Patent ID: 6125491
Filing Date: 2000-10-03
Classification: B65G

Abstract:
A dock leveler comprising: a frame mounted to a dock surface, a deck pivotally mounted to said frame, said deck movable between a stored generally horizontally position and an inclined position, a counterbalance mechanism including a first link pivotally secured to said deck and a second link pivotally secured to said frame, ends of said first and second links joined for relative pivoting movement at a common pivot point, a spring coupled at one end to said deck and at another end operably coupled to said common pivot point, said deck having a pin for attachment of said first link and said first link having a mounting hole sized to have width greater than the diameter of the pin, whereby rolling contact occurs between said pin and a surface of said hole said first link pivots, and said frame having a pin for attachment of said second link and said second link having a mounting hole sized to have a width greater than the diameter of the pin, whereby rolling contact occurs between said pin and a surface of said hole said second pin pivots.