Patent ID: 6623391
Filing Date: 2003-09-23
Classification: F16H

Abstract:
A blade and spring sub-assembly apparatus for use in a chain tensioner of a chain drive system, said chain tensioner sub-assembly apparatus comprising:a blade having first and second opposite end portions joined together by a central portion, said blade defining an exterior chain guide surface adapted for slidingly abutting an associated chain of an associated chain drive system; a tensioning spring connected to said blade, said spring having opposite first and second ends located respectively adjacent said first and second opposite end portions of said blade, said spring contacting and exerting a biasing force on said central portion of said blade; a hub defined by said first end portion of said blade, said hub connected to said central portion of said blade by a first end wall and defining a through-bore adapted for receipt of an associated pin for pivotably connecting said blade to an associated mounting bracket; and, a rib projecting outwardly from said first end wall in a direction moving away from said second end portion of said blade.