PROBLEM TO BE SOLVED: To allow reaped grain culms to be received smoothly and transferred to a feeding chain by speed-variably driving a receiving chain, which is arranged at a starting end position of transportation of a feeding chain, at a speed synchronizing with the travelling speed of a grain culm transportation device in a reaping transportation device side.SOLUTION: There are provided a feeding chain (10) which receives the reaped grain culms from a grain culm transportation device (27) in a reaping transportation device (3) side and transports the grain culms a receiving chain (11) arranged at a starting end position of transportation of the feeding chain (10) and a reaping transmission path (8) for speed-variably driving the reaping transportation device (3) and the receiving chain (11) from an HST (32) which is driven by an engine (5). It is configured that the reaping transmission path (8) is connected to a device body inner end side of a shaft which is pivotally supported by a reaping frame (3a) side which supports the reaping transportation device (3), and the driving is transmitted to a driving shaft (14) side of the receiving chain (11) from a device body outer end side of the shaft.COPYRIGHT: (C)2014,JPO&INPIT【課題】フィードチェンの搬送始端部に位置する受継ぎチェンが、刈取搬送装置側の穀稈搬送装置の駆動速度にシンクロした速度で変速駆動されるものとし、刈取穀稈を円滑に受け継いでフィードチェンへ受け継がせる。【解決手段】刈取搬送装置(3)側の穀稈搬送装置(27)から穀稈を受け継いで搬送するフィードチェン(10)とフィードチェン(10)の搬送始端部に位置する受継ぎチェン(11)を備え、エンジン(5)によって駆動されるHST(32)から刈取搬送装置(3)と受継ぎチェン(11)を変速駆動する刈取伝動経路(8)を備える。また、刈取伝動経路(8)を、刈取搬送装置(3)を支持する刈取フレーム(3a)側に軸架した軸の機体内側端部に接続し、この軸の機体外側端部から受継ぎチェン(11)の駆動軸(14)側へ伝動する構成とする。【選択図】図3
