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:
Apr. 29, 2014
Filed:
Jun. 22, 2009
Junichi Wake, Nabari, JP;
Junichi Wake, Nabari, JP;
BorgWarner Inc., Auburn Hills, MI (US);
Abstract
To increase the pressing force on a chain as the chain undergoes greater elongation. [Resolving Means] Provision is made for: a tensioner armin which a through-holeis formed at a free endwhich can pivot about a pivoting end; a hydraulic tensionerfor causing the tensioner armto pivot about the pivoting end; a lever armhaving a boss partwhich is rotatably supported in the through-holeat the free endand comprises a pin insertion holeat a position which is offset from the center O of the through-hole, said lever arm also having a lever partwhich extends from the boss parttoward the hydraulic tensionerwith the tip end of a pistonof the hydraulic tensionerin abutment against it; and a pinof which one end is fitted in a fixed wall, and of which the other end is inserted into the pin insertion holeof the boss partof the lever arm. When the pistonof the hydraulic tensionerextends, the lever armpivots about the pin, whereby the amount of pushing by the free endof the tensioner arminto a chainis increased.