| 摘要 |
In the present invention, resonance in an annular liquid chamber in an inverted hydraulic mount is controlled without using flow resistance. In this inverted hydraulic mount, an auxiliary liquid chamber (7) is placed on top and a main liquid chamber (6) is placed on the bottom, the main body part (10) of an insulator (8) protrudes upwards in a substantially mountain-like manner, and an annular liquid chamber (6a) is formed around the periphery of the main body part (10). A control protrusion (20) which protrudes upwards is provided to the outer wall (11) of the main body part (10), and is configured to use elastic body resonance in the vicinity of the resonant frequency of the annular liquid chamber resonance. Thus, the elastic body resonance of the control protrusion (20) can be used to control the resonance of the annular liquid chamber, and the control protrusion (20) can be sized to withstand flow resistance, improving durability. |
