The invention relates to a working rig and aims to provides a working rig of a soil working device adopting a configuration that power transmission systems for transmitting power to three soil working rollers do not interfere with one another. the soil working device provided with a soil working roller (27a) at center and a pair of soil working rollers (27a) at right and left is equipped with a roller transmission shaft (72) for transmitting power to a driving shaft of the soil working roller (27a) at one side form one side of a running vehicle body, a first transmission mechanism (73a) for transmitting power to a driving shaft of the soil working roller (27b) at center form the driving shaft of the soil working roller (27a) at the side, and a second transmission mechanism (73b) for transmitting power to a driving shaft of the soil working roller (27a) at the other side form the driving shaft of the soil working roller (27b), and roller transmission shafts are arranged at arbitrary outside of the first transmission mechanism in left and right direction to configure at least one transmission shaft of the first transmission mechanism and the second transmission mechanism in a manner that the more the transmission shaft is near the front, the more the transmission shaft is near the inside on the left and right direction.提供具備對3個整地裝置傳達動力之動力傳動系統不互相干涉之配置之整地裝置之作業機。設置具有左右中央之中央整地轉子27b與左右一對之側部整地轉子27a之整地裝置，具備從行進車體側往一側之側部整地轉子27a之驅動軸傳動之轉子傳動軸72、從該一側之側部整地轉子27a之驅動軸往中央之中央整地轉子27b之驅動軸傳動之第1傳動軸73a、從中央整地轉子27b之驅動軸往另一側之側部整地轉子27a之驅動軸傳動之第2傳動軸73b，於第1傳動軸73a之左右任一方向外側配置轉子傳動軸72，將第1傳動軸73a與第2傳動軸73b之中至少第1傳動軸73a配置為從後側越往前側越縮向左右方向內側。
