| 摘要 |
PURPOSE:To reduce the manufacturing cost of a vibration control device and to improve sealing ability. CONSTITUTION:A resilient body 16 is mounted between a top plate 18 and a support cylinder 14 coupled to a bottom plate 10. Liquid chambers 26 and 28 are formed in the top plate 18, the bottom plate 10, and the support cylinder 14 and the pressure receiving liquid chamber 26 and the auxiliary liquid chamber 28 are partitioned away from each other by a partition wall member 30. A rotor valve 52 is installed in a round hole 50 formed in the middle of an idle orifice 48 in the partition member 30. An engaging recessed part 62 to interconnect the round hole 50 and the outer peripheral surface of the partition wall member 30 is formed on the same axis as that of the round hole 50. A shaft hole 60B in which the drive shaft 52A of a rotor valve 52 is inserted is formed on the same axis as that of an engaging protrusion part 60A formed on a boss member 60. Thus, when the engaging protrusion part 60A is engaged with an engaging recessed part 62, the rotor valve 52 is reliably positioned at the central part of the round hole 50 and sealing ability between the rotor valve 52 and a motor 58 is improved. |
