EP0543962A1

EP0543962A1 - Tube package.

Info

Publication number: EP0543962A1
Application number: EP92911139A
Authority: EP
Inventors: Gerd Kueppersbusch
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-06-17
Filing date: 1992-06-09
Publication date: 1993-06-02
Anticipated expiration: 2012-06-09
Also published as: WO1992022472A1; DE59202145D1; DE4119922A1; EP0543962B1

Abstract

Il est souvent difficile de vider les boîtes pliantes usuelles d'emballage lorsque les produits que l'on veut en retirer sont visqueux, crémeux ou pâteux. L'invention propose par conséquent de pourvoir un carton extérieur (2) d'un sac intérieur (3) susceptible d'être vidé au moyen d'un bec verseur (32). La paroi du fond (9) opposée au bec verseur n'est reliée qu'à deux parois latérales. On peut ainsi presser ensemble ces deux parois latérales, de manière à faire plier la paroi de fond vers l'intérieur et les autres parois latérales vers l'extérieur, ce qui permet d'exprimer de la boîte même des matériaux crémeux ou pâteux.It is often difficult to empty the usual folding packaging boxes when the products to be removed are viscous, creamy or pasty. The invention therefore proposes to provide an outer carton (2) with an inner bag (3) capable of being emptied by means of a pouring spout (32). The bottom wall (9) opposite the spout is only connected to two side walls. These two side walls can thus be pressed together, so as to bend the bottom wall inwards and the other side walls outwards, which makes it possible to express from the box even creamy or pasty materials.

Description

Tube packaging

description

The invention relates to a tube packaging according to the preamble of claim 1.

Such packaging is indeed well suited for the transport and pouring of bulk goods, such as powdery materials on the one hand and liquids on the other. However, if the material to be stored in the packaging has a high viscosity or is even cream or paste-like, the problem with the packaging described at the outset is that the material cannot be emptied out of the packaging well.

It is therefore the object on which the invention is based to improve a tube packaging of the type described in the introduction in such a way that creamy and pasty materials can also be removed from the packaging. This object is achieved by a tube packaging of the type described in the introduction, which is characterized by the features of the characterizing part of patent claim 1.

Since the booth wall is only connected to two side walls, while at least one side wall has no connection to the floor wall, the two side walls connected to the bottom wall can be pressed together. The side wall not connected to the bottom wall can move outwards. Therefore, the entire packaging can be compressed. This means that cream and paste-like substances can also be squeezed out of the packaging.

Preferred developments of the invention are characterized in the subclaims.

If the bottom wall between the side walls with which it is connected. has a somewhat larger extent, it must either bulge into the packaging or bulge out of it. This makes it even easier to compress the packaging. If it bulges into the packaging in particular, it is ensured that the inner bag remains reliably in the packaging. Kink lines advantageously support the compression of the packaging.

Further features and advantages of the invention result from the description of exemplary embodiments with reference to the figures. From the figures show:

1 shows the blank for the carton of an embodiment of the tube packaging;

2 shows the finished tube packaging according to the embodiment shown in FIG. 1 and

Fig. 3 shows the opened tube packaging when removing the inner bag. As can best be seen from FIG. 3, the tube packaging has an outer carton 2 and an inner bag 3.

The carton 2 is formed from the blank 4 shown in FIG. 1. The blank 4 has a first side wall 5 and a second side wall 6. A third side wall is provided between the first side wall 5 and the second side wall 6. A fourth side wall 8 is provided on the side of the first side wall 5 facing away from the third side wall 7.

A rear wall 9 is provided on the rear side of the first side wall 5 (the lower side in FIG. 1). The rear wall 9 extends essentially over the full width of the first side wall 5. The height of the rear wall 9, i.e. the extent with which the rear wall 9 extends away from the first side wall 5 is somewhat larger than the width of the third side wall 7 or the fourth side wall 8.

An adhesive strip 10 is provided on the lower side of the second side wall 6. An adhesive strip 11 is provided on the side of the fourth side wall 8 facing away from the first side wall 5.

A first cover plate 12 is provided on the front of the first side wall 5 (the upper side in FIG. 1). The cover plate 12 extends essentially over the entire width of the first side wall 5. The height of the first cover plate 12 corresponds essentially to the width of the third side wall 7 or the fourth side wall 8. At the first An adhesive flap 13 is provided on the side of the cover plate 12 facing away from the side wall 5. Two triangular adhesive tabs 14 and 15 are provided on both sides of the cover plate 12.

A second cover plate 16 is provided on the front of the second side wall 6. The second cover plate 16 extends essentially over the full width of the second side wall 6. Its height corresponds essentially to the width of the third side wall 7 or the fourth side wall 8. The rear wall 9 has a crease line 17. The kink line 17 extends essentially parallel to the underside of the first side wall 5. It runs essentially half the distance of the height of the rear wall 9 from the underside of the second side wall 5.

The 1st - 4th side walls 5-8 have a thick line 18, 19, 20 and 21 respectively. The crease lines 18-21 are substantially parallel to the front of their respective side walls. The distance from the front sides is approximately half the width of the third side wall 7 or fourth side wall 8.

A line of weakness 22 is provided in the third side wall 7. The line of weakness extends from the rear side to the thick line 20. The line of weakness 22 runs essentially parallel to the side edges and essentially at equal distances from the right and left side edges.

A corresponding weakening line 23 is provided in the fourth side wall 8. The weakening line 23 also extends essentially from the rear side to the crease line 21. It is essentially parallel to the side edges and at the same distance from both side edges.

A further weakening line 24 is provided in the third side wall 7. The weakening line 24 extends from the point at which the weakening line 22 meets the bending line 20 to the front connection point between the first side wall 5 and the third side wall 7.

A corresponding weakening line 25 is provided in the fourth side wall 8. It extends from the point at which the weakening line 23 abuts the kink line 21 to the front connection point between the first side wall 5 and the fourth side wall 8. The weakening lines 24 and 25 form a straight line as weakening lines 26 and 27 in the first cover plate 12 continues. They extend essentially into the middle of the cover plate 12.

Attenuation lines 28 and 29 are also provided in the second cover plate 16. The weakening lines 28 and 29 are arranged mirror-symmetrically to the weakening lines 26 and 27, i.e. they therefore extend from the upper corners of the cover plate 16 to substantially the middle of the cover plate 16.

The third side wall 7 has a crease line 30. The kink line 30 extends from the point at which the weakening line 22 abuts the kink line 20 to the front connecting point between the third side wall 7 and the second side wall 6. It is therefore symmetrical to the weakening line 24.

The fourth side wall 8 has a crease line 31. The crease line 31 extends from the point at which the weakening line 23 abuts the crease line 21 to the front connection point between the fourth side wall 8 and the adhesive strip 11. The crease line 31 is therefore symmetrical to the weakening line 25.

The tube packaging is made as follows:

A blank as shown in FIG. 1 is folded and closed to form a sleeve around the connecting lines between the side walls and the adhesive strip 11, in that the adhesive strip 11 is glued to the second side wall 6 at its free side edge. A foil bag is put over a mandrel. The box sleeve is placed over this. First the second cover plate 16 is then folded over by essentially 90 degrees and then the first cover plate 12 is folded over by essentially 90 degrees and glued to the second cover plate 16. The adhesive flap 13, the adhesive flap 14 and the adhesive flap 15 are then folded over in this order by a substantial 90 degrees and with the second side wall 6, the third side wall 7 and the fourth side wall 8, respectively.

A punching tool is guided through the mandrel, with which a hole is punched through the bag film and the cover plates 12 and 16. A pouring spout 32, as shown in FIG. 2, is inserted into this hole from the outside and is reshaped on the inside by means of a shaping stamp and firmly connected to the bag and the folding box. The tube packaging thus prepared is pulled from the mandrel and passed through the still open floor for filling.

The bottom closure begins with the spreading and sealing of the protruding bag film of the inner bag. The resulting film tips are folded inwards by approximately 180 degrees. The rear wall 9 is folded inwards and glued to the adhesive flap 10 such that the rear wall 9 has a curvature of approximately 10 degrees inwards along the fold line 17. This is particularly suitable because the height of the rear wall 9 is somewhat larger than the width of the side walls 7 and 8.

The tube packaging is used in the following way:

After the filled tube packaging has been placed on the market, the consumer removes a closure provided on the pouring spout and presses the tube packaging together from the rear on the two side walls 5 and 6. Then the rear wall 9 bulges into the carton. The inner bag therefore always remains secured in the box. By compressing the first and second walls 5 and 6, the third and fourth side walls 7 and 8 are bent outwards along the weakening lines 22 and 23. The transition to the front wall, which is formed by the first and second cover plates 12 and 16, takes place along the weakening lines 24 and 25 or along the crease lines 30 and 31. Thus, the tube packaging can be compressed completely until the two Side walls 5 and 6 lie parallel to each other, only separated by the empty inner bag.

When the tube packaging is completely empty, the consumer tears open the box. In Fig. 3, an intermediate stage of tearing is shown, in which the two cover plates 12 and 16 are open. Furthermore, the carton on the weakening lines 22, 23; 24, 25; 26, 27; 28, 29 are separated and the inner bag can be easily removed. The cardboard box made of a recyclable material and a light inner bag are then available, both of which can be disposed of easily.

In the above embodiment, both the rear wall (9) and the cover plates 12 and 16 are formed in a rectangular shape. However, these elements can also be designed in a triangular shape. Then two of the three side walls are connected to the rear wall, while the third side wall is not connected to the rear wall. When the two side walls connected to the rear wall are pressed together, the third side wall is bent outwards.

A hexagonal design of the rear wall and the two cover plates can also be carried out well. Again, two opposite side walls are connected to the rear wall. The other four side walls are not connected to the rear wall. When the two side walls connected to the rear wall are pushed together, the other four side walls automatically turn outwards. It does not even require the weakening lines 22 and 23 in the embodiment mentioned at the beginning.

Claims

PATENT CLAIMS

1. Tube packaging with a prismatic box (2) with a front wall 12, 16, with the front wall (12, 16) connected side walls (5, 6,,

8) and a rear wall (9), an emptying opening being provided in the front wall (12, 16), and an inner bag (3) provided in the carton (2) with an opening communicating with the emptying opening, characterized in that the rear wall (9) has only a first side wall (5) and a second side opposite the first side wall (5)

Side wall (6) is connected.

2. Tube packaging according to claim 1, characterized in that the dimension of the rear wall (9) in the direction which connects the first and second side walls (5, 6) is somewhat larger than the distance of the first side wall (5) from the second side wall (6).

3. tube packaging according to claim 2, characterized in that the rear wall (9) in the interior of the carton (2) is curved.

4. tube lease according to claim 2, characterized in that the rear wall (9) is curved outwardly ge.

5. Tube packaging according to one of claims 1-4, characterized in that the rear wall (9) has a crease line

(17) parallel to the first or side wall (5, 6) in one

Has a distance from each of these two side walls (5, 6).

6. Tube packaging according to one of claims 1-5, characterized in that the front wall (12, 16) and the rear wall (9) are rectangular.

7. tube packaging according to claim 6, characterized in that the first and second side walls (5, 6) are connected by a third and fourth side wall (7, 8), both of which have no connection to the rear wall (9) and that third and fourth side walls (7, 8) each have a weakening line (22, 23), which essentially runs from the front wall (12, 16) to the rear wall (9) and runs essentially in the middle, and which curves outwards or facilitate the bulging of the third and fourth side walls inwards.

8. tube packaging according to one of claims 1-5, characterized in that the front wall (12, 16) and the rear wall (9) are triangular or hexagonal or octagonal.

9. tube packaging according to one of claims 1-8, characterized in that the emptying opening has a Aus¬ pouring spout (32) which is guided through the front wall (12, 16) and the inside of the inner bag (3) with the outside world connects.