| 摘要 |
PROBLEM TO BE SOLVED: To provide a durable vibration control device capable of preventing a valve element from being broken. SOLUTION: This liquid sealed vibration control device includes: an outer cylinder 11 connected to any one of a vibration generating portion and a vibration receiving portion and an inner cylinder 12 connected to the other thereof; an elastic body 13 elastically connecting the outer cylinder 11 and the inner cylinder 12 to each other; and a partitioning member 15 partitioning a liquid chamber 16 inside the outer cylinder 11 into a main liquid chamber 17 on one side including the elastic body 13 as one part of a wall surface thereof and an auxiliary liquid chamber 18 on the other side. A restricted passage 40 is formed to communicate the main liquid chamber 17 with the auxiliary liquid chamber 18. A valve element 48 formed with a fixed end in one end thereof in the longitudinal direction and formed with a free end positioning in an opening part 44 of the restricted passage 40 on the main liquid chamber 17 side in the other end thereof in the longitudinal direction and to be elastically deformed by the liquid pressure inside the liquid chamber 16 is arranged inside the outer cylinder 11, and the valve element 48 is formed into a shape to be reduced in the pressure receiving area from a fixed end side to a free end side thereof. COPYRIGHT: (C)2010,JPO&INPIT |
