HEAD-FEEDING COMBINE

PROBLEM TO BE SOLVED: To provide a head-feeding combine capable of eliminating trouble for switching a vertical carrier device into a state easy in hand-feeding threshing work. SOLUTION: This head-feeding combine is provided with a threshing depth adjusting mans which is constituted so as to change and adjust the posture of the vertical carrier device 10 based on culm length detecting information, and a grain culm supply guide 12 is constituted to be freely position change possible from a pinching actuation posture for pinching grain culms from a vertical carrier device along a grain culm carrying direction as against the carrier start end part of a feed chain 11 to a pile threshing evasion posture for opening the carrier start end part of the feed chain 11. In this case, a pile threshing mode detecting means 15 for detecting whether the grain culm supply guide 12 is in the pinching actuation posture or in the evasion posture is provided and also a threshing depth forcibly operating means for forcibly operating the vertical carrier device 10 to a deep threshing side when the pile threshing mode detecting means 15 detect the evasion posture is provided.