| 摘要 |
PROBLEM TO BE SOLVED: To obtain a mount device which can secure large vertical strokes by arranging a movable attenuation plate in highly viscous liquid sealed in a water-tight chamber, also arranging a daughnut-like fixed attenuation plate, and arranging a coil spring member between a bottom surface of the cup-like vessel and the movable attenuation plate. SOLUTION: When vibration from a vibration source is input to a cup-like vessel 1, a coil spring member 9 is displaced for relatively displacing the cup-like vessel 1 with a stud 3. A movable attenuation plate 7 is, therefore, vertically moved in highly viscous liquid 6 while being slid with an inner peripheral surface of the vessel 1. Together with th vertical motion of the movable attenuation plate 7, the highly viscous liquid 6 is flowed through nine highly viscous liquid flow passages 7A. The damping force of a mount device is inversely proportional to an area of the highly viscous liquid flow passages 7a, and is proportional to a surface area of the movable attenuation plate 7. It is thus possible to reduce the area of the highly viscous liquid flow passages 7A, and obtain the large damping force. A dynamic spring constant in respect to frequency can also be reduced. |
