MOVABLE VALVE TYPE FLUID ENCLOSED ANTI-VIBRATION SUPPORTER

摘要

PURPOSE: To provide a movable valve type fluid enclosed anti-vibration supporter having a movable valve with reliable behavoir regardless of vibration input and installation posture. CONSTITUTION: In a fluid enclosed anti-vibration supporter in which vertically isolated two fluid rooms 18, 20 partitioned by a partition plate 16 and communicated with each other by an orifice passage 24 in a rubber elastic case 14 in which vibration is inputted, a through hole 32 is formed on the partition plate 16 and also a movable valve 34 for blocking/non-blocking the through hole 32 by the movement in compliance with the magnitude of amplitude is installed in the through hole 32 and the movable valve 34 is maintained in the non-block position by pulling it from the circumference by a rubber elastic band 36 which can set a spring constant arbitrarily.