Abstract: Automatic coupling of a header to a feeder in an agricultural machine. The agricultural machine comprises a feeder (1) and a detachable header (2), the feeder comprising at least one or more rotatable cams (15) and hooks (16), rotatable around a common axis (14), the cams being arranged to gradually lower the distance between the feeder and the header, by rotating the cams (15) away from the header, the hooks being arranged to grip a bar or pin (18) located on the header as the cams are being rotated away from the header, thereby securing the header to the feeder.

Abstract: The present invention is related an agricultural machine of the combine harvester type. The machine comprises a feeder (1) and a detachable header (2), the feeder comprising at least one or more rotatable cams (15) and hooks (16), rotatable around a common axis (14), the cams being arranged to gradually lower the distance between the feeder and the header, by rotating the cams (15) away from the header, the hooks being arranged to grip a bar or pin (18) located on the header as the cams are being rotated away from the header, thereby securing the header to the feeder. According to the preferred embodiment, a combine harvester according to the invention is further equipped with an automatic coupling mechanism (6) for coupling the feeder drive shaft to the header drive shaft, the coupling mechanism involving axial coupling claws (30,31) which interlock as a consequence of the reducing of the distance between the header and the feeder, through the rotation of the cams (15).