| 摘要 |
An elastic supporter, an elastic support unit, and a seismic support unit using the same with a high ability to absorb vertical impacts applied to a seismic isolation guide are provided. The seismic isolation guide 10 includes two sets of upper and lower rolling guide parts 10A, 10B each having track rails 20A, 20B and movable blocks 30A, 30B incorporating therein a plurality of rows of endlessly circulating rolling members 40A, 40B which are in rolling contact with the track rails 20A, 20B, respectively. The two sets of rolling guide parts 10A, 10B are arranged in a vertically opposite relation with respect to each other so as to place the respective track rails 20A, 20B at vertically opposite ends, respectively. The respective track rails 20A, 20B are arranged orthogonal to each other, and the respective movable blocks 10A, 10B are integrally fixed to each other. There are provided elastic support units 60A, 60B, to each of which at least one of the upper and lower track rails 10A, 10B of the seismic isolation guide 10 is fixedly secured. The elastic support units 60A, 60B are each constructed such that two elastic supporters 6, each of which includes an elastically deformable bed plate 61 having two mutually parallel sides, and side wall portions 62 that supports the two parallel sides of the bed plate 61 at a prescribed height, are superposed one over the other in a vertical direction, and the elastic supporters 6 are arranged in a vertically opposite relation with respect to each other so that the respective bed plates 61 are positioned at vertically opposite ends with the respective side wall portions 62 being disposed orthogonal to each other. The track rails 20A, 20B are fixedly secured to the bed plates 61, respectively, of the elastic supporters 6, 6 of the elastic support units 60A, 60B in parallel to the side wall portions 62.
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