US Patent 7837217 Ski or snowboard having improved torsional rigidity

A ski or snowboard having improved the transmission of forces from a binding mounting area to the respective edge of a ski or snowboard is disclosed. Such a ski or snowboard comprises a gliding surface with the associated edges as well as a lower support comprising a number of support layers over which a core with its associated lateral flanks is built. Over the core, a support is arranged in a uniform and relief-like manner that is constructed as a uniform whole from the shaped flat material, for example from laminate or in principle also from shaped sheet metal, or a plate or laminate or a similar flat semi-finished product of metallic or non-metallic material.