Patent ID: 8752793

Claim:
A door assembly ( 1 ), in particular for a helicopter, having a door opening ( 3 ) and comprising: a post ( 6 ); a door ( 8 ) fitted to said post by a first and second hinge ( 28 , 27 ) to rotate about a hinge axis ( 9 ) to open and close said door opening ( 3 ); said first and second hinge ( 28 , 27 ) being located on an outer wall ( 31 ) of said post ( 6 ); said first hinge ( 28 ) comprising a fastening body ( 39 ) resting in a fixed position on said outer wall ( 31 ); and an emergency release device ( 50 ) comprising a release handle ( 51 ); the door assembly ( 1 ) being characterized in that the emergency release device ( 50 ) further comprises a first stem ( 44 ), which extends through said post ( 6 ) along a release axis ( 45 ) substantially perpendicular to said hinge axis ( 9 ), rotates axially, in response to operation of said release handle ( 51 ), from a first to a second angular position to detach said door ( 8 ) from said post ( 6 ), is connected, at one axial end ( 43 ) and by a releasable connecting device ( 49 ), to said fastening body ( 39 ) of said first hinge ( 28 ) in the first angular position, and is disconnected from said fastening body ( 39 ) in the second angular position; in that said release handle ( 51 ) is connected to said first stem ( 44 ) to rotate together with said first stem ( 44 ) about said release axis ( 45 ); and in that said second hinge ( 27 ) comprises: a hinge seat ( 35 ) fixed to one ( 6 ) of said post and said door; and a hinge pin ( 36 ) which is fixed to the other ( 8 ) of said post and said door, projects from a connecting arm ( 37 ) along said hinge axis ( 9 ) to engage said hinge seat ( 35 ), and faces in such a direction as to allow said door ( 8 ) to drop freely off said post ( 6 ).