PROBLEM TO BE SOLVED: To simplify a drive structure for a plurality of granule scattering devices existing in front and behind, and achieve the weight saving of an entire working machine aggregate.SOLUTION: A plurality of granule scattering devices are arranged by distributing into a front side and a rear side in the travelling direction of a traveling machine body. A power branch part is provided in the middle of a power transmission mechanism 6 transmitting a driving force to the plurality granule scattering devices. Power from the power transmission mechanism 6 is branched and input to one end part in the lateral direction of the granule scattering device at the front side, and the other end part of the granule scattering device at the rear side respectively, and the power branch part 61 is provided in the middle part in the lateral direction of a working machine aggregate A.【課題】前後で複数個存在する粉粒体散布装置に対する駆動構造を簡素化し、かつ作業装置集合体全体の軽量化を図る。【解決手段】複数の粉粒体散布装置は、走行機体の進行方向での前方側と後方側とに振り分けて配設され、その複数の粉粒体散布装置に対して駆動力を伝達する動力伝達機構６の途中に動力分岐部が設けられて、前方側の粉粒体散布装置の左右方向での一端部と、後方側の粉粒体散布装置の他端部とのそれぞれに対して、動力伝達機構６からの動力が分岐入力されるように構成され、かつ、動力分岐部６１が作業装置集合体Ａの左右方向での中間部に設けられている。【選択図】図９
