An autonomous mobile robot (AMR) system with a wheeled cart and an AMR for docking with the wheeled cart ; the wheeled cart being provided with a coupling structure comprising: - a frame hitch ; - at least two elongated gripping elements , which are disposed equidistant from a centre of the frame hitch ; and the AMR comprising: - a robot body comprising at least one optical unit, a drive means for moving the robot body and a mobile drive unit configured for automated navigation of said robot body ; - a cart coupling system comprising at least two robot arms extending from said robot body , each robot arm being provided with at least one gripper hand configured for gripping of at least one gripping element ; wherein each gripper hand comprises at least two pivotable gripper members , which are arranged to pivot between an open and a closed position of said gripper hand , characterised in that each gripper hand comprises a gripper biasing member for biasing said gripper members towards the open position of said gripper hand , a moveably arranged latch , which is arranged to lock said gripper members in the closed position of said gripper hand , and a latch biasing member for biasing said latch towards said gripper members . the wheeled cart being provided with a coupling structure comprising: - a frame hitch ; - at least two elongated gripping elements , which are disposed equidistant from a centre of the frame hitch ; and - a frame hitch ; - at least two elongated gripping elements , which are disposed equidistant from a centre of the frame hitch ; and the AMR comprising: - a robot body comprising at least one optical unit, a drive means for moving the robot body and a mobile drive unit configured for automated navigation of said robot body ; - a cart coupling system comprising at least two robot arms extending from said robot body , each robot arm being provided with at least one gripper hand configured for gripping of at least one gripping element ; wherein each gripper hand comprises at least two pivotable gripper members , which are arranged to pivot between an open and a closed position of said gripper hand , characterised in that each gripper hand comprises a gripper biasing member for biasing said gripper members towards the open position of said gripper hand , a moveably arranged latch , which is arranged to lock said gripper members in the closed position of said gripper hand , and a latch biasing member for biasing said latch towards said gripper members . - a robot body comprising at least one optical unit, a drive means for moving the robot body and a mobile drive unit configured for automated navigation of said robot body ; - a cart coupling system comprising at least two robot arms extending from said robot body , each robot arm being provided with at least one gripper hand configured for gripping of at least one gripping element ; wherein each gripper hand comprises at least two pivotable gripper members , which are arranged to pivot between an open and a closed position of said gripper hand , characterised in that each gripper hand comprises a gripper biasing member for biasing said gripper members towards the open position of said gripper hand , a moveably arranged latch , which is arranged to lock said gripper members in the closed position of said gripper hand , and a latch biasing member for biasing said latch towards said gripper members . wherein each gripper hand comprises at least two pivotable gripper members , which are arranged to pivot between an open and a closed position of said gripper hand , characterised in that each gripper hand comprises a gripper biasing member for biasing said gripper members towards the open position of said gripper hand , a moveably arranged latch , which is arranged to lock said gripper members in the closed position of said gripper hand , and a latch biasing member for biasing said latch towards said gripper members . <EOS>