SYSTEME DE ROULEMENT POUR AERONEF

Système de roulement pour aéronef, comportant des atterrisseurs télescopiques qui prennent appui sur le sol par l'intermédiaire de roues et qui présentent une longueur variable en fonction de la charge qui leur est appliquée par l'aéronef. Ce système comporte au moins un ensemble de vérin susceptible de presser vers l'extérieur au moins un organe de roulement avec un force constante. L'organe de roulement n'est mis en contact du sol qu'aprés l'impact des atterrisseurs télescopiques et que lorsque la longueur des atterrisseurs télescopiques correspond à un seuil prédétermine de charge appliqué a ceux-ci, le seuil étant inférieur a la charge correspondant au décollage. 1. Rolling device for aircraft, comprising telescopic landing gears (2, 3) which abut on the ground (35) via wheels (8, 9) and which present a variable length as a function of the load (C) which is applied thereto by said aircraft (1), characterized in that it comprises at least one rolling leg (10, 11) formed by a jack assembly (16, 30, 31, 32) and by at least one rolling member (14, 15), on which said jack assembly exerts a constant force (F) and in that said jack assembly (16, 30, 31, 32) is capable of communicating to said rolling member (14, 15) at least two relative positions of retraction with respect to the wheels of said telescopic landing gears when said aircraft rolls on the ground, the first of these positions being such that said rolling member (14, 15) is maintained spaced apart from the ground whatever the compression of said telescopic landing gears under the load that is applied thereto by the aircraft, whilst the second of said positions is such that said rolling member (14, 15) is placed in contact with the ground when the length of said telescopic landing gears (2, 3) corresponds to a predetermined load threshold (T1) applied thereto, said threshold (T1) being less than the load corresponding to take-off.