METODO E MACCHINA PER LA REALIZZAZIONE DI PACCHETTI RIGIDI A COPERCHIO INCERNIERATO

Rigid packets (1) of the type having a hinged lid are fashioned from diecut blanks (20) presenting a central longitudinal portion (29) flanked by two lateral portions (30), each consisting in a series of longitudinally disposed flaps (31, 32, 33, 34). The method of manufacture involves directing the...

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Bibliographische Detailangaben
Hauptverfasser:	MINARELLI ALESSANDRO, RIGHI MAURIZIO
Format:	Patent
Sprache:	ita
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN AMANNER ANALOGOUS TO PAPER PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING TRANSPORTING WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER
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Beschreibung
Zusammenfassung:	Rigid packets (1) of the type having a hinged lid are fashioned from diecut blanks (20) presenting a central longitudinal portion (29) flanked by two lateral portions (30), each consisting in a series of longitudinally disposed flaps (31, 32, 33, 34). The method of manufacture involves directing the blanks (20) singly and in succession between a pair of contrarotating rollers (54, 55) with dies shaped and positioned to engage each lateral portion (30); the dies are designed to modify a pair of adjoining flaps (32, 33) on each side, which ultimately will be bent through a right angle to form an internal layer (42) of the relative flank face (43) of the packet (1), by producing at least one bend (48) in one flap (32; 33) at an end adjacent to the other flap (33; 32), and forming a projection (45) on the longer flap (33) which in the finished packet (1) will be breasted permanently in contact with an inner reinforcing frame (16).