Aeronautics and astronautics – Landing gear – Retractable
Patent
1993-03-26
1994-08-16
Huppert, Michael S.
Aeronautics and astronautics
Landing gear
Retractable
244104FP, 244 1717, B64C 2514, B64C 2558
Patent
active
053379764
ABSTRACT:
The invention relates to raisable landing gear including a shock absorbing leg that is pivotally mounted, and to a driving actuator associated therewith. According to the invention, the leg is implemented in the form of two elements that are hinged to each other about an axis parallel to the pivot axis of the leg and that are connected together by means of a shock absorber, the bottom element forming a rocker and the top element forming a panel whose free end is connected to a drive actuator which is a shock-absorbing actuator having a force threshold, said shock-absorbing actuator serving to apply a predetermined torque that maintains the leg in position during normal landing, while allowing said leg to be raised against a controlled force in the event of a crash landing.
REFERENCES:
patent: 2554881 (1951-05-01), Levy
patent: 3346218 (1967-10-01), Lucien
patent: 4147316 (1979-04-01), Kendall et al.
patent: 4284255 (1981-08-01), Masclet et al.
patent: 4312485 (1982-01-01), Masclet et al.
patent: 4537374 (1985-08-01), Barnoin
patent: 5029775 (1991-07-01), Abramovitsh
patent: 5184465 (1993-02-01), Howard et al.
Ansley Virna Lissi
Huppert Michael S.
Messier-Bugatti
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