| 摘要 |
PROBLEM TO BE SOLVED: To make a good external appearance of a lightweight article having enhanced strength and rigidity by a method wherein ribs or bosses are formed in the hollow part of an integral body, into which an outer layer made of a fiber reinforced resin under continuous fiber state and an inner layer made of a thermoplastic resin singly or reinforced by short fibers are made. SOLUTION: A fiber reinforced hollow molded article is a hollow molded article 10 having a hollow part 12 and has at least an outer layer 14 and an inner layer 16. The outer layer 14 is made of fiber reinforced resin, in the matrix resin of which reinforcing fibers under continuous fiber state are included. The inner layer 16 is made of injection-moldable thermoplastic resin, in which reinforcing material such as glass fibers, carbon fibers or the like may be included. At that case, from the view point of fluid moldability at injection, short fibers are preferable. In the hollow part 12, ribs 18 or bosses are formed. As for the shape of the rib 18 or the like, especially the formation of the ribs 18 or the like into a pseudo-honeycomb structure can display a very high mechanical strength. |
