Patent ID: 11325693

Abstract:
An actuation unit (15) for actuating a foldable wing tip portion (9) includes a first housing part (19) including a first attachment device (23) configured for attachment to a fixed wing (5), and a second housing part (21) including a second attachment device (25) configured for attachment to a foldable wing tip portion (9). The second housing part (21) is rotatable about a main axis of rotation (35). The second housing part (21) includes a toothed rack (37) having a concave shape and facing the main axis of rotation (35). A drive pinion (39) is supported at the first housing part (19) and engaging the toothed rack (37) for driving the second housing part (21) rotatingly relative to the first housing part (19). The drive pinion (39) is driven by a coupling arrangement (43) that is configured to be coupled to an output (45) of a motor unit (47).