Abstract: The invention describes a ski (2) or a snowboard in the form of a board-type gliding device (1). By reference to the width (13) of the gliding device (1), at least one recess (14) is provided in its middle portion extending in its depth direction—arrow (15)—from the top face (7) of the gliding device (1) in the direction towards the running surface facing (10) and disposed in its longitudinal direction essentially parallel with the longitudinal direction of the gliding device (1) with a view to causing a cross-sectional weakening. At least one manually adjustable adjusting means (20) is provided, which is designed to produce an individually adjustable change in the load-dependent deformability of the cross-sectional shape or to produce an individually adjustable limit to the maximum permissible load-dependent cross-sectional deformation of the gliding device (1).

Abstract: A ski or a snowboard in the form of a board-type gliding device has by reference to the board body width, at least one slot in its middle portion extending in the depth direction from the board body top face towards the running surface facing and in its longitudinal direction essentially parallel with the board body longitudinal direction to cause a cross-sectional weakening and reduce the stiffness of the board body transversely to its longitudinal direction. At least one geometry-influencing device produces a cross-sectional board body shape or contour which is variable manually or as a function of load. The slot is then faced with a bridging element which is elastically stretchable or expandable, at least transversely to the longitudinal extension of the slot to prevent snow from being transferred or getting inside the slot from the running surface facing towards the top face of the gliding board body.

Abstract: A gliding board having a front end and a rear end, the front end and the rear end being spaced from one another along a longitudinal axis, the board being made by superimposing the following elements: a gliding sole; at least one lower reinforcement; at least one upper reinforcement; an intermediate structure, positioned between at least one lower reinforcement and the at least one upper reinforcement; wherein, at least on of the ends of the gliding board, at least one lower reinforcement and/or the at least one upper reinforcement respectively include/each include a longitudinal slit so that in a zone of at least one of the ends there is a reduced reinforcement thickness above and/or below the intermediate structure.

Abstract: A gliding board including a primary core positioned between a lower sub-assembly and an upper sub-assembly, the upper sub-assembly and the lower sub-assembly including at least one first upper reinforcement and one first lower reinforcement, respectively, extending longitudinally over at least two thirds of the length of the gliding board, and further including a frictional damping arrangement. The damping arrangement includes a blade having a thickness of less than 2 mm and a structure that enables the sliding of at least one of the ends of the blade. The damping arrangement is positioned between the first lower reinforcement and the first upper reinforcement, and the distance separating the damping arrangement from the first upper reinforcement, or from the first lower reinforcement can range, for example, between 0 mm and four times the thickness of the blade.

Abstract: Skis and methods of skiing are provided. In some implementations, the skis include a preload, and/or have a relatively low spring rate. In one aspect, the skis include (a) a ski body having a front and a back, the front and back terminating, respectively, at a tip and tail at opposite ends of the ski body; and (b) a suspension system connected to the ski body so as to apply a load to the front and back of the ski body. In some cases, the suspension system is configured to provide the ski with a spring rate that diminishes as the ski is flexed from a normal unloaded state or a predetermined state of deflection to a state of greater deflection.

Abstract: A snowmobile ski with a pair of outboard keels and laterally projecting, upwardly slanting, lateral wings attached proximate the outboard keels is disclosed. A ski of this structure has improved flotation and resistance to side slippage in turns.

Abstract: A ski or snowboard having improved the transmission of forces from a binding mounting area to the respective edge of a ski or snowboard is disclosed. Such a ski or snowboard comprises a gliding surface with the associated edges as well as a lower support comprising a number of support layers over which a core with its associated lateral flanks is built. Over the core, a support is arranged in a uniform and relief-like manner that is constructed as a uniform whole from the shaped flat material, for example from laminate or in principle also from shaped sheet metal, or a plate or laminate or a similar flat semi-finished product of metallic or non-metallic material.

Abstract: A snowboard which incorporates a rocker element instead of a camber.

Abstract: At least one embodiment of the inventive technology relates to a snowboard having a lower surface that does not at any point along at least one specified portion thereof contact a horizontal surface underlying the snowboard when the snowboard is unweighted. Such portion(s) may be defined, at least in part, by one or more cambers. A rocker may be used to impart additional board performance benefits to a rider. Other embodiments may relate more specifically to the positioning of cambers relative to mount regions.

Abstract: Skis and methods of skiing are provided. In some implementations, the skis include a preload, and/or have a relatively low spring rate. In one aspect, the skis include (a) a ski body having a front and a back, the front and back terminating, respectively, at a tip and tail at opposite ends of the ski body; and (b) a suspension system connected to the ski body so as to apply a load to the front and back of the ski body. In some cases, the suspension system is configured to provide the ski with a spring rate that diminishes as the ski is flexed from a normal unloaded state or a predetermined state of deflection to a state of greater deflection.

Abstract: A ski in accordance with the invention increases in width from a tip or shovel portion to a mid-portion. The mid-portion includes at least a slight sidecut. The ski then decreases in width from the mid-portion to a tail portion. The ski also includes an undersurface with a substantial portion being rockered. A substantial portion of the mid-portion of the ski is not rockered.

Abstract: An alpine ski includes a zone for mounting a binding centered on a mounting point, and a single particular flexion deformation zone arranged between the mounting zone and one or each end of the ski. Under a static load of 900 Newtons, applied to the center of the particular deformation zone and along a direction perpendicular to the ski sole, the deformation zone adopts a generally dihedral configuration, whose deflection is greater than or equal to 13 mm, 15 mm in a particular embodiment, the ski being supported on two rods arranged under the sole, symmetrically on both sides of the zone and spaced from one another by an axial distance equal to 400 mm.

Abstract: Snowboards are provided that consolidate and redirect a portion of the weight and forces of the rider to the optimal locations (near the edges and near the longitudinal center of the board), providing excellent turning and control and providing impact absorption when landing from a jump. In some implementations, an adjustable spring suspension system allows custom optimization of both the turning and ride characteristics of the snowboard.

Abstract: A ski in accordance with the invention increases in width from a tip or shovel portion to a mid-portion. The mid-portion includes at least a slight sidecut. The ski then decreases in width from the mid-portion to a tail portion. The ski also includes an undersurface with a substantial portion being rockered. A substantial portion of the mid-portion of the ski is not rockered.

Abstract: Snow-ski board, especially a ski, having at least one trimming mechanism with at least one trimming rod with its axis oriented in the longitudinal direction of the snow-ski board, including at least one damping element and at least one adjusting or tensioning mechanism for supporting the trimming rod on both ends by adjustable mechanical tension.

Abstract: Suspension systems are provided for skis. In some implementations, the suspension system includes a spring-like element and a support structure configured to attach one end of the spring-like element to the central half of the longitudinal running length of a ski body. The spring-like element is configured so that the opposite end of the spring-like element contacts the ski body at a contact point on the front-most or rear-most fifth of the longitudinal running length of the ski body, and applies a downward force at the contact point such that the degree of free camber of the ski is increased relative to the natural free camber of the ski body without the suspension system attached.

Abstract: The present invention relates to a recreational and sporting device (10) comprising a foot support (12) that is mounted on a first wheel (26) such that the foot support is located below the axis of rotation of a first wheel (26). The foot cradle (12) is hingedly attached to a leg support (18) which is adapted to be attached to a user's leg. The device (10) may further include a second wheel (56) used for stabilization and to assist in steering. The device (10) provides a recreational and sporting apparatus that is more manoeuvrable and can be used on uneven terrain where conventional skates, such as in-line skates, cannot be used.

Abstract: A sports board, such as a snow board, has a board core structure that provides desired structural characteristics localized to select regions of the board while maintaining predictable produceability and optimum operating qualities of the board. In an embodiment, the sports board includes a plurality of layered elements or segments, of which certain elements or segments are joined using interlocking elements.

Abstract: The invention relates to a supporting plate incorporating an adjustable asymmetry function enables the carving turns to be performed in such a way, that the skis run along two parallel curves, which in ideal circumstances match closely the arcs of two concentric circles, that no additional energy is needed to maintain the skis in parallel position throughout the turn, and that the turns are executed without unwanted vibrations and with normal, not much increased physical activity. The asymmetry of the skis, that is the assignment of a left and a right ski, is set up in a control assembly, comprising a weighting member, made of two balls, one steel ball and one highly compressible ball made of rubber or similar material, and two mechanical stops, as well as a housing, where an aluminum piston with a magnet acts as a find regulating device. The left and the right ski are set up by the disposition of the balls and the outside ski in a turn, respectively, are distinguished.

Abstract: Suspension systems are provided for skis. In some implementations, the suspension system includes a spring-like element and a support structure configured to attach one end of the spring-like element to the central half of the longitudinal running length of a ski body. The spring-like element is configured so that the opposite end of the spring-like element contacts the ski body at a contact point on the front-most or rear-most fifth of the longitudinal running length of the ski body, and applies a downward force at the contact point such that the degree of free camber of the ski is increased relative to the natural free camber of the ski body without the suspension system attached.

Abstract: A skateboard comprises a deck including a first layer formed of synthetic material, a second layer formed of synthetic material and substantially coplanar with the first layer, and a middle layer substantially coplanar with and coupled between the first layer and the second layer. The middle layer is formed of synthetic material defining an elongated opening extending lengthwise from a front portion of the deck to a rear portion of the deck. An elongated member is formed of spring steel extending lengthwise within the elongated opening and spaced from at least one surface thereof to allow relative movement between the elongated member and the elongated opening. A truck assembly includes a baseplate coupled to the second layer and having a pivot arm hole, a first kingpin hole and a spring holder. The truck assembly further includes an axle housing having a second kingpin hole, a first and second end.

Abstract: A downhill ski having a thrust support acting elastically downwards on a point in that portion between the front jaw (P) of the binding and the section where the tip curvature commences.

Abstract: A board (1) for gliding, in particular on snow, having a protective upper layer (3) covering the internal structure of the board, including the core (5) and any reinforcements (10), wherein: it has a metal plate (2) arranged between the protective upper layer (3) and the internal structure of the board, said plate (2) is located level with a transparent region (4) of the protective upper layer (3), said plate (2) has at least one recess (12) formed on its upper face, inside which the material of the protective upper layer (3) penetrates.

Abstract: An alpine snowboard comprises a boot portion having elements of a binding, a tail portion located at the back of said snowboard and extending along about 1/10 of the total length of said snowboard, and a back intermediate portion located between the boot portion and the tail portion, part of which is a zone having reduced mechanical properties. The zone having reduced mechanical properties is the result of at least a lateral cutout located at least on the lower portion of the snowboard. At least one of the squares of the snowboard has a deviation at said cutout so as to comprise two square portions movable vertically with regard to each other, that is a back square portion and a front square portion which are separated by said deviation.

Abstract: The invention relates to a snow gliding board (1) having a sidecut (2) that widens from the middle area (3) of the board towards at least one of its ends to a point of maximum width (4) and of which the structure includes a reinforcing fiber mat (10) comprising yarns (11) that extend in the longitudinal direction of the board. It is characterised in that the number of yarns (11) per unit of length, measured across the board, varies from the middle area (3) towards the point of maximum width (4) of the board.

Abstract: A snow ski board (1) such as a ski, monoski, or a snowboard, with a vertical plane of general symmetry (P) includes a body or base (2) that includes at least in a binding zone (3) two hollow lateral recesses (8a, 8b) extending longitudinally. A longitudinal rib (11) is defined between the recesses. Each of the longitudinal recesses (8a, 8b) opens at least towards the top (HA). The body (2) is affixed, at least in the binding zone (3) to a supplementary element (4) having two lateral longitudinal parts (4a, 4b) which extend longitudinally and parallel. The two lateral longitudinal parts (4a, 4b) are affixed into the longitudinal recesses (8a, 8b) and are linked by at least one transverse connector (4c).

Abstract: The invention relates to a ski (2) or a snowboard in the form of a board-type gliding device (1). By reference to the width (13) of the gliding board body, at least one slot (14) is provided in its middle portion extending in the depth direction—arrow (15)—from the top face (7) of the gliding board body in the direction towards the running surface facing (10) and in its longitudinal direction extending essentially parallel with the longitudinal direction of the gliding board body. This at least one slot (14) is designed to cause a cross-sectional weakening and reduce the stiffness of the gliding board body transversely to its longitudinal direction. At least one geometry-influencing means (19) is also provided with a view to producing a cross-sectional shape or contour of the gliding board body which is variable as a function of load and/or can be manually varied.

Abstract: The invention describes a ski (2) or a snowboard in the form of a board-type gliding device (1). By reference to the width (13) of the gliding board body, at least one slot (14) is provided in its middle portion extending in the depth direction—arrow (15)—from the top face (7) of the gliding board body in the direction towards the running surface facing (10) and in its longitudinal direction essentially parallel with the longitudinal direction of the gliding board body. This at least one slot (14) is provided with a view to causing a cross-sectional weakening and reducing the stiffness of the gliding board body transversely to its longitudinal direction. Also provided is at least one geometry-influencing means (19), by means of which the cross-sectional shape or contour of the gliding board body is variable as a function of load and/or can be manually varied.

Abstract: A snow gliding board (1) comprises, in particular, an upper surface consisting of an upper decorative and protective element (16) having a recess in which an insert (21, 22, 23) is fitted. The insert (21, 22, 23) comprises at least one first part made of an elastomer material (24) juxtaposed on the upper surface with at least one second part made of a metallic material (26).

Abstract: A gliding board, such as a snowboard, has improved lift or float in certain conditions, e.g., when gliding in powdered snow. A nose and/or tail of the gliding board may have a variable bending property to provide the improved float. In one embodiment, the nose and/or tail may have a tapered thickness or other features so that the nose and/or tail is more flexible toward the tip of the nose or tail. Other variable bending properties in the nose and/or tail may be provided for reasons other than improved float, such as to enhance trick or other maneuver performance.

Abstract: The invention concerns a multilayer film (15) for the construction of skis, a ski (1) having said multilayer film (15) and processes for the production of the multilayer film and the ski. The multilayer film (15) has a multilayer transfer or laminating film comprising two or more thin layers. A mechanically load-bearing layer with preferably a high modulus of elasticity is arranged on a surface of the multilayer transfer or laminating film. A cover layer is arranged on another surface of the multilayer transfer or laminating film. The multilayer film formed in that way is now applied to a base body of the ski (1).

Abstract: A crosscountry ski (1), the lower face (3) of which is curved to form a wax zone (2) positioned substantially in the region lying below the user's boot, wherein its upper face (11) has at least one recess (10), and wherein each recess (10) holds a rigid longitudinal bar (12, 13) extending from the rear of the wax zone (2) to the front of said zone, with one of the ends (17) of each bar (12, 13) abutting (4) on an element (16) which is fixed relative to the ski, while complementary means (20) interacting with the other end (18) of each bar (12, 13) are provided in order to adjustably compress said bar (12, 13).

Abstract: The invention relates to a mechanical device for modifying the radial geometry of a ski, proportionally to its flexion, which includes elements, referred to as transmission elements, which, each interposed between the rod and the ski wherein each transform a relative displacement of the rod, oriented along its longitudinal axis and directed towards one of the ends of the ski (direction S1), into a second displacement oriented along a direction intersecting the longitudinal axis and directed towards the outside of the ski and wherein each apply this displacement at a selected place of the ski so as to bring about, during the relative displacement of the rod, a thrust generating the deformation of this ski along its cross-section, transverse deformation translated, in particular, through a spacing apart in the upper part of the ski and through the desired modification of the geometry of the lower face of this ski.

Abstract: A ski sport apparatus having a ski with a middle section and two outer sections. An interface device connected to the ski, with a binding region for accommodating a ski binding is arranged in the middle section. The ski sport apparatus has at least two force introduction regions distanced to one another in the longitudinal direction, for introducing forces from the interface device into the ski. The ski in the longitudinal direction has several regions of lower or higher flexibility alternating in the longitudinal direction. The middle section of the ski has a region with a higher flexibility. A frontmost and/or a rearmost force introduction region is allocated to a region with a lower flexibility of the ski and in the longitudinal direction is arranged further to the front or further to the rear than the binding region. The ski has good curve dynamics, has a good ski guiding and excels with an incomparable running smoothness.

Abstract: A gliding board such as a snowboard (100) having a core (130), a lower structural layer (132), an upper structural layer (134), a base element (138) attached under the lower structural layer, and a metal edge piece (136). A vibration-absorbing panel (120) is attached to the outer surface of the upper structural layer and a protective layer (140) is disposed over the vibration-absorbing panel and the upper structural layer. The vibration-absorbing panel is disposed in the binding attachment region (110) of the snowboard and is an integral and nonremovable part of the snowboard. The upper structural layer may include a recessed portion (235) that is sized to receive the vibration-absorbing panel, whereby the top surface of the snowboard does not have any protrusions. The snowboard includes an array of threaded inserts (152) for selective positioning and attachment of the binding base plate (150) to the snowboard over the vibration-absorbing panel.

Abstract: This invention relates to an improved snowmobile ski having a vertical fin on the topside of the ski with a surface area large enough to minimize or prevent sideways slippage of the ski during a turn. The fin, if a single fin is used, is located adjacent the outboard edge of the ski. A snowmobile ski with dual topside fins having outwardly projecting lips along the upper edges of said fins has improved performance in deep snow.

Abstract: A snow glider is provided having a design that facilitates gliding through snow rather than skidding. The snow glider may have a narrow waist width combined with an elevated binding assembly to promote positive engagement with a skiing surface during use. A method of skiing includes skiing downhill on a skiing surface using glider skis, wherein each ski has a ski base and a pair of edges extending along opposite sides of the base. While skiing downhill, the method of skiing also includes changing direction without skidding the skis on the skiing surface.

Abstract: A gliding or rolling board having, in height, a first reinforcement and a second reinforcement between which a first core is arranged. Along at least a portion of the periphery of the board, a band having a shock-absorbing material is juxtaposed to a reinforcement.

Abstract: A snow sliding device such as a ski, a monoski, or a snowboard, has a plane of general symmetry P. It includes a principal part, called a body or base 2, which has a longitudinal rib 11 formed between two lateral channels 5a, 5b which open laterally toward the exterior EX and upward HA, and which do not open downward BA. A thin, lower lateral edge 20 extends below the channel. In each of the channels 5a, 5b, a complementary lateral element 3a, 3b, respectively, is attached. A height H of the ski, which corresponds to a distance between an upper surface 30 of the complementary lateral elements 3a, 3b and a lower sliding surface 6, is variable.

Abstract: A snowboard (10) includes a central section (12) and tip and tail sections (14, 16). The snowboard includes a core (30) bordered within the central section along longitudinal edges by sidewall members (24). The snowboard includes upper and lower reinforcement layers (32, 34) covered by a top sheet (36) and a base (38). The outer surfaces (44) of the sidewall members (24) are exposed between the top sheet and the base within the central section of the board. In the tip and tail section of the board, the sidewall members are absent, with a cap formed by the top sheet and upper reinforcement layer extending to cover the perimeter edge of the core and join to the base. The board thus has a fully exposed sidewall construction in the central section and a capped construction in the tip and tail sections.

Abstract: A downhill ski having a ski body, which has a running surface on its under side, comprises on its upper side a support structure, on which a compressive force-absorbing upper chord element is mounted. The support structure is formed from an elongate flat component that is bent, preferably in an undulating manner, at intervals in alternating directions in each case at an angle to the running surface, about substantially parallel axes, which extend transversely to the longitudinal direction of the ski.

Abstract: In an alpine ski with an elongate ski body (1) forming a running surface (5), a mounting (7) for fastening a binding arranged on the upper face of the ski body (1) and rigidly connected therewith and attached to the ski body (1), extending in the longitudinal direction of the ski body (1) and receiving pressure forces, at least one upper cord element (11), the ends thereof being supported on the ski body (1), the upper cord element (11) being movably mounted relative to the ski body (1) between its ends and constructed such that under the impact of pressure forces it endeavours to deform elastically by flexural buckling and to carry out a deflection movement relative to the ski body (1). Support elements (17) are provided on the ski body (1) which counteract the deflection movement of the upper cord element (11) by exerting a counterforce.

Abstract: A short ski (1) having a length LT of less than 110 cm, in particular for skiing by children, having a reduced-thickness region (3) in its central zone (2), which is bounded at the front and the rear by maximum-thickness regions (4, 5) each capable of holding the elements (6, 7) of a safety binding, said ski having an overall flexibility (SG), that is to say a flexure under deformation by a force F of 20 decanewtons applied to the upper surface of the ski midway between the two supporting points respectively lying level with the front contact line (LCFR) and rear contact line (LCRE), which is between: L p 3 H max 2 × 10 - 5 ? ? and ? ? L p 3 H max 2 × 2.10 - 5 expressed in millimeters, where Lp is the bearing length as defined between the front and rear contact lines and Hmax is the maximum thickness of the ski, both expressed in millimeters.

Abstract: The present invention generally relates to boards for performing skiing such as downhill skis, cross-country skis, snowboards and the like, to a method of stiffening such boards, and a method of manufacturing such boards. More specifically, the present invention relates to a downhill ski comprising electronics for establishing optimal handling and performance characteristics. The board for performing skiing sports of the present invention generally comprises a longitudinally extending body having a longitudinal axis, at least one transducer laminated to the body and converting upon deformation of the body mechanical power to electrical power, and an electrical circuit connected across the transducer.

Abstract: A snow sliding board (1) such as a ski, a snow board or a surf board has a vertical plane of general symmetry (P). A principal portion, called body or base, includes at least in the area of the sole a complementary, longitudinal element intended to receive the binding for retention of the user's boot The base (2) has the shape of an elongated beam, comprising a sliding sole, whose front extremity is raised in order to form a spatula, with the complementary longitudinal element having the shape of an elongated plate, limited laterally by a lateral left rim and a lateral right rim. The complementary element additionally includes a front portion connected to a rear portion by means of a middle portion. At least one of the lateral rims of the complementary element acts as lateral support, via at least its middle portion, on a lateral shock absorbing stop of deformable elastic material.

Abstract: A board for gliding that has an underfoot zone for receiving the foot or feet of the user that extends toward the front of the board by a tip zone and to the rear of the board by a heel zone. The board further including a lower assembly containing a protective layer and reinforcement. An intermediate core is located between the two assemblies. A plate is located in the underfoot zone that is displaceable in the direction of the lower assembly by foot pressure exerted by the user. A rigid arm is mounted in the board transverse to the core so that one end of the other end bears upon the underside of the plate. Forces exerted by the user on the upper surface of the board are transmitted to the lower surface of the board by the ends of the arm.

Abstract: A ski having a sandwich-like construction including rods and slit stops for changing a radial geometry of the ski. When the ski flexes, the rods and the ski change their respective radii differentially, causing changes in the slit stops. In turn, the slit stops spread or constrict to change maneuvering characteristics of the ski.

Abstract: A snow shoe (1) such as a ski, a single ski board or a snowboard, having a vertical plane of general symmetry, comprising a principal portion, called a body or support base (2) to which is attached, at least in the zone of the sole plate, at least one complementary longitudinal element (3a, 3b). The complementary element(s) is/are retained in a corresponding lateral disengagement unit, which emerges laterally and in upward direction (HA) towards the exterior (EX), while it does not issue in downward direction (BA).

Abstract: A gliding board, including: an injected polyurethane foam core; lateral reinforcing elements, which form some or all of the edges of the board; at least one internal reinforcement, which is in the form of a solid layer; and two outer layers, of which the lower layer forms the gliding surface and the upper layer forms the protective layer. The internal reinforcement rests on recesses which are provided for this purpose in each of the lateral reinforcing elements. The internal reinforcement has notches on its side profiles so that, level with the notches, the injected core passes through it in order to at least partially occupy the volume defined between the internal reinforcement and at least one of the two outer layers.

Abstract: A snow board, the camber of the side cut of which is accentuated, including a bottom surface (7) with a forward contact line (LCAV), which is a forward limit of the contact zone of the bottom surface (7) on a horizontal planar surface (PH), the board (1) being placed on the horizontal planar surface (PH), and a shovel (2), which is a forward part of the board (1) that is curved upward in order to overcome obstacles, the shovel (2) having a width of the shoulder of the ski line (LbV), defined as being a line on the bottom surface (7) in the shovel zone (2) at the location where its width (bV) is at a maximum, wherein the height (hAV) of the width of the shoulder of the ski line (LbV), measured between said bottom surface (7) and said horizontal planar surface (PH), is about 5 mm and to 15 mm.