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:
Sep. 03, 2002
Filed:
Dec. 28, 2000
Kazutoshi Satori, Saitama, JP;
Toru Sakamoto, Saitama, JP;
Yamashita Rubber Kabushiki Kaisha, Saitama, JP;
Abstract
A cone-shaped mounting ( ) is provided in which a main fluid chamber ( ) is formed by a first connecting member ( ) a second connecting member ( ), an elastic body member ( ), a partition member ( ) and a first orifice passage ( ). A part of an elastic wall of the main fluid chamber ( ) is an inner wall of the elastic body member ( ). The first orifice ( ) communicates with a sub-fluid chamber ( ). An input direction of a main vibration is arranged to be the Z-axis direction (the vertical direction of a car body). Side fluid chambers ( ) and recessed chambers ( ) are alternately provided at intervals of 90° in the circumferential direction on the outer circumference of the elastic body member ( ). An outer wall of the elastic body member ( ) forms a part of an elastic wall of the side fluid chambers ( ). A pair of side fluid chambers ( ) is disposed in the longitudinal direction of the car body. A second orifice ( ) is arranged to communicate with the paired side fluid chambers to provide a cylindrical bushing section ( ). The input direction of a main vibration is set in the longitudinal direction of the car body, while the side fluid chambers ( ) are arranged in the longitudinal direction thereof. With this arrangement, the vibration in the vertical direction can be reduced by the cone-shaped mounting section ( ), the vibration in the longitudinal direction can be reduced by the cylindrical bushing section ( ), by the liquid movement between the fluid chambers.