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. 10, 2017
Filed:
Mar. 18, 2015
Tsubakimoto Chain Co., Osaka-shi, Osaka, JP;
Yuji Kurematsu, Osaka, JP;
Yudai Takagi, Osaka, JP;
TSUBAKIMOTO CHAIN CO., Osaka-shi, JP;
Abstract
Provided is a chain tensioner that can, with a simple structure, supply sufficient and necessary oil when restarted after a long time after the stop of oil supply, and control pressing force in accordance with operating conditions during the drive, thereby reducing vibration of the chain not only when restarted but also during the drive. In a chain tensionerin which a plungerinserted in a plunger bore of a tensioner bodyis biased outward by biasing meansprovided in an oil pressure chamberto be extendable and contractible, an oil supply hole, an oil supply space, and a plunger holethat together form a continuous oil supply passage is formed in such a shape that an oil amount changes in accordance with a position of the plunger