharged through the outflow hole (111) and the discharge hole (321).

[0070] Next, looking at the step that the Cup Lid Easy to Discharge Internal Gas (1000) of the present invention discharges the gas inside the cup body (10).

[0071] FIG. 5A is a view showing a state in which roasted coffee is put into the cup body (10), FIG. 5B is a view showing a state in which the pressure inside the cup body (10) is increased due to the gas containing carbon dioxide generated by oxidation in the roasted coffee inside the cup body (10), and FIG. 5C is a view showing a state in which the gas inside the cup body (10) is discharged to make the pressure inside and outside the cup body (10) equal.

[0072] Upper and lower portions of the Cup Lid Easy to Discharge Internal Gas (1000) of the present invention receive an atmospheric pressure (F1) from the outside, a pressure (F2) generated inside the cup body (10), an adhesion (F3) of the open/close membrane (310), and an elasticity (F4) of the open/close membrane (310).

[0073] In FIG. 5A, when the first roasted coffee is put into the cup body (10), the external atmospheric pressure (F1) and the internal pressure (F2) of the cup body (10) are the same so that the outflow hole (111) is maintained closed by adhesion (F3) and elasticity (F4) of the open/close membrane (310) to keep the cup body (10) sealed.

[0074] Next, as shown in FIG. 5B, the roasted coffee stored in the cup body (10) generates a gas containing carbon dioxide after a predetermined time. At this time, the internal pressure (F2) of the cup body (10) gets greater than the sum of external atmospheric pressure (F1), adhesion (F3), and elasticity (F4) of the open/close membrane (310), and the other end of the open/close membrane (310) is moved upward to discharge the gas to the outside.

[0075] And as shown in FIG. 5C, as the gas generated inside the cup body (10) is discharged to the outside, the internal pressure (F2) gets equal to or lower than the sum of the external atmospheric pressure (F1) and the elasticity of the open/close membrane (310), and the open/close membrane (310) gets in close contact with the circulation groove (110), and then the outflow hole (111) is closed to keep the cup body (10) closed again.

[0076] As such, when the roasted coffee stored in the cup body (10) generates gas over time, the gas inside the cup body (10) is moved upward on the open/close membrane (310) by internal pressure, and the gas outside the cup body (10) is prevented from entering into the inside, thereby providing an effect of preventing roasted coffee from rancidity.

[0077] The present invention is not limited to the above-described embodiments and allows a wide range of applications. Various modifications can be made without departing from the gist of the present invention as stated in the claims.