Tubular suspension spring, structured in an elongated body (1) which has an internal cavity (11) of variable cross-section in its different longitudinal zones, the walls of this internal cavity (11) being able to maintain constant or variable thicknesses a...

System for attaching a leaf spring to a vehicle axle and leaf spring for a vehicle axle, of the type wherein, in a coordinate representation, the spring is represented by the coordinate axis OX and the vehicle axle by the coordinate axis OZ, and which cons...