| 摘要 |
<p>A means in an object movable on a ground, for instance vehicles, load carriers and corresponding things for removal of the object which means at least comprises a wheel arranged at the object. For achieving unique motion possibilities like for instance changing the motion direction of the vehicle 90° in relation to its previous direction the wheel (1) is driven and has its rolling point (9) resting against the ground positioned at a radial distance from a shaft (3) in relation to which the wheel with its rotation shaft (8) is turnably guided along a circle line having the mentioned radial distance as a radius round the mentioned shaft (3) for a change of the motion direction.</p> |
