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Patent Searching and Data


Title:
SEISMIC ISOLATION DEVICE USING BALL AND SPRING
Document Type and Number:
WIPO Patent Application WO/2020/171275
Kind Code:
A1
Abstract:
The present invention relates to a seismic isolation device, in which a bottom surface of a central groove formed in an upper end of a lower plate, where an attenuation device is located, is formed to be inclined, the attenuation device including a ball member inserted in an indentation groove formed in a lower portion thereof and a plurality of springs connected to side surfaces thereof so as to attenuate the transfer of vibration, so that the restoring force of the springs can be further improved. According to the present invention, the seismic isolation device using the ball and springs comprises: the lower plate including the central groove in the upper end thereof, the bottom surface of the central groove being inclined towards the center thereof; the attenuation device including a fixing groove in an upper end thereof, a base portion on the upper end thereof, the base portion being supported by one or more vertical springs, a support portion extending upward from a side surface thereof to support a side surface of the base portion, a hemispherical indentation groove formed in a lower end thereof, and a plurality of horizontal springs connected to the internal wall of the central groove, the plurality of horizontal springs being connected to the side surface of the attenuation device at regular intervals; and the ball member which is inserted in the indentation groove so as to support the attenuation device in a state of contacting the bottom surface of the lower plate, wherein the ball member maintains the position of the attenuation device while rotating due to the frictional force with the bottom surface.

Inventors:
LEE SANG HEE (KR)
Application Number:
PCT/KR2019/002961
Publication Date:
August 27, 2020
Filing Date:
March 14, 2019
Export Citation:
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Assignee:
LEE SANG HEE (KR)
International Classes:
F16F15/02; F16F15/04
Foreign References:
KR20170062916A2017-06-08
JPS6443643A1989-02-15
JP2018091387A2018-06-14
JPH0925737A1997-01-28
CN108119599A2018-06-05
Attorney, Agent or Firm:
AHN, Je Sung (KR)
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