A lawn mower comprising: a power supply; a chassis for holding the power supply; a fixed shaft attached to the chassis; a rotary blade which is rotatably supported with respect to the fixed shaft; a transmitting portion which transmits rotation of the power supply to the rotary blade; and a fixed blade which is coaxially-arranged with the rotary blade, wherein a distance between the rotary blade and the fixed blade can be varied.
申请公布号
US8522519(B2)
申请公布日期
2013.09.03
申请号
US201113233454
申请日期
2011.09.15
申请人
KOBORI KENJI;INAGAWA HIROTO;NISHIKAWA TOMOMASA;HITACHI KOKO CO., LTD.