Abstract: A boot binding system for a snowboard includes a rigid heel support adapted for attachment to a heel of a boot. The heel support has a protruding member. A rigid ankle support is provided which is adapted for attachment along a rear spine of a boot. The ankle support is pivotally secured to the heel support, such that the ankle support pivots laterally, and flexes forwardly, while providing rigid support rearwardly. A heel binding is provided having an overlay member which overlays the protruding member thereby preventing the heel of the boot from being raised. A toe binding is provided which is adapted to secure a toe of a boot to a snowboard thereby preventing the protruding member from being moved relative to the overlay member.

Abstract: A binding for two feet in tandem on one ski that includes a boot for holding the front foot having a detachable toe holder and keeper member secured to the ski between the two feet for holding the forward boot heel. A further engageable member for the rear foot holds the keeper member for the heel of the forward boot when the rear foot is in position on the ski and releases the keeper member to free the forward boot heel should the rear foot be removed from the ski.

Abstract: Apparatus for use in combination with a snowboard to allow release of the snowboard binding straps from a location spaced from the snowboard. The release mechanism employed to delatch latch members connected to the binding straps may be either electrically or manually operated.

Abstract: A snow board parking brake apparatus for holding a snow board at rest during the time a snow boarder is attaching or detaching the snow boarder's boots to or from the snow board bindings. A function of this invention is to make snow boarding more enjoyable by 1) holding the snow board member stable on the snow while the snow boarder is attaching or detaching the snow boarder's boots and snow board bindings; 2) removing snow build-up on the snow boarder's boot soles; 3) providing a convenient handle to hand carry the snow board when the snow boarder is walking; and 4) providing convenient rings to attach a carrying strap to put over the snow boarder's shoulder or a padlock and chain assembly for security during storage of the snow board member. The snow board parking brake apparatus includes 1) a basic support base assembly secured to the snow board member; and 2) a main parking brake assembly mounted on the basic support base assembly.

Abstract: A brace shaped and dimensioned to receive the tip of a snowboard-riding boot is swivelingly mounted on the top surface of a snowboard to facilitate the carrying of the board while riding a ski-lift with one foot fully engaged in one of the boot-binding fixture and the other foot engaged into the brace.

Abstract: A coupling for releasably mounting a boot with boot binding to a turntable which is adjustably secured to a snowboard. The boot binding includes a plurality of extending lock pins each with a shoe releasably locking into arcuate slots in the turntable. The boot binding is quickly directed to the coupling with a set of guide pins protruding from the boot binding, which pods also serve as improved traction devices when the boot binding is disengaged from the turntable. Also extending from the boot binding plate is a latch pin held under spring bias which when aligned in a hold position, fits into one of several latch pin holes in the turntable. To release the plates from hold position, the latch pin is pulled from the latch pin hole by a flexible hand extension release device hand operated from a standing position and the plates are rotated to disengage the shoes from the arcuate slots.

Abstract: A binding unit (1) for gliding boards, such as snowboards, is composed of two support plates (2) and (3) which can be independently telescoped along the longitudinal axis of a boot. Each support plate is slidingly guided along this longitudinal axis in a guide element (4 and 5, respectively). Sole-holding shackles (7 and 9) are held laterally. The support plates are form-lockingly held in a position set to the boot length by starting from a central fixing element (6).

Abstract: A snow surfboard having symmetric construction, but endowed with asymmetric characteristics, a vibration absorption device, composed of at least one vibration absorption element (7, 8), inside or outside of surface (9) of the surfboard, having a relatively small mass, positioned asymmetrically so as to cause vibrations to be absorbed predominantly on the back side (4).

Abstract: A vehicle for travel on snow or water consisting of an elongated main member having a top and a bottom surface with a venturi effect. First and second runners extend lengthwise and downwardly along opposed edges of the bottom surface from a point spaced rearwardly of the front end of the member to a point spaced forwardly of the rear end of the member. The runners and bottom surface define the venturi section that tapers inwardly to a narrow throat in the vicinity of the middle of the member and then tapers outwardly. Elongated side cuts are provided to the elongated outside surfaces of the board, the side cuts creating a surface which is narrower in width between the front and the back of the surface.

Abstract: A snowboard with a recessed bottom and upturned edges is provided to house a specialized base. The base consists of a metal plate between the longitudinal edges of the bottom with a plastic coating over it. The base is slick when wet and resilient enough to resist blows and abrasion.

Abstract: Transport arrangements for cutting heads or the like have previously been configured as independent one or two-axle trailers upon which the implement could be deposited. The disadvantage is that thereby a self-supporting construction is required which entails high costs. In another known embodiment a two wheel trailer is attached to both the front and the rear end of the implement, which is costly and increases the length of the complete rig. The transport arrangement proposed consists of a draft tongue and a trailer, where the tongue is inserted into and secured to the implement and the trailer is attached underneath the implement. Transport arrangements of this type are used to transport agricultural implements.

Abstract: A motorized trackboard has a rear-mounted engine (4) which transmits rotary motion centrally to a rear-driven track (2) at each side of a trackboard platform (1). Different types of track, different types of gear means, different sizes and different human-factor accommodations are employed for different use-conditions. For some use-conditions, a rear track-drive wheel (3) is large and sturdy to support all weight on the trackboard for positioning weight on the rear to raise the front end for turning. A front track-support wheel (7) can be positioned higher than the axis of the rear drive wheel to provide a climbing incline (15). The front track-support wheel can be spring-tensioned in a forward direction to prevent track slack. It is an all-terrain vehicle that can be made small and light enough for child use or large enough for a seat for heavy use.

Abstract: A snowboard binding assembly comprising a fixed jaw to engage one side of a boot, and a slide jaw assembly to engage an opposite of the boot. An operating lever positions a slide jaw housing in a locking mode where the slide jaw assembly is fixed in locking engagement with the boot, an intermediate step-in position where the slide jaw housing can move laterally to a release position, and a disengaging position where the slide jaw housing is either positively moved to the release position or can readily be moved to the release position in opposition to the spring. In one preferred embodiment, a locking finger is mounted to a rotatable shaft connected to the positioning lever, and a cam finger causing movement of the slide jaw housing is mounted to the cam member.

Abstract: A wind powered vehicle including an operator platform having tilting and stationary sections coupled together via a plurality of hanger bearings and a longitudinal pivot axle. The platform section tilts with foot pressure applied at a stirrup to direct a forward steering assembly. The stationary platform section includes a resilient suspension and supports an opposite foot of the operator. The forward steering assembly provides a tilting, center biased steering turntable and axle. Adjustable axle bearing collar support and shock absorbers support forward and aft pairs of skis, wheels or runners which are tilted at opposite caster angles. The steering assembly, hanger bearings, cable truss supports and a sail coupler are each longitudinally adjustable along the length of the platform. In alternative configurations, wheels are mounted to the fore and aft axles; the platform includes spray guards; or the vehicle is constructed with water skis and the platform is constructed to provide flotation.

Abstract: A snowboard binding system having a binding plate, the bottom of which is supported on a snowboard. The plate includes a circular opening in its center which receives a disk shaped hold-down plate. The hold-down plate may be secured to the board in several different positions on the board with the binding plate assuming any rotational position with respect to the hold-down plate. Additionally, a highback support attached at the rear of the binding plate may be rotated along an axis generally normal to the binding plate (and therefore the board) and secured in its rotated position, to enable a rider to transmit forces to the snowboard from a variety of stance positions.

Abstract: A ski board provided with a front and rear ski is disclosed with the skis steerable through resilient coupling assemblies for each ski. A cantilever projects downwardly and forwardly from a mid-point on the ski board platform and serves to carry the front ski. H-shaped brackets connect each of the coupling assemblies to their respective ski. A bridle is attached to the cantilever to receive a tow rope and permits towing of the ski board over a variety of surfaces including sand without hindering board maneuverability.

Abstract: A binding for snowboards comprises a rotatable base plate (1) which, when mounted, is directly in contact with the surface of the snowboard (25). The base plate (1) includes a circular central opening (2) through which protrudes a circular fastening disc (14) formed with a projecting rim (15) which extends over the opening (2) in the base plate. The fastening disc (14) is adapted to be threadedly engaged with the snowboard (25), thus pressing the base plate against the snowboard. The fastening disc has oblong holes (18, 19, 20, 21) which allow longitudinal shifting of the entire binding.

Abstract: A platform member formed of a plurality of elongate slats in contiguous communication relative to one another includes a forward, rear, and medial support bar that are mounted to a respective forward brush bow, forward right and left support legs, and a handle construction respectively. The organization includes a plurality of junctions, each junction including a discrete and unique connector structure to effect ease of assembly and securement of the components of the organization in an integral assemblage.

Abstract: A snowboard binding system is disclosed which uses a pair of cables extending from spaced points on a first forward boot plate to corresponding spaced points on a second rearward boot plate, with each cable passing through independent tensioning means for preventing movement of the boot plates under normal loads occurring as a snowboarder is maneuvering. When an abnormal load is encountered by one boot plate, the retaining force applied by the tensioning means is overcome and both boot plates are conditionally releasable, but not separated from the snowboard. The cable binding system also allows automatic return of the plates to the snowboard where they are held against movement when the abnormal load is reduced to a normal level.

Abstract: A binding mounting apparatus having a baseplate which is mounted to a board surface of a snowboard or the like. A pivot stem with an enlarged head portion is secured to the baseplate. A mounting plate has at least one mounting through hole and a stem through hole. The pivot stem is positioned within the stem through hole. Such stem through hole is sized large enough for the pivot stem to fit within the stem through hole and small enough for the enlarged head to prevent the mounting plate from moving beyond or traveling over the enlarged head portion when the apparatus is tightened. A riser ring is positioned about the mounting plate. A face plate is mounted on the riser ring. The face plate has at least one face plate through hole which can be aligned with a corresponding mounting through hole so that the binding mounting apparatus can be tightened with respect to the board surface and so that all elements of such apparatus can be tightened with respect to each other.

Abstract: A binding adapted for use with hard shell boots which allows the rider or shredder to laterally move and axial rotate the boot when connected thereto. The binding is essentially stepin type binding comprising a flexible heel piece, a heel plate, and a semi-rigid toe piece. A strap structure is attached to the flexible heel piece which enables the shredder to adjust the tension thereof. The heel plate is mounted to the inside surface of the flexible heel piece and holds the rear portion of the boot downward in the binding. In addition, the heel plate allows the shredder to laterally move, and if pivotally mounted, allows axial rotation of the boot while connected to the binding. An optional base member may be interposed longitudinally between the semi-rigid toe piece and the flexible heel piece.

Abstract: An ice skateboard comprising an elongated platform having secured to the front and rear portions of the underside conventional skateboard trucks, with transverse axles supported by a structure facilitating slight controllable swinging movement of the axle in response to the shifting of weight on the platform, wherein each of the front and rear axles rotatably supports at opposed ends thereof elongated skate blade mounting units in a manner to be parallel to the center line of the platform, and each of the mounting units bearing a skate blade protruding in a direction away from the platform, the exposed edge of each blade having a front to rear contour of slightly convex curvature and a transverse contour of markedly concave curvature providing closely spaced ice gripping edges, and the mounting units for said blades being so fashioned as to provide a cant to the blades of at least 5.degree., thereby convergently orientating the mounted blades.

Abstract: In accordance with the invention, a kinematically correct safety release binding is provided.

Abstract: A snowboard release binding consists of a boot holding plate which has vallate indents to engage a nipple in the release unit. As the boot holding plate is placed over the release unit, the nipple is depressed which allows the boot holding plate to be secured to the release unit. When the boot holding plate is twisted, turned or lifted in any of twelve angles of release, wall extensions around the vallate indent force the nipple to retract, thus freeing the rider's first foot from the snowboard. The second foot is similarly and instantaneously released, preventing injury by releasing the feet before damaging stresses can be applied to the legs and structure of a rider. A ski brake is also developed to prevent further travel of the snowboard, and when used in conjunction with a self-containing strap, will prevent injury to the rider and other skiers or snowboarders in the immediate area.

Abstract: A binding for a snowboard has a base, side members extending upwardly and rearwardly from the sides of the base, towards the back of the base, with an arcuate member joining the rear ends of the side members. Fastening means on one side member and on one side edge of the board at the front provide for attachment of one end of each of two straps. Fastening means on the other side member and on the other side edge serve for attachment of a locking bar which in turn connects the other end of each strap to the side member and base. Attachment means are provided in the base for attachment to a snowboard. A snowboard for use in conjunction with the binding has a forward attachment position which provides for attachment of a binding inclined in either direction as desired, that is forward and to the right or forward and to the left, as desired, at about 45.degree.. A rear attachment position provides for attachment of the binding transverse of the board.

Abstract: An improved snowboard (10) having a convex bottom (44) with a flat area (28) formed therein to extend from the tail (16) to at least the nose (18) to facilitate balancing of the snowboard (10) and improve performance when cornering. An improved snowboard (23) illustrates the convex bottom (36) smoothly tapering into the body 34 at the longitudinal midpoint (50) to form a flat bottom (52) that then extends to the tip (44). To provide additional control and stability, a keel (56) extends from the flat bottom (52) a distance no further than the convex bottom (36) and having a width between 2% and 4% of the width of the body (34).

Abstract: A mono-ski for alpine skiing to which both of the skier's boot bindings are mounted such that the skier's boots are side-by-side, close together and both facing forward. The widest part of the forward or shovel area of the mono-ski is 30 percent or more wider than the narrowest part of the central or waist area of the mono-ski. The mono-ski has concave side cuts which are 3/4 of an inch or more. The forward or shovel area of the mono-ski slopes gradually upward over at least the forward 15 percent and the rear or tail area slopes gradually upward over at least the rear seven percent of the total length of the mono-ski. The skier's boots are positioned rearward of the center, the thickness of the mono-ski is greatest at the central or waist area, the bottom is flat transversely without grooves and the mono-ski has camber. The bottom running surface should be of polyethylene or similar material.

Abstract: A binding apparatus for a pair of boots of a skier on a snow-sliding board, such as a surf board or a monoski. The apparatus includes a front and rear passive type of binding assemblies, not including individual elastic biasing mechanisms. The binding assemblies are linked to one another via a common energizing mechanism placed between the two assemblies and include, in a central part of the mechanism, an energizing mechanism which is connected, via flexible linking devices, to movable parts of the individual binding assemblies, which include the retention jaws for the skier's boots.

Abstract: A device for temporarily gripping the booted foot of a snowboard user to provide the user with steering control of the snowboard. The temporary foot gripping device of the present invention does not replace the traditional bindings on snowboards, rather it supplements the bindings to give the snowboard user a means of temporarily securing the foot yet providing for quick and easy release so the foot may be used to push off against the ground. The device is designed to be securely fastened to a snowboard. The device is most useful to snowboard users when they are traveling over level ground in a "push and glide" sequence of motions, when the snowboard user is queueing for and mounting a ski lift, and riding the ski lift.

Abstract: A snowboard has two boot bindings in the form of plate bindings (11, 11'), arranged at a considerable angle to the longitudinal direction of the board. The release mechanisms of the two plate bindings (11, 11') are coupled together in such a way that during release of the one plate binding (11, 11') the release force for the other respective plate binding (11', 11) is at least substantially reduced.

Abstract: The ski structure has a front ski and a rear ski, vibration dampers and a mechanism for converting a lateral pressure into a rotary motion, associated with one of the skis. The front and rear skis can be temporarily mutually loosely interconnected by at least one tab and can be rigidly interconnected by a removable mechanical bridge. Thus, the rear ski follows the direction assumed by the front ski, and the ski structure can be disassembled for easy transport.

Abstract: A releasable binding assembly for a gliding board such as a monoski or snowboard which includes a pair of binding elements, each of which includes a mechanism for elastically retaining a shoe or boot and for releasing the shoe or boot upon the exertion of a biasing force exceeding a predetermined threshold. Each binding element includes a member which is movable against an elastic biasing force from an armed position in which a respective shoe or boot is retained on the board and a disarmed position in which the shoe or boot is permitted to be released. A linkage apparatus is provided so that upon release of one shoe or boot, the magnitude of the force which retains the other shoe or boot is reduced or eliminated to facilitate the release of the other shoe or boot.

Abstract: A binding for two feet in tandem on one ski that includes a boot for holding the forward foot having a detachable toe holder and a movable retainer secured to the ski between the two feet for holding the boot heel. A foot-engaging member for the rearward foot holds the retainer forward when the rearward foot is in position on the ski, and releases the retainer to free the boot should the rearward foot be removed from the ski.

Abstract: A binding for two feet in tandem on one ski that includes a boot for holding the front foot having a detachable toe holder and a movable retainer secured to the ski between the two feet for holding the boot heel. A foot-engageable member for the rear foot holds the retainer forward when the rear foot is in position on the ski, and releases the retainer to free the boot should the rear foot be removed from the ski.

Abstract: A binding arrangement for use with a gliding board, such as a snowboard or monoski. The binding arrangement includes a first releasable binding for rigidly affixing a first boot to the gliding board and a second releasable binding for rigidly affixing a second boot to the gliding board. Each of the releasable bindings includes an intermediate plate affixed to the boot, and a base affixed to the gliding board. The intermediate plate is retained on the base in a releasable manner by a retention mechanism which includes a fixed abutment rigidly affixed to the base, and an abutment movable with respect to the base. The movable abutment can be activated between an armed position, in which the retention mechanism elastically retains the intermediate plate, and an unarmed position, in which the retention mechanism permits the release of the intermediate plate.

Abstract: The plate release binding for winter sports devices comprises a mobile binding plate (1) of oblong basic outline with a widened mid-section and a vertical central bore (28). The entire engagement and disengagement mechanism, mainly comprising pressure springs (12) and pressure pistons (13) is built into the compact plate into a minimum of space below the area of the boot sole. The binding plate is engaged with the fixed mounted hub (2) on the snowboard by a downward and turning movement of the foot. The hub acts as the only anchoring device for each binding and at the same time also as the central rotational, pivotal and guiding axis for the multi-directionally turning , tilting and lifting movements of the plate.

Abstract: A releasable foot binding for use in combination with a snowboard includes a socket component which is separably engageable with a foot-engaging component. The socket component is mounted on the snowboard and includes spaced-apart, upwardly-extending elongated side rails. Each side rail has an elongated flange portion extending laterally therefrom. The foot-engaging component is longitudinally engageable with the socket component and has a bottom which includes opposite side ribs positioned on the bottom to be slidably positionable below the flange portions of the socket component. A stop member limits movement of the foot-engaging component relative to the socket component beyond a fully-engaged position. A latch releasably secures the foot-engaging component against movement in the opposite longitudinal direction.

Abstract: This invention is a device for pivotally mounting a snow boot binding on a snowboard on the upper surface of a snowboard, and by virture of a manually operated handle, allows the bindings to be changed in any direction desired and thereafter, with the flip of the handle, locked into the selected position. It includes a swivel plate on which the binding is mounted having a groove about the circumferential edge thereof wherein a flexible cable in placed and tightened by a locking device between positions allowing the plate to be freely rotated and a locked position against further movement, and further including a series of flexible bushings to absorb vibration and to flex when the user shifts his or her body weight.

Abstract: The safety strap of the invention includes a fastener which is secured to a snowboard, and a length of cable, having a loop at each end thereof. One of the loops is secured to the fastener while the other end has an attachment device secured to it. A leg strap is worn by a snowboard user. The strap is secured about the user's leg and has a connection thereon for receiving the attachment device at the other end of the cable.

Abstract: A surfboard for surfing on snow has an hourglass profile including dimension lines curved inwardly in the runner zone, and wherein bindings each form an angle with a line perpendicular to the longitudinal axis of the surfboard. Both dimension lines are offset longitudinally with respect to each other and are positioned so that the most curved point of each dimension line is located on the axis of symmetry of the axes passing through the two bindings.

Abstract: A binding assembly for a structure which is designed to facilitate rapid movement along the surface of the earth such as a ski board for water wherein the binding assembly includes an elastic cord which when stretched permits tightening of the binding assembly to thereby securely clamp the user's foot to the structure. Once the binding assembly has been adjusted to the desired amount of securement, release of the elastic cord results in the binding assembly remaining in that established level of securement.

Abstract: A mono-ski for alpine skiiing to which both of the skier's boot bindings are mounted such that the skier's boots are side by side, close together and both facing forward. The widest part of the forward or shovel area of the mono-ski is thirty percent or more wider than the narrowest part of the central or waist area of the mono-ski. The mono-ski has concave side-cuts which are three-quarters of an inch or more. The forward or shovel area of the mono-ski slopes gradually upward over at least the forward fifteen percent and the rear or tail area slopes gradually upward over at least the rear seven percent of the total length of the mono-ski. The skier's boots are positioned rearward of the center, the thickness of the mono-ski is greatest at the central or waist area, the bottom is flat transversely without grooves and the mono-ski has camber. The bottom running surface should be of polyethylene or similar material.

Abstract: A motorized skiboard includes a skiboard having a central opening with a drive belt mounted in said central opening and driven by a motor and encased and held in a drive belt housing. First and second foot mounts rest on said housing on either side of said motor. The first foot mount is mounted on a piano hinge and is connected to a throttle cable so that pivoting the foot mount controls the motor. The drive belt is formed from a plurality of trapezoidal linkages with pivotally attach drive bars. When the motor is moving the belt at a speed greater than the speed at which the board is moving (when the belt is propelling the skiboard) the drive bars pivot into a ground engaging position. However, when the skiboard is sliding downhill and moving faster than the speed of the belt the drive bars pivot into a non-ground engaging position permitting the board to freely slide down the slope of a hill.

Abstract: A snowboard binding has a shoe base plate with side walls and is provided with a single restraining strap to which is attached an instep pad that has a sustantially rigid portion that normally extends from the toe area of a foot to the lower shinbone. The pad may be adjusted up and down and allows for movement of the foot of the user. The pad is also adapted to have its curvature changed to suit certain maneuvers.

Abstract: A modified snowboard (10) having transverse channels (28) formed in a convex bottom (14) to facilitate movement through the snow. The sides (46) and (48) project beyond the bottom (38) of a snowboard (36) to form longitudinal grooves (54) with downwardly extending edges (56) to increase maneuverability and stability of the snowboard both at slow and high speeds. Upwardly projecting flanges (74) extend the length of the sides (64) and (66) of a snowboard (62) to prevent snow from moving over the top (72).

Abstract: A step-in binding for snowboards secures a rider's foot such that it can only be manually released. Ridge-entrapping members on the snowboard define opposed pockets. The pockets receive oppositely extending longitudinal ridges that are a part of a boot or harness apparatus which attaches to the rider's foot. A spring-loaded latch, operable by a camming mechanism as a rider is stepping in, engages and secures one of the ridges.

Abstract: In a board for snow skiing comprising an elongated blow-molded plastic ski ody. The body includes a top and a bottom wall and reinforcements extending therebetween. First and second spaced apart bindings are mounted to the board for respectively receiving a front and a rear foot of a rider of the board. The bindings each comprise a pair of flexible plastic bands which are fixedly mounted at a first end part thereof to the board in a spaced and substantially parallel relationship. The bands also include at a second end part thereof a cooperating fastening device. Each binding also comprises a strap having each of two ends thereof attached to one of the bands for securing a back part of the foot of the rider to the binding.

Abstract: This invention relates to a rider responsive boot binder attachment mechanism that enhances the maneuverability and responsiveness of a snowboard to rider movements. A pair of first plate members 15 are secured in spaced relationship to a snowboard, a pair of second plate members 20 are rotatably secured, one each, to the first pair of plate members and boot binder mechanism 14 attached to each of the second plate members at the desired angulation therewith. Elastomeric structure in the form of elongated spiral springs 24,26,28 and 30 are disposed between each connected first and second plate to limit relative rotation therebetween and to exert a force on the plates to effect return to an original preset position after the plates have been rotated relative to each other by rider applied torque action.

Abstract: Safety fastenings for snowboards are mounted transversally with respect to the longitudinal axis of the board, characterised by the fact that they are provided with interdependent automatic releases, connecting two twin fastenings. The releases are brought into the "active" position i.e. with fastenings fixing the skier's ski boots and are provided with an actuating element such as a lever or a push button placed under the sole of each ski boot, which by means of mechanical, hydraulic or pneumatic connectors, is connected to the releases. The actuating elements are subject to the weight of the skier and remain in an inactive position when pressed but cause the opening of the twin fastening immediately if, for any reason, the pressure transmitted by a ski boot ceases.

Abstract: A releasable binding system for the sport of snowboarding includes releasable toe and heel binding clip means secured to forward and rear ends, respectively, of the ski board and simulated toe and heel members for releasable engagement with the releasable toe and heel binding clips along an axis parallel to the longitudinal axis of the ski board. The simulated toe and heel members are secured, releasably or permanently to the booted feet of a rider. In one preferred embodiment, the release of one ski boot binding is sensed and causes the substantially simultaneous release of the other ski boot binding. In a further embodiment, an attachment is provided for converting a boot to snowboarding has a sole plate adaptor releasably secured to the sole of the boot with a releasable binding plate member having simulated toe and heel members which is adjustably coupled to the releasable binding plate member so that the simulated toe and heel members project laterally relative to the sole of the boot.