JP2001301768A - Replaceable container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a replaceable container formed of an outer container and a replaceable inner bag inside the outer container, sealing and packaging a liquid content by the inner bag, provided with superior self-supporting properties, outer appearance and other performances, which lets the content flow in a good manner by the inner bag only, easily holds the content by the outer container even in the case the capacity of the container is large and safely and easily pours the content. SOLUTION: The replacing type container 100 is constituted, for instance, of the plastic outer container 70 and the inner bag 50, and the outer container 70 is provided with a peripheral wall 72 and a bottom plate 73, and a handle 71 is provided outside the peripheral wall 72 and an engaging section 74 is provided inside the upper peripheral wall. The inner bag 50 is provided with gusset sections, upper and lower, and the lower gusset section is heat sealed by a seal pattern of a ship bottom shape, while one gusset-shaped section of the upper gusset section is heat sealed by a seal pattern of a reverse ship bottom shape, and a protruded section of a tapered off shape is formed on another gusset section, and a pouring outlet formed of a plastic formed body is bonded on the upper end of the protruded section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a replaceable container formed by combining an outer container and an inner bag used inside the container. More specifically, the present invention relates to a liquid container such as a liquid material. The contents can be safely and easily poured out during packaging and use, and after using the contents,
The present invention relates to a replaceable container that can be used repeatedly by removing an empty inner bag from an outer container, attaching a new inner bag filled with contents to the outer container, and using the inner bag.

[0002]

2. Description of the Related Art Conventionally, in addition to various drinks such as mineral water and fruit juice, liquid seasonings such as soy sauce, sauces and mentsuyu, and liquid substances such as various liquid detergents are mainly stored in plastic bottles, glass bottles, metal cans and the like. The containers were filled into formable containers, distributed and used, and the used containers were discarded. However, there is also a problem of waste disposal, and these containers are being separated, collected, and recycled after use. Further, such shape-retaining containers have a strong tendency to consume resources, and the ratio of the container cost to the product cannot be ignored.

[0003] From such a standpoint, there has been a demand for a light-weight, non-bulky, low-cost, simple container such as a bag made of a soft packaging material such as a laminate film. Such a simple container can be used as a substitute container for a shape-retaining container such as the plastic bottle, the glass bottle, and the metal can, and a refill container used for refilling a container such as a used bottle with the same contents. It has come to be used as well. As such a simple type container, for example, one using a standing pouch having autonomy as it is, or one having a narrow width spout at the top of the standing pouch formed by heat sealing and trimming the outside thereof, In order to further stabilize the opening property and shape-retaining property of the spout, there is a type in which a spout made of a plastic molded body is attached to the upper part of the standing pouch.

[0004] Such a pouch consumes a small amount of material, is lightweight, and can pack its contents compactly, so that resource saving and distribution costs can be reduced, and disposal after use is also easy. Among them, a pouch with a plastic spout attached to the upper part of the standing pouch is relatively easy to handle and has the best performance and suitability for use.

[0005] However, even when the pouch itself is provided with a spout made of a plastic molded body on the upper part of the above-mentioned standing pouch, the laminated film forming the pouch itself is thin, has low rigidity, is inferior in shape retention, and the shape of the pouch is bottle-shaped. If the pouch is filled with the contents in the case of a vertically long shape similar to that of above, the wrinkles are generated inward from the side seals on both sides at the position closer to the top from the middle of the pouch body,
There is a problem of poor appearance, and when pouring out the contents, if the pouch is strongly grasped by hand, the contents will pop out, so it is necessary to handle it carefully. In particular, a relatively large pouch with a capacity exceeding 1 L Then, there was a problem that the operation of dispensing became troublesome.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to seal and package a liquid material such as a liquid material. A container comprising a replaceable container, that is, an outer container made of plastic and an inner bag which can be easily attached and detached inside the outer container, and the inner bag has a main body portion. Is formed of a laminated film, is made into a self-supporting form, has a spout made of plastic molded material on the top, has excellent preservation of contents, is lightweight and bulky, and is disposed of after use. It is also easy to use, and it is smart in appearance, similar to shape-retaining containers such as bottles, and does not break or wrinkle in bags even after filling the contents, and has excellent form stability and display effect at stores , To distribute even the inner bag alone In addition, when using the contents, it is easy to hold even when the capacity is relatively large due to the action of the outer container, and the contents can be poured out safely and easily. An object of the present invention is to provide a replaceable container that is generally excellent in terms of disposability.

[0007]

The above objects can be attained by the present invention described below. That is, the invention described in claim 1 is a replaceable container obtained by combining a plastic outer container and an inner bag used by being mounted inside the outer container, wherein the inner bag is formed of a laminated film. And
The upper and lower portions of the inner bag are formed in a form having a gusset portion formed by folding an upper surface film or a bottom film inward and inserting between the two front and rear wall films, respectively, and the body portion has two front and rear surfaces. Formed by heat-sealing both side edges of the wall film with side seal portions, and the lower gusset portion is heat-sealed with a seal pattern having a shape that imparts independence, and the front and rear sides of the upper gusset portion On the upper side of one of the folds, the film on both sides thereof, that is, the wall film and the upper surface film opposed thereto are extended, and the width is reduced on both sides in the upward direction. A protrusion is provided, and both side edges of the protrusion are heat-sealed with an upper seal portion having a shape extending from a base of the fold to an upper side of the protrusion, and a plastic is formed on an upper portion of the protrusion. A spout made of a molded body of tic is joined, and the outer container is formed at least with a peripheral wall and a bottom plate, and prevents the inner bag from falling off in any of the inner sides of the peripheral wall. A replaceable container characterized in that it is provided with a locking portion for performing the operation.

In the above, at least the outer periphery of the fold-shaped portion of the inner bag where the upper gusset portion of the upper gusset is not provided may be heat-sealed, and the seal pattern may be arbitrary. In addition, the locking portion for preventing the inner bag from falling off provided inside the peripheral wall of the outer container, for example, suppresses the upper end of the pleated portion on the side where the protrusion of the upper gusset portion of the inner bag is not provided from above. The locking portion may be a fixing portion or a locking portion for fixing the flange portion of the spout of the inner bag from above.

By adopting such a configuration, the replaceable container of the present invention can be used by replacing only the inner bag, and therefore, is more disposable than a shape-retaining container such as a plastic bottle. Bags consume less material, are lighter and less bulky, and are easier to dispose of after use. The inner bag filled with the contents is easy to handle because the lower gusset portion and its seal pattern impart autonomy, and the main body becomes a tubular body with the upper and lower gusset portions. Therefore, it can be packed compactly for its capacity, and it is possible to reduce distribution costs and display space at stores.

On the upper side of one of the gusset portions of the upper gusset portion of the inner bag, a projecting portion is provided in which the film on both sides is extended and the width decreases on both sides in the upward direction. Both side edges of the protrusion are heat-sealed with an upper seal portion having a shape extending from the base of the fold to the upper side of the protrusion, and a spout made of a plastic molded body on the upper portion of the protrusion. Since the spout is joined, the spout has good shape retention, and the contents can be safely and easily poured out. Further, the appearance is smart similar to a shape retention container such as a bottle, The display effect is also excellent.

When the contents are transferred to another container, the inner bag is attached to the plastic outer container. Therefore, the spout is opened, the outer container is held, and the opening is closed. By tilting toward the part, no extra force is applied to the inner bag, the contents flow naturally toward the opening, and due to the internal pressure, the film on both sides of the upper gusset part including the protrusion is outward. It spreads and a funnel shape by the wall film and the top film is formed in this portion. Therefore, the contents flow to the spout smoothly, and the contents can be safely and easily transferred to the end.

According to a second aspect of the present invention, the upper gusseted portion of the inner bag, which is not provided with the protrusion, is provided with a seal pattern in which the inner side is convex toward the upper side. 2. A replaceable container according to claim 1, which is sealed. The seal pattern in which the inner side is convex toward the upper direction may be any seal pattern as long as the inner side is substantially convex toward the upper direction.

By adopting such a configuration, in addition to the operation and effect of the invention described in the first aspect, when the contents are filled in the inner bag, the upper portion of the inner bag is easily formed into a shape similar to the lower portion. As a result, the body of the inner bag can be formed into a cylindrical body having a more uniform shape. Also, when transferring the contents filled in the inner bag to another container, the film on both sides of the upper gusset portion including the protruding portion is spread outward by the internal pressure of the contents, and the wall film and the top film are formed on this portion. At this time, the top film naturally forms a ridgeline from the convex upper end of the seal pattern, whose inside is convex toward the upper direction, toward the spout. A well-shaped funnel shape is formed. Therefore,
The shape retention is improved, the contents flow to the spout more smoothly, and the contents can be safely and easily transferred to the end.

Further, the rigidity of the upper portion of the inner bag is improved by the fold portion on the side where the protrusion is not provided and the heat sealing portion of the portion by the seal pattern. Is reinforced, and after filling the contents, the occurrence of wrinkles, which are generated inward from the side seal portions on both sides, at the position closer to the upper portion from the middle portion of the bag body, is also prevented, and the appearance is further improved. Can be.

[0015] In the invention described in claim 3, the seal pattern in which the inner side of the inner bag is convex toward the upper direction,
3. The replaceable container according to claim 2, wherein the inside is one of an upwardly arcuate shape, a trapezoidal shape, and a seal pattern that is convex in an obtuse inverted V-shape.

By adopting such a configuration, in addition to the operation and effect of the invention described in the second aspect, for example, the pleated portion on the side where the protrusion of the gusset portion on the upper portion of the inner bag is not provided can be formed, for example. When the inside is heat-sealed with an upwardly convex arc-shaped seal pattern, when the contents are poured out, the funnel shape formed on the protruding portion becomes a shape close to a cone, and the inside is , Trapezoidal, or heat-sealed with an obtuse inverted V-shaped convex pattern, a ridge-like bend from the respective corners toward the spout on the upper funnel-shaped upper film side, resulting in a funnel The shape becomes a shape like a pyramid. And in each case,
Since the funnel shape is stabilized, the shape retention is improved, the contents flow to the spout more smoothly, and the contents can be safely and easily transferred to the end.

According to a fourth aspect of the present invention, the inner line of the upper seal portion for heat-sealing both side edges of the folded portion on the side where the protrusion of the upper gusset portion of the inner bag is provided, From the bases on both sides of the fold to the upper side of the protrusion,
4. The replaceable container according to claim 1, wherein the container is heat-sealed in a shape connected by an inclined straight line.

By adopting such a configuration, in addition to the functions and effects of the invention described in any one of the first to third aspects, the funnel shape formed by the films on both sides of the projecting portion becomes larger and larger. Since the shape becomes stable, the shape retention of the funnel shape is further improved, and the contents can be poured out more smoothly.

According to a fifth aspect of the present invention, there is provided a ship bottom seal pattern in which a gusset portion at the lower part of the inner bag is provided with a self-sufficiency shape, the seal pattern having a lower central portion and increasing toward both end portions. The replaceable container according to any one of claims 1 to 4, wherein:

By adopting such a structure, in addition to the functions and effects of the invention according to any one of claims 1 to 4, the inner bag filled with the contents has a bottom portion corresponding to the seal pattern. For example, in the case of a ship bottom-shaped seal pattern in which the inside is formed by a downwardly curved arc, a circular or elliptical shape, and a shape in which the inside rises straight from the bottom with a predetermined width and both sides are sloped outward. In the case of the ship bottom type seal pattern, it becomes hexagonal shape, the center part is greatly widened back and forth, and the legs of the heat seal part are formed on the outer periphery of the bottom, so the inner bag self-supporting Can be further improved.

According to a sixth aspect of the present invention, there is provided the replaceable container according to any one of the first to fifth aspects, wherein a handle is provided on the outer container.

By adopting such a structure, in addition to the operation and effect of the invention described in any one of the first to fifth aspects, when the replaceable container is held, the handle can be grasped and held. In the case of a container having a relatively large size, the container can be held more easily, and the contents can be poured out more safely and easily.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention, such as a film and a spout used for an inner bag of a replaceable container according to the present invention, and a method of manufacturing an inner bag and an outer container will be described. First, the film used for the inner bag of the replaceable container of the present invention is mainly a laminated film mainly composed of plastics, but is not particularly limited, and is a known film used for a bag for packaging contents such as liquid. Any of the above laminated films can be used, and a suitable material can be freely selected and used according to the conditions of use, such as the type of contents to be filled and the presence or absence of heat treatment after filling. As a typical example of the configuration of the laminated film used for the inner bag of the replaceable container of the present invention, the following configuration is exemplified.

(1) ON film / adhesive / L·LDPE
Film (sealant layer) (2) ON film / adhesive / biaxially stretched HDPE film / adhesive / L / LDPE film (sealant layer) (3) ON film / adhesive / biaxially stretched PP film / adhesive / L・ LDPE film (sealant layer) (4) ON film / adhesive / biaxially stretched PP film / adhesive / aluminum foil / adhesive / L ・ LDPE film (sealant layer) (5) ON film (silica or alumina deposited layer) ) / Adhesive / biaxially stretched HDPE film / adhesive / L·LDPE
Film (sealant layer) (6) ON film / anchor coat layer / co-extrusion (HDPE layer / L-LDPE layer) (the sealant layer is L-LDPE layer) (7) ON film / anchor coat layer / co-extrusion Coat layer (HDPE layer / LDPE layer) / adhesive / L-LDP
E film (sealant layer) (8) PET film / adhesive / aluminum foil / adhesive / ON film / adhesive / L / LDPE film (sealant layer) (9) PET film / adhesive / aluminum foil / adhesive / ON film / adhesive / CPP film (sealant layer) (10) PET film / adhesive / ON film / adhesive /
Aluminum foil / adhesive / L / LDPE film (sealant layer) (11) PET film / adhesive / ON film / adhesive /
Aluminum foil / adhesive / CPP film (sealant layer) (12) PET film / adhesive / EVOH film / adhesive / ON film / adhesive / CPP film (sealant layer) Instead, various combinations of laminated films can be used.

In the above structure, the ON film is a biaxially stretched nylon film, the L / LDPE is a linear low density polyethylene, the HDPE is a high density polyethylene, the LDPE is a low density polyethylene, the PP film is a polypropylene film, and the PET film is biaxial. The stretched polyethylene terephthalate film and the EVOH film indicate a saponified ethylene-vinyl acetate copolymer film, and the CPP film indicates a non-stretched polypropylene film. Also,
The anchor coat is a kind of primer coat which is pre-coated on the base film side in order to improve adhesiveness when laminating a resin by extrusion coating.

In the construction of the laminated film, ON
Films and PET films provide pouches with mechanical strength and printability as base films, and biaxially stretched HDPE films as intermediate layers and biaxially stretched PP films have moisture permeability (moisture proof) in addition to mechanical strength. It is laminated to improve. An aluminum foil, a silica or alumina vapor-deposited layer, an EVOH film, and the like are laminated to impart gas barrier properties, thereby improving the storage stability of the contents.

As the sealant layer, L·LDP
Two types of examples, E film and CPP film, are given.
L-LDPE film is excellent in heat seal stability and content resistance, such as stress cracking resistance to surfactants, and CPP film is excellent in heat resistance and low odor. It is suitable for packaging contents.

In the sealant layer, in addition to the above, an ethylene / α-olefin copolymer, ethylene / vinyl acetate copolymer, ethylene / acrylic acid copolymer, ethylene Acrylic ester copolymers, ionomers, polyester resins and the like can also be appropriately selected and used.

In particular, an ethylene / α-olefin copolymer obtained by polymerization using a single-site catalyst such as a metallocene catalyst has a narrow molecular weight distribution and a stable copolymerization ratio, so that the low-temperature heat sealability and It is excellent in hot sealability, and has a step due to a difference in film overlap in the heat seal portion, such as between the upper and lower gusset portions and the body seal portion, like the inner bag of the replaceable container of the present invention. It is suitable for a bag or a sealant layer of a bag in which a spout made of a plastic molded body is bonded to the inner surface of the bag by thermal bonding in that the generation of pinholes due to the loss of a seal can be prevented. Further, by using the copolymer blended with an olefin-based elastomer, the heat fluidity of the sealant layer is improved, and the occurrence of pinholes due to the step or the like can be more effectively prevented.

The contents to be filled in the replaceable container of the present invention may be anything other than liquid, food, non-food, etc., as long as they have fluidity such as powder or granule. In the case where contents that are easily oxidized such as oil are filled, an ultraviolet absorber can be kneaded into any one or a plurality of layers of the laminated film. Further, an ultraviolet absorbing agent may be mixed with a resin, and the ultraviolet absorbing layer may be provided by a coating method. As the ultraviolet absorber, one or more compounds selected from the following groups can be used. In organic systems, benzophenone system, benzoarizol system, salicylic acid system, organic nickel system, acrylonitrile system, monobenzoic acid system, oxalic anilide system,
Cyanoacrylate-based and triazo-based ultraviolet absorbers, and inorganic materials include oxides of each element such as titanium, zinc, and cerium.

The spout made of a plastic molded body attached to the inner bag of the replaceable container of the present invention is as follows:
The adhesive base can be inserted into the inner surface of the upper part of the protrusion extending from the upper part of the bag, and can be joined by heat bonding using a sealant layer of the bag. Such a spout can be easily manufactured by, for example, injection molding of plastic, and the shape thereof may be a two-piece type in which the spout and the cap are separately formed. It may be a one-piece type integrally formed through a thin portion. If the spout is of the two-piece type, after joining the spout to the bag, for example, filling the contents from the opening of the spout and before closing the cap,
A sealing material made of a laminated film may be thermally bonded to the opening to securely seal. The material of the spout needs to be able to be thermally bonded with the sealant layer of the inner bag, and for example, polypropylene, polyethylene of medium density or high density, polyester, etc. can be used.

Next, a method of manufacturing the inner bag of the replaceable container of the present invention, which is manufactured using the above-described laminated film and the spout, will be described. The inner bag used for the replaceable container according to the present invention is, for example, a bag making machine for a conventional standing pouch using a bag making machine for two-row butt bag making for a single-row bag making. Upper and lower gussets and protrusions extending therefrom can be formed. The bag can be easily manufactured by appropriately adding a heat sealing device for each heat sealing portion and a trimming device for cutting the outside of the protruding portion and the like. The spout can be joined to the inner bag by attaching the mounting device to the bag making machine and attaching it in-line with the bag making.
A mounting device can be prepared separately and mounted off-line.

In the heat sealing of the gusset at the upper part of the bag, the sealing pattern is different between the pleats on the side where the projections for joining the spouts are provided and the other pleats. It is necessary to heat seal, but it is possible to make a bag without any problem by dividing into a plurality of sections and heat sealing.

In the replaceable container of the present invention,
The outer container used by mounting the inner bag filled with the contents on the inner side, when the contents filled in the inner bag are poured out, even if the inner bag has a relatively large capacity, It is intended to allow the contents to be safely and easily poured out without applying extra force to the inside, and it is assumed that the contents can be repeatedly used by replacing the inner bag.
Therefore, it is preferable that the outer container has rigidity and can be easily manufactured. For this purpose, the outer container is formed of a plastic molded body, and is formed of at least a peripheral wall and a bottom plate. It is possible to adopt a configuration in which a locking portion for preventing the inner bag attached to the inside from dropping upward is provided on any of the insides. Further, in order to make it easier to hold the outer container, a handle may be provided on a part of the peripheral wall or the like.

The above-mentioned engaging portion is only required to prevent the inner bag from falling out of the outer container when the contents are poured out, and may be provided at any position as long as it is inside the outer container peripheral wall. The shape is not particularly limited, and can be freely designed. However, in order to securely lock the inner bag, it is effective to lock the upper end of the pleat on the side where the spout of the upper gusset of the inner bag is not joined, or the flange of the spout. It is a target. Like the spout, such an outer container can be easily manufactured by plastic injection molding or the like, and there is no particular limitation in material as long as it has appropriate rigidity, and general-purpose resins such as ABS resin and polypropylene are suitable. Can be used for In addition, a recycled resin may be used, so that the cost can be further reduced.

[0036]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below more specifically with reference to the drawings. However, unless the present invention exceeds the gist,
It is not limited to the following drawings. FIG. 1 is a front view showing the configuration of an embodiment of an inner bag used in the replaceable container of the present invention. FIG. 2 is a side view showing a shape when the inner bag shown in FIG. 1 is filled with contents and the inner bag is inflated.
FIG. 3 is a perspective view illustrating the configuration of one embodiment of the replaceable container of the present invention. FIG. 4 is a perspective view illustrating the configuration of another embodiment of the replaceable container of the present invention.

The inner bag 50 used in the replaceable container of the present invention shown in FIGS. 1 and 2 has an upper part and a lower part between the upper and lower parts of the front and rear wall films 1, 1 ', respectively. The film 2 or the bottom film is folded inward. In the case of the top film, the top film cutouts 4 and 4 are provided near the upper ends of both side edges, and in the case of the bottom film, both side edges are provided. The bottom film cutouts 5, 5 are provided and inserted near the lower end of the portion, and are formed into a shape having gusset portions 6, 7 by a method of heat sealing with a predetermined seal pattern. 1 '
Are heat-sealed with side seal portions 9, 9.

The lower gusset portion 7 is heat-sealed with a ship bottom-shaped seal pattern in which the inside is formed by a downwardly curved arc, that is, a bottom seal portion 8, and
The front gusset portion 6 has a front pleated portion, on both sides of which a film on both sides, that is, a wall film 1 and an upper surface film 2 opposed thereto are extended, so that the width is reduced on both sides toward the upper direction. A protrusion 10 having a shape such that an inner line extending from the base of the fold to the upper side of the protrusion 10 is connected by an inclined straight line. Upper seal portions 11, 1
1, and a spout 20 made of a plastic molded body is joined to the upper part of the protruding part 10 by thermal bonding, and a pleated part on the back side of the upper gusset part 6 has an inner side. The seal pattern has an upwardly curved arc-shaped curve, that is, the seal pattern is heat-sealed by the upper gusset portion rear seal portion 13.

In this case, the spout 20 has a cylindrical portion 21 as a main body, an adhesive base 22 at the lower portion, a flange 23 as appropriate, and a separate screw-type cap 24 at the upper portion. Is attached. Outlet 20
Is bonded to the inner bag 50 by inserting the adhesive base 22 of the spout 20 between the films on both sides of the upper portion of the protruding portion 10 of the inner bag 50 and heat-pressing. In addition, inner bag 5
0 is filled from the spout 20 before the cap 24 is attached.
Prior to mounting, a sealing material made of a laminated film may be thermally bonded to the opening of the spout 20 for sealing.

By adopting such a configuration, since the portions other than the spout 20 are formed of a laminated film, the content is well preserved, lightweight and bulky, and disposal after use is easy. Since the inner bag 50 (see FIG. 2) filled with the contents is heat-sealed at the lower gusset portion 7 with the bottom seal portion 8 having a bottom shape in which the inside is formed by a downwardly curved arc. Since the lower cross section has a circular or elliptical shape and a ring-shaped leg is formed on the outer periphery of the bottom, the self-sustainability is excellent and the handling is easy. In addition, since the main body of the inner bag 50 is formed into a tubular shape by the upper and lower gusset portions 6 and 7, it is compact and occupies no space for its capacity, and has a smart appearance similar to a shape-retaining container such as a bottle. In addition, it has excellent display effects at stores.

Also, regarding the form of the inner bag after the contents are filled, the protruding portion 10 at the top of the bag has a trapezoidal shape in which both sides are squashed in the upper direction so that the width becomes narrower. In addition, the upper gusset portion 6 also has a pleated portion on the back side, and the pleated portion is heat-sealed with a seal pattern in which the inside has an upwardly curved arc-shaped curve, and both sides of the gusset portion 6 are heat-sealed. Since the upper edge is joined to the front fold by the upper film cutouts 4, 4, the reinforcing effect of the upper part of the inner bag is improved. The occurrence of wrinkles that had been broken has also disappeared,
Good morphological stability and excellent appearance. Therefore, even when the outer container is not attached, it can be satisfactorily distributed.

FIGS. 3A and 3B are views for explaining the structure of one embodiment of the replaceable container of the present invention. FIG. 3A is a perspective view of the replaceable container, and FIG. It is an expanded sectional view. The replaceable container 100 shown in FIG.
As shown in (a), the inner bag 50 having the structure shown in FIGS. 1 and 2 is mounted inside a plastic outer container 70. In this case, the plastic outer container 70 includes a peripheral wall 72 provided with a handle 71 and a bottom plate 73.
A locking portion 74 for preventing the inner bag 50 from dropping upward is provided along the inner periphery of the upper end on the side where the handle of the peripheral wall 72 is provided. It is configured.

As shown in the enlarged cross-sectional view of the S side of (b), the locking portion 74 is a spout of the upper gusset portion 6 of the inner bag 50 filled with the content mounted inside the outer container 70. 20
The inner bag 50 is locked by holding the front end of the fold-shaped part on the side where no is provided, that is, the front end of the upper gusset part back side seal part 13 from above. Such a locking portion 74 does not necessarily need to be provided in a continuous shape along the inner circumference of the upper end of the peripheral wall 72, and may be provided in a spot shape divided into a plurality of locations. The outer container 70
Can be manufactured by, for example, injection molding of plastics. However, the peripheral wall 72 provided with the handle 71 and the bottom plate 73 may be formed into an integrated shape, or may be separately formed and screwed, You may make it attach by another fitting method.

By adopting such a structure, when the contents filled in the replaceable container 100 are transferred to another container, for example, the spout 20 of the inner bag 50 is opened and the cap 24 is removed. Then, holding the handle 71 of the outer container 70, aligning the opening with the opening of the container, the replaceable container 10
By tilting 0, the contents naturally flow to the spout, and the film on both sides of the protrusion 10, that is, the wall film 1 and the upper surface film 2 opposed thereto are spread in a funnel shape by the internal pressure. Things are poured out smoothly. At this time, the replaceable container 100 can be poured out with the handle 71 even when the content is relatively large, so that no extra force is applied to the inner bag 50 and the contents can be safely and easily completed to the end. Can be transferred.

FIGS. 4A and 4B are views for explaining the structure of another embodiment of the replaceable container of the present invention. FIG. 4A is a perspective view of the replaceable container, and FIG. It is an expanded sectional view in a surface. The replaceable container 200 shown in FIG.
In the structure of the replaceable container 100 shown in FIG. 3, the inner bag 50 is left as it is, and only the outer container 70 is changed to the structure of the outer container 80. The outer container 80 is similar to the outer container 70 shown in FIG. 3 in that the outer container 80 is formed by a peripheral wall 72 provided with a handle 71 and a bottom plate 73. The configuration of the unit 74 is modified as shown in the figure.

That is, in the outer container 80, the locking portion 74 is formed in an arc-shaped arm shape along the upper part of the peripheral wall 72, and the center portion of the outer container 80 is gripped by the hinge portion 75 having a thin portion. It is connected to a position above 71, is a movable type that opens outward, and has fixed portions 76b provided at both ends of an arc-shaped arm-shaped locking portion 74, and is provided at a corresponding position above the outer container main body. It is configured so that it can be fitted and fixed to the fixed portion 76a. In the case of the locking portion 74, the inner bag 50 is also used.
As shown in the enlarged cross-sectional view of the S surface of (b),
The tip of the pleated portion of the upper gusset portion 6 of the inner bag 50 in which the contents are filled, where the spout 20 is not provided, that is,
It holds and locks the distal end portion of the upper gusset portion rear side seal portion 13 so as to hold it from above.

The engagement and disengagement of the fixing portions 76b at both ends of the locking portion 74 with the container main body fixing portion 76a are performed by opening and closing the fixing portions 76b on both sides outward.
In addition, since such an outer container 80 can be formed in a shape in which the locking portion 74 is opened outward through the hinge portion 75, there is no reverse tapered portion, so that the forming is easy and the productivity can be improved.

By adopting such a configuration, when the inner bag 50 is replaced with a new one, the replaceable container 200 can be detached and mounted by opening the locking portion 74 to the outside, so that the inner bag can be more easily made. Can be replaced. Except for the points described above, since the configuration is the same as that of the replaceable container 100 shown in FIG. 3, the same operation and effect as those described for the replaceable container 100 shown in FIG. 3 can be obtained. .

[0049]

As described above in detail, according to the present invention, there is provided a replaceable container which is used by mounting an inner bag with a spout inside a plastic outer container. Can be hermetically packaged,
In addition to distribution in the form of the inner bag attached to the outer container, the inner bag alone can be distributed well, and the inner bag itself has good preservability of the contents, is lightweight and bulky, and can be disposed after use. It is easy, and has a three-dimensional shape similar to a shape-retaining container such as a bottle, has excellent self-sustainability, excellent shape stability, does not cause wrinkles in the body, and when using the contents, Attach the inner bag to the inside of the outer container and pour out the contents, or
It can be transferred to another container, and even when the capacity of the container is relatively large, it can be poured out by holding the handle of the outer container. The effect of being able to safely and easily transfer contents to the end without adding force, and to provide a replaceable container with excellent performance, suitability for use, and excellent overall appearance, disposal, and economy. To play.

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of an embodiment of an inner bag used for a replaceable container according to the present invention.

FIG. 2 is a side view showing a shape when the inner bag shown in FIG. 1 is filled with contents and the inner bag is inflated.

FIG. 3 is a diagram illustrating a configuration of an embodiment of a replaceable container according to the present invention, wherein (a) is a perspective view of the replaceable container,
(B) is an enlarged cross-sectional view on the S surface of (A).

FIG. 4 is a view for explaining the configuration of another embodiment of the replaceable container according to the present invention, wherein (a) is a perspective view of the replaceable container, and (b) is an enlarged view of the S surface of (a). It is sectional drawing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1 'Wall film 2 Top film 2a Top film fold part 3 Bottom film 3a Bottom film fold part 4 Top film cutout part 5 Bottom film cutout part 6, 7 Gusset part 8 Bottom seal part 9 Side seal part 10 Projection Part 11 Upper seal part 12 Projection upper seal part 13 Upper gusset part rear seal part 20 Outlet 21 Tube part 22 Adhesive base 23 Flange 24 Cap 50 Inner bag 70, 80 Outer container 71 Handle 72 Peripheral wall 73 Bottom plate 74 Lock Part 75 Hinge part 76a, 76b Fixing part 100, 200 Replaceable container

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masafumi Shimizu 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (72) Inventor Koji Otsuka 1-chome, Ichigaya-cho, Shinjuku-ku, Tokyo No. 1-1 Inside Dai Nippon Printing Co., Ltd. (72) Nana Sugimoto Inventor 1-1-1, Ichigaya Kagacho, Shinjuku-ku, Tokyo (72) Kenichi Masuda Inventor Kenichi Masuda, Ichigaya-Kaga-cho, Shinjuku-ku, Tokyo 1-1-1 1-1 Dai Nippon Printing Co., Ltd. (72) Inventor Takao Okada 1-1-1 Ichigaya Kagamachi, Shinjuku-ku, Tokyo F-term in Dai Nippon Printing Co., Ltd. 3E064 AB13 AB28 BA22 BB03 EA12 EA23 FA04 GA01 HM01 HN65 HS04 3E067 AA03 AB26 AB28 BA12B BA31B BB14B BB14C BB15B BB16B BB25B CA24 EA06 EA20 EB22 EE11 EE40

Claims (6)

[Claims] 1. A replaceable container comprising a combination of a plastic outer container and an inner bag attached to the inside of the outer container, wherein the inner bag is formed of a laminated film. The top and bottom are between the front and back wall films,
Each is formed in the form of having a gusset part which is inserted by folding the top film or bottom film inward, and the body is formed by heat-sealing both side edges of the front and rear two wall films with side seal parts. And the lower gusset portion is heat-sealed with a seal pattern having a shape that imparts independence, and the upper side of one of the front and rear folds of the upper gusset portion is provided on both sides thereof. The film, i.e., the wall film and the upper surface film facing the film are extended, and a protrusion having a shape in which both sides become narrower in the upper direction is provided, and both side edges of the protrusion are formed with the folds. The upper part of the protruding part is heat-sealed with an upper sealing part connected from the base of the protruding part to the upper side of the protruding part, and a spout made of a plastic molding is joined to the upper part of the protruding part. The container is formed of at least a peripheral wall and a bottom plate, and a locking portion for preventing the inner bag from dropping upward is provided on any inside of the peripheral wall. Replaceable container. 2. The gusseted portion on the side of the inner bag where the gusset portion is not provided with a projection is heat-sealed with a seal pattern in which the inner side is convex toward the upper side. The replaceable container according to claim 1, wherein 3. The seal pattern in which the inner side of the inner bag is convex toward the upper direction is any one of an upwardly arcuate, trapezoidal, or obtuse inverted V-shaped seal pattern. The replaceable container according to claim 2, wherein the container is provided. 4. An inner line of an upper seal portion for heat-sealing both side edges of a gusset portion provided with a protrusion of an upper gusset portion of the inner bag, and a base portion on both sides of the fold portion. 4. A heat seal is formed in a shape that is connected by an inclined straight line from to the upper side of the protruding portion.
The replaceable container according to any one of the above. 5. A seal pattern having a shape that imparts independence of a gusset portion at a lower portion of the inner bag is a ship bottom-shaped seal pattern in which a central portion is low and becomes high toward both side ends. The replaceable container according to claim 1. 6. The replaceable container according to claim 1, wherein a handle is provided on the outer container.