JP2019064712A - Spout and pouch with spout - Google Patents

Abstract

To provide a spout that can prevent a teeming hole from having dust stuck or being touched with a human hand, and has no leakage of liquid contents when opened, and a pouch with the spout.SOLUTION: The present invention relates to a spout 1 and a pouch with the spout such that the spout is joined to teem contents into a pouch body, and also used for the pouch with the spout contained in the pouch body and hermetically sealed, the spout being characterized in comprising an outer pipe 10 having an opening part on one side and a closed part 12 on the other side and an inner pipe 20 fitted into the outer pipe. The outer pipe of the spout comprises a joint part 25 joint to the pouch body on an outer peripheral surface of the one side and an outflow port part 15 on a peripheral wall between the joint part and the closed part, and the inner pipe of the spout has a one-side opening as a tap 21 and an other-side opening as an introduction opening 24, and the inner pipe is fitted in the outer pipe in an extendable state.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a spout and a spouted pouch used for a spouted pouch which is joined to a pouch body so as to allow the contents to be poured out and is accommodated and sealed in the pouch body.

  Conventionally, a pouch (wrapping bag) using a laminate (flexible packaging material) in which a heat fusible resin layer using a heat fusible resin, an intermediate layer having a barrier property, a base layer having heat resistance and the like are laminated For example, relatively low viscosity liquids such as juices, sports drinks, nutritional drinks, drinking water, tea, coffee drinks, jelly drinks etc., and the like to suck or drink this liquid. A variety of spouted pouches with straws and spouts (pouring devices, spouts) are used. Since such a spout pouch is lightweight, easy to carry, and deformable and easy to handle, plastic pouches mainly composed of plastic in various forms such as a free standing bag made of a flexible packaging material, a cutlet bag, and the like are used. Furthermore, it has a configuration that is easy to open and that the liquid contents can be easily absorbed or poured out.

  As a bag provided with such a structure, the bag-like container which incorporated the straw part in the bag-like container is known widely (for example, refer patent document 1). However, in this bag-like container, the straw part is contained in the bag-like container, but the upper part to be the mouth of the straw part protrudes from the bag-like container and is exposed. Although a cap is attached to this projecting part, there is a risk that dust may stick to the projecting part during transportation, storage, or over-the-counter sales, or it may be covered with a cap. There is a problem that the outer periphery of the straw portion is not easily sanitized.

  On the other hand, a straw-like container having a straw holding part formed in the upper part is built in the straw holding part in a state where the straw is bent halfway, and when drinking, the bag-like container is torn and the straw holding part is opened. There is known a straw-containing beverage bag-like container having a configuration in which a straw in a more bent state is manually pinched and the open end of the straw is drawn out to suck and drink the liquid content (see, for example, Patent Document 2). The straw-containing beverage bag-like container of Patent Document 2 has a straw incorporated in the bag-like container, so that external dust can be prevented from adhering and touching with human hands can be prevented. Sanitation is better than the container. However, the bag-like container for a beverage containing a straw of Patent Document 2 has a problem that it is difficult to take out the straw since the straw is contained in a bent state. Furthermore, since the straw is wet with the liquid content, there is a problem that the hand becomes dirty.

  On the other hand, a bag-like beverage container is known in which a straw-like beverage container is provided with a narrow vertically extending neck at the top and a bag-like beverage container having a gusset at the bottom (for example, Patent Document 3) reference). In the bag-like beverage container of Patent Document 3, the upper part of the straw is located in the neck, and the holder is provided between the neck and the gusset to hold the straw, and the bag is torn at the position of the holder and the neck It removes and sucks from the exposed straw. Therefore, the mouth of the straw is covered with the neck, which is convenient because it is hygienic and there is no need to withdraw the straw. However, since the straw connects the gusset with the neck, the liquid content contained in the gusset may leak into the neck due to vibration or external force applied during transportation, or handling in distribution or sales, etc. There is. Furthermore, the liquid content may leak into the neck when vibration or external force is applied to the bag-like container, since the straw is only in intimate contact with the bag-like container at the holding part of the neck and not joined. As a result, when the bag-like container is torn at the position of the holding portion, the liquid content leaked into the neck may be scattered to contaminate the surroundings or soil the clothes.

JP 11-152152 A JP-A-8-337255 Japanese Patent Application Laid-Open No. 2002-68311

  Therefore, the present invention has been made to solve the above-mentioned problems, and the purpose of the present invention is to attach dust to a part of a spout or to touch a human hand during transportation, storage, or over-the-counter sales. It is an object of the present invention to provide a spout and a spouted pouch used for a spouted pouch which can be prevented from leaking and which does not leak liquid contents when opened.

  The present invention according to claim 1 is a spout for use in a spouted pouch which is joined to a pouch body so as to allow the contents to be poured out and is housed and sealed in the pouch body, the spout being a spout An outer pipe having an opening on one side and a closed end on the other side, and an inner pipe inserted into the outer pipe, the outer pipe of the spout having an outer peripheral surface on one side The joint portion joined to the pouch body and the peripheral wall between the joint portion and the closing portion are provided with an outlet portion, and the inner pipe of the spout has an opening on one side as a spout, the other The spout according to the present invention is characterized in that the opening on the side of the second is an inlet, and the inner pipe is telescopically inserted into the outer pipe.

  According to a second aspect of the present invention, in the spout according to the first aspect, the outer pipe of the spout includes a first locking portion on one side and a second locking portion on the other side. The inner pipe of the spout is characterized in that an outer peripheral surface on the side of the introduction port is provided with an engaging portion which engages with the first locking portion and the second locking portion. .

  According to a third aspect of the present invention, in the spout according to the first or second aspect, when the inlet of the inner pipe abuts on or approaches the closed part of the outer pipe, the closed part is the spout. It is characterized by having a convex part engaged with the inner skin of the above-mentioned inner pipe.

  The present invention according to claim 4 is divided into a spout having an opening on one side for pouring out the contents, a containing portion for containing the contents, and a spout covering for covering one side of the spout. A pouch body having a partition, the spout being joined so as to allow the contents to be poured out to the partition of the pouch body, and a pouch with a spout housed and sealed in the pouch body The spout includes an outer pipe having an opening on one side and a closed end on the other side, and an inner pipe inserted into the outer pipe, and the outer pipe has one side. The outer peripheral surface is provided with a joint portion joined to the partition portion of the pouch body, and a peripheral wall between the joint portion and the closed portion is provided with an outlet portion, and the inner pipe has an opening on one side And the opening on the other side is the inlet, and the inner pipe is A spouted pouch, characterized by being fitted telescopically into the tube.

  According to a fifth aspect of the present invention, in the pouch with a spout according to the fourth aspect, a tear-off line for opening is provided along the partition portion on the side of the spout coating portion of the pouch body. It is

  According to a sixth aspect of the present invention, in the spouted pouch according to the fourth or fifth aspect, the outer tube of the spout has a first locking portion on one side and a second portion on the other side. And a locking portion, and the inner pipe of the spout includes an engaging portion engaged with the first locking portion and the second locking portion on an outer peripheral surface of the introduction port. It is

  According to a seventh aspect of the present invention, in the pouch with a spout according to any one of the fourth to sixth aspects, the inlet of the inner pipe abuts on the closed portion of the outer pipe of the spout or When it abuts, the closed part is provided with a convex part engaged with the inner skin of the inner pipe.

  The spout and the spouted pouch used for the spouted pouch of the present invention prevent dust from adhering to the spout and touching the human hand during transportation, storage, or over-the-counter sales. It is possible that there is no leakage of the liquid contents at the time of opening.

It is a half section view of a spout used for a pouch with a spout concerning the present invention. The outer tube of the spout used for the pouch with a spout which concerns on this invention is shown, (A) is a perspective view, (B) is sectional drawing of the outer pipe in an AA, (C) is an outer pipe in an BB line. FIG. The inner tube of the spout used for the pouch with a spout concerning this invention is shown, (a) is a perspective view, (b) is a sectional view of the inner tube in the C-C line, (c) is the inner tube in the D-D line. FIG. It is an explanatory view explaining how to use a spout used for a pouch with a spout concerning the present invention. 1 shows an embodiment of a spouted pouch according to the present invention, wherein (a) is a partially cutaway perspective view, (b) is a sectional view showing a laminated structure of a pouch body of a spouted pouch, (c) is a spouted It is a perspective view showing other embodiments of a pouch. It is an explanatory view explaining how to use a pouch with a spout concerning the present invention.

The above-described present invention will be described in detail below using the drawings and the like.
FIG. 1 is a half sectional view of a spout used in the spout pouch according to the present invention, FIG. 2 shows an outer tube of the spout used in the spout pouch according to the present invention, (a) is a perspective view, and (b) is an A-. A cross-sectional view of the outer tube at line A, (C) is a cross-sectional view of the outer tube at B-B, FIG. 3 shows an inner tube of the spout used for the spouted pouch according to the present invention, (A) is a perspective view, (R) is a cross-sectional view of the inner pipe at line C-C, (C) is a cross-sectional view of the inner pipe at line D-D, and FIG. 4 is an explanation of how to use the spout used in the spouted pouch according to the present invention. FIG. 5 shows an embodiment of the spouted pouch according to the present invention, wherein (a) is a partially cutaway perspective view, and (b) is a cross sectional view showing a laminated structure of the pouch body of the spouted pouch, C) is a perspective view showing another embodiment of the spouted pouch; 6 is an explanatory view for explaining how to use the spouted pouch according to the present invention, in which 1 is a spout, 10 is an outer tube, 11 is an opening, 12 is a closed portion, 13 is a joint, and 14 is an outer portion. The cylinder part, 15 is an outlet part, 16 is a first locking part, 17 is a second locking part, 18 is a convex part, 20 is an inner pipe, 21 is a spout, 22 is a step part, 23 is an inner cylindrical part 24 is an inlet, 25 is an engaging portion, 3 and 3 'are spouted pouches, 30 is a pouch body, 31 is a body member, 32 is a bottom member, 33 is a heat sealing portion, 34 is a partition portion, 35 is The housing portion 36, 36 'is a spout coating portion, 36a is a cut piece, 37 is a tearing line for opening, 38 is a notch, 40 is a laminate, 41 is an outer layer, 42 is an intermediate layer, and 43 is an inner layer.

  FIG. 1 is a half sectional view of the spout 1 used for the spouted pouch according to the present invention, where the right side is a front view of the spout 1 and the left side is a sectional view. As shown in FIG. 1, the spout 1 has an outer tube 10 whose one side (upper side) is an opening 11 (see FIG. 2) and the other side (lower side) is a closed portion 12, and an outer tube 10 The inner pipe 20 is telescopically inserted into the outer pipe 10.

  As shown in FIG. 2, the outer tube 10 of the spout 1 has an opening 11 at the upper side and a closed portion 12 at the lower side. The joint portion 13 joined to the pouch body 30 (see FIG. 5) is provided on the outer peripheral surface on the opening 11 side, the outer cylindrical portion 14 is continuously provided below the joint 13 and the lower end of the outer cylindrical portion 14 is a closed portion It is assumed to be twelve. An outlet port 15 is provided on the peripheral wall between the joint portion 13 and the closed portion 12 at the lower end of the outer cylinder portion 14. The outer shape of the joint portion 13 is generally wedge-shaped in a plan view, and the central portion is hollow and communicates with the inner wall of the outer cylinder portion 14. As shown in FIG. 2A, the joint 13 gradually decreases in thickness from the center to both side edges. By doing so, the bonding portion 13 is held between the two body members 31 formed of the laminate 40 (see FIG. 5) constituting the pouch body 30, for example, when heat fusion is performed by heat sealing and bonding is performed Since the joint 13 is closely attached to the pouch body 30, there is no risk of liquid leakage, which is preferable.

  The outflow port portion 15 of the outer tube 10 is formed in a vertically long rectangular shape that cuts off the peripheral wall in the vertical direction of the outer cylinder portion 14. The shape of the outlet portion 15 is not particularly limited, and may be, for example, an elliptical shape which is vertically long in the vertical direction. Moreover, although the outflow port part 15 is provided in a pair in the surrounding wall, it is not limited. It is preferable to provide a pair at opposing positions of the peripheral wall, because the outflow of the liquid content becomes smooth. The outer cylinder portion 14 of the outer tube 10 is provided with a first locking portion 16 in a portion connected to the joint portion 13 on one side. The first locking portion 16 is formed in a rectangular shape in which the peripheral wall of the outer cylinder portion 14 is cut out in a horizontally long manner. On the other side, a rectangular second locking portion 17 is formed adjacent to the blocking portion 12 so as to cut out the circumferential wall of the outer cylindrical portion 14 in the horizontal direction. It is preferable that a pair of the first locking portion 16 and the second locking portion 17 be formed at opposite positions of the outer cylindrical portion 14 as shown in FIG. Further, on the surface of the closed portion 12 on the side of the joint portion 13, a convex portion 18 is provided as an annular convex portion that protrudes upward.

  The inner pipe 20 of the spout 1 has a cylindrical shape with an opening at the top and bottom as shown in FIG. 3, and a cylindrical inner cylindrical portion 23 elongated in the vertical direction and a step 22 above the inner cylindrical portion 23. A mouth 21 having a diameter slightly larger than the diameter of the inner cylindrical portion 23 is extended. That is, the opening on one side (upper side) of the inner pipe 20 is the outlet 21, and the opening on the other side (lower side) is the inlet 24. A convex engaging portion 25 is provided on the outer peripheral surface of the inner cylindrical portion 23 on the side of the inlet 24. The engaging portions 25 are formed in a pair at opposing positions of the inner cylindrical portion 23. The engaging portion 25 is engaged with the first locking portion 16 and the second locking portion 17 of the outer tube 10, and the inner tube 20 is stably supported by the outer tube 10, so it is better to provide a pair preferable.

  When the inner pipe 20 is inserted into the outer pipe 10, the setup is completed and the spout 1 in the state shown in FIG. 1 is completed. In the state where the setup is completed, the length in the vertical direction shown in FIG. When the setup is completed, the lower surface of the step 22 of the inner tube 20 abuts on the upper surface of the joint 13 of the outer tube 10. Furthermore, the inlet 24 at the lower end of the inner cylindrical portion 23 abuts on the upper surface of the closed portion 12, and the inner peripheral surface of the lower end of the inner cylindrical portion 23 contacts the outer peripheral surface of the annular convex portion 18 of the closed portion 12 It becomes a state. Then, the engagement portion 25 of the inner tube 20 engages with the second locking portion 17 of the outer tube 10 to maintain the liquid tight state, and the liquid content in the pouch flows into the inner tube 20. Is suppressed. When the inlet 24 of the inner tube 20 abuts or approaches the closed portion 12 of the outer tube 10, the closed portion 12 includes the annular convex portion 18, so the outer peripheral surface of the convex portion 18 and the inner pipe 20 It engages with the inner circumferential surface and is kept fluid tight.

Next, the action of the spout 1 will be described with reference to FIG.
As shown in FIG. 4, the inner pipe 20 is inserted into the outer pipe 10 and set up before use. In this state, the inlet 24 of the inner pipe 20 is liquid-tight at the closed portion 12 of the outer pipe 10, and the liquid content is prevented from flowing into the inner pipe 20. In use, when the spout 21 of the inner pipe 20 is pulled up, the engaging portion 25 of the inner pipe 20 is disengaged from the second locking portion 17 of the outer pipe 10, and the outer peripheral surface of the inner pipe 20 is the inner peripheral surface of the outer pipe 10. While sliding, the outlet port 15 of the outer pipe 10 and the inlet 24 of the inner pipe 20 communicate with each other. When the inner pipe 20 is further pulled up, the engagement portion 25 of the inner pipe 20 engages with the first locking portion 16 of the outer pipe 10, and the lifting of the inner pipe 20 is stopped. It is fixed. When sucked up from the spout 21 of the inner pipe 20, the liquid contents can flow out through the outlet 15 of the outer pipe 10 and the inlet 24 of the inner pipe 20 and can be consumed. The spout 1 of the present invention is in a state in which the inner pipe 20 is inserted into the outer pipe 10 and set up before use, and can be stored in a pouch in a space-saving manner for compactness. Since the inner pipe 20 can be easily stretched since it is inserted in a telescopic manner at 10, it is possible to easily suck and drink the liquid contents.

  The spout 1 is formed as a molded product by an injection molding method in which a resin is injected into a molding die and formed. The resin used for the spout 1 is a resin that is heat-sealed to each other by heat sealing with the resin of the inner layer 43 (see FIG. 5) of the laminate 40 constituting the pouch body 30 described later. Density polyethylene, high density polyethylene, linear (linear) low density polyethylene, polypropylene, ethylene-propylene copolymer may be mentioned. In the case of retort sterilization, polypropylene and ethylene-propylene copolymer are preferable.

  FIG. 5 shows an embodiment of the spouted pouch 3 according to the present invention, wherein (a) is a partially cutaway perspective view, and (b) is a sectional view showing the laminated structure of the pouch body 30 of the spouted pouch 3; (Iii) is a perspective view showing a spouted pouch 3 'of another embodiment. As shown in FIG. 5A, the spouted pouch 3 of the present invention includes a spout 1 for pouring out contents, a spout covering portion 36 for covering one side of a containing portion 35 for containing contents and the spout 1. And the spout 1 is housed and sealed in the pouch body 30 and the joint 13 of the spout 1 pours the contents into the partition 34 of the pouch body 30. It is connected in an accessible manner.

  The spout 21 of the inner tube 20 of the spout 1 is covered with the spout covering portion 36 of the pouch body 30, and the outer cylindrical portion 14 of the outer tube 10 and the inlet 24 side of the inner cylindrical portion 23 of the inner tube 20 are accommodated in the accommodating portion 35 It is done. In addition, the spout 1 is as having demonstrated in FIG. 1 thru | or FIG. 3, it attaches | subjects a same sign and abbreviate | omits description.

  As shown in FIG. 5 (b), the pouch body 30 uses a laminate 40 having an outer layer 41 and an intermediate layer 42 on the surface, and an inner layer 43 made of a heat fusible resin on the inner surface. Then, for example, as in the self-supporting bag shown in FIG. 5A, the body 31 and the bottom 32 are formed of two stacked bodies 40, and the inner layers 43 of the body 31 are arranged opposite to each other. It is inserted between the mountain members 31 so that the 32 inner layers 43 are on the outside, and the peripheral edge is heat-sealed by the heat-sealing portion 33. The joint portion 13 of the spout 1 is held between the body member 31 and the inner layer 43 of the body member 31 on the side closer to the heat fusion portion 33 in the upper portion between the heat fusion portion 33 in the upper portion and the heat fusion portion 33 in the lower portion. And heat fusion to form the partition 34 and to which the spout 1 is attached. In the partition portion 34, the inner layers 43 of the body members 31 on the front and back sides are heat-sealed except for the portion joined to the joint portion 13.

  In the pouch body 30, the storage portion 35 and the spout coating portion 36 are partitioned by the partition portion 34, and the introduction port 24 of the spout 1 is liquid-tight at the blocking portion 12, so the storage portion 35 and the spout coating portion 36 are separated. It is in a state of being Then, since the spout 1 is sealed in the pouch body 30, dust adheres to the spout 21 of the spout 1 during transportation, storage or over-the-counter sales when the product is filled with the product. Because the spout covering portion 36 is excellent in hygiene because it can be prevented from touching or touching with human hands, and the spout covering portion 36 can maintain the separated state from the containing portion 35, the liquid content infiltrates into the spout covering portion 36 There is no leakage of the liquid contents at the time of opening. Moreover, although the example of the self-supporting bag which the pouch main body 30 consists of the trunk | drum 31 and the bottom member 32 was shown in FIG. 5, it is not limited to this, It takes the form of flat bags, such as a gusset bag It can also be done.

  The laminate 40 constituting the pouch body 30 includes a dry lamination method in which an outer layer 41, an intermediate layer 42, and an inner layer 43 are laminated using, for example, an adhesive for dry lamination such as urethane, hot melt extrusion of polyolefin resin, etc. It can laminate by the extrusion lamination method of laminating. In the case of retort sterilization, dry lamination is preferred. Since the outer layer 41 is a basic material constituting the pouch body 30, a synthetic resin film having excellent mechanical, physical, chemical, etc. properties can be used, and polypropylene, polyethylene terephthalate, nylon, etc. A biaxially stretched film or the like can be used. Alternatively, a film obtained by vapor-depositing an inorganic substance such as aluminum or aluminum oxide, silicon oxide, indium oxide, tin oxide or zirconium oxide on the above-mentioned film can be used. Usually, the outer layer 41 is often printed, and a printability is required, so a biaxially stretched film is preferable. The thickness of the film constituting the outer layer may be any thickness as long as the strength, rigidity and the like as the basic material can be held to the minimum necessary, and it may be determined in consideration of the cost and the like. It is about 9 to 50 μm.

  The intermediate layer 42 is provided when rigidity, light shielding property, gas barrier property and the like are required according to packaging conditions, transport conditions, and protective function conditions of contents, and the film used for the outer layer 41 and the vapor deposition layer are The film provided, metal foils, such as aluminum and iron, etc. can be used. Also, one or more of these films may be combined and laminated. Also, the intermediate layer 42 can be omitted depending on the required quality.

As the inner layer 43, a heat fusible resin is used, and in the case of retort sterilization, unstretched polypropylene, unstretched polypropylene obtained by blending an elastomer component with polypropylene, and high density polyethylene (HDPE) can be used. . In the case of boiling treatment, low density polyethylene (LDPE), medium density polyethylene (MDPE), linear low density polyethylene (LLDPE), ethylene-vinyl acetate copolymer (EVA), ionomer, ethylene-acrylic acid copolymer ( Unstretched films such as EAA), ethylene-ethyl acrylate copolymer, ethylene-methacrylic acid copolymer are used. The specific example of 2-3 of the laminated body 40 which comprises the pouch main body 30 is shown.
PET / DL / AL / DL / ON / DL / CPP or LLDPE
PET / DL / ON / DL / AL / DL / CPP or LLDPE
VMPET / DL / ON / DL / CPP or LLDPE
PET / DL / VMON / DL / CPP or LLDPE
VMPET / DL / CPP or LLDPE
VMON / DL / CPP or LLDPE
PET: Biaxially oriented polyethylene terephthalate film ON: Biaxially oriented nylon film AL: Aluminum foil VMPET: PET deposited with silicon oxide or aluminum oxide
VMON: ON with silicon oxide or aluminum oxide deposited
CPP: Unstretched polypropylene film LLDPE: Linear low density polyethylene DL: Adhesive (dry lamination method)

  Further, the spouted pouch 3 of the present invention is provided with a tear-off line 37 for opening along the upper edge of the partition 34 on the side of the spout covering portion 36 of the pouch body 30 as shown in FIG. The V-shaped notch 38 is provided in the heat sealing | fusion part 33 of the both ends of the tearing line 37 from the outer edge inside. Such a configuration is preferable because the spouted pouch 3 can be easily opened from the notch 38 as a starting point from the notch 38 and the spout 21 can be exposed.

  As a method for providing the tear-off line 37 for opening, for example, a hot melt perforation method in which a film is melted and perforated using a needle punch method or an embossing roll method for pressing a heated heat needle, physical using a knife, a cutter or the like Methods such as selective drilling method, laser beam processing, corona discharge, plasma discharge and the like.

  The shape of the incision of the tear-off line 37 for opening may be any shape such as a linear shape, a curved shape, a perforated line shape, a broken line shape, etc. The number may be one or more. In addition, the structure of the incision may be either a through hole, a half cut state, or a mixed state thereof. In the case of half cutting, for example, it can be engraved by a pulse oscillation type laser, and by selecting the wavelength of the pulse oscillation type laser, the tear-off line 37 for opening can be engraved only in the outer layer 41. it can.

  FIG. 5C is a perspective view showing another embodiment of the spouted pouch, which is the same as FIG. 5A except that the shape of the spout covering portion 36 is different. In the spout covering portion 36 ', the spout covering pouch 3' with a spout covers the periphery of the mouth 21 with a heat sealing portion and cuts out both sides of the upper portion of the partition portion 34, as shown in FIG. The left and right lengths of 'are shorter than the left and right lengths of the housing portion 35. Since the length of the tearing line 37 for opening is short, the pouch with spout 3 'is easy to open.

  FIG. 6 is an explanatory view for explaining the method of using the spouted pouch 3 according to the present invention, and the method of using the spouted pouch 3 will be described with reference to FIG. As shown in FIG. 6A, the spouted pouch 3 filled with the liquid content first tears and opens the trunk member 31 along the tear-off line 37 from the notch 38. And if the cut-out piece 36a cut off is removed, as shown in FIG. 5 (b), the opening 21 of the inner pipe 20 of the spout 1 and the junction 13 of the outer pipe 10 will be exposed. Then, when the spout 21 of the inner pipe 20 is pulled up, the engaging portion 25 of the inner pipe 20 is disengaged from the second locking portion 17 of the outer pipe 10 and the outer peripheral surface of the inner pipe 20 slides on the inner peripheral surface of the outer pipe 10 While moving up, the outlet port 15 of the outer tube 10 and the inlet 24 of the inner tube 20 are in communication. When the inner pipe 20 is further pulled up, the engagement portion 25 of the inner pipe 20 engages with the first locking portion 16 of the outer pipe 10, and the lifting of the inner pipe 20 is stopped. It is fixed and it will be in the state shown in FIG. 6 (ha). Thereafter, when the intake is taken from the spout 21 of the inner pipe 20, the liquid contents flow out as the flow path of the inner cylindrical portion 23 through the outlet port 15 of the outer pipe 10 and the inlet 24 of the inner pipe 20 and drink. Can. The spout 1 is convenient because the inner pipe 20 is inserted into the outer pipe 10 so as to be able to expand and contract easily and can be easily drawn for drinking.

  The spout 1 and the spouted pouch 3 of the present invention can be subjected to retort sterilization and can be used for storing contents such as nutrient drinks, soups, coffee drinks, jelly-like beverages, and in particular, to applications that can be retort sterilized.

  The embodiment described so far is a representative example of the spout and the spouted pouch according to the present invention, and the spout and the spouted pouch according to the present invention are limited thereto. However, all items within the scope of the present invention are included in the present invention.

Reference Signs List 1 spout 10 outer tube 11 opening 12 closed portion 13 joint 14 outer cylinder 15 outlet portion 16 first locking portion 17 second locking portion 18 protruding portion 20 inner tube 21 outlet 22 stepped portion 23 inner tube portion Reference Signs List 24 introduction port 25 engagement portion 3, 3 pouch with spout 30 pouch body 31 body member 32 bottom member 33 heat fusion portion 34 partition portion 35 accommodation portion 36, 36 'spout coating portion 36a cut piece 37 cut line for opening 38 notch 40 laminated body 41 outer layer 42 middle layer 43 inner layer

Claims (7)

A spout used for a spouted pouch which is joined to a pouch body so that the contents can be poured out and is housed and sealed in the pouch body,
The spout includes an outer pipe having an opening on one side and a closed end on the other side, and an inner pipe inserted into the outer pipe.
The outer tube of the spout has a joint portion joined to the pouch body on an outer peripheral surface on one side, and an outlet portion in a peripheral wall between the joint portion and the closed portion,
The inner pipe of the spout has an opening on one side as a spout and an opening on the other side as an inlet.
A spout characterized in that the inner pipe is telescopically inserted into the outer pipe. The outer tube of the spout has a first locking portion on one side and a second locking portion on the other side,
The inner pipe of the spout is provided with an engaging portion engaged with the first locking portion and the second locking portion on an outer peripheral surface on the side of the introduction port. Spout described. When the introduction port of the inner pipe abuts or approaches the closed portion of the outer pipe, the closed portion includes a convex portion engaged with the inner peripheral surface of the inner pipe. Or the spout according to claim 2. A spout with an opening on one side and pouring out the contents,
A pouch body comprising a storage portion for storing contents and a partition portion partitioned into a spout coating portion covering one side of the spout;
Equipped with
The spout is a spouted pouch which is joined to the partition portion of the pouch body so that the spout can pour out the contents and is housed and sealed in the pouch body,
The spout includes an outer pipe having an opening on one side and a closed end on the other side, and an inner pipe inserted into the outer pipe.
The outer tube includes a joint portion joined to the partition portion of the pouch body on an outer peripheral surface on one side, and an outlet portion in a peripheral wall between the joint portion and the closed portion.
The inner pipe has an opening on one side as a spout and an opening on the other side as an inlet.
A spouted pouch characterized in that the inner pipe is telescopically inserted into the outer pipe. The spout pouch according to claim 4, wherein a tearing line for opening is provided along the partition portion on the side of the spout coating portion of the pouch body. The outer tube of the spout has a first locking portion on one side and a second locking portion on the other side,
The said inner pipe | tube of the said spout equips the outer peripheral surface of the said inlet with the engaging part engaged with the said 1st latching | locking part and the said 2nd latching | locking part, It is characterized by the above-mentioned. Spout with pouch described in 5.   When the introduction port of the inner pipe abuts on or approaches the closed portion of the outer pipe of the spout, the closed portion includes a convex portion engaged with the inner circumferential surface of the inner pipe. A pouch with a spout according to any one of claims 4 to 6.

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