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. 06, 2010
Filed:
Jan. 20, 2006
Tatsuo Aira, Hirakata, JP;
Shuhei Takahashi, Hirakata, JP;
Tatsuo Aira, Hirakata, JP;
Shuhei Takahashi, Hirakata, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A bearing device for uniformly distributing lubricating oil between first and second bushing sliding surfaces and a connection pin is provided. The connection pin is inserted into the first bushing that is inserted into a boss member. The second bushings are inserted into a pair of bracket members. An oil storage portion is formed at a middle part of the connection pin, and is communicated to an oil feed channel that feeds lubricating oil from the outside. First sealing members and second sealing members are disposed in the first bushing and the second bushings, respectively. A pair of first channels and a second channel are formed inside the connection pin. The first channels are opened in locations in proximity to the first sealing members. The second channel is communicated to this first channel and the oil storage chamber.