A vehicle, in particular a commercial vehicle, equipped with a freight elevator configured to move an object, such as a construction machine, from the ground to the inside of the vehicle and conversely, this freight elevator comprising: - a fixed frame secured to said vehicle, - a platform (3, 3') supporting said object and movable relative to said frame, according to an upward motion, between a position, called "low" position, in which it is at ground level or substantially at ground level, so as to allow the loading or unloading of said object from or to the ground by an operator, and a position, called "high" position, and conversely according to a downward motion, - at least one means (4, 4") for guiding the movement of said platform (3, 3') relative to said frame, - at least one means (6, 6') for locking said platform in the high position, - at least one means (7, 7') for locking said platform in the low position, - at least one elastically deformable device (5, 5'a, 5'b), a fixed portion (51, 51a, 51b) of which is mechanically linked to said frame and an elastically deformable or elastically movable portion (52, 52a, 52b) of which is mechanically linked to said movable platform (3, 3'), this freight elevator being characterized in that said movement guide means comprises a slide (41, 410a, 410b) and a slider (42, 420a, 420b), one of which secured to said movable platform (3, 3') and the other secured to the frame, so as to perform a translational motion of the platform relative to said frame, in a vertical or substantially vertical direction between said low and high positions of the platform (3, 3'), and in that the elastically deformable device (5, 5'a, 5'b) is configured to: - accumulate, during the downward translational motion of the platform (3, 3') down to its low position, the potential energy of the gravity field provided beforehand by at least one operator standing on the movable platform (3, 3') when it is in the high position or provided beforehand by at least one operator standing on the movable platform (3, 3') and by the object placed on the movable platform when it is in the high position, - control the descent speed of the movable platform, - restore this accumulated potential energy, in a substantially constant manner and with a controlled speed, to said movable platform (3, 3'), in order to ensure, entirely, the upward motion thereof. - a fixed frame secured to said vehicle, - a platform (3, 3') supporting said object and movable relative to said frame, according to an upward motion, between a position, called "low" position, in which it is at ground level or substantially at ground level, so as to allow the loading or unloading of said object from or to the ground by an operator, and a position, called "high" position, and conversely according to a downward motion, - at least one means (4, 4") for guiding the movement of said platform (3, 3') relative to said frame, - at least one means (6, 6') for locking said platform in the high position, - at least one means (7, 7') for locking said platform in the low position, - at least one elastically deformable device (5, 5'a, 5'b), a fixed portion (51, 51a, 51b) of which is mechanically linked to said frame and an elastically deformable or elastically movable portion (52, 52a, 52b) of which is mechanically linked to said movable platform (3, 3'), - accumulate, during the downward translational motion of the platform (3, 3') down to its low position, the potential energy of the gravity field provided beforehand by at least one operator standing on the movable platform (3, 3') when it is in the high position or provided beforehand by at least one operator standing on the movable platform (3, 3') and by the object placed on the movable platform when it is in the high position, - control the descent speed of the movable platform, - restore this accumulated potential energy, in a substantially constant manner and with a controlled speed, to said movable platform (3, 3'), in order to ensure, entirely, the upward motion thereof.