Tubular bagging machine with an asymmetrical forming shoulder and tubular bags with an edge-side longitudinal seam

In a tubular bagging machine including a storage roller and guide rollers for feeding a flat film band to an asymmetrical forming shoulder in a film feeding direction, collar chest parts of the forming shoulder having different lengths and including a longer collar chest part that extends beyond a centerplane of the forming shoulder, a shoulder sleeve that has a longitudinal axis, and a collar neck part, the forming shoulder extending around a centerplane, the centerplane extending through the longitudinal axis of the shoulder sleeve and a center of the collar neck part, film feeding means for moving the film band, a fill pipe for receiving the film band reshaped into a film tube, a longitudinal welding device for creating a longitudinal seam on the film tube, a cross welding device having laws for producing cross seams, and the improvement comprising a separating device for separating the film tube, the separating device having at least one flat expanding element aligned parallel with respect to the jaws and connected to the fill pipe, the at least one flat expanding element extending radially outward from said fill pipe, the at least one expanding element being in a plane with the sealing surfaces of the jaws of the cross welding device when the jaws are closed, the at least one expanding element deflecting an edge of the film tube, and the longitudinal welding device being provided after the at least one expanding element in the film feeding direction, said longitudinal welding device being directed against the deflected film tube edge.