Vehicle wheel with a tubeless pneumatic tire and a one-piece rim having an emergency rolling surface and a process for mounting the tire on the rim

A process for mounting a tubeless pneumatic tire provided with an elastic bead, the bead having an enlargement on each side wall of the pneumatic tire and having a variable circumferential length, on a one-piece wheel rim having an emergency rolling surface provided on a radially exterior shell of the rim and a one-piece toroidal chamber provided at each axial front end of the wheel rim, each chamber including a plurality of toroidal chamber walls, one chamber wall being a radially interior chamber wall, another chamber wall being a radially exterior chamber wall, another chamber wall being axially inward to a center portion of the rim, and another chamber wall being axially exterior to an exterior of the rim, the plurality of toroidal chamber walls that are radially inward, radially outward and axially inward to the center of the rim being closed and the toroidal chamber wall axially exterior to an exterior of the rim being closed in a radially exterior area so as to define a wheel flange directed radially inward and having an opening in a radially interior area so as to embed the bead of the tire and a filler ring in the wheel rim toroidal chamber, comprising:

• introducing the pneumatic tire through the radially interior opening of the chamber, each side wall of the tire extending inwardly from the axially exterior wall through the opening;
• positioning the bead of the pneumatic tire in the respective toroidal chamber;
• and
• radially securing the filler ring in each toroidal chamber on the radially interior chamber wall by axial displacement of the filler ring on the radially interior chamber wall, thereby embedding the bead in the toroidal chamber radially outside the filler ring in an axial and radial form closure contact with the filler ring, the radially exterior wall, the axially interior wall, and the axially exterior closed toroidal chamber wall so that the bead is connected in the toroidal chamber to the radially exterior wall, to the axially exterior wall, to the axially interior wall and to the form closure via the filler ring, the bead lying on the filler ring across the axial extent of the filler ring in the toroidal chamber and the bead and the filler ring completely filling the toroidal chamber, so as to fasten the bead in the chamber.