| 摘要 |
PURPOSE:To reduce the gap between a frame by defecting a cushion rubber and a rubber bush downward by pressing the front part of a power unit downward when a cushion unit contracts largely, and by suppressing the upward shift of the power unit. CONSTITUTION:A rear wheel 3 is installed at the rear edge of a power unit 1, and the front lower edge of the power unit 1 is pivotally installed at the rear edge of an arm 7 installed on a bracket 5 in the lower part of a frame 4, and a cushion unit 13 is connected between the rear part of the power unit 1 and the rear upper part of the frame 4, and the lower edge of the cushion unit 13 and the top edge of an arm 14 at the front upper part of the power unit 1 are connected with two link bars 15 and a swing arm 17, and when the cushion unit 13 contracts, the front part of the power unit 1 is pressed downward. |
