B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 75/56 (2006.01) B65B 9/02 (2006.01) B65B 61/14 (2006.01) B65D 71/02 (2006.01) B65D 85/16 (2006.01)
Patent
CA 2090125
ABSTRACT A device for wrapping a bulky package which consists of mineral wool sheets or a roll of mineral. The device has a conveyor for moving the package unit. A roll of film is disposed a distance above the conveyor and a roll of film is disposed below the conveyor. A welding and a stricker bar are movable towards one another for clamping end portions of a wrapping of the films and welding them together. A cutting device is provided for cutting through a transversely running weld formed by the welding bar and also cutting the ends of the wrapping and ends of the films. Films are welded together at their ends to form a vertical curtain against which the package can be displaced to pull the film from the rolls to form the wrapping. The device is characterized in that the welding bar and the stricker bar, seen in the direction of conveyance of the package, are of a predetermined width and the welding bar is provided with at least two heating zones spaced at a distance from another whereby a carrying strap is formed on the periphery of the wrapping. The cutting device has additional tools for making at least one grip opening at a convenience grip area of the carrying strap. The welding bar has at least one additional heating zone close to an edge of the grip openings. A package of bulky mineral wool sheets or a bulky roll of mineral wool having wrapping which is open at opposed ends and which consists of two shrinkable plastic film pieces of which the ends are joined together by two welds. The package is characterized in that an outwardly extending carrying strap is formed in a flap extending outwardly from a weld. The carrying strap is formed from extended ends of the plastic film pieces and has at least one grip opening which is surrounded by a weld and disposed at a convenient location along the strap.
Deutsche Rockwool Mineralwoll-Gmbh
Swabey Ogilvy Renault
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