LONGITUDINAL CONVEYING DEVICE IN COMBINE HARVESTER

PROBLEM TO BE SOLVED: To provide a longitudinal conveying device in a combine harvester, enabling the smooth rotation of an endless rotary belt for conveying cereal culms by installing a tension mechanism capable of surely removing the relaxation of the endless rotary belt for conveying the cereal culms developed accompanying with its far and near adjustment. SOLUTION: This longitudinal conveying device in a combine harvester is constituted by winding an endless rotary belt for conveying cereal culms 14 around plural wheel bodies 8a, 8b, 8c and 8d, closely arranging a nipping rail 15 in the state of facing to the rear end of the endless rotary belt for conveying cereal culms 14 so as to convey by nipping the root side of harvested cereal culms to the feed chain 9 side, constituting the wheel body 8c in the rear end side of the conveyance as far and near adjustably relative to the feed chain 9 in the longitudinal direction of the culms, providing a tension mechanism 13 to remove the relaxation of the endless rotary belt for conveying the cereal culms 14 developed accompanying with the far and near adjustment, and installing an automatic tension mechanism automatically removing the relaxation of the endless rotary belt for conveying the cereal culms 14 capable of following the position change of the endless rotary belt for conveying the cereal culms 14 by an energizing force of an energizing means and a fixed adjustment type tension mechanism 21 for constituting the tension mechanism 13.