| 摘要 |
PURPOSE:To prevent completely a driving wheel from slipping by making a pair of driving wheels disposed on both right and left sides of the center of a vehicle body where an appropriate number of auxiliary wheels are provided on both ends of the front and the rear come into contact with a road surface with approximately uniform force, regardless of upper and lower strokes. CONSTITUTION:A vehicle is provided with a pair of driving wheels 1 on both right and left sides of the center of a vehicle body 4, and also an appropriate number of auxiliary wheels at both ends of the front and the rear of the vehicle body 4, whereas respective driving wheels 1 are constituted so that they may move up and down vertically with prescribed force in relation to the vehicle body 4 and they may come into contact with a road surface by approximate uniform force, regardless of the vertical strokes. For example, a pair of guide shafts 3 protruding from the driving device 2 of the driving wheel 1 are supported through a linear bearing 5 fixed on the vehicle body 4 so that they may operate up and down. One end of a rope 7, whose other end is fixed on an arm 6 which connects the edge parts of respective guide shafts 3, to each other is wound around a pulley 8 which is pivotally supported to the vehicle body 4, and is connected to a tension bar 9 supported by a tension spring 11. |
