| 摘要 |
PURPOSE:To improve efficiency of operation, by employing an arrangement that shifting of clutch can be effected only at the position where clutch gear and mating portion of the clutch are registered with each other. CONSTITUTION:On the peripheral surface of clutch, there is provided a coupling portion that is engaged with clutch gear in steering unit 13, which has a sterring section capable of effecting straight travelling, revolving and super-ground revolving of vehicle through engagement of a multiplicity of gears. Thus, in accordance with the arrangement of this invention, shifting of clutch can be effected only at the position where mating portions (f) of the clutch and clutch gear are registered with each other, so that steering modes of a vehicle capable of travelling in a multiplicity of directions can be effected at particular positions of four wheels. Thus, a vehicle capable of operating highly efficiently can be obtained. |
