A combination ski and binding plate apparatus comprising a first and second mounting plate assembly for supporting mounting plates for boot bindings and for operably linking a pair of skis. The first and second mounting plate assemblies each comprise a four bar linkage assembly including a first inner bar and a first outer bar operably secured to a mounting plate. The first inner bar is pivotally secured to the first outer bar. A rear linkage assembly including a rear inner bar and a rear outer bar are operably secured to the mounting plate. The rear inner bar is pivotally secured to the rear outer bar. Both the front linkage assembly and rear linkage assembly are secured to both skis allowing the skis to pivot and move about a central pivot point allowing a downward pressure or force on either side of the mounting plate to be translated into an upward force on an opposite side of the plate providing an upward lifting force to a ski edge beneath the opposite side of the plate from which the downward or force is exerted on the plate resulting in a parallel synchronized motion with outside and inside edges of the skies always maintaining the same position relative to each other.
Ski apparatus with two outer skis and a third ski, located between the two outer skis, coupled to the outer skis by four cranks, connected as a front pair and a rear pair. Each crank has a gear on one end and a free end. The free end of a crank is attached to a journal box on an outer ski to permit the crank to rotate freely. The gear of the crank from one outer ski meshes with the gear of a crank attached to the other outer ski, coupling the cranks in pairs and causing the cranks to rotate in opposite directions. The gears from each pair are contained in a gearbox attached to the third or middle ski. In one embodiment, the journal box may be slidably attached to the ski, to permit the ski to move forward and backward relative to the journal box, thereby permitting the user to alternately advance and retreat the skis relative to each other. In another embodiment, ski bindings are attached to the center ski by means of a linkage to allow vertical movement of the ski bindings relative to the center ski, thereby allowing the ski apparatus to be canted without the ski bindings interfering with the outer skis.
The present invention discloses a sports device for sliding on an underlying surface, in particular a winter sports device, having parallel skates having sliding surfaces, at least one connecting member running transversely with respect to, and jointedly interconnecting, the skates such that the sliding surfaces of the skates lie substantially parallel to each other, a standing plate and at least one swivelling lever for securement of the foot engaging device on each connecting member, wherein each swivelling lever is articulated jointedly on the connecting member by means of an offset axle member for producing an acentric swivelling axis, wherein on each connecting member (crossbar) there are arranged at least two swivelling levers symmetrically and eccentrically with respect to the longitudinal axis of the winter sports device on each side, and wherein the swivelling levers are arranged in plan view at least partially outside the eccentric swivelling axes, which represent the connection between connecting member (crossbar) and swivelling lever.
A snowboard-type ski system and apparatus utilizing two skis and rotary linkage to provide the skier with the natural feel of snowboarding and the response and control of two skis. The system coordinates and maintains parallel alignment, vertical motion, and consistent horizontal separation of the two skis through the use of two linkage cranks which rotate about an axis transverse to the direction of travel intended for the two skis. The linkage includes an elevated mounting assembly positioned between the two skis and above the snow upon which a skier may mount bindings. The points of attachment and rotation are between the skier's feet such that the point of attachment to the two skis is proximate to the ski manufacturer's intended loading point. The transverse rotary motion permits the two skis to cant with respect to one another, as the skier enjoys rough terrain, and maintains' natural motion and transfer of force between the two skis.
Alpine ski (1) having a sidecut (9) which has a radius smaller than 24 meters, wherein the front (10) and/or rear (18) ends have a cavity (11, 15) opening longitudinally at said end, the dimensions of the cavity (11, 15) allowing the deformation of said end when a transverse force is exerted at the front and/or rear contact lines so as to permit the inner and outer edges of the ski to move closer to one another.
A multi-edge snowboard includes multiple boards with attached bindings. A pivot mechanism that connects the bindings to the boards rotates each board, so that each board can provide an active edge that engages the snow during turning or stopping. The increase in the number of active edges relative to a conventional snowboard improves the performance of the multi-edge snowboard, while the binding structure retains the feel of a conventional snowboard.
