PACKING METHOD AND UNIT FOR PRODUCING A RIGID PACKAGE WITH A HOLLOW RIB

摘要

A packing method and unit (26) for producing a rigid package (1) with a hollow rib (12; 13); an end portion of a blank (21) is folded about a contrasting body (36; 39) onto a panel (11') of the blank (21) to form the hollow rib (12; 13); a fastening tab (16; 19), which forms the end part of the end portion, is glued to the panel (11') to stabilize the hollow rib (12; 13); and the contrasting body (36; 39) is extracted from the hollow rib (12; 13) once the end portion is folded.