| 摘要 |
<p>PURPOSE: An automatic weeder is provided to implement an automatic weed eliminating operation based on the power of the weeder and to protect crops in a weed eliminating process based on a crop protecting unit. CONSTITUTION: A supporting rod(10) embeds a rotary shaft(11). A housing(20) is installed at end part of the supporting rod. A worm is detachably fixed to the housing and is in connection with end part of the rotary shaft. A worm wheel is embedded into the housing to be rotatable in order to reduce torque transmitted from the rotary shaft. Blades(50) are detachably installed to both end parts of the rotary shaft. A protecting cover(60) is movably fixed along the supporting rod. A crop protecting unit(70) protects crops during a weed eliminating operation by being installed at one side of the housing.</p> |
