| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide favorable performance that can suppress occurrence of vibration in a compact size by a simple reconstruction, by triangularly arranging in side view the respective shaft cores of an electric motor, a speed reducing mechanism and a differential mechanism. SOLUTION: The output shaft 15 of an electric motor 3, the intermediate shaft 17 of a speed reducing mechanism 10 and axles 12, 12 interlocked to a differential mechanism 11, are arranged in parallel along the width direction of a car body, and also the rotary shaft core P1 of the output shaft 15, the rotary shaft core P2 of the intermediate shaft 17 and the rotary shaft core P3 of the axles 12, 12, are triangularly arranged in side view. That is, the electric motor 3, the speed reducing mechanism 10 and the differential mechanism 11 are so arranged that the respective rotary shaft cores P1, P2 and P3 are positioned at the respective vertexes of a virtual triangle. Therefore, the whole arrangement of the electric motor 3, the speed reducing mechanism 10 and the differential mechanism 11 can be longitudinally shortened so that a space can be saved, and also a case can be miniaturized and vibration hardly occur so that a noise can be suppressed.</p> |
