Mechanism for supporting and extending a high lift device for aircraft wings
US4838503A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 1988 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | May 13, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C9/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A mechanism for supporting and extending a high lift device relative to an aerofoil, comprises one or more support beams (10) connected to the aerofoil, a pair of spaced apart chordwise extending wing ribs (20) bounding the support beam, a set of cylindrical rollers (23) mounted between the wing ribs for supporting the support beam (10) with their rotational axes aligned transversely with respect to the support beam (10), the support beam (10) including a gear rack (12) with gear teeth facing downwardly and a pinion gear (13) lying in meshing engagement with the gear rack (12), and an actuator (14) in driving engagement with the pinion gear (13) to extend and retract the high lift device (2-6) relative to the aerofoil (1). Bearings (45, 47) are provided for rotatably supporting the pinion gear (13) between the wing ribs (20) about a generally transverse axis of rotation, and there are splined engaging means (42, 43) between the actuator (14) and the pinion gear (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.