Patent ID: 11884035
Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. A method for manufacturing a tire blank comprising the following steps:
manufactured manufacturing a cylindrical-shaped tire blank using the drum according to claim 5; blocking rotation of the second radially external ring of the drum by actuating braking means; holding beads of the tire blank by supplying compressed air to the holding device using the compressed-air supply means; stretching a crown of the tire blank so as to increase its diameter, by pressurizing a volume delimited by the blank and the drum with air, and axially bringing closer together the beads of the tire blank, using the drum; and simultaneously with the axial bringing closer together of the beads of the tire blank, freeing a rotation of the second radially external ring by not actuating the braking means.