| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for a two-wheeler to disperse the load of heavy cargo to be loaded on the two-wheeler to a separately arranged wheel to lower the center of gravity on the lower part of the two-wheeler, and to facilitate the change of the direction or rotation in travelling operation. SOLUTION: An auxiliary frame 4 connected by a link is attached on the side frame of a rear wheel 1 of a two-wheeler. And an auxiliary wheel 5 is journalled to the auxiliary frame 4 to disperse the load of cargo by the rear wheel and the auxiliary wheel 5. The cargo is placed at lower position to lower the center of gravity of the whole device. A riding operation is facilitated by separately moving the auxiliary wheel 5 to the vertical movement or oblique movement of the body of the two-wheeler. When the vehicle is not loaded, the auxiliary frame 4 is folded and stored in the frame of the two-wheeler and the vehicle can travel as a common two-wheeler.
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