Vee belt and pulley drive system for light transmissions

摘要

The drive system (14) is made up of a drive pulley (16), a driven pulley (17) and a vee belt (18). The tension of the vee belt is realised by a tensioning roller (19) characterised in that the roller acts on the tensioned section (21). It is also characterised in that the tensioning roller is mounted on one part (22) of a lever (23) and that a spring (26) is hooked to the other part (25) of this lever.