| 摘要 |
FIELD: sport. ^ SUBSTANCE: invention concerns sport, particularly it concerns devices for maintenance of downhill skiers training in conditions beyond hills and without blanket of snow. Invention is directed to effectiveness increase of sportsmen training process. Device is implemented in the form of unconnected skateboards for left and right feet with fixation for boots and three roller assemblies at each scateboard, two of which are fixed to board ends inflexibly and one in its center - spring-mounted, at that axes of central assembly are shorter then end axles. Each roller assembly consists of two wheels fixed on axes ends. Axes are located perpendicularly of longitudinal axis of board symmetry, forced on bearings and by means of column are fixed to bottom surface of board. Each wheel is implemented as assembled in the form of jointed discs, in grooves of which there are located straining rollers of torus-like form with external diameter more then discs diameter and which are rotatable in groove due to side forces. ^ EFFECT: effectiveness increase of sportsmen training process. ^ 8 dwg |
