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    • 17. 发明授权
    • Lawn mower
    • 割草机
    • US07249450B2
    • 2007-07-31
    • US10998901
    • 2004-11-29
    • Tetsuo IidaTakao KobayashiHiromitsu SasakiKenzo ShimadaMasanori Shin
    • Tetsuo IidaTakao KobayashiHiromitsu SasakiKenzo ShimadaMasanori Shin
    • A01D67/00
    • A01D42/005A01D34/71A01D2101/00
    • A lawn mower comprises a power source for rotatably driving an output shaft, a housing having an interior space having a generally spiral-shaped portion, and a cutting blade disposed in the interior space of the housing and connected to the output shaft for rotation therewith to cut grass. The rotating cutting blade coacts with the spiral-shaped portion of the interior space to generate a swirling air flow that causes the cut grass to swirl within the interior space. A grass discharge passage communicates with the interior space of the housing and discharges therethrough grass cut by the cutting blade and swirling within the interior space of the housing. A pivotal shutter is pivoted about a generally vertical axis by manual operation of a control member to open and close the grass discharge passage. The pivotal shutter comprises a pivotal shaft and a unitary shutter member mounted on the pivotal shaft to undergo pivotal movement therewith for opening and closing the grass discharge passage.
    • 割草机包括用于可旋转地驱动输出轴的动力源,具有大致螺旋状部分的内部空间的壳体和设置在壳体的内部空间中并连接到输出轴以与其一起旋转的切割刀片 割草。 旋转的切割刀片与内部空间的螺旋状部分共同作用以产生旋转的气流,其使得切草在内部空间内旋转。 草排出通道与壳体的内部空间连通,并且通过切割刀切割的草排出并在壳体的内部空间内旋转。 通过控制构件的手动操作来枢转快门围绕大致垂直的轴线枢转以打开和关闭排草通道。 枢转快门包括枢转轴和安装在枢转轴上的整体挡板,以便与其枢转运动以打开和关闭排草通道。