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:
Mar. 25, 2014
Filed:
Mar. 13, 2009
Kentaro Yamamoto, Osaka, JP;
Takahiro Ohguchi, Osaka, JP;
Gen Isawa, Osaka, JP;
Kengo Hase, Osaka, JP;
Norimitsu Furusawa, Osaka, JP;
Katsuhiro Sakurai, Aichi, JP;
Kentaro Yamamoto, Osaka, JP;
Takahiro Ohguchi, Osaka, JP;
Gen Isawa, Osaka, JP;
Kengo Hase, Osaka, JP;
Norimitsu Furusawa, Osaka, JP;
Katsuhiro Sakurai, Aichi, JP;
Toyo Tire & Rubber Co., Ltd., Osaka-shi, Osaka, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
In a liquid-sealed type vibration isolator having a first orifice flow channeland a second orifice flow channel, a valve memberformed of a rubber elastomeric membrane for opening and closing the second orifice flow channelis provided on a partitioning memberso as to be orthogonal to the direction of flow in the second orifice flow channel. The valve member is held at the outer peripheral portion thereof by a wall surface of a valve housing chamber, and includes inside the outer peripheral portion thereof a membrane portionB which is subjected to the flexural deformation by the liquid flow in the second orifice flow channel to close openingsC andD of the second orifice flow channel. Communicating holeswhich bring the second orifice flow channel into communication are provided at positions not overlapped with the opening of the membrane portionB. Accordingly, the switching of characteristics is enabled with an inexpensive structure.