EP1498356A2 - Parallelepipedic folding box and blank therefore - Google Patents

Abstract

The cubic folding box has angled tuck-in flaps (7,7';8,8') on the free ends of bottom sealing flaps (2,2') connected to right hand and left hand sidewalls (5,5'). With the bottom in its closed position the tuck-in flaps engage in slots (10,10';11,11') which correspond to the shape and position of the tuck-in flaps. The slots are provided in the bottom sealing flaps connected to the front and rear sidewall. The bottom sealing flaps (1,1') provided on the front and rear sidewall are each connected by a fold line made preferably by a scoring tool and extending with an offset towards the inside of the box in the region between the slots. An independent claim is included for a stamped out blank to make a resealable cubic folding box.

Description

The invention relates to a parallelepiped carton according to the preamble of the claim 1 and a punching blank for this according to the preamble of claim 9.

Such cuboid cartons are e.g. known as so-called moving boxes. They are delivered to the user in the form of a blank in a flat condition, which then erects the carton manually, wherein by folding over the bottom closure flaps a folding carton with closed bottom is obtained, the many still with additional aids, such as adhesive tapes, metal clips, etc., is reinforced.

In particular, the floor construction of such cartons is decisive for their Load capacity. Thus, e.g. known as envelope bottoms, which have proven themselves, but their carrying capacity is limited, the latter of course also depends on the material used for the carton, i. which type of corrugated fiberboard or corrugated board quality is used.

The object of the invention is therefore, a cuboid carton and the punched blank to propose their floor construction in a simple way without additional aids is reclosable form, the carrying capacity of the floor construction Compared to the prior art much higher or in the case of the use of weaker and thus cheaper, e.g. Wellpappsorten should remain unchanged.

This object is achieved by the characterizing part of claim 1 and the claim 9 contained features, with expedient developments the invention characterized by the features specified in the subclaims are.

In accordance with the invention is in a cuboid carton with four bottom closure flaps provided that two opposite flaps at their free Ends have bendable insertion tabs in the state of the closed bottom closure formed in accordance with the shape and position of the tuck Engage slots and embrace them inside the box, these slots in the two other opposing bottom closure flaps are provided. One Such closure mechanism advantageously holds in itself, so additional aids as adhesive tapes or metal clips are not required here. Furthermore allows the folding technique resulting from this construction gives the user a quick and easy Erecting a folding box. A "wrong" assembly leading to a restricted one Carrying capacity is almost impossible. Finally is This closure bottom is constructed so that the carton once erected easily unfolded again and can be laid flat on the ground again. Thus, the flat stamping blank can be used several times and in the meantime save space in flat condition.

A special locking of the bottom closure is possible by the fact that at the front side wall and provided on the rear side wall bottom closure flaps each articulated with a folding line in the area between the slots staggered inwardly. As a result, the middle part of the long sides is slightly behind pulled inside and the carton gets, if you look at them from below, one Type sidecut. This in turn advantageously has the consequence that the tuck-in, when these encompass the slots in the box interior, i. pushed from the inside to the ground be additionally fixed by the friction on the side walls. This measure gives the bottom of the closure additional support and prevents the tuck accidentally slip out and the bottom of the closure is inoperative. Further This makes it easier to fill the carton with small parts, since these now no longer get under the upwardly possible wegstehende Einstecklaschenenden can.

It has proven, however, that the hinged on the right and left side wall bottom flap two bendable push-in tabs at their free ends which have the shape of a triangle whose base line is a fold line covers over which the pockets are hinged to the bottom closure flaps.

It is expedient that the push-in tabs at its free end bevelled or have a blunt tip, as in the case of those on the front and rear side wall hinged bottom flaps have slots through a movable Tongue are closed, these slots can easily penetrate. Should however, the tuck-in tabs have the shape of a triangle with a pronounced tip, it comes when puncturing the slots to a punctiform load, which in particular at relatively weak types of cardboard to a deformation of the Einstecklaschenspitzen can lead, so that such Einstecklaschenform pushed difficult in the slots can be. It is therefore appropriate that the tuck in at its free end have a blunt tip, as these then no longer punctiform but along their entire slant touching the slots. The resulting enlarged attack surface distributes the Pressure load over the entire slope, causing a kinking or deforming prevents the tips of the tuck tabs when plugging the box bottom can be. Finally, it is appropriate that the front and back respectively Sidewall hinged bottom flap in width greater than half the width and smaller than the entire width of the carton is formed. This will be a certain Cover level of the floor construction achieved.

The inventive measures not only a quick and easy folding the bottom element of a folding box but also a bottom element with increased stability, whereby with increasing contents of the Faltbox the bottom of the Faltbox becomes more sustainable. This is based on the fact that the contents of the folding box directly on the in the Cardboard protruding and laid on the bottom triangles pushes and holds them. ever higher the weight of the product is, the more it presses on the tabs lying on the ground and prevents them from slipping out. This increases the Load capacity of the soil tends to increase with weight, which is very significant is. Due to the offset middle part in consequence of the middle part inwards on the Longitudinal drawn grooving, the middle part is slightly narrower than the width in the corner of folding carton. Through this lowered middle part it comes to a leveling in the edge area and it results in a nearly flat bearing surface in the area of the soil.

For producing a multiply closable, cuboid carton is according to Claim 9, a punching blank provided, and that has a front side wall with a connecting tab, a rear side wall, the front side wall and a the rear side wall connecting, right side wall and a left side wall, as well as four bottom flaps and two flaps for the lid, as well two provided between the latter reinforcing tab, said punch blank from Cardboard, cardboard or other suitable material may exist.

The middle part of this punching blank is formed from the rear side wall with a Connecting tab as corner flap, the right side wall, the front side wall and the left side wall, which in total in each case via fold lines in a row straight behind one another are arranged interconnected. On the rear side wall or On the front side wall are again on one side over folding lines bottom closure flaps and on the other opposite side over fold lines flaps hinged, wherein on the right side wall or on the left side wall over Folding lines also bottom flap and over on the opposite side Fold lines are provided Verkärkungslappen.

In the stamping blank are further in both the right and in the left side wall as well as in the reinforcing tabs that connect to the sidewalls, respectively Slotted holes intended as manual intervention. When building the carton become the reinforcement tabs only folded inwards by 90, so that on the two right and left side walls inside, whereby a doubling of the wall thickness takes place and thus this also leads to a handle reinforcement.

To engage the tuck in the bottom closure flaps each two mirror images provided to each other slots arranged at an acute angle to Fold line of the bottom closure flaps and starting from this fold line, wherein these fold lines in the area between the slots provided inwardly of the box are. The advantages of this staggered arrangement of these fold lines were already at the beginning why they are referred to. Furthermore, the slots are closed, in each case via a hinged on a folding line, movable tongue.

The flaps advantageously have each at the free end in the middle of a V-shaped Recess whose bottom is still slotted, and to a depth to the half width of the right or left side wall is reached. With such a trained V-shaped recess is achieved that the two closing flaps when closing the carton in the region of these V-shaped recesses interlocked can be, whereby the flaps are held in position.

The hinged on the right or left side wall bottom flap have on their free ends in each case two foldable over folding lines push-in tabs, respectively are chamfered on their free ends for a while and on the other a kind of dull triangle represent, thus easier, almost knife-like in the other bottom flaps slits provided to slide.

Both the bottom flaps and the flaps and reinforcing flaps are separated from each other by a diecut, with the bottom closure flaps in width greater than half the width and smaller than the entire width of the Folding box are formed. As a result, a sufficient degree of coverage is achieved.

Fig. A

eine Draufsicht auf den geöffneten Bodenbereich einer Faltschachtel in perspektivischer Darstellung;

Fig. B

eine Faltschachtel gemäß Fig. A beim Verschließen des Bodenbereichs;

Fig. C

eine Faltschachtel gemäß Fig. A mit verschlossenem Boden;

Fig. D

eine Draufsicht auf den Innenbereich einer Faltschachtel gemäß Fig. A in perspektivischer Darstellung beim Umklappen der Verstärkungslappen;

Fig. E

eine Draufsicht auf den Innenbereich einer Faltschachtel gemäß Fig. A in perspektivischer Darstellung beim Umklappen der Einstecklaschen; und

Fig. F

eine Draufsicht auf einen Stanzzuschnitt für eine quaderförmige Faltschachtel.

Further details and advantages of the invention will be explained in more detail by an embodiment with reference to the accompanying drawings and described. It shows:

Fig. A

a plan view of the open bottom portion of a carton in perspective view;

Fig. B

a folding box according to Figure A when closing the bottom portion.

Fig. C

a carton according to Figure A with a closed bottom.

Fig. D

a plan view of the interior of a carton according to Figure A in a perspective view when folding the reinforcing tabs.

Fig. E

a plan view of the interior of a carton according to Figure A in a perspective view when folding the Einstecklaschen ..; and

Fig. F

a plan view of a punched blank for a cuboid carton.

The cuboid carton shown in Fig. A has a rectangular longitudinal cross-section and is shown standing in perspective with open bottom area upside down.

The bottom closure is made by four bottom closure flaps 1; 1 and 2; 2 'formed, wherein the bottom closure flap 1 via a fold line 3 to a front side wall 4 and the Bottom closure flap 1 'via a fold line 3' hinged to a rear side wall 4 ' is. The front side wall 4 is with the rear side wall 4 'on the right Side with a right side wall 5 and on the left side with a left side wall 5 ' connected, wherein the position of the side walls are described here as if the carton in their position of use, d. H. standing on the floor with the floor construction (as in FIGS. D and E). The fold lines are otherwise preferably formed by Riller.

The bottom closure flaps 2 and 2 'are above fold lines 6 and 6' at the right and left side wall 5 and 5 'articulated and have at their free ends in each case two bendable Push-in tabs 7; 7 'and 8, respectively; 8th'. The bending of the push-in tabs 7, 7 'and 8, 8 'in turn is made possible by fold lines 9 and 9' (FIG. B).

In the at the front and rear side wall 4 and 4 'hinged bottom closure flaps 1 and 1 'are slots 10 and 10' and 11 and 11 'for receiving the tuck 7; 7 'and 8, respectively; 8 'provided, wherein the slots 10 and 10' or 11 and 11 ' are each mirror images of each other and each have an acute angle with the Fold line 3 or 3 'include from which they also go out.

Both in the right and in the left side wall 5 and 5 'and in adjacent to this Reinforcing tabs 12 and 12 'are slots 13; 13 'and 14, respectively; 14 'provided by folding over the reinforcing tabs 12 and 12 'by 90 ° inwards this can be brought to cover and thereby also reinforced handles for the Form folding carton. It may also be expedient, the slots 13; 13 'respectively provided with a fold-out tongue which folded around the reinforced handle so that it becomes more friendly.

Finally, the carton shown in Fig. A still has the front and rear Side wall 4 and 4 'hinged flaps 15 and 15', at their free ends in the center a V-shaped recess 16 or 16 ', each having a cut 31 (FIG. exhibit.

The cuboid carton according to the invention is produced as follows:

Starting from a flat punch blank according to FIG. F, a cross-section is first taken rectangular box formed, the two floors are still open. For this purpose is the punching blank by means of a corner flap 4 "in a known manner by stapling or gluing connected to a closed quadrangle. Then when folding of the box bottom first the two bottom closure flaps 1 and 1 'by 90 ° inwards folded according to the thick-drawn arrows in Fig. A. The order, whether the first Bottom flap 1 or 1 'is handled, it does not matter.

In Fig. B, the bottom closure flaps 1 and 1 'are shown in their final position. So that These cover when closed and thus a closed floor form, the width of the bottom closure flaps 1 and 1 'is greater than half the width of the Folded box formed, as well visible from the top view in Fig. B.

Then the tuck is 7 and then 7 'or 8 and then 8' or each at the same time folded around the respective fold line 9 or 9 'by 90 ° and then by a folding the bottom closure flaps 2 and 2 'corresponding to the thick-drawn arrows in Fig. B. placed in the slots provided 10 and 11 or 10 'and 11', so that they to a certain extent "click with one click", which is shown in Fig. C with the two bold arrows should be indicated. Here, on the left side, the type triangular tab 8 in the slot 10 of the bottom closure flap 1 'on the one hand and the insertion tab 8' pushed into the slot 11 of the bottom flap 1 on the other. The same applies to the Einstecklaschen 7 and 7 'of the bottom flap 2. The corners of the tuck 7; 7 'and 8; 8 'are preferably beveled, so the pushing in the same in the slots 10; 10 'and 11; 11 'can be done even easier.

Subsequently, the folding box is turned over by 180 ° - Fig. D - and the reinforcing tabs 12 and 12 'folded inwards by 90 ° according to the thick-drawn arrows, so that these on the two inner surfaces of the right and left side wall 5 and 5 'come to the plant, which leads to a doubling of the wall thickness. The prefabricated and attained Griffausstanzungen 13 and 14 or 13 'and 14' obtained at the same time a carrying handle reinforcement.

Then, according to FIG. E, the triangular insertion tabs 7 or 7 'and 8 or 8' inside the carton according to the thick drawn straight arrows on the inside Faltschachtelboden pressed. So that they remain in the depressed state, can be advantageously provided that in each case between the slots 10 and 10 'or 11 and 11 'extending fold line 3 and 3', (FIG. F) formed offset inwardly of the box is, whereby a certain friction of the Einstecklaschen 7 and 7 'and 8 and 8' on the respective inner side of the front side wall 4 and rear side wall 4 'generated is, whereby the Einstecklaschen are additionally fixed. This will in particular a Filling the carton with small parts improved, because they can not do more get under the possibly upstanding triangles. Also receives the soil thereby an additional stop.

Finally, the closing flaps 15 and 15 'according to FIG. E and there corresponding the thick drawn arrows folded inwards, so that a closed Folding box is present (not shown). Here are the two flaps simultaneously 15 and 15 'in a known manner something against each other entangled, so this in the Engage area of the centrally provided V-shaped recesses 16 and 16 'into one another.

The illustrated in Fig. F in a plan view stamped blank, with a inventive Folding box can be folded, consists in its middle part of the front side wall 4 with a corner flap 4 ", the right side wall 5, the rear side wall 4 ' and the left side wall 5 ', which in total via fold lines 21, 22, 23 with each other connected in a row in a straight line arranged one behind the other.

On the front side wall 4 and on the rear side wall 4 'turn on one side over fold lines 24, 25 bottom closure flaps 1, 1 'and on the other opposite side over fold lines 26, 27 hinged flaps 15, 15 ', wherein on the right side wall 5 and on the left side wall 5 'via fold lines 28, 28' the bottom closure flaps 2, 2 'and on the opposite side via folding lines 29, 29 ', the reinforcing tabs 12, 12' are provided.

The punched blank also has both in the right and in the left side wall fifth or 5 'and in each of the adjacent to the side walls reinforcing tabs 12, 12' Long holes 13, 13 'and 14, 14', which serve to cover used as handles.

Furthermore, each bottom closure flap 2, 2 'has two insertion tabs 7 at its free end, 7 '; 8, 8 'formed as a truncated triangle with chamfered corners and fold lines 9, 9 'are bendable. For engagement of the corner tabs 7, 7 '; 8, 8 'are in the bottom closure flaps 1, 1 'each two mirror images of each other arranged slots 10, 10' or 11, 11 'stamped at an acute angle to a respective folding line 24 and 25, respectively and extend from this fold line, each fold line 24 or 25 in the area between the slots 10, 10 'and 11, 11' slightly offset towards the box - indicated at 30 and 30 '- are arranged, which is advantageous to a certain waist of the carton leads in their bottom area, so that the folded tabs by a Type frictional engagement are held in the folded state of the carton.

The slots 10, 10 'and 11, 11' are punched in such a way that they by the movable Tongues 17, 17 'and 18, 18' are virtually closed, although they have fold lines 19, 19 ' or 20, 20 'are bendable, so that the insertion tabs 7, 7' and 8, 8 ', the slots 10, 10 'or 11, 11' can happen.

The closure flaps 15, 15 'also each have at their free end in the middle of the V-shaped Recesses 16, 16 ', the bottom of each is slotted - indicated at 31 -, and up to a depth to half the width of the right and left side wall 5 and 5 'is reached, whereby the closure flaps 15, 15' when closing the carton can be locked in one another such that a flat lid surface is obtained.

Both the bottom closure flaps 1, 1 '; 2, 2 'and the closure flaps 15, 15' and the flaps 12, 12 'are separated by a punching cut, wherein the bottom closure flaps 1, 1 'and 2, 2' in their same width greater than half Width and smaller than the entire width of the carton is formed.

The present cuboid carton serves primarily as a so-called moving carton, Of course, the particularly stable floor construction also applies to other boxes is usable.

Claims (18)

A cuboid carton of cardboard, cardboard or the like, comprising a front side wall (4), a rear side wall (4 '), a right side wall (5) connecting the latter and a left side wall (5'), one of in particular four bottom closure flaps (1 , 1 ', 2, 2') formed bottom closure and optionally an upper from at least two flaps (15, 15 ') existing box closure, characterized in that the hinged to the right and left side wall (5. 5') bottom closure flaps (2. 2 ') at their free ends bendable insertion tabs (7. 7', 8, 8 '), in the state of a closed bottom in accordance with the shape and position of the Einstecklaschen (7, 7', 8, 8 ') formed slots (10, 10 ', 11, 11') engage and engage behind the box inside, wherein the slots (10, 10 ', 11, 11') in the at the front and rear side wall (4, 4 ') hinged bottom closure flaps (1 , 1 ') are provided. Box-shaped folding box according to claim 1, characterized in that on the front side wall (4) and on the rear side wall (4 ') provided Bodenverschlussklappen (1, 1') in each case via a preferably formed by Riller fold line (24, 24 ') articulated are in the area between the slots (10, 10 ', 11, 11') inwardly of the box (30, 30 ') extends. Rectangular carton according to claim 1 or 2, characterized in that on the right and left side wall (5, 5 ') articulated bottom closure flaps (2, 2') at their free ends in each case two bendable insertion tabs (7, 7 '; 8, 8 ') exhibit. Rectangular carton according to claim 3, characterized in that the insertion tabs (7, 7 '; 8, 8') have the shape of a triangle whose base line coincides with a fold line (9, 9 ') over which the tuck-in tabs (7, 7 ', 8, 8') are hinged to the bottom closure flaps (2, 2 '). Box-shaped carton according to claim 4, characterized in that the insertion tabs (7, 7 '; 8, 8') have a blunt tip at their free end or are slightly bevelled. Rectangular carton according to one of the preceding claims, characterized in that at the front (4) and rear side wall (4 ') hinged bottom closure flaps (1, 1'), the slots (10, 10, 11, 11 '), respectively by a movable tongue (17, 17 ', 18, 18') are closed. Rectangular carton according to claim 6, characterized in that the tongues (17, 17 ', 18, 18') on one longitudinal side of the slots (10, 10, 11, 11 ') via a respective folding line (19, 19', 20, 20 ') are hinged to the bottom closure flap (1, 1'). Rectangular carton according to one of the preceding claims, characterized in that the hinged respectively to the front and rear side wall (4,4 ') bottom closure flaps (1, 1') in its width greater than half the width and smaller than the entire width of the carton are formed. Punching blank, in particular for producing a multiply closable, cuboidal Folding box according to at least one of claims 1 - 8 with a front Side wall (4) with in particular a corner flap (4 "), a rear side wall (4 '), one connecting the front side wall (4) and the rear side wall (4'), right side wall (5) and a left side wall (5 '), four bottom closure flaps (1, 1 ', 2, 2') for the formation of a box bottom, in particular two closure flaps (15, 15 ') for the formation of a box lid and in particular two reinforcing tabs (12, 12 ') provided between the latter; in which the punched blank is made of cardboard, cardboard or other suitable material, wherein the front side wall (4) with the corner flap (4 "), the front side wall (4) and the rear side wall (4 ') connecting, right side wall (5), the rear side wall (4 ') and the left side wall (5') in each case via fold lines (21; 22; 23) connected in a row arranged in a straight line one behind the other are, wherein on the front side wall and on the rear side wall (4 or 4 ') on the one hand via a fold line (24 or 25), the bottom closure flap (1 or 1 ') and on the other side on the opposite side via a fold line (26 or 27) in each case the closure tabs (15 or 15 ') is articulated, wherein on the right Side wall (5) or on the left side wall (5 ') on the one hand over a fold line (28 or 28 ') the bottom closure flap (2 or 2') and on the other on the opposite Side over a fold line (29 or 29 ') of the reinforcing tabs (12 or 12 ') is articulated. Punching blank according to claim 9, characterized in that oblong holes (13, 13 '; 14, 14' in both the right and in the left side wall (5, 5 ') and in each of the adjoining reinforcing tabs (12, 12') ) are provided as manual intervention. Punching blank according to claim 9 or 10, characterized in that in the bottom closure flaps (1, 1 ') there are provided two slots (10, 10', 11, 11 ') arranged in mirror image with respect to one another, which are at an acute angle to the fold line (24 resp 25) and proceeding therefrom. Punching blank according to claim 11, characterized in that the fold line (24 or 25) extends in the area between the slots (10, 10 '; 11, 11') inwardly of the box (30, 30 '). Punching blank according to claim 12, characterized in that the slots (10, 10 ', 11, 11') are each provided with movable tongues (17, 17 ', 18, 18') articulated via a fold line (19, 19 ', 20, 20') ') are closed. Punching blank according to one of claims 9-13, characterized in that a V-shaped recess (16, 16 ') with an incision (31) is provided in each case in the closing flaps (15, 15') at the free end. Punch blank according to one of claims 9 - 14, characterized in that the bottom closure flaps (2, 2 ') at their free ends in each case two fold lines (9, 9') bendable insertion tabs (7, 7 ', 8, 8'). Punching blank according to claim 15, characterized in that the insertion tabs (7, 7 ', 8, 8') are each chamfered at their free end and formed as a kind of blunt triangle. Punching blank according to one of claims 9-16, characterized in that both the bottom closure flaps (1, 1 ', 2, 2') and the closure flaps (15, 15 ') and reinforcing flaps (12, 12') are separated from one another by a punched cut are. Punching blank according to one of claims 9 - 17, characterized in that the bottom closure flaps (1, 1 ', 2, 2') are formed in their width greater than half the width and smaller than the entire width of the folding box.

Images