PROBLEM TO BE SOLVED: To solve a problem in which, conventionally, a grounding plane part of a reaping device side retreats to the upper part when coming in abutment with a protrusion of a field surface, however a ground contact area of this grounding plane part is small, and therefore the upward retreat is not in time and it plunges into the field and is easily damaged.SOLUTION: A combine is provided with a threshing device 3 in the upper part of a traveling device 2 and is provided with a reaping device 4 having a grass divider 7 and a cutting blade 10 at the front of the threshing device 3. The combine is characterized as follows: the reaping device 4 is supported by reaping upper and lower cylinders 19 in the vertically adjustable manner and is configured to enable upward retreat by the push-up from a field surface； and a float 25 is provided at the reaping device 4 side between a tip end of the cutting blade 10 and a front end of a crawler 24 of the traveling device 2, and also being grounded at the field surface to support the reaping device 4.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2018,JPO&INPIT【課題】従来、刈取装置側の接地平面部が圃場面の凸部に当接すると上方退避するが、この接地平面部の接地面積が小さいため、上方退避が間に合わず、圃場に突っ込み、破損しやすくなる問題がある。【解決手段】走行装置２の上方に脱穀装置３を設け、該脱穀装置３の前方に分草装置７と刈刃１０有する刈取装置４を設けたコンバインにおいて、前記刈取装置４は刈取上下シリンダ１９によって上下調節自在に支持されると共に圃場面からの突き上げによって上方退避可能な構成とし、前記刈刃１０の先端部と走行装置２のクローラー２４の前端部との間に、刈取装置４側に設けられ、圃場面に接地して刈取装置４を支持するフロート２５を設けたことを特徴とするコンバイン。【選択図】 図４
