Package forming device, has cover forming unit, peripheral rib of sufficient dimensions to separate transparent sheet in to two zones, central zone with outer surface aligned with outer surface of cover chassis forming unit

摘要

The device has a cover forming unit (50) comprising a transparent unit (60) with a peripheral rib (62) at an edge (53) of an opening (54) of a cover chassis forming unit (51). The rib has sufficient dimensions to separate transparent sheet (61) in to two zones. A central zone (64) has an outer surface aligned with outer surface of the unit (51). A peripheral zone (66) has a skirt making surface in contact with a part of the unit (51).