A conveyor device includes: a first conveyor unit including a first supporting-and-conveying unit configured to convey the object; a turning unit configured to turn the first conveyor unit to change a traveling direction of the object; and a second conveyor unit including a pair of second supporting-and-conveying units provided adjacently to the first conveyor unit and configured to convey the object. The pair of the second supporting-and-conveying units and a driving-force transmitting unit configured to transmit driving force to the pair of the second supporting-and-conveying units are provided outside turning areas of the first conveyor unit in plan view. The first conveyor unit and the second conveyor unit are disposed so that a conveying area of the object in the second conveyor unit and the turning areas of the first conveyor unit overlap each other in plan view.