Draper belt tensioning mechanism for a harvesting platform

Details Draper belt tensioning mechanism for a harvesting platform Draper belt tensioning mechanism for a harvesting platform

A - Human Necessities

01

D

A01D 57/20 (2006.01) A01D 61/02 (2006.01) B65G 23/44 (2006.01)

Patent

CA 2292198

A draper belt tensioning mechanism for a harvesting platform includes a linkage having a bell crank coupled to the belt idler roller to move the idler roller away from the drive roller when the bell crank is rotated to tension the draper belt. A strut coupled to the bell crank and a spring biasing the strut produces the force to tension the belt. The linkage, except for the spring, is enclosed within the belt envelope. A spring gauge is positioned adjacent the spring to readily determine if the spring is compressed to the desired length. In a preferred embodiment, the spring and gauge are located to be visible by a machine operator.

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