Patent ID: 7841155

Claim:
A tool for a bag forming machine for deforming a plain web of wrapping material into a tube, comprising: a filling pipe having a surface and a center axis; and a forming shoulder including a first part, a second part and a third part, the forming shoulder including a channel, said filling pipe being arranged in said channel, said filling pipe and said channel being designed and arranged to form a passage gap, said passage gap being designed and arranged to allow for passage of the web of wrapping material and of the tube, the third part being designed and arranged to be stationary and to continuously extend in a vertical direction to limit said channel by a circumferential angle which is less than 180°, said first part and said second part being arranged next to said third part to form a part of said channel; said forming shoulder being designed and arranged to be divided in a division plane to form said first part and said second part, the division plane being defined by the center axis, said first part and said second part being designed and arranged to be pivotable with respect to one another such that the first part and said second part can be moved into a closed position in which they surround said filling pipe and into an opened position, said first part and said second part being designed and arranged to be pivotable such that they move approximately in a radial direction with respect to the surface of said filling pipe when being moved into the closed position.