Shaped ski of non-rectangular cross section

Abstract

A ski with a non-rectangular cross section has a filling core, for example made of polyurethane foam, a shell forming the upper face and at least a part of the lateral faces of the ski, a lower face equipped with longitudinal metal edges and with a central sliding sole. The ski includes two longitudinal reinforcement elements which extend at least in the binding mounting area of the ski and are arranged on either side of the core, each reinforcement element has a lower face which extends to a great extent over the width of an edge so as to afford it an effective support, and extends over at least a part of the height of the ski, the reinforcement elements not being covered laterally by the shell and thus forming the narrow sides of the ski, at least in the binding mounting area of the ski.

Description

BACKGROUND OF THE INVENTIONThe present invention relates to a shaped ski of non-rectangular cross section.It is more and more common to produce shaped skis, that is to say.[.).]..Iadd., .Iaddend.skis of non-rectangular cross section which have a shell forming the upper face and the lateral faces of the ski, these lateral faces possibly being inclined over at least a part of their height. In this case, this inclination can be constant or variable over the length of the ski, and can be brought about by plane or curved surfaces.It is also advantageous to produce skis comprising a filling core made of synthetic foam material, for example of polyurethane, which has excellent properties of stability over time and is not of great weight.The advantage of a conventional ski is in particular that it has rigid narrow sides, for example made of ABS or of phenolic laminate, which ensure excellent transmission of the forces exerted by the snow surface on the edges of the ski towards the upper fac...

AI Technical Summary

Benefits of technology

The aim of the invention is to provide a shaped ski of non-rectangular cross section, comprising a filling core, for example made of a synthetic foam material, and in particular of polyurethane, the upper face and at least a part of the lateral faces of which are constituted by a shell, in order to have the quality of finish of skis comprising a shell while offering the technical qualities of conventional skis, ensuring at least in the region of the runner direct transmission of the forces from the edges to the upper face of the ski which is equipped with the binding.

It is important that the central part of each reinforcement element, which is situated in the binding mounting area of the ski, is rigid, it being possible for the end parts to be made of more flexible materials, such as viscoelastic materials having good damping characteristics.

Problems solved by technology

The disadvantage of these different solutions derives from the fact that there are no wide elements which ensure direct transmission of the forces from the edges to the upper face which is equipped with the binding because the core is not supported on the edges and the elements for reinforcement of the shell are laid against the inclined sides of the latter and are supported at points on each edge.

The result therefore is skis which have average behavior characteristics and which cannot satisfy the required quality criteria, in particular in competition where the steering accuracy desired for the skis imposes as perfect as possible a transmission of the forces from the edges towards the upper face of the ski.