Closing means

摘要

Closing means comprises a neck (6) with which a cap (7) is associable, said neck (6) having an end closed by a wall (14), in said end there being provided a weakening line (15) that surrounds said neck (6), said cap (7) being provided with opening promoting means (28) arranged for engaging with further opening promoting means (29) of said wall (14) to separate at least a part of said wall (14) of said neck (6) along said weakening line (15).