Patent ID: 7967248

Claim:
A rib element for aircraft, which is an elongated support component to be arranged in a space defined by skin plates and edge spars in a wing, guide surface or stabilizer of the aircraft and which comprises: a first flange and a third flange having outer surfaces which are arrangeable towards the skin plates of a wing, guide surface or stabilizer, a second flange connected to the first flange and the third flange at first and second corners and at predetermined angles, the first and second corners having rounded inner corners and rounded outer corners between the flanges, the second flange having transverse ends which are arrangeable towards the edge spars of a wing, guide surface or stabilizer, wherein the rib element is manufactured from a composite material and further comprises a reinforcing component attached to the rib element, the reinforcing component being manufactured in a separate phase with respect to the rib element and arranged in the first corner between the first and second flanges of the rib element to cover at least a part of the inner corner of the first corner and to reinforce the first corner, wherein the reinforcing component is an elongated plate-like piece provided with a first end and a second end, the second end of the reinforcing component is curved and has a radius of curvature substantially corresponding to a radius of curvature of the inner corner, the reinforcing component is attached to the first flange and arranged such that the curved second end of the reinforcing component resides and terminates against the inner corner of the first corner, and a thickness of the reinforcing component is smaller than the radius of curvature of the inner corner of the first corner.