Abstract: A pair of roller skis 300 each constituted by attaching elastic wheels 302 to a boot-placing plate 301 in the front thereof and at the back thereof. The elastic wheels 302 each comprises a wheel supporting means having a circular rim part on the outer periphery and a tire part mounted on the circular rim part of the wheel supporting means and being elastically deformable in the direction perpendicular to the running direction of the wheel. Each elastic wheel 302 enables the running direction thereof to be simply changed with the wheel shaft kept in the same direction, and utilization of the features permits a skier to operate the roller skis with a feeling similar to that afforded by conventional snow skis.

Abstract: A wheeled simulator for enabling the practice of ski turns on "dry land." In particular, both edging of the simulated skis and preferential weighting of the "outside" simulated ski contribute to tightening of the turn to prevent a fall by the user.

Abstract: A steerable chassis arrangement for roller skis comprises a chassis and an axle assembly having an axle shaft and hollow tube. A rotatable wheel is mounted to the axle assembly such that the wheel defines a vertical datum and a vertical plane when the wheel is on a normal straight-ahead direction. The axle tube is disposed with an are defined by the outer surface of the rotatable wheel. The axle tube is pivotally coupled to the axle shaft so that it pivots about an access that is inclined with respect to the vertical datum and disposed in the vertical plane of the wheel.

Abstract: A dry land snowboard training device is presented for simulating the balance and movement of a conventional snowboard on dry land, and in particular the balance and movement of a conventional snowboard on a wooden half pipe. The device comprises a unitary retrofit apparatus which can be mounted to a footboard or removably mounted to a conventional snowboard. The retrofit apparatus includes a frame, a support brace, and a series of housing assemblies which each contain a plurality of ball bearings. The device also incorporates a pair of inventive bindings which each comprise a hard plastic sole, with straps, and a support piece, with a strap, which is attached to the hard plastic sole with flexible cords.

Abstract: Improvements made to wheeled skate-skis, set forth in U.S. Pat. No.

Abstract: The device for fastening footgear to a sports implement, particularly to a cross-country ski or to a ski mounted on rollers or to a ski for Telemark skiing or to a ski for mountain skiing, has the peculiarity of including at least one means for adjustable elastic contrast to the rotation of the footgear with respect to the sports implement.

Abstract: A grass ski is designed to simulate a snow ski in skiing characteristics. The grass ski has an elongate footboard with forward, central and rear portions. The central portion is arched lengthwise in elevation. Suspended beneath the footboard are spaced pairs of rollers including at least one roller pair on the forward portion, at least three roller pairs on the central portion and at least one roller pair on the rear section. One of the roller pairs is mounted on a resilient T-shaped bracket. There are elevated side guards on the forward section.

Abstract: A hopping roller skate comprises a hopping shoe, which comprises a shoe and a pair of coil springs with or without an elastic base plate, combined with a fixed or releasable roller skate body, and is used for the training of skiing or cross-country skiing. When separated the hopping shoe and roller skate may each function in their usual and ordinary manner, respectively. The arrangement of the rollers under the skate body may be selected in accordance with the desired training for the sport. Stability for a wearer on the coil springs is maintained with a pair of sticks. The extreme outer coils of the springs arranged outwardly on the roller skate are at a right angle to a respective longitudinal axis. The sticks and the coil springs accelerate the sliding speed of the skate by their stroke or thrust movement, and change the sliding direction in the same manner as an ordinary ski. Front and rear brakes control the movement and sliding speed by contact friction with the ground.

Abstract: There is provided a rollerboard for road-skiing using a pair of poles and having a board body with two footholds on the both sides of the longitudinal axis thereof. A front roller assembly and a rear roller assembly is supported by and disposed under the board body. The front roller is horizontally journaled by a front roller bracket vertically pivoted on a plate secured on the board body with a horizontal distance between the shaft of the front roller and the pivot of the front rollerbracket, and the rear roller assembly includes a rear roller journaled by a rear rollerbracket mounted on the board body under the region of the footholds. In addition, a brake means is provided including at least a brake shoe bracket, whose one end is hingedly mounted at the rear end region of said board body and the other end is secured with a brake shoe facing the ground, and at least a spring means interposed between each said shoe bracket and said board body respectively to provide braking tolerance.

Abstract: A cart formed with a concave top surface and a convex bottom surface mounting rollers medially of forward edges of each forward and rear edge and of the cart to permit use of the cart in a rolling or skidding orientation. The cart structure utilizes a plurality of spaced skids projecting below the bottom surface of the cart for enhanced skidding upon various surfaces, such as water, sand, and snow.

Abstract: A grass ski is designed to simulate a snow ski in skiing characteristics. The grass ski has an elongate foot board with forward, central and rear portions. The central portion is arched lengthwise in elevation. Suspended beneath the foot board are spaced pairs of rollers including at least one roller pair on the forward portion, at least three roller pairs on the central portion and at least one roller pair on the rear portion. Each roller has a profile which reduces in diameter towards the outside. Preferably, the left and right hand rollers in plain view are located on concave lines lengthwise of the footboard.

Abstract: A pair of wheeled skate-skis, equipped with hand moved operating control cables to initiate bicycle wheel type caliper operated frictional braking pads contacting wheel rim sides to slow down and/or to stop, are provided for use by a sportsperson who enjoys skating-skiing on the level, going uphill, and/or coasting downhill. To further improve the sportsperson's control of his or her overall movement, while on these wheeled skate-skis, his or her sport shoes, are conveniently, removably, and securely, positioned on these wheeled skate-skis by wraparound binding portions, which during skating and skiing movements are held firmly in place by using "Velcro" or "Dual Lock" fasteners or like functional fasteners.

Abstract: A roller ski that uses a wheel including a stationary member, a rotating tire member, and a liquid between the two to provide viscous damping to rotation of the tire member. The roller ski tire member can increase in width from a hub portion to a crown portion to provide crown edge portions that deflect during edging.

Abstract: Roller skis have an effective braking system. At least one friction producing braking element, such as a truncated cone of friction producing plastic resin (e.g. polyurethane) or rubber, is mounted to the bottom of a roller ski so that it overlaps the inner edge of the roller ski, positioned along the roller ski generally at the position at which the ski boot is mounted. The braking element may be connected to the roller ski by a separate attachment comprising a channel-shaped element with a screw clamp for connecting the channel-shaped element to the ski, and with the braking element extending downwardly from the channel. When it is desired to stop while practicing Nordic skiing (cross-country skiing) or Alpine skiing, the skier simulates a "snow plowing" maneuver, which brings the braking elements at the inside edges of both skis into contact with the ground, causing the roller skis to stop.

Abstract: The present device is a roller ski that closely simulates the sliding, edging, turning and weighting characteristics of a snow ski. The roller ski is comprised of an exterior frame with pivotally mounted skate rollers that are inclinationally biased in the longitudinal direction to the ski and an interior platform which has a skateboard truck or similar rollers and which is pivotably hinged to the exterior frame along the longitudinal center line of the ski. The pivoting rollers on the exterior frame are attached to a caster mounted to a horizontal plate that is springily hinged to permit forced rotation about a horizontal transverse axis on the bottom side of the exterior frame to which the caster is attached. Consequently, weighting of the ski depresses the pivoting rollers, which are continuously in contact with the ski surface; whereas the rollers on either side of the skateboard truck make contact with the ski surface if the interior platform is tilted about the longitudinal center line of the ski.

Abstract: The invention concerns a roller ski, each of which has a longitudinal support (1) equipped with a ski binding (5) to secure a ski boot, on which support (1), front and back, rubber-tired running wheels (3, 8, 9) are situated, one or more of which are provided with a return catch. In order to provide such roller skis with a braking device which is simple in design and construction and which can be operated by the skier by executing a movement of the body usually made during skiing, the invention provides for equipping, in particular, the rear running wheels (8), located on the side facing the adjacent roller ski with a brake lining (10) laterally mounted on the running wheel (8), which brake lining projects slightly inwardly above the inner lateral boundary (11) of the longitudinal support (1) which extends in the direction of movement.

Abstract: Wheeled ski boards for off-road downhill skiing without snow are provided with a plurality of resiliently deformable off-road wheels and hand-held braking mechanisms for selectively controlling the speed and direction of travel of the ski boards.