NON-DIRECTIONAL VIBRATION DAMPER

PROBLEM TO BE SOLVED: To set a vibration damper to non-directionality exhibiting considerable damping effects in either direction of three axes and hold the damping effects even if the resonant frequency is somewhat fluctuated, by filling liquid in a micro clearance and floating a weight body stored in a casing inside with the uniform micro cavity. SOLUTION: Casings 8, 10 having bowl shapes have 1/2 recessed spherical shapes divided in the cross section passing through the center, and a projecting faucet and a recessed faucet provided concentric to each other in respective mating faces are fitted together to be constituted into an almost complete recessed spheres having the common center. A metal spherical weight body 12 having a diameter a little smaller than the recessed sphere is stored in the recessed sphere inside and fastened and fixed by a plurality of blots 9. Liquid metal is injected in a clearance 111 formed by three bodies of the spherical weight body 12, the casing 8, and the casing 10 from the injection hole 13 of the casing 8 till the height H, and the injection hole 13 and an air hole 14 are sealed by bolts 6, 7 so that the spherical weight body 12 is floated.