Round baler apron tensioning system

Harvesters – Raking and bundling

Patent

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Details

100 88, A01D 3900, B30B 506

Patent

active

046568204

ABSTRACT:
A system for tensioning the bale forming apron of a round baler includes first and second pairs of drive sprockets for moving the apron. The first pair of drive sprockets are driven at a first speed, and the second pair of drive sprockets are driven at a second speed which is slightly slower than the first speed. This differential in sprocket speeds tensions the inner course of the apron extending between the first and second pairs of drive sprockets. The system also includes a slip clutch assembly for temporarily disengaging the second pair of drive sprockets from being driven at the second speed whenever the differential between the first and second speeds reaches a preset limit.

REFERENCES:
patent: 4343141 (1982-08-01), Oellig et al.
patent: 4426833 (1984-01-01), Campbell
patent: 4470247 (1984-09-01), Mast

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