Fuselage structure for combined fixing of insulation blankets and items of equipment, aircraft incorporating such a structure
An installation of systems in aircraft fuselages such as thermophonic insulation mattresses and devices such as onboard systems, and bundles of electric wires or fluid ducts (air, water, oxygen, hydraulic fluid). A structure for fastening onto an aircraft fuselage includes at least frames and stringers, the structure further including: fuselage stabilizers connecting the frames and stringers, wherein two stabilizers of two consecutive frames face each other between the two consecutive frames; and a strip board connecting the two stabilizers and including a fastening mechanism arranged so as to receive corresponding fastening mechanisms of the insulation mattresses and the devices.
1. A structure for combined fastening of insulation mattresses and equipment items on a fuselage of an aircraft, the structure comprising:
stringers, including a first stringer;
a first stabilizer on a first frame that connects the first frame to the first stringer; and
a second stabilizer on a second frame that connects the second frame to the first stringer,
wherein the first stabilizer faces the second stabilizer on the first stringer between the first frame and the second frame, and
wherein a strip board connects the first and second stabilizers and includes fastening means arranged to accommodate corresponding means for fastening the insulation mattresses and equipment items.
2. A fastening structure according to claim 1 , wherein the fastening means of the strip board comprises a plurality of preformed borings arranged to accommodate the corresponding fastening means and disposed in a part of the strip board between the first and second stabilizers.
3. A fastening structure according to claim 1 , comprising a plurality of strip boards connecting a respective plurality of pairs of first and second stabilizers facing each other and disposed staggered in the fuselage.
4. A fastening structure according to claim 1 , wherein the strip board, the stabilizers, and the frame comprise a metalized face and a nonmetalized face, the strip board and a stabilizer being fastened by their metalized faces, each stabilizer and the corresponding frame being fastened at their nonmetalized faces by traversing fastening means ensuring an electric conduction between their opposite metalized faces.
5. An aircraft comprising a fastening structure according to claim 1 .
6. A fastening structure according to claim 1 , wherein frames and stringers are perpendicular to each other.
7. A fastening structure according to claim 1 , wherein each stabilizer comprises a first end connected to a stringer, a second end connected to a frame, and a portion between the first end and the second end which connects to the strip board.
8. A fastening structure according to claim 1 , wherein at least a part of the strip board constitutes a part of one of the first and second stabilizers.
9. A fastening structure according to claim 8 , wherein the first and second stabilizers each comprise a portion extending in a form of a part of the strip board and are fastened to one another by respective free ends of the two parts of the strip board.
10. A fastening structure according to claim 1 , wherein the strip board comprises a flat core and an upper edge perpendicular to a main core so as to form a support surface for the equipment items to be fastened.
11. A fastening structure according to claim 10 , wherein the fastening means of the strip board comprises a plurality of borings provided in the core and at least one fastening element, the fastening element having a bottom part including a pin configured to engage in one of the borings, an intermediate part locally in a shape of an inverted U shape and of a size more or less equal to the upper edge so as to come to bear on top, and an upper part comprising a holding or support means for the equipment items.
12. A fastening structure according to claim 10 , wherein the strip board comprises L shaped lugs extending underneath the core and alternately positioned on both sides of the core, each lug comprising, in an extension of the L shape, at least one fastening means configured to accommodate an insulation mattress.