To provide a damping device demonstrating a high base isolation effect with respect to a normal seismic wave, and suppressing resonance due to long period earthquake motions.
A movable member 40 and a movable support member 30 are included, respectively engaged with a table 12 for mounting a base isolation object and a fixed body 11, disposed between the table and the fixed body, and mutually contacting and relatively moving in at least one direction following relative movement of the table and the fixed body. In the movable member 40 and the movable support member 30, constant frictional force is generated in a range from an origin position to a preset predetermined distance by relative movement and mutual sliding, and in a range further away from the origin position than the predetermined distance, frictional force is generated, larger than the constant frictional force and becoming gradually larger away from the origin position.
SAITO HIROKAZU
HAGIWARA TETSUO
HORIBATA SEISAKUSHO KK
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Sakai Hiromi
Go Wakayama