| 摘要 |
PURPOSE:To improve the steering ability of a vehicle travelling on uneven road and prevent the vibration from being transmitted to the operator's seat, by constituting the chasis in such a way that a front wheel supporting member is flexibly secured to a frame and a rear wheel supporting member is fixedly secured to the frame respectively. CONSTITUTION:Front wheels 29 are attached to the axle supported on a supporting member 33 fixed to a frame 11 in way of laminated springs 31. Rear wheels 19, 13 are also attached to the axles 17, 23 supported on a supporting member 21, 15 fixed to the frame 11. The power of an engine 39 is transmitted to the rotary shafts 55, 57 of the supporting member 33, 21 via transmission shafts 49, 51 so as to drive the front wheel 29 and front one of the reat wheels 19. Furthermore, the rear wheel 13 is driven by the front positioned rear wheel axle 23 in way of a sprocket 59, chain 63 and sprocket 61. With this construction, the laminated spring 31 may force down the jumping front wheel caused in case of travelling on uneven road to prevent any racing of wheel. Thus, the steering ability of the vehicle is improved and the vibration is prevented from being transmitted to operator's seat. |
