Assembly by mechanical connection including at least one part made of composite material
AssigneeSafran Aircraft Engines
InventorJulien Mateo
Life of this patent
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Abstract
An assembly includes a first part made of composite material and a second part, which parts are held one against the other by at least one fastener system having a fastener element with a head from which there extends a shank. The fastener system further includes a bushing, the bushing including a collar presenting an inside face and an outside face of conical shape. The head of the fastener element bears against the inside face of the collar, while the outside face of the collar bears against a countersink formed in the first part.
Claims6
An assembly comprising a first part made of composite material and a second part, which first and second parts are held one against the other by at least one fastener system comprising a screw having a flat head from which there extends a shank provided with a threaded portion and a nut having tapping co-operating with the threaded portion of the screw, the fastener system also having a bushing, said bushing including a collar presenting an inside face and an outside face of conical shape, the flat head of the screw bearing against the inside face of the collar, while the outside face of the collar bears against a countersink formed in the first part, wherein the collar presents an inside face of conical shape that receives the flat head of the screw, and wherein the outside face of the collar presents a cone angle greater than the cone angle of the inside face of said collar, wherein the fastener system further comprises a flat washer interposed between the facing faces of the first and second parts and wherein the bushing has a drum that extends through said flat washer, and wherein the second part is made of composite material.
Dependencies are inferred from the claim text.