Low-bed type seismic isolator for display case

Details Low-bed type seismic isolator for display case Low-bed type seismic isolator for display case

1998-11-02

2000-07-25

Ramirez, Ramon O.

Supports

Including energy absorbing means, e.g., fluid or friction...

248562, 248638, 521671, 521675, 521676, F16M 1300

Patent

active

060927801

ABSTRACT:
A low-bed type seismic isolator for a display case, which includes: at least two lines of arcuate X-rails (3) fixed to a lower plate (1) on a foundation and having lower central portions and higher end portions; at least two lines of arcuate Y-rails (4) fixed to a lower surface of an upper plate (2) above the X-rails (3) and having higher central portions and lower end portions in a direction perpendicularly to the X-rails; connection blocks (5) having lower portions clamping the X-rails, upper portions clamping the Y-rails, and a disk spring provided at the central portions thereof; absorbers (8) disposed on the ends of the X-rails and Y-rails and recesses which fixedly accommodates support legs (7) fixed to the lower surface of the upper plate and protruded downwardly from a seismic isolation object. The seismic isolator does not substantially change the height of a seismic isolation object, and can be applied, for instance, to a display case of a museum, so as to provide the effective seismic isolation as well as to facilitate an inspection to a displayed exhibit The additional provision of casters makes it possible to readily move the seismic isolator to any arbitrary place.

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