AIRCRAFT LANDING GEAR FRONT CONTROL MODES SWITCH (VERSIONS), SWITCH ASSEMBLY AND SWITCH POWER FRAME Russian patent published in 2019 - IPC B64C25/50 

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engineering, particularly, to taxiing device front support systems for aircraft landing gear during ground motion of aircraft. Aircraft landing gear front support mode selector comprises power frame with control system elements mounted therein to form three control circuits. Each chain includes a pair of elements, which is adjustable separated by a movable screened shutter. Switch is configured to interact with an element of an external control device of a cam type rigidly fixed on the steering column. Cam has the shape of arc sector with two contact surfaces equipped with each mating centring grooves. Switch is equipped with two response rockers with parallel shafts, on which three levers of the third kind are installed. On shaft of each rocker there is a roller made with possibility of limited turns of its axis in plane of symmetry of steering column. Rollers are movably coupled with one of cam surface arc surfaces for automatic reading from cam commands for maintenance and / or switching of control modes. Mating levers of each rocking arm are connected by tightening springs. Shutter of magnetically opaque screen is installed on cantilever section of each lever.

EFFECT: increased safety during operation.

7 cl, 8 dwg