| 摘要 |
PROBLEM TO BE SOLVED: To secure stable and accurate digging by providing a simple addition device for preventing the vibration of a driving device part. SOLUTION: In the multi-spindle auger device where a leader mast is erected in a base machine by a heavy machine, a driving device where a digging rod is interlocked is suspended from the top sheave of the leader mast while the driving device can be freely and vertically moved, and a guide for holding the front-side leader of the leader mast on a back surface is provided in the driving device, a second leader 10 is provided at the side of a leader mast 2, a bracket 11 projects in a driving device 5, and a second guide 12 for holding the second leader 10 is provided in the bracket 11.
|
