TYRE, RIM, SUPPORTING RING AND ASSEMBLY COMPRISING SAME

摘要

A tyre (1), a mounting rim (2) for said tyre (1) and a ring-shaped support (3) for supporting the tread (10) of the tyre (1) should the tyre pressure when driving be low or zero. The rim (2) has two seats (23' and 23") of which the first seat (23') has an outwardly-sloping generatrix and an axial outer extension in the form of a projection (25'), whereas the second seat (23") has an inwardly-sloping generatrix and an axial outer extension in the form of a flange (24). The tyre (1) has the meridian profile of a radial carcass reinforcement (13), and bead structures (12', 12") fitted to the mounting rim (2), and forms with said rim an assembly enabling driving at low or even zero tyre pressure.