Patent ID: 8888048

Claim:
A fastener device provided with attachment means for attaching an external load and with fastener means fastening the attachment means to a load-carrier structure of an aircraft, said fastener means being provided with a support beam and with anchor means anchoring said support beam to a load-carrier structure, wherein said fastener device includes: a first mechanical coupling connecting said support beam to the anchor means so as to enable the support beam to pivot about a first pivot axis (AX 1 ); and coupling means hinged by a second mechanical coupling to the support beam so as to enable the support beam to pivot relative to the coupling means about a second pivot axis (AX 2 ) parallel to the first pivot axis (AX 1 ), a third mechanical coupling hinging the attachment means to the coupling means to enable the attachment means to pivot relative to the coupling means about a third pivot axis (AX 3 ) parallel to the first pivot axis (AX 1 ); with said support beam and the fastener means being aligned in an unfolded position obtained automatically when the attachment means are carrying an external load, said fastener device includes automatic folding means for acting in the absence of a predetermined force exerted by a load on the attachment means to constrain the support beam to pivot relative to a load-carrier structure in a first direction (S 1 ), and constraining the attachment means to pivot relative to the coupling means in a second direction (S 2 ) opposite from the first direction (S 1 ).