EP0586956A1 - Display package - Google Patents

Abstract

The invention "multipack in the form of a carrier which is open at the top, in particular for forming a display box" relates to a carrier (1) having one or two carrier plates (2, 3) which form openings (5, 5', 47; 6, 7) to form receptacles for storing the products of the multipack (100). To form at least some of these receptacles and apertures (5, 5', 47; 6, 7), in this case apertures (21) in the form of punch-outs of the cardboard blank are formed at least in the upper carrier plate (2), which apertures are provided with an aperture rim (11, 11') to protect the individual products (10, 10'). Said aperture rim is placed over a peripheral section (42) of the carrier plate (2) and shaped at that point with an upper beading (12, 12') which slopes down into the carrier (1) on the inside and tapers to a given minimum aperture cross-section corresponding to the cross-section of the product (10, 10') at that point, which beading is continued downwards by an adjacent crease (49) and flap pieces (28, 48) with or without an additional lower beading (13, 13') and is bent laterally radially outwards, thus resulting in an aperture cross-section which widens outwards whilst forming a laterally projecting guide section or resilient flap pieces for the section of the inserted products (10, 10') to be removed. In this case, the beadings (12, 12'; 13, 13') are produced by twofold hot cardboard forming. In this case, the invention also relates to a method for producing a carrier with such receptacles formed by hot cardboard forming of the apertures. <IMAGE>

Description

The present invention relates to a multipack in the form of an upwardly open carrier made of cardboard, corrugated cardboard or the like for a large number of goods to be arranged next to one another at a distance, such as containers, hollow bodies, chocolates and the like, in particular for forming a presentation box with the Multipack applied lid, consisting of an upper carrier plate made of a first blank and a lower carrier plate, which is either formed from a second blank formed as a box or the first blank having a box part, openings at least in the surface of the upper carrier plate for receiving the individual Goods in one size and shape are created in accordance with the cross-section of the goods there and the two carrier plates are connected to one another by means of side walls, tabs or the like bent on fold lines.

A multipack of this type is already known from DE 37 01 388 C 2. This multipack has a carrier for a large number of vertically closely spaced tubes and the like, the carrier being formed from two spaced cardboard plates in which coaxially arranged recesses for receiving the tubes are provided. The first blank essentially comprises the bottom and the lower carrier plate and the second blank the upper carrier plate with the side walls of the multipack.

According to G 89 12 496.0, a multipack in the form of a carrier open at the top is known, which is formed from a single blank made of cardboard, corrugated cardboard or the like.

These known multiple packs are each designed for a large number of elongated tubes and the like which are to be lined up vertically next to one another, these objects each having the same size and an approximately circular cross-sectional shape narrowing downward. In this respect, the size of the recesses arranged coaxially one above the other in the two cardboard plates spaced apart from one another is the same in each case via a specific carrier plate. The recesses narrowing in the carrier are tapered.

The multipack in the form of an open carrier according to DE 37 01 388 C 2 and G 89 12 496.0 are, however, not suitable for receiving and storing objects of different widths and / or heights, such as those that are packaged in a presentation box for chocolates. The carriers for such presentation boxes must rather have differently shaped and dimensioned openings, so that round, square or rectangular chocolates of different sizes can be introduced there. The arrangement of the chocolates in such presentation boxes does not take place in exactly predetermined rows and lines, as is the case with the carriers for tubes and the like according to DE 37 01 388 C 2 and G 89 12 496.0, but primarily from an optical point of view , whereby it is important to present the chocolates optimally in their arrangement. The chocolates are therefore irregularly spaced from one another, and it is not necessary to store the largest possible number of chocolates on a carrier of a certain size.

Another disadvantage of the known multi-packs is that the cardboard material of the carrier is sharp-edged, particularly in the area of the opening edges, so that even when the edge of the opening is flanged, which drops inwards into the cardboard-like carrier while reducing the opening cross-section, damage to a pressure-sensitive one Outside of the goods placed there can occur at the latest as soon as it is removed from the carrier box.

Since the opening edges protrude radially inwards, there is a risk that these will be removed when the thin-walled chocolate product or the like is removed Cut in conversion material or an outer film covering applied there. This also applies in particular to the reception of goods which have an irregular cross-sectional contour in the plane of the upper and / or lower carrier plate or whose cross-sectional dimensions change irregularly over the section to be inserted in the carrier.
The invention is therefore based on the object of creating a multipack of the type described in the introduction, in which receptacles of the carrier are provided with openings which are suitable for packaging goods with a pressure-sensitive wall or casing, for example in the form of a tinfoil. In particular, damage to the goods when removing them from the opening of the carrier is to be avoided, even if the carrier is formed from a sharp-edged, thin cardboard material.

Furthermore, in a further embodiment of the invention, goods with an irregular cross-section in the surface of the carrier plate or with a slightly widening contour, e.g. be packable in the form of an Easter bunny or Santa Claus. Chocolate goods that are as unpackaged as possible should also be storable in the carrier.

This object is achieved according to the invention in a multipack according to the type mentioned at the outset by the features of the characterizing part of the main claim.

In this case, openings are punched out of the carrier plate in accordance with the uniform or irregular cross-sectional contour of the goods to be picked up in the height of the carrier plate such that after flanging the Opening edge of the object to be stored in the opening is laterally evenly and a secure storage of the goods is achieved with even, slight pressure of the lateral flanging or of the downwardly extending tab pieces.

The flanged opening edge lies in the area of the transition from the first upper flanging to the lower tab pieces or to the second lower flanging without undue pressure. The lower end widens laterally outwards in the opening cross section and thus serves as a laterally projecting guide wall for the goods to be pulled out of the carrier, such as an Easter bunny or the like. Since the edge of the opening rests evenly over its entire circumference on the outer wall of the object received there due to the essentially continuous circumferential flanges and the suitably dimensioned opening cross sections, the lateral pressure exerted by the flanging is uniform and minimal. This applies in particular when the object picked up in the opening is removed.

At the bottom, the goods either lie directly on a closed base part or are stored above them by a second support plate, which is offset in height from the upper support plate and which preferably has openings with flanged sections at the opening edges like those of the openings of the upper support plate.

Due to the system of the additional lower flanging and the punched edge of the punched side Opening can be the carrier or its upper carrier plate itself made of an extremely thin solid cardboard material according to claim 2, without the risk that the outer wall or an envelope of the object is damaged when it is removed from the opening. Claim 3 relates to an advantageous dimensioning of the size of the opening to be punched out depending on the size of the opening cross-section to be achieved after flanging. In this respect, it is ensured that even with a thin solid cardboard material according to claim 2, the cardboard material in the area of the flanging is not inadmissibly weakened by the hot cardboard forming.

The execution of the lower and / or upper flange in a completely coherent circumferential form according to claim 4 takes place in such objects in which the section inserted into the carrier does not spread downwards and which in this way can be inserted and removed from the carrier without damaging the flange let this pull out. If, on the other hand, the cross-sectional contour widens downward, the web section for forming the flanges is additionally provided with long incisions or cutouts, so that these widen resiliently when the object widening downward is inserted and pulled out. According to claim 5, the creation of openings with laterally angled, bent or flanged, free-standing retaining tabs is provided for receiving objects with a non-uniformly extending outside and with an irregular cross-sectional contour, which can be stored and fastened on or to the side of their bottom part. These can then resiliently project to the side or press on the receding outer wall of the goods placed in the opening. According to claim 6 it is provided that these lateral support walls forming retaining tabs also form a support base portion, so that storage of the goods to be accommodated, for. B. a rectangular chocolate from the bottom and outside already in the opening of the upper support plate. The formation of such retaining tabs according to claim 7 by punching or punching in the blank when the opening in the upper carrier plate is made possible enables the retaining tabs to be securely seated in the simplest manner, whereby they retain optimum elasticity, in particular when they are only bent from the upper carrier plate.

According to claim 10, the carrier plates of the multipack are made of a simple cardboard, solid cardboard or corrugated cardboard material which is provided on the surface with an outer coating or is penetrated by a suitable agent which prevents the penetration of cocoa butter, fats and the like into the material of the Carrier prevented. In this respect, unwrapped chocolates and other such confectionery can also be stored in the carrier without cocoa butter, other fats and the like penetrating into the carrier material. A coating of disco lacquer, glassine paper or Scotch-Bane is preferably provided as the coating. Such a coating or penetration of the carrier material is particularly advantageous insofar as the entire carrier plate is protected against the penetration of cocoa butter and the like, except for the flanged cut edges of the opening edges, in particular in the region of the flanged openings forming the receptacles. The The material of the carrier plates retains its original appearance and its original bending stiffness, hardness and flexibility even when it comes into contact with such agents. The lower flanging of the cut edges protects them from contact with the goods to be packed there, so that no cocoa butter or the like can penetrate there.

The formation of the openings forming the receptacles of the carrier according to claim 11, wherein in the cardboard blank around the punched-out opening offset cuts are made which, after the upper flanging has formed, form free flap pieces extending vertically or obliquely downward from the carrier plate, in the easiest way to place the resilient tab pieces on the upper flange. In addition, a lower flanging of the resilient tab pieces can also be carried out. The free tab pieces protrude below the upper or lower support plate and thus enlarge the side walls of the receptacles formed by the flanges. These tab pieces can be provided both below the upper and below the lower flanging with an additional crease according to claim 12 in an advantageous manner in order to ensure that, in particular, the cardboard box initially cut into tab sections is folded over at defined points to form the holding tabs or tab pieces . The restoring forces in the carton are completely or partially eliminated by such creases. If, on the other hand, the retaining tabs are placed directly on the flanging without an additional crease, they act as spring-elastic struts against the goods inserted into the receptacle. The through the flanges and creases and retaining tabs formed receiving openings are further narrowed evenly only by struts directed obliquely inwards.

The process claims 13, 14 and 15 relate to the production of the double flanging of the opening edges by hot cardboard molding. Not only is the upper first flanging produced by hot cardboard forming, but also the second lower flanging is produced by hot cardboard forming in a special second operation, in the opposite direction to the first operation from below into the opening of the cardboard blank to be flanged the stamp is kept. In this way, the upper and lower flanges at the edge of the opening can be placed directly next to one another in a narrow bend at an angle of more than 180 °, only suitable mold surfaces having to be applied to the stamp and the die of the heatable molding tools to be used to form the flanges. According to claim 13, flanging in the same direction takes place in the first working step, first producing the lower flanging and in the following second working step producing the upper flanging. This method allows simple shaping tools to be used to form the upper flanging of an opening edge interrupted by omissions in the outer web section with tab pieces projecting downward. In this case, the lower outward flanging is then applied to the free end section. By means of the punchings and incisions according to claims 8 and 9, which, if appropriate, extend over the area of the flanging into the area of the upper carrier plate surrounding them extend, it is achieved that objects such as Easter bunnies and the like, which widen their shape downwards, can be inserted into the carrier, the opening edge consisting of double-flanged, resiliently attached to the outer wall of the object received there holding tabs.

The invention is explained below with reference to a preferred embodiment of an upwardly open cardboard carrier with reference to its drawings.

Figur 1

Einen Längsschnitt durch den linken Teil des einer Präsentationsschachtel bildenden Trägers, unter Darstellung der oberen und unteren Trägerplatte sowie der Öffnungen in der oberen Trägerplatte zur Aufnahme der unterschiedlichsten Pralinen oder Süßigkeiten wie Osterhasen und des Aufbaus dieser Öffnungen durch seitlich abgefalzte oder umgebogene Haltelaschen und doppelt umbördelte Öffnungsränder;

Figur 2

Die Stanzung der Haltelaschen in der linken Öffnung der Trägerplatte gemäß Figur 1;

Figur 3

Die Stanzung der spitz zulaufenden Haltelaschen in der mittleren Öffnung der oberen Trägerplatte gemäß Figur 1;

Figur 4

Eine mit einer doppelten Umbördelung am Öffnungsrand zu versehende gestanzte Öffnung für Waren mit unregelmäßiger Querschnittskontur, beispielsweise in Form einer Cognac-Bohne, eines Osterhasens oder Nikolauses, wobei diese sich im eingesteckten Abschnitt verbreitern;

Figur 5

Eine schematische Darstellung einer mit Laschenstücken ausgestanzten und anschließend in zwei Arbeitsgängen doppelt umbördelten Öffnung mit eingebrachter, im unteren Bereich sich verbreiternden Ware;

Figur 6

Die Stanzung der Öffnung gemäß Fig. 5 mit Laschenstücken, welche durch Auslagerungen in einem äußeren umlaufenden Stegabschnitt des Kartonzuschnittes voneinander getrennt sind;

Figur 7

Eine schematische Darstellung des Herstellungsvorganges zur Erzeugung der oberen Umbördelung in dem mit einer Aufnahmeöffnung bereits ausgestanzten Kartonage-Zuschnitt;

Figur 8

Den Kartonage-Zuschnitt nach Erzeugung der oberen Umbördelung;

Figur 9

Den Arbeitsvorgang zur Erzeugung der zweiten unteren Umbördelung, wobei nunmehr der Stempel zur Erzeugung der Umbördelung in umgekehrter Richtung in den in entsprechender Lage auf der Öffnung der Matrize gedrehten Kartonage-Zuschnitt zwischen die vorstehenden Öffnungsränder der ersten Umbördelung gefahren wird.

Figur 10

Den Kartonage-Zuschnitt nach Erzeugung der zweiten unteren Umbördelung;

Figur 11 u. 12

Den Arbeitsgang zur Erzeugung der ersten unteren Umbördelung und der zweiten oberen Umbördelung. Hier werden beide Umbördelungen in der gleichen Richtung gebördelt;

Figur 13 u.14

Den Kartonagezuschnitt jeweils nach Erzeugung der unteren und beider Umbördelungen (Zur Aufnahme von Hohlkörpern mit größerem Format);

Figur 15 u. 16

Ein Längsschnitt und eine Draufsicht einer der in den Zuschnitten ausgestanzten Öffnungen mit mehreren, in einem dazu umlaufenden Trägerplattenabschnitt etwa in radialer Richtung verlaufenden, zueinander in Winkelabschnittenversetzten Einschnitten, welche unter Bildung von Laschenabschnitten bis zu einer äußeren umlaufenden zusammenhängenden Umbördelung des Randes der ausgestanzten Öffnung geführt sind und dabei nach Umbördelung im zusammengefalteten Zustand des Trägers senkrecht oder schräg von der Trägerplatte zur Unterseite des Trägers abgebogen stehende und als seitliche in radialer Richtung federnde Laschenstücke bilden, welche als Stützen in Form von Federbeinchen dienen. Damit die Federbeinchen unterhalb der Umbördelung in der Kartonage an definierter Stelle umgelegt werden, ist dabei die ausgestanzte Öffnung im Bereich des umlaufenden Trägerplattenabschnittes zur Umbördelung mit einem umlaufenden Riller versehen, wobei die versetzten Einschnitte in diesem Trägerplattenabschnitt bis zu diesem Riller geführt sind,

Figur 17

Die Ausbildung des an der ausgestanzten Öffnung des Trägerzuschnittes umlaufenden Trägerplattenabschnittes gemäß Figur 15 und 16 nach Anlage der Umbördelung, wobei die obere Umbördelung in einem ebenfalls umlaufenden Riller und dort nach unten frei vorstehenden Laschenstücke übergeht, welche als federnde Stützen bzw. Federbeinchen die einzubringende Ware auf deren Außenseite umgeben.

The drawings show:

Figure 1

A longitudinal section through the left part of the carrier forming a presentation box, showing the upper and lower carrier plate and the openings in the upper carrier plate for receiving a wide variety of chocolates or sweets such as Easter bunnies and the construction of these openings by means of laterally folded or bent-over retaining tabs and double flanged opening edges ;

Figure 2

The punching of the retaining tabs in the left opening of the carrier plate according to Figure 1;

Figure 3

The punching of the tapered retaining tabs in the middle opening of the upper carrier plate according to Figure 1;

Figure 4

A punched opening for goods with an irregular cross-sectional contour to be provided with a double flanging at the opening edge, for example in the form of a cognac bean, an Easter bunny or Santa Claus, these widening in the inserted section;

Figure 5

A schematic representation of an opening punched out with tab pieces and then double-flanged in two work steps brought in goods widening in the lower area;

Figure 6

The punching of the opening according to FIG. 5 with tab pieces which are separated from one another by outsourcing in an outer circumferential web section of the cardboard blank;

Figure 7

A schematic representation of the manufacturing process for producing the upper flanging in the cardboard blank already punched out with a receiving opening;

Figure 8

The cardboard blank after the top flanging has been created;

Figure 9

The work process for producing the second lower flanging, the punch for producing the flanging now being moved in the opposite direction into the cardboard blank which has been rotated in a corresponding position on the opening of the die between the projecting opening edges of the first flanging.

Figure 10

The cardboard blank after the second bottom flanging has been created;

Figure 11 u. 12th

The process of creating the first lower flange and the second upper flange. Here both flanges are flanged in the same direction;

Figure 13 and 14

The cardboard box cut after the creation of the bottom and both flanges (to accommodate hollow bodies with a larger format);

Figure 15 u. 16

A longitudinal section and a plan view of one of the openings punched out in the blanks with a plurality of incisions running in a circumferential carrier plate section running approximately in the radial direction and offset from one another at angular sections, which are formed with the formation of tab sections up to an outer circumferential continuous flanging of the edge of the punched out opening and, after flanging in the folded state of the carrier, form vertically or obliquely bent from the carrier plate to the underside of the carrier and form as lateral, resilient tabs in the radial direction, which serve as supports in the form of struts. So that the spring struts are folded down at a defined point below the flanging in the cardboard, the punched-out opening in the area of the circumferential carrier plate section for flanging is provided with a circumferential crease, the offset incisions in this carrier plate section being guided up to this crease,

Figure 17

The formation of the carrier plate section running around the punched-out opening of the carrier blank according to FIGS. 15 and 16 after the flange has been applied, the upper flange passing into a circumferential creaser and tab pieces protruding freely downwards there, which act as resilient supports or struts on the goods to be introduced surround the outside.

According to FIG. 1, the carrier (1) forming the lower part of a presentation box 100 for holding chocolates consists of an upper cardboard carrier plate (2) and a lower cardboard carrier plate (3). The lower cardboard carrier plate (3) forms a bottom part (4) and the side walls (9) of the carrier, which merge into one another via fold lines (8). The upper carrier plate (2) is inserted halfway into this part, the solid cardboard material of these carrier plates each having a thickness of 0.6-0.7 mm. Three different types of openings (5, 6, 7) are created in the upper support plate (2) with regard to their size and layout. The openings in the form of the opening (5) are due to the special design of their opening edge (11) for receiving chocolates, Easter bunnies or the like. With an irregular cross-sectional contour in the plane of the upper support plate (2) or below, determined by the special Formation of the opening edge, in particular goods with a pressure-sensitive wall or casing, for example with an outer packaging in the form of a stanol film. In particular, there will be damage to the goods when they are removed avoided from the openings (5) of the carrier, even if it is formed from a thin, sharp-edged solid cardboard material. The opening edge (11) is provided with an upper flange (12) which is bent inwards into the carrier (1) and narrows down to a predetermined minimum opening cross section, which is continued by a subsequent second lower flange (13) of the projecting opening edge, the opening wall continued in the direction below the upper support plate and is bent laterally outwards (see Fig. 10).

The double flanged opening edge (11) thus forms a laterally projecting lower guide for the sections of the inserted chocolates (10) to be pulled out, the opening cross section widening further outward to the lower end of the opening edge. The opening (5) is designed to receive the chocolate candy (10) with a continuous circumferential flanging, since the chocolate candy (10) does not widen significantly downwards and can therefore be pulled out of the opening (5) without difficulty in which it is held under lateral pressure by the elastically deformed flanges (12, 13). The diameter of the opening within the narrowest point of the flange, the elasticity of the flange and the diameter of the praline (10) must be matched to one another in such a way that the praline (10) in the opening (5) is pressed by the side opening edge (11) is not damaged.

Through the lower flange (13), which is a lateral protruding guide with a down in the Carrier enlarging cross-sectional opening, it is achieved in particular that the staniol film surrounding the outside of the praline (10) is not damaged by a sharp-edged thin opening edge when the praline is removed from the opening (5). On the other hand, the double flanging (12, 13) ensures that the chocolate is securely held within the carrier (1).

In the further openings (6, 7), a round chocolate candy is received in the opening (6). In this respect, the opening cross section is round and has, according to FIG. 3, three retaining tabs (16) of equal size, directed from the opening edge into the center of the opening.

Like the retaining tabs (14, 15) of the rectangular opening (7), these retaining tabs also result from lateral punching or punching of the original cardboard material of the openings (6,7).

The holding tabs (16) of the opening (6) are only designed as side support walls which resiliently abut the outer sides of the chocolate to be accommodated there.

In contrast, the holding tabs (14, 15) formed by punching the cardboard material in the area of the opening (7) are each provided with a double fold line, so that lateral support walls (17) are formed there with a support base section (18).

As indicated by outer dashed circumferential lines, the openings (6, 7) can also be followed by one be flanged inside. Flanging of this type enables the holding tabs (14, 15, 16) to be optimally aligned, the material bond to the outer carrier plate (3) not being weakened, in contrast to a fold line. A praline is accommodated in the opening (7), which is held under pressure in the area of the laterally bent support base sections (18) between the side support walls (17). Since the opening (7) narrows down in length and width, chocolates in particular can be accommodated there, which taper downwards and in their lower section to be received in the carrier not wider than the corresponding opening width of the opening (7) are trained. The top layer of the box provides additional support.

In Figure 6 is a schematic plan view of the upper support plate (2), the creation of a punch with lateral openings (29) and tab pieces (28) in the circumferential web portion of the opening edge (11 ') to form a modified opening (5') with outer flanges (12 ', 13') of the tab pieces (28) shown. The nominal diameter of this punched opening is approximately 4 mm smaller than the later opening cross-section of the opening (5 '), which results from the double flanging (12', 13 ').

FIG. 5 shows the formation of the opening (5 ') after double flanging of the punched openings according to FIG. 6, the flanges (12', 13 ') encircling the opening (5'), but lateral incisions (27 ) have, so that individual resilient tab pieces with Flanges (12 ', 13') are formed. At further points of the flanges are created in these openings (29) so that the width of the opening can be laterally deformed before the side tab pieces (28) meet.

This opening is specifically designed to receive objects that widen downward within the carrier. In FIG. 5, the lower end of an Easter bunny to be picked up is shown schematically, with this widening at the lower end to form the foot part (30).

The incisions (27) and the omissions (29) are made in a suitable number and size so that the Easter bunny (10 ') with its lower foot part (30), which is larger than the opening cross section of the opening (5'), there can be inserted and pulled out due to the laterally receding flanging sections. In Figure 7-14, one can see the type of manufacture of the two outer flanges (12, 13; 12 ', 13') of the opening edge (11) or (11 '). According to FIG. 7, the cardboard packaging having an opening (21) punched according to FIG. 4 is stored with this above the somewhat wider opening of a die (23). About a stamp having the cross-sectional contour of the opening to be created, which widens from bottom to top in such a way that it can be introduced into the opening (21) with its front section and due to residual moisture in the cardboard material with a water content of about 45% and heating of the The die and the stamp are heated to a temperature of approx. 200 ^o C and the opening edge (11) is flanged by hot cardboard forming. The The die (23) and the stamp (24) are heated by the heating cartridges (25, 26) shown schematically in the carrier plates.

After the first flanging (12) has been created, the opening (22) of the upper carrier plate (2) shown in FIG. 8 is obtained.

In a second operation, the lower flange (13) is then applied to the opening edge (11) as shown in FIG. 9, a second stamp (24 ') in the opposite direction being used to form this flange, which is bent radially outwards and by which the opening cross section increases downwards is guided from below against the underside of the blank between the flanging edge (11) of the opening (22) projecting there, so that the opening edge (11) now bends laterally radially outwards and the opening cross section is now enlarged in the region of this second flanging. The stamp (24 ') interacts with a die (23'). At the upper edge of the punches (24; 24 ') and at the inner opening edge of the die (23) and the pressure surface located to the side of the opening edge of the die (23') there are concave or convex curved surfaces (31,32; 33,34) created according to the desired curvature of the flanges.

In the lower area of the flanges (12, 13) a laterally protruding guide for easily vulnerable outer walls of pralines, Easter bunnies, Santa Clauses and the like to be pulled out is formed.

If the formation of a flange according to FIG. 5 with Tab pieces (28) between the upper flange (12 ') and the lower flange (13'), the two flanges are preferably flanged in the same direction according to FIGS. 11 and 12.

11, the lower flanging (13 ') is first produced, the individual flap pieces (28) punched out in the web section surrounding the opening edge having corresponding flanging sections of the flanging (13') at the free end (see figure 13).

The cardboard blank for forming the upper carrier plate (2) is then placed with these flanges (13 ') already applied to the tab pieces (28) onto the opening of a die (36'), the opening diameter of the die being larger than that of the die (36 ) is. The protruding tab pieces (28) can then be bent over the mold surface (41) falling convexly into the opening of the die (36 ') by means of the correspondingly wider punch (35'), between this mold surface (41) and the concave circumferential mold surface (40) of the stamp (35 ') the convex edge of the flanging (12') is generated.

Since the die (36 ') has a circumferential recess (37) below the molding surface (41), the lower flanges of the flap pieces (28) are pressed into this recess when the upper flanging is applied in this second hot-box forming.

Corresponding concave and convex are in the die (35) according to FIG. 11 and the stamp (35) there Shaped surfaces (38,39) created.

By means of the heating cartridges (26), the dies (35, 35 ') and the punches (36, 36') are heated to suitable heating temperatures of, for example, 200 ° C. for hot cardboard forming. For the tab pieces (28) of the upper flange (12 '), the length of the web section surrounding the opening (5') can be designed in accordance with the intended width. In this respect, they form an additional guide and holder for the lower flange (13 '), which as a guide section protruding laterally outwards already enables the goods (10') inserted with a larger lower dimension to be removed.

• a) die Kartonfasern vor Durchführung der Umbördelung vorgebrochen sind,
• b) daß beim Bördelvorgang zunächst die Laschenabschnitte (46) als Stützen gemäß Figur 15, 16 umgelegt werden (ca. 80^o), wobei die dann als Laschenstücke (48) umgebogenen freien Laschenabschnitte (46) später nach erfolgter Umbördelung besser senkrecht nach unten stehen, und
• c) daß die Rückstellkraft dieser Laschenstücke (48) bzw. als Stützen dienende Federbeinchen durch den Riller erheblich verringert wird.

The design of the carrier plates (2, 3) with openings (47), which have an upper flange (12) on the underside of the carrier, an adjoining groove (49), which also runs there, and tab pieces (48) which protrude downwards and serve as retaining tabs. 15 and 16. In this case, according to FIG. 15, an opening (21) is first punched into the blank in accordance with the contour of the goods to be introduced. The circumferential creaser (49) is then produced around this opening (21). While the flanging (12), which narrows outwards wholly or partly to the contour of the cross-sectional dimension of the goods to be defined there and falls to the underside of the carrier, is applied to an inner region (43) of the circumferential carrier plate section (42), the grooving is carried out on End of the inner area (43) towards the opening (21). Since the retaining tabs or supports (48) according to FIGS. 16 and 17 are made by incisions (44, 45) that run up to these circumferential grooves. are formed, the length of these tab pieces (48) results from the difference in the width of the circumferential carrier plate section (42) and the inner region (43) over which the actual flanging is applied. The incisions (44, 45) are offset in angular sections (α) around the punched-out opening (21) in such a way that free tab sections (46) extend next to one another in the cutting of the carrier plates (2, 3), which, in the folded state of the carrier, are bent perpendicularly or obliquely from the carrier plate (2, 3) in accordance with the curvature of the flanging (12) to the underside of the carrier and to lie to the side of the receptacle or opening (47) as resilient tab pieces (48) come. The installation of such a scraper (49) is particularly advantageous in the case of full cardboard packaging with a gravure of 350-450 g / m². With such a full cardboard material, there is no significant weakening of the circumferential crease. Rather, this grooving only reduces or eliminates the restoring forces of the retaining tabs in such a way that the retaining tabs do not damage the goods. In the present example, the cardboard thickness "X" = approx. 0.5 mm at 350 gr / m². According to FIGS. 15, 16 and 17, the circumferential carrier plate section is thus formed as follows:
The blank is provided with an open creaser (49) in the appropriate size and the contours of the goods to be accommodated in the respective receiving opening; incisions (44, 45) are made in the circumferential carrier plate section, which cut from the punched opening to the circumferential creaser (49) extend. The punched openings (21) are in one certain relationship to the later flanging (12) of the carrier plate section running around the opening. The formation of the creases is carried out as a function of the intended flanging (12), that is to say as a function of the flanging radii given there, a specific ratio of the scoring width to the flanging radius being observed. Through the installation of the scraper (49) it is achieved that

• a) the cardboard fibers have broken before the flanging is carried out,
• b) that the then bent as ear pieces (48) free tab portions (46) are in the flanging operation, first the tab portions (46) as supports according to Figure 15 are folded 16 (80 ^o), later after flanging better vertically downwards , and
• c) that the restoring force of these tab pieces (48) or spring struts serving as supports is considerably reduced by the creaser.

With such a design of the tab pieces (48) it can be achieved that a clamping of e.g. chocolates packed in the carrier did not take place. Such a clamp would be harmful for them after packaging or would be a hindrance when the chocolates were removed from the carrier.

Claims (15)

Multipack in the form of an upwardly open carrier made of cardboard, corrugated cardboard or the like for a large number of goods to be arranged next to one another at a distance, such as containers, hollow bodies, chocolates and the like, in particular for forming a presentation box with a lid to be applied to the carrier, the carrier consisting of an upper one Carrier plate consists of a first blank and a box part with a lower carrier plate and / or bottom part, which is either formed from a second blank or additionally from the first blank,
wherein at least in the surface of the upper support plate openings for receiving the individual goods are created in a size and shape corresponding to the cross-section of the goods there, and wherein the upper support plate and the lower box part by means of fold lines bent side walls, tabs or the like are connected to one another,
characterized in that for receiving individual goods (10, 10 ') with an irregular cross-sectional contour given in the plane of the carrier plate (s) or below it and / or with pressure-sensitive wall or film sheathing from the lower and / or upper carrier plate (2, 3) punched out openings (21) are provided with an opening edge (11, 11 '), which consists of a completely or partially circumferential section (42) of the support plate (2, 3) with an inward drop into the support (1) and itself is formed to a predetermined minimum opening cross section corresponding to the cross section of the upper flange (12, 12 ') narrowing there of the goods (10, 10') and by a subsequent lower flange (13, 13 ') of this section (42) and / or by instead, underneath the upper flange (12, 12 ') adjoining or by additionally between the upper and lower flange (12, 12', 13, 13 ') created tab pieces (28, 48) at a distance below the o beren and / or lower carrier plate (2, 3) continued and / or laterally bent radially outwards or inwards or folded, so that the opening cross section is formed to form a laterally projecting guide section for the section of the inserted goods (10, 10 ') to be removed expands suitably to the outside. Multipack according to claim 1,
characterized in that the blanks for forming the carrier plates (2, 3) a solid cardboard in a thickness of 0.3 - 0.7 mm or a micro corrugated cardboard with a thickness of 1.2 - 1.8 mm. Multipack according to claims 1 and 2,
characterized in that the nominal diameter of the punched-out openings (21) is chosen to be approximately four to fifteen millimeters smaller than the opening cross-section after flanging. Multipack according to one of claims 1 - 3,
characterized in that the flanges (12, 13; 12 ', 13') of the openings (21) are each formed in a continuous circumferential form or are interrupted by incisions and / or omissions (27, 29). Multipack according to one of the claims 1 - 4,
characterized in that a further part of the openings (6, 7) is formed with holding tabs (14, 15, 16) which are bent, flanged or angled along fold lines. Multipack according to claim 5,
characterized in that the lateral retaining tabs (14, 15, 16) of the carrier plate (2) are formed from a lateral carrier wall (17) and a carrier base section (18) additionally applied to the base part. Multipack according to claim 5 or 6,
characterized in that the lateral retaining tabs (14, 15, 16) in the area of the opening to be created (6, 7) are separated by cut-outs or punchings (19, 20) in the opening cross-section of the cutting material there and are formed integrally therewith. Multipack according to one of claims 1-7,
characterized in that incisions or cutouts (27, 29) are made in the upper and / or lower flanging (12 ', 13') of the opening edge (11 ') there in such a length that objects widening downward into the thus formed Openings (5 ') can be inserted. Multipack according to claim 8,
characterized in that the incisions and / or cutouts (27, 29) in the flanges (12 ', 13') are continued over the opening edge (11) into the lateral part of the upper support plate (2) adjoining there. Multipack according to one of claims 1-9,
characterized in that the material of the carrier is provided with a coating or is penetrated, which prevents the penetration of cocoa butter, fats or the like. Multipack according to one of the claims 1 - 10,
characterized in that
In an inner region (43) of the section (42) of the carrier plate (2, 3) which extends around one of the punched-out openings (21) to be flanged, the entire area to the outside or in part to the contour and the cross-sectional dimension of the section of the goods to be defined there, flaring (12) falling to the underside of the carrier (1) and in the outer region of the circumferential section (42) adjoining the latter and the punched-out opening (21) incisions (44, 45) extending essentially in the radial direction are made on the carrier plate (2),
These cuts (44, 45) are arranged in angular sections (α) around the opening (21) so that they are offset from one another so that tab sections (46) that are free of the flanging (12) in the cutting of the carrier plates (2, 3) Extend which, in the folded state of the carrier (1), are bent perpendicularly or obliquely from the carrier plate (2, 3) in accordance with the curvature of the flange (12) to the underside of the carrier (1) and at the side of the receptacle (47) as resilient tab pieces (48) come to rest. Multipack according to one of claims 1-11,
characterized in that
to form uniformly projecting tab pieces (28, 48) between these and the upper and / or lower flanging (12, 12 ', 13, 13') of the opening edges (11, 11 ') in the region of the openings (21) additionally at least one each a circumferential groove (49), which is pressed into the cardboard or cardboard in cross-section in the form of a bead, is placed in the cutting material. Process for forming a multipack according to a of claims 1 - 10, characterized in that the double edging of the opening edges are formed by two hot cardboard formations, the upper edging sloping inwards into the carrier and narrowing in the opening cross-section being formed by hot cardboard forming the edges of the punched openings in a first operation and in a second operation by further hot box forming, the lower flanges of the opening edges, which expand the opening cross-section, or that the upper and lower flanges are formed in reverse order. Method according to the preceding claim 13,
characterized in that in the first step the cardboard blank with its punched-out opening is placed on an opening of a first die with a convexly falling, laterally encircling lower mold surface that is larger than this opening cross-section and is inserted from above into the opening of the cardboard blank and the die Stamping tool with a stamp widening from bottom to top from the nominal diameter of the punched-out opening of the cardboard blank to the nominal diameter of the opening of the die with a concave upper mold surface to form the upper flanging edge, both the die and its stamp being heated to temperatures for hot cardboard forming are heated up and the cardboard blank has sufficient residual moisture for this, and in the second operation into this flanging opening second stamp with a concave lower circumferential, wider shaped surface to form a subsequent outward lower flanging in the opposite direction in the cardboard blank which now lies with its surface in front of the opening of a second die and is there with the free-standing flanging edges projecting outward to form the stamp is, the opening of this die is formed with a concave upper inward sloping peripheral surface for engaging behind the upper flange edge of the upper flange. (Fig. 6-9) Process for forming a multipack according to claim 14,
characterized in that
with double flanging of opening edges by hot cardboard molding, which are each to be created in an outer circumferential closed web section of the openings of the cardboard blank or in a web section having tab pieces separated by the creation of incisions and / or omissions, the cardboard box blank with its punched-out opening in the first operation an opening of a first die with a convex sloping, laterally encircling lower mold surface which is enlarged compared to this opening cross section is placed on the opening edge and from above into the opening of the cardboard blank and the die a stamping tool with from bottom to top of the nominal diameter of the punched-out opening of the cardboard blank stamp widening to the nominal diameter of the opening of the die with a concave upper one Form surface is formed to form the lower flanging edge and both the die and its stamp are heated to temperatures for hot cardboard forming and the cardboard blank has sufficient residual moisture,
and wherein in the second operation for forming the immediately adjacent upper flange or spaced from the lower flange via tab sections, a second stamp with a concave upper circumferential, wider, shaped surface for forming the flange edge of the upper flange again from above into the already formed first flange opening flanged opening is guided, which is placed on an opening with respect to its opening cross-section of a second die with a convex sloping lower peripheral surface at the opening edge to form the upper edge of the flange and the outer dimension of the stamp from the intended dimension of the first flange opening to the dimension the upper flanging opening to be created widened, with a laterally circumferential recess in the opening wall of the second die below its convexly sloping form surface is created, in which the lower flanging edge created in the first step is bent laterally when the upper flanging is formed. (Fig. 10-11)

Images