초록 ▼

A device for emptying the contents of a bag into a hopper includes an arrangement for lifting the bag to a position higher than the top edge of the hopper, an arrangement for transporting the bag from an intermediate position in a frame to an unloading position including a retractable conveyor as th

A device for emptying the contents of a bag into a hopper includes an arrangement for lifting the bag to a position higher than the top edge of the hopper, an arrangement for transporting the bag from an intermediate position in a frame to an unloading position including a retractable conveyor as the upper end of the bag is still engaged by the arrangement for lifting, an arrangement of cutters for cutting the lateral sides of the bag and the leading side of the bag to form a flap connected to the bag by the trailing side which flap will be opened by retracting the forward end of the retractable conveyor to allow the flap to open to discharge the contents as the bag is maintained by the arrangement for lifting over the hopper.

대표청구항 ▼

A device for unloading large bulk bags having an upper end and a bottom interconnected by a continuous sidewall, said device comprising a frame having a portion positioned over a discharge zone, said frame having conveyor means for transporting the bag from a loading position out of the frame to an

A device for unloading large bulk bags having an upper end and a bottom interconnected by a continuous sidewall, said device comprising a frame having a portion positioned over a discharge zone, said frame having conveyor means for transporting the bag from a loading position out of the frame to an intermediate position in the frame and then to an unloading position over the discharge zone and, finally, then, to a removal position outside of the frame, said conveyor means including lift means for engaging an upper end of the bag for hoisting the bag and for holding the bag in an erect position, said conveyor means including retractable conveyor means for supporting a bottom of the bag and transporting the bag from the intermediate position to the unloading position, cutter means for cutting the sidewalls of the bag adjacent the bottom to form an opening flap at the bottom of the bag, said cutter means being positioned in the frame adjacent the unloading position, said retractable conveyor means having an end portion disposed under the bag at the intermediate position and movable with the bag into the unloading position, said end portion being retractable to open the flap to allow contents of the bag to flow into the discharge zone.