EP1415933A2 - Strengthened Packaging - Google Patents

Abstract

The blank (1) contains a mesh layer (15) comprising a number of open elements which are woven and/or connected together multiple times. The mesh layer extends parallel to and is connected to the paper material (14a, 14b). The blank comprises a paper material, preferably cardboard.

Description

The invention relates to the packaging of packaged goods.

Depending on the nature of the packaged goods are different Requirements placed on packaging. At harmless Packaged goods, it is usually sufficient, the packaging so to design that the packaged goods do not during transport is damaged and that the packaging is the expected Transport loads withstands.

However, there are packaged goods that depend on the packaging from external influences far beyond the ordinary, to the Weight of the material to be packaged can. These include, for example, airbags, nowadays used as standard in motor vehicles. In particular at unusually high temperatures, as during a Fire can occur, the expansion of the airbag to be triggered. Due to the design, the expansion takes place within a very short time and can therefore in particular other parts of the packaging or the Packaging, in a dangerous way for the environment accelerate.

A way to avoid endangering the environment is to design the packaging so that the Packaged goods largely from the external influences is shielded. In particular, the packaging would have the Packaged goods are sufficiently resistant to heat isolate. However, such packages require high Development effort and are expensive to manufacture. In the Usually they have a high weight and / or volume.

Another option is to have a system of provide multiple packaging and / or fixations to within the packaging the goods exerted by the goods To let strain decrease, in particular the packaged goods enough space for expansion within the packaging Or to design the packaging so that: it withstands without deformation of the load. Also such Packaging is laborious and / or takes up a large volume on.

It is an object of the present invention to provide a Indicate packaging and a blank for packaging, the lowest possible weight and the lowest possible Manufacturing and cost burdens by a large Packing goods withstand and in particular in the In case of damage an expanding of packaged goods from the Can prevent packing out.

It is proposed to make a paper material, in particular Corrugated cardboard to combine with a net-like layer. The net-like layer has a gap-containing arrangement of elongated, often twisted together and / or connected elements. The paper material and the net-like layer extend at least in some areas parallel to each other, preferably on several sides of the manufactured or manufactured packaging.

Paper material has the advantage of being manufactured inexpensively to be able to and for packaging with almost any Shapes and sizes can be tailored. corrugated cardboard exhibiting paper material also has the advantage in low density relatively high loads to be able to withstand and the packaged effectively before To be able to protect damage.

The net-like position makes the combination even bigger Withstand loads. The situation is due to the net-like construction, at least within certain limits flexible and can therefore impacting objects over a Decelerate over a longer period of time than this Materials is the case. Therefore, those of the objects forces applied to the packaging are lower. Farther allow the gaps between the elements of the net-like Location a passage of expanding gases. This will be the load applied to the packaging impermeable packaging further reduced. Also has one net-like situation a particularly low weight and requires a very small amount of material. In addition, the net-like layer made of a resistant material (eg heat resistant material) and can, especially if the paper material is damaged or destroyed should be, still intact, z. B. in a fire or at Exposure to water. To achieve a lightweight construction and does not hinder the expansion of gases suggested that a dimension of the gaps of the net-like Location at least five times, preferably at least that ten times the width of the elements of the net-like layer is. The elements consist for. B. metal or tear-resistant plastic.

In one embodiment of the combination are the Paper material and the net-like layer connected to each other, in particular by at least one clip, preferably by a variety of brackets. Preference is given to parentheses Metal.

In a particularly preferred embodiment, the Paper material two layers (eg corrugated cardboard) on, between where the net-like layer is arranged. This way will the net-like layer while the paper material is intact held a desired position. In addition, the mesh-like situation covered on both sides and therefore can neither damaged, still interacting with objects or persons, especially if - as preferred - the Elements of the reticulated layer are made of metal and therefore free ends of the elements can cause injury.

In particular, at least part of each other twisted and / or connected elements threadlike or band-like. It is preferred that the mesh-like layer a Knitted fabric is from the elements. Such knits of metal for example, by Friedrich Karg GmbH, Weiboldshausener Straße 1, 91792 Ellingen, Germany distributed. The knitted fabrics can in particular one or be multi-threaded.

In particular, it is possible that the fabric in one Circumferentially closed looped (eg Knitted fabric) so that there are two opposing ones forms open ends. In particular, in this case, a Packaged goods are introduced from one of the open ends and is then enveloped by the fabric. Subsequently, the open ends are closed, leaving the wrapper closed on all sides. The combination of knitwear with the paper material can be before or after the introduction of the Packaged good are produced. This also applies to the Use of other net-like layers.

In a self-contained rotating knit exists also the option of knitwear along one of the two open-ended connecting line and then the To combine knitted fabric with the paper material. In this way a packaging blank can be produced which supports the has twice the width or length of the original knitted fabric.

A knitted fabric has the advantage that on the one hand in terms of its form is particularly flexible and on the other hand the individual elements are reliably wound together.

Those from the paper material and from the net-like situation produced packaging forms an at least in one Circumferentially circumferential encircling enclosure, the defines a packaging space for a packaged good. Preferably, the packaging is made of a corresponding one Cut made in the manner of a blank for Boxes of corrugated cardboard is stackable. To each other opposite sides of the blank is located respectively a closing edge. The cutting can be done later Time to the self-contained wrapping be joined together by the areas on the Closing edges are connected together. It will preferred that the areas overlap. alternative to however, such a blank may be as described above a circumferentially closed in itself circulating Knitted fabric can be used without cutting it.

If the blank is assembled at the closing edges, the same type of connection means is preferably used, with the also the net-like layer with the paper material can be connected or connected. Continue preferably not only the net-like layer to the Closing edges to a self-contained rotating Enclosure connected but using the same Lanyard also the paper material.

In addition to the mentioned components of a Packaging according to the invention is proposed, one in itself provide closed strapping, in particular from Metal band exists. In a continuing education extends the Strapping at least in a first circumferential direction, the transverse to a second circumferential direction, in which the net-like situation revolves in itself closed.

Furthermore, it is proposed that the above described Combination of a paper material with a net-like layer especially to use when packaging items, which can expand in the event of a claim. An example for such items are the said airbags.

Fig. 1

einen Zuschnitt für eine Verpackung,

Fig. 2

Teile eines Zuschnitts, ähnlich dem in Fig. 2 gezeigten Zuschnitt,

Fig. 3

eine aus dem in Fig. 2 gezeigten Zuschnitt hergestellte Verpackung,

Fig. 4

eine Verpackung mit Umreifungen,

Fig. 5

einen mehrlagigen Aufbau eines Zuschnitts für eine Verpackung,

Fig. 6

einen Teil einer netzartigen Lage,

Fig. 7

einen Querschnitt durch eine Anordnung mit mehreren Primärverpackungen und einer Sekundärverpackung und

Fig. 8

eine Außenansicht der in Fig. 7 dargestellten Anordnung.

In the following the invention will be explained in more detail by means of exemplary embodiments, which are shown schematically in the attached figures. The same reference numerals in the individual figures designate the same or functionally identical elements. In detail show:

Fig. 1

a blank for packaging,

Fig. 2

Parts of a blank, similar to the blank shown in FIG. 2,

Fig. 3

a packaging made from the blank shown in Fig. 2,

Fig. 4

a packaging with strapping,

Fig. 5

a multilayer construction of a blank for a packaging,

Fig. 6

a part of a net-like situation,

Fig. 7

a cross-section through an arrangement with multiple primary packaging and a secondary packaging and

Fig. 8

an external view of the arrangement shown in Fig. 7.

Fig. 1 and - in other dimensions - Fig. 2 show a multi-layer blank 1 for a package. The cut has four side parts 4a, 4b, 4c, 4d, each of which two side parts adjoin one another at a bend line. The Side parts 4a, 4b, 4c, 4d are for producing a Box 18 (Figure 3) along the fold lines by 90 degrees angled against each other. On opposite sides of the Side parts 4a, 4b, 4c, 4d are each a bottom part 3a, 3b, 3c, 3d and a cover part 5a, 5b, 5c, 5d via one in each case another crease line with the side part 4a, 4b, 4c, 4d connected. Define the side part 4a and the side part 4d in each case a closure edge 7a or 7b, which during manufacture the box 18 are put together.

At the locking edge 7b is a tab over a bend line 9 connected to the side part 4a. The tab 9 is at the Production of the box 18 by 90 degrees against the side part 4a angled and inboard, using a Plurality of brackets 12 connected to the side panel 4d. The side part 4d covers the flap over its entire surface. As will be described in more detail, the blank 1 a net-like layer 15 on. The layer 15 extends continuously over the entire blank 1, including the flap 9, so that via the brackets 12 at the closure edge 7a, 7b a Connection to the layer 9 in the region of the side part 4d is made and the net-like layer 15 in one closed circumferential, all side parts 4a, 4b, 4c, 4d enclosing cladding (closed network) forms. The same applies to two further layers 14a, 14b Corrugated cardboard. The closed network ensures that a force of matter arranged in the box on the side parts 4a, 4b, 4c, 4d without opening the closed network can be intercepted. Preferably the connection made by the clamps 12 is more resistant to tearing as the network in other areas.

The net-like layer 15 thus fulfills independently of the two Layers 14a, 14b a backup function.

In order also on the ceiling parts 5a, 5b, 5c, 5d forces exerted the following is proposed: If the Ceiling parts 5a, 5b, 5c, 5d as in Fig. 2 and Fig. 3 so are dimensioned that in the state of manufactured Box 18 opposing ceiling parts 5a, 5b, 5c, 5d do not overlap, another blank is made from a Layer 16 of paper material, in particular of corrugated cardboard, and a - in particular associated - net-like layer 17 (see Fig. 2) before closing the ceiling parts 5a, 5b, 5c, 5d placed on the packaging. Furthermore, also or Alternatively, such a further blank before filling the Box 18 are placed on the floor parts 3a, 3b, 3c, 3d. After the folding of the ceiling parts 5a, 5b, 5c, 5d and a optionally gluing the ceiling parts 5a, 5b, 5c, 5d with Tape is the box 18 as shown in Fig. 4 with at least one self-contained circumferential strapping 19c, 19d provided the ground, two opposite Side parts 4b, 4d and the cover of the box 18 straps. As shown in Fig. 4, may also or alternatively at least a strapping comprising the four side parts 4a, 4b, 4c, 4d 19a, 19b be provided. The strapping or strapping consist in particular of metal strip. The strapping will be like closed by itself known from packaging technology.

By the strapping 19c, 19d and the inserted blank with the layers 16, 17 are the floor and / or the ceiling Reliable against leakage of packaged goods or parts secured by it. An alternative is the soil and / or to design the ceiling in such a way that at least two at least opposing floor or ceiling parts partially - preferably over the entire surface - overlap. In this Case can be dispensed with the strapping 19c, 19d. Preferred are the overlapping parts but interconnected, in particular by means of the parts extending through brackets 12th

In another alternative, the parts overlap on Floor and / or on the ceiling and not at least two opposing parts connected to each other, for. B. again with parentheses. It can therefore be on the additional Blank 17, 18 and / or the strapping 19c, 19d omitted become.

The corresponding to the representations in Fig. 2 and Fig. 3 Blank has the number 0201 in the list of FEFCO (European Federation of Corrugated Board Manufacturers). A An alternative is, for example, a blank with the number 0203 with each other completely overlapping ceiling and Bottom parts.

As shown in Fig. 1, is located between adjacent Ceiling and floor parts each have a gap. Representative is a gap between the ceiling parts 5c, 5d with the Reference numeral 11 denotes. It is also shown that each at the opposite edges of the Ceiling parts 5c, 5d individual elements 21 of the net-like layer 15 protrude into the gap 11. This is due to the fact that the in Fig. 2 shown layers 14a, 14b of corrugated cardboard or Paper material are first manufactured in the usual way and then, as shown in Fig. 5, to a Sandwich structure are arranged, wherein - in this Embodiment - the mesh-like layer 15 between the Papiermateriallagen 14a, 14b is located. Subsequently, therefore the reticulated layer 15 each in the longitudinal direction of the gap eleventh severed.

Fig. 5 also shows by way of example how the layers 14a, 15, 14b be connected to each other by means of a clamp 12 can. The clamp 12, in particular made of steel strip exists, extends through the layers 14a in two places, 15, 14b through. The ends 13 of the clip 12 are at one a middle portion of the bracket 12 opposite Side bent and lie on the situation 14b.

As shown in FIG. 1, in each ceiling part 5a, 5b, 5c, 5d and each bottom part 3a, 3b, 3c, 3d respectively two or three of Brackets 12 available. To the flexibility of the netlike To be able to use position 15, the layers 14a, 15, 14b in Area of the side parts 4a, 4b, 4c, 4d not with each other connected. The total of nine brackets 12 to the Shutter edges 7a, 7b extend through the side part 4d and through the tab 9 therethrough.

In a particularly preferred embodiment, all Metal components of the blank or packaging, d. H. in particular the brackets 12, the strapping 19 and / or the Elements of the net-like layer 15 of a metal, which a melting point higher than 1000 degrees Celsius, preferably has at least 1100 degrees Celsius. That way you can Packaging can be provided, even at fire can absorb forces exerted by the packaged goods, or slow down or prevent leakage of the packaged goods can. This embodiment is used for the packaging of Airbags preferred.

Fig. 6 shows a partial view of a knit, which as mesh-like layer 15 can be used. The knit shows Threads 21a, 21b, 21c, which often wound together are, such. B. is shown at the points 22 where the thread 21a coming from the left is first placed over the thread 21b and then under (into the picture plane) the thread 21b extends through to form a mesh 23. On the right side of the mesh 23, the thread 21a extends first under the thread 21b and then over to the right. The other stitches are on the same way. At a complete knit is a variety of other threads provided in the corresponding Way the knitting pattern described and illustrated continue.

In a knitted fabric, the threads 21a, 21b, 21c Be sections of the same thread, or it may, for. B. a total of two or three threads are circular knit, d. H. one to form a self-contained, circulating knit. A Alternative is z. B. a wire mesh. As appropriate has in all cases the use of metal filaments with a Material width and / or a diameter of 0.15 to 0.4 mm, in particular from 0.25 to 0.3 mm proved. In this case is the knit or braid on the one hand sufficiently flexible and on the other hand able to absorb high forces. Also can the threads with simple means such. B. a pair of scissors be severed. Instead of threads can also band-like Metal elements are used for the net-like layer 15.

As a material for the elements of the net-like layer 15 stainless steels preferred for high temperature applications, in particular austenitic steels, e.g. B. the material no. 1.4828 (DIN EN 10088).

Fig. 7 and Fig. 8 show a further embodiment of a Packaging. On a pallet 25 is a plurality of Primary packaging 28 with packaging material contained therein arranged. The primary packages are on five sides (all Sides except the ground) from a net-like layer 15 or envelops. In particular so that no persons or Hook objects from the outside with the net-like layer 15 can, the net-like layer 15 is outside on the five Pages of a layer 14 of paper material, in particular of Corrugated cardboard, surrounded. As shown in Fig. 8, this arrangement is Outside by at least one in each case Circumferentially extending strapping 19a, 19b, 19c, 19d secured. The strappings 19a, 19b, 19c, 19d respectively run closed on three sides of the situation 15 and at the Bottom of deck boards of pallet 25 um.

With this from the range 25, the layers 14, 15 and the Strapping 19 made secondary packaging can the same Advantages achieved as in the previously described packaging be with the fuse against leakage of the Packaged good at the same time for several primary packaging and simultaneously with the attachment to the pallet 25 he follows. The packaging cost is therefore particularly low.

Claims (25)

Blank (1) for a packaging (18), with a paper material (14), in particular of corrugated cardboard, characterized by
a net-like layer (15) with a gap-containing arrangement of elongated, multiple twisted and / or connected elements (21), wherein the paper material (14) and the net-like layer (15) extending parallel to each other at least in partial areas and interconnected are. A blank according to claim 1, wherein the paper material is two Layers (14a, 14b), between which the net-like Position (15) is arranged. Blank according to claim 1 or 2, wherein the Paper material (14) and the net-like layer (15) at least one clip (12) are connected to each other, in particular by at least one metal clip. Blank according to one of claims 1 to 3, wherein at least part of the twisted and / or connected elements (21) is thread-like or ribbon-like and made of metal. Blank according to one of claims 1 to 4, wherein the net-like layer (15) a knitted fabric from the elements (21) is. Packaging (14, 15; 18), in particular of a blank according to one of Claims 1 to 5, with a paper material (14), in particular of corrugated cardboard, characterized by
a net-like layer (15) with a gap-containing arrangement of elongated elements (21) which are twisted and / or connected in many ways, wherein the paper material (14) and the net-like layer (15) extend parallel to each other at least in partial regions. Packaging according to claim 6, wherein the paper material (14) and the net-like layer (15) is self-contained Make up surrounding serving a packaging space defined for a packaged good. Packaging according to claim 7, wherein the paper material (14) and the net-like layer (15) are interconnected. A package according to any one of claims 6 to 8, wherein the Packaging has a self-contained strapping, in particular of metal strip (19). A package according to claim 9, wherein the strapping is in a first circumferential direction extending transversely to a second circumferential direction, in which the net-like Layer (15) turns closed. A package according to any one of claims 6 to 10, wherein the circumferential wrapping of the net-like layer (15) thereby in it is concluded that at opposite ends of the net-like layer (15) lying end portions together are connected. Packaging according to claim 11, wherein the compound with Lanyard (12) is made, which is also the net-like layer (15) with the paper material (14) combines. Packaging according to claim 11 or 12, wherein the interconnected end portions overlap each other. Packaging according to claim 6, wherein the multiple twisted and / or connected elements threadlike. Packaging according to claim 6 or 14, wherein the net-like Location is a knitted fabric from the elements. The package of claim 15, wherein the fabric is in a Circumferentially closed looped so that it forms two opposite open ends, which are designed, a packaged in the Knitted fabric and the knit fabric to the open To close ends. Packaging according to claim 16 with the packaged goods, wherein the packaged goods are introduced into the knitted fabric and the fabric is closed at the open ends. A package according to any one of claims 15 to 17, wherein the Knitted fabric is a metal. Using a combination of a paper material (14), in particular of corrugated cardboard, with a net-like layer (15), in particular with the characteristics of one of Claims 1 to 12, in the packaging of objects, wherein the mesh-like layer has a gap Arrangement of elongated, multiple with each other twisted and / or connected elements (21) and wherein the paper material (14) and the net-like Position (15) at least in partial areas parallel to each other extend. Use according to claim 19, wherein the combination is at the packaging is used by items that are in a case of damage. Use according to claim 20, wherein the combination for Packaging of an airbag is used. Use according to any one of claims 19 to 21, wherein the often entwined and / or connected Elements are thread-like. Use according to any one of claims 19 to 22, wherein the net-like layer is a knitted fabric from the elements. Use according to claim 23, wherein the fabric is in a Circumferentially closed looped so that it forms two opposite open ends, wherein a packaged product is introduced into the fabric and wherein the fabric is closed at the open ends becomes. Use according to claim 23 or 24, wherein the knit a knitted fabric is made of metal.

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