Mechanism for supporting and extending a high lift device for ai

Details Mechanism for supporting and extending a high lift device for ai Mechanism for supporting and extending a high lift device for ai

1988-05-13

1989-06-13

Basinger, Sherman D.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244213, B64C 350

Patent

active

048385034

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).

REFERENCES:
patent: 1917428 (1933-07-01), Burnelli
patent: 4471928 (1984-09-01), Cole

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