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:
Oct. 09, 2012
Filed:
Apr. 22, 2010
Yoichi Sekii, Kyoto, JP;
Hironao Sasaki, Kyoto, JP;
Takuro Iguchi, Kyoto, JP;
Hironori Ando, Kyoto, JP;
Toshihiro Akiyama, Kyoto, JP;
Takunori Shinao, Kyoto, JP;
Yuichi Shigematsu, Kyoto, JP;
Yoichi Sekii, Kyoto, JP;
Hironao Sasaki, Kyoto, JP;
Takuro Iguchi, Kyoto, JP;
Hironori Ando, Kyoto, JP;
Toshihiro Akiyama, Kyoto, JP;
Takunori Shinao, Kyoto, JP;
Yuichi Shigematsu, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A bearing mechanism includes a shaft, a sleeve portion, a thrust portion, and a cover portion. Lubricating oil is arranged in a communicating channel in the sleeve portion, a thrust gap between the sleeve portion and the thrust portion, and a tapered gap between an outside surface of the thrust portion and the cover portion. A lower end opening of the communicating channel is defined in an outer circumferential portion of a lower surface of the sleeve portion radially outward of the thrust gap. A radially outermost portion of the thrust portion is arranged either tangent to a wall surface of the communicating channel or closer to a central axis than the wall surface. The tapered gap is arranged closer to the central axis than a radially outermost point of the wall surface. The outer circumferential portion and the cover portion define a guide gap therebetween.