Articulated vehicle

Articulated vehicle traveling on the ground into a longitudinal direction, comprising two chassis (1, 2) linked with each other by the means of an articulation (3) rotating around longitudinal axis (x′x), parallel to the traveling direction, both said chassis having their mid planes intersecting in articulation axis, respectively a first chassis (1) resting on the ground by the means of a first rolling part (13) and centered on a first median plane (P1) perpendicular to the ground, and a second chassis (2) resting on the ground by the means of a second rolling part (22), adjustable in relation to the traveling direction and centered on a second median plane (P2), liable to be inclined inclinable in relation to the ground by rotation around articulation axis x′x, and a removable locking device (30, 6) of the articulation (3), comprising two parts (31, 61) (33, 64), integral in rotation, respectively of first and of second said chassis, and a removable locking device of articulation (3), comprising a pendulum type device (4) (62), controlling the integral rotation of said two parts, said pendulum type device (4) (62) being suspended to second chassis (2) and mounted oscillating in relation to second median plane (P2), between a median position unlocking the articulation, wherein the second median plane (P2) is adjusted in relation to the apparent vertical determined by pendulum type device (4), that is to say the result of combined gravitational and centrifugal forces, and a spaced position locking the articulation (3), at least, at standstill of vehicle, by inclination of second chassis (2) in relation to the apparent vertical, wherein said second chassis comprises a device (5) so as to command the unlocking of the articulation, at least at start of vehicle, constituted of an auxiliary platform, integral in rotation with first chassis (1), fitted with two footboards (51) substantially located at same level above ground, on either side of articulation axis (x′x), each of said footboard constituting, on the side the vehicle is slanted, a support, for the driver of vehicle, so as to raise said second chassis (2), with return of pendulum (4)(62) to its articulation unlocking median position 3.