Patent ID: 8211257

Claim:
A tire building method, wherein in a part of a process of tire building, two drum transfer support bases which rotatably support respective building drums are used; a first transfer section setting a building position of at least one tire constituent member, and a second transfer section setting a building position of at least one tire constituent member, and in which sections each drum transfer support base transfers in a linear direction from a rotational transfer device to a plurality of building positions, are provided substantially parallel to, but axially offset from, each other and are longitudinally displaced from each other; the rotational transfer device is interposed between one end of the first transfer section and an end of the second transfer section closest to said one end of the first transfer section; the following first process and second process are simultaneously conducted; first process: in the first transfer section, one drum support base is transferred linearly to each of the respective building positions, and a rubber material is successively wound around a drum in each building position of the first transfer section, thereby building respective tire constituent members; second process: in the second transfer section, another drum support base is transferred linearly to each of the respective building positions, and a rubber material is successively wound around a drum in each building position of the second transfer section, thereby building respective tire constituent members; and the following third process and fourth process are simultaneously conducted; third process: the one drum transfer support base after completion of the winding in the first transfer section in the first process is rotated 180° through the rotational transfer device, and at the same time, is transferred to the second transfer section; fourth process: the other drum transfer support base after completion of the winding in the second transfer section in the second process is rotated 180° through the rotational transfer device, and at the same time, is transferred to the first transfer section.