Beverage containers

Abstract

To provide a structure capable of fixing a hollow lid packing to a lid body without using an adhesive in a beverage container.SOLUTION: A beverage container comprises a container body 10 and a plug unit 20. The plug unit 20 covers an upper opening of the container body 10. The plug unit 20 includes a plug body 21, a lid body 23, a lid packing 25 and a fixing member 26. The plug body 21 has a spout 215. The lid body 23 is movable between a closed position of covering the spout 215 and an open position of opening the spout 215. The lid packing 25 tightly fits to the spout 215 when the lid body 23 is in the closed position. The fixing member 26 is fixed to the lid packing 25. Further, the fixing member 26 includes a claw portion 262 to be engaged with the lid body 23. Accordingly, the fixing member 26 is fixed to the lid packing 25 and the claw portion 262 of the fixing member 26 is engaged with the lid body 23.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a beverage container for storing a beverage inside.

Background Art

[0002] Conventionally, beverage containers such as stainless steel bottles are known. The beverage container has a bottomed cylindrical container body and a stopper unit that covers the opening at the upper part of the container body. Conventional beverage containers are described in, for example, Patent Document 1 and Patent Document 2.

[0003] The beverage container of Patent Document 1 is a so-called one-touch open type beverage container that opens the lid by pressing a button. The beverage container of Patent Document 2 is a so-called screw type beverage container that removes the lid from the container body by rotating the lid. In these beverage containers, a packing is attached to the lower surface of the lid. The packing seals the drinking mouth when the lid is closed. Also, the packing can be removed from the lid and washed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] In recent years, there has been a demand to fix gaskets to lids in a way that prevents users from easily removing them, in order to avoid the hassle of removing and cleaning the gaskets. One possible solution is to fix the gasket to the lid with adhesive. However, when a hollow gasket, such as the one described in Patent Document 1, is fixed with adhesive, the adhesive fills the space inside the gasket. This makes it difficult to deform the gasket inward.

[0006] This invention has been made in view of these circumstances, and aims to provide a structure for a beverage container that allows a hollow lid gasket to be fixed to the lid without using an adhesive. [Means for solving the problem]

[0007] The present invention relates to a beverage container for storing a beverage inside, comprising a bottomed cylindrical container body and a stopper unit covering an opening at the top of the container body, wherein the stopper unit comprises a stopper body having a drinking spout, a lid movable between a closed position covering the drinking spout and an open position opening the drinking spout, a hollow lid packing that tightly adheres to the drinking spout when the lid is in the closed position, and a fixing member fixed to the lid packing, the fixing member having a claw portion that engages with the lid body.

[0008] According to the present invention, a fixing member is fixed to the lid gasket, and the claw portion of the fixing member is engaged with the lid body. This makes it possible to fix the hollow lid gasket to the lid body without using adhesive.

[0009] The fixing member is fixed, for example, to the inner surface of the lid gasket. In this way, the fixing member is not exposed to the outside of the lid gasket, making it hygienic.

[0010] Preferably, the upper end of the lid packing is inserted into a hole provided in the lid. This prevents the upper end of the lid packing from expanding, thus suppressing excessive deformation of the lid packing's shape. Therefore, the sealing performance of the lid packing can be improved.

[0011] Furthermore, the fixing member may be fixed to the outer surface of the lid gasket. In this case, a portion of the outer surface of the lid gasket is covered by the fixing member. This prevents the outer surface of the lid gasket from becoming soiled. Also, since the upper end of the lid gasket does not spread out, excessive deformation of the shape of the lid gasket can be prevented. Therefore, the sealing performance of the lid gasket can be improved.

[0012] Furthermore, it is preferable that the stopper unit is positioned inside the lid packing and has a contact portion that contacts the inner surface of the lid packing when the lid is in the closed position, with the contact portion making contact with the drinking spout. The contact portion helps to suppress the amount of deformation of the lid packing. That is, the amount of movement of the lid packing from when it contacts the drinking spout until it completes its deformation is reduced. This improves the operability when closing the lid.

[0013] Furthermore, it is preferable that the contact portion is cylindrical in shape and extends along the center line of the lid packing. This allows the inner surface of the lid packing to contact the entire circumference of the lower end of the contact portion evenly.

[0014] Furthermore, the contact portion may be made movable along the centerline of the lid packing. This allows for adjustment of the pressure inside the beverage container.

[0015] Furthermore, the stopper unit may have an operating member that adjusts the range of motion of the contact portion along the center line. When the pressure inside the beverage container is higher than the ambient pressure, the operating member can be operated to move the contact portion away from the drinking spout before opening the lid. This allows the pressure inside the beverage container to be reduced before opening the lid.

[0016] Furthermore, the fixing member may also have the contact portion. In this case, it is not necessary to provide the contact portion as a separate part from the fixing member. This reduces the number of parts in the plug unit.

[0017] Further, the lid body may have the contact portion. Thereby, as a component separate from the lid body, there is no need to provide the contact portion. Thereby, the number of components of the plug unit can be reduced.

Effects of the Invention

[0018] According to the present invention, a fixing member is fixed to the lid packing, and the claw portion of the fixing member is engaged with the lid body. Thereby, the hollow lid packing can be fixed to the lid body without using an adhesive.

Brief Description of the Drawings

[0019] [Figure 1] It is a front view of a beverage container. [Figure 2] It is a longitudinal sectional view of a beverage container. [Figure 3] It is a partial longitudinal sectional view near the upper part of a beverage container. [[ID=**23]] [Figure 4] It is a partial longitudinal sectional view near the upper part of a beverage container according to a first modified example. [Figure 5] It is a longitudinal sectional view of a beverage container according to a second modified example. [[ID=**28]] [[ID=**29]] [Figure 6] It is a partial longitudinal sectional view near the upper part of a beverage container according to a third modified example. [Figure 7] It is a partial longitudinal sectional view near the upper part of a beverage container according to a fourth modified example. [Figure 8] It is a partial longitudinal sectional view near the upper part of a beverage container according to a fifth modified example. [Figure 9] It is a sectional view taken along line B-B in FIG. 7. [[ID=**40]] [[ID=**41]] [Figure 10] It is a partial longitudinal sectional view near the upper part of a beverage container according to one aspect of the second invention. [[ID=**43]] [[ID=**44]] [Figure 11] It is a partial longitudinal sectional view near the upper part of a beverage container according to another aspect of the second invention. [[ID=**46]] [[ID=**47]] [Figure 12] It is a longitudinal sectional view of a beverage container according to another aspect of the second invention. [[ID=**49]] [[ID=**50]]

Embodiments for Carrying Out the Invention

[0020] **Note**: There are some consecutive tags in the original text that seem to be duplicates or have some formatting issues (marked with asterisks above). This might be an error in the original input. The translation is done as accurately as possible based on the provided text.Embodiments of the present invention will be described below with reference to the drawings.

[0021] <1. Composition of beverage containers> Figure 1 is a front view of a beverage container 1 according to one embodiment of the present invention. Figure 2 is a longitudinal cross-sectional view of the beverage container 1 (cross-sectional view along line AA in Figure 1). This beverage container 1 is a bottle (water bottle) capable of storing beverages (liquids) such as tea or mineral water inside. The user of the beverage container 1 can carry the beverage container 1 containing the beverage and, if necessary, open the lid 23 of the beverage container 1 (described later) to drink the beverage inside. As shown in Figures 1 and 2, the beverage container 1 comprises a container body 10 and a stopper unit 20.

[0022] The container body 10 is the main component that stores the beverage inside. For example, stainless steel is used as the material for the container body 10. The container body 10 has a bottomed cylindrical shape. That is, the container body 10 has a disc-shaped bottom 11 and a cylindrical side wall portion 12 that extends upward from the edge of the bottom 11. The bottom 11 and the side wall portion 12 each have a double-wall structure with a vacuum layer between the inner and outer surfaces. This allows the beverage stored inside the container body 10 to be kept warm or cold.

[0023] The side wall portion 12 has a body portion 121, a shoulder portion 122, and a neck portion 123. The body portion 121 is a cylindrical portion that extends upward from the edge of the bottom portion 11. The shoulder portion 122 is a substantially conical portion that extends upward and inward from the upper end of the body portion 121. The neck portion 123 is a substantially cylindrical portion that extends upward from the upper end of the shoulder portion 122. The diameter of the neck portion 123 is smaller than the diameter of the body portion 121. In addition, a male screw 124 is formed on the outer circumferential surface of the neck portion 123.

[0024] The stopper unit 20 is a unit that covers the opening at the top of the container body 10. The stopper unit 20 is detachable from the container body 10. The user of the beverage container 1 carries the beverage container 1 with the stopper unit 20 attached to the container body 10. The user of the beverage container 1 removes the stopper unit 20 from the container body 10 when refilling the beverage or washing the beverage container 1.

[0025] Figure 3 is a partial longitudinal cross-sectional view of the upper part of the beverage container 1. As shown in Figures 1 to 3, the stopper unit 20 of this embodiment includes a stopper body 21, a stopper gasket 22, a lid 23, an opening button 24, a lid gasket 25, and a fixing member 26. The stopper body 21, lid 23, opening button 24, and fixing member 26 are each made of a synthetic resin that is resistant to elastic deformation.

[0026] The stopper body 21 is the part that is fixed to the container body 10. In this embodiment, the stopper body 21 is composed of two parts: a first stopper member 211 and a second stopper member 212. The first stopper member 211 and the second stopper member 212 are fixed to each other and integrated. The stopper body 21 may also be composed of a single part.

[0027] The first stopper member 211 covers the periphery of the neck portion 123. A female thread 213 is formed on the inner circumferential surface of the first stopper member 211. The stopper body 21 is attached to the container body 10 by screwing this female thread 213 onto the male thread 124 described above. The second stopper member 212 is fitted into an opening provided in the center of the first stopper member 211. The second stopper member 212 has a drinking spout 215. The drinking spout 215 is a through hole that penetrates the second stopper member 212 in the vertical direction.

[0028] The stopper packing 22 is a ring-shaped sealing member. The stopper packing 22 is made of an elastic material such as an elastomer that can be elastically deformed. The stopper packing 22 is interposed between the container body 10 and the stopper body 21. More specifically, the stopper packing 22 is fitted onto the outer circumference of the lower end of the second stopper member 212. Alternatively, the stopper packing 22 is fixed to the outer circumference of the lower end of the second stopper member 212 with adhesive. When the stopper unit 20 is attached to the container body 10, the stopper packing 22 is in close contact with the inner circumferential surface of the neck portion 123. This prevents the beverage stored inside the container body 10 from leaking out through the gap between the container body 10 and the stopper body 21.

[0029] The lid 23 is a component for opening and closing the drinking spout 215. The lid 23 rotates around a hinge 216 provided on the stopper body 21 between a closed position (the position shown in Figures 1 to 3) that covers the drinking spout 215 and an open position that opens the drinking spout 215. The lid 23 is also constantly biased toward the open position by the elastic force of a first spring 217 provided on the hinge 216.

[0030] The open button 24 is a button for opening the lid 23. The open button 24 has a hook 241 at its upper end. When the lid 23 is in the closed position, the hook 241 engages with a recess provided at the front end of the lid 23. This keeps the lid 23 in the closed position.

[0031] Furthermore, the open button 24 is rotatable around a pivot axis 240 that extends in the left-right direction. When the lid 23 is closed, the elastic force of the second spring 242 located inside the open button 24 maintains the open button 24 in a position where it engages with the lid 23 (the position shown in Figures 1 to 3). However, when the user presses the bottom of the open button 24, the position of the open button 24 tilts, causing the hook 241 to disengage from the recess in the lid 23. This causes the lid 23 to rotate from the closed position to the open position.

[0032] The lid packing 25 is a sealing member fixed to the lid 23 via a fixing member 26, which will be described later. The lid packing 25 is made of an elastic material such as an elastically deformable elastomer or silicone. As shown in Figure 3, the lid packing 25 has an upper cylindrical portion 251 and a dome-shaped portion 252. The upper cylindrical portion 251 is a cylindrical part that extends along the center line L of the lid packing 25. The dome-shaped portion 252 is located below the upper cylindrical portion 251 and is a hemispherical part that bulges downward. Since the lid packing 25 is hollow, the dome-shaped portion 252 can be deformed inward.

[0033] When the lid 23 is in the closed position, the lid packing 25 adheres tightly to the drinking spout 215. More specifically, the surface of the dome-shaped portion 252 elastically deforms and adheres tightly to the edge of the drinking spout 215. This seals the drinking spout 215. Therefore, when the beverage container 1 is carried with the lid 23 closed, the beverage stored in the container body 10 is prevented from leaking out of the drinking spout 215.

[0034] The fixing member 26 is a member for fixing the lid packing 25 to the lid body 23. As shown in Figure 3, the fixing member 26 has a flange portion 261, a claw portion 262, and a contact portion 263. The flange portion 261 and the contact portion 263 are positioned inside the lid packing 25. The lid packing 25 has a step 253 between the upper cylindrical portion 251 and the dome-shaped portion 252. The outer circumference of the flange portion 261 engages with the lower surface of the step 253. This fixes the fixing member 26 to the lid packing 25.

[0035] The claw portion 262 is the part that engages with the lid 23. In this embodiment, the fixing member 26 is provided with a plurality of claw portions 262. These plurality of claw portions 262 are located at the upper end of the fixing member 26. Each of the plurality of claw portions 262 protrudes in a direction away from the center line L of the lid packing 25. On the other hand, the lid 23 has a circular hole 231. The hole 231 penetrates the lid 23 in the vertical direction. The plurality of claw portions 262 engage with the upper surface of the edge of the hole 231. This prevents the fixing member 26 from moving downward relative to the lid 23.

[0036] Furthermore, the upper surface of the step 253 of the lid packing 25 contacts the lower surface of the edge of the hole 231 in the lid body 23. This prevents the lid packing 25 from moving upward relative to the lid body 23. As a result, the lid packing 25 and the fixing member 26 are fixed to the lid body 23.

[0037] The contact portion 263 is the part that contacts the inner surface of the dome-shaped portion 252 of the lid packing 25 when the dome-shaped portion 252 deforms. The contact portion 263 protrudes downward from the lower surface of the flange portion 261. The shape of the contact portion 263 is cylindrical along the center line L of the lid packing 25. As described above, when the lid 23 is placed in the closed position, the lid packing 25 deforms inward by making close contact with the drinking spout 215. At this time, the inner surface of the dome-shaped portion 252 comes into contact with the contact portion 263. This suppresses excessive deformation of the dome-shaped portion 252.

[0038] As described above, in this beverage container 1, a fixing member 26 is fixed to the lid gasket 25, and the claw portion 262 of the fixing member 26 is engaged with the lid body 23. This allows the hollow lid gasket 25 to be fixed to the lid body 23 without using adhesive. Since there is no structure in which adhesive is filled between the lid body 23 and the lid gasket 25, a cavity can be maintained inside the lid gasket 25. Therefore, the dome-shaped portion 252 of the lid gasket 25 can be deformed inward in a good manner and can be tightly fitted to the drinking spout 215. Thus, the drinking spout 215 can be securely sealed.

[0039] In particular, in the structure of this embodiment, a portion of the fixing member 26 is positioned inside the lid gasket 25. The fixing member 26 is then fixed to the inner surface of the lid gasket 25. This prevents the fixing member 26 from being exposed on the outside of the lid gasket 25, thus keeping it clean and hygienic. It also improves the aesthetic appearance of the outer surface of the lid gasket 25. Furthermore, the lid gasket 25 and the fixing member 26 as a whole can be made more compact.

[0040] Furthermore, in the structure of this embodiment, the upper end of the lid packing 25 is inserted into the hole 231 provided in the lid 23. Therefore, the upper end of the lid packing 25 does not spread outward. Consequently, when the lid packing 25 is in close contact with the drinking spout 215, excessive deformation of the lid packing 25 can be suppressed. This makes it possible to further improve the sealing performance of the drinking spout 215 by the lid packing 25.

[0041] Furthermore, in the structure of this embodiment, a contact portion 263 is positioned inside the lid packing 25. When the lid 23 is in the closed position, the inner surface of the dome-shaped portion 252, which is in close contact with the drinking spout 215, comes into contact with the contact portion 263. This reduces the amount of movement required for the dome-shaped portion 252 from the moment it contacts the drinking spout 215 until it completes its deformation. Therefore, the operability when the user pushes the lid 23 into the closed position can be improved.

[0042] Furthermore, in the structure of this embodiment, the shape of the contact portion 263 is cylindrical, extending along the center line L of the lid packing 25. With this shape, the inner surface of the dome-shaped portion 252 that is in close contact with the drinking spout 215 makes even contact with the entire circumference of the lower end of the contact portion 263. This further improves the sealing performance of the drinking spout 215 by the lid packing 25.

[0043] Furthermore, in the structure of this embodiment, a contact portion 263 is provided on the fixing member 26 for fixing the lid packing 25 to the lid body 23. This eliminates the need to provide the contact portion 263 as a separate part from the fixing member 26. This reduces the number of parts in the stopper unit 20.

[0044] <2. Variant> Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. Below, various modifications will be described, focusing on the differences from the above embodiment.

[0045] <2-1. First variation> Figure 4 is a partial longitudinal cross-sectional view of the upper part of the beverage container 1 according to the first modified example. This first modified example differs from the above embodiment in that the fixing member 26 is located outside the lid packing 25, rather than inside the lid packing 25.

[0046] In the example shown in Figure 4, an annular recess 254 is provided on the outer circumferential surface of the lid packing 25. The recess 254 is located between the upper cylindrical portion 251 and the dome-shaped portion 252. On the other hand, the fixing member 26 has an annular projection 264 at its lower end that protrudes inward. This annular projection 264 engages with the recess 254 of the lid packing 25. As a result, the fixing member 26 is fixed to the lid packing 25.

[0047] In the example shown in Figure 4, the lid 23 has a projection 232 that protrudes downward from its lower surface. On the other hand, the fixing member 26 has a claw portion 262 that protrudes inward from its inner circumferential surface. The claw portion 262 engages with the projection 232 by passing through a through hole provided in the upper cylindrical portion 251 of the lid packing 25 and a through hole provided in the projection 232 of the lid 23. As a result, the lid packing 25 and the fixing member 26 are fixed to the lid 23.

[0048] As shown in the example in Figure 4, the fixing member 26 is fixed to the outer surface of the lid gasket 25. In this way, a portion of the outer surface of the lid gasket 25 is covered by the fixing member 26. This has the advantage of preventing the outer surface of the lid gasket 25 from becoming dirty. In addition, the upper end of the lid gasket 25 does not spread outwards. Therefore, when the lid gasket 25 is in close contact with the drinking spout 215, it is advantageous in that the shape of the lid gasket 25 does not become excessively distorted. This makes it possible to further improve the sealing performance of the drinking spout 215 by the lid gasket 25.

[0049] <2-2. Second variation> Figure 5 is a longitudinal cross-sectional view of the beverage container 1 according to the second modified example. The beverage container 1 in the above embodiment was a so-called one-touch open type beverage container in which the lid 23 rotates around the hinge 216, whereas the beverage container 1 of this second modified example differs in that the lid 23 is separated from the stopper body 21 by rotating the lid 23, which is a so-called screw type beverage container.

[0050] In the example shown in Figure 5, the lid 23 is detachably attached to the stopper body 21, which is fixed to the container body 10. The lid 23 has a cylindrical fastening portion 233. The fastening portion 233 protrudes downward from the lower surface of the lid 23. A female thread 234 is formed on the inner circumferential surface of the fastening portion 233. On the other hand, a male thread 218 is formed on the outer circumferential surface of the stopper body 21.

[0051] When attaching the lid 23 to the stopper body 21, the female thread 234 of the lid 23 is screwed clockwise into the male thread 218 of the stopper body 21 when viewed from above. This positions the lid 23 in the closed position (position in Figure 5) that covers the drinking spout 215. Conversely, rotating the female thread 234 of the lid 23 counterclockwise against the male thread 218 of the stopper body 21 when viewed from above removes the lid 23 from the stopper body 21. That is, the lid 23 is positioned in the open position that opens the drinking spout 215.

[0052] The lid gasket 25 is fixed to the underside of the lid 23 via a fixing member 26. When the lid 23 is in the closed position, the lid gasket 25 makes tight contact with the drinking spout 215. This seals the drinking spout 215.

[0053] Similar to the embodiment described above, the fixing member 26 is fixed to the inner surface of the lid gasket 25. In addition, the claw portion 262 provided at the upper end of the fixing member 26 is engaged with the lid 23. In this way, even in a screw-type beverage container 1, by fixing the fixing member 26 to the lid gasket 25 and engaging the claw portion 262 of the fixing member 26 with the lid 23, the hollow lid gasket 25 can be fixed to the lid 23 without using adhesive.

[0054] Furthermore, similar to the embodiment described above, the fixing member 26 in Figure 5 also has a contact portion 263. The contact portion 263 is located inside the lid packing 25. When the lid 23 is in the closed position, the inner surface of the lid packing 25, which is in close contact with the drinking spout 215, comes into contact with the contact portion 263. Therefore, the amount of movement of the lid packing 25 from the time it contacts the drinking spout 215 until it completes its deformation can be reduced. This improves the operability for the user when closing the lid 23.

[0055] <2-3. Third Variation> Figure 6 is a partial longitudinal cross-sectional view of the upper part of the beverage container 1 according to the third modified example. In this third modified example, the structure of the lid packing 25 and the fixing member 26 is the same as in the first modified example described above. However, in the first modified example, there is no contact portion 263 inside the lid packing 25, whereas in the third modified example, there is a contact portion 263 inside the lid packing 25.

[0056] In the example shown in Figure 6, the lid 23 has a contact portion 263. The contact portion 263 protrudes downward from the lower surface of the projection 232. The shape of the contact portion 263 is cylindrical, along the center line L of the lid packing 25. When the lid 23 is placed in the closed position, the lid packing 25 deforms inward by making close contact with the drinking spout 215. At this time, the inner surface of the dome-shaped portion 252 comes into contact with the contact portion 263. This suppresses excessive deformation of the dome-shaped portion 252.

[0057] As shown in Figure 6, the lid 23 is provided with a contact portion 263. This eliminates the need to provide the contact portion 263 as a separate part from the lid 23. This reduces the number of parts in the plug unit 20.

[0058] <2-4. Fourth Variation> Figures 7 and 8 are partial longitudinal cross-sectional views of the upper part of the beverage container 1 according to the fourth modified example. Figure 9 is a cross-sectional view taken along line BB in Figure 7. In this fourth modified example, the structure of the lid packing 25 and the fixing member 26 is the same as in the first and third modified examples described above. However, the fourth modified example differs from the first and third modified examples in that a movable contact portion 263 is provided inside the lid packing 25.

[0059] In the examples shown in Figures 7 to 9, the contact portion 263 is provided as an independent component separate from the fixing member 26 and the lid 23. The contact portion 263 is movable inside the lid packing 25 and the fixing member 26, along the center line L of the lid packing 25.

[0060] In the examples shown in Figures 7 to 9, the stopper unit 20 has an operating member 27. The operating member 27 is attached to the lid 23. The operating member 27 is also movable in the front-rear direction between a first position shown in Figure 7 and a second position shown in Figure 8. A rail 265 extending in the front-rear direction is provided at the upper end of the contact portion 263. The operating member 27 moves in the front-rear direction while its lower end is in contact with the rail 265.

[0061] The height of the upper surface of the rail 264 gradually decreases as you move from front to back. Therefore, by switching the position of the operating member 27 between the first position and the second position, the range of motion of the contact portion 263 in the vertical direction (along the center line L of the lid packing 25) can be adjusted.

[0062] As shown in Figure 7, the user of beverage container 1 closes the lid 23 with the operating member 27 in the first position. The pressure inside beverage container 1 may become higher than the ambient pressure due to evaporation of the beverage, etc. If the lid 23 is opened in this state, high-pressure gas or water droplets may spray out from the drinking spout 215. Therefore, in this beverage container 1, before opening the lid 23, the operating member 27 is switched from the first position to the second position, as shown in Figure 8. This increases the vertical range of motion of the contact portion 263. Consequently, the pressure inside beverage container 1 pushes the lid packing 25, and the contact portion 263 moves upward (away from the drinking spout 215). This creates a gap between the drinking spout 215 and the lid packing 25, and the gas inside the container body 10 is discharged from the drinking spout 215.

[0063] As shown in the structures of Figures 7 to 9, by operating the operating member 27 before opening the lid 23, some of the gas inside the container body 10 can be released. Therefore, the pressure inside the container body 10 can be reduced before opening the lid 23.

[0064] <2-5. Other variations> In the above embodiment, the fixing member 26 was arranged inside the lid packing 25, and the fixing member 26 had a contact portion 263. However, in a structure in which the fixing member 26 is arranged inside the lid packing 25, the contact portion 263 may be provided inside the lid packing 25 as a separate member from the fixing member 26. Also, in a structure in which the fixing member 26 is arranged inside the lid packing 25, the contact portion 263 may not be provided.

[0065] Furthermore, in the above embodiment, the shape of the contact portion 263 was cylindrical. However, the shape of the contact portion 263 may be other shapes, such as a polygonal tube or a cylindrical shape.

[0066] Furthermore, in the above embodiment, the beverage container 1 opens the drinking spout 215 by rotating the lid 23 relative to the stopper body 21 around the hinge 216. However, the beverage container 1 may also open the drinking spout 215 by removing the lid 23 relative to the stopper body 21.

[0067] Furthermore, the detailed shape of the beverage container may differ from that shown in the figures of this application. In addition, the elements that appear in the above embodiments and modifications may be combined as appropriate, to the extent that no inconsistencies arise.

[0068] <3. Inventions from other perspectives> Furthermore, if the first objective is set as "to reduce the deformation of the lid gasket and improve the operability when closing the lid," then an invention (hereinafter referred to as "the second invention") can be extracted from the above embodiments, second modification, third modification, and fourth modification, in which the "fixing member" is not a required requirement, but instead the "contact part" is a required requirement. This second invention is, for example, "A beverage container that stores beverages inside, A cylindrical container body with a bottom, A stopper unit that covers the opening at the top of the container body, Equipped with, The aforementioned plug unit is A stopper body having a drinking spout, A lid that is movable between a closed position covering the drinking spout and an open position opening the drinking spout, When the lid is in the closed position, a hollow lid gasket that tightly seals against the drinking spout, A contact portion is provided inside the lid packing, and when the lid is in the closed position, the inner surface of the lid packing, which is in close contact with the drinking spout, A beverage container having [a certain feature]. This is the result.

[0069] According to this second invention, the contact portion can suppress the amount of deformation of the lid gasket. That is, the amount of movement of the lid gasket from the moment it contacts the drinking spout until it completes its deformation is reduced. This improves the operability when closing the lid. It is also possible to combine the elements that appeared in the above embodiments and modifications with this second invention.

[0070] Figure 10 is a partial longitudinal cross-sectional view of the upper part of a beverage container 1 according to one embodiment of the second invention. In the example of Figure 10, the stopper unit 20 does not have a fixing member 26. The lid packing 25 is detachable from the lid body 23. The stopper unit 20 in Figure 10 also has a contact portion 263 inside the lid packing 25. The shape of the contact portion 263 is cylindrical along the center line L of the lid packing 25. The upper end of the contact portion 263 is fixed to the lower surface of the lid body 23.

[0071] When the lid 23 is positioned in the closed position, the lid packing 25 deforms inward by making close contact with the drinking spout 215. At this time, the inner surface of the lid packing 25 comes into contact with the lower end of the contact portion 263. This reduces the amount of movement required for the lid packing 25 from the moment it contacts the drinking spout 215 until it completes its deformation. Therefore, the ease of operation for the user when pushing the lid 23 into the closed position is improved.

[0072] Figure 11 is a partial longitudinal cross-sectional view of the upper part of a beverage container 1 according to another embodiment of the second invention. The example in Figure 11 combines the structure of Figure 10 with the structure of the fourth modified example described above. Similar to Figure 10, the stopper unit 20 in Figure 11 also does not have a fixing member 26. Furthermore, the stopper unit 20 in Figure 11 has a contact portion 263 inside the lid packing 25. However, the contact portion 263 in Figure 11 is movable inside the lid packing 25 along the center line L of the lid packing 25.

[0073] Furthermore, in the example shown in Figure 11, the stopper unit 20 has an operating member 27 similar to that in the fourth modified example. By switching the position of this operating member 27, the range of motion of the contact portion 263 along the center line L can be adjusted. Therefore, if the pressure inside the beverage container 1 is higher than the ambient pressure, the contact portion 263 can be moved away from the drinking spout 215 by operating the operating member 27 before opening the lid 23. This allows the pressure inside the beverage container 1 to be reduced before opening the lid 23.

[0074] Figure 12 is a longitudinal cross-sectional view of a beverage container 1 according to another embodiment of the second invention. The example in Figure 12 is a screw-type beverage container, similar to the second modified example described above. However, while the stopper unit 20 had a fixing member 26 in the second modified example, the stopper unit 20 in the example of Figure 12 does not have a fixing member 26. The lid packing 25 is detachable from the lid 23. Furthermore, the stopper unit 20 in Figure 12 has a contact portion 263 inside the lid packing 25. Therefore, similar to the example in Figure 10 described above, the amount of deformation of the lid packing 25 can be suppressed when closing the lid 23. This improves the operability when closing the lid 23. [Explanation of symbols]

[0075] 1 beverage container 10 Container body 20 Plug Units 21 Stopper body 22. Stopper packing 23 Lid 24 Open button 25 Lid gasket 26 Fixing member 27 Operating Member 215 drinking spout 231 holes 262 Nail part 263 Contact part L center line

Claims

1. A beverage container for storing beverages inside, A cylindrical container body with a bottom, A stopper unit that covers the opening at the top of the container body, Equipped with, The aforementioned plug unit is A stopper body having a drinking spout, A lid that is movable between a closed position covering the drinking spout and an open position opening the drinking spout, The lid gasket has a hollow, hemispherical, dome-shaped portion that fits tightly against the drinking spout when the lid is in the closed position, A fixing member fixed to the aforementioned lid packing, It has, The aforementioned fixing member is The claw portion that engages with the lid, A contact portion disposed inside the lid packing, It has, When the lid is in the open position, the inner surface of the dome-shaped portion does not come into contact with the contact portion. A beverage container in which the inner surface of the dome-shaped portion contacts the contact portion when the lid is in the closed position.

2. A beverage container according to claim 1, The fixing member is a beverage container that is fixed to the inner surface of the lid gasket.

3. A beverage container according to claim 1 or claim 2, The upper end of the lid packing is inserted into a hole provided in the lid of a beverage container.

4. A beverage container according to claim 1, A beverage container in which the contact portion is cylindrical and extends along the center line of the lid packing.

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