Patent ID: 6951090

Claim:
A packaging machine comprising: a former having a guiding member and a tube connected to said guiding member for forming an elongated bag-making material into a tubular form; a longitudinal sealer disposed on a front side of said tube for sealing mutually overlapping side edge parts of said tubularly formed bag-making material in a longitudinal direction; and a transverse sealer for sealing said longitudinally sealed bag-making material in a transverse direction transverse to said longitudinal direction to thereby package articles dropped down through said tube; wherein said tube has a conical part which expands conically upward and a cylindrical part which is connected to and extends downward from said conical part, said cylindrical part having an opening on a back surface, said opening extending downward from an upper part of said cylindrical part proximal to said conical part, said cylindrical part having an unopened part near a lower end part.