Composite diving board

摘要

A composite diving board which has a sandwich structure of an upper and lower composite laminate surrounding a central core. The laminates comprise a fibrous material comprising fibers of carbon, graphite, aramid, oriented high molecular weight polyethylene, oriented high molecular weight polypropylene, and/or boron. The core has a decrease in thickness along the longitudinal axis of the board from a fulcrum region toward the tip end of the board.

主权项

1. A composite diving board comprising:
a rectangular and flat top surface, a bottom surface, a base end, a tip end, a fulcrum section on which the board is adapted to pivot that is forward of the base end of the board but between the base end of the board and a lengthwise center of the board, a length of at least 10 feet and less than 20 feet along a longitudinal axis of the board from its base end to its tip end, a width between one and three feet transverse to the longitudinal axis, and a thickness, the board being adapted to being secured at its base end with said fulcrum section supporting the board in cantilever fashion over a fulcrum; a central core, an upper composite laminate between the top surface and the central core, and a lower composite laminate between the bottom surface and the central core, to define a sandwich composite of the upper composite laminate, central core, and lower composite laminate; each of the upper and lower composite laminates comprising a resin-impregnated fibrous material and the central core comprising a material different from said fibrous material; wherein the fibrous material comprises fibers of carbon, graphite, aramid, oriented high molecular weight polyethylene, oriented high molecular weight polypropylene, and/or boron; wherein the central core has a decrease in thickness along the longitudinal axis of the board from the fulcrum section toward the tip end of the board; and wherein the core consists of a foam material, wherein the upper and lower composite laminate fibrous materials are in direct contact with the central core foam material, and wherein the sandwich composite defined by the upper composite laminate, the central core, and the lower composite laminate consists of the upper composite laminate and the lower composite laminate on the central core.