PROBLEM TO BE SOLVED: To economically respond to troubles such as deformation and breakage of a guide plate while preventing lowering of grain recovery efficiency caused by free grains over a rack, and effectively suppressing lowering of threshing performance, etc.SOLUTION: The threshing device includes a clamping transfer mechanism 6 to clamp the base-side of a reaped culm and transport the culm, a threshing cylinder rotating to perform threshing treatment to the ear-side of the reaped culm transported by the clamping transfer mechanism 6, and a guide plate 47 guiding the grains flowing down to the base-side of the reaped culm toward the threshing cylinder according to the rotation of the threshing cylinder. The guide plate 47 is composed of a plurality of plates 48, 49 aligned along the transfer direction of the reaped culm and above the reaped culm transferred by the clamping transfer mechanism 6, and these multiple plates 48, 49 are adjacently placed at front and back positions and butted with each other in a manner to bring the rear end 48A of the front-side plate 48 into contact with the front end 49A of the rear-side plate 49.COPYRIGHT: (C)2013,JPO&INPIT【課題】ガイド板に変形や欠損などが生じた場合の対処を経済的に行えるようにしながら、ささり粒による穀粒回収効率の低下を防止するとともに、脱穀性能の低下などを効果的に抑制できるようにする。【解決手段】刈取穀稈の株元側を挟持して刈取穀稈を搬送する挾持搬送機構6と、回転駆動されることにより、挟持搬送機構6により搬送される刈取穀稈の穂先側に扱き処理を施す扱胴と、扱胴の回転に伴って刈取穀稈の株元側に流下する穀粒を扱胴に向けて案内するガイド板47とを備え、ガイド板47を、挟持搬送機構6により搬送される刈取穀稈に対する上方の位置に、刈取穀稈の搬送方向に沿って整列配置される複数の板体48,49で構成し、複数の板体48,49を、前後に隣接する前側の板体48の後端縁48Aと後側の板体49の前端縁49Aとが接するように突き合わせ配置してある。【選択図】図3
