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AssigneeKlaus Reinhold Maschinen-und Geraetebau GmbH
InventorVolker Broenstrup
Estimating the term…
In the case of a method for producing a packing material from plastic film or a similar weldable material in the form of a bag or sack with side folds, the front and rear walls, as well as the side walls are formed from separate sections of material, which are connected with one another by welded seams. The material sections of the front wall and the rear wall are formed from a first and a second flat main sheet of material which, after a mutual overlapping is brought about, are conveyed in a first, common conveying direction. A third flat sheet of material is folded into a web with side folds, severed from the sections with side folds at a specified length and conveyed in a second direction transversely to the first conveying direction and placed upon one of the two main sheets of material. The bottom of the bag or sack in turn is formed by a separate material section of a fourth flat material sheet, which is brought together with at least one of the two main sheets of material, then conveyed parallel to the first conveying direction and welded together with the sections having the side walls as well as with the two main sheets of material along their adjoining side edges.
A method of producing a package having first and second side walls joined to side fold sections and a bottom section joined to said first and second side walls and to said side fold sections, comprising transporting in a first direction (2) a continuum of first packaging material (1) which is to form said first side wall of said package, transporting in said first direction (2) a continuum of second packaging material (3) which is to form said second side wall of said package, transporting in a second direction (7) a plurality of individual lengths of third packaging material (14) having overlapping folded parts (12) which are to form the side fold sections of said package, transporting in said first direction (1) a continuum of fourth packaging material (21′) having overlapping folded parts which are to form the bottom of said package, disposing said fourth packaging material (21′) in at least a partial superimposed relationship with said first packaging material (1), disposing said first and fourth packaging materials (1, 21′) in at least a partial superimposed relationship with individual lengths of said third packaging material (14), transporting said at least partial superimposed first, third and fourth packaging materials (1, 14, 21′) in said first direction (1) into at least a partially superimposed relationship with said second packaging material (3), joining at least parts of said at least partially superimposed first, second, third and fourth packaging material (1, 3, 14, 21′), and severing said first, second, third and fourth packaging material (1,3, 14, 21′) along a severing line extending generally transversely of said first direction (1) to thereby provide a plurality of packages each formed by severed lengths of first and second packaging materials (1,3) which form the first and second side walls of the package, by severed lengths of third packaging material (14) which form said side fold sections of the package, and by severed lengths of fourth packaging material (21′) which form the bottom of said package.
A method of producing a package having first and second side walls joined to side fold sections and a bottom section joined to said first and second side walls and to said side fold sections, comprising transporting in a first direction (2) a continuum of first packaging material (1) which is to form said first side wall of said package, transporting in said first direction (2) a continuum of second packaging material (3) which is to form said second side wall of said package, transporting in a second direction (7) a third packaging material (14) having overlapping folded parts (12) which is to form the said side fold sections of said package, transporting in said first direction (1) a continuum of fourth packaging material (22) having overlapping folded parts which are to form the bottom of said package, disposing said third packaging material (14) in at least a partial superimposed relationship with said first packaging material (1), disposing said first and third packaging material (1, 14) in at least a partial superimposed relationship with said second packaging material (3), transporting said at least partially superimposed first, second, and third packaging materials (1, 3, 14) in said first direction (1) into at least a partially superimposed relationship with said fourth package material (22), joining at least parts of said at least partially superimposed first, second, third and fourth packaging material (1, 3,14, 22), and severing said first, second, third and fourth packaging material (1,3, 14, 22) along a severing line extending generally transversely of said first direction (1) to thereby provide a plurality of packages each formed by severed lengths of first and second packaging materials (1,3) which form the first and second side walls of the package, by severed lengths of third packaging material (14) which forms said side fold sections of the package, and by severed lengths of forth packaging material (22) which form the bottom of said package.
A method of producing a package having first and second side walls joined to side fold sections and a bottom section joined to said first and second side walls and to said side fold sections, comprising transporting in a first direction (2) a first packaging material (1) which is to form said first side wall of said package, transporting in said first direction (2) a second packaging material (3) which is to form said second side wall of said package, transporting in a second direction (7) a third packaging material (14) having overlapping folded parts (12) which is to form said side fold sections of said package, transporting in said first direction (1) a fourth packaging material having overlapping folded parts which are to form the bottom of said package, disposing said first, second, third and fourth packaging material in at a least a partial superimposed relationship, and severing said first, second, third and fourth packaging material along a severing line extending generally transversely of said first direction (1) to thereby provide a plurality of packages each formed by severed lengths of first and second packaging materials (1,3) which form the first and second side walls of the package, by severed lengths of third packaging material (14) which form said side fold sections of the package, and by severed lengths of fourth packaging material which form the bottom of said package.
Dependencies are inferred from the claim text.