| 摘要 |
Provided is a seismic-isolation device for a rack, said device enabling seismic-isolation performance to be maintained over a long period. A rack (2) is provided with a storage shelf (3) which includes: a pallet base (30) that is disposed so as to be moveable in a loading/unloading direction D, and onto which is placed a pallet (not shown in the figure) for holding a load; and a crosspiece (31) that is fixed to support columns (20a, 20b) and that supports the pallet base (30) from the bottom-surface side of the pallet base (30). Rail bearings (10) have formed on the bottom surface thereof first inclined surfaces (1013), which are inclined upwards from one end of the loading/unloading direction D towards the other end thereof, and second inclined surfaces (1023), which are inclined upwards from the other end of the loading/unloading direction D towards the one end thereof, and the rail bearings are attached to the bottom surface of the pallet base (30). Support parts (11): are provided with shafts (111), which support the rail bearings (10) by being in sliding contact with the first inclined surfaces (1013) and the second inclined surfaces (1023); and are attached to the crosspiece (31). |
