Drive roller with ribs for the draper canvas of a crop header
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United States of America Patent
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Jul 16, 2013
Grant Date -
Sep 20, 2012
app pub date -
Mar 16, 2011
filing date -
Mar 16, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A crop harvesting header with a cutter bar and a draper assembly has a draper canvas driven by a drive roller with a cylindrical roller body having an outer surface surrounding an axis of rotation of the roller for engaging an inner drive surface of a canvas wrapped therearound. The roller has a plurality of ribs arranged on the outer surface of the roller body extending along a part of the body in an axial direction and angularly spaced around the outer surface. The ribs have a height less than 6 mm and a width less than 6 mm arranged such that the ribs do not engage into any recesses in the drive surface of the canvas.
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