LIQUID ENCLOSED TYPE VIBRATION ISOLATION DEVICE AND LIQUID ENCLOSED TYPE VIBRATION ISOLATION DEVICE UNIT

摘要

PROBLEM TO BE SOLVED: To provide a liquid enclosed type vibration isolation device and a liquid enclosed type vibration isolation device unit sufficiently reducing generation of noise while securing low dynamic spring characteristics at a time of relatively small amplitude vibration input and high damping characteristics at a time of relatively large amplitude input.;SOLUTION: A first bracket 1 is constructed as a body frame side connection means connected to the body frame BF side and a second bracket is constructed as a vibration generation body side connection means connected to the engine EG (vibration generation body) side, and a part of a vibration transmission route from a partition means 7 to the body frame BF is constructed by a vibration isolation base body 3. Consequently, even if elastic partition film 8 hits an upper side and a lower side gripping member 9, 10 in the partition member 7 and the upper side and the lower side gripping member 9, 10 vibrates, transmission of vibration to the body frame BF is surely suppressed by vibration isolation effect of the vibration isolation base body 3 constructing a part of the vibration transmission route, and generation of noise can be greatly reduced.;COPYRIGHT: (C)2006,JPO&NCIPI