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:
Jun. 27, 1995
Filed:
Jul. 21, 1994
Keijiro Iwao, Yokosuka, JP;
Ichiro Yamazaki, Komae, JP;
Nissan Motor Co., Ltd., Kanagawa Prefecture, JP;
Abstract
A chain drive device comprising at least a plural sprockets and a chain having a plural links and wrapped around said sprockets, and which chain drive device transmitting a driving force between said sprockets through said chain, is characterized in that, with reference to at least one of said sprockets, twice a number of said links wrapped around said sprocket is set as an odd number in case of a wrapping angle of said chain to said sprocket being less than 90.degree., and twice a number of the links wrapped around said sprocket is set as an even number in case of a wrapping angle of said chain to said sprocket being equal to or more than 90.degree.. Such a construction achieves noise reducing effect without providing additional parts.