< Topic >Seedling height 40 centimeters with weeding job of the interrow space of the paddy rice under, not to push down the neck of the rice plant, furthermore without damaging the root or the lobe of the rice plant, try to be able to do weeding job, on that, interval of each interrow space of the rice plant maintaining 30 centimeters and at the rice field which rice planting is done, the grass of the interrow space of the seedling of the rice plant which that time has grown, of to the utmost, be able to complete weeding with weeding job one time, in addition, seedling height 40 centimeters to try to be able to weed even with the grass which grew equally to the paddy rice under, total weight of the weeding machine with the general adultIf it was, offer of the weeding machine of the weight where anyone raises easily.SolutionsThe blade which is bent in U letter condition being installed, it turns around the vertical axis, 2 rotary weeding disks which have the major diameter which is close to the interval of the actual interrow space of that time, maintaining the height as much as possible uniformly vis-a-vis the soft soil surface of the paddy field, while possessing the kind of stand which it can advance, it turns the paddy field due to power source.< Choice figure >Drawing 1【課題】苗丈が40センチメートル程度未満の水稲の条間の除草作業で、稲の首を倒さず、しかも稲の根も葉も傷めずに除草作業ができるようにし、その上、稲の各条間の間隔が30センチメートルを保って田植えされた田では、その時生えている稲の苗の条間の草を、極力、一度の除草作業で除草を済ませられ、また、苗丈が40センチメートル程度未満の水稲と同等程度に成長した草でも除草できるようにし、除草機の全重量を一般の大人であったなら誰でも容易に持ち上げられる重量の除草機の提供。【解決手段】U字状に曲げられた刃が取り付けられて鉛直軸の周りに回転する、その時の実際の条間の間隔に近い外径を持つ2枚の回転除草円盤を、水田の軟質土壌面に対してその高さをできるだけ一定に維持して水田を前進できるようなスタンドを具備しながら、動力源により回転させる。【選択図】図1
