EP0609784A1 - Foldable packaging container - Google Patents

Abstract

In a foldable packaging container with a bottom panel and with transverse and end walls (16) starting from the latter and separated from it by bending lines (24, 26) or such like weakening lines, the said packaging container being cut to size from a cardboard sheet, the transverse and end walls (18) are folded up at an angle to the bottom panel (14) to form a frame, surrounding the latter, for a receiving cavity (36), two transverse walls of adjacent packaging containers, as part of the material web, being separated respectively by a folding line (22). This packaging container forms, with a plurality of further identical individual containers (12), a packaging box (10) extended in a bar-like manner, and the individual containers (12) are separated from one another by the folding lines (22) of the material web, the adjacent transverse walls (18) of respectively two individual containers being movable relative to one another about a constructive hinge axis (B) drawn through the folding line. <IMAGE>

Description

The invention relates to a foldable packaging container with a base plate and transverse and end walls emanating therefrom, in particular for foods such as chocolate bars, confectionery or the like.

In the course of reducing the amount of packaging, attempts are increasingly being made to replace the plastic and film containers which have hitherto been customary with those made of pure paper and cardboard, with the aim of reducing the transport capacities by sending the packaging company flat blanks, which these then brought into the final packaging form and filled.

Knowing these circumstances, the inventor has set himself the goal of creating a foldable packaging container of the type mentioned at the outset, which both meets the requirements for good recyclability and is inexpensive and helps to save packaging material. The packaging container should be environmentally friendly, easy to dispose of and variable in design and usability.

To solve this problem, a packaging container and a cut provided for this according to the independent patent claims; the subclaims indicate favorable further embodiments.

According to the invention, the packaging container comprises a base plate and transverse and end walls made of a material web, particularly a paper and cardboard sheet, which are separated by bending lines. the transverse and end walls of the packaging container are at an angle to Bottom plate unfolded to form a surrounding frame for a receiving space, two transverse walls of adjacent packaging containers being part of the material web and separated by a crease line. This creates a container shape that is reminiscent of oversized chocolate bars, since several individual containers - which are made from a single sheet of cardboard - can be attached to one another as a packaging unit and filled and handled together.

According to a further feature of the invention, the described packaging container as an individual container is part of a bar-like stretched packaging box, the individual containers being separated from one another by the fold lines of the material web and the adjacent transverse walls of two individual containers each being able to be moved relative to one another about a constructive hinge axis through the fold line . This is made possible by the fact that the adjacent transverse wall pairs each delimit a gusset space below the fold line with an opening angle which is preferably between 5 ° and 30 °. Such an opening angle of 20 ° has proven to be particularly favorable.

The packaging box according to the invention comprising a plurality of individual containers of this type lined up and connected to one another fulfills the task seen by the inventor and can be produced in almost any length with a blank.

As a result of the gusset spaces present between the transverse walls of the individual containers - in the aligned position of use - the packaging boxes according to the invention can take different forms, ie their end walls can be assigned to one another in curved contours similar to a caterpillar belt.

However, it has proven to be advantageous to fill, close and transport the packaging box, which consists of several individual containers, as a flat web.

According to the invention, a separate cover plate can be used as a closure, which in turn is made from a cardboard blank and is provided with edge or side flaps for connection to the packaging box.

However, it is equally possible to provide a cover tongue on an end transverse wall - optionally also on both - which is separated from this transverse wall by an embossing line and can be placed around the individual containers. Since the latter - in the type of chocolate bars already mentioned - can be separated from one another at the described fold lines of the transverse walls, it has also proven to be advantageous to equip the cover tongue (s) with corresponding perforation lines. This creates an elongated packaging box that can be shortened in stages.

Since the packaging box according to the invention can be folded over in the area of each folding line between two adjacent transverse walls, it is also possible to fold the row of individual containers onto one another in two parts, for example in the longitudinal center of the packaging box, and thus to produce the closed position. Before said folding, the individual receiving spaces can be closed, for example by a cardboard sheet - or a transparent film - and the two parts can then be connected in the area of their upper edges.

Of particular importance is the proposal according to the invention to provide such a packaging box consisting of individual containers lying one on top of the other in pairs with at least one cantilevered holding tab, thanks to which the entire unit or the like can be easily placed on a sales stand. can be attached.

Another possibility of using the packaging box according to the invention is the use of a protective sleeve, which in turn is also made of cardboard, which is pushed onto the packaging box and furthermore makes it possible to hold together and protect individual containers lying one on top of the other in the manner described.

Overall, a container can be used that can be used in many different ways and is made of easily disposable material, which is easy to manufacture, easy to transport and easy to put into use. Compared to other forms of packaging, there is an astonishingly high saving in packaging material.

Within the scope of the invention lie not only the various forms of the packaging box or the individual containers attached to one another, but also the cut required for this, for which separate protection is sought. Different types of weakening lines such as perforations, scoring / counter-scoring, embossing lines or the like are used to limit the individual cutting fields.

Fig. 1:

eine Schrägsicht auf eine offene Verpackungsschachtel aus mehreren zusammenhängenden Einzelbehältern;

Fig. 2:

die Draufsicht auf den Zuschnitt zu Fig. 1;

Fig. 3:

die vergrößerte und teilweise geschnittene Frontansicht der Verpackungsschachtel gemäß Pfeil III in Fig. 1 mit einer teilweise angedeuteten Schutzhülse;

Fig. 4:

eine Schrägsicht auf die teilweise von der Schutzhülse umgebenen Verpackungsschachtel;

Fig. 5:

eine Schrägsicht auf eine andere Konfiguration der Verpackungsschachtel;

Fig. 6:

eine Schrägsicht auf eine weitere Ausführungsform der Verpackungsschachtel mit angehobener Deckelzunge;

Fig. 7:

eine Schrägsicht auf eine der Ausgestaltung nach Fig. 6 ähnliche Verpackungsschachtel mit teilweise angedeuteter aufgelegter Deckelzunge;

Fig. 8:

die Draufsicht auf den verkleinerten Zuschnitt zu Fig. 6, 7;

Fig. 9:

eine Schrägsicht auf eine mit Aufhängelasche versehene erfindungsgemäße Verpackungsschachtel;

Fig. 10:

eine Schrägsicht auf die geöffnete Verpackungsschachtel in der Ausführung der Fig. 9;

Fig. 11:

die Draufsicht auf ein anderes Detail einer erfindungsgemäßen Verpackungsschachtel.

Further advantages, features and details of the invention result from the following description of preferred exemplary embodiments and from the drawing; this shows in

Fig. 1:

an oblique view of an open packaging box made up of several contiguous individual containers;

Fig. 2:

the top view of the blank of Fig. 1;

Fig. 3:

the enlarged and partially sectioned front view of the packaging box according to arrow III in Figure 1 with a partially indicated protective sleeve.

Fig. 4:

an oblique view of the packaging box partially surrounded by the protective sleeve;

Fig. 5:

an oblique view of another configuration of the packaging box;

Fig. 6:

an oblique view of a further embodiment of the packaging box with the raised tongue;

Fig. 7:

an oblique view of a packaging box similar to the embodiment according to FIG. 6 with a partially indicated cover tongue;

Fig. 8:

the top view of the reduced blank to Fig. 6, 7;

Fig. 9:

an oblique view of a packaging box according to the invention provided with a hanging tab;

Fig. 10:

an oblique view of the opened packaging box in the embodiment of Fig. 9;

Fig. 11:

the top view of another detail of a packaging box according to the invention.

A packaging box 10 made of cardboard with a thickness of approximately 0.5 mm - for example for confectionery - has five individual containers 12 connected in line according to FIG. 1, each of which consists of a base plate 14, two end walls 16 and two transverse walls 18 connecting them . The cross sections of the individual containers 12 taper - both parallel to the longitudinal axis A of the packaging box 10 and transversely thereto - from the upper wall edges to the base plate 14. The angle w between the base plate 14 and the end walls 16 or transverse walls 18 measures slightly more than 100 °.

As can be seen above all in the cut 20 of the packaging box 10 in FIG. 2, the respectively adjacent transverse walls 18 of two individual containers 12 are separated by a folding line 22, which forms a type of hinge axis between the individual containers 12; these can be offset against each other about the hinge axis made clear with B in FIGS. 1, 2 be pivoted. For the sake of clarity, the upper edges of the outer transverse walls 18e of the packaging box 10 are designated by 19, and the upper edges of the end walls 16 by 17.

The length a of the blank 20 determined by the upper edges 19 of the outer transverse walls 18 measures 450 mm, its width b here 140 mm; this is also the distance between the upper edges 17 of the end walls 16 from one another. At a distance e of 25 mm each from the upper edges 19 and folding lines 22 crossing the longitudinal axis A - in each field of the cutting width f of 90 mm for the individual container 12 - two parallel bending lines 24, around which the transverse walls 18 to the base plate 14 can be set up. Parallel to the longitudinal axis A, the base plate 14 is delimited by bending lines 26, which are arranged at a distance h of approximately 90 mm from one another and to which the end walls 16 of height e connect to the outside.

From the intersection 28 of the bending lines 26, 24 - to the bending lines 24 of the transverse walls 18 at an angle w - inclined folding lines 30, which on the other hand end at the upper edge 19 of the outer transverse walls 18 and separate them structurally from folding tabs 32. Separation lines 34 are cut between the flap tabs 32 and the end walls 16.

In Fig. 3, the cutting edge generated by the dividing line 34 and connected to the end of the upper edge 19 or the folding line 22 by a curved cutting edge 31 of the folding tab 32 is designated 33. While the length of the side edges 15 of the end walls 16 inclined at an angle w to the bending line 26 corresponds to the length of the likewise inclined folding lines 30, the mentioned lateral cutting edge 33 of the folding flap 32 is shorter by a difference dimension q (FIG. 2, left).

The blank 20 is punched out of a cardboard sheet, which is not particularly shown here, and then the end walls 16 are folded out of the plane of the base plate around the bending lines 26 and the transverse walls 18, 18e about their bending lines 24, or the transverse walls 18 are folded over their fold lines 22 . Then the folding tabs 32 projecting from the lateral ends of the transverse walls 18 are brought around the folding lines 30 from the outside to the end walls 16 and glued to them. 1 with, for example, five receiving spaces 36 for packaging goods neglected in the drawing.

The packaging box 10 described can be inserted into a protective sleeve 38 which is adapted in cross section. The latter is only indicated in FIG. 3, and its cover plate 39 spans those receiving spaces 36. This cover plate 39 is adjoined on both sides by sleeve walls 40, which are connected by means of a sleeve base 41.

The packaging box 10 is inserted into the protective sleeve 38 in the direction of the longitudinal axis A, it being apparent in FIG. 4 that the individual containers 12 can be pivoted outside the protective sleeve 38 about the hinge axes B or the fold lines 22 against one another, to the stop of the Outer surfaces of the transverse walls 18 together. If the upper edges 17 of the end walls 16 lie in one plane, there are triangular gusset spaces 44 between the transverse walls 18 of the individual containers 12 below their fold line 22, the opening angle t of which measures approximately 20 °.

It is also possible to fold the packaging box 10 around one of its fold lines - Q in FIG. 5 - in such a way that a double pack is formed which consists of a protective sleeve 38 double height i - is held together. In addition, in FIG. 5 it is indicated at the right end of the packaging box 10 that an unnecessary individual container 12a can be separated along the hinge axis B.

In the exemplary embodiment of a packaging box 10a of FIG. 6, the upper edges of the end walls 16 and an outer transverse wall 18e are formed by fold lines 46, 48, around which wall flaps 50, 52 of the end and transverse walls 16 and 18 can be pivoted. These are then connected to a hinged cover or a cover tongue 54, for example by adhesive, which is fixed to an end transverse wall 18f and is separated from it by an embossing line 56. Perforation lines 58 parallel to the embossing line 56 and to one another can also be provided in the cover tongue 54, the distances n of which correspond to the distances of the folding lines 22 in the finished packaging box 10 or 10a. When the packaging box 10a according to FIG. 7 is closed, the free end of the cover tongue 54 projects beyond the end transverse wall 18e as a grip strip 55.

The length al of the blank 20a between the free edge 53 of the wall bracket 52 with the embossing line 56 is - including the bracket width z of 10 mm - here 370 mm, the length a2 of the cover tongue 54 here 207 mm. The width b1 of the blank 20a measures approximately 156 mm, the width b2 of the cover tongue 54 only 110 mm, but the distance n between its perforation line 58 is 52 mm.

9, 10 make or the like thanks to a cantilever flap 60 with a transverse slot 62 in sales stands. hanging packaging box 10b clearly. The cantilever flap 60 here replaces the wall flap of an end transverse wall 18e and is separated from it by the fold line 48. Two of the Individual containers 12 are folded around the imaginary hinge axis B to close the packaging box 10b, if necessary after the application of a stretched transparent film 64, as indicated on the right in FIG. 10.

For a simple embodiment, the packaging box 10 can be glued over with a cover plate 66, which is subdivided by perforation lines 58 into a plurality of part covers 67, each of which covers a single container 12. This cover plate 66 overlaps in the cover position with end flaps 68, 69 the upper regions of the end and transverse walls 16, 18.

Claims (15)

Foldable packaging container with a base plate (14) and outgoing, by means of bending lines (24, 26) or the like. Lines of weakness, separate transverse and end walls (18, 16), which are cut from a sheet of material, in particular from a cardboard sheet, and whose transverse and end walls are at an angle to the base plate (14) to form a frame for a receiving space (36 ) are unfolded, two transverse walls (18) of adjacent packaging containers being separated as part of the material web by a fold line (22). Packaging container according to claim 1, characterized in that it forms a bar-like stretched packaging box (10, 10a, 10b) with several further uniform individual containers (12, 12a). Packaging container according to claim 1 or 2, characterized in that the individual containers (12, 12a) are separated from one another by the fold lines (22) of the material web and the adjacent transverse walls (18) each have two individual containers relative to a constructive hinge axis (B) through the fold line are movable to each other. Packaging container according to one of claims 1 to 3, characterized in that the upper edges (17, 19) of the end and transverse walls (16, 18) lie in one plane in the position of use and the adjacent transverse walls (18) have a gusset space (44) with a Limit the opening angle (t), an opening angle (t) between 5 ° and 30 °, preferably of about 20 °, being provided if necessary. Packaging container according to claim 1 or 4, characterized in that the transverse walls (18, 18e, 18f) form an angle (w) above 90 ° with the base plate (14) in the position of use, preferably between 95 ° and 120 °, in particular approximately 100 ° . Packaging container according to one of claims 1 to 5, characterized in that the end walls (16) form an angle (w) of more than 90 ° with the base plate (14) in the position of use, preferably between 95 ° and 120 °, in particular about 100 °. Packaging container according to at least one of Claims 1 to 6, characterized in that folding tabs (32) project from both sides of the transverse walls (18, 18e, 18f) and can be folded in pairs on one of the end walls (16) and can be firmly connected to it, and / or that the top edge (s) of the end walls (16) and / or the end transverse walls (18e) is a fold line (46, 48) for a subsequent wall flap (50, 52). Packaging container according to at least one of claims 1 to 7, characterized in that on an end transverse wall (18f) with the interposition of an embossing line (56) or the like. Line of weakness connects a lid tongue (54) which overlaps several of the individual containers (12, 12a) in the closed position. Packaging container according to at least one of Claims 1 to 7, characterized in that the individual containers (12, 12a) are covered by a common cover plate (66) and these are attached to the end walls (16) and the end transverse walls (16) by edge tabs (68, 69). 18e) is connected, and / or that the packaging container is inserted into a protective sleeve (38) made from the sleeve base (41), cover plate (39) and longitudinal walls (40) connecting these. Packaging container according to one of claims 1 to 9, characterized in that the cover (38, 54, 66) has parallel perforation lines (58), the spacing (s) of which from one another is the spacing of the folding lines (22) in the position of use of the packaging box (10, 10a) , 10b), and / or that part of its individual containers (12, 12a) is folded around one of the fold lines (22) onto the other part of the individual containers and the upper edges (17, it corresponds to the packaging box (10, 10a, 10b), and / or 19, 22) of the end and transverse walls (16, 18) lie one on top of the other. Packaging container according to at least one of Claims 1 to 10, characterized in that at least one cantilever flap (60) projects as a holding element in a central plane defined by two rows of individual containers (12, 12a) which are located one above the other and are connected to one another. Blank for producing a packaging container, in particular a packaging container according to at least one of the preceding claims, from a cardboard sheet, characterized in that its longitudinal axis (A) has several fold lines (two) separating two adjacent sections of the cutting width (f) for a single container (12, 12a). 22) crosses, which is assigned a bending line (24) on both sides at a distance (e) as the height of a transverse wall (18) and adjoins this a base plate (14) delimited on the other hand by a bending line (24), parallel to the longitudinal axis at a distance (h) a pair of bending lines (26) runs to each other, which connects the other pair of bending lines (24), from which folding lines (30) start at angles (w) on both sides, separate the folding tabs (32) from the transverse wall (18) . Blank according to claim 12, characterized in that dividing lines (34) run between the hinged flaps (32) and the end wall (16), and / or that a foldable wall flap (50) is attached to the end wall (16) and / or the transverse wall (18e) , 52) connects. Cutting according to claim 12 or 13, characterized by a length (a) which corresponds to three times the total width (b) and / or more than three times the cutting width (f). Blank according to one of Claims 12 to 14, characterized in that a cover tongue (54) adjoins a transverse wall (18e), the length (a2) of which corresponds to the length (a1) of the blank (20a) as is 1.7 to 1, 8th.

Images