METHOD FOR PRODUCING A PALLET-LESS PACKAGING UNIT AND A PACKAGING UNIT PRODUCED ACCORDING TO THE METHOD

Abstract

A method for producing a pallet-less packaging unit has multiple packaging objects stacked to a stack of goods. The objects are stacked with a special layer that forms at least two encroachment areas for fork legs of a lift truck in at least one stack level. The special layer is first stacked on a normal layer larger than the special layer. The stack of goods is wrapped with its encroachment areas with a first film, the stack of goods that is wrapped on one side is turned around so the part of the stack of goods that has the special layer comes downwards and the stack of goods is wrapped with a second film that reaches up to the first film. In embodiments, second encroachment areas extend essentially at a right angle to first encroachment areas. The method provides a pallet-less packaging unit that can be handled more easily.

Claims

1. A method for producing a pallet-less packaging unit that comprises multiple packaging objects that are stacked to a stack of goods and in which the packaging objects are stacked in such a way that a special layer, which forms at least two encroachment areas for fork legs of a lift truck, is formed on at least one stack level, wherein the special layer is stacked at first to a normal layer that is larger in relation to said special layer, the stack of goods is wrapped in any case with its encroachment areas with a first film; the stack of goods that is wrapped on one side is turned around so that the part of the stack of goods that has the special layer comes downwards and that the stack of goods is wrapped with a second film that reaches up to the first film, wherein, the special layer forms two first encroachment areas for the fork legs and two second encroachment areas for the fork legs, wherein the second encroachment areas extend essentially in a rectangular way in relation to the first encroachment areas.

2. The method according to claim 1, wherein at least some packaging units that form the special layer are smaller than the packaging units that form the normal layer.

3. The method according to claim 2, wherein all packaging units that form the special layer are smaller than the packaging units that form the normal layer.

4. The method according to claim 1, wherein the packaging units that form the normal layer are formed with identical sizes.

5. The method according to claim 1, wherein the normal layer is formed with five packaging units and the special layer with four packaging units.

6. The method according to claim 1, wherein the packaging units that form the special layer are bags with a base area whose width is 440 mm+/?30 mm and whose length is 510 mm+/?30 mm.

7. The method according to claim 1, wherein the special layer has a base area whose width (SB) is 880 mm+/?60 mm and whose length (SL) is 1020 mm+/?60 mm.

8. The method according to claim 1, wherein the normal layer has a base area whose width (NB) is 1100 mm+/?60 mm and whose length (NL) is 1300 mm+/?60 mm.

9. The method according to claim 1, wherein bags with different sizes are produced and filled in a bagging facility, which stacks to bags as packaging units to a stack of goods, and fed to a palleting device via a conveying track.

10. The method according to claim 9, wherein the palleting device stacks the bags of the normal layer and the bags of the special layer at a palleting position.

11. The method according to claim 10, wherein the palleting device stacks the bags of the normal layer at a first palleting position and that the bags of the special layer are laid via a laying device of the special layer.

12. The method according to claim 10, wherein the bags of the normal layer and the bags of the special layer are made of the same film material by means of a form-fill-seal method.

13. A method for producing a pallet-less packaging unit that comprises multiple packaging objects that are stacked to a stack of goods and in which the packaging objects are stacked in such a way that a special layer, which forms at least two encroachment areas for fork legs of a lift truck, is formed on at least one stack level, wherein the special layer is stacked at first to a normal layer that is larger in relation to said special layer, the stack of goods is wrapped with its encroachment areas with a first film; the stack of goods that is wrapped on one side is turned around so that the part of the stack of goods that has the special layer comes downwards and that the stack of goods is wrapped with a second film that reaches up to the first film, wherein, the packaging units that form the special layer are bags with a base area whose width (B) is 440 mm+/?30 mm and whose length (L) is 510 mm+/?30 mm, the special layer has a base area whose width (SB) is 880 mm+/?60 mm and whose length (SL) is 1020 mm+/?60 mm, the normal layer has a base area whose width (NB) is 1100 mm+/?60 mm and whose length (NL) is 1300 mm+/?60 mm.

14. The method according to claim 13, wherein bags with different sizes are produced and filled in a bagging facility, which stacks to bags as packaging units to a stack of goods, and fed to a palleting device via a conveying track.

15. The method according to claim 14, wherein the palleting device stacks the bags of the normal layer and the bags of the special layer at a palleting position.

16. The method according to claim 15, wherein the palleting device stacks the bags of the normal layer at a first palleting position and that the bags of the special layer are laid via a laying device of the special layer.

17. The method according to claim 16, wherein the bags of the normal layer and the bags of the special layer are made of the same film material by means of a form-fill-seal method.

18. A method for producing a pallet-less packaging unit that comprises multiple packaging objects that are stacked to a stack of goods and in which the packaging objects are stacked in such a way that a special layer, which forms at least two encroachment areas for fork legs of a lift truck, is formed on at least one stack level, wherein the special layer is stacked at first to a normal layer that is larger in relation to said special layer, the stack of goods is wrapped with its encroachment areas with a first film; the stack of goods that is wrapped on one side is turned around so that the part of the stack of goods that has the special layer comes downwards and that the stack of goods is wrapped with a second film that reaches up to the first film, wherein, all packaging units that form the special layer are smaller than the packaging units that form the normal layer.

19. The method according to claim 18, wherein the packaging units that form the normal layer are formed with identical sizes.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Further details and advantages of the present invention can be taken from the following description of an embodiment of the present invention in connection with the drawings. The following is shown:

[0030] FIG. 1 generally illustrates a top view of a normal layer of the embodiment;

[0031] FIG. 2 generally illustrates a top view of a special layer of the embodiment;

[0032] FIG. 3 generally illustrates a top view from above onto the stack of goods with the outer contours of a normal layer and the dashed contours of a special layer that are located underneath; and

[0033] FIG. 4 generally illustrates a side view of a fully wrapped stack of goods comprising a special layer and a plurality of normal layers.

DETAILED DESCRIPTION

[0034] FIG. 4 shows an embodiment of the stack of goods 2 with multiple packaging objects 4 that are grouped together in respectively one stack level and that should be formed in the present case by bags filled with bulk material. Multiple layers of packaging objects 4 are stacked on top of each other. Each stack level has the same number of packaging objects 4 in the normal layers 5 so that an essentially cuboid-shaped stack of goods 2 is formed. Only the layer that is at first stacked at the top is formed as a special layer 8 and has fewer packaging objects 10. During stacking of the special layer 8, said special layer is stacked at an omnidirectional distance to side areas marked with reference sign 12 of a cuboid that is formed by the normal layers 5.

[0035] The stack of goods 2 formed this way is coated in a counter hood method in a way that is known in principle as can be read from the EP 2 036 818 A1 and/or EP 2 248 722 A1 that can be traced back to the applicant. According to this method, the special layer is located at the very bottom and forms encroachment areas below the lowest normal layer 5.1 that are marked in FIG. 3 with first encroachment areas 14 and second encroachment areas 16. The encroachment areas have approximately one identical cover. Accordingly, the last normal layer 5.1 extends beyond the special layer 8 with approximately the same overhang at all circumferential areas.

[0036] A stack of goods 2 formed this way is formed with a special layer 8, which is shown in FIG. 3, in this embodiment. It consists of four piece item bags 10 with a respective length L of 510 mm and a width B of 440 mm. Therefore, the base area of the special layer has the dimensions SB=880 mm and SL=1020 mm.

[0037] In the stack of goods 2, which is readily packaged and formed as a packaging unit 18, the top normal layer 5.1, which consists like any other normal layer 5 of five packaging objects 4, lies on this special layer 8. These bags 4 have a length l of 650 mm and a width of 440 mm. They are placed next to one another in the way that is illustrated in FIG. 1, with three bags 4 that are adjacent to one another in the longitudinal direction and two bags 4 that are provided at the front side of said adjacent bags and that are adjacent to one another over their broadside. Hence, the normal layer 5 is spread out to base area with a width NB and a length NL of 110 and 1300 mm. In one assumingly concentrical arrangement of the lowest normal layer 5.1 and the normal layers 5 located on top of said normal layer above the special layer 8, each of the encroachment areas is formed with a cover by the first normal layer 5.1 of at least 110 mm that is located on top of said encroachment areas.

[0038] The packaging unit 18 that is formed this way is coated with different film hoods in the embodiment shown in FIG. 4 according to the theory of EP 2 036 818 A1, i.e. a holding layer 20, a first film 22 that is at first pulled over the stack of goods 2 from the lower side located at the top like the holding layer and a second film hood 24, which is formed over the stack of goods 2 that is aligned in a way that the special layer 8 comes downwards after turning of said stack of goods 2. The first and the second film material could be identical or different.

REFERENCE SIGN LIST

[0039] 2 Stack of goods [0040] 4 Packaging objects of the normal layer [0041] 5 Normal layer [0042] 6 Top side [0043] 8 Special layer [0044] 10 Packaging objects of the special layer [0045] 12 Side areas [0046] 14 First encroachment area [0047] 16 Second encroachment area [0048] 18 Packaging unit [0049] 20 Holding layer [0050] 22 First film [0051] 24 Second film [0052] b Width of the packaging object of the normal layer [0053] l Length of the packaging object of the normal layer [0054] B Width of the packaging object of the special layer [0055] L Length of the packaging object of the special layer [0056] NB Width of the normal layer [0057] NL Length of the normal layer [0058] SB Width of the special layer [0059] SL Length of the special layer