Beverage container

Abstract

To provide a beverage container that has a spout capable of being sealed by a faucet packing when an opening / closing member is closed, is easy to design, and enables implementation of product downsizing.SOLUTION: This beverage container 1 comprises: a cylindrical container body having a bottom; and a lid body for covering an opening on an upper part of the container body. The lid body includes a lid member, an opening / closing member 23, and a faucet packing 26. The lid member has a spout 28 passing through in the vertical direction. The opening / closing member 23 rotates between a closed state for covering the spout 28 and an open state for opening the spout 28. The faucet packing 26 includes a fixation part and an annular lip part 32. The fixation part is fixed to the opening / closing member 23. When the opening / closing member 23 is in the closed state, the lip part 32 comes into contact with a marginal part of the spout 28. Thereby, the spout 28 is sealed. Adoption of a structure for sealing using the lip part eliminates requirement for difficult design on flexibility of the faucet packing and makes it easy to perform product downsizing in the height direction.SELECTED DRAWING: Figure 3

Description

[Technical field]

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

[0002] Conventionally, there is known a beverage container with a lid for storing a beverage inside. 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. The lid has a drinking spout that is a through hole and an opening / closing member that covers the drinking spout. A user of the beverage container opens the opening / closing member and drinks the beverage in the beverage container through the drinking spout.

[0003] A conventional beverage container is described, for example, in Patent Document 1. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2016-047741 A Summary of the Invention [Problem to be solved by the invention]

[0005] In this type of beverage container, a plug gasket is provided on the underside of the opening / closing member. When the opening / closing member is closed, the plug gasket seals the drinking spout. As described in Patent Document 1, a conventional plug gasket has an elastic protrusion that contacts the drinking spout. In order to allow the elastic protrusion to elastically deform, the inside of the elastic protrusion is hollow. In other words, in the conventional structure, a space is provided between the opening / closing member and the elastic protrusion.

[0006] However, in the conventional structure, it was necessary to provide the above-mentioned space inside the plug gasket while taking into consideration the flexibility of the plug gasket itself, which resulted in problems such as it being difficult to design the plug gasket and the product being larger in height by the amount of the above-mentioned space.

[0007] The present invention has been developed in consideration of the above circumstances, and aims to provide a beverage container that can seal the drinking spout with a plug gasket when the opening and closing member is closed, is easy to design, and enables the product to be made compact. [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 bottomed, cylindrical container body, and a lid body covering an opening at the top of the container body, the lid body having a lid member with a drinking spout that penetrates in the vertical direction, an opening and closing member that rotates between a closed state that covers the drinking spout and an open state that opens the drinking spout, and a stopper gasket that seals the drinking spout, the stopper gasket having a fixing portion fixed to the opening and closing member, and an annular lip portion that contacts the edge of the drinking spout when the opening and closing member is in the closed state.

[0009] According to the present invention, the drinking spout can be sealed with an annular lip. In addition, the design for sealing with the lip does not require complex design related to the flexibility of the plug packing, making the design easier. In addition, the height of the lip can be reduced, making it possible to reduce the size of the product.

[0010] It is also preferable that the plug packing further has a rib protruding from the fixed part, and when the opening / closing member is in the closed state, the rib protrudes from the underside of the fixed part toward the inside of the mouth and does not contact the edge of the mouth. This allows the beverage that has accumulated on the lip of the plug packing to be drawn to the rib by surface tension, and the beverage can be dropped from the rib through the mouth into the container body.

[0011] It is also preferable that the rib has a plurality of convex apexes arranged at intervals from each other. In this case, the plurality of convex apexes make the outer peripheral surface of the rib into a plurality of intermittently arranged surfaces rather than a single continuous annular surface. This reduces the amount of beverage that can adhere to the outer peripheral surface of the rib, and allows the beverage to be guided downward from the rib and dropped efficiently.

[0012] It is also preferred that the spout is an elongated hole having a major axis and a minor axis in a top view, and that the rib has two protruding apexes aligned in the major axis direction. This allows the two protruding apexes to be efficiently arranged while ensuring a gap between the edge of the spout and the protruding apexes. Furthermore, by providing a gap between the two protruding apexes, it is possible to prevent beverage from adhering and accumulating between the edge of the spout and the rib in the minor axis direction where the spacing between the spouts is narrow.

[0013] It is also preferable that the rib further has a recessed portion smoothly connecting the plurality of convex apexes. This can reduce the discomfort in appearance caused by the plurality of convex apexes. It can also increase the strength of the plurality of convex apexes. It also makes it difficult for dirt to accumulate between the plurality of convex apexes.

[0014] In addition, when the opening / closing member is in the closed state, the rib is preferably positioned eccentrically forward with respect to the mouth of the container, so that the distance between the rib and the edge of the mouth of the container can be made wider behind the rib, allowing the beverage drawn to the rib to drop more efficiently into the container body.

[0015] The surfaces of the ribs are preferably smooth and free of irregularities, which allows the beverage attracted to the ribs to drop more efficiently into the container body. Effect of the Invention

[0016] According to the present invention, the drinking spout can be sealed with an annular lip. In addition, the design for sealing with the lip does not require complex design related to the flexibility of the plug packing, making the design easier. In addition, the height of the lip can be reduced, making it possible to reduce the size of the product. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a side view of the beverage container. [Diagram 2] FIG. 2 is a longitudinal sectional view of the beverage container. [Diagram 3] FIG. 2 is a partial longitudinal sectional view of a beverage container. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. 11 is a vertical cross-sectional view of a plug gasket according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0019] <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. FIG. 3 is a partial vertical cross-sectional view of the upper portion 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 of the beverage container 1, which will be described later, to drink the beverage inside as needed. As shown in FIGS. 1 to 3, the beverage container 1 includes a container body 10 and a lid 20.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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 cleaning 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.

[0025] 2 and 3, the lid 20 of this embodiment has a lower member 21, an upper member 22, an opening / closing member 23, a first gasket 24, a second gasket 25, and a plug gasket 26. The lower member 21, the upper member 22, and the opening / closing member 23 are each made of a synthetic resin that is not easily elastically deformed.

[0026] The lower member 21 is a substantially cylindrical member that constitutes the lower part of the lid body 20. With the lid body 20 attached to the container body 10, the lower member 21 is inserted into the opening at the top of the container body 10. A male thread 27 that can be screwed into the female thread 13 of the container body 10 is formed on the outer circumferential surface of the lower member 21. The male thread 27 is a helical protrusion. The lid body 20 is attached to the container body 10 by screwing the male thread 27 into the female thread 13 of the container body 10.

[0027] The upper member 22 is a substantially disk-shaped member located above the lower member 21. The lower member 21 described above has a plurality of claw portions 211. The claw portions 211 extend upward from the outer periphery of the lower member 21, and their tips protrude radially outward. The upper member 22 has step portions 221 with which the claw portions 211 can engage. The plurality of claw portions 211 engage with the step portions 221. This causes the upper member 22 and the lower member 21 to be fixed and integrated together.

[0028] The lower member 21 and the upper member 22 are an example of the "lid member" in the present invention. That is, in this embodiment, the "lid member" is composed of two members, the lower member 21 and the upper member 22. However, the "lid member" may be composed of a single member, or may be composed of three or more members. The lower member 21 and the upper member 22 have a drinking spout 28. The drinking spout 28 is a through hole that passes through the lower member 21 and the upper member 22 in the vertical direction. In addition, the drinking spout 28 is provided at a position eccentric to the front (pouring side) of the center of the lower member 21 and the upper member 22.

[0029] The opening / closing member 23 is a member for opening and closing the drinking spout 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 state in which the drinking spout 28 is covered and an open state in which the drinking spout 28 is opened. The lid 20 also has an operation button 29. The opening / closing member 23 is maintained in the closed state by engaging with the operation button 29. Furthermore, when the user presses the operation button 29, the operation button 29 and the opening / closing member 23 are disengaged, and the opening / closing member 23 can be rotated from the closed state to the open state.

[0030] The first gasket 24 and the second gasket 25 are sealing members for preventing the beverage from leaking out from between the container body 10 and the lid body 20. The first gasket 24 and the second gasket 25 are annular about the central axis A. The first gasket 24 and the second gasket 25 are formed from an elastically stretchable elastomer.

[0031] The first packing 24 is fixed at a position lower than the male thread 27 of the lower member 21. When the male thread 27 of the lid body 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 packing 24 elastically deforms and adheres to the boundary portion 125 between the first inner circumferential surface 121 and the inclined surface 122. This seals the gap between the upper end portion of the first inner circumferential surface 121 and the first packing 24.

[0032] The second packing 25 is fixed at a position above the male thread 27 of the lid body 20. 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 comes into contact with the inner circumferential surface of the container body 10. More specifically, the second packing 25 elastically deforms and adheres to the portion of the second inner circumferential surface 123 of the container body 10 above the female thread 13. This seals the gap between the second inner circumferential surface 123 and the second packing 25.

[0033] The plug gasket 26 is a sealing member for sealing the drinking spout 28 when the opening / closing member 23 is in the closed state. The plug gasket 26 is made of an elastically expandable and contractible elastomer. FIG. 4 is a vertical cross-sectional view of the plug gasket 26. FIG. 5 is a bottom view of the plug gasket 26. As shown in FIGS. 4 and 5, the plug gasket 26 has a fixing portion 31, a lip portion 32, and a rib 34.

[0034] The fixing part 31 is fixed to the lower surface of the opening / closing member 23 (the lower surface in the closed state). More specifically, the fixing part 31 is fixed to the lower surface of the opening / closing member 23 with an adhesive. This integrates the opening / closing member 23 and the plug gasket 26. The bonding surfaces of the opening / closing member 23 and the fixing part 31 have an uneven shape. This increases the area of ​​the bonding surface, allowing the fixing part 31 to be firmly fixed to the opening / closing member 23.

[0035] The lip portion 32 is a thin-walled portion that is elastically deformable. The lip portion 32 protrudes outward and downward from the peripheral edge of the lower end of the fixed portion 31. When the opening / closing member 23 is in the closed state, the lip portion 32 of the plug gasket 26 comes into contact with the edge of the drinking spout 28. More specifically, the upper surface of the edge of the drinking spout 28 is an inclined surface that gradually decreases in diameter toward the drinking spout 28. The lip portion 32 comes into close contact with this inclined surface while elastically deforming. This seals the drinking spout 28.

[0036] Conventionally, when the inside of the plug packing is hollow, it is necessary to provide a space inside the plug packing while considering the flexibility of the plug packing itself. In addition, since it is necessary to secure the space, it is difficult to reduce the size of the plug packing in the height direction. In contrast, if the drinking spout 28 is sealed with the annular lip portion 32 as in the present embodiment, a complex design regarding the flexibility of the plug packing 26 is not required. Therefore, the design of the plug packing 26 is easy. In addition, the space inside the plug packing 26 is not required, and the height of the lip portion 32 can be reduced. Therefore, it is easy to reduce the size of the plug packing 26 in the height direction.

[0037] Furthermore, in this beverage container 1, the gap between the opening / closing member 23 and the plug gasket 26 is filled with adhesive. Therefore, even though the opening / closing member 23 and the plug gasket 26 are separate parts made of different materials, beverages and dirt do not accumulate between these parts. Therefore, the user of the beverage container 1 does not need to remove the plug gasket 26 from the opening / closing member 23 to wash it. This reduces the workload of the user when washing the beverage container 1.

[0038] As shown in FIG. 5, the outer shape of the plug packing 26 is circular in plan view. Therefore, the lip portion 32 is annular in plan view. Also, as shown in FIG. 4, the cross section of the lip portion 32 is an arc shape that bulges outward. Therefore, the inner peripheral surface of the lip portion 32 forms an annular pocket 33 that opens inward. When the beverage container 1 is in use, some of the beverage may accumulate in the pocket 33 of the lip portion 32. In that case, when the opening / closing member 23 is rotated from the closed position to the open position, the beverage accumulated in the pocket 33 may splash around.

[0039] Therefore, the plug packing 26 of this embodiment has a rib 34 for allowing beverages collected in the pocket 33 of the lip portion 32 to fall downward. The rib 34 protrudes from the lower surface of the fixing portion 31 (the lower surface of the fixing portion 31 when the opening / closing member 23 is in the closed state) toward the space inside the lip portion 32. In FIG. 5, the position of the drinking spout 28 relative to the plug packing 26 when the opening / closing member 23 is in the closed state is shown by a two-dot chain line. As shown in FIG. 5, when the opening / closing member 23 is in the closed state, the rib 34 protrudes from the lower surface of the fixing portion 31 toward the inside of the drinking spout 28. However, the rib 34 does not come into contact with the edges of the drinking spout 28 of the upper member 22 and the lower member 21.

[0040] As shown by the dashed line in Figure 4, the beverage that has accumulated in the pocket 33 of the lip portion 32 is attracted to the rib 34 arranged on the inside of the lip portion 32 by surface tension. The beverage that has been attracted to the rib 34 then falls downward by its own weight, running down the surface of the rib 34. At this time, because the rib 34 is not in contact with the edge of the drinking spout 28, the beverage falls into the container body 10 without accumulating between the edge of the drinking spout 28 and the rib 34. As a result, the beverage can be prevented from accumulating in the pocket 33 of the lip portion 32.

[0041] 3 and 5, the rib 34 is positioned eccentrically forward (toward the pouring side) with respect to the drinking spout 28. This allows a wider gap between the rib 34 and the edge of the drinking spout 28 behind the rib 34 (the side opposite the pouring side). This further prevents the beverage drawn to the rib 34 from accumulating between the edge of the drinking spout 28 and the rib 34. This allows the beverage to drop more efficiently from the rib 34 into the container body 10.

[0042] Furthermore, the surface of the rib 34 of the stopper packing 26 is not textured, which is normally done on packings. Therefore, the surface of the rib 34 is smooth and free of irregularities. This allows the beverage attracted to the rib 34 to drop more efficiently into the container body 10. Specifically, the surface roughness of the rib 34 should be smaller than the surface roughness of the first packing 24 and the second packing 25. Furthermore, the surface roughness of the rib 34 of the stopper packing 26 may be smaller than the surface roughness of the lip portion 32.

[0043] In particular, the rib 34 of this embodiment has two convex apexes 341. The two convex apexes 341 are arranged at a distance from each other. When the opening / closing member 23 is in the closed state, the two convex apexes 341 each protrude toward the inside of the drinking spout 28. By forming the rib 34 in this way to have a plurality of convex apexes 341, the outer circumferential surface of the rib 34 becomes a plurality of intermittently arranged surfaces rather than a single continuous annular surface. This reduces the amount of beverage that can adhere to the outer circumferential surface of the rib 34. Therefore, the beverage can efficiently drop downward from the rib 34.

[0044] As shown by the two-dot chain line in Fig. 5, the drinking spout 28 of this embodiment is an elongated hole having a long diameter and a short diameter when viewed from above. The two convex apexes 341 are aligned in the long diameter direction. In this way, the two convex apexes 341 can be efficiently arranged while ensuring a gap between the edge of the drinking spout 28 and each convex apex 341.

[0045] Furthermore, when the drinking spout 28 is an elongated hole, in the short diameter direction where the spacing is narrow, the beverage may accumulate between the edge of the drinking spout 28 and the rib 34, making it difficult for the beverage to drop downward. However, in the shape of this embodiment, a gap is provided between two convex apexes 341 that are aligned in the long diameter direction. This makes it possible to prevent the beverage from accumulating between the edge of the drinking spout 28 and the rib 34 (for example, the part indicated by symbol B in FIG. 5) in the short diameter direction where the spacing of the drinking spout 28 is narrow.

[0046] As shown in Figs. 4 and 5, the rib 34 has a recessed portion 342 between the two convex apexes 341. The recessed portion 342 gently connects the two convex apexes 341 by a concave curved surface. In this way, the appearance of the plug gasket 26 can be made less awkward than if the two convex apexes 341 protruded steeply. In addition, the strength of the two convex apexes 341 can be increased. Furthermore, dirt is less likely to accumulate between the two convex apexes 341, making it easier to keep the plug gasket 26 clean.

[0047] However, if the depth d of the recessed portion 342 is too shallow, the effect of the two convex apexes 341 in promoting the dropping of the beverage is reduced. For this reason, in order to efficiently drop the beverage from each convex apex 341, it is desirable that the depth d of the recessed portion 342 be, for example, 2.0 mm or more. Furthermore, it is more desirable that the depth d of the recessed portion 342 be 2.5 mm or more. Furthermore, it is even more desirable that the depth d of the recessed portion 342 be 3.0 mm or more.

[0048] <2. Modifications> Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment.

[0049] The rib 34 in the above embodiment has two convex apexes 341. However, the rib may have three or more convex apexes arranged at intervals from each other.

[0050] In the above embodiment, the two convex apexes 341 are connected by the concave portion 342 having a gently curved surface. However, the rib does not have to have such a concave portion. In other words, the rib may have a steep concave between multiple convex apexes.

[0051] In addition, the rib does not have to have multiple convex apexes. That is, the rib may have a single convex apex. For example, the plug packing 26 may have a shape as shown in Fig. 6. As shown in Fig. 6, the rib 34 may protrude downward from the fixing portion in a generally trapezoidal shape, and the lower surface thereof may be a flat surface.

[0052] In the above embodiment, the plug packing 26 has the ribs 34. However, the plug packing does not have to have the ribs.

[0053] In the above embodiment, the outer circumferential surface of the container body 10 has a tapered shape that gradually expands in diameter toward the top. However, the outer circumferential surface of the container body may be a straight cylindrical surface.

[0054] 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 may be a straight cylindrical surface that does not have an inclined surface.

[0055] Furthermore, the beverage container 1 in the above embodiment is of a type in which a female thread 13 is provided on the inner peripheral surface of the upper part of the container body 10, and a male thread 27 provided on the lid body 20 is screwed into the female thread 13 (internal thread type). However, the beverage container may be of a type in which a male thread is provided on the outer peripheral surface of the upper part of the container body, and a female thread provided on the lid body is screwed into the male thread (external thread type).

[0056] Furthermore, the beverage container 1 in the above embodiment is a tumbler having a lid 20. However, the beverage container may be a stainless steel mug.

[0057] In addition, the detailed shape of the beverage container may differ from that shown in each drawing of the present application. Furthermore, 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]

[0058] 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 Plug packing 27 Male thread 28 Mouth 29 Operation Buttons 31 Fixed part 32 Lip 33 Pocket 34 Ribs 121 1st inner surface 122 Slope 123 Second inner surface 124 High Water Line 125 Border 211 Claw part 221 Step 222 Hinge 341 Convex top 342 Concave part A center axis

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 body is A lid member having a drinking spout penetrating in the vertical direction; An opening / closing member that rotates between a closed state that covers the drinking spout and an open state that opens the drinking spout; a plug gasket that seals the drinking spout when the opening / closing member is in the closed state; having The plug packing is A fixing portion fixed to the opening / closing member; an annular lip portion that contacts an edge portion of the drinking spout when the opening / closing member is in the closed state; having The lip portion protrudes outwardly and downwardly from the fixing portion.

2. 2. The beverage container of claim 1, The plug packing is A rib protruding from the fixing portion and A beverage container, wherein when the opening / closing member is in the closed state, the rib protrudes from the underside of the fixing part toward the inside of the drinking spout and does not contact the edge of the drinking spout.

3. 3. The beverage container according to claim 2, The rib is A plurality of convex apexes arranged at intervals from one another A beverage container comprising:

4. 4. The beverage container of claim 3, The drinking spout is a long hole having a major axis and a minor axis when viewed from above, A beverage container, wherein the rib has two convex apexes aligned in the major axis direction.

5. A beverage container according to claim 3 or claim 4, The rib is A concave portion that smoothly connects the plurality of convex apexes The beverage container further comprises:

6. A beverage container according to any one of claims 2 to 5, A beverage container, wherein when the opening / closing member is in the closed state, the rib is positioned in a position eccentric to the front relative to the drinking spout.

7. A beverage container according to any one of claims 2 to 6, The beverage container has a smooth surface without any irregularities.

Images