PROBLEM TO BE SOLVED: To aim at the improvement of sorting performance by effectively performing the sieve-sorting treatment of a sorting shelf.SOLUTION: A winnower (18) is installed below in the front part of a swing-sorting shelf (10) for receiving and swing-sorting the thresh-treated materials delivered from a threshing chamber (3), and a dust-sucking fan (21) above in the rear part of the swing-sorting shelf (10) to extend out a first sieve-sorting shelf (7) from a discharged straw-discharging port (6) part formed at the rear end of the threshing chamber (3) in rear direction, and installing a second sieve-sorting shelf (13) at the upper position of the swing-sorting shelf (10) and also at the lower directional position than the first sieve-sorting shelf (7), also a third sieve-sorting shelf (14) at the rear directional position of the swing-sorting shelf (10) to arrange the rear part of the first sieve-sorting shelf (7) and the front part of the second sieve-sorting shelf (13) by overlapping vertically, and to arrange the rear part of the second sieve-sorting shelf (13) and the front part of the third sieve-sorting shelf (14) by overlapping vertically.COPYRIGHT: (C)2013,JPO&INPIT【課題】選別棚の篩選別処理を効果的に行わせ、選別性能の向上を図る。【解決手段】扱室(3)からの脱穀処理物を受け入れて揺動選別する揺動選別棚(10)の前部下方に唐箕(18)を設け、揺動選別棚(10)の後部上方には吸塵ファン(21)を設け、扱室(3)後端に形成した排藁排出口(6)部から第1篩選別棚(7)を後方へ延出し、揺動選別棚(10)の上部であって、第1篩選別棚(7)よりも下方の部位に第2篩選別棚(13)を設けると共に、揺動選別棚(10)の後方部位には第3篩選別棚(14)を設け、第1篩選別棚(7)の後部と第2篩選別棚(13)の前部とを上下にオーバーラップさせて配置し、第2篩選別棚(13)の後部と第3篩選別棚(14)の前部とを上下にオーバラップさせて配置する。【選択図】 図1
