A reinforcing device to provide an alternative improvement in the structural stability of laminated components includes a body structure having an abutment surface and at least one fastening area. The abutment surface extends along a first direction. In a cross-sectional direction, transverse to the first direction, the abutment surface includes a rounded contour section so abutment surface is configured to conform with a concave edge section of a laminated structural member. The at least one fastening area is provided at the body structure opposite to the abutment surface. The at least one fastening area is configured to secure the abutment surface against the concave edge section of the laminated structural member.