PROBLEM TO BE SOLVED: To improve the efficiency of reaping work in a combine harvester.SOLUTION: The combine harvester includes a first conveying chain (59) for conveying rootstock bases, interlocking a first rake-in ring body (53a) at the right end with a first driving sprocket (58) provided at a reaping support frame (25) a fourth chain (64) for conveying rootstock bases, interlocking a seventh rake-in ring body (53g) at the left end with a third driving sprocket (63) provided at a raising transmission cylinder (57a) and a grain culm joining part (65) formed between the conveyance terminal part of the first chain (59) and the conveyance terminal part of the fourth chain (64) so that the conveyance terminal part of a second chain (60) for conveying rootstock bases, interlocked with a third rake-in ring body (53c) which is the third from the right end, joins an intermediate part in the conveying direction of the first chain (59).COPYRIGHT: (C)2013,JPO&INPIT【課題】コンバインにおける刈取作業の能率を向上させる。【解決手段】右端の第1掻込輪体(53a)と刈取支持フレーム(25)に設けた第1駆動スプロケット(58)を連動する第1株元搬送チェン(59)を設け、左端の第7掻込輪体(53g)と引起伝動筒(57a)に設けた第3駆動スプロケット(63)を連動する第4株元搬送チェン(64)を設け、第1株元搬送チェン(59)の搬送終端部と第4株元搬送チェン(64)の搬送終端部の間に穀稈合流部(65)を形成し、右端から3番目の第3掻込輪体(53c)に連動した第2株元搬送チェン(60)の搬送終端部を第1株元搬送チェン(59)の搬送方向での中間部に合流させる。【選択図】図4
