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. 21, 2003
Filed:
Mar. 13, 2002
Yukio Takashima, Osaka, JP;
Yosei Kodama, Osaka, JP;
Toyo Tire & Rubber Co., Ltd., Osaka, JP;
Abstract
A liquid-in vibration isolator has an orifice hole mainly for audible sound provided on a first sub-liquid chamber and connected to a second sub-liquid chamber. When the first sub-liquid chamber is reduced to lower pressure and contracted due to large downward displacement caused by vibration and the diaphragm of the vibration isolator approaches the partition portion of the vibration isolator, the center plate portion of the orifice member is a convex with the center portion projected to the first sub-liquid chamber side, and the orifice hole is provided at a low portion of the center plate portion disposed eccentrically with respect to the isolator axis. Therefore, even being in contact with the center plate portion, the diaphragm hardly comes into contact with the orifice hole, or if it comes into contact with the orifice hole, it does not cover the orifice hole so as to interfere with proper function of the orifice hole.