| 摘要 |
PROBLEM TO BE SOLVED: To provide a tractor with a cab structure being mounted on a body frame capable of suppressing the oscillation and vibration of the cab structure attributable to the lateral oscillation, longitudinal oscillation and vertical vibration of the body frame. SOLUTION: The tractor has a vibration-isolating connection means 60 for connecting a part located at the height above a mount means 40 at a front part of a cab structure 13 to a supporting frame 61 erected on a body frame 5. The vibration-isolating connection means 60 is connected to an upper end of the supporting frame 61. The vibration-isolating connection means 60 connects the cab structure 13 to the supporting frame 61 via a shock-absorbing elastic material 64. The spring constants of the shock-absorbing elastic material 64 to the relative movement of the cab structure 13 to the supporting frame 61 in the longitudinal direction and the right-to-left direction of a vehicle body are set to be larger than the spring constant of the shock-absorbing elastic material 64 to the relative movement of the cab structure 13 to the supporting frame 61 in the vertical direction of the vehicle body. COPYRIGHT: (C)2008,JPO&INPIT
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