EP1355835B1 - Cigarette packaging, method and device for the production thereof - Google Patents

Abstract

In the case of a (soft) pack for cigarettes, the blank ( 10 ) made of paper or similar material is provided, adjacent to an end wall ( 16 ), with a multi-layered folding strip ( 21 ) running all the way round. In order that inner layers can be connected to outer, covering layers via glue-spot of glue ( 20 )-a round cutout ( 29 ) made by punching is provided, the spot of glue ( 20 ) being positioned in the region of said cutout. A special feature is constituted by the production of blanks ( 10 ) for such a pack.

Description

The invention relates to a pack, in particular cigarette pack, with a the package contents surrounding blank of foldable packaging material, such as paper, foil, cardboard or the like, the multilayer in a subarea is formed and due to folding edge has an overlap, wherein an internal folding flap with an external folding flap by glue is connected and the glue through a recess in an intermediate lobe passes. Furthermore, the invention relates to a method for producing such Packs and an apparatus for carrying out the method.

Primarily, the invention relates to packages in the execution of DE 198 37 469 A1. In this one of a single blank of paper or the like existing pack is adjacent to an end wall a multilayer, namely arranged on the basis of a Z-shaped fold formed folding strips. in the Area of a narrow, upright side wall results in an overlap also the Z-fold. In the known package is one in the embodiment formed triangular recess, which allows an outer lobe The folding with an inner lobe by glue to connect, where the glue is in the area of a recess of intermediate lobes.

The invention is based on the object packages of the type mentioned continue to develop and improve, especially the design and manufacture of cigarette packs in the execution of DE 198 37 469 A1 improve.

To solve this problem, the package according to the invention is characterized in that that the recess in the blank or in the intermediate lobes by a Overall rounded punch cut is limited.

A round, in particular elongated, for example (approximately) oval punched cut gives an opening that is favorable in terms of tear behavior. Furthermore Such a recess can easily by a corresponding punching tool getting produced.

Another special feature is that the formed during punching Material piece is not removed as waste, but over a residual connection with the blank is related and by folding out of the region of the recess taken out.

The method of making packages with a rounded punched cut limited recess is the subject of claim 5. Claim 9 relates to the device for producing blanks for packages with rounded Recesses and one about a residual connection with a material web for the production of the blanks connected punching piece.

Fig. 1

eine Zigarettenpackung in perspektivischer Ansicht,

Fig. 2

einen oberen, stimseitigen Bereich der Packung gemäß Fig. 1 in vergrößertem Maßstab,

Fig. 3

einen Vertikalschnitt durch einen oberen, stimseitigen Eckbereich der Packung gemäß Fig. 1 in nochmals vergrößertem Maßstab,

Fig. 4

einen Horizontalschnitt durch die Einzelheit gemäß Fig. 3 in der Schnittebene IV-IV,

Fig. 5

einen Abschnitt einer Materialbahn zum Herstellen von Zuschnitten,

Fig. 6

einen von der Materialbahn gemäß Fig. 5 abgetrennten Zuschnitt,

Fig. 7

einen Abschnitt einer Materialbahn gemäß Fig. 5 in schematischer Seitenansicht,

Fig. 8

einen Ausschnitt der Materialbahn gemäß Fig. 5 im Bereich eines Stanzschnitts, stark vergrößert,

Fig. 9

einen fertigen Zuschnitt ohne Faltstreifen,

Fig. 10

den Zuschnitt gemäß Fig. 9 nach Anbringen von Faltsireifen.

Other features of the invention will be explained in more detail with reference to the drawings. In these shows:

Fig. 1

a cigarette pack in perspective view,

Fig. 2

an upper, end-side region of the package according to FIG. 1 on an enlarged scale,

Fig. 3

2 shows a vertical section through an upper, corner area of the pack according to FIG. 1 on a further enlarged scale,

Fig. 4

a horizontal section through the detail of FIG. 3 in the section plane IV-IV,

Fig. 5

a portion of a web for making blanks,

Fig. 6

one cut from the web of FIG. 5 cut,

Fig. 7

a section of a material web according to FIG. 5 in a schematic side view,

Fig. 8

5 shows a section of the material web according to FIG. 5 in the region of a punched cut, greatly enlarged,

Fig. 9

a finished blank without folding strips,

Fig. 10

the blank of FIG. 9 after attachment of folding tires.

The drawings deal with a (cigarette) pack essentially in the Execution according to WO 00/10877. The cuboid pack consists of a blank 10 made of paper or paper-like material. The cuboid pack forms a large-scale front wall 11, an opposite rear wall 12, two narrow upright side walls 13, 14 and bottom wall 15 and end wall 16.

The side wall 14 consists of two overlapping edge strips of the blank 10, namely a (wider) outer strip 17 and a narrower inner strip 18. outer strip 17 and inner strips 18 are to form the side wall fourteenth interconnected, by gluing, concretely by glue points 19, 20.

The package or its blank 10 has a circumferential folding strip, and a Z-folding strip 21. This is by Z-shaped folding a blank strip 22 formed. This is folded along an approximately central Z-fold edge 23, such that in the region of the Z-fold strip 21 three layers of the blank 10 to each other lie. It is an inner tab or inner leg 24 to a Intermediate lobe or intermediate leg 25 and an outer lobe or outer leg 26. The respective legs or material strips of the Z-fold strip 21 are on the one hand from the Z-folding edge 23 and on the other hand of fold lines 27 as a transition into the End wall 16 and limited as a fold line 28 as a transition into the outer leg 26. The latter is each upper part of front wall 11, rear wall 12 and side walls 13 and 14.

To connect the edge strips, namely outer strip 17 and inner strip 18, are the glue points 19, 20 spaced from each other on the outside of the inner strip 18 arranged. The upper glue point 20 is located in the region of the Z-fold strip 21 and should connect the inner strip 18 with the outer strip 17. To the multilayered To overcome construction, the outer strip 17 in the region of the Z-fold strip 21 with a recess 29 which is positioned and formed so that the glue point 20 is a connection between the outer leg 26 of the inner strip 18 and the outer leg 26 of the outer strip 17 produces. The recess 29 extends for this purpose in the area of intermediate layers, namely in the area of the inner thigh 24 and the intermediate leg 25 of the outer strip 17 associated Z folding strip 21.

The recess 29 is formed and arranged in a special way. In particular seen from Fig. 8, the recess 29 is a total of a rounded Contour, namely surrounded by a corresponding round punched cut 30. This is elongated in the direction transverse to the Z-fold strip 21, approximately oval.

Another special feature is that a separate from the punching cut 30 Material piece or punching piece 31 via one (or more) residual connections 32 remains connected to the blank 10. For release or formation of the recess 29, the punched piece 31 is folded over, so that it next to the recess 29 at the Inside the blank 10 is applied (Fig. 10). The recess 29 is located on Edge of the blank 10, namely the outer strip 17 and extends approximately over the full width of the Z-fold strip 21, thus capturing the inner leg 24 and intermediate leg 25 of the Z-fold.

Another special feature is the production of a blank 10. The blanks 10 are separated from a continuous material web 33. First, the Stanzschnitte 30 attached to the flat material web 33, in a precise Position with regard to the blank 10 to be produced Die cuts 30 each in the range of subsequently performed transverse Dividing section 34 (shown as a transverse perforation line) attached Diecuts 30 are off-center to the web 33, namely in the region of the produced Z-folding strip 21. The punching is positioned so that the remaining connection 32 lies in the conveying direction of the material web 33 at the back to the recess 29. The punching cut 30 is designed so that in this area a rectilinear, transverse section is formed to create a corresponding fold line when folding the Stamped piece 31.

After punching, the punching piece 31 is out of the range during the conveying movement the recess 29 folded out, and against the conveying direction of the Material web 33, to rest on the web 33. For this purpose, a special Faltmaßnahme performed, which results in particular from Fig. 7. The material web 33 is deflected in this area, here at an obtuse angle via a deflecting roller 35. The material web 33 follows the contour of the deflecting roller 35, while the punching piece 31 due to the material property transversely or approximately tangentially is directed. A stationary folding member, here one above the material web 33 arranged Faltwalze 36, sets the punch 31 as a result of the relative movement of the web 33 automatically counter to the conveying direction in a backward direction Position.

Now the folding strip 21 is attached to the further conveyed material web 33, namely the Z-fold. Thereafter, the blank 10 is separated by the cut 34 from the web 33 divided, wherein the separating section 34 by the recess 29 off-center is passed. It thus arises at the back of the blank 10 in the region of Z-folding strip 21 a small part recess 37th

The blank 10 is now folded around the package contents, wherein in the area of Side wall 14, the adhesive bond is made.

In the present embodiment, the area of the bottom wall 15 is double-layered formed, due to a double-layer edge strip 38 of the blank 10. This edge strip is also mounted in the region of the material web 33, and while simultaneously with the Z-fold.

LIST OF REFERENCE NUMBERS

10

cut

11

front wall

12

rear wall

13

Side wall

14

Side wall

15

bottom wall

16

end wall

17

outer strip

18

interior strips

19

spot of glue

20

spot of glue

21

Z-fold strip

22

cutting strips

23

Z-fold

24

inner thighs

25

intermediate leg

26

outer leg

27

fold line

28

fold line

29

recess

30

chad

31

slug

32

residual connection

33

web

34

separating cut

35

deflecting

36

folding roller

37

partial recess

38

edge strips

Claims (9)

1. Pack, in particular cigarette pack, having a blank (10) which encloses the pack contents, is made of foldable packaging material, such as paper, film, cardboard or the like, is of multi-layered design in a sub-region and, as a result of folding, has a border-side overlap, an inner folding tab being connected to an outer folding tab by glue and the glue passing through a cut-out (29) in an intermediate tab, characterized in that the cut-out (29) in the blank (10) or in the intermediate tab is bounded by a punch cut (30) which is rounded overall.
2. Pack according to Claim 1, characterized in that the cut-out (29) is elongate, in particular of more or less oval design, in the vertical direction of the pack.
3. Pack according to Claim 1 or 2, characterized in that a piece of material or punched segment (31), which has been punched out of the blank (10) by the punch cut (30) in order to form the cut-out (29), is connected to the blank (10) via a residual connection (32) and is folded out of the region of the cut-out (29).
4. Pack according to Claim 1 or one of the further claims, characterized in that the blank (10) has the cut-out (29) in the region of an outer strip (17) for forming a side wall (14), to be precise in an inner leg (24) and an intermediate leg (25) of the Z-fold strip (21), the cut-out (29) being open in the direction of the free border by virtue of a severing cut (34) being positioned in the region of the cut-out (29).
5. Process for producing packs according to one or more of the Claim 1 to 4, in the case of which pack contents are enclosed by one blank (10) which is made of foldable material, in particular paper, film or cardboard, and which is of multi-layered design in a sub-region and, as a result of folding, has a border-side overlap in whose region an inner folding tab is connected to an outer folding tab by glue and the glue passing through a cut-out (29) which is bounded by a punch cut (30) which is rounded overall in an intermediate tab, the blank being severed from a continuous material web (33) and having at least one multi-layered folding strip (21), which is directed transversely and/or extends in the direction of the material web (33), characterized by the following features:

   a) the cut-out (29) is made by punching into the continuous material web (33) in accordance with the position of the cut-out (29) in the blank (10),

   b) the material web (33) is then folded continuously in the longitudinal direction in order to form the folding strip (21),

   c) the blanks (10) provided with the folding strip (21) are then severed by a transverse severing cut (34) from the continuous material web (33) in a precisely positioned manner and folded around the pack contents,

   d) the severing cut (34) runs through the cut-out (29) to form differently sized sub-cut-outs which are open in the direction of one border of the blank (10),

   e) the blank (10) is then folded around the pack contents.
6. Process according to Claim 5, characterized in that the cut-out (29) is formed by a round interrupted punch cut (30) such that a piece of material or punched segment (31) is connected to the blank (10) via a residual connection (32).
7. Process according to Claim 6, characterized in that, prior to the formation of the folding strip (21), the punched segment (31), which is connected to the blank (10) via the residual connections, is folded over, the cut-out (29) being released in the process, until it butts against the blank (10), in particular into a position on that side of the cut-out (29) which is located opposite the free lateral border of the blank (10).
8. Process according to Claim 7, characterized in that the punched segment (31) is folded over, during the transport of the material web (33), counter to the conveying direction of the material web (33), in particular in the region of a deflection of the material web (33).
9. Process for producing blanks for packs according to one or more of the Claim 1 to 4, in the case of which pack contents are enclosed by one blank (10) which is made of foldable material, in particular paper, film or cardboard, and which is of multi-layered design in a sub-region and, as a result of folding, has a border-side overlap of an inner folding tab and an outer folding tab connected to said inner folding tab by glue, with the glue passing through a cut-out (29) which is bounded by a punch cut (30) that is rounded overall in an intermediate tab, and an overall round punched segment (31), which is formed by a punching tool, in the region of the cut-out (29) being connected to a material web (33) via a residual connection (32) for the purpose producing the blanks, characterized in that the material web (33) is guided over a deflecting element, in particular over a deflecting roller (35), such that, on account of the material properties, the folding tab or the punched segment (31) is directed at an angle to the material web (33) in the region of the deflection, and in that the punched segment (31) can be folded over against the material web (33) by a folding element arranged in the region of the deflection, in particular a stationary folding roller (36).

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