Green tire manufacturing method and green tire manufacturing apparatus
AssigneeToyo Tire Corporation
InventorKazuma Hanafusa
Life of this patent
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Abstract
A green tire manufacturing method according to an embodiment includes molding a combined body by attaching a belt band to an outer circumferential surface of a carcass band substantially expanded into a tire shape at a combined body molding position, pressing a surface of the combined body, moving the combined body from the combined body molding position to a sidewall molding position, and molding a sidewall on a side surface of the combined body at the sidewall molding position to form a green tire.
Claims3
A green tire manufacturing method in which a belt band is attached to a carcass band to form a combined body and a sidewall rubber is attached to the combined body to form a green tire, the green tire manufacturing method comprising:
- using a green tire manufacturing apparatus having a combined body molding position and a sidewall molding position that are two different positions, and having rails with the combined body molding position, rails with the sidewall molding position and rails;
- a combined body manufacturing step of holding the carcass band on a shaping drum at the combined body molding position, attaching the belt band to the carcass band on the same shaping drum to form the combined body, and pressing a surface of the combined body;
- moving the combined body from the combined body molding position to the sidewall molding position along the rails which span the combined body molding position rails and the sidewall molding position rails by using a transfer device which holds the combined body;
- a sidewall molding step of attaching the sidewall rubber to the combined body held by a sidewall drum which is a drum different from the shaping drum at the sidewall molding position;
- a step of transferring the combined body from the shaping drum to the transfer device;
- and
- a step of transferring the combined body from the transfer device to the sidewall drum;
- wherein
- a plurality of the green tires are continuously molded;
- and
- at least a part of the sidewall molding step at the sidewall molding position and at least a part of the combined body manufacturing step at the combined body molding position are performed in parallel.
Dependencies are inferred from the claim text.