Cargo-handling apparatus and program

1. A cargo-handling apparatus comprising:

a detector configured to detect information on upper surfaces of a plurality of packages;

a plurality of upper surface sucking portions configured to suck an upper surface of a package, each of the upper surface sucking portions including a plurality of first suction pads and configured to be individually evacuated;

a plurality of side surface sucking portions configured to suck a side surface of the package, each of the side surface sucking portions including a plurality of second suction pads and configured to be individually evacuated;

a first moving device configured to move the upper surface sucking portions and the side surface sucking portions;

a storage that stores dimensional information on the upper surface sucking portions and dimensional information on the side surface sucking portions;

a control unit configured to:

select a package from the packages based on information on the upper surfaces of the packages detected by the detector;

select a maximum number of upper surface sucking portions that come into contact with the upper surface of the selected package from the upper surface sucking portions, based on the dimensional information on the upper surface sucking portions stored in the storage and the information on the upper surface of the selected package;

select a side surface sucking portion in which the second suction pads are closed by the side surface of the selected package, based on the dimensional information on the side surface sucking portions stored in the storage; and

control the first moving device, the upper surface sucking portions, and the side surface sucking portion to suck the upper surface of the selected package by the first suction pads of the selected upper surface sucking portions and suck the side surface of the selected package by the second suction pads of the selected side surface sucking portion; and

a conveyor on which the package sucked by the selected upper surface sucking portion and the side surface sucking portion and moved by the first moving device is placed, and which moves the selected package.

2. The cargo-handling apparatus according to claim 1 , wherein each of the upper surface sucking portions is configured to be individually evacuated.

3. The cargo-handling apparatus according to claim 1 , wherein the first moving device moves the selected upper surface sucking portion to a position at which the selected upper surface sucking portions suck an approximate center of the upper surface, or to a position at which the selected upper surface sucking portions suck a side opposite to the side surface sucking portion from the approximate center.

4. The cargo-handling apparatus according to claim 1 , wherein each of the side surface sucking portions is configured to be individually evacuated.

5. The cargo-handling apparatus according to claim 1 , comprising a second moving device configured to move the selected side surface sucking portion in a direction approaching the side surface and in a direction away from the side surface.

6. The cargo-handling apparatus according to claim 5 , wherein the control unit is configured to control the first moving device to lower the selected upper surface sucking portions toward the package to move the selected upper surface sucking portions to a position where the selected upper surface sucking portions suck the upper surface, and thereafter control the second moving device to move the selected side surface sucking portion to a position where the selected side surface sucking portion sucks the side surface.

7. The cargo-handling apparatus according to claim 1 , wherein:

each of the upper surface sucking portions has a plurality of suction pads; and

each of the side surface sucking portions has a plurality of suction pads.

8. The cargo-handling apparatus according to claim 1 , wherein:

the control unit is configured to select the side surface sucking portion to be used from the side surface sucking portions based on the dimensional information on the side surface sucking portion stored in the storage and the upper surface information on the package.

9. A program for a computer of a cargo-handling apparatus including a detector configured to detect information on an upper surfaces of a plurality of packages, a plurality of upper surface sucking portions configured to suck the upper surface, each of the upper surface sucking portions including a plurality of first suction pads and configured to be individually evacuated, a plurality of side surface sucking portions configured to suck a side surface of the package, each of the side surface sucking portions including a plurality of second suction pads and configured to be individually evacuated, and a storage that stores dimensional information on the upper surface sucking portions and dimensional information on the side surface sucking portions, the program causing the computer to realize:

a function of selecting a package from the packages based on information on the upper surfaces of the package the packages detected by the detector;

a function of selecting a maximum number of upper surface sucking portions that come into contact with the upper surface of the selected package from the upper surface sucking portions, based on the dimensional information on the upper surface sucking portions stored in the storage and information on the upper surface of the selected package;

a function of selecting a side surface sucking portion in which the second suction pads are closed by the side surface of the selected package, based on the dimensional information on the side surface sucking portions stored in the storage;

a function of sucking the upper surface of the selected package by the first suction pads of the selected upper surface sucking portions; and

a function of sucking the side surface of the selected package by the second suction pads of the selected side surface sucking portion.