| 摘要 |
<p>A device for moving a car (3) in confined spaces, characterized in that it comprises two rolling bodies (9a,10a) having parallel axes and connected to a structure (6) that is associated with the car so that it is rotatable about an axis that lies at right angles to the underside and passes through the center of gravity of the car; the structure is provided with means (9b,10b) for moving the rolling bodies (9a,10a) from a position in which they are adjacent to the underside and comprised within the bulk of the car (3) to a position in which the rolling bodies are in contact with the ground and lift the wheels of the car from the ground. <IMAGE></p> |
