초록 ▼

A ski having a sole equipped with discontinuous serrations including a central flat gliding zone and on one side, at least, a lateral curved gliding zone bordering the central zone. The surface of the rear portion at least, of the central zone between the rear contact line and the center line of the

A ski having a sole equipped with discontinuous serrations including a central flat gliding zone and on one side, at least, a lateral curved gliding zone bordering the central zone. The surface of the rear portion at least, of the central zone between the rear contact line and the center line of the boot of the ski is equipped with a pronounced structuring such that the measured values of the significant roughness parameters Rtm and Rku are greater than the values measured on the surface of the lateral curved gliding zone. The invention is more specifically related to an alpine ski whose ability to pivot and to glide are thus improved.

대표청구항 ▼

[ What is claimed is:] [1.] A ski comprising:a lower surface having a variable width, said lower surface comprising a plastic material, said lower surface further having a front contact line, a rear contact line, and a boot center line, the ski being supported at said front contact line and said rea

[ What is claimed is:] [1.] A ski comprising:a lower surface having a variable width, said lower surface comprising a plastic material, said lower surface further having a front contact line, a rear contact line, and a boot center line, the ski being supported at said front contact line and said rear contact line when the ski is not loaded, said lower surface further comprising a central gliding zone between said front contact line and said rear contact line, said lower surface further comprising a laterally curved gliding zone bordering said central gliding zone on at least one lateral side of said central gliding zone, said laterally curved gliding zone having a width, between said front contact line and said rear contact line, greater than 0.03 of said width of said lower surface, said lower surface having a plurality of discontinuous serrations defined by roughness parameters Rtm and Rku, said roughness parameters Rtm and Rku measured at said central gliding zone, at least between said rear contact line and said boot center line, having values greater than said roughness parameters Rtm and Rku measured at said at least one laterally curved gliding zone;said central gliding zone of said lower surface, between said serrations, being substantially flat; anda pair of side running edges laterally bordering said lower surface.