PROBLEM TO BE SOLVED: To enable a work implement to be used in both surface seeding work (or seedling planting work) and in intermediate work.SOLUTION: The work implement includes: a travel machine body a work implement body 40 connected in a rear part of the travel machine body a medicine feed part B arranged in the work implement body 40 and feeding medicine to a paddy field surface a lifting/lowering mechanism L capable of lifting/lowering freely a work implement body 40 with respect to the travel machine body and a connection mechanism connecting the work implement body 40 so as to be relative oscillated around a front/rear axis core X with respect to the travel machine body. A lock mechanism T inhibiting oscillation of the travel machine body and work implement body 40 around the front/rear axis core X is arranged at an intermediate position of a lifting/lowering range of the work implement body 40 by the lifting/lowering mechanism L.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2017,JPO&INPIT【課題】表面播種作業(又は、苗植付け作業)と中間作業との両方に使用できるようにする。【解決手段】走行機体と、走行機体の後方に連結される作業機体40と、作業機体40に備えられて、田面に薬剤を供給する薬剤供給部Bと、走行機体に対して作業機体40を昇降自在な昇降機構Lと、走行機体に対して作業機体40を前後軸芯X周りに相対的に揺動自在に連結する連結機構と、を備え、昇降機構Lによる作業機体40の昇降範囲の中間位置において、走行機体と作業機体40との前後軸芯X周りの揺動を阻止するロック機構Tとを備えている。【選択図】図6
