US Patent 7261510 Overhead travelling carriage system

The present invention provides an overhead travelling carriage system in which an overhead travelling carriage 110 is run along a running rail to convey a cassette 14 between processing devices 111. The overhead travelling carriage system is provided with an elevating space 8 for a platform 12 on which transfer means 51 is provided to transfer the cassette 14 and a storage space 10 in which a plurality of shelves are provided in a vertical direction to store cassettes 14. The elevating space and the storage space are arranged in a direction orthogonal to the running rail, as viewed from above. According to the present invention, the stocker requires a reduced space.