PROBLEM TO BE SOLVED: To provide a tool for solving such problems that a head cap is driven into using a hammer or a mallet in order to stabilize an agriculture and gardening prop, and in that case, the cap has a possibility of being damaged, or a state of setting a prop is not vertical to soil but inclines, and in the case of making a prepared hole with a simple stick-like round steel bar, a hole becomes a rather large prepared hole because a round steel bar is pulled out by shaking when pulling out after driving, and does not become a prepared hole in an appropriate engagement state for a prop.SOLUTION: This prepared hole making tool for an agriculture and gardening prop includes a T shape structure made by welding a horizontal steel pipe to be a handle to the upper end of a vertical steel pipe whose lower end is sharpened in a cone shape. Furthermore, a driving member is set on the center of the handle, and a plumb is attached to the pipe, and consequently, a prepared hole in an appropriate engagement state is made by driving the prepared hole making tool into a goal depth and pulling out while rotating the handle.COPYRIGHT: (C)2012,JPO&INPIT【課題】農園芸支柱は、安定させるためにハンマーや木槌などの道具を用いて頭部キャップを叩き込む、その場合、該キャップが破損する可能性がある。また、支柱を設置した状態が土壌に垂直ではなく傾いてることがある。更に、単なる棒状の丸鋼などで、した穴をあける場合、丸鋼を打ち込んだ後、引き抜く際、揺さぶって抜くので大きめな下穴になり、支柱に適切な嵌合状態の下穴にならないことが課題であった。【解決手段】本発明による農園芸支柱用下穴あけ具は下端を錐形に尖がらせた垂直鋼パイプの上端に、ハンドルにあたる水平鋼パイプを溶接したT字型構造からなり、ハンドルの中央には叩き込み部材が設けられ、また、これ等パイプに下げ振りが取り付けられていることにより、該下穴あけ具を目安深さまで叩き込みハンドルを回転しながら抜くと、適切な嵌合状態の下穴をあけることができる。【選択図】図1
