VIBRATION-PROOF DEVICE

PURPOSE:To obtain a vibration-proof device capable of floating completely in 3 dimensions by arranging a support plate provided with a device incorporating coaxial inner and outer cylindrical magnetic bodies of an identical polarity repulsing each other with a damping material interposed in between. CONSTITUTION:Multiple magnetic devices 3, each consisting of an inner cylindrical magnetic body 8, an outer cylindrical magnetic body 9 and a damping material 10 interposed in between with both of the cylinders being of an identical polarity repulsing each other and coaxially arranged, are arranged with their extensions of axes intersecting at right angles each other between a base 1 and a support plate 2. The outer magnetic body 9 is fixed to the base 1 while the inner magnetic body 8 is fixed to the support plate 2 via an attachment shaft 11 of a shape such as a U. With this constitution, the support plate 2 loaded with a precision machine or the like can be supported in a condition completely floated in the air over the base 1 due to synergic effects of magnetic repulsion of the magnetic device 3 and vibration absorption of the damping material 10. As a result, harmful vibrations to the precision machine can be reduced.