초록 ▼

In order to assure smooth and essentially equidistant running of correspondingly loaded pair of skis over ground when turning left or right without any sideslip, a ski is bent at its tip at a pre-determined angle around its longitudinal axis and deflected from the ground by a radius along a that lon

In order to assure smooth and essentially equidistant running of correspondingly loaded pair of skis over ground when turning left or right without any sideslip, a ski is bent at its tip at a pre-determined angle around its longitudinal axis and deflected from the ground by a radius along a that longitudinal axis. Despite a practically symmetric appearance of the circumference of such ski when observed in top view, the distance between a front inflection point and a rear inflection point on the left ski edge and the distance between the front inflection point and the rear inflection point on the right ski edge differ from each other such that the active lengths of the ski edges differ from each other. A weak area of the ski is provided adjacent at least one inflection point to provide different compression distributions between the ground and each of the ski edges.

대표청구항 ▼

1. A ski, comprising: an elongated ski base including a front portion, a rear portion located opposite the base from the front portion, a first side extending between the front portion and the rear portion, and a second side extending between the front portion and the rear portion and located opposi

1. A ski, comprising: an elongated ski base including a front portion, a rear portion located opposite the base from the front portion, a first side extending between the front portion and the rear portion, and a second side extending between the front portion and the rear portion and located opposite the base from the first side;a first side front inflection point located on the front portion of the base and adjacent the first side of the base;a first side rear inflection point located on the rear portion of the base and adjacent the first side of the base, wherein the first side rear inflection point is spaced apart from the first side front inflection point by a first distance;a second side front inflection point located on the front portion of the base and adjacent the second side of the base;a second side rear inflection point located on the rear portion of the base and adjacent the second side of the base, wherein the second side rear inflection point is spaced apart from the second side front inflection point by a second distance that is greater than the first distance; anda weak area provided in the base adjacent at least one of the first side front inflection point and the first side rear inflection point, wherein the weak area is operable to result in a first force distribution from the first side of the base to a surface that differs from a second force distribution from the second side of the base to a surface. 2. The ski of claim 1, wherein a first weak area is provided in the base adjacent the first side front inflection point, and a second weak area is provided in the base adjacent the first side rear inflection point. 3. The ski of claim 1, wherein the base includes a top bearing layer and the weak area includes a cutout in the top bearing layer. 4. The ski of claim 1, wherein the base includes a top bearing layer and a bottom bearing layer, and wherein the weak area includes a first cutout in the top bearing layer and a second cutout in the bottom bearing layer. 5. The ski of claim 1, wherein the base includes a top bearing layer and the weak area includes a cutout in the top bearing layer, and wherein the ski further comprises: at least one supplemental bearing layer located adjacent the cutout in the top bearing layer, wherein each at least one supplemental bearing layer includes a first edge that forms an acute angle with a longitudinal axis of the base and a second edge that is located opposite that at least one supplemental bearing layer from the first edge and that is shorter than the first edge. 6. The ski of claim 1, wherein the weak area includes a recess in the base that is oriented substantially perpendicularly relative to a bottom surface of the base. 7. The ski of claim 1, wherein the weak area includes a substantially sinusoidal-shaped recess that extends along a portion of the length of the base and that crosses a longitudinal axis of the base. 8. The ski of claim 7, wherein the base includes a top bearing layer and the weak area includes the sinusoidal-shaped recess in a portion of the top bearing layer. 9. The ski of claim 7, wherein the base includes a core and a top bearing layer and the weak area includes the sinusoidal-shaped recess in a portion of the top bearing layer and a portion of the core. 10. The ski of claim 7, wherein the base includes a core, a top bearing layer, and a bottom bearing layer located opposite the core from the top bearing layer, and wherein the weak area includes the sinusoidal-shaped recess in a portion of the top bearing layer, a portion of the core, and a portion of the bottom bearing layer. 11. A set of skis, comprising: a first ski that is operable to couple to a first ski shoe of a user, wherein the first ski includes an elongated first ski base having a first ski front portion, a first ski rear portion located opposite the first ski base from the first ski front portion, a first ski outer side extending between the first ski front portion and the first ski rear portion, and a first ski inner side extending between the first ski front portion and the first ski rear portion and located opposite the first ski base from the first ski outer side, and wherein the first ski further includes: a first ski outer side front inflection point located on the first ski front portion of the first ski base and adjacent the first ski outer side of the first ski base;a first ski outer side rear inflection point located on the first ski rear portion of the first ski base and adjacent the first ski outer side of the first ski base, wherein the first ski outer side rear inflection point is spaced apart from the first ski outer side front inflection point by a first distance;a first ski inner side front inflection point located on the first ski front portion of the first ski base and adjacent the first ski inner side of the first ski base;a first ski inner side rear inflection point located on the first ski rear portion of the first ski base and adjacent the first ski inner side of the first ski base, wherein the first ski inner side rear inflection point is spaced apart from the first ski inner side front inflection point by a second distance that is greater than the first distance; anda first ski weak area provided in the first ski base adjacent at least one of the first ski outer side front inflection point and the first ski outer side rear inflection point, wherein the first ski weak area is operable to result in a first ski inner side force distribution from the first ski inner side of the first ski base to a surface that differs from a first ski outer side force distribution from the first ski outer side of the first ski base to the surface; anda second ski that is operable to couple to a second ski shoe of a user, wherein the second ski includes an elongated second ski base having a second ski front portion, a second ski rear portion located opposite the second ski base from the second ski front portion, a second ski outer side extending between the second ski front portion and the second ski rear portion and that faces away from the first ski when the first ski is coupled to the first ski shoe and the second ski is coupled to the second ski shoe, and a second ski inner side extending between the second ski front portion and the second ski rear portion, located opposite the second ski base from the second ski outer side, and that faces towards the first ski when the first ski is coupled to the first ski shoe and the second ski is coupled to the second ski shoe, and wherein the second ski further includes: a second ski outer side front inflection point located on the second ski front portion of the second ski base and adjacent the second ski outer side of the second ski base;a second ski outer side rear inflection point located on the second ski rear portion of the second ski base and adjacent the second ski outer side of the second ski base, wherein the second ski outer side rear inflection point is spaced apart from the second ski outer side front inflection point by a third distance;a second ski inner side front inflection point located on the second ski front portion of the second ski base and adjacent the second ski inner side of the second ski base;a second ski inner side rear inflection point located on the second ski rear portion of the second ski base and adjacent the second ski inner side of the second ski base, wherein the second ski inner side rear inflection point is spaced apart from the second ski inner side front inflection point by a fourth distance that is greater than the third distance; anda second ski weak area provided in the second ski base adjacent at least one of the second ski outer side front inflection point and the second ski outer side rear inflection point, wherein the second ski weak area is operable to result in a second ski inner side force distribution from the second ski inner side of the second ski base to the surface that differs from a second ski outer side force distribution from the second ski outer side of the second ski base to the surface. 12. The set of skis of claim 11, wherein: the first ski includes a first first ski weak area that is provided in the first base adjacent the first ski outer side front inflection point, and a second first ski weak area that is provided in the first ski base adjacent the first ski outer side rear inflection point; andthe second ski includes a first second ski weak area that is provided in the second base adjacent the second ski outer side front inflection point, and a second second ski weak area that is provided in the second ski base adjacent the second ski outer side rear inflection point. 13. The set of skis of claim 11, wherein: the first ski base includes a first ski top bearing layer and the first ski weak area includes a first ski cutout in the first ski top bearing layer; andthe second ski base includes a second ski top bearing layer and the second ski weak area includes a second ski cutout in the second ski top bearing layer. 14. The set of skis of claim 11, wherein: the first ski includes the first ski base including a first ski top bearing layer and a first ski bottom bearing layer, and wherein the first ski weak area includes a first first ski cutout in the first ski top bearing layer and a second first ski cutout in the first ski bottom bearing layer; andthe second ski includes the second ski base including a second ski top bearing layer and a second ski bottom bearing layer, and wherein the second ski weak area includes a first second ski cutout in the second ski top bearing layer and a second second ski cutout in the second ski bottom bearing layer. 15. The set of skis of claim 11, wherein: the first ski includes the first ski base having a first ski top bearing layer and the first ski weak area includes a first ski cutout in the first ski top bearing layer, and wherein the first ski further includes at least one first ski supplemental bearing layer located adjacent the first ski cutout in the first ski top bearing layer, wherein each at least one first ski supplemental bearing layer includes a first first ski supplemental bearing layer edge that forms an first ski acute angle with a first ski longitudinal axis of the first ski base and a second first ski supplemental bearing layer edge that is located opposite that at least one first ski supplemental bearing layer from the first ski supplemental bearing layer edge and that is shorter than the first ski supplemental bearing layer edge; andthe second ski includes the second ski base having a second ski top bearing layer and the second ski weak area includes a second ski cutout in the second ski top bearing layer, and wherein the second ski further includes at least one second ski supplemental bearing layer located adjacent the second ski cutout in the second ski top bearing layer, wherein each at least one second ski supplemental bearing layer includes a first second ski supplemental bearing layer edge that forms an second ski acute angle with a second ski longitudinal axis of the second ski base and a second second ski supplemental bearing layer edge that is located opposite that at least one second ski supplemental bearing layer from the first second ski supplemental bearing layer edge and that is shorter than the first second ski supplemental bearing layer edge. 16. The set of skis of claim 11, wherein: the first ski weak area includes a first ski recess in the first ski base that is oriented substantially perpendicularly relative to a first ski bottom surface of the first ski base; andthe second ski weak area includes a second ski recess in the second ski base that is oriented substantially perpendicularly relative to a second ski bottom surface of the second ski base. 17. The set of skis of claim 11, wherein: the first ski weak area includes a substantially sinusoidal-shaped first ski recess that extends along a portion of the length of the first ski base and that crosses a first ski longitudinal axis of the first ski base; andthe second ski weak area includes a substantially sinusoidal-shaped second ski recess that extends along a portion of the length of the second ski base and that crosses a second ski longitudinal axis of the second ski base. 18. The set of skis of claim 17, wherein: the first ski base includes a first ski top bearing layer and the first ski weak area includes the sinusoidal-shaped first ski recess in a portion of the first ski top bearing layer; andthe second ski base includes a second ski top bearing layer and the second ski weak area includes the sinusoidal-shaped second ski recess in a portion of the second ski top bearing layer. 19. The set of skis of claim 17, wherein: the first ski base includes a first ski core and a first ski top bearing layer and the first ski weak area includes the sinusoidal-shaped first ski recess in a portion of the first ski top bearing layer and a portion of the first ski core; andthe second ski base includes a second ski core and a second ski top bearing layer and the second ski weak area includes the sinusoidal-shaped second ski recess in a portion of the second ski top bearing layer and a portion of the second ski core. 20. The set of skis of claim 17, wherein: the first ski base includes a first ski core, a first ski top bearing layer, and a first ski bottom bearing layer located opposite the first ski core from the first ski top bearing layer, and wherein the first ski weak area includes the sinusoidal-shaped first ski recess in a portion of the first ski top bearing layer, a portion of the first ski core, and a portion of the first ski bottom bearing layer; andthe second ski base includes a second ski core, a second ski top bearing layer, and a second ski bottom bearing layer located opposite the second ski core from the second ski top bearing layer, and wherein the second ski weak area includes the sinusoidal-shaped second ski recess in a portion of the second ski top bearing layer, a portion of the second ski core, and a portion of the second ski bottom bearing layer.