| 摘要 |
The device consists of a frame (1) and freely rotating wheels (6,9) on axles. It has a rear wheel arrangement of at least two wheels, which are relatively offset in direction of their axle. The steering axle (A1) and an imaginary plane parallel to the wheel axles, enclose an angle of less than 90 degs.. which opens towards the front of the appliance. The device may have a spring device for the front wheel axle resp. wheel suspension to provide for steering lock. The carrying platform for a user is located on the frame, on either side of the rear wheel axle, which is not steerable. |
