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:
Jan. 07, 2025
Filed:
Oct. 24, 2023
Tsubakimoto Chain Co., Osaka, JP;
Yuichiro Ishikawa, Osaka, JP;
TSUBAKIMOTO CHAIN CO., Osaka, JP;
Abstract
A chain tensioner that can ensure oil with such a volume that sufficiently fills a pressure oil chamber in a tensioner body and can quickly fill the pressure oil chamber with the oil with a simple constitution and without increasing a size of the tensioner body is provided. In a chain tensioner including a tensioner body having a plunger holding hole, a plunger, and urging means that is telescopically accommodated in a pressure oil chamber and urges the plunger, the plunger holding hole has a plunger holding wall sliding with the plunger and a plunger holding bottom-surface part, an oil storing chamber is provided on an outer periphery side of the plunger holding wall, and on an end part on the plunger holding bottom-surface part side of the plunger holding hole, a check valve unit that connects the pressure oil chamber and the oil storing chamber are provided.