WO2007095989A1

WO2007095989A1 - Stiffening element for boxes, wall elements and/or interior fittings

Info

Publication number: WO2007095989A1
Application number: PCT/EP2006/012558
Authority: WO
Inventors: Eiko Hasse; Wolfgang Barthel; Rudolf TÖPLER
Original assignee: Henkel Kommanditgesellschaft Auf Aktien
Priority date: 2006-02-23
Filing date: 2006-12-27
Publication date: 2007-08-30
Also published as: DE102006008961A1

Abstract

The invention relates to a packaging element (1), comprising a plurality of side walls (2, 3, 4, 5, 12, 13, 14, 15), which can be formed into a substantially closed peripheral surface by using a connecting portion (8, 18) and on which at least two assisting folding lines (6, 7, 16, 17) are arranged in such a way that the packaging element can be collapsed flat for transport or storage and set up as a closed body for use, a stiffening element (19, 20) being arranged on the wall (3, 5, 13, 15) provided with an assisting folding line (6, 7, 16, 17) in such a way that the wall (3, 5, 13, 15) provided with an assisting folding line (6, 7, 16, 17) has a bending resistance gradient of at least 2 N/mm.

Description

Stiffening element for box, wall parts and / or interior fittings

The invention relates to stiffening element for boxes, wall parts of boxes, in particular frames, and / or interior of boxes and a blank for such boxes, wall parts of boxes, in particular frames, and / or interior of boxes and a method for producing a package.

State of the art

For the packaging of a variety of liquid, gel-like, solid and / or free-flowing products such as from the group of laundry detergents, dishwashing detergents, pharmaceuticals, personal care products, agricultural auxiliaries, building materials, dyes, adhesives or food, it is common today to use cardboard packaging.

Cardboard packaging today often have a different from the simple rectangular shape design. This is due to the fact that with a peculiar shape design of a cardboard box by varied design a wider variety of aesthetic appeal to the packaged products is to be provided, on the other hand, in addition to the creation of new aesthetic stimuli, improved ergonomics compared to a rectangular box in the Handling of cardboard packaging can be realized. Both aspects can be critical to the commercial success of a product.

The geometrically higher complexity, however, also requires more complex blanks. Usually, the blanks are connected in such a way that creates a top and bottom open hull. Because these blanks as possible save space to be transported for filling, it makes sense not to transport the hull in an erected state, but folded flat.

Today, it is widely used to deliver partially glued, flat-lying foldable boxes with a lower degree of prefabrication to the packing operation as a flat blank, wherein the forming of the box to the hollow body takes place on a packaging machine.

In the case of a large number of blanks, transport in the flat folded state is not possible, or only possible to a limited extent, if, for example, at least one of the vertical edges is at least partially broken. Therefore, it may be necessary to provide additional auxiliary fold lines which are arranged to allow collapsing as a replacement for the straight edges as the carton collapses.

Such auxiliary fold lines can be provided on any side and in any orientation. For example, the auxiliary folding lines of a foldable cardboard packaging which are off-set in DE202004010230 extend on the side walls in the longitudinal direction, that is to say from the edge of the bottom to the edge of the cover. However, they can also be mounted centrally on the corresponding side wall.

It is also known from DE202004010230, the arrangement of the auxiliary fold lines form so that they take over the original function of the edges when folding, so that the resulting from the bonding hull can be folded flat over these Hilfsfaltlinien.

In order to achieve increased stability in the case of cardboard, the insertion of an inner frame in the cardboard is also known from DE202004010230, for example, wherein the inner frame at least partially conforms to the shape of the cardboard must be adapted. This also results in more complex blanks again the need to provide auxiliary fold lines on the inner frame to ensure transport in the folded state can.

The carton and the associated inner frame can be at least partially glued together. For this purpose, the erected hull is folded over the straight, not broken longitudinal edges in known methods and thus folded flat. The auxiliary fold lines can be provided both on the carton, as well as on the inner frame. It is also possible to provide these auxiliary fold lines only on one of these two elements.

For filling such a carton is set up again and glued to the bottom side. After filling, the lid can also be glued.

In the assembled state of the packaging, however, these auxiliary fold lines lead to an undesired predetermined bending line being formed, so that the corresponding walls are not dimensionally stable and can fold out or bulge outward, for example, under pressure of the filling material or through stacking pressure. In addition to the undesirable aesthetic effects, thereby closing the package is made difficult or even prevented by the lid in particular.

Decisive for the functioning of the closure lid, for example in the case of a detergent carton, is that the side walls do not deform beyond a certain tolerance value, since otherwise it may happen that the closure lid can no longer be placed on the opening of the cardboard container in order to close it closing. It is therefore important that the cardboard has a predictable, preferably uniform and defined stability behavior against the deformation or bulging of cardboard walls. Aufqabe of the invention

The object of the invention is therefore to develop a Faltkartonage that can be transported in the folded state and in the built state, a deformation of the cardboard walls is prevented, the stability of the corresponding walls to be improved by the lowest possible use of materials. A further object is to produce a uniform, widely linear, defined stability behavior of the wall provided with an auxiliary fold line.

solution

The object is solved by the features of claim 1 of the invention.

The object of the inventive solution is to attach a stiffening element to a wall provided with an auxiliary fold line in such a way that deformation, such as bulging, of the corresponding wall is prevented by the filling and / or stacking pressure. The deformation of the wall, in particular by bending stress, can be significantly reduced if the wall provided with the stiffening element has a bending resistance gradient of at least 2N / mm. Furthermore, the stiffened walls with a bending resistance gradient selected according to the invention have a uniform stability behavior over a wide range.

Preferably, the stiffening elements are integrally arranged on the Faltzuschnitt and stiffening by a corresponding convolution provided with the Hilfsfaltlinien walls.

The stiffening elements may preferably be formed as a tab, which are each arranged integrally on a provided with an auxiliary fold line side wall of the packaging element and are hingedly connected to the side wall. The hinge-like connection, which causes the tab to pivot about the corresponding side wall, may be defined by a line of weakness be formed between the side wall and the tab. According to a further preferred embodiment of the invention, the hinge-like connection can be effected without weakening line between side wall and tab by simply folding the tab around the side wall. It is particularly preferred that the tab for reinforcement at least in sections perpendicular to the side wall.

The stiffening elements can on the one hand bring about a stiffening of the wall provided with an auxiliary folding line by increasing the area moments of inertia by arranging on the corresponding wall tabs which are for example L- or U-shaped, concave or convex or which form an L with the wall - Form or U-shape. To further increase the rigidity, these tabs can be connected to a further side wall, wherein these walls are particularly preferably at a right angle to each other.

On the other hand, however, it is also possible to carry out the multi-layered stiffening elements in order to obtain a resistance increase in relation to a deformation by means of a material reinforcement on the wall executed with an auxiliary fold line. Finally, it is conceivable to combine the measures for increasing the area moments of inertia and the material reinforcement with each other.

In a further embodiment of the invention, the stiffening elements and the folding blank can also be formed in two pieces. The stiffening elements are then placed on the folding blank or in the erected condition of the folding blank on the walls provided with the auxiliary fold lines. This can be effected for example by gluing, riveting or any other suitable positive, non-positive and / or cohesive connection technology. In the erected state of a packaging element, the stiffening elements can be fixed in a material, positive or non-positive manner on a wall provided with an auxiliary fold line completely, in points or in sections.

According to a particularly preferred embodiment of the invention, the stiffening elements are glued to a provided with an auxiliary fold line wall, this among other things, but not exclusively pressure-sensitive adhesives, cold sealing, self-adhesive bonding, hot bonding contact bonding and / or hot gluing is understood.

Other ways to fix the stiffening elements include, for example, embossing, knurling, grooving, flanging, folding, riveting, screws, staples, staples or clamps.

The number, shape or design of such connection possibilities are in no way limited by the examples mentioned here. Rather, the present invention extends to all conceivable embodiments of such a connection possibility.

packaging element

For the purposes of this application, packaging elements are understood to mean boxes, in particular folding boxes, wall parts of boxes, connecting and / or stiffening elements as well as interior fittings of boxes as well as any combination thereof.

In particular, a packaging element also comprises the combination of a folding box with an inner frame. Advantageously, the inner frame is made of a material with a greater edge crush resistance than the material of the folding box. The present invention is by no means limited to the number of individual parts of the packaging, or the carton and the inner frame. So it may be advantageous, for example, for production reasons, the inner frame and the carton to produce one piece or two separate blanks. In the latter embodiment, folding carton and inner frame could be glued together, at least partially, in the course of the manufacturing process.

Preferably, the Innenzargenzuschnitt is glued to the Faltschachtelzuschnitt and these thus form a common blank. Subsequently, the fold lines and the auxiliary fold lines are punched onto the common blank and the common blank folded into a closed body and glued using the adhesive tabs. The finished hull is folded flat over the auxiliary fold lines to be space-saving to transport. To fill the collapsed hull is set up again and glued the floor. The stiffening elements are subsequently arranged or folded on the walls provided with an auxiliary fold line. Finally, the contents are filled and the lid glued.

Such blanks may be provided with adhesive tabs for better bonding to a hull. Overlaps on the walls of the carton or the inner frame are conceivable in the context of the present invention.

As the material for such a packaging element, every foldable material comes into question. It may be advantageous, the carton of a good printable material such. As cardboard, and the stability of the overall packaging by the material of the inner frame, z. B. corrugated cardboard to produce. Corrugated paperboard of this type could have a vertical stack compression pressure in the range of 500 N to 2500 N. Both the fold lines and the auxiliary fold lines could be formed, for example, by a groove embossing. This groove embossing could take place both during the creation of the blank and later during the bonding of the blanks.

The packaging element is preferably made of paper, cardboard and / or cardboard.

A paper should preferably have good printability and foldability and have suitable stability. Furthermore, the paper should be suitable for processing in automated manufacturing processes such as erecting and filling plants. The paper may be a chromo paper, vapor phase anticorrosive paper, ceiling paper, duplex paper, vegetable parchment, gummed paper, pressure-sensitive paper, heat-seal paper, single-sided smooth paper, high-tensile paper, woodfree paper, wood-containing paper, kraftliner, kraft paper, kraft paper, kraft sack paper , Light crepe, offset paper, wrapping paper, paraffin paper, parchment substitute, glassine, satin paper, tempered paper, tissue paper, secondary kraft paper, spun paper, straw paper, tincture paper, tracing paper, velor paper, wax paper, wave paper and / or corrugated paper.

A paperboard should also have good printability and foldability and should have suitable stability. Furthermore, the board should be suitable for processing in automated manufacturing processes such as erecting and filling plants. A carton can be selected from the group of chromo cartons, chromo replacement cartons, one-sided smooth cartons, cartons, coated cartons, multiplex cartons, corrugated board, duplex cartons, triplex cartons.

A cardboard should have suitable foldability and appropriate stability. Furthermore, the cardboard should be suitable for processing in automated production processes such as erecting and filling plants are suitable. A paperboard may be corrugated or solid paperboard, the paperboard being a brown board, leather board, brownstone, one-sided plain board, felt board, gray board, hardboard, white board, machine brownstone, machine board, mixed board, multiplex board, duplex board, triplex board, corrugated board, card board, Starkboard, Strohhmischpappe, Wickelpappe, hand cardboard and / or drawing cardboard can be.

folding

Under cartons in the context of this application, in particular folding cartons are understood that form from a blank by folding a suitable container for receiving a filling material, such as Aufrichtschachteln, passage boxes, Faltbodenschachteln, Falthüllenschachteln, cartons with inner liners, belt folding boxes, Schiebefaltschachteln, Steckbodenschachteln, Stülpdeckelfaltschachteln and Aufsatzdeckelschachteln Window boxes, cap boxes such as cover cap boxes or Rändelkappenschachteln, and Laschendeckelschachteln, hull boxes, sliding boxes, Spanschachteln, slip-lid boxes, carrying boxes or shipping boxes understood.

Biegewiderstandsgradient

The 3-point bending stiffness test determines the deformation resistance of a packing, in particular of solid and / or corrugated cardboard, by mostly static but also dynamic mechanical stress. A slight deflection or bulging of packing parts already alters the appearance of a pack, for example by the bulging of the side walls in stacked detergent cartons.

The bending resistance is the mechanical resistance that a flat test pattern, which is firmly clamped at two ends, one centered between the Clamping points and acting perpendicular to the flat test pattern compressive force to collapse or Prüfmusterver-agen opposes.

With this test method, the pressure that a packaged product, for example a detergent powder, exerts on the side walls of a folding box in order to assess the resistance of the packaging against a corresponding deformation or bulging of the packaging.

The test sample is firmly clamped in a so-called 3-point bearing. The test pattern clamped in the 3-point bearing is subsequently arranged in a mechanical or hydraulic compression testing machine such that the pressure cylinder acting on the clamped test pattern is positioned centrally above the clamped test pattern. The pre-load applied by the pressure testing machine is 0.1 N and the pre-load or testing speed is 10 mm / min.

While in the trial the impression cylinder acts on the clamped test pattern, the compression and force acting on the test pattern are recorded.

FIG. 18 shows the force-displacement diagram for a reference test pattern. The reference test pattern, which is also shown in FIG. 21, is a substantially rectangular sheet member having a height of 105 mm and a width of 115 mm. Centered to the width of the test pattern over the entire height runs an auxiliary fold line, which is formed in the test pattern as a crease line. The test sample consists of a corrugated cardboard with B-WeIIe.

The force-displacement diagram for the reference test pattern shows that a force of just over 4 N is sufficient to cause the test sample to fail. Furthermore, the force-displacement curves do not show a uniform gradient pattern. Both almost linear and parabolic courses were recorded. Due to this unpredictable variant stability behavior, the dimensioning of a folding carton with auxiliary fold line difficult in terms of their resistance to bulging or deformation.

The flexural resistance gradient is a measure of the resistance of the test specimen to deflection. The bending resistance gradient results from the force-displacement diagram and is defined as the ratio of the maximum force that the test piece opposes to the penetrating pressure cylinder and the deformation that the body has reached when reaching the maximum force.

The following table lists the determined bending resistance gradients for the reference test specimen.

Reference numerals:

1. Packing element (folding box)

2nd side wall (folding box)

3rd side wall (folding box)

4th side wall (folding box)

5. Sidewall (folding box)

6. auxiliary folding line (folding box)

7. auxiliary folding line (folding box)

8. connecting section (folding box)

9. fold line

10th folding line

11. Packing element (inner frame)

12. Sidewall (inner frame)

13. Sidewall (inner frame)

14. Sidewall (inner frame)

15. Sidewall (inner frame)

16. auxiliary fold line (inner frame)

17. auxiliary fold line (inner frame)

18. connecting section (inner frame)

19. stiffening element

20. stiffening element

21. first surface element

22. second surface element

23. Folding line

24. Folding line

25th recess

26. Triangular surface element

27. Triangular surface element characters

1 shows a folding carton blank with auxiliary fold lines

2 shows a blank for an inner frame with auxiliary fold lines and a two-layer formable stiffening element

3 shows an inner frame with auxiliary fold lines and a two-layer formable stiffening element in the erected state

4 shows a blank for an inner frame with auxiliary fold lines and a two-layer formable stiffening element

5 shows an inner frame with auxiliary fold lines and a two-layer formable stiffening element in the erected state

6 shows a blank for an inner frame with auxiliary fold lines and a two-layer formable stiffening element

7 shows an inner frame with auxiliary fold lines and a two-layer formable stiffening element in the erected state

8 shows a blank for an inner frame with auxiliary fold lines and a two-layer formable stiffening element

9 shows an inner frame with auxiliary fold lines and a two-layer formable stiffening element in the erected state

Fig.10 shows a blank for an inner frame with auxiliary fold lines and a three-layer formable stiffening element

11 shows an inner frame with auxiliary fold lines and a three-layer formable stiffening element in the erected state 12 shows a blank for an inner frame with auxiliary fold lines and a stiffening element perpendicular to the wall provided with an auxiliary fold line

13 shows an inner frame with auxiliary fold lines and a stiffening element perpendicular to the wall provided with an auxiliary fold line in the erected state

FIG. 14 shows a blank for an inner frame with auxiliary fold lines and a stiffening element perpendicular to the wall provided with an auxiliary fold line

15 shows an inner frame with auxiliary fold lines and a stiffening element perpendicular to the wall provided with an auxiliary fold line in the erected state

16 shows a blank for an inner frame with auxiliary fold lines and a stiffening element which is partially vertical to the wall provided with an auxiliary fold line

FIG. 17 shows an inner frame with auxiliary fold lines and a stiffening element in sections, standing vertically on the wall provided with an auxiliary fold line

Fig. 18 shows the force-displacement diagram of a reference test piece

FIG. 19 shows the force-displacement diagram of a stiffening element according to FIG. 8

FIG. 20 shows the force-displacement diagram of a stiffening element according to FIG. 14 Descriptions of the Ausführunqsbeispiele

1 shows a folding board blank 1 with the auxiliary fold lines 6 and 7. The folding board blank has a front wall 2, a rear wall 4, the side walls 3 and 5 and a connecting portion 8, which are hinged together via fold lines. The connecting portion 8 is connectable to the front wall 2, in particular by gluing, whereby the blank 1 can be formed into a body.

The auxiliary fold lines 6 and 7 are arranged centrally on the side walls 3 and 5 in the embodiment shown. However, the auxiliary fold lines can also be arranged at any other suitable position.

It is also possible, analogous to the stiffening elements of the inner frame described below, to arrange stiffening elements directly on the folding carton blank.

FIG. 2 shows a blank for an inner frame 11 with auxiliary fold lines 16, 17 and a stiffening element 19, 20 that can be formed as a two-layer.

In this embodiment of the invention, the stiffening element is designed as a two-part tab with a first surface element 21 and a second surface element 22.

The first surface element 21 of the tab 19 is connected to the front side of the wall 15. The connection point preferably has a fold line, so that the first region 21 can be articulated on the end face of the wall 15. The second region 22 of the tab 19 is connected to the first region 21 along a connecting line 24 which extends substantially parallel to the auxiliary fold line 16,17, articulated. Figure 3 shows the known from Figure 2 blank in the erected state. As in this and all subsequent embodiments, the connecting portion 18 is connected to the side wall 12 for setting up the blank, preferably by gluing, so that forms a hull.

For folding and positioning the stiffening element 19, 20 on the side wall 13, 15, the second area 22 of the tab 19 is first folded over onto the outwardly directed surface of the first area 21.

Then, the first portion 21 and the second portion 22 tab 19 is pivoted by 180 ° around the wall 15 so that the first portion 21 rests on the inside of the wall 15, so that a two-layer stiffening element is formed.

Figures 4 and 6 show a further blank for an inner frame 11 with Hilfsfaltlinien 16, 17 and a two-layer formable stiffening element 19,20.

In this embodiment, the second surface element 22 is connected in a hinged manner to the first surface element 21 via a fold line 24. The fold line 24 extends at an angle of about 45 ° to the Hilfsfaltline 16th

As shown in FIGS. 5 and 7, the tab 19, which acts as a stiffening element, is first pivoted about the wall 15 by 180 ° so that the first surface element 21 bears against the inside of the wall 15. Then, the second region 22 of the tab 19 is folded over along the 45 ° fold line 24, so that a two-layer stiffening element is formed.

FIG. 8 shows a blank for an inner frame 11 with auxiliary fold lines 16, 17 and a stiffening element 19, 20 that can be formed as a two-layer, that is configured as a tab 19, 20 that can be pivoted about the wall 15. The tab 19, 20 is divided by a fold line 23 into two substantially rectangular, congruent triangular face elements 26, 27 and is designed such that the triangular face elements 26, 27 can be pivoted along the fold line 23.

In Figure 19, the force-displacement diagram is recorded for a one-piece test pattern according to Figure 8, which has a tab disposed at the top, which forms by folding a 3-layer stiffening element.

The test sample used is shown in FIG. The test specimen has a substantially rectangular hull with a height of 105mm and a width of 115mm and a substantially rectangular tab with a width of 115mm and a height of 105mm. By extending at a 45 ° angle to the top edge line of weakness, the rectangular tab is divided into two, substantially congruent, triangles. Across the entire height, including the tab, there is an auxiliary fold line centered to the width of the test sample, which is formed in the test pattern as a crease line.

In order to form the multilayer stiffening element, the triangle with the free catheter edges along the 45 ° weakening line is first folded onto the congruent triangle that is pivotably connected to the torso of the test pattern. The resulting triangular two-ply tab is then folded along the top edge of the test specimen body so that a three-ply stiffener is formed over the auxiliary fold line of the test specimen.

The following table lists the determined bending resistance gradients for the test specimen described above with a 2-fold folded tab as a stiffening element.

As shown in FIG. 9, the tab 19, 20 is initially folded along the fold line 23 such that the triangular face elements 26, 27 lie opposite one another. This arrangement is then pivotable about the wall 15, so that the triangular surface element 26 rests on the inside of the wall 15.

FIG. 10 shows a blank for an inner frame, whose side walls 13 and 15 each have a centrally arranged auxiliary fold line 16 or 17. On the side wall 13,15 a stiffening element 19,20 is arranged.

The stiffening element 19, 20 consists of a tab, which in turn has a first region 21 and a second region 22.

The first area 21 is connected to the front side of the wall 15. The connection point preferably has a fold line, so that the first region 21 can be articulated on the end face of the wall 15.

A fold line 23 divides the first region 21 into two substantially rectangular, congruent triangular surface elements 26, 27 and is configured in such a way that the triangular surface elements 26, 27 are pivotable along the fold line 23.

The second region 22 of the tab 19, 20 is connected to the first region 21 along a connecting line 24, which runs substantially parallel to the auxiliary fold line 16, 17. FIG. 11 shows the blank known from FIG. 10 in the erected state.

The tab 19, 20 acting as a stiffening element is first folded along the fold line 23 in such a way that the triangular surface elements 26, 27 lie opposite one another and the second surface element 22 lies on the side facing away from the formed trunk. Then, the second portion 22 of the flap 19, 20 is folded down along the fold line 24, so that a three-layered stiffening element is formed. This is then pivotable about the wall 15, so that the triangular surface element 26 rests on the inside of the wall 15.

Advantageously, the stiffening element thus formed is fixed to the wall 13, for example by gluing.

FIG. 12 shows a blank for an inner frame with auxiliary fold lines and a stiffening element perpendicular to the wall provided with an auxiliary fold line

The stiffening element comprises in this embodiment, a first surface element 21 and a second surface element 22, which are connected via the parallel to the auxiliary fold line 16 extending fold line 24 articulated to each other.

The fold line 24 extends in alignment with the abutting edge between the side wall 15 and 14.

The first, substantially rectangular surface element 21 is arranged on the side wall 15 so as to be pivotable about the side wall 15. The first surface element 21 has a straight fold line 23 which extends at a 45 ° angle from the upper edge of the wall 15 over the surface element 21 and has its origin in the abutting edge between the side wall 15 and 14 and the upper edge of the side walls 15 and 14. The second surface element 22 is pivotably connected to the edge via the folding line 24 on the first surface element 21 and with another edge pivotally connected to the side wall 14.

As shown in FIG. 13, in order to set up the stiffening elements, the first surface element 21 is first pivoted about the upper edge of the wall 15. In this case, the first surface element buckles along the fold line 23, so that the corresponding surfaces of the first surface element 21 are opposite.

The second surface element 22 forms in the assembled state of the frame 11 a perpendicular to the side walls 15 and 14 angles.

FIG. 14 shows a blank for an inner frame with auxiliary fold lines and a stiffening element 19, 20 which is perpendicular to the wall 13, 15 provided with an auxiliary fold line 16, 17. The stiffening element 19,20 is arranged as a tab on the end face of the wall 15,16 pivotally.

FIG. 15 shows the blank according to FIG. 14 in the erected state. Here, the tab 19,20 is L-shaped about the end face of the wall 15,16 pivoted substantially perpendicular to the wall 15,16.

FIG. 20 illustrates the force-displacement diagram for a one-piece test pattern according to FIG. 14 in that a tab arranged at the top end has a stiffening element.

The test pattern shown in Figure 22 has a substantially rectangular hull with a height of 105mm and a width of 115mm and a tab with a width of 115mm and a height of 40mm. The tab is formed integrally with the test pattern and designed to be articulated along the top edge. Across the entire height, including the tab, there is an auxiliary fold line centered to the width of the test sample, which is formed in the test pattern as a crease line. The tab is set up for testing essentially perpendicular to the test pattern level.

The force-displacement curves of this specimen have a nearly linear course over a wide range, whereby a significantly more predictable and defined stability kinetics of a side wall reinforced according to the invention can be achieved.

The following table lists the determined bending resistance gradients for the test specimen described above with a L-shaped tab as stiffening element.

FIG. 16 shows a blank for an inner frame 11 with auxiliary fold lines 16, 17 and a stiffening element 19, 20 that is designed as a tab and is arranged pivotably on the wall 13, 15. The tab 19, 20 also has a first fold line 9 and a second fold line 10, which run perpendicular to the auxiliary fold line across the width of the tab 19, 20.

FIG. 17 shows the blank known from FIG. 16 in the erected state. The tab 19, 20 is in each case folded around the first fold line 9 and the second fold line 10, so that the end of the tab 19, 20 bears against the side wall 13, 15. In this case, the portion of the front edge of the wall 13,15 to the first fold line 10 of the tab is substantially perpendicular to the wall 13,15. Preferably, the voltage applied to the wall 13,15 end of the tab 19,20 fixed to the wall. This can be realized for example by an adhesive or a riveted joint.

In a further, not shown embodiment, the side wall 13,15 forms with the tab 19,20 has a substantially U-shaped profile. Also, the tab may have a concave or convex shape.

Claims

claims

A packaging element (1) comprising a plurality of side walls (2, 3, 4, 5, 12, 13, 14, 15) which are malleable via a connecting portion (8, 18) to form a substantially closed peripheral surface and at least on soft ones two auxiliary fold lines (6, 7, 16, 17) are arranged such that the packaging element (1) can be folded flat for transport or storage and for use in a closed body, characterized in that an auxiliary fold line (6, FIG. 7, 16, 17), a stiffening element (19, 20) is arranged in such a way that the wall (3, 5, 8) provided with an auxiliary fold line (6, 7, 16, 17) , 13, 15) has a bending resistance gradient of at least 2 N / mm.

2. Packaging element according to claim 1, characterized in that the stiffening element (19,20) shaped as a tab is hingedly connected to a wall (2,3,4,5,12,13,14,15).

3. Packaging element according to one or more of the preceding claims, characterized in that the stiffening element (19,20) folding lines (23,24) which are configured such that stiffening element (19,20) in the folded state in a multi-layered at one with a Auxiliary fold line (6,7,16,17) provided wall (3,5,13,15) can be arranged.

4. Packaging element according to one or more of the preceding claims, characterized in that the stiffening element (19,20) in the assembled state of the packaging element substantially perpendicular to a with an auxiliary fold line (6,7,16,17) provided wall (3,5 , 13,15).

5. Packaging element according to one or more of the preceding claims, characterized in that the stiffening element (19,20) forms an angle perpendicular to two adjacent side walls (14,15) angle (22).

6. Packaging element according to one or more of the preceding claims, characterized in that the packaging element (1) is a box, in particular a folding box

7. Packaging element according to one or more of the preceding claims, characterized in that the packaging element (1) is a wall, connecting and / or stiffening element for a folding box, in particular a frame.

8. Packaging element according to one or more of the preceding claims, characterized in that the fold lines and the auxiliary fold lines are formed by a groove embossing.

9. Packaging element according to one or more of the preceding claims, characterized in that the packaging element (1) is made of cardboard or similar material.

10. Packaging element according to claim 1, characterized in that the corrugated cardboard has a vertical stack compression pressure of at least 500 N to 2500 N.

11. Carton, in particular for detergents and cleaning agents, comprising a box bottom, a hull, which via a connecting portion (8,18) of a plurality of side walls (2,3,4,5,12,13,14,15) illustrated and on soft at least two auxiliary fold lines (6,7,16,17) are arranged such that the carton is folded flat for transport or storage and for use a closed hull can be formed, a box head, characterized in that the folding box comprises an inner frame according to one or more of claims 1 to 10.

12. A method for producing a folding box with the features of claim 11, characterized in that the Innenzargenzuschnitt is glued according to one or more of claims 1 to 10 with a Faltschachtelzuschnitt and thus forms a common blank, the fold lines and the Hilfsfaltlinien on the common blank be punched, the common blank is folded into a closed hull and glued with the help of adhesive tabs, the finished hull is folded flat over the auxiliary folds to be space-saving transportable, for filling the collapsed fuselage is repositioned, the bottom is glued, the stiffening elements (19, 20) are arranged on the walls (3,5, 13, 15) provided with an auxiliary fold line (6, 7, 16, 17), the contents are filled and the lid is also glued.