The present invention is based on the combination of a snowboard with a 3-dimensional sole which wholly or partly has a tripartite sliding surface in the portion between the transition to the tip(s) and the binding fastening(s), in addition to which the board is equipped with an additional special 3
The present invention is based on the combination of a snowboard with a 3-dimensional sole which wholly or partly has a tripartite sliding surface in the portion between the transition to the tip(s) and the binding fastening(s), in addition to which the board is equipped with an additional special 3-dimensional geometry in the tip(s), in order to continue the existing uplift in the lateral sliding surface (5), thereby ensuring better uplift and thus better glide and greater speed in loose snow, a combination which provides quite unique riding characteristics. The tip of the snowboard is designed in such a manner that it presses the snow under the board more efficiently, lifting it further up from the snow than an ordinary tip. When riding straight ahead, this is best accomplished by using what is called here a skate plate, with an almost straight portion in the tip, providing an extended tip at a moderate angle to the surface and thereby extremely careful treatment of the snow while keeping the tip above the snow. When turning, an improved uplift in the tip is achieved by successively increasing the angle between the central sole surface (2) and the lateral sole surface (6) in the tip from the end of the sliding surface a few cm forwards in the tip, with the result that during edging the lateral sole surface lies substantially flatter against the snow further forward in the tip than at the transition to the tip, thereby more efficiently pressing the snow under the snowboard and not to the side, thus causing the board to also glide better during turning.
대표청구항▼
1. A snowboard comprising a board for mounting two bindings on the board's surface at a distance apart corresponding to approximately ⅓ of the board's length, where the board is provided with inwardly curved edge portions, the board having greater width at both ends at the transition (E, V) to the t
1. A snowboard comprising a board for mounting two bindings on the board's surface at a distance apart corresponding to approximately ⅓ of the board's length, where the board is provided with inwardly curved edge portions, the board having greater width at both ends at the transition (E, V) to the tips than at the middle (I), wherein the tip includes a skate plat, which during normal running on snow functions as a part of the tip, but which when performing certain tricks functions as a part of a central sliding surface, where the skate plate is located a few cm in front of the ordinary sliding surface in an area (C) between a skate plate (D) and an area (B), and between the beginning of the skate plate (D) and the end of the ordinary sliding surface (E) there is a shorter area where the sole surface is curved upwards, where the skate plate (C) relative to the ordinary sole surface has an approximately straight form so that the skate plate's angle to the surface has essentially a constant rising over the skate plate, where the area (B) in front of the skate plate is curved further upwards in a front tip, with the result that the sole in the front tip creates an increasing angle with the surface again, viewed in the snowboard's longitudinal direction. 2. A snowboard according to claim 1, wherein skate plate is used on the rear half of the snowboard according to the same principles as the front part, even though the design need not be identical. 3. A snowboard according to claim 1, wherein the skate plate is at least 4 cm long between transition (B, D), preferably over 8 cm and most preferred over 12 cm long. 4. A snowboard according to claim 1, wherein the area between D and E where the board is curved upwardly between the sliding surface and skate plate is a maximum of 15 cm long, preferably shorter than 10 cm long, and most preferred shorter than 5 cm long. 5. A snowboard according to claim 1, wherein skate plate forms a mean angle of maximum 12 degrees with the sliding surface, preferably under 9 degrees and most preferred less than 6 degrees and more than 3 degrees. 6. A snowboard according to claim 1, wherein the transition (D) to skate plate starts at least 10 cm in front of the normal position of the bindings, preferably at least 15 cm and most preferred at least 20 cm, and in a corresponding fashion behind the rear binding. 7. A snowboard according to claim 1, wherein between the transitions to front tip E and rear tip V the snowboard is provided with additional sliding surfaces where the steel edges in the lateral sliding surfaces are located higher above the central sliding surface at E and possibly at V than in the middle I. 8. A snowboard according to claim 1, wherein some of the transitions (B, C, D, E, F) between the different areas of the snowboard are not perpendicular to the board's longitudinal direction, nor are they located symmetrically about the longitudinal axis. 9. A snowboard according to claim 1, wherein it is only the front tip which has a special design, and an ordinary rear tip is employed, or even a small or no rear tip. 10. A snowboard comprising a board for mounting two bindings on the board's surface at a distance apart corresponding to approximately ⅓ of the board's length, where the board is provided with inwardly curved edge portions, the board having greater width at both ends at a transition (E, V) to the tips than at the middle (I), wherein a sliding surface of the snowboard has a three-dimensional sliding surface, where the lateral sliding surfaces and thereby also steel edges towards the transition (E) to the tip have an increasing uplift relative to a plane defined by a central sliding surface when it is pressed down against the ground, i.e. when the snowboard is laying flat and without a camber, and then this geometry in the sliding surface is combined with a design of the tip(s), where the tip(s) has lateral sole surface which, when viewed in cross section, give steel edges which are raised relative to the central sole surface of the tip or a lowest part of the tip, when viewed in cross-section, and far advanced forward in the tip(s), andthe sliding surface of the snowboard has a three-dimensional sliding surface which is substantially tripartite, with a right lateral sliding surface, a central sliding surface and a left lateral sliding surface towards the transition (E, V) to the tip(s) over a length which at both the ends of the board together form at least 10% of the sliding surface's total length, andwherein the steel edges, when viewed in cross section, create an increasing uplift relative to the central sole surface (1, 2) and (3) or the lowest part of the sole surfaces, the latter representing the extension of the cross section lines of (1, 2) taken into the tip, from the transition (F) between the secondary sliding surface and the tip's lateral sole surface to a cross section (C) located in front of the transition, where the uplift in cross section (C), measured in mm, is at least 25% greater in the transition (F), preferably at least 35% and most preferred at least 50%. 11. A snowboard according to claim 10, wherein the steel edges, viewed in cross section, create an increasing uplift relative to the central sole surface from the transition between sliding surface and tip and a few cm outwards in the tip, with the result that the uplift increases at least 1% of the lateral sole surface's width, and preferably more than 2% from the transition (F) until maximum uplift in the steel edge is achieved in C. 12. A snowboard according to claim 10, wherein the tips' lateral surfaces start further in towards the board's bindings than the transition between the central sliding surface and the tip's central sole surface does in F and possibly U, so that the accelerated upward curve in the steel edge already starts a few cm earlier than the upward curve to the tip from the central sliding surface in E and possibly in V.
Perenon Jacques (Voiron FRX) Pichon Maurice (La Murette FRX) Deborde Henri C. (Bilieu Charavines FRX) Jodelet Francois (Voiron FRX), Process for the manufacture of a composite molded structure, and especially of a ski.
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