# US 2010/0163685 A1 · Wing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0163685 A1 - Document ID: US20100163685A1 - Status: Published application - Kind: A1 - Application number: 12/449,886 - Filed: 2008-03-07 - Published: 2010-07-01 - Earliest claimed: 2007-03-09 - Assignees: Asco Industries - Inventors: Alexandre Vormezeele; Christophe Cnop; Dietmar Bloemen; Eoin O'beirne - Web page: https://patentgrep.com/patent/US20100163685A1 ## CPC - B64C 9/22: at the front of the wing - Y02T 50/30: Wing lift efficiency - Y02T 50/40: Weight reduction - B64C: AEROPLANES; HELICOPTERS - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A wing, comprising a structure, an outer skin, and a leading edge device comprising a moveable body with a leading and a trailing edge and a support and actuation mechanism for attaching said moveable body to a structure of a wing and guiding a substantially circular motion of said moveable body, around a hinge line, between a retracted position and at least one deployed position. Said leading edge device further comprises at least one guiding device comprising a track and a follower with a roller. The track follows a substantially circular arc substantially centered on the hinge line. The roller is arranged to be guided by the track and hold down said moveable aerodynamic surface so as to substantially restrict lift-off of its trailing edge from the outer skin of the wing. ## Claims ### Claim 1 A wing comprising a structure, an outer skin and a leading edge device, wherein said leading edge device comprises: a moveable body with a leading and a trailing edge and a support and actuation mechanism, comprising a plurality of arms with a first extremity, a second extremity, and a hinge near said first extremity for pivotally attaching the arm to said wing structure, and attached to said moveable body near said second extremity, wherein the hinges of said plurality of arms are substantially aligned along a hinge line, for attaching said moveable body to said wing structure and driving a substantially circular motion of said moveable body, around said hinge line, between a retracted position and at least one deployed position, said wing being characterised in that: said leading edge device further comprises at least one guiding device, separate from said support and actuation mechanism, and comprising a track and a follower, such as a roller, for cooperating with said track, wherein one of the track and the follower is fixed to said wing structure, whereas the other one of the track and the follower is fixed to said moveable body, and the follower is arranged to be guided by the track along a substantially circular arc substantially centred on said hinge line and hold down said moveable body so as to substantially restrict lift-off of its trailing edge from said outer skin of the wing in at least on positions. ### Claim 2 (depends on 1) A wing according to claim 1, wherein said other one of the track and the follower of the guiding device is fixed to said moveable body closer to it trailing edge than to its leading edge. ### Claim 3 (depends on 1) A wing according to claim 1, wherein at least one of said plurality of arms is integrally formed with at least part of said moveable body, such as a rib. ### Claim 4 (depends on 1) A wing according to claim 1, wherein at least one of said plurality of arms is linked to said moveable body with a single point attachment comprising a single attachment point, preferably with a spherical bearing. ### Claim 5 (depends on 1) A wing according to claim 1, wherein at least one of said plurality of arms is linked to said moveable body with an attachment comprising two eccentrically adjustable pins. ### Claim 6 (depends on 1) A wing according to claim 1, wherein at least one of said plurality of arms is linked to said moveable body with a three-point attachment comprising a linkage, a first attachment point between said arm and said linkage, a second attachment point between said linkage and said moveable body and a third attachment point between said arm and said moveable body. ### Claim 7 (depends on 1) A wing according to claim 1, wherein said follower of the guiding device is fixed to said moveable body and said track of the guiding device is fixed to said wing structure. ### Claim 8 (depends on 7) A wing according to claim 7, wherein said track of the guiding device is fixed to said wing structure under said outer skin and said follower of the guiding device traverses said outer skin through a cut-out in said outer skin, preferably sealed, for example with a spring loaded door seal or a sliding curtain seal. ### Claim 9 (depends on 1) A wing according to claim 1, wherein said follower comprises a roller, mounted on an eccentric bushing, so as to be able to adjust the position of a rotation axis of said roller in order to compensate for play in the guiding device. ### Claim 10 (depends on 1) A wing according to claim 1, wherein said follower comprises a roller with a rotation axis pivotable around at least one perpendicular axis in order to compensate for angular misalignments in the guiding device. ### Claim 11 A wing comprising a structure, an outer skin and a leading edge device, wherein said wing leading edge device comprises: a moveable body with a leading and a trailing edge, a support and actuation mechanism comprising a plurality of support tracks in substantially parallel planes, each support track being substantially rigidly attached to said moveable body to support and guide said moveable body in a motion between a retracted position and at least one deployed position with respect to said wing structure, and at least one guiding device comprising a track and a follower, such as a roller, for cooperating with said track wherein one of the track and the follower is fixed to said wing structure, whereas the other one of the track and the roller is fixed to said moveable body, and the roller is arranged to be guided by the track in a plane substantially parallel to the planes of the support tracks, said wing being characterized in that said guiding device is located substantially offset between the planes of the support tracks. ### Claim 12 (depends on 11) A wing according to claim 11 wherein said follower of the guiding device is fixed to said moveable body and said track of the guiding device is fixed to said wing structure. ### Claim 13 (depends on 11) A wing according to claim 11, wherein said follower of the guiding device is fixed to said wing structure and said track of the guiding device is fixed to said movable body. ### Claim 14 (depends on 2) A wing according to claim 2, wherein at least one of said plurality of arms is integrally formed with at least part of said moveable body, such as a rib. ### Claim 15 (depends on 2) A wing according to claim 2, wherein at least one of said plurality of arms is linked to said moveable body with a single point attachment comprising a single attachment point, preferably with a spherical bearing. ### Claim 16 (depends on 3) A wing according to claim 3, wherein at least one of said plurality of arms is linked to said moveable body with a single point attachment comprising a single attachment point, preferably with a spherical bearing. ### Claim 17 (depends on 2) A wing according to claim 2, wherein at least one of said plurality of arms is linked to said moveable body with an attachment comprising two eccentrically adjustable pins. ### Claim 18 (depends on 3) A wing according to claim 3, wherein at least one of said plurality of arms is linked to said moveable body with an attachment comprising two eccentrically adjustable pins. ### Claim 19 (depends on 4) A wing according to claim 4, wherein at least one of said plurality of arms is linked to said moveable body with an attachment comprising two eccentrically adjustable pins ### Claim 20 (depends on 2) A wing according to claim 2, wherein at least one of said plurality of arms is linked to said moveable body with a three-point attachment comprising a linkage, a first attachment point between said arm and said linkage, a second attachment point between said linkage and said moveable body and a third attachment point between said arm and said moveable body.