Abstract: The collapsible drum comprises flange plates associated with a hub made up of hinged elements, each of which comprises two portions and has end faces that are substantially perpendicular to a longitudinal direction of the portions, the portions having respective ends that face each other and that are connected together, and respective opposite ends that are connected to respective ones of the flange plates via resilient members.
Abstract: The collapsible drum comprises flange plates associated with a hub made up of hinged elements, each of which comprises two portions having respective ends that face each other and that are connected together, and respective opposite ends that are connected to respective ones of the flange plates via collapsible hinge means, and at least one reinforcing and locking member extending axially inside the hub and providing a resilient link tending to urge the flange plates towards each other.