초록 ▼

Actuating mechanisms (39, 40, 44) for an aircraft door (34) mounted along its upper edge to the body (36) of an aircraft (25) for movement into and out of a door opening (35) in the fuselage (29). The hinge actuating mechanisms (39) include a drive unit (46) and linkage assembly (50, 51) secured to

Actuating mechanisms (39, 40, 44) for an aircraft door (34) mounted along its upper edge to the body (36) of an aircraft (25) for movement into and out of a door opening (35) in the fuselage (29). The hinge actuating mechanisms (39) include a drive unit (46) and linkage assembly (50, 51) secured to the body (36) with all actuating components (45, 46, 48-51) mounted on the door (34) and positioned so that all actuating components move outwardly and upwardly to points outboard of an above the opening (35) except for actuating links (51) which pass through the upper corners of opening (35), thus defining an esentially unobstructed clearance area for passage of cargo. The latch cam assembly (40) employs a single actuator (90) for pulling door (34) to a fully closed position and for latching/unlatching a plurality of bottom latches (99, 100) and a pair of mid-span latches (42, 109). The mechanism (40) is sequenced to cause the latches (42, 99) to dwell in their unlatched condition while hooks (92) pull the door (34) into its fully closed position. The actuating mechanism (44) is normally biased open by vent door (83) biasing means (84). Essentially all actuating components are mounted on and carried by the door (34) and may be actuated from the exterior of the aircraft (25) by actuation of a master latch/lock control mechanism (56) on the undersurface of the fuselage (29).

대표청구항 ▼

In combination with an aircraft fuselage structural frame defining an ingress/egress opening extending therethrough, a canopy-type door having a pair of parallel vertical side edges and parallel top and bottom edges, said door being hingedly connected along its top edge to said frame for opening and

In combination with an aircraft fuselage structural frame defining an ingress/egress opening extending therethrough, a canopy-type door having a pair of parallel vertical side edges and parallel top and bottom edges, said door being hingedly connected along its top edge to said frame for opening and closing said ingress/egress opening, hinge actuating means for shifting said door between a first fully open position and a second substantially closed position wherein said door is slightly ajar, and locking means for selectively locking said door in a fully closed position, an improved power driven latch cam mechanism for shifting said door between a fully closed position and said second substantially closed position and for selectively latching/unlatching said door comprising: (a) latch cam means mounted on said door, said latch cam means being separably engageable with said frame for selectively latching and unlatching said door when said door is in a fully closed position; (b) door pull-in means mounted on said door and separably engageable with said frame for shifting said door between said second position and a fully closed position; (c) a single power driven actuator mounted on said door for sequentially activating said door pull-in means and said latch cam means so as to cause said latch cam means to dwell in the unlatched state when said pull-in means are activated to fully close said door and for thereafter activating said latch cam means to latch said door in a closed position; and, (d) means for activating said power driven actuator and said hinge actuating means in sequential order during opening movement of said door and activating said hinge actuating means and said power driven actuator in sequential order during closing movement of said door.