Suspension device of a structure

The invention concerns a device for coupling a suspended structure to a suspension structure. Two series of strips are fixed to the suspended and suspension structures, so that each one forms a closed convex envelope and consists of strips which are flexible in a radial direction with regard to the envelope. The two series are connected by a treillis of rigid bars set to form juxtaposed V or X. The present device provides a good transversal rigidity and a radially flexible suspension. The invention applies, e.g. to a fast neutron nuclear reactor comprising a vertical-axis vessel, containing the reactor core and filled with liquid metal, the said vessel being closed by a roof slab from which is suspended a core cover plate including monitoring and surveillance instrumentation and the deflection means for the sodium jet flowing from the core, characterised by a core-cover suspended from the roof slab by means of the present coupling system