Abstract: Alpine ski comprising a front area known as the tip area (2), a rear area known as the tail area (4), and an intermediate area known as the mid-section (3) designed to receive a stop (12) and a heelpiece (13) comprising the binding of the boot of a skier. In this ski, the rigidity, namely the resistance to flexing in the lengthwise direction of the ski, of the center part of the mid-section (3) is less than the rigidity in the two end parts of the mid-section (3), namely the parts that connect with the front (2) and rear (4) areas.

Abstract: The boot has a cuff (4) articulated to a shell (1) and means for retaining the cuff which counteract the rearward tilting of the cuff but give way when the force tilting the cuff exceeds a specific value. These means consist essentially of a ramp (12) which is integral with the shell or the other component of the boot and against which a bearing element (8) integral with the cuff bears. The ramp and the bearing element can push one another against the action of a spring (9). An escape position allows the cuff to tilt. Such a boot is intended to prevent tearing of the anterior cruciate ligament of the knee.

Abstract: Roller skate comprising a chassis (2) equipped with rollers (3) and a boot (1) attached removably to the chassis at four points by catching and locking. Catching and locking are achieved automatically and simultaneously at all of the attachment points using a common element (8) subject to the action of an elastic means (16). Unlocking is achieved using a lever (19) articulated to the rear of the chassis and which can be used as a handle when putting the chassis on.

Abstract: A shoe/binding assembly for a gliding board allowing the user's foot to be secured temporarily to said board at a plurality of contact points which, on the binding, consist of attachment means intended to interact with complementary attachment means which are located on the shoe at the front and rear of the sole, wherein at least one of the contact points has a plurality of positions for locking of the attachment means of the shoe by those of the binding, intended to prohibit any movement of the shoe upward and to make it possible to change automatically from one locking position to the next in the downward direction of the shoe, under the effect of the user's weight.

Abstract: A gliding board has a raised platform which is intended to accommodate the toe piece and the heel piece of a safety binding on its upper part and which rests on the board via its central part. The platform has its front and rear ends overhanging relative to the upper surface of the board and not resting on the board. The platform has a torsional stiffness such that the maximum angular deformation of a free end under the effect of a twisting moment of four newton-meters exerted at four hundred and sixty millimeters from an engagement zone is less than one and a half degrees.

Abstract: A boot for a gliding sport, consisting of a bootie with a soft upper (1) and of an intermediate rigid sole (4) itself at least partially covered by a flexible walking sole (9), and provided with a transverse metal bar (6) for connection to a binding. The boot further has bearing surfaces on either side of the bar. At least in the foot sole region, the bearing surface is a projection (7) of the intermediate rigid sole.

Abstract: A board having a lower assembly composed of a sole optionally bordered by metal edges, a central core, and an upper cover forming a shell, composed of an upper wall extended laterally by side walls whose lower corners bear on two longitudinal reinforcement elements which themselves bear on the lower assembly. This board is equipped with at least one vibration damper element which is made of viscoelastic material and is located on one side of the board and emerges visibly on this side, and lies in the region contained between a lower corner of the upper cover and the lower assembly.

Abstract: Holding device comprising a body (1) mounted so as to slide in a rail (4) on which it is maintained in position by means of a lock (9) that is articulated to the body (1) and is provided with an unlocking lever (20). This unlocking lever is provided with two lateral flanges (21, 22) extending toward the rail, on each side of the central region of the latter. The flanges (21, 22) are preferably divergent and their rear edge (23) is inclined. This form of unlocking lever secures the lock against accidental unlocking in the event of impact.

Abstract: This invention relates to a core for a snowboard, made by the adhesive bonding, side by side, of a plurality of longitudinal bands whose height is that of the core and whose width preferably does not exceed 25 millimeters, each of these bands being made of a material constituted either by wood, by a synthetic foam or by a fiber-reinforced synthetic foam, the overall percentage of each of these three materials in the core thus constituted depending on the type of snowboard that it is desired to produce with the aid of this core.

Abstract: The boot is one wherein the rear part of its sole (13), between the heel and approximately the middle of the sole, and the lower rear part of the upper (12) are rigid, while the rest of the upper (11) and of the sole (16) are flexible. This boot makes it possible to walk with ease and can be fixed on a gliding board while perfectly fulfilling its function as an interface between the leg and the binding.

Abstract: A combination boot and skate having an interfacing mechanism for releasably securing the plate of the skate to the sole of the boot. A rigid stirrup piece is rotatably mounted in the plate having a contour that complements that of the upper part of the boot. The stirrup is rotatable to a boot engaging position and held in that position by a releasable lock to restrain the boot against lateral and longitudinal movement when the skate is in use.

Abstract: A board for gliding over snow is provided which is structured such that it has a central support region having a cross-section selected from the group consisting of the sandwich cross-section, the shell cross-section, and the hybrid cross section; a front region located between and connecting the central region and a tip; and a rear region located between and connecting the central region and a tail portion. The front region, central support region, and rear region each may have either a sandwich cross-section, a shell cross-section, and a hybrid cross section. The sandwich cross-section can have a first upper layer, a first upper reinforcement layer, a first core, a plurality of longitudinal reinforcing elements, a first lower reinforcement, a first sole, and a plurality of first edges.

Abstract: An interface is provided for connecting a sports boot with a gliding board. The boot has a tall, soft upper, a flexible sole with at least one longitudinal groove of trapezoidal cross section and four attachment points. The interface has (1) on the boot side, an outer profile of trapezoidal overall shape similar to that of the groove in the boot and which is intended to engage in the groove of the boot and (2) means of automatically attaching and locking the four attachment points of the boot. At the rear of the interface, an arm rises up approximately vertically and is equipped with means of connection to the back of the upper of the boot. The lower part of the interface has attachment means adapted to the particular type of gliding board.

Abstract: An assembly for gliding on snow, the assembly comprising a snowboard and a binding system for the boots of the user. The snowboard is provided with a large central depression defining two longitudinal lateral spars placed directly on either side of the depression. Anchor points are formed in said two longitudinal lateral spars. Respective intermediate plates for the front foot and for the back foot are fixed in the anchor points. The intermediate plate is provided in its middle zone overlying the depression with means for anchoring and fixing to the corresponding boot.

Abstract: A boot is intended for cross-country skiing, ice skating or roller skating, the boot including an upper that includes stiffeners. The boot has a cuff mounted on the upper so that the cuff can articulate forward and rearward. The boot includes two rivets having pins. The rivets are mounted on the stiffeners at a level with the malleoli of the wearer. There are included circular recesses in the cuff with the recesses facing the malleoli and the pins pass through the recesses. There is an arcuate groove located either on the outer surface of the upper or the inner surface of the cuff. There is an arcuate rib located on the cuff or upper opposite of the groove. The rib and the groove have the same radius centered on the pin whereby the rib moves freely in the groove.

Abstract: Ski binding comprising a toe piece and a heel piece slideably mounted on a slide (1) and respectively supporting two connecting arms (2, 3) providing a rack (19, 20) engaging respectively two gears (6, 7); an auxiliary gear means (8, 9) and a gear (7) displaceable, for example, vertically in a manner to be able to occupy two different levels in which it engages with two different gears, the binding elements being displaceable either symmetrically in opposite directions in a manner to enable the adjustment of the binding to the length of the boot without changing the central position of the boot relative to the ski, or in the same direction in a manner to be able to change the central position of the boot relative to the ski.

Abstract: This invention relates to a snow board especially provided for high speed performance in competition.It is slit, longitudinally and axially, at least in its front at rear parts. Furthermore, its simple flexural strength in the front and rear parts is increased by at least 20% with respect to the greatest stiffness existing at those spots for a conventional one-piece snow board, while its stiffness in the binding mounting area is rendered at least equal to the greatest stiffness existing at that spot for such a traditional snow board, and may even be greater by about 10%.

Abstract: The platform (1) comprises a rigid part (3) and an elastic part (4), the latter extending asymmetrically relative to the axis of the platform and continuously in a zone located above one of the edges (12) of the ski, which constitutes the outer edge of the ski, while the rigid part (3) is in direct contact with the ski on the side corresponding to the other edge (11), which constitutes the inner edge of the ski. A ski equipped in this way is less sensitive to edging mistakes.

Abstract: A gliding board including:a lower assembly (1) which constitutes the gliding sole (2) and may or may not be bordered by edges (3, 4);an upper assembly (5) comprising at least one outer layer forming the upper face (6) and the flanks (7, 8),a core (10) which is intended to fill the space contained between the lower assembly (1) and the upper assembly (5) and consists of an expanded polyurethane foam;at least one reinforcing element (15, 16) which is arranged under the outer layer (6) and/or on the sole (2) and is impregnated with a cross-linked resin;an intermediate bonding element (17, 18) interposed between the reinforcing element (15, 16) and the filling core (10), wherein said intermediate bonding element (17) consists of a porous sheet, coated and partially sealed on each face with a latex-based solution so that the face in contact with the core (10) is superficially impregnated with polyurethane foam, and the face in contact with the upper assembly (5) is superficially impregnated with the resin of the r

Abstract: The brake is constituted by a cylindrical body (18) mounted rotatably and movably radially to its axis (17) in relation to the chassis (1) of the skate so as to come into contact with the two rear wheels (4, 5) on backward flexion of the leg. The cylindrical body (18) is preferably mounted with vertical play on a lever (11) actuated by a collar (9) of the boot.