PROBLEM TO BE SOLVED: To provide a grass mower in which a cylinder operated when the inclination angle of a working portion to be attached to a tractor and to perform a grass mowing operation is turned and changed is miniaturized in the same turning condition.SOLUTION: In the grass mower attached to a tractor and to perform a grass mowing operation, the grass mower includes a fitting portion 110 fitted to the tractor 200, an attaching member 30 connected to the fitting portion 110, the working portion 150 turnably supported perpendicular to the attaching member 30 and performs a grass mowing operation and the cylinder 180 for turning the working portion 150. The cylinder 180 is mounted in such a way that the direction of the extension of the cylinder 180 is in a direction in which the center of gravity of the working portion 150 raised when the working portion 150 is turned.COPYRIGHT: (C)2012,JPO&INPIT【課題】トラクタに装着して草刈り作業を行う作業部の傾斜角度を回動させて変更させる際に作動させるシリンダを同じ回動条件に対してより小型にすることができる草刈機を提供することを目的とする。【解決手段】トラクタに装着して草刈作業を行う草刈機において、トラクタ200に装着する装着部110と、装着部110と連結される取付部材30と、取付部材30に垂直方向に回動可能に支持されて草刈作業を行う作業部150と、作業部150を回動させるシリンダ180とを有し、シリンダ180は、作業部150を回動させるとき作業部150の重心が持ち上がる方向がシリンダ180の伸びる方向になるように取り付けられる。【選択図】図1
