| 摘要 |
PURPOSE:To enhance the damping capacity of wind-up vibration, by forming a liquid chamber in each of upper and lower rubber bushings and by communicating the liquid chambers in both upper and lower rubber bushings with each other to constitute a liquid dynamic damper. CONSTITUTION:When a wheel 10 rolls up a projection E on a road surface, an axle casing 2 swings in the direction F and is limited by upper and lower links 3, 4 so that is is exerted with a wind-up moment in the rotating direction. With this arrangement a force in the direction G is applied to the upper link 3 so that it is transmitted to an outer cylinder 32 on the vehicle body side to enlarge the volume of a first liquid chamber 38. Meanwhile, the volume of a second liquid chamber 48 is reduced by a force in the direction H toward the lower link 4 so that liquid flows through a communication pipe 14 in the direction I. With this arrangement, the wind-up vibration is converted into the fluid energy of charged fluid W, thereby it is possible to damp wind-up vibration. |
