Abstract: A pantograph includes a chassis, a bow, an articulated arm comprising at least one main rod and at least one auxiliary rod, an aileron assembly comprising at least one aileron which is movable relative to the articulated arm, support means for supporting the movable aileron which are movably mounted on the main rod or the auxiliary rod, means for immobilizing the support means relative to the support rod, and orienting means mounted on the main rod or the auxiliary rod. Over a first range of extension of the articulated arm, the orienting means do not act on the support means such that a characteristic angle of the aileron is substantially constant. Over a second range of extension of the articulated arm, the orienting means act on the support means such that the characteristic angle of the aileron varies continuously.

Abstract: Said pantograph comprises a chassis, a bow, an articulated arm (210) comprising at least one main rod (216) and at least one auxiliary rod (220), an aileron assembly comprising at least one aileron (10) which is movable relative to the articulated arm, means (3) for supporting the movable aileron (10) which are movably mounted on one of the rods, which is to say either the main rod or the auxiliary rod, which is referred to as the support rod (216), means for immobilizing (4, 7) the support means relative to the support rod, and orienting means (8) which are mounted on the other rod, which is to say either the main rod or the auxiliary rod, which is referred to as the orienting rod (220).