| 摘要 |
PURPOSE:To obtain a high energy absorbing core material in headline by configurating a device in such a way that both a ring section and spoke sections, which are formed by winding continuous fiber bundles impregnated with resin around both a boss and a circular jig, is provided, and beams made of fiber reinforced resin are adapted to connect spokes one another so as to strengthen these spokes simultaneously. CONSTITUTION:Continuous fiber bundles such as glass fiber, carbon fiber, and the like which are impregnated with synthetic resin such as, for example, polyester resin, epoxy resin, and the like are laminated while they are winded around a boss 2 and a circular jig (not shown). Then, the core material 7 is processed into a film formation with urethane resin and the like applied. In this configuration, the core material 7 is composed of a ring section 5, and spoke sections 6a-6c, and FRP beams 11 are adapted to connect spoke sections one another. And catchers 12a-12c are embedded into desired positions so as to adapt the beams 11, and fiber bundles are winded around these catchers 12a-12c. |
