DE2609519A1 - Packing container with rigid outer casing - has inserted flexible inner container attached to outer casing before filling with goods - Google Patents

Abstract

Packing container consists of a rigid outer casing from cardboard or plastic or metal and an inner container from a flexible material such as paper or plastic or metal inserted in the outer casing. The inner container is produced in one piece from a semi-finished material and is attached to a part of the outer casing. The discharge opening of the packing is inside a band shaped circumferential flange (10). The inner container is attached to the outer casing before it is filled with goods. The packing has a re-usable sealing cover (16) which is preferably shaped to form a sealing contact with the circumferential flange (10) and is surrounded by an open part of the outer casing.

Description

An outer, supporting cover and a container placed inside

Packaging composed of flexible material.

The present invention has set itself the task of packaging of the type of outer, supporting shell and having a container placed therein made of flexible material, which is suitable for liquid, semi-liquid, powdery, semi-solid and solid goods are provided.

In Swedish patent applications 73 126 83-1 and 73 126 S4-9 packaging with a structure according to the above-mentioned principle is described. The first mentioned application relates to packaging that is used for storage of goods of the aforementioned type is intended under normal pressure conditions, where, on the other hand, the latter application addresses packaging that is suitable for both the Storage of goods is adapted that give off gases during storage and this also causes overpressure in the packaging for storage of goods under vacuum. When storing coffee, the safekeeping is under Vacuum is often desirable, but roasted coffee develops gases, which is why with the time overpressure can arise in the packaging, even if too The beginning of the vacuum prevails in the packaging. A package after the latter Registration is therefore well suited for use as coffee packaging. As a consequence with the title of the patent application packaging is intended for goods, where overpressure can occur.

Previously known packaging with an inner flexible container their containers are more or less loosely housed in an outer supporting envelope in the outer containers had been made more difficult by Jes Entleuren at VeUpickghgen is. In those cases in which a fixation of the inner container to the outer shell has happened, this fixation was not arranged with the intention of avoiding the To facilitate emptying of the packaging. The in the aforementioned patent applications In contrast, the packagings described have the flexible inner containers and the outer supporting sheaths formed in such a way and in relation to each other fixed that the emptying of the packaging is facilitated. The concept of facilitating Emptying also includes the possibility of gradually removing the packaging from the stored Well emptying (of the goods) and doing so in a simple and effective manner to close the packaging each time goods are removed.

Reclosing the items described in the previous applications Packaging is made possible by the fact that the outer supporting shell of the packaging is firmly connected to the mouth of the opening with the inner flexible container. A lid made of z. B. plastic, which is tight against the opening part of the outer shell this construction also closes the inner container.

It is also a distinctive feature of the packaging according to the above Registrations that the inner containers are filled before moving into the outer supporting ones Shells are spent. tIn certain application examples, however, it turns out to be as inexpedient to use this procedural white.

This can be the case, for example, when the packaging is used for Storage of goods that do not retain their shape are to be used, z. a.

Liquids, or where the manufacturer of the goods in the packaging should be kept to use existing equipment when filling them desires that is designed for filling completely finished containers.

The present invention relates to a package which is used in when filled, the same properties as the packaging according to the above cited descriptions according to patent applications 73 126 83-1 and 73 126 84-9 and their properties when emptying match the properties of the container which are designed according to the aforementioned registrations, but where the packaging only is then filled after the inner container is united with the outer supporting shell has been.

The packaging can be decidedly parallelepiped and the one wall side can represent the opening of the packaging. Here the Inner container attached to the mouth of the opening in such a way that a the sides of the inner container at this mouth forms a lid disc and easily can be cut out with a knife. Here one wishes that this side of the inner container is preferably a flat surface without bumps. Folds or flaps having. The opening of the packaging is combined with a lid made of Y.S plastic, which, after the packaging has been opened, closes it tightly. The shaping the opening part can vary. You can, for example, completely flat walls or it can be provided with an inwardly directed circumferential flange. In the latter case, it can often be useful to counteract the inner container attach. This makes it easier to open the container, especially when if this is done by cutting out the cover disc with a knife will.

It is characteristic of the invention that the packaging is such Has been ordered that it is filled through part of the packaging, which then represent the bottom in the finished and filled packaging will. So that the inner container in the assembled and sealed packaging has a flat surface in the direction which will subsequently be the opening part of the filled Packaging should correspond, the inner container is folded in a special way. The folding is explained in detail in connection with the figures, which are part of this application. The folded inner container is in the outer supporting shell let in and fixed to this in the part that the Mouth part of the packaging corresponds to its opening. During the filling process however, this part represents the bottom part of the packaging. If the inner container the inner container has the shape of an open parallelepiped with a preferably flat bottom, with two the sides are provided with a welded joint and with from the preferably flat one Flat raised flaps on each of the butted sides.

When filling, the packaging consists of an inner container, which is surrounded by an outer supporting envelope and attached to it in the part of the packaging is attached, which serves as the bottom part of the packaging when filling.

The packaging is then closed in the normal way a suitable folding process in conjunction with z. B. welding or gluing.

The packaging therefore differs based on the filling and closing methodology is not different from other known packaging and can therefore be used in filling equipment normally available0 Of course, this also applies in cases where the packaging is for the filling with goods is used, which for storage under vacuum, z. B. Coffee, is provided. It goes without saying that always minor adjustments when changing to a new format or as a result of a possibly modified folding process required are. The essential thing is, of course, that the existing Basic equipment can always be used.

One advantage with the packaging is that for awuWeMeV A relatively cheap active ingredient can be used in the supporting shell, where, on the other hand, a flexible material is used for the inner container, which with regard to is selected on the material properties that the stored goods require. Of the This limits the use of more expensive material to the inner container only.

Another advantage with the packaging is that the inner container and the outer supporting sheath are secured together so that when deflated Packaging of the inner container can easily be separated from the outer shell.

This facilitates the recovery of the material, since there are different Allow material types to be easily separated from one another.

The invention is described in more detail in connection with 12 figures, of which figures 1 and 2 show different phases with the old of the inner container, and Figure 3 shows an inner container that can be placed in an outer supporting sleeve is completed, where Figure 4 includes a complete packaging Inner container and outer supporting shell ready for filling illustrated, where Figure 5 shows a complete packaging seen from below - related to the feed opening - and shows with the outer shell partially cut open to show how the Inner container is arranged in the outer shell, where Figure 6-8 shows an alternative represent for closing the inner container in its filling part, and Figure 9-11 shows another alternative for closing the inner container show and where Figure 12 contains a filled package, with the lid during of losing weight.

In Figure 1, the flexible material 2 can be seen, which becomes a Inner container is to be folded up. A stamp 1 is partially from that surrounding flexible material. The flexible material can be transparent, which is why the mandrel in the illustration is not covered by the flexible material. The dimensions and the shape of the stamp match the inner packaging that is being developed match. The edge parts in the flexible sheet that will be formed into the inner container are designated with the numbers 3 and 4 or 20 and 21.

In Figures 2 and 3, the numbers 5 and 19 mark longitudinal welds, which connect the edge parts 3 and 4 or 20 and 21 to one another. The side wall, slide the longitudinal weld seam 5, it is marked with the number 11, and the side wall, which contains the longitudinal weld 19, has the number 23. In the transition between the side walls provided with welded seams and the bottom part 8 of the inner container the two welds 24 and 22 can be found. These latter two welds connect the bottom surface with the two tabs 6 and 7. ~ ion of Figure 3 are the tabs 6 and 7 raised against the respective side.

In the illustration, the inner container has the same appearance as the appearance of the container when connected to its outer supporting shell and ready for di6 intake of the product.

In Figures 4 and 5, the inner container is in the outer packaging introduced and fixed. In Figure 4 you can see the assembled packing obliquely from above and in Figure 5 obliquely from below. In Figure 5 is also the outer packaging partially cut out. In the pictures is the outer one to find supporting sleeve, which also as outer packaging 9 with inwardly directed Circumferential flange 10 designated.

The inner liner is the one to the inward perimeter flange Outer packaging fixed in connection with the outer edges of the bottom surface 8. In the Packing assembled in this way forms the smooth bottom surface sins sbans cover disk 25 in the form as shown in Figure 5. the The filling opening 12 of the inner container is also marked.

Figures 6-11 clearly show two different ones Folding alternatives for closing the inner container after filling.

Figures 6 - 8 show one alternative, the figures 9-11 illustrate the other. After both folding alternatives, the closing takes place of the inner container with the help of sealing welds. In the first folding alternative the weld seam is designated with the number 17 and in the other alternative the weld is designated by 18. The closing flaps of the outer packaging are marked with the numbers 13, 14, 15 and 16. Figure 7 contains a detailed picture Via the folded opening part of the inner packaging after the first folding alternative. The folded opening part forms a flange-like upwardly directed one Edge 26 ready to be welded in place. In the pictures 10 and 11, the flaps 27 and 28 formed during folding can be found again.

Figure 12 shows a filled package and a reclosable lid 19 to see. The lid of the packaging is shown while it is being removed.

To understand the structure of the inner container, i. h the way in which If it is folded up, the easiest way to do it is to do an imaginary folding an inner container to follow. This is based on an arch made of flexible material 2, on which a stamp 1 (core) is placed. The shape of the stamp is correct with the shape of the inner container to be produced. Furthermore, the dimensions of the sheet aligned with the size of the container to be made. Parts of the arch are then on two vertical and opposite sides of the The stamp is pulled up in the manner shown in Figure 1.

This creates a U-like sack or bag from the arch, with the bag open at the top and on both sides, the other two correspond to opposite sides of the stamp. The vertical ones in the figure Parts of the sheet that protrude above the punch are bent towards each other, so that the edge parts 3 and 4 as well as 20 and 25 meet in such a way that that a strip on each side of the edge portions together is at right angles to the stamp surface form protruding flange, and such that the remaining Part of the inner surface of the sheet against the corresponding side surfaces on the punch is present. By having a concern for all vertical inner container surfaces achieved, on the one hand, a fold following the transition between the vertical surface and the bottom surface of the punch and on the other hand a tab 7 or 6 protruding from this fold. The edge parts 3 and 4 as well as 20 and 21 are now welded to one another and the corner welds are made in the rebate 19 and 22, d. i. the fold, the one in the transition between the vertical surfaces of the stamp and the bottom surface is for the stabilization of the folds and thus the shape of the container. The two flaps are then folded up to the respective side and the inner container is given the appearance shown in Figure 3.

An inner container according to Figure 3 therefore has a smooth bottom surface 8, which has neither folds nor welds, two vertical sides, too completely smooth, as well as two vertical sides, one of which is the longitudinal welds 5 or 19 and on the other hand flaps 7 or 6 folded up to the sides are. The sixth side of the container makes up its filling opening 12.

According to the invention is an inner container arranged in this way embedded in an outer supporting sheath 9 in the shape as shown in the figures 4 and 5 show. The smooth bottom surface of the inner container is in its edges for inwardly directed circumferential flange 10 fixed in the outer supporting shell. The flat cover plate 25 forms the smooth bottom surface.

A V3 bundle pack arranged in this way has a filling Opening for the inner container, which is not already known when filling Different filling openings of the packaging. After filling, the inner packaging by folding the opening part with subsequent sealing Welding closed. Figures 6 - 8 are examples of a folding process shown that can be used in this context. In Figures 9 Figure 11 illustrates an alternative folding method.

In the first folding process, two of the sides of the opening are first made of the inner container inwards, after which the remaining two sides also against each other in the manner shown in Figure 6.

The inwardly bent sides are preferably the sides that do not have a vertical welding seam. It is assumed that the inner container is filled with goods of a relatively dimensionally stable nature. By arranging the necessary folding devices in an appropriate manner, err one calibrates that the bent filling part of the inner container seen in the large one forms flat surface parallel to the surface of the cover disc.

From this surface a flange-like strip rises in the manner as shown in Figure 7. The inner packaging is closed then by * that the strip z. B. is welded or glued. After this Fixing the flange, it is bent over to form the flat surface above the product has been formed and the inner packaging will be that shown in Figure 8 Appearance. The flaps 13-14 of the outer packaging can then be folded over one another for example in the way shown in Figure 8 and they will then fixed to each other. This part of the packaging is now complete.

In the other folding method, preference should be given to vacuum sealing , two of the sides of the opening part of the inner packaging in the figure 9 expanded manner shown. Here, the opening part becomes the inner packaging assume the basic appearance shown in Figure 10. The opening part the inner packaging is welded, the one labeled 18 in Figure 10 Weld. The tabs 18 and 28 are bent over - see illustration 11 - after which the flaps 13-16 of the outer packaging are folded over one another and are fixed to each other 'and this part of the packaging is then completed.

At this point it should be pointed out * that a closing of the inner container according to the last alternative described some of the problems simplified, which are associated with obtaining a tight seal.

Usually, in previously known packaging, this is the folding in a Managed in such a way that you get slne tfariSerellde number Over J layers of wall material irl connections can be obtained. For example

Connection by welding bandage forces the welding devices, to accommodate large differences in thickness in the welding area. This is made possible by that the welding jaws give in a little, due to the copious use of welding material, so that it flows out everywhere and / or by profiling the welding area. at a closure according to the second alternative of the invention is avoided all such thickness variations in the welding area, because of folds or double folds the film layer to be connected is not present at all. Reduce by doing this the requirements for the equipment that is supposed to effect the connection and it at the same time, the possibilities of achieving a tight connection increase.

The opening part of the assembled package, e.g. has been closed according to one of the alternatives described above, forms then the bottom part of the filled packaging. The opening part for the filled The packaging consists of the smooth lid disc described earlier and the surrounding one Dividing the supporting shell. The packaging will normally be in the future Handled position shown in Figure 12. On the opening part is a cover 16 is opened, which protects it from damage. The lid will on the one hand held in its seat by the fact that it is difficult to move into the opening part the outer shell fits and on the other hand by the fact that, for example, a sealing strip is attached over it.

When the packaging is opened, the sealing strips are torn, the cover removed and the flat cover disc cut out. With only partial When the packaging is emptied, it can be closed again with the aid of the cover 16 will. This gives the packaging properties similar to those of a can. she is however, much cheaper to manufacture than previously known packaging of a can character.

Cardboard, cardboard, plastic, metal or the like are suitable materials for use for the inner container as well as the outer shell as well as examples of combinations of such materialsXvIn those cases in which the material is used for the inner container, however, it is a prerequisite that it is flexible, whereas when it is used for the outer supporting shell it is stiff.

The in Swedish patent applications 73 126 83-1 and 73 126 84-9 The packaging described relates to packaging that is in the corresponding Way how the packaging is constructed according to this description. The inner container in the packaging according to these descriptions, however, with her The contents are filled before they are pXacilerJt in outer supporting envelopes. at When filled, they have a kohrrorm, after which they are closed with suitable organs so that the filled inner container has the same geometric shape as the Outer shell receives. The packaging referred to in this description is filled, after the inner container has been attached to the outer shell. Due to the different Filling methodology for the packaging is for those described in this application Packaging requires a process of folding and thus a structure that can fundamentally of the folding process and therefore the structure of the above Packaging is different.

In the new packaging described here, there are two of the edge flaps 6 and 7 unfolded against two of the side surfaces of the inner packaging. This causes a bracing effect for both the inner packaging and the composite Packaging, in particular, the stiffening of the inner packaging makes handling easier the packaging when empty. The stiffening results in certain applications also that a thinner-walled cardboard can be used.

An advantage with the container according to the invention is that the reclosable lid does not protrude from the outer walls of the packaging. This will open up the room Optimal use of load pallets and containers.

In those cases where foil is used for the inner container, the smooth lid disc in the opening part of the packaging gives the opportunity for the viewer to see the contents of the packaging. This can be from the point of view valuable information for the consumer when considering a particular purchase Give goods.

The smooth lid disc in the opening part of the container can be decorated with figures and labeling are provided, z. B. on the composition of the goods, over informs about the opening of the packaging or that is used solely for decorative purposes. she can also be provided with perforations or other predetermined breaking points that make it easier to remove the cover plate.

In the above description it has been indicated that the inner container one smooth surface without joints for the side walls, which the inner container to the opening part the assembled packaging keeps directed, should have.

It is obvious that the idea of the invention - the combination an outer supporting shell with a flexible container inserted therein, which is filled after the inner container has been fixed in the outer shell - also have other folds of the inner container as a component can. Such other folds can result in the opening part of the inner container no longer has a smooth surface without joints.

However, such a folding of the inner container implies that the Opening part is usually less aesthetically pleasing and one at the same time In certain respects, cutting open the inner container makes it more difficult Applications, it is desirable to remove the cut-out cover plate of the inner container to facilitate. This can be achieved in that a special areifvorrichtung is attached to said cover disc. Such a one Gripping arrangement can also be arranged following a perforation in the cover disk * whereby these perforations make it easier to cut open the cover plate or represents part of an easy opening device for the cover disc. In particular Embodiments can include the folding alternatives mentioned in the preceding paragraph formed with a joint lying in the cover disc in such a way that the shock when removing the cut-out cover disk as a gripping arrangement can be used.

In the above description it has been assumed that the Inner container is made from a separate sheet of film, which is of his Size has been tailored to the dimensions of the inner container.

It goes without saying that this arc is also related can be tailored with the preliminary part of the folding of the container. In this F 11 is the starting material for the inner container therefore from z. B. one Roll of foil material removed. It is also possible to remove the inner container assemble several sheets or semi-finished products.

In the description it is also assumed that the folding of the inner container is fixed with the help of a number of welds. Of course can these fixations with a fixation by z. B. Gluing to be replaced.

The invention is available as a combination of an inner container and an outer supporting sheath has been described. It is obvious that in inner container folded and fixed in a shape as described above have been used without a combination with an outer supporting cover can. This applies if the containers are made of flexible material are and also in their design in a stiffer material. Blank page

Claims (13)

Patent claims 1. From a rigid outer shell made of, for example, cardboard, cardboard, plastic, metal or the like and an inner container made of a flexible material such as plastic, paper, metal or a comparable material, which inner container accommodates the desired goods, with the inner container is preferably made from a single blank (semi-finished product) and the inner container preferably on the part of the Aurdenhülle is secured, which has been selected as the emptying opening of a band-like circumferential flange (ion), characterized in that the inner container is attached to the outer shell before filling with filling material. 2. Packaging according to claim 1, thereby g e k e n n z e i c h n e t that the packaging with a resealable, sealing lid (16) is equipped, and the lid has a shape for the preferably sealing Concerning the oen Umkrie '5 flange (10) and adjoining opening patien of the outside container has. 3. Packaging according to one or some of the preceding claims, noting that the adhesion between the outer shell and the inner container is such that when the packaging is empty, the outer shell and the inner container are easy to separate from each other. 4. Packaging according to one or some of the preceding claims, in that there is a smooth surface (8) on the inner packaging makes up the cover disc (25) in the assembled package. 5. Packaging according to one or some of the preceding claims, in that the packaging has the shape of a parallelepiped Has. 6. Packaging according to one or some of the preceding claims, thereby g e k e n n n z e i c h n e t that following the edges that make the transition between the smooth surface (8) of the inner packaging and two opposite ones On the sides of the inner packaging two tabs (6, 7) can be found, those of the mentioned Edges are directed outwards. 7. Packaging according to claim 6, characterized in that there is no e n n z e i c h n e t that said tabs (6,7) folded up against said side walls are. a. Packaging according to claim 7 or 8, characterized in that it is not possible to use it e i c h n e t that the mentioned opposite side walls each with their longitudinal Weld seam (5, 19) are provided. 9. Packaging according to one or some of the claims 6-8, thereby it is not indicated that the tabs (6, 7) are sealed by welds (22, 24) are stabilized, which lie in the flaps, where they are at the said edges the inner packaging between the smooth surface (8) of the inner packaging and the Connect the mentioned opposite side walls. 10. Packaging according to one or some of the claims 6 - 9, as a result, that after filling the inner packaging with filling the same is closed and sealed in that in the filling part the two opposite sides of the packaging, which have no weld seams, are led against each other that a tab-like fold is formed and the the remaining sides equipped with the welds (5, 19) against each other are performed that a flange-like from the inner packaging to the outside Edge (26) is formed, in such a way that the remaining parts of the inner surfaces of the inner container rest more or less against the contents and that the outward directed edge is fixed by welding. 11. Packaging according to one or some of the claims 6 - 9, characterized in that the filling part of the inner container in one is folded in such a way that when sealing the inner container, For example, only two layers of film are in contact with one another by welding1 and in such a way that folds and double folds of the film layers miss. 12. Packaging according to claim 11, characterized in that there is no e c n e t that after the inner container has been filled with filling material, it is closed and is sealed in such a form that in the filling part of the inner container the Welds (5, 19) are moved so far from each other that the material edges strip of the inner surface of the inner container closest to the inner container abut one another in such a way that a flange protruding from the inner container is formed is, wherein two tabs (27, 28) protruding from the inner container are formed and the rest of the above mentioned relocation was done in such a way that the remaining parts of the inner surfaces of the inner container more or less at the contents are in contact; that a Schelissnant (18) is formed in that the inner surfaces are welded together in said flange and that said outstanding The flaps are folded over the sealed filling side of the inner container. 13. Modification of the packaging, this will not be indicated that the packaging consists only of an inner container according to one or some of the claims 5 - 12 consists.