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Ski adapted to receive a skier's boot, the ski having a front tip, a rear end, front and rear contact lines, and a central zone between the front tip and the rear end. The distance separating the forward contact line and the ski tip is greater than or about 500 mm. The shovel, located between the fr

Ski adapted to receive a skier's boot, the ski having a front tip, a rear end, front and rear contact lines, and a central zone between the front tip and the rear end. The distance separating the forward contact line and the ski tip is greater than or about 500 mm. The shovel, located between the front tip and the forward contact line has a convex zone which includes a first shovel portion having a lateral profile extending between an arc of circle with a 9-meter radius and an arc of circle with a 5-meter radius; a second shovel portion contiguous with the first shovel portion and having a lateral profile extending between an arc of circle with a 9-meter radius and an arc of circle with a 1-meter radius; a third shovel portion contiguous to the second shovel portion and extending to the front tip of the ski.

대표청구항 ▼

1. A ski adapted to support a user's boot, said ski comprising: a front tip;a rear end;a central portion positioned between the front tip and the rear end;the central portion, when positioned on a planar surface, forms at least two contact lines with said planar surface, said at least two contact li

1. A ski adapted to support a user's boot, said ski comprising: a front tip;a rear end;a central portion positioned between the front tip and the rear end;the central portion, when positioned on a planar surface, forms at least two contact lines with said planar surface, said at least two contact lines comprising: a front contact line positioned closer to the front tip than to the rear end;a rear contact line positioned closer to the rear end than to the front tip;a distance separating the front contact line from the front tip being greater than 500 millimeters;a shovel extending from the front contact line to the front tip, said shovel comprising: a first shovel portion having a lateral profile contained within a space between a first pair of circular arcs, said first pair of circular arcs being a first circular arc having a radius of 5 meters and a second circular arc having a radius of 9 meters, each of said first pair of circular arcs extending through a point of the front contact line and tangent to a lateral profile of said central portion;a second shovel portion contiguous to said first shovel portion, said second shovel portion having a lateral profile contained within a space between a second pair of circular arcs, said second pair of circular arcs being a first circular arc having a radius of 1 meter and a second circular arc having a radius of 9 meters, each of said second pair of circular arcs extending through a forward end point of the lateral profile of the first shovel portion and tangent to the lateral profile of said first shovel portion. 2. A ski according to claim 1, wherein: a height corresponding to a distance between said planar surface and the ski measured at a point 300 millimeters from the front tip of the ski is comprised between 5 millimeters and 25 millimeters. 3. A ski according to claim 1, wherein: a distance between the rear contact line and the rear end of the ski is less than 300 millimeters. 4. A ski according to claim 1, wherein: the lateral profile of the first shovel portion has no flat portion; andthe lateral profile of the second shovel portion has no flat portion. 5. A ski according to claim 1, wherein: between the front tip and the front contact line, maximum width of the shovel is between 125 mm and 170 mm. 6. A ski according to claim 1, wherein: between the rear end and the rear contact line, maximum width of the tail is between 110 mm and 160 mm. 7. A ski according to claim 1, wherein: the ski has a length of 1920 mm;the shovel has a length of 730 mm. 8. A ski according to claim 1, wherein: the ski has a length of 1920 mm;the front contact line and the rear contact line are spaced apart by 1090 mm. 9. A ski according to claim 1, wherein: the shovel has a maximum width located between 440 mm and 640 mm forward of the front contact line. 10. A ski according to claim 9, wherein: the maximum width of the shovel is between 125 mm and 170 mm. 11. A ski according to claim 1, wherein: the ski has a length L extending from the front tip to the rear end;the shovel has a length DS extending from the front tip to the front contact line;a ratio DS/L is within a range between about 0.26 and about 0.38. 12. A ski according to claim 1, wherein: a boot support zone for receiving binding elements is positioned between the front and rear contact lines. 13. A ski according to claim 1, wherein: between the front and rear contact lines the ski has a camber comprising a concave curvature. 14. A ski according to claim 1, wherein: lines of maximum width of the ski comprises a front line forward of the front contact line and a rear line rearward of the rear contact line. 15. A ski adapted to support a user's boot, said ski comprising: a front tip;a rear end;a central zone positioned between the front tip and the rear end;the central zone, when positioned on a planar surface, forms at least two contact lines with said planar surface, said at least two contact lines comprising: a front contact line positioned closer to the front tip than to the rear end;a rear contact line positioned closer to the rear end than to the front tip;a distance separating the front contact line from the front tip being greater than 500 millimeters;a shovel extending from the front contact line to the front tip, said shovel having a convex zone comprising: a first shovel portion having a lateral profile having a shape of a circular arc, said circular arc having a radius with a length between 5 meters and 9 meters;a second shovel portion contiguous to said first shovel portion, said second shovel portion having a shape of a circular arc, said circular arc of said second shovel portion having a radius with a length between 1 meter and 9 meters;a third shovel portion contiguous to said second shovel portion and extending to the front tip of the ski. 16. A ski according to claim 15, wherein: the profile of the first shovel portion has no flat portion and of the profile of the second shovel portion has no flat portion. 17. A ski according to claim 15, wherein: the shovel comprises a lateral profile, said lateral profile of said shovel comprises a curve, said curve comprising said profile of said first shovel portion and said profile of said second shovel portion;for any pair of points on said curve of said lateral profile of said shovel spaced apart by a chord having a length of 150 millimeters, there is at least one point on said curve between said pair of points more than 0.5 millimeters away from said chord. 18. A ski according to claim 15, wherein: said third shovel portion has a length between 80 millimeters and 130 millimeters. 19. A ski according to claim 15, wherein: the radius of the circular arc of said second shovel portion is less than the radius of the circular arc of said first shovel portion. 20. A ski according to claim 15, wherein: the ski has a length L extending from the front tip to the rear end;the shovel has a length DS extending from the front tip to the front contact line;a ratio DS/L is within a range between about 0.26 and about 0.38. 21. A ski according to claim 15, wherein: a height corresponding to a distance between said planar surface and the ski, measured at a point 300 millimeters from the front tip of the ski, is between 5 millimeters and 25 millimeters. 22. A ski adapted to support a user's boot, said ski comprising: a front tip;a rear end;a central zone positioned between the front tip and the rear end;the central zone, when positioned on a planar surface, forms at least two contact lines with said planar surface, said at least two contact lines comprising: a front contact line positioned closer to the front tip than to the rear end;a rear contact line positioned closer to the rear end than to the front tip;a distance separating the front contact line from the front tip is greater than 500 millimeters;a shovel extending from the front contact line to the front tip, said shovel comprising: a first shovel portion having a lateral profile having a shape of a circular arc, said circular arc having a radius with a length between 5 meters and 9 meters;a second shovel portion forward of said first shovel portion, said second shovel portion having a shape of a circular arc, said circular arc of said second shovel portion having a radius with a length between 1 meter and 3 meters. 23. A ski according to claim 22, further comprising: a third shovel portion forward of said second shovel portion, said third shovel portion having a shape of a circular arc, said third shovel portion having a length between 80 millimeters and 130 millimeters. 24. A ski comprising: a front tip;a rear end;a front contact line;a rear contact line;the ski contacting a planar surface when supported on the planar surface at the front contact line and the rear contact line, while each of said front tip and said rear tip is spaced above said planar surface;from the front tip to the rear end, the ski having a length L defined by: a shovel having a length DS extending from the front tip to the front contact line;a central zone extending from the front contact line to the rear contact line;a tail extending from the rear contact line to the rear end;a ratio DS/L within a range between approximately 0.26 and approximately 0.38. 25. A ski according to claim 24, wherein: in a non-stressed state of the ski, the shovel comprises: a first shovel portion having a lateral profile having a shape of a circular arc, said circular arc having a radius with a length between 5 meters and 9 meters;a second shovel portion contiguous to said first shovel portion, said second shovel portion having a shape of a circular arc, said circular arc of said second shovel portion having a radius with a length between 1 meter and 9 meters;a third shovel portion contiguous to said second shovel portion and extending to the front tip of the ski, the third shovel portion having a shape of a circular arc, said circular arc of said third shovel portion having a radius with a length less than the length of the radius of the circular arc of said second shovel portion. 26. A ski according to claim 25, wherein: the radius of the circular arc of said second shovel portion is less than the radius of the circular arc of said first shovel portion. 27. A ski according to claim 24, wherein: in a non-stressed state of the ski, the shovel comprises: a first shovel portion having a lateral profile contained within a space between a first pair of circular arcs, said first pair of circular arcs being a first circular arc having a radius of 5 meters and a second circular arc having a radius of 9 meters, each of said first pair of circular arcs extending through a point of the front contact line and tangent to a lateral profile of said central portion;a second shovel portion contiguous to said first shovel portion, said second shovel portion having a lateral profile contained within a space between a second pair of circular arcs, said second pair of circular arcs being a first circular arc having a radius of 1 meter and a second circular arc having a radius of 9 meters, each of said second pair of circular arcs extending through a forward end point of the lateral profile of the first shovel portion and tangent to the lateral profile of said first shovel portion. 28. A ski according to claim 27, wherein: a height corresponding to a distance between said planar surface and the ski, measured at a point 300 millimeters from the front tip of the ski, is between 5 millimeters and 25 millimeters. 29. A ski comprising: a front tip;a rear end;a front contact line;a rear contact line;the ski contacting a planar surface when supported in a non-stressed state on the planar surface at the front contact line and the rear contact line, while each of said front tip and said rear tip is spaced above said planar surface;from the front tip to the rear end, the ski having a length L defined by: a shovel having a length DS extending from the front tip to the front contact line, said length being greater than 500 millimeters;a central zone extending from the front contact line to the rear contact line;a tail extending from the rear contact line to the rear end;a ratio DS/L within a range between approximately 0.26 and approximately 0.38;in a non-stressed state of the ski, the shovel comprises: a first shovel portion having a lateral profile with a radius of curvature between 5 and 9 meters and extending through a point of the front contact line and tangent to a lateral profile of said central portion;a second shovel portion contiguous to said first shovel portion, said second shovel portion having a lateral profile with a radius of curvature between 1 and 9 meters and extending through a forward end point of the lateral profile of the first shovel portion and tangent to the lateral profile of said first shovel portion. 30. A ski according to claim 29, wherein: a height corresponding to a distance between said planar surface and the ski, measured at a point 300 millimeters from the front tip of the ski, is between 5 millimeters and 25 millimeters. 31. A ski adapted to support a user's boot, said ski comprising: a front tip;a rear end;a central portion positioned between the front tip and the rear end;the central portion, when positioned on a planar surface, forms at least two contact lines with said planar surface, said at least two contact lines comprising: a front contact line positioned closer to the front tip than to the rear end;a rear contact line positioned closer to the rear end than to the front tip;a distance separating the front contact line from the front tip being greater than 500 millimeters;a bottom edge structured and arranged to come into gripping engagement with snow during edging of the ski in a turn, said bottom edge comprising a running edge extending between the front and rear contact lines;means for increasing a length of edge-gripping snow engagement as soon as the turn is initiated to be greater than the length of the running edge between the front and rear contact lines, said means comprising: lines of maximum width of the ski comprising a front line forward of the front contact line and a rear line rearward of the rear contact line;a shovel extending from the front contact line to the front tip, said shovel comprising a first shovel portion having a lateral profile between a first pair of circular arcs, said first pair of circular arcs being a first circular arc having a radius of 5 meters and a second circular arc having a radius of 9 meters, each of said first pair of circular arcs extending through a point of the front contact line and tangent to a lateral profile of said central portion;a second shovel portion contiguous to said first shovel portion, said second shovel portion having a lateral profile between a second pair of circular arcs, said second pair of circular arcs being a first circular arc having a radius of 1 meter and a second circular arc having a radius of 9 meters, each of said second pair of circular arcs extending through a forward end point of the lateral profile of the first shovel portion and tangent to the lateral profile of said first shovel portion.