| 摘要 |
PURPOSE: To provide a roller ski wherein in relation to roller skis, motion characteristics such as sliding, turning, speeding, and braking similar to skis on snow can be improved, and techniques, contests, and training similar to skis on snow can be performed. CONSTITUTION: A plate body 1 and bearing parts 3 are integrally formed from various lightweight materials. One or more single rollers S are arranged on the bottom surface 1b of the plate body 1 so as to be pivotally supported by the bearing parts 3. Points of ground contact of the rollers are arranged so as to come into contact with an upwardly curved arcuate contact line, the further the points being from the center of the line with respect to a horizontal line, while twin rollers T are pivotally supported so as to be raised from the ground at a location spaced apart from the central group of rollers. Each rotational wheel 7 is rotatably supported by a roller axis at a rotation center 8, and each wheel 7 is engaged with a tire part 11 through wheel passing projections. Uneven grooves 12 are formed on the outer surface of the tire part 11 depending on running conditions, whereby the roller is integrally formed.
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