PROBLEM TO BE SOLVED: To provide a threshing part structure of a threshing apparatus which prevent decrease of grain recovering efficiency due to grains inserted into the foot of straw culms, and efficiently suppress deterioration of threshing performance, while economically dealing with deformation, defect or the like of a guide plate.SOLUTION: The threshing part structure includes a holding transfer mechanism 6 for holding the plant foot side of reaped grain culm and transferring the reaped grain culm, a threshing cylinder 9 for performing threshing of the ear tip side of the reaped grain culm transferred by the holding transfer mechanism 6 by being rotated and driven, and a guide plate 47 for guiding grains flowing downward to the plant root side of the reaped grain culm, accompanied with rotation of the threshing cylinder 9, wherein, the guide plate 47 is formed of plural plate bodies 48 and 49 arranged along the transfer direction of the reaped grain culm at a position of the upper side against the reaped grain culm transferred by the holding transfer mechanism 6, and plurality of adjacent back and forth plate bodies 48 and 49 are set so that a rear end edge 48A of the plate body 48 of the front side and a front end edge 49A of the plate body 49 of the rear side are made to butt against each other.COPYRIGHT: (C)2009,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9と、扱胴9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
