Patent ID: 6527657
Filing Date: 2003-03-04
Classification: F16G

Abstract:
An endless belt for power transmission with straight runs extending longitudinally between pulleys, said endless belt comprising:a plurality of divided pins comprising a pair of pins, the pins of each pair having rolling surfaces abutting each other, said divided pins having a shape and a length such that opposing end faces of each of said divided pins contact sheave sides of a pulley; a plurality of link plates alternately connected by said divided pins to form a link chain of parallel ranks of said link plates, and blocks, each of said blocks having: at least one longitudinally facing surface with a concave slot for holding one of said pin pairs in cooperation with the concave slot of an adjacent one of said blocks; a central opening receiving said link chain; and opposing, generally planar end face projections, said end face projections projecting transversely from block end faces at opposing sides of said link chain, said planar end face projections tapering together through an angle of inclination predetermined to provide mating with the sheave sides of the pulley, said planar end face projections being located near pitch line and having a shorter radial dimension than said concave slot; and wherein contact of one of said divided pins with the sheave sides is followed, in order, by contact with said planar end face projections of a trailing block having a concave slot holding said one pin.