JPH1095445A - 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: In the pour port with a leg for a pouch, 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 a cross-shaped rib 8 is releasably connected to the shuttle-shaped bonding base, both longitudinal sides of the flange (a) form parallel guide surfaces and a projection 2 is formed at each of the opposite ends of the flange, in the longitudinal direction, and the projections 2 are oriented toward a pour port cylinder (c) so as to have the same height as the base (b) of the flange, and a ring 11 is provided at a point midway in the cylinder (c) and the cylinder (c) has a larger diameter on the side of the flange and a smaller diameter beyond the ring and a tread 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 foot for a pouch, 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 makes the spout tube protrude outward from the through hole provided in the pouch, and a flange formed at the lower end of the spout tube abuts against the inner surface of the hole edge, and the adhesive, heat,
It was adhered to the inner surface of the pouch by ultrasonic waves or the like. Also, various types of pouches according to the prior art, for example, flat bags, self-standing bags, gusset pouches, etc., contain juice and the like, and a pouch with a spout provided with a spout having a suction port at an edge of the pouch. Although the spout is attached to the edge of the pouch, there is no extension reaching the inside of the pouch, so that the pouch may be closed by the user when sucking the contents, and the suction may not be performed. Was. In a spout mounted on a pouch or the like such as the bag-in-box described above, the flange provided at the lower end of the spout cylinder is adhered to a hole on the inner surface of the pouch. No consideration was given to mounting on the edge.

[0003]

SUMMARY OF THE INVENTION In view of the foregoing, the present invention has improved a pouch footed spout so that it can be attached to a pouch or the like, particularly at a peripheral portion thereof. What is needed is to prevent deformation during injection molding of the spout body and obtain liquid tightness (hereinafter referred to as liquid tight) by securely sandwiching the periphery of a pouch or the like, A technique relating to a structure of a spout that does not cause a blockage state in the pouch during suction is provided.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and has been made so that a spout with a foot for a pouch can be attached to a pouch or the like, particularly at a peripheral portion thereof. 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 on the other side with a spout cylinder outside the pouch when the pouch is mounted are integrally formed of synthetic resin. In the spout, the adhesive base provided below the elongated boat-shaped flange portion is located between two sides of the pouch so that the two sides can be easily adhered to each other so that the liquid sealing property can be maintained. A pouch foot spout having a cross-shaped rib detachably connected to the shuttle-shaped adhesive base, wherein the elongated boat-shaped flange has parallel side surfaces in its length direction. Guide surface At the same time, a protruding portion toward the spout cylinder portion is formed at the end in the length direction at the same height as the thick portion at the base of the flange portion, and a ring portion is provided in the middle of the spout cylinder portion. The elongated boat-shaped flange portion side has a large diameter, the tip of the center ring portion has a small diameter, a screw thread for a lid is formed on this small diameter portion, and the lid can be screwed to the spout cylinder portion, The lid is injection-molded with synthetic resin, slightly rigid than the spout body, or slightly more flexible than the spout body, and has a groove on the outer surface so that it can be easily picked when screwing in and out. Form.

[0005]

FIG. 1 is a perspective view (1-1), a sectional view of a connecting portion (1-2) of an embodiment of a spout with a foot for a pouch according to the present invention, and FIG. Front view (2-1) in a state where the outlet body, the cap and the extension cross rib are set,
FIGS. 3A and 3B are front views (3-1) and (3-1) of a state in which the footed spout of the present invention is mounted on a pouch.
It is sectional drawing of XX of a figure (3-2). The present invention relates to a pouch C of a type such as a stand type or a gusset type in which a juice or the like is stored and a user attaches a mouth to a spout to suck the contents.
Or a spout with a lid sandwiched between two sides with respect to the edge 18 of the flat pouch C or the like, in which the corner is cut,
The spout main body A, the connecting cross rib 8 and the lid B are composed of the spout main body A, the connecting cross rib 8 and the lid B, each of which is a separate body. It is molded. The outlet is
A spout body A having a shape suitable for being easily attached to the pouch C, and in particular, a cross rib 8 is connected below the adhesive base b of the spout body A. Thus, when the user sucks the contents, the pouch C is not blocked, and thus the effect of extremely easy drinking is exhibited.

The material shape of the pouch C for mounting the pouch spout of the present invention is designed according to the kind of the contents or the capacity. 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. Contents are 200-350 grams. As the shape of the pouch C, generally, the stand type and the gusset type are often used, and the material thereof is paper,
Materials such as plastic films and metal foils, and other materials applied to these materials for the purpose of improving their physical properties, processed by vapor deposition, etc. The used material is used.

The basic material of the pouch C is often composed of a base material, a barrier material for protecting the contents, and an inner surface material 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 separate film as a barrier material, and directly forming a simple metal or an oxide such as silicon or aluminum on a base film. Alternatively, a film or the like on which a film is deposited may be used. In addition, as the heat seal material, a material that does not impair the taste of the contents and has the necessary strength as the pouch C is selected. Examples 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 forming the heat seal layer is a heat seal for assembling the pouch C, and also needs to be a material that can be thermally bonded to the adhesive plate 4 of the spout body A. It is necessary to confirm mutual adhesiveness when selecting the material of A.

According to the present invention, as described above, the edge portion 1 of a pouch C or the like of a stand type, a gusset type or the like, or a flat pouch C or the like is used.
8. A spout with a lid that is sandwiched between two sides with respect to the cut portion of each corner. The spout main body A of the present invention includes an elongated boat-shaped flange, an adhesive base b, and a spout cylinder c. The slender boat-shaped flange a
It has a boat shape in a plan view, and both side surfaces 1 form a guide surface when it is conveyed to an adhesive portion 6 such as a pouch C, and an upwardly projecting portion 2 is provided at an end in a longitudinal direction. Are formed.

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 the adhesive surfaces 4 on both sides of the adhesive base b below the outlet cylinder c are connected to each other at their ends to form a mountain shape.

The spout cylindrical portion c is located outside the pouch C or the like, and has a large-diameter portion 10 on the side of the adhesive base b and a ring portion 11 at the intermediate portion.
And a small-diameter portion 12 ahead of this, and the small-diameter portion 12 has a thread 1 for screwing the lid B on and off.
3 are provided. The base of the large-diameter portion 10 is integrated with the thick portion 14 of the elongated boat-shaped flange, and the thick portion 14 and the protruding portion 2 formed at the end of the elongated boat-shaped flange. The groove 15 is perpendicular to the side surfaces 1 on both sides.
Are formed, and the height of the top of the protruding portion 2 and the upper surface of the thick portion 14 are the same.

Since the top of the projecting portion 2 and the upper surface of the thick portion 14 are the same, when the spout body A is transported, a guide of the shooter is provided between the surface and the ring portion 11 of the large diameter portion 10. Since the plate can be sandwiched between the large-diameter portions 10 from both sides, the conveyance is stable. Further, by making the large-diameter portion 10 into a prismatic shape, the attachment and detachment of the lid can be facilitated.

Further, in the present invention, the pouch C has a connecting part which can be fitted to the inner surface of the adhesive base b of the spout main body A separately from the spout main body. Injection molding of a connecting cross rib 8 consisting of a cross rib extended to a spout body A is performed. The connection between the inner surface of the adhesive base b and the connecting cross rib 8 is performed by, for example, a fitting concave portion 19 provided inside the adhesive base b and a fitting convex portion 20 provided on the connecting cross rib 8 as shown in FIG. Can be connected by fitting. The method of connecting the connecting cross rib 8 to the inside of the adhesive base b may be a method of screwing the inner surface of the extension tubular portion 3 to the connecting portion of the connecting cross rib 8 in addition to the above-mentioned concave and convex fitting. The method is not limited. The cross ribs have advantages such as good moldability, easy inspection of foreign matter and the like in inspection of the rib portion, and easy washing in a washing step before filling. FIG.
As shown in (2-1), the tip 17 of the connecting cross rib 8 is desirably curved so that the rib tip projection does not damage the inner surface of the pouch C when receiving vibration or impact. The connecting cross rib 8 does not need to be connected parallel or at right angles to both surfaces of the boat-shaped flange portion a, and can prevent the pouch from being clogged when the contents are sucked.
The angle of the rib at the time of connection is not limited as long as the pouch can be prevented from being clogged at the time of sucking the contents, which is one of the objects of the present invention. Also, the width of the four ribs of the connecting cross rib 8 does not need to be constant in the length direction of the extension, for example, it is continuously narrowed toward the tip or narrowed stepwise. Or a notch may be partially formed. Also, the cross section of the connecting rib is desirably a cross (four ribs) as described above, and in the case of a three rib shape, the angle between the ribs may be too wide, which may hinder the effect of preventing the pouch from closing. When five or more sheets are formed in a wild shape, the formability is deteriorated, and the effect of preventing the pouch from being closed is not different from that of four ribs.

The lid B is screwed onto a thread 13 formed on the small diameter portion 12 of the spout cylinder portion c of the spout body A, and a groove 21 is formed on its peripheral surface so as to be easily picked. Has been
When the cover B has been screwed, there is a slight gap between the end of the cover and the ring portion 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.
In response to this, for example, the pouch C is sent from below, and the shuttle-shaped adhesive base b protruding downward from the elongated boat-shaped flange portion is inserted from the two open sides of the peripheral portion 18 of the pouch C, The two sides are brought into contact with the lower surface of the flange portion.

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, and this is brought into contact with the shuttle-shaped bonding base b. Heat bonding. This bonding may be bonding by ultrasonic waves or bonding by an adhesive, but in practice, thermal bonding can be suitably used.

The spout body A, the lid B, and the connecting cross rib 8 of the present invention are formed separately from each other, and are all injection-molded with a thermoplastic resin, for example, polyethylene or polypropylene. The molding material of the spout body A is a material that can be thermally bonded to the inner surface of the pouch C. When the lid B is screwed to the spout body A,
It is desirable to select one that can obtain tightness. 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 tightly tightens the screw by utilizing the difference in the degree of the rigidity as in the combination of the materials. Can be easily done. Even if the molding material used for the spout body A and the lid is reversed, tight winding can be performed in the same manner as described above.

[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 portion b and the connecting cross rib 8 attached to the adhesive base portion b of the spout body A. In addition, when sucking the contents from the pouch C with the spout being attached to the spout, the pouch C did not become blocked during the suction and became unable to be sucked, making the container extremely easy to drink. In addition, since the connecting cross rib 8 is detachably connected to the adhesive base b, if the cross rib is removed and discarded after drinking, the volume of garbage can be reduced.

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 a synthetic resin. Pouch C on adhesive base b
In bonding the peripheral portions 18 such as described above, this contributes to further improving the accuracy of the liquid tightness.

Since the elongated boat-shaped flange has side faces on both sides and the projections 2 are formed on both ends, reliable transport when attaching the spout body A to the pouch C or the like can be achieved. Stable mounting is possible.

Further, 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 also improved. By providing the groove 21, the lid can be easily picked when the screw is attached or detached during use.

[Brief description of the drawings]

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

FIG. 2 is a front view (2-1) and a bottom view (2-2) of a state in which a spout body, a cap, and a connection extension cross rib of FIG. 1 are set.

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 portion b Adhesive base c Outlet tube portion 1 Both side surfaces 2 Projecting portion 4 Adhesive surface 6 Adhesive portion 8 Connecting cross rib 10 Large diameter portion 11 Ring portion 12 Small diameter Part 13 Screw 14 Thick part 15 Groove 16 Opening 17 Tip of connecting cross rib 18 Perimeter 19 Fitting recess 20 Fitting projection 21 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. A pouch footed spout, characterized in that it has a shuttle shape when viewed from the bottom so as to maintain its performance, and that a cross rib is detachably connected to the adhesive base of the shuttle shape. 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 at the base of the portion. 3. A ring part is provided in the middle of the outlet cylinder part,
The slender boat-shaped flange part has a large diameter, the middle ring part has a smaller diameter, a screw thread for the lid is formed in this small diameter part, and the lid can be screwed to the spout cylinder. The spout with a foot for a pouch according to claim 1 or 2, characterized in that: 4. The 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.