PROBLEM TO BE SOLVED: To provide a technique that enhances a weeding effect by a rocking tooth and prevents algae from tangling all over to the rocking tooth, in a weeding device having the rocking tooth for weeding between seedling roots and the circumference.SOLUTION: A weeding device of the present invention has an interrow space rotation weeding unit 40 for generating a water flow from the front to the rear by rotation, and a hill space weeding unit 50 having a plurality of rocking type weeding mechanisms 52. The rocking type weeding mechanisms 52 are disposed at the rear of the interrow space rotation weeding unit 40. As a result, the algae and weeds in the circumference of the rocking type weeding mechanisms 52 are easily drained to the rear owing to the water flow generated by the interrow space rotation weeding unit 40. Accordingly, the weeding effect of the rocking type weeding mechanisms 52 is improved, and the algae and weeds are prevented from tangling all over to the rocking type weeding mechanism 52 and being accumulated therein. Also, the rocking type weeding mechanisms 52 are disposed at the position not overlapped with the interrow space rotation weeding unit 40 in the longitudinal direction. Thus, the weeds raised by the interrow space rotation weeding unit 40 are hard to tangle to the rocking type weeding mechanisms.COPYRIGHT: (C)2015,JPO&INPIT【課題】苗の株間およびその周囲を除草する揺動ツースを有する除草装置において、揺動ツースによる除草効果を高め、かつ、揺動ツースに藻が絡みつくことを抑制できる技術を提供する。【解決手段】本発明の除草装置は、回転して前から後へと水流を発生させる条間回転除草部40と、複数の揺動式除草機構52を有する株間除草部50とを、有する。揺動式除草機構52は、条間回転除草部40の後方に配置される。これにより、条間回転除草部40により発生した水流によって、揺動式除草機構52周辺の藻や雑草が後方へ流されやすい。そのため、揺動式除草機構52の除草効果が向上するとともに、揺動式除草機構52に藻や雑草が絡みついて堆積することを抑制できる。また、揺動式除草機構52は、条間回転除草部40と前後方向に重ならない位置に配置される。したがって、条間回転除草部40が浮き上がらせた雑草が、揺動式除草機構に絡みにくい。【選択図】図2
