PERFECCIONAMIENTOS INTRODUCIDOS EN LAS RUEDECILLAS DE ENRO- LLAMIENTO DE CADENA,EN PARTICULAR PARA LOS CAMBIOS DE VELO- CIDAD DE BICICLETAS Y VEHICULOS SIMILARES

摘要

Guide sprocket wheel comprising a plurality of teeth corresponding to the pitch of the chain, the tops of the teeth being chamfered on bevelled on the periphery and on the lateral faces of the wheel. The angles of incidence of the teeth are cut off by further chamfers or bevels around the profile of the teeth, which gradually reduce the thickness of the teeth from the base to the tops thereof.