WO2020009233A1

WO2020009233A1 - Stopper

Info

Publication number: WO2020009233A1
Application number: PCT/JP2019/026853
Authority: WO
Inventors: 美香本庄; 和田　潔
Original assignee: 凸版印刷株式会社
Priority date: 2018-07-06
Filing date: 2019-07-05
Publication date: 2020-01-09
Also published as: CN112368219A

Abstract

Proposed is a stopper in which it is possible to extract contents by suction from the upper part of a container, and which can moreover be resealed. A stopper used by attaching to an opening in a container, wherein the stopper is characterized in that: the stopper is configured from a stopper body, a suction straw, and a cap; the stopper body is such that a welding part, a flange part, and a cylindrical outer tube comprising a male thread onto which the cap is threadably mounted are integrally molded; the suction straw has a cylindrical pipe part that is fitted into the inner periphery of the outer tube of the stopper body, and a brim part for engaging with the uppermost part of the outer tube; the cap has a thread part in which a female thread is provided to the inner periphery, the female thread being threadably mounted on the male thread provided to the outer tube of the stopper body, and also has an inner tube; and a movable valve capable of sliding axially in the inner periphery of the inner tube is provided to the inside of the inner tube.

Description

Spout

TECHNICAL FIELD The present invention relates to a spout for sucking and attaching to a container for storing liquid or powder, which can be re-opened and re-closed with a relatively simple structure, has high sealing properties, and has a high sealing property. The present invention relates to a spout that requires less residual liquid.

Conventionally, as a container for storing liquid or powder, a container called a pouch with a plug, in which a plug is attached to a flexible bag-like container, is known. A pouch with a spout does not use the entire contents at once, but even when used for dispensing, the container shrinks according to the amount used, so the contents do not touch the air to the end It has the advantage that it can be used.

The plug structure and nozzle described in Patent Literature 2 are plugs used for the pouch with the plug, and have dimensions of an inner peripheral surface of a plug and a head of a male member in a conventional plug (Patent Literature 1). The accuracy requirement was very high, and it could not be adopted for inexpensive items such as disposable containers. It was intended to solve the problem of difficulty in responding.

(4) Conventional pouches with a spout generally have a method in which a bag is attached to a predetermined server and the contents are naturally dropped out of a spout attached to a lower part of the bag. The plug described in Patent Document 2 has a similar structure.

However, if the container has a large content, it may be difficult to lift and invert it because of its considerable weight. Thus, for example, in a container for supplying ink to a printing machine, there is a demand that the ink be sucked by a suction pump and used, but the plug described in Patent Document 2 cannot cope.

Japanese Patent No. 3411270 JP 2016-216073 A

The problem to be solved by the present invention is to propose a plug capable of discharging the contents by suction from the upper part of the container and which can be resealed.

One aspect of the present invention for solving the above-mentioned problem is a synthetic resin plug used by being attached to an opening of a container, comprising a plug main body, a suction straw, and a cap. Has a cylindrical outer cylinder provided with a male screw to which the cap is screwed, a flange portion for holding the entire plug, and a welded portion for welding to the opening of the container, are integrally formed, The suction straw has a cylindrical tube portion fitted to the inner periphery of the outer cylinder of the plug body, and a collar portion for locking to the outer cylinder, and the cap is provided on the outer cylinder of the plug body. A threaded portion having an internal thread on the inner periphery to be screwed to the male thread, and an inner cylinder fitted to the inner periphery of the suction straw and capable of inserting a suction plug for sucking the contents of the container. A movable valve slidable in the axial direction on the inner circumference of the inner cylinder is provided inside the cylinder, and the movable valve has a suction plug. When the suction plug is not inserted, the opening at the tip of the inner cylinder is closed, and when the suction plug is inserted, it elastically engages with the tip of the suction plug and slides on the inner circumference of the inner cylinder. A mouth plug characterized by being opened.

In addition, the container has flexibility, and the suction straw has a tapered vertical body having a cross-sectional shape in which a gap is formed between the container and the container when the contents of the container are suctioned from one end of the tube portion by the suction plug. Of the container may be extended, and the pipe portion may be provided with an air hole capable of sucking air in the container.

The collar of the suction straw and the cap may be sealed by a contact ring provided inside the top of the cap.

つ Also, the collar of the suction straw and the cap may be sealed by an elastic packing inserted inside the top of the cap.

Further, another aspect of the present invention is a suction content discharging container provided with the above-mentioned plug.

The spout according to the present invention has a relatively simple structure composed of a small number of components, such as a spout main body, a suction straw and a cap, but can be used for suction which was impossible with a conventional spout. Opening and resealing became possible by the action of the movable valve.

FIG. 1 is a perspective view showing a plug according to a first embodiment of the present invention. FIG. 2 is a perspective view showing a state where a cap is removed from the state of FIG. FIG. 3 is a perspective view showing three parts constituting the plug according to the first embodiment of the present invention with the suction straw removed from the state of FIG. FIG. 4 is an explanatory cross-sectional view schematically showing a state in which the plug according to the first embodiment of the present invention is attached to a container. FIG. 5 is an explanatory cross-sectional view schematically showing a state in which a suction plug is to be inserted into the plug according to the first embodiment of the present invention. FIG. 6 is an explanatory cross-sectional view schematically showing a state in which the movable valve is opened by completely inserting the suction plug from the state of FIG. FIG. 7 is an explanatory cross-sectional view schematically showing a state in which another embodiment of the plug according to the first embodiment of the present invention is attached to a container. (1) of FIG. 8 is a perspective view showing a plug according to a second embodiment of the present invention. (2) of FIG. 8 is a schematic cross-sectional view showing the AA ′ cross section of (1) of FIG. FIG. 9 is a perspective view showing a state where the cap is removed from the state of FIG. FIG. 10 is a perspective view showing three parts constituting the plug according to the second embodiment of the present invention with the suction straw removed from the state of FIG. FIG. 11 is an explanatory cross-sectional view schematically showing a state in which the plug according to the second embodiment of the present invention is attached to a container. FIG. 12 is an explanatory cross-sectional view schematically showing a state in which a suction plug is to be inserted into the plug according to the second embodiment of the present invention. FIG. 13 is a sectional explanatory view schematically showing a state in which the movable valve is opened by completely inserting the suction plug from the state of FIG. FIG. 14 is an explanatory cross-sectional view schematically showing a state in which another embodiment of the plug according to the second embodiment of the present invention is attached to a container. FIG. 15A is an explanatory cross-sectional view illustrating the operation and effect of the blocking prevention column. FIGS. 15 (2) and 15 (3) are schematic cross-sectional views showing examples of other cross-sectional shapes of the blockage prevention column.

(1st Embodiment)
The plug according to the first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a plug 1 according to a first embodiment of the present invention. FIG. 2 is a perspective view showing a state where the cap 30 is removed from the state of FIG. Further, FIG. 3 shows a state in which the suction straw 20 is removed from the state of FIG. 2, and the three parts constituting the plug 1 according to the first embodiment of the present invention, namely, the plug main body 10, the suction straw 20, and the cap 30 are removed. It is the perspective view shown. FIG. 4 is an explanatory cross-sectional view schematically showing a state in which the plug 1 according to the first embodiment of the present invention is attached to the container 2 (a container for discharging a suction content). Hereinafter, as shown in FIG. 4, the up-down direction in a state where the suction content discharging container is erected is defined as up and down.

The plug 1 according to the first embodiment of the present invention is a plug made of a synthetic resin used by being attached to the opening of the container 2, and includes a plug main body 10, a suction straw 20, and a cap 30. You.

The plug body 10 includes a cylindrical outer cylinder 11 having an external thread 14 into which the cap 30 is screwed, a flange portion 12 for holding the entire plug, and a welding portion for welding to the opening of the container 2. 13 are integrally formed.

The suction straw 20 has a cylindrical pipe portion fitted to the inner periphery of the outer cylinder 11 of the plug body 10, and the lowermost portion (one end) reaches the bottom surface of the container 2 in a state where the suction straw 20 is attached to the container. At the top (the other end), there is a collar 21 for locking to the top of the outer cylinder 11. That is, the tube portion of the suction straw 20 extends from the lowermost portion to the uppermost portion. By adjusting the length of the suction straw 20 according to the size of the container, it can be applied to containers of various sizes. The lowermost part of the suction straw 20 may be provided with irregularities so as not to be attracted to the bottom surface of the container 2. In addition, in a state where the suction straw 20 is attached to the container, the lowermost part does not need to reach the bottom surface of the container 2 or may reach it.

The cap 30 is fitted on the inner periphery of the suction straw 20 with a screw portion 31 having an internal thread which is screwed to the external thread 14 provided on the outer cylinder 11 of the plug body 10, and for sucking the contents. And a movable valve 33 that is slidable in the axial direction on the inner periphery of the inner cylinder 32.

As shown in FIG. 5, the movable valve 33 closes the opening at the tip of the inner cylinder 32 when the suction plug 40 is not inserted, and as shown in FIG. 6, the suction plug 40 is inserted. When this occurs, the distal end of the inner cylinder 32 is opened by elastically engaging with the distal end of the suction plug and sliding on the inner periphery of the inner cylinder 32.

When the suction plug 40 is removed from the plug 1, the movable valve 33 moves to the original position together with the suction plug 40 because the movable valve 33 is engaged with the front end of the suction plug 40, and the opening at the front end of the inner cylinder 32 is opened. Close the part again. That is, the container 2 can be resealed and reopened.

In the example shown in FIG. 4, the collar 21 of the suction straw 20 and the cap 30 are sealed by a contact ring 34 provided inside the uppermost portion of the cap.

On the other hand, in another embodiment of the plug 1 shown in FIG. 7, the flange 21 of the suction straw 20 and the cap 30 are connected by a perforated disk-shaped elastic packing 35a inserted inside the uppermost part of the cap 30. The collar of the suction straw 20 and the plug main body 10 are hermetically sealed by a perforated disk-shaped elastic packing 35b arranged at the uppermost part of the plug main body. Various rubber materials can be used for the

elastic packings

35a and 35b.

On the other hand, since the suction plug 40 and the inner cylinder 32 of the cap 30 are sealed by the ring packing 41 attached to the suction plug as shown in FIG. 5, there is no possibility that air or contents leak during the suction operation. Absent.

Although not specifically shown, in order to fill the contents into the container 2 to which the plug 1 according to the first embodiment of the present invention is attached, a filling nozzle having the same shape as the suction plug 40 is inserted into the plug. 6, filling can be performed with the movable valve 33 opened.

各種 As a material used for the plug 1 according to the first embodiment of the present invention, various synthetic resins can be used. Specifically, polyolefin resins such as low density polyethylene resin (LDPE), high density polyethylene resin (HDPE), linear low density polyethylene resin (LLDPE), polypropylene resin (PP), polyolefin elastomer, and polyethylene terephthalate Polyester resin such as resin (PET), polybutylene terephthalate resin (PBT), polyethylene naphthalate resin (PEN), polymethyl methacrylate resin (PMMA), polyacrylonitrile resin, ABS resin, nylon-6, nylon-66 Such as polyamide resin, polystyrene resin (PS), polyvinyl chloride resin (PVC), polyvinylidene chloride resin (PVDC), polycarbonate resin (PC), polyacetal resin, polysulfone resin, fluorine resin It is.

As a specific combination example, polyethylene (PE) resin is used for the plug body 10, the suction straw 20, and the movable valve 33, and the cap 30 is preferably made of a harder PP resin. .

When the collar 21 of the suction straw 20 and the cap 30 are hermetically sealed by the contact ring 34 provided inside the uppermost portion of the cap, the material of the suction straw 20 is a soft LDPE resin having a packing property. It is preferable to use a material having a flexural modulus of less than 200 MPa, such as an LLDPE resin or a copolymer thereof.

On the other hand, when the collar 21 of the suction straw 20 and the cap 30 are hermetically sealed by the elastic packing 35a inserted inside the uppermost portion of the cap, the material of the suction straw 20 is not only PE resin but also PP. Hard materials such as resin and ABS resin can also be used. In this case, it is preferable to insert an elastic packing 35b between the suction straw 20 and the plug body 10 in order to seal the two.

As described above, the spout 1 has a relatively simple structure including a small number of parts, but can be used by suction, and can be opened and resealed by the action of the movable valve 33. is there.

Furthermore, since the number of components is small, and all the components can be molded with a general-purpose synthetic resin, it can be manufactured at low cost.

Conventionally, since the contents have to be supplied from the lower part of the container by gravity, the whole container has been inverted and placed on a dedicated server or the like for use. In that case, since it is possible to use by suction, even a large container does not need to be lifted or inverted, and the usability has been improved.

In the case where the collar 21 of the suction straw 20 and the cap 30 are sealed by tightening the cap 30, the outer cylinder 11 of the plug body 10, the suction straw 20, the inner cylinder 32 of the cap 30, etc. Since it is not necessary to strictly adjust the accuracy of the method, the manufacturing cost can be kept low.

(4) The container for discharging the suction contents provided with the plug 1 can be preferably used particularly as a container for supplying ink to a printing machine or a copying machine.

The faucet 1 'can be easily used for containers of various sizes because other parts can be used in common simply by adjusting the length of the suction straw 20 according to the size of the container 2. It is.

(Second embodiment)
A plug according to a second embodiment of the present invention will be described in detail with reference to the drawings. FIG. 8A is a perspective view showing a plug 1 ′ according to a second embodiment of the present invention. FIG. 8B is a schematic cross-sectional view showing a cross section taken along the line BB ′ of FIG. FIG. 9 is a perspective view showing a state where the cap 30 is removed from the state of FIG. Further, FIG. 10 shows a state in which the suction straw 20 ′ is removed from the state of FIG. 9 and three parts constituting the plug 1 ′ according to the second embodiment of the present invention, namely, the plug main body 10, the suction straw 20 ′, FIG. 2 is a perspective view showing a cap 30. FIG. 11 is an explanatory cross-sectional view schematically showing a state in which the plug 1 'according to the second embodiment of the present invention is attached to the container 2 (a container for discharging the contents of suction). In the following, as shown in FIG. 11, the up-down direction in a state where the suction content discharging container is erected is defined as up and down.

The plug 1 ′ according to the second embodiment of the present invention is a plug made of a synthetic resin which is used by being attached to an opening of a flexible container 2, and includes a plug main body 10 and a suction straw 20 ′. And a cap 30.

The suction straw 20 ′ has a lower end 23, which is a cylindrical pipe portion fitted to the inner periphery of the outer cylinder 11 of the plug body 10, and is provided at the uppermost part for locking the uppermost part of the outer cylinder 11. It has a collar 21. When the suction straw 20 ′ reaches the vicinity of the bottom of the container from the lower end 23 at one end of the lower end 23 when attached to the container, and sucks the contents of the container 2 by the suction plug 40 described later, A tapered vertical-shaped obstruction prevention column 24 having a cross-sectional shape (irregular cross-section) in which a gap is formed between the container 2 and the container 2 extends. Further, the lower end 23 of the suction straw 20 'is provided with an air hole 22 for sucking air in the container. By adjusting the length of the anti-blocking column 24 according to the size of the container, it can be applied to containers of various sizes. In addition, the bottom part does not need to reach the bottom vicinity of a container, and the blockage prevention pillar 24 does not need to reach | attain in the state where the suction straw 20 'was attached to the container, and may do so.

ため Because the blocking prevention column 24 has an irregular cross section, a gap is formed between the lower end 23 of the suction straw 20 ′ and the content liquid. Therefore, the content liquid can be sucked from this gap. Further, as shown in (1) of FIG. 15, the blocking prevention column 24 forms a gap between itself and the container 2, so that the content liquid can be sucked without being closed.

In the example of FIG. 8, the blockage prevention column 24 has a cross shape, but as shown in (2) of FIG. 15 and (3) of FIG. If so, the sectional shape is not particularly limited.

In the example shown in FIG. 11, the blocking prevention column 24 is fitted as a separate component to the lower end 23 of the suction straw 20 ', but may be formed integrally with the suction straw 20'.

The presence of the air holes 22 at the lower end 23 of the suction straw 20 'allows the air in the container 2 to be preferentially sucked at the start of suction, so that a stable liquid supply in the absence of air in the container 2 Becomes possible. The diameter of the air hole 22 is suitably about 1 mm to 5 mm.

The cap 30 is fitted on a screw portion 31 having an internal thread on the inner periphery thereof, which is screwed to the male screw 14 provided on the outer cylinder 11 of the plug body 10, and on the inner periphery of the suction straw 20 'to suck the contents. And a movable valve 33 slidable in the axial direction on the inner periphery of the inner cylinder 32.

As shown in FIG. 12, when the suction plug 40 is not inserted, the movable valve 33 closes the opening at the tip of the inner cylinder 32. As shown in FIG. When this occurs, the distal end of the inner cylinder 32 is opened by elastically engaging with the distal end of the suction plug and sliding on the inner periphery of the inner cylinder 32.

If the suction plug 40 is removed from the plug 1 ′, the movable valve 33 moves to the original position together with the suction plug 40 because the movable valve 33 is engaged with the front end of the suction plug 40, and the movable valve 33 moves to the original position. Close the opening again. That is, the container can be resealed and reopened.

In the example shown in FIG. 11, the collar 21 of the suction straw 20 'and the cap 30 are sealed by a contact ring 34 provided inside the top of the cap.

On the other hand, in another embodiment of the plug 1 ′ shown in FIG. 14, the collar 21 of the suction straw 20 ′ and the cap 30 are a perforated disk-shaped elastic packing inserted inside the uppermost part of the cap 30. The collar of the suction straw 20 'and the plug body 10 are sealed by a perforated disk-shaped elastic packing 35b arranged at the top of the plug body. Various rubber materials can be used for the

elastic packings

35a and 35b.

On the other hand, the suction plug 40 and the inner cylinder 32 of the cap 30 are sealed by the ring packing 41 attached to the suction plug as shown in FIGS. There is no fear of putting it out.

Although not particularly shown, in order to fill the contents into the container 2 to which the plug 1 ′ according to the second embodiment of the present invention is attached, a filling nozzle having the same shape as the suction plug 40 is inserted into the plug, Filling can be performed with the movable valve 33 open, as shown in FIG.

In the plug 1 ′ according to the second embodiment of the present invention, the lower end 23 of the suction straw 20 ′ has an opening for sucking the contents, and the contents liquid is sucked from this opening, In addition to being able to supply a large amount of content liquid, when air is present inside the container, the air is preferentially sucked, so that the same effect as the air hole 22 is exhibited.

各種 As a material used for the plug 1 ′ according to the second embodiment of the present invention, various synthetic resins can be used. Specifically, polyolefin resins such as low density polyethylene resin (LDPE), high density polyethylene resin (HDPE), linear low density polyethylene resin (LLDPE), polypropylene resin (PP), polyolefin elastomer, and polyethylene terephthalate Polyester resin such as resin (PET), polybutylene terephthalate resin (PBT), polyethylene naphthalate resin (PEN), polymethyl methacrylate resin (PMMA), polyacrylonitrile resin, ABS resin, nylon-6, nylon-66 Polyamide resin, polystyrene resin (PS), polyvinyl chloride resin (PVC), polyvinylidene chloride resin (PVDC), polycarbonate resin (PC), polyacetal resin, polysulfone resin, fluorine rubber A silicon rubber, Teflon (registered trademark) packing and the like.

As an example of a specific combination, a polyethylene (PE) resin is used for the plug body 10, the suction straw 20 ', and the movable valve 33, and a harder PP resin is used for the cap 30. good.

When the collar 21 of the suction straw 20 'and the cap 30 are hermetically sealed by the contact ring 34 provided inside the uppermost portion of the cap, the material of the suction straw 20' is a soft material having packing property. It is preferable to use a material having a flexural modulus of less than 200 MPa, such as an LDPE resin, an LLDPE resin, or a copolymer thereof.

On the other hand, when the collar 21 of the suction straw 20 'and the cap 30 are hermetically sealed by the elastic packing 35a inserted inside the top of the cap, the material of the suction straw 20' may be other than PE resin. Hard materials such as PP resin, ABS resin and the like can also be used. In this case, it is desirable to insert an elastic packing 35b between the suction straw 20 'and the plug body 10 in order to seal the two.

材質 As the material of the blocking prevention column 24, the same material as that of the suction straw 20 'can be used. The suction straw 20 'and the blockage prevention column 24 may be integrally formed or may be separate parts.

The plug 1 ’has a relatively simple structure including a small number of components, but can be used by suction, and can be opened and resealed by the operation of the movable valve 33. In addition, the provision of the blocking prevention column 24 having a gap with the container 2 prevents the suction straw 20 'from closing even when the residual liquid is reduced. For this reason, it became possible to minimize the amount of the residual liquid remaining in the container 2 without being sucked.

In addition, since the plug 1 ′ can be used in common with other components simply by adjusting the length of the blocking prevention column 24 according to the size of the container 2, it can be used for containers of various sizes. It is easily possible.

Further, since the air hole 22 for sucking the air in the container is provided at the lower end of the suction straw 20 ', the air existing in the upper part of the container 2 is sucked preferentially at the start of suction, and the air disappears. Since the supply of the content liquid is started at the point in time, stable liquid supply without air biting can be achieved.

When the collar 21 of the suction straw 20 ′ and the cap 30 are sealed by tightening the cap 30, the outer cylinder 11 of the plug body 10, the suction straw 20 ′, and the inner cylinder of the cap 30 are formed. Since it is not necessary to strictly adjust the precision of 32 or the like, the manufacturing cost can be kept low.

In addition, since the lower end of the suction straw 20 'is open to the inside of the container, the suction amount can be increased, and in addition to exhibiting the same effect as the air hole 22 provided at the lower end, there is no air bite. Stable liquid supply becomes possible.

The suction contents discharging container provided with the plug 1 ’can be preferably used particularly as a container for supplying ink to a printing machine or a copying machine. Particularly, in the case of expensive contents, it meets the demand for using the last drop without waste.

<Example 1>
A plug having a structure as shown in FIGS. 8 to 11 was prepared. The material of each part was made of polyethylene resin for the plug body, suction straw and blockage prevention column, and polypropylene resin for the cap. The inner diameter of the suction straw was 12 mm, and the total length was 10 mm for the short pipe portion and 100 mm for the column for preventing blockage, which was the length below the movable valve. The spout was welded to the opening of a soft pouch having a top and bottom dimension of 225 mm, a width of 200 mm, and a capacity of 1 liter to obtain a container for discharging a suction content. This container was filled with 1 liter of water as a content liquid. Water was sucked from the suction plug inserted in the plug, and the amount of residual liquid was measured.

<Example 2>
Example 2 As Example 2, a container for dispensing suction contents was prepared using a plug that does not use a blockage prevention column as shown in FIG. 1 and evaluated similarly. The length of the suction straw was 110 mm as the length below the movable valve.

<Comparative Example 1>
As Comparative Example 1, a suction content discharging container was prepared and evaluated in the same manner as in Example 1, except that the length of the suction straw was set to 50 mm below the movable valve. Table 1 summarizes the above results.

In the container using the plug of Example 2 which is the plug according to the first embodiment, the residual liquid was 30 ml, whereas the port of Example 1 which was the plug according to the second embodiment. In the container using the stopper, the residual liquid was 8 ml. Thereby, it was confirmed that the remaining liquid can be reduced by providing the blocking prevention column. On the other hand, the length of the suction straw was absolutely insufficient, and the container using the plug of Comparative Example 1 which was not provided with the clogging prevention column was blocked by the plug, and the residual liquid amounted to 50 ml.

The present invention can be used for packaging containers.

1, 1 '········································································································ · Suction straw 21 ··· Collar part 22 ··· Air hole 23 ··· Lower end part 24 ··· Blocking prevention pillar 30 ··· Cap 31 ··· Screw part 32 ··· Inner cylinder 33 ··· Movable Valve 34

Contact ring

35a, 35b Elastic packing 40 Suction plug 41 Ring packing

Claims

A synthetic resin faucet for use by attaching to the opening of the container, comprising a faucet body, a suction straw, and a cap,
The plug body has a cylindrical outer cylinder provided with a male screw to which the cap is screwed, a flange portion for holding the entire plug, and a welding portion for welding to the opening of the container. Are molded integrally,
The suction straw has a cylindrical pipe portion fitted to the inner periphery of the outer cylinder of the plug body, and a collar portion for locking to the outer cylinder,
The cap is fitted on a screw portion having an internal thread which is screwed to a male screw provided on the outer cylinder of the plug body on an inner periphery, and is fitted on an inner periphery of the suction straw to suck the contents of the container. An inner cylinder into which a suction plug for inserting can be inserted, and a movable valve slidable in the axial direction on the inner circumference of the inner cylinder inside the inner cylinder,
The movable valve closes the opening at the tip of the inner cylinder when the suction plug is not inserted, and elastically engages with the tip of the suction plug when the suction plug is inserted. A spigot, which slides on the inner circumference of the inner cylinder to open the tip of the inner cylinder.
The container has flexibility,
The suction straw has a tapered vertical-shaped obstruction prevention pillar having a cross-sectional shape that forms a gap between the container and the container when the contents of the container are suctioned by the suction plug from one end of the tube portion. broth,
The plug according to claim 1, wherein an air hole through which air in the container can be sucked is provided in the pipe portion.
The spigot according to claim 1 or 2, wherein the collar of the suction straw and the cap are hermetically sealed by a contact ring provided inside a top of the cap.
4. The spout according to claim 1, wherein the collar of the suction straw and the cap are hermetically sealed by an elastic packing inserted inside an uppermost portion of the cap. 5.
(5) A container for discharging a suction content, comprising the spout according to any one of (1) to (4).