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

Abstract

To provide a beverage container lid that can form a drink port facilitating drinking a beverage even without removing the beverage container lid by eliminating a straw.SOLUTION: A beverage container lid 1 which comprises a covering plate part 4 for covering an opening 3 of a beverage container 2, and a side peripheral part 5 capable of being engaged with an edge portion 3a of the opening 3 includes: a drink port forming notch line part 11 having a shape on a peripheral edge side of a drink port 110 at a peripheral edge side of the covering plate part 4; a drink port opening notch line part 12 on an inner side than the drink port forming notch line part 11; a stress transmission part 15 for transmitting stress when a drink port opening portion 12A surrounded by the drink port opening notch line part 12, between the drink port forming notch line part 11 and the drink port opening notch line part 12 is pushed from above, and lifting up a drink port forming portion 11A surrounded by the drink port forming notch line part 11; and an engaging part 13 to be engaged with an engaging part 11a in the periphery of the drink port forming portion 11A in a state of being lifted up and folded inside the covering plate part 4.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a lid for a beverage container that covers an opening of a beverage container, a method for forming a drinking spout of the lid for a beverage container, and a beverage container equipped with the lid for a beverage container. [Background technology]

[0002] Traditionally, many beverage retailers, such as fast food restaurants and convenience stores, have sold beverage containers, such as plastic (synthetic resin) or paper cups, with beverage container lids that cover the openings to prevent the juice, coffee, or other beverages contained inside from spilling out of the opening when the containers are carried.

[0003] To drink the beverage contained inside the beverage container, one can simply remove the beverage container lid and drink from the opening, but when the beverage container lid is removed, the beverage that has adhered to the inside of the lid may splash out, potentially staining the drinker's clothes, etc.

[0004] For this reason, it is becoming common to provide a straw insertion portion on a lid for a beverage container, into which an attached straw can be inserted to make it easier to drink the beverage inside the beverage container (see Patent Document 1, etc.).

[0005] However, in recent years, triggered by issues such as marine pollution caused by plastic waste, there has been a growing global movement to move away from plastic, and as part of this, there is also a growing movement to eliminate plastic straws.

[0006] Under these circumstances, there is a demand in the market for a lid for a beverage container that does not require a straw and can form a drinking spout that makes it easy to drink a beverage without having to remove the lid for the beverage container. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2021-14286 A Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention has been devised in consideration of the above-mentioned background, and its object is to provide a lid for a beverage container that eliminates the need for a straw and forms a drinking spout that makes it easy to drink from a beverage without removing the lid, a method for forming a drinking spout on this lid for a beverage container, and a beverage container equipped with this lid for a beverage container. [Means for solving the problem]

[0009] In order to solve the above-mentioned problems, the inventors have provided a lid for a beverage container, the lid comprising a cover plate portion for covering an opening of a beverage container, and a side peripheral portion provided on the outer periphery of the cover plate portion and capable of engaging with the edge of the opening of the beverage container when the cover plate portion is adapted to cover the opening of the beverage container, the lid further comprising a drinking spout forming low-strength portion provided on the peripheral side of the cover plate portion and having a shape of the peripheral side of the drinking spout for forming a drinking spout, the drinking spout forming low-strength portion having a strength lower than that of a drinking spout opening cut line portion or a general portion of the cover plate portion, the drinking spout forming low-strength portion being provided on the inner side of the drinking spout forming cut line portion or the drinking spout forming low-strength portion of the cover plate portion and having a strength lower than that of a drinking spout opening cut line portion or a general portion of the cover plate portion for opening the drinking spout. We have invented a lid for a beverage container comprising: a low-strength portion for opening the drinking spout which is weaker than the other portion; a stress transmission portion which is provided between the drinking spout-forming cut line portion or the low-strength portion for opening the drinking spout of the covering plate portion and the drinking spout-forming cut line portion or the low-strength portion for opening the drinking spout, and which transmits the stress caused by the pressing when the drinking spout-opening portion surrounded by the drinking spout-forming cut line portion or the low-strength portion for opening the drinking spout is pressed in from above, thereby lifting up the drinking spout-forming portion surrounded by the drinking spout-forming cut line portion or the low-strength portion for opening the drinking spout of the covering plate portion; and an engagement portion which can engage with a locking portion on the periphery of the drinking spout-forming portion when it is lifted and folded inside the covering plate portion.

[0010] The lid for a beverage container according to the first invention is a lid for a beverage container comprising a cover plate portion for covering an opening of a beverage container, and a side peripheral portion provided on the outer periphery of the cover plate portion and capable of engaging with the edge of the opening of the beverage container when the cover plate portion is adapted to cover the opening of the beverage container, the lid further comprising a drinking spout forming cut line portion or a drinking spout forming low strength portion having a lower strength than a general portion of the cover plate portion, the drinking spout forming cut line portion being shaped on the outer periphery side of the cover plate portion for forming a drinking spout, and a drinking spout opening cut line portion or a part of the cover plate portion being provided on the inner side of the drinking spout forming cut line portion or the drinking spout forming low strength portion of the cover plate portion for opening the drinking spout. a low-strength portion for opening the drinking spout having a strength lower than that of the general portion, a stress transmission portion provided between the cut line portion for forming the drinking spout or the low-strength portion for opening the drinking spout of the cover plate portion and the cut line portion for opening the drinking spout or the low-strength portion for opening the drinking spout, for transmitting the stress caused by the pressing when the drinking spout opening portion surrounded by the cut line portion for opening the drinking spout or the low-strength portion for opening the drinking spout is pressed from above, and for lifting up the drinking spout forming portion surrounded by the cut line portion for forming the drinking spout or the low-strength portion for opening the drinking spout of the cover plate portion, and an engagement portion capable of engaging with a locking portion on the periphery of the drinking spout forming portion in a state where the drinking spout is raised and further folded inside the cover plate portion; A folding low-strength portion having a lower strength than the general portion of the cover plate portion is provided between the inner end portions of the cut line portion for forming the drinking spout or the low-strength portion for forming the drinking spout of the cover plate portion to facilitate folding of the raised portion for forming the drinking spout. The opening cut line portion for opening the drinking spout or the low strength portion for opening the drinking spout and the engagement portion are provided separately, The width between the cut line portion for forming the drinking spout or the low strength portion for forming the drinking spout and the cut line portion for opening the drinking spout or the low strength portion for opening the drinking spout in the stress transmission portion is 3 mm or more, and when the distance between the inside of the cover plate portion of the cut line portion for opening the drinking spout or the low strength portion for opening the drinking spout and the engagement portion is A, the distance between the inside of the cut line portion for opening the drinking spout or the low strength portion for opening the drinking spout and the folding low strength portion is B, and the distance between the folding low strength portion and the peripheral side of the cover plate portion of the cut line portion for forming the drinking spout or the low strength portion for forming the drinking spout is C, A+B≦C. It is characterized by:

[0011] The lid for a beverage container according to the second invention is characterized in that, in the first invention, the engagement portion is a cut line portion for inserting the engagement portion of the drinking spout forming portion into which the engagement portion can be inserted.

[0012] The lid for a beverage container according to the third invention is characterized in that in the first or second invention, the low strength portion for folding is formed by providing perforations.

[0013] The lid for a beverage container according to a fourth aspect of the present invention is characterized in that in the first to third aspects of the present invention, a plurality of the locking portions are provided.

[0016] The lid for a beverage container according to a fifth aspect of the present invention is any one of the first to fourth aspects of the present invention, characterized in that the lid for a beverage container is made of paper.

[0017] The method for forming a drinking spout on a lid for a beverage container according to the sixth invention is a method for forming a drinking spout on a lid for a beverage container according to any of the first to fifth inventions, characterized in that the drinking spout is formed by the steps of: pushing the drinking spout opening portion from above with a finger; folding the raised drinking spout forming portion toward the inside of the cover plate portion with a finger; and engaging the locking portion on the periphery of the drinking spout forming portion with the engaging portion with a finger.

[0018] A beverage container according to a seventh aspect of the present invention is characterized in that it includes a beverage container lid according to any one of the first to fifth aspects of the present invention.

[0019] The beverage container according to an eighth aspect of the present invention is the beverage container according to the seventh aspect, characterized in that the beverage container is made of paper. Effect of the Invention

[0021] According to the present invention having the above-mentioned configuration, a drinking spout that makes it easy to drink a beverage can be formed without using a straw and without removing the lid for the beverage container. [Brief description of the drawings]

[0022] [Figure 1] FIG. 1 is an exploded perspective view of a beverage container according to an embodiment of the present invention. [Diagram 2] 2(a) and 2(b) are explanatory views showing a step-by-step method for forming a drinking spout of a lid for a beverage container according to an embodiment of the present invention. [Diagram 3] 3(a) and 3(b) are explanatory views showing a step-by-step method for forming a drinking spout of a lid for a beverage container according to an embodiment of the present invention. [Figure 4] 4(a) and 4(b) are explanatory views showing a step-by-step method for forming a drinking spout of a lid for a beverage container according to an embodiment of the present invention. [Diagram 5] FIG. 5 is an explanatory diagram illustrating design conditions for a lid for a beverage container according to an embodiment of the present invention. [Figure 6] 6(a) to 6(f) are explanatory views showing the main parts of the lid for a beverage container according to the first embodiment of the present invention. [Figure 7] 7(a) to 7(f) are explanatory views showing main parts of a lid for a beverage container according to a second embodiment of the present invention. [Figure 8] 8(a) to 8(f) are explanatory views showing main parts of a lid for a beverage container according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0024] [Embodiment] First, a beverage container 2 according to an embodiment of the present invention will be described with reference to Fig. 1. Fig. 1 is an exploded perspective view of the beverage container 2 according to an embodiment of the present invention.

[0025] As shown in FIG. 1, a beverage container 2 according to an embodiment of the present invention is made of paper, has an opening 3 with a rim 3a at its upper portion, and is a cylindrical paper cup with a bottom that is often used for storing and selling beverages 6 such as juice or coffee.

[0026] The beverage container 2 is not limited to being made of paper, and may be made of other materials such as plastic. In addition, when the beverage container 2 is made of plastic, an environmentally friendly biodegradable plastic may be used.

[0027] The beverage container 2 is used for the purpose of selling the beverage 6 by closing the opening 3 with the beverage container lid 1.

[0028] The lid 1 for a beverage container is made of paper and has a disk-shaped cover plate portion 4 that covers the opening 3 of the beverage container 2, and a side peripheral portion 5 that is provided on the outer peripheral edge of the cover plate portion 4 and can engage with the edge portion 3a of the opening 3 of the beverage container 2 when the cover plate portion 4 is adapted to cover the opening 3 of the beverage container 2.

[0029] The beverage container lid 1 is not limited to being made of paper, and may be made of other materials such as plastic. In addition, when the beverage container lid 1 is made of plastic, an environmentally friendly biodegradable plastic may be used.

[0030] The cover plate 4 has a generally U-shaped cut line portion 11 for forming the drinking spout 110 on its peripheral side (see also FIG. 4). Instead of the cut line portion 11 for forming the drinking spout, a low-strength portion for forming the drinking spout that is weaker than the general portion of the cover plate 4 may be provided by providing perforations or reducing the thickness.

[0031] Further, on the inside of the cut line portion 11 for forming the drinking spout of the cover plate portion 4, there is provided a substantially U-shaped cut line portion 12 for opening the drinking spout, the open portion of which faces the substantially U-shaped cut line portion 11 for forming the drinking spout for opening the drinking spout 110. Note that instead of this cut line portion 12 for opening the drinking spout, a low-strength portion for opening the drinking spout that is weaker than the general portion of the cover plate portion 4 may be provided by providing a perforation or reducing the thickness, for example.

[0032] In addition, a stress transmission section 15 is provided between the cut line section 11 for forming the drinking spout of the cover plate section 4 and the cut line section 12 for opening the drinking spout to transmit the stress caused when the drinking spout opening area 12A surrounded by the cut line section 12 for opening the drinking spout is pressed from above, and to lift up the drinking spout forming area 11A surrounded by the cut line section 11 for forming the drinking spout of the cover plate section 4.

[0033] In addition, an engagement portion 13 is provided that can engage with a locking portion 11a at the peripheral tip of the drinking spout forming portion 11A in the lifted and folded inside the cover plate portion 4.

[0034] Specifically, the engaging portion 13 is a cut line portion for inserting the engaging portion 11a of the drinking spout forming portion 11A into which the engaging portion 11a can be inserted. The engaging portion 13 may be a perforation.

[0035] Furthermore, a low-strength folding portion 14 having a lower strength than the general portion of the cover plate portion 4 is provided between the inner ends of the cut line portion 11 for forming the drinking spout of the cover plate portion 4 to facilitate folding of the raised drinking spout forming portion 11A.

[0036] Specifically, the folding low-strength portion 14 is formed by providing perforations. Note that the folding low-strength portion 14 may be provided by reducing the thickness by providing lines or the like, or may be implemented without providing any lines.

[0037] Next, a method for forming a drinking spout of a lid for a beverage container according to an embodiment of the present invention will be described with reference to Figures 2 to 4. Figures 2 to 4 are explanatory diagrams showing the step-by-step method for forming a drinking spout of a lid for a beverage container according to an embodiment of the present invention.

[0038] First, as shown in Figures 2(a) and 2(b), when the drinking spout opening area 12A is pressed from above with a finger F such as an index finger, stress is transmitted through the stress transmission part 15, and the drinking spout forming area 11A is lifted.

[0039] Next, as shown in Figs. 3(a) and 3(b), the raised drinking spout forming portion 11A is folded inside the cover plate portion 4 with a finger F such as a thumb.

[0040] Then, as shown in Figures 4(a) and 4(b), the drinking spout 110 is formed by inserting and engaging the locking portion 11a around the drinking spout forming portion 11A with a finger F, such as the thumb, into the engaging portion 13.

[0041] Next, the design conditions of the lid 1 for beverage containers according to the embodiment of the present invention will be described with reference to Fig. 5. Fig. 5 is an explanatory diagram illustrating the design conditions of the lid 1 for beverage containers according to the embodiment of the present invention.

[0042] Here, in the beverage container lid 1 illustrated in Figure 5, A is the distance between the inside of the cover plate portion 4 of the cut line portion 12 for opening the drinking spout and the engagement portion 13, B is the distance between the inside of the cut line portion 12 for opening the drinking spout and the low-strength portion 14 for folding, C is the distance between the low-strength portion 14 for folding and the peripheral side of the cover plate portion 4 of the cut line portion 11 for forming the drinking spout, and D is the width of the stress transmission portion 15.

[0043] D may be set arbitrarily, depending on the thickness and basis weight of the cover plate portion 4 in the lid 1 for a beverage container; however, if it is made too short, for example less than 3 mm, the drinking spout opening portion 12A may be torn when pressed from above with a finger F, such as the index finger.

[0044] Furthermore, if A+B>C, when the raised drinking spout forming portion 11A is folded toward the inside of the cover plate portion 4 with a finger F such as the thumb, the locking portion 11a of the drinking spout forming portion 11A cannot be engaged with the engagement portion 13.

[0045] Furthermore, if A+B≦C and C is made too long, for example by more than 1 mm, the lid 1 for a beverage container may be deformed when the engaging portion 11a of the drinking spout forming portion 11A is engaged with the engaging portion 13.

[0046] Therefore, when A+B≦C, if C is made longer than A+B by, for example, about 1 mm, there is little risk that the lid 1 for a beverage container will be significantly deformed when the engaging portion 11a of the drinking spout forming portion 11A is engaged with the engaging portion 13.

[0047] Of course, the design conditions of this beverage container lid 1 are merely examples, and various designs can be implemented.

[0048] According to the embodiment of the present invention described above, because of the configuration described above, it is possible to form the drinking spout 110 through which the beverage 6 can be easily drunk without using a straw and without removing the beverage container lid 1.

[0049] Moreover, in the embodiment of the present invention, since the beverage container lid 1 and the beverage container 2 are both made of paper, it is possible to eliminate the use of plastic almost completely, except for adhesives and the like that are used.

[0050] Furthermore, according to the method for forming the drinking spout of a lid for a beverage container according to the embodiment of the present invention, the drinking spout 110 of the lid for a beverage container 1 can be easily formed by the above-mentioned simple procedure.

[0051] [Example 1] Next, the lid 1 for beverage containers according to the first embodiment of the present invention will be described with reference to Fig. 6(a) to Fig. 6(f). Fig. 6(a) to Fig. 6(f) are explanatory views showing main parts of the lid 1 for beverage containers according to the first embodiment of the present invention.

[0052] The beverage container lid 1 of Example 1 of the present invention differs from the beverage container lid 1 of the above-mentioned embodiment mainly in that the number and position of the engagement portions 11a are different, so this point will be mainly explained, and the same components will be given the same symbols and explanations will be omitted.

[0053] This beverage container lid 1 differs from the beverage container lid 1 according to the embodiment in that two locking portions 11a are provided on the sides of the drinking spout forming portion 11A, as shown in Figures 6(a) to 6(f).

[0054] Therefore, in the beverage container lid 1 according to Example 1, the locking portion 11a can be engaged with the engagement portion 13 more securely than in the beverage container lid 1 according to the embodiment.

[0055] 6(a), 6(c), and 6(e), the engagement portion 13 is provided as a part of the spout-opening cut line portion 12. Therefore, these beverage container lids 1 can be manufactured more easily than the beverage container lid 1 according to the embodiment.

[0056] In the lid 1 for beverage containers shown in Figs. 6(a) and 6(b), two arc-shaped locking portions 11a are provided on the sides of the drinking spout forming portion 11A, extending widely from the tip end side.

[0057] In the lid 1 for beverage containers shown in Figs. 6(c) and 6(d), two small arc-shaped locking portions 11a are provided in the middle of the sides of the drinking spout forming portion 11A.

[0058] In addition, in the lid 1 for a beverage container shown in Figures 6(e) and 6(f), two tapered engagement portions 11a that widen toward the tip are provided widely from the tip side on the side of the drinking spout forming portion 11A.

[0059] [Example 2] Next, a lid 1 for beverage containers according to a second embodiment of the present invention will be described with reference to Fig. 7(a) to Fig. 7(f). Fig. 7(a) to Fig. 7(f) are explanatory views showing main parts of the lid 1 for beverage containers according to the second embodiment of the present invention.

[0060] The beverage container lid 1 of Example 2 of the present invention differs from the beverage container lid 1 of Example 1 described above mainly in that the number of engagement portions 11a is different, so this point will be mainly explained, and the same components will be given the same symbols and explanations will be omitted.

[0061] The lid 1 for a beverage container according to this embodiment 2 differs from the lid 1 for a beverage container according to embodiment 1 in that, as shown in Figures 7(a) to 7(f), there is no engagement portion 11a on the right side and the shape of the drinking spout forming portion 11A is approximately L-shaped.

[0062] [Example 3] Next, a lid 1 for beverage containers according to a third embodiment of the present invention will be described with reference to Fig. 8(a) to Fig. 8(f). Fig. 8(a) to Fig. 8(f) are explanatory views showing main parts of the lid 1 for beverage containers according to the third embodiment of the present invention.

[0063] The beverage container lid 1 of Example 3 of the present invention differs from the beverage container lid 1 of Example 1 described above mainly in that the shape of the drinking spout forming portion 11A is different, so this point will be mainly explained, and the same components will be given the same symbols and explanations will be omitted.

[0064] The lid 1 for a beverage container of this embodiment 3 differs from the lid 1 for a beverage container of embodiment 1 in that the peripheral side of the cover plate portion 4 of the drinking spout forming portion 11A is flat, as shown in Figures 8(a) to 8(f).

[0065] Although the embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0066] 1 Beverage container lid 11 Cut line for forming spout 11A Part for forming mouthpiece 11a Locking part 110 Drinking spout 12 Cutting line for opening the drinking spout 12A Part for opening the spout 13 Engagement part 14. Low strength section for folding 15 Stress transmission section 2 Beverage containers 3 Opening 3a Edge of opening 4 Cover plate part 5 Side circumference 6 Beverages F finger

Claims

1. A lid for a beverage container comprising: a cover plate portion for covering an opening of a beverage container; and a side periphery portion provided on an outer periphery of the cover plate portion and capable of engaging with an edge of the opening of the beverage container when the cover plate portion covers the opening of the beverage container, a low-strength portion for forming a drinking spout, which is provided on the peripheral side of the cover plate and has a shape of the peripheral side of the drinking spout for forming a drinking spout, and has a strength lower than that of a cut line portion for forming a drinking spout or a general portion of the cover plate; and a low-strength portion for opening a drinking spout, which is provided on the inside of the cut line portion for forming a drinking spout or the low-strength portion for forming a drinking spout, and has a strength lower than that of a cut line portion for opening a drinking spout or a general portion of the cover plate for opening the drinking spout. a stress transmission section provided between the cut line section for forming the drinking spout or the low strength section for forming the drinking spout of the cover plate and the cut line section for opening the drinking spout or the low strength section for opening the drinking spout, for transmitting the stress caused by the pressing when the drinking spout opening portion surrounded by the cut line section for opening the drinking spout or the low strength section for opening the drinking spout of the cover plate is pressed from above, and for lifting up the drinking spout forming portion surrounded by the cut line section for forming the drinking spout or the low strength section for forming the drinking spout of the cover plate; and an engaging portion that can engage with a locking portion on the periphery of the portion for forming the drinking spout when the portion is raised and folded inside the cover plate portion; A folding low-strength portion having a lower strength than the general portion of the cover plate portion is provided between the inner end portions of the cut line portion for forming the drinking spout or the low-strength portion for forming the drinking spout of the cover plate portion to facilitate folding of the raised portion for forming the drinking spout. The opening cut line portion for opening the drinking spout or the low strength portion for opening the drinking spout and the engagement portion are provided separately, The width between the drinking spout forming cut line portion or the drinking spout forming low strength portion in the stress transfer portion and the drinking spout opening cut line portion or the drinking spout opening low strength portion is 3 mm or more; The distance between the inside of the cover plate part of the opening cut line part for opening the drinking spout or the low strength part for opening the drinking spout and the engagement part is A, The distance between the inside of the opening cut line portion for opening the drinking spout or the low strength portion for opening the drinking spout and the low strength portion for folding is B, When the distance between the folding low strength portion and the cutting line portion for forming the drinking spout or the peripheral side of the cover plate portion of the low strength portion for forming the drinking spout is C, A+B≦C A lid for a beverage container, comprising:

2. The engaging portion is a cut line portion into which the engaging portion of the drinking spout forming portion can be inserted.

2. The lid for a beverage container according to claim 1 .

3. The folding weak portion is formed by providing a perforation.

3. The lid for a beverage container according to claim 1 or 2.

4. The locking portion is provided in a plurality of portions. The lid for a beverage container according to any one of claims 1 to 3,

5. The lid for the beverage container is made of paper. The lid for a beverage container according to any one of claims 1 to 4,

6. A method for forming a drinking spout of a lid for a beverage container according to any one of claims 1 to 5, A step of pressing the drinking spout opening portion from above with a finger; A step of folding the raised portion for forming the drinking spout toward the inside of the cover plate portion with fingers; and engaging the engaging portion around the edge of the portion for forming the drinking spout with a finger, thereby forming the drinking spout. A method for forming a drinking spout on a lid for a beverage container, comprising:

7. The beverage container lid according to any one of claims 1 to 5 is provided. A beverage container characterized by:

8. The beverage container is made of paper.

8. The beverage container according to claim 7,

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