Lid for beverage container, method for forming a drinking opening of a lid for a beverage container, and beverage container

Abstract

Provided is a lid for a beverage container that can form a drink opening from which a beverage is easily drinkable even if a straw is removed and the lid for the beverage container is not removed. A lid for a beverage container (1) has a cover plate portion (4) that covers an opening portion (3) of a beverage container (2) and a side peripheral portion (5) that can be engaged with a rim portion (3a) of the opening portion (3), wherein the lid for the beverage container (1) has a drink opening forming line portion (11) that is the shape of the peripheral edge side of a drink opening (110) of the cover plate portion (4), a low-strength portion (13) for folding that, when pressed in from above at a drink opening forming site (11A, 11B) surrounded by the drink opening forming line portion (11), makes folding between a drink opening forming outer site (11A) and a drink opening forming inner site (11B) based on valley folding easy to perform, and an engaging portion that can engage with the peripheral edge of the drink opening forming outer site (11A) in a state in which the drink opening forming inner site (11B) is mountain folded and the drink opening forming outer site (11A) is valley folded and bulges further to fold the drink opening forming outer site (11A) and the drink opening forming inner site (11B).

Description

TECHNICAL FIELD

[0001] The present application relates to a beverage container lid covering an opening of a beverage container, a drinking hole forming method of the beverage container lid, and a beverage container having the beverage container lid. BACKGROUND

[0002] Conventionally, in a large number of beverage sales stores such as fast food restaurants or convenience stores, sales are performed in such a manner that a beverage container lid is used to cover an opening of a beverage container such as a plastic (synthetic resin) or paper cup, so that a beverage such as juice or coffee contained in the inside of the beverage container is not easily spilled from the opening when carried.

[0003] To drink the beverage contained in the inside of the beverage container, the beverage container lid can simply be removed and the beverage can be drunk from the opening, but when the beverage container lid is removed, the beverage adhering to the inside thereof can fly and soil the clothes or the like of the drinker.

[0004] Therefore, many times, an insertion portion of a straw is provided to the beverage container lid, and the beverage in the inside of the beverage container is easily drunk by inserting the attached straw (see Patent Document 1 and the like).

[0005] However, recently, due to the problem of ocean pollution caused by plastic waste and the like, the worldwide trend of de-plasticization is increasing, and as one of them, the trend of canceling the straw made of plastic is also increasing.

[0006] Under such circumstances, there is a demand for a beverage container lid that can form a drinking hole in which the beverage is easily drunk even if the straw is canceled and the beverage container lid is not removed.

[0007] PRIOR ART DOCUMENTS

[0008] PATENT DOCUMENTS

[0009] Patent Document 1: Japanese Patent Application Publication No. 2021-14286 SUMMARY

[0010] PROBLEMS TO BE SOLVED BY THE INVENTION

[0011] Therefore, the present application is proposed in view of the above background, and an object thereof is to provide a beverage container lid that can form a drinking hole in which the beverage is easily drunk even if the straw is canceled and the beverage container lid is not removed, a drinking hole forming method of the beverage container lid, and a beverage container having the beverage container lid.

[0012] MEANS FOR SOLVING THE PROBLEMS

[0013] The present inventors have invented a lid for a beverage container, which has a cover plate portion that covers an opening portion of a beverage container, and a side peripheral portion that is provided to an outer peripheral edge of the cover plate portion and is capable of engaging with a rim portion of the opening portion of the beverage container when the cover plate portion covers the opening portion of the beverage container, wherein the lid for a beverage container has a drinking port forming line portion that is provided to a peripheral edge side of the cover plate portion and is used for forming a drinking port, the drinking port forming line portion is shaped to a peripheral edge side of the drinking port and is composed of a low-strength portion that has a lower strength than a general portion of the cover plate portion, a folding low-strength portion that has a lower strength than the general portion of the cover plate portion, the folding low-strength portion is used for facilitating folding based on a valley fold between a drinking port forming outer side portion of the cover plate portion peripheral edge side of a drinking port forming portion surrounded by the drinking port forming line portion and a drinking port forming inner side portion of an inner side of the cover plate portion when the drinking port forming portion is pressed from above, and an engaging portion that is capable of engaging with a locking portion of a peripheral edge of the drinking port forming outer side portion in a state in which the drinking port forming inner side portion is mountain-folded and the drinking port forming outer side portion is valley-folded and is raised further to fold the drinking port forming outer side portion and the drinking port forming inner side portion.

[0014] The lid for a beverage container of the first invention has a cover plate portion that covers an opening portion of a beverage container, and a side peripheral portion that is provided to an outer peripheral edge of the cover plate portion and is capable of engaging with a rim portion of the opening portion of the beverage container when the cover plate portion covers the opening portion of the beverage container, characterized in that the lid for a beverage container has a drinking port forming line portion that is provided to a peripheral edge side of the cover plate portion and is used for forming a drinking port, the drinking port forming line portion is shaped to a peripheral edge side of the drinking port and is composed of a low-strength portion that has a lower strength than a general portion of the cover plate portion, a folding low-strength portion that has a lower strength than the general portion of the cover plate portion, the folding low-strength portion is used for facilitating folding based on a valley fold between a drinking port forming outer side portion of the cover plate portion peripheral edge side of a drinking port forming portion surrounded by the drinking port forming line portion and a drinking port forming inner side portion of an inner side of the cover plate portion when the drinking port forming portion is pressed from above, and an engaging portion that is capable of engaging with a locking portion of a peripheral edge of the drinking port forming outer side portion in a state in which the drinking port forming inner side portion is mountain-folded and the drinking port forming outer side portion is valley-folded and is raised further to fold the drinking port forming outer side portion and the drinking port forming inner side portion.

[0015] The lid for a beverage container of the second invention is based on the first invention, characterized in that a mountain-fold low-strength portion that has a lower strength than a general portion of the cover plate portion is provided between inner side end portions of the drinking port forming line portion of the drinking port forming portion of the cover plate portion, the mountain-fold low-strength portion is used for facilitating mountain folding of the drinking port forming inner side portion.

[0016] The lid for a beverage container of the third invention is characterized in that the low-strength portion for the mountain fold is formed by providing a perforation.

[0017] The lid for a beverage container of the fourth invention is characterized in that the low-strength portion for the fold is formed by providing a perforation, based on any one of the first to third inventions.

[0018] The lid for a beverage container of the fifth invention is characterized in that the locking portion is formed in a necked portion of a flared portion obtained by flaring an end portion of the outer periphery of the cover portion on the side of the outer portion for forming the mouth, and is capable of being locked with the rim portion of the mouth as the locking portion.

[0019] The lid for a beverage container of the sixth invention is characterized in that the locking portion is formed as a notch in an end portion of the outer periphery of the cover portion on the side of the outer portion for forming the mouth, and is capable of being locked with the rim portion of the mouth as the locking portion.

[0020] The lid for a beverage container of the seventh invention is characterized in that a plurality of locking portions are provided, based on any one of the first to sixth inventions.

[0021] The lid for a beverage container of the eighth invention is characterized in that the line portion for forming the mouth is composed of a cut-in line portion, and the outer portion for forming the mouth and the cover portion around the outer portion for forming the mouth are connected by one or more connecting portions.

[0022] The lid for a beverage container of the ninth invention is characterized in that the lid for a beverage container is made of paper, based on any one of the first to eighth inventions.

[0023] The method for forming a mouth of a lid for a beverage container of the tenth invention is characterized in that the method for forming a mouth of a lid for a beverage container of any one of the first to ninth inventions forms the mouth by the following steps: pressing the portion for forming the mouth from above with a finger; folding the outer portion for forming the mouth and the inner portion for forming the mouth of the portion for forming the mouth in a valley fold with a finger, and raising the outer portion for forming the mouth in a mountain fold; and locking the locking portion of the outer periphery of the outer portion for forming the mouth in the locking portion with a finger.

[0024] The beverage container of the eleventh invention is characterized in that the beverage container has the lid for a beverage container of any one of the first to ninth inventions.

[0025] The beverage container of the 12th application is characterized in that the beverage container is paper, based on the 11th application.

[0026] Inventive Effects

[0027] According to the present application configured by the above structure, it is possible to form a drinking opening through which a beverage is easily drinkable even if the straw is removed and the lid for a beverage container is not removed. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is an exploded perspective view of a beverage container according to an embodiment of the present application.

[0029] Figure 2 (a) and Figure 2 (b) of FIG. 6 are explanatory diagrams that sequentially show a method of forming a drinking opening of a lid for a beverage container according to an embodiment of the present application.

[0030] Figure 3 (a) and Figure 3 (b) of FIG. 7 are explanatory diagrams that sequentially show a method of forming a drinking opening of a lid for a beverage container according to an embodiment of the present application.

[0031] Figure 4 (a) and Figure 4 (b) of FIG. 8 are explanatory diagrams that sequentially show a method of forming a drinking opening of a lid for a beverage container according to an embodiment of the present application.

[0032] Figure 5 is an explanatory diagram that illustrates a design condition of a lid for a beverage container according to an embodiment of the present application.

[0033] Figure 6 (a) and Figure 6 (b) of FIG. 10 are explanatory diagrams that illustrate a design condition of a lid for a beverage container according to an embodiment of the present application.

[0034] Figure 7 (a) to Figure 7 (f) of FIG. 11 are explanatory diagrams that respectively show main parts of a lid for a beverage container according to Embodiment 1 of the present application.

[0035] Figure 8 (a) to Figure 8 (f) of FIG. 12 are explanatory diagrams that respectively show main parts of a lid for a beverage container according to Embodiment 2 of the present application. DETAILED DESCRIPTION

[0036] Hereinafter, embodiments exemplified by application of the present application will be described with reference to the accompanying drawings.

[0037] [Embodiments]

[0038] First, a case in which a lid for a beverage container according to the present application is applied to a beverage container will be described. Figure 1The beverage container 2 according to an embodiment of the present invention will be described. Figure 1 This is an exploded perspective view of the beverage container 2 according to an embodiment of the present invention.

[0039] like Figure 1 As shown, the beverage container 2 of the embodiment of the present invention is made of paper and has an opening 3 with a rim 3a on its upper part. It is a bottomed cylindrical paper cup that is mostly used to store beverages 6 such as juice or coffee for sale.

[0040] Furthermore, the beverage container 2 is not limited to paper and can also be made of other materials such as plastic. Moreover, when the beverage container 2 is made of plastic, environmentally friendly biodegradable plastics can be used.

[0041] Furthermore, the beverage container 2 is used for the purpose of selling beverages 6 by sealing the opening 3 with the beverage container lid 1.

[0042] The beverage container lid 1 is made of paper and has: a disc-shaped cover portion 4 that covers the opening portion 3 of the beverage container 2; and a side peripheral portion 5 that is provided on the outer periphery of the cover portion 4 and can engage with the edge portion 3a of the opening portion 3 of the beverage container 2 when the cover portion 4 covers the opening portion 3 of the beverage container 2.

[0043] Furthermore, the beverage container lid 1 is not limited to paper; it can also be made of other materials such as plastic. Moreover, when the beverage container lid 1 is made of plastic, environmentally friendly biodegradable plastics can be used.

[0044] A drinking spout forming line 11 for forming a drinking spout 110 is provided on the periphery side of the cover plate 4. The drinking spout forming line 11 is shaped like the periphery side of the drinking spout 110 and is composed of a roughly U-shaped cutting line 12 and connecting parts 11a and 11b (see also...). Figure 4 Alternatively, the line portion 11 for forming the drinking spout can be implemented as follows: instead of the cutting line portion, a perforation is provided or the thickness is reduced, thereby providing a low-strength portion with lower strength than the general portion of the cover plate portion 4.

[0045] Furthermore, a low-strength folding section 13 with a lower strength than the general section of the cover plate 4 is provided. This low-strength folding section 13 facilitates the valley-fold-based folding between the outer drinking portion 11A and the inner drinking portion 11B of the cover plate 4 on the outer periphery side of the cover plate 4 and the inner drinking portion 11B on the inner side of the cover plate 4 when the drinking portion 11A and the drinking portion 11B surrounded by the drinking portion forming line section 11 of the cover plate 4 are pressed in from above.

[0046] Specifically, the low-strength portion 13 for folding is formed by providing perforations. Alternatively, this low-strength portion 13 for folding can also be implemented by reducing its thickness, etc.

[0047] Furthermore, a low-strength part 14 for folding is provided between the inner end of the mouth-forming line 11 of the inner portion 11B of the cover plate portion 4 and the inner end of the mouth-forming line 11. The strength of the low-strength part 14 for folding is lower than that of the general portion of the cover plate portion 4. This low-strength part 14 for folding makes it easier to fold the mouth-forming inner portion 11B.

[0048] Specifically, the low-strength section 14 for mountain-folding is formed by providing perforations. Alternatively, the low-strength section 14 for mountain-folding can be provided by reducing the thickness by providing grid lines, or it can be implemented without providing the low-strength section 14 for mountain-folding.

[0049] Furthermore, it is provided with a locking part 11c around the periphery of the outer part 11A of the mouthpiece forming, which is raised by being folded and thus folded with the inner part 11B of the mouthpiece forming, and a locking part that can engage with the locking part 11c.

[0050] Specifically, the locking part 11c is formed in the narrowed portion of the expanded portion obtained by generally elliptical expansion of the end of the cover plate part 4 on the outer periphery side of the outer part 11A for forming the drinking spout, and can be engaged with the edge of the drinking spout 110 as the locking part (see also...). Figure 4 ).

[0051] Furthermore, the outer side portion 11A for forming the drinking spout is connected to the surrounding cover portion 4 via left and right connecting portions 11a and upper connecting portion 11b, preventing the outer side portion 11A and the inner side portion 11B for forming the drinking spout from sinking due to their own weight. The number and position of these connecting portions 11a and 11b are not limited to this.

[0052] Next, use Figures 2-4 The method for forming the drinking spout of a beverage container cap according to an embodiment of the present invention will be described. Figures 2-4 This is an explanatory diagram showing the method for forming the drinking spout of a beverage container cap according to an embodiment of the present invention.

[0053] First, such as Figure 2 (a) and Figure 2 (b) Figure 3 (a) and Figure 3 As shown in (b), when the inner portion 11B of the mouthpiece forming is pressed in from above by a finger F1 such as the thumb or index finger, a valley fold is formed between the outer portion 11A of the mouthpiece forming and the inner portion 11B of the mouthpiece forming at the part of the low strength portion 13 for folding.

[0054] Furthermore, when the outer portion 11A of the mouthpiece forming is pressed into the inner side of the cover plate portion 4 with a finger F1 such as the thumb or index finger, the inner portion 11B of the mouthpiece forming is further folded, and the outer portion 11A of the mouthpiece forming is further folded and raised in the part of the low strength portion 14 of the folding.

[0055] Then, as Figure 4 (a) and Figure 4 As shown in (b), when the outer part 11A for forming the drinking spout is pressed into the inner side of the cover plate part 4 by the thumb or index finger F1, the outer part 11A for forming the drinking spout and the inner part 11B for forming the drinking spout are folded together, and the locking part 11c of the outer part 11A for forming the drinking spout engages with the edge of the drinking spout 110, which is the locking part, to form the drinking spout 110.

[0056] Next, use Figure 5 and Figure 6 The design conditions for the beverage container lid 1 according to an embodiment of the present invention will be explained. Figure 5 and Figure 6 This is an explanatory diagram illustrating the design conditions of a beverage container lid 1 according to an embodiment of the present invention.

[0057] Here, in Figure 5 and Figure 6 In the illustrated beverage container lid 1, A is the width of the connecting portion 11b, B is the width of the connecting portion 11a, C is the interval between the perforations of the low-strength folding portion 13 and the low-strength folding portion 14, D is the interval between the ends of the perforations of the low-strength folding portion 13 and the low-strength folding portion 14 and the cutting line portion 12 of the drinking spout forming line, E is the distance between the low-strength folding portion 13 and the low-strength folding portion 14, and F is the distance between the low-strength folding portion 13 and the locking portion 11c.

[0058] exist Figure 5 and Figure 6 In the beverage container lid 1 shown in (a), for example, when A is set to 0.5mm, B to 0.75mm, C to 0.5mm, D to 3mm, E to 8mm, and F to 8mm, the function is satisfied.

[0059] In contrast, Figure 6 In the beverage container lid 1 shown in (b), E < F. Thus, although the function can be satisfied even when E < F, it is important to meet the following conditions in order to engage the locking part 11c with the edge of the drinking spout 110, which is the locking part.

[0060] For example, in Figure 6In (b) of FIG. 6, when E is set to 15 mm, F = 1.13E, F = 16.9 mm, and when the lid 1 is folded, although 2 mm or so is added, the thickness of the cover portion 4 and the like are taken into consideration, the locking portion 11c can be engaged with the edge portion of the drinking opening 110 as the engaging portion, and the function is satisfied.

[0061] That is, when the thickness of the cover portion 4 is set to X, as long as the formula X ≤ F - E ≤ 2 (unit: mm) is satisfied, in the case of E < F, the function can also be satisfied. In this case, it is more preferable that the formula (A range) 0.5 ≤ A < 1.0 (unit: mm) and the formula (C setting) A ≥ C are also satisfied.

[0062] Of course, the design conditions of the beverage container lid 1 are merely examples, and various designs can be implemented.

[0063] According to the embodiment of the present application described above, since the above-described structure, the straw can be eliminated, and even if the beverage container lid 1 is not removed, the drinking opening 110 that is easy to drink the beverage 6 can be formed.

[0064] Further, in the embodiment of the present application, the beverage container lid 1 and the beverage container 2 are both made of paper, and thus, in addition to the adhesive and the like used, it is possible to substantially completely eliminate plastic.

[0065] Further, according to the drinking opening forming method of the beverage container lid according to the embodiment of the present application, the drinking opening 110 of the beverage container lid 1 can be easily formed by the above-described simple process.

[0066] [Example 1]

[0067] Next, the beverage container lid 1 of Example 1 of the present application will be described using Figure 7 (a) to Figure 7 (f) of FIG. 7. Figure 7 (a) to Figure 7 (f) of FIG. 7 are explanatory diagrams each showing a main portion of the beverage container lid 1 of Example 1 of the present application.

[0068] The beverage container lid 1 of Example 1 of the present application differs from the beverage container lid 1 of the above-described embodiment mainly in that the shape of the end portion of the cover portion 4 outer periphery edge side of the outer portion 11A side portion for forming a drinking opening is different, and thus, mainly this point will be described, the same reference numerals are attached to the same structures, and the description will be omitted.

[0069] In this beverage container lid 1, as in Figure 7 (a) to Figure 7As shown in (f), the shape of the end of the outer periphery of the cover portion 4 on the outer side of the outer part 11A for forming the drinking spout is not elliptical, which is different from the beverage container cap 1 of the embodiment.

[0070] Specifically, as follows.

[0071] exist Figure 7 In the beverage container cap 1 shown in (a), the shape of the end of the outer periphery side of the cover portion 4 on the outer side of the drinking spout forming outer part 11A is rectangular.

[0072] exist Figure 7 In the beverage container lid 1 shown in (b), the outer periphery of the cover portion 4 on the outer side of the outer part 11A for forming the drinking spout is a rectangular shape with chamfered corners.

[0073] exist Figure 7 In the beverage container cap 1 shown in (c), the outer peripheral edge of the cover portion 4 on the outer side of the outer part 11A for forming the drinking spout is shaped as a cone extending toward the front end.

[0074] exist Figure 7 In the beverage container cap 1 shown in (d), the outer side portion 11A for forming the drinking spout has an overall shape including the end of the outer peripheral side of the cover portion 4, which is tapered and extends toward the front end. Furthermore, the locking portion 11c is formed as a cutout.

[0075] exist Figure 7 In the beverage container cap 1 shown in (e), the shape of the end of the outer peripheral edge of the cover portion 4 on the outer side of the outer part 11A for forming the drinking spout is an arrowhead shape pointing towards the front end.

[0076] exist Figure 7 In the beverage container cap 1 shown in (f), the shape of the end of the outer peripheral edge of the cover portion 4 of the outer part 11A for forming the drinking spout is an arrowhead shape with a flat front end.

[0077] [Example 2]

[0078] Next, use Figure 8 (a)~ Figure 8 (f) will describe the beverage container lid 1 of Embodiment 2 of the present invention. Figure 8 (a)~ Figure 8 (f) is an explanatory diagram showing the main parts of the beverage container lid 1 of Embodiment 2 of the present invention.

[0079] The main difference between the beverage container cap 1 of Embodiment 2 of the present invention and the beverage container cap 1 of Embodiment 1 is that the number of locking parts 11a is different. Therefore, this point will be the main focus of the explanation. The same reference numerals will be used for the same structures, and the explanation will be omitted.

[0080] In the beverage container cap 1 of this embodiment 2, as shown in Figure 8 (a) to (f) of FIG. 1, the right side of the cap 1 is not provided with the locking portion 11a, and the shape of the outer side portion 11A for forming a drinking opening is substantially L-shaped. This is different from the beverage container cap 1 of embodiment 1. Figure 8

[0081] The above describes the embodiments of the present application, but the embodiments are provided as examples and are not intended to limit the scope of the application. The new embodiments can be implemented in other various ways, and various omissions, substitutions, and changes can be made without departing from the scope of the application. The embodiments and modifications thereof are included in the scope and spirit of the application, and are included in the scope of the application and equivalents thereof recited in the claims.

[0082] Explanation of Reference Numerals

[0083] 1: beverage container cap; 11: line portion for forming a drinking opening; 11A: outer side portion for forming a drinking opening; 11B: inner side portion for forming a drinking opening; 11a, 11b: connecting portion; 11c: locking portion; 12: cut-in line portion; 13: low-strength portion for folding; 14: low-strength portion for mountain folding; 2: beverage container; 3: opening portion; 3a: edge portion of the opening portion; 4: cover plate portion; 5: side peripheral portion; 6: beverage; F1: finger.​

Claims

1. A lid for a beverage container, comprising: a cover plate portion covering an opening portion of a beverage container; and a side peripheral portion provided to an outer periphery of the cover plate portion, capable of engaging with a rim portion of the opening portion of the beverage container when the cover plate portion covers the opening portion of the beverage container, characterized in that the lid for the beverage container comprises: a drinking opening forming line portion provided to a periphery side of the cover plate portion, for forming a drinking opening, the drinking opening forming line portion being a shape of the periphery side of the drinking opening, and being composed of a low strength portion having a lower strength than a general portion of the cover plate portion; a folding low strength portion having a lower strength than the general portion of the cover plate portion, the folding low strength portion being for facilitating folding based on valley folding between a drinking opening forming outer side portion of the cover plate portion periphery side of the drinking opening forming portion surrounded by the drinking opening forming line portion and a drinking opening forming inner side portion of the cover plate portion inner side when the drinking opening forming portion is pressed from above; and an engaging portion capable of engaging with the drinking opening forming outer side portion periphery when the drinking opening forming outer side portion is raised in a state where the drinking opening forming inner side portion is mountain folded and the drinking opening forming outer side portion is valley folded, and the drinking opening forming outer side portion is folded with the drinking opening forming inner side portion, the engaging portion being formed in a necked portion of a flared portion obtained by flaring an end portion of the cover plate portion periphery side of the drinking opening forming outer side portion side, and being capable of engaging with the rim portion of the drinking opening as the engaging portion.

2. The lid for the beverage container according to claim 1, characterized in that a mountain folding low strength portion having a lower strength than the general portion of the cover plate portion is provided between inner end portions of the drinking opening forming line portion of the drinking opening forming portion of the cover plate portion, the mountain folding low strength portion being for facilitating mountain folding of the drinking opening forming inner side portion.

3. The lid for the beverage container according to claim 2, characterized in that the mountain folding low strength portion is formed by providing a perforation.

4. The lid for the beverage container according to any one of claims 1 to 3, characterized in that the folding low strength portion is formed by providing a perforation.

5. The lid for the beverage container according to any one of claims 1 to 3, characterized in that the engaging portion is formed as a notch in an end portion of the cover plate portion periphery side of the drinking opening forming outer side portion side, and is capable of engaging with the rim portion of the drinking opening as the engaging portion.

6. The lid for the beverage container according to any one of claims 1 to 3, characterized in that the engaging portion is provided in plural.

7. The lid for the beverage container according to any one of claims 1 to 3, characterized in that the drinking opening forming line portion is composed of a cut-in line portion, and the drinking opening forming outer side portion side and the cover plate portion around the drinking opening forming outer side portion side are connected by one or more connecting portions.

8. The lid for the beverage container according to any one of claims 1 to 3, characterized in that the lid for the beverage container is paper-made. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 9. A drink port forming method of a lid for a beverage container, the lid for a beverage container being the lid for a beverage container according to any one of claims 1 to 8, characterized in that, the drink port forming method of the lid for a beverage container forms the drink port by the following steps: pressing the drink port forming site into the lid for a beverage container from above with a finger; folding the drink port forming site by valley-folding the drink port forming outer site and the drink port forming inner site with a finger, and raising the drink port forming outer site by mountain-folding the drink port forming outer site; and engaging the engaging portion of the drink port forming outer site periphery with the engaging portion with a finger.

10. A beverage container characterized in that, the beverage container has the lid for a beverage container according to any one of claims 1 to 8.

11. The beverage container according to claim 10, characterized in that, the beverage container is paper-made.

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