It is possible to easily extract a column without bringing the upper end of the support hammer main body into contact with the ceiling or the like when extracting the support from the support hammer main body even if the support hammer main body is extended so that both hands can reach sufficiently Provide strut hammer.SOLUTION: A strut hammer 1 striking with a stroke of a hitting portion 19 in a vertical direction in a state where a weight 12 fixed to a bottom portion 11 of a support hammer main body 10 is put in abutment against a top portion H 1 of a support H Premise. The support hammer main body 10 has a pair of holding portions 14 at the lower end portion thereof which can be grasped in the vicinity of the shoulder W 1 of the worker W in a state of accommodating the substantially half length of the support columns H of about 2100 mm in length Length is set. The strut hammer main body 10 is provided with a notch 17 formed by cutting a space between a lower portion and a lower end outside the stroke in a state where the stroke of the striking portion 19 is secured, and the struts H driven into the soil R are introduced into the accommodating portion 13 So that it can be pulled out and inserted through the cutout portion 17.BACKGROUND OF THE INVENTION【課題】支柱ハンマー本体を伸ばして十分に両手が届くようにしても、支柱を支柱ハンマー本体内から抜き取る際に支柱ハンマー本体の上端が天井などに接触させずに支柱を簡単に抜き取ることができる支柱ハンマーを提供する。【解決手段】支柱Hの頂部H1に対し支柱ハンマー本体10の底部11に固着した錘12を当接させるように被せた状態での上下方向への打撃部19のストロークにより打撃する支柱ハンマー1を前提とする。支柱ハンマー本体10を、2100mm程度の長さの支柱Hであってもその略半分の長さを収容した状態で作業者Wの肩W1付近で把持可能な一対の把持部14を下端部に有する長さに設定している。支柱ハンマー本体10は、打撃部19のストロークを確保した状態でそのストローク外の下側部分と下端との間を切り欠いた切欠部17を備え、土壌Rに打ち込んだ支柱Hを収容部13内に対し切欠部17を介して抜き差し可能にしている。【選択図】図1
