Package made from single cardboard blank

p0001The invention relates to a package or the like of a one-piece cardboard blank. as described in oberbegritt of claim 1.

p0002Such packages (see example US Patent 4,362,245) are very beneficial in their application and are particularly suitable as liquid packaging, while still providing sufficient strength properties even with a large load capacity.

p0003but The result is that they are very difficult to open.

p0004The invention has the object of providing a package of the kind set forth so that it is also no tools easy to open and empty.

p0005This object is achieved by the features in the know Lichen of claim 1.

p0006This can be the packaging detect the edge strips and tear with the aid.

p0007In addition, a truly flat-lying upper head part of the package is ensured, which can then also be easily opened.

p0008it is also very advantageous if according to the invention at the transition from the free sidewall half to edge strips a notch is provided.

p0009Thus the tearing is even easier.

p0010A further advantageous embodiment of the invention is that the sealed seam at the top end of the package extends stepped and parallel to the outer edge.

p0011This is then simultaneously with ripped the seam when tearing open the packaging.

p0012This simultaneous rupture of the seal is guaranteed in any case, if the present invention, the sealing seam in the edge strip runs above an imaginary extension line of the upper edge of the free side wall.

p0013In the drawing the invention is illustrated using an exemplary embodiment. They show:<dl id="dl0001"><dt>Fig.1</dt><dd>a side view of a package,</dd><dt>Fig.2</dt><dd>a graph of the same packaging and</dd><dt>Fig.3</dt><dd>a view of a pre-glued and then flattened packaging.</dd></dl>

p0014With 1 is shown in Figures 1 and 2 designates a package which is erected from a one-piece cardboard blank. This carton blank is coated both on its inside as well on its outside with a sealable plastic. The package has two side walls 2 and 3 and two narrower end walls 4 and 5 and a bottom portion 6. The two-section side wall 2 is closed by a longitudinal sealing seam 7, which seal 7 passes via the also two-part bottom section 6 and thus the package top and bottom open sleeve forms that can be laid flat again, as in Fig.3 is illustrated. The sleeve is folded over in each case two of four between the side walls 2,3 on the one hand and the end walls 4,5 on the other hand extending fold lines 8,9,10,11. The bottom section 6 is separated from the respective side wall by a 2.3 arc-shaped fold line 12 or 13, whose ends are connected by a lower end of the end walls 4.5 across this running, just fold 14.15. The divided by these fold lines 14,15 sections are divided by two fold lines 16,17 to gusset corners.

p0015For erecting the package, the sleeve is first brought back into a rectangular shape in cross section, which is then closed at its lower end by a transverse sealing seam. This transverse sealing seam is then folded over until it bears against the bottom portion and at the same time easily pushed the ground to the inside. This gusset corners formed by the fold lines 14,15,16,17 are approximately perpendicular from the ground and are applied in a further operation on this. The packaging can now be filled at its upper side. a transverse sealing seam 18 is mounted Then again, having the dot-dash line indicated course.

p0016This sealing seam 18 extends over one half of the two side walls 2,3 over the folded end wall 5 as well as a on the other half of the two side walls and the other end wall integrally formed edge strip 19 and is Z-shaped. At the beginning of the edge strip 19 a notch 20 is mounted at the transition between this and the free sidewall half.

p0017To open the package is torn at the notch 20 and the edge strip 19 demolished approximately along a line 21st thereby the seal 18 is removed in the region of the boundary edge and opened the package in this area. An oblique folding line 22 is then used to give a pouring spout can be formed, which significantly facilitates the pouring of the contents.