Patent ID: 8267351
Filing Date: 2012-09-18
Classification: B64C

Abstract:
1. An aircraft landing gear roller slot mechanical linkage coupling the aircraft landing gear to a landing gear bay door for opening and closing the landing gear bay door, the mechanical linkage comprising: a drive rod pivotably coupled at one end to the aircraft landing gear; an input crank pivotably coupled at a first end to the drive rod, at the opposite end of the drive rod from the landing gear, the input crank including a connecting means located at a second end; an output crank comprising a slot defined at one end thereof, the slot being configured to receive the connecting means therein, the connecting means configured to move along a length of the slot upon pivotal movement of the input crank to cause the output crank to rotate; and a door rod pivotably coupled to the output crank at the opposite end of the output crank to the slot, the door rod further coupled to the landing gear bay door, wherein initial extension of the aircraft landing gear causes the mechanical linkage to move the landing gear bay door to an open position, extension of the aircraft landing gear past the landing gear bay door allows the mechanical linkage to maintain the landing gear bay door in the open position to allow the aircraft landing gear to pass, and approaching full extension of the aircraft landing gear causes the mechanical linkage to move the landing gear bay door to a closed position.