PROBLEM TO BE SOLVED: To solve problems that the flow to the rear is bad on a first separation net to cause trouble in first grade separation and deterioration of separation performances is resulted because the conventional first separation net is stretched in a horizontal posture.SOLUTION: An apparatus for shaking separation is designed to receive threshing treated materials from a threshing chamber and carry out screening and separation while shaking and transferring the threshing treated materials. The apparatus for shaking separation is composed of a transfer shelf 22 for receiving the threshing treated materials from the starting end side of the threshing chamber and shaking and transferring the threshing treated materials, chaff sieves 23a and 23b provided subsequently to the terminal end of the transfer shelf, a straw rack 24 continuous to the terminal ends of the chaff sieves, a netlike primary grain sieve 25 and a netlike secondary grain sieve 26 arranged at the upper front and rear of a first grade recovering and receiving trough 18a under the chaff sieves. In the front and rear primary/secondary grain sieves, the primary grain sieve is kept in a downward tilted posture so as to lower the feed terminal end side and the secondary grain sieve is kept in an upward tilted posture so as to raise the feed terminal end side. Thereby, the front and rear primary/secondary grain sieves are arranged and composed in a nearly V-shaped state when viewed from the side.COPYRIGHT: (C)2007,JPO&INPIT【課題】従来の第1選別網は、水平姿勢に張設されたものであるため、この第1選別網上では、後方への流れが悪く、1番選別に支障をきたし、選別性能の低下を招く問題がある。【解決手段】扱室からの脱穀処理物を受け入れて揺動移送しながらふるい選別する揺動選別装置であって、扱室始端側からの処理物を受けて揺動移送する移送棚22と、この移送棚の終端に引き続いて設けられたチャフシ-ブ23a,23bと、該チャフシ-ブの終端に続くストロ-ラック24と、前記チャフシ-ブの下方で1番回収受樋18aの上方前後に配備された網状の一次グレンシーブ25及び二次グレンシーブ26とからなり、この前後の一次・二次グレンシーブのうち、一次グレンシーブは送り終端側が低くなるよう下り傾斜姿勢とし、二次グレンシーブは送り終端側が高くなるよう上り傾斜姿勢として側面視で略V字型に配置構成してあることを特徴とする。【選択図】図3
