PROBLEM TO BE SOLVED: To smoothly connect the power transmission when a raising device (8) is attached to a reaping device (4) body, and to make attaching/detaching of the raising device (8) more efficient.SOLUTION: A raising drive shaft (29) for driving the raising device (8) for raising planted grain culms is divided into a drive shaft (29a) on the reaping device (4) body side and a driven shaft (29b) on the raising device (8) side, and the drive shaft (29a) and the driven shaft (29b) can be engaged with and detached from each other. A bearing body (32) for bearing the driven shaft (29b) to the raising device (8) side has an opening/closing cover (33) for switching the state of a coupling part (30b) formed at an end of the driven shaft (29b) to a closed state or to an opened state. The attaching/detaching of the raising device (8) is operatively connected to the opening/closing motion of the opening/closing cover (33) so that the opening/closing cover (33) is opened when the raising device (8) is attached to the reaping device (4) body, and that the opening/closing cover (33) is closed when the raising device (8) is detached from the reaping device (4) body.COPYRIGHT: (C)2012,JPO&INPIT【課題】引起装置(8)の着脱作業の効率化を図る。【解決手段】植立穀稈を引き起す引起装置(8)駆動用の引起し駆動軸(29)を、刈取装置(4)本体側の駆動軸(29a)と引起装置(8)側の被駆動軸(29b)とに分割すると共に、駆動軸(29a)と被駆動軸(29b)とを係合および離脱自在に構成し、被駆動軸(29b)を引起装置(8)側に軸受する軸受体(32)には、被駆動軸(29b)の端部に形成したカップリング部(30b)を閉塞する状態と開放する状態とに切り替える開閉蓋(33)を設け、刈取装置(4)本体に引起装置(8)を取付ける時には開閉蓋(33)が開き、刈取装置(4)本体から引起装置(8)を取外した時には開閉蓋(33)が閉じるように、引起装置(8)の着脱操作と開閉蓋(33)の開閉作動とを連動させる。【選択図】図4
