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:
Oct. 23, 2018
Filed:
Aug. 06, 2015
Bridgestone Corporation, Tokyo, JP;
Hiroshi Kojima, Tokyo, JP;
Toru Ebara, Tokyo, JP;
BRIDGESTONE CORPORATION, Chuo-ku, Tokyo, JP;
Abstract
A liquid-filled bushing () includes an inner tube () and an outer member (). The outer member () defines a pair of liquid chambers between the outer member () and the inner tube (), and an orifice portion () in which an orifice passage () which communicates with the liquid chambers is formed. An elastic body () which elastically connects together the orifice portion () and the inner tube () is provided. The pair of liquid chambers are individually disposed on both sides between which the inner tube () is interposed. A first protrusion portion () which protrudes outward in the radial direction and is fitted into the elastic body is formed in the inner tube (), and a second protrusion portion () which protrudes inward in the radial direction and is fitted into the elastic body () is formed in the orifice portion (). The first protrusion portion () and the second protrusion portion () are disposed in both portions between the pair of liquid chambers adjacent in a circumferential direction such that positions of the portions in the circumferential direction coincide with each other and positions of the portions in the direction of the center axis are different from each other.