| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an earth auger apparatus that increases working efficiency of trial digging work by reducing a work load of the trial digging work.SOLUTION: An earth auger apparatus includes an auger motor, and an earth auger device 40 for trial digging, which is driven by the auger motor. The earth auger device 40 for trial digging comprises: a prismatic shaft 41 for trial digging, which is rotatively driven by the auger motor; and an earth auger for trial digging, which is engaged in an axially slidable manner with the prismatic shaft 41 for trial digging and which is rotated integrally with the prismatic shaft 41 for trial digging to excavate a ground surface.</p> |
