JOINT BETWEEN AIRCRAFT FUSELAGE COMPARTMENTS AND ITS SEALED FRAME Russian patent published in 2013 - IPC B64C1/10 

FIELD: transport.

SUBSTANCE: invention relates to aircraft engineering, particularly, to joint between tight and leaky compartments. Said joint comprises skins of compartments supported by stringers and sealed frame arranged at said joint. Sealed frame comprises spherical shell with meridian-orientation bearing elements, inner sand outer belts, wall connecting sealed frame belts, and alternate belt. Sealed frame wall is furnished with flange arranged around sealed frame wall. Surface of said sealed frame wall facing the sealed compartment is composed of spherical belt surface. Spherical shell rests on wall flange. Outer belt is composed of flange and wall. Alternate belt is shaped to ring with flexed cross-section. Ends of meridian-orientation bearing elements are integrated into single assembly with spherical shell, alternate belt and sealed frame wall. Joint assembly is furnished with fittings and joint belt arranged on opposite sides of sealed frame.

EFFECT: longer service life, decreased weight, simple assembly.

5 cl, 10 dwg