Random arrangement type silent chain

Abstract

A random arrangement type silent chain restricting run-upon phenomenon to sprocket teeth to reduce contact noise at inner engagement surface and vibration noise of free span and restricting abnormal elongation and excessive load during power transmission, is provided. In the silent chain a first link plate, which begins to engage with the sprocket tooth by an inner crotch and sits on by an outer flank, and a second link plate, which engages with and sits on the sprocket tooth only by the outer flank, are mixed and combined endlessly in a chain longitudinal direction. A mixture ratio of the first link plates to the total link plates is set to less than 50% and at least one or more of the second link plates are randomly arranged before and after the first link plates. The run-upon phenomenon to the sprocket teeth is thus restricted.

Dependencies are inferred from the claim text.