Patent ID: 6171209
Filing Date: 2001-01-09
Classification: F16G

Abstract:
A back-drive-type silent chain comprising:a plurality of rows of interleaved links, each of said links having a pair of circular apertures at both ends thereof, said apertures defining a horizontal centerline between their centers, each of said links having a pair of teeth on each of opposite sides of said center line of said apertures, said links being connected with one another by round pins received in said apertures,guide links being placed on the outer edges of alternate rows of said links, each of said guide links having a pair of apertures, said apertures defining a horizontal centerline between their centers, each of said round pins having ends being press-fit into said apertures of said guide links, each of said guide links including a pair of flat outside surfaces and at least one window hole, said pair of flat outside surfaces being formed on the opposite sides of and equally spaced from said horizontal centerline of said guide links apertures,said pair of flat outside surfaces being adapted to contact a surface of a corresponding chain tensioner arm, said window hole having edge portions in the vicinity of said guide link apertures, said window hole edge portions being formed of arcuate surfaces, said arcuate surfaces being equally spaced from an associated aperture.