JP2007191160A - Spout assembly and package with spout - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spout assembly which can be completely sealed, can be easily opened, can be re-closed, has a small number of parts when it is abandoned, and is easily abandoned, and to provide a package with a spout. <P>SOLUTION: The spout assembly 10 comprises a spout main body 20 consisting of a spout lower part 30 and a spout upper part 50 breakable from the spout lower part 30 through a thin-walled part 40, and a cap 70 consisting of a cap lower part 80 screwed into the spout main body 20 and a cap upper part 90 with an engaging part to the spout upper part 50 being back to back to the cap lower part 80. The package with the spout has the spout assembly 10 and can be retort-sterilized. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a spout assembly, and more specifically, a spout assembly that can be completely sealed, easily opened, reclosed, has a small number of parts when discarded, and has a spout. It relates to a package.

  In the present specification, “ratio”, “part”, “%” and the like indicating the composition are based on mass unless otherwise specified, and the “/” mark indicates that they are integrally laminated. “PET” is “biaxially stretched polyethylene terephthalate film”, “ON” is “biaxially stretched polyamide film”, “OPP” is “biaxially stretched polypropylene film”, “CPP” is “unstretched polypropylene film”, “LDPE” is “low density polyethylene”, “MDPE” is “medium density polyethylene”, “LLDPE” is “linear low density polyethylene”, “PVDC” is “polyvinylidene chloride”, and “PP” is “polypropylene” Is an abbreviation, functional expression, common name, or industry term.

(Main application) The spout assembly of the present invention is attached to a package to form a package with a spout. Examples of the main use of the package with a spout include juices, sports drinks, and nutritional drinks. It is a package of liquid materials with low viscosity such as drinking water, tea, coffee beverages, soups, noodle soups, seasonings, jelly-like beverages. Preferably, the retort-sterilized contents include liquid food such as rice cake, jelly-like food, liquid soup, seasoning, curry, stew, meat sauce, and other liquid foods. Thus, the packaged product obtained by filling and packaging the contents in the retort pouch with the spout according to the present invention, and further performing the retort treatment or the boil treatment, has heat resistance, pressure resistance, water resistance, barrier property, heat resistance, Excellent toseal and pinhole resistance, withstands heat treatment associated with processing such as retort processing or boil processing, no bag breakage or leakage of contents, etc. It is excellent in filling and packaging suitability, distribution suitability, storage suitability, etc.
However, it is not particularly limited as long as it can be completely sealed, easily opened, reclosed, has a small number of parts at the time of disposal, and requires easy disposal.

(Background Art) Conventionally, a packaging body that stores liquids, fluid substances including small solids is lightweight, inexpensive, deformable and easy to handle. Plastic soft packaging bags having various forms such as bags and others are used. In order to make it easy to take out the contents, the wrapping bag is usually devised in some way. For example, as a simple method, there is an object in which a notch that is an opening trigger is provided at the end of the bag. However, this lacks recloseability and lacks versatility.
In addition, in order to facilitate the opening of the contents and to facilitate the beverage of the contents, or to facilitate the pouring of the contents to facilitate its removal, a spout is attached to the opening on one side of the bag. A package with a spout has also been proposed. These packaged products are easy to handle, have resealability and the like, and in recent years, their demand is increasing mainly among young people. However, a normal spout comprises a cap that is screwed with the spout main body, and it is difficult to completely seal the contents.
Furthermore, depending on the contents, a boil sterilization process, a heat sterilization process using hot water or steam, or a pressure heat sterilization (retort sterilization) process using hot water or steam may be required for sterilization. However, in a package with a spout, the sealing property required by the standard for retort products is out of the standard because the spout cannot be completely sealed, and the spout deforms due to heating, and the adhesive part peels off. The retort sterilization process was difficult due to such risks.
Accordingly, the spout assembly is required to be completely sealed, easily opened, and reclosed. The package with the spout having the spout assembly can be completely sealed and easily opened. In addition, reclosing is possible, and the number of parts is small at the time of disposal, and it is required to be easy to discard.

(Prior Art) Conventionally, the present applicant has sealed the opening of the cylindrical mouth portion constituting the spout body with a hermetic sealing material, and opens the spout by combining the sealing material. The bag for retorts with a spout is disclosed (for example, refer to patent documents 1 and 2). However, when opening, there is a risk that the sealing material will be broken or liquid may spill out, and when it is discarded after use, the package, cap and removed sealing material are garbage. Therefore, there is a problem that the number of discarded points is large and complicated.
In addition, the applicant of the present invention, when opening the cap, the cap forming part breaks and separates and opens the thin part, tears the sealing plate at the thin part, or folds the cap body at the thin part and cuts the opening. A spout is also disclosed (for example, see Patent Documents 3 to 4). However, when opening, the thin part is broken, torn, bent and cut off, but it requires a lot of force, and it is difficult for elderly people and children to open and spills the contents. .
In this way, conventionally, it can be completely sealed, preferably retort sterilization treatment, can be easily opened by elderly people and children with small force when opened, can be reclosed, and has a small number of parts when discarded, There was no description of a spout assembly that was easy to discard and a package with spout.

JP 2001-328862 A JP 2000-33958 A Japanese Patent Laid-Open No. 10-152162 JP 2000-142769 A

  In order to solve the above-described problems, the present inventors have made extensive studies and have completed the present invention. The object is to provide a spout assembly and a spout with a spout that can be completely sealed, easily opened, reclosed, have a small number of parts when discarded, and are easy to discard.

In order to solve the above-mentioned problem, a spout assembly according to the invention of claim 1 is a spout assembly comprising a spout body and a cap screwed to the spout body. A lower part of the spout, a lower part of the spout and an upper part of the spout through a thin portion that can be broken, and a cap lower part where the cap is screwed to the spout main body The cap part has a joint part.At the time of initial opening, the cap is removed and inverted, and the engaging part on the cap part is engaged with the upper part of the spout, and then the thin part is folded and / or rotated. The cap is opened by breaking and separating, and the cap is reversed again at the time of reclosing, and is closed by screwing with the lower part of the spout.
The spout assembly according to the invention of claim 2 has a vertical rib on the outer side of the spout upper portion, a rib for locking the vertical rib on the engaging portion of the cap upper portion, and the rib and the rib In combination with the vertical rib, after the upper part of the spout and the upper part of the cap are engaged, the thin part is opened by breaking and / or rotating by bending and / or rotating.
A spout assembly according to a third aspect of the present invention has an outer screw on the outer side of the upper portion of the spout, and has an inner screw that engages with the outer screw at an engaging portion of the upper portion of the cap. After engaging the upper part of the spout and the upper part of the cap by screwing with the outer screw, the thin part is opened by breaking and separating by folding and / or rotating. is there.
The spout assembly according to the invention of claim 4 is such that the thin-walled portion is located on the side of the package body from the position that becomes the top surface after opening, and has an internal thread outside the spout upper portion, and the cap upper portion is engaged. An outer screw that is screwed to the inner screw at the portion, and the upper part of the spout and the upper part of the cap are engaged by screwing the outer screw and the inner screw, and then bent and / or rotated. The thin-walled portion is opened and opened by breaking and separating.
The package with a spout according to the invention of claim 5 has the spout combination according to any one of claims 1 to 4.
The package with a spout according to the invention of claim 6 is such that the package with a spout can be sterilized by retort.

According to the first aspect of the present invention, there is provided a spout assembly that can be completely sealed, easily opened, reclosed, and has a small number of parts at the time of disposal and is easy to discard.
According to the second to fourth aspects of the present invention, it can be completely sealed, and can be opened easily even by an elderly person or a child with a small force when opened, and can be reclosed. An exit association is provided.
According to the present invention of claim 5, a spout assembly that can be completely sealed, can be opened easily even by an elderly person or a child with a small force at the time of opening, can be reclosed, and has a small number of parts and is easy to dispose at the time of disposal. A package with a spout having a body is provided.
According to the sixth aspect of the present invention, in addition to the effect of the fifth aspect, since the retort sterilization treatment can be performed, a package with a spout that can be stored for a long time at room temperature is provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional view of a spout assembly showing one embodiment of the present invention.
2 is a plan view and a cross-sectional view of the spout main body of FIG.
FIG. 3 is a cross-sectional view for explaining an opening process of the spout assembly showing one embodiment of the present invention.
FIG. 4 is a cross-sectional view for explaining an opening process of the spout assembly showing one embodiment of the present invention.
FIG. 5 is a cross-sectional view for explaining the opening process of the spout assembly showing one embodiment of the present invention.

(Spout Outlet Assembly) As shown in FIG. 1, the spout outlet assembly of the present invention is shown in FIG. 1 (B), and the spout main body 20 shown in FIG. And a cap 70 shown.
The spout main body 20 includes a spout lower portion 30, a spout lower portion 30, and a spout upper portion 50 through a thin portion 40 that can be broken. The spout lower portion 30 is opened to discharge the contents, the cylindrical portion 31, the screw 33 screwed to the screw 81 of the cap lower portion 80, the flange 35, and the base portion 37 that integrates the package body by heat sealing or the like. It is made up of. The spout upper part 50 is an engaging part 51 having vertical ribs 53, and the top surface part 55 is sealed with a sealing material 60 as shown in FIG. 2.

  (Sealing Seal Material) As the sealing material 60, it is sufficient that the opening portion of the top surface portion 55 of the spout upper portion 50 is tightly bonded and the opening portion can be sealed. Preferably, conditions such as retort processing or boil processing are used. Endure. Specifically, a laminated material such as a substrate / heat seal layer, a substrate / barrier layer / heat seal layer, or the like can be used. As the substrate, a plastic film such as PET or ON, or a metal foil such as an Al foil may be used alone or in combination. As the barrier layer, plastic films such as OPP, PET and ON coated with a barrier material such as PVDC, plastic films such as OPP, PET and ON coated with a thin film barrier material such as Al and silicon oxide, Al foil, etc. are used. As the heat seal layer to be used, plastics such as LDPE, MDPE, LLDPE, PP, or the like, a copolymer, a modified body, or the like is used.

  These may be laminated by a known lamination method such as a dry lamination method or an extrusion coating method. As the heat seal layer, by selecting a constituent material or the like, it can also be used as a hermetic seal material 60 having easy peel property or complete seal property. However, in the case of breaking through the hermetic seal material 60, an easily breakable structure such as an Al / heat seal layer is preferable.

  The sealing of the sealing material 60 to the top surface portion 55 can be performed by a known heat sealing method such as a bar seal, a rotary roll seal, an impulse seal, a high frequency seal, and an ultrasonic seal. The sealing may be sealed in advance after filling when the contents are filled from the opening of the top surface portion 55 of the spout upper part 50 and when filling from the bottom of the package. When the package with a spout using the spout combination of the present invention is subjected to retort processing or boil processing, the cap 70 is attached to the spout main body 20 even when the top surface 55 is sealed with the sealing member 60. It may be in a screwed state.

  (Cap) The cap 70 includes a cap lower part 80 screwed into the spout main body 20 and a cap upper part 90 having an engaging portion with the cap lower part 80 back to back. The cap lower part 80 has a screw 83 that is screwed into the screw 33 of the spout lower part 30, and is provided with an annular protrusion 83 that performs a closing function during reclosing. The cap upper portion 90 has a locking rib 91 and an undercut 93 that engage with the vertical rib 53 of the spout upper portion 50.

  (Spout outlet assembly) The material of the spout main body 20 and the cap 70 is not particularly limited, and may be a known material, for example, a material such as LDPE or PP, which matches the shape thereof by a known molding method such as an injection molding method. What is necessary is just to manufacture-mold using the injection molding method etc. using the shaping | molding die etc. which were made. The spout main body 20 and the cap 70 may be any of a transparent body or an opaque body. Between the spout main body 20 and the cap 70, a packing, an O-ring, or the like may be interposed as necessary.

  (Closing method) FIG. 3 shows an initial closing method and an initial opening method. First, FIG. 3A shows the cap 70 and the spout main body 20. The spout main body 20 includes a spout lower portion 30 and a spout upper portion 50 through the spout lower portion 30 and a breakable thin portion 40, and the spout upper portion 50 has an engaging portion 51 having a vertical rib 53. The top surface portion 55 is sealed with a hermetic seal material 60.

  In FIG. 3B, the screw 81 of the cap lower part 80 is screwed to the screw 33 of the spout lower part 30 in the state where the cap 70 is screwed to the spout main body 20, and is closed. If necessary, processing such as retort processing or boil processing is performed, and storage, distribution, and sale are performed.

  (Opening method) At the time of use, initial opening is performed. First, in FIG. 3C, the screwing of the cap 70 is reversed and removed, and then reversed. The engaging portion of the cap upper portion 90 of the inverted cap 70 is engaged with the spout upper portion 50. The locking rib 91 of the cap upper part 90 is brought into contact with and connected to the vertical rib 53 of the spout upper part 50 and the undercut 93.

  In FIG. 3D, the cap 70 is bent and / or rotated to break and separate the thin-walled portion 40 so that the cap 70 can be opened and opened. The separated spout upper part 50 is separated together with the hermetic seal material 60 in a state where it is contained in the cap 70. As described above, since the cap 70 is bent and / or rotated for each large and strong cap 70, even an elderly person or a child can easily open the cap 70 with a small force. At the time of disposal, since the spout upper part 50 is still housed in the cap upper part 90, the number of parts is small and it is easy to discard.

  (Anti-tampering prevention) The spout assembly 10 is a structure that can be clearly confirmed to have been opened in order to open it by breaking the thin portion 40 and separating the spout upper part 50, There is also an effect of preventing mischief or a tamper-proof cap.

  (Reclose method) Further, when it is desired to perform reclose, although not shown, the cap 70 can be closed again by being reversed and returned to the original position and screwed into the spout lower portion 30. In the closing, an annular protrusion 83 (also referred to as a contact ring) inside the cap lower portion 80 is flat on the top side of the tubular portion 31 of the spout lower portion 30 where the spout upper portion 50 is cut and separated and removed. By hitting and closing the main part, it is possible to prevent leakage of contents such as liquids and complete sealing.

  (Other spout combination) The spout combination of the present invention has an external thread 57 outside the spout upper part 50 and an external thread at the engaging part of the cap upper part 90, as shown in FIG. An inner screw 95 that is screwed to 57, and the spout 50 and the cap upper 90 are engaged with each other and then bent and / or rotated. Thus, the thin-walled portion may be configured to be opened by breaking and separating, which is the invention of claim 3.

  The initial closing method, the initial opening method, and the reclosing method are the same except for the engagement method between the spout upper portion 50 and the cap upper portion 90. Since the spout upper part 50 and the cap upper part 90 can reliably engage with each other, there is an effect that even an elderly person or a child can easily open the container with a smaller force at the time of opening.

  (Other spout combination) Further, as shown in FIG. 5, the spout combination of the present invention is such that the thin-walled portion 40 is located on the side of the package from the top surface after opening, and the spout upper portion 50 described above. An external screw 97 that is screwed to the internal screw 59 at the engaging portion of the cap upper portion 90, and the spout is formed by screwing the external screw 97 and the internal screw 59. After the upper part 50 and the cap upper part 90 are engaged with each other, the thin part may be broken and separated by folding and / or rotating to form an opening. The initial closing method, the initial opening method, and the reclosing method are the same except for the engagement method between the spout upper portion 50 and the cap upper portion 90. In this case, as shown in FIG. 5C, the sealing seal material 60 is pierced by the blade-like tip of the screw 97 of the cap upper portion 90 and screwed with the inner screw 59 of the spout upper portion 50.

  Since the spout upper part 50 and the cap upper part 90 can reliably engage with each other, there is an effect that even an elderly person or a child can easily open the container with a smaller force at the time of opening. Furthermore, since the thin-walled portion 40 that is broken and easily generates burrs and the like is located on the side of the package from the position that becomes the top of the opening, even if it is directly put on the mouth and drinks, it is safe without touching.

  (Packaging body with spout) The packaging body can be integrated with the base 37 of the spout lower portion 30 of the spout assembly of the present invention by heat sealing or the like, so that a packaging body with spout can be obtained. The package with a spout can be completely sealed, and when opened, it can be opened easily even by an elderly person or a child with a small force and can be closed again.

  The packaging body is not particularly limited as long as it can be integrated with the base 37 of the spout lower portion 30 by heat sealing or the like. For example, a pouch, a container, a bottle, or the like can be applied. Preferably, it is a pouch-type container mainly containing a fluid such as a liquid, and the shape of the pouch body is particularly limited to a two-side seal bag, a three-side seal bag, a four-side seal bag, a pillow packaging bag, a gusset bag, etc. Is not to be done. Preferably, it is a standing pouch shape, and as a standing pouch with a spout, specifically, a pouch (manufactured by Dai Nippon Printing Co., Ltd.), a soft pouch (manufactured by Fuji Seal Co., Ltd.), a handy pouch (manufactured by Toppan Printing Co., Ltd.) Commercial products such as Cheerpack (made by Hosokawa Yoko Co., Ltd.) are also applicable.

  (Pouch body) As the laminated film used for the pouch body, for example, an OPP / heat seal layer, a PET / heat seal layer, an ON / heat seal layer, a PET / ON / heat seal layer and the like can be applied. Examples of the heat seal layer include LDPE, MDPE, LLDPE, CPP alone, a copolymer, or a modified body, but are not limited thereto, and various combinations of laminated films can be used. Specifically, LLDPE was polymerized using a metallocene catalyst, which is also called a single-site catalyst because the active sites are uniform, whereas the active sites are heterogeneous and called multi-site catalysts. An ethylene-α-olefin copolymer, for example, trade name “Kernel” manufactured by Mitsubishi Chemical Corporation, trade name “Evolue” manufactured by Mitsui Petrochemical Co., Ltd., manufactured by Exxon Chemical Co., USA Films such as trade name “EXACT”, trade name “AFFINITY” manufactured by Dow Chemical Co., USA, trade name “ENGAGE”, etc. can be used.

  When the contents stored in the package with a spout are easily physicochemically deteriorated, when storing for a long period of time, it is preferable to laminate a gas barrier layer on the laminated film. In this case, a layer having gas barrier properties such as Al foil, Al vapor-deposited PET, ON or OPP, silica vapor-deposited PET, ON or OPP, PVDC coat ON, PVDC coat PET, EVOH, etc. is added to the laminated film. What is necessary is just to laminate. Further, instead of PET, ON, and OPP of the laminated film, Al vapor-deposited PET, ON or OPP, silica vapor-deposited PET, ON or OPP, PVDC coat ON, and PVDC coat PET may be used.

  These laminated films are usually formed into a film and then laminated with an adhesive, or may be applied as a coating solution and dried to form a coating layer. Specifically, it can be laminated by a method known to those skilled in the art, such as a dry lamination method or an extrusion coating method. Although it does not specifically limit as thickness as this laminated film, It is about 30-1000 micrometers, Preferably it is 50-500 micrometers.

  (Retort sterilization) The package with a spout of the present invention can be preferably used for retort sterilization. What is necessary is just to select what can retort each material of the spout main body 20, the cap 70, the sealing sealing material 60, and a packaging body to comprise from the above. Conventionally, the sealing property required by the standard for retort products has been out of the standard because the spout cannot be completely sealed. However, if the package with spout of the present invention is used, it can be sealed with the sealing sealant 60. Applicable to retort sterilization contents. Because it can be retort sterilized, it can be stored for a long time at room temperature. Of course, elderly people and children can easily open and reclose when opened, and the number of parts is small and easy to dispose.

(Retort) Retort sterilization treatment is performed by first manufacturing a package with a spout filled with contents from the opening of the spout main body and heat-sealing the opening with a sealing material, and then packaging with the spout Retort. The retort treatment uses, for example, a normal retort kettle, the temperature is about 110 to 130 ° C., preferably about 120 ° C., and the pressure is 1 to 3 kgf / cm ² · G, preferably 2.1 kgf / cm ² · About G and about 20 minutes can be used for about 20 to 60 minutes, preferably about 30 minutes. Further, boil treatment may be used, and the temperature may be 90 to 100 ° C., preferably about 90 ° C., and the time may be about 5 to 20 minutes, preferably about 10 minutes. The contents can be subjected to heat sterilization, heat sterilization cooking, or the like by retort treatment or boil treatment as described above.

  EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention further in detail, it is not limited to this.

(Example 1) (1) Using PP resin, as shown in FIG. 1B, the cylindrical portion 31 has an inner diameter of 8.5 mm, an outer diameter of 11 mm, a height of 20 mm, an outer screw 33 and a flange. A spout lower portion 30 having a base 35 and a spout lower portion 30, an inner diameter of the engaging portion 51 is 6.5 mm, an outer diameter is 9 mm, a height is 10 mm, and a vertical spout 53 is provided through the thin portion 40. The integral spout main body 20 was formed by an injection molding method.
(2) Using PP resin, as shown in FIG. 1A, a cap lower part 80 having an inner screw 81 and an annular protrusion 83, and a cap upper part 90 having a locking rib 91 and an undercut part 93. The cap 70 was formed by an injection molding method.
(3) A laminated film having a structure of PET having a thickness of 12 μm / Al foil having a thickness of 9 μm / ON having a thickness of 15 μm / CPP having a thickness of 80 μm was formed by a known dry lamination method.
(4) A standing pouch having a length of 170 mm and a width of 85 mm was prepared using the laminated film.
(5) The base portion 37 of the spout main body 20 manufactured in the above (1) is brought into contact with the opening of the standing pouch, and the contact portion is heat-sealed and bonded to manufacture a package with a spout. did.
(6) Separately, a laminated material composed of 12 μm thick PET / 20 μm thick Al foil / 12 μm thick PET / 40 μm thick CPP is manufactured and used to form a 13 mm long and 13 mm wide material. The hermetic seal material 60 is manufactured.

  (Example 2) A package with a spout of Example 2 was obtained in the same manner as in Example 1 except that the shapes of the spout main body 20 and the cap 70 were as shown in FIG.

  (Example 3) Example except that the shape of the spout main body 20 and the cap 70 is as shown in FIG. 5 and the sealing material 60 is a laminated material made of 50 μm thick Al foil / 40 μm thick CPP. In the same manner as in Example 1, a package with a spout of Example 3 was obtained.

(Evaluation) (1) Retort: From the opening part of the spout of the package with spouts of Examples 1 to 3, the rice cake is filled and packaged, and further, the hermetic seal manufactured in (6) above is provided in the opening part. The material 60 was overlapped with the CPP surfaces facing each other, and then heat-sealed and closely adhered, and both were fixed to produce a package. The package was placed in a retort kettle and subjected to retort treatment (heat sterilization treatment) at a temperature of 120 ° C. and a pressure of 2.1 kgf / cm ² · G for 30 minutes. Next, the cap 70 manufactured in the above (2) was screwed onto 60 parts of the hermetic sealing material of the retorted package to manufacture a retort packaged product.
The above retort packaging products have excellent heat resistance, pressure resistance, water resistance, barrier properties, heat sealing properties, pinhole resistance, etc., and can withstand heat treatment associated with processing such as retort processing, No leakage of contents or the like was observed, and the function as a food packaging container, for example, filling / packaging suitability, distribution suitability, storage suitability, etc., was excellent.
(2) Opening: As shown in FIG. 3C, the screwing of the cap 70 is reversely rotated to remove it, and then reversed. The engaging portion of the cap upper portion 90 of the inverted cap 70 is engaged with the spout upper portion 50. Next, as shown in FIG. 3 (D), the cap 70 was bent and / or rotated, so that the thin-walled portion 40 could be easily broken and separated and opened.
(4) When the contents were eaten, it was delicious.
(5) Reclose: The cap 70 is reversed again and returned to its original position, and can be closed by screwing with the spout lower portion 30, and the annular protrusion 83 inside the cap lower portion 80 is cut by the spout upper portion 50. Since the top portion of the cylindrical portion 31 of the spout lower portion 30 that has been separated and removed can be closed by hitting a flat portion, there was no leakage of the contents.
(6) Since the separated upper portion 50 of the spout is separated together with the hermetic seal material 60 while being contained in the cap 70, the number of parts at the time of disposal is small.

It is sectional drawing of the spout combination which shows one Example of this invention. It is the top view and sectional drawing of the spout main body of FIG. It is sectional drawing explaining the opening process of the spout assembly which shows one Example of this invention. It is sectional drawing explaining the opening process of the spout assembly which shows one Example of this invention. It is sectional drawing explaining the opening process of the spout assembly which shows one Example of this invention.

Explanation of symbols

10: Spout assembly 20: Spout body 30: Spout lower part 31: Tubular part 33, 57, 59, 81, 95, 97: Screw 35: Flange 37: Base 40: Thin part 50: Spout upper part 51 : Engaging portion 53: vertical rib 55: top surface portion 60: sealing material 70: cap 80: cap lower portion 83: annular protrusion 90: cap upper portion 91: locking rib 93: undercut

Claims (6)

In the spout assembly comprising a spout main body and a cap screwed to the spout main body, the spout main body includes a spout lower portion and a spout upper portion through a breakable thin portion. The cap is screwed into the spout main body, and the cap lower portion and the cap upper portion having an engaging portion to the spout upper portion back to back, and when the cap is initially opened, the cap is removed and inverted. After engaging the upper part of the spout, the thin part is opened by breaking and / or rotating, and when reclosing, the cap is reversed again, and the spout A spout assembly that is closed by screwing with the lower part. A vertical rib is provided on the outer side of the upper part of the spout, and a rib for locking the vertical rib on the engaging part of the upper part of the cap. The combination of the rib and the vertical rib allows the upper part of the spout and the upper part of the cap. The spout assembly according to claim 1, wherein the thin portion is opened by breaking and separating by bending and / or rotating after engaging. An outer screw is provided on the outer side of the upper part of the spout, an inner screw is formed on the engaging part of the upper part of the cap and is screwed to the outer screw. 2. The spout assembly according to claim 1, wherein after opening the cap and the cap upper portion, the thin portion is opened by breaking and / or rotating by bending and / or rotating. The thin-walled portion is on the side of the package from the position that becomes the top surface after opening, and has an inner screw on the outer side of the upper portion of the spout, and an outer screw that is screwed to the inner screw on the engaging portion of the upper portion of the cap. Then, after engaging the upper part of the spout and the upper part of the cap by screwing the outer screw and the inner screw, the thin part is opened by breaking and separating by folding and / or rotating. The spout assembly according to claim 1. A package with a spout, comprising the spout combination according to any one of claims 1 to 4. The package with a spout according to claim 4, wherein the package with the spout can be sterilized by retort.

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