# US 2013/0154237 A1 · Snowboard > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0154237 A1 - Document ID: US20130154237A1 - Status: Published application - Kind: A1 - Application number: 13/701,941 - Filed: 2011-06-07 - Published: 2013-06-20 - Earliest claimed: 2010-06-07 - Assignees: HiTurn AS - Inventors: Jorgen Karlsen - Web page: https://patentgrep.com/patent/US20130154237A1 ## CPC - A63C 5/03: Mono skis; Snowboards - A63C 5/0405: {Shape thereof when projected on a plane, e.g. sidecut, camber, rocker} - A63C 5/0422: {Longitudinal guiding grooves} - A63C 5/052: of the tips or rear ends - A63C: SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE (water skis B63B32/00, B63B34/00) ## Abstract 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. Skate plate (3) is only used where the board is to be used principally on rails and boxes in parks, and good riding characteristics also require to be retained during normal riding on the ground. Thus the solution is to integrate a plateau (3) between the ordinary sliding surface (1) and a somewhat more modest front tip (4) on the board, the point being that when riding on snow this plateau (3) should function as a part of the nose, while during active use of the plateau on rails and boxes it has a separate function as contact surface against the surface when on other snowboards the trick in question normally involves the use of the front part of the sliding surface (1). This concept can best be employed with a certain degree of regular camber between E-E and V-V. However, it may also be envisaged used in combination with boards without camber, or even reverse camber in this area. The characteristics will be further improved by exploiting the concept of a tripartite sliding surface, with the result that the steel edges are already raised on the inside of the tip(s), thereby ensuring a gentler rate of increase in the lateral sole surfaces (6) in the tip(s) and enabling the tip to glide with less resistance, particularly during turning. ## Claims ### Claim 1 A snowboard comprising a board for mounting two bindings on the board's surface at a distance apart approximately 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 in the tip a skate plate is inserted, 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 starts a few cm in front of the ordinary sliding surface, and where in an area (C) between the beginning of the skate plate and the end of the ordinary sliding surface (D) there is a shorter area where the sole surface is curved upwards, where the skate plate relative to the ordinary sole surface has an approximately straight form so that the skate plate's angle to the surface is essentially constantly 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. ### Claim 2 (depends on 1) 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. ### Claim 3 (depends on 1) 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. ### Claim 4 (depends on 1) A snowboard according to claim 1, wherein the sliding surface of the snowboard has a three-dimensional sliding surface which means that the lateral sliding surfaces and thereby also the steel edges towards the transition (E) to the tip have an increasing uplift relative to a plane defined by the central part of the sliding surface when it is pressed down against the ground, i.e. when the snowboard is lying flat and without 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 surfaces which viewed in cross section gives steel edges which are raised relative to the middle portion of the tip and far advanced forward in the tip(s). ### Claim 5 (depends on 4) A snowboard according to claim 4, wherein the 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 sliding surface towards the transition to the tips over a length which altogether at both the ends of the board forms at least 10% of the sliding surface's total length. ### Claim 6 (depends on 1) A snowboard according to claim 1, wherein the steel edges, viewed in cross section, create an increasing uplift relative to the central sole surface from the transition F between the secondary sliding surface and the tip's secondary sole surface to a cross line C located in front of F, where the uplift in C, measured in mm, is at least 25% greater than in F, preferably at least 35% and most preferred at least 50%. ### Claim 7 (depends on 1) A snowboard according to claim 1, wherein the steel edges, viewed in cross section, create an increasing uplift relative to the central sole surface from the transition E between central sliding surface and the tip's central sole surface to a cross line C located in front of E, where the uplift in C, measured in mm, is at least 10% greater than in E, preferably at least 15% and most preferred at least 20%. ### Claim 8 (depends on 1) A snowboard according to claim 1, 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. ### Claim 9 (depends on 1) A snowboard according to claim 1, 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. ### Claim 10 (depends on 1) A snowboard according to claim 1, wherein a skate plate is inserted in the tip(s), starting a few cm in front of the ordinary sliding surface, and between the beginning of skate plate (D) and the end of the ordinary sliding surface (E) there is a shorter area where the sole surface is curved upwards, while skate plate has an approximately straight form relative to the ordinary sliding surface with the result that the angle of the tip with the surface is fairly constant in the skate plate. In front of the skate plate the tips are curved further upwards in a front tip, with the result that the sole in the front tip forms an increasing angle with the surface again, viewed in the board's longitudinal direction. ### Claim 11 (depends on 1) A snowboard according to claim 1, wherein the skate plate is at least 4 cm long between B and D, preferably over 8 cm and most preferred over 12 cm long. ### Claim 12 (depends on 1) 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. ### Claim 13 (depends on 1) 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. ### Claim 14 (depends on 1) 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. ### Claim 15 (depends on 1) 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. ### Claim 16 (depends on 1) 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. ### Claim 17 (depends on 1) 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.