| 摘要 |
PROBLEM TO BE SOLVED: To materialize non-linear dynamic spring characteristics of an elastic partition. SOLUTION: A partition member 5 consists of an upper plate 20, a lower plate 21 and an elastic partition 22. A ring-shaped thick part 40 is provided on the radially outer peripheral side of the elastic partition 22. The outer peripheral side of the part 40 is taken as a taper sectional part 41. The outer periphery 42 is provided to the outer periphery of the taper sectional part 41, thereby integrating a mounting ring 43. The inner side of the ring-shaped thick part 40 is taken as a recessed and curved surface 44, wherein the spring constant is decreased. Assembly of the elastic partition 22 by reducing a diameter of the mounting ring 43 leads to slack in the taper sectional part 41 and the recessed and curved surface 44, whereby the non-linear dynamic spring characteristic is provided to the elastic partition 22. |
