PROBLEM TO BE SOLVED: To provide a trunk-reaping machine equipped with a function for adjusting the cutting position of the trunk T in accordance with the height of the trunk T.SOLUTION: This trunk-reaping machine is provided by installing a multiple number of nipping conveyers 5 to 7 in vertical direction for nipping the upper part of the trunk T of a plant planted on a field and conveying it from the front part to rear part, cutting the lower part of the trunk T by a first cutting blade 8 installed in the lower direction of front end part of the nipping conveyer 7 and also cutting the middle part of the trunk T by a second cutting blade 22 at the middle part of the nipping conveyer 6. A groove Tb is formed by incising the trunk T of the plant after the cutting with a groove-cutting blade 21 arranged at the upper directional rear side of the cutting blade 22. The nipping conveyers 5, 6, cutting blade 22 and groove cutting blade 21 are constituted as vertical position adjustable based on a machine body 3.COPYRIGHT: (C)2007,JPO&INPIT【課題】幹Tの高さに応じて幹Tの切断位置を調整する機能を備えた幹刈機を提供することである。【解決手段】圃場に植生する植物の幹Tの上部を挟持して、前部より後方に搬送する挟持搬送装置5~7を上下方向に複数設け、挟持搬送装置7の前端部下方に設けた第1の切断刃8で植物の幹Tの下部を切断し、挟持搬送装置6の中間部で第2の切断刃22により幹Tの中間部を切断する。切断刃22の後側上方に配置された溝切刃21で切断後の植物の幹Tに切り込みを入れて溝Tbを形成する。挟持搬送装置5、6と切断刃22と溝切刃21とを機体3に対して上下位置調節可能に構成した。【選択図】図2
