Opening device for package, mold for molding opening device for package, and package having opening device

• Main Authors: VIETRI ANNA ROSA, MARTINI, PIETRO, SANON PAOLO
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2024
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; 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; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; STORING; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

An opening device (4, 4 ') of a packaging material (3) for a specified pouring opening of a package (1) is described. The opening device (4, 4 ') comprises a base frame (9), a collar (10) integrally connected to and extending from the base frame (9), and a closing element (12) configured to cover and/or close a specified pouring opening. The closure element (12) is removably secured to the initial contact portion (21) of the collar (10). The collar (10) comprises a sealing ring (24) having a first inner surface (26) facing the flow channel (11) and an outer surface (27) opposite the first inner surface (26). The base frame (9) comprises a second inner surface (38) facing the outer surface (27). The base frame (9) comprises a first contact surface (29) configured to contact the packaging material (3) from the first face (7) and a second contact surface (30) configured to contact the packaging material (3) from the second face (8). The initial contact portion (21) is interposed between the first contact surface