DE102010011208A1 - packaging system - Google Patents

Abstract

The invention relates to a packaging container for pourable liquids, powders and granules, in particular pourable foodstuffs, the packaging container consisting of an inner flexible bag with an outlet opening, an outlet part and an outer jacket, which is glued at certain points to the inner bag and supplied separately from it can. A handle enables a large number of packaging containers to be easily transported. The outer jacket of the packaging container can consist of two hinged hard shells. A further packaging container according to the invention consists of a foldable outer jacket, when it is folded or unfolded, the inner flexible bag can be attached to or separated from the outlet part and introduced into different recycling systems.

Description

The invention relates to a packaging system for pourable liquids, powders and granules, in particular pourable food.

The packaging container according to the invention consists of an outer jacket, preferably a cardboard or a hard shell, an inner flexible bag with an outlet opening and an outlet part connected to it. The inner flexible bag can either be removed from the outer shell by pulling on the outlet part connected to it or it can be removed by opening the hard shell.

From the prior art containers are known which are made of several different materials. So will in DE 69910428 T2 a packaging container made of polyethylene and aluminum is described with a laminated tubular multilayer packaging material.

Since separation of a packaging container made of a plurality of different materials into its base materials is extremely laborious for recycling, there is a great need to provide packaging containers made of only a very few materials and components which are easy to separate from each other this way to enable a fast and resource-saving return of the respective components in the recycling cycle.

Another problem with prior art packaging containers is that when they are opened, air flows into the package and the contents of the packaging container come into contact with the surrounding air, triggering various chemical processes, particularly in the case of liquid foods and may result in reduced shelf life and thus faster perishability of the liquid contents.

Although there are packages that fold when emptied and thus counteract the entry of air, but these are again poorly stackable, consume unnecessarily much space during transport and are insufficiently stable against external pressure. So revealed EP 0 746 507 B1 a form of bag-like packaging containers, which consist only of the flexible bag and have no outer shell, are poorly stackable and insufficiently stable against external pressure, but largely prevent the ingress of air into the container.

The object of the present invention is therefore to provide a packaging system for pourable liquids, powders and granules, in particular pourable foodstuffs, which after use enables a simple recycling into the recycling loop and potentially a more cost-effective production. In addition, in some embodiments, the durability of the contents of the packaging container is to be increased. In this way, the known problems of packaging containers according to the prior art should be overcome.

This object is achieved by the technical teaching of the independent claims. Advantageous embodiments of the invention are specified in the dependent claims, the description, the figures and the examples.

The invention is a packaging container with an inner flexible bag made of a flexible fabric or a flexible film, a laminated fabric or a laminated film. The inner flexible bag is itself or after a corresponding treatment relatively dense or dense against the exchange of gases or liquids. Tight or relatively dense against the exchange of gases or liquids means that for a 1 L packaging container filled with one liter of water within 170 days storage at 23 ° C and normal humidity and air pressure no more than 0.3 vol .-% of water escape the flexible bag through the bag material. The inner flexible bag is firmly connected to the outlet part. The connection can be made via a weld, via an adhesive bond, by jamming, by casting or by the introduction of a guide wire. Preferably, the weld is produced by laser welding.

The outlet portion may be in the form of a screw cap, lid, resealable cap, valve, or suitable plug or cork.

The outlet part is preferably mounted in the lower or in the upper third of the packaging container.

The outer jacket completely surrounds the inner flexible bag except for the area of the outlet part. Accordingly, a recess is provided in this region of the outer shell.

At the area around this recess in the outer shell, the outlet part can be fastened with the inner flexible bag attached thereto. The connection can be made via a weld, via an adhesive bond, a Punching, a plug connection, a clamping device or via the introduction of a guide wire done. Preferably, the connection via an adhesive connection or a clamping device. On the one hand, the connection must ensure the required minimum degree of stability for the packaging container, and on the other hand, when the components of the packaging container are disposed of, this connection must be easily separable by pulling on the outlet part with little effort.

This inner flexible bag is preferably not fully connected to the outer jacket. The outer jacket can take over the function of a former as well as a stability transmitter and can additionally serve to print advertising and product information.

A non-full-surface bonding of inner bag and outer jacket preferably a punctiform and / or linear bonding or jamming, jamming or pinching. In some preferred embodiments, the inner flexible bag is point-to-point or linearly connected to the outer shell at 1-20 points. A preferred embodiment of the inner flexible bag is the tubular bag. This tubular bag need not necessarily have the form of a tube, but it is also possible to give the tub boot a certain shape, so that the tubular bag approximately the shape of a cylinder, cube, cuboid, tetrahedron, polygon container, star, triangle, heart , Wedge, tube, oval cylinder, bag, tube, bottle, triangular prism, pyramid or ball and thus conforms to the contours on the inside of the outer jacket, which has a comparable shape or forms some surfaces of a body of comparable shape. Preferably, the inner flexible bag is in the fully filled state of the inside of the outer shell very close. The inner flexible bag is preferably made of only one material or composite such as polyethylene, polyethylene terephthalate, polypropylene, polyesters, polyurethanes and multi-ply materials of the aforementioned materials or other common plastics for storing liquids and especially foods. The material for the flexible bag thus preferably consists of a plastic film, which can be constructed from up to 7 layers of different materials. However, these plastic bags may also have been steamed with alumina and / or silica. Depending on the content of the flexible bag, it must protect the contents from leakage or CO ₂ , be acid resistant, resistant to alcohol or protected from sunlight, so that sunlight-repellent layers, sunlight-reflecting layers or colored flexible bags are also used can.

The packaging container has an outlet part or pouring opening which is located at a position which makes it possible to pour out substantially the entire contents of the package. The outlet part is also preferably provided with a valve which only allows the outlet of the contents of the packaging container, but does not allow air, gases or liquid to enter the inner bag in the opposite direction. The outlet part is preferably located at a corner or at an edge or an optimal point given by the carton or bag shape of the bottom or a side part and may also be in the middle of each side of the package. The advantage of this embodiment is that when discharging liquid, powder or granules no or very little air enters the interior of the packaging container and so the located in the interior liquid or the powder or granules, and any other goods, not or only very little contact with air. This prevents oxidation processes, which ensures a longer shelf life of the food in the case of filling the packaging container with food. By means of a valve built into the outlet part and the flexible packaging of the packaging container, the inner flexible bag contracts due to the liquid weight and the vacuum created during emptying. Due to the elastic construction, the inner flexible bag does not or only very slightly fill with air, which protects the bag contents and leads to a longer shelf life of the bag contents.

In order to discharge the liquid from the packaging container, the packaging container is provided with a spout opening, which is preferably equipped with a valve. This valve, which can also be used as spout or portioner, must prevent that after pouring the liquid or the solid neither oxygen can penetrate into the packaging container or other liquid or powder can flow out of the bag.

An example of a valve usable according to the invention is shown in FIGS 4 - 7 shown. The 4 - 7 show the construction of the valve, which can be further provided by means of a screw cap with a lid. The valve has openings to exit the bag contents. In 7 For example, an embodiment of a valve having three openings is shown, wherein a different number of openings is possible. In the middle of the valve is a pin on which a rubber ring like in the 4 . 6 and 7 shown, plugged. The rubber ring only allows the outlet of the contents of the flexible bag from inside to outside through the three Through openings, wherein the rubber ring bulges outward by the pressure exerted on the bag contents pressure and let the bag contents emerge laterally past the rubber ring. As soon as pressure is no longer exerted on the bag contents, a negative pressure is created in the flexible bag, which causes the rubber ring in the valve to be pulled inwards, thereby closing the three openings in the valve.

Other possible forms of a valve could consist of a tubular outlet, wherein the tube has a thickening at a location in which a movable ball is enclosed so that the ball opens the tube facing the packaging container when pressure is applied to the bag contents that the bag can be emptied and pressed in pressure from the outside into the tube or due to negative pressure in the flexible bag, the ball in the tube in the direction of the bag and closes extending in the direction of the bag tube part of the spout.

In principle, the present invention also works without a valve, as long as the flexible bag is not actively re-expanded during emptying of the flexible bag before closing the outlet part, so that air, gas or liquid can penetrate into the bag.

In conventional packaging containers for liquid foods from the prior art, such as the known Tetra-Pak ^®, is used mostly on the basis of a carton, a lot of material technology, the same rigid material used on all surfaces of the packaging container construction. The use of several relatively rigid materials inevitably results in a rigid and inflexible construction. Due to the lack of elasticity of the packaging material and a pouring opening attached in the upper area, air also flows into the container, as a result of which the filling material comes into contact with air and consequently, if the foodstuff is involved, the contents spoil faster. On the other hand, packaging which does not have a multi-layered construction according to the Tetra- ^Pak® principle and which is glued together over its entire surface, however, exhibits poor stackability, bursts more easily or loses its stability during emptying.

Under stackability is understood that you can put at least 3 pallets, each with 11 layers of fully filled packaging container without Verpackungsumkarton each other without the stack collapses.

The present invention overcomes these disadvantages known from the prior art. In particular, easily recyclable, stable and stackable packaging containers are provided, which moreover can be easily and completely emptied and, even without a valve, prevent the entry of air into the inner bag during emptying. The packaging containers of this embodiment according to the invention preferably consist of only three materials (apart from the adhesive), namely preferably a plastic for the inner flexible bag, a plastic for the outlet part and a carton for the outer jacket.

The aim of the invention is to allow easy separation of the various components of the packaging container, on the one hand the outer shell, on the other hand, the inner flexible bag with the outlet part. After use of the packaging container, the user, another person or a similar device in this embodiment can pull away from the outlet part in the direction perpendicular to the surface in which the outlet part is located. As a result, the optional punctiform or linear connection of the inner flexible bag with the outer shell is optionally dissolved. In any case, the outlet part is thereby completely released from its connection with the section located around the recess in the outer jacket. This is easily possible according to the invention with a small amount of force. This allows the outflow part and the inner flexible bag attached thereto to be pulled out through the recess in this way. After separation, these two components can be disposed of separately or recycled. According to the invention such disposal in a completely empty, partially emptied, full or never filled state is possible.

In this way, eliminates a costly material separation, as is often required in the packaging for example milk in the prior art.

The packaging container presented here has an inner flexible bag and an outer jacket and preferably has a square or a rectangular, or even a different shape with a bottom surface, a top surface, two side surfaces, a front surface and a back surface. In principle, the invention is not limited to certain types of packaging, so that more unusual shapes such as heart, star, tetrahedron, pyramid, wedge, ball or the like can be used, the cubic or cuboid shape are preferred.

Alternatively, the outer jacket may also be bottle-shaped. An advantage of this variant is that this eliminates cleaning of the bottles.

Another preferred form of packaging container is the triangular prism. This preferred form of packaging container has an outer shell forming the three side surfaces of the triangular prism. Within the shell is a preferably cylindrical tubular bag or a tubular bag with a shape that also approximately corresponds to a triangular prism.

The outer jacket in these embodiments, preferably a paperboard or plastic, may be formed from a rectangular matrix which is correspondingly folded and bonded or glued along an overlapping part. The triangular prism preferably has either three side surfaces of equal size and an equilateral triangle (a = b = c) or two equally sized side surfaces and an isosceles triangle (a = b ≠ c) as the base.

All embodiments of the outer shell according to the invention are made so strong that they are also suitable for the use of carbonated drinks in the inner flexible bag. Over time, CO ₂ released over time can build up a pressure in the inner flexible bag, which can lead to a significant volume increase of the inner flexible bag. The resulting from the increase in volume of the inner flexible bag pressure on the outer shell this can withstand by its sufficient strength.

Another embodiment relates to a cylindrical outer shell having an inner flexible bag secured therein which is filled with granules of household chemicals such as drain cleaners. According to the invention, the solid outer shell and the inner flexible bag can be disposed of separately or recycled in this way.

In further embodiments, it is also possible to use an inner flexible bag whose volume in the filled state is significantly smaller than the outer jacket. If this small-volume inner flexible bag collapses upon removal of the contents or moves improperly in the outer shell back and forth, this small volume inner flexible bag can be attached via a special bracket on the outer jacket. According to the invention, adhesive dots or strips can also be used here, or a correspondingly large hooking device.

At the top of the packaging container, an outlet may optionally be located with a valve. Another preferred location for mounting the outlet is the upper portion of an edge between two side surfaces.

The outlet in the packaging containers according to the invention is in 6 and 7 shown. The outlet may have an external thread to fire the outlet by means of a plug.

4 time an outlet with an inner valve, which allows only the outlet of the contents of the inner bag, but not the entry of air and liquid.

The outer shell of the packaging container can be made of cardboard, cardboard, paper, fabric, edible materials such as corn or soybeans, bamboo, wood, plastic, plastic, cellulose, glass, a natural material, a textile material, leather, a composite material, metal or a Metal alloy, cardboard, cardboard and plastic are preferred and cardboard is particularly preferred. It is preferred if only one material is used for the outer jacket. Furthermore, the outer jacket is preferably not laminated, non-laminated, not multi-layered, contains no aluminum foil and is not fully bonded or bonded to the material containing the pourable liquid or the pourable solid. In addition, the outer jacket is preferably produced from a folding pattern. It is not necessary to connect two or more items together to obtain the outer shell.

The compound preferably bonding of the inner flexible bag with the outer jacket can be applied selectively and / or as a strip or tape so that the packaging container receives the necessary stability, but can also be easily separated from the bag to be disposed of separately can. Combinations of punk-shaped bonds with linear or strip-shaped or circular bonds can also be used. These 1-20 splices are adhesive surfaces of more than 4 mm ² each. Instead of these up to 20 large-area splices also several hundred or even several thousand small-area splices can be used, which then preferably distribute evenly or according to a specific pattern on the board surface. The type and design of the individual adhesive surfaces is irrelevant, but important is that a full-surface bonding is avoided and preferably the bonded surface significantly less than 50% of the total inner cardboard surface, preferably less than 40% of the total inner cardboard surface, more preferably less than 30% of total cardboard inner surface and in particular preferably less than 20% of the total cardboard inner surface.

It is essential that preferably no full-surface bonding takes place, wherein the entire surface is already an adhesion of an area of 50% and more understood.

Instead of or in addition to the spot bonding, a linear bonding can take place, which can run, for example, along the edges as well as on the surfaces. The bond lines can be horizontal or vertical or oblique, rectilinear, zigzag-shaped or wavy or even subject to no geometry. The individual lines can be arranged parallel to one another, running towards one another or without geometry and can extend along the side surface, be continuous or interrupted, and can also be supplemented by punctiform bonds.

It is preferred that the surface to which the above-described punctiform or linear bonding has been applied is the surface opposite the inside of the outlet part.

This type of punctiform and / or linear bonding differs significantly from a bonding of packaging containers from the prior art. For example, the Tetra-Pak ^® uses full-surface bonding. The packaging container according to the invention thus avoids this known disadvantage by saving adhesive resources and therefore leads to easily separable material combinations and fixations. Also, the packaging container is thus awarded a better recycling property, since at a selective bonding of the cardboard can be separated from the packaging container easier.

In a further preferred embodiment, depending on the fill level of the inner flexible bag, the bond can be successively released or successively released, whereby the inner flexible bag is not kept mechanically open, but can fold or roll up better and yet not adversely affect the stability of the entire packaging container is impaired by the reduced bonding surface, since the level and thus the mass of liquid or solid in the inner bag has become smaller and the remaining adhesive surface ensures the necessary stability.

Particularly important in the case of the packaging containers according to the invention is that they are stackable and have a dimensional stability which is sufficient to allow stacking of the packaging container, which reduces the space requirement to a minimum and saves transport costs.

Because of the very good stability and the very good stackability packaging containers in the form of a triangular prism are also preferred.

Another important aspect is the recyclability of the materials that make up the packaging container according to the invention. Through the use of only three materials (cardboard and two plastics) better recycling properties over packaging containers from the prior art, which are filled with liquid or powdered food, achieved. It should be emphasized that the packaging container according to the invention does not consist of a composite material, as used in packaging containers of the prior art. Although the inner flexible bag may consist of several materials or layers of material, which need not be separated and can be recycled together. Often, the plastic outlet can be disposed of together with the inner flexible bag.

By using only slightly different materials, not only is a packaging container provided with the packaging container according to the invention for, in particular, liquid or powdered foodstuffs, which can be introduced very well into the recycling cycle, but also a significantly more cost-effective production of the packaging container according to the invention can be achieved , Preferably, only one material or composite material is used for the inner flexible bag and also only one material for the outer jacket. After separation of the outer jacket and inner bag, two valuable substances are obtained, namely plastic and, as a rule, cardboard, which can be supplied to two recycling circuits. Apart from the adhesive and the outlet part of the packaging container according to the invention thus preferably consists of only two materials or types of material. These two materials or types of material are preferably a plastic and a cardboard.

This favorable combination of features of the packaging container presented here is surprising and gives the packaging container according to the invention superior functional properties over packaging containers produced according to the prior art. The packaging container according to the invention is stackable and provides optimum space utilization, is very easy to recycle, can be completely emptied and prevents the entry of air or liquid into the container, whereby the content remains longer lasting.

Thus, the present invention relates to packaging containers preferably for liquid Food in which the packaging container preferably does not fill with air when emptying. In addition, it is advantageous if the inner bag is preformed in the form of the outer jacket, ie in the form of the packaging container and thus in the fully filled state has a cuboid shape, cube shape, tetrahedral shape, pyramid shape, wedge shape, prism shape, etc. Finally is essential to the invention that there is no full-surface bonding or connection of the inner bag and outer jacket, coat and bag are not laminated together or that the bag forming material is not an inner layer of the outer shell and the material forming the bag easily from the consumer outer jacket can be separated.

• a) Bereitstellen eines Verpackungsbehälters gemäß einem der vorhergehenden Ansprüche;
• b) Ablösen des Auslassteiles und des an ihm befestigten inneren flexiblen Beutels von dem äußeren Mantel durch Ziehen an dem Auslassteil;
• c) Herausziehen des Auslassteiles und des an ihm befestigten inneren flexiblen Beutels aus dem äußeren Mantel, und
• d) getrennte Entsorgung des inneren flexiblen Beutels mit dem an ihm befestigten Auslassteiles sowie des äußeren Mantels.

In addition, the present invention relates to a method for the separate disposal of inner flexible bag and outer jacket, comprising the following steps:

• a) providing a packaging container according to one of the preceding claims;
• b) detaching the outlet part and the inner flexible bag attached thereto from the outer shell by pulling on the outlet part;
• c) pulling the Auslassteiles and attached to him inner flexible bag from the outer shell, and
• d) separate disposal of the inner flexible bag with attached to him outlet part and the outer shell.

• a) Bereitstellen eines befüllten, teilbefüllten oder nicht befüllten inneren flexiblen Beutels mit einer Auslassöffnung, eines äußeren Mantels und eines Auslassteiles;
• b) Festes Verbinden des Auslassteiles mit der Auslassöffnung des inneren flexiblen Beutels;
• c) Einführen des Verbundes aus Auslassteil und innerem flexiblem Beutel in den äußeren Mantel, wobei das Auslassteil im Bereich der Aussparung des äußeren Mantels zu liegen kommt;
• d) Punktförmiges oder linienförmiges Befestigen des inneren flexiblen Beutels an 1 bis 20 Stellen mit der Innenseite des äußeren Mantels;
• e) Befestigen des Auslassteiles im Bereich der Aussparung des äußeren Mantels.

Furthermore, the present invention also includes a method for producing and filling a packaging container as described above, comprising the following steps:

• a) providing a filled, partially filled or unfilled inner flexible bag having an outlet opening, an outer shell and an outlet part;
• b) firmly connecting the outlet part to the outlet opening of the inner flexible bag;
• c) introducing the composite of outlet part and inner flexible bag in the outer shell, wherein the outlet part comes to rest in the region of the recess of the outer shell;
• d) dot-shaped or line-shaped fastening of the inner flexible bag at 1 to 20 points with the inside of the outer shell;
• e) attaching the Auslassteiles in the region of the recess of the outer shell.

Following the procedure described above, the following step can optionally also be added:

• f) If the inner flexible bag was not filled or partially filled in step a), completely or partially fill the packaging container over the outlet part.

In a further preferred embodiment, an optional carrying handle forms part of the packaging system. In practice, the transport of several of the packaging containers described above proves to be cumbersome for the consumer. In the prior art, there are already outer packaging that summarize a variety of packaging units. In the field of liquid foods, the so-called six-pack is known. Here encloses an outer packaging made of cardboard, in rare cases made of plastic six in two groups of three next to each other arranged bottles. Depending on the embodiment, a more convenient transport is possible, sometimes this outer packaging serves only to ensure a minimum purchase quantity by the consumer. The disadvantages of such outer packaging are the incurrence of further waste material. The cardboard used for this or the plastic material can be supplied to the general recyclable material for this category at best. Furthermore, a tearing of the outer packaging is not always possible without problems.

This problem is solved for the embodiments described above by the carrying handle according to the invention. This flat part consists of a rectangular lower part, which is inserted between the arranged in a row of two packaging container, and a top that protrudes as an extension of the rectangular base on top of the two row of packaging containers. This top may also have the shape of a rectangle, the dimensions need not correspond to those of the rectangular base, or it may be trapezoidal. In the trapezoidal shape, the shorter parallel side is preferably at the top of the top. In the upper part of a recess is mounted, which forms an engagement portion, which allows by the insertion of fingers, the transport of the packaging system.

Suitable materials are hard plastics, hardboard, solid board, metal, metal alloys, wood, composites, fiberglass, rattan or combinations thereof. The upper part and the rectangular lower part need not be made of the same material. However, a uniform material is preferred. Embodiments of hard plastic are particularly preferred.

On the outer sides of the rectangular lower part, the carrying handle according to the invention has, at the level of each packaging container, a fastening region which enables a stable connection of the carrying handle to the packaging containers. At the same time, however, this attachment must allow by little effort a detachment of the individual packaging container of the carrying handle and thus of the whole carrying unit.

This attachment region may consist of a plurality of adhesive dots. These adhesive dots give the necessary stability, but are easily separable. In a preferred embodiment, each packaging container is connected to the carrying handle via two attachment areas mounted one above the other. Each of these attachment areas has a plurality of adhesive spots which are arranged in a circular or ellipsoidal manner. By simply tearing off the carrying handle, the separation takes place at these adhesive points. Alternatively, a thin continuous glue line or multiple thin linear circular or ellipsoid adhesive sections may be used. In these embodiments, a full-surface bonding is not conducive and therefore not preferred. After removal of all packaging container of the carrying handle can be reused either directly after a cleaning step to remove the remaining adhesives in a separate recycling process, or be supplied to its material corresponding recycling.

In a further preferred embodiment is a full-surface bonding of two superimposed circular or oval attachment areas between carrying handle and packaging container. At the edge of such a mounting area of the carrying handle is perforated. The distance of the perforation holes is designed such that a simple tearing on the carrying handle leads to a moderate break on this perforation line. The glued areas of the carrying handle thus remain on the packaging container, while in the carrying handle in these areas a sollmäßig recess is formed. After separation of all packaging containers, the carrying handle can be supplied to a material recycling appropriate to its material, but is not suitable for direct recycling.

In a preferred embodiment of the carrying handle is made of two mirror-image halves, which are connected to each other via a fold line or a hinge connection. Such a mode of production allows the adhesive needed for attachment to be applied only on one side of the carrying handle. The two mirror-image halves are brought in the next step by folding one half of the fold line or the articulation so congruent to lie one above the other, that the two coated with adhesive sides come to lie outside. In further embodiments, the two halves may be additionally interconnected by at least one further adhesive bond, a plug connection, a button connection, a folding mechanism, a stapling device or combinations thereof for the purpose of stabilization. Preference is given to a folding mechanism in which, in the engagement region of one or both mirror-image halves, the punch-out region of the cut-out region takes place only on three sides, while the side coming up during the carrying process is not punched out, but has a fold line or a hinge connection. Such an arrangement makes it possible that when superimposing the two mirror-image halves remaining in the engagement area material part of a half of the carrying handle can be bent by engagement with the opposite side of the carrying handle and folded up there. If there is also such a remaining material part on the opposite side, it will be flipped upwards. As a result, the two mirror-image halves are stabilized side by side. In an alternative embodiment, the first material part remaining in the engagement region comprises only one half of the recess area, wherein the parting line is perpendicular to the longitudinal axis of the recess area. In the mirror-image half of the support bracket is a complementary second material part in the region of the engagement, which is not covered by the first material part. This arrangement allows each of the first and second pieces of material to be guided and flexed upwardly by engagement of the mirror-image half to stabilize the handle.

In alternative embodiments, Velcro closures are used. The attachment portions described in the previous embodiments are each formed by a hook tape or an eyelet tape of a hook and loop fastener. Preference is given here square or rectangular attachment areas. It does not matter if the hook tape or the eyelet tape is attached to the carrying handle or the packaging container. An advantage of this embodiment is that the carrying handle can be reused directly. If the outer jacket of the packaging container is also made of plastic, the outer jacket and the part of the hook and loop fastener located on it can be disposed of together or optionally supplied to a recycling system.

In a further embodiment, the connection between the carrying handle and the packaging container takes place via magnetic forces. In this case, a permanent magnet is embedded in the mounting region of the carrying handle, while a magnetizable substance is located in the outer jacket of the packaging container in the corresponding attachment region. A slight pulling or moving the packaging container solves this from the carrying handle. An advantage of this embodiment, in turn, is that the carrying handle can be reused directly.

Another preferred group of embodiments of the packaging system according to the invention relates to the nature of the outer jacket. In these embodiments, the outer shell of at least two hard-shaped mirror-image molds or hard shells which are connected to one another via at least one hinge joint, while on the opposite side in mirror image joining the two hard shells on at least one shutter mechanism, the two hard shells releasably connected together be and thus form a hollow body. The at least two hard shells each have a flat bottom piece, which together form the bottom of the outer jacket and thus of the packaging container according to the invention. The area of these bottom pieces must be in proportion to the vertical dimensions of the hard shells in a relationship which allows stable storage in a vertical position in both the filled and deflated condition of the inner flexible bag. This so-designed outer jacket must also have a recess into which the outlet part and the associated inner flexible bag is inserted. This outlet part is located either in the upper or in the lower third of the respective hard shell. If the recess for receiving the Auslassteiles located at the top of the upright packaging container, the recess may be mounted centrally, ie when using two mirror-image hard shells in the middle of the centrally located edge each have a semicircular recess with the same radius, which complement when merging the two half-shells to a circular recess. When using more than two hard shells or two hard shells of different sizes, the recess changes accordingly. However, embodiments with two mirror-image hardshells are particularly preferred. Alternatively, the recess may also be mounted only on one side of the surface. In this case, therefore, the hard shells would be asymmetrical in the area of their top. Alternatively, there are also embodiments of the invention in which the outlet part is located at the bottom of the packaging container. These embodiments are exactly mirror images of those previously described. Furthermore, in some embodiments, the outlet part is mounted in the lower third of the packaging container. Preference is given to variants with an outlet tap.

Thus, the invention relates to a packaging container for pourable liquids, powders and granules comprising an inner flexible bag having an outlet opening, an outlet part and an outer jacket, the inner flexible bag being fixedly connected to the outlet part, the outer jacket the inner flexible bag encloses, the inner flexible bag is separably connected via the outlet part inserted into a recess with the outer shell, the outer shell consists of at least two hinged hard shells which are hinged together via at least one articulated joint and have at least one releasable locking mechanism.

Preferred is a packaging container for pourable liquids, powders and granules, comprising an inner flexible bag with an outlet opening, an outer jacket and an outlet part, wherein the inner flexible bag is not connected to the outer shell, the outer shell consists of two mirror-image hardshells which are connected to each other via at least one articulated connection on one side of the hard shells and via at least one releasable locking mechanism on the opposite side of the hard shells or via at least two releasable locking mechanisms, the outer sheath completely enclosing the inner flexible bag except for the area of the outlet part, the inner flexible bag is fixedly connected to the outlet part, and the inner flexible bag is reversibly attached to the lower end of the outer shell.

In further embodiments, it may be according to the invention also two or more recesses for inserting the Auslassteiles in the hard shells. These can be attached in any combination on the respective pages. However, it is preferred that the two or more recesses be on the same side. For example, in each case a recess can be embedded in the top of a hard shell. It is preferred to install in each recess exactly one outlet part with an associated inner flexible bag. However, it is conceivable from embodiments in which there are two or more outlet parts on an inner flexible bag, which are then inserted into the two or more recesses. Likewise, it is conceivable that one or more recesses are not used.

The outlet part can be produced as in the previously described embodiments, preferably with an outer jacket made of cardboard. Again, embodiments are preferred with a valve that allows only the outlet of the contents of the packaging container, but does not allow air, gas or liquid in the opposite direction enter into the inner bag.

The materials for the hard shells must have sufficient stability and wear resistance. Suitable materials are plastics, composite materials, metal, metal alloys, hardboard, wood, glass, stone, ceramics, Porcelain, ceramides, pressed board, cellulose, leather, hardened bast, rattan, natural materials, fabrics and combinations thereof.

In a particularly preferred embodiment, the hard shells are made over the entire surface of plastic or plastic. Suitable plastics are polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polyesters, polystyrene, polyamides, polycarbonates and other polymers which preferably do not contain halogens.

Basically, there are no size specifications for the hard shells according to the invention. However, preferred are sizes that can be used for household use or commercial delivery quantities. Optionally, product information, advertising, or a two- or three-dimensional design may be affixed to the exterior of the hardshell.

In a preferred embodiment, one or two of the side surfaces of the hard shells have a handle which is suitable for facilitating a removal operation by engagement of fingers. In industrial applications, a handle or a handle edge can be used, which can serve as a starting point for a gripping arm.

The articulation between the hard shells may be fixed or separable. In the latter case, so the hardshells can be separated, or optionally replaced or recombined with different design.

As joint components all common possibilities come into consideration. The joint components can be made of the above-mentioned materials as the flat parts. Preferably, flat parts and joint components made of the same material. The joint components can only limited by the thickness of the flat parts to be rotated approximately 360 °, or contain locking devices that allow rotation to approximately 180 ° or 90 °.

The opposite releasable locking mechanism may be a push button, a flap, a clip, a slide-in tab, a plug connection, a click connection, a hook connection, a snap lock, a screw connection, an adhesive connection or a seam.

This locking mechanism can be unidirectional or parallel (bidirectional).

The invention also includes a closure mechanism in which at least one articulated connection consists of at least one return spring. In this case, no such device is attached to the edges of the hard shells in which there is a connection in the previously described embodiments. For each return spring, the spring constant is chosen such that on the one hand only a small amount of force to open the hardshells is necessary, on the other hand, the hard shells after loading or removal of the inner flexible bag again tightly closed and thus ensure safe transport and safe use of the packaging container is.

In some embodiments, said hinge connection may also be replaced by a releasable closure type as previously described. In this case, the hard shells can be completely separated. For these embodiments, it is preferred that the releasable closures between the hardshells are the same.

In further preferred embodiments, hook-and-loop fasteners or magnetic connections are used as described above for the carrying handle.

In further variants, the above-described articulated connection is in each flat-manufactured upper part or lower part of the packaging container. In this case, the side parts are fastened to each other via two of the releasable closure mechanisms as described above. Again, it is preferred that the releasable locking mechanisms are the same. The recess for receiving the Auslassteiles in the hard shell is then preferably located on the side opposite the hinge connection or side.

Optionally, a seal made of plastic or paper can be attached via the at least one releasable locking mechanism. In this way it can be ensured that no replacement or removal of the inner flexible bag was made between filling or assembly by the producer or by a middleman. Thus, such a seal can be used as an original certificate.

The hard-shell packaging containers may be egg-shaped, eggplant-shaped, pear-shaped, kidney-shaped, bell-shaped, spherical, cylindrical, conical, conic, cuboid, pyramidal, or combinations thereof.

Optionally, any shapes can be made on recesses on the side panels. This material can be saved in the hard shells and the view of the interior of the hollow body with the inner flexible bag is possible. Furthermore, can According to the invention, the surface of the side parts are varied, for example by a circumferential waveform. This can be done over the entire surface or only on a certain section of the side parts. An advantage arises from the better accessibility in a household use.

The side parts of the hard shells in these embodiments may, if they are not full-surface, consist of a frame having vertical, horizontal or diagonal struts each in a number of 0-10, preferably 1-5, more preferably 2-3, or has a grid structure. These struts can not only be linear, but also arbitrary curves, circles, waves, zigzag shapes and the like.

The outlet part with the attached to him inner flexible bag must be inserted into the space provided in the hard shell. Here, all the usual clamping and locking mechanisms are conceivable. If the packaging container has only one recess for receiving the outlet part, d. H. Each hard shell has a mounted at the edge of the upper half-circular recess, the outlet part is inserted into one of the two semicircular recesses. Each edge of the Auslassteiles comes ring-shaped directly above and lie directly under the top. When closing the two hard shells, the inner flexible bag is clamped between the two hard shells. The two annular edges above and below the tops of the hard shells prevent the inner flexible bag from being unintentionally pulled out of or falling out of the outer sheath, or that the outlet portion from falling into the interior of the packaging container, particularly at an advanced emptying condition.

Are two or more recesses for receiving the Auslassteiles on the hard shells of the packaging container, so are located at the contact edges of the tops of the hard shells a corresponding number keyhole-shaped openings. Here, the outlet part comes into the central circular part of the recess, wherein the narrowest point of the tapered access part of the recess, which lies at the edge of the central circular portion of the recess, acts as a clamping mechanism. By a small amount of force, the outlet part can be attached in this way or removed later.

According to the invention, the inner flexible bag must be fastened to one or both hard shells on the side opposite the outlet part, in order to allow optimum emptying of the contents of the bag. This attachment is preferably an easy to perform and intuitively understandable process.

In a preferred embodiment, one or both flat shells have a hooking device for the adjacent side of the inner flexible bag. Here, the hook on the flat part and the eyelet on the inner flexible bag, or the eyelet on the flat part and the hook on the inner flexible bag can be located.

In a further preferred embodiment, the underside of the inner flexible bag is such that it comprises a squeeze or a weld. With this seam, the inner flexible bag is inserted into a guide rail located on the adjacent side of the flat shells or flat shells. Preferably, the guide rail is mounted on the hard shells, so that when merging the hard shells, both halves of the guide rail form a continuum. This guide rail holds the inner flexible bag in position and prevents the inner flexible bag from inadvertently slipping out of the track during transport and / or use. This guide rail may be a simple clamping device or include an additional, actively operated clamping mechanism such as a thumbscrew or a clamp switch. In a particularly preferred embodiment, the inner flexible bag below the said seam has sufficient material which projects somewhat from the seam in the form of two strips. With this area it is introduced from the side in such a rail, wherein the seam comes to lie at a bottleneck in the profile of the guide rail. This prevents unintentional slipping out.

In a further embodiment, the inner flexible bag is attached via a Velcro on the side facing away from the outlet part on the adjacent surface of one or both hard shells. It does not matter if the hook tape is attached to the inner flexible bag and the eyelet band is attached to the hard shell or vice versa.

In a further preferred embodiment, a permanent magnet is located in the lower parts of the hard shells, while a magnetizable material is located in the adjacent side of the inner flexible bag. The magnetic forces generated by contacting enable the inner flexible bag to be maintained in the desired stable position within the folded outer shell. At the same time, however, these magnetic forces can be overcome by a slight force of a user, another person or a device, which makes the trouble-free Detachment of the inner flexible bag from the said hard shells allows.

Even with the use of hard shells, in other embodiments, an inner flexible bag can be used whose volume in the filled state is significantly smaller than the outer sheath. Optionally, the inner flexible bag is attached via a special bracket on the outer jacket here as well. According to the invention, a correspondingly large hooking device can be used for this purpose.

Advantages of using hardshells as the outer jacket of the packaging container according to the invention is the robustness and ease of mounting and removal of the inner flexible bag.

The use of hard shells is also particularly suitable for a recycling system which forms part of the packaging system according to the invention. After removal of the inner flexible bag, the hard shells are already separated on the releasable locking mechanism. While the inner flexible bag can be supplied for suitable recycling, the hard shells can be reused immediately. As a rule, no cleaning step is necessary. Otherwise, the hard shells can also be recycled. For this purpose, collection points at a dealer and / or producer of the inner flexible bags of a particular content are available. There, the hard shells can be equipped on site with a new inner flexible bag, or can be spent collected at such a place.

If the hard shells have rounded side parts, these can be stacked particularly easily and space-saving. Connected via the joint, at least two equally fast growing piles form side by side. If the hard shells have also been separated at the hinge connection, they can of course also be stacked on one or more heaps.

This is particularly suitable for collection points in hypermarkets and for industrial companies, where many hardshells incurred. Stacked into each other, these can be easily transported to their destination.

• a) Bereitstellen eines Verpackungsbehälters gemäß einem der vorhergehenden Ansprüche;
• b) Aufklappen der Hartschalen des äußeren Mantels;
• c) Herausziehen des Auslassteiles und des an ihm befestigten inneren flexiblen Beutels aus der jeweiligen Hartschale, und
• d) getrennte Entsorgung des inneren flexiblen Beutels mit dem an ihm befestigten Auslassteiles sowie des äußeren Mantels.

These embodiments with the use of outer shell hard shells also refer to a separate inner bag and outer jacket disposal method comprising the following steps:

• a) providing a packaging container according to one of the preceding claims;
• b) unfolding the hard shells of the outer shell;
• c) pulling the Auslassteiles and attached to him inner flexible bag from the respective hard shell, and
• d) separate disposal of the inner flexible bag with attached to him outlet part and the outer shell.

• a) Bereitstellen eines befüllten, teilbefüllten oder nicht befüllten inneren flexiblen Beutels mit einer Auslassöffnung, eines äußeren Mantels und eines Auslassteiles;
• b) Einsetzen des Auslassteiles in die Auslassöffnung des inneren flexiblen Beutels;
• c) Einführen des Verbundes aus Auslassteil und innerem flexiblem Beutel in den äußeren Mantel, wobei das Auslassteil im Bereich der Aussparung der besagten Hartschalen zu liegen kommt;
• d) Befestigen der dem Auslassteil abgewandten Seite des inneren flexiblen Beutels an der der Aussparung des äußeren Mantels gegenüberliegenden Seite des äußeren Mantels; und
• e) Verschließen der Hartschalen.

Furthermore, these embodiments relate to a method for producing and filling a packaging container, comprising the following steps:

• a) providing a filled, partially filled or unfilled inner flexible bag having an outlet opening, an outer shell and an outlet part;
• b) inserting the outlet part into the outlet opening of the inner flexible bag;
• c) inserting the composite of outlet part and inner flexible bag in the outer shell, wherein the outlet part comes to lie in the region of the recess of said hard shells;
• d) attaching the side of the inner flexible bag facing away from the outlet part to the side of the outer jacket opposite the recess of the outer jacket; and
• e) sealing the hard shells.

• f) Falls der innere flexible Beutel bei Schritt a) nicht befüllt oder teilbefüllt war, vollständiges oder teilweises Befüllen des Verpacklungsbehälters über das Auslassteil.

Optionally, the following step may follow the procedure described above:

• f) If the inner flexible bag was not filled or partially filled in step a), completely or partially fill the packaging container over the outlet part.

In a further preferred embodiment, the outer jacket is made of a plurality of flat parts. These flat parts can be formed by suitable folding into a suitable outer jacket for the packaging container according to the invention. This outer sheath encloses the inner flexible bag largely completely in the folded state. At least one of these flat parts has a recess which is suitable for securing the outlet part and the inner flexible bag fastened to it to it or alternatively for inserting it in the recess. The adjoining in the unfolded state flat parts are movable against each other either by a fold or by at least one hinge member. The flat part which is located distally to the outlet part in the folded state has a fastening device for the inner flexible bag. Furthermore, the flat parts in the folded state, but not come to rest in the unfolded state, at least one matched closure device, which makes it possible to leave outer jacket in the folded form and stabilize the entire packaging container. The inner flexible bag is in turn firmly connected to the outlet part.

The term flat parts describes the side parts, the bottom and the top cover of the outer shell of the packaging container according to the invention.

Deployed state in this context means that the flat parts are folded so that they form a two-dimensional structure or a plane. In this state, the flat parts coming next to each other are held together by a fold or a hinge component.

Folded state in this context means that the flat parts are folded so that they form a three-dimensional structure or a space body, which has the shape of the packaging container according to the invention.

The flat parts in these embodiments can be full-surface, consist of a frame having vertical, horizontal or diagonal struts each in a number of 0-10, preferably 1-5, more preferably 2-3, or has a lattice structure.

These struts can not only be linear, but also arbitrary curves, circles, waves, zigzag shapes and the like.

The flat parts can according to the invention of cardboard, cardboard, paper, fabric, edible materials such as corn or soybeans, bamboo, wood, hardboard, plastic, cellulose, glass, rattan, a natural material, a textile material, leather, a composite material, metal or consist of a metal alloy.

In a particularly preferred embodiment, the flat parts are made over the entire surface of plastic or plastic. Suitable plastics are polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polyesters, polystyrene, polyamides, polycarbonates and other polymers which preferably do not contain halogens.

Likewise, natural polymers such as starch, cellulose and their derivatives are suitable for this purpose.

In a further embodiment, the flat parts in their longitudinal axis or in its transverse axis on a Sollfaltlinie or consist of two at least one additional, as described below articulated connection. This additional subdivision can serve the better stackability or easier transport of the unfolded outer jacket. The Sollfaltlinie or articulation are preferably horizontal in the amount of half the width or length of the flat parts.

According to the invention, however, the flat parts may also comprise two or more desired fold lines. The person skilled in the art can readily attach these with his or her expertise or modify existing embodiments accordingly, without deviating from the idea of the present invention.

According to the invention contains at least the flat part, which is provided for the upper cover of the packaging container, a recess for fixing the Auslassteiles and the associated with him inner flexible bag. This recess may be circular or have access to an accessible on the loading side of the top cover of the packaging container, whereby an assembly can be made via this side opening. Such a recess is preferred in the form of a keyhole. Here, the outlet part comes into the central circular part of the recess, wherein the narrowest point of the tapered access part of the recess, which lies at the edge of the central circular portion of the recess, acts as a clamping mechanism. By a small amount of force, the outlet part can be attached in this way or removed later.

However, the outlet part can also be attached in other embodiments via a snap closure or a lever. Alternatively, an adhesive connection or a hook and loop fastener according to the invention.

As joint components all common possibilities come into consideration. The joint components can be made of the above-mentioned materials as the flat parts. Preferably, flat parts and joint components made of the same material. The joint components can only limited by the thickness of the flat parts to be rotated approximately 360 °, or contain locking devices that allow rotation to approximately 180 ° or 90 °.

On the side surfaces of the flat parts, which do not come to lie next to each other in the unfolded state, but in the folded state, there are closure devices which stabilize the folded and loaded with an inner flexible bag packaging container in shape. For this purpose, all common closure devices are conceivable. Preference is given to connectors, Einhakvorrichtungen, snap locks and magnetic locks, Velcro fasteners and any combinations thereof. Particularly preferred are connectors. The attachment of the respective complementary parts of a closure device to the Side surfaces of the flat parts according to the invention in all combinations conceivable.

The inner flexible bag and the outlet part have the same characteristics and variation possibilities in these embodiments as in the previously described embodiments.

In a preferred embodiment, the flat part opposite the outlet part has a hooking device for the adjacent side of the inner flexible bag. Here, the hook on the flat part and the eyelet on the inner flexible bag, or the eyelet on the flat part and the hook on the inner flexible bag can be located.

In a further preferred embodiment, the underside of the inner flexible bag is such that it comprises a squeeze or a weld. With this seam, the inner flexible bag is inserted into a guide rail which is located on the inside of the lower cover provided as the flat part of the outer shell. This guide rail holds the inner flexible bag in position and prevents the inner flexible bag from inadvertently slipping out of the track during transport and / or use. This guide rail may be a simple clamping device or include an additional, actively operated clamping mechanism such as a thumbscrew or a clamp switch. In a particularly preferred embodiment, the inner flexible bag below the said seam has sufficient material which projects somewhat from the seam in the form of two strips. With this area it is introduced from the side in such a rail, wherein the seam comes to lie at a bottleneck in the profile of the guide rail. This prevents unintentional slipping out.

In a further preferred embodiment, a permanent magnet is located in this flat part, while a magnetizable material is located in the adjacent side of the inner flexible bag. The magnetic forces generated by contacting enable the inner flexible bag to be maintained in the desired stable position within the folded outer shell. At the same time, however, these magnetic forces can be overcome by a slight force of a user, another person or a device, which allows the easy detachment of the inner flexible bag from said flat part.

Even with the use of foldable flat parts, an inner flexible bag can be used in other embodiments, the volume of which is significantly smaller in the filled state than the outer shell. Optionally, the inner flexible bag is attached via a special bracket on the outer jacket here as well. According to the invention, a correspondingly large hooking device can also be used here.

One application of these embodiments to an outer sheath of foldable panels is use in an integrated recycling system. Here, the contents, such as a drinkable liquid such as milk or orange juice, sealed in the inner flexible bag provided. This inner flexible bag is inserted into the outer shell so that said flat parts are folded around the inner flexible bag. The inner flexible bag is in this case suspended or fastened via the outflow part to the recess of the flat part of the outer jacket which is provided as the upper cover. At the bottom, the inner flexible bag is attached to the inside of the lower cover provided as the flat part of the outer shell. The closure devices of the outer shell are closed, whereby the packaging container is stabilized in shape and can be used by a user. When no more contents can be removed from the packaging container, the outer jacket and the inner flexible bag are separated by draining the steps described for assembly. The outer jacket is reused in the same form. Optionally, the outer jacket is cleaned as needed, after each use or at fixed intervals. The inner flexible bag with the outlet part are fed to a suitable recycling. An advantage of using mismatched sizes of inner flexible pouch and outer shell is that only one size of hard shell or foldable flat is needed to bring different volumes of an inner flexible pouch onto the market. The recycling system for the outer jacket is accordingly simplified and possibly easier standardized.

The assembly and disassembly of the packaging container according to the invention may be carried out by the end user, the producer of the filled inner flexible bags, an intermediary or specialized personnel or combinations thereof.

Both in the use of hard shells as well as flat parts as an outer jacket, this recycling system can be combined with a deposit system according to the invention, the end user when acquiring an assembled and filled packaging container a The deposit will be refunded as soon as he returns the unfolded outer jacket and / or the emptied inner flexible bag to a designated location. Payment and refund of the deposit fee can be made via cash, a credit card, a specially created transfer card, advance deposit chips or billing.

• a) Bereitstellen eines äußeren Mantels und eines inneren flexiblen Beutels, der mit dem Auslassteil verbunden ist;
• b) Einsetzen des Auslassteiles und des mit ihm verbundenen inneren flexiblen Beutels in die entsprechende Vorrichtung an der Aussparung eines Flachteils;
• c) Bestimmungsgemäße Verwendung des Verpackungsbehälters;
• d) Entnahme des Auslassteiles und des mit ihm verbundenen inneren flexiblen Beutels aus der entsprechende Vorrichtung an der Aussparung eines Flachteils;
• e) Entsorgung des Auslassteiles und des mit ihm verbundenen inneren flexiblen Beutels;
• f) Entfaltung des äußeren Mantels; und
• g) Wiederverwendung des äußeren Mantels.

Accordingly, the present invention also relates to a method for assembling and separating a packaging container, comprising the following steps:

• a) providing an outer jacket and an inner flexible bag connected to the outlet member;
• b) inserting the Auslassteiles and its associated inner flexible bag in the corresponding device to the recess of a flat part;
• c) Intended use of the packaging container;
• d) removal of the outlet part and the associated with him inner flexible bag from the corresponding device to the recess of a flat part;
• e) disposal of the outlet part and the inner flexible bag connected to it;
• f) unfolding of the outer shell; and
• g) Reuse of the outer jacket.

Description of the figures

1 shows an inner flexible bag according to the invention with permanently connected outlet part.

2 shows the production and disposal of the packaging container according to the invention.
a) outer jacket. In this embodiment, the outer jacket is made of solid or corrugated cardboard.
b) Inner flexible bag with firmly connected outlet part. In this embodiment, the inner flexible bag is a tubular bag with liquid contents.
c) The inner flexible bag with fixed outlet part, inserted into the outer jacket. The red arrow points to a red dot representing the spot bonding at the bottom of the outer shell.
d) Principle of Disposal: By pulling on the outlet part in the direction of the arrow, it is separated from the bond at the bottom of the outer shell and from the recess in the cover of the outer shell, together with the firmly connected inner flexible bag, and pulled out through the recess. Both components can now be disposed of separately.

3 shows three possible embodiments of the packaging container according to the invention in side view.

4 shows a possible form of Auslassteiles with an inner valve.

5 shows a possible form of a Auslassteiles, which is provided with a closure, in particular a resealable screw cap.

6 shows a possible outlet part with a thread and without a valve.

7 shows another view of a Auslassteiles with a thread and without a valve.

8th shows a carrying handle with both sides attached to him packaging containers.

9 shows a carrying handle with the intervention for transport and two overlapping attachment areas for three packaging containers. For each attachment area, the ellipsoidally arranged adhesive dots are shown.

10 shows a packaging container after removal from the carrying handle. The two fully adhered mounting areas arranged one above the other have been broken out of the carrying handle along the perforation line and remain on the packaging container.

11 shows a spread handle, which is made of two mirror-image halves. The attachment areas with the adhesive dots are only attached to one side. The incision lines are shown, which allow the material part in the engagement area to be folded respectively ipsilaterally or contralaterally.

12 shows packaging containers in which the outer jacket consists of hard shells. The mirror-image hard shells are connected on one side via a hinge connection. The opposite sides of the two hard shells are connected to each other at Aneinderfügen via a push button. The inner flexible bag can be inserted via the outlet part in the space provided in the hard shells. At the bottom left is shown how the two hardshells connected via the articulated connection can be stacked.

13 shows a variant of the hard shells 12 , Here is the hinge connection between the two hard shells on the underside of the hard shells. Such designed hardshells can be equipped analogously and stored in each other after use.

14 shows a further variant of the hard shells 12 , Here, the packaging container is equipped with two inner flexible bags. Accordingly, each of the two hard shells has its own recess for receiving the Auslassteiles in their upper part, in which the respective inner flexible bag is used.

15 shows further possible embodiments for the hard shells according to the invention.

16 shows a foldable outer jacket for a packaging container according to the invention in the deployed state. In this embodiment, the outer jacket in the folded state will take the form of a cuboid. In the unfolded state contiguous flat parts are movable by joint components against each other. The protruding from the side surfaces of the flat parts connectors form with the matched holes mounted in the flat parts that come to rest in the folded state, a possible closure device. At the provided as an upper cover flat part, a recess is attached to which the outlet part can be used with the firmly connected inner flexible bag.

17 Figure 3 shows in three dimensions how a foldable outer jacket can be transferred from the deployed state to the folded state.

18 shows in a sequence from left to right, how the inner flexible bag can be inserted into the foldable outer shell. If one reads the image sequence from right to left, it can be seen how, after use, the packaging container can be decomposed again into its two components, which in turn can be fed to a separate recycling.

19 shows a packaging container with zusammensteckbarem outer jacket, wherein the individual packaging container can in turn be plugged together and z. B. result in the six pack shown. The hook-shaped connectors are in 19 clearly visible.

20 shows a packaging container with zusammensteckbarem outer jacket, wherein the individual packaging container can in turn be plugged together and z. B. result in the six pack shown. The screw-head connectors are in 19 clearly visible.

21 shows a single packaging container from the six-pack according to 20 ,

22 shows a screw-head connectors as in the packaging container according to 21 as well as the six pack according to 20 is used.

Examples

Example 1:

A packaging container for 1 L of milk is described which consists of a tubular bag and an outer jacket.

The tubular bag is made of polyethylene and is welded so that it already has approximately the shape of a cuboid with the edge lengths 9.5 cm × 5.5 cm × 19.2 cm and a filling volume of 1 L. Located on the top center and about 1.5 cm from the shorter edge of the spout is optional with valve.

The outer shell is made of cardboard and has the edge lengths 10 cm × 5.5 cm × 19.5 cm.

The tubular bag is glued to the bottom of the outer shell with two adhesive strips, which are arranged like a cross on the center of the bottom surface. In addition, the spout opening of the tubular bag is pulled through an opening in the outer carton and held by a rubber ring from both sides of the carton. If the tubular bag is completely emptied, it can be pulled out at the spout opening through the corresponding recess in the outer carton, whereby under the tension the adhesive dissolves on the bottom of the outer carton and the adhesive largely remains on the tubular bag. Cardboard and tubular bags can be easily separated and recycled.

Example 2:

A packaging container for 11 mineral water is described, which consists of an inner flexible tubular bag and an outer jacket of two mirror-image hardshells.

The tubular bag is made of polyethylene terephthalate and is welded so that it already has approximately the shape of a cuboid with the edge lengths of 9.5 cm × 5.5 cm × 19.2 cm and a filling volume of 1 L. Located on the top center and about 1 cm from the shorter edge of the spout is optionally with valve.

The outer shell is made of eggplant-shaped hard polycarbonate shells and has a height of 19.5 cm.

The inner flexible shell has a hook and one of the two hard shells has an eye for hooking the inner flexible shell.

The tops of the two hard shells have at their contact line in each case a semicircular recess with the same radius.

The two hard shells are attached to each other via a push button, wherein the one hard shell, the upper part and the other hard shell has the lower part of the push button.

Example 3:

A packaging container for each 1 L of vinegar and 1 L of oil is described, which consists of two inner flexible tubular bags and an outer shell of two mirror-image hardshells.

A tubular bag is made of polyester and the other made of polyurethane. They each have an edge length of 9.5 cm × 5.5 cm × 19.2 cm and a filling volume of 1 L. On the top center of each hard shell and about 1.3 cm from the shorter edge away is a spout opening optional with Valve.

The outer shell consists of cylindrical glass hard shells and has a height of 19.5 cm.

The two hard shells of the inner flexible shell each have a guide rail, in each of which the pressure seam of the inner flexible bag are jammed.

The tops of the two hard shells each have at their contact line a keyhole-shaped recess into which the respective outlet part of the inner flexible bag is inserted and clamped.

The two hard shells are attached to each other via a hook and loop fastener, one hard shell having the hook tape and the other hard shell the eyelet tape.

Example 4:

A packaging container for 1 L of orange juice is described, which consists of a tubular bag and an outer collapsible jacket, which is reused in the deposit system.

The tubular bag is made of polypropylene and is welded so that it already has approximately the shape of a cuboid with the edge lengths 9.5 cm × 5.5 cm × 19.5 cm and has a capacity of 1 L. On the top center and Approx. 2.0 cm from the shorter edge, the spout is optionally equipped with a valve.

The outer collapsible coat is made of hardboard and has the shape as in 8th shown. The edges of the side, bottom and top surface are designed so that they are movable into one another and, when fully assembled, result in a solid and stable parallelepiped with the edge lengths 10 cm × 6 cm × 20 cm. If two parts of the outer collapsible jacket inserted into one another, so they can be moved along the longitudinal axis of the connector. The movement patterns and the way of assembling are clear 9 , where in 9 Shutters are shown and the embodiment described here uses movable nested perforations, wherein a spherical or hemispherical design can be inserted into a corresponding recess of the counterpart and vice versa, so that ultimately also results in a Schanierfunktion.

The top of the outer collapsible shell has a recess into which the spout opening of the tubular bag provided with a collar can be suspended, clamped or pushed in as in 10 shown. About this recess the tubular bag is held firmly in the outer collapsible jacket.

So that the tubular bag can be completely emptied is also on the inside of the bottom surface, a simple clamping device, wherein the lower weld of the tubular bag can be clamped so that the tubular bag does not coincide when emptying and can be completely empty.

After complete emptying of the tubular bag, the outer collapsible coat can be opened again and the tubular bag removed and disposed of. The outer collapsible jacket may be reused for a new filled tubular bag or preferably returned in the deposit system.

Another advantage with respect to the outer collapsible shell is that it can be fully unfolded for return transport and transported as a flat folding pattern, which saves space and is very environmentally friendly due to the reuse in the deposit system and contributes to waste prevention, because only the tubular bag must be disposed of.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 69910428 T2 [0003]
• EP 0746507 B1 [0006]

Claims (10)

A packaging container for pourable liquids, powders and granules comprising an inner flexible bag having an outlet opening, an outlet part and an outer jacket, the inner flexible bag being fixedly connected to the outlet part, the outer jacket enclosing the inner flexible bag, the inner one flexible bag is separably connected via the outlet part used in a recess with the outer shell, the outer shell consists of at least two hinged hard shells, which are hinged together via at least one hinge connection and have at least one releasable locking mechanism. The packaging container according to claim 1, wherein the shape of the inner flexible bag in the filled state follows the contours of the outer shell and fits tightly against the inside of the outer shell and / or wherein the inner flexible bag in the region of the outlet opening with the outlet part and the outlet part with connected to the outer jacket. The packaging container according to one of the preceding claims, wherein the outer jacket is egg-shaped, eggplant-shaped, pear-shaped, kidney-shaped, bell-shaped, spherical, cylindrical, conical, conical, cuboid, pyramidal or a combination thereof and / or wherein said outer shell shells are made Polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polyester, polystyrene, polyamides, polycarbonates or other polymers, which preferably contain no halogens, are manufactured and / or wherein the unfolded hard shells are stackable. The packaging container according to one of the preceding claims, wherein the outlet part is provided with a valve function which allows only the outlet of the contents, but not the entry of air, gases or liquid into the packaging container. The packaging container according to one of the preceding claims, wherein the releasable locking mechanism of the two said hard shells is a push button, a flap, a clip, a push-in tab, a plug connection, a hooking connection, a snap lock, a screw connection, an adhesive connection or a seam or wherein the releasable Locking mechanism is at least one return spring as a hinge connection. The packaging container according to one of the preceding claims, wherein the at least one outlet part is attached to the top of said hard shells or wherein the outlet part is mounted in the lower or upper third of the packaging container and wherein the outlet part is a screw cap, a lid, a resealable cap or a Outlet tap is. The packaging container according to one of the preceding claims, wherein the inner flexible bag is reversibly attached to the lower end of the outer shell and / or wherein the fastening device for the inner flexible bag on the opposite side of the outer shell to the outlet part, a clamping device with a guide rail or a Einhakvorrichtung is. The packaging container according to one of the preceding claims, wherein the outer jacket has at least two recesses for receiving a Auslassteiles, each equipped with its own inner flexible bag and the said at least two recesses each with a keyhole-shaped recess at the contact edge of the upper part of the hard shells the flexible inner bag can be fitted. A method of manufacturing and filling a packaging container according to any one of claims 1-8, comprising the following steps a) to e): a) providing a filled, partially filled or unfilled inner flexible bag having an outlet opening, an outer jacket and an outlet member; b) inserting the outlet part into the outlet opening of the inner flexible bag; c) inserting the composite of outlet part and inner flexible bag in the outer shell, wherein the outlet part comes to lie in the region of the recess of said hard shells; d) attaching the side of the inner flexible bag facing away from the outlet part to the side of the outer jacket opposite the recess of the outer jacket; and e) sealing the hardshells; or comprising the following steps a) to f): a) providing a filled, partially filled or unfilled inner flexible bag having an outlet opening, an outer jacket and an outlet part; b) inserting the outlet part into the outlet opening of the inner flexible bag; c) inserting the composite of outlet part and inner flexible bag in the outer shell, wherein the outlet part comes to lie in the region of the recess of said hard shells; d) attaching the side of the inner flexible bag facing away from the outlet part to the side of the outer jacket opposite the recess of the outer jacket; and e) closing the hardshells and f) if the inner flexible bag was unfilled or partially filled in step a), wholly or partially Filling the packaging container via the outlet part. A method of assembling and separating a packaging container according to any one of claims 1-8, comprising the following steps: a) providing an outer jacket and an inner flexible bag connected to the outlet member; b) inserting the Auslassteiles and its associated inner flexible bag in the corresponding device to the recess of a flat part; c) Intended use of the packaging container; d) removal of the outlet part and the associated with him inner flexible bag from the corresponding device to the recess of a flat part; e) disposal of the outlet part and the inner flexible bag connected to it; f) stacking the half-shells of the outer shell; and g) Reuse of the outer jacket.

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