Patent ID: 6073918
Filing Date: 2000-06-13
Classification: F16F

Abstract:
A vibration isolating apparatus, comprising:a first attaching member which is connected to one of a vibration generating portion and a vibration receiving portion;a second attaching member which is connected to another of the vibration generating portion and the vibration receiving portion;an elastic body which is disposed between said first attaching member and said second attaching member;a main liquid chamber whose portion of a partitioning wall is formed by said elastic body, said main liquid chamber being filled with liquid, and the content volume of said main liquid chamber being changed due to deformation of said elastic body;a first auxiliary liquid chamber which is communicated with said main liquid chamber by a passage and which is filled with the liquid;a first diaphragm which is elastically deformable and forms at least a portion of a partitioning wall of said first auxiliary liquid chamber;a partitioning member which partitions said main liquid chamber and said first auxiliary liquid chamber;a second auxiliary liquid chamber which is communicated with said main liquid chamber by a passage and which is filled with the liquid;a second diaphragm which is elastically deformable and forms at least a portion of a partitioning wall of said second auxiliary liquid chamber and which is more rigid than said first diaphragm;a valve which opens and closes the passage connecting said main liquid chamber and said second auxiliary liquid chamber; andan actuator which is connected to and operates said valve.