| 摘要 |
A transportable drop hammer for impacting a ground surface adapted to be removably coupled to a driven host transport apparatus having lifting arms. An upstanding frame is couplable to the host transport apparatus and is provided as having a stabilizing foot portion attached to the frame for contacting the ground surface. A mast is mast attached to the frame and is disposed substantially vertical to the ground surface. A weight assembly, having a ground confronting face portion and at least one bearing surface engaging the mast, is operable between a ground position impacting the ground surface and a drop position. For selectively raising the weight assembly to a predetermined drop position, a manually controlled lifting apparatus is provided which actuable to release the weight assembly for its substantial free fall from the drop position to the ground position.
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