PROBLEM TO BE SOLVED: To provide a threshing machine which solves the problem that the rigidity of a sieve plate of an oscillation separation shelf is low, so that the interval is changed by pressure of material to be processed entering the sieve plate to lower the separation accuracy.SOLUTION: In a threshing machine, an oscillation separation shelf 20 which separates material to be processed while transferring backward the same by a blow from a fan and longitudinal reciprocating oscillation is provided below a threshing chamber 11. In the oscillation separation shelf 20, a transfer shelf part 22 for receiving the material to be processed, a sieve 23 for separating grains from foreign matter, and a straw rack 30 are disposed side by side in order from the front. The lower side of the sieve 23 is provided with a separation net 31, and these are formed of synthetic resin material. A gathering plate 43 for guiding the material to be processed dropping from the threshing chamber 11 in the direction intersecting the transfer direction of the material to be processed in a front sieve 26 is disposed above the front sieve 26 facing the transfer terminal end of the transfer shelf part 22 in the sieve 23. In the threshing machine, the gathering plate 43 and a plurality of sieve plates 26A provided on the front sieve 26 are integrated with each other.COPYRIGHT: (C)2014,JPO&INPIT【課題】揺動選別棚のシーブ板の剛性が低く、シーブ板に入り込んだ被処理物の圧力により間隔が変化して選別精度が低くなるという課題がある。【解決手段】脱穀室11の下方に唐箕からの送風と前後方向の往復揺動により被処理物を後方へ移送しながら選別する揺動選別棚20を設け、揺動選別棚20は、被処理物を受け止める移送棚部22と穀粒と異物を選別するシーブ23とストローラック30とを前側からこの順に並べて配置し、前記シーブ23の下側に選別網31を有してこれらを合成樹脂材により形成し、前記シーブ23のうちの前記移送棚部22の移送終端部に臨む前側シーブ26の上側には前記脱穀室11から落下した被処理物を前側シーブ26における被処理物の移送方向と交差する方向へ案内する寄せ板43を配置し、該寄せ板43と前側シーブ26に備える複数のシーブ板26Aを一体化した脱穀装置。【選択図】図3
