PACKING FACILITY OF SELF-CLOSING COVERS OF AIRCRAFT HATCHES Russian patent published in 2010 - IPC B64C1/14 

FIELD: machine building.

SUBSTANCE: invention refers to packing facilities for sealing automatically closing covers of aircraft hatches. The facility consists of a rubber packing element installed on cover 5 of the hatch. The packing element is made as thin ring 1 secured on cover 5 of the hatch with its cantilever-arranged internal part, while its external part designed to contact packed surface 22 of fringe 15 of the aircraft case is free. The internal part of the ring is clamped along whole perimetre of hatch cover 5 to ensure said cantilever attachment and simultaneously to give a conic shape to the packing element. Hold downs 3 and 4 have congruous conic surfaces contacting surfaces of ring 1 with their tops turned to the side of sealed volume. Hold down 4 is attached by glue to contact surface of the internal part of ring 1. Cover 5 of the hatch and fringe 15 of the aircraft case can be made with slit 21 between them and with pocket 2 along whole perimetre of the external part of the packing element; also pocket 2 communicates with environment through this slit.

EFFECT: invention facilitates pressure tightness of split joint of hatch covers operating under extreme sub and above zero temperatures avoiding application of heavy efforts for closing.

3 cl, 4 dwg