Abstract: Process for the manufacturing of a board for gliding on snow, with the said board including at least one fibrous reinforcement (20) embedded in an acrylic resin, during which one places all the component parts of the board in a mold in order, after closure of the mold, to expose this assembly to pre-determined pressure and/or temperature conditions, characterized by the fact that, before and/or during the subjection to the said pressure and/or temperature conditions, the fibrous reinforcement (20) is impregnated with an impregnation composition including at least 70%, in weight, of alkyl (meth)acrylate.

Abstract: An interface device adapted to be positioned between a ski and an assembly for retaining a boot on the ski, the device including front and rear platforms that are raised with respect to the surface defined by the upper surface of the ski. The platforms are supported by a cradle having a reduced length with respect to the volume of the platforms, each of the platforms being connected to the cradle by a bearing journal, and both platforms being connected to each other by a non-extensible connection located above the journals. The invention also relates to the combination of a retention assembly and a ski.

Abstract: Device for damping ski vibrations constituted by at least one flexible strip rigidly attached to the ski and at least one flexible connection piece, the rigid attachment being spaced longitudinally apart from the flexible connection piece.

Abstract: A ski having a sole equipped with discontinuous serrations including a central flat gliding zone and on one side, at least, a lateral curved gliding zone bordering the central zone. The surface of the rear portion at least, of the central zone between the rear contact line and the center line of the boot of the ski is equipped with a pronounced structuring such that the measured values of the significant roughness parameters Rtm and Rku are greater than the values measured on the surface of the lateral curved gliding zone. The invention is more specifically related to an alpine ski whose ability to pivot and to glide are thus improved.

Abstract: A ski having a sole equipped with discontinuous serrations comprising a smooth or lightly structured front portion and a strongly structured rear portion. The rear portion extends towards the rear in the direction of rear contact line from a transverse line located between the boot center line and a transverse line located at a distance (d) from the boot center line, equal to 0.4 times the distance (D) separating the line from forward contact line. The invention is more specifically related to an alpine ski whose ability to glide is thus improved.

Abstract: The invention relates to a ski equipped with a beam and a device intended to modify the stiffness and/or shock absorption of vibrations. The ski includes (1) at least one elongated element oriented longitudinally with respect to the ski, connected to the ski by a rigid linkage and which includes at least one free end, suited to be displaced longitudinally with respect to the ski when the ski is biased in flexion, and spaced longitudinally from the rigid linkage, and (2) a resistance device connected to the ski that cooperates with the free end in order to resist its displacement, the resistance force of the resistance device that resists the displacement of the free end decreasing between a minimum displacement position and a maximum displacement position. Such a ski maintains its stable qualities in a horizontal position and improves its pivoting and steering characteristics during tight turns.

Abstract: A device for modifying the pressure distribution of a ski such as especially an alpine ski over its gliding surface. The ski is equipped in its middle sole zone with at least one binding element adapted to retain a boot, and with at least one support element on which the sole of the boot rests. The device includes a stiffening blade that extends above the ski from the middle sole zone towards the front where it is affixed to the ski. It also includes a sensor element in contact with the sole of the boot, that is mobile along a vertical direction, and a connection between sensor element and stiffening blade, in order to transmit to stiffening blade, in the form of a force oriented along the horizontal and longitudinal direction of the blade towards the front, at least a portion of the downward vertical thrust of the boot captured by sensor element.

Abstract: A device for modifying the pressure distribution of a ski, such as especially an alpine ski over its gliding surface, as well as to a ski equipped with such a device. The ski is equipped with at least one binding element adapted to retain a boot in the central zone of the middle sole, and at least one support element on which the sole of the boot rests. Moreover, the ski includes a lower base, and above the base, a stiffening blade, both of whose ends are fixedly connected to the base at the front and rear of the middle sole zone. The device includes, in addition, a sensor element in contact with the sole of the boot, mobile along a vertical direction. It also includes a connection between the sensor element and stiffening blade in order to transmit to the blade, in the form of at least one longitudinally or horizontally oriented force in the direction of either one and/or the other of its ends, at least a portion of the downward vertical thrust of the boot captured by sensor element.

Abstract: The invention relates to an interface device between a boot and a ski for modifying in a dynamic manner the pressure distribution of the ski on the snow. The device includes two binding elements, a mobile sensor, a return rocking device, and an element affixed to the ski. The rocking device is arranged to transform a vertical bias exerted on the sensor into a traction bias exerted on the element affixed to the ski. In reaction, a traction bias of the same type can be transmitted towards the rear of the ski.

Abstract: An improvement to known ski shock-absorption devices is constituted by an elongate beam having an arched portion of a length (LC) between a forward contact line and a rear contact line; the central portion including a binding mounting zone. The ski includes two transmitters located in the central portion and each on either side of the mounting zone. One of the ends of each transmitter is linked to the beam by a complete connection; the other end is connected by a partial connection, free in translation along a longitudinal direction, constituted of an elastic and/or visco-elastic element that resists the longitudinal displacement of the transmitter; the portion of length (l.sub.T1, l.sub.T2) of each transmitter between the two connections being left free, at least in translation, with respect to the beam; the ratio (l.sub.T1) of front transmitter over (l.sub.T2) of rear transmitter being comprised between 1.5 and 2.5 and (l.sub.T1 +l.sub.T2)/LC being comprised between 0.15 and 0.25.

Abstract: Device for damping the vibrations of a ski, comprising a flexion plate movably connected to the ski by at least two longitudinally spaced damping mechanisms. At least one of the damping mechanisms is a flexible linkage element formed by an interface of pliable material, such as a layer of viscoelastic material welded or glued to the flexion plate. One of the damping mechanisms may be of the dry friction type, or of the viscous friction type.

Abstract: An improvement to known ski shock-absorption devices is constituted by an elongate beam having an arched portion of a length (LC) between a forward contact line and a rear contact line, the central portion including a binding mounting zone. The ski includes two transmitters located in central portion and each on either side of the mounting zone. One of the ends of each transmitter is linked to the beam by a complete connection; the other end is connected by a partial connection, free in translation along a longitudinal direction, constituted of an elastic and/or visco-elastic element that resists the longitudinal displacement of the transmitter. Under bending stress, the displacement ratio (.DELTA.1) of partially connected end of front transmitter over the displacement (.DELTA.2) of the partially connected end of rear transmitter being comprised between 1.2 and 2.

Abstract: A ski having a first lower assembly or base, whose front end is raised to form the spatula, and the second upper assembly or stiffener, the two assemblies being connected to one another by a flexible and/or partially rigid connection.

Abstract: A ski equipped with at least one shock-absorption device adapted to absorb the vibrations of a ski having at least one flexion blade which includes a first portion fixed rigidly to the ski and a second portion connected to the ski in a longitudinally mobile manner by a shock-absorption arrangement of the viscous friction type.

Abstract: A ski including a first sub-assembly or base having its own distribution of stiffness and a second upper sub-assembly or stiffener connected to the base by means of flexible and/or partially rigid connections. The stiffener includes two parts separated and spaced from one another by a short distance when the ski is at rest. The two parts cooperate with each other when the ski is biased flexionally in certain functional conditions so as to increase the stiffness of the ski.

Abstract: Shock absorption device adapted to damp the vibrations of a ski, comprising at least one flexion blade that includes a first portion fixed to the ski and a second portion connected to the ski in a longitudinally mobile manner by a friction device.

Abstract: A ski, especially alpine, including a lower sliding surface joined at two lateral surfaces themselves joined at an upper surface which has a median rib extending longitudinally, at least in the central zone of the ski. The rib is raised with respect to two lateral lowered portions bordering it from each side and on which a support takes support, adapted to receive the bindings. The support has the shape of an inverted "U" and includes an upper wall extending laterally and downwardly by two lateral walls to constitute a lower housing adapted to the passage of rib. The lateral walls of support include at least one recess which extends horizontally. The recesses become deformed in case of overpressure on the support caused during skiing and the support plays the role of a suspension.

Abstract: A ski having a first lower assembly or base whose front end is raised to form the spatula, and a second upper assembly or stiffener whose front and rear ends are connected to the base by a flexible and/or partially rigid connection, and includes at least one support or stirrup connected to the base adapted to receive the bindings in order to maintain the boot on the ski.

Abstract: Ski having the shape of an elongated beam comprising a lower sliding face, an upper face, and two lateral edges, the upper face comprising, in its central portion, a projecting platform such that the upper face of the ski is constituted by a central upper surface projecting outward from an upper front and rear surface and positioned between these two surfaces. The central platform is extended to the front and/or to the rear by least one connection projection piece whose width is less than the width of the platform, and whose height decreases, at least in its section connecting with the upper front or rear surface.

Abstract: Shock absorption device adapted to damp the vibrations of a ski, comprising at least one flexion blade that includes a first portion fixed to the ski and a second portion connected to the ski in a longitudinally mobile manner by a friction device.