Equipment for folding the blades of a main helicopter rotor

Details Equipment for folding the blades of a main helicopter rotor Equipment for folding the blades of a main helicopter rotor

1979-04-12

1981-05-19

Jillions, John M.

Fluid reaction surfaces (i.e., impellers)

Method of operation

416143, B64C 1128

Patent

active

042682223

ABSTRACT:
The invention relates to equipment which makes it possible to fold the blades of a rotor, in particular of the type comprising a star-shaped hub with arms flexible in the direction perpendicular to the plane of the star-shaped hub.
This equipment comprises a housing which is detachably mounted on the rigid central part of the rotor hub. This housing carries elongate supports at the side. The free end of each support is detachably joined to the upper part of the folding shaft of the corresponding blade. This folding shaft can consist of a spindle replacing a link shaft between the foot of the blade and the corresponding arm of the hub.

REFERENCES:
patent: 2549886 (1951-04-01), Buivid
patent: 3097701 (1963-07-01), Buivid
patent: 3101785 (1963-08-01), Leoni
patent: 3135333 (1964-06-01), Cruz et al.
patent: 3967918 (1976-07-01), Mouille et al.
patent: 4012169 (1977-03-01), Mouille et al.

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