Beverage container

Abstract

To provide a beverage container which can suppress, when putting too much beverage into a container body, part of the beverage from leaking out to outside of the container.SOLUTION: A beverage container 1 comprises: a bottomed cylindrical container body 10; and a lid body 20 which covers an aperture in an upper part of the container body 10. The container body 10 includes a female screw 13 on an inner peripheral surface. The lid body 20 includes a male screw 27 that is screwed onto the female screw 13. The lid body 20 includes: a first packing 24 which is positioned below the male screw 27; and a second packing 25 which is positioned over the male screw 27. Therefore, even though part of the beverage enters into a space over the first packing 24 when the lid body 20 is attached to the container body 10, the second packing 25 can suppress the beverage from leaking out to outside of the beverage container 1.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a beverage container for storing a beverage therein. [Background technology]

[0002] Conventionally, a beverage container with a lid for storing a beverage inside is known. The beverage container has a cylindrical container body with a bottom and a lid that covers an opening at the top of the container body. In this type of beverage container, the space between the container body and the lid is liquid-tightly sealed to prevent the beverage from leaking when the container is carried. Specifically, the lid is attached to the container body by screwing a male screw and a female screw, and the space between the container body and the lid is sealed with a packing.

[0003] There are two methods for screwing the container body and the lid: one is to provide a male thread on the outer peripheral surface of the upper part of the container body and screw a female thread on the lid onto this male thread (external thread type), and the other is to provide a female thread on the inner peripheral surface of the upper part of the container body and screw a male thread on the lid onto this female thread (internal thread type).

[0004] For example, the beverage container of Patent Document 1 employs the above-mentioned internal screw system. Therefore, in the beverage container of Patent Document 1, the male-threaded portion of the lid is inserted into the opening at the top of the container body. Then, a packing provided at the lower part of the male screw is brought into contact with the inner peripheral surface of the container body, thereby liquid-tightly sealing the gap between the container body and the lid. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2016-047741 A Summary of the Invention [Problem to be solved by the invention]

[0006] Some container bodies have a full water line formed on the inner circumferential surface thereof, which indicates the upper limit of the amount of beverage that can be stored. A user of a beverage container usually pours beverage into the container body so that the amount does not exceed the full water line. However, if a user mistakenly pours an amount of beverage that exceeds the full water line, in the structure of Patent Document 1, when the lid is attached to the container body, part of the beverage will enter the space above the packing. This will cause the beverage to leak out from between the container body and the lid.

[0007] The present invention has been developed in consideration of the above circumstances, and aims to provide a beverage container that can prevent part of the beverage from leaking out of the container even if too much beverage is poured into the container body. [Means for solving the problem]

[0008] The beverage container of the present invention is a beverage container for storing a beverage inside, and comprises a cylindrical container body with a bottom, and a lid body covering an opening at the top of the container body, a portion of the lid body being inserted into the opening at the top of the container body, the container body having a first thread, and the lid body having a second thread that threadably engages with the first thread, a first annular gasket located below the second thread, and a second annular gasket located above the second thread, and when the second thread of the lid body is threadedly engaged with the first thread of the container body, the first gasket and the second gasket seal the gap between the container body and the lid body.

[0009] According to the present invention, even if too much beverage is poured into the container body, leakage of the beverage outside the beverage container can be suppressed when the lid body is attached to the container body.

[0010] It is also preferable that the container body has a female thread as the first thread on its inner circumferential surface, and the lid body has a male thread as the second thread on its outer circumferential surface, which makes it possible to prevent the size of the lid body from expanding upward or outward at the upper part of the container body when comparing container bodies capable of storing the same amount of beverage.

[0011] In addition, it is preferable that the inner circumferential surface of the container body includes a cylindrical first inner circumferential surface, an inclined surface that expands radially outward as it moves upward from the upper end of the first inner circumferential surface, and a cylindrical second inner circumferential surface that extends upward from the upper end of the inclined surface and has the female thread formed thereon. This makes it possible to increase the capacity per unit height near the opening at the top of the container body. Therefore, it is possible to further prevent the beverage from spilling out of the container body.

[0012] In addition, it is preferable that, in a state where the male thread of the lid body is screwed into the female thread of the container body, the first packing contacts the boundary between the first inner circumferential surface and the inclined surface, and the second packing contacts a portion of the second inner circumferential surface above the female thread. In this case, the first packing contacts a convex boundary portion located between the first inner circumferential surface and the inclined surface. This can increase the adhesion of the first packing to the container body.

[0013] It is also preferable that the second packing has a lip portion that contacts the inner peripheral surface of the container body, and the lip portion protrudes obliquely radially outward and upward, thereby reducing the resistance force when attaching the lid to the container body.

[0014] It is also preferable that the lid body has a lower member and an upper member disposed on the upper side of the lower member, and the second packing is sandwiched between the lower member and the upper member, thereby making it possible to fix the second packing to the lid body without using an adhesive. Effect of the Invention

[0015] According to the present invention, even if part of the beverage enters the space above the first gasket when the lid is attached to the container body, the second gasket can prevent the beverage from leaking out of the beverage container. [Brief description of the drawings]

[0016] [Figure 1] FIG. 2 is a side view of the beverage container. [Diagram 2]FIG. 2 is a vertical cross-sectional view of the beverage container. [Diagram 3] FIG. 2 is a partial longitudinal sectional view of a beverage container. [Figure 4] FIG. 4 is a partial cross-sectional view of the second packing. [Diagram 5] FIG. 11 is a partial vertical cross-sectional view of a second packing according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0018] <1. Beverage container composition> FIG. 1 is a side view of a beverage container 1 according to one embodiment of the present invention. FIG. 2 is a vertical cross-sectional view of the beverage container 1. The beverage container 1 is a tumbler with a lid that can store a beverage (liquid) such as tea or mineral water inside. A user of the beverage container 1 can carry the beverage container 1 with the beverage stored therein in a bag or the like, and can open an opening / closing member 23 (described later) of the beverage container 1 to drink the beverage inside as needed. As shown in FIGS. 1 and 2, the beverage container 1 includes a container body 10 and a lid 20.

[0019] The container body 10 is a main body part that stores a beverage inside. The container body 10 is made of, for example, stainless steel. The container body 10 has a cylindrical shape with a bottom. That is, the container body 10 has a disk-shaped bottom 11 and a substantially cylindrical side wall 12 that extends upward from the edge of the bottom 11. The bottom 11 and the side wall 12 each have a double structure, and have a vacuum layer between the inner surface and the outer surface. This allows the beverage stored inside the container body 10 to be kept warm or cold.

[0020] The outer peripheral surface of the side wall portion 12 has a shape of an inverted truncated cone. That is, the diameter of the outer peripheral surface of the side wall portion 12 gradually increases as it goes upward. The outer diameter of the upper end portion of the container body 10 is larger than the outer diameter of the lower end portion of the container body 10. By making the outer peripheral surface of the side wall portion 12 into a tapered shape that gradually increases in diameter as it goes upward, it is possible to prevent the container body 10 from slipping out of the user's hand when the user grasps the outer peripheral surface of the side wall portion 12.

[0021] The inner circumferential surface of the side wall portion 12 has a first inner circumferential surface 121, an inclined surface 122, and a second inner circumferential surface 123. The first inner circumferential surface 121 is a cylindrical surface centered on the central axis A of the container body 10. A full water line 124 indicating the upper limit of the beverage that can be stored is formed near the upper end of the first inner circumferential surface 121. The inclined surface 122 is a surface that expands radially outward as it extends upward from the upper end of the first inner circumferential surface 121. The inner diameter of the inclined surface 122 gradually expands as it extends upward.

[0022] The second inner circumferential surface 123 is a cylindrical surface centered on the central axis A. The second inner circumferential surface 123 extends upward from the upper end of the inclined surface 122. An inner diameter r2 of the second inner circumferential surface 123 is larger than an inner diameter r1 of the first inner circumferential surface 121. The second inner circumferential surface 123 is formed with a female thread 13. The female thread 13 is a spiral groove.

[0023] The lid body 20 is a component that covers the opening at the top of the container body 10. The lid body 20 is detachable from the top of the container body 10. A user carries the beverage container 1 with the lid body 20 attached to the container body 10. In addition, the user removes the lid body 20 from the container body 10 when refilling the beverage or washing the beverage container 1. With the lid body 20 attached to the container body 10, a portion of the lid body 20 is inserted into the opening at the top of the container body 10.

[0024] FIG. 3 is a partial longitudinal sectional view of the vicinity of the upper part of the beverage container 1. As shown in FIGS. 2 and 3, the lid 20 of the present embodiment has a lower member 21, an upper member 22, an opening / closing member 23, a first packing 24, a second packing 25, and a lid packing 26. The lower member 21, the upper member 22, and the opening / closing member 23 are each formed of a synthetic resin that is difficult to elastically deform.

[0025] The lower member 21 is a substantially cylindrical member that constitutes the lower part of the lid 20. In a state where the lid 20 is attached to the container body 10, the lower member 21 is inserted into the opening at the upper part of the container body 10. On the outer peripheral surface of the lower member 21, a male screw 27 that can be screwed with the female screw 13 of the container body 10 is formed. The male screw 27 is a spiral protrusion. The lid 20 is attached to the container body 10 by screwing the male screw 27 with the female screw 13 of the container body 10.

[0026] The upper member 22 is a substantially disc-shaped member located above the lower member 21. The above-described lower member 21 has a plurality of claw portions 211. The claw portions 211 extend upward from the outer peripheral portion of the lower member 21, and the tips thereof protrude outward in the radial direction. The upper member 22 has a step portion 221 with which the claw portions 211 can engage. The plurality of claw portions 211 engage with the step portion 221. Thereby, the upper member 22 and the lower member 21 are fixed and integrated. Further, the upper member 22 has a drinking port 28. The drinking port 28 is a through hole that penetrates the upper member 22 in the vertical direction.

[0027] The opening / closing member 23 is a member for opening and closing the drinking port 28 of the upper member 22. The opening / closing member 23 rotates about a hinge 222 provided on the upper member 22 between a closed position that covers the drinking port 28 and an open position that opens the drinking port 28. Further, the lid 20 has an operation button 29. The opening / closing member 23 is maintained in the closed position by engaging with the operation button 29. Further, when the user presses the operation button 29, the engagement between the operation button 29 and the opening / closing member 23 is disengaged, and the opening / closing member 23 can be rotated from the closed position to the open position.

[0028] The first packing 24 is a sealing member for preventing the beverage stored in the space inside the first inner circumferential surface 121 of the container body 10 (hereinafter referred to as the "first space S1") from entering the space between the lower member 21 of the lid body 20 and the inclined surface 122 and second inner circumferential surface 123 of the container body 10 (hereinafter referred to as the "second space S2"). The first packing 24 is annular about the central axis A. The first packing 24 is made of an elastically stretchable elastomer.

[0029] The first packing 24 is fixed to a position lower than the male screw 27 of the lower member 21. In this embodiment, the first packing 24 has a thick first fixing portion 241 and a thin first lip portion 242. The first fixing portion 241 is fixed to the lower end of the lower member 21. More specifically, the first fixing portion 241 is fixed to the lower end of the lower member 21 by adhesive. The bonding surface between the lower member 21 and the first fixing portion 241 has an uneven shape. This increases the area of ​​the bonding surface, so that the first fixing portion 241 can be firmly fixed to the lower member 21. The first lip portion 242 protrudes obliquely downward from the first fixing portion 241 toward the radially outward and downward side.

[0030] When the male thread 27 of the lid 20 is screwed into the female thread 13 of the container body 10, the first packing 24 comes into contact with the inner circumferential surface of the container body 10. More specifically, the first lip portion 242 of the first packing 24 comes into contact with the boundary portion 125 between the first inner circumferential surface 121 and the inclined surface 122 of the container body 10. The first lip portion 242 comes into close contact with the boundary portion 125 between the first inner circumferential surface 121 and the inclined surface 122 while elastically deforming. This seals the gap between the upper end portion of the first inner circumferential surface 121 and the first packing 24.

[0031] In particular, boundary 125 between first inner circumferential surface 121 and inclined surface 122 is a convex curved surface in a vertical cross section. By bringing first lip portion 242 into contact with such convex boundary 125, the adhesion of first gasket 24 to container body 10 can be improved.

[0032] The second packing 25 is a sealing member for preventing the beverage that has entered the second space S2 described above from leaking to the outside of the container body 10. The second packing 25 is in an annular shape centered on the central axis A. Further, the second packing 25 is formed of an elastomer that can elastically expand and contract.

[0033] The second packing 25 is fixed at a position above the male screw 27 of the lid body 20 described above. FIG. 4 is a partial cross-sectional view of the second packing 25. As shown in FIG. 4, the second packing 25 has a thick second fixing portion 251 and a thin second lip portion 252. And the second fixing portion 251 is sandwiched between the lower member 21 and the upper member 22. During the manufacture of the lid body 20, the lower member 21 and the upper member 22 are integrated by engaging the claw portion 211 of the lower member 21 with the step portion 221 of the upper member 22, and the second packing 25 is fixed to the lower member 21 and the upper member 22. Thereby, the second packing 25 can be fixed to the lid body 20 without using an adhesive. The second lip portion 252 projects obliquely upward from the second fixing portion 251 toward the radially outer side and the upper side.

[0034] When the male screw 27 of the lid body 20 is screwed into the female screw 13 of the container body 10, the second packing 25 contacts the inner peripheral surface of the container body 10. More specifically, the second lip portion 252 of the second packing 25 contacts a portion above the female screw 13 of the second inner peripheral surface 123 of the container body 10. The second lip portion 252 closely adheres to the second inner peripheral surface 123 while elastically deforming. Thereby, the gap between the second inner peripheral surface 123 and the second packing 25 is sealed.

[0035] The lid gasket 26 is a seal member for sealing the drinking spout 28 when the opening / closing member 23 is placed in the closed position. The lid gasket 26 is formed of an elastically stretchable elastomer. The lid gasket 26 has a thick third fixing portion 261 and a thin third lip portion 262. The third fixing portion 261 is fixed to the lower surface of the opening / closing member 23 (the lower surface when placed in the closed position). More specifically, the third fixing portion 261 is fixed to the lower surface of the opening / closing member 23 with an adhesive. The adhesive surface between the opening / closing member 23 and the third fixing portion 261 has an uneven shape. This increases the area of ​​the adhesive surface, so that the third fixing portion 261 can be firmly fixed to the opening / closing member 23. The third lip portion 262 protrudes obliquely downward from the peripheral portion of the lower end of the third fixing portion 261 toward the outside and the lower side.

[0036] When the opening / closing member 23 is placed in the closed position, the lid gasket 26 comes into contact with the edge of the drinking spout 28 of the upper member 22. More specifically, the third lip portion 262 of the lid gasket 26 comes into contact with the edge of the drinking spout 28. The third lip portion 262 elastically deforms while closely adhering to the edge of the drinking spout 28. This seals the drinking spout 28.

[0037] When refilling the beverage container 1 having the above configuration with a beverage, the user first removes the lid body 20 from the container body 10. Then, the user pours the beverage into the container body 10. At this time, the user, in principle, ensures that the upper surface of the beverage stored in the container body 10 does not exceed the full water line 124. If the upper surface of the beverage does not exceed the full water line 124, the entire amount of the beverage is stored in the first space S1 inside the first inner circumferential surface 121. In this case, even with the lid body 20 attached, the upper surface of the beverage does not exceed the first packing 24.

[0038] Furthermore, when a hot beverage is poured into the container body 10, if the top surface of the beverage is too close to the spout 28, the area around the spout 28 becomes hot, making it difficult for the user to drink the beverage. From this perspective, too, the full water line 124 is set at a position away from the spout 28 and below.

[0039] However, if a user mistakenly stores an amount of beverage in the container body 10 that exceeds the full water line 124, when the lid body 20 is attached to the top of the container body 10, some of the beverage will go over the first packing 24 and enter the second space S2. However, even in this case, in the beverage container 1 of this embodiment, the upper end of the second space S2 is sealed by the second packing 25. Therefore, it is possible to prevent the part of the beverage that has entered the second space S2 from leaking out of the beverage container 1.

[0040] In this embodiment, the inner diameter r2 of the second inner circumferential surface 123 constituting the second space S2 is larger than the inner diameter r1 of the first inner circumferential surface 121 constituting the first space S1. Therefore, the capacity per unit height of the second space S2 can be made larger than when the inner diameter r2 of the second inner circumferential surface 123 is the same as the inner diameter r1 of the first inner circumferential surface 121. This makes it possible to further prevent the beverage that has entered the second space S2 from overflowing beyond the upper end of the container body 10.

[0041] In addition, when the male thread 27 of the lid body 20 is screwed into the female thread 13 of the container body 10, the second packing 25 rotates while contacting the second inner peripheral surface 123 of the container body 10. At this time, if the second lip portion 252 of the second packing 25 protrudes straight sideways or diagonally downward from the second fixing portion 251, the frictional force between the second inner peripheral surface 123 and the second packing 25 increases. As a result, the resistance force when the user rotates the lid body 20 increases. However, in the structure of this embodiment, the second lip portion 252 protrudes diagonally upward from the second fixing portion 251. This makes it possible to reduce the frictional force generated between the second inner peripheral surface 123 and the second packing 25 compared to the case where the second lip portion 252 protrudes straight sideways or diagonally downward. Therefore, the user can attach the lid body 20 to the container body 10 with a light force.

[0042] <2. Modifications> Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment.

[0043] FIG. 5 is a partial vertical cross-sectional view of the second packing 25 according to one modified example. The second packing 25 in FIG. 5 does not have a second lip portion 252. The outer peripheral surface of the second packing 25 has a corner portion 253 protruding radially outward. The corner portion 253 contacts the second inner peripheral surface 123 of the container body 10. In this way, the contact area of ​​the second packing 25 with the container body 10 can be reduced compared to the case where the second lip portion 252 is contacted with the container body 10 while being bent. Therefore, when attaching the lid body 20 to the container body 10, the user can rotate the lid body 20 with respect to the container body 10 with less force.

[0044] The second packing 25 does not necessarily have to contact the container body 10. For example, the second packing 25 and the second inner peripheral surface 123 of the container body 10 may face each other in the radial direction with a very small gap therebetween. Even in this case, it is sufficient that the beverage is held between the second packing 25 and the second inner peripheral surface 123 by surface tension, thereby substantially sealing the gap between the container body 10 and the lid 20.

[0045] In the above embodiment, the first packing 24 is fixed to the lower member 21 of the lid body 20 with an adhesive. This makes the first packing 24 non-disassembleable. However, the first packing 24 may be attached to the lower member 21 of the lid body 20 in a disassembled state. In this case, the user of the beverage container 1 can remove the first packing 24 from the lower member 21 and wash it.

[0046] In the above embodiment, the second packing 25 is sandwiched and fixed between the lower member 21 and the upper member 22 of the lid body 20. However, the second packing 25 may be fixed to the lower member 21 or the upper member 22 of the lid body 20 with an adhesive. The second packing 25 may be attached to the lower member 21 or the upper member 22 of the lid body 20 in a disassembled state. If the second packing 25 is disassembled, the user of the beverage container 1 can remove the second packing 25 for cleaning.

[0047] In the above embodiment, the second lip portion 252 of the second packing 25 protrudes obliquely radially outward and upward from the second fixed portion 251. However, the second lip portion 252 may protrude from the second fixed portion 251 in another direction.

[0048] In the above embodiment, the first gasket 24 contacts the boundary between the first inner circumferential surface 121 and the inclined surface 123 of the container body 10. However, the first gasket 24 may contact another position of the container body 10.

[0049] In the above embodiment, the inner circumferential surface of the container body 10 has the first inner circumferential surface 121, the inclined surface 122, and the second inner circumferential surface 123. However, the inner circumferential surface of the container body 10 may be a straight cylindrical surface that does not have an inclined surface.

[0050] Furthermore, the beverage container 1 of the above embodiment was a so-called "internal thread type" having a female thread 13 as a "first thread" on the inner peripheral surface of the upper part of the container body 10 and a male thread 27 as a "second thread" on the outer peripheral surface of the lid body 20. However, the beverage container of the present invention may be a so-called "external thread type" having a male thread as a "first thread" on the outer peripheral surface of the upper part of the container body 10 and a female thread as a "second thread" on the inner peripheral surface of the lid body 20. Even in the case of an external thread type, by providing packings (first packing and second packing) above and below the screwing points of the threads, leakage of the beverage when too much beverage is poured can be suppressed.

[0051] However, by adopting the "internal thread type" as in the above embodiment, it is possible to prevent the lid body 20 from protruding radially outward at the top of the container body 10, compared to the case of the "external thread type".

[0052] In addition, in the beverage container 1 of the above embodiment, the opening / closing member 23 is opened and the beverage is drunk from the drinking spout 28 provided in the lid body 20. However, the lid body 20 does not have to be equipped with the drinking spout 28 and the opening / closing member 23. In other words, the beverage container 1 may be designed such that the lid body 20 is removed from the container body 10 and the beverage in the container body 10 is drunk.

[0053] In addition, the detailed shape of the beverage container may differ from that shown in each drawing of the present application. In addition, the elements appearing in the above-mentioned embodiment and modified examples may be appropriately combined within a range not causing a contradiction. [Explanation of symbols]

[0054] 1 beverage container 10 Container body 11 Bottom 12 Side wall 13 Female thread 20 Lid 21 Lower member 22 Upper member 23 Opening and closing members 24 First packing 25 Second packing 26 Lid gasket 27 Male thread 28 Mouth 29 Operation Buttons 121 1st inner surface 122 Slope 123 2nd inner peripheral surface 124 High Water Line 125 Border 211 Claw part 221 Step 222 Hinge 241 1st fixed part 242 First lip 251 2nd fixed part 252 Second lip 261 3rd fixed part 262 Third lip A center axis S1 1st space S2 2nd space r1 Inner diameter of the first inner surface r2 Inner diameter of the second inner surface

Claims

1. A beverage container for storing a beverage therein, A cylindrical container body with a bottom; A lid body that covers an opening at the top of the container body; Equipped with The lid is partially inserted into the opening at the top of the container body, The container body has a first screw, The lid body is a second screw that is engaged with the first screw; a first packing having an annular shape and located below the second screw; a second annular packing located above the second screw; having When the second thread of the lid is screwed into the first thread of the container body, the first packing and the second packing seal a gap between the container body and the lid, The container body has an internal thread as the first thread on an inner circumferential surface, The lid body has an external thread as the second thread on an outer circumferential surface, The second packing is A lip portion that contacts the inner peripheral surface of the container body having A beverage container, wherein the lip portion protrudes obliquely radially outward and upward without contacting the inner peripheral surface of the container body.

2. 2. The beverage container of claim 1, The inner circumferential surface of the container body is A cylindrical first inner circumferential surface; an inclined surface that expands radially outward as it moves upward from an upper end of the first inner circumferential surface; a cylindrical second inner circumferential surface extending upward from an upper end of the inclined surface and having the female thread formed thereon; 23. A beverage container comprising:

3. 3. The beverage container according to claim 2, In a state where the male thread of the lid body is screwed into the female thread of the container body, the first packing contacts a boundary portion between the first inner circumferential surface and the inclined surface, The second gasket contacts a portion of the second inner surface above the female thread.

4. A beverage container according to any one of claims 1 to 3, The lid body is The lower member, An upper member disposed above the lower member; having The second gasket is sandwiched between the lower member and the upper member.

Images