EP0636544B1 - Blank for producing a folding box - Google Patents

Abstract

A cardboard blank (1) for producing a folding box, having four side and end walls (2,3,4,5) which are connected to one another by fold lines (6,7,8), a bottom and a lid section (14,15;11,12) being linked in each case to two non-adjacent side walls (2,3) and two dust flaps (17,18,19,20) being linked in each case over fold lines (13,16) to the two end walls (4,5), and additionally a further wall section (10) being moulded onto the one side wall (2) to connect this side wall (2) to the adjacent end wall (5) in an articulated manner. Three intended tearing lines formed as perforation lines (21,22,23,51,52,53) are provided, two of which extend essentially parallel to the fold lines (6,7) between the side and end walls (2,3,4) over the two lid sections (11,12) and right into the upper region of the side walls (2,3) to which the lid sections are linked, and the third intended tearing line (21) connects the ends, lying in the side walls, of the other two intended tearing lines (22,23) to one another and extends over the end wall (4) lying between them. One fold line (24,25) in each case extends from the two intersections of the intended tearing lines (21,22,23) at an angle to the fold lines (6,7) which connect the respective side wall (2,3) to the end wall (4), whereas the ends of these two fold lines (24,25) are connected by a further fold line (26) which extends across the end wall (4), and further fold lines (27,28) extend at an angle from the said intersections of the intended tearing lines to the fold lines (13) between the side walls (2,3) and the lid sections (11,12) linked thereto, which fold lines then continue in the lid sections (11,12) and lie congruently there. <IMAGE>

Description

The invention relates to a cardboard blank for producing a Folding box with four side or End walls, one on two non-adjacent side walls Bottom section and a cover section and on the two end walls each two dust flaps are hinged over fold lines and on one side wall additionally a wall section for connecting this side wall with the adjacent end wall is articulated, preferably with several Perforation lines trained predetermined breaking lines, two of which in essentially parallel to the fold lines between the side and end walls over the two lid sections and up to the upper area of the side walls, to which the lid sections are hinged, and the third The predetermined breaking line is the ends of the other two lying in the rope walls Breakage lines connect with each other and over the intermediate one End wall runs, with a fold line from the two intersections of the Break lines oblique to the fold lines that the respective side wall with the End wall connects, runs and the ends of these two fold lines through one further fold line are connected, which runs across the front wall, and further fold lines diagonally from the mentioned intersection points of the predetermined breaking lines to the fold lines between the side walls and those hinged to them Cover sections run, which are then in the cover sections as Continue folding lines and there in an erected box cover up.

Such a cardboard blank is known from US-A-3 133 688; of this based on the object of the invention, a cardboard blank or to design the erected folding box so that it can be removed their contents slightly opened and again after removing a subset can be closed, with a good seal should be achieved.

This object is achieved in that the two oblique fold lines over the end wall connecting fold line arched is designed so that the two extend over the cover sections Fold lines are also arched that over the front wall running predetermined breaking line is offset upwards in its central section and that the height of the dust flap on the one provided with the predetermined breaking line Front wall is articulated, is less than the distance of the predetermined breaking line in the Cover sections from the articulation line of this dust flap on the front wall.

This is not just an easy way to make one Discharge opening created but also achieved that this opening through simply push the neighboring areas in again can. The arcuate configuration of the fold lines causes one Snap effect, which ensures that the pressed-in locking parts in their Lock position remain. The middle section of the In the reclosed state, the predetermined breaking line prevents this end wall can be pressed inwards, and at the same time improves the tightness. The relatively short length of the dust flap allows an unobstructed Open the predetermined breaking line provided in this area.

The interaction of all features of the invention is a Discharge opening created that is easy to open, both the first time it is opened as well as after a reclosure, and the other is easy and safe to close again.

Fig.1

einen flach liegenden Kartonzuschnitt mit Sollbruchlinien zum Herstellen einer Ausschütt-Öffnung und Faltlinien, welche diese Öffnung umgeben,

Fig.2

eine aus dem Kartonzuschnitt gemäß Fig.1 aufgerichtete Faltschachtel,

Fig.3

die Faltschachtel gemäß Fig.2 mit einem herausgetrennten Abschnitt und damit gebildeter Ausschütt-Öffnung,

Fig.4

die Faltschachtel gemäß Fig.2 und 3 mit wieder verschlossener Ausschütt-Öffnung und

Fig.5

eine weitere Ausgestaltung einer aufgerichteten Faltschachtel mit gebogen verlaufenden Sollbruchlinien in den Deckelabschnitten.

The invention is illustrated in the drawing using two exemplary embodiments. Show:

Fig. 1

a flat cardboard blank with predetermined breaking lines for creating a pouring opening and folding lines surrounding this opening,

Fig. 2

a folding box erected from the cardboard blank according to FIG. 1,

Fig. 3

2 the folding box according to FIG. 2 with a section cut out and the discharge opening thus formed,

Fig. 4

the folding box according to Figures 2 and 3 with the discharge opening closed again and

Fig. 5

a further embodiment of an erected folding box with curved breaking lines in the lid sections.

1 in FIG. 1 denotes a cardboard blank, the two Has side walls 2 and 3 and two end walls 4 and 5, each connected by fold lines 6,7,8 are. On the side wall 2 is another fold line 9 a wall section 10 hinged for connection to the Front wall 5 is used. On the two side walls 2 and 3 is at the upper end a cover section 11 and 12 each continuous fold line 13 articulated while at the bottom At the end of these two side walls 2, 3 each a bottom section 14 or 15 is articulated via a fold line 16. At the Front wall 4 is a relatively short dust flap at the top 17 and below a dust flap 18 also over the corresponding fold lines 13 and 16 articulated. The End wall 5 carries corresponding dust flaps 19 and 20. All four dust flaps 17, 18, 19 and 20 are included Provide recesses, which when folded between the respective lid or bottom sections 11, 12; 14, 15 these sections about the recesses directly with each other can be sealed or glued. Across the End wall 4 runs a predetermined breaking line, which as Perforation line 21 is formed and both of them End sections are angled down and then down still parallel to the center piece in the two Extend side walls 2,3 into it. From each of the two End points of this perforation line 21 extend further perforation line 22 or 23 vertically upwards and settles in the subsequent cover section 11 or 12 off. From the respective intersection of the Perforation line 21 with the perforation line 22 or 23 a fold line 24 or 25 goes out, which slants downwards to fold line 6 or 7. The two intersections of fold lines 6.24 and 7.25 are arched by a trained further folding line 26 connected to each other. Also from the intersection of the perforation lines 21,22,23 go out two more fold lines 27,28, the run obliquely against the fold line 13. From Intersection with this fold line 13 run again arcuate fold lines 29.30 across the two cover sections 11 and 12.

2 shows an erected from the cardboard blank 1 Folding box shown that is completely closed is. To remove at least a subset of the pourable filling material is an upper corner along the Perforation lines 21, 22, 23 are cut out as shown in Fig.3 is shown.

To reclose the dispensing opening, first the Cover section along the fold lines 27, 28 and 29 folded inside. Then the end wall section along the fold lines 24, 25 and 26 also inwards folded, this with the through the course the perforation line 21 given approach on the supports the folded lid section, as shown in Fig.4 is shown. This will make it a relatively good one Sealing between the lid section and the End wall section achieved. It can be opened again Approach then slightly gripped and the end wall section be folded out. Then there is the Lid section easy to grasp and fold out.

Instead of the approach to the perforation line 21 can also the two perforation lines 22 and 23 with Appropriate approaches should be provided, then it It is advisable to first the front wall section and only then fold in the lid section.

5 shows another embodiment of a shown erected folding box, the over the end wall 4 running perforation line 51 straight runs and the two over the lid sections 11 and 12 perforation lines 52 and 53 (only 52 visible) are curved. When reclosing the Opening thus grips the curved Remaining section of the two cover sections over the upper one and inwardly pressed portion of the end wall 4, whereby a relatively tight seal is achieved.

Claims (1)

1. Board blank (1) for the production of a folding carton, with four side and end panels (2, 3, 4, 5) connected to each other by folding lines (6, 7, 8), in which both a base section (14, 15) and a top section (11, 12) are hinged to two side panels (2, 3) that are not adjacent to each other and two dust flaps (17, 18, 19, 20) are hinged to each of the two end panels (4, 5) - in each case along folding lines (13, 16) - and in which an additional panel section (10) is hinged to one of the side panels (2) to connect this side panel (2) to the adjacent end panel (5), with several tear lines provided preferably in the form of perforation lines (21, 22, 23), two of which extend essentially parallel to the folding lines (6, 7) between the side and end panels (2, 3, 4) across the two top sections (11, 12) and into the upper section of the side panels (2, 3) to which the top sections are hinged, while the third tear line (21) connects the ends of the two other tear lines (22, 23) located in the side panels and extends across the end panel (4) between these side panels, and in which a folding line (24, 25) extends obliquely from each of the intersection points of the tear lines (21, 22, 23) to the folding lines (6, 7) that connect the relevant side panel (2, 3) to the end panel (4), the ends of these two folding lines (24, 25) are connected by another folding line (26) that extends across the end panel (4) and further folding lines (27, 28) extend obliquely from the above-mentioned intersection points of the tear lines to the folding lines (13) between the side panels (2, 3) and the top sections (11, 12) hinged to them that then continue in the top sections (11, 12) as folding lines (29, 30) and are then positioned on top of each other when the board blank has been formed, wherein the folding line (26) that connects the two oblique folding lines (24, 25) across the end panel (4) is designed to extend in a curved shape, wherein the two folding lines (29, 30) that extend across the top sections (11, 12) are also designed to be curved, wherein the middle section of the tear line (21) that extends across the end panel (4) is provided in a higher position and wherein the height of the dust flap (17) that is hinged to the end panel (4) provided with the tear line (21) is smaller than the distance between the tear line (22, 23) in the top sections (11, 12) and the line (13) hinging this dust flap (17) to the end panel (4).

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