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:
Aug. 01, 2017
Filed:
Aug. 07, 2015
Bridgestone Corporation, Tokyo, JP;
Masakazu Nagasawa, Yokohama, JP;
Akira Ueki, Kamakura, JP;
Shuhei Ono, Yokohama, JP;
Yasuyuki Nagashima, Yokohama, JP;
BRIDGESTONE CORPORATION, Chuo-ku, Tokyo, JP;
Abstract
A vibration isolator includes a partition member () that partitions a liquid chamber () in a first mounting member () into a primary liquid chamber () using an elastic body () as a part of a wall surface thereof and a secondary liquid chamber (), and a movable member () housed in a housing chamber () provided within the partition member (), the movable member being free to be deformed or displaced in an axial direction of the first mounting member (). The partition member () is provided with a plurality of communicating holes () that extend from a portion of the partition member () which is exposed to the primary or secondary liquid chamber (or) toward the inside of the partition member and are open toward the movable member (). The partition member () is equipped with partition plate parts (and) of which front and back surfaces are directed in the axial direction of the first mounting member, the partition plate parts dividing the housing chamber () from the primary and dividing the housing chamber from secondary liquid chamber (or). The communicating holes () include communicating pores () which pass through the partition plate parts (and), and each of which has an inner diameter of 3.6 mm or less.