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:
Mar. 30, 2021
Filed:
Jul. 05, 2019
Jtekt Corporation, Osaka, JP;
Koichiro Tsurumi, Utsunomiya, JP;
JTEKT CORPORATION, Osaka, JP;
Abstract
A columnar rotator support shaft supports a planet gear that is a rotator, and has a raceway surface formed on the outer peripheral surface of the rotator support shaft so that a plurality of rollers roll on the raceway surface. The rotator support shaft includes a hollow portion formed so as to be recessed in an axial direction from both axial end faces, a plug serving as a sealing member that seals at least one of openings of the hollow portion at both the end faces, an oil inlet passage through which lubricating oil is supplied into the hollow portion sealed with the plug, and an oil outlet passage through which the lubricating oil in the hollow portion is supplied to the raceway surface. The oil outlet passage passes through the rotator support shaft from the raceway surface to the sealed hollow portion.