| 摘要 |
PURPOSE:To suppress vibration in middle or more frequency range from being transmitted to a vehicle body by positioning a heavy member supported by a metal bellows member in the 1st fluid chamber portion. CONSTITUTION:A metal bellows 31 formed of a metal plate and supporting a heavy member 30 is fixed to the 1st metal plate member 24 forming a partition member 19 on the 1st space portion 21 side, and fluid is filled into an annular space 26 formed between the 1st metal plate member 24 and 2nd metal member 25 for forming the 1st space 21, 2nd space 22, and partition member 19. The fluid pressure fluctuation in the 1st fluid chamber 21 resulting from vibration in relatively low frequency range of about 10Hz among the vibrations transmitted to an elastic shock absorbing member 6 is absorbed by the damping action owing to flow of fluid between the 1st and 2nd fluid chambers 21 and 22 both of which are connected to each other through a fluid connecting path 26, and the fluid pressure fluctuation in the 1st fluid chamber 21 resulting from vibration in a frequency range more than about 150Hz is suppressed from being transmitted by means of the heavy member 30 and bellows 31. |
