Patent ID: 9526210
Filing Date: 2016-12-27
CPC Classification: A01D

Claim Text:
1. A draper platform for attachment to a combine harvester, the draper platform comprising: a center section adapted to be attached to a feed channel of a combine harvester, the center section comprising a center frame; lateral sections arranged laterally on opposite ends of the center section, wherein the lateral sections each comprise a lateral frame and are pivotable relative to the center section about a pivot axis that is at least approximately oriented in a travel direction of the draper platform; a cutter bar; pivotable arms having a first end connected to the cutter bar and a second end connected to the center frame or the lateral frames, respectively, so that the cutter bar is pivotably connected to the center section and the lateral sections; conveying devices adapted to convey cut stalk material; drive devices operatively connected to the cutter bar and the conveying devices; wherein the pivotable arms are arranged such that less than one of the pivotable arms is present per meter of the working width of the draper platform on average relative to the total working width; wherein the cutter bar has a stiffness that varies across the working width and a cutter bar section of the cutter bar between two of the pivotable arms neighboring each other is embodied stiffer in a central area of the cutter bar section than in lateral areas of the cutter bar section so that a stiffer section and less stiff sections are formed.