Patent ID: 8105523

Claim:
A method for manufacturing a curved reinforcement beam comprising a synthetic material that is reinforced by a fiber laminate, wherein the fiber laminate comprises a base area and a peripheral area, the method comprising the following steps: providing the fiber laminate, wherein the fiber laminate comprises at least one full-area layer with a first fiber direction which is in a range of +20° to +70°, at least one full-area layer with a second fiber direction which is in a range of −70° to −20° and at least one further partial layer with a third fiber direction which is substantially 0° and substantially follows a circumferential contour of the curved reinforcement beam, wherein the at least one further partial layer extends only over the peripheral area of the fiber laminate, laying the peripheral area of the fiber laminate onto a curved support, wherein layers with the first, the second and third fiber direction are arranged in the peripheral area, bending and subsequent draping of the base area of the fiber laminate, wherein only layers with the first and the second fiber direction are arranged in the base area, to form a curved L-blank having an L-shaped cross section, wherein the base area and the peripheral area of the fiber laminate define an angle of approximately 90° after bending and draping, and wherein the base area is arranged in a plane after bending; and wherein the base area of the fiber laminate of the curved L-blank is further bent by approximately 90° to form a curved Z-blank having a Z-shaped cross section or a curved C-blank having a C-shaped cross section, and impregnating the curved blank with a curable synthetic material and curing the impregnated curved blank to form a curved reinforcement beam.