Laminated, blow-molded container and process for forming one or more air intake holes

Disclosed is a process for forming one or more air intake holes wherein the punch-cutter to be used has a cylindrical blade at the tip, and also has a hooking portion or portions, which is/are disposed on an inner peripheral surface of the cylindrical blade and which performs a function of hooking i...

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Bibliographische Detailangaben
Hauptverfasser:	Sotome Mitsuhiro, Miyajima Hisao
Format:	Patent
Sprache:	eng
Schlagworte:	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 CUTTING CUTTING-OUT HAND CUTTING TOOLS HANDLING THIN OR FILAMENTARY MATERIAL INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES PACKAGES PACKAGING ELEMENTS PACKING PERFORATING PERFORMING OPERATIONS PUNCHING SEVERING SEVERING BY MEANS OTHER THAN CUTTING SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STAMPING-OUT STORING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Disclosed is a process for forming one or more air intake holes wherein the punch-cutter to be used has a cylindrical blade at the tip, and also has a hooking portion or portions, which is/are disposed on an inner peripheral surface of the cylindrical blade and which performs a function of hooking into a portion of the outer layer that has come inside the cylindrical blade to prevent the cylindrical blade from slipping out of that portion of the outer layer at a time when the cylindrical blade is moved backward, the cylindrical blade is pressed forward until the blade edge comes to a position close to the outer layer, and at this position, the outer layer is not yet cut out completely, but there remains a circular uncut portion ahead of the blade edge, then, the cylindrical blade is moved backward.