METHOD FOR MOLDING CYLINDRICAL MEMBER, CARCASS PLY MATERIAL, AND PNEUMATIC TIRE

摘要

PROBLEM TO BE SOLVED: To provide a method for molding a cylindrical member, which is capable of decreasing occurrences of cracks by reducing stress concentration on a sheet-like member adjacent to the inside, and to provide a carcass ply material and a pneumatic tire.SOLUTION: A method for molding a cylindrical member has a superimposing and bonding step where a belt-like rubber member 1 is wrapped around the circumference of a tire building drum 13 wrapped with a sheet-like member 15 and both ends of the rubber member 1 are superimposed and bonded, and a thickness-reducing step where the thickness of at least an end on the inner side 1c of the rubber member facing the sheet-like member when superimposed and bonded is reduced prior to the superimposing and bonding step.