DE10106548A1 - Blank sheets and boxes made therefrom, in particular for cigarettes - Google Patents

Abstract

The invention relates to cut sheets (10) and packets produced therefrom, in particular cigarette packets, the four longitudinal edges and four horizontal main edges thereof, all rounded off or chamfered, by means of folded regions with two or more fold lines. At the junction of various folded regions one of the mutually coincident folded regions terminates in a circular arc section of about 45 DEG to 90 DEG and the other in an S-curve.

Description

The present invention relates to a blank sheet as well boxes made therefrom, such as, in particular, as Packaging for cigarettes can be used.

Cigarettes are usually packaged in either soft cup packs gene or in hard cup packs, for example in folding lid boxes or hinge-lid boxes, but also in so-called rigid soft packs without hinged lid on the Brought to the market. It is the same with the hard cup packs known to round corners and edges, thereby the pockets to protect the consumer. For example, the DE 29 40 797 A1 for this purpose a cigarette box, u. a. of the hinge-lid type, in which all corners and edges are rounded are. However, this German laid-open publication discloses not how this box can be made.

EP 0 764 595 A1 describes a cigarette box of the hinge-lid type, the four horizontal main edges of which are chamfered or rounded. Corresponding cut sheets are also shown for producing these edges. This European publication also contains a reference to US 2 523 251 (lines 51 to 54 in column 4 of EP 0 764 595 A1) and thus also the combination of the rounded or beveled horizontal edges of EP 0 764 595 A1 with the beveled longitudinal edges of the US 2 523 251. Again, however, there is no indication of how to manufacture this particular embodiment.

In fact, the manufacture of a box, in particular a cigarette hinged lid box with all corners as well the longitudinal edges and horizontal main edges are rounded or beveled, from a single blank sheet problema table.

The object of the present invention is therefore the ready provision of an easy-to-produce blank sheet Production of a box, especially a cigarette hinged lid box, in which all longitudinal edges and the horizontal main edges and the corners as much as possible are rounded or beveled.

The solution to this problem is a cut sheet made of foldable material to form a cuboid box, which is closed on at least 5 sides, two diametrically opposed main surface fields in the cuboid box to be formed and a bottom field connecting them being arranged in a straight line in the cut sheet and the sides , which lie in the cuboid box to be formed on the two diametrically opposed main surface fields and on the floor field connecting them, are formed by side surface fields which protrude laterally from the two main surface fields, and wherein edges of the two diametrically opposed in the cuboid box to be formed Main areas are formed by Faltbe rich, characterized in that

• - Two fold areas at (preferably the lower) corners of the both diametrically in the cuboid box to be formed opposite main areas meet and
• - that of two (preferably essentially rectangular) colliding folding areas one by one Circular arc segment from about 45 ° to 90 °, preferably 65 ° to 80 °, and the other is limited by an S-curve, whereby the S-curve towards the corner of the main surface fields Circular arc segment nestles and
• - That the folding areas preferably by two or several adjacent, essentially parallel fold lines be formed.

Preferred is a blank sheet as defined above with a first main surface field with a left and right first side surface field, wherein

• - at the upper edge of the first main area Bodenfeld and a second to the upper edge of the Bodenfeld Main area field with a left and right second side area field connects,
• - the blank for horizontal and vertical folding areas has, namely a 1st and 2nd horizontal folding area between the first main surface field and the ground field and the ground field and the second main surface field and 1st to 4th vertical fold areas between the left first page area field and the first main area field, the first Main area and the right first side area, the left second side panel and the second main panel field as well as the second main area and the right second side surface field,
• - the 1st horizontal fold area at the upper corners of the first Main area with the 1st and 2nd vertical folding area meets and
• - The 2nd horizontal folding area at the lower corners of the second main area with the 3rd and 4th vertical Folding area meets each other.

The cutting sheet described above can be easily Modify existing machines accordingly for the production of cut sheets. By usual Folding and gluing results in a hard cup pack, which consists of only one box part, one into one Inner-liner cigarette group used can. The box size is usually dimensioned so that that the cigarette group is firmly in the box and on top, open end something sticks out to the consumer to allow the box to open and the cigarettes to remove.

As a rule, however, the box is next to the box part also have a lid part so that a common hinge-lid Box results.

In order to obtain this usual hinge-lid box, the cutting sheet described above has additional fields, namely a third main surface field with a left and right third side surface field following the second main surface field, with a top field on the upper edge of the third main surface field and a fourth main surface field with left and right side surface fields adjoins the upper edge of the top field, and wherein

• - the cutting sheet further horizontal and vertical Has fold areas, namely a 3rd and 4th horizontal Folding area between the third main area and the Top panel and top panel and fourth Main area and 5th to 8th vertical folding areas between the left third side panel and the third Main area, the third main area and the right third side panel, the left fourth side panel field and the fourth main area and the fourth main area field and the right fourth side area field,
• - the 3rd horizontal folding area at the upper corners of the third main area with the 5th and 6th vertical Folding areas meet and  
• - The 4th horizontal fold area at the lower corners of the fourth main area with the 7th and 8th vertical Folding areas meet.

Advantageously, the blank sheet besides the be fields in addition to the lower edges of the lin ken and right second side panel fields left and right second side surface field flaps as well as on the upper edges of the left and right third side panel fields left and right te third side surface field open up. These side faces Field flaps serve to reinforce the soil and the de ckels of the finished box.

It is preferably located on the upper edge of the fourth main surface area is a reinforcement field that is used in the manufacture the box on the inside of the fourth main area which is glued and also used for reinforcement.

The usual materials for Hinge-lid boxes are used, e.g. B. paper or card clay, optionally coated, and plastic, plastic wrap or plastic laminate, preferably wide web paper or wide web carton.

The fold lines can either be grooves or, preferably, Be scratch lines and preferably extend over the total length and width of the box.

To produce grooves, the relevant points on the blank are pressed in by a grooved body. On the opposite side there is a creasing channel into which the material of the blank can be pressed. In the case of grooves running in parallel, a wavy cross section is produced in accordance with the method described. This method is described, for example, in US 2,523,251 and the result is shown in FIG. 2 thereof. When the blank that has been processed in this way is folded up, the round (if there are several grooves) round or (if there are two grooves) chamfered edges of the pack are then automatically formed along the grooves.

The disadvantage here is that due to the inherent stiffness and the restoring forces of the packing material Gluing to produce the pack is not without problems is. This is usually done in overlapping areas of the blank sheet that form the side walls of the box. These are due to the rounded or beveled edges overlapping areas significantly reduced compared to one normal z. B. hinge-lid box, so that only a limited Amount of glue can be applied. The consequence is that the machine production is slowed down because longer must be waited until the relatively small amount of Adhesive has dried well, otherwise the box open again through the restoring forces of the material would.

This is particularly pronounced if Breitbahn cardboard or -Paper for the production of e.g. B. Hinge-lid box is used. When making paper or cardboard the product-forming material on a fast moving Tape discarded. This causes the long fibers in the The material is preferably oriented in the longitudinal direction. ever after whether the cutting sheet laterally or laterally from the finished material web is cut, are the long fibers in the blank sheet transverse to the longitudinal axis of the blank sheet (Long grain) or along the longitudinal axis of the cutting sheet (Narrow web) arranged. The orientation of the fibers across Longitudinal direction of the wide web blank sheet results in a good one Bendability around the transverse axis, but poor bending availability around the longitudinal axis. The restoring forces for the side gluing is therefore stronger than with narrow web Cutting sheets in which, due to the reversed position of the long fibers in the material the exact opposite are. On the other hand, however, are preferred for hinged boxes Broadband cut sheets are used because they increase the stability of the  Lid (no slanted closure, no easy tearing of the Lid), the rigidity of the pack due to a higher stock cross-direction and flatness of the pack, d. H. the least possible curvature of the pack compared to the Favor use of narrow web materials significantly.

By using scoring lines as opposed to scoring the restoring forces are surprisingly clear reduced, so that Breitbahn materials easily and quickly can be used to manufacture the boxes without that it's too small because of the available space Problems with gluing the box is coming.

A scoring knife is used to produce scoring lines Thickness of the material forming the package is reduced. For this the blank is placed on a smooth surface and edited with a scoring knife so that it is next to a Compression can also occur to remove material. ever depending on the shape of the scoring knife, for example, a v or U-shaped cross section. Since the document is not like that Process for producing grooves on the scoring knife opposite channels has channels, but rather a smooth surface, there is a reduction in thickness and not like the grooves for deformation without thickness reduction.

The degree of thickness reduction depends on the one used Material and from the affected folding area. scribe lines vertical folding areas are preferred by a 10-80% as 30-70%, very particularly preferably 40-60% and, for example. 50% reduction in the thickness of the paper or cardboard det, scratch lines of horizontal fold areas by a 10-50%, preferably 20-40% and for example about 30% reduction in thickness of paper or cardboard.

Scribe lines are also for a second reason for the inventions cutting sheets according to the invention preferred. You have that  Advantage that if they are on the inside of the finished Pack are, the outside completely intact and unbe works looks and therefore a better visual appearance offers consumers what when using grooves not possible.

The extent and type of rounding can be determined by the number of fold lines and their distance from one another. 6 to 8 , in particular 7, fold lines are preferred per fold region, which are located at a distance of approximately 1 mm from one another. When folding, a box with rounded edges is created; the radius of the curve then corresponds approximately to that of a commercially available cigarette. Also preferred are two fold lines per fold area, which are located at a distance of 6 to 8 millimeters, in particular approximately 7 millimeters. When folding, a box with bevelled edges is created.

Because of the uniform visual appearance of the box it is further preferred that all of the fold areas be the same Show number of fold lines.

For the meeting of the vertical and horizontal Folded areas, it is preferred that the end of the circular arc and the end of the S-curve diverge at right angles and lie parallel to the edges of the main surface fields, because this way a smooth transition between the different folding areas is possible.

The circular arc segment and the S curve are preferably not or only at the corner of the main areas with each other connected. In principle, it is also possible that a at least partially connection between circular arc segment and S curve exists when folded to form the box however, it then occurs in the transition area between the two different folding areas for upsets and irregularities regularities.  

It is further preferred that at least one fold area be on both ends either by an arc segment or an S- Curve is limited, as is preferred for all Folding areas essentially at both ends meet other folding areas at right angles, both ends of the these fold areas either through the circular arc segment or the S curve are limited. Finally, it is preferred that all fold areas lying parallel to each other ent do not end with an arc segment or an S-curve SEN. In all three cases, this leads to better opti impression.

The cutting sheets are produced in a known manner. I.e. the cutting sheets are made from sheets of cutting sheets material stored on rolls, unwound and be prints, preferably as wide web cut sheets. It follows usually a step in which the cut sheets are used a scoring knife or scoring body in the manner described treated and simultaneously punched and / or cut and if necessary. By usual folding and gluing on the side surfaces is then mechanically finished z. B. room receive a box, usually one in one Contains innerliner wrapped cigarette group. In invent hinge-lid boxes according to the invention are usually also a Usual collar part used in the open chess something out of the inside of the front of the box stands and has a recess that grips the in the Box of cigarettes.

The invention is further illustrated by an embodiment explained for example. It shows:

Fig. 1 shows a blank according to the invention for the manufacture of a hinge-lid cigarette box and

Fig. 2 is a view of detail Y in FIG. 1.

A first main surface area 20 can be seen, which corresponds to the front wall of the box part of the box tel in the finished box, with its adjacent side surface areas 22 and 24 . Between the left first side surface panel 22 and the first main surface field 20 and the first main surfaces of frame 20 and the right first side surface panel 24 are a 1st and 2nd vertical folding region 90 and 91, which are formed here by 7 scribe lines 100 and the upper at its Have a quarter circle at the end.

At the first main surface area 20 , the bottom field 30 follows at the top, followed by the second main surface area 40 . Between the first main surface area 20 and the floor area 30 there is the 1st horizontal folding area 80 , between the floor area 30 and the second main area area 40 the 2nd horizontal folding area 82 . These two horizontal folding areas 80 and 82 are just in case formed by seven scoring lines 100 , each of which shows an S-shaped line at its ends. The second main surface area 40 , which corresponds to the rear side of the box part in the finished box, is flanked by the left two th side surface area 42 with the left second side surface area flap 46 and the right second side surface area 44 with the right second side surface area flap 48 located thereon. In between are a 3rd and 4th vertical fold area 92 and 93 .

The third main surface area 40 is adjoined by the third main surface area 50 , to which the lid rear wall corresponds in the finished box. The main surface areas 40 and 50 are separated from the fold line 12 , about which the lid of the finished box can be pivoted. Between the third main surface area 50 and the left third side surface area 52 with the left third side surface area thereon flap 56 on the one hand and the right third side area field 54 with the right third side surface area flap 58 on the other hand there are the 5th vertical folding area 94 and the 6. Vertical folding area 95 . The vertical fold areas 92 and 93 and 94 and 95 are separated from one another by incisions which can extend to the fold line 12 or even further.

At the top of the third main surface area 50 is the cover area 60 , which in turn is followed by the fourth main area area 70 . Between the third main surface area 50 and cover area 60 there is the 3rd horizontal folding area 84 , between the cover area 60 and the third main area area 70 the 4th horizontal folding area 86 , which in turn, like all other folding areas, is formed by 7 scoring lines 100 .

The left fourth side surface field 72 , the right fourth side surface field 74 with the 7th and 8th vertical folding regions 96 and 97 in between and the reinforcement field 72 are grouped around the fourth main surface area 70 . Because of its somewhat smaller dimensions, this reinforcement field 72 has only four scoring lines 100 .

The vertical and horizontal folding areas meet at the corners of the main area fields, for example the vertical folding areas 90 and 91 with the horizontal folding area 80 at the upper corners 21 and 23 of the main area area. The vertical folding areas end in the embodiment of FIG. 1 in a quarter curve, which on the one hand smoothly merges into the upper edge of the adjacent side surface field and on the other hand smoothly into the outer edge of the respective main surface field. The horizontal folding areas end in S-curves, which merge smoothly into the outer edges of the adjacent main surface area on the one hand and the adjacent floor area or top area area on the other.

In addition to the scoring lines 100 of the different folding areas, further folding lines can be seen, such as the folding line 12 between the second 40 and third 50 main surface area, the folding lines 77 in the reinforcement area 72 , and the folding lines 55 and 45 , around which the side surface area flaps can be pivoted.

To manufacture the cigarette box, the side surface panels 42 and 44 can first be folded upwards by 90 ° and the side surface panel flaps 46 and 48 located thereon can likewise be folded inwards by 90 °. Then the lower part of the blank 10 with the bottom panel 30 and the first main panel 20 is folded up 90 °, whereby the side panel flaps 46 and 48 come into contact with the bottom panel 30 and are glued. If the first main area 20 is folded further (by 90 °), the side areas 22, 42 and 24, 44 come to lie one above the other and can be glued so that the lower part of the box, the box part, is finished. In a similar manner, the upper part, the lid part, the box is manufactured, ie the side surface panel flaps 56 and 58 are glued to the upper side panel 60 . The reinforcement panel 72 is glued inward onto the fourth main surface panel 70 and then the side surface panels 52 , 72 and 54 , 74 are glued together. The scoring lines 100 are therefore located on the inside of the finished box and cannot be recognized by the consumer from the outside.

The hinge-lid obtained in the folding described Box has rounded longitudinal edges. The four too main horizontal edges are rounded. By working together meet of circular arc segment and S curve at the ends of the There is a smooth transition between the fold areas Folded areas and all 8 corners of the box are on this Way rounded.

The meeting of the circular arc segment and the S curve is shown enlarged in the detailed view of FIG. 2. The vertical folding areas 91 and 93 each end in a circular arc segment of approximately 60 to 70 °, the horizontal folding areas 80 and 82 in an S curve. Circular arc segments and S-curve lie against each other without connection and meet at corner points 23 and 43 .

Claims (15)

1. Cutting sheet ( 10 ) made of foldable material to form a cuboid box, which is closed on at least 5 sides, two diametrically opposed main surfaces in the box to be formed cuboid box ( 20 , 40 ) and a connecting bottom panel ( 30 ) in the cutting sheet ( 10 ) are arranged in a straight line one after the other and the sides which are in the cuboid box to be formed on the two diametrically opposite main surface fields ( 20 , 40 ) and on the floor field ( 30 ) connecting them, by side surface fields (22, 24 , 42, 44) are formed which protrude laterally from the two main surface areas ( 20 , 40 ), and wherein edges of the two main surface areas ( 20 , 40 ) diametrically opposite each other in the cuboid box to be formed are formed by folded areas, characterized in that
two fold areas meet at corners of the two main surface areas ( 20 , 40 ) lying diametrically opposite in the cuboid box to be formed and
that of two collapsing folding areas, one is delimited by an arc segment of approximately 45 ° to 90 ° and the other by an S curve, the S curve nestling towards the corner of the main surface areas ( 20 , 40 ) towards the arc segment. 2. Cutting sheet ( 10 ) according to claim 1, characterized in that the fold areas are formed by two or more adjacent, substantially parallel fold lines. 3. Cutting sheet ( 10 ) according to one of claims 1 or 2 with a first main surface area ( 20 ) with a left and right first side surface area ( 22 , 24 ), wherein
a bottom panel ( 30 ) adjoins the top edge of the first main surface panel ( 20 ) and a second main panel panel ( 40 ) with a left and right second side surface panel ( 42 , 44 ) adjoins the top edge of the bottom panel ( 30 ),
the blank ( 10 ) has horizontal and vertical fold areas, namely a 1st and 2nd horizontal fold area ( 80 , 82 ) between the first main surface area ( 20 ) and the floor area ( 30 ) and the floor area ( 30 ) and the second main area area ( 40 ) and 1st to 4th vertical folding areas ( 90 , 91 , 92 , 93 ) between the left first side surface area ( 22 ) and the first main area area ( 20 ), the first main area area ( 20 ) and the right first side area area ( 24 ), the left second side surface field (42) and the second main surface field ( 40 ) and the second main surface field ( 40 ) and the right second side surface field ( 44 ),
the 1st horizontal folding area ( 80 ) meets at the upper corners ( 21 , 23 ) of the first main surface area ( 20 ) with the 1st and 2nd vertical folding area ( 90 , 91 ) and
the second horizontal folding area ( 82 ) meets at the lower corners ( 41 , 43 ) of the second main surface area ( 40 ) with the 3rd and 4th vertical folding area ( 92 , 93 ). 4. Cutting sheet ( 10 ) according to claim 3, characterized in that a left and right second side surface field flap ( 46 , 48 ) adjoins the lower edge of the left and right second side surface field ( 42 , 44 ). 5. Cutting sheet ( 10 ) according to claim 3 or 4, characterized in that, on the upper edge of the second main surface field ( 40 ), a third main surface field ( 50 ) with a left and right third side surface field ( 52 , 54 ), on the upper edge of the third Main surface field ( 50 ) is connected to a top surface field ( 60 ) and to the top edge of the top surface field ( 60 ) is a fourth main surface field ( 70 ) with left and right side surface fields ( 72 , 74 ), whereby
the blank sheet ( 10 ) has further horizontal and vertical folding areas, namely a 3rd and 4th horizontal folding area ( 84 , 86 ) between the third main area ( 50 ) and the top area ( 60 ) and the top area ( 60 ) and the fourth main area ( 70 ) and 5th to 8th vertical folding areas ( 94 , 95 , 96 , 97 ) between the left third side surface area ( 52 ) and the third main area area ( 50 ), the third main area area ( 50 ) and the right third side area area ( 54 ), the left fourth side surface field ( 72 ) and the fourth main surface field ( 70 ) and the fourth main surface field ( 70 ) and the right fourth side surface field ( 74 ),
the 3rd horizontal folding area ( 84 ) meets at the upper corners ( 51 , 53 ) of the third main surface area ( 50 ) with the 5th and 6th vertical folding areas ( 94 , 95 ) and
the 4th horizontal folding area ( 86 ) meets at the lower corners ( 71 , 73 ) of the fourth main surface area ( 70 ) with the 7th and 8th vertical folding areas ( 96 , 97 ). 6. cutting sheet ( 10 ) according to claim 5, characterized in that on the upper edge of the left and right third side surface field ( 52 , 54 ) a left and right third side surface field flap ( 56 , 58 ) and on the upper edge of the fourth main surface field ( 70 ) connects a gain field ( 72 ). 7. cutting sheet ( 10 ) according to any one of claims 1 to 6, characterized in that the foldable material is wide web cardboard or wide web paper. 8. blank ( 10 ) according to claim 7, characterized in that the fold lines are scored lines ( 100 ). 9. cutting sheet ( 10 ) according to claim 8, characterized in that the scoring lines ( 100 ) of the vertical folding areas by a 10-80%, in particular a 40-60% thickness reduction of the paper or cardboard and the scoring lines ( 100 ) the horizontal fold areas are formed by a 10-50%, in particular a 20-40% reduction in the thickness of the paper or cardboard. 10. Cutting sheet ( 10 ) according to one of claims 1 to 9, characterized in that the end of the arc segment and the end of the S curve run at right angles apart and are parallel to the edges of the main surface areas ( 20 , 40 , 50 , 70 ) , 11. Cutting sheet ( 10 ) according to one of claims 1 to 10, characterized in that the ends of at least one folding area are both delimited either by the circular arc segment or the S curve. 12. cutting sheet ( 10 ) according to any one of claims 1 to 11, characterized in that in all folding areas that meet at both ends at right angles to other folding areas, both ends of these folding areas are limited either by the arc segment or the S-curve. 13. Cutting sheet ( 10 ) according to any one of claims 1 to 12, characterized in that all folding areas lying parallel to one another are each delimited either by the circular arc segment or the S curve. 14. Box, producible from a blank ( 10 ) according to one of claims 1 to 13. 15. Box, producible from a blank according to claim 8 or 9, wherein the scoring lines ( 100 ) are located on the inside of the box.