Patent ID: 8057617

Claim:
A method for producing a tubular body comprising a laminate of prepregs each consisting of a matrix resin and reinforcing fibers impregnated with said matrix resin, said method including a step of winding round a core bias prepregs in which orientation directions of reinforcing fibers incline to an axis of said tubular body, winding straight prepregs in which orientation directions of reinforcing fibers are parallel with said axis of said tubular body, and hoop prepregs in which orientation directions of reinforcing fibers are disposed perpendicularly to said axis of said tubular body, wherein at said winding step, after at least one of said hoop prepregs is adherently layered in advance on at least one base prepreg consisting of one of said bias prepregs or one of said straight prepregs to form one or more laminates, at least one of said laminates is wound on said core so that at least one of said hoop prepregs is wound on said core integrally with at least one of said base prepregs, and wherein in the step of the at least one of said laminates, both edges of the least one of the hoop prepregs, which is adherently layered on the least one of base prepregs, in the axial direction of the tubular body, an initial edge and a termination edge of the least one of hoop prepregs in a hoop prepreg-winding direction are disposed inward from a peripheral edge of the least one of base prepregs, and the both edges of the least one of hoop prepregs in the axial direction of the tubular body are disposed inward from final cut positions which are position of both ends of the tubular body in the axial direction.