Lid for container

The integrated lid design with minimal Thomson blades addresses operational complexity and spillage issues of straw-less lids, enabling both straw-free and straw-use options, reducing environmental impact and inventory complexity.

JP2026023278APending Publication Date: 2026-02-13TOKAN KOGYO CO LTD
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Patent Information

Application Number
JP2024125185
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2026-02-13

AI Technical Summary

Technical Problem

Existing straw-less lids require complex operations and are prone to spillage, ice leakage, and contamination due to large openings, while straw-insertion lids complicate inventory management and environmental impact when used separately.

Method used

A lid design with integrated cutting lines forming an on-off valve, scent window valve, and straw holding mechanism, allowing both straw-free and straw-use options without additional complexity, using minimal Thomson blades for precise cutting.

Benefits of technology

Ensures easy operation and reduced spillage, dust, insect, and ice leakage, while accommodating both straw-free and straw-use preferences, minimizing straw usage and simplifying inventory management.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a lid which does not require a straw and can be used with a straw without complicating a process.SOLUTION: The lid includes a lid top surface 11, a lid side fitting part 14, a cutting line 21 and a cutting line 32 formed on the lid top surface, connecting parts 23 and 23 formed between the ends of the cutting lines, a rotating shaft 25 formed between the connecting parts, an opening / closing valve 22 formed so as to be surrounded by the cutting line 21 and the rotating shaft 25, an upper lip abutting part 27 formed so as to protrude from the opening / closing valve and abutted by the upper lip, a flavor window valve 33 and 33 formed so as to be surrounded by the cutting line 31 and the rotating shaft 25, the drinking container includes a direct drinking mechanism 20 in which an incense window opening 34,34 is formed, a straw valve 41 formed in a tongue shape from a part of a cutting line 31, and a straw holding mechanism 40 capable of holding the straw by elastic force of the straw valve 41.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to a lid that is fitted onto a container that contains a liquid or the like. [Background technology]

[0002] Because liquid beverages are easily broken, they are often served in containers with lids. For example, restaurants and other establishments use lidded containers for takeout and delivery.

[0003] The container basically comprises a bottom, a body standing upright from the bottom, and a flange formed at the top end of the body. The lid basically comprises a lid top surface corresponding to the container opening, and a lid-side fitting portion corresponding to the container flange. The container is often made of paper, but the material is not particularly specified. The lid is often made of resin, but the material is not particularly specified. The description in this application is based on the assumption that the lid is made of resin.

[0004] In recent years, from an environmentally friendly perspective, lids for beverage containers have been proposed that allow beverages to be drunk directly without using straws (for example, Patent Document 1).

[0005] In a typical example, the top of the lid has an opening, a small lid with a protrusion that rotates to open and close the opening, and an engaging groove that engages and holds the protrusion on the inverted small lid in the open position. When the opening and closing mechanism is in the open position and the lower lip is placed near the rim of the lid, the drink can be consumed.

[0006] In general, straw-less lids have advantages and disadvantages compared to straw-insertion lids.

[0007] The straw-free type uses slightly more resin than the straw-insertion type, but the advantage is that not needing a straw reduces the environmental impact.

[0008] If you want to gulp down a straw-less drink, you can enlarge the opening. This allows you to enjoy the aroma. This is an advantage.

[0009] Compared to the straw insertion operation in the straw insertion type, the lifting operation and engagement / holding operation of the protruding small lid in the straw-less type requires practice and skill. For children, the elderly, and people with limited dexterity, operability is a disadvantage.

[0010] With straw-less drinks, the container is tilted to drink, which means that liquid remains in various places on the lid. With straw-less drinks, ice may come out of the opening because the container is tilted to drink. This is a disadvantage.

[0011] Also, as a result of making the opening larger, it becomes more susceptible to breakage even with small vibrations. Ice also comes out more easily. There is also the risk of dust and insects getting in through the large opening. These are disadvantages.

[0012] An improved example of a straw-free lid has been proposed that makes use of the advantages of the general straw-free lid while suppressing its disadvantages (Patent Document 2). [Prior art documents] [Patent documents]

[0013] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-308224 [Patent Document 2] Japanese Patent Application Laid-Open No. 2024-29925 Summary of the Invention [Problem to be solved by the invention]

[0014] The improved example (see Figure 8A) includes an on-off valve 22 that can be opened and closed via a pivot 25, and an upper lip contact part 27 that is attached to the on-off valve 22 so as to protrude from the contents side to the non-contents side and that comes into contact with the upper lip. Pressing the upper lip causes the on-off valve 22 to rotate, allowing drinking (see Figure 8B). Releasing the upper lip pressing action closes the on-off valve 22.

[0015] This allows the opening 24 to be formed without the need for complicated operations, and the opening 24 can be closed when not in use. As a result, it is possible to obtain effects such as preventing liquid from being spilled due to vibration, preventing the entry of dust and insects, and preventing ice from spilling out.

[0016] A further improvement is provided with a scent window valve 32 that opens and closes in response to the rotation of the on-off valve 22. When the on-off valve 22 is pressed down via the rotating shaft 25, the scent window valve 32 rotates upward, forming a scent window opening 34. With the scent window opening 34 open, the scent can be enjoyed while drinking. When not drinking, the scent window opening 34 is closed, preventing the loss of the scent and allowing the scent to be enjoyed for a longer period of time. Furthermore, by repeatedly opening and closing intermittently, olfactory habituation is prevented, allowing the scent to be enjoyed for a longer period of time.

[0017] This allows the aroma to be enjoyed even without a large opening 24. As a result, the effects of preventing spillage of liquid, the entry of dust and insects, and the spillage of ice are improved.

[0018] The above-mentioned conventional improved example is referred to as the Reference Example of the present invention, which is an improvement of the Reference Example of the present invention.

[0019] The reference example of this application is already on the market, and the technical concept is well understood and highly acclaimed. However, there are still some users who do not fully understand the purpose of reducing straw usage and wish to continue using straws.

[0020] When a straw is inserted into the reference example of the present application, the opening 24 is always open. The automatic opening and closing function of the on-off valve 22 is lost. As a result, dust and insects may enter. Furthermore, because the opening 24 is formed on the periphery, it is easily damaged by vibration. In other words, because the reference example of the present application is based on the technical concept of eliminating the need for a straw, problems occur when using a straw.

[0021] However, from the perspectives of reducing environmental impact, facilitating inventory management, and securing space in stores, we are not considering providing separate straw-insertion lids and straw-less lids. Therefore, it would be preferable to have a combination of straw-less (direct drinking) and straw-used lids.

[0022] However, providing a separate straw insertion hole in the reference example of the present application is not preferable as it would complicate the process.

[0023] The present invention aims to solve the above problems and to provide a lid that can be used with or without a straw without complicating the process. [Means for solving the problem]

[0024] The present invention has been conceived based on the reference example of the present application. In the reference example of the present application, two cutting lines are provided: one for forming the on-off valve 22 and the other for forming the incense window valve 32 (see FIG. 8). The two cutting lines are formed by simultaneously punching the sheet with two Thomson blades (see FIG. 9).

[0025] Here, when a separate straw insertion hole is provided, a separate Thomson blade is required. When punching simultaneously with multiple Thomson blades, unless high precision smoothness is ensured, uneven cutting may occur.

[0026] The applicant of the present application found through trial and error that machining the blade shape to be somewhat more complex can ensure cutting accuracy with a simpler process than increasing the number of blades. Therefore, in the present invention, it is intended to increase the number of blades as little as possible compared to the reference example of the present application.

[0027] the opening and closing valve is formed so as to protrude from the contents side to the non-contents side and is in contact with the upper lip; a scent window valve formed so as to be surrounded by the second cutting line and the rotating shaft; when the upper lip abutment part is pressed down, the opening and closing valve rotates around the rotating shaft to form a drinking spout opening, and the scent window valve rotates around the rotating shaft in conjunction with the rotation of the opening and closing valve to form the scent window opening; a straw valve formed in a tongue shape from a part of the second cutting line; and a straw holding mechanism that can hold a straw by the elastic force of the straw valve.

[0028] This lid is a combination of straw-free and straw-using types. Straws are not provided to customers who do not need them, and straws are only provided to customers who wish to use them. As a result, straw usage can be reduced.

[0029] The lid of the present invention is formed by the first cutting line and the second cutting line. That is, the cutting lines can be formed with as few blades as possible. As a result, cutting accuracy can be ensured with a simple process.

[0030] In the above invention, preferably, the device further comprises a pillar portion extending from the upper lip abutment portion across the pivot axis to the incense window valve, and in the direct drinking mechanism, the rotation of the opening / closing valve is transmitted to the incense window valve via the pillar portion.

[0031] This ensures that the on-off valve and the scent window valve are integrated, and the scent window valve rotates around the rotation axis in unison with the rotation of the on-off valve.

[0032] In the above invention, preferably, the second cutting line is formed by an M-shaped curve, two incense window valves are formed on both sides of the M, and a straw valve is formed in the center of the M.

[0033] This allows the addition of a straw holding mechanism without increasing the number of blades.

[0034] In the above invention, preferably, the direct drinking mechanism is formed on one half of the top surface of the lid, and a step is formed on the other half of the top surface of the lid.

[0035] The stepped portion ensures rigidity around the mechanism, preventing the direct drinking mechanism from rotating together with the straw holding mechanism when it rotates.

[0036] To achieve the above object, the present invention provides a method for manufacturing a lid for a container, in which the first cutting line and the second cutting line are formed on the top surface of the lid using a first Thomson blade that forms the first cutting line and a second Thomson blade that forms the second cutting line simultaneously.

[0037] By forming the cutting line with as few blades as possible, cutting accuracy can be ensured with a simple process. [Effects of the Invention]

[0038] The present invention provides a lid that can be used both with and without a straw. Straws are not provided to users who do not need them, and straws are only provided to users who wish to use them. As a result, the amount of straws used can be reduced.

[0039] The present invention allows cutting lines to be formed with as few blades as possible, thereby ensuring cutting accuracy through a simple process. [Brief explanation of the drawings]

[0040] [Figure 1] Overall configuration perspective view [Figure 2] Overall configuration plan and cross-sectional view [Figure 3] Plan view and perspective view of the main part [Figure 4] Rotation operation diagram [Figure 5] Holding operation explanation diagram [Figure 6] Modified example operation explanatory diagram [Figure 7] Modified example operation explanatory diagram [Figure 8] Reference example: perspective view of main part and operation explanatory diagram [Figure 9] Thomson blade image DETAILED DESCRIPTION OF THE INVENTION

[0041] ~Embodiment Configuration~ 1 is a perspective view of the overall configuration of the embodiment, FIG. 2A is a plan view of the overall configuration, and FIG. 2B is a cross-sectional view of the overall configuration. The lid comprises a lid top surface 11, a lid-side fitting portion 14, and a circumferential skirt portion 15.

[0042] The lid-side fitting portion 14 extends from the periphery of the lid top surface. The inner wall, top, and outer wall of the lid-side fitting portion 14 form a gate-like shape, and the container flange (the container opening edge) is inserted into the gate-like internal space to form a fitted state. The circumferential skirt portion 15 extends downward from the outer wall of the lid-side fitting portion 14.

[0043] A rib 16 is formed on the lid top surface 11 concentrically with the lid-side fitting portion 14, and a main flat portion 17 including the direct drinking mechanism 20 and straw holding mechanism 40 is formed on one half of the circular rib 16 so as to divide a portion of the circular rib. A stacking groove 18 is formed on the other half of the circular rib. Note that the groove may be provided with a protrusion to prevent stacking.

[0044] The stacking groove 18 prevents the lids from sticking together too closely when multiple lids are stacked. It is formed in a crescent shape one step lower than the main flat surface 17 so as to surround a part of the main flat surface 17.

[0045] The drinking spout 19 extends from the top of the lid-side fitting portion 14 to the outer wall (and in some cases includes part of the circumferential skirt portion 15), and is in contact with the drinker's lower lip. The drinking spout 19 is continuous with the outer end of the main flat portion 17.

[0046] 3A is a plan view and FIG. 3B is a perspective view of the main planar portion 17. The main planar portion 17 includes a direct drinking mechanism 20 and a straw holding mechanism 40.

[0047] The main flat surface 17 is provided with a cutting line 21 and a cutting line 31 .

[0048] The cutting line 21 is cut to form an on-off valve 22, for example, forming a C-shaped curve.

[0049] The cutting line 31 is cut to form the incense window flap 32, for example, forming an M-shaped curve.

[0050] Two connecting portions 23, 23 are formed between the end of the C-shaped cutting line 21 and the end of the M-shaped cutting line 31. In other words, the portion between the end of the C-shaped cutting line 21 and the end of the M-shaped cutting line 31 is not cut. Therefore, the connecting portions 23, 23 maintain elasticity in the main flat portion 17. A rotation axis 25 is formed between the connecting portions 23, 23.

[0051] The extension direction of the end of the C-shaped cutting line 21 is approximately perpendicular to the extension direction of the end of the M-shaped cutting line 31. This prevents the cutting line ends from extending and becoming continuous with each other (the connecting portions 23, 23 disappearing) as a result of repeated rotation.

[0052] The on-off valve 22 is formed so as to be surrounded by the C-shaped cutting line 21 and the rotating shaft 25. The incense window valves 32, 32 are formed so as to be surrounded by the mountain portions on both sides of the M-shaped cutting line 31 and the rotating shaft 25. The on-off valve 22 and the incense window valves 32, 32 are continuous via the rotating shaft 25.

[0053] The on-off valve 22 is provided with an upper lip abutment portion 27 that protrudes from the contents side to the non-contents side.

[0054] The upper lip of the drinker comes into contact with the upper lip contacting portion 27. Therefore, the width of the upper lip contacting portion 27 (in the direction parallel to the pivot axis) should be appropriately wide to allow the upper lip to come into contact with it. For example, it is more preferable that the width of the upper lip contacting portion 27 is approximately 1.2 to 2 times the length between the connecting portions 23, 23. Furthermore, the upper lip can come into contact with the upper lip more easily if the upper lip contacting portion 27 has an appropriate height. For example, the top of the upper lip contacting portion 27 should be located -2 ​​to +6 mm above the top of the lid-side fitting portion 14.

[0055] Pillars 35, 35 extend from the upper lip abutment portion 27 across the pivot shaft 25 to the incense window valves 32, 32 so as to protrude from the contents side to the non-contents side. The high rigidity of the pillars 35, 35 transmits the rotation of the on-off valve 22 to the incense window valves 32, 32.

[0056] The pillars 35 are not essential if the integrity of the on-off valve 22 and the scent window valves 32 can be ensured through high rigidity. However, the thickness of the resin in commercially available examples is 200 microns, and it is preferable to provide the pillars 35 to ensure integrity through the provision of rigidity.

[0057] The drinking spout 19, the upper lip contact portion 27, the on-off valve 22, the rotating shaft 25, and the scent window valves 32, 32 constitute the direct drinking mechanism 20.

[0058] The straw valve 41 is formed in the central valley of the M-shaped cutting line 31 in the main flat portion 17. The straw valve 41 is flush with the main flat portion 17. In other words, no protrusions 27, 35, etc. are formed on the straw valve 41. Note that in FIG. 1, arrow-shaped irregularities suggesting a straw opening are formed on the main flat portion 17, but these irregularities do not substantially increase rigidity and can be considered to be non-existent. As long as they do not impede the rotation of the straw valve 41, which will be described later, some irregularities are considered to be non-existent.

[0059] The width of the straw valve 41 should be slightly larger than the diameter of the straw. For example, if the diameter of the target straw is 5 mm, the width of the straw valve 41 should be about 7 mm, and if the diameter of the target straw is 8 mm, the width of the straw valve 41 should be about 10 mm.

[0060] A rotation axis 43 is formed at a position connecting both peaks of the M-shaped cutting line 31 .

[0061] The straw valve 41 and the rotating shaft 43 constitute a straw holding mechanism 40.

[0062] Guide walls 29 are provided on both the left and right sides of the on-off valve 22 and the incense window valves 32. The main flat surface 17 is surrounded by the guide walls 29, a step formed by the stacking groove 18, and a part of the lid-side fitting portion 14 that corresponds to the drinking spout 19. This increases the rigidity around the main flat surface 17 and prevents parts of the main flat surface 17 other than the valves from rotating together with the rotation of the on-off valve 22 and the incense window valves 32, allowing the on-off valve 22 and the incense window valves 32 to open and close smoothly.

[0063] ~Embodiment Operation~ 4A is an explanatory diagram of the rotational movement of the direct drinking mechanism 20. Arrows indicating the rotational movement are added.

[0064] When the drinker tilts the container while placing his / her lower lip against the drinking spout 19, the drinker's upper lip comes into contact with the upper lip contact portion 27.

[0065] When the upper lip contacts upper lip contact portion 27 and is pressed down, opening / closing valve 22 rotates around pivot shaft 25 to form drinking spout opening 24. Opening 24 allows communication between the inside of the lid (contents side) and the outside of the lid (non-contents side), allowing the beverage to flow out.

[0066] Furthermore, in conjunction with the rotation of the on-off valve 22, the scent window valves 32, 32 rotate upward around the pivot shaft 25 via the pillars 35, 35, forming scent window openings 34, 34. The scent window openings 34, 34 are positioned close to the drinker's nose. The scent spreads three-dimensionally to the left and right, allowing the user to fully enjoy the scent.

[0067] The guide walls 29, 29 prevent liquid from leaking to the left and right from the drinking spout opening 24 and guide the beverage to the drinking spout 19.

[0068] When the upper lip pressing action is released, the elasticity of the connecting portions 23, 23 causes the on-off valve 22 to close and the scent window valves 32, 32 to also close.

[0069] In this way, the movement of the upper lip opens and closes the drinking spout opening 24 and the scent window openings 34, 34. If one wishes to drink a little at a time, the opening and closing movements are repeated.

[0070] The upper lip contact portion 27, the on-off valve 22, the drinking spout opening 24, the rotating shaft 25, the scent window valves 32, 32, and the scent window openings 34, 34 work together to operate as a direct drinking mechanism 20.

[0071] The direct drinking mechanism 20 and the straw holding mechanism 40 are separated by a cutting line 31, and the rotational movement of the direct drinking mechanism 20 is not transmitted to the straw holding mechanism 40.

[0072] 4B is an explanatory diagram of the rotational movement of the straw holding mechanism 40. Arrows indicating the rotational movement are added.

[0073] When the tip of the straw is pressed against the straw valve 41, the straw valve 41 rotates downward around the rotation shaft 43, and a straw insertion hole 42 is formed between the scent window valves 32, 32. The straw S is inserted into the straw insertion hole 42.

[0074] The main flat portion 17 near the pivot shaft 43 is surrounded by the guide walls 29, 29 and the step formed by the stacking groove 18. This increases the rigidity around the main flat portion 17, suppresses co-rotation, and allows the straw valve 41 to open and close smoothly.

[0075] Figure 5 is an explanatory diagram of the holding operation of the straw holding mechanism 40. Figure 5A shows the overall operation, and Figure 5B shows the operation of the main part. Arrows indicating the holding operation are added.

[0076] The straw S slides in the direction of the angle formed by the straw valve 41, and the tip of the straw S is positioned at a corner of the bottom of the container or at the lower end of the body of the container. The center of the straw S is positioned between the incense window valves 32, 32.

[0077] At this time, the straw valve 41 is elastically deformed and functions as a leaf spring, which presses the straw S directly against the drinking mechanism 20.

[0078] The straw S is stably held at two points, the middle and bottom end of the straw S. The top of the straw S is bent at an appropriate angle to form a drinking spout, and the straw holding mechanism 40 in particular holds the orientation of the drinking spout.

[0079] For example, when drinking a beverage through a straw while driving a car, the top of the straw cannot be visually confirmed, and if the orientation of the drinking spout is rotated, the position of the drinking spout cannot be recognized.The straw holding mechanism 40 maintains the orientation of the drinking spout, allowing you to drink a beverage through the straw without visually confirming the position.

[0080] The lower end of the straw S is also held at the bottom edge of the container or the lower end of the container body, allowing the drink to be drunk to the last drop.

[0081] The straw insertion hole 42 is formed as a relatively small opening on the lid top surface 11. As a result, it is more effective at preventing spillage, preventing the entry of dust and insects, and preventing ice from spilling. Furthermore, it is preferable that the straw insertion hole 42 is as close to the center of the lid top surface as possible. When moving the container with a straw inserted, the liquid surface may ripple and the contents may spill out of the straw hole, but the closer the straw insertion hole is to the center of the lid top surface, the better the effect of preventing spillage.

[0082] On the other hand, the high rigidity of the pillars 35, 35 prevents the direct drinking mechanism 20 from operating. That is, the drinking spout opening 24 and the scent window openings 34, 34 are not formed. This also improves the effectiveness of preventing liquid spillage, the entry of dust and insects, and the spillage of ice.

[0083] Focusing on the holding of the center of the straw S, the center of the straw S is lightly pressed by the straw valve 41 against the end face of the M-shaped valley between the scent window valves 32, 32. As a result, the rotation of the direct drinking mechanism 20 is suppressed, which also improves the effects of suppressing spillage of liquid, the intrusion of dust and insects, and the spillage of ice.

[0084] That is, no inconvenience occurs due to the presence of the direct drinking mechanism 20.

[0085] ~Effects of the embodiment~ The present embodiment adds a straw holding mechanism 40 to the reference example of the present application, which is equipped with a direct drinking mechanism 20. Therefore, the present embodiment naturally has the same effects as the reference example of the present application. That is, it has the effects of preventing liquid spillage due to automatic opening and closing, preventing dust and insects from entering, and preventing ice from spilling. In addition, it allows you to enjoy the aroma.

[0086] In addition, straws are not provided to customers who do not need them, which reduces the amount of straws used.

[0087] On the other hand, by adding the straw holding mechanism 40, it is possible to accommodate users who wish to use a straw. The straw holding mechanism 40 holds the straw, allowing the drinker to drink the beverage stably. In this case, no problems caused by the direct drinking mechanism 20 occur.

[0088] In the reference example of the present application (see FIG. 8A), two cutting lines are provided: one corresponding to the on-off valve 22 and the other corresponding to the incense window valve 32. In contrast, in the embodiment of the present application (see FIG. 3), two cutting lines are provided: the cutting line 21 corresponding to the on-off valve 22 and the cutting line 31 corresponding to the incense window valves 32, 32 and the straw valve 41.

[0089] The shapes of the opening and closing valves 22 in the Reference Example and the Embodiment of the present application are similar, and therefore the cutting line shapes are also similar. In contrast, the cutting line shape corresponding to the incense window valve 32 in the Reference Example of the present application is a C-shaped curve, while the cutting line shape corresponding to the incense window valves 32, 32 and the straw valve 41 in the Embodiment of the present application is an M-shaped curve.

[0090] That is, although the M-shaped curve of the present embodiment is somewhat more complicated in shape than the C-shaped curve of the reference example, the number of cutting lines is the same, and therefore there is no need to add a Thomson blade.

[0091] Although it is somewhat complicated to change a Thomson blade that is compatible with a C-shaped curve into a Thomson blade that is compatible with an M-shaped curve, it does not pose a major burden. As a result, cutting accuracy can be ensured with a simple process.

[0092] ~Variations~ Fig. 6A is an explanatory diagram of the rotational movement of the direct drinking mechanism 20 according to a modified example. Fig. 6B is an explanatory diagram of the rotational movement of the straw holding mechanism 40 according to a modified example.

[0093] The configuration of the direct drinking mechanism 20 according to this modification is common to the configuration of the direct drinking mechanism 20 according to the embodiment described above, and the rotational operation is also common. Explanation of the common operation will be omitted.

[0094] In this modified example, the cutting line 31 forms a mountain-shaped curve. The mountain shape is composed of three mountain sections arranged side by side. That is, the mountain sections on both sides form the incense window valves 32, 32, and the mountain in the middle forms the straw valve 41. The incense window valves 32, 32 are provided with pillar sections 35, 35, but the straw valve 41 is on the same plane as the main flat section 17. That is, the pillar section 35 is not provided.

[0095] As a result, the straw valve 41 has lower rigidity than the incense window valves 32, 32. While the incense window valves 32, 32 are linked to the on-off valve 22, the straw valve 41 is not linked to the on-off valve 22.

[0096] Therefore, the straw valve 41 does not rotate in conjunction with the operation of the direct drinking mechanism 20, and the effects of preventing liquid spillage, the entry of dust and insects, and the outflow of ice are maintained.

[0097] The incense window valves 32, 32 have higher rigidity than the straw valve 41. As a result, a rotation axis 43 is formed between the incense window valves 32, 32 near their bases.

[0098] When the tip of the straw is pressed against the straw valve 41, the straw valve 41 rotates downward around the rotation axis 43, and a straw insertion hole 42 is formed.

[0099] At this time, the direction of elastic deformation of the straw valve 41 is opposite to that of the above embodiment, but a similar effect can be expected.

[0100] The modified example is also formed by two cutting lines 21, 31. Although the Thomson blade corresponding to the mountain curve requires somewhat complicated processing, it does not impose a large burden. As a result, cutting accuracy can be ensured with a simple process.

[0101] Another modified example will now be described.

[0102] Fig. 7A is an explanatory diagram of the rotational movement of the direct drinking mechanism 20 of this modified example. Fig. 7B is an explanatory diagram of the rotational movement of the straw holding mechanism 40 of this modified example.

[0103] In this modified example, the cutting line 31 forms an S-shaped curve. That is, the peak side of the S-shape forms the incense window valve 32, and the valley side of the S-shape forms the straw valve 41. The incense window valve 32 is provided with a pillar portion 35, but the straw valve 41 is flush with the main flat portion 17. That is, the pillar portion 35 is not provided.

[0104] That is, while the above embodiment has two incense window valves 32, 32, this modified example has one incense window valve 32. The other configurations are similar to those of the above embodiment, and the operation of the configurations is also similar.

[0105] This modification also has two cutting lines. The Thomson blade corresponding to the S-shaped curve requires somewhat complicated processing, but it does not impose a large burden. As a result, cutting accuracy can be ensured with a simple process. [Explanation of symbols]

[0106] 11 Lid top 14 Lid side fitting part 15 Circumferential skirt 16 Ribs 17 Main part plane part 18 Stacking groove 19 Mouthpiece 20 Direct drinking mechanism 21 Cutting line 22 On-off valve 23 Joint 24 Drinking opening 25 Rotating Axis 27 Upper lip contact part 29 Guide Wall 31 Cutting line 32 Komado-ben 34 Incense window opening 35 pillars 40 Straw holding mechanism 41 Straw valve 42 Straw insertion hole 43 Rotating shaft

Claims

1. The top of the lid and a lid-side fitting portion provided on the periphery of the top surface of the lid and fitted to the container opening edge; A first cutting line and a second cutting line are provided on the top surface of the lid; two connecting portions formed between the ends of the first cutting line and the ends of the second cutting line; a rotation axis formed between the two connecting portions; an on-off valve formed to be surrounded by the first cutting line and the rotation shaft; an upper lip contact portion provided on the on-off valve so as to protrude from the content side to the non-content side, with which the upper lip comes into contact; a scent window valve formed to be surrounded by the second cutting line and the pivot shaft; a direct drinking mechanism in which, when the upper lip contact portion is pressed down, the on-off valve rotates around the rotation axis to form a drinking spout opening, and an incense window valve rotates around the rotation axis in conjunction with the rotation of the on-off valve to form the incense window opening; a straw valve formed in a tongue shape from a part of the second cutting line; a straw holding mechanism that can hold the straw by the elastic force of the straw valve; A lid for a container that is to be equipped with:

2. a pillar portion extending from the upper lip contact portion to the incense window valve across the pivot shaft; Furthermore, In the direct drinking mechanism, the rotation of the opening / closing valve is transmitted to the scent window valve via the pillar portion.

2. The container lid according to claim 1.

3. the second cutting line is formed by an M-shaped curve, Two incense window petals are formed on both sides of the M-shaped ridge, A straw valve is formed in the central valley of the M-shape.

2. The container lid according to claim 1.

4. a first Thomson blade that forms the first cutting line; a second Thomson blade for forming the second cutting line; The first cutting line and the second cutting line are formed on the top surface of the lid by using the cutting lines at the same time.

2. The method for manufacturing a container lid according to claim 1.

Citation Information

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