Patent ID: 6945497
Filing Date: 2005-09-20
Classification: B64C,B64D

Abstract:
1. A cockpit door disposed between a passenger cabin and a cockpit of an aircraft, the cockpit door comprising: a door body that opens toward the passenger cabin via a hinge disposed vertically and a latch disposed on a side end portion opposite to the hinge on the door body; four flaps that open toward the cockpit via hinges disposed horizontally with respect to the door body, and a latch for locking the flaps; and a pressure sensitive device for detecting a pressure difference between the cabin and the cockpit, and releasing the latch of the flaps wherein the center folding door is defined by the two flaps having a common hinge between their free ends, and wherein the double door structure is defined by hinges being on opposite sides of the two flaps such that the flaps swing between the hinges; wherein the two flags disposed on an upper portion of the door body have a center-folding door structure, and the two flaps disposed on a lower portion of the door body have a double door structure.