| 摘要 |
PURPOSE:To enable to not only run on level road with four wheel drive but also to ride across stairs and obstacles with crawlar drive by a structure wherein crawlers are fitted auxiliarily to a four wheeler. CONSTITUTION:In response to the subject such as stairs, obstacles or the like, the front and rear crawlers 7 and 8 are so constructed as to adjust their level through shafts 10 and bearings 11, both of which are cut with threads for engagement, by means of motors 9. Owing to the structure as mentioned above, a vehicular body is turned to be supported with the front and rear crawlers 7 and 8 and four wheels are brought out of contact with running surface and the running of the vehicle is performed with the crawlers by means of motors 12. In addition, the turning of the vehicular body on the spot is performed by rotating the right and left driving wheels 1 and 2 relatively in reverse direction. |
