JP2014122056A - Spout device and container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an industrially practicable technique in a spout equipped with a cap.SOLUTION: In the spout device equipped with a spout main body and a cap, the spout main body comprises a base portion and a cylindrical portion continuing from the base portion. The spout main body is configured of a gas barrier material. The cap comprises a base portion engaging with the base portion of the spout main body, and the cap is configured to cover the spout main body. At a predetermined position of the cap covering the spout main body is formed a thin-wall portion. The cap is configured of a material that can be integrally bonded to a container main body to which the cap is attached. When rotation force is worked on the cap, the cap is cut off at the thin wall portion into cut pieces, which are separated from the spout main body.

Description

  The present invention relates to a spout device and a container.

  Containers (for example, containers such as pouches) that contain substances that are easily altered by gas (for example, oxygen) (for example, transfusions, enteral nutrients, liquid medicines such as liquid foods, blood, foods) It is composed of a laminate film or the like that includes a high-quality material in a layer structure. Therefore, the contained contents are not easily affected by gas (for example, oxygen).

  However, the spout portion (the spout attached to the container body) of the contents is usually made of a polyolefin resin. Polyolefin resins generally have low gas barrier properties. For this reason, gas (for example, oxygen) permeates and penetrates into the inside from the spout, and there is a risk that the contents may be altered.

The following techniques have been proposed to solve this problem.
“In the hollow cylindrical plug attached to the opening of the container body, at least one of a layer made of a material having a gas barrier property and a layer made of a material having an oxygen absorbing property in a part of the cylindrical portion A plug body characterized in that it is formed of the above layer is proposed (Japanese Patent Laid-Open No. 11-29159).

  “Plastic comprising a base portion inserted and welded between the front and back films constituting the peripheral seal portion of a flexible bag main body made of a gas barrier plastic film, and a main body portion extending outward from the peripheral seal portion. A tubular port is provided, and a gas barrier first intermediate layer is provided in a layer of the body portion of the tubular port over almost the entire range in the axial direction and the direction around the axis, and the upper end of the body portion is A plastic bag mouth member characterized by being sealed by a gas barrier sealing portion has been proposed (Japanese Patent Laid-Open No. 11-128317).

  `` A spout having a dispensing cylinder part and an attachment part attached to the opening seal part of the container main body, having a diaphragm for closing the dispensing outlet in the dispensing cylinder part, on the inner peripheral surface of the dispensing cylinder part A spout characterized in that a multilayer cylindrical sleeve having a functional resin layer is provided, and a lower end portion of the diaphragm and the multilayer cylindrical sleeve is positioned at a position to be a seal portion with the container main body. A spout having a section and a mounting portion attached to the opening seal portion of the container body, the spout cylinder having a diaphragm for closing the spout in the spout cylinder section, and positioned above and below the diaphragm An upper multi-layer cylindrical sleeve and a lower multi-layer cylindrical sleeve having a functional resin layer are provided on the inner peripheral surface of the section, and the lower end of the lower multi-layer cylindrical sleeve is positioned to be a seal portion with the container body The spout characterized by 2008-87786 JP) are.

  “A cylindrical peripheral wall comprising an inner layer and an outer layer made of a first resin, and an intermediate layer made of a second resin having a gas barrier property, located between the inner layer and the outer layer, and by co-injection molding A spout characterized by being integrally formed has been proposed (Japanese Patent Laid-Open No. 2012-162272).

JP-A-11-29159 Japanese Patent Laid-Open No. 11-128317 JP 2008-87786 A JP 2012-162272 A JP 2008-114905 A

  The technical idea of Patent Documents 1 to 4 is basically “a gas barrier film is interposed in the inner part (inner layer) of the cylindrical part of the spout”. In other words, the air is intended to be shut off by the gas barrier film incorporated therein.

  However, the technique of interposing a gas barrier film inside the spout (inner layer) is not simple. This is because the container body (for example, pouch) and the spout need to be bonded and integrated. For the adhesive integration, for example, a heat seal means is employed. For that purpose, the constituent material of the container body surface (inner surface) and the constituent material of the spout surface (outer surface) are required to be the same type. In general, an olefin resin is used as a constituent material of the surface of the container body. Therefore, it is preferable that the surface layer of the spout is also composed of an olefin resin. However, olefinic resins have poor gas barrier properties. Therefore, in the said patent document 1-patent document 4, the gas barrier film is embedded in the olefin resin layer, for example. A spout cannot be constructed to the extent that a gas barrier film is applied to the surface of the spout. This is because the material of the gas barrier film and the olefin resin are not compatible with each other and the adhesion between them is poor. Therefore, the cost is high.

  Further, in use, the spout is generally connected to a tube or the like. At this time, if the outer wall of the spout is dirty, the contaminated material may be mixed with the content being poured out. In addition, if the spout outer wall is damaged, the tube connection may be hindered.

  The techniques of Patent Documents 1 to 4 cannot cope with such problems.

  Patent Document 5 (Japanese Patent Application Laid-Open No. 2008-114905) discloses a spout provided with a cap.

  However, Patent Document 5 has no description of what kind of material the spout or cap is made of. There is no suggestion. In particular, there is no technical idea that the spout is made of a gas barrier material. For example, when a spout is made of a gas barrier material, it is generally very difficult to seal (adhere) because the gas barrier material and the material constituting the container such as a pouch are poorly compatible. . Therefore, the technical idea of Patent Document 5, that is, what structure should be used even if a cap is used, is unclear.

  Therefore, the problem to be solved by the present invention is to solve the above problems. For example, it is to propose what kind of structure can be put into practical use in a spout equipped with a cap.

The above issues are
A spout device comprising a spout body and a cap,
The spout main body includes a base and a cylindrical portion continuing from the base,
The spout body is made of a gas barrier material,
The cap part includes a base part that engages with a base part of the spout body part,
The cap part is configured to cover the spout body part,
A thin portion is formed at a predetermined position of the cap portion that covers the spout body portion,
The cap part is made of a material that can be bonded and integrated with the container body part to be attached,
When a rotational force is applied to the cap part, the cap part is cut at the thin-walled part, and the cut piece is configured to come into contact with and separate from the spout body part. Solved.

  In the spout device, preferably, the spout main body part and the cap part have a diameter closer to the base part at a position farther from the base part than the thin-walled part, on a side farther from the base part. The problem is solved by a spout device having a substantially truncated cone shape with a small diameter.

  In the spout device, preferably, the spout main body and the cap are configured to be physically non-separable in a natural state at a position on the base side. Solved by the device.

  In the spout device, preferably, a closing portion made of a gas barrier material is integrally provided at a tip portion of the spout body portion, and the cap portion is connected to the spout body portion. A closing portion accommodating portion that fits into the closing portion is provided in the cap portion at the time of disposition, and a thin-wall portion is formed at a connecting portion of the closing portion with respect to the spout body portion, and the cap portion When the rotational force is applied to the cap part, the cap part is cut at the thin part of the cap part, and the cut piece is configured to be separated from the spout body part. The closed part cut at the thin part of the part is configured to come into contact with the cap part and is solved by a spout device.

  The spout device is preferably solved by a spout device in which a screwing portion is formed between the spout main body portion and the cap portion.

  In the spout device, preferably, the thin portion of the cap portion is located on the base side with respect to the screwing portion, which is solved by the spout device.

  In the spout device, preferably, a front end portion of the spout body portion is not provided with a closing portion made of a gas barrier material, and the opening portion of the spout body portion is closed by the cap portion. It is solved by a spout device, characterized in that the structure is made.

  Preferably, the spout device is characterized in that the base portion of the spout body portion is thick and the base portion of the cap portion engaged with the base portion of the spout body portion is thin. Is done.

  Preferably, the spout device is characterized in that the base of the spout body is thin and the base of the cap engaged with the base of the spout is thick. Is done.

  The spout device is preferably solved by the spout device, wherein the spout body portion and the cap portion cannot be separated by a shrinking action of the cap portion.

  In the spout device, preferably, the spout main body part and the cap part are configured with engaging parts that are partially engaged with each other at a position on the base side. In the natural state, the problem is solved by a spout device that is physically configured so as not to be separated.

  The subject is a container comprising a container main body and the spout device, wherein a base side of the cap portion of the spout device is bonded and integrated with the container main body. Settled by container.

  A spout device excellent in gas barrier properties can be obtained easily and at a low cost.

The schematic sectional drawing of the principal part of the container of 1st Embodiment which becomes this invention. Schematic cross-sectional view of the main part when the container of FIG. 1 is opened (cap open) Sectional drawing in the AA line of FIG. Partial schematic perspective view of spout body Arrow view in FIG. 1 is a partial schematic cross-sectional view showing the use state of the container of FIG. The schematic sectional drawing of the principal part of the container of 2nd Embodiment which becomes this invention. Schematic sectional view of a spout device according to a third embodiment of the present invention.

  The first aspect of the present invention is a spout device. The spout device includes a spout body. The spout device includes a cap portion. The spout body includes a base. The spout body includes a tubular portion. The base portion and the cylindrical portion are connected. That is, the cylindrical part is provided on the distal end side of the base part. The spout body is made of a gas barrier material. Examples of the gas barrier material include a laminated film including a material having a high gas barrier property such as nylon, ethylene vinyl alcohol, polyvinylidene chloride, polyethylene naphthalate, polyacrylonitrile, metal vapor deposition film, metal foil such as aluminum, etc. Is mentioned. Of course, it is not restricted to these. The gas barrier material preferably has a small permeability coefficient of gas such as oxygen. However, this does not mean that the gas permeability coefficient must be zero. In short, it is only necessary that the gas such as oxygen can be effectively prevented from permeating and the contents are not adversely affected. Specifically, for example, an oxygen permeability coefficient smaller than the oxygen permeability coefficient such as polyethylene or polypropylene is preferable. The cap part is made of a material that can be bonded and integrated with the container body part. For example, it is composed of an olefin resin such as polyethylene or polypropylene. Of course, it is not restricted to these. In general, the cap constituent material is often a material different from the spout body constituent material. For this reason, the spout body part and the cap part are not bonded and integrated by means such as heat sealing. Even if adhesive integration occurs, the integration force is very weak. Both can be easily removed. However, since the cap portion is made of, for example, an olefin resin, the cap portion can be bonded and integrated with the container body portion with a strong force. On the other hand, the spout body portion made of a gas barrier material is difficult to be bonded and integrated with a strong force with respect to the container body portion. The cap part includes a base part. The base part of the cap part is engaged with the base part of the spout body part. The cap portion is configured to cover the spout body portion. The inner surface of the cap part and the outer surface of the spout body part are in intimate contact. The spout device is manufactured by, for example, insert molding. Therefore, the closeness (contact degree: space closing degree) between the inner surface of the cap part and the outer surface of the spout body part is high. As understood from the term “cap”, the cap portion covers the spout body portion. A thin portion is formed at a predetermined position of the cap portion that covers the spout body portion. When turning power is applied to the cap portion, the cap portion rotates. By this rotation, the cap part is cut at the thin part. This cut piece is separated from the spout body.

  The cap portion preferably has a large diameter on the side closer to the base portion and a smaller diameter on the side farther than the base portion at a position (tip side) farther from the thin portion than the base portion. The cap portion has, for example, a substantially truncated cone shape. The cap part covers the spout body part. Therefore, the inner shape of the cap portion is the outer shape of the spout body portion. If the inner shape of the cap portion is a substantially truncated cone shape, the outer shape of the spout body portion is a substantially truncated cone shape. Of course, there may be some differences.

  The spout body and the cap are preferably configured with a threaded portion. “Screw engagement” means “fitting by unevenness”. The thin part of the cap part is preferably located closer to the base side than the screwing part. In other words, the screwing portion is located on the tip side of the thin portion.

  The spout body part and the cap part are configured to be physically unseparable in a natural state at the base side position. For example, the spout body portion is not detached from the cap portion due to the shrinkage of the cap portion. Alternatively, the base of the spout main body has an inverted trapezoidal cross section. The cap portion is hooked to the inverted trapezoidal shape section. Thereby, the spout body part is not detached from the cap part. Or a recessed part (or convex part) is provided in the outer peripheral side part of the base of the said spout main-body part. A convex part (or concave part) that fits into the concave part (or convex part) of the base part of the spout body part is provided on the inner peripheral side surface part of the base part of the cap part. The spout body part is not detached from the cap part even by this kind of uneven fitting means.

  A closing portion made of a gas barrier material is preferably provided integrally with the tip portion (tip opening portion) of the spout body portion. When the cap portion is disposed on the spout main body portion, a closing portion accommodating portion that fits with the closing portion is provided in the cap portion. A thin portion is formed at the connecting portion of the closing portion with respect to the spout body portion. When turning power is applied to the cap portion, the cap portion rotates. By this rotation, the cap part is cut at the thin part of the cap part. This cut piece comes into contact with the spout body. By the rotation, the closing portion is cut at the thin portion. Since the cut | disconnected closure part is accommodated in the closure part accommodating part, it contacts / separates with the said cap part.

  The base of the spout body is thick. In this case, the thickness of the base part of the cap part is thin. Conversely, the thickness of the base of the spout body is thin. In this case, the thickness of the base part of the cap part is thick.

  The second present invention is a container. The container includes a container body. This container comprises the spout device. The base side of the cap part of the spout device is bonded and integrated with the container body part. For example, the inner surface of the container body part and the outer surface of the cap part are integrated by means such as heat sealing. The container body is made of a gas barrier material. However, the inner layer of the container body is made of the same kind (same series) of materials as the cap part constituting material. For example, it is composed of an olefin resin. Therefore, the container main body and the cap are simply bonded and integrated by means of heat sealing, for example. Moreover, this adhesive strength is great.

  Hereinafter, the present invention will be described with specific examples. However, the present invention is not limited to the following examples.

  1 to 6 show a first embodiment of a container (particularly a spout device) according to the present invention. FIG. 1 is a schematic sectional view of an essential part. FIG. 2 is a schematic cross-sectional view of the main part when the spout is opened (when the cap is opened). 3 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a partial schematic perspective view of the spout body. FIG. 5 is a view in the direction of arrow C in FIG. FIG. 6 is a partial schematic sectional view in use.

  In each figure, 1 is a container main body (for example, pouch) made of a gas barrier material. As the gas barrier material, the materials exemplified above are appropriately used. Of course, the materials are not limited to the above listed materials. The inner layer of the container main body 1, in particular, the portion to be bonded to the spout device is made of a resin material having a high adhesiveness to the spout device (the same kind of material as the cap portion constituting material of the spout device). For example, it is composed of an olefin resin. The container body 1 is also known from the above-mentioned patent documents. Furthermore, since the container main body 1 has a well-known content, detailed description is omitted.

  2 is a spout device. The spout device 2 includes a spout body 2a and a cap 2b. As can be seen from FIG. 1, the spout body 2a is covered with a cap 2b. It is as if the cap 2b is fitted on the outside of the spout body 2a. The outer shape of the spout body 2a is the inner shape of the cap 2b. The spout device 2 is obtained by insert-molding the cap 2b after the spout body 2a is molded. Therefore, the spout device 2 can be obtained simply and at a low cost.

  The spout body 2a is made of a gas barrier material (for example, nylon resin). The spout body 2a is particularly composed of one kind of gas barrier resin material. Resins such as polymer alloys are also considered to be a type of resin. Even when two or more types of resins having good compatibility with each other are used, the compatibility is good. In this case as well, it is considered as one type of resin in the present invention. In the present embodiment, the spout body 2a is particularly composed of one (same type) gas barrier resin material. Since the spout body 2a does not contain a gas barrier film as in the prior art, the spout body 2a can be formed easily and at low cost.

  The cap portion 2b need not be made of a gas barrier resin material. Rather, it is made of a resin material that is different from the gas barrier resin material. The cap part 2b is made of a material that is highly adhesive to the container body part 1. For example, it is composed of an olefin resin. The olefin resin is not generally called a gas barrier resin. The gas barrier resin that constitutes the spout body 2a and the olefin resin that constitutes the cap 2b are different from each other. Therefore, adhesiveness is bad. For this reason, the spout main-body part 2a and the cap part 2b of the spout apparatus 2 obtained by insert molding are not adhere | attached. Both peel off easily. Therefore, as will be described later, the two are integrated by physical (shape) action (effect).

  3 is a base of the spout body 2a. As can be seen from FIGS. 1 and 2, the base 3 has an annular shape. The annular base 3 has a slightly lower outer diameter than the upper outer diameter. That is, it has a reverse taper shape. A concave portion may be formed on the outer surface portion of the base portion 3 instead of the reverse tapered shape. The thickness of the base 3 (the distance in the left-right direction in FIG. 1) is thick. A cylindrical portion 4 is integrally provided on the upper portion of the annular base portion 3. The cylindrical portion 4 has a large outer diameter (inner diameter) on the side close to the base 3 and a smaller outer diameter (inner diameter) on the side far from the base 3. Therefore, strictly speaking, the cylinder is a truncated cone. Reference numeral 5 denotes a closing portion that closes the upper end opening of the cylindrical portion 4. The closing part 5 has a non-circular cross section in the horizontal direction (left-right direction in FIG. 1). The closing part 5 and the cylindrical part 4 are connected at the upper end edge of the cylindrical part 4 (see FIG. 1). As can be seen from FIG. 1, the connecting portion 6 has a thin-walled structure. Reference numeral 7 denotes a concave portion (small diameter portion). The concave portion (small diameter portion) 7 is formed in the outer wall portion of the closing portion 5. 8 is a screwing part (concave part) formed in the outer peripheral side surface of the spout main-body part 2a (cylindrical part 4). The threaded portion (recessed portion) 8 is formed below the cylindrical portion 4. As can be seen from FIGS. 3 and 4, the length in the circumferential direction of the threaded portion (concave portion) 8 is a little less than a half circumference. It is not as long as a screw groove. For example, the length in the circumferential direction of one screwing portion 8 is such that the angle (α) is about 5 to 30 ° as can be seen from FIGS. About 2 to 4 screwing portions 8 having such a length may be formed in one turn. Although one piece may be sufficient, the more one is excellent in the openability of the cap 2b. That is, the cap portion 2b can be balanced when the cap portion 2b is rotated and operated. The depth of the threaded portion (recessed portion) 8 formed on the outer peripheral side surface of the spout body 2a (cylindrical portion 4) is, in order along the opening direction of the cap 2b, as can be seen from FIGS. It is shallow. As can be seen from FIG. 4, the screwing portion 8 is formed to be inclined (spiral) so that the cap 2 b moves upward when the cap 2 b is rotated in the opening direction.

  9 is a base part of the cap part 2b. The base 9 has a substantially square cross section. The base 9 having a substantially cross-sectional shape is thin. That is, the base 9 is thinner than the base 3 (see FIGS. 1 and 2). The base 9 and the base 3 having a substantially cross-sectional shape are in close contact with each other. Both are combined by a shape action (physical action). The spout body 2a and the cap 2b are not separated from each other in the natural state due to the coupling by the shape action of the base 3 and the base 9. That is, since the cap part 2b is formed by insert molding with respect to the spout body part 2a and the resin of the spout body part 2a and the resin of the cap part 2b are different (incompatible), the spout body part 2a and the cap part Even if 2b is not bonded (welded) to each other at the contact portion, the spout body 2a and the cap 2b are not separated in the natural state. Reference numeral 10 denotes a cylindrical portion that covers the cylindrical portion 4 and the closing portion 5. The inner shape of the cap portion 2b is the outer shape of the spout body portion 2a. The inner surface of the cap 2b is in close contact with the outer surface of the spout body 2a. Accordingly, the resin material of the cap portion 2b enters the portion of the concave portion (small diameter portion) 7. 11 is an accommodating part formed in the cap part 2b. The accommodating part 11 accommodates the closing part 5. Corresponding to the concave portion (small diameter portion) 7, the cap portion 2 b has a convex portion 12. The spout body 2a and the cap 2b are not separated from each other in the natural state due to the concave / convex fitting between the closing part 5 and the accommodating part 11. 13 is a screwing part (convex part). The threaded portion (convex portion) 13 is formed on the inner peripheral surface of the cylindrical portion 10. The screwing part (concave part) 8 and the screwing part (convex part) 13 are in a male-female relationship. Accordingly, when the cap portion 2b is rotated in a predetermined (opening) direction, a screwing portion (concave portion) 8 and a screwing portion (convex portion) 13 provided in a somewhat spiral shape (inclined in an oblique direction) are provided. Therefore, the cap portion 2b moves toward the upper side (upper side in FIG. 1). Reference numeral 14 denotes a thin portion formed on the base 9 side (lower side) from the position of the screwing portion 13. When the cap 2b is rotated in a predetermined (opening) direction, the cap 2b moves upward, so that the cap 2b is cut at the thin portion 14. The closing part 5 has a non-circular horizontal cross section. Therefore, the closing part 5 rotates with the rotation of the cap part 2b. In connection with this, the connection part 6 of a thin structure is cut | disconnected. Since the closing part 5 remains accommodated in the accommodating part 11, after the connection part 6 is cut, the closing part 5 operates together with the cap part 2b.

  The operation of the container configured as described above is as follows. The cap part 2b is rotated in the opening direction. Then, an upward force acts on the cap portion 2b. Since the outer shape of the cylindrical portion 4 and the inner shape of the cylindrical portion 10 are frustoconical, the upward movement of the cap portion 2b is smooth. The thin portion 14 is cut by the upward movement of the cap portion 2b. The connection part 6 is also cut | disconnected. When the cap 2b is further rotated in the opening direction, the cap 2b is removed from the spout body 2a (see FIG. 2). Thereafter, as shown in FIG. 4, the tube 15 is connected to the spout body 2a (cylindrical portion 4). At this time, if the tube 15 is inserted to the position of the threaded portion (recessed portion) 8, the tube 15 having some elasticity is difficult to come off due to the frictional action in the threaded portion (recessed portion) 8. The contents (for example, liquid) in the container main body 1 are led out through the connected tube 15. Until this time, the outer surface of the spout body 2a was protected by the cap 2b. Therefore, the outer surface of the spout body 2a is clean. The anxiety when the outer surface of the spout body 2a is contaminated, that is, the fear that the contents are contaminated when the contents are led out is eliminated. There is no possibility that the outer surface of the spout body 2a is damaged. Therefore, there is no problem in the tube 15 connection work.

FIG. 7 is a schematic cross-sectional view of the main part of the container according to the second embodiment of the present invention.
In the second embodiment, the base 3 of the spout body 2a is thin and the base 9 of the cap 2b is thick (see FIG. 7). The thickness of the base is only the reverse of the case of the first embodiment. Other configurations are the same as those of the above-described embodiment. The same components are denoted by the same reference numerals. Therefore, detailed description is omitted.

FIG. 8 is a schematic cross-sectional view of a spout device according to a third embodiment of the present invention.
In the third embodiment, there is no closing portion 5. Other configurations are the same as those of the first embodiment. The same components are denoted by the same reference numerals. Therefore, detailed description is omitted. Since there is no closing part 5 made of a gas barrier resin, there is a concern about oxygen permeation from this point. Therefore, the spout device of the first embodiment is preferable to the spout device of the third embodiment.

DESCRIPTION OF SYMBOLS 1 Container main-body part 2 comprised with gas-barrier material 2 Spout apparatus 2a Spout main-body part 2b comprised with gas-barrier material Cap part 3 Base part of spout main-body part 4 Cylindrical part 5 Spout main-body part Closure part 6 Connection part 7 Recessed part 8 Threaded part (recessed part)
9 Base part of cap part 10 Cylindrical part of cap part 11 Housing part 12 Convex part 13 Threaded part (convex part)
14 Thin part 15 Tube

Claims (12)

A spout device comprising a spout body and a cap,
The spout main body includes a base and a cylindrical portion continuing from the base,
The spout body is made of a gas barrier material,
The cap part includes a base part that engages with a base part of the spout body part,
The cap part is configured to cover the spout body part,
A thin portion is formed at a predetermined position of the cap portion that covers the spout body portion,
The cap part is made of a material that can be bonded and integrated with the container body part to be attached,
The spout device is configured so that when the rotational force is applied to the cap portion, the cap portion is cut at the thin-walled portion, and the cut piece is separated from the spout main body portion. 2. The spout device according to claim 1, wherein the spout body and the cap are configured so as to be physically unseparable in a natural state at a position on the base side. The spout body and the cap are
2. A substantially truncated cone shape having a large diameter near the base and a small diameter farther from the base at a position farther from the base than the thin portion. Item 2. The spout device of item 2. A closing portion made of a gas barrier material is integrally provided at the tip of the spout body,
At the time of disposing the cap part to the spout main body part, a closing part accommodating part fitted to the closing part is provided in the cap part,
A thin-walled portion is formed in the connecting portion of the closing portion with respect to the spout body portion,
When turning force is applied to the cap portion, the cap portion is cut at a thin portion of the cap portion, and the cut piece is configured to be separated from the spout body portion. The spout device according to any one of claims 1 to 3, wherein the closing portion cut at the thin portion of the closing portion is configured to come into contact with and separate from the cap portion. The spout device according to any one of claims 1 to 4, wherein a screwing portion is formed between the spout body portion and the cap portion. The spout device according to claim 5, wherein the thin portion of the cap portion is located on the base side with respect to the screwing portion. The tip of the spout body is not provided with a closure made of a gas barrier material,
The spout device according to any one of claims 1 to 3, wherein an opening of the spout body is closed by the cap. The spout device according to any one of claims 1 to 7, wherein a thickness of a base portion of the spout body portion is thick and a thickness of a base portion of the cap portion engaged with the base portion of the spout body portion is thin. The spout device according to any one of claims 1 to 7, wherein a thickness of a base portion of the spout main body portion is thin and a thickness of a base portion of the cap portion engaged with the base portion of the spout main body portion is thick. The spout device according to any one of claims 2 to 9, wherein the spout body cannot be separated from the cap portion by a shrinking action of the cap portion. The spout body portion and the cap portion are formed with engaging portions that are partially engaged with each other at the base side position, and are physically separated in the natural state by the engaging portions. The spout device according to any one of claims 2 to 9, wherein the spout device is configured to be impossible. A container comprising a container main body and the spout device according to any one of claims 1 to 11,
A container characterized in that a base side of the cap part of the spout device is bonded and integrated with the container body part.

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