Patent ID: 8500085

Claim:
A molding core for manufacturing a composite fiber stringer component for aerospace applications, the molding core comprising a hollow profile which is made in one piece from segments which establish the external geometry of the molding core, wherein the segments each extend in the direction of the longitudinal axis of the molding core and can each be pivoted about at least one axis running in the longitudinal direction of the molding core, wherein the segments are connected by first connections and are constructed to pivot about said axis by the first connections between a folded position and an unfolded position of the hollow profile of the molding core, wherein at least one of the segments comprises at least two subsegments which are connected by a second connection and which can be pivoted about at least one longitudinal axis of the molding core by the second connection, wherein at least one of the subsegments is lengthened beyond the respective second connection so as to form a projection extending the width of the respective subsegment over the second connection and forming a stop for the unfolded position, and wherein the first and second connections are constructed as film hinges in one piece together with the segments and subsegments to provide for said pivoting movements.