System and coupling device for automatically coupling a mobile machine, in particular a container-stacking crane, to a mobile consumer supply system, and a coupling therefor

System A system for automatically docking a mobile machine to a movable supply, the system comprising:

• a docking device with a transverse advancer unit and an extendable extension arm, wherein an end portion of the extension arm is advanceable transversely to the movable supply and the end portion is configured to connect to the movable supply;
• the movable supply comprising an energy guiding chain and an entrainment member connected to the energy guiding chain;
• a coupling piece on the end portion of the extension arm and a coupling counterpart on the entrainment member, the coupling piece and the coupling counterpart connectable to provide a mechanical coupling;
• and
• the entrainment member floatingly supports the coupling counterpart with lateral play transversely to the energy guiding chain.

A docking device for automatically docking a mobile machine to a movable supply, the docking device comprising:

• a transverse advancer unit with an extendable extension arm, wherein an end portion of the extension arm is advanceable transversely to the movable supply;
• a vertical advancer unit by which the end portion of the extension arm is advanceable vertically;
• a coupling piece on the end portion of the extension arm is configured to be connected to a coupling counterpart on an entrainment member of an energy guiding chain, the coupling piece configured to be connected to the coupling counterpart to fix a position of the extension arm and the entrainment member;
• and
• a plug connector on the end portion of the extension arm, the plug connector configured to be connected to a cooperating socket on the entrainment member to supply the mobile machine with energy.