Patent ID: 6516941
Filing Date: 2003-02-11
Classification: B65G

Abstract:
A conveyor adjustment device for an agricultural machine including:at least one chain conveyor with at least one chain that is guided over rotatable sprockets mounted on axially parallel shafts; and a tension adjusting device wherein one of the axially parallel shafts is displaceable relative to the other shaft and includes a controllable adjusting unit having an adjusting member and linkage means coupled to the displaceable shaft for adjusting the tension of the chain conveyor, the linkage means including: a plurality of swing levers supporting the displaceable shaft, each swing lever having a pivoting end and a coupled end; a pivotal axis at each pivoting end rotatably mounted in a housing for the chain conveyor; a plurality of coupling rods having first and second ends, each said first end connected with the coupled end of one of the swing levers forming a point of articulation; and a transverse member connected with each of the second ends of the coupling rods and the adjusting member.