B - Operations – Transporting – 64 – D
Patent
B - Operations, Transporting
64
D
B64D 29/06 (2006.01)
Patent
CA 2731132
The subject of the invention is an aircraft nacelle comprising an air intake (12) followed at the upper part by a part secured to the pylon, known as the visor, and by at least one hatch with a curved profile comprising a stiffening device, characterized in that the stiffening device is positioned at the upstream edge of the said hatch and comprises: a flexible element (38) forming the first curved profile of the said hatch between two distant anchoring points, at least one safety index comprising a latch lock (60) able to pivot about a pivot pin (62) connected to the hatch (16) so as to occupy a position known as the locked position in which the end of the latch lock (60) can rest against the interior surface of an edge upstream of the hatch (16) and another position known as the unlocked position in which the end of the latch lock (60) is offset from the said edge, the said latch lock (60) in locked position preventing scooping phenomena by limiting the movements of the hatch in the radial direction towards the outside of the nacelle and means for tensioning the flexible element (38) between the two anchoring points and causing the said latch lock (60) to pivot into the locked position.
L'objet de l' invention est une nacelle d'aéronef comprenant une entrée d'air (12) suivie en partie supérieure d'une partie solidaire du mât, appelée casquette, et d'au moins une porte avec un profil courbe comportant un dispositif de rigidification, caractérisée en ce que le dispositif de rigidification est disposé au niveau du bord amont de ladite porte et comprend : un élément souple (38) suivant le prof il courbe de ladite porte entre deux points d'ancrage distants, au moins un index de sécurité comprenant un loquet (60) susceptible de pivoter autour d'un axe de rotation (62) relié à la porte (16) afin d'occuper une position dite verrouillée dans laquelle l'extrémité du loquet (60) peut prendre appui contre la surface intérieure d'un bord en amont de la porte (16) et une autre position dite déverrouillée dans laquelle l'extrémité du loquet (60) est décalée par rapport audit bord, ledit loquet (60) empêchant en position verrouillé les phénomènes d'écopage en limitant les mouvements de la porte dans la direction radiale vers l'extérieur de la nacelle, et des moyens pour tendre l'élément souple (38) entre les deux points d'ancrage et commander le pivotement en position verrouillée dudit loquet (60).
Andre Robert
Fargues Matthieu
Porte Alain
Airbus Operations
Robic
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