Base isolator having mutually eccentric rotators

Details Base isolator having mutually eccentric rotators Base isolator having mutually eccentric rotators

1998-02-26

1999-08-10

Kent, Christopher

Static structures (e.g., buildings)

Means compensating earth-transmitted force

Relative motion means between a structure and its foundation

521671, 521676, E04H 902

Patent

active

059340290

ABSTRACT:
A base isolator has four base isolation units placed at four corners between a floor slab and a floor plate. Each base isolation unit has a middle plate, a lower support body which is rotatable in a first direction on the lower side of the middle plate, and an upper support body rotatable in a second direction on the upper side of the middle plate. The upper support body and the lower support body each have mutually eccentric rollers. The middle plates of the four base isolation units are separated from one another so that the plates can be independently displaced or moved.

REFERENCES:
patent: 1761659 (1930-06-01), Cummings
patent: 4687174 (1987-08-01), Helary et al.
patent: 5261200 (1993-11-01), Sasaki et al.

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