PLANCHE A ROULETTES OU PATIN A ROULETTES

摘要

The skate (1) has a guiding undercarriage whose kinematics permit to direct the board by an axle (2) that is in pivot connection with a base (3). Distance between a wheel contact point (6) i.e. longitudinal median intersection point, and a pivoting point i.e. intersection point of axis (5), at a pivoting plane perpendicular to the axis and passing through the contact point is less than or equal to 15 percent of distance between contact points of a wheel and a ground when the axle is in a neutral position.