LAMINATED RUBBER BEARING CONTAINING LEAD PLUG

摘要

PROBLEM TO BE SOLVED: To provide a laminated rubber bearing containing a lead plug capable of maintaining damping function over a long period by suppressing lead plug deformation resistance according to the shearing deformation of laminated rubber even if the lead plug is not forcibly press-fitted. SOLUTION: This laminated rubber bearing comprises the laminated rubber 1 formed by alternately laminating rubber layers 5 and reinforcement plates 3 and 4 and the lead plug 2 installed in the laminated rubber 1 in vertical direction. The laminated rubber bearing is characterized in that a resistance member 10 resisting the vertical flow of lead at the time of shearing deformation is buried in the lead plug 2. The resistance member 10 comprises a shaft part 11 and a plurality of large diameter parts 12 formed on the outer periphery thereof at intervals in the axial direction. A screw 13 is formed on the outer periphery of the shaft part 11, and the large diameter part 12 is formed of a nut threaded to the screw 13. COPYRIGHT: (C)2004,JPO