Latch device of cockpit door of an aircraft

Details Latch device of cockpit door of an aircraft Latch device of cockpit door of an aircraft

2011-03-01

2011-03-01

Dinh, Tien (Department: 3644)

Aeronautics and astronautics

Aircraft structure

Details

Reexamination Certificate

active

07896290

ABSTRACT:
A latch device for detecting pressure reduction of a cockpit in an aircraft and releasing a bolt and a stopper device are provided so as to prevent a cockpit door from unexpectedly opening by an impact. A main latch device100of the cockpit door has a frame112fixed to a door panel, and a latch base120is mounted to the frame112capable of pivotal rotation with a pin122as a fulcrum. A bolt132is inserted into a catch in conjunction with a door handle130. A holding/releasing portion150holds the latch base120. When a pressure difference occurs between a cockpit4and a cabin5, a pressure-sensing piston160is pushed in, a trigger170and a flapper180are rotated and the latch base120is released. A stopper device190regulates movement of the trigger170by movement of an inertial piston192when an impact force is applied from the cabin5side.

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patent: 6669144 (2003-12-01), Artsiely
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patent: 07-305551 (1995-11-01), None
patent: 2003-261098 (2003-09-01), None
patent: 2005-104428 (2005-04-01), None
Japanese Office Action dated Sep. 9, 2008, issued in corresponding Japanese Patent Application No. 2006-306207.

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