| 摘要 |
PROBLEM TO BE SOLVED: To provide a horizontal force dispersing bearing device capable of preventing the enlargement of the device and keeping the vertical rigidity low without disturbing the rotating function, and enhancing the horizontal rigidity without having a bad influence on a structure. SOLUTION: In this horizontal force dispersing bearing device 10, a reinforcing plate related to one optional layer of a plurality of reinforcing plate layers is formed of a thick reinforcing plate (middle thickness steel plate 16) thicker than reinforcing plates related to other layers (thin steel plates 13), and a stopper block 17b is provided protrusively from either one of a lower shoe 17 and an upper shoe 18. For the vertical direction, since the whole thickness of a laminated rubber 11 acts as an effective thickness, the vertical rigidity can be kept low. For the horizontal direction, since one side (lower side) of the laminated body is surely constrained by the contact of the thick reinforcing plate with the stopper block, and only the opposite side (upper side) of the laminated rubber is freely moved to cope with a horizontal displacement, the horizontal rigidity can be enhanced. COPYRIGHT: (C)2004,JPO
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