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:
Dec. 13, 2011
Filed:
Dec. 17, 2008
Applicants:
Teiji Yamamoto, Hirakata, JP;
Akira Hashimoto, Hirakata, JP;
Hiroshi Yamamoto, Hiratsuka, JP;
Inventors:
Assignee:
Komatsu Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/02 (2006.01); F16C 33/14 (2006.01); B62D 55/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A bearing device includes a bush and a pin inserted into the bush, whereby an outer peripheral face of the pin and an inner peripheral face of the bush contact each other. At least two oil reservoirs are formed on the outer peripheral face of the pin are and elongated along the length of the pin. The interval between the reservoirs is such that an angular range centered on the pin axial center between the first reservoir and the last reservoir is not more than a center angle of 40 degrees centered on the pin axial center. At least one of the reservoirs is configured by a plurality of punctate concave portions.