JP2003038360A - Liquid container and cap used for it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid container capable of keeping carbonated beverage including carbon dioxide such as carbonated water, soda, lemon soda or effervescent beverage such as beer. SOLUTION: At a surface facing the inside of the container main body 1 of a cap 20, a pressure regulating port 25 for lowering internal pressure in the main body 1 when the internal pressure is raised is formed. In the inside of the cap 20, a pressure releasing passage 26 communicating with the pressure regulating port 25 and an exhaust port 27 is formed. A pressure regulating valve 28 is provided in the pressure releasing passage 26. When the internal pressure in the container 1 is equal to normal pressure, this pressure regulating valve 28 closes the pressure regulating port 25 and when it is higher, the pressure regulating valve 28 opens the pressure regulating port 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid container capable of containing a carbonated drink containing carbonated water such as carbonated water, cider, or ramune, or a sparkling drink such as beer, and a stopper used for the liquid container.

[0002]

2. Description of the Related Art Conventionally, it has been prohibited to put a sparkling drink such as a carbonated drink or beer in a liquid container having a heat insulating structure for the following reasons.

[0003]

That is, when an effervescent beverage is placed in the liquid container, the effervescent beverage increases the internal pressure of the liquid container. Due to this increase in internal pressure, (a) when the plug body that closes the opening of the container body is a so-called push plug, the valve body (core) of the push plug is pushed up and the push plug can be pushed. There was a problem that it was not possible to open the liquid passage of the push stopper. (B) Further, there is a problem that the holding force of the stopper is lost due to the increase of the internal pressure, and the stopper is detached from the container body. (C) For example, even if the retaining force could be maintained without the stopper coming off, there was a problem that the stopper could not be turned due to the internal pressure. (D) Further, every time the effervescent beverage contained in the liquid container is used, the effervescent beverage loses its original taste, loses its original taste, and becomes inconvenient.

An object of the present invention is to provide a liquid container which solves the above-mentioned conventional problems and a stopper used for the liquid container.

[0005]

To achieve the above object, a liquid container of the present invention comprises at least a bottomed cylindrical container body capable of accommodating an effervescent beverage and a stopper for closing an opening of the container body. In a liquid container provided with the stopper body, a surface of the stopper body facing the inside of the container body is formed with a pressure adjusting port for lowering the internal pressure when the inside pressure in the container body rises. A pressure relief passage communicating the pressure regulation port and the exhaust port is formed inside, and a pressure regulation valve is provided in the pressure relief passage, and this pressure regulation valve is the above-mentioned when the internal pressure in the container body is normal pressure. It is characterized in that the pressure adjusting port is closed and opened at high pressure.

Here, "when the internal pressure in the container body is atmospheric pressure" means that the content liquid contained in the container body is hot water, water, tea,
In the case of beverages that are not sparkling beverages such as carbonated beverages and beer, such as juice, milk, coffee, etc., this means that the internal pressure in the container body is at normal atmospheric pressure. On the other hand, "when the internal pressure in the container body is high" means that the content liquid is carbonated water, beverage containing carbon dioxide gas such as cider and ramune, or beverage such as beer, in the case of a sparkling beverage, The internal pressure in the container body means a time when the internal pressure rises due to the foaming action of the sparkling beverage and is higher than usual. At the time of this high pressure, the conventional liquid container has not been used because it has drawbacks such as the plug body coming off and the plug body not being able to rotate as described above. According to the present invention having the above-described configuration, the drawbacks such as the stopper being detached or being unable to rotate even when the pressure inside the container body is high is solved.

Although the pressure adjusting valve provided in the pressure relief passage is not particularly limited in the present invention, for example, a valve composed of a valve body and a valve rod is always biased to a closed state. A general valve provided with a spring may be provided (see claim 2), or a spherical valve may be provided on the pressure adjusting port so that the pressure adjusting port is always closed by the weight of the ball valve. The above-mentioned spring may not be attached, and the design can be appropriately changed.

Further, according to the present invention, when the internal pressure in the container body rises, a pressure adjusting port formed on a surface facing the inside of the container body for lowering the internal pressure, a pressure adjusting port and an exhaust port are provided. A pressure relief passage formed inside the plug body, a pressure adjustment valve provided in the pressure relief passage, and a pressure relief valve that is normally pushed down to close the pressure adjustment port. There is also provided a stopper for a liquid container, which is equipped with a spring.

Furthermore, the present invention provides a liquid container comprising at least a bottomed cylindrical container body capable of accommodating a sparkling beverage and a stopper for closing an opening of the container body, wherein the container body is an inner container. Form a heat insulating space with the outer container,
A female screw is formed on the upper inner peripheral side wall of the opening of the inner container and a male screw is formed on the upper outer peripheral side wall of the opening of the outer container, while the side wall of the plug body is formed of an annular inner peripheral side wall and an outer peripheral side wall. Provided is a liquid container characterized in that the inner peripheral side wall is formed with a double thread, and an outer peripheral side wall is formed with a male screw that is screwed into the female screw of the outer container, and an outer peripheral side wall is formed with a female screw that is screwed into the male screw of the outer container. To do. According to this, since the container body and the stopper can be screwed together at two places at the same time, the screwing (fitting) between the two becomes strong, and the stopper is secured even when the internal pressure of the container body rises or falls. The body does not come off the container body.

In this case, a lid for covering the plug may be detachably provided above the outer peripheral side wall of the plug.

The present invention provides a liquid container comprising at least a bottomed cylindrical container main body capable of storing a sparkling beverage and a stopper for closing an opening of the container main body, wherein the stopper is provided in the container main body. Provided is a liquid container comprising a pressurizing pump for sending pressurized air. Thereby, when the effervescent beverage is placed in the container body, or when the effervescent beverage is drunk and the capacity is gradually reduced, by sending pressurized air into the container body by the pressure pump, The foaming action of the sparkling beverage can be prevented so that the sparkling beverage can be prevented from being let out and the original taste can be obtained.

In this case, the present invention is a stopper for a liquid container, which comprises a cylindrical stopper body and a stopper lid, and the lower portion of the stopper body of this stopper is fitted into the container body. And a partition plate provided with a suction valve in a position facing the container body in the stopper body, and an operation section that can be operated from the outside between the partition plate and the stopper lid of the stopper body. There is provided a stopper for a liquid container, characterized in that a pressure pump having the above is provided.

The present invention provides a liquid container comprising at least a bottomed cylindrical container body capable of accommodating a sparkling beverage, and a stopper body having a stopper lid for closing an opening of the container body, wherein the stopper body comprises: An air inlet for introducing pressurized air into the container body and a check valve for opening and closing the air inlet are provided, and the stopper lid of the stopper body is pressed to open the check valve. The liquid container is characterized by being configured as described above. As a result, when the effervescent beverage is put in the container body, or when the effervescent beverage is drunk and the volume gradually decreases, the cap lid of the stopper body is pressed to add the effervescent beverage to the container body. By sending the compressed air, the foaming action of the sparkling beverage can be prevented, so that the sparkling beverage can be prevented from being extinguished and the beverage can be drunk in the original taste state.

Further, the present invention provides a liquid container comprising at least a bottomed cylindrical container body capable of accommodating a sparkling beverage, and a stopper body having a stopper lid for closing an opening of the container body. A pressurizing pump for sending pressurized air into the container body and a partition plate with a suction valve for partitioning a pump chamber of the pressurizing pump and a space facing the storage chamber of the container body are provided in the stopper body, and the partition The liquid container is characterized in that an exhaust port is formed in the stopper body below the plate, and the exhaust port is normally closed by an exhaust valve. According to this, when the internal pressure of the container body containing the sparkling beverage rises too much due to the user's over-operation or vibration of the pressure pump, the high-pressure gas in the container body is discharged from the exhaust adjustment port. Then, the internal pressure in the container body can be lowered to prevent the stopper body from coming off the container body and preventing the stopper body from rotating. Further, when the effervescent beverage is put in the container body, or when the effervescent beverage is drunk and the capacity is gradually decreased, the pressurized pump is operated to release pressurized air into the container body. By sending, the foaming action of the effervescent beverage can be prevented, the effervescent beverage can be prevented from being let out, and the beverage can be in the original taste state.

In this case, the present invention is a stopper for a liquid container, which comprises a cylindrical stopper body and a stopper lid, and the lower portion of the stopper body of the stopper body is fitted into the container body. And a partition plate with a suction valve that divides the pump chamber in the stopper body and the space facing the accommodation chamber of the container body is formed sideways, and between the divider plate and the stopper lid of the stopper body. There is provided a stopper for a liquid container, characterized in that a pressurizing pump having an operating portion that can be operated from the outside is provided, and an exhaust port is formed in a stopper main body that forms a space facing a storage chamber of the container main body.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION First Embodiment A first embodiment of the present invention will be described below with reference to FIG.

This liquid container is composed of an inner container 1A and an outer container 1B.
A bottomed cylindrical container body 1 in which a heat insulating space 2 is formed between
And a plug body 20 for closing the opening 3 of the inner container 1A of the container body 1.
And a lid 50 for covering the plug 20 and the mouth of the container body 1.

The container body 1 is a double container consisting of a bottomed cylindrical inner container 1A made of metal and an outer container 1B in which a bottom portion 4 also made of metal is joined to a bottom body 5 by welding or the like. And a space formed between the inner and outer containers 1A and 1B is evacuated to form a vacuum heat insulating space 2. The opening 3 of the container body 1 has a plug body 20 fitted therein. A lid 50 also serving as a cup is screwed onto the upper end of the container 1B.

The upper end portion of the inner container 1A and the upper end portion of the outer container 1B are overlapped with each other, and at the overlapped portion, a screw 6 for fitting (screw-fitting) the plug body 20 is provided on the inner container 1A side. Container 1
A screw 7 for fitting (screw-engaging) the lid body 50 is formed on the B side. Therefore, the stopper body screwing screw 6 is attached to the stopper body 20.
The screw 21 formed on the outer wall of the lid is screwed to close the lid, and the screw 7 for fitting the lid is attached to the screw 5 formed on the inner wall of the lid 50.
1 is screwed to cover.

In FIG. 1, 8 is packing, 9 is a sealing material for sealing the exhaust port 10, and 11 is for burning at the time of vacuum discharge in the gap between the inner and outer containers 1A and 1B to improve the degree of vacuum. It is a getter material. Reference numeral 12 is a bottom plate fixed to the lower portion of the outer container 1B and covers the bottom body 5. This liquid container is
By removing the lid 50 and then removing the stopper 20 from the container body 1 and tilting the container body,
It is designed to be poured out from the opening 3 of the. Lid 50
As shown in FIG. 1, it is preferable that it also serves as a cup, but it is needless to say that it may not be a cup as well.

In the liquid container having the above-described structure, the stopper body 20 includes a stopper body 22, a stopper lid 23 for covering the stopper body 22, and an inner bottom portion of the stopper body 22 up to the back surface of the stopper lid 23. It is composed of a tubular body 24 provided. A pressure adjusting port 25 is formed in the region of the cylindrical body 24 on the surface of the stopper body 22 of the stopper body 20 that faces the inside of the container body 1, that is, on the bottom plate portion 22a of the stopper body 22.

The inside of the cylindrical body 24 forms a pressure relief passage 26 for releasing the high pressure gas, and the pressure relief passage 26 communicates from the pressure adjusting port 25 to the exhaust port 27. In the pressure relief passage 26, a pressure adjusting valve 28 including a valve body 28A and a valve rod 28B, and a spring 2 in which the valve rod 28B is fitted between the valve body 28A and the back surface of the stopper lid 23.
It has 9 interiors. The urging force of the spring 29 normally pushes down the valve body 28A to seal the pressure adjusting port 25.

In the state where the pressure adjusting port 25 is sealed by the pressure adjusting valve 28 as shown in FIG. 1, when the internal pressure rises due to the foaming action of the sparkling beverage contained in the container body 1, the action of the internal pressure As a result, the valve body 28A of the pressure adjusting valve 28 is moved upward against the biasing force of the spring 29, and the pressure adjusting port 25 is opened. Therefore, the high-pressure gas in the container body 1 is discharged from the pressure adjusting port 25 through the pressure relief passage 26 to the outside of the body through the exhaust port 27, so that the internal pressure of the container body 1 is lowered. As a result, as described above, in the case of the push stopper, not only the liquid passage can be opened and the liquid can be injected without any trouble, but the stopper does not come off from the container body 1 and the stopper can be rotated without any trouble. Have.

In short, according to the liquid container of the first embodiment, the pressure adjusting valve 28 closes the pressure adjusting port 25 when the internal pressure in the container body 1 is normal pressure, and when the internal pressure is high, the pressure adjusting port 25 is the same. It is an exhaust type, so to speak. The adjustment of the set pressure for opening the pressure adjusting valve 28 may be adjusted by the elasticity of the spring 29. In FIG. 1, 30 is a packing covering the exhaust port 27, 3
Reference numeral 1 denotes a packing fitted to the upper end of the tubular body 24, and these packings 30 and 31 prevent liquid from entering the inside of the plug body 20 even if the plug body 20 is washed completely.

In the present invention, the stopper 20 shown in FIG. 1 can be used as a stopper for a liquid container having a structure different from that of the container body 1 shown in FIG.

[0026]

Second Embodiment A second embodiment of the present invention will be described below with reference to FIG. The liquid container of this embodiment relates to a so-called plug removal prevention type technology in which the plug does not come off due to an increase in internal pressure due to the effervescent beverage in the container body.

That is, the liquid container in this case is a bottomed cylindrical container body 1 capable of containing a sparkling beverage, and the container body 1.
And at least a plug 20 for closing the opening 3 of the inner container 1A. The container body 1 forms a heat insulating space 2 between the inner container 1A and the outer container 1B. A female screw 6 is formed on the peripheral side wall, and a male screw 7 is formed on the upper peripheral side wall of the opening of the outer container 1B. On the other hand, the side wall of the plug body 20 has an annular inner peripheral side wall 32 and an outer peripheral side wall 33.
And the inner container 1A on the inner side wall 32.
A male screw 32a that is screwed to the female screw 6 is formed, and a female screw 33a that is screwed to the male screw 7 of the outer container 1B is formed on the outer peripheral side wall 33.

The plug body 20 in the second embodiment is composed of a plug body 22 and a cap-shaped plug lid 23 for covering the plug body 22. An outward flange portion 32b is formed on the upper end of the stopper body 22, and the stopper lid 23 is covered on the upper surface of the outward flange portion 32b to ultrasonically weld the overlapping portion with the outward flange portion 32b. Are combined with each other. The outer peripheral side wall of the stopper main body 22 is the inner peripheral side wall 32, the hanging cylinder part of the stopper lid 23 is the outer peripheral side wall 33, and the screwing part at the upper part of the container main body 1 is between the inner peripheral side wall 32 and the outer peripheral side wall 33. Form a space in which can be fitted.

In this case, the plug body 20 is structured such that it is screwed into the internal and external screws 6 and 7 of the container body 1 at two locations by the internal and external screws 33a and 32a of the plug body 20. Therefore, even if the shape of the threads of the screws 6 and 7 of the container body 1 cannot provide sufficient holding strength due to processing problems, the screws of the plug body are formed both inside and outside, and By performing the fitting (screwing) at the same time, the holding force (strength) of the stopper can be improved, and as described above, there is no risk that the stopper will come off due to an increase in internal pressure due to the sparkling beverage. Although the lower part of the container body is omitted in FIG. 2, it may be the same as that in FIG. 1 or may have another structure.

[0030]

Third Embodiment of the Invention A third embodiment of the present invention will be described below with reference to FIG. The liquid container of this embodiment relates to the same plug-out prevention type technology as that of the second embodiment in principle, and has the same effect. Therefore, in FIG. 3, the portions common to FIG. 2 are denoted by the same reference numerals for convenience, and the details may be referred to FIG.

The plug body 20 in this case also comprises a plug body 22 and a cap-shaped plug lid 23. The male screw 32a formed on the inner peripheral side wall 32 of the plug body 22 is connected to the inner container 1A of the container body 1. When it is formed on the upper part, it is screwed into the female screw 6, and at the same time, the rib 33b formed on the inner lower part of the outer peripheral side wall 33 of the stopper lid 23 is passed over the bead portion 7a formed on the upper part of the outer container 1B of the container body 1 and engaged. By combining, the plug body 20 is fixed to the container body 1.

The outward flange portion 32b of the stopper body 22 and the stopper lid 23
It is connected to the top plate of by ultrasonic welding.

[0033]

Fourth Embodiment of the Invention A fourth example of the embodiment of the present invention will be described below with reference to FIG. The liquid container of this embodiment is of a plug pull-out prevention type configuration as in the second and third embodiments.

The liquid container in this case is shown in FIG.
On the other hand, the plug body 20 is screwed into the opening 3 of the container body 1 and the structure of the plug body 20 and the pressing member 33A which is the outer peripheral side wall is a separate member. 2 is different from that of FIG.
Similar to the above, it is of a plug pull-out prevention type. Details are shown in Figure 2.
See FIG. 1 and FIG.

The stopper 20 is provided with a small-capacity bottomed cylindrical stopper cylinder 34 inside the cylindrical inner peripheral side wall 32.
2 and the outer peripheral partition wall of the stopper cylinder 34 to form a liquid injection path 35,
Further, an annular flange 36 is formed on the outside of the upper part of the inner peripheral side wall 32 in a stepwise manner, and a pressing member 33A having an annular flange is formed on the upper part of the outer container 1B to press the annular flange 36 from the upper part. The stopper 20 is firmly fixed to the container body 1 by engaging with the male screw 7 described above.

To close the opening 3 of the container body 1 with the plug body 20, the inner peripheral side wall 32 of the plug body 20 is fitted into the opening 3 of the container body 1 and the plug body 20 is rotated in the closing direction. Good. The male screw 32a of the inner peripheral side wall 32 is screwed with the female screw 6 of the inner container 1A of the container body 1. Further, the pressing member 33A
By engaging the female screw 33a from the upper part with the male screw 7 of the outer container 1B of the container body 1 so as to be screwed, the plug body 20 is firmly attached to the container body 1 at two places inside and outside as shown in FIG. Fixed to.

When the content liquid in the container body is poured out in the above-mentioned closed state, the inner solution can be poured out from the liquid injection path 35 and drunk by loosening the stopper cylinder 34 and inclining the container body. . In FIG. 4, 37 is a cylindrical body having a screw 37a on the outer peripheral wall for screwing with the stopper cylinder 34, and a space for securing the cylindrical body and the liquid injection path 35. The handle 38 is formed of an annular member integrally formed with the side wall by ultrasonic welding or the like, and 38 is a foldable handle. Further plug 2
The plug cylinder 34 of 0 may have a pressure adjusting structure as in the above-mentioned invention.

FIG. 5 shows the liquid container of FIG. 4 in which a lid 39 for covering the plug 20 is detachably provided above the pressing member 33A. That is, the upper end portion of the pressing member 33A in FIG. 4 is extended upward to form an engaged portion 33c on the extended portion, and an engaging portion 39a is formed on the inner peripheral wall of the lower end of the lid 39. Lid 39 when lid
The engaging portion 39a of is engaged with the engaged portion 33c of the outer peripheral side wall 33. The engaged portion 33c and the engaging portion 39a
Instead of the engagement method by, the design can be changed appropriately such as a screwing method or another fitting method.

By providing the above-mentioned lid 39, the plug 2
Since the injection passage, the outlet, and the like of No. 0 are closed, a clean liquid container can be provided that can be protected from dust and the like.

6 and 7 show a fifth embodiment of the present invention.
6 shows an example and a sixth example, both of which are a liquid container including at least a bottomed cylindrical container body 1 capable of storing a sparkling beverage and a plug body 20 for closing an opening 3 of the container body 1. The plug 20 is a liquid container characterized by comprising a pressurizing pump 60 for sending pressurized air into the container main body 1. The plug 20 has a cylindrical plug main body 22 and a cap lid 23. A plug body for a liquid container, which comprises a fitting portion 45 to be fitted with the container body at a lower portion of the plug body 22 of the plug body, and the container body 1 in the plug body 22. A partition plate 40 provided with a suction valve 42 is laterally provided at a position facing the pressurization pump 60 having an operation portion 48 that can be operated from the outside between the partition plate 40 and the plug lid 23 of the plug body 22. It is common in that it becomes. Both will be described below.

[0041]

Fifth Embodiment of the Invention In a liquid container stopper 20 of a fifth embodiment of FIG. 6, a cylindrical stopper main body 22 is divided into upper and lower chambers by a partition plate 40. Suction port 41
The suction port 41 can be opened and closed by a suction valve 42. Further, a skirt portion 44 is vertically provided at the lower portion of the stopper body 22, and a male screw 45 which is a fitting portion can be screwed into the female screw 6 of the inner container 1A of the container body 1. The upper opening of the stopper body 22 is covered with a stopper lid 23.

A pressurizing pump 60 is built in an empty space formed by the partition plate 40 and the stopper lid 23. The pressurizing pump 60 includes a valve 46, a valve rod 47, and an operating portion 48 formed at an upper end portion of the valve rod 47, and the valve 46 has a suction port 41.
A suction valve 49 for opening and closing a is provided. Although not shown in the figure, a spring that normally biases the valve 46 upward may be provided on the valve 46.

The operation of the embodiment of FIG. 6 will be described. The figure shows a state in which pressurized air is sent into the container body 1 by the pressurizing pump 60. When the operating portion 48 is gripped and lifted upward in this state, the valve 46 is separated from the partition plate 40, and the deposition of the pump chamber 61 formed by the valve 46 and the partition plate 40 increases. Therefore, when the operating portion 48 is gripped and the valve 46 is pushed down to the lowest position as shown in FIG. 6, the pressurized air in the pump chamber 61 is sucked into the suction valve 42 via the suction port 41.
And the pressurized air is sent into the container body 1 to reduce the foaming action of the sparkling beverage. In FIG. 6, reference numeral 62 is a sealing material, and 65 is a threaded portion.

[0044]

Sixth Embodiment of the Invention A plug body 20 according to a sixth embodiment of FIG.
Divides the inside of the cylindrical plug body 22 into upper and lower chambers by a partition plate 40, and the partition plate 40 is provided with a suction valve 42 for opening and closing a suction port 41. 23
The point that the pressurizing pump 60 is built in the vacant chamber formed by and the point that the pressurizing pump 60 is composed of the valve 46 and the valve rod 47 is generally the same as that of the fifth embodiment. ing.

The stopper 20 of FIG. 7 is a different example of the method of screwing the stopper 20 of FIG. 6 to the container body and the method of sucking air into the pump chamber. That is, in the lower part of the plug body 22 of the plug body 20 of FIG. 7, only the female screw 43 as a fitting portion formed on the skirt portion 44 is screwed with the male screw 7 of the container body 1.
As shown in FIG. 6, a cylindrical portion with a male screw 45, which is a fitting portion vertically provided on the lower portion of the plug body 22, is not formed. The valve 46 of the pressurizing pump 60 includes a suction port 41a and a suction valve 4 as shown in FIG.
9 is not provided, and is an example of a method of sucking from the side wall of the pump valve 46. Further, the portion corresponding to the operation portion 48 of FIG. 6 is different from that of FIG. 6 in that it has a dish-like operation shape in FIG. 7.

The operation of the embodiment shown in FIG. 7 is the same as that shown in FIG. In addition, 6 in FIG.
3 and 64 are sealing materials.

[0047]

[Seventh Embodiment of the Invention] FIG. 8 shows a seventh example of the embodiment of the present invention. In this case as well, it is common in that it is a pressurizing type as in FIGS. 6 and 7, but its structure is the same. And different pressure methods.

That is, the liquid container in this case is a bottomed cylindrical container body 1 capable of containing a sparkling beverage, and the container body 1
In a liquid container comprising at least a stopper body 20 with a stopper lid 23 for closing the opening 3 of
An air inlet 41 for introducing pressurized air into the container body 1,
A check valve 72 for opening and closing the air suction port 41 is provided, and the check valve 72 is opened by pressing the stopper lid 23 of the stopper body 20.

In the plug body 20 of the seventh embodiment, as shown in FIG. 8, the outer diameter of the plug body 22 is made as small as possible to easily apply the rotational torque, and the knurling 22 is provided.
b is attached. The air inlet 41 is made of an elastic material such as rubber or soft synthetic resin, and
The stopper lid 23 is detachably provided.

[0050]

Eighth Embodiment of the Invention FIG. 9 shows an eighth embodiment of the present invention.
For example, the plug 20 has the same shape as that of FIG. 6, an exhaust port 80 is formed in a part of the side wall of the plug body 22, and an exhaust valve 81 for opening and closing the exhaust port 80 is provided. It is an exhaust pressure type that is characterized by the points. As a result, by discharging the foaming gas of the sparkling beverage from the exhaust port 80, it is possible to prevent the internal pressure from rising more than necessary due to the foaming action of the sparkling beverage in the container body 1, and to drink the sparkling beverage. After that, by sending pressurized air into the container body, the foaming action of the sparkling beverage is prevented and the sparkling beverage is prevented from being degassed. The exhaust port 80 and the exhaust valve 8
1 makes it possible to automatically adjust the internal pressure in the container main body, it becomes a safety valve that exhausts when the pressure becomes more than necessary, and the pressure inside the container can be lowered without opening by external operation. it can.

The configuration of FIG. 9 will be described in detail below. This liquid container is provided with at least a bottomed cylindrical container body 1 capable of containing a sparkling beverage, and a stopper body 20 with a stopper lid 23 for closing an opening 3 of the container body 1, and the stopper body 2 of the stopper body 20.
A pressure pump 60 for feeding pressurized air into the container body 1
And a partition plate 4 with a suction valve for partitioning a pump chamber 61 of the pressurizing pump 60 and a space 82 facing the storage chamber of the container body 1.
0 is provided, and an exhaust port 80 is formed in the plug body 22 located below the partition plate 40, and the exhaust port 80 is normally closed by an exhaust valve 81. The stopper body 20 in this case is a stopper body 20 of a liquid container composed of a cylindrical stopper body 22 and a stopper lid 23, and the lower portion of the stopper body 22 of the stopper body 20 is fitted with the container body 1. Fitting part 45
And a partition plate 40 with a suction valve 42 that divides the pump chamber 61 inside the stopper body 22 and the space 82 facing the accommodation chamber of the container body 1 is provided side by side. A pressurizing pump 60 having an operating portion 48 that can be operated from the outside is provided between the stopper lid 23 and an outlet port 80 in the stopper body 22 that forms a space 82 that faces the storage chamber of the container body 1.
Is formed.

The operation of the embodiment of FIG. 9 will be described below. In the state shown in FIG. 9, the effervescent beverage is stored in the container body 1, and when the inner pressure of the container body rises above a preset pressure due to the effervescent action of the effervescent beverage, the exhaust valve 81 is opened and closed from the exhaust port 80. The gas is discharged to the outside of the container and the internal pressure of the container body is lowered. Therefore, the stopper does not come off and the stopper does not easily rotate due to the increase in the internal pressure. Further, when the valve is opened, unnecessary gas can be discharged to the outside of the container by pulling the exhaust valve 81.

When the effervescent beverage is drunk, the effervescent beverage gradually loses its taste and its taste deteriorates. In order to prevent this, in the present invention, the operation as described in the above [0043] is performed. Therefore, it is preferable to send the pressurized air into the container body 1.

Also in the configuration of FIG. 9, a spring such as a coil spring may be provided between the valve 46 and the stopper lid 23.

[0055]

[Modifications] The container body 1 uses a metal vacuum double container in FIGS. 1 to 9, but instead of this, a known glass vacuum double bottle or a heat insulating material such as urethane foam is used. It is preferable to use a double container filled with
A single container made of metal or synthetic resin may be used. Further, the opening of the container body 1 is preferably wide.

In each of the embodiments, it is preferable that the plug 20 can be washed completely, and it is desirable that it can be disassembled and washed. Further, as the stopper, it is preferable that the stopper 20 shown in each drawing and the generally used stopper can be selected and used.

The formation position of the pressure adjusting port 25 in FIG. 1 is not limited to the central portion of the bottom plate portion 22a, but may be another location. The formation positions of the suction port 41 and the suction valve 42 in FIGS. 6, 7, and 9 are not limited to those shown in the figures, and can be formed at appropriate positions.

Pressurizing pump 60 shown in FIGS. 6, 7 and 9.
It is preferable that the maximum outer diameter of the pressurizing pump 60 is smaller than the maximum outer diameter of the container body 1.

[0059]

According to the liquid container of the first aspect, the stopper is provided with the pressure adjusting port, the pressure escaping passage and the pressure adjusting valve, and the pressure adjusting valve operates when the internal pressure in the container body is normal pressure. Since the adjustment port is closed and opened at high pressure,
Even if the internal pressure rises due to the foaming action of the sparkling beverage contained in the container body, the high-pressure gas is discharged from the exhaust port by opening the pressure control valve. Therefore, as a result of the internal pressure in the container body being lowered, the plug body including the push plug can be used without any trouble, and the plug body does not come off from the container body.

According to the liquid container of the second aspect, the pressure adjusting valve can surely open and close the pressure adjusting port.

According to the liquid container stopper of claim 3, if the structure of the opening of the container body is the same as that of the present invention, the stopper can be attached to the existing container body, which is extremely convenient. Becomes

According to the liquid container of the fourth aspect, since the container body and the stopper can be screwed simultaneously at two places, the two are firmly screwed (fitted), and the internal pressure of the container body rises or falls. In either case, the stopper does not come off from the container body.

According to the liquid container of claim 5, in addition to the effect of claim 4, the stopper is covered with the stopper lid, so that the stopper is hygienic and the stopper is carelessly removed from the container body. It can be prevented from coming off.

According to the liquid container of claim 6, when the effervescent beverage is put in the container body, or when the effervescent beverage is drunk and the volume is gradually reduced, the container body is pressurized by the pressure pump. By sending pressurized air into the inside, it is possible to prevent the foaming action of the sparkling beverage, prevent the sparkling beverage from falling out, and drink the beverage in the original taste state.

According to the liquid container stopper of claim 7, there is the same advantage as in the case of claim 3.

According to the liquid container of claim 8, there is the same advantage as in the case of claim 6.

According to the liquid container of claim 9, when the internal pressure of the container main body containing the sparkling beverage rises, the high pressure gas in the container main body is discharged from the exhaust port, and the internal pressure in the container main body is discharged. To lower the stopper from the container body,
It is possible to prevent the stopper from being unable to rotate. Further, when the effervescent beverage is put in the container body, or when the effervescent beverage is drunk and the capacity is gradually decreased, the pressurized pump is operated to release pressurized air into the container body. By sending, the foaming action of the effervescent beverage can be prevented, the effervescent beverage can be prevented from being let out, and the beverage can be in the original taste state.

According to the tenth aspect of the liquid container stopper, if the structure of the opening of the container body is the same as that of the present invention, the stopper body can be attached to the existing container body, which is extremely convenient. Become.

[Brief description of drawings]

FIG. 1 is an overall vertical cross-sectional view of a first example of an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of a main part of a second example of the embodiment of the present invention.

FIG. 3 is a vertical sectional view of a main part of a third example of the embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of a main part of a fourth example of the embodiment of the present invention.

5 is a vertical cross-sectional view of a main part of the modified example of FIG.

FIG. 6 is an overall vertical sectional view of a fifth example of the embodiment of the present invention.

FIG. 7 is a vertical cross-sectional view of a main part of a sixth example of the embodiment of the present invention.

FIG. 8 is a vertical cross-sectional view of a main part of a seventh example of the embodiment of the present invention.

FIG. 9 is a vertical sectional view of an entire eighth example of the embodiment of the present invention.

[Explanation of symbols]

1 container body 3 openings 20 plug 22 Plug body 23 Stopper 25 Pressure adjustment port 26 Pressure relief passage 27 Exhaust port 28 Pressure regulating valve 29 spring 32 Inner wall 33 Outer side wall 39 lid 40 dividers 41, 41a Inlet port 42 suction valve 43 Fitting part (female screw) 45 Fitting part (male thread) 46 valves 47 valve rod 48 Operation part 49 Inhalation valve 50 lid 60 pressure pump 61 Pump room 72 Check valve 80 exhaust port 81 Exhaust valve

Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B65D 51/16 B65D 51/16 E

Claims (10)

[Claims] 1. A liquid container comprising at least a bottomed cylindrical container body capable of containing a sparkling beverage and a stopper for closing an opening of the container body, wherein the surface of the stopper body facing the inside of the container body. Forms a pressure adjusting port for lowering the internal pressure when the internal pressure in the container body rises, and a pressure relief passage communicating the pressure adjusting port and the exhaust port inside the plug body. A pressure adjusting valve is provided in the pressure relief passage, and the pressure adjusting valve is configured to close the pressure adjusting port when the internal pressure in the container body is normal pressure and to open the valve when the internal pressure is high. And a liquid container. 2. The liquid container according to claim 1, wherein a spring for normally pressing down the pressure adjusting valve to close the pressure adjusting port is provided in the pressure relief passage. 3. When the internal pressure in the container body rises, the pressure adjusting port formed on the surface facing the inside of the container body for lowering the internal pressure, and the pressure adjusting port and the exhaust port are communicated with each other. A pressure relief passage formed inside the plug body, a pressure adjustment valve provided in the pressure relief passage, and a spring provided in the pressure relief passage to normally push down the pressure adjustment valve to close the pressure adjustment port. A stopper for a liquid container, which is characterized in that 4. A liquid container comprising at least a bottomed cylindrical container body capable of containing a sparkling beverage and a stopper for closing an opening of the container body, wherein the container body comprises an inner container and an outer container. A heat insulating space is formed between the inner container and the inner peripheral side wall of the opening of the inner container, and a male screw is formed on the outer peripheral side wall of the opening of the outer container. The inner peripheral side wall and the outer peripheral side wall are double-formed, and the inner peripheral side wall is formed with a male screw that is screwed into the female screw of the inner container, and the outer peripheral side wall is formed with a female screw that is screwed into the male screw of the outer container. A liquid container characterized by the above. 5. The liquid container according to claim 4, wherein a lid for covering the plug is detachably provided above the outer peripheral side wall of the plug. 6. A liquid container comprising at least a bottomed cylindrical container body capable of containing a sparkling beverage and a stopper for closing an opening of the container body, wherein the stopper body pressurizes the inside of the container body. A liquid container comprising a pressurizing pump for sending air. 7. A plug body for a liquid container, which comprises a tubular plug body and a lid, wherein a lower part of the plug body is formed with a fitting portion for fitting with the container body. A pressurizing pump having a partition plate provided with a suction valve in a position facing the container main body in the stopper main body, and having an operation section that can be operated from the outside between the partition plate and the stopper lid of the stopper main body. A stopper for a liquid container, wherein the stopper is provided. 8. A liquid container comprising at least a bottomed cylindrical container body capable of containing a sparkling beverage and a stopper body with a stopper lid for closing an opening of the container body, wherein the stopper body has a container body. An air inlet for introducing pressurized air into the inside and a check valve for opening and closing the air inlet are provided, and the stopper lid of the stopper is pressed to open the check valve. A liquid container characterized in that 9. A liquid container comprising at least a bottomed cylindrical container body capable of containing a sparkling beverage and a stopper body with a stopper lid for closing an opening of the container body, wherein the stopper body of the stopper body is provided. Is provided with a pressurizing pump for sending pressurized air into the container body, and a partition plate with a suction valve for partitioning the pump chamber of the pressurizing pump and the space facing the storage chamber of the container main body, and a position lower than the partition plate. A liquid container, characterized in that an exhaust port is formed in the main body of the plug, and the exhaust port is normally closed by an exhaust valve. 10. A plug body for a liquid container, which comprises a cylindrical plug body and a lid, and a fitting portion for fitting with the container body is formed at a lower portion of the plug body of the plug body. A partition plate with a suction valve that divides a pump chamber in the stopper body and a space facing the accommodation chamber of the container body is provided horizontally, and an operation that can be operated from the outside between the partition plate and the stopper lid of the stopper body. A stopper for a liquid container, characterized in that a pressurizing pump having a portion is provided, and an exhaust port is formed in a stopper main body that forms a space facing a storage chamber of the container main body.