Abstract: The invention relates to a mechanical device for modifying the radial geometry of a ski, proportionally to its flexion, which includes elements, referred to as transmission elements, which, each interposed between the rod and the ski wherein each transform a relative displacement of the rod, oriented along its longitudinal axis and directed towards one of the ends of the ski (direction S1), into a second displacement oriented along a direction intersecting the longitudinal axis and directed towards the outside of the ski and wherein each apply this displacement at a selected place of the ski so as to bring about, during the relative displacement of the rod, a thrust generating the deformation of this ski along its cross-section, transverse deformation translated, in particular, through a spacing apart in the upper part of the ski and through the desired modification of the geometry of the lower face of this ski.

Abstract: A mechanical device for modifying the radial geometry of a ski, proportionally to its flexion. The device includes transmission elements, each interposed between a rod and a ski. Each transmission element transforms a relative displacement of the rod, oriented along its longitudinal axis and directed towards one of the ends of the ski, into a second displacement oriented along a direction intersecting the longitudinal axis and directed towards the outside of the ski. Each transmission element applies this displacement at a selected place of the ski to bring about, during the relative displacement of the rod, a thrust generating the deformation of the ski along its cross-section, transverse deformation translated, in particular, through a spacing apart in the upper part of the ski and through the desired modification of the geometry of the lower face of the ski.

Abstract: The binding for a sports apparatus, particularly for a snowboard, ski, monoski, or snowshoe, with rotary closure, has a hub (34) fixed to the sports apparatus, about which hub a binding support plate (19) is rotatingly disposed. The binding support plate (19) is fixable in relation to a hub in the running position, and two binding bodies having holding means for a boot are secured thereto. Connected to the hub fixed to the sports apparatus is at least one element (36) receiving pulling and/or pushing forces, one end of which engages the hub (34, 35), and the other end of which is coupled to a holding device. Upon rotation of the binding support plate (19), the holding device fixes a boot in the binding or releases it as a function of the position relative to the hub through co-operation with the element (36) receiving pulling and/or pushing forces.