| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vibration-proof roller including inner and outer metal fittings, a vibration-proof elastic body and an outer peripheral elastic body, having a variable radial spring constant. Ž<P>SOLUTION: In this vibration-proof roller 1, the inner metal fitting 2 holding a bearing on the inner peripheral side and the outer metal fitting 4 disposed on the outer peripheral side thereof are connected to each other through the vibration-proof elastic body 5 disposed between both metal fittings, and the outer peripheral elastic body 6 is provided on the outer peripheral surface of the outer metal fitting 4. Both elastic bodies 5, 6 are respectively provided with hollow parts 5a, 6a, both hollow parts are communicated with each other through communicating passages 10, 11, and compressive fluid such as air is enclosed in both hollow parts. A plurality of communicating passages are provided, some of the communicating passages 10 are provided with a one-way valve 12 for allowing the fluid to flow from the outer hollow part 6a toward the inner hollow part 5a, the other communicating passages 11 are provided with an opposite one-way valve 13, and both communicating passages are provided to be different in flow characteristics of the fluid from each other. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
