UNMANNED CARRIER AND UNMANNED CARRIER SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an unmanned carrier which enables improvement of accuracy of a stop position after conveyance without increasing in size of the unmanned carrier even if a dolly and a loaded workpiece are heavy objects.;SOLUTION: An unmanned carrier 4 conveys a dolly 3, which has a frame 31 on which a workpiece 2 can be loaded and can be moved on a floor surface 6 through casters 30 by application of external force, while supporting the dolly 3 in a lower direction D than the frame 31 when viewed in a vertical direction and includes: multiple wheels, driving wheels 40 and steering wheels 41, which is brought into contact with the floor surface 6; a driving source 43 which drives at least the driving wheels 40; a connection part 45 which connects a vehicle body 42 to the dolly 3; and a biasing part 46 which is provided at the vehicle body 42, is brought into contact with the dolly 3 to support a part of a total weight of the dolly 3 and the loaded workpiece 2 when the vehicle body 42 and the dolly 3 are connected by the connection part 45, and biases the vehicle body 42 and the dolly 3 in a direction such that the vehicle body 42 and the dolly 3 are separated in an up-down direction U, D when viewed in the vertical direction.;SELECTED DRAWING: Figure 4;COPYRIGHT: (C)2019,JPO&INPIT