"DAS" SYSTEM SKATES FOR SPEED RUNNING Russian patent published in 2016 - IPC A63C1/22 

FIELD: sports.

SUBSTANCE: skates allow to increase push phase and provide stable position of shoe with leg in space during whole running, considerably unloading leg muscles, that leads to overall increase of running efficiency and more rational correct run. This is achieved by fact that boot tips are hinged on brackets, shoes soles are made in form of cranks, on free surface of crankshafts (soles) are articulated fixed piston-rods by one ends, by other ends interacting with slides, installed on bodies of skates made with possibility of linear movement along movement of user, wherein slides front parts interact with dampers, wherein dampers forces on slides and slides stroke are adjusted by screws, besides, screws with marks applied on them are made with possibility of their use as indicators, indicating pressing force of dampers and slides stroke, and distances between points of said hinges centers make open triangles, made with possibility to vary stiffness of system owing to adjustable sides of open triangles length, wherein dampers are made in form of compression springs, with possibility to change rigidity by replacement of springs, and heels are made with possibility of damping during feet shocks from ice surface.

EFFECT: increased efficiency of running and more rational correct run.

4 cl, 4 dwg