JPH1095444A - Pour port with leg for pouch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deformation at an injection molding, form a liquid-tightness by surely holding a periphery, and prevent a clogged state from being generated when contents are sucked. SOLUTION: A bonding base (b) provided under a slender ship-shaped flange (a) is formed into a shuttle shape, in the bottom view, so that two sides of a pouch can be easily bonded so as to be kept in a liquid sealed state, and four extended plates 5 extending downward from the base (b) are provided so as to be connected in a cross-shaped manner by ribs provided so as to be opposed to the plates, respectively, and the ribs 8 in a cross shape are extended toward a bottom, and the opposed longitudinal side surfaces of the flange (a) form parallel guide surfaces and a projection 2 extending toward a pour port cylinder (c) is provided at each end of the flange so as to have the same height as the thickness of the base of the flange, and the cylinder (c) has a larger diameter on the side of the flange and a smaller diameter beyond a center ring 11 and a thread 13 for a cover is formed on the smaller diameter 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spout with a lid which is sandwiched between two sides of a pouch for storing a liquid.

[0002]

2. Description of the Related Art In a bag-in-box known so far, a spout is attached to an inner pouch.
This spout is such that the spout cylinder projects outward from the through hole provided in the pouch, and the flange formed at the lower end of the spout cylinder abuts against the inner surface of the hole edge, and this is used as an adhesive,
It was adhered to the inner surface of the pouch by heat, ultrasonic waves, etc. Further, various kinds of pouches according to the prior art, for example, flat bags, self-standing bags (stand type), gusset pouches, etc., contain juice and the like, and are provided with a spout having a suction port at a peripheral portion of the pouch. In the pouch with a spout, the spout is attached to the periphery of the pouch, but since there is no extension reaching the inside of the pouch, when the user sucks the contents, the pouch is closed and sucked. Could not be done. Since the flange provided at the lower part of the spout tube attached to the pouch or the like such as the bag-in-box described above is bonded to the hole edge on the inner surface of the pouch, it is not necessary to attach it to the edge of the pouch or the like. Nothing was considered.

[0003]

A spout that can be attached to a pouch or the like, particularly at the periphery, to prevent deformation during injection molding of the spout body and to securely clamp the pouch or the like to the periphery. To provide a liquid-tight property (hereinafter referred to as liquid-tightness) and a structure of a pouch spout that does not cause a closed state in the pouch when the contents are sucked.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has been made so that a spout with a foot for a pouch can be attached particularly to a peripheral portion of a pouch or the like. On the other hand, an adhesive base attached to the inside of the pouch main body on one side, and a spout main body provided with a spout cylinder on the outside of the pouch when the pouch is mounted on the other side are integrally formed of synthetic resin. In the spout, the adhesive base provided below the elongated boat-shaped flange is located between two sides of the pouch, and the two sides are easily adhered to each other, so that the base is shuttle-shaped in a bottom view so as to maintain liquid tightness. Providing four extension plates hanging down below the shuttle-shaped adhesive base, connecting each of the extension plates in a cross shape with a rib toward the facing extension plate, and connecting the cross ribs. Pouch In the spout with a foot for a pouch, the elongated boat-shaped flange portion has a guide surface whose both side surfaces in the length direction are parallel to each other, and the end portion in the length direction. A protruding portion toward the spout cylinder portion side is formed at the same height as the thick portion of the base portion of the flange portion, and the spout tube portion has a long boat-shaped flange portion side with a large diameter and a central portion. Make the tip of the ring smaller than
A screw thread for the lid is formed in this small diameter portion, and the screw can be screwed to the spout cylinder, and the lid is injection-molded with a synthetic resin.
A groove is formed on the outer surface to be slightly rigid than the spout body or slightly softer than the spout body, and to be easily picked when the screw is attached or detached.

[0005]

FIG. 1 is a perspective view of an embodiment of a spout with a foot for a pouch according to the present invention, and FIG. 2 is a front view (2) of FIG.
-1), a bottom view (2-2), and FIG. 3 are front views (3-1) of a state in which the footed spout of the present invention is mounted on a pouch.
(3-1) It is sectional drawing (3-2) of XX of a figure. The present invention provides a pouch C of a stand type, a gusset type, or the like, in which a juice or the like is stored and a user can attach a spout to the spout to suck the contents, and a peripheral portion of a flat pouch C, etc. A pouring spout with a lid sandwiched between two sides with respect to the portion where the corner is cut, and four extension plates 5 hanging down below the adhesive base b of the spout main body A are provided; Each of the extension plates 5 was connected in a cross shape by a rib 9 facing the extension plate 5 facing the extension plate 5, and the linked cross ribs (hereinafter referred to as extension cross ribs 8) were stored in the pouch C. It is a pouch foot spout extended to the vicinity of the bottom of the pouch C in the state. Outlet body A provided with the extended cross rib 8
Is a member separate from the lid B and is injection-molded with a resin such as polyethylene or polypropylene. The spout body has a shape suitable for being easily attached to the pouch C. In particular, due to the presence of the extended cross ribs 8 provided before the adhesive base b, the pouch C is Since it is not blocked, it has the effect that it can be sucked to the end and it is extremely easy to drink.

[0006] The material and shape of the pouch C for mounting the pouch spout of the present invention are designed according to the type and capacity of the contents. The pouch C to which the spout with a foot for a pouch of the present invention is applied is a type in which a user attaches a spout to a spout and sucks the same, and the amount of contents to be stored is 100 to 500 g, which is most often planned. The content is 200-300 grams. As the shape of the pouch C, the above-mentioned stand type and gusset type are often used, and the materials thereof are materials such as paper, plastic films, metal foils, and other materials for the purpose of lowering physical properties. Are applied, processed by vapor deposition or the like, or those subjected to processing are used, and a single material of these or a material obtained by laminating them is used.

The basic material composition of the pouch C is often composed of a base material, a barrier material for protecting the contents, and an inner surface layer having heat sealability. The substrate is selected from materials having printability, strength, heat resistance, etc., and is preferably a stretched film formed by forming a resin such as various thin papers, polypropylene, polyester, and polyamide, and as a barrier material. A metal foil such as aluminum or a film obtained by applying a moisture-proof coating such as vinylidene chloride to the above various films, or a metal film or an oxide such as silicon or aluminum directly to a base film without using a separate film as a barrier material. May be used. In addition, as the heat seal material, a material that does not impair the taste of the contents or the like and that exhibits the necessary strength as the pouch C is selected. Examples of the heat sealing material include low-density polyethylene, linear low-density polyethylene, polyolefin polymerized using a metallocene catalyst, ionomer, ethylene-vinyl acetate copolymer, and the like. However, the material constituting the heat seal layer is a heat seal for assembling the pouch C, and the adhesive surface 4 of the adhesive base b of the spout body A.
It is necessary to be a material that can be thermally bonded to the spout, and it is necessary to confirm mutual adhesiveness when selecting the material of the spout body A.

As described above, the present invention relates to a pouch C of a stand type, a gusset type or the like, or a peripheral portion 1 of a flat pouch C or the like.
8 or a spout with a lid that is sandwiched between two sides with respect to a portion where a corner is cut. The spout of the present invention comprises a spout body A and a lid B, both of which can be molded by injection molding a thermoplastic resin. The spout body A is composed of an elongated boat-shaped flange portion a, an adhesive base b, and a spout tube portion c. The elongated boat-shaped flange portion a has a boat shape in a plan view, and the both side surfaces 1 form a guide surface when being conveyed to an adhesive portion such as a pouch C, and have a longitudinal end portion. Is formed with an upwardly projecting portion 2.

The adhesive base b is located between the two sides with respect to the peripheral portion 18 inside the pouch C or the like, and as shown in FIG. It has a shuttle shape, and is formed with adhesive surfaces 4 on both sides of an adhesive base b below the outlet cylinder portion c.
Both ends are integrated as adhesive portions 6 at both ends of an elongated boat-shaped flange portion a.

[0010] The spout cylindrical portion c is located outside the pouch C or the like, and has a large-diameter portion 10 on the flange a side and a ring portion 11 at an intermediate portion.
And a small-diameter portion ahead of this, and a thread 13 for screwing the lid B is provided in the small-diameter portion. The base of the large-diameter portion 10 is integrated with the thick portion 14 of the elongated boat-shaped flange portion a, and the projecting portion 2 formed at the end of the thick portion and the elongated boat-shaped flange portion a.
A groove 15 is formed at right angles to the side surfaces 1 on both sides, the height of the top of the protruding portion 2 and the upper surface of the thick portion 14 are the same, and the large-diameter portion 10 It may have a columnar shape.

Formed by extending from the four extension plates 5 hanging down from the adhesive base b to the respective extension plates 5 facing each other by ribs, and extending the linked ribs downward. The extended cross rib 8 to be formed has a cross-shaped cross section, and its extended length is such that the tip of the extended cross rib 8 is close to the bottom of the pouch C when the contents are filled in the pouch to which the spout is mounted. Is desirable. Due to the presence of the cross ribs, when the user puts a mouth on the spout and sucks the contents, as shown in FIG. 3 (3-2), a void is formed in the pouch at the rib portion, and the spout is formed. The pouch can be prevented from being clogged at the time of suction. The cross ribs have advantages such as good moldability, easy inspection of foreign matter by visual inspection in inspection of the rib portion, and easy washing in a washing step before filling. Also, as shown in FIGS. 1 and 2, it is desirable that the four corners of the distal end portion 17 of the extended cross rib are formed in an arc shape so that the inner surface of the pouch C is not damaged by the distal end protrusion of the rib. The extended cross ribs 8 need not be formed parallel or perpendicular to both side surfaces of the boat-shaped flange portion a. In other words, the extension plate 5 provided at any position on the circumference of the adhesive base b can be used. Even so, if the ribs extending the facing extension plates 5 and the ribs are extended to form extended cross ribs, it is possible to prevent the pouch from being clogged when the contents are sucked. One of the objects of the present invention,
As long as the pouch can be prevented from being closed, the width of the four ribs of the extended cross rib does not need to be constant in the length direction of the extension, for example, continuously toward the tip thereof. The width may be reduced, or may be reduced stepwise, or may be partially cut out. Further, the cross section of the extension rib is desirably a cross (four ribs) as described above, and the shape of the three ribs may cause the angle between the ribs to be too wide to hinder the blockage prevention effect. If the shape is more than four, the moldability is deteriorated, and the blocking effect is not different from that of four ribs.

Since the top of the projecting portion 2 of the elongated boat-shaped flange portion a of the present invention and the upper surface of the thick portion 14 are the same, when the spout body A is transported, this surface and the large diameter portion 1
Since the large-diameter portion 10 can be sandwiched between the guide plate of the shooter and the two ring portions 11 from both sides, the conveyance becomes stable.

The lid B is screwed onto a thread 13 formed on the small diameter portion of the spout cylinder c of the spout body A, and has a groove formed on its peripheral surface so as to be easily picked. When the cover B is completely screwed, there is a slight gap between the end of the cover B and the ring 11 in the middle of the spout cylinder c. In this way, there is no risk of damaging a finger when the cover B is screwed on and off due to the ring portion 11 in the middle of the end of the cover B and the spout cylinder c.

To attach the spout body A to the pouch C,
The spout body A that has been conveyed and stopped by using the both side surfaces 1 in the elongated boat-shaped flange portion a of the spout body A as a guide.
On the other hand, for example, the pouch C is sent from below, and the shuttle-shaped adhesive base b protruding below the elongated boat-shaped flange portion a is inserted from two open sides of the edge portion 18 of the pouch C while opening. The two sides are brought into contact with the lower surface of the flange portion a.

The spout main body A and the lid B are formed separately, and are formed by injection molding of polyethylene, polypropylene or the like. The molding material of the spout body A is a material that can be thermally bonded to the inner surface of the pouch C.
It is desirable to select one that can obtain tightness when screwed into the spout body A. For example, low-density polyethylene can be used for the spout body A, and medium-density or high-density polyethylene or polypropylene resin can be used for the lid B. Since the low-density polyethylene has a lower rigidity than the medium-density polyethylene or the polypropylene, the screwing is performed by tightly tightening the screw by utilizing the difference in the degree of rigidity as in the combination of the materials. Can be easily done. Outlet body A
Even if the molding material used for the cover and the cover B is reversed, tight winding can be performed in the same manner as described above.

The inner surface of the peripheral portion 18 of the pouch C is aligned with the bonding surface 4 of the bonding base b of the spout body A, and a heating member is brought into contact with the outer sides of the pouch C to form a shuttle-shaped bonding base b.
Heat and adhere the pouch. This bonding may be bonding by ultrasonic waves or bonding by an adhesive other than the above-mentioned bonding, but in practice, thermal bonding can be suitably used.

[0017]

According to the spout with a foot for a pouch of the present invention, a shuttle-shaped adhesive base b is formed on the lower surface of an elongated boat-shaped flange portion a. When attaching this to the pouch C or the like, the shuttle-shaped adhesive base b can be inserted between the two sides of the edge 18 of the pouch, pressed and heated by a heating member from both sides, and easily bonded. Despite being attached to the peripheral portion 18, the liquid sealing property can be easily maintained between the adhesive base b and the pouch C by the extended cross rib 8 provided below the adhesive base b. When suctioning the contents from the suction port of the attached spout, the pouch C is not closed, so that the contents can be sucked to the end.

The spout body A is less likely to be deformed during injection molding by using the shuttle-shaped adhesive base b according to the present invention, despite the injection molding made of synthetic resin. When the peripheral portion 18 such as the pouch C is bonded to the bonding base b, the liquid-tightness is further improved.

Since the elongated boat-shaped flange portion a has side surfaces on both sides and the projections 2 are formed at both ends, reliable transport when the spout body A is attached to the pouch C or the like is ensured. And stable installation.

Also, by making the rigidity of the material between the lid B and the spout main body A slightly different, the screwing to the spout main body A becomes more tight, and the outer peripheral surface of the lid is formed. By providing the groove, the lid can be easily picked when the screw is screwed on and off during use.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a spout with a foot for a pouch according to the present invention.

FIG. 2 is a front view (2-1) of FIG.
2)

FIG. 3 is a front view (3-1) and a sectional view taken along line XX of FIG.
-2)

[Explanation of symbols]

 Reference Signs List A Outlet main body B Lid C Pouch a Slender boat-shaped flange b Adhesive base c Outlet cylinder 1 Side edges 2 Projecting portion 4 Adhesive surface 5 Extension plate 6 Adhesive portion 8 Extended cross rib 10 Large diameter portion 11 Ring Part 12 Small diameter part 13 Screw 14 Thick part 15 Groove 16 Opening 17 Tip of extended cross rib 18 Edge of pouch 19 groove

Claims (4)

[Claims] An elongate boat-shaped flange portion is provided on one side thereof with an adhesive base attached to the inside of the pouch main body, and on the other side, a spout tube portion on the outside of the pouch when the pouch is mounted. In the spout in which the spout body is formed integrally with synthetic resin, the adhesive base provided below the elongated boat-shaped flange portion is located between the two sides of the pouch, and the two sides are easily bonded to each other so as to seal the liquid. It has a shuttle shape when viewed from the bottom so as to maintain the property, and four extension plates hanging down from the shuttle-shaped adhesive base are provided, and each of the extension plates is formed in a cross shape by a rib facing the extension plate facing the same. Characterized in that the crossed ribs are extended in the direction of the bottom of the pouch. 2. The elongated boat-shaped flange portion has a guide surface parallel to both side surfaces in the longitudinal direction, and a projecting portion facing the spout cylinder portion at the longitudinal end. The spout with a foot for a pouch according to claim 1, wherein the spout is formed at the same height as the thick portion of the base of the portion. 3. The spout tube portion has a slender boat-shaped flange portion with a large diameter, a tip portion smaller than a central ring portion, and a thread for a lid formed in the small diameter portion. 3. The pouch footed spout according to claim 1, wherein a lid can be screwed onto the pouch. 4. A lid screwed onto the thread of the spout cylinder is made of synthetic resin by injection molding, and is made slightly more rigid than the spout body or slightly more flexible than the spout body. The spout with a foot for a pouch according to any one of claims 1 to 3, wherein a groove is formed on the outer surface so as to be easily gripped when the screw is attached or detached.