Automatic transport vehicle with three-axis motion sensing and vibration damping

An automatic transport vehicle capable of damping vibration of a load carried thereon, the vehicle comprising:

• a truck which is freely movable on road surface or track;
• a bed supported elastically on the truck;
• sensors which detect vibrations in the bed and which output detection signals;
• at least a first actuator which displaces the bed relative to the truck in a first direction through which a first sensor detects the vibration,
• a second actuator which displaces the bed relative to the truck in a second direction through which a second sensor detects the vibration,
• a third actuator which displaces the bed relative to the truck in a third direction through which a third sensor detects the vibration, and
• a controller which controls the actuators in response to detection signals from the sensors,
• wherein the directions of action of the actuators are inclined with respect to the perpendicular to a plane in which the truck moves, the directions of action of the actuators facing in mutually different directions, the sensors detecting vibrations in the direction of action of each of the actuators.