Plug and beverage container

Abstract

To provide a plug and a beverage container that, when tilted to a certain degree or more or completely turned on its side in a state of being installed in the container, can reduce the likelihood of leakage of the contents of the container when pressure is released and can reduce the likelihood of the pressure release valve not operating as intended. The plug (100) of the present invention includes a drinking port (120a) and a pressure release valve (130) disposed at a position different from the position at which the drinking port is disposed, and the mass on the drinking port side is greater than the mass on the pressure release valve side.

Description

Technical Field

[0001] This invention relates to a stopper. Furthermore, this invention relates to a beverage container fitted with said stopper. Background Technology

[0002] Previously, a gas exhaust plug body was proposed, which has the following structure: a middle plug having an opening that is fitted into the mouth of a container; and an outer cap that seals the mouth of the container, and a plurality of exhaust holes are provided on the upper side of the outer cap, a spring member and a movable valve having an insertion hole are provided in the center of the inner side, and a spindle plug having a vent groove is inserted into the insertion hole in the center of the movable valve (for example, see Japanese Patent Application Publication No. 6-47160, etc.).

[0003] [Existing technical documents]

[0004] [Patent Literature]

[0005] [Patent Document 1] Japanese Patent Publication No. 6-47160 Summary of the Invention

[0006] [The problem the invention aims to solve]

[0007] Furthermore, when such conventional plugs are tilted to a certain degree or completely tilted when installed in a container, the pressure relief valve is immersed in the contents of the container. Therefore, there is a high possibility that the contents of the container will leak out during gas release (pressure relief), or that the movable valve (pressure relief valve) will not operate as required.

[0008] The objective of this invention is to provide a plug that, when tilted to a certain degree or completely laid sideways while installed in a container, reduces the possibility of leakage of the container's contents during pressure release and also reduces the possibility of the pressure release valve malfunctioning.

[0009] [Technical means to solve the problem]

[0010] The plug of the present invention comprises:

[0011] Drinking mouth; and

[0012] The pressure relief valve is located in a position different from that of the drinking spout.

[0013] The mass of the drinking spout side is greater than the mass of the pressure relief valve side.

[0014] According to the structure described, when the container is tilted to a certain degree or completely tilted while installed, the pressure relief valve is located higher than the drinking spout, thus reducing the possibility of the pressure relief valve being immersed in the contents of the container. Therefore, when the stopper is tilted to a certain degree or completely tilted while installed in the container, the possibility of leakage of the container's contents during pressure relief can be reduced, and the possibility of the pressure relief valve malfunctioning can also be reduced.

[0015] The plug of the present invention preferably further includes:

[0016] A space-forming section is formed on the lower side of the drinking spout.

[0017] The inlet of the pressure relief valve is formed in the space forming portion.

[0018] According to the structure, when the plug is tilted to a certain degree or completely tilted while installed in the container, the contents of the container flow into the space, and air moves towards the pressure relief valve. Therefore, when the plug is tilted to a certain degree or completely tilted while installed in the container, the possibility of leakage of the container contents can be further reduced during pressure relief, and the possibility of the pressure relief valve malfunctioning can be further reduced.

[0019] The plug of the present invention preferably further includes:

[0020] The stopper is detachably mounted on the drinking spout.

[0021] The plug is installed via a strip on the opposite side of the drinking port of the pressure-releasing valve.

[0022] According to the described structure, when the plug is tilted to a certain degree or completely tilted while installed in the container, the strip can be used to reduce the possibility that the pressure relief valve will completely fall to the lower side. Therefore, the possibility that the pressure relief valve will be immersed in the contents of the container can be reduced.

[0023] The preferred plug of the present invention is...

[0024] A passage is formed between the inlet and outlet of the pressure relief valve, and this passage extends in a direction having an up-down component.

[0025] According to the structure, when not only gas but also bubbles enter the inlet of the pressure-opening valve, the passage can be used to capture part or all of the bubbles, thereby reducing the amount of bubbles leaking to the outside of the plug or preventing bubbles from leaking to the outside of the plug.

[0026] The plug of the present invention preferably further includes:

[0027] A shoulder member having an opening that allows the drinking spout to protrude upwards and covering the top of the pressure relief valve; and

[0028] The first sealing component separates the outlet of the pressure relief valve from the opening.

[0029] According to the described structure, when not only gas but also bubbles enter the inlet of the pressure relief valve, the possibility of bubbles leaking out from the opening of the shoulder member can be reduced by using the first sealing member. Furthermore, in the plug body, the pressure relief valve is covered by the shoulder member. Therefore, the ingenuity of the plug body can be improved.

[0030] The preferred plug of the present invention is...

[0031] The pressure relief valve has a valve body and a force-applying member that applies force to the valve body toward the inlet side.

[0032] Based on the structure, and according to the relationship that pressure = force / area, the working force of the force-applying component can be controlled simply by changing the force-applying load of the force-applying component.

[0033] The beverage container of the present invention includes:

[0034] The plug; and

[0035] A bottomed cylindrical container for mounting the plug.

[0036] According to the aforementioned structure, when the beverage container is tilted to a certain degree or completely tilted, the pressure relief valve is located higher than the drinking spout, reducing the possibility of the pressure relief valve being submerged in the contents of the container. Therefore, when the beverage container is tilted to a certain degree or completely tilted, the possibility of leakage of the container's contents during pressure relief can be reduced, and the possibility of the pressure relief valve malfunctioning can also be reduced.

[0037] The preferred beverage container of the present invention is,

[0038] When viewed from above, the pressure relief valve faces the drinking spout across the extension line of the container's cylindrical axis.

[0039] According to the structure described, the desired effect can be maximized.

[0040] The preferred beverage container of the present invention is,

[0041] The stopper includes the following components: a shoulder member having an opening that allows the drinking spout to protrude upwards and covers the top of the pressure-releasing valve; and a first sealing member that separates the outlet of the pressure-releasing valve from the opening.

[0042] The beverage container further includes a second sealing member that seals the plug mounting portion of the container with the shoulder member.

[0043] According to the structure, when not only gas but also bubbles enter the inlet of the pressure relief valve, not only can the first sealing member reduce the possibility of bubbles leaking from the opening of the shoulder member, but the second sealing member can also reduce the possibility of bubbles leaking from between the plug mounting part of the container and the shoulder member. Attached Figure Description

[0044] Figure 1 This is a perspective view of a beverage container according to an embodiment of the present invention. Furthermore, the outlet on the cylindrical wall portion of this figure is blocked by a plug.

[0045] Figure 2 This is a perspective view of a beverage container according to an embodiment of the present invention. Furthermore, the outlet on the cylindrical wall portion of this figure is not blocked by a plug.

[0046] Figure 3 This is a plan view of a beverage container according to an embodiment of the present invention. Furthermore, the outlet on the cylindrical wall in this figure is blocked by a plug.

[0047] Figure 4 for Figure 3 The figure shows the AA cross-section. Furthermore, the depiction of the vacuum double-walled container is partially omitted in this figure to indicate that the pressure adjustment mechanism is not in operation.

[0048] Figure 5 for Figure 3 A cross-sectional view (AA) showing the outlet of the middle cylindrical wall not blocked by the plug. Furthermore, the depiction of the vacuum double-walled container is partially omitted in this figure to indicate that the pressure regulating mechanism is not in operation.

[0049] Figure 6 This is an enlarged cross-sectional view of the area near the pressure adjustment mechanism according to an embodiment of the present invention. Furthermore, this figure shows the state in which the pressure adjustment mechanism is in operation.

[0050] Figure 7 This figure shows an example of a beverage container tilted horizontally according to an embodiment of the present invention. Furthermore, in this figure... Figure 1 Cut the beverage container at a height slightly lower than the inner cylinder of the container.

[0051] [Explanation of Symbols]

[0052] 10: Beverage containers

[0053] 100: Plug

[0054] 110: Shoulder component

[0055] 111o: Opening

[0056] 112o: Opening

[0057] 120a: Upper sidewall (drinking spout)

[0058] 120b: Lower sidewall portion (space-forming portion)

[0059] 120e: Lower receiving wall section (space forming section)

[0060] 120f: Front receiving wall section (space forming section)

[0061] 120i: Third washer mounting wall (space forming part)

[0062] 130: Pressure regulating mechanism (pressure relief valve)

[0063] 131: Valve body

[0064] 132: Force-applying component

[0065] 140: Sai

[0066] 200: Vacuum double-walled container (container)

[0067] 300: Strip

[0068] AX: Cylindrical shaft

[0069] OP2: Opening (inlet of the pressure relief valve)

[0070] OP3: Opening (outlet of the pressure relief valve)

[0071] PK1: First gasket (first sealing component)

[0072] PK2: Second gasket (second sealing component)

[0073] SP2: Internal space (the space below the drinking spout)

[0074] SP3: Internal Space (Passage) Detailed Implementation

[0075] <Structure of a beverage container according to an embodiment of the present invention>

[0076] The beverage container 10 of the present invention is as follows: Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the beverage container 10 includes a vacuum double-walled container 200, a stopper 100, a second gasket PK2, and a strip 300. These structural components will be described in detail below. Furthermore, the beverage container 10 is assembled by mounting the stopper 100 onto the vacuum double-walled container 200.

[0077] 1. Vacuum double-walled container

[0078] The vacuum double-walled container 200 is made of stainless steel or other metals, and such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, it is mainly formed by an inner cylinder 210 and an outer cylinder 220. Specifically, as... Figures 4-6 As shown, after the upper end of the top wall portion 214 (described later) of the inner cylinder 210 and the upper end of the top wall portion 224 (described later) of the outer cylinder 220 are joined in such a way that an insulating space is formed between the inner cylinder 210 and the outer cylinder 220, the insulating space is set to a vacuum state, thereby forming a vacuum double-layer container 200.

[0079] Inner cylinder 210 Figures 4-6 As shown, it is mainly formed by an inner cylinder sidewall portion 211, an inner cylinder bottom wall portion (not shown), a stepped portion 213, a top wall portion 214, and an internal thread portion 215. The inner cylinder sidewall portion 211 is generally cylindrical. The central portion of the inner cylinder bottom wall portion arches spherically towards the opening side (upper side), and the corners are concave arc-shaped. In addition, the inner cylinder bottom wall portion is formed on the lower side of the inner cylinder sidewall portion 211. The stepped portion 213 is a portion with a cut-off conical cylinder shape (frustum conical cylinder shape), and as shown... Figure 4 , Figure 5 and Figure 7 As shown, a portion 211 is formed between the inner cylinder sidewall portion 211 and the top wall portion 214, connecting the inner cylinder sidewall portion 211 and the top wall portion 214. The top wall portion 214 is generally cylindrical in shape, as shown... Figures 4-6 As shown, it extends upward from the upper end of the stepped portion 213. The internal thread portion 215 is as follows... Figures 4-6 As shown, the inner circumferential surface of the top wall portion 214 can be screwed into the external thread portion 120h (described later) of the cylindrical wall portion 120 of the plug body 100.

[0080] Outer tube 220 Figure 1 , Figure 2 , Figures 4-6 As shown, it is mainly formed by an outer cylinder sidewall portion 221, an outer cylinder bottom wall portion 222, a stepped portion 223, and a top wall portion 224. The outer cylinder sidewall portion 221, like the inner cylinder sidewall portion 211, is generally cylindrical. The outer cylinder bottom wall portion 222 is generally disc-shaped, as shown... Figure 1 and Figure 2 As shown, it is the lower end portion that joins to the side wall portion 221 of the outer cylinder. The stepped portion 223 is a portion with a cut-off conical cylinder shape (frustum conical cylinder shape), and as... Figures 4-6 As shown, it is formed between the outer cylinder sidewall portion 221 and the top wall portion 224, connecting the outer cylinder sidewall portion 221 and the top wall portion 224. The top wall portion 224 is generally cylindrical in shape, as shown... Figures 4-6As shown, it extends upward from the upper end of the step 223.

[0081] In addition, such as Figures 4-6 As shown, a second washer PK2 (described later) is installed in the recess formed by the step portion 223 and the top wall portion 224.

[0082] 2. Plug

[0083] 100 plugs Figures 1-5 As shown, it mainly includes a shoulder member 110, a cylindrical wall portion 120, a pressure adjustment mechanism 130, and a plug 140. These structural components will be described in detail below.

[0084] (1) Shoulder component

[0085] Shoulder member 110 is a member formed of resin or the like, and as Figures 1-6 As shown, the pressure adjustment mechanism 130 mainly includes an outer shoulder member 111 and an inner shoulder member 112. These structural components will be described in detail below.

[0086] (1-1) Outer shoulder member

[0087] Outer shoulder member 111 Figures 1-6 As shown, it is mainly formed by a top wall portion 111a, a stepped portion 111b, a side wall portion 111c, and a claw portion 111d. The top wall portion 111a is a generally disc-shaped part that constitutes the upper wall of the outer shoulder member 111, and as shown... Figure 2 , Figures 4-6 As shown, a circular opening 111o is formed in the central part. Furthermore, as... Figure 4 As shown, the upper sidewall portion 120a of the cylindrical wall portion 120 is inserted through the opening 111o. The stepped portion 111b is as follows... Figures 1-6 As shown, it is formed between the top wall portion 111a and the side wall portion 111c, connecting the top wall portion 111a and the side wall portion 111c. The side wall portion 111c is generally cylindrical in shape, as shown... Figure 1 , Figure 2 , Figures 4-6 As shown, the claw 111d extends downward from the lower end of the step 111b to the upper end of the recess 112p of the side wall portion 112c of the inner shoulder member 112. Figures 4-6 As shown, a protrusion extending downward from the inner edge of the top wall portion 111a (i.e., the circumference of the opening 111o) cooperates with the top wall portion 112a of the inner shoulder member 112 (described later) to clamp the first washer PK1 (described later).

[0088] (1-2) Inner shoulder component

[0089] Inner shoulder member 112 Figures 4-6As shown, it is mainly formed by a top wall portion 112a, a stepped portion 112b, and a side wall portion 112c. The top wall portion 112a is a generally disc-shaped part that constitutes the upper wall of the inner shoulder member 112, and as shown... Figures 4-6 As shown, a circular opening 112o is formed in the central part. Furthermore, as... Figure 4 As shown, the upper sidewall portion 120a of the cylindrical wall portion 120 is inserted through the opening 112o. Furthermore, as... Figures 4-6 As shown, the diameter of opening 112o is slightly larger than the diameter of opening 111o of the outer shoulder member 111, and the area of ​​opening 112o overlaps with the entire area of ​​opening 111o of the outer shoulder member 111 in planar perspective. Furthermore, in top view, the center of opening 112o is located at the same position as the center of opening 111o of the outer shoulder member 111. Step 112b is as follows... Figures 4-6 As shown, it is formed between the top wall portion 112a and the side wall portion 112c, connecting the top wall portion 112a and the side wall portion 112c. The side wall portion 112c is generally cylindrical in shape, as shown... Figures 4-6 As shown, it extends downward from the lower end of the step 112b. Furthermore, as... Figures 4-6 As shown, an inwardly recessed annular portion 112p is formed from the lower part to the middle part of the sidewall portion 112c. A large circular annular portion 302 of the strip 300 (described later) is embedded in this recess 112p.

[0090] (2) Cylindrical wall

[0091] The cylindrical wall portion 120 is a component formed of resin or the like, and as... Figure 2 , Figures 4-6 As shown, a portion of it protrudes upward through the opening 111o of the outer shoulder member 111 and the opening 112o of the inner shoulder member 112, and is mainly formed by the upper side wall portion 120a, the lower side wall portion 120b, the eaves portion 120c, the upper receiving wall portion 120d, the lower receiving wall portion 120e, the front receiving wall portion 120f, the internal thread portion 120g, the external thread portion 120h, and the third washer mounting wall portion 120i. Furthermore, as... Figures 4-6 As shown, a first washer PK1 and a third washer PK3 are installed on the cylindrical wall portion 120. The upper side wall portion 120a is generally cylindrical in shape. Furthermore, as... Figure 2 , Figure 4 and Figure 5 As shown, an internally threaded portion 120g is formed from the lower part to the middle part of the inner circumferential surface of the upper sidewall portion 120a. Furthermore, as... Figure 2 and Figure 5As shown, the internal spaces SP1 and SP2 (described later) of the upper sidewall portion 120a together function as a beverage passage, and the opening on the upper side of the upper sidewall portion 120a serves as the beverage outlet MO, thus the upper sidewall portion 120a functions as a drinking spout. The lower sidewall portion 120b is generally cylindrical in shape. Furthermore, as... Figure 4 and Figure 5 As shown, an external thread portion 120h is formed on the lower sidewall portion 120b, extending from the lower part of the outer peripheral surface to the middle part. Furthermore, as... Figure 4 and Figure 6 As shown, a notch is formed at the upper rear end of the lower side wall portion 120b, and an opening OP3 is formed by arranging an upper receiving wall portion 120d above the notch. The eaves 120c is as follows... Figures 4-6 As shown, the top wall portion 112a of the inner shoulder member 112 extends outward and inward from the boundary portions of the upper side wall portion 120a and the lower side wall portion 120b. The upper receiving wall portion 120d is generally disc-shaped, as shown in the figure. Figures 4-6 As shown, it is formed on the upper side of the rear portion of the lower sidewall 120b. Furthermore, as... Figures 4-6 As shown, an opening OP1 is formed in the center of the upper receiving wall portion 120d. The lower receiving wall portion 120e is generally disc-shaped, as shown... Figures 4-6 As shown, it is formed on the lower side of the rear portion of the lower sidewall 120b. Furthermore, as... Figures 4-6 As shown, an opening OP2 is formed in the center of the lower receiving wall portion 120e. The front receiving wall portion 120f is partially circular in shape when viewed from above, as... Figures 4-6 As shown, it extends upward from the leading edge of the lower receiving wall portion 120e. Here, as... Figures 4-6 As shown, a cylindrical portion having an internal space SP3 is formed by a lower side wall portion 120b, an upper receiving wall portion 120d, a lower receiving wall portion 120e, and a front receiving wall portion 120f. The internal space SP3 is as follows: Figures 4-6 As shown, it extends in the vertical direction. Furthermore, in the internal space SP3, as... Figures 4-6 As shown, a pressure adjustment mechanism 130 (described later) is provided. The internal thread portion 120g, as described above, extends from the lower part of the inner circumferential surface of the upper sidewall portion 120a to the middle part, and can be screwed into the external thread portion 143b (described later) of the plug 140. The external thread portion 120h, as described above, extends from the lower part of the outer circumferential surface of the lower sidewall portion 120b to the middle part, and can be screwed into the internal thread portion 215 of the inner cylinder 210. The third washer mounting wall portion 120i is generally cylindrical, as shown... Figures 4-6 As shown, it is formed on the lower side of the lower sidewall portion 120b. Furthermore, here as... Figures 4-6As shown, an internal space SP2 is formed by the lower side wall portion 120b, the lower receiving wall portion 120e, the front receiving wall portion 120f, and the third gasket mounting wall portion 120i. The internal space SP2, together with the internal space SP1 of the upper side wall portion 120a, functions as a beverage passage, and when the stopper 100 is installed in the vacuum double-walled container 200 and a beverage is injected into the vacuum double-walled container 200, it functions as a space for accumulating air on the upper side of the beverage. The first gasket PK1 is a ring-shaped component formed of an elastic material such as rubber or an elastomer, and as shown... Figures 4-6 As shown, it is installed on the lower part of the outer peripheral surface of the upper sidewall 120a of the cylindrical wall portion 120. Furthermore, as described above, the first washer PK1 is held by the claw portion 111d of the outer shoulder member 111 of the shoulder member 110 and the top wall portion 112a of the inner shoulder member 112 of the shoulder member 110. Here, the first washer PK1 functions to block the gap between the outer shoulder member 111 of the shoulder member 110 and the upper sidewall 120a of the cylindrical wall portion 120, and the gap between the inner shoulder member 112 of the shoulder member 110 and the upper sidewall 120a of the cylindrical wall portion 120. The third washer PK3 is a ring-shaped component formed of an elastic material such as rubber or an elastomer, and as... Figures 4-7 As shown, it is installed on the outer peripheral surface of the third washer mounting wall 120i. Here, when the external thread 120h engages with the internal thread 215 of the inner cylinder 210 of the vacuum double-walled container 200, the third washer PK3 is as follows: Figure 4 and Figure 5 As shown, it abuts against the upper end of the stepped portion 213 of the inner cylinder 210. At this time, the third washer PK3 functions to block the gap between the cylindrical wall portion 120 and the inner cylinder 210.

[0092] (3) Pressure adjustment mechanism

[0093] The pressure adjustment mechanism 130 is a component used to adjust the internal pressure of the beverage container 10, and as follows: Figures 4-6 As shown, the internal space SP3 disposed in the cylindrical wall 120 mainly includes a valve body 131, a force-applying component 132, and a fourth washer PK4. These structural components will be described in detail below.

[0094] (3-1) Valve body

[0095] Valve body 131 Figures 4-6 As shown, it is mainly formed by a valve rod 131a and a valve section 131b. The valve rod 131a is as follows... Figures 4-6 As shown, this is a roughly cylindrical rod-like component extending vertically. Here, as... Figures 4-6As shown, the valve rod 131a is inserted inside the force-applying member 132, and the upper end of the valve rod 131a is inserted into the opening OP1 of the upper receiving wall portion 120d of the cylindrical wall portion 120. On the other hand, the lower end of the valve rod 131a is inserted into the opening OP2 of the lower receiving wall portion 120e of the cylindrical wall portion 120. Furthermore, a slight gap is formed between the lower end of the valve rod 131a and the opening OP2. The valve portion 131b is as follows. Figures 4-6 As shown, the valve part 131b is a generally cylindrical portion formed at the lower end of the valve rod 131a, and is subjected to downward force by the force-applying member 132 (i.e., the opening OP2 side). As a result, the valve rod 131a is also subjected to downward force by the force-applying member 132. Furthermore, the valve part 131b is designed such that its diameter is larger than the outer diameter of the fourth washer PK4 when viewed from above. Moreover, in the internal space SP3, a slight gap is formed between the valve part 131b and the lower side wall 120b and the front receiving wall 120f of the cylindrical wall 120.

[0096] (3-2) Force-applying components

[0097] The force-applying component 132 is a coil spring used to apply downward force to the valve body 131. For example... Figures 4-6 As shown, one end of the force-applying member 132 is embedded in the upper receiving wall portion 120d of the cylindrical wall portion 120, and the other end of the force-applying member 132 abuts against the valve portion 131b of the valve body 131.

[0098] (3-3) Fourth washer

[0099] The fourth washer, PK4, is a ring-shaped component made of elastic materials such as rubber or elastomers. Furthermore, the fourth washer PK4... Figures 4-6 As shown, the valve rod 131a of the valve body 131 is installed on the lower surface of the valve portion 131b of the valve body 131, with the lower part of the valve rod 131a passing through the central opening of the fourth washer PK4. Here, the fourth washer PK4 is as follows... Figure 4 As shown, if the valve body 131 is subjected to downward force by the force-applying member 132, it abuts against the upper surface of the lower receiving wall portion 120e of the cylindrical wall portion 120, and together with the valve body 131, blocks the opening OP2 of the lower receiving wall portion 120e of the cylindrical wall portion 120.

[0100] Furthermore, in the stopper 100 of the embodiment of the present invention, the mass of the front portion is greater than the mass of the rear portion. Specifically, this design is achieved by making the mass of the upper sidewall portion 120a of the cylindrical wall portion 120 greater than the mass of the pressure adjustment mechanism 130. With this design, when the stopper 100 is installed in the vacuum double-walled container 200, the cylindrical axis AX of the vacuum double-walled container 200 in the beverage container 10 (refer to...) Figures 3-5The mass on the front side of an imaginary line extending vertically from the center of the inner cylinder bottom wall of the inner cylinder 210 and the outer cylinder bottom wall 222 of the outer cylinder 220 is greater than the mass on the rear side of the cylinder axis AX. That is, when the stopper 100 is installed in the vacuum double-walled container 200, if the beverage container 10 is tilted to a certain degree or tilted sideways, the pressure adjustment mechanism 130 is located higher than the cylindrical wall 120. At this time, if a beverage is injected into the vacuum double-walled container 200, the beverage flows into the internal space SP2, and the air accumulated in the internal space SP2 moves towards the pressure adjustment mechanism 130. Moreover, if Figure 4 and Figure 5 As shown, the pressure adjustment mechanism 130 is located on the opposite side of the upper side wall portion 120a of the cylindrical wall portion 120, away from the cylindrical axis AX of the vacuum double-walled container 200.

[0101] (4) sluice

[0102] The plug 140 is a component used to block the outlet MO of the upper sidewall portion 120a of the cylindrical wall portion 120, and as follows: Figures 1-5 As shown, it mainly includes an upper cover member 141, a lower cover member 142, a plug body 143, and a rotating ring 144. These structural components will be described in detail below. Furthermore, as... Figure 2 and Figure 5 As shown, the plug 140 can be located behind the shoulder member 110 (behind the vacuum double-walled container 200) via the strip 300 without blocking the outlet MO of the upper side wall portion 120a of the cylindrical wall portion 120.

[0103] (4-1) Upper side cover component

[0104] The upper cover member 141 is a member formed of resin or the like, and as... Figures 1-5 As shown, it is mainly formed by a top wall portion 141a, a side wall portion 141b, a claw portion 141c, and a handle portion 141d. The top wall portion 141a is as follows... Figures 1-5 As shown, it is roughly disk-shaped. The sidewall portion 141b is as follows... Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, it is generally cylindrical and extends downward from the outer edge of the top wall portion 141a. The claw portion 141c is as follows... Figure 4 and Figure 5 As shown, the handle 141d extends inward from the middle of the inner peripheral surface of the side wall portion 141b and is inserted into the recess formed in the middle of the outer peripheral surface of the side wall portion 142b of the lower side cover member 142. The handle portion 141d is used by the user when rotating the upper side cover member 141, as... Figures 1-3 As shown, the outer periphery of the side wall portion 141b extends outward from the diameter line passing through the center of the top wall portion 141a.

[0105] (4-2) Lower side cover component

[0106] The lower cover member 142 is a member formed of resin or the like, and as Figure 4 and Figure 5 As shown, it is mainly formed by a top wall portion 142a and a side wall portion 142b. The top wall portion 142a is as follows... Figure 4 and Figure 5 As shown, it is roughly disk-shaped. Furthermore, as... Figure 4 and Figure 5 As shown, a downwardly recessed portion 142o is formed in the center of the top wall portion 142a, and an opening is formed in the center of the recessed portion 142o. Additionally, as... Figure 4 and Figure 5 As shown, the lower side cover member 142 is fastened to the plug body 143 by inserting bolts SC through the insertion holes (described later) in the opening and plug body portion 143. The side wall portion 142b is as follows... Figure 4 and Figure 5 As shown, it is generally cylindrical and extends downward from the outer edge of the top wall portion 142a. As described above, a recess is formed in the middle of the outer peripheral surface of the side wall portion 142b, into which the claw portion 141c of the upper side cover member 141 is inserted.

[0107] (4-3) Plug body part

[0108] The plug body 143 is a component that can be freely inserted and detached from the internal space SP1 of the cylindrical wall 120, and as... Figure 4 and Figure 5 As shown, it is formed by a body portion 143a, an external thread portion 143b, and a fifth washer PK5. The body portion 143a is formed of resin or the like, such as... Figure 2 , Figure 4 and Figure 5 As shown, it is roughly cylindrical. Furthermore, as... Figure 4 and Figure 5 As shown, a through hole is formed in the body portion 143a, extending downward from the center of the upper wall portion of the body portion 143a. As described above, the lower side cover member 142 is fastened to the plug body portion 143 by inserting a bolt SC through the through hole and the opening in the top wall portion 142a of the lower side cover member 142. The external thread portion 143b is formed of resin or the like. Figure 4 and Figure 5 As shown, the middle portion formed on the outer peripheral surface of the body portion 143a can be screwed into the internal thread portion 120g of the cylindrical wall portion 120, except for the lower portion of the internal thread portion 120g of the cylindrical wall portion 120 (that is, when the external thread portion 143b is screwed into the internal thread portion 120g of the cylindrical wall portion 120, it does not reach the lower portion of the internal thread portion 120g of the cylindrical wall portion 120). The fifth washer PK5 is a ring-shaped component formed of an elastic material such as rubber or an elastomer, and as shown... Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, it is installed at the lower end of the body portion 143a. Here, when the external thread portion 143b is screwed into the internal thread portion 120g of the cylindrical wall portion 120, the fifth washer PK5 abuts against the eaves portion 120c of the cylindrical wall portion 120 to block the gap between the body portion 143a and the cylindrical wall portion 120.

[0109] (4-4) Rotating ring

[0110] The rotating ring 144 is roughly circular in shape, such as Figure 4 and Figure 5 As shown, the lower end of the outer peripheral surface of the side wall portion 142b of the lower side cover member 142 is rotatable relative to the side wall portion 142b of the side cover member 142. That is, when the user rotates the upper side cover member 141 to release the blockage of the outlet MO of the upper side wall portion 120a of the cylindrical wall portion 120 (in addition, the lower side cover member 142 and the plug body portion 143 also rotate with the upper side cover member 141), the rotating ring 144 does not rotate together with the upper side cover member 141, the lower side cover member 142, and the plug body portion 143. Moreover, as Figure 4 and Figure 5 As shown, a small circular ring portion 301 of strip 300 is installed on the outer peripheral surface of rotating ring 144 (described later).

[0111] 3. Second washer

[0112] The second washer PK2 is a ring-shaped component formed of an elastic material such as rubber or an elastomer, and as described above, it is installed in the recess formed by the step 223 of the outer cylinder 220 and the top wall portion 224 of the outer cylinder 220. Furthermore, here... Figures 4-6 As shown, when the external thread 120h of the cylindrical wall portion 120 is screwed into the internal thread 215 of the inner cylinder 210, the second washer PK2 abuts against the inner shoulder member 112 of the shoulder member 110. At this time, the second washer PK2 functions to block the gap between the inner shoulder member 112 of the shoulder member 110 and the outer cylinder 220.

[0113] 4. Strip

[0114] The strip 300 is a component that connects the shoulder member 110 and the plug 140 even after the plug 140 is unblocked from the outlet MO of the upper sidewall portion 120a of the cylindrical wall portion 120 (i.e., even after the plug 140 is removed from the cylindrical wall portion 120), and is formed of an elastic material such as rubber or an elastomer. The strip 300 is as follows... Figures 1-5 As shown, it is mainly formed by a small circular ring portion 301, a large circular ring portion 302, and a bridging portion 303. The small circular ring portion 301 is as follows... Figures 1-5 As shown, the small annular portion 301 is roughly circular and mounted on the outer circumferential surface of the rotating ring 144 of the plug 140. Thus, the small annular portion 301 can rotate together with the rotating ring 144 relative to the side wall portion 142b of the lower cover member 142 of the plug 140. The large annular portion 302 is as follows... Figure 1 , Figure 2 , Figures 4-6 As shown, it is roughly annular and is embedded in the recess 112p of the inner shoulder member 112 of the shoulder member 110. Furthermore, at this time... Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the boundary portions of the large annular portion 302 and the bridging portion 303 are located behind the inner shoulder member 112 of the shoulder member 110, and the large annular portion 302 cannot rotate relative to the inner shoulder member 112 of the shoulder member 110. The bridging portion 303 is as follows... Figures 1-5 As shown, it is used to connect the small annular portion 301 and the large annular portion 302. Furthermore, the bridging portion 303 is as follows... Figure 1 and Figure 4 As shown, when the outlet MO of the upper side wall portion 120a of the cylindrical wall portion 120 is blocked by the plug 140, it is deformed into a roughly arc shape, thus also serving as a gripper for carrying.

[0115] Furthermore, assuming that the beverage container 10 does not have the strip 300, if the beverage container 10 is tilted or tilted sideways when the stopper 100 is installed in the vacuum double-walled container 200, depending on the tilting or tilting method, sometimes the pressure adjustment mechanism 130 will temporarily be completely on the lower side (i.e., sometimes the pressure adjustment mechanism 130 is aligned with the surface SF (refer to...)). Figure 7 The distance is temporarily minimized. However, by having a stripe 300 in the beverage container 10, thus... Figure 7 As shown, this reduces the likelihood of the pressure adjustment mechanism 130 being completely on the lower side (i.e., the distance between the pressure adjustment mechanism 130 and the surface SF is minimized).

[0116] <How to use and how to move the plug>

[0117] First, the desired beverage is injected into the vacuum double-walled container 200. Next, the external thread 120h of the cylindrical wall portion 120 of the stopper 100 is screwed into the internal thread 215 of the vacuum double-walled container 200, and then the external thread 143b of the stopper 140 of the stopper 100 is screwed into the internal thread 120g of the cylindrical wall portion 120 of the stopper 100, thereby completing the beverage container 10 (see reference). Figure 1 and Figure 4Alternatively, after screwing the external thread 143b of the stopper 140 of the stopper body 100 into the internal thread 120g of the cylindrical wall portion 120 of the stopper body 100, screwing the external thread 120h of the cylindrical wall portion 120 of the stopper body 100 into the internal thread 215 of the vacuum double-walled container 200, thereby completing the beverage container 10. At this time, as... Figure 4 As shown, the third gasket PK3 abuts against the upper end of the stepped portion 213 of the inner cylinder 210 of the vacuum double-walled container 200, and the fifth gasket PK5 abuts against the eaves 120c of the cylindrical wall portion 120 of the plug body 100. This maintains the vacuum double-walled container 200 and the plug body 100 in a watertight manner.

[0118] Moreover, such as Figure 4 As shown, air accumulates in the internal space SP2 of the cylindrical wall portion 120. Furthermore, when the user drinks from the beverage container 10, the internal thread 120g of the cylindrical wall portion 120 of the stopper 100 and the external thread 143b of the stopper 140 of the stopper 100 are released from their threaded state. Next, the user holds the vacuum double-walled container 200 and lifts the beverage container 10, bringing the cylindrical wall portion 120 of the stopper 100 to their mouth to drink from the beverage container 10. At this time, the beverage in the beverage container 10 flows into the user's mouth through the internal spaces SP2 and SP1 of the cylindrical wall portion 120. After the user finishes drinking from the beverage container 10, the external thread 143b of the stopper 140 of the stopper 100 is screwed onto the internal thread 120g of the cylindrical wall portion 120 of the stopper 100.

[0119] Next, the operation mode of the pressure adjustment mechanism 130 of the stopper 100 will be described in the following situation: the beverage in the beverage container 10 is a foamed beverage (such as carbonated beverage or alcohol), and the external thread 120h of the cylindrical wall portion 120 of the stopper 100 is screwed into the internal thread 215 of the vacuum double-walled container 200, and the external thread 143b of the stopper 140 of the stopper 100 is screwed into the internal thread 120g of the cylindrical wall portion 120 of the stopper 100 (refer to the following state). Figure 1 and Figure 4 Under these conditions, the internal pressure inside the beverage container 10 increases. Firstly, if the internal pressure inside the beverage container 10 does not increase, such as... Figure 4 As shown, in the pressure adjustment mechanism 130 of the stopper 100, the force-applying member 132 applies downward force to the valve body 131 and the fourth washer PK4, and the valve body 131 and the fourth washer PK4 block the opening OP2 of the cylindrical wall portion 120 of the stopper 100. Furthermore, if substances dissolved in the beverage water inside the beverage container 10 (such as carbon dioxide) vaporize into gas, and the internal pressure inside the beverage container 10 increases, then... Figure 6As shown, in the pressure adjustment mechanism 130 of the plug 100, the valve body 131 and the fourth washer PK4 move upward against the force applied by the force-applying member 132, releasing the blockage of the opening OP2 of the cylindrical wall portion 120 of the plug 100. Then, gas... Figure 6 As indicated by the thick arrow, gas is discharged through the opening OP2 of the cylindrical wall portion 120 of the stopper 100, the internal space SP3, and the opening OP3 of the cylindrical wall portion 120 of the stopper 100. Next, if the internal pressure inside the beverage container 10 gradually returns to normal, the valve body 131 and the fourth gasket PK4 are forced downwards by the force-applying member 132, blocking the opening OP2 of the cylindrical wall portion 120 of the stopper 100 again. Furthermore, when gas is discharged through the opening OP2 of the cylindrical wall portion 120 of the stopper 100, the internal space SP3, and the opening OP3 of the cylindrical wall portion 120 of the stopper 100, bubbles may sometimes also pass through the opening OP2 of the cylindrical wall portion 120 of the stopper 100, but these bubbles are captured by the internal space SP3. Assuming that even if bubbles are discharged through the opening OP2 of the cylindrical wall portion 120 of the stopper 100, the internal space SP3, and the opening OP3 of the cylindrical wall portion 120 of the stopper 100, the first gasket PK1 and the second gasket PK2 will retain the bubbles in the beverage container 10.

[0120] <Features of the plug body according to embodiments of the present invention> (1)

[0122] In this embodiment of the invention, the stopper 100 is designed such that the mass of the front portion is greater than the mass of the rear portion, and a pressure adjustment mechanism 130 is provided on the rear portion of the stopper 100. Therefore, when the stopper 100 is tilted to a certain degree or completely tilted when installed in the vacuum double-walled container 200, the possibility of beverage leakage from the vacuum double-walled container 200 can be reduced during pressure release, and the possibility of the pressure adjustment mechanism 130 malfunctioning can be reduced. (2)

[0124] In the stopper 100 of this embodiment, the shoulder member 110 and the stopper 140 are connected by a strip 300. The boundary portions of the large annular portion 302 and the bridging portion 303 of the strip 300 are located behind the inner shoulder member 112 of the shoulder member 110, and the large annular portion 302 of the strip 300 cannot rotate relative to the inner shoulder member 112 of the shoulder member 110. Therefore, when the stopper 100 is tilted to a certain degree or completely tilted when installed in the vacuum double-walled container 200, the strip 300 can reduce the possibility that the pressure adjustment mechanism 130 will completely fall to the lower side. Therefore, the possibility that the pressure adjustment mechanism 130 is immersed in the beverage in the vacuum double-walled container 200 can be reduced. (3)

[0126] In the plug 100 of the embodiment of the present invention, an internal space SP3 extending in the vertical direction is formed by the lower side wall portion 120b, the upper receiving wall portion 120d, the lower receiving wall portion 120e, and the front receiving wall portion 120f of the cylindrical wall portion 120. Therefore, in the plug 100, when not only gas but also bubbles enter the opening OP2 of the cylindrical wall portion 120, part or all of the bubbles can be captured by the internal space SP3, which can reduce the amount of bubbles leaking to the outside of the plug 100 or prevent bubbles from leaking to the outside of the plug 100. (4)

[0128] In the plug 100 of the embodiment of the present invention, the shoulder member 110 covers the pressure adjustment mechanism 130. Therefore, the creativity of the plug 100 can be improved. (5)

[0130] In the plug 100 of the embodiment of the present invention, the valve body 131 of the pressure adjusting mechanism 130 is subjected to downward force by the force-applying member 132 of the pressure adjusting mechanism 130. Therefore, for the plug 100, according to the relationship of pressure = force / area, the working force of the force-applying member 132 of the pressure adjusting mechanism 130 can be controlled by simply changing the force load of the force-applying member 132 of the pressure adjusting mechanism 130. (6)

[0132] In the stopper 100 of the embodiment of the present invention, the first washer PK1 blocks the gap between the outer shoulder member 111 of the shoulder member 110 and the upper side wall portion 120a of the cylindrical wall portion 120, and the gap between the inner shoulder member 112 of the shoulder member 110 and the upper side wall portion 120a of the cylindrical wall portion 120. Furthermore, in the beverage container 10 of the embodiment of the present invention, the second washer PK2 blocks the gap between the inner shoulder member 112 of the shoulder member 110 and the outer cylinder 220. Therefore, not only can the possibility of foam leakage from the openings 111o and 112o of the shoulder member 110 be reduced using the first washer PK1, but the possibility of foam leakage from the inner shoulder member 112 of the shoulder member 110 and the outer cylinder 220 can also be reduced using the second washer PK2.

[0133] <Variation Example>

[0134] (A)

[0135] The shape or material of each part of the plug 100 in the described embodiment is not particularly limited. Each part can be made of any shape and any material without departing from the spirit of the present invention. For example, in the plug 100 of the described embodiment, the shoulder member 110 or the cylindrical wall portion 120 is formed of resin or the like, but it can also be formed of metal or the like.

[0136] (B)

[0137] In the plug body 100 of the embodiment, an internal space SP2 is formed by the lower side wall portion 120b, the lower receiving wall portion 120e, the front receiving wall portion 120f and the third washer mounting wall portion 120i of the cylindrical wall portion 120, and an internal space SP3 is formed by the lower side wall portion 120b, the upper receiving wall portion 120d, the lower receiving wall portion 120e and the front receiving wall portion 120f of the cylindrical wall portion 120. It is also equipped with a shoulder member 110 or a strip 300, a first washer PK1, a second washer PK2, etc., but some or all of the parts or members may be omitted.

[0138] (C)

[0139] In the plug body 100 of the embodiment, the pressure adjustment mechanism 130 is spring-type (using the force-applying member 132, which is a coil spring, to apply downward force to the valve body 131), but the pressure adjustment mechanism 130 is not limited to spring-type, and other types of pressure adjustment mechanisms may also be used.

[0140] (D)

[0141] In the plug body 100 of the described embodiment, by making the mass of the upper sidewall portion 120a of the cylindrical wall portion 120 greater than the mass of the pressure adjustment mechanism 130, the mass of the front side of the cylinder axis AX of the vacuum double-layer container 200 is greater than the mass of the rear side of the cylinder axis AX. However, it is also possible to make the mass of the front side of the cylinder axis AX of the vacuum double-layer container 200 greater than the mass of the rear side by making the mass of other parts or components, such as the lower sidewall portion 120b of the cylindrical wall portion 120 or the front portion of the shoulder member 110 greater than the mass of the rear portion.

[0142] (E)

[0143] In the plug body 100 of the described embodiment, the plug 140 is an externally threaded plug with an externally threaded portion 143b formed on the plug body portion 143. However, the plug 140 is not limited to the externally threaded type, and other types of plugs such as internally threaded plugs may also be used. When using an internally threaded plug, it is preferable that the externally threaded portion is formed on the outer peripheral surface of the upper sidewall portion 120a of the cylindrical wall portion 120.

[0144] (F)

[0145] In the plug 100 of the embodiment, the internal space SP3 extends in the vertical direction, but the formation direction of the internal space SP3 only needs to be a direction that includes the vertical direction component.

[0146] (G)

[0147] In the plug 100 of the described embodiment, when viewed from above, the pressure adjustment mechanism 130 faces the portion of the upper sidewall portion 120a of the cylindrical wall portion 120, excluding the rear portion, across the cylindrical axis AX of the vacuum double-walled container 200 (i.e., in cross-sectional view, the pressure adjustment mechanism 130 is located on the opposite side of the portion of the upper sidewall portion 120a of the cylindrical wall portion 120, excluding the rear portion, across the cylindrical axis AX of the vacuum double-walled container 200). However, this relationship is not necessarily required, and the arrangement positions of the upper sidewall portion 120a of the cylindrical wall portion 120 and the pressure adjustment mechanism 130 can be determined without departing from the spirit of the invention. For example, when viewed from above, the pressure adjustment mechanism 130 may face the entire upper sidewall portion 120a of the cylindrical wall portion 120, across the cylindrical axis AX of the vacuum double-walled container 200.

[0148] (H)

[0149] In the beverage container 10 of the described embodiment, a beverage (including a foaming beverage) is injected into the vacuum double-walled container 200, but there are no particular limitations on the contents added to the vacuum double-walled container 200.

[0150] (I)

[0151] In this embodiment, a vacuum double-walled container 200 is used, but the container is not particularly limited; for example, it can also be a conventional single-walled container. Furthermore, in this embodiment, stainless steel is used as the material for the container, but the material can also be an alloy other than stainless steel, resin, etc.

[0152] Furthermore, the aforementioned variations can be applied individually or in combination.

Claims

1. A plug body, comprising: Drinking mouth; as well as The pressure relief valve is located in a position different from that of the drinking spout. The mass of the drinking spout side is greater than the mass of the pressure relief valve side. Wherein, the mass of the drinking spout is greater than the mass of the pressure relief valve, and When the stopper is installed in a bottomed cylindrical container, the pressure relief valve, when viewed from above, faces the drinking spout across the extension line of the container's cylindrical axis.

2. The plug body according to claim 1, further comprising: A space-forming section is formed on the lower side of the drinking spout. The inlet of the pressure relief valve is formed in the space forming portion.

3. The plug according to claim 1 or 2, further comprising: The stopper is detachably mounted on the drinking spout. The plug is installed via a strip on the opposite side of the drinking port of the pressure-releasing valve.

4. The plug according to claim 1 or 2, wherein, A passage is formed between the inlet and outlet of the pressure relief valve, the passage extending in a direction having an up-down component.

5. The plug according to claim 1 or 2, further comprising: The shoulder member has an opening that allows the drinking spout to protrude upwards and covers the top of the pressure relief valve; as well as The first sealing component separates the outlet of the pressure relief valve from the opening.

6. The plug according to claim 1 or 2, wherein, The pressure relief valve has a valve body and a force-applying member that applies force to the valve body toward the inlet side.

7. A beverage container, comprising: The plug body as described in any one of claims 1 to 6; as well as A bottomed cylindrical container for mounting the plug.

8. The beverage container according to claim 7, wherein, The plug is the plug as described in claim 5. The beverage container further includes a second sealing member that seals the plug mounting portion of the container with the shoulder member.

Images