PROBLEM TO BE SOLVED: To provide a paddy work machine configured in such a way that: a ground leveling device is supported in the front part of a ground work device freely vertically movably and power of the ground work device is transmitted to the ground leveling device and the ground leveling device is not rotationally driven at a high position being a non-work position..SOLUTION: The paddy work machine includes: a ground leveling device 53 which is supported in the front part of the ground work device freely vertically movably and a second vertically moving mechanism 56 which vertically moves the ground leveling device 53 with respect to the ground work device, from a work position A3 where the ground leveling device 53 is in contact with a surface of paddy G and a non-work position A4 over the surface of paddy G or vice versa. The paddy work machine further includes: a transmission mechanism 80 for transmitting power from the ground work device to the ground leveling device 53 a clutch mechanism 77 for freely transmitting and cutting off the power transmitted to the ground leveling device 53 and clutch operation means 95, 96, 97 for operating the clutch mechanism 77 to a cut-off state when the ground leveling device 53 rises to the non-work position A4.COPYRIGHT: (C)2015,JPO&INPIT【課題】対地作業装置の前部に整地装置を昇降自在に支持して、対地作業装置の動力を整地装置に伝達するように構成した水田作業機において、整地装置が非作業位置という高い位置で回転駆動される状態がないように構成する。【解決手段】整地装置53を対地作業装置の前部に昇降自在に支持し、対地作業装置に対して整地装置53を田面Gに接地する作業位置A3及び田面Gから上方に位置する非作業位置A4に亘って昇降させる第2昇降機構56を備える。対地作業装置からの動力を整地装置53に伝達する伝動機構80と、整地装置53に伝達される動力を伝動及び遮断自在なクラッチ機構77を備える。整地装置53が非作業位置A4に上昇すると、クラッチ機構77を遮断状態に操作するクラッチ操作手段95,96,97を備える。【選択図】図8
