DEVICE FOR FIXATION IN FOLDED POSITION OF AIRCRAFT WING BRACKETS Russian patent published in 2019 - IPC B64C3/56 

FIELD: aviation.

SUBSTANCE: invention relates to devices for fixing aerodynamic surfaces in a folded position and is intended for aerodynamic surfaces equipped with pneumatic unfolding means. Fixation device comprises bracket fixed on aircraft body; rigidly fixed on bracket pneumatic cylinder with piston, having possibility of linear movement; clamping element of cantilever fixed on the pneumatic cylinder piston and in the state of fixation contacting with slots made on the wing cantilevers; a compression spring installed in the cavity of the pneumatic cylinder and acting on the piston along the axis of the pneumatic cylinder in the direction opposite to the working stroke of the piston. Working stroke of the piston from the extreme position corresponding to the state of fixation is directed along the axis of the pneumatic cylinder to the side from the wing brackets. Pneumatic cylinder cavity has inlet and outlet holes, and outlet hole is located in direction of working stroke of piston at such distance from inlet hole that its projection on axis of pneumatic cylinder exceeds depth of slots in wing brackets. Inlet hole is connected to the aircraft pneumatic system by means of the first line, the outlet hole is connected to the device for unfolding the aerodynamic surface supports by means of the second main line.

EFFECT: higher reliability of fixation of aircraft wing brackets in folded position at provision of safety of unfolding of consoles at removal of fixation.

1 cl, 2 dwg