EP1361986B1 - Box with hinged lid - Google Patents

Abstract

A container blank is provided for a box with a hinged lid wherein the lid is reliably closed by way of an enlarged collar section. The closure of the box can be aided by surfaces formed on the container blank such that when folded into a box, the surfaces of the closure can provide resistance to the lid opening. Additionally, a lid portion of the container blank can optionally be provided with an embossed section.

Description

The invention relates to a hinged lid, in particular for cigarettes, with a lid and box part, whose Rear wall is hinged to the rear wall of the lid part. The Box also has a collar with a collar front wall and collar sidewalls and with a cutout in the collar front wall, wherein the collar on the inside of the Box front wall and the box side walls arranged is and partially protrudes from the box part.

Such hinged lid or hinged lid boxes are next to soft cup packs the most common cigarette boxes. In the classic shape, these hinged-lid boxes have a rectangular Cross section on, i. the longitudinal edges are approximately at right angles. Recently, however, there are more and more Hinged lid boxes with beveled longitudinal edges (i.e. an 8-cornered cross-section) or rounded longitudinal edges. With all these hinged-lid boxes the problem arises that, in particular after repeated opening and closing, the Lid does not automatically remain in the closed position, but something opens. This leads to a reinforced Aroma loss, and moreover, can be undesirable Tobacco crumbs, for example, in the pockets of the consumer trickle.

To solve this problem, the commercially available hinged-lid packs on the longitudinal edges of the collar incisions. This has the effect that when folding the collar that of the Incisions included material laterally as ears stick out. So creates an additional frictional resistance when closing the lid, for a better closure of the lid provides. The disadvantage here, however, is that the repeated Opening and closing, especially with boxes with rounded edges and beveled longitudinal edges, the projecting collar parts be bent or folded over and in the incision Insert so that the additional friction lost again goes.

EP 0 434 962 B1, which discloses a box according to the preamble of claim 1, provides a solution to this problem two-layer lid front wall before. The inside of the lid front wall is provided with recesses when closing the Lids with remaining next to the neckline of the collar front wall Come in contact with the edges in such a way that a Part of these edges between the inside and the outside the lid front wall comes to rest. This also happens to increased friction between the lid and collar and thus to a better closure of the lid.

US 5,478,011 also works with cuts or Recesses on the inside of the lid front wall to a To achieve the most secure closure of the lid. additionally is in this font still an imprint on the inside the lid front wall is described, so that a cavity between the outside and inside of the lid front wall results. This facilitates the insertion of the collar edges between Outside and inside of the lid front wall.

A disadvantage of the proposed solutions of EP 0 434 962 B1 and US 5,478,011 that, in addition to an increased cost of materials also a more complicated manufacturing process with additional Procedural steps, associated with the attachment of additional Cuts or recesses, necessary.

The object of the present invention is therefore to provide a Hinged lid box, in particular with beveled or rounded longitudinal edges, with secure closure of the lid provide that in the simplest possible way can be produced.

• mit einem Schachtelteil, wobei der Schachtelteil eine Schachtelvorderwand, eine Schachtelrückwand, Schachtelseitenwände und einen Schachtelboden aufweist,
• mit einem Deckelteil, wobei der Deckelteil eine Deckelvorderwand, eine Deckelrückwand, Deckelseitenwände und eine Deckeloberseite aufweist, und
• mit einem Kragen, wobei der Kragen eine mit einem Ausschnitt versehene Kragenvorderwand und Kragenseitenwände aufweist, wobei
• der Deckelteil mit der Deckelrückwand an der Schachtelrückwand angelenkt ist,
• der Kragen in dem Schachtelteil angeordnet ist und
• die Kragenvorderwand und in der Regel auch die Kragenseitenwände zumindest teilweise aus dem Schachtelteil herausragen,

dadurch gekennzeichnet, daß der neben dem Ausschnitt links und rechts stehenbleibende Rand der Kragenvorderwand so schmal ist, daß er in Folge der Steifigkeit des faltbaren Materials, insbesondere in seinem oberen Bereich, nach vorne absteht. D.h. durch eine einfache Verbreiterung des Ausschnitts in der Kragenvorderwand und das dadurch resultierende Abstehen der Ränder der Kragenvorderwand wird eine erhöhte Reibung zwischen diesen Rändern und der Innenseite der Deckelvorderwand erzielt, so daß der Deckel im wesentlichen im geschlossenen Zustand gehalten wird.This object is achieved by a box of foldable material, such as paper, cardboard, plastic, plastic film, plastic laminate,

• with a box part, the box part having a box front wall, a box back wall, box side walls and a box bottom,
• with a lid part, wherein the lid part has a lid front wall, a lid rear wall, lid side walls and a lid top, and
• with a collar, the collar having a necked collar front wall and collar sidewalls, wherein
• the lid part is hinged to the lid rear wall on the box rear wall,
• the collar is arranged in the box part and
• the collar front wall and, as a rule, also the collar side walls protrude at least partially from the box part,

characterized in that adjacent to the cutout left and right standing edge of the collar front wall is so narrow that it protrudes forward due to the rigidity of the foldable material, in particular in its upper region. That is, by a simple broadening of the cutout in the collar front wall and the resulting protruding edges of the collar front wall increased friction between these edges and the inside of the cover front wall is achieved, so that the lid is held substantially in the closed state.

To the desired effect of increased friction by the to reach forwardly projecting edges of the collar front wall, Already a slight increase in the cut-out width is enough compared to usual cigarette packs, eg. an increase of 3% or more, especially 4 to 15%, preferably 4 to 7%, more preferably 4 to 5 and about 4%.

In a commercial box (with a maximum width of the collar part in the box of 5.6 cm), at which all Long edges are rounded, this means concrete one Broadening of the section by approx. 1.5 mm. That the cutout width at half height (middle height calculated from the Lower edge of the cutout up to the maximum height of the cutout, the usual cigarette packs through the horizontally running upper edges of the edges of the collar front wall or the collar side walls is defined) is approx. 3,25 cm. Will this width be at center height around 1.5mm or about 4.5% increased to 3.40 cm, so already occurs the desired Effect of a significantly increased friction. This effect is even with only about 3% zoom broadening However, recognizing this is with an increase in the cut-out width or with a reduction in the width of the side remaining edges all the more, but by the Total width of the box set an upper limit of about 20% is.

The broadening can also by the ratio the center height width of the section to the maximum width of the Collar part can be specified in the finished box. This is for hinged lid boxes of the state of Technique with rectangular longitudinal edges approx. 0.74 and with beveled or round longitudinal edges approx. 0.69. For the inventive Boxes with rectangular longitudinal edges intended this ratio is greater than 0.76, preferably 0.78 to 0.81, and for the boxes according to the invention with bevelled or round longitudinal edges greater than 0.71, preferably 0.72 to 0.73, be.

Preferably, one or more, in particular all longitudinal edges or just the two front longitudinal edges on the side the opening of the hinged lid boxes invention rounded or beveled, because then the remaining edge areas especially next to the neckline of the collar front wall protrude strongly forward and therefore especially good for safe Contribute closure of the lid. In the usual hinged lid boxes with substantially rectangular edges this effect is not so pronounced, so that for this one larger broadening, in particular from 5 to 10%, is preferred.

To achieve rounded or beveled edges, the Blank sheet from which the cigarette box made is, at the edges of the cigarette box forming areas either with grooves or scribe lines. According to No. 4,955,531, the grooves can be made in a mold in which the blank sheet in the relevant places is pressed by a creasing. Located on the opposite side there is a creasing channel in which the material of the blank sheet can be pressed. For parallel grooves arises according to the described method, a wavy Cross-section. An alternative to grooves are scribe lines. This is by a scoring knife, the thickness of the Pack of forming material reduced. For this purpose, the blank sheet placed on a smooth surface and with a Scratching knife worked, so that in addition to compression, too to remove material. Depending on the shape of the scoring knife For example, a v-shaped or u-shaped cross section is created. There the pad does not like in the production of grooves on the the scribe knife opposite points channels, but rather a smooth surface, it comes to a Thickness reduction and not as in the grooves to a deformation without thickness reduction. The degree of thickness reduction depends on the material used, but is in the Rule 10 to 80% of the total thickness, preferably 20 to 70%, most preferably 40 to 50%, amount. The scribe lines are preferably on the side of the blank sheet, which forms the inside in the finished box. this has the advantage of a more appealing visual appearance of finished box. The scribe lines and grooves extend preferably over the entire length of the box, so that completely round or bevelled longitudinal edges obtained become.

When folding up the cut sheet so processed form then automatically along the grooves or scribe lines the (in case of several grooves or scoring lines per fold area) round or (with two grooves or scoring lines per fold area) Beveled edges of the cigarette pack. By the number the grooves or scribe lines and their distance from each other the extent and nature of the rounding. Prefers are per folding area 6 to 8, in particular 7, grooves or Scoring lines that are at a distance of about 1 mm to each other are located. When folded, a box with rounded edges is created; the radius of the rounding then corresponds approximately to the one commercial cigarette. Also preferred are per folding area two grooves or scoring lines that are at a distance from 6 to 8 mm, in particular about 7 mm. When folding Then a box with bevelled edges is created.

The boxes can be made from the usual materials for cigarette packs be made, such as paper, cardboard, Plastic, plastic or plastic laminate or one of the mentioned materials with an additional metal or Metal oxide coating.

Preferably used are paper or cardboard, especially Preferably, wide web paper or wide web carton is foldable Material for the lid and the box part as well as the Collar. In paper or cardboard production, the product-forming Material on a fast moving tape stored. This causes the long fibers in the material preferably oriented in the longitudinal direction. It depends on the cut sheet later along or transversely from the finished Material web is cut, the long fibers are in the Blank sheet transverse to the longitudinal axis of the blank sheet (wide web) or along the longitudinal axis of the blank sheet (narrow web) arranged. The orientation of the fibers transversely to the longitudinal direction The wide sheet blank sheet ensures good flexibility around the transverse axis, but poor bendability around the longitudinal axis. The restoring forces for the lateral bonding are therefore stronger than in narrow web cut sheets, at due to the reversed position of the long fibers in the Material the conditions are exactly the opposite. on the other hand However, for folding boxes are preferred wide web blank sheets used as it increases the stability of the lid (no slate closure, no easy tearing off the lid), the stiffness of the pack due to a higher resistance in Transverse direction and the flat position of the package, d. H. one possible slight curvature of the pack, compared to the use of narrow web materials clearly favor.

For the cartons according to the invention, therefore, the use of Broad web materials preferred because these one hand for the Lid and box part the said positive properties like stability of the lid and stiffness and flatness of the Pack revealed, on the other hand by the case of wide web materials increased restoring forces due to the orientation of the long fibers transverse to the longitudinal axis of the collar, the standing of the Edges of the collar front wall is additionally reinforced.

The use of wide web materials for the production of Hinged lid boxes with beveled or rounded Long edges is a bit problematic because on the one hand (as above discussed), the restoring forces are increased, on the other hand by the beveled or rounded edges the lateral Surfaces for bonding are smaller than normal Boxes. The residence times during the bonding must therefore be increased, causing a slowdown in production leads.

To circumvent this problem, it is in the inventive Boxes with rounded or beveled longitudinal edges are preferred, that the fold lines leading to the beveled or round Lead edge, at the lid and box part through Scoring lines are formed. By the scribe lines are in the Contrary to grooves, the restoring forces surprisingly significantly reduced, so that even with wide web materials easily and quickly the preparation of the invention Nesting can be done without it by the lower Available adhesive surface to problems with the lateral Closure of the box comes.

In contrast to the box and lid part, it is included the box according to the invention with rounded or bevelled Edges preferred that the restoring forces of Collar part can not be reduced. Therefore, it is preferable that the fold lines of the collar, the bevel or rounding off between collar front wall or collar sidewalls, be formed by grooves, since the outer edges of the Collar front wall then protrude more forward and the friction reinforced in the closed state with the lid inside becomes.

For the collar part can in addition to the described wide-web materials but also the ones commonly used for collars Narrow web materials are used, preferably in turn, in combination with grooves to the restoring forces reduce as little as possible and as effective as possible Ensuring the collar front wall edges are secured.

To further improve the closure of the lid, can the inside of the lid front wall by a reinforcing panel with at least one, preferably two, recess (s) be formed, which is / are shaped so that when closing the lid part with the edge (s) of the collar edge / Collar edges interact / occur, so that in the closed Condition of the box at least a part of the / Edge / edges between the outside of the lid front wall and the reinforcement field comes to lie / come.

To ensure that the interaction between the recess and the collar edge runs smoothly, the recesses essentially V-shaped, their edges arcuate (so that the collar edges are slightly under the reinforcing panel can slide), the lowest point of the recesses lies approximately in the middle of the height of the reinforcement field and the recesses extend starting at the top of the gain field about 50 to 90%, especially 60 to 70%, the Height of this reinforcement field (which in turn the insertion the collar edges between reinforcing panel and lid front panel outside facilitated).

To further facilitate insertion of the collar edges to achieve one or preferably both upper corners the reinforcing panel provided with an embossing, preferably the thickness of the foldable material has and over the entire upper corner to the edge of the recess and the Upper edge of the gain field extends.

The production of the boxes according to the invention takes place known manner of blank sheets and separate parts of the collar. That the blank sheets and the collar parts are made of webs cut sheet material stored on rolls, unwound and possibly printed, preferably as a wide-web blank sheets. It usually follows a single operation, at the cut sheets and the collar parts by a scoring knife or a corrugated body treated in the manner described and simultaneously punched and / or cut and possibly be shaped. In this operation, the widened Collar cut received, what procedural simply by appropriate adaptation of the cutting or Punching tool is feasible. As far as the production The carton of the invention used blank sheets an embossing to the edge of the blank sheet have, for manufacturing reasons, first the Be made and then in a separate operation of the Blank sheet cut or punched out. By conventional folding and gluing the blank sheets on the side surfaces with simultaneous partial insertion and bonding of the collar with the box front wall and / or the Box sidewalls will then machine the finished cigarette box usually get one in one Innerliner wrapped cigarette group contains.

Fig. 1

einen Kragenzuschnittbogen 10,

Fig. 2

einen Zuschnittbogen 100 für den Schachtel- und Deckelteil und

Fig. 3

einen weiteren Zuschnittbogen 100 mit leicht abgewandeltem Verstärkungsfeld 30.

The invention will be explained further with reference to an embodiment. Show it:

Fig. 1

a collar cut sheet 10,

Fig. 2

a blank sheet 100 for the box and lid part and

Fig. 3

another blank sheet 100 with slightly modified gain field 30th

Fig.1 shows a blank sheet of broad-web paper or -Carton for a collar 10 with collar front wall 12 and collar side walls 14. Rillines 15 are still visible between Collar front wall 12 and the two collar side walls 14. In total, seven creasing lines are 15 for each folding area provided at a distance of about 1 mm parallel to each other run. The entire folding area is therefore 6 mm wide.

The collar 10 further has the edge regions 16, the through the edges 18 on one side and the folding areas be limited with the grooves 15 on the other side. Farther the collar 10 has a cutout 20 which here has a center height of about 34 mm. In an inventive Box containing the collar shown here, So would the edges 16 protrude forward and thus substantially cause a secure closure of the lid.

Fig. 2 shows a blank sheet 100 of wide web paper or cardboard for making a cigarette box. To see are the usual fields, d. H. Main surface fields 40, 42, 44 and 46 with the corresponding side surface panels 41, 43, 45 and 47, which in the finished cigarette box the Box front wall, the box back wall, the lid front wall, the lid rear wall, as well as the side walls of the lid and box part. You can still see the ground field 48 and the top panel 50, in the finished box correspond to the box bottom and the lid top. The blank sheet 100 of Fig. 2 has seven substantially Scoring lines running parallel at a distance of approx. 1 mm 52 on. Further fold lines next to the score lines 52 are in 2 dashed lines and designated by the reference numeral 54. The blank sheet also has two Incisions 56 and over Seitenflächenfeldendlappen 58 and 59. The main surface field 46 is followed by the reinforcement field at the top 30 on, on both sides via a respective approximately V-shaped Recess 32 has. The two upper corners 34 of Reinforcement panel 30 each have an embossment 36 which is completely from the top edge 38 of the reinforcing panel 30 to extend to the lowest point of the recesses 32.

To produce the cigarette box can first Side surface fields 43 up 90 ° and the one on it Side surface field flaps 58 also at 90 ° inwards be worked out. Then the lower part of the blank sheet 100 with the bottom surface 48 and the first main surface field 40 folded up 90 °, so that the Seitenflächenfeldendlappen 58 come into contact with the bottom panel 48 and be glued. If the first main surface field 40 is folded further (By 90 °), so come the side surface fields 43 and 41 lie over each other and can be glued, so that the Box part is done. In a similar way, the lid part manufactured, i. the side surface field end flaps 59 become glued to the top panel 50. The amplification field 30 is glued inwardly onto the fourth major surface panel 46 and then the side surface panels 45 and 47 glued together. During this manufacturing process or subsequently can, for example, the collar 10 shown in Fig. 1 on the inside of the first main surface field 40 are arranged so that a Part of the collar protrudes from the box part. The connection of the collar with the box front wall, d. H. the first Main surface field 40, and possibly the corresponding side surface fields can be done by gluing.

Located on the lid front wall inside of the finished box then the gain field 30 with the two lateral Recesses 32. When closing the box is due to the arcuate edge profile of the recesses 32nd the edge 18 of the collar edges 16, facilitated by the embossments 36, between gain field 30 and fourth main surface field 46, guided and held there by friction.

The embossments 36 can also along the cut lines 39 be attached, as shown in Fig. 3.

Claims (12)

1. Box made of foldable material

   with a box part, the box part having a box front wall (40), a box rear wall (42), box side walls and a box base(48),

   with a lid part, the lid part having a lid front wall (46), a lid rear wall (44), lid side walls and a lid top side (50), and

   with a collar (10), the collar (10) having a collar front wall (12) provided with a cut-out section (20) and collar side walls (14),

   the lid part being linked with the lid rear wall (44) on the box rear wall (42),

   the collar (10) being arranged in the box part and

   the collar front wall (12) projecting at least partly out of the box part,

   characterized in that
   the rim (16) of the collar front wall (12) remaining on the left and right next to the cut-out section (20) is so narrow that it projects forward due to the rigidity of the foldable material, in particular in its upper area.
2. Box according to claim 1, characterized in that the lid is held essentially in the closed state by the friction between the forward-projecting rims (16) and the inside of the lid front wall.
3. Box according to one of claims 1 or 2, characterized in that in each case one or more of the longitudinal edges of the box part, of the lid part and of the collar are rounded off or chamfered.
4. Box according to one of claims 1 to 3, characterized in that the foldable material is paper or cardboard.
5. Box according to claim 4, characterized in that the foldable material is shortgrain paper or shortgrain cardboard.
6. Box according to claim 5, characterized in that one or more of the longitudinal edges of the box are rounded off or chamfered and the chamfering or the rounding of the longitudinal edges of the box and lid parts is formed by scoring lines and the chamfering or the rounding of the collar (10) by grooves.
7. Box according to one of claims 1 to 6, characterized in that the inside of the lid front wall is formed by a strengthening field (30) with at least one recess (32) which is shaped such that upon closure of the lid part it interacts with the edge (18) of a collar rim (16) so that in the closed state of the box at least a part of the collar rim (16) comes to rest between the outside of the lid front wall and the strengthening field (30).
8. Box according to claim 7, characterized in that the recess(es) (32) is/are essentially v-shaped, the edges of the recess(es) (32) is/are curved, the deepest point of the recess(es) (32) lies/lie roughly at mid-height of the strengthening field (30) and the recess(es) (32) extends/extend from the top edge (38) of the strengthening field (30) over approximately 50 to 90%, in particular 60 to 70%, of the height of the strengthening field (30).
9. Box according to one of claims 7 or 8, characterized in that one or both top corner(s) (34) of the strengthening field (30) is/are provided with an embossed area (36).
10. Box according to claim 9, characterized in that the embossed area(s) extends/extend inwards from the top edge (38) of the strengthening field (30) and the top end(s) of the edges of the recess(es) (32) to the strengthening field (30).
11. Box according to one of claims 9 or 10, characterized in that the embossed area (36) approximately corresponds to the thickness of the foldable material.
12. Collar (10) made of foldable material which has a collar front wall (12) provided with a cut-out section (20) and collar side walls (14)
    characterized in that
    the rim (16) of the collar front wall (12) remaining on the left and right next to the cut-out section (20) is so narrow that, when inserted into a box with a hinged lid, it projects forward due to the rigidity of the foldable material, in particular in its upper area.

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