PROBLEM TO BE SOLVED: To shorten the whole length of a machine body and a paddy implement when the paddy implement is liftably and lowerably supported at the rear of the machine body in the paddy working machine.SOLUTION: The paddy working machine is obtained by liftably and lowerably supporting a grounding body 9 on the lower side of a supporting frame 18 arranged in the right and left directions in the paddy implement and installing a detecting part 51 on the upper side of the supporting frame 18. A linking member 45 passing through the supporting frame 18 in the vertical directions and movably supported in the vertical directions is installed to connect the lower part of the linking member 45 to the grounding body 9 and the upper part of the linking member 45 is connected to the detecting part 51. A lifting and lowering control means for operating a lifting and lowering mechanism is installed so as to maintain the paddy implement at the set height from the paddy surface based on the detection with the detecting part 51.COPYRIGHT: (C)2009,JPO&INPIT【課題】 水田作業機において、機体の後部に水田作業装置を昇降自在に支持した場合、機体及び水田作業装置の全長を短くする。【解決手段】 水田作業装置に左右方向に配置された支持フレーム18の下側に、接地体9を昇降自在に支持して、支持フレーム18の上側に検出部51を備える。支持フレーム18を上下方向に貫通し上下方向に移動自在に支持された連係部材45を備えて、連係部材45の下部を接地体9に接続し、連係部材45の上部を検出部51に接続する。検出部51の検出に基づいて、水田作業装置が田面から設定高さに維持されるように、昇降機構を作動させる昇降制御手段を備える。【選択図】 図6
