Lightweight suspension upright or knuckle

A method for obtaining a lightweight suspension upright or knuckle for a vehicle providing a bearing connection interface for receiving a wheel bearing, the bearing connection interface including a first sleeve element;

• the method comprising the steps of:
• i) providing the bearing connection interface with a second sleeve element arranged radially outside the first sleeve element and with an annular body, the bearing connection interface having a radially outer lateral surface and a radially inner lateral surface, the annular body being formed by injection or compression molding a composite material including reinforcing fibers dispersed in a polymer matrix directly upon a radially outer lateral surface of the first sleeve element so as to mechanically couple the second sleeve element to the first sleeve element;
• ii) forming around the annular body a supporting structural body shaped as a reticular frame by coupling together and with the annular body at least a plurality of first blade elements, each first blade element consisting in one or more plies of continuous fibers embedded in a polymer matrix, which plies are stacked onto one another when the first blade elements are formed by more than one plie,
• iii) compression molding the plies against one another and onto the bearing connection interface up to completely cure the plies so as to chemically and mechanically interconnect them to each other and also chemically and mechanically directly bound at least one first blade element to the outer lateral surface of the bearing connection interface;
• iv) applying to selected portions of at least some of the first blade elements at least one first and one second attachment interface configured to connect in use the suspension upright or knuckle to respective control or support elements therefor, so as to make the bearing connection interface integral with the at least one first and one second attachment interface via the supporting structural body.