JP7179421B2 - Caps with foaming widgets and containers - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cap that mainly closes a beverage container, that is, a cap with a foaming widget that efficiently foams a beverage, and a container using the same.

Conventionally, as a foaming widget that is mainly sealed in a beverage container together with a beverage and for foaming the beverage when the container is opened, a chamber for holding gas is defined, for example, as described in Patent Document 1. a first one-way duckbill valve 4 that allows gas to enter the chamber; and a second valve that ejects gas from the chamber into the beverage when the container is opened. The first duckbill valve 4 is provided integrally with the upper molding 2 at the bottom of the down pipe 6, and the second duckbill valve 5 is integrally provided with the lower molding 3. Are known.

According to such a foaming widget, when the container is opened, the gas in the chamber can be ejected to foam the contents.

Japanese Patent Publication No. 2002-544082

However, the conventional foaming widget as described in Patent Document 1 can freely change its posture in the container after the content is consumed, so it can be sorted according to the size of the mouth of the container body. Because of this, it was sometimes difficult to remove from the container body.

SUMMARY OF THE INVENTION The present invention has been developed in view of such circumstances, and provides a cap with a foaming widget, and a container, from which the foaming widget can be easily taken out and separated after the contents in the container are consumed. for the purpose.

The foaming widget cap of the present invention comprises:
a lid covering the mouth of a container body containing contents;
A cap with a foaming widget, which is fixed to the lid body and includes a widget for sucking and ejecting gas enclosed in the container body,
The widget is
a chamber forming an internal space for storing the gas;
an intake hole formed in the chamber;
an intake valve that allows the introduction of gas from the outside through the intake hole and prevents the discharge of gas;
and a jet hole formed below the intake hole.

In the cap with a foaming widget of the present invention having the above structure, it is preferable that the chamber is fitted and fixed to a fitting cylinder that hangs down from the top wall of the lid.

In the cap with a foaming widget of the present invention having the above configuration, it is preferable that the chambers include an upper chamber having the intake hole and a lower chamber having the ejection hole.

In the cap with foaming widget of the present invention, the intake valve comprises a valve body and a valve seat formed below the intake hole in the upper chamber and above the valve body on which the valve body is seated. It is preferred to have

In the foaming widget-equipped cap of the present invention having the above structure, it is preferable that the valve body is a spherical valve body.

In the cap with foaming widget of the present invention, the upper chamber has a cylindrical shape with a bottom and hangs down from the top wall forming the outer shell, and has an intake cylinder portion surrounding the radially outer side of the intake hole. is preferred.

In the foaming widget-equipped cap of the present invention, in the configuration described above, the lower chamber has a bottomed cylindrical ejection tube portion extending upward from a bottom wall forming an outer shell, and the ejection hole is formed on the bottom wall. It is preferably formed radially inward of the ejection tube portion in the above.

In the cap with a foaming widget of the present invention having the above configuration, it is preferable that the valve body is vertically movable between the upper end portion of the ejection cylinder and the valve seat.

The container of the present invention is a container containing a liquid content, in which the cap with foaming widget according to any one of the above is attached to the container body, and the ejection hole allows the liquid content to flow through regardless of the orientation of the container body. It is characterized by being positioned below the liquid surface.

ADVANTAGE OF THE INVENTION According to this invention, the cap with a foaming widget and a container which can take out a foaming widget simply and can be sort|sorted after consuming the content in a container can be provided.

1 is a front partial cross-sectional view of a container fitted with a cap with a foaming widget according to one embodiment of the present invention; FIG. FIG. 2 is an enlarged cross-sectional view of the cap portion with the foaming widget in FIG. 1; 4 is a flow chart showing a procedure for foaming contents in a container with a foaming widget-equipped cap according to an embodiment of the present invention. FIG. 4 is an enlarged cross-sectional view showing a state in which contents in a container are foamed by a foaming widget-equipped cap according to an embodiment of the present invention.

Hereinafter, with reference to FIGS. 1 to 4, a cap 100 with a foaming widget according to one embodiment of the present invention will be illustrated in detail.

In the present specification, the vertical direction is based on the vertical direction in FIG. 1, and the side on which the lid 40 is arranged along the central axis O of the foaming widget-equipped cap 100 is the upper side, and the lower chamber 20 is arranged. The side to be touched is the bottom. In addition, the radially outward direction is the direction toward the outside along a straight line that passes through the center axis O of the cap 100 with the foaming widget and is perpendicular to the center axis O in FIG. means the direction toward the central axis O.

In the example shown in FIG. 1, the foaming widget-equipped cap 100 according to the present embodiment includes a mouth portion 4 serving as an entrance and exit for contents, a body portion 5 continuing below the mouth portion 4 via a shoulder portion 7, a body portion A container 200 is configured by being attached to a container body 2 having a bottom portion 6 that closes the lower end of the portion 5 . The foaming widget-equipped cap 100 is fitted to the lid body 40 attached to the mouth portion 4 of the container body 2 by screw engagement, and to the outer fitting tube 45 hanging down from the top wall 43 of the lid body 40, and is fitted to the container body. A foaming widget 1 for sucking and ejecting gas enclosed in 2 is provided.

The container body 2 used in this embodiment is a container made of polyethylene terephthalate (PET), and can be formed, for example, by biaxially stretching blow molding a PET preform formed by injection molding. However, it is not limited to this mode, and the material of the container body 2 may be low-density polyethylene (LDPE) or high-density polyethylene resin (HDPE). In this case, the container body 2 can also be formed by subjecting a synthetic resin parison to extrusion blow molding.

As shown in FIG. 2, the outer peripheral surface of the mouth portion 4 of the container body 2 is provided with a male threaded portion 4a for screw engagement with the lid 40. As shown in FIG. A neck ring 4b is arranged at the lower end of the mouth portion 4 for fixing the preform to a blow molding die when the container body 2 is molded by biaxial stretch blow molding.

As shown in FIG. 2, the lid body 40 includes an outer peripheral wall 41 that radially covers the mouth portion 4 from the outside, and a top wall 43 that connects to the upper end portion of the outer peripheral wall 41 and closes the mouth portion 4 from above. . The inner surface of the outer peripheral wall 41 is provided with a female threaded portion 41 a that can be screwed with the male threaded portion 4 a of the mouth portion 4 . A ring portion 42 is connected to the lower end portion of the outer peripheral wall 41 via a weakened portion 42a. The ring portion 42 is a ring-shaped member that surrounds the mouth portion 4 from the outside in the radial direction. An engagement plate 42b that extends upward in the radial direction from the inner peripheral surface of the ring portion 42 connects the male thread portion 4a and the neck ring 4b in the mouth portion 4 to each other. It is undercut-engaged with the projecting wall 4c projecting radially outward from a height position between.

As shown in FIG. 2, the top wall 43 of the lid 40 includes an outer fitting tube 45 that hangs down from the lower surface of the top wall 43 and fits and fixes the widget 1 described later radially inward. An inner fitting tube 47 is provided radially inside the tube 45 and fits inside the intake tube portion 14 of the widget 1 to support the widget 1 . A cutout portion 47a is formed in a part of the inner fitting tube 47 in the circumferential direction, and the gas in the container body 2 can flow into the widget 1 from the intake hole 16a through the cutout portion 47a.

Next, the configuration of the foaming widget 1 for foaming the beverage content will be described in detail.

As shown in FIG. 2, the widget 1 is fixed to the lid 40 by fitting the outer peripheral surface of the chamber 30 forming the outer shell inside the outer fitting tube 45 described above. The widget 1 includes an upper chamber 10 having an intake hole 16 a , a lower chamber 20 having an ejection hole 24 a for ejecting gas, and a spherical valve body 18 (valve body) forming an intake valve 17 . The upper chamber 10 and the lower chamber 20 constitute a chamber 30 that forms an outer shell of the widget 1 and forms an internal space N for containing gas.

The upper chamber 10, as shown in FIG. A cylindrical intake pipe portion 14 that hangs downward is integrally provided at the end. A valve seat 16 that slopes upward radially inward is provided on the inner peripheral surface of the intake cylinder portion 14 . That is, the valve seat 16 has a truncated conical side surface that tapers upward. Above the valve seat 16, an air intake hole 16a is provided through which gas can be supplied from the housing space S of the container body 2 into the internal space N of the widget 1. As shown in FIG. The valve seat 16 serves to prevent gas from leaking from the internal space N to the accommodation space S and the outside by the spherical valve element 18 being seated from below. That is, the spherical valve element 18 and the valve seat 16 constitute an intake valve 17 which is a one-way valve. The intake valve 17 allows gas to be supplied from the accommodation space S into the internal space N through the intake holes 16a, and prevents gas from leaking from the internal space N to the accommodation space S and the outside through the intake holes 16a. is doing. The spherical valve body 18 is vertically movable within a valve body space V formed between the valve seat 16 and the upper end portion of the ejection cylinder portion 24 of the lower chamber 20, which will be described later. In the intake valve 17, when no pressure is generated inside and outside the internal space N (for example, the unopened state shown in FIGS. 1 and 2), the spherical valve element 18 separates from the valve seat 16 by its own weight and ejects. It is opened by coming into contact with the upper end portion of the tubular portion 24 .

The lower portion of the upper peripheral wall 13 is provided with a flange portion 13b and an annular protrusion 13a that protrude radially outward. The annular protrusion 13a is undercut-engaged with an engagement protrusion 23a provided at the upper end of the lower chamber 20, which will be described later, to fix the upper chamber 10 to the lower chamber 20. Hermetically sealed. The flange portion 13b determines the vertical position of the widget 1 with respect to the lid 40 by contacting the lower end portion of the outer fitting cylinder 45 with the upper surface of the flange portion 13b.

The lower chamber 20, as shown in FIG. A cylindrical ejection tube portion 24 extending upward is integrally provided at the radially central portion. A jet hole 24 a is provided on the bottom wall 22 radially inwardly of the jet tube portion 24 . The upper end portion of the ejection cylinder portion 24 enters the cylinder intake portion 14 of the upper chamber 10 from below, and the intake hole 16a provided radially inside the cylinder intake portion 14 is connected to the internal space N and the internal space N via the intake valve 17. It communicates with the ejection hole 24a. Communicating grooves 24c are formed in the upper end portion of the ejection cylinder portion 24 at three locations in the circumferential direction. When the pressure in the internal space N becomes higher than the pressure in the housing space S, the gas filled in the internal space N is discharged into the housing space S from the ejection hole 24a through the communication groove 24c regardless of the position of the spherical valve element 18. can be ejected to

As shown in FIG. 2 , a lower peripheral wall 23 extending upward is connected to the outer peripheral end of the bottom wall 22 . Further, the inner surface of the upper end of the lower peripheral wall 23 is provided with the engaging protrusion 23a as described above, and is undercut-engaged with the annular protrusion 13a formed on the upper peripheral wall 13 of the upper chamber 10. secures the lower chamber 20 with respect to the upper chamber 10 . At this time, the inner space N is airtightly sealed from the housing space S by the outer surface of the annular protrusion 13a coming into contact with the inner surface of the lower peripheral wall 23. As shown in FIG.

In this embodiment, the upper chamber 10 and the lower chamber 20 are configured to be engaged and fixed by undercut engagement between the engaging portions, but the present invention is not limited to this aspect. The upper chamber 10 and the lower chamber 20 may be fitted and fixed by, for example, an interference fit. Alternatively, the upper chamber 10 and the lower chamber 20 may be configured to be joined together by hot plate welding or ultrasonic welding. Furthermore, the chamber 30 may be integrally formed from the beginning.

In this embodiment, as shown in FIG. 2, the widget 1 is fixed to the lid 40, and the lower chamber 20 is positioned downward when the illustrated container body 2 is in an upright posture. The ejection holes 24a are arranged so as to be positioned below the liquid surface of the liquid beverage. Therefore, as will be described later, when the container 200 is opened, the gas in the internal space N is always jetted into the content (beverage) through the jetting holes 24a. Therefore, the contents can be reliably foamed. Since the consumer may open the container 200 with the container body 2 tilted, the ejection holes 24a are positioned below the liquid surface of the beverage regardless of the orientation of the container body 2. It is preferably configured to be positioned.

In the present embodiment, the contents to be filled in the container 200 are preferably foamy beverages such as beer and carbonated beverages, but are not limited to these, and various other liquid beverages and the like can be used. can be filled.

As materials for the upper chamber 10 and the lower chamber 20, for example, synthetic resins such as polypropylene (PP), polyethylene terephthalate (PET), polyethylene (PE), and nylon can be used, but these materials are limited. not to be

Next, a procedure for foaming the content (beverage) in the container body 2 with the foaming widget-equipped cap 100 according to the present embodiment will be described with reference to FIGS. 3 and 4. FIG.

First, contents and gas are filled in the housing space S of the container body 2 shown in FIG. 1 (step S101 in FIG. 3). Here, when the content is a carbonated beverage, carbon dioxide gas or carbon dioxide gas and liquid nitrogen are added as gas together with the content. In the case of non-carbonated beverages, for example liquid nitrogen is added as gas. When the contents and gas are put into the container body 2, the cap 100 with foaming widget is attached to the mouth portion 4 of the container body 2 (step S102). When the lid 40 of the cap 100 with foaming widget is attached to the opening 4, the outer surface of the upper end 45a of the outer fitting tube 45 contacts the inner surface of the opening 4, and the container body 2 is airtightly sealed. .

When the container body 2 is sealed with the foaming widget-equipped cap 100, the pressure inside the container 200 rises due to the gas introduced into the container body 2 and becomes higher than the external atmospheric pressure (step S103). Due to this increase in pressure inside the container 200 , the pressure inside the housing space S of the container body 2 becomes higher than the pressure inside the internal space N of the widget 1 . The gas with increased pressure existing in the head space above the contents in FIG. The space immediately below the top wall 43 of the lid 40 is reached. Further, the gas passes through notches 47a intermittently provided in the circumferential direction of the inner fitting cylinder 47, and passes through the intake holes 16a. At this time, since the pressure in the housing space S of the container main body 2 is higher than the pressure in the internal space N, the spherical valve body 18 is pushed downward and comes into contact with the upper end of the ejection tube portion 24, thereby inhaling air. Valve 17 is open. Therefore, the gas that has passed through the intake hole 16a passes through the space between the spherical valve body 18 and the intake cylinder portion 14 in the valve body space V, and further passes through the gap between the ejection cylinder portion 24 and the intake cylinder portion 14. introduced into the internal space N by (Step S104). At this time, there is a path for the liquid content (beverage) to enter the internal space N through the ejection hole 24a. ) has a greater flow resistance when passing through the channel. Therefore, only a small amount of the beverage enters the internal space N through the ejection holes 24a, and most of the internal space N is filled with the gas in the container body 2. As shown in FIG. During the process of filling the internal space N with gas, the pressure within the internal space N of the widget 1 does not exceed the pressure within the container body 2 . Then, the pressure in the internal space N and the pressure in the container body 2 eventually converge to an equilibrium state (step S105). 1 and 2 show a state in which the pressures in the internal space N and in the housing space S in the container body 2 have reached equilibrium. It should be noted that the passage area of the ejection hole 24a may be made smaller than the passage area of the intake hole 16a to further suppress the contents entering the internal space N from the ejection hole 24a.

The container 200 is then opened by the consumer (step S106). To open the container 200, the consumer grasps the outer peripheral wall 41 of the lid 40 and rotates the lid 40 around the central axis O, thereby weakening the connection between the outer peripheral wall 41 and the ring portion 42. The portion 42a is broken to release the threaded engagement between the lid 40 and the mouth portion 4, thereby moving the lid 40 upward (indicated by the thick arrow in FIG. 4). As a result, a gap is formed between the upper end portion 45a of the outer fitting tube 45 and the mouth portion 4, and the gas filled in the head space in the container body 2 is released between the upper end portion 45a and the mouth portion 4. and the gap between the male threaded portion 4a and the female threaded portion 41a (indicated by thin line arrows in FIG. 4). As a result, the pressure inside the container 200 is released to near the atmospheric pressure at once. At this time, the pressure in the internal space N is not released at once by the intake valve 17 and the ejection hole 24 a having a narrow flow path, so the pressure in the internal space N becomes higher than the pressure in the container 200 . Due to such a rapid increase in relative pressure in the internal space N, the spherical valve body 18 vigorously reaches the valve seat 16, closing the intake valve 17 (step S107), and the gas in the internal space N is released into the ejection hole. 24a into the content (beverage) at a predetermined flow rate (step S108). The predetermined flow rate referred to here does not necessarily mean a constant flow rate, but a flow rate suitable for forming bubbles, which is determined by the flow path area of the ejection hole 24a.

When the gas is jetted into the contents, the contents are agitated and the gas dissolved in the contents is also vaporized to form a large number of fine bubbles (step S109). These bubbles rise toward the headspace of container 200 and form a layer of foam on top of the contents (step S110).

As described above, in this embodiment, the lid 40 that covers the mouth portion 4 of the container body 2 containing the contents, and the lid 40 that is fixed to the lid 40 sucks and ejects the gas enclosed in the container body 2 . Widget 1, Widget 1 includes a chamber 30 forming an internal space N for storing gas, an air intake hole 16a formed in the chamber 30, and air from the outside through the air intake hole 16a. and a jet hole 24a formed below the intake hole 16a. As a result, just by opening the container 200, bubbles can be generated in the contents (drink) without pouring the contents (beverage) into a glass or the like. In addition, when the content is poured into a glass or the like, it is possible to form a foam with an appearance similar to that of pouring out of a barrel. In particular, in this embodiment, since the widget 1 is fixed to the top wall 43 of the lid 40, the widget 1 is fixed immediately after the inside of the container 200 is opened to the atmosphere, compared to the conventional system in which the widget 1 floats on the upper surface of the contents. , the posture of the widget 1 can be stabilized, and bubbles can be stably formed. Further, since the widget 1 is fixed to the lid 40, the widget 1 can be removed from the container body 2 at the same time when the lid 40 is removed from the container body 2. - 特許庁Therefore, the classification of the widgets 1 becomes easy.

In addition, in this embodiment, the chamber 30 is configured to be fitted and fixed to an outer fitting tube 45 (fitting tube) that hangs down from the top wall 43 of the lid 40 . By adopting such a configuration, it is possible to realize the foaming widget-equipped cap 100 in which the widget 1 is fixed to the lid 40 by slightly changing the shape by adding the outer fitting tube 45 to the lid 40 . .

Further, in this embodiment, the chamber 30 is configured to include the upper chamber 10 having the intake hole 16a and the lower chamber 20 having the ejection hole 24a. By adopting such a configuration, the degree of freedom in designing the mold for the chamber 30 is increased, and the shape, arrangement, etc. of the intake holes 16a and the ejection holes 24a can be arbitrarily set.

In this embodiment, the intake valve 17 is configured to have a valve body and a valve seat 16 formed below the intake hole 16a in the upper chamber 10 and above the valve body on which the valve body is seated. By adopting such a configuration, when the relative pressure in the internal space N is low (for example, immediately after the gas is introduced into the container main body 2 in step S101), the valve body moves away from the valve seat 16 due to its own weight or the like, and the intake valve 17 is closed. is greatly opened and the relative pressure in the internal space N increases (for example, immediately after the lid 40 is opened in step S106), the valve body is seated on the valve seat 16 due to the pressure difference, and the intake valve 17 is reliably closed. be able to.

Further, in this embodiment, the valve body is configured as the spherical valve body 18 . By adopting such a configuration, the spherical valve body 18 can be smoothly moved between the valve seat 16 and the upper end portion of the ejection cylinder portion 24, so that the opening and closing of the intake valve 17 can be performed more smoothly. .

Further, in this embodiment, the upper chamber 10 is configured to have an intake pipe portion 14 that hangs down from a top wall 12 that forms an outer shell and has a cylindrical shape with a bottom and that surrounds the radially outer side of the intake hole 16a. As a result, even if the contents enter the internal space N from the ejection hole 24a, the contents above the height of the intake valve 17 are less likely to be filled.

In addition, in this embodiment, the lower chamber 20 has a bottomed cylindrical ejection tube portion 24 extending upward from the bottom wall 22 forming the outer shell, and the ejection hole 24 a is the ejection tube portion 24 in the bottom wall 22 . It was configured to be formed radially inward of the By adopting such a configuration, even if contents enter the internal space N from the ejection hole 24a, it is possible to make it difficult for the contents to fill the internal space N on the radially outer side of the ejection cylinder portion 24 .

Further, in this embodiment, the valve body is configured to be vertically movable between the upper end portion of the ejection cylinder portion 24 and the valve seat 16 . By adopting such a configuration, when the pressure in the internal space N is low, the valve body moves to the upper end of the ejection cylinder part 24 by its own weight or the like and moves away from the valve seat 16, thereby greatly opening the intake valve 17. When the pressure in the internal space N increases, the valve body is seated on the valve seat 16 to reliably close the intake valve 17 .

In addition, the present embodiment is a container 200 containing a liquid content, in which the cap 100 with a foaming widget described in any of the above is attached to the container body 2 , and the ejection hole 24 a is capable of controlling the content of the liquid regardless of the orientation of the container body 2 . It was configured to be positioned below the liquid surface of the object. By adopting such a configuration, when the container 200 is opened, the gas in the internal space N is always jetted into the content (beverage) through the jetting holes 24a. Therefore, the contents can be reliably foamed.

Although the present invention has been described with reference to the drawings and examples, it should be noted that various variations and modifications will be readily apparent to those skilled in the art based on this disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, the functions included in each component can be rearranged so as not to be logically inconsistent, and multiple components can be combined into one or divided. It should be understood that the scope of the present invention includes these.

For example, in the present embodiment, the widget 1 is configured to fit into the inner surface of the outer fitting tube 45 hanging down from the lid 40, but it is not limited to this aspect. Widget 1 may be configured to be secured to lid 40 by other securing means such as threaded engagement or undercut engagement. Also, part of the widget 1 may be formed integrally with the lid 40 .

Moreover, in the present embodiment, the lid 40 is configured to be attached to the mouth portion 4 of the container body 2 by screw engagement, but it is not limited to this aspect. The lid body 40 may be configured to be attached to the mouth portion 4 by means such as plugging engagement.

Further, in the present embodiment, the spherical valve body 18 is used as the valve body used for the intake valve 17, but it is not limited to this aspect, and the valve body can be moved vertically within the valve body space V. It may have other shapes. In addition to the configuration in which the valve body moves within the valve body space V, the valve body may be supported by an elastic member or the like, and the intake valve 17 may be opened and closed by the internal and external pressure difference of the internal space N.

1 Widget 2 Container Body 4 Mouth 4a Male Thread 4b Neck Ring 4c Protruding Wall 5 Body 6 Bottom 7 Shoulder 10 Upper Chamber 12 Top Wall 13 Upper Peripheral Wall 13a Annular Protruding 13b Flange 13c Vertical Rib 14 Intake Pipe 16 Valve Seat 16a Intake hole 17 Intake valve 18 Spherical valve body 20 Lower chamber 22 Bottom wall 23 Lower peripheral wall 23a Engagement protrusion 24 Ejection cylinder 24a Ejection hole 24c Communication groove 30 Chamber 40 Lid 41 Outer peripheral wall 41a Internal thread 42 Ring 42a weakened portion 42b engagement plate 43 top wall 45 outer fitting tube (fitting tube)
45a upper end 47 inner fitting tube (fitting tube)
47a Notch 100 Cap with foaming widget 200 Container N Interior space O Center axis S Storage space V Valve body space

Claims (9)

a lid covering the mouth of a container body containing contents;
A cap with a foaming widget, which is fixed to the lid body and includes a widget for sucking and ejecting gas enclosed in the container body,
The widget is
a chamber forming an internal space for storing the gas;
an intake hole formed in the chamber;
an intake valve that allows the introduction of gas from the outside through the intake hole and prevents the discharge of gas;
and a jet hole formed below the air intake hole. 2. The foaming widget-equipped cap according to claim 1, wherein said chamber is fitted and fixed in a fitting cylinder hanging down from the top wall of said lid. 3. The foaming widget cap according to claim 1 or 2, wherein said chambers comprise an upper chamber having said inlet holes and a lower chamber having said outlet holes. 4. The foaming widget-equipped cap of claim 3, wherein the intake valve has a valve body and a valve seat formed below the intake hole in the upper chamber and above the valve body on which the valve body is seated. . 5. The effervescent widget cap of claim 4, wherein the valve body is a spherical valve body. 6. The foaming widget-equipped cap according to claim 4 or 5, wherein the upper chamber has an intake pipe portion that hangs down from a top wall that forms an outer shell and has a bottomed cylindrical shape and surrounds the radially outer side of the intake hole. . The lower chamber has a bottomed cylindrical ejection tube portion extending upward from a bottom wall forming an outer shell, and the ejection hole is formed radially inward of the ejection tube portion in the bottom wall. A cap with an effervescent widget according to any one of claims 4 to 6. 8. The foaming widget-equipped cap according to claim 7, wherein the valve body is vertically movable between the upper end of the ejection cylinder and the valve seat. 9. A container containing a liquid content in which the cap with a foaming widget according to any one of claims 1 to 8 is attached to the container body, wherein the ejection hole is capable of displacing the liquid content regardless of the orientation of the container body. A container located below the liquid level of

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