ES2229110T3 - SHEET TROQUELADA AND CAJETILLA, 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

Die cut sheet and pack, in particular for cigarettes

The present invention relates to a sheet stamped, as well as packs made with it, such as which are used especially as a cigarette container.

Cigarettes are commonly presented in the market either in flexible container containers, or in containers rigid container, for example, in flip-top lids or pendant caps, however, also in the so-called rigid containers - soft without flip top. In the packaging of rigid container is also known to round the corners and edges, to protect the user's pockets. So by For example, document DE 29 40 797 A1 describes for this purpose a pack of cigarettes, among other things of the type of lid pendant, in which all corners and edges are rounded. However, this German request does not make public how it can make this box.

In EP 0 764 595 A1, in which based on the preamble of claim 1, a packet is described of cigarettes of the type of hanging cap, whose four edges Horizontal main ones are chamfered or rounded. For the manufacture of these edges, the corresponding die cut sheets. This European publication It also contains a reference to US 2 523 251 (lines 51 to 54 in column 4 of EP 0 784 595 A1) and, therefore, also the combination of rounded horizontal edges or chamfered with EP 0 764 595 A1 with the edges chamfered lengths of US 2 523 251. However, one more time is missing an indication of how to make this shape special realization.

In fact, manufacturing a problem is problematic. pack, especially a cigarette pack with a lid folding, in which all corners, as well as the edges Longitudinal and main horizontal edges, are rounded or chamfered, from a single die cut sheet.

Therefore, it is the mission of the present invention the preparation of a die-cut sheet easy to manufacture, for the manufacture of a pack, especially a pack of cigarettes with flip top, in which they are rounded or chamfered all longitudinal edges and edges horizontal main, as well as corners, most widely possible.

The solution of this mission is a die cut sheet of folding material for the formation of a pack of form parallelepiped, which is closed on at least 5 faces, being arranged successively in a straight line on the die cut sheet, two main tables diametrically opposed in the pack to form, parallelepiped-shaped, and a background box that unites, and forming the faces that in the pack to form, so of parallelepiped, they rely on the two main cadres diametrically opposed and in the background box linking these, by side frames protruding from the two frames main, and forming the edges of the two main paintings diametrically opposed in the pack to form parallelepiped, by folding zones,

characterized

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why two folding zones meet each other at vertices (of preference the lower ones) of the two main cadres diametrically opposed in the pack to form, in the form of parallelepiped, and

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why of two folding zones that meet each other (of essentially perpendicular preference), one is limited through a circle arc segment of about 45º to 90º, preferably from 65º to 80º, and the other, by an S-curve, adjusting the S curve to the vertex of the main frames in the circle arc segment, and

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why each of the folding zones is preferably formed by two or more contiguous fold lines, essentially parallel.

A die cut sheet is preferred as has been defined above, with a first main frame with a first frame left and right side,

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connecting to the upper edge of the first main frame a bottom frame, and to the upper edge of the background frame, a second main frame with a second left and right side frame,

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presenting the sheet die cut zones horizontal and vertical folding, namely a 1st and 2nd zone horizontal folding between the first main frame and the frame background, as well as between the background frame and the second frame main, and about 1st to 4th vertical folding zones, between the first left side frame and the first main frame, between the first main frame and the first right side frame, between the second left side frame and the second main frame, as well as between the second main frame and the second frame Right side,

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meeting the first zone with each other horizontal folding at the top vertex of the first frame main, with the 1st and 2nd vertical folding zone, and

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meeting with each other the 2nd zone horizontal folding in the lower vertex of the second frame Main, with the 3rd and 4th vertical folding area.

The die cut sheet described above may manufactured in a simple way, by means of the corresponding modification of existing machines for sheet manufacturing die cut By ordinary folding and gluing, it is generated at from it, a rigid container container that only It consists of a piece of the pack, in which a group of cigarettes wrapped in an interior paper. Normally the pack size is sized here so that the group of cigarettes sits fixedly in the pack, and at the end open top protrudes a little to allow the user to open the pack and take out the cigarettes.

However, in the normal case the pack you will also have a piece of the lid next to the piece of the packet, so that it is a current cap packet pendant.

To obtain this hanging lid box, the die cut sheet described above presents additional tables, to know, connected to the second main frame, a third frame main with a third left and right side frame, connecting to the upper edge of the third main frame, a frame of the upper face, and to the upper edge of the frame of the upper face, a fourth main frame with a side frame left and right, and

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presenting the other die cut sheet horizontal and vertical folding zones, namely a 3rd and 4th zone horizontal folding between the third main frame and the frame the upper face, as well as between the frame of the upper face and the fourth main frame, and about 5th to 8th vertical folding areas between the third left side frame and the third frame main, between the third main frame and the third frame right side, between the fourth left side frame and the fourth main square, and between the fourth main square and the fourth right side frame,

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meeting with each other the 3rd zone horizontal folding in the upper vertices of the third frame main, with the 5th and 6th vertical folding zones, and

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meeting the 4th zone with each other horizontal folding in the lower vertices of the fourth frame Main, with the 7th and 8th vertical folding areas.

With advantage the die cut sheet still presents, in addition to the tables described, in a supplementary manner in the lower edges of the second left side frames and rights, second left and right flaps of the pictures lateral, as well as on the upper edges of the third parties left and right side frames, third left flaps and right side frames. These flaps of the pictures side, serve to reinforce the bottom and the lid of the pack finished

Preferably, in the upper edge of the room main frame is a reinforcement frame that during the manufacturing of the package sticks on the inside of the room main draw, and also serves as reinforcement.

The foldable material can be used as usual materials for hanging lid packs, for example, paper or cardboard, if coated, as well as plastic, foil plastic, or plastic laminate, preferably strip paper wide or broadband cardboard.

The folding lines can be either stretch marks or preferably, scratched lines, and extend preferably throughout the length and breadth of the pack.

For the production of stretch marks, the Affected places of the die cut sheet with a striatum. In the opposite side is a groove channel, in which you can compress the material of the die cut sheet. In case of stretch marks that run parallel, according to the procedure described generates a wavy cross section. This procedure it is described, for example, in US 2 523 251, and presents the result in its figure 2. When assembling folding the sheet die cut so worked, they are automatically formed along stretch marks, rounded edges (in case of several stretch marks), or chamfered (in case of two stretch marks) of the container.

However, here it is disadvantageous that because of the rigidity itself and the forces of recovery of the material of the container, the glue for the manufacture of the container, is still problematic. This is usually done in the zones overlapping the die cut sheet, which form the side walls of the pack. Thanks to the rounded or chamfered edges, these overlapping areas are clearly reduced compared to one normal box, for example, with a hanging lid, so that only a limited amount of glue can be applied. The consequence it is therefore that mechanical production slows down, since that has to wait longer until the relatively small amount of glue, because if not, the packet would be reopened by the recovery forces of the material.

This is especially pronounced when for the manufacturing, for example, of the hanging lid pack, Use cardboard or broadband paper. In papermaking or of cardboard, the material that forms the product is deposited on a Tape that moves quickly. This causes the long fibers in the material they are preferably oriented in the direction longitudinal. In each case later, according to the die cut sheet cut along or across, from the material band finished, the long fibers in the die cut sheet are arranged transverse to the longitudinal axis of the die cut sheet (band wide), or along the longitudinal axis of the blade die cut (narrow band). Fiber orientation transversely to the longitudinal direction of the die cut sheet Broadband, results in good flexibility around the axis transverse, but at poor flexibility around the axis longitudinal. Therefore, the recovery forces for the side glued, they are stronger than in the die cut sheets of narrow band, in which because of the changed position of the long fibers in the material, the circumstances are exactly inverse However, on the other hand for folding packs preferably use die-cut broadband sheets, since clearly favor the stability of the lid (no closure oblique, no light tearing of the lid), the rigidity of the container thanks to greater resistance in the transverse direction, and the flat position of the container, that is, a smaller bulge possible packaging, regarding the use of band materials narrow.

Through the use of striped lines in opposition to stretch marks, surprisingly the forces of recovery, so that broadband materials can be used without problems and quickly for the manufacture of packs, without problems due to the smaller area Available for gluing the packs.

For the manufacture of striped lines it is reduced the thickness of the material that forms the container, by means of a blade of scratching For this, the die cut sheet is placed on a flat base. and it works with a scratching blade, so that next to a compression also occurs a separation of material. In each case according to the shape of the scratching blade, is generated, by example, a v-shaped or u-shaped cross section. Since the base does not present, as in the procedure for manufacturing stretch marks, channels in places opposite to the scratching blade, but rather a smooth surface, a reduction of thickness, and not as in stretch marks, at deformation without reduction of thickness.

The degree of thickness reduction depends on the material used and the folding area affected. Scratched lines Vertical folding zones are formed by reducing the paper or cardboard thickness of 10-80%, preferably a 30-70%, preferably very special, 40-60%, and for example approximately 50%, the striped lines of folding areas horizontal, by reducing the thickness of the paper or cardboard, 10-50%, preferably 20-40%, and for example, about 30%.

Striped lines are also preferred for the punched sheets according to the invention for a second reason. They have the advantage that when they are on the inside face of the finished container, the outer face appears completely intact and, therefore, it offers a better visual appearance for the user, which It is not possible using stretch marks.

By the number of folding lines and their distance from each other, the size and type of the Rounding. They are preferred by folding area, from 6 to 8, especially 7 folding lines, which are at a distance from each other about 1 mm. When folding a pack is generated with round edges; the radius of the rounding then corresponds to that of A common cigarette in commerce. They are also preferred by folding area, two folding lines that are located at one distance of 6 to 8 millimeters, especially about 7 millimeters. To the folding then a packet with edges is generated chamfering

Because of a uniform visual appearance of the pack is also preferred that all folding areas have the same number of folding lines.

For the meeting of the folding areas vertical and horizontal, it is preferred that the end of the segment of arc of circle and the end of the curve in S, they run separating from each other perpendicularly, and are located parallel to the edges of the main tables, since of this way is possible a smooth agreement between the different folding areas

Preferably, the circle arc segment and the curve in S is not connected to each other, or it is only in the vertex of the main paintings. By the way basically it is also possible that there is at least partial union between the segment of the circle arc and the S curve, then when folding for the formation of the packet, however, you arrive in the area in agreement between the two distinct folding zones, highlighted irregularities

In addition, it is preferred that at least one area folding is limited at both ends, or by a segment of arc of circle, or by a curve in S, as it is also preferred that in all folding areas that are in their two extremes, essentially perpendicular to other areas foldable, the two ends of these foldable areas are limited by the circle arc segment or by the S curve. Finally It is also preferred that all folding areas located parallel to each other, end each with an arc segment of circle or with an S curve. In all three cases, this leads to a Better visual impression.

The manufacture of die cut sheets takes out in the known way. That is, the die cut sheets, preferably as broadband die cut sheets, unwind and print bands of material for die cut sheets They are stored in rolls. Normally it follows a phase of work in which the punched sheets are treated with a blade of scratching or striating body in the manner described, and at the same time they are punched and / or cut and, where appropriate, embossed. Through the normal folding and gluing on the side faces, you get then mechanically, for example, the finished pack of cigarettes, which usually contains a group of cigarettes wrapped in an inner paper. In hanging lids according to the invention, a piece of shape is normally also used Walloon protruding in the open pack a little of the face inside the anterior wall of the pack, and that has a recess that allows you to grab the cigarettes found in the pack.

The invention is explained below by hand of an embodiment example. Shows:

Figure 1 A die cut sheet according to the invention for the manufacture of a pack of cover cigarettes pendant and

Figure 2 A view of detail Y of the figure one.

You see a first main frame 20 that in the finished pack corresponds to the front face of the piece of the packet, with its adjacent 22 and 24 side frames. Between first left side frame 22 and the first main frame 20, as well as between the first main frame 20 and the first frame 24 right side, there is a 1st and 2nd zone 90 and 91 folding vertical, which here are formed by 7 striped lines, and that they have a quadrant at their upper end.

The first main frame 20 is connected above the bottom frame 30, followed by the second main frame 40. Between the first main frame 20 and the bottom frame 30 are find the 1st horizontal folding zone 80, between frame 30 of bottom and the second main frame 40, the 2nd folding zone 82 horizontal. These two horizontal folding zones 80 and 82 are also formed by seven 100 striped lines that show in each one of its two ends an S-shaped line. The second frame 40 main which, in the finished pack corresponds to the face rear of the pack piece, is flanked by the second left side frame 42 with the second side flap 46 left of the side box, which is in it, and by the second right side frame 44 with the second side flap 48 right side box, which is in it. Among them a 3rd and 4th zone 92 and 93 vertical folding are located.

The second main panel 40 connects the third main frame 50 to the one in the finished pack, corresponds the back wall of the lid. Tables 40 and 50 main are separated by fold line 12 so that can turn the lid of the finished pack. Between the third main frame 50 and the third left side frame 52 with the third left side flap 56 of the side frame, which found in it, on the one hand, and the third side frame 54 right with the third flap 58 right side of the side frame found in it, are the 5th folding zone 94 vertical and the 6th zone 95 folding vertical. Zones 92 and 93 as well like 94 and 95 vertical folding, they are separated from each other through incisions, which can reach the fold line 12 or even beyond.

In the upper edge of the third frame 50 The main one follows the frame 60 of the cover, which follows The fourth main 70 box. Between the third main frame 50 and the box 60 of the lid, is the 3rd folding area 84 horizontal, between frame 60 of the lid and fourth frame 70 main, the 4th zone 86 horizontal folding, which once again are formed, like all other folding zones, by 7 lines 100 striped.

Around the fourth main square 70 is group, the fourth left side frame 72, the fourth frame 74 right side with the 7th and 8th zones 96 and 97 foldable, located between them, as well as reinforcement frame 72. This table 72 of reinforcement presents, due to its smaller dimension, only Four 100 striped lines.

The vertical and horizontal folding zones are found in the vertices of the main pictures, so by For example, vertical folding zones 90 and 91 with zone 80 horizontal folding in the upper vertices 21 and 23 of the frame principal. Vertical folding zones end in the form of embodiment of figure 1, in a quadrant that on the one hand transform flush in the upper edge of each of the frames contiguous sides, and on the other hand, flush in the outer edge of each of the main cadres. Folding areas horizontal end in curves in S, which are transformed flush in the outer edges, on the one hand, of each of the frames main contiguous, and on the other hand, of the contiguous table of background or picture of the upper face.

Next to the 100 striped lines of the different folding areas, other folding lines are seen, so line 12 of folded between the second frame 40 and the main third 50, the fold lines 77 in the reinforcement frame 72, and lines 55 and 45 folding to rotate the flaps of the frames lateral.

For the manufacture of the pack of cigarettes can first be refuted tables 42 and 44 lateral 90º upwards, and then the flaps 46 and 48 of the side frames that are in them, also 90º towards inside. Then it is repelled 90º up, the bottom of the sheet 10 die cut with frame 30 in the background and first frame 20 main, so that the flaps 46 and 48 of the side frames they get in touch and stick with the bottom frame 30. Whether subsequently rebate (90º) the first main frame 20, come to stand one on top of the side tables 22, 42 and 24, 44, and can be glued so that the bottom of the pack, the piece of the pack. In a similar way the top piece of the pack, the lid piece, that is, it glue the flaps 56 and 58 of the side frames with frame 60 of the upper face. The reinforcement frame 72 sticks inwards on the fourth main square 70, and then one is stuck with another side 52, 72 and 54, 74. 100 striped lines They are then on the inside of the finished pack, and They are not recognized from outside by the user.

The hanging lid pack obtained in the Folding assembly described, has longitudinal edges rounded. Also the four main horizontal edges They are rounded. Thanks to the arc segment encounter of circle and curve in S, at the ends of the folding areas, an agreement is achieved flush between the folding areas, and of this mode the 8 corners of the pack are rounded.

The encounter of the circle arc segment and of the S-curve is represented enlarged in the detailed view of Figure 2. Vertical folding zones 91 and 93 end each one, in a circle arc segment of about 60 to 70º, the zones 80 and 82 horizontal folding, in an S curve. The segments of arc of circle and the curve in S support each other without join one under the other, and meet at vertices 23 and 43

Claims (15)

1. Sheet (10) die cut folding material for the formation of a parallelepiped shaped pack, which is closed at least on 5 faces, being arranged successively in straight line on the sheet (10) die cut, two frames (20, 40) main diametrically opposed in the pack to form, of parallelepiped shape, and a bottom box (30) that joins them, and forming the faces that in the pack to form, so parallelepiped, they rely on the two main cadres (20, 40) diametrically opposed and in this background box (30) that unites them, by lateral frames (22, 24, 42, 44) that protrude laterally of the two main frames (20, 40), and forming the edges of the two main frames (20, 40) diametrically opposite in the pack to form parallelepiped, by folding zones, characterized

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why two folding zones meet each other at vertices of the two main cadres (20, 40) diametrically opposed in the pack to form, parallelepiped shaped, and

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why of two folding zones that meet one another, one is limited through a circle arc segment of about 45º to 90º, and the another, by an S-curve, the S-curve being adjusted to the vertex from the main frames (20, 40), to the arc segment of circle.

2. Die-cut sheet (10) according to claim 1, characterized in that each of the folding zones is formed by two or more contiguous folding lines, essentially parallel. 3. Sheet (10) stamped according to any of the claims 1 or 2, with a first main frame (20) with a first left and right side frame (22, 24),

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connecting to the upper edge of the first main frame (20) a bottom frame (30), and to the edge top of the bottom frame (30), a second main frame (40) with a second left and right side frame (42, 44),

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presenting the sheet (10) die cut horizontal and vertical folding zones, namely a 1st and a 2nd horizontal folding zone (80, 82) between the first frame (20) main and bottom frame (30), as well as between frame (30) in the background and the second main frame (40), and about 1st to 4th zones (90, 91, 92, 93) Vertical folding between the first frame (22) left side and the first main frame (20), between the first main frame (20) and the first right side frame (24), between the second left side frame (42) and the second frame (40) main, as well as between the second main frame (40) and the second right side frame (44),

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meeting the first zone with each other (80) horizontal folding at the top vertices (21, 23) of the first main frame (20), with the 1st and 2nd zone (90, 91) foldable vertical, and

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meeting with each other the 2nd zone (82) horizontal folding in the lower vertices (41, 43) of the second main frame (40), with the 3rd and 4th zone (92, 93) foldable vertical.

4. Die cut sheet (10) according to claim 3, characterized in that a left and right second flap (46, 48) of the side frame is connected to the lower edge of the second left and right side frame (42, 44). 5. Die cut sheet (10) according to claim 3 or 4, characterized in that a third main frame (50) is connected to the left and right third frame (50, 54) on the upper edge of the second main frame (40), to the upper edge of the third main frame (50), a frame (60) of the upper face, and to the upper edge of the frame (60) of the upper face, a fourth main frame (70) with a frame (72, 74 ) left and right side,

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presenting the sheet (10) die cut other horizontal and vertical folding zones, namely a 3rd and 4th zone (84, 86) horizontal folding between the third frame (50) main and the frame (60) of the upper face, as well as between the frame (60) of the upper face and the fourth main frame (70), and about 5th to 8th zones (94, 95, 96, 97) vertical folding between the third left frame (52) and third frame (50) main, between the third frame (50) main and the third frame (54) right side, between the fourth frame (72) left side and the fourth main frame (70), as well as between the fourth frame (70) main and the fourth right side frame (74),

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meeting with each other the 3rd zone (84) horizontal folding at the top vertices (51, 53) of the third main frame (50), with the 5th and 6th zones (94, 95) vertical folding, and

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meeting the 4th zone with each other (86) horizontal folding at the lower vertices (71, 73) of the Fourth main square (70), with the 7th and 8th zones (96, 97) vertical folding.

6. Die cut sheet (10) according to claim 5, characterized in that a third left and right third flap (56, 58) of the side frames is connected to the upper edge of the left and right third frame (52, 54), and in the upper edge of the fourth main frame (70), a reinforcing frame (72). 7. Sheet (10) stamped according to any one of claims 1 to 6, characterized in that the folding material is broadband cardboard or broadband paper. 8. Die cut sheet (10) according to claim 7, characterized in that the fold lines are striped lines (100). 9. Sheet (10) stamped according to claim 8, characterized in that the lines (100) lined with vertical folding areas are formed by a reduction in the thickness of the paper or cardboard, of 10-80%, in particular, of a 40-60%, and the lines (100) lined with horizontal folding areas, by reducing the thickness of the paper or cardboard, by 10-50%, especially 20-40%. 10. Sheet (10) punched according to any one of claims 1 to 9, characterized in that the end of the circle arc segment and the end of the S-curve run perpendicular to each other, and are located parallel to the edges of the main paintings (20, 40, 50, 70). 11. Sheet (10) stamped according to any one of claims 1 to 10, characterized in that the two ends of at least one folding area are limited either by the circle arc segment, or by the S-curve. 12. Sheet (10) stamped according to any one of claims 1 to 11, characterized in that in all the folding zones that meet at its two ends perpendicularly with other folding zones, the two ends of these folding zones are limited or by the circle arc segment, or by the S curve. 13. Sheet (10) punched according to any one of claims 1 to 12, characterized in that each of all the folding zones located parallel to each other is limited either by the circle arc segment, or by the S-curve . 14. Package that can be manufactured from a sheet (10) die cut according to any one of claims 1 to 13. 15. Package that can be manufactured from a die-cut sheet according to claim 8 or 9, the lines (100) scratched on the inside of the pack.