| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized traction device perfectly suitable for a very severe weather condition in winter which is capable of travelling in a rough area covered with snow, sand, or mud.SOLUTION: A small-sized traction device capable of travelling in a rough area covered with snow, sand, or mud includes: a long and sealed housing that extends along a vertical axis line and forms an internal space; a track arranged at the periphery of the housing along the vertical axis line that moves the traction device while rotating in the periphery of the housing; an electric generator provided in the internal space of the housing that generates electricity for operating external equipment; and a gasoline engine provided in the internal space of the housing.SELECTED DRAWING: Figure 1 |
