METHOD AND DEVICE FOR DELIVERING MATERIAL OR THE LIKE AMONG AUTOMATIC CONVEYOR USED ON CONSTRUCTION FIELD

摘要

PROBLEM TO BE SOLVED: To automate a series of carrying and lifting works of materials or the like by each conveyor for saving labor, and to smoothly deliver the materials or the like among the conveyors in the case of such automation. SOLUTION: The materials 12 or the like being carried by an unmanned forklift 15 are placed at delivery places 17, and the materials 12 or the like are taken in by an automated shifter 16 and taken into a crane 13. The materials 12 or the like on the unmanned forklift 15 are placed on the delivery places 17 when the absence of the materials 12 or the like at the delivery places 17 is decided by photosensors 31 detecting the presence of the materials 12 or the like installed at the delivery places 17.