Device and method for loading a transporting unit

1. A device for loading a transporting unit for transporting piece goods including mail deliveries, the device comprising:

a first conveying unit configured to be moved into the transporting unit and to convey and unload a first stream of piece goods in the transporting unit; and

at least one second conveying unit configured to convey and unload a second stream of piece goods in the transporting unit;

said streams of piece goods configured to receive distributions of the piece goods according to at least one sorting criterion, said sorting criterion being related to at least one physical attribute of the piece goods selected from the group consisting of an extent, a weight, a volume, a surface, a shape and a combination of a plurality of said physical attributes, said sorting criterion being used to differentiate between conveyor-dischargeable and conveyor-non-dischargeable piece goods based on said physical attributes;

said conveying units each having a respective conveyor track disposed at different heights, said conveying units configured to convey said streams of piece goods with said at least two conveyor tracks.

2. The device according to claim 1 , wherein said first conveying unit and said second conveying unit are configured to be moved jointly into the transporting unit.

3. The device according to claim 1 , which further comprises a sorting unit connected to said conveying units using conveyor technology, said sorting unit configured to sort a primary stream of piece goods to generate said first and second streams of piece goods according to said sorting criterion.

4. The device according to claim 1 , wherein said at least two conveyor tracks include an uppermost conveyor track configured to convey the conveyor-dischargeable piece goods.

5. The device according to claim 4 , wherein said at least two conveyor tracks include a lowermost conveyor track having an unloading end and a chute disposed at said unloading end.

6. The device according to claim 5 , which further comprises a lifting device configured to adjust a height of at least said lowermost conveyor track.

7. The device according to claim 6 , which further comprises a working platform for an operator, said working platform being adjustable in height.

8. The device according to claim 4 , wherein said uppermost conveyor track has an unloading end and a conveyor belt at said unloading end having a selectable conveying direction.

9. The device according to claim 4 , wherein said uppermost conveyor track is configured to deposit piece goods in an uppermost third of a usable height of the transporting unit.

10. A method for loading a transporting unit for transporting piece goods including mail deliveries, the method comprising the following steps:

distributing piece goods onto at least first and second conveying units according to a sorting criterion, the conveying units each having a respective conveyor track with different heights relative to one another;

relating the sorting criterion to at least one physical attribute of the piece goods selected from the group consisting of an extent, a weight, a volume, a surface, a shape and a combination of a plurality of said physical attributes;

using the sorting criterion for determining conveyor-dischargeable and conveyor-non-dischargeable piece goods based on the physical attributes;

directing each of the piece goods to a corresponding one of the conveyor tracks based upon being conveyor-dischargeable or conveyor-non-dischargeable;

moving the conveying units into the transporting unit;

unloading piece goods in the transporting unit by using the first conveying unit; and

unloading piece goods in the transporting unit by using the second conveying unit.

11. The method according to claim 10 , which further comprises:

providing the at least two conveyor tracks as a lowermost conveyor track and an uppermost conveyor track;

differentiating between conveyor-dischargeable and conveyor-non-dischargeable piece goods based on a physical attribute of the piece goods using the sorting criterion;

stacking piece goods regarded as conveyor-non-dischargeable by using the lowermost conveyor track in the transporting unit; and

unloading piece goods regarded as conveyor-dischargeable onto the formed stack of conveyor-non-dischargeable piece goods by using the uppermost conveyor track.

12. The device according to claim 1 , wherein said conveyor tracks are each configured different for different off-loading techniques.

13. A device for loading a transporting unit for transporting piece goods including mail deliveries, the device comprising:

a first conveying unit having a first conveyor track configured to be moved into the transporting unit and to convey and unload a first stream of piece goods in the transporting unit; and

at least one second conveying unit having a second conveying track configured to convey and unload a second stream of piece goods in the transporting unit, said second conveyor track being disposed above said first conveyor track;

said first and second conveyor tracks for receiving distributions of the piece goods according to at least one sorting criterion, the sorting criterion being used to differentiate between conveyor-dischargeable and conveyor-non-dischargeable piece goods based on physical attributes of the piece goods;

said first conveyor track configured for receiving the conveyor non-dischargeable piece goods and said second conveyor track configured for receiving the conveyor dischargeable piece goods.