Abstract:
A method and a device for manufacturing a tire and a tire component; the method, comprising the step of forming a green tire or a tire component by stackingly winding a rubber strip at least having one lateral end part of substantially zero in thickness and also having such a cross sectional shape that the thickness thereof is gradually decreased from a lateral maximum thickness position to the end part thereof or polishing out the projected parts at the step portions of the green tire or tire component formed by stackingly winding the rubber strip thereon to prevent air from remaining in the green tire and a saw blade-like external surface from being generated, whereby the remaining of air, bare, flow cracking, and inclusion of foreign matter in a product tire can be suppressed to increase the durability of the product tire.