The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 09, 1999
Filed:
May. 29, 1997
Daisuke Yaguchi, Ichikawa, JP;
Hiroshi Kurabayashi, Tokyo, JP;
Toshio Omi, Sakura, JP;
Nobuyuki Sone, Yamato, JP;
Takeshi Someya, Kashiwa, JP;
Hirokazu Hora, Ichihara, JP;
Akira Matsuda, Ichikawa, JP;
Takafumi Fujita, Nagareyama-shi, Chiba, JP;
Mitsubishi Steel Mfg. Co., Ltd., Tokyo, JP;
Other;
Abstract
A seismic isolation sliding bearing for a structure, is made up of a dish 1 having a conical concave surface having a predetermined inclination or a spherical concave surface in its central portion, and a bearing element 2 in which the bearing element includes a base 3 whose portion for contact with the concave surface of the dish 1 is formed by a low-friction material, and a holder 6 which holds the base 3 so as to press it against the concave surface of the dish 1. The seismic isolation sliding bearing of the present invention neither resonates to the vibration period of any earthquake nor causes a large oscillation during a normal small vibration, but has a restoring force because of its structure which enables the bearing element to readily return to its original position after an earthquake ceases.