Cap for beverage container and beverage container

Abstract

When the cover is closed, even if force in the center direction is applied to the covering plate part and the width of the drinking opening is reduced, the drinking opening forming part can be lifted upwards to form the drinking opening. The present invention is characterized by being provided with: a press-in section (19) which is formed on a cover plate section (4), is surrounded by a press-in wire section (10) comprising a cut-in wire section or a low-strength section having a lower strength than a general section of the cover plate section (4), and is press-fitted downward by a finger, the press-in wire section (10) comprising a cut-in wire section or a low-strength section having a lower strength than the general section of the cover plate section (4); and a drinking mouth forming portion (20) which is formed closer to the side peripheral portion side than the press-in portion (19) in the cover plate portion (4), which is surrounded by a drinking mouth forming wire portion (11) comprising a low-strength portion or a cut-in wire portion, and which is raised upward by a reaction force generated when the press-in portion (19) is pressed downward, the drinking mouth forming portion (20) being formed in a position closer to the side peripheral portion side than the press-in portion (19), and the drinking mouth forming portion (20) being formed in a position closer to the side peripheral portion side than the press-in portion (19), the drinking mouth forming wire portion (11) being surrounded by the low-strength portion or the cut-in wire portion (11). A diameter-reducing starting wire (5) formed by the low-strength part or the cut-in wire part is extended from the inner side to the side peripheral part side.

Description

TECHNICAL FIELD

[0001] The present application relates to a beverage container lid covering an opening of a beverage container and a beverage container having the same. BACKGROUND

[0002] In the past, in many beverage sales stores such as fast food restaurants and convenience stores, an opening of a beverage container such as a plastic (synthetic resin) or paper cup is covered with a beverage container lid, and the beverage such as juice or coffee contained in the inside of the beverage container is sold in a manner that it is not easily spilled from the opening during transportation.

[0003] In particular, in recent years, a beverage container lid that eliminates a straw and enables a drink to be easily drunk even without detaching the beverage container lid has been required. Therefore, a push-down type in which a drink opening is formed by folding a portion of the beverage container lid provided with a drink opening forming portion has also been proposed.

[0004] However, the push-down type is a type in which a two-step opening action is forced on a consumer in order to form a drink opening, and thus has a problem in that the consumer cannot intuitively understand the method of forming a drink opening. Therefore, a beverage container lid that enables a drink opening to be formed in one step by simplifying the opening action itself so that the consumer can intuitively understand the method of forming a drink opening has been desired.

[0005] Therefore, in Patent Document 1, a beverage container lid 1 (refer to claim 1 of the claims of Patent Document 1, paragraphs

[0024] to

[0036] of the specification, and FIGS. 1 to 3 of the drawings Figures 2-4 and the like) is proposed, which is formed with a drink opening (drink opening 110) composed of a drink opening opening portion 12A as a press-in portion that is demarcated by a linear perforation (folding low-strength portion 14) and a drink opening forming portion 11A, the drink opening opening portion 12A is pressed down with a finger, and the drink opening forming portion 11A is lifted up by a reaction force thereof, thereby forming a drink opening of a seesaw type (push-up type) in which the drink opening is opened.

[0006] The drink opening of the seesaw type like the beverage container lid described in Patent Document 1 can be opened by only one step of pressing down the press-in portion with a finger, and thus the consumer can easily intuitively understand the method of forming a drink opening, and has an advantage that the drink opening can be immediately opened even without using a book.

[0007] PRIOR ART DOCUMENTS

[0008] PATENT DOCUMENTS

[0009] Patent Document 1: Japanese Patent Application Publication No. 2023-6268 SUMMARY

[0010] PROBLEMS TO BE SOLVED BY THE INVENTION

[0011] In the technology disclosed in such patent document 1, such as Figure 12 As shown in (a), a side peripheral portion 71 is provided around the periphery of the cover portion 70. When the lid is closed, the cover portion 70 covers the opening of the beverage container, causing the side peripheral portion 71 to engage with the edge of the opening. At this time, the side peripheral portion 71 mostly applies some load as it engages with the edge of the beverage container. Therefore, when the lid is closed, the cover portion 70 adjusts according to the load of the side peripheral portion 71, such as... Figure 12 A force is applied toward the center, as shown by the arrow in (a).

[0012] In this case, due to the force applied in the central direction of the cover plate portion 70, the drinking spout 72, which is arguably the weakest part of the cover plate portion 70, flexes by being pressed and contracted from the periphery, thus reducing the width of the drinking spout 72 itself. In this case, as... Figure 12 As shown in (b), the mouthpiece forming part 75 enters the lower side of the narrowed mouthpiece 72 and is locked to the back of the cover plate part 70, which presents a problem that makes it difficult to lift it upward.

[0013] Therefore, the present invention was made in view of the above-mentioned problems, and its object is to provide a beverage container lid and a beverage container having the beverage container lid, which can lift the drinking spout forming part upward to form a drinking spout even when a force in the central direction is applied to the cover plate portion when the lid is closed, thereby reducing the width of the drinking spout itself.

[0014] Methods for solving problems

[0015] The first invention is a beverage container cap, comprising: a cover portion that covers the opening of a beverage container; and a side peripheral portion disposed on the outer periphery of the cover portion, wherein the side peripheral portion can engage with the edge of the opening of the beverage container when the cover portion covers the opening of the beverage container. The cap is characterized by having: a pressing portion formed in the cover portion and surrounded by a pressing line portion, which is pressed downwards by a finger; the pressing line portion being composed of a cutting line portion or a low-strength portion with a lower strength than the general portion of the cover portion; and a mouthpiece forming portion formed in the cover portion at a position closer to the side peripheral portion than the pressing portion, surrounded by a mouthpiece forming line portion composed of the low-strength portion or the cutting line portion, which is lifted upwards by the reaction force of the pressing portion being pressed downwards; and in the mouthpiece forming portion, a tapered line composed of the low-strength portion or the cutting line portion extends from the inside toward the side peripheral portion.

[0016] The second invention for a beverage container lid is characterized in that, in the first invention, the mouthpiece end, which is the end of the mouthpiece forming line surrounding the mouthpiece forming portion, and the press-in end, which is the end of the press-in line surrounding the press-in portion, are separated from each other. The boundary between the mouthpiece forming portion and the press-in portion is divided by a dividing line formed by the low-strength portion or the cutting line portion. An engaging portion that can engage with the periphery of the mouthpiece forming portion that is folded back through the dividing line is formed at a position closer to the inside of the press-in portion.

[0017] The third invention is characterized in that, in the first or second invention, the aforementioned tapering line extends in a straight line from the inside toward the peripheral side at approximately the center of the mouthpiece forming portion.

[0018] The fourth invention for a beverage container lid is characterized in that, in the second invention, the aforementioned tapering line extends toward the side periphery from a position inside the dividing line portion.

[0019] The fifth invention is characterized in that, in the first or fourth invention, the aforementioned tapered line has a baseline extending from the inside toward the side periphery and one or more branch lines branching laterally from the aforementioned baseline.

[0020] The sixth invention is characterized in that, in the first or second invention, the aforementioned tapered lines are formed in multiple ways.

[0021] The seventh invention is a beverage container, characterized in that the beverage container has a container body and a beverage container lid of any one of the first to sixth inventions.

[0022] Invention Effects

[0023] According to the present invention with the above-described structure, by folding the mouthpiece forming portion around the diameter reduction line, the deflection width can be reduced. As a result, the mouthpiece forming portion can be easily lifted with fingers without locking it to the back of the cover portion. Therefore, according to the present invention, a mouthpiece can be easily formed in the cover portion of a beverage container cap. Attached Figure Description

[0024] Figure 1 This is an exploded perspective view of a beverage container lid and a beverage container fitted thereto according to an embodiment of the present invention.

[0025] Figure 2 This is a top view of the cover panel.

[0026] Figure 3 It is shown Figure 2 An enlarged top view showing the detailed shape of the section surrounded by dashed lines.

[0027] Figure 4 It is a diagram used to illustrate the various changes in the shape of the necking line.

[0028] Figure 5 This diagram shows an example where the starting point of the narrowing line is located on the side of the periphery, closer to the dividing line.

[0029] Figure 6 This is a diagram showing an example of forming multiple tapered lines.

[0030] Figure 7 It is a diagram showing the way a narrowing starting line is formed by a baseline extending from the inside toward the side periphery and one or more branch lines branching laterally from the baseline.

[0031] Figure 8 This is an explanatory diagram showing the first stage of the method for forming the drinking spout of a beverage container cap according to an embodiment of the present invention.

[0032] Figure 9 This is a diagram illustrating the effect of the beverage container lid according to an embodiment of the present invention.

[0033] Figure 10 This is an explanatory diagram showing the second stage of the method for forming the drinking spout of a beverage container cap according to an embodiment of the present invention.

[0034] Figure 11 This is an explanatory diagram showing the third stage of the method for forming the drinking spout of a beverage container cap according to an embodiment of the present invention.

[0035] Figure 12 It is a diagram used to illustrate the problems of existing technology. Detailed Implementation

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

[0037] First, use Figure 1 The beverage container lid 1 according to an embodiment of the present invention will be described. Figure 1 This is an exploded perspective view of a beverage container cap 1 and a beverage container 2 fitted thereto according to an embodiment of the present invention.

[0038] like Figure 1 As shown, the beverage container 2 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 and coffee and is sold therein.

[0039] Furthermore, the beverage container 2 is not limited to paper and can also be made of other materials such as plastic. Additionally, when the beverage container 2 is made of plastic, environmentally friendly biodegradable plastics can also be used.

[0040] Furthermore, the beverage container 2 is used for the purpose of selling the beverage 6 by sealing the opening 3 with the beverage container lid 1.

[0041] The beverage container lid 1 is made of paper and has: a cover plate 4, which is disc-shaped and covers the opening 3 of the beverage container 2; and a side peripheral portion 50, which is disposed on the outer periphery of the cover plate 4, and the side peripheral portion 50 can engage with the edge 3a of the opening 3 of the beverage container 2 when the cover plate 4 covers the opening 3.

[0042] Furthermore, the beverage container lid 1 is not limited to paper; it can also be made of other materials such as plastic. Additionally, when the beverage container lid 1 is made of plastic, environmentally friendly biodegradable plastics can also be used.

[0043] Figure 2 This is a top view of the cover plate part 4. Figure 3 It is shown Figure 2 An enlarged top view showing the detailed shape of the portion surrounded by dashed lines. A pressing-in line portion 10 is provided on the cover plate portion 4, consisting of a low-strength portion (lower than the general portion of the cover plate portion 4) or a cutting-in line portion. A mouthpiece forming line portion 11 for forming a drinking spout is provided on the side periphery of the pressing-in line portion 10. This mouthpiece forming line portion 11 is composed of the shape of the periphery of the drinking spout, i.e., a cutting-in line portion, or a low-strength portion (lower than the general portion of the cover plate portion).

[0044] When the press-in thread portion 10 is composed of a low-strength portion, a perforation is provided, or the thickness is reduced by means of half-cutting, etc., to create a low-strength portion with a lower strength than the general portion of the cover plate portion 4. The press-in thread portion 10 can be any shape that bulges inward from one end 10a and the other end 10b. The area surrounded by the press-in thread portion 10 is called the press-in portion 19.

[0045] When the mouth-forming line portion 11 is composed of a low-strength portion, a perforation is provided, or the thickness is reduced by means of half-cutting, etc., to create a low-strength portion with a lower strength than the general portion of the cover plate portion 4. The mouth-forming line portion 11 can be any shape that bulges outward from one end 11a and the other end 11b toward the peripheral portion. The area surrounded by the mouth-forming line portion 11 is called the mouth-forming portion 20.

[0046] In addition, such as Figure 3As shown, the premise is that one end 11a and the other end 11b of the mouth-forming thread portion 11 are arranged separately from one end 10a and the other end 10b of the pressing thread portion 10 towards the lateral periphery. That is, the pressing portion 19 surrounded by the pressing thread portion 10 is configured such that its diameter in the width direction is larger than that of the mouth-forming portion 20 surrounded by the mouth-forming thread portion 11. However, the diameters in the width direction of the pressing portion 19 and the mouth-forming portion 20 are not limited to this; they can also be configured with the same width diameter, with the mouth-forming portion 20 configured such that its diameter in the width direction is larger than that of the pressing portion 19.

[0047] Alternatively, a dividing line portion 41 may be provided on the extension line of one end 11a and the other end 11b of the mouthpiece forming line portion 11. This dividing line portion 41 is composed of a low-strength portion with a lower strength than the general portion of the cover plate portion 4, or a cutting line portion. When composed of such a low-strength portion, treatments such as perforation or reducing thickness by half-cutting are implemented. This dividing line portion 41 can be continuous from one end 11a to the other end 11b, or multiple portions can be formed discontinuously from one end 11a to the other end 11b. By providing the dividing line portion 41, the mouthpiece forming portion 20 can be configured to rotate freely around the dividing line portion 41 as a fulcrum. However, the dividing line portion 41 is not limited to being provided on the extension line of one end 11a and the other end 11b of the mouthpiece forming line portion 11; it can be formed at any location between the mouthpiece forming portion 20 and the pressing portion 19. That is, the dividing line portion 41 forms a boundary with the mouthpiece forming portion 20 and the pressing portion 19. In addition, the structure of the dividing line part 41 is not necessary and can be omitted.

[0048] Alternatively, a locking portion 13 may be formed on the cover plate portion 4 at a position closer to the inside of the pressing portion 19. This locking portion 13 can engage with the periphery of the drinking spout forming portion 20, which is folded back via the dividing line portion 41. The locking portion 13 is a cutting line portion that allows the periphery of the drinking spout forming portion 20 to be inserted. Cutting line portions 13a and 13b, which are formed by cuts perpendicular to their extension direction, may also be provided at both ends of the locking portion 13. By providing such cutting line portions 13a and 13b, the locking portion 13 can be easily expanded with fingers.

[0049] In the mouth-forming portion 20, a tapered starting line 5, composed of a low-strength portion or a cutting line portion, extends from the inside toward the peripheral portion. The starting point 5a of the tapered starting line 5 is located further inside, and its ending point 5b is located on the peripheral portion side. This tapered starting line 5 is assumed to be formed as a straight line from the starting point 5a to the ending point 5b, but it is not limited to this; it can be formed as follows: Figure 4 As shown in (a), it can be constructed in a curved shape, or as shown in Figure 4As shown in (b), it is constructed in an irregular linear shape. Furthermore, the tapered line 5 is formed approximately at the center of the mouthpiece forming portion 20, but is not limited to this; it may be formed at least at any location within the mouthpiece forming portion 20. Figure 2 In the example shown, the tapered starting line 5 is shown to be a straight line exactly on the extension line of the center O of the connecting cover plate portion 4, but it is not limited to this. It can also be separated from the extension line of the center O of the connecting cover plate portion 4, or it can be as follows. Figure 4 As shown in (c), it extends from the inside toward the side periphery in an inclined direction.

[0050] The following example illustrates the case where the tapered starting line 5 extends towards the side periphery from a position 5a closer to the inner side than the dividing line portion 41. In this case, the starting point 5a of the tapered starting line 5 can be close to the vicinity of the pressing thread portion 10, or it can be provided on the pressing thread portion 10 and intersect with it.

[0051] exist Figure 5 Regarding the tapered starting line 5, an example is shown where the starting point 5a is located on the side periphery side of the dividing line portion 41. In this manner, the tapered starting line 5, from the starting point 5a to the ending point 5b, is entirely contained within the drinking spout forming portion 20. In this case, the tapered starting line 5 can be formed in a curved shape, an irregular line shape, or it can extend in an inclined direction from the inside towards the side periphery side.

[0052] That is, in the narrowing starting line 5, regardless of whether the starting point 5a is located on the side of the dividing line 41, the ending point 5b is located at least on the side of the dividing line 41.

[0053] Additionally, the reduced diameter starting line 5 can also be as follows: Figure 6 of (a) Figure 6 As shown in (b), multiple forms are created.

[0054] Figure 7 of (a) Figure 7 (b) shows the reduced-diameter starting line 5 having a baseline 51 extending from the inside toward the lateral periphery and one or more branch lines 52 branching laterally from the baseline 51. The branch lines 52 are not, for example, extended in a direction perpendicular to the baseline 51; rather, the branch line 52a closer to the inside slopes inward, and the branch line 52b closer to the lateral periphery slopes inward. However, the angle of the branch lines 52 relative to the baseline 51 can be perpendicular to each other, or it can be any other angle.

[0055] The branching position of branch line 52 in baseline 51 can also be as follows Figure 7 As shown in (a), the position is on the lateral side of the starting point 5a and on the inner side of the ending point 5b, but it is not limited to this; it can also be as shown in (a).Figure 7 As shown in (b), the branch of branch line 52 is located at the starting point 5a and the ending point 5b.

[0056] Next, use Figures 8-10 The method for forming the drinking spout of a beverage container cap according to an embodiment of the present invention will be described. Figures 8-10 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.

[0057] First, such as Figure 8 (a) and Figure 8 As shown in (b), if the index finger or other finger F is used to press down on the drinking spout 20 from above, the stress is transmitted, and the drinking spout 20 is lifted. At this time, as Figure 9 As shown in (a), when the pressing part 19 is pressed with finger F, the constriction line 5 opens, and the drinking spout forming part 20 appears as a valley when viewed from the surface with the constriction line 5 as the center. The result is as follows: Figure 8 , Figure 9 As shown, when the pressing part 19 sinks down, and the drinking mouth forming part 20 is raised accordingly, the deflection width H of the drinking mouth forming part 20 can be further reduced.

[0058] Figure 9 (b) shows the cross-sectional shape of the mouthpiece forming part 20 just before it is lifted from the cover plate part 4. The mouthpiece forming part 20, when viewed from the surface, exhibits a valley-like fold centered on the diameter reduction line 5, resulting in a smaller deflection width H, as shown... Figure 9 As shown in the enlarged view in (b), a gap is formed between the mouth-forming line portion 11 and the cover portion 4 located at the periphery of the mouth-forming portion 20. As a result, even if the mouth-forming portion 20 is pressed downwards from the cover portion 4, it is possible to prevent the mouth-forming portion 20 from being stuck to the back of the cover portion 4.

[0059] In particular, when the lid is closed, the side portion 50 engages with the edge 3a of the opening 3 of the beverage container 2, thereby applying a force in the center direction to the cover portion 4 based on the load on the side portion 50. In this case, according to the present invention, by folding the mouthpiece forming portion 20 around the diameter reduction line 5, the deflection width H can be reduced. As a result, the mouthpiece forming portion 20 can be easily lifted with the finger F without locking it to the back of the cover portion 4.

[0060] Next, as Figure 10 (a) and Figure 10As shown in (b), the raised mouthpiece forming part 20 is folded inward toward the cover plate part 4 using the thumb or other fingers F. Since the mouthpiece forming part 20 is prevented from getting stuck on the back of the cover plate part 4, the action of lifting and folding the mouthpiece forming part 20 upward can be easily achieved.

[0061] Then, as Figure 11 (a) and Figure 11 As shown in (b), the periphery of the mouth-forming part 20 is inserted into the engaging part 13 by using the thumb or other fingers F, thereby forming the mouth 110.

[0062] At this time, as Figure 6 As shown, even when multiple tapered lines 5 are formed, the mouthpiece forming part 20 can be folded in the same way, which can prevent the mouthpiece forming part 20 from being stuck to the back of the cover plate part 4.

[0063] In addition, such as Figure 7 As shown, by introducing one or more branch lines 52 that branch laterally from the baseline 51, when the pressing part 19 is pressed in, the diameter of the drinking mouth forming part 20 can be further reduced from the inside to the side periphery, thereby preventing the drinking mouth forming part 20 from being stuck on the back of the cover part 4.

[0064] Label Explanation

[0065] 1: Lid for beverage container; 2: Beverage container; 3: Opening; 3a: Edge; 4: Cover plate; 5: Reduction line; 5a: Start point; 5b: End point; 6: Beverage; F: Finger; O: Center; 10: Press-in line; 11: Mouth-forming line; 13: Engaging part; 13a, 13b: Cut-in line; 19: Press-in part; 20: Mouth-forming part; 41: Dividing line; 50: Side perimeter; 110: Mouth-forming area.

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, the side peripheral portion being 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 press-in portion formed in the cover plate portion, surrounded by a press-in line portion, pressed downward by a finger, the press-in line portion being composed of a cut-in line portion or a low-strength portion having a lower strength than a general portion of the cover plate portion; and a drink port forming portion formed in the cover plate portion at a position closer to the side peripheral portion than the press-in portion, surrounded by a drink port forming line portion composed of the low-strength portion or the cut-in line portion, lifted upward by a reaction force when the press-in portion is pressed downward, wherein in the drink port forming portion, a reduced diameter start line composed of the low-strength portion or the cut-in line portion extends from the inside toward the side peripheral portion side.

2. The lid for the beverage container according to claim 1, characterized in that: a drink port portion end portion that is an end portion of the drink port forming line portion surrounding the drink port forming portion is separated from a press-in portion end portion that is an end portion of the press-in line portion surrounding the press-in portion, a boundary between the drink port forming portion and the press-in portion is divided by a division line portion composed of the low-strength portion or the cut-in line portion, and an engaging portion capable of engaging with a periphery of the drink port forming portion that is folded back via the division line portion is formed at a position closer to the inside than the press-in portion.

3. The lid for the beverage container according to claim 1 or 2, characterized in that: the reduced diameter start line extends in a straight line shape from the inside toward the side peripheral portion side at substantially the center of the drink port forming portion.

4. The lid for the beverage container according to claim 2, characterized in that: the reduced diameter start line extends from a position closer to the inside than the division line portion toward the side peripheral portion side.

5. The lid for the beverage container according to claim 1 or 4, characterized in that: the reduced diameter start line has a base line extending from the inside toward the side peripheral portion side and one or more branch lines branching from the base line in a lateral direction.

6. The lid for the beverage container according to claim 1 or 2, characterized in that: the reduced diameter start line is formed in a plurality.

7. A beverage container, characterized in that: the beverage container has a container main body and the lid for the beverage container according to any one of claims 1 to 6. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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