INSULATING MAT FOR SOUND INSULATION OF AIRPLANE FUSELAGE STRUCTURE AND FASTENING ELEMENT FOR IT Russian patent published in 2011 - IPC B64C1/40 B60R13/08 

FIELD: construction.

SUBSTANCE: insulating mat for sound insulation of airplane fuselage structure, which comprises elements of frame and stringers that pass perpendicularly to the frame elements. The insulating mat comprises multiple fastening brackets, which are fixed on the first surface of the insulating mat and protrude in side direction beyond the edge of the insulating mat. The fastening brackets are designed to fix edge sections of the mat on the airplane fuselage structure. The insulating mat comprises a layer with holes, which coats the second surface of the insulating mat opposite the first one in the zone around its points of fixation, and this layer absorbs stress that fastening brackets produce to the mat. The fastening facility for fixation of the insulating mat comprises a rod, at the first end of which there is a fastening element made in the form of a clamp, for fixation of the rod to the airplane fuselage structure so that the rod protrudes from the airplane fuselage structure in order to penetrate through the insulating mat. In the area of the second end of the rod, which is installed opposite to the first end, there is a stop provided, which limits the movement of the adjacency element for fix the insulating mat on the rod in direction of the first end.

EFFECT: improved sound insulation of the airplane fuselage structure.

11 cl, 7 dwg