< Topic >Plowing the earth in the hoe which possesses the concatenated structure which can be locked in a state where it turns the handle diagonal vis-a-vis the edge, it offers the hoe which the concatenated structural part that tries does not touch the land.SolutionsAs it consists of the flat cylindrical body in the blade floor 1 surface of the hoe, it possesses the crevice 12 where it can provide the projection or the cavity of one or more inside in the surface, to provide the blade floor side engagement section 10 where, male screw 11 was formed to rim being the convex section which in the handle 2 section Tip of the hoe is engaged in the aforementioned crevice, on the aforementioned blade floor face to provide the handle side engagement section 20 which possesses the convex section where it can provide the dent which falls in aforementioned projection rotary position of two or more in respectively in regard to around the abbreviation vertical revolving shaft, or the projection which falls in the aforementioned cavity on the outside, aforementioned blade sideBeing the flat cylindrical body where the female screw 31 which is engaged in the engagement section was formed to the inner circumference, as it possesses the aperture where it passes through the aforementioned pedicel to the surface, it locks the blade floor side engagement section and the handle side engagement section with the holding down section 30 where the projection section 32 which pushes the aforementioned handle side engagement section from the upper part was formed.< Choice figure >Drawing 3【課題】刃先に対して斜めに柄を回転させた状態に固定できる連結構造を有する鍬において、土を耕しても連結構造部分が地面に触れないようにする鍬を提供する。【解決手段】鍬の刃床1上面に偏平な円柱体からなり、内側に一以上の突起又は窪みが設けられた凹部12を上面に有するとともに、外周に雄ねじ11が形成された刃床側係合部10を設け、鍬の柄2部先端に前記凹部に係合する凸部であって、前記刃床面に略垂直な回転軸回りに関して二以上の回転位置のそれぞれにおいて、前記突起に嵌る凹み又は前記窪みに嵌る出っ張りが外面に設けられた凸部を有する柄側係合部20を設け、前記刃側係合部に係合する雌ねじ31が内周に形成された偏平な円筒体であって、上面に前記柄部を通す開口を有するとともに、前記柄側係合部を上方から押し付ける張り出し部32が形成された押さえ部30により刃床側係合部と柄側係合部を固定する。【選択図】図3
