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:
May. 25, 2021
Filed:
Nov. 19, 2020
Applicant:
Enplas Corporation, Kawaguchi, JP;
Inventors:
Koki Hisai, Kawaguchi, JP;
Kazuki Yamada, Kawaguchi, JP;
Assignee:
ENPLAS CORPORATION, Kawaguchi, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2010.01);
U.S. Cl.
CPC ...
F16H 57/0482 (2013.01); F16H 57/043 (2013.01); F16H 57/045 (2013.01); F16H 57/0427 (2013.01);
Abstract
A lubrication system for a planetary gear device includes a planetary gear mounted on a planetary gear shaft. The shaft is mounted in a shaft hole that allows the gear to rotate freely about the shaft. Lubricant reservoirs formed as voids or spaces on the inner surface of the shaft hole and outer surface of the shaft provide additional volume for lubricant to lubricate the shaft and shaft hole interface. These lubricant reservoirs extend the lifespan of the lubricant and reduce maintenance requirements of the planetary gear.