DE4200353A1 - Blister pack without plastics moulding - is folded from single card preform with hole pattern to view contents - Google Patents

Abstract

The card has a flat base (13) and two flaps (19) which fold up to form shaped side walls. The cover (20) is curved over the top edges of the side walls to form the container (12), and is secured by end flaps (18). The cover has a pattern of holes (14) large enough to view the contents and small enough to prevent the contents from falling out. The pack is assembled by tags and slots (15,16) or by adhesive. The viewing holes can be replaced by slit patterns. The blister sheep is determined by the shape of the side walls and can be curved, prismatic, rectangular etc. USE/ADVANTAGE - Cost effective pack, simple to recycle- no separation required from plastic.

Description

The invention relates to a blister pack with a cavity to hold a product that is packed with a flat cardboard plate connected hood is made of cardboard.

The general problem with packaging today is that Dispose of packaging after use. They are blisters known packaging, one of transparent art existing hood after inserting the packaged goods a backing board over a large area in a flat edge area the film hood is glued. If you look at the foil hood tears off the backing board, leaving larger scraps stick the backing cardboard to the film hood, with the result that the film hood is not disposed of as pure plastic waste can be.  

The same applies to another known blister packaging in which the film hood with flat edge sections in the manner of a dovetail guide into a corresponding one Characteristics of the backing board is inserted. In this However, trap is always an inadvertent separation from Backing plate and foil hood to avoid the foil hood connected to the backing board plate by a connecting means, for example with a metal clip.

A recycling of plastics is basically with certain problems. On the other hand, paper and Recycle cardboard particularly easily, as it is anyway Raw materials are required in the paper industry. For this Basically, there has recently been an attempt to reduce the plastic content of To reduce packaging in favor of the paper content and - to the extent possible - packaging made entirely of paper or cardboard to manufacture.

In the case of blister packs, however, the replacement of Plastic hood through a cardboard hood as a principle problem because the goods are clearly visible to be presented in the packaging.

If a single object, such as a glue stick, should be packed, it is possible to completely cover the hood run closed and a large viewing opening in the To provide cardboard plate on which the hood is attached. However, it is assumed that the one to be packed Object at both ends between the hood and the Cardboard plate is held so that falling out is avoided becomes.  

The invention is therefore based on the object, a full to constantly create cardboard blister packs, which is suitable for holding several objects and in which the objects are presented in a clearly visible manner. Soon In time, the packaging should be as simple and cost-effective as possible be inexpensive to manufacture or the packaging process be as simple as possible.

According to the present invention, this object is achieved by a Blister pack released, which has a cavity to hold a Has packaging goods, which by a with a flat Cardboard plate-connected hood is formed from cardboard, wherein a plurality of viewing openings in the hood and / or in the Cardboard plate is provided in the support area of the hood.

According to the invention there is a plurality of in the hood itself View openings provided, the shape and size of the view openings are of course matched to the respective packaging goods can be, so that on the one hand as unimpeded as possible View of the packaged goods is possible and on the other hand a Falling out is prevented.

Alternatively, the viewing openings in the Cardboard plate itself should be provided in the support area of the hood. In many cases, even with the hood fully closed This version also provides adequate visibility. If hood and cardboard plate are made in two parts and the hood on the edge after filling the packaging material the flat cardboard plate is sealed on this version, the manufacture of the packaging or The packaging process itself is particularly simple and inexpensive.  

In a further embodiment of the invention, hood and Cardboard plate folded from a one-piece blank.

In this way, the number of to be handled is reduced Parts, which simplifies the packaging process and is made more cost-effective.

In a preferred development of this embodiment the hood has a curved front part and two flat side surfaces on, which are connected to each other via folded edges.

The arched front part, which expediently as far as possible is penetrated by viewing openings, enables a largely unobstructed view and an advantageous performance of the packed items. After folding up the two sides surfaces that are provided on the edge of the cardboard plate, the packaged goods can be inserted and the hood through Folding the arched front part can be closed on the side surfaces come to rest and the ends of the Cardboard plate is attached.

In a further advantageous embodiment, slots are on the front part provided in the tabs provided on the side parts Intervene closed packaging to secure the position.

In this version, the position of the side surfaces and the Front part set in a particularly simple manner.

In a further preferred embodiment there are seals on the hood edges for connecting the hood to the cardboard plate Heat sealing or gluing provided.  

This type of connection, which is known per se, makes a special one time-saving closing of the packaging enables.

In an advantageous development of the invention, the hood has a flat, rectangular front part with the edges over Folding edges are each connected to a flat side part, where one of the side panels with another folded edge the flat cardboard plate is connected.

In this version, in which the hood is rectangular, prisms is hood-shaped or pyramid-shaped and board from a single blank. At the same time it is possible to start with the four sides Fold up surfaces of the hood, creating a receiving trough for the objects to be packaged are created. After inserting the The cardboard plate can pack goods onto the hood from above be unfolded and the packaging by heat sealing of the three free side parts closed with the cardboard plate will. For this purpose are expediently on these side parts Seal edges provided.

In a preferred further development, the viewing openings are Invention arranged such that a lattice-like structure is formed.

On the one hand, this provides the clearest possible view of the Packaged goods guaranteed, on the other hand will fall out of the packaged goods avoided.

In a further advantageous embodiment of the invention the viewing openings are designed as punch holes.  

This version is particularly easy to manufacture which enables viewing openings by punching out.

The shape and arrangement of the viewing openings can be varied Limits vary. A good view of the packaged goods on the one hand and high strength of the remaining lattice on the other hand, however, arise when the viewing openings circular, oval, rectangular, triangular, honeycomb or are rod-shaped.

Since the highest possible security of the packaging against must be torn open, it comes in particularly on the strength of the after punching the Remaining openings on the remaining openings.

This has a honeycomb structure and a perforated grid like structure proved to be particularly advantageous.

Further advantages result from the description and the attached drawing.

It is understood that the above and the following features still to be explained in each case in the mentioned Combination or in other combinations or alone position are usable without the scope of the present Leaving invention.

Embodiments of the invention are in the drawing are shown and are described in more detail in the following description explained. Show it:

Figure 1 is a perspective view of a blister pack according to the invention in a first embodiment.

Fig. 2 is a perspective view of a slightly modified version of a blister packaging compared to Figure 1;

Fig. 3 is a further modification of a blister pack according to the invention in perspective view;

Fig. 4 shows a fourth embodiment of a blister pack according to the Invention in perspective Dar position;

FIG. 5 shows a planar blank for producing a blister package according to Fig 1, wherein the size and arrangement of the inspection openings compared to the embodiment of Figure 1 are slightly modified..;

FIG. 6 shows a further flat blank for producing a blister pack according to the invention in an embodiment slightly modified compared to the embodiment according to FIG. 4 and

Fig. 7 is a plan view of the cardboard plate of a further modification of a blister pack according to the invention.

In Figs. 1 and 2, a bag-shaped blister pack is shown, in which the hood is designed as a curved front part, the straight by two side parts is limited. Fig. 5 shows a blank from which such a shaped packaging can be produced by folding.

Which is generally designated by the numeral 10. The blister pack according to Fig. 1, has a flat cardboard sheet 13 protruding from the pocket-shaped molded from a hood 12 to the front. At the upper end of the cardboard plate, a hanging hole 11 is provided for sliding the packaging onto the holder of a sales shelf. The hood 12 has a convexly curved front part 20 , in which circular viewing openings 14 are provided which are arranged in such a way that a lattice-like structure is formed. A longitudinal slot 16 is provided on each of the two edge sides of the front part 20 , in each of which a tab 15 of a circular segment-shaped side part 19 engages, which is folded out vertically from the cardboard plate 13 . As a result, the relative position of the front part 20 and side parts 19 is determined. The hood 12 , which rests on the flat cardboard plate 13 , defines the cavity in which the packaged goods are kept clearly visible. At its end facing away from the hanging hole, the cardboard plate 13 is extended outwards from the hood by a short, flat extension 17 . This extension consists of two parts which are connected to the front part 20 or the cardboard plate 13 and are folded at the edges and are heat-sealed to one another when the packaging is closed. At the end of the front part facing the hanging hole 11 , a sealing edge 18 is provided, by means of which the front part 20 is fastened on this side to the cardboard plate 13 by heat sealing. For this purpose, the sealing edge 18 is coated with a hot glue.

The blister pack shown in FIG. 2, which is designated overall by the number 30 , differs from the blister pack previously explained with reference to FIG. 1 only by the shape of the viewing openings 34 , which are elliptical, and by the fact that on one flat extension on the end of the hood 32 facing away from the hanging hole 31 was dispensed with. Here too, the front part 40 is convexly curved outwards and connected to tabs 35 of the side parts 39 via longitudinal slots 36 . Likewise, a sealing edge 38 is provided at the end of the front part 40 facing the hanging hole 31 , which is sealed onto the cardboard plate 33 in order to close the packaging after it has been filled.

The generally designated by the numeral 90 embodiment of FIG. 5 shows a flat blank 101 from which a package can be manufactured by folding in FIG. 1.

At the upper end of the blank 101 , a hanging hole 91 is seen before. The blank 101 has an overall rectangular basic shape and is divided into individual sections by transverse folding edges 103 , 103 c, 103 d, 103 e and 103 f. The individual folded edges are pre-folded to enable easy folding. Through the first, the hanging hole 91 adjacent fold edge 103 and a further fold edge parallel thereto is c 103 defines a rectangular area 102, which forms the supporting surface for the hood 92nd Laterally on this rectangular base area 102 , circular segment-shaped side parts 99 are formed via folding edges 103 a, 103 b, which protrude laterally outwards and to which an outwardly projecting tab 95 is formed in the outer, central region. Parallel to the transverse folding edge 103 c, which delimits the base area 102 , two further folding edges 103 d and 103 e are provided, each of which delimits a narrow rectangular section of the blank 101 .

A further folded edge 103 f runs parallel to the folded edge 103 e. The front part 100 is delimited by these two folded edges 103 e, 103 f, in which circular viewing openings 94 are arranged like a perforated grid. The front part 100 has a longitudinal slot 96 on the edge, which is intended to receive a tab 95 of a side part 99 . A sealing edge 98 adjoins the folding edge 103 f, by means of which the packaging can be closed by heat sealing.

The packaging is now folded in the following way: First, the two side surfaces 99 are folded up vertically around the folded edges 103 a and 103 b. Now the packaged goods are placed on the base 102 and the front part 100 is first folded around the folded edge 103 d, whereby the two equally large, narrow rectangular surfaces between the base 102 and the front part 100 come into contact and the folded edges 103 c and 103 e rest on each other. The front part is now bent around the side parts 99 in the direction of the upper end of the cardboard plate 93 and the tabs 95 are inserted into the longitudinal slots 96 . Finally, after the sealing edge 98 has been folded around the folding edge 103 f, the sealing edge 98 is brought into contact with the cardboard plate 93 and closed by heat sealing. At the same time, the two superimposed surfaces, which form a planar extension 97 projecting outward from the hood 92 , are likewise connected to one another by heat sealing. As soon as the heat sealing process is finished, the packaging is securely closed.

In Fig. 3, another embodiment is generally designated by the number 50 . It can be made from a flat blank in a manner similar to that previously mentioned. In this embodiment, the hood 52 encloses a prism-shaped cavity, which is delimited by a flat, rectangular front part 60 , two flat, rectangular side parts 59 a, 59 b and two trapezoidal side parts 59 . To fix the position of the side parts 59 and the front part 60 , longitudinal slots 56 are also provided on the edge side of the front part, into which tabs 55 of the side parts 59 engage. A hanging hole 51 is again provided at the upper end of the flat cardboard plate 53 . In the front part 60 and the two adjoining it, connected via folded edges side parts 59 a, 59 b, honeycomb-shaped viewing openings 54 are punched through which a lattice-like structure is formed.

At the upper end of the side part 59 b, a sealing edge 58 is again provided, by means of which the packaging is sealed with the flat cardboard plate 53 by heat sealing after the packaging material has been inserted and the hood has been folded over.

Fig. 4 shows a further embodiment of the invention, in which a prism-shaped hood 72 also comes to rest on a flat cardboard plate 73 . In contrast to the previously mentioned embodiment, hood 72 and cardboard plate 73 are not made from a one-piece blank. The hood 72 , which consists of a flat, rectangular front part 80 , two rectangular side parts 79 a, b and again two trapezoidal side parts 79 , is prefabricated in the prismatic shape described above. A sealing rim 78 , 78 a, b, c is formed on each side part 79 , 79 a, b.

To fill the blister packaging, the packaged goods are first inserted into the hood 72 from above, and then the sealing edges 78 , 78 a, b, c are sealed onto the flat cardboard plate 73 , whereby the packaging is closed ready for sale. In this embodiment, rectangular viewing openings 74 are arranged in the front part 80 and the two adjacent rectangular side parts 79 a, 79 b, through which the packaged goods are clearly visible.

Since the goods to be packaged can simply be inserted into the hood 72 from above when the packaging is filled, the packaging process itself is particularly simple.

In the exemplary embodiment designated overall by the number 110 in FIG. 6, a flat blank 121 is shown, from which the packaging is produced by folding. The main difference to the previously described execution forms is that the entire packaging can be closed simply by sealing three sealing edges on a flat cardboard plate. Slots or tabs for securing the position are not required.

The blank 121 has a flat, rectangular cardboard plate 113 , in the upper end of which a hanging hole 111 is provided. At the lower end of the cardboard plate 113 , the part of the blank from which the hood 112 is folded is formed over a folding edge 123 . The hood 112 has a slightly smaller width than the cardboard plate 113 on to a circulation of sealing edges 118a, 118b to allow on the cardboard plate. The shape of the hood 112 essentially corresponds to the shape previously described with reference to FIGS. 3 and 4. It is therefore a prism-shaped hood 112 with a flat, rectangular front part 120 , on each of which a rectangular side part 119 c on the side facing the hanging hole 111 and a rectangular side part 119 b on the folding edges 123 a or 123 d Connect the side facing away from the hanging hole 111 . Trapezoidal side parts 119 , 119 a are connected to the front part 120 via lateral folding edges 123 c and 123 b. At the outer end of the rectangular side part 119 b, which faces away from the hanging hole 111 , a sealing edge 118 adjoins via a folding edge 123 e. In a corresponding manner, sealing edges 118 a and 118 b are integrally formed on the two trapezoidal side parts 119 and 119 a via folded edges.

In the front part 120 and the two rectangular side parts 119 b and 119 c, oval viewing openings 114 are provided, through which in turn a lattice structure is formed.

At this point it should be noted that it is of course without further would be possible, also in the other side parts or Provide viewing openings in the flat cardboard plate, provided that the stability of the packaging is sufficient. Otherwise, can of course also the shape and arrangement of the viewing openings the individual areas of the hood or the cardboard plate varies will.

The packaging is filled and closed do the following:

First, by folding the trapezoidal side parts 119 and 119 a to the fold edges 123 c and 123 b and the rectangular side parts 119 b and 119 c to the fold edges 123 d and 123 a of the trapezoidal cavity of the hood 112 formed in the objects to be packaged are inserted. The flat cardboard plate 113 is then folded around the folding edge 123 and brought to bear on the hood 112 from above. The sealing edges on the side parts 118 , 118 a, b are folded parallel to the cardboard plate 113 and connected to it by heat sealing, whereby the packaging is closed.

A further exemplary embodiment, which is designated overall by the number 130 , is shown in FIG. 7. Here, the packaging is composed of a prefabricated hood (not shown) and a flat cardboard plate 133 , which can be seen in FIG. 7. While no viewing openings are provided in the hood itself, circular viewing openings 134 are provided in the flat cardboard plate 133 in the contact area of the hood. The viewing openings 134 are in turn arranged such that a perforated grid-like structure is formed.

This version has a somewhat restricted view of the packaged goods, but this blister pack can be produced in a particularly simple and cost-saving manner, since conventional hoods can be used and the viewing openings can be punched out of the cardboard plate 133 together with a hanging hole 133 in one operation .

This has the particular advantage that conventional packaging machines can be used practically without conversion.

Claims (11)

1. Blister packaging with a cavity for receiving a product to be packaged, which is connected to a hood ( 12 , 32 , 52 , 72 , 92 , 112 ) by a flat cardboard plate ( 13 , 33 , 53 , 73 , 93 , 113 , 133 ) Cardboard is formed, wherein a plurality of viewing openings ( 14 , 34 , 54 , 74 , 94 , 114 , 134 ) in the hood ( 12 , 32 , 52 , 72 , 92 , 112 ) and / or in the cardboard plate ( 133 ) in Contact area of the hood is provided. 2. Blister pack according to claim 1, in which the hood ( 12 , 32 , 52 , 92 , 112 ) and cardboard plate ( 13 , 33 , 53 , 93 , 113 ) are folded from a one-piece blank ( 101 , 121 ). 3. blister pack according to claim 2, wherein the hood ( 12 , 32 , 92 ) has a curved front part ( 20 , 40 , 100 ) and two flat side parts ( 19 , 39 , 99 ), the folding edges ( 103 , 103 af) are interconnected. 4. blister pack according to claim 2 or 3, in which on the front part ( 20 , 40 , 60 , 100 ) slots ( 16 , 36 , 56 , 96 ) are provided, in the provided on the side parts ( 19 , 39 , 59 , 99 ) Insert the tabs ( 15 , 35 , 55 , 95 ) with the packaging closed to secure the position. 5. Blister pack according to one of the preceding claims, in which on the hood ( 12 , 32 , 52 , 72 , 92 , 112 ) sealing edges ( 18 ; 38 ; 58 ; 78 , 78 a-c; 98; 118, 118 a, b) for Connection of the hood to the cardboard plate ( 13 , 33 , 53 , 73 , 93 , 113 , 133 ) by heat sealing or gluing are provided. 6. The blister pack according to claim 2, wherein the hood ( 112 ) has a flat, rectangular front part ( 120 ), the edges of which are connected to a flat side part ( 119 , 119 ac) via folded edges ( 123 a-d), and wherein one of the Side parts ( 119 c) is connected to the flat cardboard plate ( 113 ) via a further folded edge ( 123 ). 7. blister packaging according to claim 6, in which on the sides ( 119 , 119 a, b) which are not connected to the cardboard plate ( 113 ) by folded edges, sealing edges ( 118 , 118 a, b) for fixing the hood ( 112 ) are provided on the cardboard plate ( 113 ) by heat sealing or gluing. 8. blister pack according to one of the preceding claims, in which a lattice-like structure is formed by the arrangement of the viewing openings ( 14 , 34 , 54 , 74 , 94 , 114 , 134 ). 9. Blister pack according to one of the preceding claims, in which the viewing openings ( 14 , 34 , 54 , 74 , 94 , 114 , 134 ) are designed as punched holes. 10. Blister pack according to one of the preceding claims, in which the viewing openings ( 14 , 34 , 54 , 74 , 94 , 114 , 134 ) are circular, oval, rectangular, triangular, honeycomb-shaped or rod-shaped. 11. Blister pack according to one of claims 1, 5 or 8 to 10, in the hood and cardboard plate ( 133 ) are formed in two parts and in which the viewing openings ( 134 ) are provided in the cardboard plate ( 133 ).