Hinge mechanism for an aircraft door

Details Hinge mechanism for an aircraft door Hinge mechanism for an aircraft door

1983-10-12

1986-08-26

Blix, Trygve M.

Aeronautics and astronautics

Aircraft structure

Details

B64C 114

Patent

active

046078126

ABSTRACT:
Aircraft door of the type which during the flight is pressed all around against the door case under influence of the cabin pressure. During opening and closing the door moves by means of a hinge mechanism with two mutually parallel rotational axes and an intermediate hinge part, one of the rotational axis being connected to the door and the other being connected to the door case. When the door is opened during a first motion phase the intermediate hinge part carries out a rotational movement around the rotational axis connected to the door case whereby simultaneously the angle between the door and the intermediate hinge part is decreased, and thereafter in a second motion phase the intermediate hinge part carries out a rotational movement in the opposite direction around the rotational axis connected to the door case. When the door is closed these movements are carried out with reversed rotational directions and in reverse order. A hydraulic or mechanical transmission mechanism is present in the hinge construction coupled with the two rotational axes for coordinating the rotation around both rotational axes in the first motion phase.

REFERENCES:
patent: 2751636 (1956-06-01), Heinemann et al.
patent: 3085297 (1963-04-01), Linderfelt

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