EP1960064B1 - Snowboard - Google Patents
Snowboard Download PDFInfo
- Publication number
- EP1960064B1 EP1960064B1 EP06817722A EP06817722A EP1960064B1 EP 1960064 B1 EP1960064 B1 EP 1960064B1 EP 06817722 A EP06817722 A EP 06817722A EP 06817722 A EP06817722 A EP 06817722A EP 1960064 B1 EP1960064 B1 EP 1960064B1
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- EP
- European Patent Office
- Prior art keywords
- sliding board
- snow sliding
- snow
- board
- curvature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Revoked
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C5/00—Skis or snowboards
- A63C5/12—Making thereof; Selection of particular materials
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C5/00—Skis or snowboards
- A63C5/04—Structure of the surface thereof
- A63C5/0405—Shape thereof when projected on a plane, e.g. sidecut, camber, rocker
Definitions
- the invention relates to a snow sliding board according to the preamble of the independent claims.
- skis and snowboards are often placed on one edge when cornering and, ideally, the curve is driven completely on one edge. A sideways drift across the direction of travel can thus be reduced and the curve can thus be traversed faster. From the “carving" of these tracks, the name "carving” is derived.
- the design of the tread in the top view (outline) and in the side view (side elevation) is relevant for the behavior of a snowboard.
- snowboard boards In order to make carving possible, snowboard boards have a sidecut in plan view, which in combination with the self-adjusting. Deflection gives the effectively driven radius.
- a problem of today's snow gliding boards is that although the sidecut in the floor plan is intended for carving, the side elevation has never been adapted to the new circumstances.
- the vertical curvature in the side elevation and the lateral sidecut in the floor plan of the snow gliding boards currently on the market are based on empirical findings of the manufacturers. Also, the ends, especially the blade (front end) of today's snow gliding boards are made according to traditional, never changed templates. The present forms of snow gliding boards are not optimally designed for carving, so that when driving an increased resistance arises, resulting in an unnecessary reduction in speed.
- the ski industry has been trying to optimize the equipment, but without success, because the mechanics are considered too two-dimensional.
- the skier needs the lateral outline to make a bow. He needs the tip (shovel) so that the device does not stick.
- the blade Seen in a side view, the blade typically extends vertically beyond the central region in a conventional snow gliding board. In particular, when cornering the blade forms a significant resistance due to its strong curvature and causes unwanted deceleration.
- FR2786108 (Salomon SA) shows a ski with a pointed bend, which is on the one hand particularly long and on the other hand wide.
- the length of the Spitzaufbiegung ie the distance between the foremost point of the ski and a front contact line, at which the ski touches the base for the first time, is between 300 mm and 500 mm.
- the greatest value of the width of the Spitzaufbiegung is greater than or equal to 105 mm. This is to ensure that the ski is easier to drive in powder snow without changing its driving characteristics on hard snow.
- US6986525 (Rossignol SA) according to the title refers to a snow sliding board with an adapted blade and tail curvature.
- One goal is to show a short waisted ski whose load-bearing surface is said to be enlarged compared to the prior art and which shows a more progressive behavior when the curves are introduced.
- an ISO standard 6289 is used protruding leading snowboard is pressed onto a flat surface, so that it rests in the middle area on this fed. The resulting contact area is limited by a front and a rear contact line (definition according to ISO standard 6289).
- An object of the invention is to show an improved snow sliding board, which has less resistance and better traction, especially when cornering
- a sliding surface of a snow gliding board has the following areas in side elevation seen from the front to the rear: concave Spitzaufbiegung, which forms the blade in the front region; convex leader (middle region); concave Endankbiegung, which opens in the rear area to the rear
- the middle area has a positive, upwardly sloping convex curvature, which merges in the region of the ends in concave negative curvatures
- the areas in which the sign of the curvature change are called saddle points
- the curvatures are chosen so that laid on a plane unloaded Schneegleitbrett only in the region of its concave Endkurümmache, the contact areas of the sliding surface, rests and lifts in the middle of this (bias).
- the function of the invention is not adversely affected by a geometric deviation, provided that the curvatures, their relationship to each other and the transition points (saddle points) are arranged so that the inventive kinematics ("roll effect", see below) while driving
- the curvature direction of the leader between the peripheries (blade and tail) is defined as a positive, convex curvature, and the peripheral curvatures in the area of the bucket and tail are defined as a negative, concave curvature.
- Any existing straight sections between the convex and concave areas act as a limitation of deformation in that a Schneegleitbrett can only be bent so far until they lie (both obliquely and in the flat state) along its entire edge length.
- Straight areas act in particular as a deformation limit when the curvature changes on the opposite side, eg. from concave to convex.
- Such straight portions are understood in the context of the invention described herein as positive, convex curvatures, since they behave essentially as such.
- the following elements are distinguished in the description of the boundaries of the sliding surface (viewed from front to back): pointed end, sidecut, end termination.
- pointed end For the description of the geometry of the sliding surface in the side and in the ground plan, simplified arcs or straight lines are used, as they have geometric points that are helpful for the explanation. However, instead of circular arcs and straight lines, other elements such as ellipse, clothoid, parabola, etc. may be used to define the geometry. As quadrant points (extreme points) points are called, the snowboard at the largest resp. smallest perpendicular distance to a longitudinal axis of the device.
- the pointed end and end termination begin at a forward quadrant point, respectively, at a rear quadrant point, which form the transitions to the sidecut.
- a mid-quadrant point can be found in the narrowest part of the sidecut.
- Saddle points are understood as areas in which the sign of the curvature (positive, negative, respectively convex, concave) changes. These are of particular relevance for the definition of the lateral crack of the sliding surface
- the snow sliding board when the snow sliding board is guided on an edge through a curve, it deforms elastically in the central region as a result of the loads occurring, so that the initially convex curvature becomes temporarily a concave curvature.
- the lateral sidecut and the upstand angle angle between the sliding surface and the ground when the snow sliding board is placed on the edge
- the side edge lying on the ground ideally describes a substantially circular path, which in the Ideal case corresponds to the driving curve
- the bearing areas and saddle points in the blade and tail areas are very close together, the distance between these two areas is typically only 2% to 4% of the total length of the snow gliding board.
- the saddle point often can not be determined in the sense discussed here, since the sliding surfaces between the convex and the concave portions just identify intermediate pieces, which act as a deformation limit.
- the mean radii of the end regions (blade, tail) are around 500 mm and the mean radii of the prestressing around 13,000 mm to 14,000 mm.
- the blade area (tip to landing point in unloaded condition) usually covers about 10% of the length of the snowboard so that the saddle point is around 12% to 14% of the total length.
- the support area In the rear area of the support area is about 2% to 4% and the saddle point about 4% to 5% from the end (100%) away
- the support area shifts only slightly, since the support area in the unloaded state and the saddle point very close lie together, resp. straight sections between the curvature changes prevent the deformation.
- the tip always retains approximately the same direction with respect to the ground, resp. the direction of travel.
- a highly tilted, curved tip is required so that no insertion results
- a conventional snow sliding board regardless of the deflection, always pressed in about the same area the strongest on the ground areas with strongest Edge pressure is comparatively close to the end regions.
- An idea of the invention is to achieve an optimal interaction of the physics when gliding and the mechanics of the gliding device. This goal is achieved by a deformation-dependent change, respectively, by an inventive vote of the side crack and the floor plan while driving. a shift of the high pressure along the edge in the form of a controlled rolling effect is achieved. Edge areas with high edge pressure are temporarily shifted towards the middle of the snow sliding board and the influence of the edges in the critical end areas is thereby reduced.
- Another idea of the invention is that a load-dependent modified Spitzaufbiegung when edge up (put on the edge) of the sports equipment an important role for the swing initiation, respectively. control can take over. This is not taken into account in conventional designs
- An embodiment of a snow gliding board according to the invention has a curvature transition (saddle point) between convex pretension radius and concave peripheral bends, which, compared to a conventional snow gliding board, is arranged in the longitudinal direction farther towards the center (50% of the length of the snow gliding board), so that between the contact point and the saddle point a rolling surface is formed, which allows a variable edge force distribution, especially when cornering in the folded state
- the edge region with high load temporarily towards the center of the snowboard and the critical edge areas in the inlet area are relieved.
- the Aufrollf Anlagen results in a participatedkanteten Schneegleitbrett due to the external forces acting by the Schneegleitbrett is deformed so that a "deepest edge region", which forms the relevant direction of travel contact between the edge and a substrate, due to the self-adjusting deformation along shifting the edge
- the area of the snowboard which lies in the longitudinal direction before the deepest edge area, it is practically not loaded and thus retains essentially its original shape.
- the invention has the advantage that due to the rolling effect, in particular the end portions of the snow gliding board can be made much stiffer compared to the prior art, so that less flutter and high-frequency interference occur, as they typically occur at high speeds.
- the distance between the support area and the saddle point, and the radii of the end portions are selected so that a load-dependent rolling at least one end portion is achieved.
- Rolling up here means a temporary, load-dependent lifting of the end regions as a result of a displacement of the support region relative to the longitudinal center and an associated unrolling along the concave sliding surfaces in the end regions.
- the average radii of curvature in the support area are also much larger compared to conventional snow gliding boards. In a preferred embodiment, they are about 3000 mm and are thus about 4 to 6 times larger than in a conventional snow gliding board.
- a snow gliding board result, inter alia, when traversing mountain edges, where as far as possible no changes of direction are to be made, the momentum control on the runway, in deep snow or in door runs.
- the sliding speed will generally be higher in all snow conditions and applications, as the strain resulting from the load results in an optimized sideline resulting in less resistance and reduced susceptibility to external disturbances.
- a dangerous digging of the tips in radically curved curves due to a Vor constitutes the tip is significantly reduced
- Another advantage is to facilitate handling through good-natured handling characteristics due to the changed pressure distribution along the edges, especially in the periphery.
- the tip of the snow gliding board is blunt compared to the prior art and has seen in the plan view of a central region having a radius of about 250mm or greater.
- the floor plan In the transitional area to the front quadrant points, the floor plan has a radius of about 100mm or less.
- a preferred embodiment has an average radius of about 300mm to 350mm and lateral transition radii of about 60mm to 80mm.
- the vertical elevation of the tip is around 10mm to 30mm.
- One embodiment of the invention relates to a snow gliding board having a tip, a central part and a tail and a sliding surface with a concave Spitzaufbiegung, a convex central part and a concave Endaufbiegung, wherein the concave Spitzaufbiegung in the region of a front saddle point in the convex central part of the sliding surface verb.
- the pitch in the area of the front saddle point is 2 ° to 5 ° with respect to the bearing areas in the unloaded state. Depending on the embodiment, it can take on a different value.
- the slope is about 3 °.
- the sliding surface has in the region of the pointed bend a concave roll-up surface, which allows a load-dependent displacement of the edge pressure.
- the concave rolling-up surface has a constant radius of curvature or a radius of curvature decreasing towards the front end of the snow sliding board.
- the radius of curvature of the rolling surface toward the front end of the snow gliding board is designed to decrease continuously or discontinuously at least in regions.
- the radius of curvature of the roll-up depending on the application in the range of 1000mm and 5000mm or between 2500mm and 3500mm. The radius can decrease towards the front end.
- the radius in the region of the front end is between 200mm and 400mm.
- the front bearing area is 5% to 35% with reference to the total length L of the snowboard. 8% to 20% or 9% to 14% in front of the front saddle point.
- the front support area is in the undeformed state, with respect to the total length L of the snowboard and depending on the application, between 8% and 15%, 10% and 13% of the leading edge of the snowboard, respectively.
- the anterior quadrant point is between 3% to 10%, 5% to 8% in front of the anterior support area.
- the snow sliding board can have a rolling surface in the region of the final bend.
- the invention is suitable for use in snow gliding boards in which a variable edge force distribution benefits when inflating in a flat andincikanteten Condition when cornering results, especially in snowboards, skis and monoskis.
- FIG. 1 shows an inventive Snow Gliding 1 in a front view and FIG. 2 the same snow sliding board 1 in a rear view.
- FIG. 3 shows the efindungsgemässe snow sliding 1 according to the Figures 1 and 2 in a side view ( Figure 3a) and in a plan view ( Figure 3b).
- FIG. 4 and FIG. 5 For comparison, a conventional snow sliding board 100 in a front view and in a rear view.
- Figur6 shows the conventional snow sliding 100 according to the FIGS. 4 and 5 in a side view ( Figure 6a) and in a plan view ( Figure 6b).
- the scaling of the conventional snow gliding board 100 corresponds in the illustrations for a better comparison of the length L of the inventive snow gliding board 1 according to the FIGS. 1 to 3 ,
- FIG. 1 The snow sliding board 1 has a sliding surface 10 with a concave Spitzaufbiegung 21, a convex central portion 22 and a concave Endetzbiegung 23, wherein the concave Spitzaufbiegung 21 in the region of a front Saddle point 6 opens into the convex middle part 22 of the sliding surface 10.
- the sliding surface 10 has in the region of the pointed bend 21 a concave roll-up surface 17, which allows a load-dependent displacement of the edge pressure.
- a device longitudinal axis 20 (x-axis) is schematically drawn
- the invention disclosed here makes it possible to design the tip 8 very flat if necessary, and thus streamlined. It is noticeable that in the embodiment shown, the tip 8 of the front view according to FIG. 1 in the undeformed state in a silhouette does not protrude beyond the convex central region 13 As seen from the top view FIG. 3 can be seen, lies in the illustrated embodiment 11% total length L of the snow gliding board and the front quadrant point 3 with the front maximum width B1 at about 4.5% of the total length L from the side view of FIG. 3 It can be seen that the rear support area 4 is approximately 96% of the total length L and the rear quadrant point 5 with the rear maximum width B2 is approximately 98% of the total length L.
- the front saddle point 6 is in the embodiment shown at about 18% and the rear saddle point 7 at about 90% of the total length L.
- the front saddle point 6 is therefore with reference to the total length L about 7% from the support area 2 and the rear support area. 4 about 6% of the rear saddle point 7
- the slope is in the front saddle point about 3 ° with respect to the support points 2, 4.
- the area between the support area 2 and the front saddle point 6 serves as Aufroll Chemistry 17 along the support area at a load in Direction of the front saddle point 6 shifts the areas 3, 5 with the maximum widths B1 and B2 are front around 13.5% and rear around 8% from the nearest saddle point 6, 7 away.
- FIG. 6 is in a conventional snow sliding the front support portion 102 in the unloaded state at about 11% total length L of the snow gliding board and the area 103 with the front maximum width B3 at about 7.6% of the total length L from the side view of FIG. 6 It can be seen that the rear support area 104 and the area 105 with the rear maximum width B4 are approximately 98% of the total length L.
- the front saddle point 106 is shown in the.
- Embodiment at about 12% and the rear saddle point 107 at about 96% of the total length L The front saddle point 106 is therefore approximately 1% of the support area 102 with respect to the total length L and the rear support area 104 is about 2% away from the rear saddle point 7 ,
- the areas 103, 105 with the maximum widths B3 and B4 are about 4.4% at the front and about 2% at the rear from the nearest saddle point 106, 107.
- the mean radius R1 of the snow gliding board according to the invention FIG. 3 is in the front bearing area 2 of the top 8 and the front saddle point 6 around 3000mm and decreases to the front end down to about 400mm.
- the radius R2 in the rear support area 5 is approximately 1200mm.
- the sliding surface 10, viewed from the side (side elevation) in the convex pretensioning region 11, has an average radius R3 of approximately 15,000 mm.
- R2 and the curvature drawn far to the rear (distance support area 2, 5) suitable to serve as a virtual rolling surface along which the support area is temporarily displaced depending on the state of deformation back, resp.
- Front boundaries form the saddle points 6, 7.
- the snow sliding board in plan has a waist radius of about 20,000 mm, which decreases in the embodiment shown in the region of the front maximum width B1 to 13,000 mm.
- the radius is approximately 16,000 mm.
- the comparatively blunt-shaped tip 8 has a radius of approximately 350 mm in the center in the center, which decreases to approximately 80 mm in the corner regions 11, 12.
- the rear end of the illustrated embodiment of FIG Snow sliding board 1 according to the invention is substantially straight in this case.
- the radii in the area after the rear maximum width B2 are here around 100mm.
- FIG. 7 schematically shows the two Schneegleitbretter 1, 101 according to the FIGS. 1 to 6 when cornering: Both Schneegleitbretter 1, 101 pass through a curved path b1, respectively. b2 with the same radius in direction x.
- the Schneegleitbretter 1, 101 are shown in a bent state, as he adjusts approximately at a corresponding edge against the ground by a Aufkantwinkel ⁇ .
- the tip 8 is raised due to the Aufrollffektes (schematically represented by arrow z1) by a rotation-related deformation by the tip 8 rotates about the rearwardly displaced support area 16, which on the one hand results in a reduction of the edge pressure in this critical foremost area and on the other hand allows a load-dependent "pre-gripping" of the tip in the direction of the curved path b1 to be traveled.
- FIG. 8 shows the two Schneegleitbretter 1, 101 according to FIG. 7 in a side view (y-direction) in the road plane (simplified as xy plane shown).
- a snow sliding board 1 in such a way that at an identical overall length L (see. Figures 3 , resp. 6), the effective length W1 of the side edge 14 can be made much longer.
- the difference dw of the effective edge sounds W1 of the side edge 14, compared to the effective edge length W2 of the side edge 114 of the conventionally designed snow gliding board 101 is about 4% to 5% (relative to the total length L of the snow gliding board).
- FIG. 9 shows the inventive and the conventional snow sliding 1, 101 in a side view in the plane of Schneegleitbretter.
- the curved paths b1, b2 to be traveled are shown schematically and are located in the roadway plane. Due to the Aufkantwinkels ⁇ (see. FIG. 7 ) is only a projection of the curved paths b1, b2 visible.
- the FIGS. 10 and 11 show an enlarged view of the details G and H FIG. 9 ,
- FIG. 10 schematically shows the profile of the sliding surface 113 of a conventional snow gliding board 1 in a side view and FIG. 11 the course of the sliding surface 13 of an inventive snow gliding boards 1 in a side view
- the sliding surfaces 13, 113 are shown schematically in a deformed state
- the curves shown are due to the researcherkanteten arrangement as a projection of the effectively driven curve b1, b2 to understand.
- the tip 8 (see FIG. FIG. 11 ) of the inventively designed snow gliding board 1 substantially flatter than the tip 108 of the conventional Schneegleitbrettes 101.
- snow sliding board 1 Due to the very large negative curvature at the periphery of the invention snow sliding board 1 is very gently flowed in contrast to a conventional snow gliding 101 results in less resistance. Since the contact pressure at the front in the tip 8 can build up over a longer distance, the air is displaced less quickly. As a result, more air will pass under the sliding surface 13, which in turn can have a positive effect on the speed.
- FIGS. 12 to 22 show eleven embodiments of snow gliding boards - skis and snowboards - based on diagrams.
- a plan (top view according to FIG. 3 b) and a side elevation of the sliding surface 22 (view from the side according to FIG. 3 a) can be seen.
- the snow gliding boards shown in the diagrams are real geometries and accordingly exact data.
- the length (X-axis) is scaled to 100% to accommodate different lengths, or different. To compare snow gliding boards better with each other. For the considerations made here, the effective length is of secondary importance. It depends much more on the prevailing conditions.
- the y-axis of the diagram shows the width in the case of the plan (real y-direction) and the height of the snowboard in the case of the lateral crack (real z-axis).
- the width and height (header) may also vary, they are shown in the picture FIGS. 12 to 22 scaled to millimeters [mm]. It goes without saying that the description of the driving characteristics also depends primarily on the ratios and relative sizes and less on the effective values. The dimensions can therefore deviate from the values shown without adversely affecting the properties.
- the base and side cracks are composed of radii, in particular in the region of at least one saddle point.
- the saddle points curvature change
- the Gleit perennialsradien RS take usually relatively more than the Taill réellesradien RG. This can be seen from the fact that the curve of the Gleit perennialradien RS tends to be steeper on average than the curve of the Taill réellesradien RG. Also, the radii are the Gleit perennialradien RS to the saddle points 24, 2.5 of the plan out tends to be smaller than the Taill réellesradien.
- the Taillianssradien RG also have in the convex central part between the saddle points 6, 7 of the sliding surface 10 (see. FIG. 3 ) the largest mean waist radius.
- the waist radii in the middle area are larger, equal to or smaller than the gliding surface radii.
- the front Abkipp Club RV is with respect to the total length L of the snowboard of -5% up to 20% farther from the top (0%) than the front saddle point 6 of the sliding surface radii RS (negative values are outside the range between saddle points 6, 7).
- the dump area RH is also -5 to 20% from the rear saddle point 7 with respect to the total length.
- FIG. 23 schematically shows the course of Gleit perennial radiaten RS and FIG. 24 the course of the Taill istsradien RG in the area of the front Aufroll lake 17 (top to saddle point 6) of the snow gliding boards according to Table 1 and the FIGS. 12 to 22 (see. FIG. 3 ).
- the x-axis is scaled to 100% length of the respective snowboard.
- the y-axis shows the radius in millimeters. It can be seen that the radii increase in some areas. Fluctuations can result from measured values.
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Road Paving Structures (AREA)
Abstract
Description
Die Erfindung betrifft ein Schneegleitbrett gemäss dem Oberbegriff der unabhängigen Patentansprüche.The invention relates to a snow sliding board according to the preamble of the independent claims.
Seit dem Anfang des alpinen Skisports anfangs des zwanzigsten Jahrhunderts wurden die ursprünglich verwendeten einfachen Holzlatten kontinuierlich weiterentwickelt, verbessert und perfektionier. Im Unterschied zu früher werden Skier und Snowboards (fortan Schneegleitbretter) heute bei Kurvenfahrten häufig auf eine Kante gestellt und die Kurve im Idealfall vollständig auf einer Kante gefahren. Ein seitliches Abdriften quer zur Fahrtrichtung kann damit verringert und die Kurve damit schneller durchfahren werden. Vom "Einschnitzen" dieser Spuren leitet sich auch der Name "Carven" ab.Since the beginning of alpine skiing at the beginning of the twentieth century, the original wooden battens used in the past have been continuously developed, improved and perfected. Unlike in the past, skis and snowboards (henceforth snow gliding boards) are often placed on one edge when cornering and, ideally, the curve is driven completely on one edge. A sideways drift across the direction of travel can thus be reduced and the curve can thus be traversed faster. From the "carving" of these tracks, the name "carving" is derived.
Für das Verhalten eines Schneegleitbrettes ist neben den Materialparametern und dem Dickenverlauf massgeblich die Gestaltung der Lauffläche in der Draufsicht (Grundriss; Outline) und in der Seitenansicht (Seitenriss) relevant. Damit Carven möglich ist, weisen Schneegleitbretter im Grundriss eine Taillierung auf, die in Kombination mit der sich einstellenden. Durchbiegung den effektiv gefahrenen Radius ergibt. Ein Problem heutiger Schneegleitbretter besteht darin, dass die Taillierung im Grundriss zwar fürs Carven vorgesehen ist, der Seitenriss jedoch nie den neuen Begebenheiten angepasst wurde.In addition to the material parameters and the thickness profile, the design of the tread in the top view (outline) and in the side view (side elevation) is relevant for the behavior of a snowboard. In order to make carving possible, snowboard boards have a sidecut in plan view, which in combination with the self-adjusting. Deflection gives the effectively driven radius. A problem of today's snow gliding boards is that although the sidecut in the floor plan is intended for carving, the side elevation has never been adapted to the new circumstances.
Die vertikale Krümmung im Seitenriss und die seitliche Taillierung im Grundriss der sich heu te auf dem Markt befindlichen Schneegleitbretter basieren auf empirischen Erkenntnissen der Hersteller. Ebenfalls werden die Enden, insbesondere die Schaufel (vorderes Ende) der heutigen Schneegleitbretter nach althergebrachten, nie veränderten Vorlagen hergestellt Die heutigen Formen der Schneegleitbretter sind fürs Carven nicht optimal ausgestaltet, so dass beim Fahren ein erhöhter Widerstand entsteht, der in einer unnötigen Reduktion der Geschwindigkeit resultiert.The vertical curvature in the side elevation and the lateral sidecut in the floor plan of the snow gliding boards currently on the market are based on empirical findings of the manufacturers. Also, the ends, especially the blade (front end) of today's snow gliding boards are made according to traditional, never changed templates. The present forms of snow gliding boards are not optimally designed for carving, so that when driving an increased resistance arises, resulting in an unnecessary reduction in speed.
Seit Jahrzehnten versucht die Skiindustrie die Geräte zu optimieren, jedoch ohne durchbrechenden Erfolg, da die Mechanik zu zweidimensional betrachtet wird. Der Skibauer braucht die seitliche Form (Outline) im Grundriss, um einen Bogen zu machen. Den Spitz (Schaufel) braucht er, damit das Gerät nicht einsteckt. In einer Seitenansicht gesehen ragt die Schaufel bei einem konventionellen Schneegleitbrett typischer Weise vertikal über den mittleren Bereich hinaus. Insbesondere bei Kurvenfahrten bildet die Schaufel infolge ihrer starken Krümmung einen erheblichen Widerstand und bewirkt ein ungewolltes Abbremsen.For decades, the ski industry has been trying to optimize the equipment, but without success, because the mechanics are considered too two-dimensional. The skier needs the lateral outline to make a bow. He needs the tip (shovel) so that the device does not stick. Seen in a side view, the blade typically extends vertically beyond the central region in a conventional snow gliding board. In particular, when cornering the blade forms a significant resistance due to its strong curvature and causes unwanted deceleration.
Eine Aufgabe der Erfindung besteht darin ein verbessertes Schneegleitbrett zu zeigen, das insbesondere bei Kurvenfahrten weniger Widerstand und eine bessere Traktion aufweistAn object of the invention is to show an improved snow sliding board, which has less resistance and better traction, especially when cornering
Die Aufgabe wird durch die in den unabhängigen Patentansprüchen definierte Erfindung gelöst.The object is achieved by the invention defined in the independent claims.
Eine Gleitfläche eines Schneegleitbrettes weist im Seitenriss von vorne nach hinten gesehen folgende Bereiche auf: Konkave Spitzaufbiegung, welche im vorderen Bereich die Schaufel bildet; konvexer Vorspann (mittlerer Bereich); konkave Endaufbiegung, welche im hinteren Bereich ins Heck mündet Der mittlere Bereich weist eine positive, nach oben neigende konvexe Krümmung auf, welche im Bereich der Enden in konkave negative Krümmungen übergeht Die Bereiche in denen das Vorzeichen der Krümmung wechselt, werden als Sattelpunkte bezeichnet Die Krümmungen sind so gewählt, dass ein auf eine Ebene gelegtes unbelastetes Schneegleitbrett nur im Bereich seiner konkaven Endkrümmungen, den Auflagebereichen der Gleitfläche, aufliegt und im mittleren Bereich von dieser abhebt (Vorspannung). In einem gewissen Bereich wird die Funktion der Erfindung durch eine Geometrieabweichung nicht negativ beeinflusst, sofern die Krümmungen, deren Verhältnis zueinander und die Übergangspunkte (Sattelpunkte) so angeordnet sind, dass sich die erfindungsgemässe Kinematik ("Rolleffekt", vgl. weiter unten) beim Fahren einstellt Die Krümmungsrichtung des Vorspannes zwischen den Peripherien (Schaufel und Heck) wird als eine positive, konvexe Krümmung und die Peripheriekrümmungen im Bereich der Schaufel und des Hecks werden als negative, konkave Krümmung definiert. Allfällige vorhandene gerade Abschnitte zwischen den konvexen und konkaven Bereichen wirken in gewisser Weise als Deformationsbegrenzung, indem ein Schneegleitbrett nur soweit durchgebogen werden kann, bis diese (sowohl im schräg gestellten als auch im flachen Zustand) entlang ihrer ganzen Kantenlänge aufliegen. Gerade Bereiche wirken insbesondere dann als Deformationsbegrenzung wenn die Krümmung auf der gegenüberliegenden Seite wechselt, zB. von konkav nach konvex. Solche geraden Bereiche werden im Zusammenhang mit der hier beschriebenen Erfindung als positive, konvexe Krümmungen verstanden, da sie sich im Wesentlichen wie solche verhalten.A sliding surface of a snow gliding board has the following areas in side elevation seen from the front to the rear: concave Spitzaufbiegung, which forms the blade in the front region; convex leader (middle region); concave Endaufbiegung, which opens in the rear area to the rear The middle area has a positive, upwardly sloping convex curvature, which merges in the region of the ends in concave negative curvatures The areas in which the sign of the curvature change are called saddle points The curvatures are chosen so that laid on a plane unloaded Schneegleitbrett only in the region of its concave Endkurümmungen, the contact areas of the sliding surface, rests and lifts in the middle of this (bias). In a certain range, the function of the invention is not adversely affected by a geometric deviation, provided that the curvatures, their relationship to each other and the transition points (saddle points) are arranged so that the inventive kinematics ("roll effect", see below) while driving The curvature direction of the leader between the peripheries (blade and tail) is defined as a positive, convex curvature, and the peripheral curvatures in the area of the bucket and tail are defined as a negative, concave curvature. Any existing straight sections between the convex and concave areas act as a limitation of deformation in that a Schneegleitbrett can only be bent so far until they lie (both obliquely and in the flat state) along its entire edge length. Straight areas act in particular as a deformation limit when the curvature changes on the opposite side, eg. from concave to convex. Such straight portions are understood in the context of the invention described herein as positive, convex curvatures, since they behave essentially as such.
Im Grundriss werden bei der Beschreibung der Begrenzungen der Gleitfläche folgende Elemente unterschieden (von vorne nach hinten gesehen): Spitzabschluss, Taillierung, Endabschluss. Sowohl für die Beschreibung der Geometrie der Gleitfläche im Seiten- und im Grundriss werden vereinfacht Kreisbogen oder Geraden verwendet, da diese geometrische Punkte aufweisen, die für die Erläuterung hilfreich sind. Anstelle von Kreisbogen und Geraden können jedoch auch andere Elemente wie Ellipse, Klothoid, Parabel usw. zur Definition der Geometrie verwendet werden können. Als Quadrantenpunkte (Extrempunkte) werden Punkte bezeichnet, die am Schneegleitbrett den grössten resp. kleinsten rechtwinkligen Abstand zu einer Gerätelängsachse aufweise. Der Spitzabschluss und der Endabschluss beginnen zum Beispiel an einem vorderen, respektive an einem hinteren Quadrantenpunkt, welche die Übergänge zur Taillierung bilden. Ein mittlerer Quadrantenpunkt ist im schmalsten Bereich der Taillierung zu finden. Als Sattelpunkte werden Bereiche verstanden, in denen das Vorzeichen der Krümmung (positiv, negativ, resp. konvex, konkav) wechselt Diese sind insbesondere für die Definition des Seitenrisses der Gleitfläche von besonderer RelevanzIn the ground plan, the following elements are distinguished in the description of the boundaries of the sliding surface (viewed from front to back): pointed end, sidecut, end termination. For the description of the geometry of the sliding surface in the side and in the ground plan, simplified arcs or straight lines are used, as they have geometric points that are helpful for the explanation. However, instead of circular arcs and straight lines, other elements such as ellipse, clothoid, parabola, etc. may be used to define the geometry. As quadrant points (extreme points) points are called, the snowboard at the largest resp. smallest perpendicular distance to a longitudinal axis of the device. For example, the pointed end and end termination begin at a forward quadrant point, respectively, at a rear quadrant point, which form the transitions to the sidecut. A mid-quadrant point can be found in the narrowest part of the sidecut. Saddle points are understood as areas in which the sign of the curvature (positive, negative, respectively convex, concave) changes. These are of particular relevance for the definition of the lateral crack of the sliding surface
Beim Carven, wenn das Schneegleitbrett auf eine Kante gestellt durch eine Kurve geleitet wird, deformiert es sich im mittleren Bereich infolge der auftretenden Belastungen elastisch, so dass aus der ursprünglich konvexen Krümmung temporär eine konkave Krümmung wird. Als Überlagerung des sich infolge der Belastung einstellenden Deformationszustandes, der seitlichen Taillierung und dem Aufkantwinkel (Winkel zwischen der Gleitfläche und dem Untergrund wenn das Schneegleitbrett auf die Kante gestellt ist) beschreibt die auf dem Untergrund aufliegende Seitenkante im Idealfall eine im Wesentlichen kreisförmige Bahn, die im Idealfall der zu fahrenden Kurve entsprichtDuring carving, when the snow sliding board is guided on an edge through a curve, it deforms elastically in the central region as a result of the loads occurring, so that the initially convex curvature becomes temporarily a concave curvature. As a superimposition of the deformation state resulting from the load, the lateral sidecut and the upstand angle (angle between the sliding surface and the ground when the snow sliding board is placed on the edge), the side edge lying on the ground ideally describes a substantially circular path, which in the Ideal case corresponds to the driving curve
Bei den heute auf dem Markt erhältlichen Schneegleitbrettern liegen die Auflagebereiche und die Sattelpunkte im Schaufel- und im Heckbereich sehr nahe zusammen, der Abstand zwischen diesen beiden Bereichen beträgt typischer Weise nur 2% bis 4% der Gesamtlänge des Schneegleitbrettes. Ebenfalls kann der Sattelpunkt häufig gar nicht im hier diskutierten Sinn bestimmt werden, da die Gleitflächen zwischen den konvexen und den konkaven Bereichen gerade Zwischenstücke ausweisen, die als Deformationsbegrenzung wirken. Die mittleren Radien der Endbereiche (Schaufel, Heck) betragen rund 500mm und die mittleren Radien der Vorspannung rund 13'000 mm bis 14'000 mm. Der Schaufelbereich (Spitze bis Auflagestelle im unbelasteten Zustand) erstreckt sich in der Regel über rund 10% der Länge des Schneegleitbrettes, so dass der Sattelpunkt bei rund 12% bis 14% der Gesamtlänge liegt Durch die grosse Länge der Spitze reduziert sich die wirksame Kantenlänge. Im Heckbereich ist der Auflagebereich rund 2% bis 4% und der Sattelpunkt rund 4% bis 5% vom Ende (100%) entfernt Beim Durchbiegen eines herkömmlichen Snowboards verschiebt sich der Auflagebereich nur wenig, da der Auflagebereich im unbelasteten Zustand und der Sattelpunkt sehr nahe zusammen liegen, resp. gerade Abschnitte zwischen den Krümmungswechseln die Deformation verhindern. Dadurch behält die Spitze immer ungefähr dieselbe Richtung mit Bezugnahme auf den Untergrund, resp. die Fahrrichtung. Eine stark nach oben neigende, gekrümmte Spitze ist erforderlich, damit kein Einstecken resultiert Da der Auflagepunkt und der Sattelpunkt sehr nahe zusammen liegen wird ein herkömmliches Schneegleitbrett, unabhängig von der Durchbiegung, immer in etwa im selben Bereich am stärksten auf den Untergrund gepresst Bereiche mit stärkster Kantenpressung liegen dabei vergleichsweise nahe bei den Endbereichen. Wie es sich gezeigt hat, wirkt sich dieser Umstand negativ auf den Fahrkomfort und die Beherrschbarkeit aus. Infolge des hohen Kantendrucks im Einlaufbereich der Kanten, haben Störungen z.B. in Form von Fahrbahnunebenheiten einen erheblichen Einfluss auf die Laufruhe und Spurtreue.In the case of the snow gliding boards available on the market today, the bearing areas and saddle points in the blade and tail areas are very close together, the distance between these two areas is typically only 2% to 4% of the total length of the snow gliding board. Also, the saddle point often can not be determined in the sense discussed here, since the sliding surfaces between the convex and the concave portions just identify intermediate pieces, which act as a deformation limit. The mean radii of the end regions (blade, tail) are around 500 mm and the mean radii of the prestressing around 13,000 mm to 14,000 mm. The blade area (tip to landing point in unloaded condition) usually covers about 10% of the length of the snowboard so that the saddle point is around 12% to 14% of the total length. In the rear area of the support area is about 2% to 4% and the saddle point about 4% to 5% from the end (100%) away When bending a conventional snowboard, the support area shifts only slightly, since the support area in the unloaded state and the saddle point very close lie together, resp. straight sections between the curvature changes prevent the deformation. As a result, the tip always retains approximately the same direction with respect to the ground, resp. the direction of travel. A highly tilted, curved tip is required so that no insertion results Since the support point and the saddle point are very close together, a conventional snow sliding board, regardless of the deflection, always pressed in about the same area the strongest on the ground areas with strongest Edge pressure is comparatively close to the end regions. As it has been shown, this circumstance has a negative effect on driving comfort and controllability. As a result of the high edge pressure in the inlet area of the edges, disturbances, for example in the form of uneven road surfaces, have a considerable influence on the running smoothness and directional stability.
Ein Gedanke der Erfindung besteht darin ein optimales Zusammenspiel der Physik beim Gleiten und der Mechanik des Gleitgerätes zu erzielen. Dieses Ziel wird erreicht, indem durch eine erfindungsgemässe Abstimmung des Seitenrisses und des Grundrisses beim Fahren eine deformationsabhängige Veränderung, resp. eine Verlagerung des hohen Drucks entlang der Kante in Form eines kontrollierten Rolleffektes erreicht wird. Kantenbereiche mit hohem Kantendruck werden dabei temporär gezielt zur Mitte des Schneegleitbrettes hin verschoben und der Einfluss der Kanten in den kritischen Endbereichen dadurch gezielt reduziert. Ein weiterer Gedanke der Erfindung besteht darin, dass eine belastungsabhängige veränderte Spitzaufbiegung beim Aufkanten (auf die Kante stellen) des Sportgerätes eine bedeutende Rolle für die Schwungeinleitung, resp. -steuerung übernehmen kann. Dies wird bei herkömmlichen Konstruktionen nicht berücksichtigtAn idea of the invention is to achieve an optimal interaction of the physics when gliding and the mechanics of the gliding device. This goal is achieved by a deformation-dependent change, respectively, by an inventive vote of the side crack and the floor plan while driving. a shift of the high pressure along the edge in the form of a controlled rolling effect is achieved. Edge areas with high edge pressure are temporarily shifted towards the middle of the snow sliding board and the influence of the edges in the critical end areas is thereby reduced. Another idea of the invention is that a load-dependent modified Spitzaufbiegung when edge up (put on the edge) of the sports equipment an important role for the swing initiation, respectively. control can take over. This is not taken into account in conventional designs
Eine Ausführungsform eines erfindungsgemässen Schneegleitbrettes weist einen Krümmungsübergang (Sattelpunkt) zwischen konvexem Vorspannradius und konkaver Peripherieaufbiegungen auf, der, gegenüber einem herkömmlichen Schneegleitbrett, in Längsrichtung gesehen weiter zur Mitte (50% der Länge des Schneegleitbrettes) hin angeordnet ist, so dass zwischen dem Auflagepunkt und dem Sattelpunkt eine Aufrollfläche gebildet wird, die eine variable Kantenkraftverteilung insbesondere bei Kurvenfahrten im aufgekanteten Zustand ermöglicht Im Zusammenspiel mit der seitlichen Taillierung (Grundriss), resp. den Taillierungsradien, des Schneegleitbrettes und der sich einstellenden Deformation während dem Carven verschiebt sich, im Unterschied zum Stand der Technik, der Kantenbereich mit hoher Belastung temporär zur Mitte des Schneegleitbrettes hin und die kritischen Kantenbereiche im Einlaufbereich werden entlastet. Infolge der weiter mittig angreifenden Kräfte kann es je nach Ausführungsform soweit kommen, dass die vordersten fahraktiven Kantenbereiche im Einlaufbereich zeitweise vom Untergrund abheben, da die Spitze in Richtung der zu fahrenden Kurve deformiert wird, was in einem vorteilhaften Vorgreifen und Einleiten des Schwungs resultiert Bei gewissen Ausführungsformen wird dieser Effekt unterstützt, wenn der Krümmungsradius der Aufrollfläche zur Spitze des Schneegleitbrettes hin kleiner wird. Der Aufrolleffekt ergibt sich bei einem aufgekanteten Schneegleitbrett infolge der wirkenden äusseren Kräfte, indem das Schneegleitbrett so deformiert wird, dass ein "tiefster Kantenbereich", welcher den für die Fahrrichtung relevanten Kontakt zwischen der Kante und einem Untergrund bildet, infolge der sich einstellenden Deformation, entlang der Kante verschiebt Der Bereich des Snowboards, der in Längsrichtung gesehen vor dem tiefsten Kantenbereich liegt, wird dabei praktisch nicht belastet und behält so im Wesentlichen seine ursprüngliche Form. Die Erfindung weist den Vorteil auf, dass aufgrund des Rolleffektes insbesondere die Endbereiche des Schneegleitbrettes im Vergleich zum Stand der Technik wesentlich steifer ausgebildet werden können, so dass weniger Flattern und hochfrequente Störungen auftreten, wie sie typischer Weise bei hohen Geschwindigkeiten in Erscheinung treten.An embodiment of a snow gliding board according to the invention has a curvature transition (saddle point) between convex pretension radius and concave peripheral bends, which, compared to a conventional snow gliding board, is arranged in the longitudinal direction farther towards the center (50% of the length of the snow gliding board), so that between the contact point and the saddle point a rolling surface is formed, which allows a variable edge force distribution, especially when cornering in the folded state In conjunction with the lateral sidecut (floor plan), resp. the Taillierungsradien, the Schneegleitbrettes and the self-adjusting deformation during carving shifts, in contrast to the prior art, the edge region with high load temporarily towards the center of the snowboard and the critical edge areas in the inlet area are relieved. As a result of the forces acting further in the center, depending on the embodiment, it can come to the point where the foremost active edge regions in the inlet region temporarily lift off the ground, since the tip is deformed in the direction of the curve to be traveled, resulting in an advantageous anticipation and introduction of the momentum In embodiments, this effect is supported when the radius of curvature of the rolling surface becomes smaller toward the tip of the snow sliding board. The Aufrollffekt results in a aufgekanteten Schneegleitbrett due to the external forces acting by the Schneegleitbrett is deformed so that a "deepest edge region", which forms the relevant direction of travel contact between the edge and a substrate, due to the self-adjusting deformation along shifting the edge The area of the snowboard, which lies in the longitudinal direction before the deepest edge area, it is practically not loaded and thus retains essentially its original shape. The invention has the advantage that due to the rolling effect, in particular the end portions of the snow gliding board can be made much stiffer compared to the prior art, so that less flutter and high-frequency interference occur, as they typically occur at high speeds.
Der Abstand zwischen dem Auflagebereich und dem Sattelpunkt, sowie die Radien der Endbereiche werden so gewählt, dass ein belastungsabhängiges Aufrollen zumindest eines Endbereichs erzielt wird. Unter Aufrollen wird hier ein temporäres, belastungsabhängiges Anheben der Endbereiche infolge einer Verschiebung des Auflagebereichs zur Längsmitte und einem damit verbundenen Abrollen entlang der konkaven Gleitflächen in den Endbereichen verstanden. Durch diesen Aufrolleffekt werden bei einer mittigen Belastung ein kontrolliertes Entlasten und eine gewisse Richtungsänderung der Peripheriebereiche insbesondere beim Kurvenfahren bewirkt. Im unbelasteten Zustand beträgt der Abstand zwischen den Auflagebereichen und den Sattelpunkten im Schaufel- und im Heckbereich rund 8% bis 20% der gesamten Länge des Schneegleitbrettes. Die mittleren Krümmungsradien im Auflagebereich sind zudem im Vergleich zu herkömmlichen Schneegleitbrettern wesentlich grösser gewählt. In einer bevorzugten Ausführungsform betragen sie rund 3000 mm und sind damit ca. 4- bis 6-mal grösser als bei einem konventionellen Schneegleitbrett Durch die erfindungsgemässe Ausgestaltung wird erreicht, dass sich der Auflagebereich bei einer Belastung bis zum Sattelpunkt in Richtung der Mitte des Schneegleitbrettes hin verschiebt und die Spitze, resp. das Heck unter Belastung kontrolliert angehoben werden. Dieser Effekt tritt auch bei Kurvenfahrten auf, wenn das Schneegleitbrett auf eine Kante gestellt ist, indem durch das kontrollierte Anheben der Spitze des Schneegleitbrettes der Schwung sanfter eingeleitet wird.The distance between the support area and the saddle point, and the radii of the end portions are selected so that a load-dependent rolling at least one end portion is achieved. Rolling up here means a temporary, load-dependent lifting of the end regions as a result of a displacement of the support region relative to the longitudinal center and an associated unrolling along the concave sliding surfaces in the end regions. By this Aufrollffekt a controlled unloading and a certain change in direction of the peripheral areas are particularly effected when cornering at a central load. In the unloaded condition the distance between the support areas and the saddle points in the blade and in the tail area amounts to approximately 8% to 20% of the entire length of the snow gliding board. The average radii of curvature in the support area are also much larger compared to conventional snow gliding boards. In a preferred embodiment, they are about 3000 mm and are thus about 4 to 6 times larger than in a conventional snow gliding board. By the embodiment according to the invention it is achieved that the support area under a load shifts to the saddle point in the direction of the middle of the snow sliding board and the tip, resp. the stern can be lifted under load under control. This effect also occurs when cornering when the snow sliding board is placed on an edge, by gently introducing the momentum through the controlled lifting of the tip of the snow sliding board.
Vorteile eines erfindungsgemässen Schneegleitbrettes ergeben sich unter anderem beim Traversieren von Bergkanten, wo möglichst keine Richtungsänderungen gemacht werden sollen, der Schwungsteuerung auf der Piste, im Tiefschnee oder bei Torläufen. Die Geschwindigkeit beim Gleiten wird grundsätzlich höher sein in allen Schneebedingungen und Anwendungen, da die sich aus der infolge der Belastung einstellenden Deformation eine optimierte Seitenlinie ergibt, die in einem geringeren Widerstand und einer reduzierten Anfälligkeit von äusseren Störungen resultiert. Ebenfalls wird ein gefährliches Eingraben der Spitzen bei radikal gecarften Kurven infolge eines Vorgreifens der Spitze deutlich reduziert Ein weiterer Vorteil besteht in einer Erleichterung des Handlings durch gutmütige Fahreigenschaften infolge der veränderten Druckverteilung entlang der Kanten, vor allem im Peripheriebereich.Advantages of a snow gliding board according to the invention result, inter alia, when traversing mountain edges, where as far as possible no changes of direction are to be made, the momentum control on the runway, in deep snow or in door runs. The sliding speed will generally be higher in all snow conditions and applications, as the strain resulting from the load results in an optimized sideline resulting in less resistance and reduced susceptibility to external disturbances. Also, a dangerous digging of the tips in radically curved curves due to a Vorgreifens the tip is significantly reduced Another advantage is to facilitate handling through good-natured handling characteristics due to the changed pressure distribution along the edges, especially in the periphery.
In einer Ausführungsform ist die Spitze des Schneegleitbrettes im Vergleich zum Stand der Technik stumpf ausgebildet und weist im Grundriss gesehen einen mittleren Bereich mit auf, der einen Radius von ca. 250mm oder grösser aufweist. Im Übergangsbereich zu den vorderen Quadrantenpunkten hin weist der Grundriss einen Radius von rund 100mm oder weniger auf. Eine bevorzugte Ausführungsform weist einen mittleren Radius von rund 300mm bis 350mm und seitliche Übergangsradien von rund 60mm bis 80mm auf. Die vertikale Erhebung der Spitze beträgt rund 10mm bis 30mm.In one embodiment, the tip of the snow gliding board is blunt compared to the prior art and has seen in the plan view of a central region having a radius of about 250mm or greater. In the transitional area to the front quadrant points, the floor plan has a radius of about 100mm or less. A preferred embodiment has an average radius of about 300mm to 350mm and lateral transition radii of about 60mm to 80mm. The vertical elevation of the tip is around 10mm to 30mm.
Eine Ausführungsform der Erfindung betrifft ein Schneegleitbrett mit einer Spitze, einem Mittelteil und einem Heck und mit einer Gleitfläche mit einer konkaven Spitzaufbiegung, einem konvexen Mittelteil und einer konkaven Endaufbiegung, wobei die konkave Spitzaufbiegung im Bereich eines vorderen Sattelpunktes in den konvexen Mittelteil der Gleitfläche münd. In einer Ausführungsform beträgt die Steigung im Bereiche des vorderen Sattelpunktes 2° bis 5° mit Bezug auf die Auflagebereiche im unbelasteten Zustand. Je nach Ausführungsform kann sie einen anderen Wert einnehmen. In einer bevorzugten Ausführungsform beträgt die Steigung rund 3°. Die Gleitfläche weist im Bereich der Spitzaufbiegung eine konkave Aufrollfläche, die ein belastungsabhängiges Verschieben des Kantendruckes ermöglicht. Je nach Ausführungsform weist die konkave Aufrollfläche einen konstanten oder einen zum vorderen Ende des Schneegleitbrettes hin abnehmenden Krümmungsradius auf. Bei Bedarf ist der Krümmungsradius der Aufrollfläche zum vorderen Ende des Schneegleitbrettes hin zumindest bereichsweise kontinuierlich oder diskontinuierlich abnehmend ausgestaltet. Bei einer bevorzugten Ausführungsform liegt der Krümmungsradius der Aufrollfläche je nach Anwendungsgebiet im Bereich von 1000mm und 5000mm oder zwischen 2500mm und 3500mm. Der Radius kann zum vorderen Ende abnehmen. Bei einer bevorzugten Ausführungsform beträgt der Radius im Bereich des vorderen Endes zwischen 200mm und 400mm. Je nach Anwendungsgebiet (z.B. Cross-Country, Freestyle, Race) ist der vordere Auflagebereich, mit Bezugnahme auf die Gesamtlänge L des Schneegleitbrettes, 5% bis 35%. 8% bis 20% oder 9% bis 14% vor dem vorderen Sattelpunkt angeordnet. Bei einer bevorzugten Ausführungsform ist der vordere Auflagebereich im undeformierten Zustand, mit Bezugnahme auf die Gesamtlänge L des Schneegleitbrettes und je nach Anwendungsgebiet, zwischen 8% und 15%, 10% und 13% von der Vorderkante des Schneegleitbrettes angeordnet, resp. Ist der vordere Quadrantenpunkt zwischen 3% bis 10%, 5% bis 8% vor dem vorderen Auflagebereich angeordnet. In Ergänzung kann das Schneegleitbrett im Bereich der Endaufbiegung eine Aufrollfläche aufweisen. Die Erfindung eignet sich zur Verwendung bei Schneegleitbrettern bei denen eine Variable Kantenkraftverteilung Vorteile beim Anströmen im ebenen und aufgekanteten Zustand bei Kurvenfahrten ergibt, insbesondere bei Snowboards, Skiern und Monoskiern.One embodiment of the invention relates to a snow gliding board having a tip, a central part and a tail and a sliding surface with a concave Spitzaufbiegung, a convex central part and a concave Endaufbiegung, wherein the concave Spitzaufbiegung in the region of a front saddle point in the convex central part of the sliding surface verb. In one embodiment, the pitch in the area of the front saddle point is 2 ° to 5 ° with respect to the bearing areas in the unloaded state. Depending on the embodiment, it can take on a different value. In a preferred embodiment, the slope is about 3 °. The sliding surface has in the region of the pointed bend a concave roll-up surface, which allows a load-dependent displacement of the edge pressure. Depending on the embodiment, the concave rolling-up surface has a constant radius of curvature or a radius of curvature decreasing towards the front end of the snow sliding board. If required, the radius of curvature of the rolling surface toward the front end of the snow gliding board is designed to decrease continuously or discontinuously at least in regions. In a preferred embodiment, the radius of curvature of the roll-up depending on the application in the range of 1000mm and 5000mm or between 2500mm and 3500mm. The radius can decrease towards the front end. In a preferred embodiment, the radius in the region of the front end is between 200mm and 400mm. Depending on the field of application (eg cross-country, freestyle, race), the front bearing area is 5% to 35% with reference to the total length L of the snowboard. 8% to 20% or 9% to 14% in front of the front saddle point. In a preferred embodiment, the front support area is in the undeformed state, with respect to the total length L of the snowboard and depending on the application, between 8% and 15%, 10% and 13% of the leading edge of the snowboard, respectively. If the anterior quadrant point is between 3% to 10%, 5% to 8% in front of the anterior support area. In addition, the snow sliding board can have a rolling surface in the region of the final bend. The invention is suitable for use in snow gliding boards in which a variable edge force distribution benefits when inflating in a flat and aufgekanteten Condition when cornering results, especially in snowboards, skis and monoskis.
Ausführungsformen der Erfindung werden anhand der nachfolgenden Figuren näher erläutert. Es zeigen:
- Fig. 1
- ein erfindungsgemässes Schneegleitbrett in einer Vorderansicht;
- Fig. 2
- das
Schneegleitbrett gemäss Figur 1 in einer Rückansicht; - Fig. 3
- das Schneegleitbrett
gemäss den Figuren 1 und 2 in einer Seitenansicht und einer Draufsicht; - Fig. 4
- zeigt ein herkömmliches Schneegleitbrett gemäss dem Stand der Technik in einer Vorderansicht;
- Fig. 5
- zeigt das
Schneegleitbrett gemäss Figur 4 in einer Rückansicht; - Fig. 6
- zeigt das Schneegleitbrett
gemäss den Figuren 4 und 5 in einer Seitenansicht und einer Draufsicht; - Fig. 7
- zeigt in einer perspektivischen Darstellung die Schneegleitbretter
gemäss den Figuren 1 bei einer Kurvenfahrt;bis 3 und 4bis 6 - Fg. 8
- zeigt in einer Seitenansicht die Schneegleitbretter
gemäss den Figuren 1 bei einer Kurvenfahrt;bis 3 und 4bis 6 - Fig. 9
- zeigt die Schneegleitbretter
gemäss den Figuren 1 bei einer Kurvenfahrt von der Seite in Richtung der Gleitflächen;bis 3 und 4bis 6 - Fig. 10
- zeigt Detail G aus
Figur 9 ; - Fig. 11
- zeigt Detail H aus
Figur 9 ; - Fig. 12
- ein Diagramm eines ersten Schneegleitbrettes;
- Fig. 13
- ein Diagramm eines zweiten Schneegleitbrettes;
- Fig. 14
- ein Diagramm eines dritten Schneegleitbrettes;
- Fig. 15
- ein Diagramm eines vierten Schneegleitbrettes;
- Fig. 16
- ein Diagramm eines fünften Schneegleitbrettes;
- Fig. 17
- ein Diagramm eines sechsten Schneegleitbrettes;
- Fig. 18
- ein Diagramm eines siebten Schneegleitbrettes;
- Fig. 19
- ein Diagramm eines achten Schneegleitbrettes;
- Fig. 20
- ein Diagramm eines neunten Schneegleitbrettes;
- Fig. 21
- ein Diagramm eines zehnten Schneegleitbrettes;
- Fig. 22
- ein Diagramm eines elften Schneegleitbrettes,
- Fig. 23
- ein Diagramm mit den Radien der vorderen Aufrollflächen;
- Fig. 24
- ein Diagramm mit den Radien der Taillierung vor einem vorderen Sattelpunkt
- Fig. 1
- an inventive snow sliding board in a front view;
- Fig. 2
- the snow sliding board according to
FIG. 1 in a rear view; - Fig. 3
- the snow sliding board according to the
Figures 1 and 2 in a side view and a plan view; - Fig. 4
- shows a conventional Schneegleitbrett according to the prior art in a front view;
- Fig. 5
- shows the snowboard according to
FIG. 4 in a rear view; - Fig. 6
- shows the snow sliding board according to the
FIGS. 4 and 5 in a side view and a plan view; - Fig. 7
- shows in a perspective view of the snow gliding boards according to the
FIGS. 1 to 3 and 4 to 6 when cornering; - Fig. 8
- shows in a side view the snow sliding boards according to the
FIGS. 1 to 3 and 4 to 6 when cornering; - Fig. 9
- shows the Schneegleitbretter according to the
FIGS. 1 to 3 and 4 to 6 when cornering from the side in the direction of the sliding surfaces; - Fig. 10
- shows detail G
FIG. 9 ; - Fig. 11
- shows detail H
FIG. 9 ; - Fig. 12
- a diagram of a first Schneegleitbrettes;
- Fig. 13
- a diagram of a second Schneegleitbrettes;
- Fig. 14
- a diagram of a third Schneegleitbrettes;
- Fig. 15
- a diagram of a fourth Schneegleitbrettes;
- Fig. 16
- a diagram of a fifth Schneegleitbrettes;
- Fig. 17
- a diagram of a sixth Schneegleitbrettes;
- Fig. 18
- a diagram of a seventh Schneegleitbrettes;
- Fig. 19
- a diagram of an eighth Schneegleitbrettes;
- Fig. 20
- a diagram of a ninth snow gliding board;
- Fig. 21
- a diagram of a tenth snow gliding board;
- Fig. 22
- a diagram of an eleventh snowboard,
- Fig. 23
- a diagram with the radii of the front rolling surfaces;
- Fig. 24
- a diagram with the radii of the sidecut in front of a front saddle point
In den nachfolgenden Figürenbeschreibungen sind gleiche Elemente mit identischen Bezugszeichen definiert.In the following description of the figures, identical elements are defined by identical reference numerals.
Die
Wie aus den
Wie aus der Draufsicht aus
Der mittlere Radius R1 des erfindungsgemässen Schneegleitbrettes gemäss
Im mittleren Bereich 13 weist das Schneegleitbrett im Grundriss einen Taillierungsradius von rund 20'000mm auf, der in der gezeigten Ausführungsform im Bereich der vorderem Maximalbreite B1 auf 13'000mm abnimmt. Im Bereich der hinteren Maximalbreite B2 beträgt der Radius rund 16'000mm Die vergleichsweise stumpf ausgebildete Spitze 8 weist im Grundriss in der Mitte einen Radius von rund 350mm auf, der in den Eckbereichen 11, 12 auf rund 80mm abnimmt Der hintere Abschluss der gezeigten Ausführungsform des erfindungsgemässen Schneegleitbrettes 1 ist hier im Wesentlichen gerade ausgebildet. Die Radien im Bereich nach der hinteren Maximalbreite B2 betragen hier rund 100mm. Ein Vorteil der gezeigten Ausführungsform besteht darin, dass trotz der vergleichsweise stumpf ausgebildeten Spitze 8, die in vertikaler Richtung zudem hier nur eine Erhebung von rund 20mm aufweist, aufgrund des efindungsgemässen Rolleffektes kein Einstecken während dem Fahren auftritt.In the
Im Unterschied zu einem konventionellen Schneegleitbrett 101 (Bildvordergrund) verlagert sich bei einem erfindungsgemässen Schneegleitbrett 1 (Bildhintergrund) der vordere Bereich mit hohem Kantendruck 16 (tiefste Kantenbereiche) bei der Kurvenfahrt, Aufgrund der erfindungsgemässen Ausgestaltung des Grund- und des Seitenrisses, wesentlich weiter zur Längsmitte (L=50%) hin als bei einem konventionell ausgestalteten Schneegleitbrett (vgl. Schneegleitbrett 101, Bereich 116). Aufgrund des relativ grossen Abstandes zwischen dem Auflagebereich 2 (vgl.
Die
In jedem Diagramm der
Die Seitenrisse (Gleitflächen) der Diagramme aus den
Im Bereich zwischen den Sattelpunkten der Gleitfläche 6, 7 und den Sattelpunkten des Grundrisses 24, 25 nehmen die Gleitflächenradien RS in der Regel vergleichsweise stärker ab als die Taillierungsradien RG. Dies ist daran zu erkennen, dass die Kurve der Gleitflächenradien RS im Mittel tendenziell steiler verläuft als die Kurve der Taillierungsradien RG. Ebenfalls sind die Radien die Gleitflächenradien RS zu den Sattelpunkten 24, 2.5 des Grundrisses hin tendenziell kleiner als die Taillierungsradien.In the area between the saddle points of the sliding
Die Taillierungsradien RG weisen ebenfalls im konvexen Mittelteil zwischen den Sattelpunkten 6, 7 der Gleitfläche 10 (vgl.
Aus den Diagrammen der
In Tabelle 1 sind die Werte der Schneegleitbretter aus den
Claims (24)
- Snow sliding board (1) having a tip (8), a central part (13) and a rear (9) and having a sliding surface (10) with a concave bent-up tip portion (21), a convex central part (22) and a concave bent-up end portion (23), wherein the concave bent-up tip portion (21) opens out into the convex central part (22) of the sliding surface (10) in the region of a front saddle point (6), and wherein the sliding surface (10), in the region of the bent-up tip portion (21), has a concave roll-up surface (17) which allows loading-dependent displacement of the edge pressure, characterized in that the sliding-surface radii (RS) and waisting radii (RG) decrease at least in a region bounded by respectively adjacent saddle points (6, 24; 7, 25) of a lateral projection and of a horizontal projection of the sliding surface, wherein the regions in which the algebraic sign of the curvature changes are referred to as a saddle point.
- Snow sliding board (1) according to Patent Claim 1, characterized in that the concave roll-up surface (17) has a constant radius of curvature (R1).
- Snow sliding board (1) according to Patent Claim 1, characterized in that the radius of curvature (R1) of the roll-up surface (17) decreases in the direction of the front end of the snow sliding board (1).
- Snow sliding board (1) according to Patent Claim 3, characterized in that the radius of curvature (R1) of the roll-up surface (17) decreases continuously, at least in certain regions, in the direction of the front end of the snow sliding board (1).
- Snow sliding board (1) according to Patent Claim 3, characterized in that the radius of curvature (R1) of the roll-up surface (17) decreases discontinuously, at least in certain regions, in the direction of the front end of the snow sliding board (1).
- Snow sliding board (1) according to one of the preceding patent claims, characterized in that the sliding-surface radii (RS) decrease to a more pronounced extent on average than the waisting radii (RG).
- Snow sliding board (1) according to one of the preceding patent claims, characterized in that the curve of the waisting radii decreases earlier in the direction of the ends (8, 9) than the curve of the sliding-surface radii.
- Snow sliding board (1) according to one of the preceding patent claims, characterized in that at least one of the tilting regions (RV, RH) is located between the saddle points of the sliding surface (6, 7) and, in respect of the overall length (L) of the snow sliding board (1), is spaced apart by 0% to 20% away from the nearest saddle point (6, 7).
- Snow sliding board (1) according to one of the preceding patent claims, characterized in that the bent-up tip portion (21), in the non-deformed state, forms a front bearing region (2) which, in respect of the overall length (L) of the snow sliding board (1), is arranged 5% to 35% in front of the front saddle point (6).
- Snow sliding board (1) according to Patent Claim 9, characterized in that the front bearing region (2), in respect of the overall length (L) of the snow sliding board (1), is arranged 8% to 20% in front of the front saddle point (6).
- Snow sliding board (1) according to Patent Claim 10, characterized in that the bearing region (2), in respect of the overall length (L) of the snow sliding board (1), is arranged 9% to 14% in front of the front saddle point.
- Snow sliding board according to one of Patent Claims 9 to 11, characterized in that the front bearing region (2), in the non-deformed state, in respect of the overall length (L) of the snow sliding board (1), is spaced apart by between 8% and 15% from the front edge (L = 0%) of the snow sliding board (1).
- Snow sliding board (1) according to Patent Claim 12, characterized in that the bearing region (2), in the non-deformed state, in respect of the overall length (L) of the snow sliding board (1), is spaced apart by between 10% and 13% from the front edge of the snow sliding board (1).
- Snow sliding board (1) according to one of Patent Claims 2 to 13, characterized in that the front quadrant point, in respect of the overall length (L) of the snow sliding board (1), is arranged 3% to 10% in front of the front bearing region (2).
- Snow sliding board (1) according to Patent Claim 14, characterized in that the front quadrant point, in respect of the overall length (L) of the snow sliding board (1), is arranged 5% to 8% in front of the front bearing region.
- Snow sliding board (1) according to one of the preceding patent claims, characterized in that the sliding surface (10) has a roll-up surface (17) in the region of the bent-up end portion.
- Snow sliding board (1) according to Patent Claim 16, characterized in that the bent-up end portion (23), in the non-deformed state, forms a bearing surface (4) which, in respect of the overall length (L) of the snow sliding board (1), is arranged 4% to 30% behind the rear saddle point (7).
- Snow sliding board (1) according to one of the preceding patent claims, characterized in that the radius of curvature (R1) of at least one roll-up surface (17) in the region of the associated saddle point (6, 7) is between 5000 mm and 30 000 mm.
- Snow sliding board (1) according to one of the preceding patent claims, characterized in that the radius of curvature (R1) of at least one roll-up surface (17) in the associated bearing regions (2, 4) is 500 mm to 2000 mm.
- Snow sliding board (1) according to one of Patent Claims 4 to 19, characterized in that the radius of curvature (R1) of the sliding surface (10) at least in certain regions of the bent-up tip portion (21) of the snow sliding board (1) is between 200 mm and 500 mm.
- Snow sliding board (1) according to one of the preceding patent claims, characterized in that the tip (8) is of blunt design as seen in horizontal projection and, in the central region (19), has a curvature which is smaller than in the corner regions (18).
- Snow sliding board (1) according to one of PatentClaims 1 to 21, characterized in that the snow sliding board (1) is a snowboard.
- Snow sliding board (1) according to one of PatentClaims 1 to 21, characterized in that the snow sliding board (1) is a ski.
- Snow sliding board (1) according to one of Patent Claims 1 to 21, characterized in that the snow sliding board is a monoski.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH19622005 | 2005-12-09 | ||
PCT/CH2006/000666 WO2007065280A1 (en) | 2005-12-09 | 2006-11-28 | Snowboard |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1960064A1 EP1960064A1 (en) | 2008-08-27 |
EP1960064B1 true EP1960064B1 (en) | 2010-04-28 |
Family
ID=37877611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06817722A Revoked EP1960064B1 (en) | 2005-12-09 | 2006-11-28 | Snowboard |
Country Status (6)
Country | Link |
---|---|
US (1) | US9216343B2 (en) |
EP (1) | EP1960064B1 (en) |
AT (2) | ATE465789T1 (en) |
CH (1) | CH697123A8 (en) |
DE (2) | DE502006006873D1 (en) |
WO (1) | WO2007065280A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT507737B1 (en) | 2008-12-23 | 2012-06-15 | Elan Sportartikelerzeugungs Und Handelsges M B H | SNOWBOARD |
FR2955035B1 (en) | 2010-01-08 | 2012-12-28 | Rossignol Sa | ALPINE SKIING |
DE102010031838A1 (en) | 2010-07-22 | 2012-01-26 | Blizzard Sport Ges.M.B.H. | Gliding board, especially skis |
US8256791B2 (en) | 2010-11-16 | 2012-09-04 | The Burton Corporation | Gliding board with improved response to rider input |
US9610492B1 (en) * | 2015-05-06 | 2017-04-04 | John Moran | Adjustable camber snow-gliding board |
US20200210546A1 (en) | 2019-01-02 | 2020-07-02 | Shinc Inc. | Systems and methods for generating a design for a gliding board |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH196205A (en) | 1935-08-17 | 1938-02-28 | Chem Ind Basel | Process for the production of a new dye preparation. |
US2510794A (en) * | 1946-11-01 | 1950-06-06 | Beerli Louis | Ski having concave sides |
DE4112950A1 (en) * | 1990-05-04 | 1991-11-07 | Rohrmoser Alois Skifabrik | Ski with special plan form - has pointed end and concave sides over middle region |
FR2665369B1 (en) | 1990-08-06 | 1992-10-16 | Salomon Sa | SKI WITH VARIABLE CONVEX TOP. |
US5405161A (en) * | 1994-02-04 | 1995-04-11 | Dennis Young | Alpine ski with exaggerated tip and tail |
US6352268B1 (en) * | 1994-09-19 | 2002-03-05 | Stephen Peart | Snowboard with transitioning convex/concave curvature |
US5954356A (en) | 1997-01-31 | 1999-09-21 | James Steele Busby, Jr. | Snowboard |
US5823562A (en) * | 1997-08-27 | 1998-10-20 | North Shore Partners | Snowboard |
EP0928622A3 (en) | 1998-01-12 | 2000-02-23 | Franz Völkl GmbH & Co. Ski und Tennis Sportartikelfabrik KG | Snowboard , in particular a ski |
FR2786108B1 (en) | 1998-11-25 | 2001-02-16 | Salomon Sa | SKI |
FR2804335B1 (en) * | 2000-01-28 | 2002-04-19 | Salomon Sa | SNOWBOARD FOR SNOW SURFING |
FR2845296B1 (en) * | 2002-10-03 | 2004-12-24 | Salomon Sa | SLIDING OR RUNNING BOARD |
FR2845611B1 (en) | 2002-10-15 | 2004-12-03 | Rossignol Sa | SNOW SNOWBOARD WITH SPATULA AND IMPROVED HEEL LIFTING |
-
2006
- 2006-11-28 DE DE502006006873T patent/DE502006006873D1/en active Active
- 2006-11-28 US US12/086,277 patent/US9216343B2/en not_active Expired - Fee Related
- 2006-11-28 DE DE212006000050U patent/DE212006000050U1/en not_active Ceased
- 2006-11-28 EP EP06817722A patent/EP1960064B1/en not_active Revoked
- 2006-11-28 CH CH01778/07A patent/CH697123A8/en unknown
- 2006-11-28 AT AT06817722T patent/ATE465789T1/en active
- 2006-11-28 WO PCT/CH2006/000666 patent/WO2007065280A1/en active Application Filing
-
2007
- 2007-11-07 AT AT0066607U patent/AT9812U3/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE465789T1 (en) | 2010-05-15 |
DE502006006873D1 (en) | 2010-06-10 |
CH697123A8 (en) | 2008-06-25 |
US9216343B2 (en) | 2015-12-22 |
US20090273161A1 (en) | 2009-11-05 |
AT9812U3 (en) | 2008-09-15 |
AT9812U2 (en) | 2008-04-15 |
EP1960064A1 (en) | 2008-08-27 |
DE212006000050U1 (en) | 2008-03-27 |
WO2007065280A1 (en) | 2007-06-14 |
CH697123A5 (en) | 2008-05-15 |
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