A device for assembling an airless tire () comprising a hub () of central axis (Z), a peripheral annular band () and a plurality of spokes () that connect the hub () to the peripheral annular band () comprises a plurality of pressing sub-assemblies () each comprising pushers () for pressing the feet () of the spokes () against the hub () and the peripheral annular band () respectively, as () and each hold a lever () that makes it possible to transmit a clamping force (F, F) to the pusher () while ensuring elastic radial suspension of the pusher () vis-à-vis the traveller () and therefore against the foot () of the spoke and the hub () or the peripheral annular ring () well as travellers () that are mounted radially movably under the control of a drive system respectively.
