PROBLEM TO BE SOLVED: To provide a mechanism capable of improving molding efficiency of a roll baler such as efficiently conveying forage crops by preventing the forage crops to be conveyed from being fallen outside the roll baler, and loading the forage crops in an even state with respect to a molding chamber.SOLUTION: Forage crops B fallen in a forage crops conveyance space 43 reaches a conveyance surface 431 and a guide surface 431A. Conveyance protrusions 53 protrudingly provided on the outer periphery of an endless track body 52 of a conveyer 5 convey the forage crops B having reached the conveyance surface 431 and the guide surface 431A towards an exit 430 in such a manner as raking the forage crops B by conveying rotation of the endless track body 52.【課題】搬送される飼料作物の機外へのこぼれ落ちを防止し、飼料作物を効率的に搬送できると共に、成形室に対して均等な状態で飼料作物を投入できるなど、ロールベールの成形効率を向上させる機構を提供する。【解決手段】飼料作物搬送空間４３に落下した飼料作物Ｂは、搬送面４３１及び案内面４３１Ａに至り、搬送コンベヤ５の無限軌道体５２の外周に突設された搬送突起５３が、搬送面４３１及び案内面４３１Ａに至った飼料作物Ｂを、無限軌道体５２の搬送回転によって掻き取るように出口４３０に向かって搬送する。【選択図】図１
