| 摘要 |
PURPOSE:To obtain a vibro-isolating effect by coaxially arranging inner and outer cylinders, to which vibration generating and receiving parts are mounted, providing two or more liquid chambers between both the cylinders and providing an elastic unit relatively movable with the inner cylinder while coating its periphery with a low friction material film. CONSTITUTION:When a vehicle is started and stopped, an engine generates a large vibration, and in case of generating prying action of an inner cylinder 12 in its axial center for an outer cylinder 24 in its axial center, a relative movement is generated between the periphery of the inner cylinder 12 and the internal periphery of an elastic unit 42. However, because the elastic unit 42 is soft formed smoothing by a teflon film 44 the relative movement between the inner cylinder 12 and the elastic unit 42, no noise is generated even when a slip is generated between the periphery of the inner cylinder 12 and the elastic unit. While when the engine is in vibration, the vibration is absorbed not only by an elastic unit 16 in the internal friction but also by passing resistance of fluid in upper and bottom small liquid chambers 32A and 32B when the fluid moves through a limiting passage 38. |
