Patent ID: 7473197
Filing Date: 2009-01-06
Classification: F16H

Abstract:
1. A tensioning device for tensioning flexible drive means, comprising a housing ( 16 ), a tensioning element having at least a tensioning piston ( 3 ) with at least one circumferentially extending groove ( 10 ) and at least one circumferentially extending flange at a tensioning end and a tensioning rail ( 2 ) made of plastic material, wherein the tensioning rail, contacting and guiding the flexible drive means, is injection-molded to the tensioning end of the tensioning piston ( 3 ), and the tensioning rail ( 2 ) completely fills and surrounds the at least one circumferentially extending groove ( 10 ) and the at least one circumferentially extending flange, respectively, of the tensioning piston ( 3 ) such that the tensioning rail ( 2 ) is fixedly and form-fit connected to the tensioning piston ( 3 ), and wherein the tensioning piston ( 3 ) is guided in said housing ( 16 ) in a longitudinally displaceable manner.