Transport system for the transportation of loads, consisting of a driverless transport vehicle in conjunction with a carriage which is movable on casters, the transport system having the following features: a vehicle housing having a central lifting pin, a left lifting pin, and a right lifting pin for receiving and transporting load on a carriage provided with four casters by means of a docking cross beam which is integrated in the carriage, having two drive wheels which, each on a dedicated mounted rotation axle, are separately driven on either side of the center of the vehicle housing by one drive each, and support wheels which are provided in each case in pairs on the front side and on the rear side of the vehicle housing, wherein a rotary encoder is provided on each drive wheel, and wherein at least one laser scanner is installed in the external region of the vehicle housing, wherein a system for supplying energy to the transport vehicle by means of an induction current pick-up by way of inductive lines which are installed in the floor is provided, and an emergency-stop system is provided which has emergency off-switches on the transport vehicle, and emergency off-switches on the carriage, the locking of a pressure-loaded brake shoe on each caster of the carriage being simultaneously released upon actuation of one of the emergency off-switches (8, 9), characterized in that a pressure spring is connected to the central lifting pin at one end and to a lifting spindel at the other end, and the lifting spindle has a pressure plate which is in contact with the left and right lifting pin and a drive motor drives the lifting spindle which by means of the pressure spring presses the central lifting pin into a central opening of the docking cross beam, and by means of the pressure plate presses the left lifting pin and the right lifting pin into corresponding further openings of the docking cross beam. a vehicle housing having a central lifting pin, a left lifting pin, and a right lifting pin for receiving and transporting load on a carriage provided with four casters by means of a docking cross beam which is integrated in the carriage, having two drive wheels which, each on a dedicated mounted rotation axle, are separately driven on either side of the center of the vehicle housing by one drive each, and support wheels which are provided in each case in pairs on the front side and on the rear side of the vehicle housing, wherein a rotary encoder is provided on each drive wheel, and wherein at least one laser scanner is installed in the external region of the vehicle housing, wherein a system for supplying energy to the transport vehicle by means of an induction current pick-up by way of inductive lines which are installed in the floor is provided, and an emergency-stop system is provided which has emergency off-switches on the transport vehicle, and emergency off-switches on the carriage, the locking of a pressure-loaded brake shoe on each caster of the carriage being simultaneously released upon actuation of one of the emergency off-switches (8, 9), characterized in that a pressure spring is connected to the central lifting pin at one end and to a lifting spindel at the other end, and the lifting spindle has a pressure plate which is in contact with the left and right lifting pin and a drive motor drives the lifting spindle which by means of the pressure spring presses the central lifting pin into a central opening of the docking cross beam, and by means of the pressure plate presses the left lifting pin and the right lifting pin into corresponding further openings of the docking cross beam.