Patent attributes
A storage system comprises a first grid structure of storage cells, each cell being arranged to accommodate a vertical stack of storage bins, the first grid structure having a top level. The system further comprises a first vehicle, arranged to move horizontally at the top level of the first grid structure, and a bin elevator, arranged to convey a bin in a vertical direction between the top level of the grid structure and a delivery station. The first vehicle is further arranged to receive a storage bin from a storage cell at the top level of the first grid structure and to deliver the storage bin to the bin elevator. The bin elevator is arranged to receive a bin from the vehicle at the top level of the first grid structure and to convey the bin to the delivery station. The storage system further comprises one or more additional grid structures of storage cells at a different vertical level than the first grid structure, and additional vehicles that is arranged to move horizontally at the top level of the additional grid structures.
