Wing pivot structure

Details Wing pivot structure Wing pivot structure

1992-04-15

1994-08-16

Peters, Jr., Joseph F.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244 46, 244 39, 244 7R, 416142, B64C 356

Patent

active

053379748

ABSTRACT:
An aircraft wing pivot structure is described which provides a flexible ring attached to the aircraft wing at flexible wing attachment points by spherical bearings. The ring is attached to the fuselage of the aircraft by pins fixed to the fuselage and fittings partially enclosing sliding shoes formed at the bottom edge of the ring to allow rotation of the wing. The wing is locked in the flight position by retractable pins connected to the primary fuselage attachment fittings. The ring is a unitary stainless structure which accepts wing strains induced by flight loads by flexing at the wing attachment points. The use of a flexible ring eliminates truss-like members mounted on spherical bearings used in conventional designs. The elimination of a substantial number of components by the use of a flexible ring substantially reduces the weight of the aircraft and improves the reliability.

REFERENCES:
patent: 2679364 (1954-05-01), Sforza Del Pesaro
patent: 3142459 (1964-07-01), Baetke
patent: 3490720 (1970-01-01), Girard
patent: 3510088 (1970-05-01), Bird
patent: 3559924 (1971-02-01), Jochner
patent: 3971535 (1976-07-01), Jones
patent: 4132374 (1979-01-01), Abell
patent: 4691878 (1987-09-01), Vaughan et al.
patent: 4998689 (1991-03-01), Woodocck

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