Patent ID: 6238311
Filing Date: 2001-05-29
Classification: F16H

Abstract:
A blade tensioner assembly for use with a chain comprising:a bracket having a sidewall and a tab portion spaced outwardly from and substantially parallel to said sidewall, said tab portion having a notch formed therein,a pivot pin attached to said bracket and projecting laterally from said sidewall,a blade spring having first and second ends,a shoe having first and second ends adapted to receive said first and said second ends of said blade spring, said shoe being made of a plastic material which will creep when subjected to continuous stress applied thereto by said blade portion during operation of said chain along said blade portion,said first end of said shoe having a first bore formed therein,said second end of said shoe having a second bore formed therein, said shoe being pivotally disposed on said pivot pin by said second bore in said second end of said shoe,a cylindrical sleeve having a hollow center being disposed in said first bore of said shoe, said cylindrical sleeve and said notch in said bracket being substantially aligned,a retaining pin having an end inserted through said hollow center of said cylindrical sleeve, said retaining pin having a portion engaging said notch in said tab to thereby retain said shoe in a fixed position.