PROBLEM TO BE SOLVED: To provide a self-propelled roll baler which can rotate a shredding member at a high speed separately from other working portions.SOLUTION: The self-propelled roll baler includes a reaping portion for reaping feed crops a feeding portion for shredding and feeding the feed crops reaped in the reaping portion a baler-forming portion for processing the shredded feed crops fed in the feeding portion into approximately cylindrical bales and an engine portion for driving these working portions, wherein a power outputted from the engine portion is branched and transmitted into the shredding member disposed in the feeding portion to shred the feed crops and a transmission case for transmitting the power to other working portions.COPYRIGHT: (C)2013,JPO&INPIT【課題】細断体を他の作業部とは個別に高速回転させることができる自走式ロールベーラを提供すること。【解決手段】飼料作物を刈り取る刈取部と、刈取部により刈り取った飼料作物を細断するとともに送給する送給部と、送給部により送給された細断飼料作物を略円柱状のベールとなすベーラ形成部と、これら作動部を駆動する原動機部を具備する自走式ロールベーラにおいて、原動機部から出力される動力は、送給部に設けて飼料作物を細断する細断体と、他の作業部に動力を伝動する伝動ケースに分岐させて伝動するようにした。【選択図】図11