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:
Jul. 01, 2003
Filed:
Feb. 15, 2002
Yosei Kodama, Osaka, JP;
Yukio Takashima, Osaka, JP;
Nobuya Yoshida, Aichi, JP;
Takashi Miyake, Aichi, JP;
Toyo Tire & Rubber Co., Ltd., Osaka, JP;
Abstract
This invention provides a switching type liquid-in vibration isolating device capable of opening/closing an orifice by changing over between the atmospheric and negative pressure in a switching chamber corresponding to shake and idle vibration, respectively. In order to prevent a pipe, for introducing the atmospheric and negative pressure in the switching chamber, from disconnecting, a first and a second fitting are connected by a vibration isolating substrate , a partition member , a first and a second diaphragm are disposed within a hollow space thereof, a main liquid chamber and a sub-liquid chamber are interconnected by two inside and outside orifices , a equilibrium chamber is formed between the first and second diaphragm , a switching chamber is formed between the second diaphragm and the second fitting , the center portion of the bottom wall of the second fitting is depressed toward the switching chamber , a pipe is pierced into the top of the depressed portion and received in the depressed portion , and a plurality of convex portions for interference prevention are outwardly projectively provided on the bottom wall around the depressed portion