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Aircraft door hinge mechanism

  • US 5,289,615 A
  • Filed: 11/08/1991
  • Issued: 03/01/1994
  • Est. Priority Date: 11/08/1991
  • Status: Expired due to Term
First Claim
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1. A translating motion hinge assembly for connecting an aircraft door to a fuselage wherein, the door is adapted to be seated in a closed position in a door opening formed in the fuselage, the hinge assembly comprising:

  • a hinge fitting having first and second opposed ends, said hinge fitting first end being pivotally attached to the aircraft fuselage adjacent the door opening and said hinge fitting being positioned so that when said door is in the closed position, said hinge fitting is spaced from the door opening;

    a universal shaft rotatably attached to said hinge fitting second end, said universal shaft including at least one linkage element for connecting the door to said universal shaft so that the aircraft door pivots around said second end of said hinge fitting in unison with the rotation of said shaft;

    a first fixed sprocket attached to the aircraft fuselage adjacent the location said hinge fitting is attached to the fuselage and a second sprocket mounted for rotation to said universal shaft, anda drive belt assembly including an open-ended rubber belt, said rubber belt having a pair of opposed ends, and an adjustable tensioner for connecting said ends of said drive belt wherein, said rubber belt is coupled to said sprockets so that when said hinge fitting is moved from the door closed position to a door open position, said drive belt causes said universal shaft to rotate so as to maintain the door in a substantially parallel orientation relative to the fuselage opening.

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