| 摘要 |
PURPOSE:To improve the vibration blocking effect and suppressing effect by forming a pair of liquid chambers facing each other in axial direction while holding a partition wall between them in a resilient member placed between inner and outer tubes and differentiating the radial lengths of partition wall and outer wall of each liquid chamber. CONSTITUTION:A resilient rubber member 13 is mounted between an inner tube 11 and an outer 12 arranged coaxially with the inner tube 11. Said resilient member 13 is adhered through vulcanization to the inner tube 11 and an auxiliary ring 15 to be pressure fixed to the innercircumference of outer tube 12 through a seal rubber 14. First and second fluid chambers 17, 17a partitioned by a partition wall 16 made of resilient member such as rubber having lower spring constant than that of resilient member 13 and third and fourth fluid chambers 18, 18a partitioned by the partition wall 16a are formed in the resilient member 13 then each fluid chamber is communicated each other through communication paths 22, 23. Radial length L1 of partition walls 16, 16a is made shorter than the length L2 of outer walls 21, 21a of resilient member 13. |
