PROBLEM TO BE SOLVED: To provide a farm working machine which enables the efficient performance of a border coating operation.SOLUTION: The farm working machine 1 includes a machine frame 2 for being connected to a tractor. A turning frame 11 is turnably attached to a frame attached part 9 of the machine frame 2. The turning frame 11 is composed of a parallel crank mechanism 15 which has a pair of first front and rear parallel opposed links 13a and 13b facing each other in a state being isolated from each other, and a pair of second right and left parallel opposed links 14a and 14b facing each other in a state being isolated from each other. Operating means 21 for carrying out the border coating operation is attached to the turning frame 11. When the tractor advances and swings at a corner part of a field, the operating means 21 carries out the border coating operation while moving rectilinearly along a levee A on the basis of the turning of the turning frame 11 with respect to the machine frame 2, and the turning of the second opposed links 14a and 14b with respect to the opposed links 13a and 13b.COPYRIGHT: (C)2008,JPO&INPIT【課題】効率よく畦塗り作業ができる農作業機を提供する。【解決手段】農作業機1は、トラクタに連結する機枠2を備える。機枠2のフレーム被取付部9には、回動フレーム11を回動可能に取り付ける。回動フレーム11は、互いに離間対向する前後一対の平行な第1対向リンク13a,13bおよび互いに離間対向する左右一対の平行な第2対向リンク14a,14bを有する平行クランク機構15にて構成する。回動フレーム11には、畦塗り作業をする作業手段21を取り付ける。圃場の隅部におけるトラクタの前進旋回時に、機枠2に対する回動フレーム11の回動と第1対向リンク13a,13bに対する第2対向リンク14a,14bの回動とに基づいて作業手段21が畦Aに沿って直進移動しながら畦塗り作業をする。【選択図】図1
