Patent ID: 8163221

Claim:
A method for producing a reinforcing fiber molding obtained by molding a strip-like laminate comprising layered multiple reinforcing fiber sheets and a laminate maintaining material for maintaining the layered state, wherein the molding has at least two bent portions in a sectional form perpendicular to a longitudinal direction of said strip-like laminate, has a web portion formed between the ends of the adjacent bent portions, and has at least two flange portions protruding from the web portion via the bent portions, the method comprising: (a) supplying said strip-like laminate, (b) producing the at least two bent portions in said strip-like laminate, and (c) intermittently carrying said strip-like laminate located continuously in a region from said supplying step (a) to said bent portion producing step (b), wherein (d) said bent portion producing step (b) comprises respectively independent at least two bent portion molding steps provided at different positions in the direction for carrying said strip-like laminate, (e) said at least two bent portion molding steps include a first bent portion molding step positioned on an upstream side and a second bent portion molding step positioned downstream of said first bent portion molding step, and (f) said first bent portion molding step includes molding at least one bent portion of the at least two bent portions, and said second bent portion molding step includes molding at least one bent portion of the at least two bent portions other than the bent portion molded by said first bent portion molding step, wherein said first bent portion molding step and/or said second bent portion molding step includes changing the distance between at least two bent portions in the sectional form in the longitudinal direction of said strip-like laminate, wherein said first bent portion molding step is performed with a first mold comprising two mold parts facing each other for holding and pressurizing said strip-like laminate between them to mold a bent portion and said second bent portion molding step is performed with a second mold comprising two mold parts facing each other for holding and pressurizing said strip-like laminate between them to mold another bent portion, and wherein said step of changing the distance between the at least two bent portions in the sectional form in the longitudinal direction of said strip-like laminate comprises changing the relative distance between said first mold and said second mold by moving one or both of said first mold and said second mold relative to the other.