RU2241648C2 - Container, particularly multilayer package formed of cardboard and plastics - Google Patents

Abstract

FIELD: disposable package for liquid and gaseous products.

SUBSTANCE: re-sealed container has rectangular lower surface and four side walls 1, 3 extending at substantially right angles one to another and upper area closed with strip seam 5 after container filling. Arranged in upper area is closing member located on inclined surface 7. Container if collapsed so that inclined surface 7 supporting closing member 8 at least partly extends beyond rectangular profile defined by lower container surface. Surface 1 located below closing member 8 has convex zone. Surface 2 opposite to surface 1 has concave zone located at least in upper container area.

EFFECT: possibility of optimal container volume usage along with providing advantages of prior art container production, filling and closing.

8 cl, 18 dwg

Description

The invention relates to a vessel, in particular cardboard-plastic multilayer packaging for placement of liquid or pasty products, made with the possibility of closing, with a rectangular bottom surface, four lateral surfaces (housing surfaces) located mainly at right angles to each other, closed with a gusset after filling the package with the upper zone and a closing element located on an inclined surface in the upper zone.

In the field of disposable beverage containers, well-known cardboard boxes in the form of rectangular parallelepipeds currently dominate. Their advantages are relatively inexpensive production, if necessary, the possibility of aseptic filling, distribution and storage in wholesale and piece trade, as well as trouble-free stockpiling both in trade and with end users. In addition, along with these positive factors, the versatility of the product should be emphasized. So, for example, the individual identity of the products is achieved through the application of graphic elements, the design variety of which provides many different external effects. Compared to other disposable beverage packaging such as bag packaging, light metal alloy cans or glass and plastic bottles, cardboard containers have many advantages.

However, with regard to the possibility of re-closing this package, it has significant drawbacks in comparison with just the bottle packaging. The development over recent years shows that the possibility of re-closing cannot be neglected, since large packages (in store) are increasingly appearing on the market, for which the possibility of re-closing due to their large volume is important. Although multi-layer cardboard vessels made with the possibility of re-closing usually have corresponding and well-known closing elements, they are very slowly recognized by consumers. This is primarily due to the partially impractical and unusual handling of common constipation for disposable cardboard packaging, which in most cases does not provide clean pouring, and also does not meet consumer requirements regarding the possibility of re-closing (tightness when shaking, etc.).

Although some well-known packaging are easy to handle and provide the possibility of re-closing, however, these advantages are negated by bad logistics factors (lack of stacking). In general, it should be recognized that protruding from the packaging in the form of a rectangular parallelepiped, the closing elements must have a certain height to ensure reliable opening and tight re-closing. However, this height creates problems when stacking, and also after transportation itself, it happens that with careless handling in trade, the closing elements come off the packaging.

To solve this problem, DE 4015119 C2 provides that an inclined surface is provided in the upper packaging area on which the closure element is located in order to prevent the closure element from protruding from the main body in the form of a rectangular parallelepiped. However, this known packaging has the disadvantage that it requires a relatively large upper space.

The basis of this invention is the creation of a vessel with the possibility of re-closing, so that you can optimally use the volume of the vessel without losing the advantages of known vessels with respect to the manufacture, filling and closing. In addition, the shape of such a vessel resulting from the workpiece should best protect the constipation from force and damage. In this case, the workpiece should be such that at least basically the existing manufacturing technique is taken into account.

This problem is solved due to the fact that the vessel, in particular cardboard-plastic multilayer packaging for placing liquid or pasty products, made with the possibility of closing with a rectangular bottom surface, four side surfaces (essentially the surface of the case) located essentially at right angles to each other, closed by a girdle seam after filling the vessel with the upper zone and a closing element located on an inclined plane in the upper zone, the vessel being made with the possibility of addition, esuschaya closing member inclined surface at least partially protrudes over a predetermined rectangular bottom surface profile, wherein the closure member located below the surface of the housing has a bulge and the body surface opposite the protruding body surface has a corresponding concavity.

According to the invention, it is ensured that due to the bulge, there is an optimal ratio of the filled volume to the volume of the vessel. Due to the implementation, according to the invention, the front side of the package contains a bulge that would adversely affect the gapless and therefore space-saving and stable stacking. In order to prevent this, a concavity is provided in the lower region of the upper part of the package due to the arrangement of folding lines according to the invention, which is the opposite of said convexity. Due to the corresponding concavities in the opposite packaging zone, the requirement for good stackability is fulfilled. It is assumed that both the closing element and the inclined surface provided for its location are consistent with each other with respect to their dimensions, so that a certain protective effect and optimal stackability are ensured. In contrast to the modified upper packaging area, the implementation of the lower part remains unchanged relative to the prior art.

According to alternative embodiments of the invention, the flange seam provided in the upper zone may be laid in the direction of the inclined surface or in the opposite direction from it.

In contrast to the prototype packaging according to DE 4015119 C2, in any case there is the advantage of making a gusset according to the invention, namely that it always extends at right angles to the inclined surface, so that the "ears" of the packaging abut against the surfaces of the housing, adjacent to the surface of the housing with an inclined surface.

According to another embodiment of the invention, the convexity, respectively, the concavity, evenly tapers from the upper zone to the bottom zone. In this case, it is possible that the fold lines forming a convexity, respectively concavity, extend up to the lower corners of the package, or end on the lower front edge of the surface of the casing having an inclined surface in the area of the package corners.

However, the invention has already been completed even when the bulge, respectively the concavity, extends downward from the upper zone to about half the height of the vessel. It was found that this embodiment is also quite sufficient to provide advantages according to the invention.

According to the invention, it is preferable to use screw closure as a closure element for the vessel with the possibility of repeated closure according to the invention.

The following is a detailed description of the invention with reference to the drawings, representing only preferred examples of execution, which depict:

figure 1 is a first example of a vessel according to the invention, in isometric view;

figure 2 - vessel, according to figure 1, in isometric projection in rear view;

figure 3 - vessel, according to figure 1, in front view;

figure 4 - vessel, according to figure 1, in side view;

figure 5 - vessel, according to figure 1, in a rear view;

6 is a blank of the vessel according to the invention shown in figure 1;

7 is a second example of the implementation of the vessel according to the invention, in isometric projection;

Fig.8 is a vessel, according to Fig.7, in isometric projection in a rear view;

Fig.9 is a vessel, according to Fig.7, in front view;

figure 10 - vessel, according to Fig.7, in side view;

11 is a vessel, according to Fig.7, in a rear view;

12 is a vessel blank according to the invention shown in FIG. 7;

Fig - another example of a vessel according to the invention, in isometric view;

Fig.14 is a vessel, according to Fig.13, in isometric projection in a rear view;

Fig - vessel, according to Fig, in front view;

Fig.16 is a vessel, according to Fig.13, in side view;

Fig.17 is a vessel, according to Fig.13, in a rear view;

Fig. 18 shows a vessel blank according to the invention shown in Fig. 13.

Figures 1 and 2 show a first embodiment of a vessel according to the invention in an isometric view. In this case, the vessel has an unmarked rectangular bottom surface and four lateral surfaces located mainly at right angles to each other, i.e. surfaces 1, 2, 3 and 4 of the body. In the upper zone, the vessel is closed with a suture 5, triangular "ears" 6 are bent on the surface 3 and 4 of the body. An inclined surface 7 is provided in the upper region of the housing surface 1, which protrudes from the predetermined lower surface of the rectangular profile and on which the closure element is located 8. Due to this, the housing surface 1 located below the closure element 8 has a convexity, so that this surface convexly protrudes from the main housing having the shape of a rectangular parallelepiped. The opposite (rear) surface 2 of the housing is provided with a corresponding not indicated concavity, which will be described in more detail below.

Figure 3-5 shows a vessel according to the invention in three views from different sides. For simplicity, the following is a detailed description of the vessel according to the invention, with reference to its blank after cutting. Figure 6 shows the preform of a vessel according to the invention, which may consist of any suitable material, preferably of the usual multilayer material for disposable beverage packaging. As shown in Fig.6, the workpiece consists of a quadrangular sheet of the corresponding material. This quadrangle is divided by vertical angular lines 9, 10, 11, 12 and edge lines of the workpiece into five main fields, i.e. future lateral surfaces 1, 2, 3 and 4, as well as a strip 13 of the longitudinal seam. In this case, the main fields 3 and 4 defined by the vertical side lines 9, 10, 11, 12, and the upper and lower edges of the workpiece are identical.

However, the main fields 1 and 2 differ in essential features. The main field 1, defined by the vertical side lines 10 and 11 and the upper and lower edge of the bottom, has in the upper zone a quadrangular field 7 (future inclined surface), which is designed to position the closure element 8. For this, weakening is provided in field 7, for example perforation 14, in a layered material. From the corner points of the field 7, lines of folds lead to the corner points of the triangles 15 and 16, forming the future ears 7 of the package. Both lower corner points of field 7 through lines 17 and 18 of the folds are connected to the points of intersection of field 1 with line 19 of the fold of the lower edge, they end there in the corners. The position of the field 7 and its dimensions are variable and depend on the place, respectively, of the height required for the closing element 8. To ensure optimal stacking, it is advisable to choose the sizes and position of the above surface of the field 7 and surface 20 corresponding to the rear side surface 2 so that they were on the same horizontal surface as the highest point of the closing element 8.

On the rear main field 2 there are also fold lines 21 and 22 for stabilizing and structuring the concave back surface. They extend from the lower corner points of surface 20 to the intersection points of field 2 with the bottom edge fold line 19, and there again to the corners.

The main fields 3 and 4, as well as the entire lower zone of the workpiece (below the bottom edge bend line 19) are not described in detail, since these zones correspond to the usual workpiece of the known multilayer packaging in the form of a rectangular parallelepiped.

Another exemplary embodiment is shown in FIGS. 7-12, with the applicable items indicated accordingly. This example embodiment of a vessel according to the invention has a housing surface G, which in the upper zone of the vessel passes into a trapezoidal inclined surface 7 ', which is designed to accommodate the closure element 8. As follows from the preform shown in Fig. 12, the corresponding back surface 20' 2 'of the body is also made in the form of a trapezoid.

The lines 17 ', 18', 21 ', 22' passing under the inclined surface 7 ', respectively the surface 20', respectively 21 ', 22', do not extend in this case to the angles of the vessel, but fall outside the angles of the vessel, but below the surface 2 ' 19 fold bottom edges. This measure has the advantage that the fold lines 21 ’, 22’ deviate from the double passage zone of the material (longitudinal seam 13). The same embodiment, of course, can also be implemented in the first embodiment shown in FIGS. 1-3.

Finally, FIGS. 13-18 show another embodiment of a vessel according to the invention. In this case, the upper zone of the vessel corresponds mainly to the upper zone in the first embodiment (see Figs. 1-6). However, in this case, the gusset 5 is bent to the other side, so that the inclined surface 7 ’’ is larger than in the first embodiment. This is particularly well shown in FIG. From the blank shown there, it follows that the longitudinal seam 13 ’in this case is not formed on the back side, but on the front side of the vessel according to the invention, namely on the surface 1’ ’of the body. For this reason, the girdle seam 5 is also bent from the surface 1 ’’ of the body, respectively the inclined surface 7 ’’, to prevent too much bending of the material of the longitudinal seam.

In addition, it also follows from Figs. 13-18 that the lines 17 '', 18 '', respectively, 21 '', 22 '', located under the surfaces 7 ″, 20 ″, respectively, extend downward not to the edge line 19 bottom, but only to the middle of the vessel. This embodiment is less expensive with respect to bending the workpiece, and yet provides advantages according to the invention.

Claims (8)

1. A vessel, in particular a cardboard-plastic multilayer packaging for placing liquid or pasty products, made with the possibility of closing, with a rectangular lower surface, four lateral surfaces (essentially (1, 2, 3) located essentially at right angles to each other) , 4) of the housing), closed with a gusset (5) after filling the vessel with the upper zone and the closing element (8) located on the inclined plane (7) in the upper zone, characterized in that the vessel is made with the possibility of folding, while carrying the inclined surface (7) that covers the closing element (8) protrudes at least partially beyond the rectangular profile defined by the lower surface, the lower surface (1) of the housing below the closure element (8) having a convexity and the housing surface (2) opposite to the protruding surface (1) of the housing, has a corresponding concavity. 2. The vessel according to claim 1, characterized in that the gusset (5) is bent to the inclined surface (7). 3. The vessel according to claim 1, characterized in that the bent girdle seam (5) is directed from the inclined surface (7). 4. A vessel according to any one of claims 1 to 3, characterized in that the convexity, respectively, concavity is made with the possibility of uniform narrowing from the upper zone to the bottom zone. 5. The vessel according to claim 4, characterized in that the folding line, respectively, the concavity of the folding line (17, 18 and 21, 22) extend to the lower corners of the package. 6. The vessel according to claim 4, characterized in that the convex forming folding lines extend to the lower leading edge of the package and end in the area of the package corners. 7. A vessel according to any one of claims 1 to 3, characterized in that the convexity, respectively, concavity evenly pass from the upper zone to about half the height of the vessel. 8. A vessel according to any one of claims 1 to 7, characterized in that a screw closure is provided as a closing element (8).

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