B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 81/05 (2006.01) B31C 3/00 (2006.01) B65B 9/20 (2006.01) D04H 1/64 (2006.01)
Patent
CA 2145125
A packing unit (20) is disclosed for filling cavities in packaging containers, boxes, etc. in order to hold items securely in place. It has a having a casing (21) consisting of a web of material (23) and formed in the manner of a wound tubular roll (22) and filled with free-running packing material (11) characterized in that the web of material takes the form of a web (23) of preferably biodegradable non-woven material which is impregnated substantially over its entire surface with a heat-sealable bonding agent. A device (31) for manufacturing the packing units (20) is also disclosed. It has a preferably vertically oriented hollow winding core (32) with a feed mechanism (33) for feeding the web of material. The mechanism is oriented at a given angle to the axis of the winding core (32). The device includes a drive mechanism (36) to withdraw the web of material (23) from the feed device (33) and for wrapping the web of material around the winding core (32). Also, a device (46) is provided for joining the overlapping longitudinal edges (24, 25) of the web of material (23) in the area where the first layer of the web of material is wrapped around the winding core. Furthermore a filling hopper (67) is arranged above the hollow winding core (32) to accept the free-running packing material (11). A sealing device (51, 52) and a cutting device (51, 62) are arranged below the winding coil (32). The drive device (36) for withdrawing the web of non-woven material (23) takes the form of a recirculatingly driven endless belt (37) arranged transverse to the axis of the winding coil (32) and at an angle corresponding substantially to the feed angle of the web of non-woven material, and running at a wrap- around angle of approximately 360° around the winding core (32) on top ofthe web of non-woven material (23).
Gowling Lafleur Henderson Llp
Sperner Franz
LandOfFree
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