COLLAPSIBLE AERODYNAMIC MEMBER Russian patent published in 2003 - IPC

FIELD: guided missiles. SUBSTANCE: collapsible aerodynamic member of guided missile has blades and cylindrical springs. Each blade is put on axle perpendicular to axial line of missile. Each blade is installed in groove of rotary support coming in the form of journal anchored in bearing and coupled via intermediate axle to another support. Springs are mounted on both sides of support on bearing pins perpendicular to axis of blade collapse. Axial lines of springs are located between axis of blade collapse and axial line of missile when blade is collapsed. They can cross axis of blade collapse while the latter opens. One bearing pin is fixed steadily in support and another bearing pin is mounted in groove of blade radially with respect to axis of collapse. Surface of support touching this pin comes in the form of cam with shelf coinciding with groove of blade when it is open. Blades are fitted with pusher equipped with pulse powder drive. Groove in blade or face of shelf of support nearest to cam are produced with break of 6 to 20 degrees to secure backlash-free fixing of open blade. EFFECT: raised operational capabilities and reliability of collapsible aerodynamic member of guided missile. 2 cl, 5 dwg