Patent ID: 6520530
Filing Date: 2003-02-18
Classification: A63C

Abstract:
A core for a gliding board, comprising:an elongated, thin core member constructed and arranged for incorporation into a gliding board and having a tip end, a tail end and a pair of opposed edges, wherein said core member has a longitudinal axis extending in a tip-to-tail direction, a transverse axis extending in an edge-to-edge direction perpendicular to said longitudinal axis, and a normal axis that is perpendicular to a base plane extending through said longitudinal axis and said transverse axis, said core member including a plurality of vertically laminated anisotropic structures, said plurality of vertically laminated anisotropic structures including first and second anisotropic structures, said first and second anisotropic structures having first and second principal axes, respectively, along which a mechanical property of said first and second anisotropic structures has a maximum value, said mechanical property being selected from the group consisting of compressive strength, compressive stiffness, compressive fatigue strength, compressive creep strength, tensile strength, tensile stiffness, tensile fatigue strength and tensile creep strength, wherein said first principal axis is oriented in a first direction and lies in a first plane that is parallel to said base plane, and said second principal axis is oriented in a second direction that is non-parallel to said first direction.