Tire manufacturing method and tire

A method for manufacturing a tire,

• the tire comprising a rubber assembly of a first rubber member, a second rubber member and a third rubber member made of different compositions
• wherein
• in a cross-section of the tire including the rotational axis of the tire, the rubber assembly extends in a direction,
• the second rubber member is connected to a first end portion of the first rubber member in said direction, and
• the third rubber member is connected to a second end portion of the first rubber member in said direction,
• the method comprising:
• extruding a first extrusion rubber portion and a second extrusion rubber portion separately which correspond to two portions of an unvulcanized rubber assembly divided by a division surface passing through an unvulcanized first rubber member, so that the first extrusion rubber portion includes a part of the unvulcanized first rubber member and a whole of an unvulcanized second rubber member, and the second extrusion rubber portion includes a rest of the unvulcanized first rubber member and a whole of an unvulcanized third rubber member;
• forming a base annular body by winding the first extrusion rubber portion around a rotating body;
• and
• forming the unvulcanized rubber assembly by winding the second extrusion rubber portion around the rotating body so that only part of said rest of the unvulcanized first rubber member of the second extrusion rubber portion overlaps with said part of the unvulcanized first rubber member of the base annular body, whereby the unvulcanized first rubber member divided into two by the division surface is united into one body to which the unvulcanized second rubber member and the unvulcanized third rubber member are connected.