An autonomous mobile robot 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.