| 摘要 |
PURPOSE: To simplify a structure by effectively absorbing a vibration of prescribed frequency further to decrease a number of part items. CONSTITUTION: An outer cylinder 14 comprises a large diametric part 14A, outer flange 14B and a small diametric part 14C, wherein one end of the outer cylinder 14 is closed with an elastic unit 16 and the other end with an elastic film 24, so as to fill the inside with a liquid 28. The outer cylinder 14 is connected to either one of a vibration generating part or a vibration receiving part, and a mounting plate 18 bonded to the elastic unit 16 is connected to either the other of the vibration generating part or the vibration receiving part. When a vibration of prescribed frequency is inputted, the liquid 28 resonates in the small diametric part 14C which plays a role of a limiting passage, and a dynamic spring constant of a vibration isolating device is decreased, to effectively absorb the vibration of prescribed frequency. By eliminating necessity for a limiting passage forming member provided in the conventional vibration isolating device, partitioning plate for dividing a subliquid chamber, etc., a number of part items is markedly reduced. |
