| 摘要 |
A rugged, flexible snow ski having a lightweight core (e.g., polyurethane foam) encapsulated within a shell made of a tough, resilient thermoplastic which has been reinforced with glass fibers. The ski can be manufactured by hot pressing a ski assembly which comprises a high-density polyethylene running surface, steel edges, a preformed polyurethane foam core interposed between upper and lower sheets of glass fiber reinforced thermoplastic and bounded on each side by sheets of glass fiber reinforced thermoplastic, all topped by a decorative plastic cover sheet. During the hot pressing, the four glass reinforced plastic sheets which surround the core are fused together to form a shell which encapsulates the foam core, and the entire ski assembly is firmly bonded together to form a unitized structure.
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