The hardening frame of the aircraft or the space ship which has the lamination stringer of high rigidity, and the lamination stringer which corresponds

摘要

This invention offers the frame structure of the weight which has the lamination stringer of high rigidity low. The said stringer has, plural metal layers (S1, S3, S5 and S7) and one Kevlar layer (S2, S4 and S6) at least, the said Kevlar layer (S2, S4 and S5) is produced at least partly from the zairon fiber, two metal layers (S1, S3, S5 and S7) has between. Selective figure Figure 2