RAMP-DOOR Russian patent published in 2002 - IPC

FIELD: aeronautical engineering. SUBSTANCE: ramp-door has panel securing the doorway of compartment which is provided with steps and guides secured on wall of compartment. Panel is mounted in said guides for motion along them; steps are located on outer side of panel; steps may be made immovable or foldable. Steps may be secured by their inner side on panel for turn relative to attachment points; their outer corners are connected by member synchronizing turn of steps which is simultaneously used as handhold. Hinged elongating section may be secured to lower part of said panel. Said hinged elongating section may be articulated with rod whose one end is articulated with said member synchronizing turn of steps. Ramp-door may be provided with lock control system which may include remote control handle located in compartment and connected with pneumatic control cylinder of said lock; it may also include remote control handle located on the outside of flying vehicle and connected with pneumatic control cylinder of said lock. EFFECT: ease in use. 9 cl, 4 dwg