PROBLEM TO BE SOLVED: To provide a walking type mower with a simple structure which can save power for rotating a mowing blade, while performing mowing work by advancing a traveling machine body and mowing work by reversely moving the traveling machine body.SOLUTION: The machine body frame includes: right and left main frames 31, 32 which face in the anteroposterior direction a front side frame which faces in the lateral direction and a rear part frame which faces in the lateral direction. The mowing blade 10 is supported to the lower part of an engine part E so as to rotate around a vertical shaft center P2. The engine part E is arranged between the right and left main frames 31, 32 and between the front and rear part frames in a side view, and supported to the right and left main frames 31, 32 so as to swing around a lateral shaft center P1. The walking type mower includes an inclined posture-changing mechanism which changes postures of the engine part E and the mowing blade 10 to a front down inclined posture in which the front side of the mowing blade 10 swings downward, and to a rear down inclined posture in which the rear side of the mowing blade 10 swings downward.COPYRIGHT: (C)2012,JPO&INPIT【課題】走行機体を前進させての刈取作業及び走行機体を後進させての刈取作業を可能に構成しながら、刈刃を回転させる動力を節約することができる歩行型草刈機を簡素な構造で実現する。【解決手段】前後向きの右及び左のメインフレーム31,32と、左右向きの前部フレームと、左右向きの後部フレームとを備えて、機体フレームを構成する。原動部Eの下部に刈刃10を上下軸心P2周りに回動自在に支持して、原動部Eを、平面視で右及び左のメインフレーム31,32の間で前部及び後部フレームの間に配置し、且つ、左右軸心P1周りに揺動可能に右及び左のメインフレーム31,32に支持する。刈刃10の前側が下方に揺動した前下がり傾斜姿勢、及び、刈刃10の後側が下方に揺動した後下がり傾斜姿勢に、原動部E及び刈刃10を姿勢変更する傾斜姿勢変更機構を備える。【選択図】図3
