| 摘要 |
PURPOSE: To carry out favourable damping along an extensive frequency domain by sealing a well port to communicate two fluid chambers, to each other by a movable valve of a comparatively large cross sectional area in relation to a means to limit size of deflection. CONSTITUTION: Two fluid chambers A, B are formed on a body of an elastomer material to connect tubular frames 1, 2 to each other, communicated to each other through a fine groove E and communicated to each other through a sufficiently extensive well port 5. A disc valve 4 of a rigid body made of a plastic material such as superpolyamide, etc., is installed on this well port 5 through a cylindrical ring 7. Thereafter, in the case when vibration of low amplitude and comparatively high frequency works on the frame 1 or 2, vibration is generated on the valve 4, and a filtering effect to prevent transmission of vibration from this frame to the other frame is performed by this phenomenon. Consequently, it is possible to favourably carry out damping along an extensive frequency domain. |
