| 摘要 |
This invention relates to a driving apparatus being provided for an aircraft or other wheeled vehicle by providing at least two frictional rollers which are mounted spaced from each other and adapted to be positioned on opposite sides of the wheel assembly of the vehicle, whether this wheel assembly consists of a single wheel or two or more wheels. A moving or pressing means is provided for pressing the rollers into frictional contact with the wheels of such wheel assemblies by, for example, controlling the spacing between the rollers. Drive means are then provided for rotating at least one of the friction rollers causing the vehicle wheel or wheels in contact therewith to also be rotated to move the vehicle.
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