Device for inflating a tubeless tyre placed on a rim

The machine for inflating a tubeless tire (1) mounted on a wheel rim (9) comprises an inflation lock (10) fitted with a lift mechanism (8). The lock has an outer ring (2) which makes a pressure-tight fit on the side wall (11) of the tire. A press shoe (5) inside the lock pushes the tire bead (3) away from the rim and this is fitted with controls (6, 7) which allow it to move independently of the motion of the lock.