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    • 8. 发明授权
    • Lawn mower
    • 割草机
    • US06449933B1
    • 2002-09-17
    • US09789488
    • 2001-02-20
    • Hideya UmemotoYoshikazu TogoshiMasahiro YamadaYoshiyuki EsakiAkira MinouraKazuo Samejima
    • Hideya UmemotoYoshikazu TogoshiMasahiro YamadaYoshiyuki EsakiAkira MinouraKazuo Samejima
    • A01D6100
    • A01D34/6806A01D43/0635A01D43/077A01D2101/00
    • A lawn mower with a vehicle body; an engine mounted on the vehicle body; caster-type front wheels; a rear wheel unit having a left rear drive wheel and a right rear drive wheel; a mower unit disposed between the front wheels and rear wheel unit; a left stepless transmission for transmitting drive, switched between forward drive and backward drive, to the left rear wheel; and a right stepless transmission for transmitting drive, switched between forward drive and backward drive, to the right rear wheel; wherein the right and left stepless transmissions are operable independently of each other. A caster-type auxiliary ground wheel unit (9) is disposed rearwardly of the rear wheel unit and supported by a support member (24) to be vertically movable relative to the vehicle body. A braking mechanism (30) is provided for braking an upward movement of the support member.
    • 割草机与车身; 安装在车体上的发动机; 脚轮式前轮; 具有左后驱动轮和右后驱动轮的后轮单元; 设置在前轮和后轮单元之间的割草机单元; 用于将向前驱动和向后驱动之间切换的驱动的左无级变速器传递到左后轮; 以及用于将向前驱动和向后驱动之间切换的驱动传递到右后轮的右无级变速器; 其中所述右和左无级变速器可彼此独立地操作。 脚轮式辅助地砂轮单元(9)设置在后轮单元的后方并由支撑构件(24)支撑,以相对于车体垂直移动。 提供制动机构(30)以制动支撑构件的向上运动。