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:
Aug. 29, 2000
Filed:
May. 08, 1998
Applicant:
Inventors:
Isamu Okabe, Hanno, JP;
Tadasu Suzuki, Higashimurayama, JP;
Assignee:
Tsubakimoto Chain Co., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474111 ; 474109 ;
Abstract
To reduce a sliding resistance of a tensioner lever of a transmission chain and to suppress any flapping vibration in a free span portion of the transmission chain, a tensioner lever (1,11) has a tensioner sprocket (2,12) disposed in registry with a bent portion of a transmission chain C having a minimum bent radius of curvature. The tensioner sprocket is pressed by the tensioner lever against the slack run of the transmission chain to form the bent portion, and a shoe member (3,13) is mounted between the tensioner sprocket and a proximal end (1', 11') of the tensioner lever to slidably guide the free span portion of the run.