PROBLEM TO BE SOLVED: To provide a support driver capable of efficiently driving a support into ground.SOLUTION: A support driver 1 includes a fixing member 2 that is fixed to an intermediate part of a support S, and a hammer member 3 that is slidably attached to the support S in an upper position of the fixing member 2. An operator P slides the hammer member 3 upward and downward to make an impact on the fixing member 2. Thus, the support S is driven into the ground.【課題】支柱を効率良く地中に打ち込むことのできる支柱打ち込み器の提供【解決手段】支柱打ち込み器１は、支柱Ｓの中間部に固定される固定部材２と、固定部材２の上方位置において支柱Ｓに摺動可能に装着されるハンマー部材３と、を備える。作業者Ｐがハンマー部材３を上下に摺動させて固定部材２に衝撃を与えることによって、支柱Ｓが地中に打ち込まれる。【選択図】図１
