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Apparatus for forming a radial tire










Image Number 4 for United States Patent #5853525.

After a carcass band is elastically deformed temporarily into a standing wave shape, a bead core is located at a predetermined position on the outside of the carcass band. The elastic deformation of the carcass band is eliminated, and the carcass band is pressed against the inner peripheral surface of the bead core to form a first assembly. The first assembly is held by a first transfer from the outside, and an inner liner band of cylindrical shape with an outside diameter smaller than the inside diameter of the first assembly, is located at a predetermined position in the first assembly. The inner liner band is expanded and pressed against the inner peripheral surface of the first assembly to form a second assembly. Then, a third assembly composed of a sidewall, chafer and the like of cylindrical shape and having an outside diameter smaller than the inside diameter of the second assembly, is located at a predetermined position in the second assembly. The third assembly is expanded and pressed against the inner peripheral surface of the second assembly to form a fourth assembly, and the fourth assembly held by the first transfer is moved to a predetermined position on the shaping drum, where the fourth assembly is formed into a toroidal shape and assembled to a belt-tread assembly, which is formed into a cylindrical shape separately, to form a green tire.








 
 
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