PROBLEM TO BE SOLVED: To provide a thresher that can improve a threshing performance.SOLUTION: The thresher is provided with a guide member 52 in which a grain culm inlet 60 to introduce a grain culm before threshing to a threshing chamber 57 is disposed to be formed at a space of a threshing chamber cover 56, and an ear tip part of a grain culm before threshing can be guided from an outside of a threshing chamber 57 to the threshing chamber through the grain culm inlet 60. The thresher is provided with a plant root conveyor 71 in which the grain culm can be transported along a rotary shaft direction of a threshing cylinder 18 while sandwiching a plant root part of the grain culm so that the ear tip part of the grain culm is guided by the guide member 52 and is introduced in the threshing chamber 57 through the grain culm inlet 60. The thresher is provided with an ear tip conveyor 75 in which the ear tip part of the grain culm in which a plant root part is transported by the plant root conveyor 71 can be transported to face the grain culm inlet 60 while the ear tip part is guided by the guide member 52. A threshing cylinder 18 is provided with two or more threshing teeth 62 that project from the outer peripheral surface toward an outside of a radial direction of the threshing cylinder 18. Each of two or more threshing teeth 62 is flatly formed along a parallel plane to the rotary shaft direction.COPYRIGHT: (C)2013,JPO&INPIT【課題】脱穀性能を向上させることができる脱穀装置を提供する。【解決手段】脱穀前の穀稈を扱室57内に導入するための穀稈導入口60を扱室カバー56との間に形成するように配置されて、脱穀前の穀稈の穂先部を扱室57外から穀稈導入口60を介して扱室内まで案内可能な案内部材52を備える。穀稈の穂先部が案内部材52によって案内されて穀稈導入口60を介して扱室57内に導入されるように、穀稈の株元部を挟持しながら扱胴18の回転軸方向に沿って搬送可能な株元搬送装置71を備える。株元搬送装置71によって株元部を搬送されている穀稈の穂先部を当該穂先部が案内部材52で案内されながら穀稈導入口60に向かうように搬送可能な穂先搬送装置75を備える。扱胴18に、その外周面から当該扱胴18の径方向外側に向かって突出する複数の扱歯62を備える。複数の扱歯62のそれぞれを、前記回転軸方向に平行な平面に沿って扁平に形成する。【選択図】図5
