US Patent 11649677 Movable ladder

Disclosed is a movable ladder formed by a structural element composed of a rear part and two sides, the lower part of the vertical structural elements of the ladder terminating in lateral projections in the form of an inverted “U” that provide the ladder with reliable support on the floor. The ladder is characterised in that it is provided with two collapsible lateral platforms and four wheels that can be raised or lowered to facilitate the movement of the ladder toward the work area.