Abstract: A vehicle steering structure includes a steering column, a bearing, a frame and a wheel steering assembly. The bearing includes an outer ring with an inner spherical surface and an inner ring with an outer spherical surface, the inner ring is arranged in the outer ring, and an outer circumference of the outer ring is connected to the frame. The steering column passes through the inner ring, and has a first end connected to the steering control part and a second end connected to the wheel steering assembly. The vehicle steering structure may be applied in an all-terrain vehicle.

Abstract: A personal mobility device includes a frame connected to at least one wheel, a connection part on the frame, a boarding part connected to the connection part to be tiltable, a first sensor disposed on the frame to measure an inclination of the frame, and a second sensor disposed on the boarding part to measure an inclination of the boarding part.

Abstract: An improved snowmobile ski dampener for dampening articulation between a steering spindle and a snowmobile ski. The ski dampener may be constructed of an elastomeric material and include one or more progressive surfaces that progressively come in contact with a base surface of the steering spindle as progressively increased compressive loads are applied between the steering spindle and snowmobile ski. As the progressive surfaces come in contact with the base surface, the shape factor of the ski dampener may change (e.g., increase), reducing compressive strain for a given compressive stress. Various design and material characteristics including width, shape of the progressive surface, and durometer and bulk modulus of the elastomeric material may be selected to provide various performance characteristics such as dampening effect, impact absorption, approach angle, initial flex force, and service life.

Abstract: A ski having vents for venting snow from beneath the ski to a location above the ski and a modified keel that provides for greater and easier directional control over the ski relative to a conventional ski.

Abstract: An improved snowmobile ski dampener for dampening articulation between a steering spindle and a snowmobile ski. The ski dampener may be constructed of an elastomeric material and include one or more progressive surfaces that progressively come in contact with a base surface of the steering spindle as progressively increased compressive loads are applied between the steering spindle and snowmobile ski. As the progressive surfaces come in contact with the base surface, the shape factor of the ski dampener may change (e.g., increase), reducing compressive strain for a given compressive stress. Various design and material characteristics including width, shape of the progressive surface, and durometer and bulk modulus of the elastomeric material may be selected to provide various performance characteristics such as dampening effect, impact absorption, approach angle, initial flex force, and service life.

Abstract: Sliding device (1) for sliding on snow, whereby the sliding device (1) includes at least two skis (2) that extend in a longitudinal direction (L), whereby the at least two skis (2) are mounted next to one another and parallel to one another, whereby the at least two skis (2) are tiltable around separate horizontal axes of rotation (H) that are parallel to the longitudinal direction of the skis (2), whereby the sliding device (1) includes at least one support (7) that is rotatable around a vertical shaft (9), whereby the sliding device (1) is provided with a transmission (10, 11, 12) to convert a rotation movement of the support (7) around the vertical shaft (9) into a tilting movement of the skis (2) around their respective axes of rotation (H).

Abstract: An ice skateboard comprising a skateboard having a top surface, a bottom surface, side edges, and a front and back section, said ice skateboard having an ice blade assembly attached to the bottom surface, said ice blade assembly comprising a mounting plate having at least one integral ice blade that extends outwardly at substantially right angles from said mounting plate.

Abstract: A snow vehicle propelled by gravitation has a frame supported by four posts attached to four skis. The two rear skis are attached to the supporting posts using hinges with one degree of liberty. The two front skis are rigidly attached to the support posts and the posts are attached to the frame at a 45 degree angle using hinges with two degrees of liberty. Two linear actuators are attached to the frame and to the rear of the front skis using hinges with two degrees of liberty. The actuators are remotely controlled by a human using an on board computerized steering/braking controller that works in such a manner as to replicate the human wedge style of skiing (a.k.a. plow skiing).

Abstract: A snowmobile ski comprises a body having a pair of rails laterally spaced from one another and interconnected at a tip. A spindle assembly connects the ski to suspension elements of the snowmobile. The spindle assembly has a pair of legs connected to respective rails to allow snow to pass between the legs.

Abstract: The invention is made up of an intact interiorly hollow body portion unit having a flat posterior side, a flat topside and a flat, laterally curvaceous bottomside together with correspondingly curvaceous lateral sides extending from the locus of the posterior side and tapering to frontal edging. It has a pair of arched handle units affixed to the topside and three elongated runner units affixed to the bottomside thereof. There is an elongated strut glued to interior walling of the bottomside that runs from the posterior side to the frontal edging collinearly with the medially positioned one of the three runner units. The handle units are affixed to the flat topside via screws into centerholes within each one of each of two pairs of support stud units located interiorly within the body portion unit, and; the three runner units are adhesively affixed parallelwise to exterior walling of the flat bottomside.

Abstract: A snow sled has a seating portion having a lower portion that is configured to slide on snow. The sled also includes a steering portion formed separately from the seating portion and having a ski support, a single front ski, and an arm having opposing ends that are pivotably coupled to the ski support and the front ski. The sled further includes a steering mechanism pivotably coupling the seating portion and the ski support of the steering portion. The pivotable couplings between the arm and the ski support and the front ski, together with the pivotable couplings between the steering mechanism and the seating portion and the ski support, are configured to allow for the front ski to be folded and stored under the seating portion. A braking member can also be provided at each end of the opposing ends of the ski support.

Abstract: A bicycle ski attachment assembly provides a ski vehicle that positions a rider similar to being on a conventional bicycle including similar rider height and movable pedals. The assembly includes an elongated front ski and an elongated rear ski. A front ski support has a front hub. A front axle assembly is coupled to the front hub and is configured for coupling to front forks of a bicycle. A rear ski support has a rear hub. A rear axle assembly is coupled to the rear hub and is configured for coupling to rear dropouts of the bicycle. A chain pulley is coupled to the rear axle assembly. The chain pulley is configured for receiving a chain from the bicycle under tension whereby the chain pulley provides resistance to pedaling pedals on the bicycle.

Abstract: Skibobs are disclosed having features for conveying the skibob with rider on a moving chairlift while the rider remains mounted on the seat of the skibob. The frame and suspension are configured for elevating the underside of the skibob seat above the level of the chairlift bench during loading, so that the chairlift bench, while moving forward from behind the rider, can pick up the skibob, rider and all, and carry the mounted rider up the ski slope without falling. As the undercarriage of the skibob is lifted off the snow, the rider is deposited on the chairlift bench so that the seat of the skibob is secured in place by the weight of the rider on the seat.

Abstract: Skibobs are disclosed having features for conveying the skibob with rider on a moving chairlift while the rider remains mounted on the seat of the skibob. The frame and suspension are configured for elevating the underside of the skibob seat above the level of the chairlift bench during loading, so that the chairlift bench, while moving forward from behind the rider, can pick up the skibob, rider and all, and carry the mounted rider up the ski slope without falling. As the undercarriage of the skibob is lifted off the snow, the rider is deposited on the chairlift bench so that the seat of the skibob is secured in place by the weight of the rider on the seat.

Abstract: The present invention generally relates to snowmobiles. More particularly, the present invention relates to skis for a snowmobile.

Abstract: The invention relates to a vehicle (1) including a user seat comprising a backrest (3), a seat portion (4) and lateral edges (5) provided on both sides of the seat portion. The vehicle has a reduced production cost and a structure that facilitates the adaptation thereof to a plurality of activities, in particular owing to the fact that the seat, which is made from plastic, is produced in the form of a single piece, the lateral edges (5) being extended downwards such as to form two rear conduits intended to receive at least one rear movement member (26, 27, 28). The invention also relates to a vehicle production method in which rotational moulding is used to form an ergonomic seat.

Abstract: A kneeling/sledding snow board apparatus provides a retention device connecting to a gliding board. The retention device has a tray mounted to a mounting device connected possibly with snow board binding connections. The tray receives a knee pad having a seat extension extending up from a mid portion of the knee pad. Cutouts allow the rider's legs to extend therethrough. A lap and knee straps restrain the legs of a rider along with vee straps. The tray preferably tapers upwardly and outwardly from a base to provide somewhat of a U-shaped cross section which may assist in deflecting snow and providing increased comfort to a rider.

Abstract: A seated skiing device having an adjustable heel protrusion and a fixed toe protrusion is provided. The distance between the toe and heel protrusions are adjustable such that the seated the skiing device may engage toe and heel bindings of a snow ski set to a riders ski boot. In this manner, the seated skiing device is engageable to the snow ski of the rider without any additional tools. Also, a seated snowboarding device is disclosed herein. The seated snowboarding device is removably attachable to standard front and rear bindings of a snowboard.

Abstract: A snow vehicle includes a vehicle body, an arm member supported with respect to the vehicle body, a knuckle supported with respect to the arm member at a predetermined support point, a coupling unit arranged to couple the knuckle to the arm member, a ski member, and a ski coupling unit. The ski coupling unit couples the ski member to the knuckle such that the ski member pivots about a pitching axis with respect to the knuckle, the pitching axis extends in a width direction of the ski member. The pitching axis is disposed such that, when the vehicle is in a reference attitude of being placed on a horizontal surface, a horizontal distance from the pitching axis to a reference normal directed to the horizontal surface from the support point is shorter than a horizontal distance from the pitching axis to a steering axis.

Abstract: A vehicle for use on the snow or other surfaces includes a frame and a fork assembly pivotally connected to the frame. The fork assembly is pivotally connected to a front board, and the frame is connected to a rear board. An inverted and reversed skateboard truck is used to connect the fork assembly to the front board. A biasing member urges the front board into a nose up angle. The frame is connected to the rear board by a U-shaped stay mount, and a shock absorber is connected between the frame and the stay mount. The combined front and rear boards have the shape of a snowboard.

Abstract: Skibobs are disclosed having features for conveying the skibob with rider on a moving chairlift while the rider remains mounted on the seat of the skibob. The frame and suspension are configured for elevating the underside of the skibob seat above the level of the chairlift bench during loading, so that the chairlift bench, while moving forward from behind the rider, can pick up the skibob, rider and all, and carry the mounted rider up the ski slope without falling. As the undercarriage of the skibob is lifted off the snow, the rider is deposited on the chairlift bench so that the seat of the skibob is secured in place by the weight of the rider on the seat.

Abstract: A recreation device, used for sliding downhill on a surface, on which the rider is suspended above the surface, either in a generally horizontal position—face up or face down—or in a reclined position, thereby providing the rider with a unique experience or sensation. The winter recreation device comprises a slide member having a top and a low friction bottom adapted for sliding on the surface, a support connected to the top of the slide member and extending upward away from the slide member, and a harness suspended from the support, wherein the support and harness are adapted to suspend a user of the apparatus above the surface.

Abstract: A sledge hockey device including a seat portion and an undercarriage portion that includes a pair of elongate blade support portions each having a first upper contact surface region, provided for communicating with a second lower contact surface region of a transverse support portion. A pair of transverse support portions are provided. The first upper and second lower contact surface regions also include a plurality of complementary engagement formations to provide a positive engagement and lateral indexing between the elongate blade support portions and the transverse support portions. The elongate blade support portions and the transverse support portions are maintained in engagement by a plurality of coupling members.

Abstract: A vehicle includes a deck, an aft running gear attached to the deck, a steering assembly, a flexible joint attaching the steering assembly to the deck, such that the steering assembly is pivotable about the flexible joint with respect to the deck between a rider-standing mode and a rider-sitting mode, and a brake assembly attached to the deck.

Abstract: A description is given of a ski sledge having a swiveling front ski (1) with steering means (6), two essentially mutually parallel rear skis (2, 3) and a seat (4) connected via one or more rods (7) to the steering means, where the rear skis (2, 3) are connected to the sledge by means of a parallelogram arrangement.

Abstract: A snow bike has a frame which can be either a custom frame or an existing bicycle frame. A pair of footrests consisting of two rods extending perpendicularly from the frame at a location usually set for the pedal means of a bicycle provides a user with a way of resting his feet while using the snow bike.

Abstract: A ski vehicle for traveling along a surface is disclosed. The ski vehicle includes a frame comprising a seat supporting member; a steering column rotatably coupled to the frame; a front ski, coupled to the steering column; a rear ski, coupled to the frame, the front and rear skis for supporting the ski vehicle on the surface; and a seat, coupled to the seat supporting member of the frame, for supporting a rider, the seat supporting member of the frame having sufficient length to allow a ski lift chair to slide thereunder. The ski vehicle has a minimum design rider weight, and the weight distribution of the vehicle is selected so that the vehicle is secured on the ski lift chair when the seat is slid over the chair and a rider of at least the design rider weight is sitting on the seat.

Abstract: A method of propelling a wheeled platform, which includes creating a source of energy upon a first change in orientation of the platform around an axis approximately parallel to a longitudinal axis of the platform and wherein the platform rotates around the axis. The source of energy is stored and released to propel the wheeled platform upon a second change in orientation of the platform around the axis.

Abstract: A sledge hockey device comprises a seat portion and an undercarriage portion. The undercarriage portion includes a pair of elongate blade support portions. Each elongate blade support portion has a first upper contact surface region, and a pair of transverse support portions, while each transverse support portions has a second lower contact surface region. The first upper and second lower contact surface regions being provided with a plurality of complementary engagement formations to provide a positive engagement between the elongate blade support portions and the transverse support portions and a plurality of coupling members for coupling the elongate blade support portions with the transverse support portions.

Abstract: A snow sled comprising a seating portion that includes a lightweight space frame having a suspension-type seat stretched among the space frame. The sled further includes a steering portion and articulated steering mechanism that links the steering portion to the seating portion. The articulated steering mechanism allows the steering portion to be pivoted laterally relative to the seating portion so as to make the sled readily steerable. A pair of rear skis are removably attachable to the seating portion. The steering portion includes a ski support and a pair of front skis pivotably attached to the ski support. Chatter and movement of the front skis are dampened by a pair of boots that engage the ski support and the respective front skis.

Abstract: A snow-sliding vehicle including a bearing rear runner and a directional front runner to which is connected a steering column pivoting in a sleeve firmly attached to the upper end of a stiff frame connecting both runners, and the lower end of which is attached to a supporting base surmounting the bearing runner and provided for supporting the feet of the user. The front portion of said base is connected to the bearing runner by a mechanical connection providing it with clearance ostensibly perpendicular to said runner controlled by a damping device.

Abstract: The invention features a soft foam sled board for use by a sitting or kneeling rider to slide over a snow or ice covered surface. The sled is prepared from a shaped polyethylene foam core, and at least the bottom surface of the core is covered by a slick, polyethylene film/polyethylene foam sheet laminate which provides little frictional resistance between the sled board and sliding surface, and provides an impervious outer surface to the board so as to resist puncture and water infiltrate. The sled board has one or more rails, ribs, or fins embedded below the body weight of the rider so as to either protrude from, or jut into, the board. The fins enhance the ability of the sled board to travel down the hill in a straight, forward direction.

Abstract: A steerable snow sled has a forward section pivotably joined to a rear section, with metal runners attached to the bottom of both sections. A steering arm is attached to the forward section. The forward section also includes a pivot assembly that is attached to the runners. The rear section includes several sliding connections between the sled and the runners that allow the runners to bend in an arc when a person riding the sled applies turning pressure to the steering arm.

Abstract: A skag having a rod/elongated rod and rearwardly-angled threaded studs upwardly-extending immovably from the rod. The skag adapted to be connected to the bottom of a snowmobile ski to enhance the steering capabilities the snowmobile ski. The studs being angled with respect to a longitudinal axis of the skag in a direction opposite to that of the forward travel direction of the skag to decrease the shear stress on the weld fixing the stud to the rod and providing a security against installing the skags in the wrong orientation on the bottom of the ski.

Abstract: A sled having an aerosol container containing a coloring fluid so as to allow the user to leave behind one or two colored trails showing where the sled has gone. The aerosol container is in a jacket attached to a movable mounting plate. The tilt actuator of the container is activated by a trigger wire which is attached to a trigger on the sled handle.

Abstract: A skag having a rod/elongated rod and rearwardly-angled threaded studs upwardly-extending immovably from the rod. The skag adapted to be connected to the bottom of a snowmobile ski to enhance the steering capabilities the snowmobile ski. The studs being angled with respect to a longitudinal axis of the skag in a direction opposite to that of the forward travel direction of the skag to decrease the shear stress on the weld fixing the stud to the rod and providing a security against installing the skags in the wrong orientation on the bottom of the ski.

Abstract: A snowboard (1), comprising a core (4) covered with an upper assembly (10), which comprises: a reinforcing layer (12) impregnated with a polymerized resin, an upper protective layer (11) having a penetrating opening (20, 21), and an additional decorative element (13) present inside said opening (2) extending under the upper protective layer (11) at the periphery of said opening, characterized in that the additional decorative element (13) is formed of a layer of fibrous material, and in that it comprises a layer (14) of a polymer material forming a seal barrier between said additional element (13) and the resin of the reinforcing layer (12), said sealed layer (14) extending under the additional element and projecting beyond said element (13) to contact the underside (16) of the upper protective layer (11).

Abstract: A guide fixed at the front of a ski of a snow vehicle (22) and including two wings (40) of reversed U-Shape, whose web (60) is linked to the lower face of the ski, the guide including means of initialization (64) of a rectangular runner (48) which is laid out sideways, in continuation and in line with the guide. A ski of a snow vehicle used in combination with a wear runner which is laid out longitudinally of the ski, the bottom face of the ski having in its fore end a pair of downward wings (40) acting as knives and spaced to guide the snow on the two sides of the wear runner. The existing methods of stabilization of snow vehicle implying a sole carbide runner are improved by the presence of the guide, which guides the runner through the trails left by the passage of skis of other snow vehicles. The runner is further improved by a rectangular section thereof, which is laid out sideways and longitudinally of the ski and by its being self sharpening.

Abstract: A skag having a rod/elongated rod and rearwardly-angled threaded studs upwardly-extending immovably from the rod. The skag adapted to be connected to the bottom of a snowmobile ski to enhance the steering capabilities the snowmobile ski. The studs being angled with respect to a longitudinal axis of the skag in a direction opposite to that of the forward travel direction of the skag to decrease the shear stress on the weld fixing the stud to the rod and providing a security against installing the skags in the wrong orientation on the bottom of the ski.

Abstract: A sliding recreational device having a body, a seating area for a passenger, and a sliding pan mounted on the bottom of the body is disclosed. A cushioning element mounted in the body protects a passenger from injury while riding the device. By applying certain patterns to the bottom of the sliding pan, a stable, more predictable ride path is made possible for the rider. The addition of a system of pivoting braking elements and cabling enable a passenger to steer and brake the device.

Abstract: A snowboard scooter formed of a one-piece platform wide enough to accommodate the width of two feet, with side-by-side but offset foot grips in the form of straps, as on a snowboard, requiring the user to place his or her feet in predetermined positions, a fixable post and a handlebar, and a brake system actuated either at the handlebar or by direct contact with one of the user's feet. Preferably a hydraulic brake system is used to drive a rear flange into the snow to stop the snowboard.

Abstract: A snowmobile steering mechanism adapted to place higher pressure on the outside ski than on the inside ski when the snowmobile enters and exits turns, said steering mechanism being adapted to include the suspension in the steering action of the snowmobile causing the snowmobile to automatically lean into a turn improving the ability of the snowmobile to enter and exit turns in comparison to a snowmobile without the inclusion of the suspension in the steering action of the snowmobile.

Abstract: A snowboard with a handle includes a gliding plate, a rotary shaft mounted on the upper side of the gliding plate on its front side and having a central axis passing across the gliding plate, and a handle portion disposed on the upper side of the gliding plate. The handle portion has its bottom end mounted pivotally to the rotary shaft so that the top end of the handle portion can swivel upwardly and downwardly around the rotary shaft The portion of the gliding plate that extends from the point where the central axis passes across the gliding plate toward its front end is narrower than the portion of the gliding plate that is located at the point where the central axis passes across the gliding plate.

Abstract: A sled includes a pair of runners that are formed from a single, continuous, hollow plastic pipe. The runners are fixed to a platform at three locations: the rear ends of the runners curve upward and are attached to the rear end of the seat, while intermediate portions of the runners are attached to downwardly extending legs of the seat. The forward ends of the runners curve upward and support a footrest via retainers. The seat and the footrest are connected together by a rope. The runners are twistable during a steering operation.

Abstract: This invention relates to recreational equipment for use on a sliding surface, such as skis, snowboards, or other equipment for use by a person such as a skier, snowboarder or water-skier. This invention provides a pogo-ski comprising a ski and a post thereon which is fitted with foot supports and a handhold suitable for use by a standing user.

Abstract: An articulated snowboard includes first and second members that are joined at a first end by an articulation mechanism that permits vertical offset between the members while preserving parallel orientation of at least one of a longitudinal axis through each member and a leading edge of each member. Articulation enhances stability, user control, and braking action. Further, the articulation mechanism permits folding the articulated snowboard in half for storage and transport, and also permits separating the two members. When separated the two members can be worn by a user as emergency snowshoes or short skis.

Abstract: A ski sled with adjustable boot blocks and a rider-operated weight-transfer device for rider-controlled steering. The boot blocks are provided with fixed and/or variable angle adjustment devices for changing the angle of the ski bottoms with respect to the snow surface, and the toe-in angle of the skis with respect to each other. Further, the boot blocks are provided with lengthwise adjustment mechanisms so that the boot blocks may be attached to any standard ski binding used on any ski without modification or any special attachments to the bindings or the skis.

Abstract: A sled for sliding on a sliding surface has a hull with bow and stern ends, a side portion extending therebetween, and a bottom surface for contacting the sliding surface. A snow-brake integral with the hull is formed from a portion of the hull that extends outward from the hull and downward part-way to the bottom surface. The snow-brake forms a scoop for engaging the sliding surface when an angle between the hull and the sliding surface exceeds a critical angle. The critical angle is selected such that the bottom surface contacts the sliding surface while the snow-brake engages the sliding surface.

Abstract: The snow ski is pivotally attached to a snowmobile in order for it to be pivotable about its longitudinal, steering and transversal axes that intersect each other. The ski has a ski sole from which integrally project first and second elongated front lateral keels and an elongated rear central keel. Moreover, rear ski sole depressions are made in the ski sole, at the vicinity of the rear keel. When the ski is in a straight-line position for allowing the snowmobile to move forward in a straight line, it adopts a flat ground-engaging position in which all three keels rest on the ground surface. When the ski is in a turn-carving position for allowing the snowmobile to move forward while turning in a desired direction, the ski is tilted sidewardly with only the central keel and a selected one of the first and second lateral keels resting on the ground, to carve the ground surface in order for the ski to exhibit a self-steering behavior with enhanced gripping effect.

Abstract: A ski vehicle including (a) a seat; (b) a steering mechanism for steering the ski vehicle; (c) a frame; (d) a forward ski member attached to the steering mechanism; (e) a rear ski member; (f) pivotal attachments for pivotally attaching the rear ski member to the frame at longitudinally spaced locations on the rear ski member to permit the rear ski member to flex between the spaced locations; and (g) a footrest for supporting the feet of a user, footrest extending on each side of the frame and being disposed between the seat and the rear ski member.