METHOD FOR MANUFACTURING RESIN MOLDING, AND RESIN MOLDING

摘要

PROBLEM TO BE SOLVED: To provide a new method for manufacturing a resin molding having a hollow structure, enabling achieving excellent mass-productiveness.SOLUTION: A manufacturing method for obtaining a longitudinal resin molding having a hollow structure, includes: using a longitudinal elastic core 26 comprising a composite body of an elastic body 42 and a continuous fiber 44; molding a resin material on the outer peripheral surface of the elastic core 26; and taking out from one end side of the elastic core 26 to the longitudinal direction. Tensile force applied to the elastic core 26 is transmitted to the longitudinal direction by the continuous fiber 44 so as to efficiently subject the elastic core 26 to cross section reduction deformation in a sufficiently long area, and facilitate mold-releasing and taking out from the inner peripheral surface of the resin molding.SELECTED DRAWING: Figure 2