PROBLEM TO BE SOLVED: To provide a combine harvester which facilitates wiring to a detection sensor, and enables compact arrangement of a detection body and the detection sensor in the combine harvester, in which the detection body and the detection sensor for detecting a ground height of a reaping part liftable relative to a traveling machine body are provided at the lower side of the reaping part, and can retract the detection body during rotational traveling.SOLUTION: A combine harvester includes: a reaping part 4 a detection body 30 supported on the lower end part of the reaping part 4 so as to be vertically swingable and a detection sensor 31 capable of detecting a ground height of the reaping part 4 by being fixed on a reaping part 4 side so as to detect a vertical swinging position of the detection body 30. The detection body 30 has a detection member 34 linked with the detection sensor 31 so as to be a detection target of the detection sensor 31, and supported on the reaping part 4 in a vertically swingable manner, and retreating members 37, 39 which are operated to perform a retreating operation of vertically rotating or horizontally rotating relative to the detection member 34 during backing travel or horizontal rotary travel.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2019,JPO&INPIT【課題】走行機体に対して昇降可能な刈取部の下部側に、該刈取部の対地高さを検出する検知体及び検出センサを設け、旋回走行時に検知体を退避させることのできるコンバインにおいて、前記検出センサへの配線が容易であるとともに、前記検知体と検出センサとをよりコンパクトに配置できるコンバインを提供することを課題としている。【解決手段】刈取部4と、該刈取部4の下端部に上下揺動可能に支持された検知体30と、該検知体30の上下揺動位置を検知するように前記刈取部4側に固定されることにより、前記刈取部4の対地高さを検出可能な検出センサ31とを備え、前記検知体30は、前記検出センサ31の検知対象になるように該検出センサ31と連係して前記刈取部4に対して上下揺動可能に支持された検出部材34と、後進走行時又は左右旋回走行時に前記検出部材34に対して上下回動又は左右回動する退避作動が行われる退避部材37,39とを有する。【選択図】図3
