Lid for beverage container and beverage container

Abstract

To provide a lid for a beverage container capable of preventing a finger from touching a liquid surface when pushing a notch disposed on the lid for a beverage container with the finger.SOLUTION: A lid 1 for a beverage container comprises: a cover plate part 4 for covering an opening 3 of a beverage container 2; and a side peripheral part 5 disposed on an outer peripheral edge of the cover plate part 4, and engageable with a marginal portion of the opening 3 of the beverage container 2 when the cover plate part 4 covers the opening 3 of the beverage container 2. Furthermore, there are provided: a drink port formation line part 11 disposed on a peripheral edge side of the cover plate part 4, having a shape of a peripheral edge side of a drink port 110 for forming the drink port 110, and comprising a low strength part having lower strength than a notch line part or a general part of the cover plate part 4; and a hook line part 12 formed inside a drink port formation portion 20 surrounded by the drink port formation line part 11, having a swelling shape, and comprising a low strength part having lower strength than the notch line part or the general part of the cover plate part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a beverage container lid for covering an opening of the beverage container, and to a beverage container provided with such a beverage container lid. [Background technology]

[0002] Traditionally, many beverage retailers, such as fast food restaurants and convenience stores, have covered the openings of beverage containers, such as plastic (synthetic resin) or paper cups, with beverage container lids to prevent the juice, coffee, or other beverages contained inside from spilling out of the openings 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 adhering to the inside of the lid may splash out, potentially staining the drinker's clothes, etc.

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

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

[0006] In light of these circumstances, there is a demand in the market for a beverage container lid that does not require a straw and that can form a drinking spout that makes it easy to drink beverages without removing the beverage container lid. In recent years, a beverage container lid has been proposed that forms a drinking spout by pressing a finger into a notch or the like provided in the lid, but this has had the problem of the finger touching the liquid level when the liquid level in the beverage container is close to the bottom of the lid. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Patent Publication No. 2021-14286 Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention was devised in light of the above-mentioned background, and its purpose is to provide a beverage container lid and a beverage container equipped with this beverage container lid that can prevent fingers from touching the liquid surface when pressing into notches or the like provided in the beverage container lid, thereby eliminating the need for a straw and creating a drinking spout that makes it easy to drink beverages without removing the beverage container lid. [Means for solving the problem]

[0009] The lid for a beverage container according to the first invention is a lid for a beverage container comprising a cover plate portion that covers an opening of a beverage container, and a side peripheral portion that is provided on the outer periphery of the cover plate portion and can engage with the edge of the opening of the beverage container when the cover plate portion is arranged to cover the opening of the beverage container, the lid further comprising: a drinking spout forming line portion that is provided on the outer periphery of the cover plate portion and that is shaped like the outer periphery of the drinking spout, and that is made of a cut line portion or a low-strength portion that is weaker than the general portion of the cover plate portion; and a hook line portion that is formed inside the drinking spout forming area surrounded by the drinking spout forming line portion and that is shaped like a bulge, and that is made of a cut line portion or a low-strength portion that is weaker than the 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 for facilitating mountain folding between the finger insertion portion and the drinking spout forming portion when the finger insertion portion surrounded by the hook line portion is pressed from above; and a valley folding low-strength portion having a lower strength than the general portion of the cover plate portion between the inner end of the drinking spout forming line portion in the drinking spout forming portion of the cover plate for facilitating valley folding of the raised drinking spout forming portion. The present invention is characterized by comprising:

[0011] No. 2 The lid for a beverage container according to the invention is the first Clearly In the present invention, the hook line portion has a shape that bulges outward toward the peripheral edge of the drinking spout that constitutes the drinking spout-forming line portion.

[0012] No. 3 The lid for a beverage container according to the present invention is 2 In the invention, a hook formed between the drinking spout forming line and the hook line inside the drinking spout forming portion, The aforementioned The drinking spout forming portion is characterized in that it can be rotated freely using the valley fold low strength portion as a fulcrum.

[0013] No. 4 The lid for a beverage container according to the present invention is 3 The invention further comprises a retaining mechanism surrounded by the low-strength portion for valley folding and a line portion for the retaining mechanism, which is a cut line portion or a low-strength portion having a lower strength than the general portion of the cover plate portion and has a shape that bulges toward the center of the cover plate portion, and the retaining mechanism is characterized in that it is freely rotatable around a connecting portion on the extension line of the low-strength portion for valley folding as a fulcrum in accordance with the rotation of the drinking spout forming portion.

[0014] No. 5 The lid for a beverage container according to the present invention is 2 The invention is characterized in that an insertion cut line is provided which extends so as to be approximately parallel to the valley fold low strength portion of the cover plate portion and into which the drinking spout forming portion or the finger insertion portion folded back from the valley fold low strength portion can be inserted.

[0015] No. 6 The lid for a beverage container according to the present invention is 2 The invention is characterized in that a cut line is provided which extends so as to be approximately parallel to the low-strength portion for valley folding of the cover plate portion and can engage with a locking portion provided in the drinking spout formation portion folded back from the low-strength portion for valley folding, or a locking portion provided in the finger insertion portion folded back from the low-strength portion for valley folding.

[0016] No. 7 The lid for a beverage container according to the present invention is 1 In the present invention, the hook wire portion has a shape that bulges toward the valley fold low strength portion.

[0017] No. 8 The lid for a beverage container according to the present invention is 7 In the invention, a grip portion formed between the drinking spout forming line portion and the folding low strength portion inside the drinking spout forming portion, The aforementionedThe drinking spout forming portion is characterized in that it can be rotated freely using the valley fold low strength portion as a fulcrum.

[0018] No. 9 The lid for a beverage container according to the present invention is 7 The invention is characterized in that a cut line is provided which extends approximately parallel to the valley fold low strength portion of the cover plate portion and into which the drinking spout forming portion or the finger insertion portion folded back from the valley fold low strength portion can be inserted.

[0019] No. 1 0 The lid for a beverage container according to the present invention is 7 The invention is characterized in that a cut line is provided which extends so as to be approximately parallel to the low-strength portion for valley folding of the cover plate portion and can engage with a locking portion provided in the drinking spout formation portion folded back from the low-strength portion for valley folding, or a locking portion provided in the finger insertion portion folded back from the low-strength portion for valley folding.

[0020] No. 1 1 The beverage container according to the invention is the first invention to the first invention. 0 The present invention is characterized by comprising a beverage container lid according to any one of the inventions. [Effects of the Invention]

[0021] According to the present invention having the above-described configuration, a drinking spout that makes it easy to drink beverages can be formed without using a straw or removing the beverage container lid, and it is possible to prevent fingers from touching the liquid surface when pressing into a notch or the like provided in the beverage container lid. [Brief explanation 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. [Figure 2] FIG. 2(a) is a plan view of the cover plate portion, and FIG. 2(b) is an enlarged plan view showing the detailed shape thereof. [Figure 3] FIG. 3 is an explanatory diagram 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] FIG. 4(a) is a diagram showing the state in which the finger insertion portion is actually pushed toward the insertion cut line, and FIG. 4(b) is a diagram showing the state in which the hook is actually pushed toward the insertion cut line. [Figure 5] FIG. 5(a) is a diagram showing a form in which a locking portion provided on the periphery of the finger insertion portion is locked to the insertion cut line, and FIG. 5(b) is a diagram showing a form in which a locking portion provided on the hook is locked to the insertion cut line. [Figure 6] FIG. 6 is a diagram showing an example in which a line for a holding mechanism is provided in place of the cut line for insertion in the cover plate. [Figure 7] FIG. 7 is a perspective view showing the operation of forming the drinking spout when a holding mechanism is formed. [Figure 8] FIG. 8 is a cross-sectional view showing the operation of forming the drinking spout when a holding mechanism is formed. [Figure 9] FIG. 9 is a diagram showing another example of a lid for a beverage container according to an embodiment of the present invention. [Figure 10] 10 is a perspective view showing the operation of forming the drinking spout in the other example of the lid for a beverage container shown in FIG. [Figure 11] FIG. 11 is a perspective view showing the operation of folding the finger insertion portion using the low-strength folding portion as a fulcrum and inserting the finger into the insertion cut line in the other example of the beverage container lid shown in FIG. [Figure 12] 12 is a cross-sectional view showing the operation of folding the finger insertion portion using the low-strength folding portion as a fulcrum and inserting the finger into the insertion cut line in the other example of the beverage container lid shown in FIG. [Figure 13] FIG. 13 is a diagram showing a form in which the insertion cut line is omitted in the lid for a beverage container according to the embodiment of the present invention. [Figure 14] 14 is a perspective view showing the operation of forming the drinking spout in the form of the beverage container lid shown in FIG. [Figure 15] 15 is a cross-sectional view showing the operation of forming the drinking spout in the form of the beverage container lid shown in FIG. [Figure 16]FIG. 16 is a diagram showing an example of a beverage container lid according to an embodiment of the present invention, in which a deformation cut line is provided at the end of an insertion cut line. DETAILED DESCRIPTION OF THE INVENTION

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

[0024] 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 a beverage container 2 according to an embodiment of the present invention.

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

[0026] The beverage container 2 is not limited to being made of paper, but may be made of other materials such as plastic. 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 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 includes 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 arranged to cover the opening 3 of the beverage container 2.

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

[0030] Figure 2(a) is a plan view of the cover plate 4, and Figure 2(b) is an enlarged plan view showing the detailed shape of the portion surrounded by the dashed line in Figure 2(a). The cover plate 4 has a drinking spout-forming line 11 on its peripheral side, which is a cut line that defines the peripheral shape of the drinking spout. Note that this drinking spout-forming line 11 may be implemented by providing a low-strength portion that is weaker than the general portion of the cover plate 4, instead of a cut line, by providing perforations or reducing the thickness by half-cutting, etc.

[0031] The area surrounded by the drinking spout forming line 11 is the drinking spout forming region 20. Inside this drinking spout forming region 20, a hook forming line 12 is formed.

[0032] The hook wire portion 12 is a cut line portion formed in a roughly U-shape in plan view. The hook wire portion 12 may have rounded corners of the roughly U-shape, but is not limited to this and may have any shape that bulges outward toward the periphery of the spout that constitutes the spout-forming wire portion 11. The bulging shape referred to here includes any shape that bulges convexly from one end and the other of the hook wire portion 12 toward the spout-forming wire portion 11. Instead of cut lines, the hook wire portion 12 may have a low-strength portion that is weaker than the general portion of the cover plate portion 4, such as by providing perforations or reducing the thickness by half-cutting.

[0033] The area surrounded by this hook line 12 becomes the finger insertion area 30. The finger insertion area 30 is completely contained within the drinking spout formation area 20. The boundary between the drinking spout formation area 20 and the finger insertion area 30 is defined by the hook line 12 and the low-strength folding area 14 described below. The drinking spout formation area 20 also includes a hook 35 formed between this hook line 12 and the drinking spout formation line 11.

[0034] The low-strength folding section 14 is provided between the inner ends of the hook line section 12. The low-strength folding section 14 is a low-strength section that has lower strength than the general section of the cover plate section 4, and is intended to facilitate mountain folding between the finger insertion section 30 and the drinking spout section 20 when the finger insertion section 30 is pressed in from above.

[0035] Specifically, the folding low-strength portion 14 is formed by providing perforations. Note that this folding low-strength portion 14 can also be implemented by providing a low-strength portion that is weaker than the general portion of the cover plate portion 4, for example by reducing its thickness. Both ends of the folding low-strength portion 14 and both ends of the hook wire portion 12 are spaced apart from each other, but this is not limited to this, and the ends of the folding low-strength portion 14 and the ends of the hook wire portion 12 may be close to each other or connected. Note that the configuration of the folding low-strength portion 14 is not essential and may be omitted.

[0036] Furthermore, a valley fold low-strength portion 15 is provided between the inner ends of the drinking spout forming line portion 11 in the drinking spout forming portion 20 of the cover plate portion 4, at a position spaced toward the center of the cover plate portion 4 from the above-mentioned folding low-strength portion 14. The valley fold low-strength portion 15 extends in a direction substantially parallel to the folding low-strength portion 14 and is formed to have lower strength than the general portion of the cover plate portion 4. This valley fold low-strength portion 15 is provided to facilitate the valley folding of the raised drinking spout forming portion 20. The valley fold low-strength portion 15 is formed by providing perforations. Note that the valley fold low-strength portion 15 can also be implemented by providing a low-strength portion that is lower in strength than the general portion of the cover plate portion 4 by reducing its thickness, for example. The valley fold low-strength portion 15 is not essential and may be omitted.

[0037] The drinking spout forming portion 20 is the area surrounded by the drinking spout forming line portion 11 and this valley fold low strength portion 15.

[0038] An insertion cut line 17 is further provided at a position spaced away from the valley fold low strength portion 15 toward the center of the cover plate portion 4, extending so as to be approximately parallel to the valley fold low strength portion 15. The insertion cut line 17 is formed so that the drinking spout forming portion 20 or the finger insertion portion 30 folded back from the valley fold low strength portion 15 can be inserted. The configuration of the insertion cut line 17 is not essential and may be omitted.

[0039] Next, a method for forming a drinking spout on a lid for a beverage container according to an embodiment of the present invention will be described. Figure 3 is an explanatory diagram showing the steps of the method for forming a drinking spout on a lid for a beverage container according to an embodiment of the present invention.

[0040] As shown in FIG. 3(a), finger insertion area 30 is pressed with a fingertip F. As described above, finger insertion area 30 is surrounded by hook line portion 12, which is formed by a cut line or the like, and folding low-strength portion 14. When a pressing force is applied to such finger insertion area 30 by the fingertip F, finger insertion area 30 is pushed downward with folding low-strength portion 14 as a fulcrum. Folding low-strength portion 14 is performed by mountain folding, which can be easily achieved by configuring folding low-strength portion 14 with a low-strength portion that is weaker than the general portion of cover plate portion 4 as described above.

[0041] Furthermore, since the area of ​​this finger insertion portion 30 is small compared to the entire drinking spout forming portion 20, even if it is pressed into with a fingertip F, the amount of pressing is not very large. In other words, even if the finger insertion portion 30 is pressed into, the bulging tip does not press in very deeply, so it is possible to prevent it from coming into contact with the surface of the beverage 6 contained in the beverage container 2. As a result, it is possible to prevent the fingertip F pressing this finger insertion portion 30 from touching the beverage 6 contained in the beverage container 2.

[0042] Next, as shown in FIG. 3(b), the pressed-in fingertip F hooks the hook 35. Since the fingertip F is pressed under the hook 35 in the process of pressing the finger insertion portion 30 downward, the hook 35 can be easily hooked by the fingertip F. Next, the hook 35 that has been hooked on the fingertip F is pushed up. When this pushing-up force is applied to the hook 35, the base end of the hook 35, which is located on the extension line of the folding low-strength portion 14, rotates around the fulcrum, and as shown in FIG. 3(b), it can be pushed up in the approximately vertical direction. Furthermore, as the hook 35 is pushed up in the approximately vertical direction, the finger insertion portion 30 that was pressed down is also pulled up.

[0043] Next, as shown in Figure 3(c), a fingertip F applies a force that further lifts the hook 35. As a result, the drinking spout-forming region 20, including the finger insertion region 30 included therein, rises upward, using the valley fold low-strength portion 15 as a fulcrum. That is, by configuring the drinking spout-forming region 20 to be rotatable using the valley fold low-strength portion 15 as a fulcrum, the drinking spout-forming region 20 rises upward, thereby forming the drinking spout 110. The valley fold low-strength portion 15 is folded by a valley fold, and this can be easily achieved by configuring the valley fold low-strength portion 15 from a low-strength portion that is weaker than the general portion of the cover plate portion 4, as described above.

[0044] At this time, as shown in Figure 3(c), by further pushing the hook 35 toward the insertion cut line 17, it becomes possible to insert it into the insertion cut line 17. Alternatively, as shown in Figure 3(d), by pushing the finger insertion part 30 toward the insertion cut line 17 instead of the hook 35, it becomes possible to insert it into the insertion cut line 17.

[0045] According to the present invention described above, the above-described configuration makes it possible to form a drinking spout 110 that makes it easy to drink beverage 6 without using a straw and without removing beverage container lid 1 from beverage container 2.

[0046] Furthermore, in the present invention, since both the beverage container lid 1 and the beverage container 2 are made of paper, the use of plastics can be eliminated almost completely, except for adhesives and the like.

[0047] Furthermore, according to the method for forming a drinking spout to which the present invention is applied, the drinking spout 110 of the beverage container lid 1 can be easily formed by the simple procedure described above, without having to contact the surface of the beverage 6 with the fingertip F.

[0048] 4(a) shows the state in which the finger insertion portion 30 is actually pushed toward the insertion cut line 17. FIG. 4(b) shows the state in which the hook 35 is actually pushed toward the insertion cut line 17.

[0049] By forming the insertion cut line 17 in advance, the hook 35 or finger insertion portion 30 can be inserted. This allows the raised drinking spout-forming portion 20 itself to be fixed in place, preventing the consumer from feeling inconvenienced when drinking the beverage 6 through the drinking spout 110. Furthermore, by simply holding the unused finger insertion portion 30 or hook 35 and rotating the drinking spout-forming portion 20 toward the peripheral edge of the lid, the hook 35 or finger insertion portion 30 inserted into the insertion cut line 17 can be easily pulled out of the insertion cut line 17, allowing the drinking spout 110 to be closed and opened again.

[0050] In addition to the case where the hook 35 or the finger insertion portion 30 is fixed by inserting it into the insertion cut line 17, as shown in Fig. 5(a), the finger insertion portion 30 may be fixed by engaging a locking portion 36 provided on the periphery of the finger insertion portion 30 with the insertion cut line 17. Furthermore, as shown in Fig. 5(b), the finger insertion portion 30 may be fixed by engaging a locking portion 37 provided on the drinking spout forming portion 20 (hook 35) with the insertion cut line 17. Incidentally, Fig. 5(b) shows an example in which a locking portion 37 is provided on the hook 35 in the drinking spout forming portion 20 and this is engaged with the insertion cut line 17.

[0051] FIG. 6 shows an example in which a retaining mechanism line 18 is provided in the cover plate 4 as an alternative to the insertion cut line 17. The retaining mechanism line 18 is shaped to bulge toward the center of the cover plate 4. That is, the retaining mechanism line 18 is formed in a roughly U-shape in plan view, with a cut line parallel to the valley fold low strength portion 15 and both ends of the cut line extending outward from the cover plate 4. The retaining mechanism line 18 may be formed by perforations instead of cut lines, or may be implemented by providing a low-strength portion that is weaker than the general portion of the cover plate 4 by reducing its thickness by half-cutting or the like.

[0052] This wire portion 18 for the holding mechanism is not limited to an approximately U-shaped shape when viewed in a plane as shown in Figure 6, but may have rounded corners of the approximately U-shaped shape, or may have any shape that bulges toward the center of the cover plate portion 4.

[0053] A retaining mechanism 50 can be formed that is surrounded by the retaining mechanism line portion 18 and the valley fold low strength portion 15 configured as described above.

[0054] FIG. 7 shows the operation of forming a drinking spout when such a holding mechanism 50 is formed. As shown in FIG. 7(a), the process is the same as described above until the hook 35 is pushed up in a substantially vertical direction. Next, as shown in FIG. 7(b), a force is applied to further lift the hook 35. As a result, the drinking spout-forming portion 20, including the finger insertion portion 30 included therein, rises upward, using the connecting portion 60, which is on an extension of the valley fold low-strength portion 15, as a fulcrum. By further pushing the drinking spout-forming portion 20 down toward the center of the cover plate 4, the holding mechanism 50 rotates downward toward the cover plate 4, using the connecting portion 60 as a fulcrum. In other words, the holding mechanism 50 is freely rotatable about the connecting portion 60 as a fulcrum in response to the rotation of the drinking spout-forming portion 20.

[0055] Next, as shown in Figure 7(c), when a force is applied to push the drinking spout forming area 20 downward, the folding low-strength portion 14 is bent in a mountain fold. As shown in Figure 7(d), the drinking spout forming area 20 is further pushed downward to lock it in place. Figure 8 is a cross-sectional view showing this locked state. When the drinking spout forming area 20 is pushed downward, a force acts to push it back, using the folding low-strength portion 14 as a fulcrum, and locks it in place. For an even stronger lock, the tip of the finger insertion area 30 can be pushed all the way to the backside of the cover plate 4, so that the finger insertion area 30 is biased from below to above and can be locked to the periphery of the retaining mechanism line portion 18.

[0056] The beverage container lid 1 to which the present invention is applied is not limited to the above-described embodiment. It may also be configured as a beverage container lid 1' having a hook wire portion 12' as shown in Figure 9. Hereinafter, in this beverage container lid 1', the same components and members as those in the beverage container lid 1 described above will be assigned the same reference numerals, and the following description will be omitted.

[0057] The hook line 12' is a cut line that bulges out toward the center (low-strength valley fold portion 15) in a plan view. Of course, the hook line 12' may be implemented by providing a low-strength portion that is weaker than the general portion of the cover plate portion 4, by providing perforations or reducing the thickness by half-cutting, etc., instead of the cut line.

[0058] The folding low-strength portion 14' is provided between the inner ends of the hook line portion 12' and is composed of a low-strength portion that is weaker than the general portion of the cover plate portion 4. A grip portion 42 is formed between the folding low-strength portion 14' and the drinking spout forming line portion 11.

[0059] In the beverage container lid 1', the finger insertion portion 30 is the area surrounded by the hook line portion 12' and the folding low strength portion 14' having such a configuration.

[0060] Next, a method for forming a drinking spout on a beverage container lid 1' will be described. As shown in FIG. 10(a), a fingertip F presses against the finger insertion region 30. As described above, the finger insertion region 30 is surrounded by the hook line portion 12', which is formed by a cut line or the like, and the low-strength folding portion 14'. When a pressing force is applied to the finger insertion region 30 by the fingertip F, the finger insertion region 30 is pushed downward, with the low-strength folding portion 14' as a fulcrum. Because the area of ​​the finger insertion region 30 is smaller than the entire drinking spout-forming region 20, even if the fingertip F presses against it, its bulging tip does not press in very deeply. This prevents the fingertip F from coming into contact with the surface of the beverage 6 contained in the beverage container 2, similar to the beverage container lid 1 described above. As a result, the fingertip F pressing against the finger insertion region 30 can also be prevented from touching the beverage 6 contained in the beverage container 2.

[0061] Next, as shown in FIG. 10(b), the grip portion 42 is grasped with the pressed-in fingertip F. At this time, as shown in FIG. 10(a), it is also possible to grasp the grip portion 42 by hooking and lifting the hook portion 70, which is located between the center side of the hook line portion 12 and the valley fold low-strength portion 15, with the fingertip F. Because the fingertip F is pressed under the grip portion 42 as the finger insertion portion 30 is pushing downward, the grip portion 42 can be easily grasped with the fingertip F. Next, the grip portion 42 grasped with the fingertip F is pushed up. When this pushing force is applied to the grip portion 42, the drinking spout-forming portion 20 itself rotates around the valley fold low-strength portion 15 as a fulcrum, and can be pushed up in an approximately vertical direction as shown in FIG. 10(b).

[0062] Next, as shown in Figure 10(c), the entire spout forming portion 20 including the grip portion 42 is pushed down toward the insertion cut line 17, using the valley fold low-strength portion 15 as a fulcrum. At this time, as shown in the enlarged view of Figure 10(d), the finger insertion portion 30 may be fixed by engaging the locking portion 36 provided on the periphery with the insertion cut line 17.

[0063] In this way, even in the lid 1' for a beverage container having the hook line portion 12', the drinking spout 110 can be formed without the fingertips F touching the liquid surface of the beverage 6, and the raised drinking spout forming portion 20 itself can be fixed, preventing the consumer from feeling inconvenienced when drinking the beverage 6 through the drinking spout 110.

[0064] Figure 11 shows another example of a method for forming a drinking spout on a beverage container lid 1'. As shown in Figure 11(a), the finger insertion area 30 is pressed and pushed in, and as shown in Figure 11(b), the drinking spout-forming area 20 itself is rotated around the valley-fold low-strength portion 15 as a fulcrum by pushing it up onto the gripping portion 42. Then, as shown in the side cross-sectional views of Figures 11(c) and 12, the finger insertion area 30 is folded around the folding low-strength portion 14' as a fulcrum, and inserted into the insertion cut line 17. By inserting this folding low-strength portion 14' into the insertion cut line 17, the drinking spout-forming area 20 can be fixed in proximity to the cover plate portion 4, as shown in Figure 11(d).

[0065] 13 shows a beverage container lid 1' in which the insertion cut line 17 is omitted. Even if the beverage container lid 1' does not have the insertion cut line 17, the drinking spout forming portion 20 can be fixed by the method described below.

[0066] In this case, as shown in FIG. 14(a), the finger insertion portion 30 is pressed and pushed in with the fingertip F in the same manner as described above. Next, as shown in FIG. 14(b), the mountain fold 48 in the spout forming portion 20 is bent in a mountain fold. This mountain fold 48 is provided between the spout forming line 11 and the hook line 12, and may be configured by providing a low-strength portion that is weaker than the general portion of the cover plate portion 4, for example, by perforation or by reducing the thickness. By forming such a mountain fold 48 in advance, the mountain fold at the mountain fold 48 can be easily achieved. However, providing such a mountain fold 48 is not essential and may be omitted. In this case, the consumer will be required to bend the area near the mountain fold 48.

[0067] Next, grip portion 42 is pushed downward as shown in Figure 14(c). By performing this pushing operation, the amount of bending of mountain fold 48 is increased, and the bending angle θ can be further narrowed as shown in the side cross-sectional view of Figure 15. Furthermore, by pushing grip portion 42 downward, finger insertion area 30 can be pushed to the back side of cover plate portion 4.

[0068] Because the bending angle θ of mountain fold 48 is very narrow, a return force acts in the direction in which bending angle θ widens (the direction of the arrow shown in FIG. 15). A force also acts to return finger insertion area 30 to its original position. These two return forces enable the end of finger insertion area 30 to maintain a state in which it presses against the back side of cover plate 4. As a result, drinking spout-forming area 20, including finger insertion area 30, can be fixed in place.

[0069] 16 shows an example in which deformation cut lines 19 are provided at the ends of insertion cut lines 17. The extension direction of these deformation cut lines 19 is configured to be approximately perpendicular to the extension direction of insertion cut lines 17. By providing such deformation cut lines 19, insertion cut lines 17 can be opened more easily, and the ease of insertion of the finger insertion portion 30 and the like can be improved.

[0070] Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the inventions and their equivalents as defined in the claims. [Explanation of symbols]

[0071] 1 Beverage container lid 2 Beverage containers 3 Opening 4 Cover plate part 5 Side circumference 6 Beverages 11 Line part for forming spout 12 Hook wire section 14 Low strength section for folding 15 Low strength part for valley fold 17 Insertion cut line 18 Line part for holding mechanism 19 Deformation cut line 20 Part for forming mouthpiece 30 Finger insertion site 35 Hook 36, 37 Locking portion 42 Gripping part 48 Mountain Fold 50 Retention mechanism 60 Connection 70 Hook 110 Drinking spout

Claims

1. A lid for a beverage container comprising: a cover plate portion that covers an opening of the beverage container; and a side periphery portion that is provided on the outer periphery of the cover plate portion and that can engage with the edge of the opening of the beverage container when the cover plate portion covers the opening of the beverage container, A drinking spout forming line portion is provided on the peripheral side of the cover plate portion and is the shape of the peripheral side of the drinking spout for forming a drinking spout, and is made of a cut line portion or a low-strength portion having lower strength than the general part of the cover plate portion; A hook line portion consisting of a cut line portion or a low-strength portion having a lower strength than the general portion of the cover plate portion, which is formed inside the drinking spout forming portion surrounded by the drinking spout forming line portion and has a bulging shape; a folding low-strength portion having a lower strength than the general portion of the cover plate portion for facilitating folding by mountain folding between the finger insertion portion and the drinking spout forming portion when the finger insertion portion surrounded by the hook line portion is pressed from above; A low-strength valley-folding portion having a lower strength than the general portion of the cover plate portion is provided between the inner ends of the drinking spout-forming line portion in the drinking spout-forming portion of the cover plate portion to facilitate the valley folding of the raised drinking spout-forming portion. A lid for a beverage container, characterized by:

2. The hook wire portion has a shape that bulges outward toward the peripheral edge of the spout that constitutes the spout-forming wire portion.

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

3. A hook formed between the line for forming the drinking spout and the line for hook inside the drinking spout forming portion allows the drinking spout forming portion to be freely rotated around the low strength portion for valley fold as a fulcrum.

3. The lid for a beverage container according to claim 2, wherein:

4. The retaining mechanism is further provided with a retaining mechanism surrounded by the valley fold low strength portion and a retaining mechanism line portion consisting of a cut line portion or a low strength portion having a strength lower than that of the general portion of the cover plate portion, which has a shape that bulges toward the center of the cover plate portion, The holding mechanism is rotatable around a connecting portion on an extension line of the valley fold low strength portion in response to rotation of the drinking spout forming portion.

4. The lid for a beverage container according to claim 3,

5. An insertion cut line is provided that extends substantially parallel to the valley fold low strength portion of the cover plate portion and is folded back from the valley fold low strength portion, into which the drinking spout forming portion or the finger insertion portion can be inserted.

3. The lid for a beverage container according to claim 2, wherein:

6. A cut line is provided that extends substantially parallel to the valley fold low strength portion of the cover plate portion and can be engaged with a locking portion provided at the drinking spout forming portion folded back from the valley fold low strength portion or a locking portion provided at the finger insertion portion folded back from the valley fold low strength portion.

3. The lid for a beverage container according to claim 2, wherein:

7. The wire portion for hook has a shape that bulges toward the low strength portion for valley fold.

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

8. A gripping portion formed between the drinking spout forming line portion and the folding weak strength portion inside the drinking spout forming portion allows the drinking spout forming portion to be freely rotated around the valley fold weak strength portion as a fulcrum.

8. The lid for a beverage container according to claim 7,

9. A cut line is provided on the cover plate portion so as to extend substantially parallel to the valley fold low strength portion, and is folded back from the valley fold low strength portion into which the drinking spout forming portion or the finger insertion portion can be inserted.

8. The lid for a beverage container according to claim 7,

10. A cut line is provided that extends substantially parallel to the valley fold low strength portion of the cover plate portion and can be engaged with a locking portion provided at the drinking spout forming portion folded back from the valley fold low strength portion or a locking portion provided at the finger insertion portion folded back from the valley fold low strength portion.

8. The lid for a beverage container according to claim 7,

11. The beverage container lid according to any one of claims 1 to 10 is provided. A beverage container characterized by:

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