MECHANISM FOR DOOR CONTROL FROM TWO POSTS Russian patent published in 2004 - IPC

FIELD: flight vehicles, fuselages.

SUBSTANCE: the door control mechanism has two control posts and two lines connected to the door control cylinder. The door control mechanism has also a pneumatic distributor with three chambers in its body. The first of them is connected to the high-pressure regulator and has connections closed by valves to the two other chambers, each of them is connected to the line and has a hollow spring-loaded rod with two holes, one of which is located inside with the control posts, a deflection of any of them results in closing of the second hole of the rod and opening of the mentioned valve by the rod. The bell-cranks and two platforms are so installed that a deflection of any bell-crank results in a deflection of one of the platforms and displacement of the rod. For fixation of the bell-cranks in the extreme position provision is made for a spring-loaded lever, whose termination and one of the edges of each bell-crank are made for their engagement. For control of the flight vehicle canopy provision is made for a cylinder connected to the canopy sealing tube and acting on the lever.

EFFECT: provided opening and closing of the door from two posts without interlocking of any post and without use of electric-fed elements.

4 cl, 1 dwg