Lids for beverage containers and beverage containers

Abstract

To provide a lid for a beverage container that can prevent a finger from touching a liquid surface when pressing-in a notch or the like formed in the lid for a beverage container with the finger and can simplify an opening operation so that the lid can be opened in one step, which enables a consumer to intuitively understand how to form a faucet.SOLUTION: A lid for a beverage container comprises a covering plate part 4 covering an opening part 3 of a beverage container 2, and a side periphery part 5, provided at an outer peripheral edge of the covering plate part 4, which can engage with an edge part of the opening part 3 of the beverage container 2 when the covering plate 4 covers the opening part 3 of the beverage container 2, which further comprises a line part 11 for forming a faucet, provided at a peripheral edge side of the covering plate part 4, which has a shape of a peripheral edge side of the faucet 8 for forming the faucet 8, and a line part 12 for locking, formed inside a site 20 for forming the faucet surrounded by the line part 11 for forming the faucet, which has a shape swelling toward the peripheral edge side. One end and the other end of the line part 11 for forming the faucet are positioned closer to the peripheral edge side than the one end and the other end of the line part 12 for locking or are positioned at a same line as the one end and the other end of the line part 12 for locking.SELECTED DRAWING: Figure 3

Description

【Technical Field】 【0001】 The present invention relates to a lid for a beverage container that covers an opening of the beverage container and a beverage container provided with the lid for the beverage container. 【Background Art】 【0002】 Conventionally, in many beverage sales stores such as fast food restaurants and convenience stores, the opening of a beverage container such as a plastic (synthetic resin) or paper cup is covered with a lid for the beverage container, and when carried, beverages such as juice and coffee stored inside are sold so that they are difficult to spill from the opening. 【0003】 To drink the beverage stored inside the beverage container, one can simply remove the lid for the beverage container and drink from the opening. However, when the lid for the beverage container is removed, the beverage adhering to the inside may splash, which may stain the clothes of the person drinking. <00000​​​​​​​​​​​​​Conventionally, in addition to the technology disclosed in Patent Document 1, a push-down type has also been proposed for beverage container lids, in which the drinking spout is formed by folding a portion of the lid that forms the spout. However, this push-down type forces consumers to perform a two-step opening operation to form the spout, which has the problem that it is difficult for consumers to intuitively understand how to form the spout. For this reason, there has been a long-standing desire for a beverage container lid that simplifies the opening operation itself to a single step, so that consumers can intuitively understand how to form the spout. [Prior art documents] [Patent Documents] 【0008】 [Patent Document 1] Japanese Patent Publication No. 2021-14286 [Overview of the project] [Problems that the invention aims to solve] 【0009】 Therefore, the present invention was devised in view of the above-mentioned background, and its purpose is to provide a beverage container lid and a beverage container equipped with this lid, which eliminate the need for a straw and allow consumers to intuitively understand how to form a drinking spout, by preventing the fingers from touching the liquid surface when pressing the notches or other features provided on the beverage container lid with a finger, thereby simplifying the opening process itself to a single step. [Means for solving the problem] 【0010】 The beverage container lid according to the first invention comprises a cover plate portion that covers the opening of the beverage container, and a side peripheral portion provided on the outer peripheral edge of the cover plate portion, which is capable of engaging with the edge of the opening of the beverage container when the cover plate portion covers the opening of the beverage container, wherein a notched line portion or the cover plate portion is provided on the peripheral edge side of the cover plate portion and has the shape of the peripheral edge side of the opening for forming the drinking spout. Other partsIt comprises a drinking spout-forming line portion made of a lower strength portion, and a locking line portion made of a notched line portion formed inside the drinking spout-forming area surrounded by the drinking spout-forming line portion, with one end and the other end of the drinking spout-forming line portion located closer to the periphery than one end and the other end of the locking line portion, or located on the same line as one end and the other end of the locking line portion. Furthermore, extension lines made of low-strength portions with lower strength than the cut lines or other parts of the cover plate extend toward the center from positions spaced apart from one end and the other end of the drinking spout forming line portion toward the center of the cover plate portion. It is characterized by the following. 【0011】 The lid for a beverage container according to the second invention is such that, in the first invention, the drinking spout pivot line connecting one end and the other end of the drinking spout forming line is the covering plate portion Other parts It is characterized by consisting of a lower-strength portion. 【0012】 The beverage container lid according to the third invention is, in the second invention, the locking pivot line connecting one end and the other end of the locking wire portion is the cover plate portion Other parts It is characterized by being made of a lower-strength portion or being pre-folded. 【0013】 The beverage container lid according to the fourth invention is characterized in that, in the second invention, the drinking spout forming portion, which is pressed into the inside of the cover plate portion with the drinking spout fulcrum line as a fulcrum, can be supported by a locking portion surrounded by the locking line portion. 【0014】 The lid for a beverage container according to the fifth invention is characterized in that, in the first invention, the total length of the locking portion from one end and the other end of the locking wire portion to the peripheral tip is longer than the distance between the pivot line of the drinking spout portion connecting one end and the other end of the drinking spout forming wire portion and the pivot line of the locking portion connecting one end and the other end of the locking wire portion. 【0015】 The beverage container lid according to the sixth invention is characterized in that, in the fifth invention, the length of the pivot line of the lock portion is 1 / 4 or more of the length of the pivot line of the drinking spout portion. 【0016】 The beverage container lid according to the seventh invention is characterized in that, in the fifth invention, the total length of the locking portion is shorter than the total length of the drinking spout portion from one end and the other end of the drinking spout forming line portion to the peripheral tip. 【0018】 No. 8 The lid for a beverage container according to the invention is formed such that it can be valley-folded through a line segment connecting the end portions on the central side of the above extension line, and can be mountain-folded through a drinking opening fulcrum line connecting one end and the other end of the above drinking opening forming line portion. 1 In the invention, it is characterized in that it is formed such that it can be valley-folded through a line segment connecting the end portions on the central side of the above extension line, and can be mountain-folded through a drinking opening fulcrum line connecting one end and the other end of the above drinking opening forming line portion. 【0019】 No. 9 [[ID=1%]]The beverage container according to the invention includes a container body and a lid for a beverage container according to any one of the first to 8 inventions. 【Effect of the Invention】 【0020】 According to the present invention having the above-described configuration, it is possible to form a drinking opening from which it is easy to drink the beverage without removing the straw and without removing the lid for the beverage container, and to prevent the finger from touching the liquid surface when the cut or the like provided on the lid for the beverage container is pushed in with the finger. Further, according to the present invention, by simplifying the opening operation itself and realizing it in one step, consumers can understand a method of intuitively forming a drinking opening. 【Brief Description of the Drawings】[[ID=%]] 【0021】 [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 is a plan view of a cover plate portion. [Figure 3] Fig. 3 is an enlarged plan view showing a detailed shape of the cover plate portion shown in Fig. 2. [Figure 4] Fig. 4 is a view for explaining another form of the cover plate portion in a lid for a beverage container to which the present invention is applied. [Figure 5] Fig. 5 is an explanatory view showing step by step a method of forming a drinking opening of a lid for a beverage container according to an embodiment of the present invention. [Figure 6] Fig. 6(a) is a perspective view showing a state after pushing in the portion for forming a drinking opening downward, and Fig. 6(b) is a side sectional view thereof. [Figure 7]Figure 7 illustrates the case of drinking a beverage from a beverage container while the drinking spout portion is supported by the locking mechanism. [Figure 8] Figure 8 shows an example where the length of the pivot line of the locking mechanism is set to be at least 1 / 4 of the length of the pivot line of the drinking spout. [Figure 9] Figure 9 shows various shapes of the locking wire section. [Figure 10] Figure 10 shows another embodiment of a beverage container to which the present invention is applied. [Figure 11] Figure 11 is a diagram illustrating the process preceding the opening method in the configuration shown in Figure 10. [Figure 12] Figure 12 is a diagram illustrating the subsequent process for opening the package in the configuration shown in Figure 10. [Modes for carrying out the invention] 【0022】 The embodiments illustrated below, applying the present invention, will be described with reference to the drawings. 【0023】 First, the beverage container 2 according to an embodiment of the present invention will be described using Figure 1. Figure 1 is an exploded perspective view of the beverage container 2 according to an embodiment of the present invention. 【0024】 As shown in Figure 1, the beverage container 2 according to an embodiment of the present invention is a cylindrical paper cup with a bottom, made of paper, and has an opening 3 with a rim 3a at its top, and is commonly used to hold and sell beverages 6 such as juice or coffee inside. 【0025】 Furthermore, beverage container 2 is not limited to being made of paper, but may be manufactured from other materials such as plastic. In addition, if beverage container 2 is made of plastic, environmentally friendly biodegradable plastics may be used. 【0026】 The beverage container 2 is then used for the purpose of selling the beverage 6 by closing the opening 3 with the beverage container lid 1. 【0027】 The beverage container lid 1 is made of paper and comprises a disc-shaped cover plate portion 4 that covers the opening 3 of the beverage container 2, and a side circumference portion 5 provided on the outer edge of the cover plate portion 4 that can engage with the edge portion 3a of the opening 3 of the beverage container 2 when the cover plate portion 4 covers the opening 3 of the beverage container 2. 【0028】 Furthermore, the beverage container lid 1 is not limited to being made of paper, but may be manufactured from other materials such as plastic. In addition, if the beverage container lid 1 is made of plastic, environmentally friendly biodegradable plastics may be used. 【0029】 Figure 2 is a plan view of the cover plate portion 4, and Figures 3(a) and (b) are enlarged plan views showing the detailed shape of the portion enclosed by the dashed line in Figure 2. The cover plate portion 4 is provided with a drinking spout forming line portion 11 on its peripheral edge, which consists of a cut line portion that is the shape of the peripheral edge of the drinking spout, or a low-strength portion that is weaker than the general portion of the cover plate portion. When this drinking spout forming line portion 11 is made of a low-strength portion, it is implemented by providing 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. The drinking spout forming line portion 11 includes any shape that bulges out convexly toward the peripheral edge from one end 11a and the other end 11b. 【0030】 The area enclosed by the drinking spout forming line portion 11 becomes the drinking spout forming portion 20. Inside this drinking spout forming portion 20, the locking line portion 12 is formed. 【0031】 The locking wire portion 12 has a shape that bulges outwards towards the periphery when viewed from above. This locking wire portion 12 consists of a notched wire portion. The locking wire portion 12 may have a roughly U-shaped form with rounded corners, or it may have any shape that bulges outwards toward the periphery of the drinking spout that constitutes the drinking spout forming wire portion 11. The bulging shape referred to here includes any shape that bulges outwards in a convex shape toward the drinking spout forming wire portion 11 from one end 12a and the other end 12b of the locking wire portion 12. The area enclosed by this locking wire portion 12 is called the locking portion 30. 【0032】 It should be noted that, as shown in Figure 3(a), one end 11a and the other end 11b of the drinking spout forming line portion 11 are located closer to the periphery than one end 12a and the other end 12b of the locking line portion 12. In other words, the drinking spout forming portion 20 surrounded by the drinking spout forming line portion 11 is located closer to the periphery than the locking portion 30 surrounded by the locking line portion 12. 【0033】 However, the design is not limited to the form shown in Figure 3(a), and as shown in Figure 3(b), one end 11a and the other end 11b of the drinking spout forming line 11 may be designed to be on the same line as one end 12a and the other end 12b of the locking line 12. That is, one end 11a and the other end 11b of the drinking spout forming line 11 are arranged substantially identically to one end 12a and the other end 12b of the locking line 12 toward the periphery. 【0034】 The beverage container lid 1 to which the present invention is applied is not limited to the embodiments described above. As shown in Figure 4(a), a drinking spout pivot line 41 connecting one end 11a and the other end 11b of the drinking spout forming line 11 may be provided separately. This drinking spout pivot line 41 may be made of a low-strength part of the cover plate 4 that has lower strength than the general part. When made of such a low-strength part, processing such as providing perforations or reducing the thickness by half-cutting may be applied. This drinking spout pivot line 41 extends from one end 11a to the locking line 12, and also extends from the other end 11b to the locking line 12. By providing such a drinking spout pivot line 41 made of a low-strength part, the drinking spout forming part 20 can be configured to rotate freely with the drinking spout pivot line 41 as a pivot point. However, the configuration of this drinking spout pivot line 41 is not essential and may be omitted. 【0035】 Furthermore, according to the present invention, as shown in Figure 4(b), a locking pivot line 42 connecting one end 12a and the other end 12b of the locking wire portion 12 may be provided separately. This locking pivot line 42 may be made of a low-strength portion that has lower strength than the general portion of the cover plate portion 4. When made of such a low-strength portion, processing such as providing perforations or reducing the thickness by half-cutting may be applied. By providing a locking pivot line 42 made of such a low-strength portion, the locking portion 30 can be configured to rotate freely with the locking pivot line 42 as a pivot point. However, the configuration of this locking pivot line 42 is not essential and may be omitted. 【0036】 In this case, as shown in Figure 4(b), the total length c1 of the locking portion from one end 12a and the other end 12b of the locking wire portion 12 to the peripheral tip must be designed to be longer than the distance c2 between the pivot line 41 of the drinking spout and the pivot line 42 of the locking portion. 【0037】 Similarly, as shown in Figure 4(b), the total length c1 of the locking portion must be designed to be shorter than the total length c3 of the drinking portion from one end 11a and the other end 11b of the drinking portion forming wire 11 to the peripheral tip. 【0038】 Next, a method for forming the drinking spout of a beverage container lid according to an embodiment of the present invention will be described. Figure 5 is an explanatory diagram showing the step-by-step method for forming the drinking spout of a beverage container lid according to an embodiment of the present invention. 【0039】 As shown in Figure 5(a), the fingertip F presses against the mouthpiece forming portion 20 and the locking portion 30. As described above, the mouthpiece forming portion 20 is surrounded by a mouthpiece forming line portion 11 which is made up of a low-strength portion that is weaker than the cut line portion or the general portion of the cover plate portion. When pressure is applied to the mouthpiece forming portion 20 by the fingertip F, as shown in Figure 5(b), the mouthpiece forming portion 20 is pushed downward with the mouthpiece pivot line 41 as the pivot point. Similarly, when pressure is applied to the locking portion 30 by the fingertip, the locking portion 30 is pushed downward with the locking portion pivot line 42 as the pivot point. In other words, with a single pressing motion by the fingertip F, both the mouthpiece forming portion 20 and the locking portion 30 are folded together. 【0040】 In this case, by constructing the pivot line 41 of the drinking spout with a low-strength section, the drinking spout forming section 20 can be easily rotated downwards. Similarly, by constructing the pivot line 42 of the locking section with a low-strength section, the locking section 30 can be easily rotated downwards. 【0041】 Even if the drinking spout pivot line 41 and the locking spout pivot line 42, which are made of low-strength material, are not formed, similarly, by applying pressing force from a fingertip F to the drinking spout forming part 20 and the locking part 30, the drinking spout forming part 20 can be rotated using one end 11a and the other end 11b of the drinking spout forming line part 11 as pivot points, and the locking part 30 can be rotated using one end 12a and the other end 12b of the locking line part 12 as pivot points. 【0042】 Figure 6(a) is a perspective view showing the state after the drinking spout forming portion 20 has been pushed downwards, and Figure 6(b) shows a side cross-sectional view thereof. 【0043】 When the pressure applied by the fingertip F is released, the mouthpiece forming portion 20 acts to return to its original position using the mouthpiece pivot line 41 as a fulcrum, but as shown in Figure 6, it is locked in place by the peripheral tip of the locking portion 30. As a result, the boundary of the locking line portion 12 on the mouthpiece forming portion 20 can be supported from the outside by the peripheral tip of the locking portion 30. In order for the mouthpiece forming portion 20 to be locked by the locking portion 30 based on this configuration, it is a prerequisite that the mouthpiece pivot line 41 is either peripheral to the locking portion pivot line 42 or on the same line. Preferably, by positioning the mouthpiece pivot line 41 peripheral to the locking portion pivot line 42, the locking portion 30 can be locked more firmly to the mouthpiece forming portion 20. 【0044】 In addition, for the drinking spout forming portion 20 to be locked by the locking portion 30, the total length c1 of the locking portion must be designed to be longer than the distance c2 between the pivot line 41 of the drinking spout and the pivot line 42 of the locking portion. If the total length c1 of the locking portion is less than or equal to the distance c2, it will be impossible to lock the drinking spout forming portion 20 with the locking portion 30 due to its design. 【0045】 Furthermore, in order for the locking portion 30 to lock the mouthpiece forming portion 20, the locking portion must be designed so that its total length c1 is shorter than the total length c3 of the mouthpiece. If the total length c1 of the locking portion is longer than or equal to the total length c3 of the mouthpiece, it becomes impossible to lock the mouthpiece forming portion 20 with the locking portion 30 due to its design. 【0046】 Thus, a beverage container lid 1 in which the drinking spout forming portion 20 can be supported by the locking portion 30 has the following effects. 【0047】 When drinking the beverage 6 from the beverage container 2 with the drinking spout forming portion 20 supported by the locking portion 30, the beverage container 2 is tilted toward the formed drinking spout 8, as shown in Figure 7(a). When the beverage container 2 is tilted, the beverage 6 inside attempts to flow toward the drinking spout 8. The arrows shown in Figure 7(a) indicate the direction in which the beverage 6 flows toward the drinking spout 8. 【0048】 A portion of the flow of the beverage 6 in the beverage container 2 toward the drinking spout 8 is obstructed by the drinking spout-forming portion 20, which is pushed downwards. As a result, a force acts on this drinking spout-forming portion 20, pushing it upwards. Since the drinking spout-forming portion 20 is supported by the locking portion 30, it can resist this upward force from the beverage 6. As a result, the beverage 6 flows toward the drinking spout 8 while circulating around the drinking spout-forming portion 20. 【0049】 In particular, as shown in Figure 7(b), the drinking spout forming portion 20 will not detach from the locked portion 30 unless a strong force is applied to its base, i.e., near the locking portion 30, under the principle of leverage. Especially when the amount of beverage 6 remaining in the beverage container 2 decreases, the beverage 6 will no longer come into contact with the base of the drinking spout forming portion 20. Therefore, when the beverage container 2 is tilted, the force from the beverage 6 will cause the drinking spout forming portion 20 to detach from the locking portion 30 and push the drinking spout forming portion 20 upward, which can be prevented. 【0050】 Thus, the beverage container 2 to which the present invention is applied can form a drinking spout that makes it easy to drink the beverage with just one step: pressing and folding the drinking spout forming portion 20 and the locking portion 30 with a fingertip F. In other words, according to the present invention, the opening operation itself is simplified and realized in one step, so consumers can intuitively understand how to form the drinking spout, and therefore it has the characteristic of being easily adopted in the market. 【0051】 Furthermore, since the drinking spout forming portion 20 can be firmly locked by the locking portion 30, even if the beverage container 2 is tilted when drinking the beverage 6, the drinking spout forming portion 20 will not detach from the locking portion 30 and will not be pushed back upwards. Therefore, when the beverage container 2 is tilted when drinking the beverage 6, the drinking spout forming portion 20 will not return to its original position, preventing inconvenience to the consumer. 【0052】 Furthermore, in the beverage container 2 to which the present invention is applied, it is also possible to prevent the fingertip F from touching the liquid surface when pressing and pushing in the drinking spout forming portion 20 and the locking portion 30 with the fingertip F. 【0053】 Furthermore, in a beverage container 2 to which the present invention is applied, a straw can be eliminated, and a drinking spout 8 that makes it easy to drink the beverage 6 can be formed without removing the beverage container lid 1 from the beverage container 2. Moreover, in the present invention, if both the beverage container lid 1 and the beverage container 2 are made of paper, it is possible to eliminate plastic almost completely, except for the adhesives used. 【0054】 It should be noted that the present invention is not limited to the embodiments described above. As shown in Figure 8, the length (c5) of the locking pivot line 42 may be set to be 1 / 4 or more of the length (c4a + c4b) of the drinking spout pivot line 41. By increasing the length c5 of the locking pivot line 42, the rigidity of the locking part 30 is increased, and the drinking spout forming part 20 can be locked more firmly. In particular, by setting the length (c5) of the locking pivot line 42 to 1 / 4 or more of the length (c4a + c4b) of the drinking spout pivot line 41, it is possible to increase the relative rigidity of the locking pivot line 42 compared to the drinking spout pivot line 41, thereby achieving a stronger lock. 【0055】 Figures 9(a) to 9(g) show various shapes of the locking wire portion 12. Figure 9(a) shows a shape in which the locking wire portion 12 gradually expands in diameter towards the periphery. By making the locking portion 30 expandable, the ease of locking the mouthpiece forming portion 20 can be improved. Figure 9(b) shows a shape in which the locking wire portion 12 gradually shrinks in diameter towards the periphery. Conversely, by increasing the length of the locking support line 42 in the locking portion 30, its rigidity can be increased. Figure 9(c) shows an example in which the locking wire portion 12 is made up of the same diameter without shrinking or expanding in diameter towards the periphery. This incorporates the advantages of each shape shown in Figures 9(a) and (b) in a balanced manner. 【0056】 Figure 9(d) shows an example in which the locking wire portion 12 is formed in an arc shape, and this form is also included in the present invention. Figures 9(e) and (f) show examples in which the shape of the locking wire portion 12 is configured in various ways, and any other variation of shape is also included in the present invention. Furthermore, the shape of the locking wire portion 12 is not limited to regular shapes, but also includes irregular shapes. 【0057】 Figure 9(g) shows an example in which multiple locking parts 30 are formed by creating discontinuous locking wires 12. Of course, the same desired effects described above can be obtained in this case as well. 【0058】 Figure 10 shows another embodiment of the beverage container 2 to which the present invention is applied. In the other embodiment shown in Figure 10, an extension line 45 extends toward the center of the cover plate portion 4 from a position spaced apart from one end 11a and the other end 11b of the mouthpiece forming line portion 11. This extension line 45 is made of a low-strength portion that has lower strength than the cut line portion or the general portion of the cover plate portion 4. When this extension line 45 is made of a low-strength portion, it is implemented by providing a low-strength portion that has lower strength than the general portion of the cover plate portion 4, such as by providing perforations or reducing the thickness by half-cutting. The area enclosed by this extension line is hereinafter referred to as the extension portion 46. In addition, a joint portion 51 is provided near the mouthpiece pivot line 41 of the extension line 45. 【0059】 It is desirable that the drinking spout forming wire portion 11 has a shape that includes an enlarged diameter portion 31 that is widened near the peripheral edge. 【0060】 In a beverage container 2 having this configuration, the drinking spout 8 can be formed by the method described below. 【0061】 As shown in Figure 11(a), first, the peripheral tip of the mouthpiece forming part 20 is pressed with a fingertip F. As a result, as shown in Figure 11(b), the mouthpiece forming part 20 is pushed downward with the mouthpiece pivot line 41 as the pivot point. Note that in the operation shown in Figure 11, only the mouthpiece forming part 20 is pressed with the fingertip F, and the locking part 30 is not pressed. The locking part 30 is separated from the mouthpiece forming part 20 via a locking line portion 12, which is formed by a notched line portion. Therefore, even if the mouthpiece forming part 20 is pushed downward with the joint portion 51 near the mouthpiece pivot line 41 as the pivot point, the locking part 30 does not follow. As a result, when the mouthpiece forming part 20 is pushed downward, the locking part 30 protrudes toward the peripheral edge, as shown in Figure 11(b). 【0062】 Next, as shown in Figure 12(a), the locking portion 30 protruding from the periphery is hooked with the fingertip F and pulled towards the center. The fact that the locking portion 30 protrudes from the periphery makes it easier to hook with the fingertip F. In the process of pulling the locking portion 30 towards the center with the fingertip F, the pivot line 41 of the drinking spout, which is already folded in a mountain fold, is pulled upward. Following this upward pull of the pivot line 41 of the drinking spout, the extension portion 46 is lifted. The extension portion 46 has an extension line 45 at its periphery, and since the extension line 45 is made of a cut line portion or a low-strength portion, the extension portion 46 can be easily separated from the cover plate portion 4 and lifted. In the process of this operation, a valley fold is made along the line segment connecting the central ends 45a and 45b of the extension line 45. To facilitate this valley fold, the line segment connecting the central ends 45a and 45b of the extension line 45 may also be made of a low-strength portion. 【0063】 As the drinking spout pivot line 41 is lifted upward, and the extension 46 is also lifted accordingly, the angle of the mountain fold of the drinking spout pivot line 41 becomes sharper. At this time, by pre-forming the widened diameter portion 31 of the drinking spout forming line portion 11, as shown in Figure 12(a), the widened diameter portion 31 itself is configured to lock onto and guide the drinking spout 8, and a restraining force can be applied to prevent the drinking spout pivot line 41 from being lifted too far upward. 【0064】 By guiding the expanding portion 31 toward the drinking spout 8 in this manner, and pulling the pivot line 41 of the drinking spout toward the center with the fingertip F as shown in Figure 12(b), the drinking spout 8 can be widened considerably. Because the expanding portion 31 itself is locked toward the drinking spout 8, when the beverage container 2 is tilted while drinking the beverage 6, the drinking spout forming portion 20 will not return to its original position, thus preventing inconvenience for the consumer. Moreover, forming the drinking spout 8 requires only one step: pressing and pulling the drinking spout forming portion 20 with the fingertip F, thereby creating a drinking spout that is easy to drink from. In other words, in this embodiment as well, by simplifying the opening process itself and achieving it in one step, consumers can intuitively understand how to form the drinking spout. [Explanation of symbols] 【0065】 1 Beverage container lid 2 Beverage containers 3 Opening 4 Cover plate part 5 Side circumference 6 Beverages 8 spout 11 Line part for forming spout 12. Locking wire section 20 Part for forming mouthpiece 30 Locking part 31 Expanded diameter part 41 Mouthpiece line at the drinking spout 42. Pivot line of the locking mechanism 45 Extension line 46 Extension 51 Joint

Claims

[Claim 1] A beverage container lid comprising: a cover plate portion that covers the opening of a beverage container; and a side portion provided on the outer peripheral edge of the cover plate portion, which is capable of engaging 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 edge side of the cover plate portion and is shaped like the peripheral edge side of the drinking spout, consisting of a cut line portion or a low-strength portion that is weaker than other parts of the cover plate portion, The drinking spout forming portion is enclosed by the above-mentioned spout forming lines and includes a locking line portion which is formed inside the spout forming portion and has a shape that bulges outwards on the periphery side, and consists of a notched line portion. One end and the other end of the above-mentioned mouthpiece forming wire portion are located closer to the periphery than one end and the other end of the above-mentioned locking wire portion, or are located on the same line as one end and the other end of the above-mentioned locking wire portion. From positions spaced apart from one end and the other end of the mouthpiece forming line towards the center of the cover plate, extension lines consisting of a low-strength portion with lower strength than the cut line or other parts of the cover plate extend toward the center. A beverage container lid characterized by the following features. [Claim 2] The drinking spout support line connecting one end and the other end of the above-mentioned spout-forming line consists of a low-strength portion that is weaker than other parts of the cover plate. A beverage container lid according to claim 1, characterized by the above. [Claim 3] The locking pivot line connecting one end and the other end of the above-mentioned locking wire section shall be made of a low-strength section with lower strength than other parts of the cover plate, or shall be bent in advance. A beverage container lid according to claim 2, characterized by the above. [Claim 4] The drinking spout forming portion, which is pushed into the inside of the cover plate portion with the above-mentioned drinking spout fulcrum line as a fulcrum, is supported by the locking portion surrounded by the locking line portion. A beverage container lid according to claim 2, characterized by the above. [Claim 5] The total length of the locking portion from one end and the other end of the locking wire to the peripheral tip is longer than the distance between the pivot line of the drinking spout connecting one end and the other end of the drinking spout forming wire and the pivot line of the locking portion connecting one end and the other end of the locking wire. A beverage container lid according to claim 1, characterized by the above. [Claim 6] The length of the pivot line of the locking mechanism is at least 1 / 4 of the length of the pivot line of the drinking spout. A beverage container lid according to claim 5, characterized by the above. [Claim 7] The total length of the locking portion is shorter than the total length of the drinking spout portion from one end and the other end of the drinking spout forming wire portion to the peripheral tip. A beverage container lid according to claim 5, characterized by the above. [Claim 8] It is configured to be foldable in a valley fold via a line segment connecting the central ends of the above extension lines, and also configured to be foldable in a mountain fold via a drinking spout pivot line connecting one end and the other end of the drinking spout forming line. A beverage container lid according to claim 1, characterized by the above. [Claim 9] The container comprises a container body and a lid for a beverage container as described in any one of claims 1 to 8. A beverage container characterized by the following features.

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