PROBLEM TO BE SOLVED: To provide a combine-harvester for preventing grains from being uselessly discharged to its outside when the harvester body turns.SOLUTION: A combine harvester 10 comprises: a transverse transportation unit 15 for clamping and transporting a stock root portion a threshing treatment unit 14 for a threshing treatment a selecting portion 16 for selecting the grains and a waste straw treating unit 17 for accepting the waste straws from the transverse transportation unit and treating the waste straws. The transverse transportation unit is equipped with culm detection unit for controlling the culm detection quantity in the culm detection unit in proportion to the airflow of a second fun disposed in the selecting portion. The waste straw treating unit is equipped with a waste straw detection unit for controlling the airflow of a fan disposed in the separation unit in proportion to the waste straw detection quantity in the waste straw detection unit. The chaff angle of a chaff sieve 26 is proportionally controlled. The control of the chaff angle inversely proportional to the culm detection quantity and proportional to the waste straw detection quantity is made to prefer the chaff angle increasing control to the chaff angle decreasing control.COPYRIGHT: (C)2014,JPO&INPIT【課題】機体の回行時等において穀粒が無駄に機外に排出されて損失されないようにするコンバインの提供。【解決手段】株元部を挟持搬送する横搬送部15と、脱穀処理する脱穀部14と、穀粒を選別処理する選別部16と、横搬送部から排藁を受け継いで排藁処理する排藁処理部17とを備えるコンバイン10において、横搬送部に穀稈検出部を設けて、穀稈検出部における穀稈検出量に、選別部に設けたセカンドファンの風量を比例させて制御するとともに、選別部に設けたチャフシーブ26のチャフ角度を逆比例させて制御し、排藁処理部に排藁検出部を設けて、排藁検出部における排藁検出量に、選別部に設けた唐箕の風量を比例させて制御するとともに、チャフシーブのチャフ角度を比例させて制御するようにして、穀稈検出量に逆比例するとともに排藁検出量に比例するチャフ角度の制御は、チャフ角度を減少させる制御よりも増大させる制御を優先させるようにした。【選択図】図1
