Former, bagmaking and packaging machine, and method of manufacturing bagmaking and packaging machine

A bagmaking and packaging machine that forms a packaging material in a tubular shape and packages packaging articles, the bagmaking and packaging machine comprising:

• a former that folds and guides a packaging material, the former comprising:
• a collar member that guides the packaging material;
• and
• a first tube member that forms in a tubular shape the packaging material guided by the collar member, the first tube member having an upper end surface and a cutout portion separated from the upper end surface by a depth that is greater than a thickness of the collar member such that the upper end surface is not even with the surface of the collar member,
• the first tube member having one end to which the collar member is directly connected, and including a first mating portion,
• a wraparound member around which the packaging material folded by the former is to be wrapped;
• and
• a support member that supports the former and the wraparound member, the first mating portion being mated with the support member.