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:
Sep. 04, 2018
Filed:
Nov. 15, 2016
Tsubakimoto Chain Co., Osaka-shi, Osaka, JP;
Masanori Watanabe, Osaka, JP;
Kohei Kunimatsu, Osaka, JP;
TSUBAKIMOTO CHAIN CO., Osaka-shi, JP;
Abstract
Provided, is a simple-structured tensioner that can. favorably expel the air that has entered an oil pressure chamber, while enabling a reduction in size in the axial direction, and in processing and assembling workload. The tensionerincludes a relief mechanism made up of a relief holeand a disc-like orifice memberA first main surfaceof the orifice memberis provided with an outer circumferential annular grooveformed along an outer peripheral edge and a communication groovethat extends from a central portion of the first main surfaceto the outer circumferential annular grooveThe orifice memberhas a plurality of notchesarranged along a circumferential direction in the outer peripheral edge of the orifice member