PROBLEM TO BE SOLVED: To provide a combine harvester for carrying out an interlocking control of vehicle speed for interlocking a vehicle speed with the drive speed of a reaping part, which excellently maintains a reaping operation efficiency in a field approach without making an operator operation complicated.SOLUTION: The combine harvester is equipped with a transmission 46 for the speed change of power to a reaping part 4 for performing a reaping operation of grain culms, a vehicle speed detection means for detecting a vehicle speed, a control part 58 for performing an interlocking control of vehicle speed for interlocking a vehicle speed detected by the vehicle speed detection means with a drive speed of the reaping part 4 and a change operation tool 62. The control part 58 carries out change of the interlocking control of vehicle speed and a raking control for driving the reaping part 4 at a constant speed regardless of a vehicle speed on the basis of the operation of the change operation tool 62 and changes a raking speed being the drive speed of the reaping part 4 in raking control on the basis of prescribed conditions. Further, the combine harvester is equipped with a forward tilting detection means 61 for detecting a forward tilting posture of vehicle body. When a forward tilting posture of vehicle body is detected through the forward tilting detection means 61 in a raking control, the control part 58 judges that the combine harvester is in a reaping operation in approach of the vehicle body to a field and automatically reduces the raking speed.COPYRIGHT: (C)2011,JPO&INPIT【課題】車速に刈取部の駆動速度を連動させる車速連動制御を行うコンバインにおいて、圃場進入時の刈取作業効率をオペレータの操作を煩雑化させること無く、良好に維持できるコンバインを提供することを目的とする。【解決手段】本発明は、穀稈の刈取作業を行う刈取部4への動力を変速する変速装置46と、車速を検出する車速検出手段と、車速検出手段により検出された車速に刈取部4の駆動速度を連動させる車速連動制御を行う制御部58と、切換操作具62とを備え、制御部58が、切換操作具62の操作に基づいて、前記車速連動制御と、車速に関係無く刈取部4を一定速で駆動させる掻込制御との切換を行うとともに、掻込制御時の刈取部4の駆動速度である掻込速度を所定条件に基づいて変更するコンバインにおいて、車体の前傾姿勢を検出する前傾検出手段61を設け、制御部58が、掻込制御時に前傾検出手段61を介して車体の前傾姿勢が検出
