| 摘要 |
PROBLEM TO BE SOLVED: To provide a base isolation device having a damping device capable of exhibiting a stable structure supporting function by a rigid ball and a stable damping function by an elastic ball during an input of vibration. SOLUTION: The base isolation device 1 having the damping device incluldes a combination of: a base isolating rigid ball support 10 having a lower plate body 11 with a conical face 12a as the upper face on the vibration input side and having a circular guard at the outer peripheral part of the conical face 12a, an upper plate body 21 having a conical face 22a with an angle different from the conical face of the lower plate body 11 as the lower face at a base isolating object side and having a circular guard at the outer peripheral part of the conical face 22a, and the rigid ball 27 disposed at the center of both conical faces 12a, 22a; and a damping elastic ball support 30 having a lower plate body 11 with a conical face 12a as the upper face at the vibration input side, an upper plate body 22 with a conical face 22a as the lower face at the damping object side, and the elastic ball 29 disposed at the center of both conical faces 12a, 22a, having a diameter larger than that of the rigid ball 27, and generating rolling frictional resistance. COPYRIGHT: (C)2011,JPO&INPIT |
