PROBLEM TO BE SOLVED: To provide an implement comprising a work part which vertically moves between an agricultural material supply part and a paddy field surface and supplies the agricultural material to the paddy field surface, capable of setting a proper supply amount of the agricultural material.SOLUTION: An implement comprises a speed change gear 32 for changing speed of power of an engine 4. The implement comprises a power transmission device S for branching the speed changed power output by the speed change gear 32 into travel power and the work power, and comprising a travel power transmission system X for outputting the travel power to travel units 2, 3, and a work power transmission system Y for outputting the work power to a work part 22. The work power transmission system Y comprises, in an order of transmitting power to the work part 22, a stepless speed change gear 35, a deceleration mechanism 60, and a work part speed change gear 70 for applying speed fluctuation to rotation speed of one round rotation of the work part 22.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2020,JPO&INPIT【課題】農用資材供給部と田面との間を上下に回転運動しつつ農用資材を田面に供給する作業部を備える作業機において、農用資材の供給量を適切に設定できるようにする。【解決手段】原動機４の動力を変速する変速装置３２を備えている。変速装置３２が出力する変速動力を走行用動力と作業用動力とに分岐させ、走行用動力を走行装置２，３に向けて出力する走行用動力伝達系Ｘ、及び、作業用動力を作業部２２に向けて出力する作業用動力伝達系Ｙを有する動力伝達装置Ｓを備えている。作業用動力伝達系Ｙに、作業部２２に向けて動力伝達する順番に、無段変速装置３５と、減速機構６０と、作業部２２の一回転の回転速度に緩急を付ける作業部変速装置７０と、が備えられている。【選択図】図６
