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:
Aug. 17, 2021
Filed:
Oct. 05, 2018
Jtekt Corporation, Osaka, JP;
Yoshimichi Higashiyama, Kashihara, JP;
Yusuke Ueda, Tondabayashi, JP;
Tsukasa Sakazaki, Kizugawa, JP;
JTEKT CORPORATION, Osaka, JP;
Abstract
A rolling bearing device includes: a bearing portion; an oil supply unit that has a pump; a first detection portion that detects operation of the pump; a second detection portion that detects the rotational state of the bearing portion; and a processing portion that generates determination information related to the lubrication state of the bearing portion on the basis of a detection signal from the first detection portion and a detection signal from the second detection portion. The processing portion outputs, to the pump, an instruction signal for oil supply when it is determined that operation of the pump is appropriate and that the rotational state of the bearing portion is not appropriate, and re-determines, after the lapse of a predetermined time, whether or not the rotational state of the bearing portion is appropriate.