PROBLEM TO BE SOLVED: To provide a walk-behind lawnmower capable of keeping an inclination angle of a cutter constant while being capable of switching to move forward and backward, and tilting the cutter so as to lower the front side in the travelling direction by the switching.SOLUTION: The walk-behind lawnmower capable of switching the travelling direction between a forward movement and a backward movement includes: a body frame (1) travelling wheels (3, 4) a driving part unit (2) attached to the body frame (1) swingably around an axis via pivoting parts (200, 200a) and including a motor (210) and a horizontally rotating cutter (7) a power transmission system (5) for transmitting power of the motor (210) to the travelling wheels (3, 4) a travelling direction switching units (60, 25) for switching the travelling direction between the forward movement and the backward movement and inclination switching units (25, 251, 26, 27, 27a) swinging the driving unit (2) by switching the travelling direction to tilt the cutter (7) so as to lower the front side of the travelling direction at a required angle, and keeping the angle.COPYRIGHT: (C)2012,JPO&INPIT【課題】前進と後進を切り替えることができ、その切り替えによりカッターを走行方向前側が下がるよう傾斜させる歩行型草刈機において、カッターの傾斜角度を一定に維持できる歩行型草刈機を提供する。【解決手段】歩行型草刈機は、走行方向を前進と後進で切り替えることができるものであって、車体フレーム(1)と、走行車輪(3,4)と、車体フレーム(1)に軸支部(200,200a)を介し軸周りに揺動自在に取り付けられており原動機(210)と水平回転式のカッター(7)を備えている駆動部ユニット(2)と、原動機(210)の動力を走行車輪(3,4)に伝える動力伝達系(5)と、走行方向を前進と後進で切り替える走行方向切替手段(60,25)と、走行方向の切り替えにより駆動部ユニット(2)を揺動させてカッター(7)を走行方向前側が下がるように所要角度で傾斜させ、その角度を維持する傾斜切替手段(25,251,26,27,27a)を備えている。【選択図】図7
