| 摘要 |
A materials handling system includes a railbound storage crane for transporting goods in storage corridors, and a transfer carriage (30) for moving the crane transversely between two storage corridors. The system also includes a transfer carriage drive means and the transfer carriage includes a carrier frame (32) for supporting and stabilizing the crane during its movement between the storage corridors. The drive means (17, 50) is mounted on the crane and includes a motor-driven wheel (51) which abuts a carriage support pad (39) for forward driving of the transport carriage. The crane conveniently includes means (53, 54) for moving the drive wheel (51) vertically between a raised, first position and a lowered, second position, wherein the drive wheel occupies the first position when the crane is driven in the storage corridors and to and from the transfer carriage, and occupies the second position when driving the transfer carriage forwards. <IMAGE> |
