Patent attributes
A transport device has a position detection portion, a holding portion attached to an arm, a driving portion to drive the holding portion and the arm, and a control portion. A control portion controls the position detection portion and the driving portion to perform, as one cycle, a procedure to detect a position of a parcel, select parcels based on a predetermined condition, and set priority for the selected parcels, and a procedure to refer to a result of the detection, and cause the holding portion to take out one or more parcels from the accumulation portion in accordance with the priority to transport the parcels to a predetermined location, and excludes, from parcels to be taken out, a second parcel that is present within a predetermined distance from a first parcel and has priority lower than the priority of the first parcel, during the one cycle.