Land vehicles – Skates – Runner type
Patent
1995-09-26
1998-06-23
Boehler, Anne Marie
Land vehicles
Skates
Runner type
280 142, A63C 514
Patent
active
057694451
ABSTRACT:
A composite torsion box core for a snowboard comprises a center core member of lightweight wood or foam enveloped within a composite of a seamless, large diameter tubular sock. By expanding or compressing the length of the large diameter tubular sock during fabrication, the alignment of fibers within the sock is adjusted for programming a desired longitudinal and torsional rigidity relationship for the snowboard. Furthermore, side members, comprising separate composite torsion box cores having smaller diameter tubular socks, are disposed on opposite sides of the center core member and provide increased side strength for the overall torsion box core for enhancing the snowboard's edging strength without compromising torsional flexibility. Plural side members of various materials, sizes and spacing relative to each other are employed to provide snowboards having differing ride characteristics.
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Engineered Materials Handbook, vol. 1, ASM International, chapters entitled "Introduction to Composites", pp. 27-29, 32-33 and 50-51; Epoxy Resins, pp. 66-71; Polymide Resins, pp. 78-79.
Boehler Anne Marie
Morrow Snowboards, Inc.
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