| 摘要 |
Skateboard with rotary wheels relies upon ground by means of castors, which consist of one wheel at axle (2) or several wheels on mutual axle (2') rotatable around guiding axle (6). Tuning aside of rotable wheels in relation to board (9) around guiding axle (6) is limited by spring mechanism i.e. spring (10), herewith force required for turning aside depends on angle of mutual turning aside. All rotary wheels are in counterbalance position always oriented by guiding axle in direction of ahead motion of rolling board, with particular feature distance between guiding axle (6) and its own axle (3) is significantly larger than usually required minimal distance required for turning aside, and in scope of 6-40 cm. Such a construction of rolling board with rotary wheels enables to speed up and keep up the achieved speed by rhythmical oscillation and swinging of body of driver without thrusting foot off ground, and significant save in driver's energy. |
